]> git.sesse.net Git - kdenlive/blobdiff - src/customtrackview.cpp
automatically select if we should export audio or not:
[kdenlive] / src / customtrackview.cpp
index 32d5b94b74e54dca560d80aa46c4c20dbc067e39..7913e0d27616c2722d34abb77cb97a9f84cd2a1b 100644 (file)
@@ -19,7 +19,6 @@
 
 
 #include "customtrackview.h"
-#include "customtrackscene.h"
 #include "docclipbase.h"
 #include "clipitem.h"
 #include "definitions.h"
@@ -49,7 +48,6 @@
 #include "insertspacecommand.h"
 #include "spacerdialog.h"
 #include "addtrackcommand.h"
-#include "changetrackcommand.h"
 #include "movegroupcommand.h"
 #include "ui_addtrack_ui.h"
 #include "initeffects.h"
 #include "groupclipscommand.h"
 #include "splitaudiocommand.h"
 #include "changecliptypecommand.h"
+#include "trackdialog.h"
+#include "tracksconfigdialog.h"
+#include "configtrackscommand.h"
+#include "rebuildgroupcommand.h"
+#include "razorgroupcommand.h"
 
 #include <KDebug>
 #include <KLocale>
@@ -64,6 +67,8 @@
 #include <KIcon>
 #include <KCursor>
 #include <KColorScheme>
+#include <KMessageBox>
+#include <KIO/NetAccess>
 
 #include <QMouseEvent>
 #include <QStylePainter>
 #include <QInputDialog>
 
 
+#if QT_VERSION >= 0x040600
+#include <QGraphicsDropShadowEffect>
+#endif
+
 bool sortGuidesList(const Guide *g1 , const Guide *g2)
 {
     return (*g1).position() < (*g2).position();
@@ -113,12 +122,20 @@ CustomTrackView::CustomTrackView(KdenliveDoc *doc, CustomTrackScene* projectscen
         m_copiedItems(),
         m_menuPosition(),
         m_blockRefresh(false),
-        m_selectionGroup(NULL)
+        m_selectionGroup(NULL),
+        m_selectedTrack(0)
 {
     if (doc) m_commandStack = doc->commandStack();
     else m_commandStack = NULL;
     setMouseTracking(true);
     setAcceptDrops(true);
+    setFrameShape(QFrame::NoFrame);
+    setLineWidth(0);
+    //setCacheMode(QGraphicsView::CacheBackground);
+    //setViewportUpdateMode(QGraphicsView::FullViewportUpdate);
+    setViewportUpdateMode(QGraphicsView::SmartViewportUpdate);
+
+    pixmapCache = new KPixmapCache("kdenlive-thumbs");
     KdenliveSettings::setTrackheight(m_tracksHeight);
     m_animationTimer = new QTimeLine(800);
     m_animationTimer->setFrameRange(0, 5);
@@ -129,15 +146,17 @@ CustomTrackView::CustomTrackView(KdenliveDoc *doc, CustomTrackScene* projectscen
     m_tipPen.setColor(border);
     m_tipPen.setWidth(3);
     setContentsMargins(0, 0, 0, 0);
-    const int maxWidth = m_tracksHeight * m_document->tracksCount();
-    setSceneRect(0, 0, sceneRect().width(), maxWidth);
-    verticalScrollBar()->setMaximum(maxWidth);
-    m_cursorLine = projectscene->addLine(0, 0, 0, maxWidth);
+    const int maxHeight = m_tracksHeight * m_document->tracksCount();
+    setSceneRect(0, 0, sceneRect().width(), maxHeight);
+    verticalScrollBar()->setMaximum(maxHeight);
+    m_cursorLine = projectscene->addLine(0, 0, 0, maxHeight);
     m_cursorLine->setZValue(1000);
-    QPen pen1;
-    pen1.setWidthF(1.0);
-    pen1.setCosmetic(true);
+
+    QPen pen1 = QPen();
+    pen1.setWidth(1);
+    pen1.setColor(palette().text().color());
     m_cursorLine->setPen(pen1);
+    m_cursorLine->setFlag(QGraphicsItem::ItemIgnoresTransformations, true);
 
     KIcon razorIcon("edit-cut");
     m_razorCursor = QCursor(razorIcon.pixmap(22, 22));
@@ -154,24 +173,48 @@ CustomTrackView::CustomTrackView(KdenliveDoc *doc, CustomTrackScene* projectscen
     connect(&m_thumbsTimer, SIGNAL(timeout()), this, SLOT(slotFetchNextThumbs()));
     m_thumbsTimer.setInterval(500);
     m_thumbsTimer.setSingleShot(true);
+
+    connect(&m_audioMonitorTimer, SIGNAL(timeout()), this, SIGNAL(documentModified()));
+    m_audioMonitorTimer.setInterval(2000);
+    m_audioMonitorTimer.setSingleShot(true);
 }
 
 CustomTrackView::~CustomTrackView()
 {
     qDeleteAll(m_guides);
+    m_guides.clear();
     m_waitingThumbs.clear();
 }
 
+//virtual
+void CustomTrackView::keyPressEvent(QKeyEvent * event)
+{
+    if (event->key() == Qt::Key_Up) {
+        slotTrackUp();
+        event->accept();
+    } else if (event->key() == Qt::Key_Down) {
+        slotTrackDown();
+        event->accept();
+    } else QWidget::keyPressEvent(event);
+}
+
 void CustomTrackView::setDocumentModified()
 {
     m_document->setModified(true);
+    m_audioMonitorTimer.start();
 }
 
-void CustomTrackView::setContextMenu(QMenu *timeline, QMenu *clip, QMenu *transition, QActionGroup *clipTypeGroup)
+void CustomTrackView::setContextMenu(QMenu *timeline, QMenu *clip, QMenu *transition, QActionGroup *clipTypeGroup, QMenu *markermenu)
 {
     m_timelineContextMenu = timeline;
     m_timelineContextClipMenu = clip;
     m_clipTypeGroup = clipTypeGroup;
+    connect(m_timelineContextMenu, SIGNAL(aboutToHide()), this, SLOT(slotResetMenuPosition()));
+
+    m_markerMenu = new QMenu(i18n("Go to marker..."), this);
+    m_markerMenu->setEnabled(false);
+    markermenu->addMenu(m_markerMenu);
+    connect(m_markerMenu, SIGNAL(triggered(QAction *)), this, SLOT(slotGoToMarker(QAction *)));
     QList <QAction *> list = m_timelineContextClipMenu->actions();
     for (int i = 0; i < list.count(); i++) {
         if (list.at(i)->data().toString() == "paste_effects") m_pasteEffectsAction = list.at(i);
@@ -197,6 +240,17 @@ void CustomTrackView::setContextMenu(QMenu *timeline, QMenu *clip, QMenu *transi
     m_timelineContextMenu->addAction(m_editGuide);
 }
 
+void CustomTrackView::slotDoResetMenuPosition()
+{
+    m_menuPosition = QPoint();
+}
+
+void CustomTrackView::slotResetMenuPosition()
+{
+    // after a short time (so that the action is triggered / or menu is closed, we reset the menu pos
+    QTimer::singleShot(300, this, SLOT(slotDoResetMenuPosition()));
+}
+
 void CustomTrackView::checkAutoScroll()
 {
     m_autoScroll = KdenliveSettings::autoscroll();
@@ -228,11 +282,12 @@ void CustomTrackView::checkTrackHeight()
             transitionitem->setPos((qreal) transitionitem->startPos().frames(m_document->fps()), (qreal) transitionitem->track() * m_tracksHeight + m_tracksHeight / 3 * 2);
         }
     }
-    m_cursorLine->setLine(m_cursorLine->line().x1(), 0, m_cursorLine->line().x1(), m_tracksHeight * m_document->tracksCount());
+    double newHeight = m_tracksHeight * m_document->tracksCount() * matrix().m22();
+    m_cursorLine->setLine(m_cursorLine->line().x1(), 0, m_cursorLine->line().x1(), newHeight);
 
     for (int i = 0; i < m_guides.count(); i++) {
         QLineF l = m_guides.at(i)->line();
-        l.setP2(QPointF(l.x2(), m_tracksHeight * m_document->tracksCount()));
+        l.setP2(QPointF(l.x2(), newHeight));
         m_guides.at(i)->setLine(l);
     }
 
@@ -311,17 +366,18 @@ void CustomTrackView::slotCheckPositionScrolling()
 
 
 // virtual
-
 void CustomTrackView::mouseMoveEvent(QMouseEvent * event)
 {
     int pos = event->x();
-    int mappedXPos = (int)(mapToScene(event->pos()).x() + 0.5);
+    int mappedXPos = qMax((int)(mapToScene(event->pos()).x() + 0.5), 0);
+    double snappedPos = getSnapPointForPos(mappedXPos);
     emit mousePosition(mappedXPos);
 
     if (event->buttons() & Qt::MidButton) return;
-    if (m_operationMode == RUBBERSELECTION || (event->modifiers() == Qt::ControlModifier && m_tool != SPACERTOOL)) {
-        QGraphicsView::mouseMoveEvent(event);
+    if (dragMode() == QGraphicsView::RubberBandDrag || (event->modifiers() == Qt::ControlModifier && m_tool != SPACERTOOL && m_operationMode != RESIZESTART && m_operationMode != RESIZEEND)) {
+        event->setAccepted(true);
         m_moveOpMode = NONE;
+        QGraphicsView::mouseMoveEvent(event);
         return;
     }
 
@@ -337,16 +393,27 @@ void CustomTrackView::mouseMoveEvent(QMouseEvent * event)
                 } else if (viewport()->width() - pos < 10) {
                     m_scrollOffset = 30;
                     m_scrollTimer.start();
-                } else if (m_scrollTimer.isActive()) m_scrollTimer.stop();
-
+                } else if (m_scrollTimer.isActive()) {
+                    m_scrollTimer.stop();
+                }
             } else if (m_operationMode == RESIZESTART && move) {
-                double snappedPos = getSnapPointForPos(mappedXPos);
                 m_document->renderer()->pause();
-                m_dragItem->resizeStart((int)(snappedPos));
+                if (event->modifiers() != Qt::ControlModifier && m_dragItem->type() == AVWIDGET && m_dragItem->parentItem() && m_dragItem->parentItem() != m_selectionGroup) {
+                    AbstractGroupItem *parent = static_cast <AbstractGroupItem *>(m_dragItem->parentItem());
+                    if (parent)
+                        parent->resizeStart((int)(snappedPos) - m_dragItemInfo.startPos.frames(m_document->fps()));
+                } else {
+                    m_dragItem->resizeStart((int)(snappedPos));
+                }
             } else if (m_operationMode == RESIZEEND && move) {
-                double snappedPos = getSnapPointForPos(mappedXPos);
                 m_document->renderer()->pause();
-                m_dragItem->resizeEnd((int)(snappedPos));
+                if (event->modifiers() != Qt::ControlModifier && m_dragItem->type() == AVWIDGET && m_dragItem->parentItem() && m_dragItem->parentItem() != m_selectionGroup) {
+                    AbstractGroupItem *parent = static_cast <AbstractGroupItem *>(m_dragItem->parentItem());
+                    if (parent)
+                        parent->resizeEnd((int)(snappedPos) - m_dragItemInfo.endPos.frames(m_document->fps()));
+                } else {
+                    m_dragItem->resizeEnd((int)(snappedPos));
+                }
             } else if (m_operationMode == FADEIN && move) {
                 ((ClipItem*) m_dragItem)->setFadeIn((int)(mappedXPos - m_dragItem->startPos().frames(m_document->fps())));
             } else if (m_operationMode == FADEOUT && move) {
@@ -359,24 +426,116 @@ void CustomTrackView::mouseMoveEvent(QMouseEvent * event)
                 pos = (br.bottom() - pos) * maxh;
                 m_dragItem->updateKeyFramePos(keyFramePos, pos);
             }
-            m_animationTimer->stop();
-            delete m_animation;
-            m_animation = NULL;
-            delete m_visualTip;
-            m_visualTip = NULL;
+            removeTipAnimation();
             return;
         } else if (m_operationMode == MOVEGUIDE) {
-            m_animationTimer->stop();
-            delete m_animation;
-            m_animation = NULL;
-            delete m_visualTip;
-            m_visualTip = NULL;
+            removeTipAnimation();
             QGraphicsView::mouseMoveEvent(event);
             return;
         } else if (m_operationMode == SPACER && move && m_selectionGroup) {
             // spacer tool
-            int mappedClick = (int)(mapToScene(m_clickEvent).x() + 0.5);
-            m_selectionGroup->setPos(mappedXPos + (((int) m_selectionGroup->boundingRect().topLeft().x() + 0.5) - mappedClick) , m_selectionGroup->pos().y());
+            snappedPos = getSnapPointForPos(mappedXPos + m_spacerOffset);
+            if (snappedPos < 0) snappedPos = 0;
+
+            // Make sure there is no collision
+            QList<QGraphicsItem *> children = m_selectionGroup->childItems();
+            QPainterPath shape = m_selectionGroup->clipGroupShape(QPointF(snappedPos - m_selectionGroup->sceneBoundingRect().left(), 0));
+            QList<QGraphicsItem*> collidingItems = scene()->items(shape, Qt::IntersectsItemShape);
+            collidingItems.removeAll(m_selectionGroup);
+            for (int i = 0; i < children.count(); i++) {
+                if (children.at(i)->type() == GROUPWIDGET) {
+                    QList<QGraphicsItem *> subchildren = children.at(i)->childItems();
+                    for (int j = 0; j < subchildren.count(); j++)
+                        collidingItems.removeAll(subchildren.at(j));
+                }
+                collidingItems.removeAll(children.at(i));
+            }
+            bool collision = false;
+            int offset = 0;
+            for (int i = 0; i < collidingItems.count(); i++) {
+                if (!collidingItems.at(i)->isEnabled()) continue;
+                if (collidingItems.at(i)->type() == AVWIDGET && snappedPos < m_selectionGroup->sceneBoundingRect().left()) {
+                    AbstractClipItem *item = static_cast <AbstractClipItem *>(collidingItems.at(i));
+                    // Moving backward, determine best pos
+                    QPainterPath clipPath;
+                    clipPath.addRect(item->sceneBoundingRect());
+                    QPainterPath res = shape.intersected(clipPath);
+                    offset = qMax(offset, (int)(res.boundingRect().width() + 0.5));
+                }
+            }
+            snappedPos += offset;
+            // make sure we have no collision
+            shape = m_selectionGroup->clipGroupShape(QPointF(snappedPos - m_selectionGroup->sceneBoundingRect().left(), 0));
+            collidingItems = scene()->items(shape, Qt::IntersectsItemShape);
+            collidingItems.removeAll(m_selectionGroup);
+            for (int i = 0; i < children.count(); i++) {
+                if (children.at(i)->type() == GROUPWIDGET) {
+                    QList<QGraphicsItem *> subchildren = children.at(i)->childItems();
+                    for (int j = 0; j < subchildren.count(); j++)
+                        collidingItems.removeAll(subchildren.at(j));
+                }
+                collidingItems.removeAll(children.at(i));
+            }
+
+            for (int i = 0; i < collidingItems.count(); i++) {
+                if (!collidingItems.at(i)->isEnabled()) continue;
+                if (collidingItems.at(i)->type() == AVWIDGET) {
+                    collision = true;
+                    break;
+                }
+            }
+
+
+            if (!collision) {
+                // Check transitions
+                shape = m_selectionGroup->transitionGroupShape(QPointF(snappedPos - m_selectionGroup->sceneBoundingRect().left(), 0));
+                collidingItems = scene()->items(shape, Qt::IntersectsItemShape);
+                collidingItems.removeAll(m_selectionGroup);
+                for (int i = 0; i < children.count(); i++) {
+                    if (children.at(i)->type() == GROUPWIDGET) {
+                        QList<QGraphicsItem *> subchildren = children.at(i)->childItems();
+                        for (int j = 0; j < subchildren.count(); j++)
+                            collidingItems.removeAll(subchildren.at(j));
+                    }
+                    collidingItems.removeAll(children.at(i));
+                }
+                offset = 0;
+
+                for (int i = 0; i < collidingItems.count(); i++) {
+                    if (collidingItems.at(i)->type() == TRANSITIONWIDGET && snappedPos < m_selectionGroup->sceneBoundingRect().left()) {
+                        AbstractClipItem *item = static_cast <AbstractClipItem *>(collidingItems.at(i));
+                        // Moving backward, determine best pos
+                        QPainterPath clipPath;
+                        clipPath.addRect(item->sceneBoundingRect());
+                        QPainterPath res = shape.intersected(clipPath);
+                        offset = qMax(offset, (int)(res.boundingRect().width() + 0.5));
+                    }
+                }
+
+                snappedPos += offset;
+                // make sure we have no collision
+                shape = m_selectionGroup->transitionGroupShape(QPointF(snappedPos - m_selectionGroup->sceneBoundingRect().left(), 0));
+                collidingItems = scene()->items(shape, Qt::IntersectsItemShape);
+                collidingItems.removeAll(m_selectionGroup);
+                for (int i = 0; i < children.count(); i++) {
+                    if (children.at(i)->type() == GROUPWIDGET) {
+                        QList<QGraphicsItem *> subchildren = children.at(i)->childItems();
+                        for (int j = 0; j < subchildren.count(); j++)
+                            collidingItems.removeAll(subchildren.at(j));
+                    }
+                    collidingItems.removeAll(children.at(i));
+                }
+                for (int i = 0; i < collidingItems.count(); i++) {
+                    if (collidingItems.at(i)->type() == TRANSITIONWIDGET) {
+                        collision = true;
+                        break;
+                    }
+                }
+            }
+
+            if (!collision)
+                m_selectionGroup->translate(snappedPos - m_selectionGroup->sceneBoundingRect().left(), 0);
+            //m_selectionGroup->setPos(mappedXPos + (((int) m_selectionGroup->boundingRect().topLeft().x() + 0.5) - mappedClick) , m_selectionGroup->pos().y());
         }
     }
 
@@ -406,9 +565,9 @@ void CustomTrackView::mouseMoveEvent(QMouseEvent * event)
         AbstractClipItem *clip = static_cast <AbstractClipItem*>(item);
         if (m_tool == RAZORTOOL) {
             // razor tool over a clip, display current frame in monitor
-            if (false && /*!m_blockRefresh && */item->type() == AVWIDGET) {
+            if (false && !m_blockRefresh && item->type() == AVWIDGET) {
                 //TODO: solve crash when showing frame when moving razor over clip
-                emit showClipFrame(((ClipItem *) item)->baseClip(), mappedXPos - (clip->startPos() - clip->cropStart()).frames(m_document->fps()));
+                emit showClipFrame(((ClipItem *) item)->baseClip(), QPoint(), mappedXPos - (clip->startPos() - clip->cropStart()).frames(m_document->fps()));
             }
             event->accept();
             return;
@@ -419,153 +578,48 @@ void CustomTrackView::mouseMoveEvent(QMouseEvent * event)
             QGraphicsView::mouseMoveEvent(event);
             return;
         } else {
-            if (m_visualTip) {
-                m_animationTimer->stop();
-                delete m_animation;
-                m_animation = NULL;
-                delete m_visualTip;
-                m_visualTip = NULL;
-            }
+            removeTipAnimation();
         }
         m_moveOpMode = opMode;
+        setTipAnimation(clip, opMode, size);
         if (opMode == MOVE) {
             setCursor(Qt::OpenHandCursor);
+            if (item->type() == AVWIDGET) {
+                ClipItem *ci = static_cast <ClipItem *>(item);
+                QString message = ci->clipName() + i18n(":");
+                message.append(i18n(" Position:") + m_document->timecode().getDisplayTimecode(ci->info().startPos, KdenliveSettings::frametimecode()));
+                message.append(i18n(" Duration:") + m_document->timecode().getDisplayTimecode(ci->cropDuration(),  KdenliveSettings::frametimecode()));
+                if (clip->parentItem() && clip->parentItem()->type() == GROUPWIDGET) {
+                    AbstractGroupItem *parent = static_cast <AbstractGroupItem *>(clip->parentItem());
+                    if (clip->parentItem() == m_selectionGroup)
+                        message.append(i18n(" Selection duration:"));
+                    else
+                        message.append(i18n(" Group duration:"));
+                    message.append(m_document->timecode().getDisplayTimecode(parent->duration(), KdenliveSettings::frametimecode()));
+                    if (parent->parentItem() && parent->parentItem()->type() == GROUPWIDGET) {
+                        AbstractGroupItem *parent2 = static_cast <AbstractGroupItem *>(parent->parentItem());
+                        message.append(i18n(" Selection duration:") + m_document->timecode().getDisplayTimecode(parent2->duration(), KdenliveSettings::frametimecode()));
+                    }
+                }
+                emit displayMessage(message, InformationMessage);
+            }
         } else if (opMode == RESIZESTART) {
             setCursor(KCursor("left_side", Qt::SizeHorCursor));
-            if (m_visualTip == NULL) {
-                QRectF rect = clip->sceneBoundingRect();
-                QPolygon polygon;
-                polygon << QPoint(0, - size * 2);
-                polygon << QPoint(size * 2, 0);
-                polygon << QPoint(0, size * 2);
-                polygon << QPoint(0, - size * 2);
-
-                m_visualTip = new QGraphicsPolygonItem(polygon);
-                ((QGraphicsPolygonItem*) m_visualTip)->setBrush(m_tipColor);
-                ((QGraphicsPolygonItem*) m_visualTip)->setPen(m_tipPen);
-                m_visualTip->setPos(rect.x(), rect.y() + rect.height() / 2);
-                m_visualTip->setFlags(QGraphicsItem::ItemIgnoresTransformations);
-                m_visualTip->setZValue(100);
-                m_animation = new QGraphicsItemAnimation;
-                m_animation->setItem(m_visualTip);
-                m_animation->setTimeLine(m_animationTimer);
-                m_animation->setScaleAt(.5, 2, 1);
-                m_animation->setScaleAt(1, 1, 1);
-                scene()->addItem(m_visualTip);
-                m_animationTimer->start();
-            }
+            if (item->type() == AVWIDGET && item->parentItem() && item->parentItem() != m_selectionGroup)
+                emit displayMessage(i18n("Use Ctrl to resize only current item, otherwise all items in this group will be resized at once."), InformationMessage);
         } else if (opMode == RESIZEEND) {
             setCursor(KCursor("right_side", Qt::SizeHorCursor));
-            if (m_visualTip == NULL) {
-                QRectF rect = clip->sceneBoundingRect();
-                QPolygon polygon;
-                polygon << QPoint(0, - size * 2);
-                polygon << QPoint(- size * 2, 0);
-                polygon << QPoint(0, size * 2);
-                polygon << QPoint(0, - size * 2);
-
-                m_visualTip = new QGraphicsPolygonItem(polygon);
-                ((QGraphicsPolygonItem*) m_visualTip)->setBrush(m_tipColor);
-                ((QGraphicsPolygonItem*) m_visualTip)->setPen(m_tipPen);
-                m_visualTip->setFlags(QGraphicsItem::ItemIgnoresTransformations);
-                m_visualTip->setPos(rect.right(), rect.y() + rect.height() / 2);
-                m_visualTip->setZValue(100);
-                m_animation = new QGraphicsItemAnimation;
-                m_animation->setItem(m_visualTip);
-                m_animation->setTimeLine(m_animationTimer);
-                m_animation->setScaleAt(.5, 2, 1);
-                m_animation->setScaleAt(1, 1, 1);
-                scene()->addItem(m_visualTip);
-                m_animationTimer->start();
-            }
-        } else if (opMode == FADEIN) {
-            if (m_visualTip == NULL) {
-                ClipItem *item = (ClipItem *) clip;
-                QRectF rect = clip->sceneBoundingRect();
-                m_visualTip = new QGraphicsEllipseItem(-size, -size, size * 2, size * 2);
-                ((QGraphicsEllipseItem*) m_visualTip)->setBrush(m_tipColor);
-                ((QGraphicsEllipseItem*) m_visualTip)->setPen(m_tipPen);
-                m_visualTip->setPos(rect.x() + item->fadeIn(), rect.y());
-                m_visualTip->setFlags(QGraphicsItem::ItemIgnoresTransformations);
-                m_visualTip->setZValue(100);
-                m_animation = new QGraphicsItemAnimation;
-                m_animation->setItem(m_visualTip);
-                m_animation->setTimeLine(m_animationTimer);
-                m_animation->setScaleAt(.5, 2, 2);
-                m_animation->setScaleAt(1, 1, 1);
-                scene()->addItem(m_visualTip);
-                m_animationTimer->start();
-            }
-            setCursor(Qt::PointingHandCursor);
-        } else if (opMode == FADEOUT) {
-            if (m_visualTip == NULL) {
-                ClipItem *item = (ClipItem *) clip;
-                QRectF rect = clip->sceneBoundingRect();
-                m_visualTip = new QGraphicsEllipseItem(-size, -size, size * 2, size * 2);
-                ((QGraphicsEllipseItem*) m_visualTip)->setBrush(m_tipColor);
-                ((QGraphicsEllipseItem*) m_visualTip)->setPen(m_tipPen);
-                m_visualTip->setPos(rect.right() - item->fadeOut(), rect.y());
-                m_visualTip->setFlags(QGraphicsItem::ItemIgnoresTransformations);
-                m_visualTip->setZValue(100);
-                m_animation = new QGraphicsItemAnimation;
-                m_animation->setItem(m_visualTip);
-                m_animation->setTimeLine(m_animationTimer);
-                m_animation->setScaleAt(.5, 2, 2);
-                m_animation->setScaleAt(1, 1, 1);
-                scene()->addItem(m_visualTip);
-                m_animationTimer->start();
-            }
+            if (item->type() == AVWIDGET && item->parentItem() && item->parentItem() != m_selectionGroup)
+                emit displayMessage(i18n("Use Ctrl to resize only current item, otherwise all items in this group will be resized at once."), InformationMessage);
+        } else if (opMode == FADEIN || opMode == FADEOUT) {
             setCursor(Qt::PointingHandCursor);
-        } else if (opMode == TRANSITIONSTART) {
-            if (m_visualTip == NULL) {
-                QRectF rect = clip->sceneBoundingRect();
-                QPolygon polygon;
-                polygon << QPoint(0, - size * 2);
-                polygon << QPoint(size * 2, 0);
-                polygon << QPoint(0, 0);
-                polygon << QPoint(0, - size * 2);
-
-                m_visualTip = new QGraphicsPolygonItem(polygon);
-                ((QGraphicsPolygonItem*) m_visualTip)->setBrush(m_tipColor);
-                ((QGraphicsPolygonItem*) m_visualTip)->setPen(m_tipPen);
-                m_visualTip->setPos(rect.x(), rect.bottom());
-                m_visualTip->setFlags(QGraphicsItem::ItemIgnoresTransformations);
-                m_visualTip->setZValue(100);
-                m_animation = new QGraphicsItemAnimation;
-                m_animation->setItem(m_visualTip);
-                m_animation->setTimeLine(m_animationTimer);
-                m_animation->setScaleAt(.5, 2, 2);
-                m_animation->setScaleAt(1, 1, 1);
-                scene()->addItem(m_visualTip);
-                m_animationTimer->start();
-            }
-            setCursor(Qt::PointingHandCursor);
-        } else if (opMode == TRANSITIONEND) {
-            if (m_visualTip == NULL) {
-                QRectF rect = clip->sceneBoundingRect();
-                QPolygon polygon;
-                polygon << QPoint(0, - size * 2);
-                polygon << QPoint(- size * 2, 0);
-                polygon << QPoint(0, 0);
-                polygon << QPoint(0, - size * 2);
-
-                m_visualTip = new QGraphicsPolygonItem(polygon);
-                ((QGraphicsPolygonItem*) m_visualTip)->setBrush(m_tipColor);
-                ((QGraphicsPolygonItem*) m_visualTip)->setPen(m_tipPen);
-                m_visualTip->setPos(rect.right(), rect.bottom());
-                m_visualTip->setFlags(QGraphicsItem::ItemIgnoresTransformations);
-                m_visualTip->setZValue(100);
-                m_animation = new QGraphicsItemAnimation;
-                m_animation->setItem(m_visualTip);
-                m_animation->setTimeLine(m_animationTimer);
-                m_animation->setScaleAt(.5, 2, 2);
-                m_animation->setScaleAt(1, 1, 1);
-                scene()->addItem(m_visualTip);
-                m_animationTimer->start();
-            }
+            emit displayMessage(i18n("Drag to add or resize a fade effect."), InformationMessage);
+        } else if (opMode == TRANSITIONSTART || opMode == TRANSITIONEND) {
             setCursor(Qt::PointingHandCursor);
+            emit displayMessage(i18n("Click to add a transition."), InformationMessage);
         } else if (opMode == KEYFRAME) {
             setCursor(Qt::PointingHandCursor);
+            emit displayMessage(i18n("Move keyframe above or below clip to remove it, double click to add a new one."), InformationMessage);
         }
     } // no clip under mouse
     else if (m_tool == RAZORTOOL) {
@@ -575,14 +629,7 @@ void CustomTrackView::mouseMoveEvent(QMouseEvent * event)
         m_moveOpMode = opMode;
         setCursor(Qt::SplitHCursor);
     } else {
-        if (m_visualTip) {
-            m_animationTimer->stop();
-            delete m_animation;
-            m_animation = NULL;
-            delete m_visualTip;
-            m_visualTip = NULL;
-
-        }
+        removeTipAnimation();
         setCursor(Qt::ArrowCursor);
         if (event->buttons() != Qt::NoButton && event->modifiers() == Qt::NoModifier) {
             QGraphicsView::mouseMoveEvent(event);
@@ -603,7 +650,7 @@ void CustomTrackView::mousePressEvent(QMouseEvent * event)
 
     // special cases (middle click button or ctrl / shift click
     if (event->button() == Qt::MidButton) {
-        m_document->renderer()->switchPlay();
+        emit playMonitor();
         m_blockRefresh = false;
         m_operationMode = NONE;
         return;
@@ -611,14 +658,15 @@ void CustomTrackView::mousePressEvent(QMouseEvent * event)
 
     if (event->modifiers() & Qt::ShiftModifier) {
         // Rectangle selection
+        setViewportUpdateMode(QGraphicsView::FullViewportUpdate);
         setDragMode(QGraphicsView::RubberBandDrag);
         if (!(event->modifiers() & Qt::ControlModifier)) {
             resetSelectionGroup();
             scene()->clearSelection();
         }
-        QGraphicsView::mousePressEvent(event);
         m_blockRefresh = false;
         m_operationMode = RUBBERSELECTION;
+        QGraphicsView::mousePressEvent(event);
         return;
     }
 
@@ -673,9 +721,12 @@ void CustomTrackView::mousePressEvent(QMouseEvent * event)
     while (!m_dragGuide && ct < collisionList.count()) {
         if (collisionList.at(ct)->type() == AVWIDGET || collisionList.at(ct)->type() == TRANSITIONWIDGET) {
             collisionClip = static_cast <AbstractClipItem *>(collisionList.at(ct));
-            if (collisionClip == m_dragItem) {
+            if (collisionClip->isItemLocked())
+                break;
+            if (collisionClip == m_dragItem)
                 collisionClip = NULL;
-            } else m_dragItem = collisionClip;
+            else
+                m_dragItem = collisionClip;
             found = true;
             m_dragItemInfo = m_dragItem->info();
             if (m_dragItem->parentItem() && m_dragItem->parentItem()->type() == GROUPWIDGET && m_dragItem->parentItem() != m_selectionGroup) {
@@ -686,8 +737,18 @@ void CustomTrackView::mousePressEvent(QMouseEvent * event)
         }
         ct++;
     }
-    if (!found) m_dragItem = NULL;
-
+    if (!found) {
+        if (m_dragItem) emit clipItemSelected(NULL);
+        m_dragItem = NULL;
+    }
+#if QT_VERSION >= 0x040600
+    // Add shadow to dragged item, currently disabled because of painting artifacts
+    //TODO: re-enable when fixed
+    /*QGraphicsDropShadowEffect *eff = new QGraphicsDropShadowEffect();
+    eff->setBlurRadius(5);
+    eff->setOffset(3, 3);
+    m_dragItem->setGraphicsEffect(eff);*/
+#endif
     if (m_dragItem && m_dragItem->type() == TRANSITIONWIDGET) {
         // update transition menu action
         m_autoTransition->setChecked(static_cast<Transition *>(m_dragItem)->isAutomatic());
@@ -734,14 +795,27 @@ void CustomTrackView::mousePressEvent(QMouseEvent * event)
         setCursor(Qt::ArrowCursor);
         m_scene->clearSelection();
         //event->accept();
-        emit clipItemSelected(NULL);
         updateClipTypeActions(NULL);
         if (m_tool == SPACERTOOL) {
             QList<QGraphicsItem *> selection;
             if (event->modifiers() == Qt::ControlModifier) {
                 // Ctrl + click, select all items on track after click position
                 int track = (int)(mapToScene(m_clickEvent).y() / m_tracksHeight);
-                selection = items(m_clickEvent.x(), track * m_tracksHeight + m_tracksHeight / 2, mapFromScene(sceneRect().width(), 0).x() - m_clickEvent.x(), m_tracksHeight / 2 - 2);
+                if (m_document->trackInfoAt(m_document->tracksCount() - track - 1).isLocked) {
+                    // Cannot use spacer on locked track
+                    emit displayMessage(i18n("Cannot use spacer in a locked track"), ErrorMessage);
+                    return;
+                }
+
+                QRectF rect(mapToScene(m_clickEvent).x(), track * m_tracksHeight + m_tracksHeight / 2, sceneRect().width() - mapToScene(m_clickEvent).x(), m_tracksHeight / 2 - 2);
+
+                bool isOk;
+                selection = checkForGroups(rect, &isOk);
+                if (!isOk) {
+                    // groups found on track, do not allow the move
+                    emit displayMessage(i18n("Cannot use spacer in a track with a group"), ErrorMessage);
+                    return;
+                }
 
                 kDebug() << "SPACER TOOL + CTRL, SELECTING ALL CLIPS ON TRACK " << track << " WITH SELECTION RECT " << m_clickEvent.x() << "/" <<  track * m_tracksHeight + 1 << "; " << mapFromScene(sceneRect().width(), 0).x() - m_clickEvent.x() << "/" << m_tracksHeight - 2;
             } else {
@@ -751,24 +825,36 @@ void CustomTrackView::mousePressEvent(QMouseEvent * event)
             }
 
