]> git.sesse.net Git - kdenlive/blobdiff - src/customtrackview.cpp
Check & update clip length in timeline when doing a "clip reload" from project tree...
[kdenlive] / src / customtrackview.cpp
index c58d32b03e2100cefe486bf252c00c41cc7efcdb..c74204daabbfb2cb824379bd8a76c3f71b096fcf 100644 (file)
  *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA          *
  ***************************************************************************/
 
-#include <QMouseEvent>
-#include <QStylePainter>
-#include <QGraphicsItem>
-#include <QDomDocument>
-#include <QScrollBar>
-#include <QApplication>
-#include <QInputDialog>
-
-#include <KDebug>
-#include <KLocale>
-#include <KUrl>
-#include <KIcon>
-#include <KCursor>
 
 #include "customtrackview.h"
 #include "customtrackscene.h"
@@ -52,8 +39,6 @@
 #include "razorclipcommand.h"
 #include "kdenlivesettings.h"
 #include "transition.h"
-#include "clipitem.h"
-#include "customtrackview.h"
 #include "clipmanager.h"
 #include "renderer.h"
 #include "markerdialog.h"
 #include "movegroupcommand.h"
 #include "ui_addtrack_ui.h"
 #include "initeffects.h"
+#include "locktrackcommand.h"
+#include "groupclipscommand.h"
+#include "splitaudiocommand.h"
+#include "changecliptypecommand.h"
+
+#include <KDebug>
+#include <KLocale>
+#include <KUrl>
+#include <KIcon>
+#include <KCursor>
+
+#include <QMouseEvent>
+#include <QStylePainter>
+#include <QGraphicsItem>
+#include <QDomDocument>
+#include <QScrollBar>
+#include <QApplication>
+#include <QInputDialog>
+
 
 //TODO:
 // disable animation if user asked it in KDE's global settings
 // const bool animate = KGlobalSettings::graphicEffectsLevel() & KGlobalSettings::SimpleAnimationEffects;
 // const int duration = animate ? 1500 : 1;
 
-CustomTrackView::CustomTrackView(KdenliveDoc *doc, CustomTrackScene* projectscene, QWidget *parent)
-        : QGraphicsView(projectscene, parent), m_scene(projectscene), m_cursorPos(0), m_cursorLine(NULL), m_operationMode(NONE), m_dragItem(NULL), m_visualTip(NULL), m_moveOpMode(NONE), m_animation(NULL), m_projectDuration(0), m_clickPoint(QPoint()), m_document(doc), m_autoScroll(KdenliveSettings::autoscroll()), m_tracksHeight(KdenliveSettings::trackheight()), m_tool(SELECTTOOL), m_dragGuide(NULL), m_findIndex(0), m_menuPosition(QPoint()), m_blockRefresh(false), m_selectionGroup(NULL), m_selectedTrack(0), m_copiedItems(QList<AbstractClipItem *> ()), m_scrollOffset(0) {
+CustomTrackView::CustomTrackView(KdenliveDoc *doc, CustomTrackScene* projectscene, QWidget *parent) :
+        QGraphicsView(projectscene, parent),
+        m_tracksHeight(KdenliveSettings::trackheight()),
+        m_projectDuration(0),
+        m_cursorPos(0),
+        m_document(doc),
+        m_scene(projectscene),
+        m_cursorLine(NULL),
+        m_operationMode(NONE),
+        m_moveOpMode(NONE),
+        m_dragItem(NULL),
+        m_dragGuide(NULL),
+        m_visualTip(NULL),
+        m_animation(NULL),
+        m_clickPoint(),
+        m_autoScroll(KdenliveSettings::autoscroll()),
+        m_changeSpeedAction(NULL),
+        m_pasteEffectsAction(NULL),
+        m_ungroupAction(NULL),
+        m_scrollOffset(0),
+        m_clipDrag(false),
+        m_findIndex(0),
+        m_tool(SELECTTOOL),
+        m_copiedItems(),
+        m_menuPosition(),
+        m_blockRefresh(false),
+        m_selectionGroup(NULL)
+{
     if (doc) m_commandStack = doc->commandStack();
-    else m_commandStack == NULL;
+    else m_commandStack = NULL;
     setMouseTracking(true);
     setAcceptDrops(true);
     m_animationTimer = new QTimeLine(800);
@@ -104,30 +134,47 @@ CustomTrackView::CustomTrackView(KdenliveDoc *doc, CustomTrackScene* projectscen
     KIcon spacerIcon("kdenlive-spacer-tool");
     m_spacerCursor = QCursor(spacerIcon.pixmap(22, 22));
     verticalScrollBar()->setTracking(true);
-    connect(verticalScrollBar(), SIGNAL(valueChanged(int)), this, SLOT(slotRefreshGuides()));
+    // Line below was supposed to scroll guides label with scrollbar, not implemented yet
+    //connect(verticalScrollBar(), SIGNAL(valueChanged(int)), this, SLOT(slotRefreshGuides()));
     connect(&m_scrollTimer, SIGNAL(timeout()), this, SLOT(slotCheckMouseScrolling()));
     m_scrollTimer.setInterval(100);
     m_scrollTimer.setSingleShot(true);
 }
 
-CustomTrackView::~CustomTrackView() {
+CustomTrackView::~CustomTrackView()
+{
     qDeleteAll(m_guides);
 }
 
-void CustomTrackView::setDocumentModified() {
+void CustomTrackView::setDocumentModified()
+{
     m_document->setModified(true);
 }
 
-void CustomTrackView::setContextMenu(QMenu *timeline, QMenu *clip, QMenu *transition) {
+void CustomTrackView::setContextMenu(QMenu *timeline, QMenu *clip, QMenu *transition, QActionGroup *clipTypeGroup)
+{
     m_timelineContextMenu = timeline;
     m_timelineContextClipMenu = clip;
+    m_clipTypeGroup = clipTypeGroup;
+    QList <QAction *> list = m_timelineContextClipMenu->actions();
+    for (int i = 0; i < list.count(); i++) {
+        if (list.at(i)->data().toString() == "change_speed") m_changeSpeedAction = list.at(i);
+        else if (list.at(i)->data().toString() == "paste_effects") m_pasteEffectsAction = list.at(i);
+        else if (list.at(i)->data().toString() == "ungroup_clip") m_ungroupAction = list.at(i);
+    }
+
     m_timelineContextTransitionMenu = transition;
-    QList <QAction *> list = m_timelineContextTransitionMenu->actions();
-    for (int i = 0; i < list.count(); i++)
-        if (list.at(i)->data().toString() == "auto") m_autoTransition = list.at(i);
+    list = m_timelineContextTransitionMenu->actions();
+    for (int i = 0; i < list.count(); i++) {
+        if (list.at(i)->data().toString() == "auto") {
+            m_autoTransition = list.at(i);
+            break;
+        }
+    }
 }
 
-void CustomTrackView::checkAutoScroll() {
+void CustomTrackView::checkAutoScroll()
+{
     m_autoScroll = KdenliveSettings::autoscroll();
 }
 
@@ -135,7 +182,8 @@ void CustomTrackView::checkAutoScroll() {
     return m_scene->m_tracksList;
 }*/
 
-void CustomTrackView::checkTrackHeight() {
+void CustomTrackView::checkTrackHeight()
+{
     if (m_tracksHeight == KdenliveSettings::trackheight()) return;
     m_tracksHeight = KdenliveSettings::trackheight();
     emit trackHeightChanged();
@@ -170,12 +218,6 @@ void CustomTrackView::checkTrackHeight() {
     update();
 }
 
-// virtual
-void CustomTrackView::resizeEvent(QResizeEvent * event) {
-    QGraphicsView::resizeEvent(event);
-}
-
-// virtual
 /** Zoom or move viewport on mousewheel
  *
  * If mousewheel+Ctrl, zooms in/out on the timeline.
@@ -184,7 +226,8 @@ void CustomTrackView::resizeEvent(QResizeEvent * event) {
  * opposite on up/forward.
  *
  * See also http://www.kdenlive.org/mantis/view.php?id=265 */
-void CustomTrackView::wheelEvent(QWheelEvent * e) {
+void CustomTrackView::wheelEvent(QWheelEvent * e)
+{
     if (e->modifiers() == Qt::ControlModifier) {
         if (e->delta() > 0) emit zoomIn();
         else emit zoomOut();
@@ -194,7 +237,8 @@ void CustomTrackView::wheelEvent(QWheelEvent * e) {
     }
 }
 
-int CustomTrackView::getPreviousVideoTrack(int track) {
+int CustomTrackView::getPreviousVideoTrack(int track)
+{
     track = m_document->tracksCount() - track - 1;
     track --;
     for (int i = track; i > -1; i--) {
@@ -204,7 +248,8 @@ int CustomTrackView::getPreviousVideoTrack(int track) {
 }
 
 
-void CustomTrackView::slotCheckMouseScrolling() {
+void CustomTrackView::slotCheckMouseScrolling()
+{
     if (m_scrollOffset == 0) {
         m_scrollTimer.stop();
         return;
@@ -213,7 +258,8 @@ void CustomTrackView::slotCheckMouseScrolling() {
     m_scrollTimer.start();
 }
 
-void CustomTrackView::slotCheckPositionScrolling() {
+void CustomTrackView::slotCheckPositionScrolling()
+{
     // If mouse is at a border of the view, scroll
     if (m_moveOpMode != SEEK) return;
     int pos = cursorPos();
@@ -232,12 +278,14 @@ void CustomTrackView::slotCheckPositionScrolling() {
 
 // virtual
 
-void CustomTrackView::mouseMoveEvent(QMouseEvent * event) {
+void CustomTrackView::mouseMoveEvent(QMouseEvent * event)
+{
     int pos = event->x();
     int mappedXPos = (int)(mapToScene(event->pos()).x() + 0.5);
     emit mousePosition(mappedXPos);
+
     if (event->buttons() & Qt::MidButton) return;
-    if ((event->modifiers() == Qt::ControlModifier && m_tool != SPACERTOOL) || event->modifiers() == Qt::ShiftModifier) {
+    if (m_operationMode == RUBBERSELECTION || (event->modifiers() == Qt::ControlModifier && m_tool != SPACERTOOL)) {
         QGraphicsView::mouseMoveEvent(event);
         m_moveOpMode = NONE;
         return;
@@ -259,9 +307,11 @@ void CustomTrackView::mouseMoveEvent(QMouseEvent * event) {
 
             } else if (m_operationMode == RESIZESTART && move) {
                 double snappedPos = getSnapPointForPos(mappedXPos);
+                m_document->renderer()->pause();
                 m_dragItem->resizeStart((int)(snappedPos));
             } else if (m_operationMode == RESIZEEND && move) {
                 double snappedPos = getSnapPointForPos(mappedXPos);
+                m_document->renderer()->pause();
                 m_dragItem->resizeEnd((int)(snappedPos));
             } else if (m_operationMode == FADEIN && move) {
                 ((ClipItem*) m_dragItem)->setFadeIn((int)(mappedXPos - m_dragItem->startPos().frames(m_document->fps())));
@@ -276,15 +326,15 @@ void CustomTrackView::mouseMoveEvent(QMouseEvent * event) {
                 m_dragItem->updateKeyFramePos(keyFramePos, pos);
             }
 
-            if (m_animation) delete m_animation;
+            delete m_animation;
             m_animation = NULL;
-            if (m_visualTip) delete m_visualTip;
+            delete m_visualTip;
             m_visualTip = NULL;
             return;
         } else if (m_operationMode == MOVEGUIDE) {
-            if (m_animation) delete m_animation;
+            delete m_animation;
             m_animation = NULL;
-            if (m_visualTip) delete m_visualTip;
+            delete m_visualTip;
             m_visualTip = NULL;
             QGraphicsView::mouseMoveEvent(event);
             return;
@@ -335,7 +385,7 @@ void CustomTrackView::mouseMoveEvent(QMouseEvent * event) {
             return;
         } else {
             if (m_visualTip) {
-                if (m_animation) delete m_animation;
+                delete m_animation;
                 m_animation = NULL;
                 m_animationTimer->stop();
                 delete m_visualTip;
@@ -496,7 +546,7 @@ void CustomTrackView::mouseMoveEvent(QMouseEvent * event) {
             slotCheckPositionScrolling();
         } else m_moveOpMode = NONE;
         if (m_visualTip) {
-            if (m_animation) delete m_animation;
+            delete m_animation;
             m_animationTimer->stop();
             m_animation = NULL;
             delete m_visualTip;
@@ -509,7 +559,9 @@ void CustomTrackView::mouseMoveEvent(QMouseEvent * event) {
 }
 
 // virtual
-void CustomTrackView::mousePressEvent(QMouseEvent * event) {
+void CustomTrackView::mousePressEvent(QMouseEvent * event)
+{
+    kDebug() << "mousePressEvent STARTED";
     m_menuPosition = QPoint();
     m_blockRefresh = true;
     bool collision = false;
@@ -540,8 +592,12 @@ void CustomTrackView::mousePressEvent(QMouseEvent * event) {
         return;
     }
 
-    if (event->modifiers() == Qt::ShiftModifier && collisionList.count() == 0) {
+    if (event->modifiers() & Qt::ShiftModifier && collisionList.count() == 0) {
         setDragMode(QGraphicsView::RubberBandDrag);
+        if (!(event->modifiers() & Qt::ControlModifier)) {
+            resetSelectionGroup();
+            scene()->clearSelection();
+        }
         QGraphicsView::mousePressEvent(event);
         m_blockRefresh = false;
         m_operationMode = RUBBERSELECTION;
@@ -563,16 +619,21 @@ void CustomTrackView::mousePressEvent(QMouseEvent * event) {
         return;
     }
 
-    // Find first clip or transition under mouse
-    int i = 0;
+    // Find first clip, transition or group under mouse
+    int ct = 0;
     m_dragItem = NULL;
-    while (i < collisionList.count()) {
-        if (collisionList.at(i)->type() == AVWIDGET || collisionList.at(i)->type() == TRANSITIONWIDGET) {
-            m_dragItem = static_cast <AbstractClipItem *>(collisionList.at(i));
+    AbstractGroupItem *dragGroup = NULL;
+    while (ct < collisionList.count()) {
+        if (collisionList.at(ct)->type() == AVWIDGET || collisionList.at(ct)->type() == TRANSITIONWIDGET) {
+            m_dragItem = static_cast <AbstractClipItem *>(collisionList.at(ct));
             m_dragItemInfo = m_dragItem->info();
+            if (m_dragItem->parentItem() && m_dragItem->parentItem()->type() == GROUPWIDGET && m_dragItem->parentItem() != m_selectionGroup) {
+                //kDebug()<<"// KLIK FOUND GRP: "<<m_dragItem->sceneBoundingRect();
+                dragGroup = static_cast <AbstractGroupItem *>(m_dragItem->parentItem());
+            }
             break;
         }
-        i++;
+        ct++;
     }
 
     if (m_dragItem && m_dragItem->type() == TRANSITIONWIDGET) {
@@ -584,14 +645,15 @@ void CustomTrackView::mousePressEvent(QMouseEvent * event) {
     // context menu requested
     if (event->button() == Qt::RightButton) {
         if (m_dragItem) {
-            if (!m_dragItem->isSelected()) {
+            if (dragGroup) dragGroup->setSelected(true);
+            else if (!m_dragItem->isSelected()) {
                 resetSelectionGroup(false);
                 m_scene->clearSelection();
                 m_dragItem->setSelected(true);
             }
         }
         m_operationMode = NONE;
-        displayContextMenu(event->globalPos(), m_dragItem);
+        displayContextMenu(event->globalPos(), m_dragItem, dragGroup);
         m_menuPosition = m_clickEvent;
         m_dragItem = NULL;
         event->accept();
@@ -605,94 +667,112 @@ void CustomTrackView::mousePressEvent(QMouseEvent * event) {
         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 + 1, sceneRect().width() - m_clickEvent.x(), m_tracksHeight - 2);
+                selection = items(m_clickEvent.x(), track * m_tracksHeight + m_tracksHeight / 2, mapFromScene(sceneRect().width(), 0).x() - m_clickEvent.x(), m_tracksHeight / 2 - 2);
+
+                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 {
                 // Select all items on all tracks after click position
-                selection = items(event->pos().x(), 1, sceneRect().width() - event->pos().x(), sceneRect().height());
+                selection = items(event->pos().x(), 1, mapFromScene(sceneRect().width(), 0).x() - event->pos().x(), sceneRect().height());
+                kDebug() << "SELELCTING ELEMENTS WITHIN =" << event->pos().x() << "/" <<  1 << ", " << mapFromScene(sceneRect().width(), 0).x() - event->pos().x() << "/" << sceneRect().height();
             }
-            m_selectionGroup = new AbstractGroupItem(m_document->fps());
-            scene()->addItem(m_selectionGroup);
+
+            resetSelectionGroup(false);
+            m_scene->clearSelection();
 
             for (int i = 0; i < selection.count(); i++) {
-                if (selection.at(i)->type() == AVWIDGET || selection.at(i)->type() == TRANSITIONWIDGET) {
-                    m_selectionGroup->addToGroup(selection.at(i));
-                    selection.at(i)->setFlags(QGraphicsItem::ItemIsSelectable);
+                if (selection.at(i)->type() == AVWIDGET || selection.at(i)->type() == TRANSITIONWIDGET || selection.at(i)->type() == GROUPWIDGET) {
+                    selection.at(i)->setSelected(true);
                 }
             }
-            QPointF top = m_selectionGroup->boundingRect().topLeft();
-            m_selectionGroup->setPos(top);
-            m_selectionGroup->translate(-top.x(), -top.y() + 1);
+            groupSelectedItems(true);
             m_operationMode = SPACER;
         } else setCursorPos((int)(mapToScene(event->x(), 0).x()));
+        kDebug() << "END mousePress EVENT ";
         return;
     }
 
     // Razor tool
-    if (m_tool == RAZORTOOL) {
+    if (m_tool == RAZORTOOL && m_dragItem) {
         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;
         }
         AbstractClipItem *clip = static_cast <AbstractClipItem *>(m_dragItem);
-        RazorClipCommand* command = new RazorClipCommand(this, clip->info(), GenTime((int)(mapToScene(event->pos()).x()), m_document->fps()), true);
+        RazorClipCommand* command = new RazorClipCommand(this, clip->info(), GenTime((int)(mapToScene(event->pos()).x()), m_document->fps()));
+        m_document->renderer()->pause();
         m_commandStack->push(command);
         m_document->setModified(true);
         m_dragItem = NULL;
         event->accept();
         return;
     }
-    updateSnapPoints(m_dragItem);
-    if (m_dragItem->type() == AVWIDGET) emit clipItemSelected((ClipItem*) m_dragItem);
+
+    if (dragGroup == NULL) updateSnapPoints(m_dragItem);
+    else {
+        QList <GenTime> offsetList;
+        QList<QGraphicsItem *> children = dragGroup->childItems();
+        for (int i = 0; i < children.count(); i++) {
+            if (children.at(i)->type() == AVWIDGET || children.at(i)->type() == TRANSITIONWIDGET) {
+                AbstractClipItem *item = static_cast <AbstractClipItem *>(children.at(i));
+                offsetList.append(item->startPos());
+                offsetList.append(item->endPos());
+            }
+        }
+        if (!offsetList.isEmpty()) {
+            qSort(offsetList);
+            GenTime startOffset = offsetList.takeFirst();
+            QList <GenTime> cleandOffsetList;
+            for (int k = 0; k < offsetList.size(); k++) {
+                GenTime newoffset = offsetList.at(k) - startOffset;
+                if (newoffset != GenTime() && !cleandOffsetList.contains(newoffset)) {
+                    cleandOffsetList.append(newoffset);
+                }
+            }
+            updateSnapPoints(NULL, cleandOffsetList, true);
+        }
+    }
+
+    if (m_dragItem->type() == AVWIDGET && !m_dragItem->isItemLocked()) emit clipItemSelected((ClipItem*) m_dragItem);
     else emit clipItemSelected(NULL);
 