             QList <GenTime> offsetList;
+            // create group to hold selected items
+            m_selectionGroup = new AbstractGroupItem(m_document->fps());
+            scene()->addItem(m_selectionGroup);
+
             for (int i = 0; i < selection.count(); i++) {
-                if (selection.at(i)->type() == AVWIDGET || selection.at(i)->type() == TRANSITIONWIDGET) {
+                if (selection.at(i)->parentItem() == 0 && (selection.at(i)->type() == AVWIDGET || selection.at(i)->type() == TRANSITIONWIDGET)) {
                     AbstractClipItem *item = static_cast<AbstractClipItem *>(selection.at(i));
+                    if (item->isItemLocked()) continue;
                     offsetList.append(item->startPos());
                     offsetList.append(item->endPos());
-                    selection.at(i)->setSelected(true);
-                }
-                if (selection.at(i)->type() == GROUPWIDGET) {
+                    m_selectionGroup->addToGroup(selection.at(i));
+                    selection.at(i)->setFlag(QGraphicsItem::ItemIsMovable, false);
+                } else if (/*selection.at(i)->parentItem() == 0 && */selection.at(i)->type() == GROUPWIDGET) {
+                    if (static_cast<AbstractGroupItem *>(selection.at(i))->isItemLocked()) continue;
                     QList<QGraphicsItem *> children = selection.at(i)->childItems();
                     for (int j = 0; j < children.count(); j++) {
                         AbstractClipItem *item = static_cast<AbstractClipItem *>(children.at(j));
                         offsetList.append(item->startPos());
                         offsetList.append(item->endPos());
                     }
-                    selection.at(i)->setSelected(true);
+                    m_selectionGroup->addToGroup(selection.at(i));
+                    selection.at(i)->setFlag(QGraphicsItem::ItemIsMovable, false);
+                } else if (selection.at(i)->parentItem() && !selection.contains(selection.at(i)->parentItem())) {
+                    if (static_cast<AbstractGroupItem *>(selection.at(i)->parentItem())->isItemLocked()) continue;
+                    //AbstractGroupItem *grp = static_cast<AbstractGroupItem *>(selection.at(i)->parentItem());
+                    m_selectionGroup->addToGroup(selection.at(i)->parentItem());
+                    selection.at(i)->parentItem()->setFlag(QGraphicsItem::ItemIsMovable, false);
                 }
             }
-
+            m_spacerOffset = m_selectionGroup->sceneBoundingRect().left() - (int)(mapToScene(m_clickEvent).x());
             if (!offsetList.isEmpty()) {
                 qSort(offsetList);
                 QList <GenTime> cleandOffsetList;
@@ -781,45 +867,49 @@ void CustomTrackView::mousePressEvent(QMouseEvent * event)
                 }
                 updateSnapPoints(NULL, cleandOffsetList, true);
             }
-            groupSelectedItems(true);
             m_operationMode = SPACER;
-        } else setCursorPos((int)(mapToScene(event->x(), 0).x()));
+        } else {
+            setCursorPos((int)(mapToScene(event->x(), 0).x()));
+        }
         QGraphicsView::mousePressEvent(event);
         return;
     }
 
     // Razor tool
     if (m_tool == RAZORTOOL && m_dragItem) {
+        GenTime cutPos = GenTime((int)(mapToScene(event->pos()).x()), m_document->fps());
         if (m_dragItem->type() == TRANSITIONWIDGET) {
             emit displayMessage(i18n("Cannot cut a transition"), ErrorMessage);
-            event->accept();
-            m_dragItem = NULL;
-            return;
-        } else if (m_dragItem->parentItem() && m_dragItem->parentItem() != m_selectionGroup) {
-            emit displayMessage(i18n("Cannot cut a clip in a group"), ErrorMessage);
-            event->accept();
-            m_dragItem = NULL;
-            return;
+        } else {
+            m_document->renderer()->pause();
+            if (m_dragItem->parentItem() && m_dragItem->parentItem() != m_selectionGroup) {
+                razorGroup((AbstractGroupItem *)m_dragItem->parentItem(), cutPos);
+            } else {
+                AbstractClipItem *clip = static_cast <AbstractClipItem *>(m_dragItem);
+                RazorClipCommand* command = new RazorClipCommand(this, clip->info(), cutPos);
+                m_commandStack->push(command);
+            }
+            setDocumentModified();
         }
-        AbstractClipItem *clip = static_cast <AbstractClipItem *>(m_dragItem);
-        RazorClipCommand* command = new RazorClipCommand(this, clip->info(), GenTime((int)(mapToScene(event->pos()).x()), m_document->fps()));
-        m_document->renderer()->pause();
-        m_commandStack->push(command);
-        setDocumentModified();
         m_dragItem = NULL;
         event->accept();
         return;
     }
 
     bool itemSelected = false;
-    if (m_dragItem->isSelected()) itemSelected = true;
-    else if (m_dragItem->parentItem() && m_dragItem->parentItem()->isSelected()) itemSelected = true;
-    else if (dragGroup && dragGroup->isSelected()) itemSelected = true;
+    if (m_dragItem->isSelected())
+        itemSelected = true;
+    else if (m_dragItem->parentItem() && m_dragItem->parentItem()->isSelected())
+        itemSelected = true;
+    else if (dragGroup && dragGroup->isSelected())
+        itemSelected = true;
 
     if (event->modifiers() == Qt::ControlModifier || itemSelected == false) {
         if (event->modifiers() != Qt::ControlModifier) {
-            m_scene->clearSelection();
             resetSelectionGroup(false);
+            m_scene->clearSelection();
+            // A refresh seems necessary otherwise in zoomed mode, some clips disappear
+            viewport()->update();
         } else resetSelectionGroup();
         dragGroup = NULL;
         if (m_dragItem->parentItem() && m_dragItem->parentItem()->type() == GROUPWIDGET) {
@@ -827,8 +917,10 @@ void CustomTrackView::mousePressEvent(QMouseEvent * event)
             dragGroup = static_cast <AbstractGroupItem *>(m_dragItem->parentItem());
         }
         bool selected = !m_dragItem->isSelected();
-        if (dragGroup) dragGroup->setSelected(selected);
-        else m_dragItem->setSelected(selected);
+        if (dragGroup)
+            dragGroup->setSelected(selected);
+        else
+            m_dragItem->setSelected(selected);
 
         groupSelectedItems();
         ClipItem *clip = static_cast <ClipItem *>(m_dragItem);
@@ -836,9 +928,28 @@ void CustomTrackView::mousePressEvent(QMouseEvent * event)
         m_pasteEffectsAction->setEnabled(m_copiedItems.count() == 1);
     }
 
+    if (collisionClip != NULL || m_dragItem == NULL) {
+        if (m_dragItem && m_dragItem->type() == AVWIDGET && !m_dragItem->isItemLocked()) {
+            ClipItem *selected = static_cast <ClipItem*>(m_dragItem);
+            emit clipItemSelected(selected);
+        } else {
+            emit clipItemSelected(NULL);
+        }
+    }
+
+    // If clicked item is selected, allow move
+    if (event->modifiers() != Qt::ControlModifier && m_operationMode == NONE) QGraphicsView::mousePressEvent(event);
+
+    m_clickPoint = QPoint((int)(mapToScene(event->pos()).x() - m_dragItem->startPos().frames(m_document->fps())), (int)(event->pos().y() - m_dragItem->pos().y()));
+    m_operationMode = m_dragItem->operationMode(mapToScene(event->pos()));
+
     // Update snap points
-    if (m_selectionGroup == NULL) updateSnapPoints(m_dragItem);
-    else {
+    if (m_selectionGroup == NULL) {
+        if (m_operationMode == RESIZEEND || m_operationMode == RESIZESTART)
+            updateSnapPoints(NULL);
+        else
+            updateSnapPoints(m_dragItem);
+    } else {
         QList <GenTime> offsetList;
         QList<QGraphicsItem *> children = m_selectionGroup->childItems();
         for (int i = 0; i < children.count(); i++) {
@@ -862,19 +973,6 @@ void CustomTrackView::mousePressEvent(QMouseEvent * event)
         }
     }
 
-    if (collisionClip != NULL || m_dragItem == NULL) {
-        if (m_dragItem && m_dragItem->type() == AVWIDGET && !m_dragItem->isItemLocked()) {
-            ClipItem *selected = static_cast <ClipItem*>(m_dragItem);
-            emit clipItemSelected(selected);
-        } else emit clipItemSelected(NULL);
-    }
-
-    // If clicked item is selected, allow move
-    if (event->modifiers() != Qt::ControlModifier && m_operationMode == NONE/* && (m_dragItem->isSelected() || (dragGroup && dragGroup->isSelected()))*/) QGraphicsView::mousePressEvent(event);
-
-    m_clickPoint = QPoint((int)(mapToScene(event->pos()).x() - m_dragItem->startPos().frames(m_document->fps())), (int)(event->pos().y() - m_dragItem->pos().y()));
-    m_operationMode = m_dragItem->operationMode(mapToScene(event->pos()));
-
     if (m_operationMode == KEYFRAME) {
         m_dragItem->updateSelectedKeyFrame();
         m_blockRefresh = false;
@@ -890,7 +988,13 @@ void CustomTrackView::mousePressEvent(QMouseEvent * event)
         if (transitiontrack != 0) transitionClip = getClipItemAt((int) info.startPos.frames(m_document->fps()), m_document->tracksCount() - transitiontrack);
         if (transitionClip && transitionClip->endPos() < m_dragItem->endPos()) {
             info.endPos = transitionClip->endPos();
-        } else info.endPos = info.startPos + GenTime(65, m_document->fps());
+        } else {
+            GenTime transitionDuration(65, m_document->fps());
+            if (m_dragItem->cropDuration() < transitionDuration)
+                info.endPos = m_dragItem->endPos();
+            else
+                info.endPos = info.startPos + transitionDuration;
+        }
         if (info.endPos == info.startPos) info.endPos = info.startPos + GenTime(65, m_document->fps());
         // Check there is no other transition at that place
         double startY = info.track * m_tracksHeight + 1 + m_tracksHeight / 2;
@@ -916,7 +1020,11 @@ void CustomTrackView::mousePressEvent(QMouseEvent * event)
         if (transitiontrack != 0) transitionClip = getClipItemAt((int) info.endPos.frames(m_document->fps()), m_document->tracksCount() - transitiontrack);
         if (transitionClip && transitionClip->startPos() > m_dragItem->startPos()) {
             info.startPos = transitionClip->startPos();
-        } else info.startPos = info.endPos - GenTime(65, m_document->fps());
+        } else {
+            GenTime transitionDuration(65, m_document->fps());
+            if (m_dragItem->cropDuration() < transitionDuration) info.startPos = m_dragItem->startPos();
+            else info.startPos = info.endPos - transitionDuration;
+        }
         if (info.endPos == info.startPos) info.startPos = info.endPos - GenTime(65, m_document->fps());
         QDomElement transition = MainWindow::transitions.getEffectByTag("luma", "dissolve").cloneNode().toElement();
         EffectsList::setParameter(transition, "reverse", "1");
@@ -944,7 +1052,34 @@ void CustomTrackView::mousePressEvent(QMouseEvent * event)
 
     m_blockRefresh = false;
     //kDebug()<<pos;
-    //QGraphicsView::mousePressEvent(event);
+    QGraphicsView::mousePressEvent(event);
+}
+
+void CustomTrackView::rebuildGroup(int childTrack, GenTime childPos)
+{
+    const QPointF p((int)childPos.frames(m_document->fps()), childTrack * m_tracksHeight + m_tracksHeight / 2);
+    QList<QGraphicsItem *> list = scene()->items(p);
+    AbstractGroupItem *group = NULL;
+    for (int i = 0; i < list.size(); i++) {
+        if (!list.at(i)->isEnabled()) continue;
+        if (list.at(i)->type() == GROUPWIDGET) {
+            group = static_cast <AbstractGroupItem *>(list.at(i));
+            break;
+        }
+    }
+    rebuildGroup(group);
+}
+
+void CustomTrackView::rebuildGroup(AbstractGroupItem *group)
+{
+    if (group) {
+        QList <QGraphicsItem *> children = group->childItems();
+        m_document->clipManager()->removeGroup(group);
+        scene()->destroyItemGroup(group);
+        for (int i = 0; i < children.count(); i++)
+            children.at(i)->setSelected(true);
+        groupSelectedItems(false, true);
+    }
 }
 
 void CustomTrackView::resetSelectionGroup(bool selectItems)
@@ -957,13 +1092,13 @@ void CustomTrackView::resetSelectionGroup(bool selectItems)
         QList<QGraphicsItem *> children = m_selectionGroup->childItems();
         scene()->destroyItemGroup(m_selectionGroup);
         for (int i = 0; i < children.count(); i++) {
-            if (children.at(i)->type() == AVWIDGET || children.at(i)->type() == TRANSITIONWIDGET) {
+            if (children.at(i)->parentItem() == 0 && (children.at(i)->type() == AVWIDGET || children.at(i)->type() == TRANSITIONWIDGET)) {
                 if (!static_cast <AbstractClipItem *>(children.at(i))->isItemLocked()) {
-                    children.at(i)->setFlags(QGraphicsItem::ItemIsMovable | QGraphicsItem::ItemIsSelectable);
+                    children.at(i)->setFlag(QGraphicsItem::ItemIsMovable, true);
                     children.at(i)->setSelected(selectItems);
                 }
             } else if (children.at(i)->type() == GROUPWIDGET) {
-                children.at(i)->setFlags(QGraphicsItem::ItemIsMovable | QGraphicsItem::ItemIsSelectable);
+                children.at(i)->setFlag(QGraphicsItem::ItemIsMovable, true);
                 children.at(i)->setSelected(selectItems);
             }
         }
@@ -980,13 +1115,13 @@ void CustomTrackView::groupSelectedItems(bool force, bool createNewGroup)
     }
     QList<QGraphicsItem *> selection = m_scene->selectedItems();
     if (selection.isEmpty()) return;
-    QPointF top = selection.at(0)->sceneBoundingRect().topLeft();
+    QRectF rectUnion;
     // Find top left position of selection
-    for (int i = 1; i < selection.count(); i++) {
-        if (selection.at(i)->type() == AVWIDGET || selection.at(i)->type() == TRANSITIONWIDGET || selection.at(i)->type() == GROUPWIDGET) {
-            QPointF currenttop = selection.at(i)->sceneBoundingRect().topLeft();
-            if (currenttop.x() < top.x()) top.setX(currenttop.x());
-            if (currenttop.y() < top.y()) top.setY(currenttop.y());
+    for (int i = 0; i < selection.count(); i++) {
+        if (selection.at(i)->parentItem() == 0 && (selection.at(i)->type() == AVWIDGET || selection.at(i)->type() == TRANSITIONWIDGET || selection.at(i)->type() == GROUPWIDGET)) {
+            rectUnion = rectUnion.united(selection.at(i)->sceneBoundingRect());
+        } else if (selection.at(i)->parentItem()) {
+            rectUnion = rectUnion.united(selection.at(i)->parentItem()->sceneBoundingRect());
         }
     }
 
@@ -995,16 +1130,20 @@ void CustomTrackView::groupSelectedItems(bool force, bool createNewGroup)
         KdenliveSettings::setSnaptopoints(false);
         if (createNewGroup) {
             AbstractGroupItem *newGroup = m_document->clipManager()->createGroup();
-            newGroup->translate(-top.x(), -top.y() + 1);
-            newGroup->setPos(top.x(), top.y() - 1);
+            newGroup->setPos(rectUnion.left(), rectUnion.top() - 1);
+            QPointF diff = newGroup->pos();
+            newGroup->translate(-diff.x(), -diff.y());
+            //newGroup->translate((int) -rectUnion.left(), (int) -rectUnion.top() + 1);
+
             scene()->addItem(newGroup);
 
-            // CHeck if we are trying to include a group in a group
+            // Check if we are trying to include a group in a group
             QList <AbstractGroupItem *> groups;
             for (int i = 0; i < selection.count(); i++) {
-                if (selection.at(i)->type() == GROUPWIDGET && !groups.contains(static_cast<AbstractGroupItem *>(selection.at(i)))) {
+                if (selection.at(i)->type() == GROUPWIDGET && !groups.contains(static_cast<AbstractGroupItem *>(selection.at(i))))
                     groups.append(static_cast<AbstractGroupItem *>(selection.at(i)));
-                } else if (selection.at(i)->parentItem() && !groups.contains(static_cast<AbstractGroupItem *>(selection.at(i)->parentItem()))) groups.append(static_cast<AbstractGroupItem *>(selection.at(i)->parentItem()));
+                else if (selection.at(i)->parentItem() && !groups.contains(static_cast<AbstractGroupItem *>(selection.at(i)->parentItem())))
+                    groups.append(static_cast<AbstractGroupItem *>(selection.at(i)->parentItem()));
             }
             if (!groups.isEmpty()) {
                 // ungroup previous groups
@@ -1019,19 +1158,22 @@ void CustomTrackView::groupSelectedItems(bool force, bool createNewGroup)
             for (int i = 0; i < selection.count(); i++) {
                 if (selection.at(i)->type() == AVWIDGET || selection.at(i)->type() == TRANSITIONWIDGET) {
                     newGroup->addToGroup(selection.at(i));
-                    selection.at(i)->setFlags(QGraphicsItem::ItemIsSelectable);
+                    selection.at(i)->setFlag(QGraphicsItem::ItemIsMovable, false);
                 }
             }
             KdenliveSettings::setSnaptopoints(snap);
         } else {
             m_selectionGroup = new AbstractGroupItem(m_document->fps());
-            m_selectionGroup->translate(-top.x(), -top.y() + 1);
-            m_selectionGroup->setPos(top.x(), top.y() - 1);
+            m_selectionGroup->setPos(rectUnion.left(), rectUnion.top() - 1);
+            QPointF diff = m_selectionGroup->pos();
+            //m_selectionGroup->translate((int) - rectUnion.left(), (int) -rectUnion.top() + 1);
+            m_selectionGroup->translate(- diff.x(), -diff.y());
+
             scene()->addItem(m_selectionGroup);
             for (int i = 0; i < selection.count(); i++) {
-                if (selection.at(i)->parentItem() == NULL && (selection.at(i)->type() == AVWIDGET || selection.at(i)->type() == TRANSITIONWIDGET || selection.at(i)->type() == GROUPWIDGET)) {
+                if (selection.at(i)->parentItem() == 0 && (selection.at(i)->type() == AVWIDGET || selection.at(i)->type() == TRANSITIONWIDGET || selection.at(i)->type() == GROUPWIDGET)) {
                     m_selectionGroup->addToGroup(selection.at(i));
-                    selection.at(i)->setFlags(QGraphicsItem::ItemIsSelectable);
+                    selection.at(i)->setFlag(QGraphicsItem::ItemIsMovable, false);
                 }
             }
             KdenliveSettings::setSnaptopoints(snap);
@@ -1046,8 +1188,9 @@ void CustomTrackView::groupSelectedItems(bool force, bool createNewGroup)
 void CustomTrackView::mouseDoubleClickEvent(QMouseEvent *event)
 {
     if (m_dragItem && m_dragItem->hasKeyFrames()) {
-        if (m_moveOpMode == KEYFRAME) {
+        /*if (m_moveOpMode == KEYFRAME) {
             // user double clicked on a keyframe, open edit dialog
+            //TODO: update for effects with several values per keyframe
             QDialog d(parentWidget());
             Ui::KeyFrameDialog_UI view;
             view.setupUi(&d);
@@ -1067,88 +1210,118 @@ void CustomTrackView::mouseDoubleClickEvent(QMouseEvent *event)
                 emit clipItemSelected(item, item->selectedEffectIndex());
             }
 
-        } else  {
+        } else*/  {
             // add keyframe
             GenTime keyFramePos = GenTime((int)(mapToScene(event->pos()).x()), m_document->fps()) - m_dragItem->startPos() + m_dragItem->cropStart();
-            m_dragItem->addKeyFrame(keyFramePos, mapToScene(event->pos()).toPoint().y());
+            int val = m_dragItem->addKeyFrame(keyFramePos, mapToScene(event->pos()).toPoint().y());
             ClipItem * item = static_cast <ClipItem *>(m_dragItem);
-            QString previous = item->keyframes(item->selectedEffectIndex());
-            item->updateKeyframeEffect();
-            QString next = item->keyframes(item->selectedEffectIndex());
-            EditKeyFrameCommand *command = new EditKeyFrameCommand(this, m_dragItem->track(), m_dragItem->startPos(), item->selectedEffectIndex(), previous, next, false);
+            //QString previous = item->keyframes(item->selectedEffectIndex());
+            QDomElement oldEffect = item->selectedEffect().cloneNode().toElement();
+            item->insertKeyframe(item->getEffectAt(item->selectedEffectIndex()), keyFramePos.frames(m_document->fps()), val);
+            //item->updateKeyframeEffect();
+            //QString next = item->keyframes(item->selectedEffectIndex());
+            QDomElement newEffect = item->selectedEffect().cloneNode().toElement();
+            EditEffectCommand *command = new EditEffectCommand(this, m_document->tracksCount() - item->track(), item->startPos(), oldEffect, newEffect, item->selectedEffectIndex(), false);
+            //EditKeyFrameCommand *command = new EditKeyFrameCommand(this, m_dragItem->track(), m_dragItem->startPos(), item->selectedEffectIndex(), previous, next, false);
             m_commandStack->push(command);
             updateEffect(m_document->tracksCount() - item->track(), item->startPos(), item->selectedEffect(), item->selectedEffectIndex());
             emit clipItemSelected(item, item->selectedEffectIndex());
         }
     } else if (m_dragItem && !m_dragItem->isItemLocked()) {
-        ClipDurationDialog d(m_dragItem, m_document->timecode(), this);
-        GenTime minimum;
-        GenTime maximum;
-        if (m_dragItem->type() == TRANSITIONWIDGET) {
-            getTransitionAvailableSpace(m_dragItem, minimum, maximum);
+        editItemDuration();
+    } else {
+        QList<QGraphicsItem *> collisionList = items(event->pos());
+        if (collisionList.count() == 1 && collisionList.at(0)->type() == GUIDEITEM) {
+            Guide *editGuide = (Guide *) collisionList.at(0);
+            if (editGuide) slotEditGuide(editGuide->info());
+        }
+    }
+}
+
+void CustomTrackView::editItemDuration()
+{
+    AbstractClipItem *item;
+    if (m_dragItem) {
+        item = m_dragItem;
+    } else {
+        if (m_scene->selectedItems().count() == 1) {
+            item = static_cast <AbstractClipItem *>(m_scene->selectedItems().at(0));
         } else {
-            getClipAvailableSpace(m_dragItem, minimum, maximum);
+            if (m_scene->selectedItems().empty())
+                emit displayMessage(i18n("Cannot find clip to edit"), ErrorMessage);
+            else
+                emit displayMessage(i18n("Cannot edit the duration of multiple items"), ErrorMessage);
+            return;
         }
-        //kDebug()<<"// GOT MOVE POS: "<<minimum.frames(25)<<" - "<<maximum.frames(25);
-        d.setMargins(minimum, maximum);
+    }
+
+    if (!item) {
+        emit displayMessage(i18n("Cannot find clip to edit"), ErrorMessage);
+        return;
+    }
+
+    if (item->type() == GROUPWIDGET || (item->parentItem() && item->parentItem()->type() == GROUPWIDGET)) {
+        emit displayMessage(i18n("Cannot edit an item in a group"), ErrorMessage);
+        return;
+    }
+
+    if (!item->isItemLocked()) {
+        GenTime minimum;
+        GenTime maximum;
+        if (item->type() == TRANSITIONWIDGET)
+            getTransitionAvailableSpace(item, minimum, maximum);
+        else
+            getClipAvailableSpace(item, minimum, maximum);
+
+        ClipDurationDialog d(item, m_document->timecode(), minimum, maximum, this);
         if (d.exec() == QDialog::Accepted) {
-            if (m_dragItem->type() == TRANSITIONWIDGET) {
+            ItemInfo clipInfo = item->info();
+            ItemInfo startInfo = clipInfo;
+            if (item->type() == TRANSITIONWIDGET) {
                 // move & resize transition
-                ItemInfo startInfo;
-                startInfo.startPos = m_dragItem->startPos();
-                startInfo.endPos = m_dragItem->endPos();
-                startInfo.track = m_dragItem->track();
-                ItemInfo endInfo;
-                endInfo.startPos = d.startPos();
-                endInfo.endPos = endInfo.startPos + d.duration();
-                endInfo.track = m_dragItem->track();
-                MoveTransitionCommand *command = new MoveTransitionCommand(this, startInfo, endInfo, true);
+                clipInfo.startPos = d.startPos();
+                clipInfo.endPos = clipInfo.startPos + d.duration();
+                clipInfo.track = item->track();
+                MoveTransitionCommand *command = new MoveTransitionCommand(this, startInfo, clipInfo, true);
                 m_commandStack->push(command);
             } else {
                 // move and resize clip
                 QUndoCommand *moveCommand = new QUndoCommand();
                 moveCommand->setText(i18n("Edit clip"));
-                ItemInfo clipInfo = m_dragItem->info();
-                if (d.duration() < m_dragItem->cropDuration() || d.cropStart() != clipInfo.cropStart) {
+                if (d.duration() < item->cropDuration() || d.cropStart() != clipInfo.cropStart) {
                     // duration was reduced, so process it first
-                    ItemInfo startInfo = clipInfo;
                     clipInfo.endPos = clipInfo.startPos + d.duration();
                     clipInfo.cropStart = d.cropStart();
-                    new ResizeClipCommand(this, startInfo, clipInfo, true, moveCommand);
+                    new ResizeClipCommand(this, startInfo, clipInfo, true, false, moveCommand);
                 }
                 if (d.startPos() != clipInfo.startPos) {
-                    ItemInfo startInfo = clipInfo;
+                    startInfo = clipInfo;
                     clipInfo.startPos = d.startPos();
-                    clipInfo.endPos = m_dragItem->endPos() + (clipInfo.startPos - startInfo.startPos);
+                    clipInfo.endPos = item->endPos() + (clipInfo.startPos - startInfo.startPos);
                     new MoveClipCommand(this, startInfo, clipInfo, true, moveCommand);
                 }
-                if (d.duration() > m_dragItem->cropDuration()) {
+                if (d.duration() > item->cropDuration()) {
                     // duration was increased, so process it after move
-                    ItemInfo startInfo = clipInfo;
+                    startInfo = clipInfo;
                     clipInfo.endPos = clipInfo.startPos + d.duration();
                     clipInfo.cropStart = d.cropStart();
-                    new ResizeClipCommand(this, startInfo, clipInfo, true, moveCommand);
+                    new ResizeClipCommand(this, startInfo, clipInfo, true, false, moveCommand);
                 }
                 m_commandStack->push(moveCommand);
             }
         }
     } else {
-        QList<QGraphicsItem *> collisionList = items(event->pos());
-        if (collisionList.count() == 1 && collisionList.at(0)->type() == GUIDEITEM) {
-            Guide *editGuide = (Guide *) collisionList.at(0);
-            if (editGuide) slotEditGuide(editGuide->info());
-        }
+        emit displayMessage(i18n("Item is locked"), ErrorMessage);
     }
 }
 
-
-void CustomTrackView::editKeyFrame(const GenTime pos, const int track, const int index, const QString keyframes)
+void CustomTrackView::editKeyFrame(const GenTime /*pos*/, const int /*track*/, const int /*index*/, const QString /*keyframes*/)
 {
-    ClipItem *clip = getClipItemAt((int)pos.frames(m_document->fps()), track);
+    /*ClipItem *clip = getClipItemAt((int)pos.frames(m_document->fps()), track);
     if (clip) {
         clip->setKeyframes(index, keyframes);
-        updateEffect(m_document->tracksCount() - clip->track(), clip->startPos(), clip->effectAt(index), index);
-    } else emit displayMessage(i18n("Cannot find clip with keyframe"), ErrorMessage);
+        updateEffect(m_document->tracksCount() - clip->track(), clip->startPos(), clip->effectAt(index), index, false);
+    } else emit displayMessage(i18n("Cannot find clip with keyframe"), ErrorMessage);*/
 }
 
 
@@ -1156,8 +1329,11 @@ void CustomTrackView::displayContextMenu(QPoint pos, AbstractClipItem *clip, Abs
 {
     m_deleteGuide->setEnabled(m_dragGuide != NULL);
     m_editGuide->setEnabled(m_dragGuide != NULL);
-    if (clip == NULL) m_timelineContextMenu->popup(pos);
-    else if (group != NULL) {
+    m_markerMenu->clear();
+    m_markerMenu->setEnabled(false);
+    if (clip == NULL) {
+        m_timelineContextMenu->popup(pos);
+    } else if (group != NULL) {
         m_pasteEffectsAction->setEnabled(m_copiedItems.count() == 1);
         m_ungroupAction->setEnabled(true);
         updateClipTypeActions(NULL);
@@ -1166,10 +1342,26 @@ void CustomTrackView::displayContextMenu(QPoint pos, AbstractClipItem *clip, Abs
         m_ungroupAction->setEnabled(false);
         if (clip->type() == AVWIDGET) {
             ClipItem *item = static_cast <ClipItem*>(clip);
+            //build go to marker menu
+            if (item->baseClip()) {
+                QList <CommentedTime> markers = item->baseClip()->commentedSnapMarkers();
+                int offset = item->startPos().frames(m_document->fps());
+                if (!markers.isEmpty()) {
+                    for (int i = 0; i < markers.count(); i++) {
+                        int pos = (int) markers.at(i).time().frames(m_document->timecode().fps());
+                        QString position = m_document->timecode().getTimecode(markers.at(i).time()) + ' ' + markers.at(i).comment();
+                        QAction *go = m_markerMenu->addAction(position);
+                        go->setData(pos + offset);
+                    }
+                }
+                m_markerMenu->setEnabled(!m_markerMenu->isEmpty());
+            }
             updateClipTypeActions(item);
             m_pasteEffectsAction->setEnabled(m_copiedItems.count() == 1);
             m_timelineContextClipMenu->popup(pos);
-        } else if (clip->type() == TRANSITIONWIDGET) m_timelineContextTransitionMenu->popup(pos);
+        } else if (clip->type() == TRANSITIONWIDGET) {
+            m_timelineContextTransitionMenu->popup(pos);
+        }
     }
 }
 
@@ -1178,108 +1370,149 @@ void CustomTrackView::activateMonitor()
     emit activateDocumentMonitor();
 }
 
-void CustomTrackView::dragEnterEvent(QDragEnterEvent * event)
+void CustomTrackView::insertClipCut(DocClipBase *clip, int in, int out)
 {
-    if (event->mimeData()->hasFormat("kdenlive/clip")) {
+    resetSelectionGroup();
+    ItemInfo info;
+    info.startPos = GenTime();
+    info.cropStart = GenTime(in, m_document->fps());
+    info.endPos = GenTime(out - in, m_document->fps());
+    info.cropDuration = info.endPos - info.startPos;
+    info.track = 0;
+
+    // Check if clip can be inserted at that position
+    ItemInfo pasteInfo = info;
+    pasteInfo.startPos = GenTime(m_cursorPos, m_document->fps());
+    pasteInfo.endPos = pasteInfo.startPos + info.endPos;
+    pasteInfo.track = selectedTrack();
+    if (!canBePastedTo(pasteInfo, AVWIDGET)) {
+        emit displayMessage(i18n("Cannot insert clip in timeline"), ErrorMessage);
+        return;
+    }
+
+    AddTimelineClipCommand *command = new AddTimelineClipCommand(this, clip->toXML(), clip->getId(), pasteInfo, EffectsList(), m_scene->editMode() == OVERWRITEEDIT, m_scene->editMode() == INSERTEDIT, true, false);
+    m_commandStack->push(command);
+
+    selectClip(true, false);
+    // Automatic audio split
+    if (KdenliveSettings::splitaudio())
+        splitAudio();
+}
+
+bool CustomTrackView::insertDropClips(const QMimeData *data, const QPoint pos)
+{
+    if (data->hasFormat("kdenlive/clip")) {
         m_clipDrag = true;
-        resetSelectionGroup();
-        QStringList list = QString(event->mimeData()->data("kdenlive/clip")).split(';');
-        m_selectionGroup = new AbstractGroupItem(m_document->fps());
-        QPoint pos;
+        m_scene->clearSelection();
+        resetSelectionGroup(false);
+        QStringList list = QString(data->data("kdenlive/clip")).split(';');
         DocClipBase *clip = m_document->getBaseClip(list.at(0));
         if (clip == NULL) {
             kDebug() << " WARNING))))))))) CLIP NOT FOUND : " << list.at(0);
-            return;
+            return false;
         }
+        QPointF framePos = mapToScene(pos);
         ItemInfo info;
         info.startPos = GenTime();
         info.cropStart = GenTime(list.at(1).toInt(), m_document->fps());
         info.endPos = GenTime(list.at(2).toInt() - list.at(1).toInt(), m_document->fps());
-        info.track = (int)(1 / m_tracksHeight);
+        info.cropDuration = info.endPos - info.startPos;
+        info.track = 0;
+
+        // Check if clip can be inserted at that position
+        ItemInfo pasteInfo = info;
+        pasteInfo.startPos = GenTime((int)(framePos.x() + 0.5), m_document->fps());
+        pasteInfo.endPos = pasteInfo.startPos + info.endPos;
+        pasteInfo.track = (int)(framePos.y() / m_tracksHeight);
+        framePos.setX((int)(framePos.x() + 0.5));
+        framePos.setY(pasteInfo.track * m_tracksHeight);
+        if (!canBePastedTo(pasteInfo, AVWIDGET)) {
+            return true;
+        }
+        m_selectionGroup = new AbstractGroupItem(m_document->fps());
         ClipItem *item = new ClipItem(clip, info, m_document->fps(), 1.0, 1);
         m_selectionGroup->addToGroup(item);
-        item->setFlags(QGraphicsItem::ItemIsSelectable);
-        //TODO: check if we do not overlap another clip when first dropping in timeline
-        // if (insertPossible(m_selectionGroup, event->pos()))
+        item->setFlag(QGraphicsItem::ItemIsMovable, false);
+
         QList <GenTime> offsetList;
         offsetList.append(info.endPos);
         updateSnapPoints(NULL, offsetList);
+        m_selectionGroup->setPos(framePos);
         scene()->addItem(m_selectionGroup);
-        event->acceptProposedAction();
-    } else if (event->mimeData()->hasFormat("kdenlive/producerslist")) {
+        m_selectionGroup->setSelected(true);
+        return true;
+    } else if (data->hasFormat("kdenlive/producerslist")) {
         m_clipDrag = true;
-        QStringList ids = QString(event->mimeData()->data("kdenlive/producerslist")).split(';');
+        QStringList ids = QString(data->data("kdenlive/producerslist")).split(';');
         m_scene->clearSelection();
         resetSelectionGroup(false);
 