-    if (event->modifiers() != Qt::ControlModifier && (m_dragItem->group() || m_dragItem->isSelected())) {
+    if (event->modifiers() != Qt::ControlModifier && (m_dragItem->isSelected() || (dragGroup && dragGroup->isSelected()))) {
         // If clicked item is selected, allow move
-        event->accept();
-        if (m_selectionGroup) m_selectionGroup->setSelected(true);
+        if (dragGroup) dragGroup->setSelected(true);
+        //event->accept();
         if (m_operationMode == NONE) QGraphicsView::mousePressEvent(event);
     } else {
         resetSelectionGroup();
         if (event->modifiers() != Qt::ControlModifier) m_scene->clearSelection();
-        m_dragItem->setSelected(!m_dragItem->isSelected());
+        dragGroup = NULL;
+        if (m_dragItem->parentItem() && m_dragItem->parentItem()->type() == GROUPWIDGET) {
+            //kDebug()<<"// KLIK FOUND GRP: "<<m_dragItem->sceneBoundingRect();
+            dragGroup = static_cast <AbstractGroupItem *>(m_dragItem->parentItem());
+        }
+        bool selected = !m_dragItem->isSelected();
+        if (dragGroup) dragGroup->setSelected(selected);
+        else m_dragItem->setSelected(selected);
+
         groupSelectedItems();
+        ClipItem *clip = static_cast <ClipItem *>(m_dragItem);
+        updateClipTypeActions(dragGroup == NULL ? clip : NULL);
+        m_changeSpeedAction->setEnabled(clip->clipType() == AV || clip->clipType() == VIDEO);
+        m_pasteEffectsAction->setEnabled(m_copiedItems.count() == 1);
     }
 
     m_clickPoint = QPoint((int)(mapToScene(event->pos()).x() - m_dragItem->startPos().frames(m_document->fps())), (int)(event->pos().y() - m_dragItem->pos().y()));
-    /*
-                        if (!item->isSelected()) {
-
-                            if (event->modifiers() != Qt::ControlModifier) {
-                                QList<QGraphicsItem *> itemList = items();
-                                for (int i = 0; i < itemList.count(); i++) {
-                                    itemList.at(i)->setSelected(false);
-                                    itemList.at(i)->update();
-                                }
-                            }
-                            item->setSelected(true);
-                            item->update();
-                        }
-
-
-
-                        m_clickPoint = QPoint((int)(mapToScene(event->pos()).x() - m_dragItem->startPos().frames(m_document->fps()) * m_scale), (int)(event->pos().y() - m_dragItem->pos().y()));
-                        m_dragItemInfo.startPos = m_dragItem->startPos();
-                        m_dragItemInfo.endPos = m_dragItem->endPos();
-                        m_dragItemInfo.track = m_dragItem->track();
-
-                        m_selectedClipList.clear();
-                        QList<QGraphicsItem *> selected = scene()->selectedItems();
-                        for (int i = 0; i < selected.count(); i++) {
-                            if (selected.at(i)->type() == AVWIDGET || selected.at(i)->type() == TRANSITIONWIDGET)
-                                m_selectedClipList.append(static_cast <AbstractClipItem *>(selected.at(i)));
-                        }
-          */
     m_operationMode = m_dragItem->operationMode(mapToScene(event->pos()));
 
     if (m_operationMode == KEYFRAME) {
@@ -701,7 +781,7 @@ void CustomTrackView::mousePressEvent(QMouseEvent * event) {
         return;
     } else if (m_operationMode == MOVE) {
         setCursor(Qt::ClosedHandCursor);
-    } else if (m_operationMode == TRANSITIONSTART) {
+    } else if (m_operationMode == TRANSITIONSTART && event->modifiers() != Qt::ControlModifier) {
         ItemInfo info;
         info.startPos = m_dragItem->startPos();
         info.track = m_dragItem->track();
@@ -712,8 +792,22 @@ void CustomTrackView::mousePressEvent(QMouseEvent * event) {
             info.endPos = transitionClip->endPos();
         } else info.endPos = info.startPos + GenTime(65, m_document->fps());
         if (info.endPos == info.startPos) info.endPos = info.startPos + GenTime(65, m_document->fps());
-        slotAddTransition((ClipItem *) m_dragItem, info, transitiontrack);
-    } else if (m_operationMode == TRANSITIONEND) {
+        // Check there is no other transition at that place
+        double startY = info.track * m_tracksHeight + 1 + m_tracksHeight / 2;
+        QRectF r(info.startPos.frames(m_document->fps()), startY, (info.endPos - info.startPos).frames(m_document->fps()), m_tracksHeight / 2);
+        QList<QGraphicsItem *> selection = m_scene->items(r);
+        bool transitionAccepted = true;
+        for (int i = 0; i < selection.count(); i++) {
+            if (selection.at(i)->type() == TRANSITIONWIDGET) {
+                Transition *tr = static_cast <Transition *>(selection.at(i));
+                if (tr->startPos() - info.startPos > GenTime(5, m_document->fps())) {
+                    if (tr->startPos() < info.endPos) info.endPos = tr->startPos();
+                } else transitionAccepted = false;
+            }
+        }
+        if (transitionAccepted) slotAddTransition((ClipItem *) m_dragItem, info, transitiontrack);
+        else emit displayMessage(i18n("Cannot add transition"), ErrorMessage);
+    } else if (m_operationMode == TRANSITIONEND && event->modifiers() != Qt::ControlModifier) {
         ItemInfo info;
         info.endPos = GenTime(m_dragItem->endPos().frames(m_document->fps()), m_document->fps());
         info.track = m_dragItem->track();
@@ -726,7 +820,23 @@ void CustomTrackView::mousePressEvent(QMouseEvent * event) {
         if (info.endPos == info.startPos) info.startPos = info.endPos - GenTime(65, m_document->fps());
         QDomElement transition = MainWindow::transitions.getEffectByName("Luma").cloneNode().toElement();
         EffectsList::setParameter(transition, "reverse", "1");
-        slotAddTransition((ClipItem *) m_dragItem, info, transitiontrack, transition);
+
+        // Check there is no other transition at that place
+        double startY = info.track * m_tracksHeight + 1 + m_tracksHeight / 2;
+        QRectF r(info.startPos.frames(m_document->fps()), startY, (info.endPos - info.startPos).frames(m_document->fps()), m_tracksHeight / 2);
+        QList<QGraphicsItem *> selection = m_scene->items(r);
+        bool transitionAccepted = true;
+        for (int i = 0; i < selection.count(); i++) {
+            if (selection.at(i)->type() == TRANSITIONWIDGET) {
+                Transition *tr = static_cast <Transition *>(selection.at(i));
+                if (info.endPos - tr->endPos() > GenTime(5, m_document->fps())) {
+                    if (tr->endPos() > info.startPos) info.startPos = tr->endPos();
+                } else transitionAccepted = false;
+            }
+        }
+        if (transitionAccepted) slotAddTransition((ClipItem *) m_dragItem, info, transitiontrack, transition);
+        else emit displayMessage(i18n("Cannot add transition"), ErrorMessage);
+
     } else if ((m_operationMode == RESIZESTART || m_operationMode == RESIZEEND) && m_selectionGroup) {
         resetSelectionGroup(false);
         m_dragItem->setSelected(true);
@@ -737,52 +847,104 @@ void CustomTrackView::mousePressEvent(QMouseEvent * event) {
     //QGraphicsView::mousePressEvent(event);
 }
 
-void CustomTrackView::resetSelectionGroup(bool selectItems) {
+void CustomTrackView::resetSelectionGroup(bool selectItems)
+{
     if (m_selectionGroup) {
         // delete selection group
         bool snap = KdenliveSettings::snaptopoints();
         KdenliveSettings::setSnaptopoints(false);
+
         QList<QGraphicsItem *> children = m_selectionGroup->childItems();
+        scene()->destroyItemGroup(m_selectionGroup);
         for (int i = 0; i < children.count(); i++) {
-            children.at(i)->setFlags(QGraphicsItem::ItemIsMovable | QGraphicsItem::ItemIsSelectable);
-            children.at(i)->setSelected(selectItems);
+            if (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)->setSelected(selectItems);
+                }
+            } else if (children.at(i)->type() == GROUPWIDGET) {
+                children.at(i)->setFlags(QGraphicsItem::ItemIsMovable | QGraphicsItem::ItemIsSelectable);
+                children.at(i)->setSelected(selectItems);
+            }
         }
-        scene()->destroyItemGroup(m_selectionGroup);
         m_selectionGroup = NULL;
         KdenliveSettings::setSnaptopoints(snap);
     }
 }
 
-void CustomTrackView::groupSelectedItems() {
+void CustomTrackView::groupSelectedItems(bool force, bool createNewGroup)
+{
     if (m_selectionGroup) {
         kDebug() << "///// ERROR, TRYING TO OVERRIDE EXISTING GROUP";
         return;
     }
     QList<QGraphicsItem *> selection = m_scene->selectedItems();
-    if (selection.count() > 1) {
-        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) {
-                m_selectionGroup->addToGroup(selection.at(i));
-                selection.at(i)->setFlags(QGraphicsItem::ItemIsSelectable);
-            }
+    if (selection.isEmpty()) return;
+    QPointF top = selection.at(0)->sceneBoundingRect().topLeft();
+    // 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());
         }
+    }
+
+    if (force || selection.count() > 1) {
+        bool snap = KdenliveSettings::snaptopoints();
+        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);
+            scene()->addItem(newGroup);
+
+            // 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)))) {
+                    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()));
+            }
+            if (!groups.isEmpty()) {
+                // ungroup previous groups
+                while (!groups.isEmpty()) {
+                    AbstractGroupItem *grp = groups.takeFirst();
+                    m_document->clipManager()->removeGroup(grp);
+                    scene()->destroyItemGroup(grp);
+                }
+                selection = m_scene->selectedItems();
+            }
 
-        if (m_selectionGroup) {
-            bool snap = KdenliveSettings::snaptopoints();
-            KdenliveSettings::setSnaptopoints(false);
-            QPointF top = m_selectionGroup->sceneBoundingRect().topLeft();
+            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);
+                }
+            }
+            KdenliveSettings::setSnaptopoints(snap);
+        } else {
+            m_selectionGroup = new AbstractGroupItem(m_document->fps());
             m_selectionGroup->translate(-top.x(), -top.y() + 1);
-            m_selectionGroup->setPos(top);
-            m_selectionGroupInfo.startPos = GenTime(m_selectionGroup->scenePos().x(), m_document->fps());
-            m_selectionGroupInfo.track = m_selectionGroup->track();
+            m_selectionGroup->setPos(top.x(), top.y() - 1);
+            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)) {
+                    m_selectionGroup->addToGroup(selection.at(i));
+                    selection.at(i)->setFlags(QGraphicsItem::ItemIsSelectable);
+                }
+            }
             KdenliveSettings::setSnaptopoints(snap);
+            if (m_selectionGroup) {
+                m_selectionGroupInfo.startPos = GenTime(m_selectionGroup->scenePos().x(), m_document->fps());
+                m_selectionGroupInfo.track = m_selectionGroup->track();
+            }
         }
     } else resetSelectionGroup();
 }
 
-void CustomTrackView::mouseDoubleClickEvent(QMouseEvent *event) {
+void CustomTrackView::mouseDoubleClickEvent(QMouseEvent *event)
+{
     kDebug() << "++++++++++++ DBL CLK";
     if (m_dragItem && m_dragItem->hasKeyFrames()) {
         if (m_moveOpMode == KEYFRAME) {
@@ -819,38 +981,46 @@ void CustomTrackView::mouseDoubleClickEvent(QMouseEvent *event) {
         }
     } else if (m_dragItem) {
         ClipDurationDialog d(m_dragItem, m_document->timecode(), this);
+        GenTime minimum;
+        GenTime maximum;
+        if (m_dragItem->type() == TRANSITIONWIDGET) {
+            getTransitionAvailableSpace(m_dragItem, minimum, maximum);
+        } else {
+            getClipAvailableSpace(m_dragItem, minimum, maximum);
+        }
+        //kDebug()<<"// GOT MOVE POS: "<<minimum.frames(25)<<" - "<<maximum.frames(25);
+        d.setMargins(minimum, maximum);
         if (d.exec() == QDialog::Accepted) {
-            if (d.startPos() != m_dragItem->startPos()) {
-                if (m_dragItem->type() == AVWIDGET) {
-                    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 = m_dragItem->endPos() + (endInfo.startPos - startInfo.startPos);
-                    endInfo.track = m_dragItem->track();
-                    MoveClipCommand *command = new MoveClipCommand(this, startInfo, endInfo, true);
-                    m_commandStack->push(command);
-                } else {
-                    //TODO: move transition
+            if (m_dragItem->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);
+                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.startPos() != clipInfo.startPos) {
+                    ItemInfo startInfo = clipInfo;
+                    clipInfo.startPos = d.startPos();
+                    clipInfo.endPos = m_dragItem->endPos() + (clipInfo.startPos - startInfo.startPos);
+                    new MoveClipCommand(this, startInfo, clipInfo, true, moveCommand);
                 }
-            }
-            if (d.duration() != m_dragItem->duration()) {
-                if (m_dragItem->type() == AVWIDGET) {
-                    ItemInfo startInfo;
-                    startInfo.startPos = m_dragItem->startPos();
-                    startInfo.endPos = m_dragItem->endPos();
-                    startInfo.track = m_dragItem->track();
-                    ItemInfo endInfo;
-                    endInfo.startPos = startInfo.startPos;
-                    endInfo.endPos = endInfo.startPos + d.duration();
-                    endInfo.track = m_dragItem->track();
-                    ResizeClipCommand *command = new ResizeClipCommand(this, startInfo, endInfo, true);
-                    m_commandStack->push(command);
-                } else {
-                    //TODO: resize transition
+                if (d.duration() != m_dragItem->duration() || d.cropStart() != clipInfo.cropStart) {
+                    ItemInfo startInfo = clipInfo;
+                    clipInfo.endPos = clipInfo.startPos + d.duration();
+                    clipInfo.cropStart = d.cropStart();
+                    new ResizeClipCommand(this, startInfo, clipInfo, true, moveCommand);
                 }
+                m_commandStack->push(moveCommand);
             }
         }
     } else {
@@ -863,7 +1033,8 @@ void CustomTrackView::mouseDoubleClickEvent(QMouseEvent *event) {
 }
 
 
-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);
     if (clip) {
         clip->setKeyframes(index, keyframes);
@@ -872,63 +1043,95 @@ void CustomTrackView::editKeyFrame(const GenTime pos, const int track, const int
 }
 
 
-void CustomTrackView::displayContextMenu(QPoint pos, AbstractClipItem *clip) {
+void CustomTrackView::displayContextMenu(QPoint pos, AbstractClipItem *clip, AbstractGroupItem *group)
+{
     if (clip == NULL) m_timelineContextMenu->popup(pos);
-    else if (clip->type() == AVWIDGET) m_timelineContextClipMenu->popup(pos);
-    else if (clip->type() == TRANSITIONWIDGET) m_timelineContextTransitionMenu->popup(pos);
+    else if (group != NULL) {
+        m_changeSpeedAction->setEnabled(false);
+        m_pasteEffectsAction->setEnabled(m_copiedItems.count() == 1);
+        m_ungroupAction->setEnabled(true);
+        updateClipTypeActions(NULL);
+        m_timelineContextClipMenu->popup(pos);
+    } else {
+        m_ungroupAction->setEnabled(false);
+        if (clip->type() == AVWIDGET) {
+            ClipItem *item = static_cast <ClipItem*>(clip);
+            updateClipTypeActions(item);
+            m_changeSpeedAction->setEnabled(item->clipType() == AV || item->clipType() == VIDEO);
+            m_pasteEffectsAction->setEnabled(m_copiedItems.count() == 1);
+            m_timelineContextClipMenu->popup(pos);
+        } else if (clip->type() == TRANSITIONWIDGET) m_timelineContextTransitionMenu->popup(pos);
+    }
 }
 
-void CustomTrackView::activateMonitor() {
+void CustomTrackView::activateMonitor()
+{
     emit activateDocumentMonitor();
 }
 
-void CustomTrackView::dragEnterEvent(QDragEnterEvent * event) {
+void CustomTrackView::dragEnterEvent(QDragEnterEvent * event)
+{
     if (event->mimeData()->hasFormat("kdenlive/clip")) {
+        m_clipDrag = true;
         resetSelectionGroup();
-
-        QStringList list = QString(event->mimeData()->data("kdenlive/clip")).split(";");
+        QStringList list = QString(event->mimeData()->data("kdenlive/clip")).split(';');
         m_selectionGroup = new AbstractGroupItem(m_document->fps());
-        QPoint pos = QPoint();
+        QPoint pos;
         DocClipBase *clip = m_document->getBaseClip(list.at(0));
         if (clip == NULL) kDebug() << " WARNING))))))))) CLIP NOT FOUND : " << list.at(0);
         ItemInfo info;
-        info.startPos = GenTime(pos.x(), m_document->fps());
+        info.startPos = GenTime();
         info.cropStart = GenTime(list.at(1).toInt(), m_document->fps());
-        info.endPos = info.startPos + GenTime(list.at(2).toInt() - list.at(1).toInt(), m_document->fps());
-        info.track = (int)(pos.y() / m_tracksHeight);
-        ClipItem *item = new ClipItem(clip, info, m_document->fps());
+        info.endPos = GenTime(list.at(2).toInt() - list.at(1).toInt(), m_document->fps());
+        info.track = (int)(1 / m_tracksHeight);
+        ClipItem *item = new ClipItem(clip, info, m_document->fps(), 1.0);
         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()))
+        QList <GenTime> offsetList;
+        offsetList.append(info.endPos);
+        updateSnapPoints(NULL, offsetList);
         scene()->addItem(m_selectionGroup);
         event->acceptProposedAction();
     } else if (event->mimeData()->hasFormat("kdenlive/producerslist")) {
-        QStringList ids = QString(event->mimeData()->data("kdenlive/producerslist")).split(";");
+        m_clipDrag = true;
+        QStringList ids = QString(event->mimeData()->data("kdenlive/producerslist")).split(';');
         m_scene->clearSelection();
         resetSelectionGroup(false);
 
         m_selectionGroup = new AbstractGroupItem(m_document->fps());
-        QPoint pos = QPoint();
+        QPoint pos;
+        GenTime start;
+        QList <GenTime> offsetList;
         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);
             ItemInfo info;
-            info.startPos = GenTime(pos.x(), m_document->fps());
+            info.startPos = start;
             info.endPos = info.startPos + clip->duration();
-            info.track = (int)(pos.y() / m_tracksHeight);
-            ClipItem *item = new ClipItem(clip, info, m_document->fps());
-            pos.setX(pos.x() + clip->duration().frames(m_document->fps()));
+            info.track = (int)(1 / m_tracksHeight);
+            ClipItem *item = new ClipItem(clip, info, m_document->fps(), 1.0);
+            start += clip->duration();
+            offsetList.append(start);
             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()))
+        updateSnapPoints(NULL, offsetList);
         scene()->addItem(m_selectionGroup);
         event->acceptProposedAction();
-    } else QGraphicsView::dragEnterEvent(event);
+    } else {
+        // the drag is not a clip (may be effect, ...)
+        m_clipDrag = false;
+        QGraphicsView::dragEnterEvent(event);
+    }
 }
 
 
-bool CustomTrackView::insertPossible(AbstractGroupItem *group, const QPoint &pos) const {
+bool CustomTrackView::insertPossible(AbstractGroupItem *group, const QPoint &pos) const
+{
     QPolygonF path;
     QList<QGraphicsItem *> children = group->childItems();
     for (int i = 0; i < children.count(); i++) {
@@ -958,10 +1161,11 @@ bool CustomTrackView::insertPossible(AbstractGroupItem *group, const QPoint &pos
 
 }
 
-void CustomTrackView::slotRefreshEffects(ClipItem *clip) {
+void CustomTrackView::slotRefreshEffects(ClipItem *clip)
+{
     int track = m_document->tracksCount() - clip->track();
     GenTime pos = clip->startPos();
-    if (!m_document->renderer()->mltRemoveEffect(track, pos, "-1", false)) {
+    if (!m_document->renderer()->mltRemoveEffect(track, pos, "-1", false, false)) {
         emit displayMessage(i18n("Problem deleting effect"), ErrorMessage);
         return;
     }
@@ -973,7 +1177,8 @@ void CustomTrackView::slotRefreshEffects(ClipItem *clip) {
     m_document->renderer()->doRefresh();
 }
 
-void CustomTrackView::addEffect(int track, GenTime pos, QDomElement effect) {
+void CustomTrackView::addEffect(int track, GenTime pos, QDomElement effect)
+{
     ClipItem *clip = getClipItemAt((int)pos.frames(m_document->fps()) + 1, m_document->tracksCount() - track);
     if (clip) {
         if (!m_document->renderer()->mltAddEffect(track, pos, clip->addEffect(effect)))
@@ -982,9 +1187,11 @@ void CustomTrackView::addEffect(int track, GenTime pos, QDomElement effect) {
     } else emit displayMessage(i18n("Cannot find clip to add effect"), ErrorMessage);
 }
 
-void CustomTrackView::deleteEffect(int track, GenTime pos, QDomElement effect) {
+void CustomTrackView::deleteEffect(int track, GenTime pos, QDomElement effect)
+{
     QString index = effect.attribute("kdenlive_ix");
-    if (effect.attribute("disabled") != "1" && !m_document->renderer()->mltRemoveEffect(track, pos, index)) {
+    if (!m_document->renderer()->mltRemoveEffect(track, pos, index, true) && effect.attribute("disabled") != "1") {
+        kDebug() << "// ERROR REMOV EFFECT: " << index << ", DISABLE: " << effect.attribute("disabled");
         emit displayMessage(i18n("Problem deleting effect"), ErrorMessage);
         return;
     }
@@ -995,8 +1202,52 @@ void CustomTrackView::deleteEffect(int track, GenTime pos, QDomElement effect) {
     }
 }
 