-        m_selectionGroup = new AbstractGroupItem(m_document->fps());
-        QPoint pos;
-        GenTime start;
         QList <GenTime> offsetList;
+        QList <ItemInfo> infoList;
+        QPointF framePos = mapToScene(pos);
+        GenTime start = GenTime((int)(framePos.x() + 0.5), m_document->fps());
+        int track = (int)(framePos.y() / m_tracksHeight);
+        framePos.setX((int)(framePos.x() + 0.5));
+        framePos.setY(track * m_tracksHeight);
+
+        // Check if clips can be inserted at that position
         for (int i = 0; i < ids.size(); ++i) {
             DocClipBase *clip = m_document->getBaseClip(ids.at(i));
             if (clip == NULL) {
                 kDebug() << " WARNING))))))))) CLIP NOT FOUND : " << ids.at(i);
-                return;
+                return false;
             }
             ItemInfo info;
             info.startPos = start;
-            info.endPos = info.startPos + clip->duration();
-            info.track = (int)(1 / m_tracksHeight);
-            ClipItem *item = new ClipItem(clip, info, m_document->fps(), 1.0, 1, false);
+            info.cropDuration = clip->duration();
+            info.endPos = info.startPos + info.cropDuration;
+            info.track = track;
+            infoList.append(info);
             start += clip->duration();
+        }
+        if (!canBePastedTo(infoList, AVWIDGET)) {
+            return true;
+        }
+        m_selectionGroup = new AbstractGroupItem(m_document->fps());
+        start = GenTime();
+        for (int i = 0; i < ids.size(); ++i) {
+            DocClipBase *clip = m_document->getBaseClip(ids.at(i));
+            ItemInfo info;
+            info.startPos = start;
+            info.cropDuration = clip->duration();
+            info.endPos = info.startPos + info.cropDuration;
+            info.track = 0;
+            start += info.cropDuration;
             offsetList.append(start);
+            ClipItem *item = new ClipItem(clip, info, m_document->fps(), 1.0, 1, false);
+            item->setFlag(QGraphicsItem::ItemIsMovable, false);
             m_selectionGroup->addToGroup(item);
-            item->setFlags(QGraphicsItem::ItemIsSelectable);
-            m_waitingThumbs.append(item);
+            if (!clip->isPlaceHolder()) m_waitingThumbs.append(item);
         }
-        //TODO: check if we do not overlap another clip when first dropping in timeline
-        //if (insertPossible(m_selectionGroup, event->pos()))
+
         updateSnapPoints(NULL, offsetList);
+        m_selectionGroup->setPos(framePos);
         scene()->addItem(m_selectionGroup);
+        //m_selectionGroup->setZValue(10);
         m_thumbsTimer.start();
-        event->acceptProposedAction();
+        return true;
 
     } else {
         // the drag is not a clip (may be effect, ...)
         m_clipDrag = false;
-        QGraphicsView::dragEnterEvent(event);
+        return false;
     }
 }
 
 
-bool CustomTrackView::insertPossible(AbstractGroupItem *group, const QPoint &pos) const
-{
-    QPolygonF path;
-    QList<QGraphicsItem *> children = group->childItems();
-    for (int i = 0; i < children.count(); i++) {
-        if (children.at(i)->type() == AVWIDGET) {
-            ClipItem *clip = static_cast <ClipItem *>(children.at(i));
-            ItemInfo info = clip->info();
-            kDebug() << " / / INSERT : " << pos.x();
-            QRectF shape = QRectF(clip->startPos().frames(m_document->fps()), clip->track() * m_tracksHeight + 1, clip->cropDuration().frames(m_document->fps()) - 0.02, m_tracksHeight - 1);
-            kDebug() << " / / INSERT RECT: " << shape;
-            path = path.united(QPolygonF(shape));
-        }
-    }
-
-    QList<QGraphicsItem*> collindingItems = scene()->items(path, Qt::IntersectsItemShape);
-    if (collindingItems.isEmpty()) return true;
-    else {
-        for (int i = 0; i < collindingItems.count(); i++) {
-            QGraphicsItem *collision = collindingItems.at(i);
-            if (collision->type() == AVWIDGET) {
-                // Collision
-                kDebug() << "// COLLISIION DETECTED";
-                return false;
-            }
-        }
-        return true;
-    }
 
+void CustomTrackView::dragEnterEvent(QDragEnterEvent * event)
+{
+    if (insertDropClips(event->mimeData(), event->pos())) {
+        event->acceptProposedAction();
+    } else QGraphicsView::dragEnterEvent(event);
 }
 
-
 bool CustomTrackView::itemCollision(AbstractClipItem *item, ItemInfo newPos)
 {
     QRectF shape = QRectF(newPos.startPos.frames(m_document->fps()), newPos.track * m_tracksHeight + 1, (newPos.endPos - newPos.startPos).frames(m_document->fps()) - 0.02, m_tracksHeight - 1);
@@ -1317,7 +1550,7 @@ void CustomTrackView::slotRefreshEffects(ClipItem *clip)
 
 void CustomTrackView::addEffect(int track, GenTime pos, QDomElement effect)
 {
-    ClipItem *clip = getClipItemAt((int)pos.frames(m_document->fps()) + 1, m_document->tracksCount() - track);
+    ClipItem *clip = getClipItemAt((int)pos.frames(m_document->fps()), m_document->tracksCount() - track);
     if (clip) {
         // Special case: speed effect
         if (effect.attribute("id") == "speed") {
@@ -1325,16 +1558,15 @@ void CustomTrackView::addEffect(int track, GenTime pos, QDomElement effect)
                 emit displayMessage(i18n("Problem adding effect to clip"), ErrorMessage);
                 return;
             }
-            ItemInfo info = clip->info();
             double speed = EffectsList::parameter(effect, "speed").toDouble() / 100.0;
             int strobe = EffectsList::parameter(effect, "strobe").toInt();
             if (strobe == 0) strobe = 1;
-            doChangeClipSpeed(info, speed, 1.0, strobe, clip->baseClip()->getId());
-            clip->addEffect(effect);
+            doChangeClipSpeed(clip->info(), clip->speedIndependantInfo(), speed, 1.0, strobe, clip->baseClip()->getId());
+            EffectsParameterList params = clip->addEffect(effect);
+            m_document->renderer()->mltAddEffect(track, pos, params);
             if (clip->isSelected()) emit clipItemSelected(clip);
             return;
         }
-
         EffectsParameterList params = clip->addEffect(effect);
         if (!m_document->renderer()->mltAddEffect(track, pos, params))
             emit displayMessage(i18n("Problem adding effect to clip"), ErrorMessage);
@@ -1347,21 +1579,21 @@ void CustomTrackView::deleteEffect(int track, GenTime pos, QDomElement effect)
     QString index = effect.attribute("kdenlive_ix");
     // Special case: speed effect
     if (effect.attribute("id") == "speed") {
-        ClipItem *clip = getClipItemAt((int)pos.frames(m_document->fps()) + 1, m_document->tracksCount() - track);
+        ClipItem *clip = getClipItemAt((int)pos.frames(m_document->fps()), m_document->tracksCount() - track);
         if (clip) {
-            ItemInfo info = clip->info();
-            doChangeClipSpeed(info, 1.0, clip->speed(), 1, clip->baseClip()->getId());
+            doChangeClipSpeed(clip->info(), clip->speedIndependantInfo(), 1.0, clip->speed(), 1, clip->baseClip()->getId());
             clip->deleteEffect(index);
             emit clipItemSelected(clip);
+            m_document->renderer()->mltRemoveEffect(track, pos, index, true);
             return;
         }
     }
-    if (!m_document->renderer()->mltRemoveEffect(track, pos, index, true) && effect.attribute("disabled") != "1") {
-        kDebug() << "// ERROR REMOV EFFECT: " << index << ", DISABLE: " << effect.attribute("disabled");
+    if (!m_document->renderer()->mltRemoveEffect(track, pos, index, true)) {
+        kDebug() << "// ERROR REMOV EFFECT: " << index << ", DISABLE: " << effect.attribute("disable");
         emit displayMessage(i18n("Problem deleting effect"), ErrorMessage);
         return;
     }
-    ClipItem *clip = getClipItemAt((int)pos.frames(m_document->fps()) + 1, m_document->tracksCount() - track);
+    ClipItem *clip = getClipItemAt((int)pos.frames(m_document->fps()), m_document->tracksCount() - track);
     if (clip) {
         clip->deleteEffect(index);
         emit clipItemSelected(clip);
@@ -1389,7 +1621,7 @@ void CustomTrackView::slotAddGroupEffect(QDomElement effect, AbstractGroupItem *
                 if (item->isAudioOnly() || item->clipType() == AUDIO) continue;
             }
 
-            if (item->hasEffect(effect.attribute("tag"), effect.attribute("id")) != -1 && effect.attribute("unique", "0") != "0") {
+            if (effect.attribute("unique", "0") != "0" && item->hasEffect(effect.attribute("tag"), effect.attribute("id")) != -1) {
                 emit displayMessage(i18n("Effect already present in clip"), ErrorMessage);
                 continue;
             }
@@ -1421,14 +1653,24 @@ void CustomTrackView::slotAddEffect(QDomElement effect, GenTime pos, int track)
     if (!namenode.isNull()) effectName = i18n(namenode.toElement().text().toUtf8().data());
     else effectName = i18n("effect");
     effectCommand->setText(i18n("Add %1", effectName));
-    int count = 0;
+
     if (track == -1) itemList = scene()->selectedItems();
     if (itemList.isEmpty()) {
         ClipItem *clip = getClipItemAt((int) pos.frames(m_document->fps()), track);
         if (clip) itemList.append(clip);
         else emit displayMessage(i18n("Select a clip if you want to apply an effect"), ErrorMessage);
     }
-    kDebug() << "// REQUESTING EFFECT ON CLIP: " << pos.frames(25) << ", TRK: " << track << "SELECTED ITEMS: " << itemList.count();
+
+    //expand groups
+    for (int i = 0; i < itemList.count(); i++) {
+        if (itemList.at(i)->type() == GROUPWIDGET) {
+            QList<QGraphicsItem *> subitems = itemList.at(i)->childItems();
+            for (int j = 0; j < subitems.count(); j++) {
+                if (!itemList.contains(subitems.at(j))) itemList.append(subitems.at(j));
+            }
+        }
+    }
+
     for (int i = 0; i < itemList.count(); i++) {
         if (itemList.at(i)->type() == AVWIDGET) {
             ClipItem *item = static_cast <ClipItem *>(itemList.at(i));
@@ -1452,44 +1694,86 @@ void CustomTrackView::slotAddEffect(QDomElement effect, GenTime pos, int track)
             if (item->isItemLocked()) {
                 continue;
             }
-            item->initEffect(effect);
+            if (effect.attribute("id") == "freeze" && m_cursorPos > item->startPos().frames(m_document->fps()) && m_cursorPos < item->endPos().frames(m_document->fps())) {
+                item->initEffect(effect, m_cursorPos - item->startPos().frames(m_document->fps()));
+            } else item->initEffect(effect);
             if (effect.attribute("tag") == "ladspa") {
                 QString ladpsaFile = m_document->getLadspaFile();
                 initEffects::ladspaEffectFile(ladpsaFile, effect.attribute("ladspaid").toInt(), getLadspaParams(effect));
                 effect.setAttribute("src", ladpsaFile);
             }
             new AddEffectCommand(this, m_document->tracksCount() - item->track(), item->startPos(), effect, true, effectCommand);
-            count++;
         }
     }
-    if (count > 0) {
+    if (effectCommand->childCount() > 0) {
         m_commandStack->push(effectCommand);
         setDocumentModified();
     } else delete effectCommand;
 }
 
-void CustomTrackView::slotDeleteEffect(ClipItem *clip, QDomElement effect)
+void CustomTrackView::slotDeleteEffect(ClipItem *clip, QDomElement effect, bool affectGroup)
 {
+    if (affectGroup && clip->parentItem() && clip->parentItem() == m_selectionGroup) {
+        //clip is in a group, also remove the effect in other clips of the group
+        QList<QGraphicsItem *> items = m_selectionGroup->childItems();
+        QUndoCommand *delCommand = new QUndoCommand();
+        QString effectName;
+        QDomNode namenode = effect.elementsByTagName("name").item(0);
+        if (!namenode.isNull()) effectName = i18n(namenode.toElement().text().toUtf8().data());
+        else effectName = i18n("effect");
+        delCommand->setText(i18n("Delete %1", effectName));
+
+        //expand groups
+        for (int i = 0; i < items.count(); i++) {
+            if (items.at(i)->type() == GROUPWIDGET) {
+                QList<QGraphicsItem *> subitems = items.at(i)->childItems();
+                for (int j = 0; j < subitems.count(); j++) {
+                    if (!items.contains(subitems.at(j))) items.append(subitems.at(j));
+                }
+            }
+        }
+
+        for (int i = 0; i < items.count(); i++) {
+            if (items.at(i)->type() == AVWIDGET) {
+                ClipItem *item = static_cast <ClipItem *>(items.at(i));
+                int ix = item->hasEffect(effect.attribute("tag"), effect.attribute("id"));
+                if (ix != -1) {
+                    QDomElement eff = item->effectAt(ix);
+                    new AddEffectCommand(this, m_document->tracksCount() - item->track(), item->startPos(), eff, false, delCommand);
+                }
+            }
+        }
+        if (delCommand->childCount() > 0) m_commandStack->push(delCommand);
+        else delete delCommand;
+        return;
+    }
     AddEffectCommand *command = new AddEffectCommand(this, m_document->tracksCount() - clip->track(), clip->startPos(), effect, false);
     m_commandStack->push(command);
     setDocumentModified();
 }
 
-void CustomTrackView::updateEffect(int track, GenTime pos, QDomElement effect, int ix, bool triggeredByUser)
+void CustomTrackView::updateEffect(int track, GenTime pos, QDomElement insertedEffect, int ix, bool triggeredByUser)
 {
-    ClipItem *clip = getClipItemAt((int)pos.frames(m_document->fps()) + 1, m_document->tracksCount() - track);
+    if (insertedEffect.isNull()) {
+        emit displayMessage(i18n("Problem editing effect"), ErrorMessage);
+        return;
+    }
+    ClipItem *clip = getClipItemAt((int)pos.frames(m_document->fps()), m_document->tracksCount() - track);
+    QDomElement effect = insertedEffect.cloneNode().toElement();
     if (clip) {
-
         // Special case: speed effect
         if (effect.attribute("id") == "speed") {
-            ItemInfo info = clip->info();
-            double speed = EffectsList::parameter(effect, "speed").toDouble() / 100.0;
-            int strobe = EffectsList::parameter(effect, "strobe").toInt();
-            if (strobe == 0) strobe = 1;
-            doChangeClipSpeed(info, speed, clip->speed(), strobe, clip->baseClip()->getId());
+            if (effect.attribute("disable") == "1") doChangeClipSpeed(clip->info(), clip->speedIndependantInfo(), 1.0, clip->speed(), 1, clip->baseClip()->getId());
+            else {
+                double speed = EffectsList::parameter(effect, "speed").toDouble() / 100.0;
+                int strobe = EffectsList::parameter(effect, "strobe").toInt();
+                if (strobe == 0) strobe = 1;
+                doChangeClipSpeed(clip->info(), clip->speedIndependantInfo(), speed, clip->speed(), strobe, clip->baseClip()->getId());
+            }
             clip->setEffectAt(ix, effect);
             if (ix == clip->selectedEffectIndex()) {
                 clip->setSelectedEffect(ix);
+                if (!triggeredByUser) emit clipItemSelected(clip, ix);
             }
             return;
         }
@@ -1504,11 +1788,7 @@ void CustomTrackView::updateEffect(int track, GenTime pos, QDomElement effect, i
             clip->initEffect(effect);
             effectParams = clip->getEffectArgs(effect);
         }
-        if (effectParams.paramValue("disabled") == "1") {
-            if (m_document->renderer()->mltRemoveEffect(track, pos, effectParams.paramValue("kdenlive_ix"), false)) {
-                kDebug() << "//////  DISABLING EFFECT: " << ix << ", CURRENTLA: " << clip->selectedEffectIndex();
-            } else emit displayMessage(i18n("Problem deleting effect"), ErrorMessage);
-        } else if (!m_document->renderer()->mltEditEffect(m_document->tracksCount() - clip->track(), clip->startPos(), effectParams))
+        if (!m_document->renderer()->mltEditEffect(m_document->tracksCount() - clip->track(), clip->startPos(), effectParams))
             emit displayMessage(i18n("Problem editing effect"), ErrorMessage);
 
         clip->setEffectAt(ix, effect);
@@ -1533,13 +1813,18 @@ void CustomTrackView::updateEffect(int track, GenTime pos, QDomElement effect, i
 
 void CustomTrackView::moveEffect(int track, GenTime pos, int oldPos, int newPos)
 {
-    ClipItem *clip = getClipItemAt((int)pos.frames(m_document->fps()) + 1, m_document->tracksCount() - track);
+    ClipItem *clip = getClipItemAt((int)pos.frames(m_document->fps()), m_document->tracksCount() - track);
     if (clip && !clip->effectAt(newPos - 1).isNull() && !clip->effectAt(oldPos - 1).isNull()) {
-        QDomElement act = clip->effectAt(newPos - 1).cloneNode().toElement();
-        QDomElement before = clip->effectAt(oldPos - 1).cloneNode().toElement();
+        QDomElement act = clip->effectAt(newPos - 1);
+        QDomElement before = clip->effectAt(oldPos - 1);
         clip->setEffectAt(oldPos - 1, act);
         clip->setEffectAt(newPos - 1, before);
-        m_document->renderer()->mltMoveEffect(track, pos, oldPos, newPos);
+        // special case: speed effect, which is a pseudo-effect, not appearing in MLT's effects
+        if (act.attribute("id") == "speed") {
+            m_document->renderer()->mltUpdateEffectPosition(track, pos, oldPos, newPos);
+        } else if (before.attribute("id") == "speed") {
+            m_document->renderer()->mltUpdateEffectPosition(track, pos, newPos, oldPos);
+        } else m_document->renderer()->mltMoveEffect(track, pos, oldPos, newPos);
         emit clipItemSelected(clip, newPos - 1);
         setDocumentModified();
     } else emit displayMessage(i18n("Cannot move effect"), ErrorMessage);
@@ -1547,23 +1832,10 @@ void CustomTrackView::moveEffect(int track, GenTime pos, int oldPos, int newPos)
 
 void CustomTrackView::slotChangeEffectState(ClipItem *clip, int effectPos, bool disable)
 {
-    QDomElement effect = clip->effectAt(effectPos).cloneNode().toElement();
+    QDomElement effect = clip->effectAt(effectPos);
     QDomElement oldEffect = effect.cloneNode().toElement();
-    if (effect.attribute("id") == "speed") {
-        if (clip) {
-            ItemInfo info = clip->info();
-            effect.setAttribute("disabled", (int) disable);
-            if (disable) doChangeClipSpeed(info, 1.0, clip->speed(), 1, clip->baseClip()->getId());
-            else {
-                double speed = EffectsList::parameter(effect, "speed").toDouble() / 100.0;
-                int strobe = EffectsList::parameter(effect, "strobe").toInt();
-                if (strobe == 0) strobe = 1;
-                doChangeClipSpeed(info, speed, 1.0, strobe, clip->baseClip()->getId());
-            }
-            return;
-        }
-    }
-    effect.setAttribute("disabled", (int) disable);
+
+    effect.setAttribute("disable", (int) disable);
     EditEffectCommand *command = new EditEffectCommand(this, m_document->tracksCount() - clip->track(), clip->startPos(), oldEffect, effect, effectPos, true);
     m_commandStack->push(command);
     setDocumentModified();;
@@ -1582,16 +1854,28 @@ void CustomTrackView::slotUpdateClipEffect(ClipItem *clip, QDomElement oldeffect
     m_commandStack->push(command);
 }
 
-void CustomTrackView::cutClip(ItemInfo info, GenTime cutTime, bool cut)
+void CustomTrackView::slotUpdateClipRegion(ClipItem *clip, int ix, QString region)
+{
+    QDomElement effect = clip->getEffectAt(ix);
+    QDomElement oldeffect = effect.cloneNode().toElement();
+    effect.setAttribute("region", region);
+    EditEffectCommand *command = new EditEffectCommand(this, m_document->tracksCount() - clip->track(), clip->startPos(), oldeffect, effect, ix, true);
+    m_commandStack->push(command);
+}
+
+ClipItem *CustomTrackView::cutClip(ItemInfo info, GenTime cutTime, bool cut, bool execute)
 {
     if (cut) {
         // cut clip
         ClipItem *item = getClipItemAt((int) info.startPos.frames(m_document->fps()), info.track);
         if (!item || cutTime >= item->endPos() || cutTime <= item->startPos()) {
             emit displayMessage(i18n("Cannot find clip to cut"), ErrorMessage);
-            kDebug() << "/////////  ERROR CUTTING CLIP : (" << item->startPos().frames(25) << "-" << item->endPos().frames(25) << "), INFO: (" << info.startPos.frames(25) << "-" << info.endPos.frames(25) << ")" << ", CUT: " << cutTime.frames(25);
+            if (item)
+                kDebug() << "/////////  ERROR CUTTING CLIP : (" << item->startPos().frames(25) << "-" << item->endPos().frames(25) << "), INFO: (" << info.startPos.frames(25) << "-" << info.endPos.frames(25) << ")" << ", CUT: " << cutTime.frames(25);
+            else
+                kDebug() << "/// ERROR NO CLIP at: " << info.startPos.frames(m_document->fps()) << ", track: " << info.track;
             m_blockRefresh = false;
-            return;
+            return NULL;
         }
         if (item->parentItem()) {
             // Item is part of a group, reset group
@@ -1599,15 +1883,17 @@ void CustomTrackView::cutClip(ItemInfo info, GenTime cutTime, bool cut)
         }
         kDebug() << "/////////  CUTTING CLIP : (" << item->startPos().frames(25) << "-" << item->endPos().frames(25) << "), INFO: (" << info.startPos.frames(25) << "-" << info.endPos.frames(25) << ")" << ", CUT: " << cutTime.frames(25);
 
-        m_document->renderer()->mltCutClip(m_document->tracksCount() - info.track, cutTime);
+        if (execute) m_document->renderer()->mltCutClip(m_document->tracksCount() - info.track, cutTime);
         int cutPos = (int) cutTime.frames(m_document->fps());
         ItemInfo newPos;
-        double speed = item->speed();
         newPos.startPos = cutTime;
         newPos.endPos = info.endPos;
-        if (speed == 1) newPos.cropStart = item->info().cropStart + (cutTime - info.startPos);
-        else newPos.cropStart = item->info().cropStart + (cutTime - info.startPos) * speed;
+        newPos.cropStart = item->info().cropStart + (cutTime - info.startPos);
         newPos.track = info.track;
+        newPos.cropDuration = newPos.endPos - newPos.startPos;
+
+        bool snap = KdenliveSettings::snaptopoints();
+        KdenliveSettings::setSnaptopoints(false);
         ClipItem *dup = item->clone(newPos);
         // remove unwanted effects (fade in) from 2nd part of cutted clip
         int ix = dup->hasEffect(QString(), "fadein");
@@ -1620,27 +1906,32 @@ void CustomTrackView::cutClip(ItemInfo info, GenTime cutTime, bool cut)
             QDomElement oldeffect = item->effectAt(ix);
             dup->deleteEffect(oldeffect.attribute("kdenlive_ix"));
         }
-        item->resizeEnd(cutPos, false);
+        item->resizeEnd(cutPos);
         scene()->addItem(dup);
-        if (item->checkKeyFrames()) slotRefreshEffects(item);
-        if (dup->checkKeyFrames()) slotRefreshEffects(dup);
+        if (item->checkKeyFrames())
+            slotRefreshEffects(item);
+        if (dup->checkKeyFrames())
+            slotRefreshEffects(dup);
         item->baseClip()->addReference();
         m_document->updateClip(item->baseClip()->getId());
         setDocumentModified();
+        KdenliveSettings::setSnaptopoints(snap);
+        return dup;
         //kDebug() << "/////////  CUTTING CLIP RESULT: (" << item->startPos().frames(25) << "-" << item->endPos().frames(25) << "), DUP: (" << dup->startPos().frames(25) << "-" << dup->endPos().frames(25) << ")" << ", CUT: " << cutTime.frames(25);
     } else {
         // uncut clip
 
         ClipItem *item = getClipItemAt((int) info.startPos.frames(m_document->fps()), info.track);
-        ClipItem *dup = getClipItemAt((int) cutTime.frames(m_document->fps()) + 1, info.track);
+        ClipItem *dup = getClipItemAt((int) cutTime.frames(m_document->fps()), info.track);
+
         if (!item || !dup || item == dup) {
             emit displayMessage(i18n("Cannot find clip to uncut"), ErrorMessage);
             m_blockRefresh = false;
-            return;
+            return NULL;
         }
         if (m_document->renderer()->mltRemoveClip(m_document->tracksCount() - info.track, cutTime) == false) {
             emit displayMessage(i18n("Error removing clip at %1 on track %2", m_document->timecode().getTimecodeFromFrames(cutTime.frames(m_document->fps())), info.track), ErrorMessage);
-            return;
+            return NULL;
         }
 
         /*kDebug() << "// UNCUTTING CLIPS: ITEM 1 (" << item->startPos().frames(25) << "x" << item->endPos().frames(25) << ")";
@@ -1648,6 +1939,8 @@ void CustomTrackView::cutClip(ItemInfo info, GenTime cutTime, bool cut)
         kDebug() << "// UNCUTTING CLIPS, INFO (" << info.startPos.frames(25) << "x" << info.endPos.frames(25) << ") , CUT: " << cutTime.frames(25);;*/
         //deleteClip(dup->info());
 
+        bool snap = KdenliveSettings::snaptopoints();
+        KdenliveSettings::setSnaptopoints(false);
 
         if (dup->isSelected()) emit clipItemSelected(NULL);
         dup->baseClip()->removeReference();
@@ -1661,11 +1954,13 @@ void CustomTrackView::cutClip(ItemInfo info, GenTime cutTime, bool cut)
         if (success) {
             item->resizeEnd((int) info.endPos.frames(m_document->fps()));
             setDocumentModified();
-        } else
+        } else {
             emit displayMessage(i18n("Error when resizing clip"), ErrorMessage);
-
+        }
+        KdenliveSettings::setSnaptopoints(snap);
+        return item;
     }
-    QTimer::singleShot(3000, this, SLOT(slotEnableRefresh()));
+    //QTimer::singleShot(3000, this, SLOT(slotEnableRefresh()));
 }
 
 void CustomTrackView::slotEnableRefresh()
@@ -1773,11 +2068,11 @@ void CustomTrackView::slotAddTransition(ClipItem* /*clip*/, ItemInfo transitionI
     setDocumentModified();
 }
 
-void CustomTrackView::addTransition(ItemInfo transitionInfo, int endTrack, QDomElement params)
+void CustomTrackView::addTransition(ItemInfo transitionInfo, int endTrack, QDomElement params, bool refresh)
 {
     Transition *tr = new Transition(transitionInfo, endTrack, m_document->fps(), params, true);
     //kDebug() << "---- ADDING transition " << params.attribute("value");
-    if (m_document->renderer()->mltAddTransition(tr->transitionTag(), endTrack, m_document->tracksCount() - transitionInfo.track, transitionInfo.startPos, transitionInfo.endPos, tr->toXML())) {
+    if (m_document->renderer()->mltAddTransition(tr->transitionTag(), endTrack, m_document->tracksCount() - transitionInfo.track, transitionInfo.startPos, transitionInfo.endPos, tr->toXML(), refresh)) {
         scene()->addItem(tr);
         setDocumentModified();
     } else {
@@ -1786,16 +2081,22 @@ void CustomTrackView::addTransition(ItemInfo transitionInfo, int endTrack, QDomE
     }
 }
 
-void CustomTrackView::deleteTransition(ItemInfo transitionInfo, int endTrack, QDomElement /*params*/)
+void CustomTrackView::deleteTransition(ItemInfo transitionInfo, int endTrack, QDomElement /*params*/, bool refresh)
 {
     Transition *item = getTransitionItemAt(transitionInfo.startPos, transitionInfo.track);
     if (!item) {
         emit displayMessage(i18n("Select clip to delete"), ErrorMessage);
         return;
     }
-    m_document->renderer()->mltDeleteTransition(item->transitionTag(), endTrack, m_document->tracksCount() - transitionInfo.track, transitionInfo.startPos, transitionInfo.endPos, item->toXML());
+    m_document->renderer()->mltDeleteTransition(item->transitionTag(), endTrack, m_document->tracksCount() - transitionInfo.track, transitionInfo.startPos, transitionInfo.endPos, item->toXML(), refresh);
     if (m_dragItem == item) m_dragItem = NULL;
+
+#if QT_VERSION >= 0x040600
+    // animate item deletion
+    item->closeAnimation();
+#else
     delete item;
+#endif
     emit transitionItemSelected(NULL);
     setDocumentModified();
 }
@@ -1803,7 +2104,12 @@ void CustomTrackView::deleteTransition(ItemInfo transitionInfo, int endTrack, QD
 void CustomTrackView::slotTransitionUpdated(Transition *tr, QDomElement old)
 {
     //kDebug() << "TRANS UPDATE, TRACKS: " << old.attribute("transition_btrack") << ", NEW: " << tr->toXML().attribute("transition_btrack");
-    EditTransitionCommand *command = new EditTransitionCommand(this, tr->track(), tr->startPos(), old, tr->toXML(), false);
+    QDomElement xml = tr->toXML();
+    if (old.isNull() || xml.isNull()) {
+        emit displayMessage(i18n("Cannot update transition"), ErrorMessage);
+        return;
+    }
+    EditTransitionCommand *command = new EditTransitionCommand(this, tr->track(), tr->startPos(), old, xml, false);
     m_commandStack->push(command);
     setDocumentModified();
 }
@@ -1815,7 +2121,9 @@ void CustomTrackView::updateTransition(int track, GenTime pos, QDomElement oldTr
         kWarning() << "Unable to find transition at pos :" << pos.frames(m_document->fps()) << ", ON track: " << track;
         return;
     }
-    m_document->renderer()->mltUpdateTransition(oldTransition.attribute("tag"), transition.attribute("tag"), transition.attribute("transition_btrack").toInt(), m_document->tracksCount() - transition.attribute("transition_atrack").toInt(), item->startPos(), item->endPos(), transition);
+    bool force = false;
+    if (oldTransition.attribute("transition_atrack") != transition.attribute("transition_atrack") || oldTransition.attribute("transition_btrack") != transition.attribute("transition_btrack")) force = true;
+    m_document->renderer()->mltUpdateTransition(oldTransition.attribute("tag"), transition.attribute("tag"), transition.attribute("transition_btrack").toInt(), m_document->tracksCount() - transition.attribute("transition_atrack").toInt(), item->startPos(), item->endPos(), transition, force);
     //kDebug() << "ORIGINAL TRACK: "<< oldTransition.attribute("transition_btrack") << ", NEW TRACK: "<<transition.attribute("transition_btrack");
     item->setTransitionParameters(transition);
     if (updateTransitionWidget) {
@@ -1825,6 +2133,7 @@ void CustomTrackView::updateTransition(int track, GenTime pos, QDomElement oldTr
         if (transitionClip && transitionClip->baseClip()) {
             QString size = transitionClip->baseClip()->getProperty("frame_size");
             double factor = transitionClip->baseClip()->getProperty("aspect_ratio").toDouble();
+            if (factor == 0) factor = 1.0;
             p.setX((int)(size.section('x', 0, 0).toInt() * factor + 0.5));
             p.setY(size.section('x', 1, 1).toInt());
         }
@@ -1835,13 +2144,17 @@ void CustomTrackView::updateTransition(int track, GenTime pos, QDomElement oldTr
 
 void CustomTrackView::dragMoveEvent(QDragMoveEvent * event)
 {
-    event->setDropAction(Qt::IgnoreAction);
-    const QPointF pos = mapToScene(event->pos());
-    if (m_selectionGroup && m_clipDrag) {
-        m_selectionGroup->setPos(pos.x(), pos.y());
-        emit mousePosition((int)(m_selectionGroup->scenePos().x() + 0.5));
-        event->setDropAction(Qt::MoveAction);
-        event->acceptProposedAction();
+    if (m_clipDrag) {
+        const QPointF pos = mapToScene(event->pos());
+        if (m_selectionGroup) {
+            m_selectionGroup->setPos(pos);
+            emit mousePosition((int)(m_selectionGroup->scenePos().x() + 0.5));
+            event->acceptProposedAction();
+        } else {
+            // Drag enter was not possible, try again at mouse position
+            insertDropClips(event->mimeData(), event->pos());
+            event->accept();
+        }
     } else {
         QGraphicsView::dragMoveEvent(event);
     }
@@ -1868,6 +2181,7 @@ void CustomTrackView::dropEvent(QDropEvent * event)
         bool hasVideoClip = false;
         QUndoCommand *addCommand = new QUndoCommand();
         addCommand->setText(i18n("Add timeline clip"));
+        QList <ClipItem *> brokenClips;
 
         for (int i = 0; i < items.count(); i++) {
             ClipItem *item = static_cast <ClipItem *>(items.at(i));
@@ -1878,8 +2192,9 @@ void CustomTrackView::dropEvent(QDropEvent * event)
                 updateClipTypeActions(NULL);
             }
 
-            new AddTimelineClipCommand(this, item->xml(), item->clipProducer(), item->info(), item->effectList(), false, false, addCommand);
+            //TODO: take care of edit mode for undo
             item->baseClip()->addReference();
+            //item->setZValue(item->defaultZValue());
             m_document->updateClip(item->baseClip()->getId());
             ItemInfo info = item->info();
 
@@ -1888,9 +2203,16 @@ void CustomTrackView::dropEvent(QDropEvent * event)
             if (isLocked) item->setItemLocked(true);
             ItemInfo clipInfo = info;
             clipInfo.track = m_document->tracksCount() - item->track();
-            if (m_document->renderer()->mltInsertClip(clipInfo, item->xml(), item->baseClip()->producer(item->track())) == -1) {
+
+            int worked = m_document->renderer()->mltInsertClip(clipInfo, item->xml(), item->baseClip()->producer(item->track()), m_scene->editMode() == OVERWRITEEDIT, m_scene->editMode() == INSERTEDIT);
+            if (worked == -1) {
                 emit displayMessage(i18n("Cannot insert clip in timeline"), ErrorMessage);
+                brokenClips.append(item);
+                continue;
             }
+            adjustTimelineClips(m_scene->editMode(), item, ItemInfo(), addCommand);
+
+            new AddTimelineClipCommand(this, item->xml(), item->clipProducer(), item->info(), item->effectList(), m_scene->editMode() == OVERWRITEEDIT, m_scene->editMode() == INSERTEDIT, false, false, addCommand);
 
             if (item->baseClip()->isTransparent() && getTransitionItemAtStart(info.startPos, info.track) == NULL) {
                 // add transparency transition
@@ -1899,8 +2221,34 @@ void CustomTrackView::dropEvent(QDropEvent * event)
             }
             item->setSelected(true);
         }
-        m_commandStack->push(addCommand);
+        qDeleteAll(brokenClips);
+        brokenClips.clear();
+        if (addCommand->childCount() > 0) m_commandStack->push(addCommand);
+        else delete addCommand;
+
+        // Automatic audio split
+        if (KdenliveSettings::splitaudio())
+            splitAudio();
         setDocumentModified();
+
+        /*
+        // debug info
+        QRectF rect(0, 1 * m_tracksHeight + m_tracksHeight / 2, sceneRect().width(), 2);
+        QList<QGraphicsItem *> selection = m_scene->items(rect);
+        QStringList timelineList;
+
+        kDebug()<<"// ITEMS on TRACK: "<<selection.count();
+        for (int i = 0; i < selection.count(); i++) {
+               if (selection.at(i)->type() == AVWIDGET) {
+                   ClipItem *clip = static_cast <ClipItem *>(selection.at(i));
+                   int start = clip->startPos().frames(m_document->fps());
+                   int end = clip->endPos().frames(m_document->fps());
+                   timelineList.append(QString::number(start) + "-" + QString::number(end));
+            }
+        }
+        kDebug() << "// COMPARE:\n" << timelineList << "\n-------------------";
+        */
+
         m_pasteEffectsAction->setEnabled(m_copiedItems.count() == 1);
         if (items.count() > 1) groupSelectedItems(true);
         event->setDropAction(Qt::MoveAction);
@@ -1909,6 +2257,130 @@ void CustomTrackView::dropEvent(QDropEvent * event)
     setFocus();
 }
 
+void CustomTrackView::adjustTimelineClips(EDITMODE mode, ClipItem *item, ItemInfo posinfo, QUndoCommand *command)
+{
+    bool snap = KdenliveSettings::snaptopoints();
+    KdenliveSettings::setSnaptopoints(false);
+    if (mode == OVERWRITEEDIT) {
+        // if we are in overwrite mode, move clips accordingly
+        ItemInfo info;
+        if (item == NULL) info = posinfo;
+        else info = item->info();
+        QRectF rect(info.startPos.frames(m_document->fps()), info.track * m_tracksHeight + m_tracksHeight / 2, (info.endPos - info.startPos).frames(m_document->fps()) - 1, 5);
+        QList<QGraphicsItem *> selection = m_scene->items(rect);
+        if (item) selection.removeAll(item);
+        for (int i = 0; i < selection.count(); i++) {
+            if (!selection.at(i)->isEnabled()) continue;
+            if (selection.at(i)->type() == AVWIDGET) {
+                ClipItem *clip = static_cast<ClipItem *>(selection.at(i));
+                if (clip->startPos() < info.startPos) {
+                    if (clip->endPos() > info.endPos) {
+                        ItemInfo clipInfo = clip->info();
+                        ItemInfo dupInfo = clipInfo;
+                        GenTime diff = info.startPos - clipInfo.startPos;
+                        dupInfo.startPos = info.startPos;
+                        dupInfo.cropStart += diff;
+                        dupInfo.cropDuration = clipInfo.endPos - info.startPos;
+                        ItemInfo newdupInfo = dupInfo;
+                        GenTime diff2 = info.endPos - info.startPos;
+                        newdupInfo.startPos = info.endPos;
+                        newdupInfo.cropStart += diff2;
+                        newdupInfo.cropDuration = clipInfo.endPos - info.endPos;
+                        new RazorClipCommand(this, clipInfo, info.startPos, false, command);
+                        new ResizeClipCommand(this, dupInfo, newdupInfo, false, false, command);
+                        ClipItem *dup = cutClip(clipInfo, info.startPos, true, false);
+                        if (dup) dup->resizeStart(info.endPos.frames(m_document->fps()));
+                    } else {
+                        ItemInfo newclipInfo = clip->info();
+                        newclipInfo.endPos = info.startPos;
+                        new ResizeClipCommand(this, clip->info(), newclipInfo, false, false, command);
+                        clip->resizeEnd(info.startPos.frames(m_document->fps()));
+                    }
+                } else if (clip->endPos() <= info.endPos) {
+                    new AddTimelineClipCommand(this, clip->xml(), clip->clipProducer(), clip->info(), clip->effectList(), false, false, false, true, command);
+                    scene()->removeItem(clip);
+                    delete clip;
+                    clip = NULL;
+                } else {
+                    ItemInfo newclipInfo = clip->info();
+                    newclipInfo.startPos = info.endPos;
+                    new ResizeClipCommand(this, clip->info(), newclipInfo, false, false, command);
+                    clip->resizeStart(info.endPos.frames(m_document->fps()));
+                }
+            }
+        }
+    } else if (mode == INSERTEDIT) {
+        // if we are in push mode, move clips accordingly
+        ItemInfo info;
+        if (item == NULL) info = posinfo;
+        else info = item->info();
+        QRectF rect(info.startPos.frames(m_document->fps()), info.track * m_tracksHeight + m_tracksHeight / 2, (info.endPos - info.startPos).frames(m_document->fps()) - 1, 5);
+        QList<QGraphicsItem *> selection = m_scene->items(rect);
+        if (item) selection.removeAll(item);
+        for (int i = 0; i < selection.count(); i++) {
+            if (selection.at(i)->type() == AVWIDGET) {
+                ClipItem *clip = static_cast<ClipItem *>(selection.at(i));
+                if (clip->startPos() < info.startPos) {
+                    if (clip->endPos() > info.startPos) {
+                        ItemInfo clipInfo = clip->info();
+                        ItemInfo dupInfo = clipInfo;
+                        GenTime diff = info.startPos - clipInfo.startPos;
+                        dupInfo.startPos = info.startPos;
+                        dupInfo.cropStart += diff;
+                        dupInfo.cropDuration = clipInfo.endPos - info.startPos;
+                        new RazorClipCommand(this, clipInfo, info.startPos, false, command);
+                        // Commented out; variable dup unused. --granjow
+                        //ClipItem *dup = cutClip(clipInfo, info.startPos, true, false);
+                        cutClip(clipInfo, info.startPos, true, false);
+                    }
+                }
+                // TODO: add insertspacecommand
+            }
+        }
+    }
+
+    KdenliveSettings::setSnaptopoints(snap);
+}
+
+
+void CustomTrackView::adjustTimelineTransitions(EDITMODE mode, Transition *item, QUndoCommand *command)
+{
+    if (mode == OVERWRITEEDIT) {
+        // if we are in overwrite or push mode, move clips accordingly
+        bool snap = KdenliveSettings::snaptopoints();
+        KdenliveSettings::setSnaptopoints(false);
+        ItemInfo info = item->info();
+        QRectF rect(info.startPos.frames(m_document->fps()), info.track * m_tracksHeight + m_tracksHeight, (info.endPos - info.startPos).frames(m_document->fps()) - 1, 5);
+        QList<QGraphicsItem *> selection = m_scene->items(rect);
+        selection.removeAll(item);
+        for (int i = 0; i < selection.count(); i++) {
+            if (!selection.at(i)->isEnabled()) continue;
+            if (selection.at(i)->type() == TRANSITIONWIDGET) {
+                Transition *tr = static_cast<Transition *>(selection.at(i));
+                if (tr->startPos() < info.startPos) {
+                    ItemInfo firstPos = tr->info();
+                    ItemInfo newPos = firstPos;
+                    firstPos.endPos = item->startPos();
+                    newPos.startPos = item->endPos();
+                    new MoveTransitionCommand(this, tr->info(), firstPos, true, command);
+                    if (tr->endPos() > info.endPos) {
+                        // clone transition
+                        new AddTransitionCommand(this, newPos, tr->transitionEndTrack(), tr->toXML(), false, true, command);
+                    }
+                } else if (tr->endPos() > info.endPos) {
+                    // just resize
+                    ItemInfo firstPos = tr->info();
+                    firstPos.startPos = item->endPos();
+                    new MoveTransitionCommand(this, tr->info(), firstPos, true, command);
+                } else {
+                    // remove transition
+                    new AddTransitionCommand(this, tr->info(), tr->transitionEndTrack(), tr->toXML(), true, true, command);
+                }
+            }
+        }
+        KdenliveSettings::setSnaptopoints(snap);
+    }
+}
 
 QStringList CustomTrackView::mimeTypes() const
 {
@@ -1944,7 +2416,7 @@ int CustomTrackView::duration() const
 void CustomTrackView::addTrack(TrackInfo type, int ix)
 {
     if (ix == -1 || ix == m_document->tracksCount()) {
-        m_document->insertTrack(ix, type);
+        m_document->insertTrack(0, type);
         m_document->renderer()->mltInsertTrack(1, type.type == VIDEOTRACK);
     } else {
         m_document->insertTrack(m_document->tracksCount() - ix, type);
@@ -1961,7 +2433,7 @@ void CustomTrackView::addTrack(TrackInfo type, int ix)
         for (int i = 0; i < selection.count(); i++) {
             if ((!selection.at(i)->parentItem()) && (selection.at(i)->type() == AVWIDGET || selection.at(i)->type() == TRANSITIONWIDGET || selection.at(i)->type() == GROUPWIDGET)) {
                 m_selectionGroup->addToGroup(selection.at(i));
-                selection.at(i)->setFlags(QGraphicsItem::ItemIsSelectable);
+                selection.at(i)->setFlag(QGraphicsItem::ItemIsMovable, false);
             }
         }
         // Move graphic items
@@ -1980,13 +2452,18 @@ void CustomTrackView::addTrack(TrackInfo type, int ix)
             ItemInfo clipinfo = item->info();
             if (item->type() == AVWIDGET) {
                 ClipItem *clip = static_cast <ClipItem *>(item);
+                // slowmotion clips are not track dependant, so no need to update them
+                if (clip->speed() != 1.0) continue;
                 // We add a move clip command so that we get the correct producer for new track number
                 if (clip->clipType() == AV || clip->clipType() == AUDIO) {
                     Mlt::Producer *prod;
                     if (clip->isAudioOnly()) prod = clip->baseClip()->audioProducer(clipinfo.track);
                     else if (clip->isVideoOnly()) prod = clip->baseClip()->videoProducer();
                     else prod = clip->baseClip()->producer(clipinfo.track);
-                    m_document->renderer()->mltUpdateClipProducer((int)(m_document->tracksCount() - clipinfo.track), clipinfo.startPos.frames(m_document->fps()), prod);
+                    if (m_document->renderer()->mltUpdateClipProducer((int)(m_document->tracksCount() - clipinfo.track), clipinfo.startPos.frames(m_document->fps()), prod) == false) {
+                        // problem updating clip
+                        emit displayMessage(i18n("Cannot update clip (time: %1, track: %2)", clipinfo.startPos.frames(m_document->fps()), clipinfo.track), ErrorMessage);
+                    }
                 }
             } else if (item->type() == TRANSITIONWIDGET) {
                 Transition *tr = static_cast <Transition *>(item);
@@ -1999,16 +2476,17 @@ void CustomTrackView::addTrack(TrackInfo type, int ix)
         resetSelectionGroup(false);
     }
 
-    int maxHeight = m_tracksHeight * m_document->tracksCount();
+    int maxHeight = m_tracksHeight * m_document->tracksCount() * matrix().m22();
     for (int i = 0; i < m_guides.count(); i++) {
         QLineF l = m_guides.at(i)->line();
         l.setP2(QPointF(l.x2(), maxHeight));
         m_guides.at(i)->setLine(l);
     }
     m_cursorLine->setLine(m_cursorLine->line().x1(), 0, m_cursorLine->line().x1(), maxHeight);
-    setSceneRect(0, 0, sceneRect().width(), maxHeight);
-    QTimer::singleShot(300, this, SIGNAL(trackHeightChanged()));
+    setSceneRect(0, 0, sceneRect().width(), m_tracksHeight * m_document->tracksCount());
     viewport()->update();
+    emit tracksChanged();
+    //QTimer::singleShot(500, this, SIGNAL(trackHeightChanged()));
     //setFixedHeight(50 * m_tracksCount);
 }
 
@@ -2029,7 +2507,7 @@ void CustomTrackView::removeTrack(int ix)
     for (int i = 0; i < selection.count(); i++) {
         if ((!selection.at(i)->parentItem()) && (selection.at(i)->type() == AVWIDGET || selection.at(i)->type() == TRANSITIONWIDGET || selection.at(i)->type() == GROUPWIDGET)) {
             m_selectionGroup->addToGroup(selection.at(i));
-            selection.at(i)->setFlags(QGraphicsItem::ItemIsSelectable);
+            selection.at(i)->setFlag(QGraphicsItem::ItemIsMovable, false);
         }
     }
     // Move graphic items
@@ -2055,7 +2533,9 @@ void CustomTrackView::removeTrack(int ix)
                 if (clip->isAudioOnly()) prod = clip->baseClip()->audioProducer(clipinfo.track);
                 else if (clip->isVideoOnly()) prod = clip->baseClip()->videoProducer();
                 else prod = clip->baseClip()->producer(clipinfo.track);
-                m_document->renderer()->mltUpdateClipProducer((int)(m_document->tracksCount() - clipinfo.track), clipinfo.startPos.frames(m_document->fps()), prod);
+                if (!m_document->renderer()->mltUpdateClipProducer((int)(m_document->tracksCount() - clipinfo.track), clipinfo.startPos.frames(m_document->fps()), prod)) {
+                    emit displayMessage(i18n("Cannot update clip (time: %1, track: %2)", clipinfo.startPos.frames(m_document->fps()), clipinfo.track), ErrorMessage);
+                }
             }
         } else if (children.at(i)->type() == TRANSITIONWIDGET) {
             Transition *tr = static_cast <Transition *>(children.at(i));
@@ -2069,28 +2549,32 @@ void CustomTrackView::removeTrack(int ix)
     }
     resetSelectionGroup(false);
 
-    int maxHeight = m_tracksHeight * m_document->tracksCount();
+    int maxHeight = m_tracksHeight * m_document->tracksCount() * matrix().m22();
     for (int i = 0; i < m_guides.count(); i++) {
         QLineF l = m_guides.at(i)->line();
         l.setP2(QPointF(l.x2(), maxHeight));
         m_guides.at(i)->setLine(l);
     }
     m_cursorLine->setLine(m_cursorLine->line().x1(), 0, m_cursorLine->line().x1(), maxHeight);
-    setSceneRect(0, 0, sceneRect().width(), maxHeight);
-    QTimer::singleShot(300, this, SIGNAL(trackHeightChanged()));
+    setSceneRect(0, 0, sceneRect().width(), m_tracksHeight * m_document->tracksCount());
+
+    m_selectedTrack = qMin(m_selectedTrack, m_document->tracksCount() - 1);
     viewport()->update();
+    emit tracksChanged();
+    //QTimer::singleShot(500, this, SIGNAL(trackHeightChanged()));
 }
 
-void CustomTrackView::changeTrack(int ix, TrackInfo type)
+void CustomTrackView::configTracks(QList < TrackInfo > trackInfos)
 {
-    int tracknumber = m_document->tracksCount() - ix;
-    m_document->setTrackType(tracknumber - 1, type);
-    m_document->renderer()->mltChangeTrackState(tracknumber, m_document->trackInfoAt(tracknumber - 1).isMute, m_document->trackInfoAt(tracknumber - 1).isBlind);
+    for (int i = 0; i < trackInfos.count(); ++i) {
+        m_document->setTrackType(i, trackInfos.at(i));
+        m_document->renderer()->mltChangeTrackState(i + 1, m_document->trackInfoAt(i).isMute, m_document->trackInfoAt(i).isBlind);
+    }
+
     QTimer::singleShot(300, this, SIGNAL(trackHeightChanged()));
     viewport()->update();
 }
 
-
 void CustomTrackView::slotSwitchTrackAudio(int ix)
 {
     /*for (int i = 0; i < m_document->tracksCount(); i++)
@@ -2115,6 +2599,7 @@ void CustomTrackView::lockTrack(int ix, bool lock)
     int tracknumber = m_document->tracksCount() - ix - 1;
     m_document->switchTrackLock(tracknumber, lock);
     emit doTrackLock(ix, lock);
+    AbstractClipItem *clip = NULL;
     QList<QGraphicsItem *> selection = m_scene->items(0, ix * m_tracksHeight + m_tracksHeight / 2, sceneRect().width(), m_tracksHeight / 2 - 2);
 
     for (int i = 0; i < selection.count(); i++) {
@@ -2123,7 +2608,10 @@ void CustomTrackView::lockTrack(int ix, bool lock)
             if (selection.at(i)->type() == AVWIDGET) emit clipItemSelected(NULL);
             else emit transitionItemSelected(NULL);
         }
-        static_cast <AbstractClipItem *>(selection.at(i))->setItemLocked(lock);
+        clip = static_cast <AbstractClipItem *>(selection.at(i));
+        clip->setItemLocked(lock);
+        if (clip == m_dragItem)
+            m_dragItem = NULL;
     }
     kDebug() << "NEXT TRK STATE: " << m_document->trackInfoAt(tracknumber).isLocked;
     viewport()->update();
@@ -2138,6 +2626,25 @@ void CustomTrackView::slotSwitchTrackVideo(int ix)
     setDocumentModified();
 }
 
+QList<QGraphicsItem *> CustomTrackView::checkForGroups(const QRectF &rect, bool *ok)
+{
+    // Check there is no group going over several tracks there, or that would result in timeline corruption
+    QList<QGraphicsItem *> selection = scene()->items(rect);
+    *ok = true;
+    int maxHeight = m_tracksHeight * 1.5;
+    for (int i = 0; i < selection.count(); i++) {
+        // Check that we don't try to move a group with clips on other tracks
+        if (selection.at(i)->type() == GROUPWIDGET && (selection.at(i)->boundingRect().height() >= maxHeight)) {
+            *ok = false;
+            break;
+        } else if (selection.at(i)->parentItem() && (selection.at(i)->parentItem()->boundingRect().height() >= maxHeight)) {
+            *ok = false;
+            break;
+        }
+    }
+    return selection;
+}
+
 void CustomTrackView::slotRemoveSpace()
 {
     GenTime pos;
@@ -2151,6 +2658,12 @@ void CustomTrackView::slotRemoveSpace()
         pos = GenTime((int)(mapToScene(m_menuPosition).x()), m_document->fps());
         track = (int)(mapToScene(m_menuPosition).y() / m_tracksHeight);
     }
+
+    if (m_document->isTrackLocked(m_document->tracksCount() - track - 1)) {
+        emit displayMessage(i18n("Cannot remove space in a locked track"), ErrorMessage);
+        return;
+    }
+
     ClipItem *item = getClipItemAt(pos, track);
     if (item) {
         emit displayMessage(i18n("You must be in an empty space to remove space (time: %1, track: %2)", m_document->timecode().getTimecodeFromFrames(mapToScene(m_menuPosition).x()), track), ErrorMessage);
@@ -2159,12 +2672,20 @@ void CustomTrackView::slotRemoveSpace()
     int length = m_document->renderer()->mltGetSpaceLength(pos, m_document->tracksCount() - track, true);
     //kDebug() << "// GOT LENGT; " << length;
     if (length <= 0) {
-        emit displayMessage(i18n("You must be in an empty space to remove space (time=%1, track:%2)", m_document->timecode().getTimecodeFromFrames(mapToScene(m_menuPosition).x()), track), ErrorMessage);
+        emit displayMessage(i18n("You must be in an empty space to remove space (time: %1, track: %2)", m_document->timecode().getTimecodeFromFrames(mapToScene(m_menuPosition).x()), track), ErrorMessage);
         return;
     }
 
-    QRectF r(pos.frames(m_document->fps()), track * m_tracksHeight + m_tracksHeight / 2, sceneRect().width() - pos.frames(m_document->fps()), m_tracksHeight / 2 - 1);
-    QList<QGraphicsItem *> items = m_scene->items(r);
+    // Make sure there is no group in the way
+    QRectF rect(pos.frames(m_document->fps()), track * m_tracksHeight + m_tracksHeight / 2, sceneRect().width() - pos.frames(m_document->fps()), m_tracksHeight / 2 - 2);
+
+    bool isOk;
+    QList<QGraphicsItem *> items = checkForGroups(rect, &isOk);
+    if (!isOk) {
+        // groups found on track, do not allow the move
+        emit displayMessage(i18n("Cannot remove space in a track with a group"), ErrorMessage);
+        return;
+    }
 
     QList<ItemInfo> clipsToMove;
     QList<ItemInfo> transitionsToMove;
@@ -2195,22 +2716,34 @@ void CustomTrackView::slotInsertSpace()
         pos = GenTime((int)(mapToScene(m_menuPosition).x()), m_document->fps());
         track = (int)(mapToScene(m_menuPosition).y() / m_tracksHeight) + 1;
     }
-    SpacerDialog d(GenTime(65, m_document->fps()), m_document->timecode(), track, m_document->tracksCount(), this);
+    SpacerDialog d(GenTime(65, m_document->fps()), m_document->timecode(), track, m_document->tracksList(), this);
     if (d.exec() != QDialog::Accepted) return;
     GenTime spaceDuration = d.selectedDuration();
     track = d.selectedTrack();
-    ClipItem *item = getClipItemAt(pos, track);
-    if (item) pos = item->startPos();
 
-    int minh = 0;
-    int maxh = sceneRect().height();
-    if (track != -1) {
-        minh = track * m_tracksHeight + m_tracksHeight / 2;
-        maxh = m_tracksHeight / 2 - 1;
-    }
+    QList<QGraphicsItem *> items;
+    if (track > 0) {
+        if (m_document->isTrackLocked(m_document->tracksCount() - track - 1)) {
+            emit displayMessage(i18n("Cannot insert space in a locked track"), ErrorMessage);
+            return;
+        }
+
+        ClipItem *item = getClipItemAt(pos, track);
+        if (item) pos = item->startPos();
 
-    QRectF r(pos.frames(m_document->fps()), minh, sceneRect().width() - pos.frames(m_document->fps()), maxh);
-    QList<QGraphicsItem *> items = m_scene->items(r);
+        // Make sure there is no group in the way
+        QRectF rect(pos.frames(m_document->fps()), track * m_tracksHeight + m_tracksHeight / 2, sceneRect().width() - pos.frames(m_document->fps()), m_tracksHeight / 2 - 2);
+        bool isOk;
+        items = checkForGroups(rect, &isOk);
+        if (!isOk) {
+            // groups found on track, do not allow the move
+            emit displayMessage(i18n("Cannot insert space in a track with a group"), ErrorMessage);
+            return;
+        }
+    } else {
+        QRectF rect(pos.frames(m_document->fps()), 0, sceneRect().width() - pos.frames(m_document->fps()), m_document->tracksCount() * m_tracksHeight);
+        items = scene()->items(rect);
+    }
 
     QList<ItemInfo> clipsToMove;
     QList<ItemInfo> transitionsToMove;
@@ -2219,16 +2752,17 @@ void CustomTrackView::slotInsertSpace()
         if (items.at(i)->type() == AVWIDGET || items.at(i)->type() == TRANSITIONWIDGET) {
             AbstractClipItem *item = static_cast <AbstractClipItem *>(items.at(i));
             ItemInfo info = item->info();
-            if (item->type() == AVWIDGET) {
+            if (item->type() == AVWIDGET)
                 clipsToMove.append(info);
-            } else if (item->type() == TRANSITIONWIDGET) {
+            else if (item->type() == TRANSITIONWIDGET)
                 transitionsToMove.append(info);
-            }
         }
     }
 
-    InsertSpaceCommand *command = new InsertSpaceCommand(this, clipsToMove, transitionsToMove, track, spaceDuration, true);
-    m_commandStack->push(command);
+    if (!clipsToMove.isEmpty() || !transitionsToMove.isEmpty()) {
+        InsertSpaceCommand *command = new InsertSpaceCommand(this, clipsToMove, transitionsToMove, track, spaceDuration, true);
+        m_commandStack->push(command);
+    }
 }
 
 void CustomTrackView::insertSpace(QList<ItemInfo> clipsToMove, QList<ItemInfo> transToMove, int track, const GenTime duration, const GenTime offset)
@@ -2254,41 +2788,50 @@ void CustomTrackView::insertSpace(QList<ItemInfo> clipsToMove, QList<ItemInfo> t
             if (clip) {
                 if (clip->parentItem()) {
                     m_selectionGroup->addToGroup(clip->parentItem());
-                    clip->parentItem()->setFlags(QGraphicsItem::ItemIsSelectable);
+                    clip->parentItem()->setFlag(QGraphicsItem::ItemIsMovable, false);
                 } else {
                     m_selectionGroup->addToGroup(clip);
-                    clip->setFlags(QGraphicsItem::ItemIsSelectable);
+                    clip->setFlag(QGraphicsItem::ItemIsMovable, false);
                 }
                 if (trackClipStartList.value(m_document->tracksCount() - clipsToMove.at(i).track) == -1 || clipsToMove.at(i).startPos.frames(m_document->fps()) < trackClipStartList.value(m_document->tracksCount() - clipsToMove.at(i).track))
                     trackClipStartList[m_document->tracksCount() - clipsToMove.at(i).track] = clipsToMove.at(i).startPos.frames(m_document->fps());
-            } else emit displayMessage(i18n("Cannot move clip at position %1, track %2", m_document->timecode().getTimecodeFromFrames(clipsToMove.at(i).startPos.frames(m_document->fps())), clipsToMove.at(i).track), ErrorMessage);
-        }
+            } else emit {
+                    displayMessage(i18n("Cannot move clip at position %1, track %2", m_document->timecode().getTimecodeFromFrames((clipsToMove.at(i).startPos + offset).frames(m_document->fps())), clipsToMove.at(i).track), ErrorMessage);
+                }
+            }
     if (!transToMove.isEmpty()) for (int i = 0; i < transToMove.count(); i++) {
             transition = getTransitionItemAtStart(transToMove.at(i).startPos + offset, transToMove.at(i).track);
             if (transition) {
-                if (transition->parentItem()) m_selectionGroup->addToGroup(transition->parentItem());
-                m_selectionGroup->addToGroup(transition);
+                if (transition->parentItem()) {
+                    m_selectionGroup->addToGroup(transition->parentItem());
+                    transition->parentItem()->setFlag(QGraphicsItem::ItemIsMovable, false);
+                } else {
+                    m_selectionGroup->addToGroup(transition);
+                    transition->setFlag(QGraphicsItem::ItemIsMovable, false);
+                }
                 if (trackTransitionStartList.value(m_document->tracksCount() - transToMove.at(i).track) == -1 || transToMove.at(i).startPos.frames(m_document->fps()) < trackTransitionStartList.value(m_document->tracksCount() - transToMove.at(i).track))
                     trackTransitionStartList[m_document->tracksCount() - transToMove.at(i).track] = transToMove.at(i).startPos.frames(m_document->fps());
-                transition->setFlags(QGraphicsItem::ItemIsSelectable);
             } else emit displayMessage(i18n("Cannot move transition at position %1, track %2", m_document->timecode().getTimecodeFromFrames(transToMove.at(i).startPos.frames(m_document->fps())), transToMove.at(i).track), ErrorMessage);
         }
     m_selectionGroup->translate(diff, 0);
 
     // update items coordinates
-    QList<QGraphicsItem *> itemList = scene()->selectedItems();
+    QList<QGraphicsItem *> itemList = m_selectionGroup->childItems();
+
     for (int i = 0; i < itemList.count(); i++) {
         if (itemList.at(i)->type() == AVWIDGET || itemList.at(i)->type() == TRANSITIONWIDGET) {
             static_cast < AbstractClipItem *>(itemList.at(i))->updateItem();
         } else if (itemList.at(i)->type() == GROUPWIDGET) {
             QList<QGraphicsItem *> children = itemList.at(i)->childItems();
             for (int j = 0; j < children.count(); j++) {
-                static_cast < AbstractClipItem *>(children.at(j))->updateItem();
+                AbstractClipItem * clp = static_cast < AbstractClipItem *>(children.at(j));
+                clp->updateItem();
             }
         }
     }
     resetSelectionGroup(false);
-    if (track != -1) track = m_document->tracksCount() - track;
+    if (track != -1)
+        track = m_document->tracksCount() - track;
     m_document->renderer()->mltInsertSpace(trackClipStartList, trackTransitionStartList, track, duration, offset);
 }
 
@@ -2297,7 +2840,6 @@ void CustomTrackView::deleteClip(const QString &clipId)
     resetSelectionGroup();
     QList<QGraphicsItem *> itemList = items();
     QUndoCommand *deleteCommand = new QUndoCommand();
-    deleteCommand->setText(i18n("Delete timeline clips"));
     int count = 0;
     for (int i = 0; i < itemList.count(); i++) {
         if (itemList.at(i)->type() == AVWIDGET) {
@@ -2308,10 +2850,11 @@ void CustomTrackView::deleteClip(const QString &clipId)
                     // Clip is in a group, destroy the group
                     new GroupClipsCommand(this, QList<ItemInfo>() << item->info(), QList<ItemInfo>(), false, deleteCommand);
                 }
-                new AddTimelineClipCommand(this, item->xml(), item->clipProducer(), item->info(), item->effectList(), true, true, deleteCommand);
+                new AddTimelineClipCommand(this, item->xml(), item->clipProducer(), item->info(), item->effectList(), false, false, true, true, deleteCommand);
             }
         }
     }
+    deleteCommand->setText(i18np("Delete timeline clip", "Delete timeline clips", count));
     if (count == 0) delete deleteCommand;
     else m_commandStack->push(deleteCommand);
 }
@@ -2362,6 +2905,10 @@ void CustomTrackView::mouseReleaseEvent(QMouseEvent * event)
 {
     if (m_moveOpMode == SEEK) m_moveOpMode = NONE;
     QGraphicsView::mouseReleaseEvent(event);
+    setViewportUpdateMode(QGraphicsView::MinimalViewportUpdate);
+#if QT_VERSION >= 0x040600
+    if (m_dragItem) m_dragItem->setGraphicsEffect(NULL);
+#endif
     if (m_scrollTimer.isActive()) m_scrollTimer.stop();
     if (event->button() == Qt::MidButton) {
         return;
@@ -2388,7 +2935,8 @@ void CustomTrackView::mouseReleaseEvent(QMouseEvent * event)
             // We are moving all tracks
             track = -1;
         } else track = (int)(mapToScene(m_clickEvent).y() / m_tracksHeight);
-        GenTime timeOffset = GenTime(m_selectionGroup->scenePos().x(), m_document->fps()) - m_selectionGroupInfo.startPos;
+        GenTime timeOffset = GenTime((int)(m_selectionGroup->scenePos().x()), m_document->fps()) - m_selectionGroupInfo.startPos;
+
         if (timeOffset != GenTime()) {
             QList<QGraphicsItem *> items = m_selectionGroup->childItems();
 
@@ -2404,10 +2952,9 @@ void CustomTrackView::mouseReleaseEvent(QMouseEvent * event)
                 trackTransitionStartList[i] = -1;
             }
 