-void CustomTrackView::slotAddEffect(QDomElement effect, GenTime pos, int track) {
+void CustomTrackView::slotAddGroupEffect(QDomElement effect, AbstractGroupItem *group)
+{
+    QList<QGraphicsItem *> itemList = group->childItems();
+    QUndoCommand *effectCommand = 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");
+    effectCommand->setText(i18n("Add %1", effectName));
+    int count = 0;
+    for (int i = 0; i < itemList.count(); i++) {
+        if (itemList.at(i)->type() == AVWIDGET) {
+            ClipItem *item = (ClipItem *)itemList.at(i);
+            if (item->hasEffect(effect.attribute("tag"), effect.attribute("id")) != -1 && effect.attribute("unique", "0") != "0") {
+                emit displayMessage(i18n("Effect already present in clip"), ErrorMessage);
+                continue;
+            }
+            if (item->isItemLocked()) {
+                continue;
+            }
+            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) {
+        m_commandStack->push(effectCommand);
+        m_document->setModified(true);
+    } else delete effectCommand;
+}
+
+void CustomTrackView::slotAddEffect(QDomElement effect, GenTime pos, int track)
+{
     QList<QGraphicsItem *> itemList;
+    QUndoCommand *effectCommand = 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");
+    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()) + 1, track);
@@ -1007,26 +1258,38 @@ void CustomTrackView::slotAddEffect(QDomElement effect, GenTime pos, int track)
     for (int i = 0; i < itemList.count(); i++) {
         if (itemList.at(i)->type() == AVWIDGET) {
             ClipItem *item = (ClipItem *)itemList.at(i);
+            if (item->hasEffect(effect.attribute("tag"), effect.attribute("id")) != -1 && effect.attribute("unique", "0") != "0") {
+                emit displayMessage(i18n("Effect already present in clip"), ErrorMessage);
+                continue;
+            }
+            if (item->isItemLocked()) {
+                continue;
+            }
             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);
             }
-            AddEffectCommand *command = new AddEffectCommand(this, m_document->tracksCount() - item->track(), item->startPos(), effect, true);
-            m_commandStack->push(command);
+            new AddEffectCommand(this, m_document->tracksCount() - item->track(), item->startPos(), effect, true, effectCommand);
+            count++;
         }
     }
-    m_document->setModified(true);
+    if (count > 0) {
+        m_commandStack->push(effectCommand);
+        m_document->setModified(true);
+    } else delete effectCommand;
 }
 
-void CustomTrackView::slotDeleteEffect(ClipItem *clip, QDomElement effect) {
+void CustomTrackView::slotDeleteEffect(ClipItem *clip, QDomElement effect)
+{
     AddEffectCommand *command = new AddEffectCommand(this, m_document->tracksCount() - clip->track(), clip->startPos(), effect, false);
     m_commandStack->push(command);
     m_document->setModified(true);
 }
 
-void CustomTrackView::updateEffect(int track, GenTime pos, QDomElement effect, int ix, bool triggeredByUser) {
+void CustomTrackView::updateEffect(int track, GenTime pos, QDomElement effect, int ix, bool triggeredByUser)
+{
     ClipItem *clip = getClipItemAt((int)pos.frames(m_document->fps()) + 1, m_document->tracksCount() - track);
     if (clip) {
         EffectsParameterList effectParams = clip->getEffectArgs(effect);
@@ -1041,8 +1304,8 @@ void CustomTrackView::updateEffect(int track, GenTime pos, QDomElement effect, i
             effectParams = clip->getEffectArgs(effect);
         }
         if (effectParams.paramValue("disabled") == "1") {
-            if (m_document->renderer()->mltRemoveEffect(track, pos, effectParams.paramValue("kdenlive_ix"))) {
-                kDebug() << "//////  DISABLING EFFECT: " << index << ", CURRENTLA: " << clip->selectedEffectIndex();
+            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))
             emit displayMessage(i18n("Problem editing effect"), ErrorMessage);
@@ -1052,13 +1315,13 @@ void CustomTrackView::updateEffect(int track, GenTime pos, QDomElement effect, i
             clip->setSelectedEffect(ix);
             if (!triggeredByUser) emit clipItemSelected(clip, ix);
         }
-        if (effect.attribute("tag") == "volume") {
+        if (effect.attribute("tag") == "volume" || effect.attribute("tag") == "brightness") {
             // A fade effect was modified, update the clip
-            if (effect.attribute("id") == "fadein") {
+            if (effect.attribute("id") == "fadein" || effect.attribute("id") == "fade_from_black") {
                 int pos = effectParams.paramValue("out").toInt() - effectParams.paramValue("in").toInt();
                 clip->setFadeIn(pos);
             }
-            if (effect.attribute("id") == "fadeout") {
+            if (effect.attribute("id") == "fadeout" || effect.attribute("id") == "fade_to_black") {
                 int pos = effectParams.paramValue("out").toInt() - effectParams.paramValue("in").toInt();
                 clip->setFadeOut(pos);
             }
@@ -1068,7 +1331,8 @@ void CustomTrackView::updateEffect(int track, GenTime pos, QDomElement effect, i
     m_document->setModified(true);
 }
 
-void CustomTrackView::moveEffect(int track, GenTime pos, int oldPos, int newPos) {
+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);
     if (clip) {
         m_document->renderer()->mltMoveEffect(track, pos, oldPos, newPos);
@@ -1081,7 +1345,8 @@ void CustomTrackView::moveEffect(int track, GenTime pos, int oldPos, int newPos)
     m_document->setModified(true);
 }
 
-void CustomTrackView::slotChangeEffectState(ClipItem *clip, int effectPos, bool disable) {
+void CustomTrackView::slotChangeEffectState(ClipItem *clip, int effectPos, bool disable)
+{
     QDomElement effect = clip->effectAt(effectPos);
     QDomElement oldEffect = effect.cloneNode().toElement();
     effect.setAttribute("disabled", disable);
@@ -1090,18 +1355,21 @@ void CustomTrackView::slotChangeEffectState(ClipItem *clip, int effectPos, bool
     m_document->setModified(true);
 }
 
-void CustomTrackView::slotChangeEffectPosition(ClipItem *clip, int currentPos, int newPos) {
-    MoveEffectCommand *command = new MoveEffectCommand(this, m_document->tracksCount() - clip->track(), clip->startPos(), currentPos, newPos, true);
+void CustomTrackView::slotChangeEffectPosition(ClipItem *clip, int currentPos, int newPos)
+{
+    MoveEffectCommand *command = new MoveEffectCommand(this, m_document->tracksCount() - clip->track(), clip->startPos(), currentPos, newPos);
     m_commandStack->push(command);
     m_document->setModified(true);
 }
 
-void CustomTrackView::slotUpdateClipEffect(ClipItem *clip, QDomElement oldeffect, QDomElement effect, int ix) {
+void CustomTrackView::slotUpdateClipEffect(ClipItem *clip, QDomElement oldeffect, QDomElement effect, int ix)
+{
     EditEffectCommand *command = new EditEffectCommand(this, m_document->tracksCount() - clip->track(), clip->startPos(), oldeffect, effect, ix, true);
     m_commandStack->push(command);
 }
 
-void CustomTrackView::cutClip(ItemInfo info, GenTime cutTime, bool cut) {
+void CustomTrackView::cutClip(ItemInfo info, GenTime cutTime, bool cut)
+{
     if (cut) {
         // cut clip
         ClipItem *item = getClipItemAt((int) info.startPos.frames(m_document->fps()) + 1, info.track);
@@ -1111,23 +1379,29 @@ void CustomTrackView::cutClip(ItemInfo info, GenTime cutTime, bool cut) {
             m_blockRefresh = false;
             return;
         }
+        if (item->parentItem()) {
+            // Item is part of a group, reset group
+            resetSelectionGroup();
+        }
         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);
         int cutPos = (int) cutTime.frames(m_document->fps());
         ItemInfo newPos;
+        double speed = item->speed();
         newPos.startPos = cutTime;
         newPos.endPos = info.endPos;
-        newPos.cropStart = item->cropStart() + (cutTime - info.startPos);
+        if (speed == 1) newPos.cropStart = item->info().cropStart + (cutTime - info.startPos);
+        else newPos.cropStart = item->info().cropStart + (cutTime - info.startPos) * speed;
         newPos.track = info.track;
         ClipItem *dup = item->clone(newPos);
-        kDebug() << "// REsizing item to: " << cutPos;
         item->resizeEnd(cutPos, false);
         scene()->addItem(dup);
         if (item->checkKeyFrames()) slotRefreshEffects(item);
         if (dup->checkKeyFrames()) slotRefreshEffects(dup);
         item->baseClip()->addReference();
         m_document->updateClip(item->baseClip()->getId());
+        m_document->setModified(true);
         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);
         kDebug() << "//  CUTTING CLIP dONE";
     } else {
@@ -1162,6 +1436,7 @@ void CustomTrackView::cutClip(ItemInfo info, GenTime cutTime, bool cut) {
         bool success = m_document->renderer()->mltResizeClipEnd(clipinfo, info.endPos - info.startPos);
         if (success) {
             item->resizeEnd((int) info.endPos.frames(m_document->fps()));
+            m_document->setModified(true);
         } else
             emit displayMessage(i18n("Error when resizing clip"), ErrorMessage);
 
@@ -1169,11 +1444,13 @@ void CustomTrackView::cutClip(ItemInfo info, GenTime cutTime, bool cut) {
     QTimer::singleShot(3000, this, SLOT(slotEnableRefresh()));
 }
 
-void CustomTrackView::slotEnableRefresh() {
+void CustomTrackView::slotEnableRefresh()
+{
     m_blockRefresh = false;
 }
 
-void CustomTrackView::slotAddTransitionToSelectedClips(QDomElement transition) {
+void CustomTrackView::slotAddTransitionToSelectedClips(QDomElement transition)
+{
     QList<QGraphicsItem *> itemList = scene()->selectedItems();
     if (itemList.count() == 1) {
         if (itemList.at(0)->type() == AVWIDGET) {
@@ -1190,6 +1467,22 @@ void CustomTrackView::slotAddTransitionToSelectedClips(QDomElement transition) {
                 if (transitionClip && transitionClip->endPos() < item->endPos()) {
                     info.endPos = transitionClip->endPos();
                 } else 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;
+                QRectF r(info.startPos.frames(m_document->fps()), startY, (info.endPos - info.startPos).frames(m_document->fps()), m_tracksHeight / 2);
+                QList<QGraphicsItem *> selection = m_scene->items(r);
+                bool transitionAccepted = true;
+                for (int i = 0; i < selection.count(); i++) {
+                    if (selection.at(i)->type() == TRANSITIONWIDGET) {
+                        Transition *tr = static_cast <Transition *>(selection.at(i));
+                        if (tr->startPos() - info.startPos > GenTime(5, m_document->fps())) {
+                            if (tr->startPos() < info.endPos) info.endPos = tr->startPos();
+                        } else transitionAccepted = false;
+                    }
+                }
+                if (transitionAccepted) slotAddTransition(item, info, transitiontrack, transition);
+                else emit displayMessage(i18n("Cannot add transition"), ErrorMessage);
+
             } else {
                 // add transition to clip  end
                 info.endPos = item->endPos();
@@ -1198,8 +1491,23 @@ void CustomTrackView::slotAddTransitionToSelectedClips(QDomElement transition) {
                     info.startPos = transitionClip->startPos();
                 } else info.startPos = info.endPos - GenTime(65, m_document->fps());
                 if (transition.attribute("tag") == "luma") EffectsList::setParameter(transition, "reverse", "1");
+
+                // Check there is no other transition at that place
+                double startY = info.track * m_tracksHeight + 1 + m_tracksHeight / 2;
+                QRectF r(info.startPos.frames(m_document->fps()), startY, (info.endPos - info.startPos).frames(m_document->fps()), m_tracksHeight / 2);
+                QList<QGraphicsItem *> selection = m_scene->items(r);
+                bool transitionAccepted = true;
+                for (int i = 0; i < selection.count(); i++) {
+                    if (selection.at(i)->type() == TRANSITIONWIDGET) {
+                        Transition *tr = static_cast <Transition *>(selection.at(i));
+                        if (info.endPos - tr->endPos() > GenTime(5, m_document->fps())) {
+                            if (tr->endPos() > info.startPos) info.startPos = tr->endPos();
+                        } else transitionAccepted = false;
+                    }
+                }
+                if (transitionAccepted) slotAddTransition(item, info, transitiontrack, transition);
+                else emit displayMessage(i18n("Cannot add transition"), ErrorMessage);
             }
-            slotAddTransition(item, info, transitiontrack, transition);
         }
     } else for (int i = 0; i < itemList.count(); i++) {
             if (itemList.at(i)->type() == AVWIDGET) {
@@ -1208,29 +1516,54 @@ void CustomTrackView::slotAddTransitionToSelectedClips(QDomElement transition) {
                 info.startPos = item->startPos();
                 info.endPos = info.startPos + GenTime(65, m_document->fps());
                 info.track = item->track();
+
+                // Check there is no other transition at that place
+                double startY = info.track * m_tracksHeight + 1 + m_tracksHeight / 2;
+                QRectF r(info.startPos.frames(m_document->fps()), startY, (info.endPos - info.startPos).frames(m_document->fps()), m_tracksHeight / 2);
+                QList<QGraphicsItem *> selection = m_scene->items(r);
+                bool transitionAccepted = true;
+                for (int i = 0; i < selection.count(); i++) {
+                    if (selection.at(i)->type() == TRANSITIONWIDGET) {
+                        Transition *tr = static_cast <Transition *>(selection.at(i));
+                        if (tr->startPos() - info.startPos > GenTime(5, m_document->fps())) {
+                            if (tr->startPos() < info.endPos) info.endPos = tr->startPos();
+                        } else transitionAccepted = false;
+                    }
+                }
                 int transitiontrack = getPreviousVideoTrack(info.track);
-                slotAddTransition(item, info, transitiontrack, transition);
+                if (transitionAccepted) slotAddTransition(item, info, transitiontrack, transition);
+                else emit displayMessage(i18n("Cannot add transition"), ErrorMessage);
             }
         }
 }
 
-void CustomTrackView::slotAddTransition(ClipItem* clip, ItemInfo transitionInfo, int endTrack, QDomElement transition) {
+void CustomTrackView::slotAddTransition(ClipItem* /*clip*/, ItemInfo transitionInfo, int endTrack, QDomElement transition)
+{
+    if (transitionInfo.startPos >= transitionInfo.endPos) {
+        emit displayMessage(i18n("Invalid transition"), ErrorMessage);
+        return;
+    }
     AddTransitionCommand* command = new AddTransitionCommand(this, transitionInfo, endTrack, transition, false, true);
     m_commandStack->push(command);
     m_document->setModified(true);
 }
 
-void CustomTrackView::addTransition(ItemInfo transitionInfo, int endTrack, QDomElement params) {
+void CustomTrackView::addTransition(ItemInfo transitionInfo, int endTrack, QDomElement params)
+{
     Transition *tr = new Transition(transitionInfo, endTrack, m_document->fps(), params, true);
-    scene()->addItem(tr);
-
     //kDebug() << "---- ADDING transition " << params.attribute("value");
-    m_document->renderer()->mltAddTransition(tr->transitionTag(), endTrack, m_document->tracksCount() - transitionInfo.track, transitionInfo.startPos, transitionInfo.endPos, tr->toXML());
-    m_document->setModified(true);
+    if (m_document->renderer()->mltAddTransition(tr->transitionTag(), endTrack, m_document->tracksCount() - transitionInfo.track, transitionInfo.startPos, transitionInfo.endPos, tr->toXML())) {
+        scene()->addItem(tr);
+        m_document->setModified(true);
+    } else {
+        emit displayMessage(i18n("Cannot add transition"), ErrorMessage);
+        delete tr;
+    }
 }
 
-void CustomTrackView::deleteTransition(ItemInfo transitionInfo, int endTrack, QDomElement params) {
-    Transition *item = getTransitionItemAt((int)transitionInfo.startPos.frames(m_document->fps()), transitionInfo.track);
+void CustomTrackView::deleteTransition(ItemInfo transitionInfo, int endTrack, QDomElement /*params*/)
+{
+    Transition *item = getTransitionItemAt(transitionInfo.startPos, transitionInfo.track);
     if (!item) {
         emit displayMessage(i18n("Select clip to delete"), ErrorMessage);
         return;
@@ -1242,55 +1575,44 @@ void CustomTrackView::deleteTransition(ItemInfo transitionInfo, int endTrack, QD
     m_document->setModified(true);
 }
 
-void CustomTrackView::slotTransitionUpdated(Transition *tr, QDomElement old) {
-    EditTransitionCommand *command = new EditTransitionCommand(this, tr->track(), tr->startPos(), old, tr->toXML(), true);
-    m_commandStack->push(command);
-    m_document->setModified(true);
-}
-
-void CustomTrackView::slotTransitionTrackUpdated(Transition *tr, int track) {
-    QDomElement old = tr->toXML().cloneNode().toElement();
-    if (track == 0) {
-        track = getPreviousVideoTrack(tr->track());
-        tr->setForcedTrack(false, track);
-    } else {
-        tr->setForcedTrack(true, m_document->tracksCount() + 1 - track);
-    }
-    EditTransitionCommand *command = new EditTransitionCommand(this, tr->track(), tr->startPos(), old, tr->toXML(), true);
+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);
     m_commandStack->push(command);
     m_document->setModified(true);
 }
 
-void CustomTrackView::updateTransition(int track, GenTime pos, QDomElement oldTransition, QDomElement transition, bool updateTransitionWidget) {
-    Transition *item = getTransitionItemAt((int)pos.frames(m_document->fps()), track);
+void CustomTrackView::updateTransition(int track, GenTime pos, QDomElement oldTransition, QDomElement transition, bool updateTransitionWidget)
+{
+    Transition *item = getTransitionItemAt(pos, track);
     if (!item) {
         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);
+    //kDebug() << "ORIGINAL TRACK: "<< oldTransition.attribute("transition_btrack") << ", NEW TRACK: "<<transition.attribute("transition_btrack");
     item->setTransitionParameters(transition);
     if (updateTransitionWidget) emit transitionItemSelected(item, true);
     m_document->setModified(true);
 }
 
-void CustomTrackView::dragMoveEvent(QDragMoveEvent * event) {
+void CustomTrackView::dragMoveEvent(QDragMoveEvent * event)
+{
     event->setDropAction(Qt::IgnoreAction);
-    const int track = (int)(mapToScene(event->pos()).y() / m_tracksHeight);
-    const int pos = mapToScene(event->pos()).x();
-    //kDebug() << "// DRAG MOVE TO TRACK: " << track;
-    if (m_selectionGroup) {
-        m_selectionGroup->setPos(pos, event->pos().y());
+    const QPointF pos = mapToScene(event->pos());
+    if (m_selectionGroup && m_clipDrag) {
+        m_selectionGroup->setPos(pos.x(), pos.y());
         event->setDropAction(Qt::MoveAction);
-        if (event->mimeData()->hasFormat("kdenlive/producerslist") || event->mimeData()->hasFormat("kdenlive/clip")) {
-            event->acceptProposedAction();
-        }
+        event->acceptProposedAction();
     } else {
         QGraphicsView::dragMoveEvent(event);
     }
 }
 
-void CustomTrackView::dragLeaveEvent(QDragLeaveEvent * event) {
-    if (m_selectionGroup) {
+void CustomTrackView::dragLeaveEvent(QDragLeaveEvent * event)
+{
+    if (m_selectionGroup && m_clipDrag) {
         QList<QGraphicsItem *> items = m_selectionGroup->childItems();
         qDeleteAll(items);
         scene()->destroyItemGroup(m_selectionGroup);
@@ -1298,37 +1620,57 @@ void CustomTrackView::dragLeaveEvent(QDragLeaveEvent * event) {
     } else QGraphicsView::dragLeaveEvent(event);
 }
 
-void CustomTrackView::dropEvent(QDropEvent * event) {
-    if (m_selectionGroup) {
+void CustomTrackView::dropEvent(QDropEvent * event)
+{
+    if (m_selectionGroup && m_clipDrag) {
         QList<QGraphicsItem *> items = m_selectionGroup->childItems();
         resetSelectionGroup();
         m_scene->clearSelection();
+        bool hasVideoClip = false;
         for (int i = 0; i < items.count(); i++) {
             ClipItem *item = static_cast <ClipItem *>(items.at(i));
+            if (!hasVideoClip && (item->clipType() == AV || item->clipType() == VIDEO)) hasVideoClip = true;
+            if (items.count() == 1) {
+                updateClipTypeActions(item);
+            } else {
+                updateClipTypeActions(NULL);
+            }
             AddTimelineClipCommand *command = new AddTimelineClipCommand(this, item->xml(), item->clipProducer(), item->info(), item->effectList(), false, false);
             m_commandStack->push(command);
             item->baseClip()->addReference();
             m_document->updateClip(item->baseClip()->getId());
-            ItemInfo info;
-            info = item->info();
+            ItemInfo info = item->info();
+
+            int tracknumber = m_document->tracksCount() - info.track - 1;
+            bool isLocked = m_document->trackInfoAt(tracknumber).isLocked;
+            if (isLocked) item->setItemLocked(true);
+
             if (item->baseClip()->isTransparent()) {
                 // add transparency transition
                 int endTrack = getPreviousVideoTrack(info.track);
-                Transition *tr = new Transition(info, endTrack, m_document->fps(), MainWindow::transitions.getEffectByTag("composite", "alphatransparency"), true);
-                scene()->addItem(tr);
-                m_document->renderer()->mltAddTransition(tr->transitionTag(), endTrack, m_document->tracksCount() - info.track, info.startPos, info.endPos, tr->toXML());
+                Transition *tr = new Transition(info, endTrack, m_document->fps(), MainWindow::transitions.getEffectByTag("composite", "composite"), true);
+                if (m_document->renderer()->mltAddTransition(tr->transitionTag(), endTrack, m_document->tracksCount() - info.track, info.startPos, info.endPos, tr->toXML())) {
+                    scene()->addItem(tr);
+                } else {
+                    emit displayMessage(i18n("Cannot add transition"), ErrorMessage);
+                    delete tr;
+                }
             }
             info.track = m_document->tracksCount() - item->track();
             m_document->renderer()->mltInsertClip(info, item->xml(), item->baseClip()->producer(item->track()));
             item->setSelected(true);
         }
         m_document->setModified(true);
+        m_changeSpeedAction->setEnabled(hasVideoClip);
+        m_pasteEffectsAction->setEnabled(m_copiedItems.count() == 1);
+        groupSelectedItems(true);
     } else QGraphicsView::dropEvent(event);
     setFocus();
 }
 