-            int max = items.count();
-            for (int i = 0; i < max; i++) {
+            for (int i = 0; i < items.count(); i++) {
                 if (items.at(i)->type() == GROUPWIDGET)
-                    items += static_cast <QGraphicsItemGroup *>(items.at(i))->childItems();
+                    items += items.at(i)->childItems();
             }
 
             for (int i = 0; i < items.count(); i++) {
@@ -2427,12 +2974,14 @@ void CustomTrackView::mouseReleaseEvent(QMouseEvent * event)
                         trackTransitionStartList[m_document->tracksCount() - info.track] = info.startPos.frames(m_document->fps());
                 }
             }
-
-            InsertSpaceCommand *command = new InsertSpaceCommand(this, clipsToMove, transitionsToMove, track, timeOffset, false);
-            m_commandStack->push(command);
-            if (track != -1) track = m_document->tracksCount() - track;
-            kDebug() << "SPACER TRACK:" << track;
-            m_document->renderer()->mltInsertSpace(trackClipStartList, trackTransitionStartList, track, timeOffset, GenTime());
+            if (!clipsToMove.isEmpty() || !transitionsToMove.isEmpty()) {
+                InsertSpaceCommand *command = new InsertSpaceCommand(this, clipsToMove, transitionsToMove, track, timeOffset, false);
+                m_commandStack->push(command);
+                if (track != -1) track = m_document->tracksCount() - track;
+                kDebug() << "SPACER TRACK:" << track;
+                m_document->renderer()->mltInsertSpace(trackClipStartList, trackTransitionStartList, track, timeOffset, GenTime());
+                setDocumentModified();
+            }
         }
         resetSelectionGroup(false);
         m_operationMode = NONE;
@@ -2452,7 +3001,6 @@ void CustomTrackView::mouseReleaseEvent(QMouseEvent * event)
 
     if (m_operationMode == MOVE) {
         setCursor(Qt::OpenHandCursor);
-
         if (m_dragItem->parentItem() == 0) {
             // we are moving one clip, easy
             if (m_dragItem->type() == AVWIDGET && (m_dragItemInfo.startPos != info.startPos || m_dragItemInfo.track != info.track)) {
@@ -2461,34 +3009,39 @@ void CustomTrackView::mouseReleaseEvent(QMouseEvent * event)
                 if (item->isAudioOnly()) prod = item->baseClip()->audioProducer(m_dragItemInfo.track);
                 else if (item->isVideoOnly()) prod = item->baseClip()->videoProducer();
                 else prod = item->baseClip()->producer(m_dragItemInfo.track);
-                bool success = m_document->renderer()->mltMoveClip((int)(m_document->tracksCount() - m_dragItemInfo.track), (int)(m_document->tracksCount() - m_dragItem->track()), (int) m_dragItemInfo.startPos.frames(m_document->fps()), (int)(m_dragItem->startPos().frames(m_document->fps())), prod);
+                bool success = m_document->renderer()->mltMoveClip((int)(m_document->tracksCount() - m_dragItemInfo.track), (int)(m_document->tracksCount() - m_dragItem->track()), (int) m_dragItemInfo.startPos.frames(m_document->fps()), (int)(m_dragItem->startPos().frames(m_document->fps())), prod, m_scene->editMode() == OVERWRITEEDIT, m_scene->editMode() == INSERTEDIT);
 
                 if (success) {
+                    QUndoCommand *moveCommand = new QUndoCommand();
+                    moveCommand->setText(i18n("Move clip"));
+                    adjustTimelineClips(m_scene->editMode(), item, ItemInfo(), moveCommand);
+
                     int tracknumber = m_document->tracksCount() - item->track() - 1;
                     bool isLocked = m_document->trackInfoAt(tracknumber).isLocked;
                     if (isLocked) item->setItemLocked(true);
-
-                    QUndoCommand *moveCommand = new QUndoCommand();
-                    moveCommand->setText(i18n("Move clip"));
                     new MoveClipCommand(this, m_dragItemInfo, info, false, moveCommand);
                     // Also move automatic transitions (on lower track)
-                    Transition *tr = getTransitionItemAtStart(m_dragItemInfo.startPos, m_dragItemInfo.track);
-                    if (tr && tr->isAutomatic()) {
-                        ItemInfo trInfo = tr->info();
-                        ItemInfo newTrInfo = trInfo;
-                        newTrInfo.track = info.track;
-                        newTrInfo.startPos = m_dragItem->startPos();
-                        if (m_dragItemInfo.track == info.track && !item->baseClip()->isTransparent() && getClipItemAtEnd(newTrInfo.endPos, m_document->tracksCount() - tr->transitionEndTrack())) {
+                    Transition *startTransition = getTransitionItemAtStart(m_dragItemInfo.startPos, m_dragItemInfo.track);
+                    ItemInfo startTrInfo;
+                    ItemInfo newStartTrInfo;
+                    bool moveStartTrans = false;
+                    bool moveEndTrans = false;
+                    if (startTransition && startTransition->isAutomatic()) {
+                        startTrInfo = startTransition->info();
+                        newStartTrInfo = startTrInfo;
+                        newStartTrInfo.track = info.track;
+                        newStartTrInfo.startPos = info.startPos;
+                        if (m_dragItemInfo.track == info.track && !item->baseClip()->isTransparent() && getClipItemAtEnd(newStartTrInfo.endPos, m_document->tracksCount() - startTransition->transitionEndTrack())) {
                             // transition end should stay the same
                         } else {
                             // transition end should be adjusted to clip
-                            newTrInfo.endPos = newTrInfo.endPos + (newTrInfo.startPos - trInfo.startPos);
+                            newStartTrInfo.endPos = newStartTrInfo.endPos + (newStartTrInfo.startPos - startTrInfo.startPos);
                         }
-                        if (newTrInfo.startPos < newTrInfo.endPos) new MoveTransitionCommand(this, trInfo, newTrInfo, true, moveCommand);
+                        if (newStartTrInfo.startPos < newStartTrInfo.endPos) moveStartTrans = true;
                     }
-                    if (tr == NULL || tr->endPos() < m_dragItemInfo.endPos) {
+                    if (startTransition == NULL || startTransition->endPos() < m_dragItemInfo.endPos) {
                         // Check if there is a transition at clip end
-                        tr = getTransitionItemAtEnd(m_dragItemInfo.endPos, m_dragItemInfo.track);
+                        Transition *tr = getTransitionItemAtEnd(m_dragItemInfo.endPos, m_dragItemInfo.track);
                         if (tr && tr->isAutomatic()) {
                             ItemInfo trInfo = tr->info();
                             ItemInfo newTrInfo = trInfo;
@@ -2500,12 +3053,34 @@ void CustomTrackView::mouseReleaseEvent(QMouseEvent * event)
                                 // transition start should be moved
                                 newTrInfo.startPos = newTrInfo.startPos + (newTrInfo.endPos - trInfo.endPos);
                             }
-                            if (newTrInfo.startPos < newTrInfo.endPos)
+                            if (newTrInfo.startPos < newTrInfo.endPos) {
+                                moveEndTrans = true;
+                                if (moveStartTrans) {
+                                    // we have to move both transitions, remove the start one so that there is no collision
+                                    new AddTransitionCommand(this, startTrInfo, startTransition->transitionEndTrack(), startTransition->toXML(), true, true, moveCommand);
+                                }
+                                adjustTimelineTransitions(m_scene->editMode(), tr, moveCommand);
                                 new MoveTransitionCommand(this, trInfo, newTrInfo, true, moveCommand);
+                                if (moveStartTrans) {
+                                    // re-add transition in correct place
+                                    int transTrack = startTransition->transitionEndTrack();
+                                    if (m_dragItemInfo.track != info.track && !startTransition->forcedTrack()) {
+                                        transTrack = getPreviousVideoTrack(info.track);
+                                    }
+                                    adjustTimelineTransitions(m_scene->editMode(), startTransition, moveCommand);
+                                    new AddTransitionCommand(this, newStartTrInfo, transTrack, startTransition->toXML(), false, true, moveCommand);
+                                }
+                            }
                         }
                     }
+
+                    if (moveStartTrans && !moveEndTrans) {
+                        adjustTimelineTransitions(m_scene->editMode(), startTransition, moveCommand);
+                        new MoveTransitionCommand(this, startTrInfo, newStartTrInfo, true, moveCommand);
+                    }
+
                     // Also move automatic transitions (on upper track)
-                    tr = getTransitionItemAtStart(m_dragItemInfo.startPos, m_dragItemInfo.track - 1);
+                    Transition *tr = getTransitionItemAtStart(m_dragItemInfo.startPos, m_dragItemInfo.track - 1);
                     if (m_dragItemInfo.track == info.track && tr && tr->isAutomatic() && (m_document->tracksCount() - tr->transitionEndTrack()) == m_dragItemInfo.track) {
                         ItemInfo trInfo = tr->info();
                         ItemInfo newTrInfo = trInfo;
@@ -2516,7 +3091,10 @@ void CustomTrackView::mouseReleaseEvent(QMouseEvent * event)
                                 // transition end should be adjusted to clip on upper track
                                 newTrInfo.endPos = newTrInfo.endPos + (newTrInfo.startPos - trInfo.startPos);
                             }
-                            if (newTrInfo.startPos < newTrInfo.endPos) new MoveTransitionCommand(this, trInfo, newTrInfo, true, moveCommand);
+                            if (newTrInfo.startPos < newTrInfo.endPos) {
+                                adjustTimelineTransitions(m_scene->editMode(), tr, moveCommand);
+                                new MoveTransitionCommand(this, trInfo, newTrInfo, true, moveCommand);
+                            }
                         }
                     }
                     if (m_dragItemInfo.track == info.track && (tr == NULL || tr->endPos() < m_dragItemInfo.endPos)) {
@@ -2526,17 +3104,23 @@ void CustomTrackView::mouseReleaseEvent(QMouseEvent * event)
                             ItemInfo trInfo = tr->info();
                             ItemInfo newTrInfo = trInfo;
                             newTrInfo.endPos = m_dragItem->endPos();
+                            kDebug() << "CLIP ENDS AT: " << newTrInfo.endPos.frames(25);
+                            kDebug() << "CLIP STARTS AT: " << newTrInfo.startPos.frames(25);
                             ClipItem * upperClip = getClipItemAt(m_dragItemInfo.startPos, m_dragItemInfo.track - 1);
                             if (!upperClip || !upperClip->baseClip()->isTransparent()) {
                                 if (!getClipItemAtStart(trInfo.startPos, tr->track())) {
                                     // transition start should be moved
                                     newTrInfo.startPos = newTrInfo.startPos + (newTrInfo.endPos - trInfo.endPos);
                                 }
-                                if (newTrInfo.startPos < newTrInfo.endPos) new MoveTransitionCommand(this, trInfo, newTrInfo, true, moveCommand);
+                                if (newTrInfo.startPos < newTrInfo.endPos) {
+                                    adjustTimelineTransitions(m_scene->editMode(), tr, moveCommand);
+                                    new MoveTransitionCommand(this, trInfo, newTrInfo, true, moveCommand);
+                                }
                             }
                         }
                     }
                     m_commandStack->push(moveCommand);
+                    //checkTrackSequence(m_dragItem->track());
                 } else {
                     // undo last move and emit error message
                     bool snap = KdenliveSettings::snaptopoints();
@@ -2549,14 +3133,18 @@ void CustomTrackView::mouseReleaseEvent(QMouseEvent * event)
             }
             if (m_dragItem->type() == TRANSITIONWIDGET && (m_dragItemInfo.startPos != info.startPos || m_dragItemInfo.track != info.track)) {
                 Transition *transition = static_cast <Transition *>(m_dragItem);
+                transition->updateTransitionEndTrack(getPreviousVideoTrack(m_dragItem->track()));
                 if (!m_document->renderer()->mltMoveTransition(transition->transitionTag(), (int)(m_document->tracksCount() - m_dragItemInfo.track), (int)(m_document->tracksCount() - m_dragItem->track()), transition->transitionEndTrack(), m_dragItemInfo.startPos, m_dragItemInfo.endPos, info.startPos, info.endPos)) {
                     // Moving transition failed, revert to previous position
                     emit displayMessage(i18n("Cannot move transition"), ErrorMessage);
                     transition->setPos((int) m_dragItemInfo.startPos.frames(m_document->fps()), (m_dragItemInfo.track) * m_tracksHeight + 1);
                 } else {
-                    MoveTransitionCommand *command = new MoveTransitionCommand(this, m_dragItemInfo, info, false);
-                    m_commandStack->push(command);
-                    transition->updateTransitionEndTrack(getPreviousVideoTrack(m_dragItem->track()));
+                    QUndoCommand *moveCommand = new QUndoCommand();
+                    moveCommand->setText(i18n("Move transition"));
+                    adjustTimelineTransitions(m_scene->editMode(), transition, moveCommand);
+                    new MoveTransitionCommand(this, m_dragItemInfo, info, false, moveCommand);
+                    m_commandStack->push(moveCommand);
+                    setDocumentModified();
                 }
             }
         } else {
@@ -2571,6 +3159,8 @@ void CustomTrackView::mouseReleaseEvent(QMouseEvent * event)
             GenTime timeOffset = GenTime(m_dragItem->scenePos().x(), m_document->fps()) - m_dragItemInfo.startPos;
             const int trackOffset = (int)(m_dragItem->scenePos().y() / m_tracksHeight) - m_dragItemInfo.track;
             //kDebug() << "// MOVED SEVERAL CLIPS" << timeOffset.frames(25);
+            QUndoCommand *moveGroup = new QUndoCommand();
+            moveGroup->setText(i18n("Move group"));
             if (timeOffset != GenTime() || trackOffset != 0) {
                 // remove items in MLT playlist
 
@@ -2581,7 +3171,7 @@ void CustomTrackView::mouseReleaseEvent(QMouseEvent * event)
                         items += items.at(i)->childItems();
                     }
                 }
-
+                m_document->renderer()->blockSignals(true);
                 for (int i = 0; i < items.count(); i++) {
                     if (items.at(i)->type() != AVWIDGET && items.at(i)->type() != TRANSITIONWIDGET) continue;
                     AbstractClipItem *item = static_cast <AbstractClipItem *>(items.at(i));
@@ -2599,7 +3189,7 @@ void CustomTrackView::mouseReleaseEvent(QMouseEvent * event)
                         m_document->renderer()->mltDeleteTransition(tr->transitionTag(), tr->transitionEndTrack(), m_document->tracksCount() - info.track, info.startPos, info.endPos, tr->toXML());
                     }
                 }
-
+                m_document->renderer()->blockSignals(false);
                 for (int i = 0; i < items.count(); i++) {
                     // re-add items in correct place
                     if (items.at(i)->type() != AVWIDGET && items.at(i)->type() != TRANSITIONWIDGET) continue;
@@ -2617,10 +3207,14 @@ void CustomTrackView::mouseReleaseEvent(QMouseEvent * event)
                         ClipItem *clip = static_cast <ClipItem*>(item);
                         info.track = m_document->tracksCount() - info.track;
                         Mlt::Producer *prod;
-                        if (clip->isAudioOnly()) prod = clip->baseClip()->audioProducer(info.track);
-                        else if (clip->isVideoOnly()) prod = clip->baseClip()->videoProducer();
-                        else prod = clip->baseClip()->producer(info.track);
-                        m_document->renderer()->mltInsertClip(info, clip->xml(), prod);
+                        adjustTimelineClips(m_scene->editMode(), clip, ItemInfo(), moveGroup);
+                        if (clip->isAudioOnly())
+                            prod = clip->baseClip()->audioProducer(info.track);
+                        else if (clip->isVideoOnly())
+                            prod = clip->baseClip()->videoProducer();
+                        else
+                            prod = clip->baseClip()->producer(info.track);
+                        m_document->renderer()->mltInsertClip(info, clip->xml(), prod, m_scene->editMode() == OVERWRITEEDIT, m_scene->editMode() == INSERTEDIT);
                         for (int i = 0; i < clip->effectsCount(); i++) {
                             m_document->renderer()->mltAddEffect(info.track, info.startPos, clip->getEffectArgs(clip->effectAt(i)), false);
                         }
@@ -2631,12 +3225,12 @@ void CustomTrackView::mouseReleaseEvent(QMouseEvent * event)
                             newTrack = getPreviousVideoTrack(info.track);
                         }
                         tr->updateTransitionEndTrack(newTrack);
+                        adjustTimelineTransitions(m_scene->editMode(), tr, moveGroup);
                         m_document->renderer()->mltAddTransition(tr->transitionTag(), newTrack, m_document->tracksCount() - info.track, info.startPos, info.endPos, tr->toXML());
                     }
                 }
-
-                MoveGroupCommand *move = new MoveGroupCommand(this, clipsToMove, transitionsToMove, timeOffset, trackOffset, false);
-                m_commandStack->push(move);
+                new MoveGroupCommand(this, clipsToMove, transitionsToMove, timeOffset, trackOffset, false, moveGroup);
+                m_commandStack->push(moveGroup);
 
                 //QPointF top = group->sceneBoundingRect().topLeft();
                 //QPointF oldpos = m_selectionGroup->scenePos();
@@ -2646,6 +3240,8 @@ void CustomTrackView::mouseReleaseEvent(QMouseEvent * event)
                 if (m_selectionGroup) {
                     m_selectionGroupInfo.startPos = GenTime(m_selectionGroup->scenePos().x(), m_document->fps());
                     m_selectionGroupInfo.track = m_selectionGroup->track();
+                } else {
+                    rebuildGroup((AbstractGroupItem *)group);
                 }
                 setDocumentModified();
             }
@@ -2653,136 +3249,63 @@ void CustomTrackView::mouseReleaseEvent(QMouseEvent * event)
         m_document->renderer()->doRefresh();
     } else if (m_operationMode == RESIZESTART && m_dragItem->startPos() != m_dragItemInfo.startPos) {
         // resize start
-        if (m_dragItem->type() == AVWIDGET) {
-            ItemInfo resizeinfo = m_dragItemInfo;
-            resizeinfo.track = m_document->tracksCount() - resizeinfo.track;
-            bool success = m_document->renderer()->mltResizeClipStart(resizeinfo, m_dragItem->startPos() - m_dragItemInfo.startPos);
-            if (success) {
+        if (event->modifiers() != Qt::ControlModifier && m_dragItem->type() == AVWIDGET && m_dragItem->parentItem() && m_dragItem->parentItem() != m_selectionGroup) {
+            AbstractGroupItem *parent = static_cast <AbstractGroupItem *>(m_dragItem->parentItem());
+            if (parent) {
                 QUndoCommand *resizeCommand = new QUndoCommand();
-                resizeCommand->setText(i18n("Resize clip"));
-
-                // Check if there is an automatic transition on that clip (lower track)
-                Transition *transition = getTransitionItemAtStart(m_dragItemInfo.startPos, m_dragItemInfo.track);
-                if (transition && transition->isAutomatic()) {
-                    ItemInfo trInfo = transition->info();
-                    ItemInfo newTrInfo = trInfo;
-                    newTrInfo.startPos = m_dragItem->startPos();
-                    if (newTrInfo.startPos < newTrInfo.endPos)
-                        new MoveTransitionCommand(this, trInfo, newTrInfo, true, resizeCommand);
-                }
-                // Check if there is an automatic transition on that clip (upper track)
-                transition = getTransitionItemAtStart(m_dragItemInfo.startPos, m_dragItemInfo.track - 1);
-                if (transition && transition->isAutomatic() && (m_document->tracksCount() - transition->transitionEndTrack()) == m_dragItemInfo.track) {
-                    ItemInfo trInfo = transition->info();
-                    ItemInfo newTrInfo = trInfo;
-                    newTrInfo.startPos = m_dragItem->startPos();
-                    ClipItem * upperClip = getClipItemAt(m_dragItemInfo.startPos, m_dragItemInfo.track - 1);
-                    if ((!upperClip || !upperClip->baseClip()->isTransparent()) && newTrInfo.startPos < newTrInfo.endPos) {
-                        new MoveTransitionCommand(this, trInfo, newTrInfo, true, resizeCommand);
+                resizeCommand->setText(i18n("Resize group"));
+                QList <QGraphicsItem *> items = parent->childItems();
+                QList <ItemInfo> infos = parent->resizeInfos();
+                parent->clearResizeInfos();
+                int itemcount = 0;
+                for (int i = 0; i < items.count(); ++i) {
+                    AbstractClipItem *item = static_cast<AbstractClipItem *>(items.at(i));
+                    if (item && item->type() == AVWIDGET) {
+                        ItemInfo info = infos.at(itemcount);
+                        prepareResizeClipStart(item, info, item->startPos().frames(m_document->fps()), false, resizeCommand);
+                        ++itemcount;
                     }
                 }
-                updateClipFade(static_cast <ClipItem *>(m_dragItem));
-                new ResizeClipCommand(this, m_dragItemInfo, info, false, resizeCommand);
                 m_commandStack->push(resizeCommand);
-            } else {
-                m_dragItem->resizeStart((int) m_dragItemInfo.startPos.frames(m_document->fps()));
-                emit displayMessage(i18n("Error when resizing clip"), ErrorMessage);
-            }
-        } else if (m_dragItem->type() == TRANSITIONWIDGET) {
-            Transition *transition = static_cast <Transition *>(m_dragItem);
-            if (!m_document->renderer()->mltMoveTransition(transition->transitionTag(), (int)(m_document->tracksCount() - m_dragItemInfo.track), (int)(m_document->tracksCount() - m_dragItemInfo.track), transition->transitionEndTrack(), m_dragItemInfo.startPos, m_dragItemInfo.endPos, info.startPos, info.endPos)) {
-                // Cannot resize transition
-                transition->resizeStart((int) m_dragItemInfo.startPos.frames(m_document->fps()));
-                emit displayMessage(i18n("Cannot resize transition"), ErrorMessage);
-            } else {
-                MoveTransitionCommand *command = new MoveTransitionCommand(this, m_dragItemInfo, info, false);
-                m_commandStack->push(command);
-            }
-
-        }
-        if (m_dragItem->parentItem() && m_dragItem->parentItem() != m_selectionGroup) {
-            // Item was resized, rebuild group;
-            AbstractGroupItem *group = static_cast <AbstractGroupItem *>(m_dragItem->parentItem());
-            QList <QGraphicsItem *> children = group->childItems();
-            m_document->clipManager()->removeGroup(group);
-            scene()->destroyItemGroup(group);
-            for (int i = 0; i < children.count(); i++) {
-                children.at(i)->setSelected(true);
             }
-            groupSelectedItems(false, true);
+        } else {
+            prepareResizeClipStart(m_dragItem, m_dragItemInfo, m_dragItem->startPos().frames(m_document->fps()));
         }
-        //m_document->renderer()->doRefresh();
     } else if (m_operationMode == RESIZEEND && m_dragItem->endPos() != m_dragItemInfo.endPos) {
         // resize end
-        if (m_dragItem->type() == AVWIDGET) {
-            ItemInfo resizeinfo = info;
-            resizeinfo.track = m_document->tracksCount() - resizeinfo.track;
-            bool success = m_document->renderer()->mltResizeClipEnd(resizeinfo, resizeinfo.endPos - resizeinfo.startPos);
-            if (success) {
+        if (event->modifiers() != Qt::ControlModifier && m_dragItem->type() == AVWIDGET && m_dragItem->parentItem() && m_dragItem->parentItem() != m_selectionGroup) {
+            AbstractGroupItem *parent = static_cast <AbstractGroupItem *>(m_dragItem->parentItem());
+            if (parent) {
                 QUndoCommand *resizeCommand = new QUndoCommand();
-                resizeCommand->setText(i18n("Resize clip"));
-
-                // Check if there is an automatic transition on that clip (lower track)
-                Transition *tr = getTransitionItemAtEnd(m_dragItemInfo.endPos, m_dragItemInfo.track);
-                if (tr && tr->isAutomatic()) {
-                    ItemInfo trInfo = tr->info();
-                    ItemInfo newTrInfo = trInfo;
-                    newTrInfo.endPos = m_dragItem->endPos();
-                    if (newTrInfo.endPos > newTrInfo.startPos) new MoveTransitionCommand(this, trInfo, newTrInfo, true, resizeCommand);
-                }
-
-                // Check if there is an automatic transition on that clip (upper track)
-                tr = getTransitionItemAtEnd(m_dragItemInfo.endPos, m_dragItemInfo.track - 1);
-                if (tr && tr->isAutomatic() && (m_document->tracksCount() - tr->transitionEndTrack()) == m_dragItemInfo.track) {
-                    ItemInfo trInfo = tr->info();
-                    ItemInfo newTrInfo = trInfo;
-                    newTrInfo.endPos = m_dragItem->endPos();
-                    ClipItem * upperClip = getClipItemAtEnd(m_dragItemInfo.endPos, m_dragItemInfo.track - 1);
-                    if ((!upperClip || !upperClip->baseClip()->isTransparent()) && newTrInfo.endPos > newTrInfo.startPos) {
-                        new MoveTransitionCommand(this, trInfo, newTrInfo, true, resizeCommand);
+                resizeCommand->setText(i18n("Resize group"));
+                QList <QGraphicsItem *> items = parent->childItems();
+                QList <ItemInfo> infos = parent->resizeInfos();
+                parent->clearResizeInfos();
+                int itemcount = 0;
+                for (int i = 0; i < items.count(); ++i) {
+                    AbstractClipItem *item = static_cast<AbstractClipItem *>(items.at(i));
+                    if (item && item->type() == AVWIDGET) {
+                        ItemInfo info = infos.at(itemcount);
+                        prepareResizeClipEnd(item, info, item->endPos().frames(m_document->fps()), false, resizeCommand);
+                        ++itemcount;
                     }
                 }
-
-                new ResizeClipCommand(this, m_dragItemInfo, info, false, resizeCommand);
                 m_commandStack->push(resizeCommand);
-                updateClipFade(static_cast <ClipItem *>(m_dragItem));
-            } else {
-                m_dragItem->resizeEnd((int) m_dragItemInfo.endPos.frames(m_document->fps()));
-                emit displayMessage(i18n("Error when resizing clip"), ErrorMessage);
-            }
-        } else if (m_dragItem->type() == TRANSITIONWIDGET) {
-            Transition *transition = static_cast <Transition *>(m_dragItem);
-            if (!m_document->renderer()->mltMoveTransition(transition->transitionTag(), (int)(m_document->tracksCount() - m_dragItemInfo.track), (int)(m_document->tracksCount() - m_dragItemInfo.track), 0, m_dragItemInfo.startPos, m_dragItemInfo.endPos, info.startPos, info.endPos)) {
-                // Cannot resize transition
-                transition->resizeEnd((int) m_dragItemInfo.endPos.frames(m_document->fps()));
-                emit displayMessage(i18n("Cannot resize transition"), ErrorMessage);
-            } else {
-                MoveTransitionCommand *command = new MoveTransitionCommand(this, m_dragItemInfo, info, false);
-                m_commandStack->push(command);
             }
+        } else {
+            prepareResizeClipEnd(m_dragItem, m_dragItemInfo, m_dragItem->endPos().frames(m_document->fps()));
         }
-        if (m_dragItem->parentItem() && m_dragItem->parentItem() != m_selectionGroup) {
-            // Item was resized, rebuild group;
-            AbstractGroupItem *group = static_cast <AbstractGroupItem *>(m_dragItem->parentItem());
-            QList <QGraphicsItem *> children = group->childItems();
-            m_document->clipManager()->removeGroup(group);
-            scene()->destroyItemGroup(group);
-            for (int i = 0; i < children.count(); i++) {
-                children.at(i)->setSelected(true);
-            }
-            groupSelectedItems(false, true);
-        }
-        //m_document->renderer()->doRefresh();
     } else if (m_operationMode == FADEIN) {
         // resize fade in effect
         ClipItem * item = static_cast <ClipItem *>(m_dragItem);
         int ix = item->hasEffect("volume", "fadein");
+        int ix2 = item->hasEffect("", "fade_from_black");
         if (ix != -1) {
-            QDomElement oldeffect = item->effectAt(ix).cloneNode().toElement();
+            QDomElement oldeffect = item->effectAt(ix);
             int start = item->cropStart().frames(m_document->fps());
             int end = item->fadeIn();
             if (end == 0) {
-                slotDeleteEffect(item, oldeffect);
+                slotDeleteEffect(item, oldeffect, false);
             } else {
                 end += start;
                 QDomElement effect = oldeffect.cloneNode().toElement();
@@ -2791,37 +3314,41 @@ void CustomTrackView::mouseReleaseEvent(QMouseEvent * event)
                 slotUpdateClipEffect(item, effect, oldeffect, ix);
                 emit clipItemSelected(item, ix);
             }
-        } else if (item->fadeIn() != 0 && item->hasEffect("", "fade_from_black") == -1) {
-            QDomElement effect = MainWindow::audioEffects.getEffectByTag("volume", "fadein").cloneNode().toElement();
+        } else if (item->fadeIn() != 0 && ix2 == -1) {
+            QDomElement effect;
+            if (item->isVideoOnly() || (item->clipType() != AUDIO && item->clipType() != AV && item->clipType() != PLAYLIST)) {
+                // add video fade
+                effect = MainWindow::videoEffects.getEffectByTag("", "fade_from_black").cloneNode().toElement();
+            } else effect = MainWindow::audioEffects.getEffectByTag("volume", "fadein").cloneNode().toElement();
             EffectsList::setParameter(effect, "out", QString::number(item->fadeIn()));
             slotAddEffect(effect, m_dragItem->startPos(), m_dragItem->track());
         }
-        ix = item->hasEffect("volume", "fade_from_black");
-        if (ix != -1) {
-            QDomElement oldeffect = item->effectAt(ix).cloneNode().toElement();
+        if (ix2 != -1) {
+            QDomElement oldeffect = item->effectAt(ix2);
             int start = item->cropStart().frames(m_document->fps());
             int end = item->fadeIn();
             if (end == 0) {
-                slotDeleteEffect(item, oldeffect);
+                slotDeleteEffect(item, oldeffect, false);
             } else {
                 end += start;
                 QDomElement effect = oldeffect.cloneNode().toElement();
                 EffectsList::setParameter(oldeffect, "in", QString::number(start));
                 EffectsList::setParameter(oldeffect, "out", QString::number(end));
-                slotUpdateClipEffect(item, effect, oldeffect, ix);
-                emit clipItemSelected(item, ix);
+                slotUpdateClipEffect(item, effect, oldeffect, ix2);
+                emit clipItemSelected(item, ix2);
             }
         }
     } else if (m_operationMode == FADEOUT) {
         // resize fade in effect
         ClipItem * item = static_cast <ClipItem *>(m_dragItem);
         int ix = item->hasEffect("volume", "fadeout");
+        int ix2 = item->hasEffect("", "fade_to_black");
         if (ix != -1) {
-            QDomElement oldeffect = item->effectAt(ix).cloneNode().toElement();
+            QDomElement oldeffect = item->effectAt(ix);
             int end = (item->cropDuration() + item->cropStart()).frames(m_document->fps());
             int start = item->fadeOut();
             if (start == 0) {
-                slotDeleteEffect(item, oldeffect);
+                slotDeleteEffect(item, oldeffect, false);
             } else {
                 start = end - start;
                 QDomElement effect = oldeffect.cloneNode().toElement();
@@ -2831,36 +3358,58 @@ void CustomTrackView::mouseReleaseEvent(QMouseEvent * event)
                 slotUpdateClipEffect(item, effect, oldeffect, ix);
                 emit clipItemSelected(item, ix);
             }
-        } else if (item->fadeOut() != 0 && item->hasEffect("", "fade_to_black") == -1) {
-            QDomElement effect = MainWindow::audioEffects.getEffectByTag("volume", "fadeout").cloneNode().toElement();
+        } else if (item->fadeOut() != 0 && ix2 == -1) {
+            QDomElement effect;
+            if (item->isVideoOnly() || (item->clipType() != AUDIO && item->clipType() != AV && item->clipType() != PLAYLIST)) {
+                // add video fade
+                effect = MainWindow::videoEffects.getEffectByTag("", "fade_to_black").cloneNode().toElement();
+            } else effect = MainWindow::audioEffects.getEffectByTag("volume", "fadeout").cloneNode().toElement();
             EffectsList::setParameter(effect, "in", QString::number(item->fadeOut()));
             EffectsList::setParameter(effect, "out", QString::number(0));
             slotAddEffect(effect, m_dragItem->startPos(), m_dragItem->track());
         }
-        ix = item->hasEffect("brightness", "fade_to_black");
-        if (ix != -1) {
-            QDomElement oldeffect = item->effectAt(ix).cloneNode().toElement();
+        if (ix2 != -1) {
+            QDomElement oldeffect = item->effectAt(ix2);
             int end = (item->cropDuration() + item->cropStart()).frames(m_document->fps());
             int start = item->fadeOut();
             if (start == 0) {
-                slotDeleteEffect(item, oldeffect);
+                slotDeleteEffect(item, oldeffect, false);
             } else {
                 start = end - start;
                 QDomElement effect = oldeffect.cloneNode().toElement();
                 EffectsList::setParameter(oldeffect, "in", QString::number(start));
                 EffectsList::setParameter(oldeffect, "out", QString::number(end));
                 // kDebug()<<"EDIT FADE OUT : "<<start<<"x"<<end;
-                slotUpdateClipEffect(item, effect, oldeffect, ix);
-                emit clipItemSelected(item, ix);
+                slotUpdateClipEffect(item, effect, oldeffect, ix2);
+                emit clipItemSelected(item, ix2);
             }
         }
     } else if (m_operationMode == KEYFRAME) {
         // update the MLT effect
         ClipItem * item = static_cast <ClipItem *>(m_dragItem);
-        QString previous = item->keyframes(item->selectedEffectIndex());
-        item->updateKeyframeEffect();
-        QString next = item->keyframes(item->selectedEffectIndex());
-        EditKeyFrameCommand *command = new EditKeyFrameCommand(this, item->track(), item->startPos(), item->selectedEffectIndex(), previous, next, false);
+        QDomElement oldEffect = item->selectedEffect().cloneNode().toElement();
+
+        // check if we want to remove keyframe
+        double val = mapToScene(event->pos()).toPoint().y();
+        QRectF br = item->sceneBoundingRect();
+        double maxh = 100.0 / br.height();
+        val = (br.bottom() - val) * maxh;
+        int start = item->cropStart().frames(m_document->fps());
+        int end = (item->cropStart() + item->cropDuration()).frames(m_document->fps()) - 1;
+
+        if ((val < -50 || val > 150) && item->editedKeyFramePos() != start && item->editedKeyFramePos() != end) {
+            //delete keyframe
+            item->movedKeyframe(item->getEffectAt(item->selectedEffectIndex()), item->selectedKeyFramePos(), -1, 0);
+        } else {
+            item->movedKeyframe(item->getEffectAt(item->selectedEffectIndex()), item->selectedKeyFramePos(), item->editedKeyFramePos(), item->editedKeyFrameValue());
+        }
+
+        QDomElement newEffect = item->selectedEffect().cloneNode().toElement();
+        //item->updateKeyframeEffect();
+        //QString next = item->keyframes(item->selectedEffectIndex());
+        //EditKeyFrameCommand *command = new EditKeyFrameCommand(this, item->track(), item->startPos(), item->selectedEffectIndex(), previous, next, false);
+        EditEffectCommand *command = new EditEffectCommand(this, m_document->tracksCount() - item->track(), item->startPos(), oldEffect, newEffect, item->selectedEffectIndex(), false);
+
         m_commandStack->push(command);
         updateEffect(m_document->tracksCount() - item->track(), item->startPos(), item->selectedEffect(), item->selectedEffectIndex());
         emit clipItemSelected(item, item->selectedEffectIndex());
@@ -2872,6 +3421,7 @@ void CustomTrackView::mouseReleaseEvent(QMouseEvent * event)
         if (transitionClip && transitionClip->baseClip()) {
             QString size = transitionClip->baseClip()->getProperty("frame_size");
             double factor = transitionClip->baseClip()->getProperty("aspect_ratio").toDouble();
+            if (factor == 0) factor = 1.0;
             p.setX((int)(size.section('x', 0, 0).toInt() * factor + 0.5));
             p.setY(size.section('x', 1, 1).toInt());
         }
@@ -2881,7 +3431,7 @@ void CustomTrackView::mouseReleaseEvent(QMouseEvent * event)
     m_operationMode = NONE;
 }
 
-void CustomTrackView::deleteClip(ItemInfo info)
+void CustomTrackView::deleteClip(ItemInfo info, bool refresh)
 {
     ClipItem *item = getClipItemAt((int) info.startPos.frames(m_document->fps()), info.track);
 
@@ -2902,13 +3452,25 @@ void CustomTrackView::deleteClip(ItemInfo info)
             delete tr;
         }
     }*/
-    scene()->removeItem(item);
     m_waitingThumbs.removeAll(item);
     if (m_dragItem == item) m_dragItem = NULL;
+#if QT_VERSION >= 0x040600
+    // animate item deletion
+    item->closeAnimation();
+    /*if (refresh) item->closeAnimation();
+    else {
+        // no refresh, means we have several operations chained, we need to delete clip immediatly
+        // so that it does not get in the way of the other
+        delete item;
+        item = NULL;
+    }*/
+#else
     delete item;
     item = NULL;
+#endif
+
     setDocumentModified();
-    m_document->renderer()->doRefresh();
+    if (refresh) m_document->renderer()->doRefresh();
 }
 
 void CustomTrackView::deleteSelectedClips()
@@ -2921,14 +3483,16 @@ void CustomTrackView::deleteSelectedClips()
     }
     scene()->clearSelection();
     QUndoCommand *deleteSelected = new QUndoCommand();
-    deleteSelected->setText(i18n("Delete selected items"));
-    bool resetGroup = false;
 
+    bool resetGroup = false;
+    int groupCount = 0;
+    int clipCount = 0;
+    int transitionCount = 0;
     // expand & destroy groups
     for (int i = 0; i < itemList.count(); i++) {
         if (itemList.at(i)->type() == GROUPWIDGET) {
+            groupCount++;
             QList<QGraphicsItem *> children = itemList.at(i)->childItems();
-            itemList += children;
             QList <ItemInfo> clipInfos;
             QList <ItemInfo> transitionInfos;
             GenTime currentPos = GenTime(m_cursorPos, m_document->fps());
@@ -2940,21 +3504,29 @@ void CustomTrackView::deleteSelectedClips()
                     AbstractClipItem *clip = static_cast <AbstractClipItem *>(children.at(j));
                     if (!clip->isItemLocked()) transitionInfos.append(clip->info());
                 }
+                if (itemList.contains(children.at(j))) {
+                    children.removeAt(j);
+                    j--;
+                }
             }
-            if (clipInfos.count() > 0) {
+            itemList += children;
+            if (clipInfos.count() > 0)
                 new GroupClipsCommand(this, clipInfos, transitionInfos, false, deleteSelected);
-            }
-        }
+
+        } else if (itemList.at(i)->parentItem() && itemList.at(i)->parentItem()->type() == GROUPWIDGET)
+            itemList.insert(i + 1, itemList.at(i)->parentItem());
     }
 
     for (int i = 0; i < itemList.count(); i++) {
         if (itemList.at(i)->type() == AVWIDGET) {
+            clipCount++;
             ClipItem *item = static_cast <ClipItem *>(itemList.at(i));
             if (item->parentItem()) resetGroup = true;
             //kDebug()<<"// DELETE CLP AT: "<<item->info().startPos.frames(25);
-            new AddTimelineClipCommand(this, item->xml(), item->clipProducer(), item->info(), item->effectList(), true, true, deleteSelected);
+            new AddTimelineClipCommand(this, item->xml(), item->clipProducer(), item->info(), item->effectList(), false, false, true, true, deleteSelected);
             emit clipItemSelected(NULL);
         } else if (itemList.at(i)->type() == TRANSITIONWIDGET) {
+            transitionCount++;
             Transition *item = static_cast <Transition *>(itemList.at(i));
             //kDebug()<<"// DELETE TRANS AT: "<<item->info().startPos.frames(25);
             if (item->parentItem()) resetGroup = true;
@@ -2962,7 +3534,13 @@ void CustomTrackView::deleteSelectedClips()
             emit transitionItemSelected(NULL);
         }
     }
-
+    if (groupCount > 0 && clipCount == 0 && transitionCount == 0)
+        deleteSelected->setText(i18np("Delete selected group", "Delete selected groups", groupCount));
+    else if (clipCount > 0 && groupCount == 0 && transitionCount == 0)
+        deleteSelected->setText(i18np("Delete selected clip", "Delete selected clips", clipCount));
+    else if (transitionCount > 0 && groupCount == 0 && clipCount == 0)
+        deleteSelected->setText(i18np("Delete selected transition", "Delete selected transitions", transitionCount));
+    else deleteSelected->setText(i18n("Delete selected items"));
     m_commandStack->push(deleteSelected);
 }
 
@@ -2995,7 +3573,7 @@ void CustomTrackView::changeClipSpeed()
     else delete changeSelected;
 }
 
-void CustomTrackView::doChangeClipSpeed(ItemInfo info, const double speed, const double oldspeed, int strobe, const QString &id)
+void CustomTrackView::doChangeClipSpeed(ItemInfo info, ItemInfo speedIndependantInfo, const double speed, const double oldspeed, int strobe, const QString &id)
 {
     DocClipBase *baseclip = m_document->clipManager()->getClipById(id);
     ClipItem *item = getClipItemAt((int) info.startPos.frames(m_document->fps()), info.track);
@@ -3005,12 +3583,17 @@ void CustomTrackView::doChangeClipSpeed(ItemInfo info, const double speed, const
         return;
     }
     info.track = m_document->tracksCount() - item->track();
-    int endPos = m_document->renderer()->mltChangeClipSpeed(info, speed, oldspeed, strobe, baseclip->producer());
+    int endPos;
+    if (item->isVideoOnly()) endPos = m_document->renderer()->mltChangeClipSpeed(info, speedIndependantInfo, speed, oldspeed, strobe, baseclip->videoProducer());
+    else if (item->isAudioOnly()) endPos = m_document->renderer()->mltChangeClipSpeed(info, speedIndependantInfo, speed, oldspeed, strobe, baseclip->audioProducer(item->track()));
+    else endPos = m_document->renderer()->mltChangeClipSpeed(info, speedIndependantInfo, speed, oldspeed, strobe, baseclip->producer());
     if (endPos >= 0) {
         item->setSpeed(speed, strobe);
         item->updateRectGeometry();
-        if (item->cropDuration().frames(m_document->fps()) > endPos)
-            item->AbstractClipItem::resizeEnd(info.startPos.frames(m_document->fps()) + endPos, speed);
+        if (item->cropDuration().frames(m_document->fps()) != endPos) {
+            item->resizeEnd((int) info.startPos.frames(m_document->fps()) + endPos - 1);
+        }
+        updatePositionEffects(item, info);
         setDocumentModified();
     } else emit displayMessage(i18n("Invalid clip"), ErrorMessage);
 }
@@ -3019,16 +3602,100 @@ void CustomTrackView::cutSelectedClips()
 {
     QList<QGraphicsItem *> itemList = scene()->selectedItems();
     GenTime currentPos = GenTime(m_cursorPos, m_document->fps());
-    for (int i = 0; i < itemList.count(); i++) {
+    QList <QGraphicsItem *> skipList;
+    for (int i = 0; i < itemList.count(); ++i) {
+        if (skipList.indexOf(itemList.at(i)) != -1)
+            continue;
         if (itemList.at(i)->type() == AVWIDGET) {
             ClipItem *item = static_cast <ClipItem *>(itemList.at(i));
             if (item->parentItem() && item->parentItem() != m_selectionGroup) {
-                emit displayMessage(i18n("Cannot cut a clip in a group"), ErrorMessage);
-            } else if (currentPos > item->startPos() && currentPos <  item->endPos()) {
+                skipList.append(item->parentItem()->childItems());
+                razorGroup((AbstractGroupItem *)item->parentItem(), currentPos);
+            } else if (currentPos > item->startPos() && currentPos < item->endPos()) {
                 RazorClipCommand *command = new RazorClipCommand(this, item->info(), currentPos);
                 m_commandStack->push(command);
             }
+        } else if (itemList.at(i)->type() == GROUPWIDGET && itemList.at(i) != m_selectionGroup) {
+            skipList.append(itemList.at(i)->childItems());
+            razorGroup((AbstractGroupItem *)itemList.at(i), currentPos);
+        }
+    }
+}
+
+void CustomTrackView::razorGroup(AbstractGroupItem* group, GenTime cutPos)
+{
+    if (group) {
+        QList <QGraphicsItem *> children = group->childItems();
+        QList <ItemInfo> clips1, transitions1;
+        QList <ItemInfo> clipsCut, transitionsCut;
+        QList <ItemInfo> clips2, transitions2;
+        for (int i = 0; i < children.count(); ++i) {
+            children.at(i)->setSelected(false);
+            AbstractClipItem *child = static_cast <AbstractClipItem *>(children.at(i));
+            if (child->type() == AVWIDGET) {
+                if (cutPos > child->endPos())
+                    clips1 << child->info();
+                else if (cutPos < child->startPos())
+                    clips2 << child->info();
+                else
+                    clipsCut << child->info();
+            } else {
+                if (cutPos > child->endPos())
+                    transitions1 << child->info();
+                else if (cutPos < child->startPos())
+                    transitions2 << child->info();
+                else
+                    transitionsCut << child->info();
+            }
+        }
+        if (clipsCut.isEmpty() && transitionsCut.isEmpty() && ((clips1.isEmpty() && transitions1.isEmpty()) || (clips2.isEmpty() && transitions2.isEmpty())))
+            return;
+        RazorGroupCommand *command = new RazorGroupCommand(this, clips1, transitions1, clipsCut, transitionsCut, clips2, transitions2, cutPos);
+        m_commandStack->push(command);
+    }
+}
+
+void CustomTrackView::slotRazorGroup(QList <ItemInfo> clips1, QList <ItemInfo> transitions1, QList <ItemInfo> clipsCut, QList <ItemInfo> transitionsCut, QList <ItemInfo> clips2, QList <ItemInfo> transitions2, GenTime cutPos, bool cut)
+{
+    if (cut) {
+        for (int i = 0; i < clipsCut.count(); ++i) {
+            ClipItem *clip = getClipItemAt(clipsCut.at(i).startPos.frames(m_document->fps()), clipsCut.at(i).track);
+            if (clip) {
+                ClipItem *clipBehind = cutClip(clipsCut.at(i), cutPos, true);
+                clips1 << clip->info();
+                if (clipBehind != NULL)
+                    clips2 << clipBehind->info();
+            }
+        }
+        /* TODO: cut transitionsCut
+         * For now just append them to group1 */
+        transitions1 << transitionsCut;
+        doGroupClips(clips1, transitions1, true);
+        doGroupClips(clips2, transitions2, true);
+    } else {
+        /* we might also just use clipsCut.at(0)->parentItem().
+         * Do this loop just in case something went wrong during cut */
+        for (int i = 0; i < clipsCut.count(); ++i) {
+            ClipItem *clip = getClipItemAt(cutPos.frames(m_document->fps()), clipsCut.at(i).track);
+            if (clip && clip->parentItem() && clip->parentItem()->type() == GROUPWIDGET) {
+                AbstractGroupItem *group = static_cast <AbstractGroupItem *>(clip->parentItem());
+                QList <QGraphicsItem *> children = group->childItems();
+                QList <ItemInfo> groupClips;
+                QList <ItemInfo> groupTrans;
+                for (int j = 0; j < children.count(); ++j) {
+                    if (children.at(j)->type() == AVWIDGET)
+                        groupClips << ((AbstractClipItem *)children.at(j))->info();
+                    else if (children.at(j)->type() == TRANSITIONWIDGET)
+                        groupTrans << ((AbstractClipItem *)children.at(j))->info();
+                }
+                doGroupClips(groupClips, groupTrans, false);
+                break;
+            }
         }
+        for (int i = 0; i < clipsCut.count(); ++i)
+            cutClip(clipsCut.at(i), cutPos, false);
+        // TODO: uncut transitonsCut
+        doGroupClips(QList <ItemInfo>() << clips1 << clipsCut << clips2, QList <ItemInfo>() << transitions1 << transitionsCut << transitions2, true);
     }
 }
 
@@ -3075,7 +3742,7 @@ void CustomTrackView::doGroupClips(QList <ItemInfo> clipInfos, QList <ItemInfo>
                 m_document->clipManager()->removeGroup(grp);
                 scene()->destroyItemGroup(grp);
             }
-            clip->setFlags(QGraphicsItem::ItemIsMovable | QGraphicsItem::ItemIsSelectable);
+            clip->setFlag(QGraphicsItem::ItemIsMovable, true);
         }
         for (int i = 0; i < transitionInfos.count(); i++) {
             Transition *tr = getTransitionItemAt(transitionInfos.at(i).startPos, transitionInfos.at(i).track);
@@ -3085,7 +3752,7 @@ void CustomTrackView::doGroupClips(QList <ItemInfo> clipInfos, QList <ItemInfo>
                 m_document->clipManager()->removeGroup(grp);
                 scene()->destroyItemGroup(grp);
             }
-            tr->setFlags(QGraphicsItem::ItemIsMovable | QGraphicsItem::ItemIsSelectable);
+            tr->setFlag(QGraphicsItem::ItemIsMovable, true);
         }
         setDocumentModified();
         return;
@@ -3109,7 +3776,7 @@ void CustomTrackView::doGroupClips(QList <ItemInfo> clipInfos, QList <ItemInfo>
     setDocumentModified();
 }
 
-void CustomTrackView::addClip(QDomElement xml, const QString &clipId, ItemInfo info, EffectsList effects)
+void CustomTrackView::addClip(QDomElement xml, const QString &clipId, ItemInfo info, EffectsList effects, bool overwrite, bool push, bool refresh)
 {
     DocClipBase *baseclip = m_document->clipManager()->getClipById(clipId);
     if (baseclip == NULL) {
@@ -3133,17 +3800,17 @@ void CustomTrackView::addClip(QDomElement xml, const QString &clipId, ItemInfo i
     if (item->isAudioOnly()) prod = baseclip->audioProducer(info.track);
     else if (item->isVideoOnly()) prod = baseclip->videoProducer();
     else prod = baseclip->producer(info.track);
-    m_document->renderer()->mltInsertClip(info, xml, prod);
+    m_document->renderer()->mltInsertClip(info, xml, prod, overwrite, push);
     for (int i = 0; i < item->effectsCount(); i++) {
         m_document->renderer()->mltAddEffect(info.track, info.startPos, item->getEffectArgs(item->effectAt(i)), false);
     }
     setDocumentModified();
-    m_document->renderer()->doRefresh();
-    m_waitingThumbs.append(item);
+    if (refresh) m_document->renderer()->doRefresh();
+    if (!baseclip->isPlaceHolder()) m_waitingThumbs.append(item);
     m_thumbsTimer.start();
 }
 
-void CustomTrackView::slotUpdateClip(const QString &clipId)
+void CustomTrackView::slotUpdateClip(const QString &clipId, bool reload)
 {
     QList<QGraphicsItem *> list = scene()->items();
     ClipItem *clip = NULL;
@@ -3153,7 +3820,9 @@ void CustomTrackView::slotUpdateClip(const QString &clipId)
             if (clip->clipProducer() == clipId) {
                 ItemInfo info = clip->info();
                 info.track = m_document->tracksCount() - clip->track();
-                m_document->renderer()->mltUpdateClip(info, clip->xml(), clip->baseClip()->producer());
+                if (reload && !m_document->renderer()->mltUpdateClip(info, clip->xml(), clip->baseClip()->producer())) {
+                    emit displayMessage(i18n("Cannot update clip (time: %1, track: %2)", info.startPos.frames(m_document->fps()), info.track), ErrorMessage);
+                }
                 clip->refreshClip(true);
                 clip->update();
             }
@@ -3167,6 +3836,7 @@ ClipItem *CustomTrackView::getClipItemAtEnd(GenTime pos, int track)
     QList<QGraphicsItem *> list = scene()->items(QPointF(framepos - 1, track * m_tracksHeight + m_tracksHeight / 2));
     ClipItem *clip = NULL;
     for (int i = 0; i < list.size(); i++) {
+        if (!list.at(i)->isEnabled()) continue;
         if (list.at(i)->type() == AVWIDGET) {
             ClipItem *test = static_cast <ClipItem *>(list.at(i));
             if (test->endPos() == pos) clip = test;
@@ -3181,6 +3851,7 @@ ClipItem *CustomTrackView::getClipItemAtStart(GenTime pos, int track)
     QList<QGraphicsItem *> list = scene()->items(QPointF(pos.frames(m_document->fps()), track * m_tracksHeight + m_tracksHeight / 2));
     ClipItem *clip = NULL;
     for (int i = 0; i < list.size(); i++) {
+        if (!list.at(i)->isEnabled()) continue;
         if (list.at(i)->type() == AVWIDGET) {
             ClipItem *test = static_cast <ClipItem *>(list.at(i));
             if (test->startPos() == pos) clip = test;
@@ -3192,9 +3863,11 @@ ClipItem *CustomTrackView::getClipItemAtStart(GenTime pos, int track)
 
 ClipItem *CustomTrackView::getClipItemAt(int pos, int track)
 {
-    QList<QGraphicsItem *> list = scene()->items(QPointF(pos, track * m_tracksHeight + m_tracksHeight / 2));
+    const QPointF p(pos, track * m_tracksHeight + m_tracksHeight / 2);
+    QList<QGraphicsItem *> list = scene()->items(p);
     ClipItem *clip = NULL;
     for (int i = 0; i < list.size(); i++) {
+        if (!list.at(i)->isEnabled()) continue;
         if (list.at(i)->type() == AVWIDGET) {
             clip = static_cast <ClipItem *>(list.at(i));
             break;
@@ -3210,9 +3883,11 @@ ClipItem *CustomTrackView::getClipItemAt(GenTime pos, int track)
 
 Transition *CustomTrackView::getTransitionItemAt(int pos, int track)
 {
-    QList<QGraphicsItem *> list = scene()->items(QPointF(pos, (track + 1) * m_tracksHeight));
+    const QPointF p(pos, (track + 1) * m_tracksHeight);
+    QList<QGraphicsItem *> list = scene()->items(p);
     Transition *clip = NULL;
     for (int i = 0; i < list.size(); i++) {
+        if (!list.at(i)->isEnabled()) continue;
         if (list.at(i)->type() == TRANSITIONWIDGET) {
             clip = static_cast <Transition *>(list.at(i));
             break;
@@ -3229,9 +3904,11 @@ Transition *CustomTrackView::getTransitionItemAt(GenTime pos, int track)
 Transition *CustomTrackView::getTransitionItemAtEnd(GenTime pos, int track)
 {
     int framepos = (int)(pos.frames(m_document->fps()));
-    QList<QGraphicsItem *> list = scene()->items(QPointF(framepos - 1, (track + 1) * m_tracksHeight));
+    const QPointF p(framepos - 1, (track + 1) * m_tracksHeight);
+    QList<QGraphicsItem *> list = scene()->items(p);
     Transition *clip = NULL;
     for (int i = 0; i < list.size(); i++) {
+        if (!list.at(i)->isEnabled()) continue;
         if (list.at(i)->type() == TRANSITIONWIDGET) {
             Transition *test = static_cast <Transition *>(list.at(i));
             if (test->endPos() == pos) clip = test;
@@ -3243,9 +3920,11 @@ Transition *CustomTrackView::getTransitionItemAtEnd(GenTime pos, int track)
 
 Transition *CustomTrackView::getTransitionItemAtStart(GenTime pos, int track)
 {
-    QList<QGraphicsItem *> list = scene()->items(QPointF(pos.frames(m_document->fps()), (track + 1) * m_tracksHeight));
+    const QPointF p(pos.frames(m_document->fps()), (track + 1) * m_tracksHeight);
+    QList<QGraphicsItem *> list = scene()->items(p);
     Transition *clip = NULL;
     for (int i = 0; i < list.size(); ++i) {
+        if (!list.at(i)->isEnabled()) continue;
         if (list.at(i)->type() == TRANSITIONWIDGET) {
             Transition *test = static_cast <Transition *>(list.at(i));
             if (test->startPos() == pos) clip = test;
@@ -3255,7 +3934,7 @@ Transition *CustomTrackView::getTransitionItemAtStart(GenTime pos, int track)
     return clip;
 }
 
-void CustomTrackView::moveClip(const ItemInfo start, const ItemInfo end)
+void CustomTrackView::moveClip(const ItemInfo start, const ItemInfo end, bool refresh)
 {
     if (m_selectionGroup) resetSelectionGroup(false);
     ClipItem *item = getClipItemAt((int) start.startPos.frames(m_document->fps()), start.track);
@@ -3298,7 +3977,7 @@ void CustomTrackView::moveClip(const ItemInfo start, const ItemInfo end)
         // undo last move and emit error message
         emit displayMessage(i18n("Cannot move clip to position %1", m_document->timecode().getTimecodeFromFrames(end.startPos.frames(m_document->fps()))), ErrorMessage);
     }
-    m_document->renderer()->doRefresh();
+    if (refresh) m_document->renderer()->doRefresh();
     //kDebug() << " // MOVED CLIP TO: " << end.startPos.frames(25) << ", ITEM START: " << item->startPos().frames(25);
 }
 
@@ -3310,6 +3989,10 @@ void CustomTrackView::moveGroup(QList <ItemInfo> startClip, QList <ItemInfo> sta
     resetSelectionGroup();
     m_scene->clearSelection();
 
+    m_selectionGroup = new AbstractGroupItem(m_document->fps());
+    scene()->addItem(m_selectionGroup);
+
+    m_document->renderer()->blockSignals(true);
     for (int i = 0; i < startClip.count(); i++) {
         if (reverseMove) {
             startClip[i].startPos = startClip.at(i).startPos - offset;
@@ -3319,8 +4002,13 @@ void CustomTrackView::moveGroup(QList <ItemInfo> startClip, QList <ItemInfo> sta
         ClipItem *clip = getClipItemAt(startClip.at(i).startPos, startClip.at(i).track);
         if (clip) {
             clip->setItemLocked(false);
-            if (clip->parentItem()) clip->parentItem()->setSelected(true);
-            else clip->setSelected(true);
+            if (clip->parentItem()) {
+                m_selectionGroup->addToGroup(clip->parentItem());
+                clip->parentItem()->setFlag(QGraphicsItem::ItemIsMovable, false);
+            } else {
+                m_selectionGroup->addToGroup(clip);
+                clip->setFlag(QGraphicsItem::ItemIsMovable, false);
+            }
             m_document->renderer()->mltRemoveClip(m_document->tracksCount() - startClip.at(i).track, startClip.at(i).startPos);
         } else kDebug() << "//MISSING CLIP AT: " << startClip.at(i).startPos.frames(25);
     }
@@ -3332,17 +4020,24 @@ void CustomTrackView::moveGroup(QList <ItemInfo> startClip, QList <ItemInfo> sta
         Transition *tr = getTransitionItemAt(startTransition.at(i).startPos, startTransition.at(i).track);
         if (tr) {
             tr->setItemLocked(false);
-            if (tr->parentItem()) tr->parentItem()->setSelected(true);
-            else tr->setSelected(true);
+            if (tr->parentItem()) {
+                m_selectionGroup->addToGroup(tr->parentItem());
+                tr->parentItem()->setFlag(QGraphicsItem::ItemIsMovable, false);
+            } else {
+                m_selectionGroup->addToGroup(tr);
+                tr->setFlag(QGraphicsItem::ItemIsMovable, false);
+            }
             m_document->renderer()->mltDeleteTransition(tr->transitionTag(), tr->transitionEndTrack(), m_document->tracksCount() - startTransition.at(i).track, startTransition.at(i).startPos, startTransition.at(i).endPos, tr->toXML());
         } else kDebug() << "//MISSING TRANSITION AT: " << startTransition.at(i).startPos.frames(25);
     }
-    groupSelectedItems(true);
+    m_document->renderer()->blockSignals(false);
+
     if (m_selectionGroup) {
         bool snap = KdenliveSettings::snaptopoints();
         KdenliveSettings::setSnaptopoints(false);
 
-        m_selectionGroup->moveBy(offset.frames(m_document->fps()), trackOffset *(qreal) m_tracksHeight);
+        m_selectionGroup->translate(offset.frames(m_document->fps()), trackOffset *(qreal) m_tracksHeight);
+        //m_selectionGroup->moveBy(offset.frames(m_document->fps()), trackOffset *(qreal) m_tracksHeight);
 
         QList<QGraphicsItem *> children = m_selectionGroup->childItems();
         // Expand groups
@@ -3350,6 +4045,12 @@ void CustomTrackView::moveGroup(QList <ItemInfo> startClip, QList <ItemInfo> sta
         for (int i = 0; i < max; i++) {
             if (children.at(i)->type() == GROUPWIDGET) {
                 children += children.at(i)->childItems();
+                //AbstractGroupItem *grp = static_cast<AbstractGroupItem *>(children.at(i));
+                //grp->moveBy(offset.frames(m_document->fps()), trackOffset *(qreal) m_tracksHeight);
+                /*m_document->clipManager()->removeGroup(grp);
+                m_scene->destroyItemGroup(grp);*/
+                children.removeAll(children.at(i));
+                i--;
             }
         }
 
@@ -3361,37 +4062,44 @@ void CustomTrackView::moveGroup(QList <ItemInfo> startClip, QList <ItemInfo> sta
             ItemInfo info = item->info();
             int tracknumber = m_document->tracksCount() - info.track - 1;
             bool isLocked = m_document->trackInfoAt(tracknumber).isLocked;
-            if (isLocked) item->setItemLocked(true);
-            else if (item->isItemLocked()) item->setItemLocked(false);
+            if (isLocked)
+                item->setItemLocked(true);
+            else if (item->isItemLocked())
+                item->setItemLocked(false);
 
             if (item->type() == AVWIDGET) {
                 ClipItem *clip = static_cast <ClipItem*>(item);
                 info.track = m_document->tracksCount() - info.track;
                 Mlt::Producer *prod;
-                if (clip->isAudioOnly()) prod = clip->baseClip()->audioProducer(info.track);
-                else if (clip->isVideoOnly()) prod = clip->baseClip()->videoProducer();
-                else prod = clip->baseClip()->producer(info.track);
+                if (clip->isAudioOnly())
+                    prod = clip->baseClip()->audioProducer(info.track);
+                else if (clip->isVideoOnly())
+                    prod = clip->baseClip()->videoProducer();
+                else
+                    prod = clip->baseClip()->producer(info.track);
                 m_document->renderer()->mltInsertClip(info, clip->xml(), prod);
-                kDebug() << "// inserting new clp: " << info.startPos.frames(25);
             } else if (item->type() == TRANSITIONWIDGET) {
                 Transition *tr = static_cast <Transition*>(item);
-                int newTrack = tr->transitionEndTrack();
-                kDebug() << "/// TRANSITION CURR TRK: " << newTrack;
+                int newTrack;
                 if (!tr->forcedTrack()) {
-                    newTrack += trackOffset;
+                    newTrack = getPreviousVideoTrack(info.track);
+                } else {
+                    newTrack = tr->transitionEndTrack() + trackOffset;
                     if (newTrack < 0 || newTrack > m_document->tracksCount()) newTrack = getPreviousVideoTrack(info.track);
                 }
                 tr->updateTransitionEndTrack(newTrack);
-                kDebug() << "/// TRANSITION UPDATED TRK: " << newTrack;
                 m_document->renderer()->mltAddTransition(tr->transitionTag(), newTrack, m_document->tracksCount() - info.track, info.startPos, info.endPos, tr->toXML());
             }
         }
+        if (!reverseMove)
+            rebuildGroup(m_selectionGroup);
+        resetSelectionGroup(false);
         KdenliveSettings::setSnaptopoints(snap);
         m_document->renderer()->doRefresh();
     } else kDebug() << "///////// WARNING; NO GROUP TO MOVE";
 }
 
-void CustomTrackView::moveTransition(const ItemInfo start, const ItemInfo end)
+void CustomTrackView::moveTransition(const ItemInfo start, const ItemInfo end, bool m_refresh)
 {
     Transition *item = getTransitionItemAt(start.startPos, start.track);
     if (!item) {
@@ -3411,6 +4119,7 @@ void CustomTrackView::moveTransition(const ItemInfo start, const ItemInfo end)
         item->resizeStart((int) end.startPos.frames(m_document->fps()));
     } else if (end.startPos == start.startPos) {
         // Transition end resize;
+        kDebug() << "// resize END: " << end.endPos.frames(m_document->fps());
         item->resizeEnd((int) end.endPos.frames(m_document->fps()));
     } else {
         // Move & resize
@@ -3421,29 +4130,29 @@ void CustomTrackView::moveTransition(const ItemInfo start, const ItemInfo end)
     //item->moveTransition(GenTime((int) (endPos.x() - startPos.x()), m_document->fps()));
     KdenliveSettings::setSnaptopoints(snap);
     item->updateTransitionEndTrack(getPreviousVideoTrack(end.track));
-    m_document->renderer()->mltMoveTransition(item->transitionTag(), m_document->tracksCount() - start.track, m_document->tracksCount() - end.track, item->transitionEndTrack(), start.startPos, start.endPos, end.startPos, end.endPos);
+    m_document->renderer()->mltMoveTransition(item->transitionTag(), m_document->tracksCount() - start.track, m_document->tracksCount() - item->track(), item->transitionEndTrack(), start.startPos, start.endPos, item->startPos(), item->endPos());
     if (m_dragItem && m_dragItem == item) {
         QPoint p;
         ClipItem *transitionClip = getClipItemAt(item->startPos(), item->track());
         if (transitionClip && transitionClip->baseClip()) {
             QString size = transitionClip->baseClip()->getProperty("frame_size");
             double factor = transitionClip->baseClip()->getProperty("aspect_ratio").toDouble();
+            if (factor == 0) factor = 1.0;
             p.setX((int)(size.section('x', 0, 0).toInt() * factor + 0.5));
             p.setY(size.section('x', 1, 1).toInt());
         }
         emit transitionItemSelected(item, getPreviousVideoTrack(item->track()), p);
     }
-    m_document->renderer()->doRefresh();
+    if (m_refresh) m_document->renderer()->doRefresh();
+    setDocumentModified();
 }
 