 
-QStringList CustomTrackView::mimeTypes() const {
+QStringList CustomTrackView::mimeTypes() const
+{
     QStringList qstrList;
     // list of accepted mime types for drop
     qstrList.append("text/plain");
@@ -1337,22 +1679,29 @@ QStringList CustomTrackView::mimeTypes() const {
     return qstrList;
 }
 
-Qt::DropActions CustomTrackView::supportedDropActions() const {
+Qt::DropActions CustomTrackView::supportedDropActions() const
+{
     // returns what actions are supported when dropping
     return Qt::MoveAction;
 }
 
-void CustomTrackView::setDuration(int duration) {
-    if (duration > sceneRect().width())
-        setSceneRect(0, 0, (duration + 100), sceneRect().height());
+void CustomTrackView::setDuration(int duration)
+{
+    int diff = qAbs(duration - sceneRect().width());
+    if (diff * matrix().m11() > -50) {
+        if (matrix().m11() < 0.4) setSceneRect(0, 0, (duration + 100 / matrix().m11()), sceneRect().height());
+        else setSceneRect(0, 0, (duration + 300), sceneRect().height());
+    }
     m_projectDuration = duration;
 }
 
-int CustomTrackView::duration() const {
+int CustomTrackView::duration() const
+{
     return m_projectDuration;
 }
 
-void CustomTrackView::addTrack(TrackInfo type, int ix) {
+void CustomTrackView::addTrack(TrackInfo type, int ix)
+{
     if (ix == -1) m_document->insertTrack(ix, type);
     else {
         m_document->insertTrack(m_document->tracksCount() - ix, type);
@@ -1384,7 +1733,11 @@ void CustomTrackView::addTrack(TrackInfo type, int ix) {
                 ClipItem *clip = static_cast <ClipItem *>(item);
                 // We add a move clip command so that we get the correct producer for new track number
                 if (clip->clipType() == AV || clip->clipType() == AUDIO) {
-                    m_document->renderer()->mltUpdateClipProducer((int)(m_document->tracksCount() - clipinfo.track), clipinfo.startPos.frames(m_document->fps()), clip->baseClip()->producer(clipinfo.track));
+                    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);
                     kDebug() << "// UPDATING CLIP TO TRACK PROD: " << clipinfo.track;
                 }
             } else if (item->type() == TRANSITIONWIDGET) {
@@ -1411,7 +1764,8 @@ void CustomTrackView::addTrack(TrackInfo type, int ix) {
     //setFixedHeight(50 * m_tracksCount);
 }
 
-void CustomTrackView::removeTrack(int ix) {
+void CustomTrackView::removeTrack(int ix)
+{
     // Delete track in MLT playlist
     m_document->renderer()->mltDeleteTrack(m_document->tracksCount() - ix);
     m_document->deleteTrack(m_document->tracksCount() - ix - 1);
@@ -1444,8 +1798,13 @@ void CustomTrackView::removeTrack(int ix) {
             ItemInfo clipinfo = clip->info();
             kDebug() << "// CLIP TRK IS: " << clipinfo.track;
             // We add a move clip command so that we get the correct producer for new track number
-            if (clip->clipType() == AV || clip->clipType() == AUDIO)
-                m_document->renderer()->mltUpdateClipProducer((int)(m_document->tracksCount() - clipinfo.track), clipinfo.startPos.frames(m_document->fps()), clip->baseClip()->producer(clipinfo.track));
+            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);
+            }
         } else if (children.at(i)->type() == TRANSITIONWIDGET) {
             Transition *tr = static_cast <Transition *>(children.at(i));
             tr->updateItem();
@@ -1470,7 +1829,8 @@ void CustomTrackView::removeTrack(int ix) {
     viewport()->update();
 }
 
-void CustomTrackView::changeTrack(int ix, TrackInfo type) {
+void CustomTrackView::changeTrack(int ix, TrackInfo type)
+{
     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);
@@ -1479,26 +1839,55 @@ void CustomTrackView::changeTrack(int ix, TrackInfo type) {
 }
 
 
-void CustomTrackView::slotSwitchTrackAudio(int ix) {
+void CustomTrackView::slotSwitchTrackAudio(int ix)
+{
     /*for (int i = 0; i < m_document->tracksCount(); i++)
         kDebug() << "TRK " << i << " STATE: " << m_document->trackInfoAt(i).isMute << m_document->trackInfoAt(i).isBlind;*/
-
     int tracknumber = m_document->tracksCount() - ix;
-
     m_document->switchTrackAudio(tracknumber - 1, !m_document->trackInfoAt(tracknumber - 1).isMute);
     kDebug() << "NEXT TRK STATE: " << m_document->trackInfoAt(tracknumber - 1).isMute << m_document->trackInfoAt(tracknumber - 1).isBlind;
     m_document->renderer()->mltChangeTrackState(tracknumber, m_document->trackInfoAt(tracknumber - 1).isMute, m_document->trackInfoAt(tracknumber - 1).isBlind);
     m_document->setModified(true);
 }
 
-void CustomTrackView::slotSwitchTrackVideo(int ix) {
+void CustomTrackView::slotSwitchTrackLock(int ix)
+{
+    int tracknumber = m_document->tracksCount() - ix - 1;
+    LockTrackCommand *command = new LockTrackCommand(this, ix, !m_document->trackInfoAt(tracknumber).isLocked);
+    m_commandStack->push(command);
+}
+
+
+void CustomTrackView::lockTrack(int ix, bool lock)
+{
+    int tracknumber = m_document->tracksCount() - ix - 1;
+    m_document->switchTrackLock(tracknumber, lock);
+    emit doTrackLock(ix, lock);
+    QList<QGraphicsItem *> selection = items(0, ix * m_tracksHeight + m_tracksHeight / 2, mapFromScene(sceneRect().width(), 0).x(), m_tracksHeight / 2 - 2);
+
+    for (int i = 0; i < selection.count(); i++) {
+        if (selection.at(i)->type() != AVWIDGET && selection.at(i)->type() != TRANSITIONWIDGET) continue;
+        if (selection.at(i)->isSelected()) {
+            if (selection.at(i)->type() == AVWIDGET) emit clipItemSelected(NULL);
+            else emit transitionItemSelected(NULL);
+        }
+        static_cast <AbstractClipItem *>(selection.at(i))->setItemLocked(lock);
+    }
+    kDebug() << "NEXT TRK STATE: " << m_document->trackInfoAt(tracknumber).isLocked;
+    viewport()->update();
+    m_document->setModified(true);
+}
+
+void CustomTrackView::slotSwitchTrackVideo(int ix)
+{
     int tracknumber = m_document->tracksCount() - ix;
     m_document->switchTrackVideo(tracknumber - 1, !m_document->trackInfoAt(tracknumber - 1).isBlind);
     m_document->renderer()->mltChangeTrackState(tracknumber, m_document->trackInfoAt(tracknumber - 1).isMute, m_document->trackInfoAt(tracknumber - 1).isBlind);
     m_document->setModified(true);
 }
 
-void CustomTrackView::slotRemoveSpace() {
+void CustomTrackView::slotRemoveSpace()
+{
     GenTime pos;
     int track = 0;
     if (m_menuPosition.isNull()) {
@@ -1512,7 +1901,7 @@ void CustomTrackView::slotRemoveSpace() {
     }
     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);
+        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;
     }
     int length = m_document->renderer()->mltGetSpaceLength(pos, m_document->tracksCount() - track, true);
@@ -1525,8 +1914,8 @@ void CustomTrackView::slotRemoveSpace() {
     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);
 
-    QList<ItemInfo> clipsToMove = QList<ItemInfo> ();
-    QList<ItemInfo> transitionsToMove = QList<ItemInfo> ();
+    QList<ItemInfo> clipsToMove;
+    QList<ItemInfo> transitionsToMove;
 
     for (int i = 0; i < items.count(); i++) {
         if (items.at(i)->type() == AVWIDGET || items.at(i)->type() == TRANSITIONWIDGET) {
@@ -1544,7 +1933,8 @@ void CustomTrackView::slotRemoveSpace() {
     m_commandStack->push(command);
 }
 
-void CustomTrackView::slotInsertSpace() {
+void CustomTrackView::slotInsertSpace()
+{
     GenTime pos;
     int track = 0;
     if (m_menuPosition.isNull()) {
@@ -1570,8 +1960,8 @@ void CustomTrackView::slotInsertSpace() {
     QRectF r(pos.frames(m_document->fps()), minh, sceneRect().width() - pos.frames(m_document->fps()), maxh);
     QList<QGraphicsItem *> items = m_scene->items(r);
 
-    QList<ItemInfo> clipsToMove = QList<ItemInfo> ();
-    QList<ItemInfo> transitionsToMove = QList<ItemInfo> ();
+    QList<ItemInfo> clipsToMove;
+    QList<ItemInfo> transitionsToMove;
 
     for (int i = 0; i < items.count(); i++) {
         if (items.at(i)->type() == AVWIDGET || items.at(i)->type() == TRANSITIONWIDGET) {
@@ -1589,7 +1979,8 @@ void CustomTrackView::slotInsertSpace() {
     m_commandStack->push(command);
 }
 
-void CustomTrackView::insertSpace(QList<ItemInfo> clipsToMove, QList<ItemInfo> transToMove, int track, const GenTime duration, const GenTime offset) {
+void CustomTrackView::insertSpace(QList<ItemInfo> clipsToMove, QList<ItemInfo> transToMove, int track, const GenTime duration, const GenTime offset)
+{
     int diff = duration.frames(m_document->fps());
     resetSelectionGroup();
     m_selectionGroup = new AbstractGroupItem(m_document->fps());
@@ -1597,9 +1988,6 @@ void CustomTrackView::insertSpace(QList<ItemInfo> clipsToMove, QList<ItemInfo> t
     ClipItem *clip;
     Transition *transition;
 
-    kDebug() << "/// STARTING SPACE INSERT";
-
-
     // Create lists with start pos for each track
     QMap <int, int> trackClipStartList;
     QMap <int, int> trackTransitionStartList;
@@ -1610,48 +1998,74 @@ void CustomTrackView::insertSpace(QList<ItemInfo> clipsToMove, QList<ItemInfo> t
     }
 
     if (!clipsToMove.isEmpty()) for (int i = 0; i < clipsToMove.count(); i++) {
-            kDebug() << "/// FETCHING CLIP: " << i;
             clip = getClipItemAtStart(clipsToMove.at(i).startPos + offset, clipsToMove.at(i).track);
             if (clip) {
-                m_selectionGroup->addToGroup(clip);
+                if (clip->parentItem()) {
+                    m_selectionGroup->addToGroup(clip->parentItem());
+                    clip->parentItem()->setFlags(QGraphicsItem::ItemIsSelectable);
+                } else {
+                    m_selectionGroup->addToGroup(clip);
+                    clip->setFlags(QGraphicsItem::ItemIsSelectable);
+                }
                 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());
-                clip->setFlags(QGraphicsItem::ItemIsSelectable);
             } 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);
         }
     if (!transToMove.isEmpty()) for (int i = 0; i < transToMove.count(); i++) {
-            kDebug() << "/// FETCHING TRANS: " << 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 (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);
         }
-    kDebug() << "/// STARTING SPACE DONE";
     m_selectionGroup->translate(diff, 0);
+
+    // update items coordinates
+    QList<QGraphicsItem *> itemList = scene()->selectedItems();
+    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();
+            }
+        }
+    }
     resetSelectionGroup(false);
-    kDebug() << "/// STARTING SPACE DONE2";
     if (track != -1) track = m_document->tracksCount() - track;
     m_document->renderer()->mltInsertSpace(trackClipStartList, trackTransitionStartList, track, duration, offset);
 }
 
-void CustomTrackView::deleteClip(const QString &clipId) {
+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) {
             ClipItem *item = (ClipItem *)itemList.at(i);
             if (item->clipProducer() == clipId) {
-                AddTimelineClipCommand *command = new AddTimelineClipCommand(this, item->xml(), item->clipProducer(), item->info(), item->effectList(), true, true);
-                m_commandStack->push(command);
-                //delete item;
+                count++;
+                if (item->parentItem()) {
+                    // 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);
             }
         }
     }
+    if (count == 0) delete deleteCommand;
+    else m_commandStack->push(deleteCommand);
 }
 
-void CustomTrackView::setCursorPos(int pos, bool seek) {
+void CustomTrackView::setCursorPos(int pos, bool seek)
+{
     emit cursorMoved((int)(m_cursorPos), (int)(pos));
     m_cursorPos = pos;
     m_cursorLine->setPos(pos, 0);
@@ -1659,36 +2073,42 @@ void CustomTrackView::setCursorPos(int pos, bool seek) {
     else if (m_autoScroll) checkScrolling();
 }
 
-void CustomTrackView::updateCursorPos() {
+void CustomTrackView::updateCursorPos()
+{
     m_cursorLine->setPos(m_cursorPos, 0);
 }
 
-int CustomTrackView::cursorPos() {
+int CustomTrackView::cursorPos()
+{
     return (int)(m_cursorPos);
 }
 
-void CustomTrackView::moveCursorPos(int delta) {
+void CustomTrackView::moveCursorPos(int delta)
+{
     if (m_cursorPos + delta < 0) delta = 0 - m_cursorPos;
     emit cursorMoved((int)(m_cursorPos), (int)((m_cursorPos + delta)));
     m_cursorPos += delta;
     m_cursorLine->setPos(m_cursorPos, 0);
     m_document->renderer()->seek(GenTime(m_cursorPos, m_document->fps()));
-    //if (m_autoScroll && m_scale < 50) checkScrolling();
 }
 
-void CustomTrackView::checkScrolling() {
+void CustomTrackView::initCursorPos(int pos)
+{
+    emit cursorMoved((int)(m_cursorPos), (int)(pos));
+    m_cursorPos = pos;
+    m_cursorLine->setPos(pos, 0);
+    checkScrolling();
+}
+
+void CustomTrackView::checkScrolling()
+{
     int vert = verticalScrollBar()->value();
     int hor = cursorPos();
     ensureVisible(hor, vert + 10, 2, 2, 50, 0);
-    //centerOn(QPointF(cursorPos(), m_tracksHeight));
-    /*QRect rectInView = viewport()->rect();
-    int delta = rectInView.width() / 3;
-    int max = rectInView.right() + horizontalScrollBar()->value() - delta;
-    //kDebug() << "CURSOR POS: "<<m_cursorPos<< "Scale: "<<m_scale;
-    if (m_cursorPos * m_scale >= max) horizontalScrollBar()->setValue((int)(horizontalScrollBar()->value() + 1 + m_scale));*/
 }
 
-void CustomTrackView::mouseReleaseEvent(QMouseEvent * event) {
+void CustomTrackView::mouseReleaseEvent(QMouseEvent * event)
+{
     if (m_moveOpMode == SEEK) m_moveOpMode = NONE;
     QGraphicsView::mouseReleaseEvent(event);
     if (m_scrollTimer.isActive()) m_scrollTimer.stop();
@@ -1707,22 +2127,17 @@ void CustomTrackView::mouseReleaseEvent(QMouseEvent * event) {
         m_dragItem = NULL;
         return;
     } else if (m_operationMode == SPACER) {
-        int endClick = (int)(mapToScene(event->pos()).x() + 0.5);
-        int mappedClick = (int)(mapToScene(m_clickEvent).x() + 0.5);
-        int track = (int)(mapToScene(m_clickEvent).y() / m_tracksHeight);
-        if (m_selectionGroup->sceneBoundingRect().height() > m_tracksHeight) {
+        int track;
+        if (event->modifiers() != Qt::ControlModifier) {
             // We are moving all tracks
             track = -1;
-        }
-
-        int startPos = (int) m_selectionGroup->boundingRect().topLeft().x();
-        int diff = ((int) m_selectionGroup->pos().x()) - startPos;
-        //kDebug()<<"//////// SPACER DIFF: "<<diff<<<<m_selectionGroup->boundingRect().topLeft();
-        if (diff != 0) {
+        } else track = (int)(mapToScene(m_clickEvent).y() / m_tracksHeight);
+        GenTime timeOffset = GenTime(m_selectionGroup->scenePos().x(), m_document->fps()) - m_selectionGroupInfo.startPos;
+        if (timeOffset != GenTime()) {
             QList<QGraphicsItem *> items = m_selectionGroup->childItems();
 
-            QList<ItemInfo> clipsToMove = QList<ItemInfo> ();
-            QList<ItemInfo> transitionsToMove = QList<ItemInfo> ();
+            QList<ItemInfo> clipsToMove;
+            QList<ItemInfo> transitionsToMove;
 
             // Create lists with start pos for each track
             QMap <int, int> trackClipStartList;
@@ -1733,24 +2148,35 @@ void CustomTrackView::mouseReleaseEvent(QMouseEvent * event) {
                 trackTransitionStartList[i] = -1;
             }
 
+            int max = items.count();
+            for (int i = 0; i < max; i++) {
+                if (items.at(i)->type() == GROUPWIDGET)
+                    items += static_cast <QGraphicsItemGroup *>(items.at(i))->childItems();
+            }
+
             for (int i = 0; i < items.count(); i++) {
-                AbstractClipItem *item = static_cast <AbstractClipItem *>(items.at(i));
-                ItemInfo info = item->info();
-                if (item->type() == AVWIDGET) {
+                if (items.at(i)->type() == AVWIDGET) {
+                    AbstractClipItem *item = static_cast <AbstractClipItem *>(items.at(i));
+                    ItemInfo info = item->info();
                     clipsToMove.append(info);
+                    item->updateItem();
                     if (trackClipStartList.value(m_document->tracksCount() - info.track) == -1 || info.startPos.frames(m_document->fps()) < trackClipStartList.value(m_document->tracksCount() - info.track))
                         trackClipStartList[m_document->tracksCount() - info.track] = info.startPos.frames(m_document->fps());
-                } else if (item->type() == TRANSITIONWIDGET) {
+                } else if (items.at(i)->type() == TRANSITIONWIDGET) {
+                    AbstractClipItem *item = static_cast <AbstractClipItem *>(items.at(i));
+                    ItemInfo info = item->info();
                     transitionsToMove.append(info);
-                    if (trackClipStartList.value(m_document->tracksCount() - info.track) == -1 || info.startPos.frames(m_document->fps()) < trackTransitionStartList.value(m_document->tracksCount() - info.track))
+                    item->updateItem();
+                    if (trackTransitionStartList.value(m_document->tracksCount() - info.track) == -1 || info.startPos.frames(m_document->fps()) < trackTransitionStartList.value(m_document->tracksCount() - info.track))
                         trackTransitionStartList[m_document->tracksCount() - info.track] = info.startPos.frames(m_document->fps());
                 }
             }
 
-            InsertSpaceCommand *command = new InsertSpaceCommand(this, clipsToMove, transitionsToMove, track, GenTime(diff, m_document->fps()), false);
+            InsertSpaceCommand *command = new InsertSpaceCommand(this, clipsToMove, transitionsToMove, track, timeOffset, false);
             m_commandStack->push(command);
             if (track != -1) track = m_document->tracksCount() - track;
-            m_document->renderer()->mltInsertSpace(trackClipStartList, trackTransitionStartList, track, GenTime(diff, m_document->fps()), GenTime());
+            kDebug() << "SPACER TRACK:" << track;
+            m_document->renderer()->mltInsertSpace(trackClipStartList, trackTransitionStartList, track, timeOffset, GenTime());
         }
         resetSelectionGroup(false);
         m_operationMode = NONE;
@@ -1771,41 +2197,54 @@ void CustomTrackView::mouseReleaseEvent(QMouseEvent * event) {
     if (m_operationMode == MOVE) {
         setCursor(Qt::OpenHandCursor);
 
-        if (m_selectionGroup == NULL) {
+        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)) {
                 ClipItem *item = static_cast <ClipItem *>(m_dragItem);
-                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())), item->baseClip()->producer(info.track));
+                Mlt::Producer *prod;
+                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);
                 if (success) {
+                    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()) {
-                        tr->updateTransitionEndTrack(getPreviousVideoTrack(info.track));
                         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 end should be adjusted to clip on lower track
+                        if (m_dragItemInfo.track == info.track && !item->baseClip()->isTransparent() && getClipItemAtEnd(newTrInfo.endPos, m_document->tracksCount() - tr->transitionEndTrack())) {
+                            // transition end should stay the same
+                        } else {
+                            // transition end should be adjusted to clip
                             newTrInfo.endPos = newTrInfo.endPos + (newTrInfo.startPos - trInfo.startPos);
                         }
-                        new MoveTransitionCommand(this, trInfo, newTrInfo, true, moveCommand);
+                        if (newTrInfo.startPos < newTrInfo.endPos) new MoveTransitionCommand(this, trInfo, newTrInfo, true, moveCommand);
                     }
-                    if (tr == NULL || tr->endPos() < item->endPos()) {
+                    if (tr == NULL || tr->endPos() < m_dragItemInfo.endPos) {
                         // Check if there is a transition at clip end
                         tr = getTransitionItemAtEnd(m_dragItemInfo.endPos, m_dragItemInfo.track);
                         if (tr && tr->isAutomatic()) {
-                            tr->updateTransitionEndTrack(getPreviousVideoTrack(info.track));
                             ItemInfo trInfo = tr->info();
                             ItemInfo newTrInfo = trInfo;
+                            newTrInfo.track = info.track;
                             newTrInfo.endPos = m_dragItem->endPos();
-                            if (m_dragItemInfo.track == info.track && !item->baseClip()->isTransparent() && !getClipItemAtStart(trInfo.startPos, m_document->tracksCount() - tr->transitionEndTrack())) {
-                                // transition end should be moved
+                            if (m_dragItemInfo.track == info.track && !item->baseClip()->isTransparent() && getClipItemAtStart(trInfo.startPos, m_document->tracksCount() - tr->transitionEndTrack())) {
+                                // transition start should stay the same
+                            } else {
+                                // transition start should be moved
                                 newTrInfo.startPos = newTrInfo.startPos + (newTrInfo.endPos - trInfo.endPos);
                             }
-                            new MoveTransitionCommand(this, trInfo, newTrInfo, true, moveCommand);
+                            if (newTrInfo.startPos < newTrInfo.endPos)
+                                new MoveTransitionCommand(this, trInfo, newTrInfo, true, moveCommand);
                         }
                     }
                     // Also move automatic transitions (on upper track)
@@ -1815,13 +2254,15 @@ void CustomTrackView::mouseReleaseEvent(QMouseEvent * event) {
                         ItemInfo newTrInfo = trInfo;
                         newTrInfo.startPos = m_dragItem->startPos();
                         ClipItem * upperClip = getClipItemAt(m_dragItemInfo.startPos, m_dragItemInfo.track - 1);
-                        if ((!upperClip || !upperClip->baseClip()->isTransparent()) && !getClipItemAtEnd(newTrInfo.endPos, tr->track())) {
-                            // transition end should be adjusted to clip on upper track
-                            newTrInfo.endPos = newTrInfo.endPos + (newTrInfo.startPos - trInfo.startPos);
+                        if (!upperClip || !upperClip->baseClip()->isTransparent()) {
+                            if (!getClipItemAtEnd(newTrInfo.endPos, tr->track())) {
+                                // 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);
                         }
-                        new MoveTransitionCommand(this, trInfo, newTrInfo, true, moveCommand);
                     }
-                    if (m_dragItemInfo.track == info.track && (tr == NULL || tr->endPos() < item->endPos())) {
+                    if (m_dragItemInfo.track == info.track && (tr == NULL || tr->endPos() < m_dragItemInfo.endPos)) {
                         // Check if there is a transition at clip end
                         tr = getTransitionItemAtEnd(m_dragItemInfo.endPos, m_dragItemInfo.track - 1);
                         if (tr && tr->isAutomatic() && (m_document->tracksCount() - tr->transitionEndTrack()) == m_dragItemInfo.track) {
@@ -1829,44 +2270,63 @@ void CustomTrackView::mouseReleaseEvent(QMouseEvent * event) {
                             ItemInfo newTrInfo = trInfo;
                             newTrInfo.endPos = m_dragItem->endPos();
                             ClipItem * upperClip = getClipItemAt(m_dragItemInfo.startPos, m_dragItemInfo.track - 1);
-                            if ((!upperClip || !upperClip->baseClip()->isTransparent()) && !getClipItemAtStart(trInfo.startPos, tr->track())) {
-                                // transition start should be moved
-                                newTrInfo.startPos = newTrInfo.startPos + (newTrInfo.endPos - trInfo.endPos);
+                            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);
                             }
-                            new MoveTransitionCommand(this, trInfo, newTrInfo, true, moveCommand);
                         }
                     }
                     m_commandStack->push(moveCommand);
                 } else {
                     // undo last move and emit error message
-                    MoveClipCommand *command = new MoveClipCommand(this, info, m_dragItemInfo, true);
-                    m_commandStack->push(command);
+                    bool snap = KdenliveSettings::snaptopoints();
+                    KdenliveSettings::setSnaptopoints(false);
+                    item->setPos((int) m_dragItemInfo.startPos.frames(m_document->fps()), (int)(m_dragItemInfo.track * m_tracksHeight + 1));
+                    KdenliveSettings::setSnaptopoints(snap);
                     emit displayMessage(i18n("Cannot move clip to position %1", m_document->timecode().getTimecodeFromFrames(m_dragItemInfo.startPos.frames(m_document->fps()))), ErrorMessage);
                 }
+                m_document->setModified(true);
             }
             if (m_dragItem->type() == TRANSITIONWIDGET && (m_dragItemInfo.startPos != info.startPos || m_dragItemInfo.track != info.track)) {
-                MoveTransitionCommand *command = new MoveTransitionCommand(this, m_dragItemInfo, info, false);
-                m_commandStack->push(command);
-                Transition *transition = (Transition *) m_dragItem;
-                transition->updateTransitionEndTrack(getPreviousVideoTrack(m_dragItem->track()));
-                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);
-            }
+                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_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()));
+                }
+            }
         } else {
             // Moving several clips. We need to delete them and readd them to new position,
             // or they might overlap each other during the move
+            QGraphicsItemGroup *group = static_cast <QGraphicsItemGroup *>(m_dragItem->parentItem());
+            QList<QGraphicsItem *> items = group->childItems();
 
-            QList<QGraphicsItem *> items = m_selectionGroup->childItems();
-
-            QList<ItemInfo> clipsToMove = QList<ItemInfo> ();
-            QList<ItemInfo> transitionsToMove = QList<ItemInfo> ();
+            QList<ItemInfo> clipsToMove;
+            QList<ItemInfo> transitionsToMove;
 
-            GenTime timeOffset = GenTime(m_selectionGroup->scenePos().x(), m_document->fps()) - m_selectionGroupInfo.startPos;
-            const int trackOffset = m_selectionGroup->track() - m_selectionGroupInfo.track;
+            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);
             if (timeOffset != GenTime() || trackOffset != 0) {
-                QUndoCommand *moveClips = new QUndoCommand();
-                moveClips->setText(i18n("Move group"));
                 // remove items in MLT playlist
+
+                // Expand groups
+                int max = items.count();
+                for (int i = 0; i < max; i++) {
+                    if (items.at(i)->type() == GROUPWIDGET) {
+                        items += items.at(i)->childItems();
+                    }
+                }
+
                 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));
                     ItemInfo info = item->info();
                     if (item->type() == AVWIDGET) {
@@ -1885,34 +2345,52 @@ void CustomTrackView::mouseReleaseEvent(QMouseEvent * event) {
 
                 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;
                     AbstractClipItem *item = static_cast <AbstractClipItem *>(items.at(i));
                     item->updateItem();
                     ItemInfo info = item->info();
+                    int tracknumber = m_document->tracksCount() - info.track - 1;
+                    bool isLocked = m_document->trackInfoAt(tracknumber).isLocked;
+                    if (isLocked) {
+                        group->removeFromGroup(item);
+                        item->setItemLocked(true);
+                    }
+
                     if (item->type() == AVWIDGET) {
                         ClipItem *clip = static_cast <ClipItem*>(item);
                         info.track = m_document->tracksCount() - info.track;
-                        m_document->renderer()->mltInsertClip(info, clip->xml(), clip->baseClip()->producer(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);
+                        for (int i = 0; i < clip->effectsCount(); i++) {
+                            m_document->renderer()->mltAddEffect(info.track, info.startPos, clip->getEffectArgs(clip->effectAt(i)), false);
+                        }
                     } else {
                         Transition *tr = static_cast <Transition*>(item);
                         int newTrack = tr->transitionEndTrack();
                         if (!tr->forcedTrack()) {
-                            newTrack += trackOffset;
-                            if (newTrack < 0 || newTrack > m_document->tracksCount()) newTrack = getPreviousVideoTrack(info.track);
+                            newTrack = getPreviousVideoTrack(info.track);
                         }
                         tr->updateTransitionEndTrack(newTrack);
                         m_document->renderer()->mltAddTransition(tr->transitionTag(), newTrack, m_document->tracksCount() - info.track, info.startPos, info.endPos, tr->toXML());
                     }
                 }
 
-                new MoveGroupCommand(this, clipsToMove, transitionsToMove, timeOffset, trackOffset, false, moveClips);
-                m_commandStack->push(moveClips);
+                MoveGroupCommand *move = new MoveGroupCommand(this, clipsToMove, transitionsToMove, timeOffset, trackOffset, false);
+                m_commandStack->push(move);
 
-                QPointF top = m_selectionGroup->sceneBoundingRect().topLeft();
+                //QPointF top = group->sceneBoundingRect().topLeft();
                 //QPointF oldpos = m_selectionGroup->scenePos();
                 //kDebug()<<"SELECTION GRP POS: "<<m_selectionGroup->scenePos()<<", TOP: "<<top;
-                m_selectionGroup->setPos(top);
-                m_selectionGroupInfo.startPos = GenTime(m_selectionGroup->scenePos().x(), m_document->fps());
-                m_selectionGroupInfo.track = m_selectionGroup->track();
+                //group->setPos(top);
+                //TODO: get rid of the 3 lines below
+                if (m_selectionGroup) {
+                    m_selectionGroupInfo.startPos = GenTime(m_selectionGroup->scenePos().x(), m_document->fps());
+                    m_selectionGroupInfo.track = m_selectionGroup->track();
+                }
+                m_document->setModified(true);
             }
         }
 
@@ -1932,7 +2410,8 @@ void CustomTrackView::mouseReleaseEvent(QMouseEvent * event) {
                     ItemInfo trInfo = transition->info();
                     ItemInfo newTrInfo = trInfo;
                     newTrInfo.startPos = m_dragItem->startPos();
-                    new MoveTransitionCommand(this, trInfo, newTrInfo, true, resizeCommand);
+                    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);
@@ -1940,7 +2419,10 @@ void CustomTrackView::mouseReleaseEvent(QMouseEvent * event) {
                     ItemInfo trInfo = transition->info();
                     ItemInfo newTrInfo = trInfo;
                     newTrInfo.startPos = m_dragItem->startPos();
-                    new MoveTransitionCommand(this, trInfo, newTrInfo, true, resizeCommand);
+                    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);
+                    }
                 }
                 updateClipFade(static_cast <ClipItem *>(m_dragItem));
                 new ResizeClipCommand(this, m_dragItemInfo, info, false, resizeCommand);
@@ -1950,12 +2432,28 @@ void CustomTrackView::mouseReleaseEvent(QMouseEvent * event) {
                 emit displayMessage(i18n("Error when resizing clip"), ErrorMessage);
             }
         } else if (m_dragItem->type() == TRANSITIONWIDGET) {
-            MoveTransitionCommand *command = new MoveTransitionCommand(this, m_dragItemInfo, info, false);
-            m_commandStack->push(command);
             Transition *transition = static_cast <Transition *>(m_dragItem);
-            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);
-        }
+            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);
+        }
         //m_document->renderer()->doRefresh();
     } else if (m_operationMode == RESIZEEND && m_dragItem->endPos() != m_dragItemInfo.endPos) {
         // resize end
@@ -1973,26 +2471,19 @@ void CustomTrackView::mouseReleaseEvent(QMouseEvent * event) {
                     ItemInfo trInfo = tr->info();
                     ItemInfo newTrInfo = trInfo;
                     newTrInfo.endPos = m_dragItem->endPos();
-                    if (!static_cast<ClipItem*>(m_dragItem)->baseClip()->isTransparent() && !getClipItemAtStart(trInfo.startPos, m_document->tracksCount() - tr->transitionEndTrack())) {
-                        // transition start should be moved
-                        newTrInfo.startPos = newTrInfo.startPos + (newTrInfo.endPos - trInfo.endPos);
-                    }
-                    new MoveTransitionCommand(this, trInfo, newTrInfo, true, resizeCommand);
+                    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) kDebug() << "TRANS TRK: " << tr->transitionEndTrack() << ", CLP TRK:" << m_dragItemInfo.track << ", CALC: " << m_document->tracksCount() - tr->transitionEndTrack();
                 if (tr && tr->isAutomatic() && (m_document->tracksCount() - tr->transitionEndTrack()) == m_dragItemInfo.track) {
-                    kDebug() << ".............. GOT TRANSITION";
                     ItemInfo trInfo = tr->info();
                     ItemInfo newTrInfo = trInfo;
                     newTrInfo.endPos = m_dragItem->endPos();
-                    if (!static_cast<ClipItem*>(m_dragItem)->baseClip()->isTransparent() && !getClipItemAtStart(trInfo.startPos, trInfo.track)) {
-                        // transition start should be moved
-                        newTrInfo.startPos = newTrInfo.startPos + (newTrInfo.endPos - trInfo.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);
                     }
-                    new MoveTransitionCommand(this, trInfo, newTrInfo, true, resizeCommand);
                 }
 
                 new ResizeClipCommand(this, m_dragItemInfo, info, false, resizeCommand);
@@ -2003,10 +2494,26 @@ void CustomTrackView::mouseReleaseEvent(QMouseEvent * event) {
                 emit displayMessage(i18n("Error when resizing clip"), ErrorMessage);
             }
         } else if (m_dragItem->type() == TRANSITIONWIDGET) {
-            MoveTransitionCommand *command = new MoveTransitionCommand(this, m_dragItemInfo, info, false);
-            m_commandStack->push(command);
             Transition *transition = static_cast <Transition *>(m_dragItem);
-            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);
+            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);
+            }
+        }
+        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) {
@@ -2027,11 +2534,27 @@ void CustomTrackView::mouseReleaseEvent(QMouseEvent * event) {
                 slotUpdateClipEffect(item, effect, oldeffect, ix);
                 emit clipItemSelected(item, ix);
             }
-        } else if (item->fadeIn() != 0) {
+        } else if (item->fadeIn() != 0 && item->hasEffect("", "fade_from_black") == -1) {
             QDomElement 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);
+            int start = item->cropStart().frames(m_document->fps());
+            int end = item->fadeIn();
+            if (end == 0) {
+                slotDeleteEffect(item, oldeffect);
+            } 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);
+            }
+        }
     } else if (m_operationMode == FADEOUT) {
         // resize fade in effect
         ClipItem * item = (ClipItem *) m_dragItem;
@@ -2047,14 +2570,33 @@ void CustomTrackView::mouseReleaseEvent(QMouseEvent * event) {
                 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);
             }
-        } else if (item->fadeOut() != 0) {
+        } else if (item->fadeOut() != 0 && item->hasEffect("", "fade_to_black") == -1) {
             QDomElement effect = MainWindow::audioEffects.getEffectByTag("volume", "fadeout").cloneNode().toElement();
-            EffectsList::setParameter(effect, "out", QString::number(item->fadeOut()));
+            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);
+            int end = (item->duration() + item->cropStart()).frames(m_document->fps());
+            int start = item->fadeOut();
+            if (start == 0) {
+                slotDeleteEffect(item, oldeffect);
+            } 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);
+            }
+        }
     } else if (m_operationMode == KEYFRAME) {
         // update the MLT effect
         ClipItem * item = (ClipItem *) m_dragItem;
@@ -2066,12 +2608,13 @@ void CustomTrackView::mouseReleaseEvent(QMouseEvent * event) {
         updateEffect(m_document->tracksCount() - item->track(), item->startPos(), item->selectedEffect(), item->selectedEffectIndex());
     }
 
-    emit transitionItemSelected((m_dragItem && m_dragItem->type() == TRANSITIONWIDGET) ? static_cast <Transition *>(m_dragItem) : NULL);
-    m_document->setModified(true);
+    emit transitionItemSelected((m_dragItem && m_dragItem->type() == TRANSITIONWIDGET && m_dragItem->isSelected()) ? static_cast <Transition *>(m_dragItem) : NULL);
+    if (m_operationMode != NONE && m_operationMode != MOVE) m_document->setModified(true);
     m_operationMode = NONE;
 }
 
-void CustomTrackView::deleteClip(ItemInfo info) {
+void CustomTrackView::deleteClip(ItemInfo info)
+{
     ClipItem *item = getClipItemAt((int) info.startPos.frames(m_document->fps()) + 1, info.track);
 
     if (!item || m_document->renderer()->mltRemoveClip(m_document->tracksCount() - info.track, info.startPos) == false) {
@@ -2084,7 +2627,7 @@ void CustomTrackView::deleteClip(ItemInfo info) {
 
     if (item->baseClip()->isTransparent()) {
         // also remove automatic transition
-        Transition *tr = getTransitionItemAt((int) info.startPos.frames(m_document->fps()), info.track);
+        Transition *tr = getTransitionItemAt(info.startPos, info.track);
         if (tr && tr->isAutomatic()) {
             m_document->renderer()->mltDeleteTransition(tr->transitionTag(), tr->transitionEndTrack(), m_document->tracksCount() - info.track, info.startPos, info.endPos, tr->toXML());
             scene()->removeItem(tr);
@@ -2094,34 +2637,70 @@ void CustomTrackView::deleteClip(ItemInfo info) {
     scene()->removeItem(item);
     if (m_dragItem == item) m_dragItem = NULL;
     delete item;
+    m_document->setModified(true);
     m_document->renderer()->doRefresh();
 }
 
-void CustomTrackView::deleteSelectedClips() {
+void CustomTrackView::deleteSelectedClips()
+{
+    resetSelectionGroup();
     QList<QGraphicsItem *> itemList = scene()->selectedItems();
     if (itemList.count() == 0) {
         emit displayMessage(i18n("Select clip to delete"), ErrorMessage);
         return;
     }
+    scene()->clearSelection();
     QUndoCommand *deleteSelected = new QUndoCommand();
     deleteSelected->setText(i18n("Delete selected items"));
+    bool resetGroup = false;
+
+    // expand & destroy groups
+    for (int i = 0; i < itemList.count(); i++) {
+        if (itemList.at(i)->type() == GROUPWIDGET) {
+            QList<QGraphicsItem *> children = itemList.at(i)->childItems();
+            itemList += children;
+            QList <ItemInfo> clipInfos;
+            QList <ItemInfo> transitionInfos;
+            GenTime currentPos = GenTime(m_cursorPos, m_document->fps());
+            for (int j = 0; j < children.count(); j++) {
+                if (children.at(j)->type() == AVWIDGET) {
+                    AbstractClipItem *clip = static_cast <AbstractClipItem *>(children.at(j));
+                    if (!clip->isItemLocked()) clipInfos.append(clip->info());
+                } else if (children.at(j)->type() == TRANSITIONWIDGET) {
+                    AbstractClipItem *clip = static_cast <AbstractClipItem *>(children.at(j));
+                    if (!clip->isItemLocked()) transitionInfos.append(clip->info());
+                }
+            }
+            if (clipInfos.count() > 0) {
+                new GroupClipsCommand(this, clipInfos, transitionInfos, false, deleteSelected);
+            }
+        }
+    }
+
+
     for (int i = 0; i < itemList.count(); i++) {
         if (itemList.at(i)->type() == AVWIDGET) {
             ClipItem *item = static_cast <ClipItem *>(itemList.at(i));
+            if (item->parentItem()) resetGroup = true;
             new AddTimelineClipCommand(this, item->xml(), item->clipProducer(), item->info(), item->effectList(), true, true, deleteSelected);
+            emit clipItemSelected(NULL);
         } else if (itemList.at(i)->type() == TRANSITIONWIDGET) {
             Transition *item = static_cast <Transition *>(itemList.at(i));
+            if (item->parentItem()) resetGroup = true;
             ItemInfo info;
             info.startPos = item->startPos();
             info.endPos = item->endPos();
             info.track = item->track();
             new AddTransitionCommand(this, info, item->transitionEndTrack(), item->toXML(), true, true, deleteSelected);
+            emit transitionItemSelected(NULL);
         }
     }
+
     m_commandStack->push(deleteSelected);
 }
 