-void CustomTrackView::resizeClip(const ItemInfo start, const ItemInfo end)
+void CustomTrackView::resizeClip(const ItemInfo start, const ItemInfo end, bool dontWorry)
 {
-    bool resizeClipStart = true;
-    if (start.startPos == end.startPos) resizeClipStart = false;
-    /*if (resizeClipStart) offset = 1;
-    else offset = -1;*/
-    ClipItem *item = getClipItemAt((int)(start.startPos.frames(m_document->fps())), start.track);
+    bool resizeClipStart = (start.startPos != end.startPos);
+    ClipItem *item = getClipItemAtStart(start.startPos, start.track);
     if (!item) {
+        if (dontWorry) return;
         emit displayMessage(i18n("Cannot move clip at time: %1 on track %2", m_document->timecode().getTimecodeFromFrames(start.startPos.frames(m_document->fps())), start.track), ErrorMessage);
         kDebug() << "----------------  ERROR, CANNOT find clip to resize at... "; // << startPos;
         return;
@@ -3452,27 +4161,28 @@ void CustomTrackView::resizeClip(const ItemInfo start, const ItemInfo end)
         // Item is part of a group, reset group
         resetSelectionGroup();
     }
+
     bool snap = KdenliveSettings::snaptopoints();
     KdenliveSettings::setSnaptopoints(false);
-    if (resizeClipStart && start.startPos != end.startPos) {
+    if (resizeClipStart) {
         ItemInfo clipinfo = item->info();
         clipinfo.track = m_document->tracksCount() - clipinfo.track;
-        bool success = m_document->renderer()->mltResizeClipStart(clipinfo, end.startPos - item->startPos());
+        bool success = m_document->renderer()->mltResizeClipStart(clipinfo, end.startPos - clipinfo.startPos);
         if (success) {
             kDebug() << "RESIZE CLP STRAT TO:" << end.startPos.frames(m_document->fps()) << ", OLD ST: " << start.startPos.frames(25);
             item->resizeStart((int) end.startPos.frames(m_document->fps()));
-            updateClipFade(item);
+            updatePositionEffects(item, clipinfo);
         } else emit displayMessage(i18n("Error when resizing clip"), ErrorMessage);
-    } else if (!resizeClipStart) {
+    } else {
         ItemInfo clipinfo = item->info();
         clipinfo.track = m_document->tracksCount() - clipinfo.track;
         bool success = m_document->renderer()->mltResizeClipEnd(clipinfo, end.endPos - clipinfo.startPos);
         if (success) {
             item->resizeEnd((int) end.endPos.frames(m_document->fps()));
-            updateClipFade(item);
+            updatePositionEffects(item, clipinfo);
         } else emit displayMessage(i18n("Error when resizing clip"), ErrorMessage);
     }
-    if (end.cropStart != start.cropStart) {
+    if (!resizeClipStart && end.cropStart != start.cropStart) {
         kDebug() << "// RESIZE CROP, DIFF: " << (end.cropStart - start.cropStart).frames(25);
         ItemInfo clipinfo = end;
         clipinfo.track = m_document->tracksCount() - end.track;
@@ -3484,9 +4194,245 @@ void CustomTrackView::resizeClip(const ItemInfo start, const ItemInfo end)
     }
     m_document->renderer()->doRefresh();
     KdenliveSettings::setSnaptopoints(snap);
+    setDocumentModified();
+}
+
+void CustomTrackView::prepareResizeClipStart(AbstractClipItem* item, ItemInfo oldInfo, int pos, bool check, QUndoCommand *command)
+{
+    if (pos == oldInfo.startPos.frames(m_document->fps()))
+        return;
+    bool snap = KdenliveSettings::snaptopoints();
+    if (check) {
+        KdenliveSettings::setSnaptopoints(false);
+        item->resizeStart(pos);
+        if (item->startPos().frames(m_document->fps()) != pos) {
+            item->resizeStart(oldInfo.startPos.frames(m_document->fps()));
+            emit displayMessage(i18n("Not possible to resize"), ErrorMessage);
+            KdenliveSettings::setSnaptopoints(snap);
+            return;
+        }
+        KdenliveSettings::setSnaptopoints(snap);
+    }
+
+    bool hasParentCommand = false;
+    if (command) {
+        hasParentCommand = true;
+    } else {
+        command = new QUndoCommand();
+        command->setText(i18n("Resize clip start"));
+    }
+
+    // do this here, too, because otherwise undo won't update the group
+    if (item->parentItem() && item->parentItem() != m_selectionGroup)
+        new RebuildGroupCommand(this, item->info().track, item->endPos() - GenTime(1, m_document->fps()), command);
+
+    ItemInfo info = item->info();
+    if (item->type() == AVWIDGET) {
+        ItemInfo resizeinfo = oldInfo;
+        resizeinfo.track = m_document->tracksCount() - resizeinfo.track;
+        bool success = m_document->renderer()->mltResizeClipStart(resizeinfo, item->startPos() - oldInfo.startPos);
+        if (success) {
+            // Check if there is an automatic transition on that clip (lower track)
+            Transition *transition = getTransitionItemAtStart(oldInfo.startPos, oldInfo.track);
+            if (transition && transition->isAutomatic()) {
+                ItemInfo trInfo = transition->info();
+                ItemInfo newTrInfo = trInfo;
+                newTrInfo.startPos = item->startPos();
+                if (newTrInfo.startPos < newTrInfo.endPos)
+                    new MoveTransitionCommand(this, trInfo, newTrInfo, true, command);
+            }
+            // Check if there is an automatic transition on that clip (upper track)
+            transition = getTransitionItemAtStart(oldInfo.startPos, oldInfo.track - 1);
+            if (transition && transition->isAutomatic() && (m_document->tracksCount() - transition->transitionEndTrack()) == oldInfo.track) {
+                ItemInfo trInfo = transition->info();
+                ItemInfo newTrInfo = trInfo;
+                newTrInfo.startPos = item->startPos();
+                ClipItem * upperClip = getClipItemAt(oldInfo.startPos, oldInfo.track - 1);
+                if ((!upperClip || !upperClip->baseClip()->isTransparent()) && newTrInfo.startPos < newTrInfo.endPos)
+                    new MoveTransitionCommand(this, trInfo, newTrInfo, true, command);
+            }
+
+            ClipItem *clip = static_cast < ClipItem * >(item);
+            updatePositionEffects(clip, oldInfo);
+
+            // check keyframes
+            QDomDocument doc;
+            QDomElement root = doc.createElement("list");
+            doc.appendChild(root);
+            QList <int> indexes;
+            for (int i = 0; i < clip->effectsCount(); i++) {
+                QDomElement effect = clip->effectAt(i);
+                if (EffectsList::hasKeyFrames(effect)) {
+                    doc.appendChild(doc.importNode(effect, true));
+                    indexes.append(i);
+                }
+            }
+
+            if (clip->checkEffectsKeyframesPos(oldInfo.cropStart.frames(m_document->fps()), clip->cropStart().frames(m_document->fps()), true)) {
+                // Keyframes were modified, updateClip
+                QDomNodeList effs = doc.elementsByTagName("effect");
+                // Hack:
+                // Since we must always resize clip before updating the keyframes, we
+                // put a resize command before & after checking keyframes so that
+                // we are sure the resize is performed before whenever we do or undo the action
+
+                new ResizeClipCommand(this, oldInfo, info, false, true, command);
+                for (int i = 0; i < indexes.count(); i++) {
+                    new EditEffectCommand(this, m_document->tracksCount() - clip->track(), clip->startPos(), effs.at(i).cloneNode().toElement(), clip->effectAt(indexes.at(i)), indexes.at(i), false, command);
+                    updateEffect(m_document->tracksCount() - clip->track(), clip->startPos(), clip->effectAt(indexes.at(i)), indexes.at(i));
+                }
+                new ResizeClipCommand(this, oldInfo, info, false, true, command);
+                emit clipItemSelected(clip);
+            } else {
+                new ResizeClipCommand(this, oldInfo, info, false, false, command);
+            }
+        } else {
+            KdenliveSettings::setSnaptopoints(false);
+            item->resizeStart((int) oldInfo.startPos.frames(m_document->fps()));
+            KdenliveSettings::setSnaptopoints(snap);
+            emit displayMessage(i18n("Error when resizing clip"), ErrorMessage);
+        }
+    } else if (item->type() == TRANSITIONWIDGET) {
+        Transition *transition = static_cast <Transition *>(item);
+        if (!m_document->renderer()->mltMoveTransition(transition->transitionTag(), (int)(m_document->tracksCount() - oldInfo.track), (int)(m_document->tracksCount() - oldInfo.track), transition->transitionEndTrack(), oldInfo.startPos, oldInfo.endPos, info.startPos, info.endPos)) {
+            // Cannot resize transition
+            KdenliveSettings::setSnaptopoints(false);
+            transition->resizeStart((int) oldInfo.startPos.frames(m_document->fps()));
+            KdenliveSettings::setSnaptopoints(snap);
+            emit displayMessage(i18n("Cannot resize transition"), ErrorMessage);
+        } else {
+            MoveTransitionCommand *moveCommand = new MoveTransitionCommand(this, oldInfo, info, false, command);
+            if (command == NULL)
+                m_commandStack->push(moveCommand);
+        }
+
+    }
+    if (item->parentItem() && item->parentItem() != m_selectionGroup)
+        new RebuildGroupCommand(this, item->info().track, item->endPos() - GenTime(1, m_document->fps()), command);
+
+    if (!hasParentCommand)
+        m_commandStack->push(command);
+}
+
+void CustomTrackView::prepareResizeClipEnd(AbstractClipItem* item, ItemInfo oldInfo, int pos, bool check, QUndoCommand *command)
+{
+    if (pos == oldInfo.endPos.frames(m_document->fps()))
+        return;
+    bool snap = KdenliveSettings::snaptopoints();
+    if (check) {
+        KdenliveSettings::setSnaptopoints(false);
+        item->resizeEnd(pos);
+        if (item->endPos().frames(m_document->fps()) != pos) {
+            item->resizeEnd(oldInfo.endPos.frames(m_document->fps()));
+            emit displayMessage(i18n("Not possible to resize"), ErrorMessage);
+            KdenliveSettings::setSnaptopoints(snap);
+            return;
+        }
+        KdenliveSettings::setSnaptopoints(snap);
+    }
+
+    bool hasParentCommand = false;
+    if (command) {
+        hasParentCommand = true;
+    } else {
+        command = new QUndoCommand();
+        command->setText(i18n("Resize clip end"));
+    }
+
+    // do this here, too, because otherwise undo won't update the group
+    if (item->parentItem() && item->parentItem() != m_selectionGroup)
+        new RebuildGroupCommand(this, item->info().track, item->startPos(), command);
+
+    ItemInfo info = item->info();
+    if (item->type() == AVWIDGET) {
+        ItemInfo resizeinfo = info;
+        resizeinfo.track = m_document->tracksCount() - resizeinfo.track;
+        bool success = m_document->renderer()->mltResizeClipEnd(resizeinfo, resizeinfo.endPos - resizeinfo.startPos);
+        if (success) {
+            // Check if there is an automatic transition on that clip (lower track)
+            Transition *tr = getTransitionItemAtEnd(oldInfo.endPos, oldInfo.track);
+            if (tr && tr->isAutomatic()) {
+                ItemInfo trInfo = tr->info();
+                ItemInfo newTrInfo = trInfo;
+                newTrInfo.endPos = item->endPos();
+                if (newTrInfo.endPos > newTrInfo.startPos)
+                    new MoveTransitionCommand(this, trInfo, newTrInfo, true, command);
+            }
+
+            // Check if there is an automatic transition on that clip (upper track)
+            tr = getTransitionItemAtEnd(oldInfo.endPos, oldInfo.track - 1);
+            if (tr && tr->isAutomatic() && (m_document->tracksCount() - tr->transitionEndTrack()) == oldInfo.track) {
+                ItemInfo trInfo = tr->info();
+                ItemInfo newTrInfo = trInfo;
+                newTrInfo.endPos = item->endPos();
+                ClipItem * upperClip = getClipItemAtEnd(oldInfo.endPos, oldInfo.track - 1);
+                if ((!upperClip || !upperClip->baseClip()->isTransparent()) && newTrInfo.endPos > newTrInfo.startPos)
+                    new MoveTransitionCommand(this, trInfo, newTrInfo, true, command);
+
+            }
+
+            // check keyframes
+            ClipItem *clip = static_cast < ClipItem * >(item);
+            QDomDocument doc;
+            QDomElement root = doc.createElement("list");
+            doc.appendChild(root);
+            QList <int> indexes;
+            for (int i = 0; i < clip->effectsCount(); i++) {
+                QDomElement effect = clip->effectAt(i);
+                if (EffectsList::hasKeyFrames(effect)) {
+                    doc.appendChild(doc.importNode(effect, true));
+                    indexes.append(i);
+                }
+            }
+
+            if (clip->checkEffectsKeyframesPos((oldInfo.cropStart + oldInfo.endPos - oldInfo.startPos).frames(m_document->fps()) - 1, (clip->cropStart() + clip->cropDuration()).frames(m_document->fps()) - 1, false)) {
+                // Keyframes were modified, updateClip
+                QDomNodeList effs = doc.elementsByTagName("effect");
+                // Hack:
+                // Since we must always resize clip before updating the keyframes, we
+                // put a resize command before & after checking keyframes so that
+                // we are sure the resize is performed before whenever we do or undo the action
+
+                new ResizeClipCommand(this, oldInfo, info, false, true, command);
+                for (int i = 0; i < indexes.count(); i++) {
+                    new EditEffectCommand(this, m_document->tracksCount() - clip->track(), clip->startPos(), effs.at(i).cloneNode().toElement(), clip->effectAt(indexes.at(i)), indexes.at(i), false, command);
+                    updateEffect(m_document->tracksCount() - clip->track(), clip->startPos(), clip->effectAt(indexes.at(i)), indexes.at(i));
+                }
+                new ResizeClipCommand(this, oldInfo, info, false, true, command);
+                emit clipItemSelected(clip);
+            } else {
+                new ResizeClipCommand(this, oldInfo, info, false, false, command);
+            }
+
+            updatePositionEffects(clip, oldInfo);
+        } else {
+            KdenliveSettings::setSnaptopoints(false);
+            item->resizeEnd((int) oldInfo.endPos.frames(m_document->fps()));
+            KdenliveSettings::setSnaptopoints(true);
+            emit displayMessage(i18n("Error when resizing clip"), ErrorMessage);
+        }
+    } else if (item->type() == TRANSITIONWIDGET) {
+        Transition *transition = static_cast <Transition *>(item);
+        if (!m_document->renderer()->mltMoveTransition(transition->transitionTag(), (int)(m_document->tracksCount() - oldInfo.track), (int)(m_document->tracksCount() - oldInfo.track), transition->transitionEndTrack(), oldInfo.startPos, oldInfo.endPos, info.startPos, info.endPos)) {
+            // Cannot resize transition
+            KdenliveSettings::setSnaptopoints(false);
+            transition->resizeEnd((int) oldInfo.endPos.frames(m_document->fps()));
+            KdenliveSettings::setSnaptopoints(true);
+            emit displayMessage(i18n("Cannot resize transition"), ErrorMessage);
+        } else {
+            MoveTransitionCommand *moveCommand = new MoveTransitionCommand(this, oldInfo, info, false, command);
+            if (command == NULL)
+                m_commandStack->push(moveCommand);
+        }
+    }
+    if (item->parentItem() && item->parentItem() != m_selectionGroup)
+        new RebuildGroupCommand(this, item->info().track, item->startPos(), command);
+
+    if (!hasParentCommand)
+        m_commandStack->push(command);
 }
 
-void CustomTrackView::updateClipFade(ClipItem * item)
+void CustomTrackView::updatePositionEffects(ClipItem * item, ItemInfo info)
 {
     int end = item->fadeIn();
     if (end != 0) {
@@ -3568,6 +4514,37 @@ void CustomTrackView::updateClipFade(ClipItem * item)
             if (item->isSelected() && effectPos == item->selectedEffectIndex()) emit clipItemSelected(item, effectPos);
         }
     }
+
+    int effectPos = item->hasEffect("freeze", "freeze");
+    if (effectPos != -1) {
+        // Freeze effect needs to be adjusted with clip resize
+        int diff = (info.startPos - item->startPos()).frames(m_document->fps());
+        QDomElement eff = item->getEffectAt(effectPos);
+        if (!eff.isNull() && diff != 0) {
+            int freeze_pos = EffectsList::parameter(eff, "frame").toInt() + diff;
+            EffectsList::setParameter(eff, "frame", QString::number(freeze_pos));
+            if (item->isSelected() && item->selectedEffect().attribute("id") == "freeze") {
+                emit clipItemSelected(item, item->selectedEffectIndex());
+            }
+        }
+    }
+
+    effectPos = item->hasEffect("affine", "pan_zoom");
+    if (effectPos != -1) {
+        QDomElement oldeffect = item->effectAt(effectPos);
+        int start = item->cropStart().frames(m_document->fps());
+        int max = start + item->cropDuration().frames(m_document->fps());
+        if (start < 0) {
+            max -= start;
+            start = 0;
+        }
+        oldeffect.setAttribute("in", start);
+        oldeffect.setAttribute("out", max);
+        if (!m_document->renderer()->mltEditEffect(m_document->tracksCount() - item->track(), item->startPos(), item->getEffectArgs(oldeffect)))
+            emit displayMessage(i18n("Problem editing effect"), ErrorMessage);
+        // if effect is displayed, update the effect edit widget with new clip duration
+        if (item->isSelected() && effectPos == item->selectedEffectIndex()) emit clipItemSelected(item, effectPos);
+    }
 }
 
 double CustomTrackView::getSnapPointForPos(double pos)
@@ -3664,7 +4641,7 @@ void CustomTrackView::slotSeekToNextSnap()
 
 void CustomTrackView::clipStart()
 {
-    ClipItem *item = getMainActiveClip();
+    AbstractClipItem *item = getMainActiveClip();
     if (item != NULL) {
         setCursorPos((int) item->startPos().frames(m_document->fps()));
         checkScrolling();
@@ -3673,7 +4650,7 @@ void CustomTrackView::clipStart()
 
 void CustomTrackView::clipEnd()
 {
-    ClipItem *item = getMainActiveClip();
+    AbstractClipItem *item = getMainActiveClip();
     if (item != NULL) {
         setCursorPos((int) item->endPos().frames(m_document->fps()) - 1);
         checkScrolling();
@@ -3716,6 +4693,7 @@ void CustomTrackView::addMarker(const QString &id, const GenTime &pos, const QSt
     DocClipBase *base = m_document->clipManager()->getClipById(id);
     if (!comment.isEmpty()) base->addSnapMarker(pos, comment);
     else base->deleteSnapMarker(pos);
+    emit updateClipMarkers(base);
     setDocumentModified();
     viewport()->update();
 }
@@ -3727,7 +4705,19 @@ int CustomTrackView::hasGuide(int pos, int offset)
         if (qAbs(guidePos - pos) <= offset) return guidePos;
         else if (guidePos > pos) return -1;
     }
-    return -1;
+    return -1;
+}
+
+void CustomTrackView::buildGuidesMenu(QMenu *goMenu) const
+{
+    QAction *act;
+    goMenu->clear();
+    double fps = m_document->fps();
+    for (int i = 0; i < m_guides.count(); i++) {
+        act = goMenu->addAction(m_guides.at(i)->label() + "/" + Timecode::getStringTimecode(m_guides.at(i)->position().frames(fps), fps));
+        act->setData(m_guides.at(i)->position().frames(m_document->fps()));
+    }
+    goMenu->setEnabled(!m_guides.isEmpty());
 }
 
 void CustomTrackView::editGuide(const GenTime oldPos, const GenTime pos, const QString &comment)
@@ -3766,7 +4756,7 @@ bool CustomTrackView::addGuide(const GenTime pos, const QString &comment)
             return false;
         }
     }
-    Guide *g = new Guide(this, pos, comment, m_document->fps(), m_tracksHeight * m_document->tracksCount());
+    Guide *g = new Guide(this, pos, comment, m_tracksHeight * m_document->tracksCount() * matrix().m22());
     scene()->addItem(g);
     m_guides.append(g);
     qSort(m_guides.begin(), m_guides.end(), sortGuidesList);
@@ -3865,20 +4855,31 @@ void CustomTrackView::setTool(PROJECTTOOL tool)
 
 void CustomTrackView::setScale(double scaleFactor, double verticalScale)
 {
-    QMatrix matrix;
-    matrix = matrix.scale(scaleFactor, verticalScale);
+    QMatrix newmatrix;
+    newmatrix = newmatrix.scale(scaleFactor, verticalScale);
     m_scene->setScale(scaleFactor, verticalScale);
-    m_animationTimer->stop();
-    delete m_visualTip;
-    m_visualTip = NULL;
-    delete m_animation;
-    m_animation = NULL;
+    removeTipAnimation();
     double verticalPos = mapToScene(QPoint(0, viewport()->height() / 2)).y();
-    setMatrix(matrix);
+    bool adjust = false;
+    if (verticalScale != matrix().m22()) adjust = true;
+    setMatrix(newmatrix);
+    if (adjust) {
+        double newHeight = m_tracksHeight * m_document->tracksCount() * matrix().m22();
+        m_cursorLine->setLine(m_cursorLine->line().x1(), 0, m_cursorLine->line().x1(), newHeight);
+        for (int i = 0; i < m_guides.count(); i++) {
+            QLineF l = m_guides.at(i)->line();
+            l.setP2(QPointF(l.x2(), newHeight));
+            m_guides.at(i)->setLine(l);
+        }
+        setSceneRect(0, 0, sceneRect().width(), m_tracksHeight * m_document->tracksCount());
+    }
+
     int diff = sceneRect().width() - m_projectDuration;
-    if (diff * matrix.m11() < 50) {
-        if (matrix.m11() < 0.4) setSceneRect(0, 0, (m_projectDuration + 100 / matrix.m11()), sceneRect().height());
-        else setSceneRect(0, 0, (m_projectDuration + 300), sceneRect().height());
+    if (diff * newmatrix.m11() < 50) {
+        if (newmatrix.m11() < 0.4)
+            setSceneRect(0, 0, (m_projectDuration + 100 / newmatrix.m11()), sceneRect().height());
+        else
+            setSceneRect(0, 0, (m_projectDuration + 300), sceneRect().height());
     }
     centerOn(QPointF(cursorPos(), verticalPos));
 }
@@ -3886,31 +4887,42 @@ void CustomTrackView::setScale(double scaleFactor, double verticalScale)
 void CustomTrackView::slotRefreshGuides()
 {
     if (KdenliveSettings::showmarkers()) {
-        for (int i = 0; i < m_guides.count(); i++) {
+        for (int i = 0; i < m_guides.count(); i++)
             m_guides.at(i)->update();
-        }
     }
 }
 
 void CustomTrackView::drawBackground(QPainter * painter, const QRectF &rect)
 {
-    QRectF r = rect;
-    r.setWidth(r.width() + 1);
-    painter->setClipRect(r);
-    painter->drawLine(r.left(), 0, r.right(), 0);
-    uint max = m_document->tracksCount();
+    //kDebug() << "// DRAW BG: " << rect.width();
+    painter->setClipRect(rect);
     KColorScheme scheme(palette().currentColorGroup(), KColorScheme::Window);
+    QPen pen1 = painter->pen();
+    pen1.setColor(scheme.shade(KColorScheme::DarkShade));
+    painter->setPen(pen1);
+    double min = rect.left();
+    double max = rect.right();
+    painter->drawLine(QPointF(min, 0), QPointF(max, 0));
+    int maxTrack = m_document->tracksCount();
     QColor lockedColor = scheme.background(KColorScheme::NegativeBackground).color();
     QColor audioColor = palette().alternateBase().color();
     QColor base = scheme.background(KColorScheme::NormalBackground).color();
-    for (uint i = 0; i < max; i++) {
-        if (m_document->trackInfoAt(max - i - 1).isLocked == true) painter->fillRect(r.left(), m_tracksHeight * i + 1, r.right() - r.left() + 1, m_tracksHeight - 1, QBrush(lockedColor));
-        else if (m_document->trackInfoAt(max - i - 1).type == AUDIOTRACK) painter->fillRect(r.left(), m_tracksHeight * i + 1, r.right() - r.left() + 1, m_tracksHeight - 1, QBrush(audioColor));
-        painter->drawLine(r.left(), m_tracksHeight *(i + 1), r.right(), m_tracksHeight *(i + 1));
+    for (int i = 0; i < maxTrack; i++) {
+        TrackInfo info = m_document->trackInfoAt(maxTrack - i - 1);
+        if (info.isLocked || info.type == AUDIOTRACK || i == m_selectedTrack) {
+            const QRectF track(min, m_tracksHeight * i + 1, max - min, m_tracksHeight - 1);
+            if (i == m_selectedTrack)
+                painter->fillRect(track, scheme.background(KColorScheme::ActiveBackground).color());
+            else
+                painter->fillRect(track, info.isLocked ? lockedColor : audioColor);
+        }
+        painter->drawLine(QPointF(min, m_tracksHeight *(i + 1)), QPointF(max, m_tracksHeight *(i + 1)));
+    }
+    int lowerLimit = m_tracksHeight * maxTrack + 1;
+    if (height() > lowerLimit) {
+        const QRectF bg(min, lowerLimit, max - min, height() - lowerLimit);
+        painter->fillRect(bg, base);
     }
-    int lowerLimit = m_tracksHeight * m_document->tracksCount() + 1;
-    if (height() > lowerLimit)
-        painter->fillRect(QRectF(r.left(), lowerLimit, r.width(), height() - lowerLimit), QBrush(base));
 }
 
 bool CustomTrackView::findString(const QString &text)
@@ -3930,6 +4942,16 @@ bool CustomTrackView::findString(const QString &text)
     return false;
 }
 
+void CustomTrackView::selectFound(QString track, QString pos)
+{
+    setCursorPos(m_document->timecode().getFrameCount(pos), true);
+    slotSelectTrack(track.toInt());
+    selectClip(true);
+    int vert = verticalScrollBar()->value();
+    int hor = cursorPos();
+    ensureVisible(hor, vert + 10, 2, 2, 50, 0);
+}
+
 bool CustomTrackView::findNextString(const QString &text)
 {
     QString marker;
@@ -3966,9 +4988,8 @@ void CustomTrackView::initSearchStrings()
     }
 
     // add guides
-    for (int i = 0; i < m_guides.count(); i++) {
+    for (int i = 0; i < m_guides.count(); i++)
         m_searchPoints.append(m_guides.at(i)->info());
-    }
 
     qSort(m_searchPoints);
 }
@@ -3979,6 +5000,20 @@ void CustomTrackView::clearSearchStrings()
     m_findIndex = 0;
 }
 
+QList<ItemInfo> CustomTrackView::findId(const QString &clipId)
+{
+    QList<ItemInfo> matchingInfo;
+    QList<QGraphicsItem *> itemList = items();
+    for (int i = 0; i < itemList.count(); i++) {
+        if (itemList.at(i)->type() == AVWIDGET) {
+            ClipItem *item = (ClipItem *)itemList.at(i);
+            if (item->clipProducer() == clipId)
+                matchingInfo << item->info();
+        }
+    }
+    return matchingInfo;
+}
+
 void CustomTrackView::copyClip()
 {
     qDeleteAll(m_copiedItems);
@@ -4002,6 +5037,10 @@ void CustomTrackView::copyClip()
 
 bool CustomTrackView::canBePastedTo(ItemInfo info, int type) const
 {
+    if (m_scene->editMode() != NORMALEDIT) {
+        // If we are in overwrite mode, always allow the move
+        return true;
+    }
     QRectF rect((double) info.startPos.frames(m_document->fps()), (double)(info.track * m_tracksHeight + 1), (double)(info.endPos - info.startPos).frames(m_document->fps()), (double)(m_tracksHeight - 1));
     QList<QGraphicsItem *> collisions = scene()->items(rect, Qt::IntersectsItemBoundingRect);
     for (int i = 0; i < collisions.count(); i++) {
@@ -4010,6 +5049,20 @@ bool CustomTrackView::canBePastedTo(ItemInfo info, int type) const
     return true;
 }
 
+bool CustomTrackView::canBePastedTo(QList <ItemInfo> infoList, int type) const
+{
+    QPainterPath path;
+    for (int i = 0; i < infoList.count(); i++) {
+        const QRectF rect((double) infoList.at(i).startPos.frames(m_document->fps()), (double)(infoList.at(i).track * m_tracksHeight + 1), (double)(infoList.at(i).endPos - infoList.at(i).startPos).frames(m_document->fps()), (double)(m_tracksHeight - 1));
+        path.addRect(rect);
+    }
+    QList<QGraphicsItem *> collisions = scene()->items(path);
+    for (int i = 0; i < collisions.count(); i++) {
+        if (collisions.at(i)->type() == type) return false;
+    }
+    return true;
+}
+
 bool CustomTrackView::canBePasted(QList<AbstractClipItem *> items, GenTime offset, int trackOffset) const
 {
     for (int i = 0; i < items.count(); i++) {
@@ -4049,6 +5102,7 @@ bool CustomTrackView::canBeMoved(QList<AbstractClipItem *> items, GenTime offset
     return true;
 }
 
+
 void CustomTrackView::pasteClip()
 {
     if (m_copiedItems.count() == 0) {
@@ -4058,18 +5112,29 @@ void CustomTrackView::pasteClip()
     QPoint position;
     if (m_menuPosition.isNull()) {
         position = mapFromGlobal(QCursor::pos());
-        if (!underMouse() || position.y() > m_tracksHeight * m_document->tracksCount()) {
+        if (!contentsRect().contains(position) || mapToScene(position).y() / m_tracksHeight > m_document->tracksCount()) {
             emit displayMessage(i18n("Cannot paste selected clips"), ErrorMessage);
             return;
         }
     } else position = m_menuPosition;
+
     GenTime pos = GenTime((int)(mapToScene(position).x()), m_document->fps());
-    int track = (int)(position.y() / m_tracksHeight);
-    ItemInfo first = m_copiedItems.at(0)->info();
+    int track = (int)(mapToScene(position).y() / m_tracksHeight);
 
-    GenTime offset = pos - first.startPos;
-    int trackOffset = track - first.track;
+    GenTime leftPos = m_copiedItems.at(0)->startPos();
+    int lowerTrack = m_copiedItems.at(0)->track();
+    int upperTrack = m_copiedItems.at(0)->track();
+    for (int i = 1; i < m_copiedItems.count(); i++) {
+        if (m_copiedItems.at(i)->startPos() < leftPos) leftPos = m_copiedItems.at(i)->startPos();
+        if (m_copiedItems.at(i)->track() < lowerTrack) lowerTrack = m_copiedItems.at(i)->track();
+        if (m_copiedItems.at(i)->track() > upperTrack) upperTrack = m_copiedItems.at(i)->track();
+    }
+
+    GenTime offset = pos - leftPos;
+    int trackOffset = track - lowerTrack;
 
+    if (lowerTrack + trackOffset < 0) trackOffset = 0 - lowerTrack;
+    if (upperTrack + trackOffset > m_document->tracksCount() - 1) trackOffset = m_document->tracksCount() - upperTrack - 1;
     if (!canBePasted(m_copiedItems, offset, trackOffset)) {
         emit displayMessage(i18n("Cannot paste selected clips"), ErrorMessage);
         return;
@@ -4081,13 +5146,12 @@ void CustomTrackView::pasteClip()
         // parse all clip names
         if (m_copiedItems.at(i) && m_copiedItems.at(i)->type() == AVWIDGET) {
             ClipItem *clip = static_cast <ClipItem *>(m_copiedItems.at(i));
-            ItemInfo info;
-            info.startPos = clip->startPos() + offset;
-            info.endPos = clip->endPos() + offset;
-            info.cropStart = clip->cropStart();
-            info.track = clip->track() + trackOffset;
+            ItemInfo info = clip->info();
+            info.startPos += offset;
+            info.endPos += offset;
+            info.track += trackOffset;
             if (canBePastedTo(info, AVWIDGET)) {
-                new AddTimelineClipCommand(this, clip->xml(), clip->clipProducer(), info, clip->effectList(), true, false, pasteClips);
+                new AddTimelineClipCommand(this, clip->xml(), clip->clipProducer(), info, clip->effectList(), m_scene->editMode() == OVERWRITEEDIT, m_scene->editMode() == INSERTEDIT, true, false, pasteClips);
             } else emit displayMessage(i18n("Cannot paste clip to selected place"), ErrorMessage);
         } else if (m_copiedItems.at(i) && m_copiedItems.at(i)->type() == TRANSITIONWIDGET) {
             Transition *tr = static_cast <Transition *>(m_copiedItems.at(i));
@@ -4095,10 +5159,13 @@ void CustomTrackView::pasteClip()
             info.startPos = tr->startPos() + offset;
             info.endPos = tr->endPos() + offset;
             info.track = tr->track() + trackOffset;
+            int transitionEndTrack;
+            if (!tr->forcedTrack()) transitionEndTrack = getPreviousVideoTrack(info.track);
+            else transitionEndTrack = tr->transitionEndTrack();
             if (canBePastedTo(info, TRANSITIONWIDGET)) {
                 if (info.startPos >= info.endPos) {
                     emit displayMessage(i18n("Invalid transition"), ErrorMessage);
-                } else new AddTransitionCommand(this, info, tr->transitionEndTrack() + trackOffset, tr->toXML(), false, true, pasteClips);
+                } else new AddTransitionCommand(this, info, transitionEndTrack, tr->toXML(), false, true, pasteClips);
             } else emit displayMessage(i18n("Cannot paste transition to selected place"), ErrorMessage);
         }
     }
@@ -4117,18 +5184,73 @@ void CustomTrackView::pasteClipEffects()
     paste->setText("Paste effects");
 
     QList<QGraphicsItem *> clips = scene()->selectedItems();
+
+    // expand groups
+    for (int i = 0; i < clips.count(); ++i) {
+        if (clips.at(i)->type() == GROUPWIDGET) {
+            QList<QGraphicsItem *> children = clips.at(i)->childItems();
+            for (int j = 0; j < children.count(); j++) {
+                if (children.at(j)->type() == AVWIDGET && !clips.contains(children.at(j))) {
+                    clips.append(children.at(j));
+                }
+            }
+        }
+    }
+
+
     for (int i = 0; i < clips.count(); ++i) {
         if (clips.at(i)->type() == AVWIDGET) {
             ClipItem *item = static_cast < ClipItem *>(clips.at(i));
             for (int j = 0; j < clip->effectsCount(); j++) {
-                new AddEffectCommand(this, m_document->tracksCount() - item->track(), item->startPos(), clip->effectAt(j), true, paste);
+                QDomElement eff = clip->effectAt(j);
+                if (eff.attribute("unique", "0") == "0" || item->hasEffect(eff.attribute("tag"), eff.attribute("id")) == -1) {
+                    adjustKeyfames(clip->cropStart(), item->cropStart(), item->cropDuration(), eff);
+                    new AddEffectCommand(this, m_document->tracksCount() - item->track(), item->startPos(), eff, true, paste);
+                }
             }
         }
     }
-    m_commandStack->push(paste);
+    if (paste->childCount() > 0) m_commandStack->push(paste);
+    else delete paste;
+
+    //adjust effects (fades, ...)
+    for (int i = 0; i < clips.count(); ++i) {
+        if (clips.at(i)->type() == AVWIDGET) {
+            ClipItem *item = static_cast < ClipItem *>(clips.at(i));
+            updatePositionEffects(item, item->info());
+        }
+    }
 }
 
 
+void CustomTrackView::adjustKeyfames(GenTime oldstart, GenTime newstart, GenTime duration, QDomElement xml)
+{
+    // parse parameters to check if we need to adjust to the new crop start
+    int diff = (newstart - oldstart).frames(m_document->fps());
+    int max = (newstart + duration).frames(m_document->fps());
+    QDomNodeList params = xml.elementsByTagName("parameter");
+    for (int i = 0; i < params.count(); i++) {
+        QDomElement e = params.item(i).toElement();
+        if (!e.isNull() && (e.attribute("type") == "keyframe" || e.attribute("type") == "simplekeyframe")) {
+            QString def = e.attribute("default");
+            // Effect has a keyframe type parameter, we need to adjust the values
+            QStringList keys = e.attribute("keyframes").split(";", QString::SkipEmptyParts);
+            QStringList newKeyFrames;
+            foreach(const QString &str, keys) {
+                int pos = str.section(':', 0, 0).toInt();
+                double val = str.section(':', 1, 1).toDouble();
+                pos += diff;
+                if (pos > max) {
+                    newKeyFrames.append(QString::number(max) + ':' + QString::number(val));
+                    break;
+                } else newKeyFrames.append(QString::number(pos) + ':' + QString::number(val));
+            }
+            //kDebug()<<"ORIGIN: "<<keys<<", FIXED: "<<newKeyFrames;
+            e.setAttribute("keyframes", newKeyFrames.join(";"));
+        }
+    }
+}
+
 ClipItem *CustomTrackView::getClipUnderCursor() const
 {
     QRectF rect((double) m_cursorPos, 0.0, 1.0, (double)(m_tracksHeight * m_document->tracksCount()));
@@ -4141,17 +5263,18 @@ ClipItem *CustomTrackView::getClipUnderCursor() const
     return NULL;
 }
 