-void CustomTrackView::changeClipSpeed() {
+void CustomTrackView::changeClipSpeed()
+{
     QList<QGraphicsItem *> itemList = scene()->selectedItems();
     if (itemList.count() == 0) {
         emit displayMessage(i18n("Select clip to change speed"), ErrorMessage);
@@ -2129,81 +2708,193 @@ void CustomTrackView::changeClipSpeed() {
     }
     QUndoCommand *changeSelected = new QUndoCommand();
     changeSelected->setText("Edit clip speed");
+    int count = 0;
+    int percent = -1;
+    bool ok;
     for (int i = 0; i < itemList.count(); i++) {
         if (itemList.at(i)->type() == AVWIDGET) {
             ClipItem *item = static_cast <ClipItem *>(itemList.at(i));
             ItemInfo info = item->info();
-            int percent = QInputDialog::getInteger(this, i18n("Edit Clip Speed"), i18n("New speed (percents)"), item->speed() * 100, 1, 300);
+            if (percent == -1) percent = QInputDialog::getInteger(this, i18n("Edit Clip Speed"), i18n("New speed (percents)"), item->speed() * 100, 1, 10000, 1, &ok);
+            if (!ok) break;
             double speed = (double) percent / 100.0;
-            if (item->speed() != speed)
-                new ChangeSpeedCommand(this, info, item->speed(), speed, item->clipProducer(), true, changeSelected);
+            if (item->speed() != speed && (item->clipType() == VIDEO || item->clipType() == AV)) {
+                count++;
+                new ChangeSpeedCommand(this, info, item->speed(), speed, item->clipProducer(), changeSelected);
+            }
         }
     }
-    m_commandStack->push(changeSelected);
+    if (count > 0) m_commandStack->push(changeSelected);
+    else delete changeSelected;
 }
 
-void CustomTrackView::doChangeClipSpeed(ItemInfo info, const double speed, const double oldspeed, const QString &id) {
+void CustomTrackView::doChangeClipSpeed(ItemInfo info, const double speed, const double oldspeed, const QString &id)
+{
     DocClipBase *baseclip = m_document->clipManager()->getClipById(id);
     ClipItem *item = getClipItemAt((int) info.startPos.frames(m_document->fps()) + 1, info.track);
+    if (!item) {
+        kDebug() << "ERROR: Cannot find clip for speed change";
+        emit displayMessage(i18n("Cannot find clip for speed change"), ErrorMessage);
+        return;
+    }
     info.track = m_document->tracksCount() - item->track();
     int endPos = m_document->renderer()->mltChangeClipSpeed(info, speed, oldspeed, baseclip->producer());
-    //kDebug() << "//CH CLIP SPEED: " << speed << "x" << oldspeed << ", END POS: " << endPos;
-    item->setSpeed(speed);
-    item->updateRectGeometry();
-    if (item->cropDuration().frames(m_document->fps()) > endPos)
-        item->AbstractClipItem::resizeEnd(info.startPos.frames(m_document->fps()) + endPos, speed);
-    m_document->setModified(true);
+    if (endPos >= 0) {
+        item->setSpeed(speed);
+        item->updateRectGeometry();
+        if (item->cropDuration().frames(m_document->fps()) > endPos)
+            item->AbstractClipItem::resizeEnd(info.startPos.frames(m_document->fps()) + endPos, speed);
+        m_document->setModified(true);
+    } else emit displayMessage(i18n("Invalid clip"), ErrorMessage);
 }
 
-void CustomTrackView::cutSelectedClips() {
+void CustomTrackView::cutSelectedClips()
+{
     QList<QGraphicsItem *> itemList = scene()->selectedItems();
     GenTime currentPos = GenTime(m_cursorPos, m_document->fps());
     for (int i = 0; i < itemList.count(); i++) {
         if (itemList.at(i)->type() == AVWIDGET) {
             ClipItem *item = static_cast <ClipItem *>(itemList.at(i));
-            if (currentPos > item->startPos() && currentPos <  item->endPos()) {
-                RazorClipCommand *command = new RazorClipCommand(this, item->info(), currentPos, true);
+            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()) {
+                RazorClipCommand *command = new RazorClipCommand(this, item->info(), currentPos);
                 m_commandStack->push(command);
             }
         }
     }
 }
 
-void CustomTrackView::addClip(QDomElement xml, const QString &clipId, ItemInfo info, EffectsList effects) {
+void CustomTrackView::groupClips(bool group)
+{
+    QList<QGraphicsItem *> itemList = scene()->selectedItems();
+    QList <ItemInfo> clipInfos;
+    QList <ItemInfo> transitionInfos;
+    GenTime currentPos = GenTime(m_cursorPos, m_document->fps());
+
+    // Expand groups
+    int max = itemList.count();
+    for (int i = 0; i < max; i++) {
+        if (itemList.at(i)->type() == GROUPWIDGET) {
+            itemList += itemList.at(i)->childItems();
+        }
+    }
+
+    for (int i = 0; i < itemList.count(); i++) {
+        if (itemList.at(i)->type() == AVWIDGET) {
+            AbstractClipItem *clip = static_cast <AbstractClipItem *>(itemList.at(i));
+            if (!clip->isItemLocked()) clipInfos.append(clip->info());
+        } else if (itemList.at(i)->type() == TRANSITIONWIDGET) {
+            AbstractClipItem *clip = static_cast <AbstractClipItem *>(itemList.at(i));
+            if (!clip->isItemLocked()) transitionInfos.append(clip->info());
+        }
+    }
+    if (clipInfos.count() > 0) {
+        GroupClipsCommand *command = new GroupClipsCommand(this, clipInfos, transitionInfos, group);
+        m_commandStack->push(command);
+    }
+}
+
+void CustomTrackView::doGroupClips(QList <ItemInfo> clipInfos, QList <ItemInfo> transitionInfos, bool group)
+{
+    resetSelectionGroup();
+    m_scene->clearSelection();
+    if (!group) {
+        for (int i = 0; i < clipInfos.count(); i++) {
+            ClipItem *clip = getClipItemAt(clipInfos.at(i).startPos, clipInfos.at(i).track);
+            if (clip == NULL) continue;
+            if (clip->parentItem() && clip->parentItem()->type() == GROUPWIDGET) {
+                AbstractGroupItem *grp = static_cast <AbstractGroupItem *>(clip->parentItem());
+                m_document->clipManager()->removeGroup(grp);
+                scene()->destroyItemGroup(grp);
+            }
+            clip->setFlags(QGraphicsItem::ItemIsMovable | QGraphicsItem::ItemIsSelectable);
+        }
+        for (int i = 0; i < transitionInfos.count(); i++) {
+            Transition *tr = getTransitionItemAt(transitionInfos.at(i).startPos, transitionInfos.at(i).track);
+            if (tr == NULL) continue;
+            if (tr->parentItem() && tr->parentItem()->type() == GROUPWIDGET) {
+                AbstractGroupItem *grp = static_cast <AbstractGroupItem *>(tr->parentItem());
+                m_document->clipManager()->removeGroup(grp);
+                scene()->destroyItemGroup(grp);
+            }
+            tr->setFlags(QGraphicsItem::ItemIsMovable | QGraphicsItem::ItemIsSelectable);
+        }
+        m_document->setModified(true);
+        return;
+    }
+
+    QList <QGraphicsItemGroup *> groups;
+    for (int i = 0; i < clipInfos.count(); i++) {
+        ClipItem *clip = getClipItemAt(clipInfos.at(i).startPos, clipInfos.at(i).track);
+        if (clip) {
+            clip->setSelected(true);
+        }
+    }
+    for (int i = 0; i < transitionInfos.count(); i++) {
+        Transition *clip = getTransitionItemAt(transitionInfos.at(i).startPos, transitionInfos.at(i).track);
+        if (clip) {
+            clip->setSelected(true);
+        }
+    }
+
+    groupSelectedItems(false, true);
+    m_document->setModified(true);
+}
+
+void CustomTrackView::addClip(QDomElement xml, const QString &clipId, ItemInfo info, EffectsList effects)
+{
     DocClipBase *baseclip = m_document->clipManager()->getClipById(clipId);
     if (baseclip == NULL) {
         emit displayMessage(i18n("No clip copied"), ErrorMessage);
         return;
     }
-    ClipItem *item = new ClipItem(baseclip, info, m_document->fps());
+    ClipItem *item = new ClipItem(baseclip, info, m_document->fps(), xml.attribute("speed", "1").toDouble());
     item->setEffectList(effects);
+    if (xml.hasAttribute("audio_only")) item->setAudioOnly(true);
+    else if (xml.hasAttribute("video_only")) item->setVideoOnly(true);
     scene()->addItem(item);
+
+    int tracknumber = m_document->tracksCount() - info.track - 1;
+    bool isLocked = m_document->trackInfoAt(tracknumber).isLocked;
+    if (isLocked) item->setItemLocked(true);
+
     if (item->baseClip()->isTransparent()) {
         // add transparency transition
         int endTrack = getPreviousVideoTrack(info.track);
-        Transition *tr = new Transition(info, endTrack, m_document->fps(), MainWindow::transitions.getEffectByTag("composite", "alphatransparency"), true);
-        scene()->addItem(tr);
-        m_document->renderer()->mltAddTransition(tr->transitionTag(), endTrack, m_document->tracksCount() - info.track, info.startPos, info.endPos, tr->toXML());
+        Transition *tr = new Transition(info, endTrack, m_document->fps(), MainWindow::transitions.getEffectByTag("composite", "composite"), true);
+        if (m_document->renderer()->mltAddTransition(tr->transitionTag(), endTrack, m_document->tracksCount() - info.track, info.startPos, info.endPos, tr->toXML())) scene()->addItem(tr);
+        else {
+            emit displayMessage(i18n("Cannot add transition"), ErrorMessage);
+            delete tr;
+        }
+
     }
 
     baseclip->addReference();
     m_document->updateClip(baseclip->getId());
     info.track = m_document->tracksCount() - info.track;
-    m_document->renderer()->mltInsertClip(info, xml, baseclip->producer(info.track));
+    Mlt::Producer *prod;
+    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);
     for (int i = 0; i < item->effectsCount(); i++) {
         m_document->renderer()->mltAddEffect(info.track, info.startPos, item->getEffectArgs(item->effectAt(i)), false);
     }
+    m_document->setModified(true);
     m_document->renderer()->doRefresh();
 }
 
-void CustomTrackView::slotUpdateClip(const QString &clipId) {
+void CustomTrackView::slotUpdateClip(const QString &clipId)
+{
     QList<QGraphicsItem *> list = scene()->items();
     ClipItem *clip = NULL;
     for (int i = 0; i < list.size(); ++i) {
         if (list.at(i)->type() == AVWIDGET) {
             clip = static_cast <ClipItem *>(list.at(i));
             if (clip->clipProducer() == clipId) {
-                clip->refreshClip();
+                clip->refreshClip(true);
                 ItemInfo info = clip->info();
                 info.track = m_document->tracksCount() - clip->track();
                 m_document->renderer()->mltUpdateClip(info, clip->xml(), clip->baseClip()->producer());
@@ -2212,10 +2903,12 @@ void CustomTrackView::slotUpdateClip(const QString &clipId) {
     }
 }
 
-ClipItem *CustomTrackView::getClipItemAtEnd(GenTime pos, int track) {
-    QList<QGraphicsItem *> list = scene()->items(QPointF(pos.frames(m_document->fps()) - 1, track * m_tracksHeight + m_tracksHeight / 2));
+ClipItem *CustomTrackView::getClipItemAtEnd(GenTime pos, int track)
+{
+    int framepos = (int)(pos.frames(m_document->fps()));
+    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) {
+    for (int i = 0; i < list.size(); i++) {
         if (list.at(i)->type() == AVWIDGET) {
             ClipItem *test = static_cast <ClipItem *>(list.at(i));
             if (test->endPos() == pos) clip = test;
@@ -2225,10 +2918,11 @@ ClipItem *CustomTrackView::getClipItemAtEnd(GenTime pos, int track) {
     return clip;
 }
 
-ClipItem *CustomTrackView::getClipItemAtStart(GenTime pos, int track) {
+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) {
+    for (int i = 0; i < list.size(); i++) {
         if (list.at(i)->type() == AVWIDGET) {
             ClipItem *test = static_cast <ClipItem *>(list.at(i));
             if (test->startPos() == pos) clip = test;
@@ -2238,10 +2932,11 @@ ClipItem *CustomTrackView::getClipItemAtStart(GenTime pos, int track) {
     return clip;
 }
 
-ClipItem *CustomTrackView::getClipItemAt(int pos, int track) {
-    QList<QGraphicsItem *> list = scene()->items(QPointF(pos , track * m_tracksHeight + m_tracksHeight / 2));
+ClipItem *CustomTrackView::getClipItemAt(int pos, int track)
+{
+    QList<QGraphicsItem *> list = scene()->items(QPointF(pos, track * m_tracksHeight + m_tracksHeight / 2));
     ClipItem *clip = NULL;
-    for (int i = 0; i < list.size(); ++i) {
+    for (int i = 0; i < list.size(); i++) {
         if (list.at(i)->type() == AVWIDGET) {
             clip = static_cast <ClipItem *>(list.at(i));
             break;
@@ -2250,15 +2945,17 @@ ClipItem *CustomTrackView::getClipItemAt(int pos, int track) {
     return clip;
 }
 
-ClipItem *CustomTrackView::getClipItemAt(GenTime pos, int track) {
+ClipItem *CustomTrackView::getClipItemAt(GenTime pos, int track)
+{
     int framepos = (int)(pos.frames(m_document->fps()));
     return getClipItemAt(framepos, track);
 }
 
-Transition *CustomTrackView::getTransitionItemAt(int pos, int track) {
+Transition *CustomTrackView::getTransitionItemAt(int pos, int track)
+{
     QList<QGraphicsItem *> list = scene()->items(QPointF(pos, (track + 1) * m_tracksHeight));
     Transition *clip = NULL;
-    for (int i = 0; i < list.size(); ++i) {
+    for (int i = 0; i < list.size(); i++) {
         if (list.at(i)->type() == TRANSITIONWIDGET) {
             clip = static_cast <Transition *>(list.at(i));
             break;
@@ -2267,16 +2964,17 @@ Transition *CustomTrackView::getTransitionItemAt(int pos, int track) {
     return clip;
 }
 
-Transition *CustomTrackView::getTransitionItemAt(GenTime pos, int track) {
-    int framepos = (int)(pos.frames(m_document->fps()));
-    return getTransitionItemAt(framepos, track);
+Transition *CustomTrackView::getTransitionItemAt(GenTime pos, int track)
+{
+    return getTransitionItemAt(pos.frames(m_document->fps()), track);
 }
 
-Transition *CustomTrackView::getTransitionItemAtEnd(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));
     Transition *clip = NULL;
-    for (int i = 0; i < list.size(); ++i) {
+    for (int i = 0; i < list.size(); i++) {
         if (list.at(i)->type() == TRANSITIONWIDGET) {
             Transition *test = static_cast <Transition *>(list.at(i));
             if (test->endPos() == pos) clip = test;
@@ -2286,7 +2984,8 @@ Transition *CustomTrackView::getTransitionItemAtEnd(GenTime pos, int track) {
     return clip;
 }
 
-Transition *CustomTrackView::getTransitionItemAtStart(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));
     Transition *clip = NULL;
     for (int i = 0; i < list.size(); ++i) {
@@ -2299,7 +2998,8 @@ 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)
+{
     if (m_selectionGroup) resetSelectionGroup(false);
     ClipItem *item = getClipItemAt((int) start.startPos.frames(m_document->fps()) + 1, start.track);
     if (!item) {
@@ -2307,16 +3007,28 @@ void CustomTrackView::moveClip(const ItemInfo start, const ItemInfo end) {
         kDebug() << "----------------  ERROR, CANNOT find clip to move at.. ";
         return;
     }
-    bool success = m_document->renderer()->mltMoveClip((int)(m_document->tracksCount() - start.track), (int)(m_document->tracksCount() - end.track), (int) start.startPos.frames(m_document->fps()), (int)end.startPos.frames(m_document->fps()), item->baseClip()->producer(end.track));
+    Mlt::Producer *prod;
+    if (item->isAudioOnly()) prod = item->baseClip()->audioProducer(end.track);
+    else if (item->isVideoOnly()) prod = item->baseClip()->videoProducer();
+    else prod = item->baseClip()->producer(end.track);
+
+    bool success = m_document->renderer()->mltMoveClip((int)(m_document->tracksCount() - start.track), (int)(m_document->tracksCount() - end.track), (int) start.startPos.frames(m_document->fps()), (int)end.startPos.frames(m_document->fps()), prod);
     if (success) {
         bool snap = KdenliveSettings::snaptopoints();
         KdenliveSettings::setSnaptopoints(false);
         item->setPos((int) end.startPos.frames(m_document->fps()), (int)(end.track * m_tracksHeight + 1));
+
+        int tracknumber = m_document->tracksCount() - end.track - 1;
+        bool isLocked = m_document->trackInfoAt(tracknumber).isLocked;
         m_scene->clearSelection();
-        item->setSelected(true);
+        if (isLocked) item->setItemLocked(true);
+        else {
+            if (item->isItemLocked()) item->setItemLocked(false);
+            item->setSelected(true);
+        }
         if (item->baseClip()->isTransparent()) {
             // Also move automatic transition
-            Transition *tr = getTransitionItemAt((int) start.startPos.frames(m_document->fps()), start.track);
+            Transition *tr = getTransitionItemAt(start.startPos, start.track);
             if (tr && tr->isAutomatic()) {
                 tr->updateTransitionEndTrack(getPreviousVideoTrack(end.track));
                 m_document->renderer()->mltMoveTransition(tr->transitionTag(), m_document->tracksCount() - start.track, m_document->tracksCount() - end.track, tr->transitionEndTrack(), start.startPos, start.endPos, end.startPos, end.endPos);
@@ -2324,6 +3036,7 @@ void CustomTrackView::moveClip(const ItemInfo start, const ItemInfo end) {
             }
         }
         KdenliveSettings::setSnaptopoints(snap);
+        m_document->setModified(true);
     } else {
         // 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);
@@ -2331,21 +3044,32 @@ void CustomTrackView::moveClip(const ItemInfo start, const ItemInfo end) {
     kDebug() << " // MOVED CLIP TO: " << end.startPos.frames(25) << ", ITEM START: " << item->startPos().frames(25);
 }
 
-void CustomTrackView::moveGroup(QList <ItemInfo> startClip, QList <ItemInfo> startTransition, const GenTime offset, const int trackOffset, bool reverseMove) {
+void CustomTrackView::moveGroup(QList <ItemInfo> startClip, QList <ItemInfo> startTransition, const GenTime offset, const int trackOffset, bool reverseMove)
+{
     // Group Items
-    kDebug() << "// GROUP MOVE; OFFSET: " << offset.frames(25) << ", TK OFF: " << trackOffset;
+    kDebug() << "//GRP MOVE, REVERS:" << reverseMove;
+    kDebug() << "// GROUP MOV; OFFSET: " << offset.frames(25) << ", TK OFF: " << trackOffset;
     resetSelectionGroup();
     m_scene->clearSelection();
+    QList<QGraphicsItem *> itemList = items();
+    for (int i = 0; i < itemList.count(); i++) {
+        if (itemList.at(i)->type() == AVWIDGET)
+            kDebug() << "ITEM " << i << ": " << static_cast <AbstractClipItem *>(itemList.at(i))->startPos().frames(25) << ",REEL: " << itemList.at(i)->scenePos();
+    }
+
     for (int i = 0; i < startClip.count(); i++) {
         if (reverseMove) {
             startClip[i].startPos = startClip.at(i).startPos - offset;
             startClip[i].track = startClip.at(i).track - trackOffset;
         }
+        //kDebug()<<"//LKING FR CLIP AT:"<<startClip.at(i).startPos.frames(25)<<", TK:"<<startClip.at(i).track;
         ClipItem *clip = getClipItemAt(startClip.at(i).startPos, startClip.at(i).track);
         if (clip) {
-            clip->setSelected(true);
+            clip->setItemLocked(false);
+            if (clip->parentItem()) clip->parentItem()->setSelected(true);
+            else clip->setSelected(true);
             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);
     }
     for (int i = 0; i < startTransition.count(); i++) {
         if (reverseMove) {
@@ -2354,36 +3078,52 @@ void CustomTrackView::moveGroup(QList <ItemInfo> startClip, QList <ItemInfo> sta
         }
         Transition *tr = getTransitionItemAt(startTransition.at(i).startPos, startTransition.at(i).track);
         if (tr) {
-            tr->setSelected(true);
+            tr->setItemLocked(false);
+            if (tr->parentItem()) tr->parentItem()->setSelected(true);
+            else tr->setSelected(true);
             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();
+    groupSelectedItems(true);
     if (m_selectionGroup) {
-        QPointF pos = m_selectionGroup->pos();
-        qreal posx = pos.x() + offset.frames(m_document->fps());
-        qreal posy = pos.y() + trackOffset * (qreal) m_tracksHeight;
         bool snap = KdenliveSettings::snaptopoints();
         KdenliveSettings::setSnaptopoints(false);
 
-        m_selectionGroup->setPos(posx, posy);
+        m_selectionGroup->moveBy(offset.frames(m_document->fps()), trackOffset * (qreal) m_tracksHeight);
 
-        QPointF top = m_selectionGroup->sceneBoundingRect().topLeft();
-        m_selectionGroup->setPos(top);
-        m_selectionGroupInfo.startPos = GenTime(m_selectionGroup->scenePos().x(), m_document->fps());
-        m_selectionGroupInfo.track = m_selectionGroup->track();
+        kDebug() << "%% GRP NEW POS: " << m_selectionGroup->scenePos().x();
 
         QList<QGraphicsItem *> children = m_selectionGroup->childItems();
+        // Expand groups
+        int max = children.count();
+        for (int i = 0; i < max; i++) {
+            if (children.at(i)->type() == GROUPWIDGET) {
+                children += children.at(i)->childItems();
+            }
+        }
+        kDebug() << "// GRP MOVE; FOUND CHILDREN:" << children.count();
+
         for (int i = 0; i < children.count(); i++) {
             // re-add items in correct place
+            if (children.at(i)->type() != AVWIDGET && children.at(i)->type() != TRANSITIONWIDGET) continue;
             AbstractClipItem *item = static_cast <AbstractClipItem *>(children.at(i));
             item->updateItem();
             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 (item->type() == AVWIDGET) {
                 ClipItem *clip = static_cast <ClipItem*>(item);
                 info.track = m_document->tracksCount() - info.track;
-                m_document->renderer()->mltInsertClip(info, clip->xml(), clip->baseClip()->producer(info.track));
-            } else {
+                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);
+                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;
@@ -2397,12 +3137,19 @@ void CustomTrackView::moveGroup(QList <ItemInfo> startClip, QList <ItemInfo> sta
             }
         }
         KdenliveSettings::setSnaptopoints(snap);
-    }
+    } else kDebug() << "///////// WARNING; NO GROUP TO MOVE";
 
+    kDebug() << "///////// DONE+++++++++++++";
+    itemList = items();
+    for (int i = 0; i < itemList.count(); i++) {
+        if (itemList.at(i)->type() == AVWIDGET)
+            kDebug() << "ITEM " << i << ": " << static_cast <AbstractClipItem *>(itemList.at(i))->startPos().frames(25) << ",REEL: " << itemList.at(i)->scenePos();
+    }
 }
 
-void CustomTrackView::moveTransition(const ItemInfo start, const ItemInfo end) {
-    Transition *item = getTransitionItemAt((int)start.startPos.frames(m_document->fps()), start.track);
+void CustomTrackView::moveTransition(const ItemInfo start, const ItemInfo end)
+{
+    Transition *item = getTransitionItemAt(start.startPos, start.track);
     if (!item) {
         emit displayMessage(i18n("Cannot move transition at time: %1 on track %2", m_document->timecode().getTimecodeFromFrames(start.startPos.frames(m_document->fps())), start.track), ErrorMessage);
         kDebug() << "----------------  ERROR, CANNOT find transition to move... ";// << startPos.x() * m_scale * FRAME_SIZE + 1 << ", " << startPos.y() * m_tracksHeight + m_tracksHeight / 2;
@@ -2431,31 +3178,37 @@ void CustomTrackView::moveTransition(const ItemInfo start, const ItemInfo end) {
     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);
+    if (m_dragItem && m_dragItem == item) emit transitionItemSelected(item);
 }
 
-void CustomTrackView::resizeClip(const ItemInfo start, const ItemInfo end) {
-    int offset = 0;
+void CustomTrackView::resizeClip(const ItemInfo start, const ItemInfo end)
+{
     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()) + offset), start.track);
+    ClipItem *item = getClipItemAt((int)(start.startPos.frames(m_document->fps())), start.track);
     if (!item) {
         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;
     }
+    if (item->parentItem()) {
+        // Item is part of a group, reset group
+        resetSelectionGroup();
+    }
     bool snap = KdenliveSettings::snaptopoints();
     KdenliveSettings::setSnaptopoints(false);
-    if (resizeClipStart) {
+    if (resizeClipStart && start.startPos != end.startPos) {
         ItemInfo clipinfo = item->info();
         clipinfo.track = m_document->tracksCount() - clipinfo.track;
         bool success = m_document->renderer()->mltResizeClipStart(clipinfo, end.startPos - item->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);
         } else emit displayMessage(i18n("Error when resizing clip"), ErrorMessage);
-    } else {
+    } else if (!resizeClipStart) {
         ItemInfo clipinfo = item->info();
         clipinfo.track = m_document->tracksCount() - clipinfo.track;
         bool success = m_document->renderer()->mltResizeClipEnd(clipinfo, end.endPos - clipinfo.startPos);
@@ -2464,81 +3217,138 @@ void CustomTrackView::resizeClip(const ItemInfo start, const ItemInfo end) {
             updateClipFade(item, true);
         } else emit displayMessage(i18n("Error when resizing clip"), ErrorMessage);
     }
+    if (end.cropStart != start.cropStart) {
+        kDebug() << "// RESIZE CROP, DIFF: " << (end.cropStart - start.cropStart).frames(25);
+        ItemInfo clipinfo = end;
+        clipinfo.track = m_document->tracksCount() - end.track;
+        bool success = m_document->renderer()->mltResizeClipCrop(clipinfo, end.cropStart - start.cropStart);
+        if (success) {
+            item->setCropStart(end.cropStart);
+            item->resetThumbs();
+        }
+    }
     m_document->renderer()->doRefresh();
     KdenliveSettings::setSnaptopoints(snap);
 }
 
-void CustomTrackView::updateClipFade(ClipItem * item, bool updateFadeOut) {
+void CustomTrackView::updateClipFade(ClipItem * item, bool updateFadeOut)
+{
     if (!updateFadeOut) {
         int end = item->fadeIn();
         if (end != 0) {
             // there is a fade in effect
             int effectPos = item->hasEffect("volume", "fadein");
-            if (effectPos == -1) return;
-            QDomElement oldeffect = item->effectAt(effectPos);
-            int start = item->cropStart().frames(m_document->fps());
-            int max = item->cropDuration().frames(m_document->fps());
-            if (end > max) {
-                item->setFadeIn(max);
-                end = item->fadeIn();
-            }
-            end += start;
-            EffectsList::setParameter(oldeffect, "in", QString::number(start));
-            EffectsList::setParameter(oldeffect, "out", QString::number(end));
-            if (!m_document->renderer()->mltEditEffect(m_document->tracksCount() - item->track(), item->startPos(), item->getEffectArgs(oldeffect)))
-                emit displayMessage(i18n("Problem editing effect"), ErrorMessage);
-            // if fade effect is displayed, update the effect edit widget with new clip duration
-            if (item->isSelected() && effectPos == item->selectedEffectIndex()) emit clipItemSelected(item, effectPos);
+            if (effectPos != -1) {
+                QDomElement oldeffect = item->effectAt(effectPos);
+                int start = item->cropStart().frames(m_document->fps());
+                int max = item->cropDuration().frames(m_document->fps());
+                if (end > max) {
+                    item->setFadeIn(max);
+                    end = item->fadeIn();
+                }
+                end += start;
+                EffectsList::setParameter(oldeffect, "in", QString::number(start));
+                EffectsList::setParameter(oldeffect, "out", QString::number(end));
+                if (!m_document->renderer()->mltEditEffect(m_document->tracksCount() - item->track(), item->startPos(), item->getEffectArgs(oldeffect)))
+                    emit displayMessage(i18n("Problem editing effect"), ErrorMessage);
+                // if fade effect is displayed, update the effect edit widget with new clip duration
+                if (item->isSelected() && effectPos == item->selectedEffectIndex()) emit clipItemSelected(item, effectPos);
+            }
+            effectPos = item->hasEffect("brightness", "fade_from_black");
+            if (effectPos != -1) {
+                QDomElement oldeffect = item->effectAt(effectPos);
+                int start = item->cropStart().frames(m_document->fps());
+                int max = item->cropDuration().frames(m_document->fps());
+                if (end > max) {
+                    item->setFadeIn(max);
+                    end = item->fadeIn();
+                }
+                end += start;
+                EffectsList::setParameter(oldeffect, "in", QString::number(start));
+                EffectsList::setParameter(oldeffect, "out", QString::number(end));
+                if (!m_document->renderer()->mltEditEffect(m_document->tracksCount() - item->track(), item->startPos(), item->getEffectArgs(oldeffect)))
+                    emit displayMessage(i18n("Problem editing effect"), ErrorMessage);
+                // if fade effect is displayed, update the effect edit widget with new clip duration
+                if (item->isSelected() && effectPos == item->selectedEffectIndex()) emit clipItemSelected(item, effectPos);
+            }
         }
     } else {
         int start = item->fadeOut();
         if (start != 0) {
             // there is a fade in effect
             int effectPos = item->hasEffect("volume", "fadeout");
-            if (effectPos == -1) return;
-            QDomElement oldeffect = item->effectAt(effectPos);
-            int end = (item->duration() - item->cropStart()).frames(m_document->fps());
-            int max = item->cropDuration().frames(m_document->fps());
-            if (end > max) {
-                item->setFadeOut(max);
-                start = item->fadeOut();
+            if (effectPos != -1) {
+                QDomElement oldeffect = item->effectAt(effectPos);
+                int end = (item->duration() - item->cropStart()).frames(m_document->fps());
+                int max = item->cropDuration().frames(m_document->fps());
+                if (end > max) {
+                    item->setFadeOut(max);
+                    start = item->fadeOut();
+                }
+                start = end - start;
+                EffectsList::setParameter(oldeffect, "in", QString::number(start));
+                EffectsList::setParameter(oldeffect, "out", QString::number(end));
+                if (!m_document->renderer()->mltEditEffect(m_document->tracksCount() - item->track(), item->startPos(), item->getEffectArgs(oldeffect)))
+                    emit displayMessage(i18n("Problem editing effect"), ErrorMessage);
+                // if fade effect is displayed, update the effect edit widget with new clip duration
+                if (item->isSelected() && effectPos == item->selectedEffectIndex()) emit clipItemSelected(item, effectPos);
+            }
+            effectPos = item->hasEffect("brightness", "fade_to_black");
+            if (effectPos != -1) {
+                QDomElement oldeffect = item->effectAt(effectPos);
+                int end = (item->duration() - item->cropStart()).frames(m_document->fps());
+                int max = item->cropDuration().frames(m_document->fps());
+                if (end > max) {
+                    item->setFadeOut(max);
+                    start = item->fadeOut();
+                }
+                start = end - start;
+                EffectsList::setParameter(oldeffect, "in", QString::number(start));
+                EffectsList::setParameter(oldeffect, "out", QString::number(end));
+                if (!m_document->renderer()->mltEditEffect(m_document->tracksCount() - item->track(), item->startPos(), item->getEffectArgs(oldeffect)))
+                    emit displayMessage(i18n("Problem editing effect"), ErrorMessage);
+                // if fade effect is displayed, update the effect edit widget with new clip duration
+                if (item->isSelected() && effectPos == item->selectedEffectIndex()) emit clipItemSelected(item, effectPos);
             }
-            start = end - start;
-            EffectsList::setParameter(oldeffect, "in", QString::number(start));
-            EffectsList::setParameter(oldeffect, "out", QString::number(end));
-            if (!m_document->renderer()->mltEditEffect(m_document->tracksCount() - item->track(), item->startPos(), item->getEffectArgs(oldeffect)))
-                emit displayMessage(i18n("Problem editing effect"), ErrorMessage);
-            // if fade 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) {
+double CustomTrackView::getSnapPointForPos(double pos)
+{
     return m_scene->getSnapPointForPos(pos, KdenliveSettings::snaptopoints());
 }
 
-void CustomTrackView::updateSnapPoints(AbstractClipItem *selected) {
+void CustomTrackView::updateSnapPoints(AbstractClipItem *selected, QList <GenTime> offsetList, bool skipSelectedItems)
+{
     QList <GenTime> snaps;
-    GenTime offset;
-    if (selected) offset = selected->duration();
+    if (selected && offsetList.isEmpty()) offsetList.append(selected->duration());
     QList<QGraphicsItem *> itemList = items();
     for (int i = 0; i < itemList.count(); i++) {
-        if (itemList.at(i)->type() == AVWIDGET && itemList.at(i) != selected) {
+        if (itemList.at(i) == selected) continue;
+        if (skipSelectedItems && itemList.at(i)->isSelected()) continue;
+        if (itemList.at(i)->type() == AVWIDGET) {
             ClipItem *item = static_cast <ClipItem *>(itemList.at(i));
             GenTime start = item->startPos();
             GenTime end = item->endPos();
             snaps.append(start);
             snaps.append(end);
+            if (!offsetList.isEmpty()) {
+                for (int j = 0; j < offsetList.size(); j++) {
+                    if (start > offsetList.at(j)) snaps.append(start - offsetList.at(j));
+                    if (end > offsetList.at(j)) snaps.append(end - offsetList.at(j));
+                }
+            }
+            // Add clip markers
             QList < GenTime > markers = item->snapMarkers();
-            for (int i = 0; i < markers.size(); ++i) {
-                GenTime t = markers.at(i);
+            for (int j = 0; j < markers.size(); ++j) {
+                GenTime t = markers.at(j);
                 snaps.append(t);
-                if (t > offset) snaps.append(t - offset);
-            }
-            if (offset != GenTime()) {
-                if (start > offset) snaps.append(start - offset);
-                if (end > offset) snaps.append(end - offset);
+                if (!offsetList.isEmpty()) {
+                    for (int k = 0; k < offsetList.size(); k++) {
+                        if (t > offsetList.at(k)) snaps.append(t - offsetList.at(k));
+                    }
+                }
             }
         } else if (itemList.at(i)->type() == TRANSITIONWIDGET) {
             Transition *transition = static_cast <Transition*>(itemList.at(i));
@@ -2546,9 +3356,11 @@ void CustomTrackView::updateSnapPoints(AbstractClipItem *selected) {
             GenTime end = transition->endPos();
             snaps.append(start);
             snaps.append(end);
-            if (offset != GenTime()) {
-                if (start > offset) snaps.append(start - offset);
-                if (end > offset) snaps.append(end - offset);
+            if (!offsetList.isEmpty()) {
+                for (int j = 0; j < offsetList.size(); j++) {
+                    if (start > offsetList.at(j)) snaps.append(start - offsetList.at(j));
+                    if (end > offsetList.at(j)) snaps.append(end - offsetList.at(j));
+                }
             }
         }
     }
@@ -2556,12 +3368,20 @@ void CustomTrackView::updateSnapPoints(AbstractClipItem *selected) {
     // add cursor position
     GenTime pos = GenTime(m_cursorPos, m_document->fps());
     snaps.append(pos);
-    if (offset != GenTime()) snaps.append(pos - offset);
+    if (!offsetList.isEmpty()) {
+        for (int j = 0; j < offsetList.size(); j++) {
+            snaps.append(pos - offsetList.at(j));
+        }
+    }
 
     // add guides
     for (int i = 0; i < m_guides.count(); i++) {
         snaps.append(m_guides.at(i)->position());
-        if (offset != GenTime()) snaps.append(m_guides.at(i)->position() - offset);
+        if (!offsetList.isEmpty()) {
+            for (int j = 0; j < offsetList.size(); j++) {
+                snaps.append(m_guides.at(i)->position() - offsetList.at(j));
+            }
+        }
     }
 
     qSort(snaps);
@@ -2570,21 +3390,24 @@ void CustomTrackView::updateSnapPoints(AbstractClipItem *selected) {
     //    kDebug() << "SNAP POINT: " << m_snapPoints.at(i).frames(25);
 }
 
-void CustomTrackView::slotSeekToPreviousSnap() {
+void CustomTrackView::slotSeekToPreviousSnap()
+{
     updateSnapPoints(NULL);
     GenTime res = m_scene->previousSnapPoint(GenTime(m_cursorPos, m_document->fps()));
     setCursorPos((int) res.frames(m_document->fps()));
     checkScrolling();
 }
 
-void CustomTrackView::slotSeekToNextSnap() {
+void CustomTrackView::slotSeekToNextSnap()
+{
     updateSnapPoints(NULL);
     GenTime res = m_scene->nextSnapPoint(GenTime(m_cursorPos, m_document->fps()));
     setCursorPos((int) res.frames(m_document->fps()));
     checkScrolling();
 }
 
-void CustomTrackView::clipStart() {
+void CustomTrackView::clipStart()
+{
     ClipItem *item = getMainActiveClip();
     if (item != NULL) {
         setCursorPos((int) item->startPos().frames(m_document->fps()));
@@ -2592,7 +3415,8 @@ void CustomTrackView::clipStart() {
     }
 }
 
-void CustomTrackView::clipEnd() {
+void CustomTrackView::clipEnd()
+{
     ClipItem *item = getMainActiveClip();
     if (item != NULL) {
         setCursorPos((int) item->endPos().frames(m_document->fps()) - 1);
@@ -2600,18 +3424,21 @@ void CustomTrackView::clipEnd() {
     }
 }
 
-void CustomTrackView::slotAddClipMarker(const QString &id, GenTime t, QString c) {
+void CustomTrackView::slotAddClipMarker(const QString &id, GenTime t, QString c)
+{
     QString oldcomment = m_document->clipManager()->getClipById(id)->markerComment(t);
-    AddMarkerCommand *command = new AddMarkerCommand(this, oldcomment, c, id, t, true);
+    AddMarkerCommand *command = new AddMarkerCommand(this, oldcomment, c, id, t);
     m_commandStack->push(command);
 }
 
-void CustomTrackView::slotDeleteClipMarker(const QString &comment, const QString &id, const GenTime &position) {
-    AddMarkerCommand *command = new AddMarkerCommand(this, comment, QString(), id, position, true);
+void CustomTrackView::slotDeleteClipMarker(const QString &comment, const QString &id, const GenTime &position)
+{
+    AddMarkerCommand *command = new AddMarkerCommand(this, comment, QString(), id, position);
     m_commandStack->push(command);
 }
 
-void CustomTrackView::slotDeleteAllClipMarkers(const QString &id) {
+void CustomTrackView::slotDeleteAllClipMarkers(const QString &id)
+{
     DocClipBase *base = m_document->clipManager()->getClipById(id);
     QList <CommentedTime> markers = base->commentedSnapMarkers();
 
@@ -2623,12 +3450,13 @@ void CustomTrackView::slotDeleteAllClipMarkers(const QString &id) {
     deleteMarkers->setText("Delete clip markers");
 
     for (int i = 0; i < markers.size(); i++) {
-        new AddMarkerCommand(this, markers.at(i).comment(), QString(), id, markers.at(i).time(), true, deleteMarkers);
+        new AddMarkerCommand(this, markers.at(i).comment(), QString(), id, markers.at(i).time(), deleteMarkers);
     }
     m_commandStack->push(deleteMarkers);
 }
 
-void CustomTrackView::addMarker(const QString &id, const GenTime &pos, const QString comment) {
+void CustomTrackView::addMarker(const QString &id, const GenTime &pos, const QString comment)
+{
     DocClipBase *base = m_document->clipManager()->getClipById(id);
     if (!comment.isEmpty()) base->addSnapMarker(pos, comment);
     else base->deleteSnapMarker(pos);
@@ -2636,11 +3464,13 @@ void CustomTrackView::addMarker(const QString &id, const GenTime &pos, const QSt
     viewport()->update();
 }
 
-bool sortGuidesList(const Guide *g1 , const Guide *g2) {
+bool sortGuidesList(const Guide *g1 , const Guide *g2)
+{
     return (*g1).position() < (*g2).position();
 }
 
-void CustomTrackView::editGuide(const GenTime oldPos, const GenTime pos, const QString &comment) {
+void CustomTrackView::editGuide(const GenTime oldPos, const GenTime pos, const QString &comment)
+{
     if (oldPos > GenTime() && pos > GenTime()) {
         // move guide
         for (int i = 0; i < m_guides.count(); i++) {
@@ -2656,8 +3486,7 @@ void CustomTrackView::editGuide(const GenTime oldPos, const GenTime pos, const Q
         bool found = false;
         for (int i = 0; i < m_guides.count(); i++) {
             if (m_guides.at(i)->position() == oldPos) {
-                Guide *item = m_guides.takeAt(i);
-                delete item;
+                delete m_guides.takeAt(i);
                 found = true;
                 break;
             }
@@ -2668,7 +3497,8 @@ void CustomTrackView::editGuide(const GenTime oldPos, const GenTime pos, const Q
     m_document->syncGuides(m_guides);
 }
 
-bool CustomTrackView::addGuide(const GenTime pos, const QString &comment) {
+bool CustomTrackView::addGuide(const GenTime pos, const QString &comment)
+{
     for (int i = 0; i < m_guides.count(); i++) {
         if (m_guides.at(i)->position() == pos) {
             emit displayMessage(i18n("A guide already exists at position %1", m_document->timecode().getTimecodeFromFrames(pos.frames(m_document->fps()))), ErrorMessage);
@@ -2683,7 +3513,8 @@ bool CustomTrackView::addGuide(const GenTime pos, const QString &comment) {
     return true;
 }
 
-void CustomTrackView::slotAddGuide() {
+void CustomTrackView::slotAddGuide()
+{
     CommentedTime marker(GenTime(m_cursorPos, m_document->fps()), i18n("Guide"));
     MarkerDialog d(NULL, marker, m_document->timecode(), i18n("Add Guide"), this);
     if (d.exec() != QDialog::Accepted) return;
@@ -2693,7 +3524,8 @@ void CustomTrackView::slotAddGuide() {
     }
 }
 
-void CustomTrackView::slotEditGuide() {
+void CustomTrackView::slotEditGuide()
+{
     GenTime pos = GenTime(m_cursorPos, m_document->fps());
     bool found = false;
     for (int i = 0; i < m_guides.count(); i++) {
@@ -2706,7 +3538,8 @@ void CustomTrackView::slotEditGuide() {
     if (!found) emit displayMessage(i18n("No guide at cursor time"), ErrorMessage);
 }
 