-ClipItem *CustomTrackView::getMainActiveClip() const
+AbstractClipItem *CustomTrackView::getMainActiveClip() const
 {
     QList<QGraphicsItem *> clips = scene()->selectedItems();
     if (clips.isEmpty()) {
         return getClipUnderCursor();
     } else {
-        ClipItem *item = NULL;
+        AbstractClipItem *item = NULL;
         for (int i = 0; i < clips.count(); ++i) {
-            if (clips.at(i)->type() == AVWIDGET)
-                item = static_cast < ClipItem *>(clips.at(i));
-            if (item->startPos().frames(m_document->fps()) <= m_cursorPos && item->endPos().frames(m_document->fps()) >= m_cursorPos) break;
+            if (clips.at(i)->type() == AVWIDGET) {
+                item = static_cast < AbstractClipItem *>(clips.at(i));
+                if (clips.count() > 1 && item->startPos().frames(m_document->fps()) <= m_cursorPos && item->endPos().frames(m_document->fps()) >= m_cursorPos) break;
+            }
         }
         if (item) return item;
     }
@@ -4193,24 +5316,7 @@ void CustomTrackView::setInPoint()
             return;
         }
     }
-    ItemInfo startInfo = clip->info();
-    ItemInfo endInfo = startInfo;
-    endInfo.startPos = GenTime(m_cursorPos, m_document->fps());
-    if (endInfo.startPos >= startInfo.endPos) {
-        // Check for invalid resize
-        emit displayMessage(i18n("Invalid action"), ErrorMessage);
-        return;
-    } else if (endInfo.startPos < startInfo.startPos) {
-        int length = m_document->renderer()->mltGetSpaceLength(endInfo.startPos, m_document->tracksCount() - startInfo.track, false);
-        if ((clip->type() == TRANSITIONWIDGET && itemCollision(clip, endInfo) == true) || (
-                    (clip->type() == AVWIDGET) && length < (startInfo.startPos - endInfo.startPos).frames(m_document->fps()))) {
-            emit displayMessage(i18n("Invalid action"), ErrorMessage);
-            return;
-        }
-    }
-    if (clip->type() == TRANSITIONWIDGET) {
-        m_commandStack->push(new MoveTransitionCommand(this, startInfo, endInfo, true));
-    } else m_commandStack->push(new ResizeClipCommand(this, startInfo, endInfo, true));
+    prepareResizeClipStart(clip, clip->info(), m_cursorPos, true);
 }
 
 void CustomTrackView::setOutPoint()
@@ -4224,29 +5330,12 @@ void CustomTrackView::setOutPoint()
             return;
         }
     }
-    ItemInfo startInfo = clip->info();
-    ItemInfo endInfo = clip->info();
-    endInfo.endPos = GenTime(m_cursorPos, m_document->fps());
-    if (endInfo.endPos <= startInfo.startPos) {
-        // Check for invalid resize
-        emit displayMessage(i18n("Invalid action"), ErrorMessage);
-        return;
-    } else if (endInfo.endPos > startInfo.endPos) {
-        int length = m_document->renderer()->mltGetSpaceLength(endInfo.endPos, m_document->tracksCount() - startInfo.track, false);
-        if ((clip->type() == TRANSITIONWIDGET && itemCollision(clip, endInfo) == true) || (clip->type() == AVWIDGET && length < (endInfo.endPos - startInfo.endPos).frames(m_document->fps()))) {
-            emit displayMessage(i18n("Invalid action"), ErrorMessage);
-            return;
-        }
-    }
-
-
-    if (clip->type() == TRANSITIONWIDGET) {
-        m_commandStack->push(new MoveTransitionCommand(this, startInfo, endInfo, true));
-    } else m_commandStack->push(new ResizeClipCommand(this, startInfo, endInfo, true));
+    prepareResizeClipEnd(clip, clip->info(), m_cursorPos, true);
 }
 
 void CustomTrackView::slotUpdateAllThumbs()
 {
+    if (!isEnabled()) return;
     QList<QGraphicsItem *> itemList = items();
     //if (itemList.isEmpty()) return;
     ClipItem *item;
@@ -4260,25 +5349,28 @@ void CustomTrackView::slotUpdateAllThumbs()
                     QString thumb = thumbBase + item->baseClip()->getClipHash() + "_0.png";
                     if (QFile::exists(thumb)) {
                         QPixmap pix(thumb);
+                        if (pix.isNull()) KIO::NetAccess::del(KUrl(thumb), this);
                         item->slotSetStartThumb(pix);
                     }
                 } else {
                     QString startThumb = thumbBase + item->baseClip()->getClipHash() + '_';
                     QString endThumb = startThumb;
-                    startThumb.append(QString::number(item->cropStart().frames(m_document->fps())) + ".png");
-                    endThumb.append(QString::number((item->cropStart() + item->cropDuration()).frames(m_document->fps()) - 1) + ".png");
+                    startThumb.append(QString::number(item->speedIndependantCropStart().frames(m_document->fps())) + ".png");
+                    endThumb.append(QString::number((item->speedIndependantCropStart() + item->speedIndependantCropDuration()).frames(m_document->fps()) - 1) + ".png");
                     if (QFile::exists(startThumb)) {
                         QPixmap pix(startThumb);
+                        if (pix.isNull()) KIO::NetAccess::del(KUrl(startThumb), this);
                         item->slotSetStartThumb(pix);
                     }
                     if (QFile::exists(endThumb)) {
                         QPixmap pix(endThumb);
+                        if (pix.isNull()) KIO::NetAccess::del(KUrl(endThumb), this);
                         item->slotSetEndThumb(pix);
                     }
                 }
             }
             item->refreshClip(false);
-            qApp->processEvents();
+            //qApp->processEvents();
         }
     }
     viewport()->update();
@@ -4303,8 +5395,8 @@ void CustomTrackView::saveThumbnails()
                 } else {
                     QString startThumb = thumbBase + item->baseClip()->getClipHash() + '_';
                     QString endThumb = startThumb;
-                    startThumb.append(QString::number(item->cropStart().frames(m_document->fps())) + ".png");
-                    endThumb.append(QString::number((item->cropStart() + item->cropDuration()).frames(m_document->fps()) - 1) + ".png");
+                    startThumb.append(QString::number(item->speedIndependantCropStart().frames(m_document->fps())) + ".png");
+                    endThumb.append(QString::number((item->speedIndependantCropStart() + item->speedIndependantCropDuration()).frames(m_document->fps()) - 1) + ".png");
                     if (!QFile::exists(startThumb)) {
                         QPixmap pix(item->startThumb());
                         pix.save(startThumb);
@@ -4322,30 +5414,24 @@ void CustomTrackView::saveThumbnails()
 
 void CustomTrackView::slotInsertTrack(int ix)
 {
-    kDebug() << "// INSERTING TRK: " << ix;
-    QDialog d(parentWidget());
-    Ui::AddTrack_UI view;
-    view.setupUi(&d);
-    view.track_nb->setMaximum(m_document->tracksCount() - 1);
-    view.track_nb->setValue(ix);
-    d.setWindowTitle(i18n("Insert Track"));
+    TrackDialog d(m_document, parentWidget());
+    d.comboTracks->setCurrentIndex(ix);
+    d.label->setText(i18n("Insert track"));
+    d.setWindowTitle(i18n("Insert New Track"));
 
     if (d.exec() == QDialog::Accepted) {
-        ix = view.track_nb->value();
-        if (view.before_select->currentIndex() == 1) {
+        ix = d.comboTracks->currentIndex();
+        if (d.before_select->currentIndex() == 1)
             ix++;
-        }
         TrackInfo info;
-        if (view.video_track->isChecked()) {
+        info.isMute = false;
+        info.isLocked = false;
+        if (d.video_track->isChecked()) {
             info.type = VIDEOTRACK;
-            info.isMute = false;
             info.isBlind = false;
-            info.isLocked = false;
         } else {
             info.type = AUDIOTRACK;
-            info.isMute = false;
             info.isBlind = true;
-            info.isLocked = false;
         }
         AddTrackCommand *addTrack = new AddTrackCommand(this, ix, info, true);
         m_commandStack->push(addTrack);
@@ -4355,9 +5441,16 @@ void CustomTrackView::slotInsertTrack(int ix)
 
 void CustomTrackView::slotDeleteTrack(int ix)
 {
-    bool ok;
-    ix = QInputDialog::getInteger(this, i18n("Remove Track"), i18n("Track"), ix, 0, m_document->tracksCount() - 1, 1, &ok);
-    if (ok) {
+    if (m_document->tracksCount() < 2) return;
+    TrackDialog d(m_document, parentWidget());
+    d.comboTracks->setCurrentIndex(ix);
+    d.label->setText(i18n("Delete track"));
+    d.before_select->setHidden(true);
+    d.setWindowTitle(i18n("Delete Track"));
+    d.video_track->setHidden(true);
+    d.audio_track->setHidden(true);
+    if (d.exec() == QDialog::Accepted) {
+        ix = d.comboTracks->currentIndex();
         TrackInfo info = m_document->trackInfoAt(m_document->tracksCount() - ix - 1);
         deleteTimelineTrack(ix, info);
         setDocumentModified();
@@ -4366,43 +5459,24 @@ void CustomTrackView::slotDeleteTrack(int ix)
     }
 }
 
-void CustomTrackView::slotChangeTrack(int ix)
+void CustomTrackView::slotConfigTracks(int ix)
 {
-    QDialog d(parentWidget());
-    Ui::AddTrack_UI view;
-    view.setupUi(&d);
-    view.label->setText(i18n("Change track"));
-    view.before_select->setHidden(true);
-    view.track_nb->setMaximum(m_document->tracksCount() - 1);
-    view.track_nb->setValue(ix);
-    d.setWindowTitle(i18n("Change Track Type"));
-
-    if (m_document->trackInfoAt(m_document->tracksCount() - ix - 1).type == VIDEOTRACK)
-        view.video_track->setChecked(true);
-    else
-        view.audio_track->setChecked(true);
-
+    TracksConfigDialog d(m_document, ix, parentWidget());
     if (d.exec() == QDialog::Accepted) {
-        TrackInfo info;
-        info.isLocked = false;
-        info.isMute = false;
-        ix = view.track_nb->value();
-
-        if (view.video_track->isChecked()) {
-            info.type = VIDEOTRACK;
-            info.isBlind = false;
-        } else {
-            info.type = AUDIOTRACK;
-            info.isBlind = true;
+        ConfigTracksCommand *configTracks = new ConfigTracksCommand(this, m_document->tracksList(), d.tracksList());
+        m_commandStack->push(configTracks);
+        QList <int> toDelete = d.deletedTracks();
+        for (int i = 0; i < toDelete.count(); ++i) {
+            TrackInfo info = m_document->trackInfoAt(m_document->tracksCount() - toDelete.at(i) + i - 1);
+            deleteTimelineTrack(toDelete.at(i) - i, info);
         }
-        changeTimelineTrack(ix, info);
         setDocumentModified();
     }
 }
 
-
 void CustomTrackView::deleteTimelineTrack(int ix, TrackInfo trackinfo)
 {
+    if (m_document->tracksCount() < 2) return;
     double startY = ix * m_tracksHeight + 1 + m_tracksHeight / 2;
     QRectF r(0, startY, sceneRect().width(), m_tracksHeight / 2 - 1);
     QList<QGraphicsItem *> selection = m_scene->items(r);
@@ -4413,7 +5487,7 @@ void CustomTrackView::deleteTimelineTrack(int ix, TrackInfo trackinfo)
     for (int i = 0; i < selection.count(); i++) {
         if (selection.at(i)->type() == AVWIDGET) {
             ClipItem *item =  static_cast <ClipItem *>(selection.at(i));
-            new AddTimelineClipCommand(this, item->xml(), item->clipProducer(), item->info(), item->effectList(), false, true, deleteTrack);
+            new AddTimelineClipCommand(this, item->xml(), item->clipProducer(), item->info(), item->effectList(), false, false, false, true, deleteTrack);
             m_scene->removeItem(item);
             delete item;
             item = NULL;
@@ -4426,18 +5500,10 @@ void CustomTrackView::deleteTimelineTrack(int ix, TrackInfo trackinfo)
         }
     }
 
-    selection = m_scene->items();
     new AddTrackCommand(this, ix, trackinfo, false, deleteTrack);
     m_commandStack->push(deleteTrack);
 }
 
-void CustomTrackView::changeTimelineTrack(int ix, TrackInfo trackinfo)
-{
-    TrackInfo oldinfo = m_document->trackInfoAt(m_document->tracksCount() - ix - 1);
-    ChangeTrackCommand *changeTrack = new ChangeTrackCommand(this, ix, oldinfo, trackinfo);
-    m_commandStack->push(changeTrack);
-}
-
 void CustomTrackView::autoTransition()
 {
     QList<QGraphicsItem *> itemList = scene()->selectedItems();
@@ -4449,6 +5515,7 @@ void CustomTrackView::autoTransition()
     tr->setAutomatic(!tr->isAutomatic());
     QDomElement transition = tr->toXML();
     m_document->renderer()->mltUpdateTransition(transition.attribute("tag"), transition.attribute("tag"), transition.attribute("transition_btrack").toInt(), m_document->tracksCount() - transition.attribute("transition_atrack").toInt(), tr->startPos(), tr->endPos(), transition);
+    setDocumentModified();
 }
 
 
@@ -4517,7 +5584,6 @@ void CustomTrackView::getTransitionAvailableSpace(AbstractClipItem *item, GenTim
     }
 }
 
-
 void CustomTrackView::loadGroups(const QDomNodeList groups)
 {
     for (int i = 0; i < groups.count(); i++) {
@@ -4545,7 +5611,7 @@ void CustomTrackView::splitAudio()
     resetSelectionGroup();
     QList<QGraphicsItem *> selection = scene()->selectedItems();
     if (selection.isEmpty()) {
-        emit displayMessage(i18n("You must select one clip for this action"), ErrorMessage);
+        emit displayMessage(i18n("You must select at least one clip for this action"), ErrorMessage);
         return;
     }
     QUndoCommand *splitCommand = new QUndoCommand();
@@ -4562,7 +5628,8 @@ void CustomTrackView::splitAudio()
             }
         }
     }
-    m_commandStack->push(splitCommand);
+    if (splitCommand->childCount() > 0)
+        m_commandStack->push(splitCommand);
 }
 
 void CustomTrackView::doSplitAudio(const GenTime &pos, int track, bool split)
@@ -4577,7 +5644,7 @@ void CustomTrackView::doSplitAudio(const GenTime &pos, int track, bool split)
         int freetrack = m_document->tracksCount() - track - 1;
         for (; freetrack > 0; freetrack--) {
             kDebug() << "// CHK DOC TRK:" << freetrack << ", DUR:" << m_document->renderer()->mltTrackDuration(freetrack);
-            if (m_document->trackInfoAt(freetrack - 1).type == AUDIOTRACK) {
+            if (m_document->trackInfoAt(freetrack - 1).type == AUDIOTRACK && !m_document->trackInfoAt(freetrack - 1).isLocked) {
                 kDebug() << "// CHK DOC TRK:" << freetrack << ", DUR:" << m_document->renderer()->mltTrackDuration(freetrack);
                 if (m_document->renderer()->mltTrackDuration(freetrack) < start || m_document->renderer()->mltGetSpaceLength(pos, freetrack, false) >= clip->cropDuration().frames(m_document->fps())) {
                     kDebug() << "FOUND SPACE ON TRK: " << freetrack;
@@ -4589,10 +5656,7 @@ void CustomTrackView::doSplitAudio(const GenTime &pos, int track, bool split)
         if (freetrack == 0) {
             emit displayMessage(i18n("No empty space to put clip audio"), ErrorMessage);
         } else {
-            ItemInfo info;
-            info.startPos = clip->startPos();
-            info.endPos = clip->endPos();
-            info.cropStart = clip->cropStart();
+            ItemInfo info = clip->info();
             info.track = m_document->tracksCount() - freetrack;
             addClip(clip->xml(), clip->clipProducer(), info, clip->effectList());
             scene()->clearSelection();
@@ -4600,8 +5664,12 @@ void CustomTrackView::doSplitAudio(const GenTime &pos, int track, bool split)
             ClipItem *audioClip = getClipItemAt(start, info.track);
             if (audioClip) {
                 clip->setVideoOnly(true);
-                m_document->renderer()->mltUpdateClipProducer(m_document->tracksCount() - track, start, clip->baseClip()->videoProducer());
-                m_document->renderer()->mltUpdateClipProducer(m_document->tracksCount() - info.track, start, clip->baseClip()->audioProducer(info.track));
+                if (m_document->renderer()->mltUpdateClipProducer(m_document->tracksCount() - track, start, clip->baseClip()->videoProducer()) == false) {
+                    emit displayMessage(i18n("Cannot update clip (time: %1, track: %2)", start, track), ErrorMessage);
+                }
+                if (m_document->renderer()->mltUpdateClipProducer(m_document->tracksCount() - info.track, start, clip->baseClip()->audioProducer(info.track)) == false) {
+                    emit displayMessage(i18n("Cannot update clip (time: %1, track: %2)", start, info.track), ErrorMessage);
+                }
                 audioClip->setSelected(true);
                 audioClip->setAudioOnly(true);
                 groupSelectedItems(false, true);
@@ -4625,11 +5693,13 @@ void CustomTrackView::doSplitAudio(const GenTime &pos, int track, bool split)
                 ItemInfo info = clip->info();
                 deleteClip(clp->info());
                 clip->setVideoOnly(false);
-                m_document->renderer()->mltUpdateClipProducer(m_document->tracksCount() - info.track, info.startPos.frames(m_document->fps()), clip->baseClip()->producer(info.track));
+                if (!m_document->renderer()->mltUpdateClipProducer(m_document->tracksCount() - info.track, info.startPos.frames(m_document->fps()), clip->baseClip()->producer(info.track))) {
+                    emit displayMessage(i18n("Cannot update clip (time: %1, track: %2)", info.startPos.frames(m_document->fps()), info.track), ErrorMessage);
+                }
                 break;
             }
         }
-        clip->setFlags(QGraphicsItem::ItemIsMovable | QGraphicsItem::ItemIsSelectable);
+        clip->setFlag(QGraphicsItem::ItemIsMovable, true);
         m_document->clipManager()->removeGroup(grp);
         scene()->destroyItemGroup(grp);
     }
@@ -4721,17 +5791,23 @@ void CustomTrackView::doChangeClipType(const GenTime &pos, int track, bool video
         int start = pos.frames(m_document->fps());
         clip->setVideoOnly(true);
         clip->setAudioOnly(false);
-        m_document->renderer()->mltUpdateClipProducer(m_document->tracksCount() - track, start, clip->baseClip()->videoProducer());
+        if (m_document->renderer()->mltUpdateClipProducer(m_document->tracksCount() - track, start, clip->baseClip()->videoProducer()) == false) {
+            emit displayMessage(i18n("Cannot update clip (time: %1, track: %2)", start, track), ErrorMessage);
+        }
     } else if (audioOnly) {
         int start = pos.frames(m_document->fps());
         clip->setAudioOnly(true);
         clip->setVideoOnly(false);
-        m_document->renderer()->mltUpdateClipProducer(m_document->tracksCount() - track, start, clip->baseClip()->audioProducer(track));
+        if (m_document->renderer()->mltUpdateClipProducer(m_document->tracksCount() - track, start, clip->baseClip()->audioProducer(track)) == false) {
+            emit displayMessage(i18n("Cannot update clip (time: %1, track: %2)", start, track), ErrorMessage);
+        }
     } else {
         int start = pos.frames(m_document->fps());
         clip->setAudioOnly(false);
         clip->setVideoOnly(false);
-        m_document->renderer()->mltUpdateClipProducer(m_document->tracksCount() - track, start, clip->baseClip()->producer(track));
+        if (m_document->renderer()->mltUpdateClipProducer(m_document->tracksCount() - track, start, clip->baseClip()->producer(track)) == false) {
+            emit displayMessage(i18n("Cannot update clip (time: %1, track: %2)", start, track), ErrorMessage);
+        }
     }
     clip->update();
     setDocumentModified();
@@ -4757,6 +5833,12 @@ void CustomTrackView::updateClipTypeActions(ClipItem *clip)
     }
 }
 
+void CustomTrackView::slotGoToMarker(QAction *action)
+{
+    int pos = action->data().toInt();
+    setCursorPos(pos, true);
+}
+
 void CustomTrackView::reloadTransitionLumas()
 {
     QString lumaNames;
@@ -4806,4 +5888,332 @@ void CustomTrackView::reloadTransitionLumas()
     emit transitionItemSelected(NULL);
 }
 
-#include "customtrackview.moc"
+double CustomTrackView::fps() const
+{
+    return m_document->fps();
+}
+
+void CustomTrackView::updateProjectFps()
+{
+    // update all clips to the new fps
+    resetSelectionGroup();
+    scene()->clearSelection();
+    m_dragItem = NULL;
+    QList<QGraphicsItem *> itemList = items();
+    for (int i = 0; i < itemList.count(); i++) {
+        // remove all items and re-add them one by one
+        if (itemList.at(i) != m_cursorLine && itemList.at(i)->parentItem() == NULL) m_scene->removeItem(itemList.at(i));
+    }
+    for (int i = 0; i < itemList.count(); i++) {
+        if (itemList.at(i)->parentItem() == 0 && (itemList.at(i)->type() == AVWIDGET || itemList.at(i)->type() == TRANSITIONWIDGET)) {
+            AbstractClipItem *clip = static_cast <AbstractClipItem *>(itemList.at(i));
+            clip->updateFps(m_document->fps());
+            m_scene->addItem(clip);
+        } else if (itemList.at(i)->type() == GROUPWIDGET) {
+            AbstractGroupItem *grp = static_cast <AbstractGroupItem *>(itemList.at(i));
+            QList<QGraphicsItem *> children = grp->childItems();
+            for (int j = 0; j < children.count(); j++) {
+                if (children.at(j)->type() == AVWIDGET || children.at(j)->type() == TRANSITIONWIDGET) {
+                    AbstractClipItem *clip = static_cast <AbstractClipItem *>(children.at(j));
+                    clip->setFlag(QGraphicsItem::ItemIsMovable, true);
+                    clip->updateFps(m_document->fps());
+                }
+            }
+            m_document->clipManager()->removeGroup(grp);
+            m_scene->addItem(grp);
+            scene()->destroyItemGroup(grp);
+            for (int j = 0; j < children.count(); j++) {
+                if (children.at(j)->type() == AVWIDGET || children.at(j)->type() == TRANSITIONWIDGET) {
+                    //children.at(j)->setParentItem(0);
+                    children.at(j)->setSelected(true);
+                }
+            }
+            groupSelectedItems(true, true);
+        } else if (itemList.at(i)->type() == GUIDEITEM) {
+            Guide *g = static_cast<Guide *>(itemList.at(i));
+            g->updatePos();
+            m_scene->addItem(g);
+        }
+    }
+    viewport()->update();
+}
+
+void CustomTrackView::slotTrackDown()
+{
+    if (m_selectedTrack > m_document->tracksCount() - 2) m_selectedTrack = 0;
+    else m_selectedTrack++;
+    emit updateTrackHeaders();
+    QRectF rect(mapToScene(QPoint(10, 0)).x(), m_selectedTrack * m_tracksHeight, 10, m_tracksHeight);
+    ensureVisible(rect, 0, 0);
+    viewport()->update();
+}
+
+void CustomTrackView::slotTrackUp()
+{
+    if (m_selectedTrack > 0) m_selectedTrack--;
+    else m_selectedTrack = m_document->tracksCount() - 1;
+    emit updateTrackHeaders();
+    QRectF rect(mapToScene(QPoint(10, 0)).x(), m_selectedTrack * m_tracksHeight, 10, m_tracksHeight);
+    ensureVisible(rect, 0, 0);
+    viewport()->update();
+}
+
+int CustomTrackView::selectedTrack() const
+{
+    return m_selectedTrack;
+}
+
+QStringList CustomTrackView::selectedClips() const
+{
+    QStringList clipIds;
+    QList<QGraphicsItem *> selection = m_scene->selectedItems();
+    for (int i = 0; i < selection.count(); i++) {
+        if (selection.at(i)->type() == AVWIDGET) {
+            ClipItem *item = (ClipItem *)selection.at(i);
+            clipIds << item->clipProducer();
+        }
+    }
+    return clipIds;
+}
+
+QList<ClipItem *> CustomTrackView::selectedClipItems() const
+{
+    QList<ClipItem *> clips;
+    QList<QGraphicsItem *> selection = m_scene->selectedItems();
+    for (int i = 0; i < selection.count(); i++) {
+        if (selection.at(i)->type() == AVWIDGET) {
+            clips.append((ClipItem *)selection.at(i));
+        }
+    }
+    return clips;
+}
+
+void CustomTrackView::slotSelectTrack(int ix)
+{
+    m_selectedTrack = qMax(0, ix);
+    m_selectedTrack = qMin(ix, m_document->tracksCount() - 1);
+    emit updateTrackHeaders();
+    QRectF rect(mapToScene(QPoint(10, 0)).x(), m_selectedTrack * m_tracksHeight, 10, m_tracksHeight);
+    ensureVisible(rect, 0, 0);
+    viewport()->update();
+}
+
+void CustomTrackView::selectClip(bool add, bool group, int track, int pos)
+{
+    QRectF rect;
+    if (track != -1 && pos != -1)
+        rect = QRectF(pos, track * m_tracksHeight + m_tracksHeight / 2, 1, 1);
+    else
+        rect = QRectF(m_cursorPos, m_selectedTrack * m_tracksHeight + m_tracksHeight / 2, 1, 1);
+    QList<QGraphicsItem *> selection = m_scene->items(rect);
+    resetSelectionGroup(group);
+    if (!group) m_scene->clearSelection();
+    for (int i = 0; i < selection.count(); i++) {
+        if (selection.at(i)->type() == AVWIDGET) {
+            selection.at(i)->setSelected(add);
+            break;
+        }
+    }
+    if (group) groupSelectedItems();
+}
+
+void CustomTrackView::selectTransition(bool add, bool group)
+{
+    QRectF rect(m_cursorPos, m_selectedTrack * m_tracksHeight + m_tracksHeight, 1, 1);
+    QList<QGraphicsItem *> selection = m_scene->items(rect);
+    resetSelectionGroup(group);
+    if (!group) m_scene->clearSelection();
+    for (int i = 0; i < selection.count(); i++) {
+        if (selection.at(i)->type() == TRANSITIONWIDGET) {
+            selection.at(i)->setSelected(add);
+            break;
+        }
+    }
+    if (group) groupSelectedItems();
+}
+
+QStringList CustomTrackView::extractTransitionsLumas()
+{
+    QStringList urls;
+    QList<QGraphicsItem *> itemList = items();
+    Transition *transitionitem;
+    QDomElement transitionXml;
+    for (int i = 0; i < itemList.count(); i++) {
+        if (itemList.at(i)->type() == TRANSITIONWIDGET) {
+            transitionitem = static_cast <Transition*>(itemList.at(i));
+            transitionXml = transitionitem->toXML();
+            QString luma = EffectsList::parameter(transitionXml, "luma");
+            if (!luma.isEmpty()) urls << luma;
+        }
+    }
+    return urls;
+}
+
+void CustomTrackView::setEditMode(EDITMODE mode)
+{
+    m_scene->setEditMode(mode);
+}
+
+void CustomTrackView::checkTrackSequence(int track)
+{
+    QList <int> times = m_document->renderer()->checkTrackSequence(m_document->tracksCount() - track);
+    //track = m_document->tracksCount() -track;
+    QRectF rect(0, track * m_tracksHeight + m_tracksHeight / 2, sceneRect().width(), 2);
+    QList<QGraphicsItem *> selection = m_scene->items(rect);
+    QList <int> timelineList;
+    timelineList.append(0);
+    for (int i = 0; i < selection.count(); i++) {
+        if (selection.at(i)->type() == AVWIDGET) {
+            ClipItem *clip = static_cast <ClipItem *>(selection.at(i));
+            int start = clip->startPos().frames(m_document->fps());
+            int end = clip->endPos().frames(m_document->fps());
+            if (!timelineList.contains(start)) timelineList.append(start);
+            if (!timelineList.contains(end)) timelineList.append(end);
+        }
+    }
+    qSort(timelineList);
+    kDebug() << "// COMPARE:\n" << times << "\n" << timelineList << "\n-------------------";
+    if (times != timelineList) KMessageBox::sorry(this, i18n("error"), i18n("TRACTOR"));
+}
+
+void CustomTrackView::insertZoneOverwrite(QStringList data, int in)
+{
+    if (data.isEmpty()) return;
+    DocClipBase *clip = m_document->getBaseClip(data.at(0));
+    ItemInfo info;
+    info.startPos = GenTime(in, m_document->fps());
+    info.cropStart = GenTime(data.at(1).toInt(), m_document->fps());
+    info.endPos = info.startPos + GenTime(data.at(2).toInt(), m_document->fps()) - info.cropStart;
+    info.cropDuration = info.endPos - info.startPos;
+    info.track = m_selectedTrack;
+    QUndoCommand *addCommand = new QUndoCommand();
+    addCommand->setText(i18n("Insert clip"));
+    adjustTimelineClips(OVERWRITEEDIT, NULL, info, addCommand);
+    new AddTimelineClipCommand(this, clip->toXML(), clip->getId(), info, EffectsList(), true, false, true, false, addCommand);
+    m_commandStack->push(addCommand);
+
+    selectClip(true, false, m_selectedTrack, in);
+    // Automatic audio split
+    if (KdenliveSettings::splitaudio())
+        splitAudio();
+}
+
+void CustomTrackView::clearSelection()
+{
+    resetSelectionGroup();
+    scene()->clearSelection();
+    m_dragItem = NULL;
+    emit clipItemSelected(NULL);
+}
+
+void CustomTrackView::updatePalette()
+{
+    if (m_cursorLine) {
+        QPen pen1 = QPen();
+        pen1.setWidth(1);
+        pen1.setColor(palette().text().color());
+        m_cursorLine->setPen(pen1);
+    }
+}
+
+void CustomTrackView::removeTipAnimation()
+{
+    if (m_visualTip) {
+        scene()->removeItem(m_visualTip);
+        m_animationTimer->stop();
+        delete m_animation;
+        m_animation = NULL;
+        delete m_visualTip;
+        m_visualTip = NULL;
+    }
+}
+
+void CustomTrackView::setTipAnimation(AbstractClipItem *clip, OPERATIONTYPE mode, const double size)
+{
+    if (m_visualTip == NULL) {
+        QRectF rect = clip->sceneBoundingRect();
+        m_animation = new QGraphicsItemAnimation;
+        m_animation->setTimeLine(m_animationTimer);
+        m_animation->setScaleAt(1, 1, 1);
+        QPolygon polygon;
+        switch (mode) {
+        case FADEIN:
+        case FADEOUT:
+            m_visualTip = new QGraphicsEllipseItem(-size, -size, size * 2, size * 2);
+            ((QGraphicsEllipseItem*) m_visualTip)->setBrush(m_tipColor);
+            ((QGraphicsEllipseItem*) m_visualTip)->setPen(m_tipPen);
+            if (mode == FADEIN)
+                m_visualTip->setPos(rect.x() + ((ClipItem *) clip)->fadeIn(), rect.y());
+            else
+                m_visualTip->setPos(rect.right() - ((ClipItem *) clip)->fadeOut(), rect.y());
+
+            m_animation->setScaleAt(.5, 2, 2);
+            break;
+        case RESIZESTART:
+        case RESIZEEND:
+            polygon << QPoint(0, - size * 2);
+            if (mode == RESIZESTART)
+                polygon << QPoint(size * 2, 0);
+            else
+                polygon << QPoint(- size * 2, 0);
+            polygon << QPoint(0, size * 2);
+            polygon << QPoint(0, - size * 2);
+
+            m_visualTip = new QGraphicsPolygonItem(polygon);
+            ((QGraphicsPolygonItem*) m_visualTip)->setBrush(m_tipColor);
+            ((QGraphicsPolygonItem*) m_visualTip)->setPen(m_tipPen);
+            if (mode == RESIZESTART)
+                m_visualTip->setPos(rect.x(), rect.y() + rect.height() / 2);
+            else
+                m_visualTip->setPos(rect.right(), rect.y() + rect.height() / 2);
+
+            m_animation->setScaleAt(.5, 2, 1);
+            break;
+        case TRANSITIONSTART:
+        case TRANSITIONEND:
+            polygon << QPoint(0, - size * 2);
+            if (mode == TRANSITIONSTART)
+                polygon << QPoint(size * 2, 0);
+            else
+                polygon << QPoint(- size * 2, 0);
+            polygon << QPoint(0, 0);
+            polygon << QPoint(0, - size * 2);
+
+            m_visualTip = new QGraphicsPolygonItem(polygon);
+            ((QGraphicsPolygonItem*) m_visualTip)->setBrush(m_tipColor);
+            ((QGraphicsPolygonItem*) m_visualTip)->setPen(m_tipPen);
+            if (mode == TRANSITIONSTART)
+                m_visualTip->setPos(rect.x(), rect.bottom());
+            else
+                m_visualTip->setPos(rect.right(), rect.bottom());
+
+            m_animation->setScaleAt(.5, 2, 2);
+            break;
+        default:
+            delete m_animation;
+            return;
+        }
+
+        m_visualTip->setFlags(QGraphicsItem::ItemIgnoresTransformations);
+        m_visualTip->setZValue(100);
+        scene()->addItem(m_visualTip);
+        m_animation->setItem(m_visualTip);
+        m_animationTimer->start();
+    }
+}
+
+bool CustomTrackView::hasAudio(int track) const
+{
+    QRectF rect(0, (double)(track * m_tracksHeight + 1), (double) sceneRect().width(), (double)(m_tracksHeight - 1));
+    QList<QGraphicsItem *> collisions = scene()->items(rect, Qt::IntersectsItemBoundingRect);
+    QGraphicsItem *item;
+    for (int i = 0; i < collisions.count(); i++) {
+        item = collisions.at(i);
+        if (!item->isEnabled()) continue;
+        if (item->type() == AVWIDGET) {
+            ClipItem *clip = static_cast <ClipItem *>(item);
+            if (!clip->isVideoOnly() && (clip->clipType() == AUDIO || clip->clipType() == AV || clip->clipType() == PLAYLIST)) return true;
+        }
+    }
+    return false;
+}