-void CustomTrackView::slotEditGuide(CommentedTime guide) {
+void CustomTrackView::slotEditGuide(CommentedTime guide)
+{
     MarkerDialog d(NULL, guide, m_document->timecode(), i18n("Edit Guide"), this);
     if (d.exec() == QDialog::Accepted) {
         EditGuideCommand *command = new EditGuideCommand(this, guide.time(), guide.comment(), d.newMarker().time(), d.newMarker().comment(), true);
@@ -2715,7 +3548,8 @@ void CustomTrackView::slotEditGuide(CommentedTime guide) {
 }
 
 
-void CustomTrackView::slotDeleteGuide() {
+void CustomTrackView::slotDeleteGuide()
+{
     GenTime pos = GenTime(m_cursorPos, m_document->fps());
     bool found = false;
     for (int i = 0; i < m_guides.count(); i++) {
@@ -2729,59 +3563,47 @@ void CustomTrackView::slotDeleteGuide() {
     if (!found) emit displayMessage(i18n("No guide at cursor time"), ErrorMessage);
 }
 
-void CustomTrackView::slotDeleteAllGuides() {
+void CustomTrackView::slotDeleteAllGuides()
+{
     QUndoCommand *deleteAll = new QUndoCommand();
     deleteAll->setText("Delete all guides");
     for (int i = 0; i < m_guides.count(); i++) {
-        EditGuideCommand *command = new EditGuideCommand(this, m_guides.at(i)->position(), m_guides.at(i)->label(), GenTime(), QString(), true, deleteAll);
+        new EditGuideCommand(this, m_guides.at(i)->position(), m_guides.at(i)->label(), GenTime(), QString(), true, deleteAll);
     }
     m_commandStack->push(deleteAll);
 }
 
-void CustomTrackView::setTool(PROJECTTOOL tool) {
+void CustomTrackView::setTool(PROJECTTOOL tool)
+{
     m_tool = tool;
 }
 
-void CustomTrackView::setScale(double scaleFactor) {
+void CustomTrackView::setScale(double scaleFactor)
+{
     QMatrix matrix;
     matrix = matrix.scale(scaleFactor, 1);
     m_scene->setScale(scaleFactor);
     //scale(scaleFactor, 1);
     m_animationTimer->stop();
-    if (m_visualTip) {
-        delete m_visualTip;
-        m_visualTip = NULL;
-    }
-    if (m_animation) {
-        delete m_animation;
-        m_animation = NULL;
-    }
-    /*double pos = cursorPos() / m_scale;
-    m_scale = scaleFactor;
-    m_scene->setScale(m_scale);
-    int vert = verticalScrollBar()->value();
-    kDebug() << " HHHHHHHH  SCALING: " << m_scale;
-    QList<QGraphicsItem *> itemList = items();
-    for (int i = 0; i < itemList.count(); i++) {
-        if (itemList.at(i)->type() == AVWIDGET || itemList.at(i)->type() == TRANSITIONWIDGET) {
-            AbstractClipItem *clip = (AbstractClipItem *)itemList.at(i);
-            clip->setRect(0, 0, (qreal) clip->duration().frames(m_document->fps()) * m_scale - .5, clip->rect().height());
-            clip->setPos((qreal) clip->startPos().frames(m_document->fps()) * m_scale, clip->pos().y());
-        }
-    }
+    delete m_visualTip;
+    m_visualTip = NULL;
+    delete m_animation;
+    m_animation = NULL;
 
-    for (int i = 0; i < m_guides.count(); i++) {
-        m_guides.at(i)->updatePosition(m_scale);
+    //setSceneRect(0, 0, m_projectDuration + 100 * scaleFactor, sceneRect().height());
+    setMatrix(matrix);
+    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());
     }
 
-    setSceneRect(0, 0, (m_projectDuration + 100) * m_scale, sceneRect().height());
-    updateCursorPos();*/
-    setMatrix(matrix);
     centerOn(QPointF(cursorPos(), m_tracksHeight));
     //verticalScrollBar()->setValue(vert);*/
 }
 
-void CustomTrackView::slotRefreshGuides() {
+void CustomTrackView::slotRefreshGuides()
+{
     if (KdenliveSettings::showmarkers()) {
         kDebug() << "// refresh GUIDES";
         for (int i = 0; i < m_guides.count(); i++) {
@@ -2790,7 +3612,8 @@ void CustomTrackView::slotRefreshGuides() {
     }
 }
 
-void CustomTrackView::drawBackground(QPainter * painter, const QRectF & rect) {
+void CustomTrackView::drawBackground(QPainter * painter, const QRectF & rect)
+{
     QColor base = palette().button().color();
     QRectF r = rect;
     r.setWidth(r.width() + 1);
@@ -2798,9 +3621,8 @@ void CustomTrackView::drawBackground(QPainter * painter, const QRectF & rect) {
     painter->drawLine(r.left(), 0, r.right(), 0);
     uint max = m_document->tracksCount();
     for (uint i = 0; i < max;i++) {
-        /*if (max - i - 1 == m_selectedTrack) painter->fillRect(r.left(), m_tracksHeight * i + 1, r.right() - r.left() + 1, m_tracksHeight - 1, QBrush(QColor(211, 205, 147)));
-               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(QColor(240, 240, 255)));
+        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(QColor(250, 250, 100)));
+        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(QColor(240, 240, 255)));
         painter->drawLine(r.left(), m_tracksHeight * (i + 1), r.right(), m_tracksHeight * (i + 1));
     }
     int lowerLimit = m_tracksHeight * m_document->tracksCount() + 1;
@@ -2808,7 +3630,8 @@ void CustomTrackView::drawBackground(QPainter * painter, const QRectF & rect) {
         painter->fillRect(QRectF(r.left(), lowerLimit, r.width(), height() - lowerLimit), QBrush(base));
 }
 
-bool CustomTrackView::findString(const QString &text) {
+bool CustomTrackView::findString(const QString &text)
+{
     QString marker;
     for (int i = 0; i < m_searchPoints.size(); ++i) {
         marker = m_searchPoints.at(i).comment();
@@ -2824,7 +3647,8 @@ bool CustomTrackView::findString(const QString &text) {
     return false;
 }
 
-bool CustomTrackView::findNextString(const QString &text) {
+bool CustomTrackView::findNextString(const QString &text)
+{
     QString marker;
     for (int i = m_findIndex + 1; i < m_searchPoints.size(); ++i) {
         marker = m_searchPoints.at(i).comment();
@@ -2841,7 +3665,8 @@ bool CustomTrackView::findNextString(const QString &text) {
     return false;
 }
 
-void CustomTrackView::initSearchStrings() {
+void CustomTrackView::initSearchStrings()
+{
     m_searchPoints.clear();
     QList<QGraphicsItem *> itemList = items();
     for (int i = 0; i < itemList.count(); i++) {
@@ -2865,15 +3690,16 @@ void CustomTrackView::initSearchStrings() {
     qSort(m_searchPoints);
 }
 
-void CustomTrackView::clearSearchStrings() {
+void CustomTrackView::clearSearchStrings()
+{
     m_searchPoints.clear();
     m_findIndex = 0;
 }
 
-void CustomTrackView::copyClip() {
-    while (m_copiedItems.count() > 0) {
-        delete m_copiedItems.takeFirst();
-    }
+void CustomTrackView::copyClip()
+{
+    qDeleteAll(m_copiedItems);
+    m_copiedItems.clear();
     QList<QGraphicsItem *> itemList = scene()->selectedItems();
     if (itemList.count() == 0) {
         emit displayMessage(i18n("Select a clip before copying"), ErrorMessage);
@@ -2890,7 +3716,8 @@ void CustomTrackView::copyClip() {
     }
 }
 
-bool CustomTrackView::canBePastedTo(ItemInfo info, int type) const {
+bool CustomTrackView::canBePastedTo(ItemInfo info, int type) const
+{
     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++) {
@@ -2899,7 +3726,8 @@ bool CustomTrackView::canBePastedTo(ItemInfo info, int type) const {
     return true;
 }
 
-bool CustomTrackView::canBePasted(QList<AbstractClipItem *> items, GenTime offset, int trackOffset) const {
+bool CustomTrackView::canBePasted(QList<AbstractClipItem *> items, GenTime offset, int trackOffset) const
+{
     for (int i = 0; i < items.count(); i++) {
         ItemInfo info = items.at(i)->info();
         info.startPos += offset;
@@ -2910,7 +3738,8 @@ bool CustomTrackView::canBePasted(QList<AbstractClipItem *> items, GenTime offse
     return true;
 }
 
-bool CustomTrackView::canBeMoved(QList<AbstractClipItem *> items, GenTime offset, int trackOffset) const {
+bool CustomTrackView::canBeMoved(QList<AbstractClipItem *> items, GenTime offset, int trackOffset) const
+{
     QPainterPath movePath;
     movePath.moveTo(0, 0);
 
@@ -2936,14 +3765,20 @@ bool CustomTrackView::canBeMoved(QList<AbstractClipItem *> items, GenTime offset
     return true;
 }
 
-void CustomTrackView::pasteClip() {
+void CustomTrackView::pasteClip()
+{
     if (m_copiedItems.count() == 0) {
         emit displayMessage(i18n("No clip copied"), ErrorMessage);
         return;
     }
     QPoint position;
-    if (m_menuPosition.isNull()) position = mapFromGlobal(QCursor::pos());
-    else position = m_menuPosition;
+    if (m_menuPosition.isNull()) {
+        position = mapFromGlobal(QCursor::pos());
+        if (!underMouse() || 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();
@@ -2977,14 +3812,17 @@ void CustomTrackView::pasteClip() {
             info.endPos = tr->endPos() + offset;
             info.track = tr->track() + trackOffset;
             if (canBePastedTo(info, TRANSITIONWIDGET)) {
-                new AddTransitionCommand(this, info, tr->transitionEndTrack() + trackOffset, tr->toXML(), false, true, pasteClips);
+                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 emit displayMessage(i18n("Cannot paste transition to selected place"), ErrorMessage);
         }
     }
     m_commandStack->push(pasteClips);
 }
 
-void CustomTrackView::pasteClipEffects() {
+void CustomTrackView::pasteClipEffects()
+{
     if (m_copiedItems.count() != 1 || m_copiedItems.at(0)->type() != AVWIDGET) {
         emit displayMessage(i18n("You must copy exactly one clip before pasting effects"), ErrorMessage);
         return;
@@ -3008,7 +3846,8 @@ void CustomTrackView::pasteClipEffects() {
 }
 
 
-ClipItem *CustomTrackView::getClipUnderCursor() const {
+ClipItem *CustomTrackView::getClipUnderCursor() const
+{
     QRectF rect((double) m_cursorPos, 0.0, 1.0, (double)(m_tracksHeight * m_document->tracksCount()));
     QList<QGraphicsItem *> collisions = scene()->items(rect, Qt::IntersectsItemBoundingRect);
     for (int i = 0; i < collisions.count(); i++) {
@@ -3019,7 +3858,8 @@ ClipItem *CustomTrackView::getClipUnderCursor() const {
     return NULL;
 }
 
-ClipItem *CustomTrackView::getMainActiveClip() const {
+ClipItem *CustomTrackView::getMainActiveClip() const
+{
     QList<QGraphicsItem *> clips = scene()->selectedItems();
     if (clips.isEmpty()) {
         return getClipUnderCursor();
@@ -3035,7 +3875,8 @@ ClipItem *CustomTrackView::getMainActiveClip() const {
     return NULL;
 }
 
-ClipItem *CustomTrackView::getActiveClipUnderCursor(bool allowOutsideCursor) const {
+ClipItem *CustomTrackView::getActiveClipUnderCursor(bool allowOutsideCursor) const
+{
     QList<QGraphicsItem *> clips = scene()->selectedItems();
     if (clips.isEmpty()) {
         return getClipUnderCursor();
@@ -3048,22 +3889,25 @@ ClipItem *CustomTrackView::getActiveClipUnderCursor(bool allowOutsideCursor) con
         }
         if (clips.count() == 1 && allowOutsideCursor) return static_cast < ClipItem *>(clips.at(0));
         for (int i = 0; i < clips.count(); ++i) {
-            if (clips.at(i)->type() == AVWIDGET)
+            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) return item;
+                if (item->startPos().frames(m_document->fps()) <= m_cursorPos && item->endPos().frames(m_document->fps()) >= m_cursorPos)
+                    return item;
+            }
         }
     }
     return NULL;
 }
 
-void CustomTrackView::setInPoint() {
+void CustomTrackView::setInPoint()
+{
     ClipItem *clip = getActiveClipUnderCursor(true);
     if (clip == NULL) {
         emit displayMessage(i18n("You must select one clip for this action"), ErrorMessage);
         return;
     }
     ItemInfo startInfo = clip->info();
-    ItemInfo endInfo = clip->info();
+    ItemInfo endInfo = startInfo;
     endInfo.startPos = GenTime(m_cursorPos, m_document->fps());
     if (endInfo.startPos >= startInfo.endPos) {
         // Check for invalid resize
@@ -3080,7 +3924,8 @@ void CustomTrackView::setInPoint() {
     m_commandStack->push(command);
 }
 
-void CustomTrackView::setOutPoint() {
+void CustomTrackView::setOutPoint()
+{
     ClipItem *clip = getActiveClipUnderCursor(true);
     if (clip == NULL) {
         emit displayMessage(i18n("You must select one clip for this action"), ErrorMessage);
@@ -3107,7 +3952,8 @@ void CustomTrackView::setOutPoint() {
     m_commandStack->push(command);
 }
 
-void CustomTrackView::slotUpdateAllThumbs() {
+void CustomTrackView::slotUpdateAllThumbs()
+{
     QList<QGraphicsItem *> itemList = items();
     //if (itemList.isEmpty()) return;
     ClipItem *item;
@@ -3139,14 +3985,15 @@ void CustomTrackView::slotUpdateAllThumbs() {
                     }
                 }
             }
-            item->refreshClip();
+            item->refreshClip(false);
             qApp->processEvents();
         }
     }
     viewport()->update();
 }
 
-void CustomTrackView::saveThumbnails() {
+void CustomTrackView::saveThumbnails()
+{
     QList<QGraphicsItem *> itemList = items();
     ClipItem *item;
     QString thumbBase = m_document->projectFolder().path() + "/thumbs/";
@@ -3181,7 +4028,8 @@ void CustomTrackView::saveThumbnails() {
 }
 
 
-void CustomTrackView::slotInsertTrack(int ix) {
+void CustomTrackView::slotInsertTrack(int ix)
+{
     kDebug() << "// INSERTING TRK: " << ix;
     QDialog d(parentWidget());
     Ui::AddTrack_UI view;
@@ -3200,30 +4048,34 @@ void CustomTrackView::slotInsertTrack(int ix) {
             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, true);
+        AddTrackCommand *addTrack = new AddTrackCommand(this, ix, info, true);
         m_commandStack->push(addTrack);
         m_document->setModified(true);
     }
 }
 
-void CustomTrackView::slotDeleteTrack(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) {
         TrackInfo info = m_document->trackInfoAt(m_document->tracksCount() - ix - 1);
         deleteTimelineTrack(ix, info);
         m_document->setModified(true);
-        /*AddTrackCommand* command = new AddTrackCommand(this, ix, info, false, true);
+        /*AddTrackCommand* command = new AddTrackCommand(this, ix, info, false);
         m_commandStack->push(command);*/
     }
 }
 
-void CustomTrackView::slotChangeTrack(int ix) {
+void CustomTrackView::slotChangeTrack(int ix)
+{
     QDialog d(parentWidget());
     Ui::AddTrack_UI view;
     view.setupUi(&d);
@@ -3235,13 +4087,15 @@ void CustomTrackView::slotChangeTrack(int ix) {
 
     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.isMute = false;
             info.isBlind = false;
         } else {
             info.type = AUDIOTRACK;
-            info.isMute = false;
             info.isBlind = true;
         }
         changeTimelineTrack(ix, info);
@@ -3250,7 +4104,8 @@ void CustomTrackView::slotChangeTrack(int ix) {
 }
 
 
-void CustomTrackView::deleteTimelineTrack(int ix, TrackInfo trackinfo) {
+void CustomTrackView::deleteTimelineTrack(int ix, TrackInfo trackinfo)
+{
     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);
@@ -3274,17 +4129,19 @@ void CustomTrackView::deleteTimelineTrack(int ix, TrackInfo trackinfo) {
         }
     }
 
-    new AddTrackCommand(this, ix, trackinfo, false, true, deleteTrack);
+    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);
-    ChangeTrackCommand *changeTrack = new ChangeTrackCommand(this, ix, oldinfo, trackinfo, true);
+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() {
+void CustomTrackView::autoTransition()
+{
     QList<QGraphicsItem *> itemList = scene()->selectedItems();
     if (itemList.count() != 1 || itemList.at(0)->type() != TRANSITIONWIDGET) {
         emit displayMessage(i18n("You must select one transition for this action"), ErrorMessage);
@@ -3297,7 +4154,8 @@ void CustomTrackView::autoTransition() {
 }
 
 
-QStringList CustomTrackView::getLadspaParams(QDomElement effect) const {
+QStringList CustomTrackView::getLadspaParams(QDomElement effect) const
+{
     QStringList result;
     QDomNodeList params = effect.elementsByTagName("parameter");
     for (int i = 0; i < params.count(); i++) {
@@ -3314,4 +4172,290 @@ QStringList CustomTrackView::getLadspaParams(QDomElement effect) const {
     return result;
 }
 
+void CustomTrackView::clipNameChanged(const QString id, const QString name)
+{
+    QList<QGraphicsItem *> list = scene()->items();
+    ClipItem *clip = NULL;
+    for (int i = 0; i < list.size(); ++i) {
+        if (list.at(i)->type() == AVWIDGET) {
+            clip = static_cast <ClipItem *>(list.at(i));
+            if (clip->clipProducer() == id) {
+                clip->setClipName(name);
+            }
+        }
+    }
+    viewport()->update();
+}
+
+void CustomTrackView::getClipAvailableSpace(AbstractClipItem *item, GenTime &minimum, GenTime &maximum)
+{
+    minimum = GenTime();
+    maximum = GenTime();
+    QList<QGraphicsItem *> selection;
+    selection = m_scene->items(0, item->track() * m_tracksHeight + m_tracksHeight / 2, sceneRect().width(), 2);
+    selection.removeAll(item);
+    for (int i = 0; i < selection.count(); i++) {
+        AbstractClipItem *clip = static_cast <AbstractClipItem *>(selection.at(i));
+        if (clip && clip->type() == AVWIDGET) {
+            if (clip->endPos() <= item->startPos() && clip->endPos() > minimum) minimum = clip->endPos();
+            if (clip->startPos() > item->startPos() && (clip->startPos() < maximum || maximum == GenTime())) maximum = clip->startPos();
+        }
+    }
+}
+
+void CustomTrackView::getTransitionAvailableSpace(AbstractClipItem *item, GenTime &minimum, GenTime &maximum)
+{
+    minimum = GenTime();
+    maximum = GenTime();
+    QList<QGraphicsItem *> selection;
+    selection = m_scene->items(0, (item->track() + 1) * m_tracksHeight, sceneRect().width(), 2);
+    selection.removeAll(item);
+    for (int i = 0; i < selection.count(); i++) {
+        AbstractClipItem *clip = static_cast <AbstractClipItem *>(selection.at(i));
+        if (clip && clip->type() == TRANSITIONWIDGET) {
+            if (clip->endPos() <= item->startPos() && clip->endPos() > minimum) minimum = clip->endPos();
+            if (clip->startPos() > item->startPos() && (clip->startPos() < maximum || maximum == GenTime())) maximum = clip->startPos();
+        }
+    }
+}
+
+
+void CustomTrackView::loadGroups(const QDomNodeList groups)
+{
+    for (int i = 0; i < groups.count(); i++) {
+        QDomNodeList children = groups.at(i).childNodes();
+        scene()->clearSelection();
+        for (int nodeindex = 0; nodeindex < children.count(); nodeindex++) {
+            QDomNode n = children.item(nodeindex);
+            QDomElement elem = n.toElement();
+            int pos = elem.attribute("position").toInt();
+            int track = elem.attribute("track").toInt();
+            if (elem.tagName() == "clipitem") {
+                ClipItem *clip = getClipItemAt(pos, track); //m_document->tracksCount() - transitiontrack);
+                if (clip) clip->setSelected(true);
+            } else {
+                Transition *clip = getTransitionItemAt(pos, track); //m_document->tracksCount() - transitiontrack);
+                if (clip) clip->setSelected(true);
+            }
+        }
+        groupSelectedItems(false, true);
+    }
+}
+
+void CustomTrackView::splitAudio()
+{
+    resetSelectionGroup();
+    QList<QGraphicsItem *> selection = scene()->selectedItems();
+    if (selection.isEmpty()) {
+        emit displayMessage(i18n("You must select one clip for this action"), ErrorMessage);
+        return;
+    }
+    QUndoCommand *splitCommand = new QUndoCommand();
+    splitCommand->setText(i18n("Split audio"));
+    for (int i = 0; i < selection.count(); i++) {
+        if (selection.at(i)->type() == AVWIDGET) {
+            ClipItem *clip = static_cast <ClipItem *>(selection.at(i));
+            if (clip->clipType() == AV || clip->clipType() == PLAYLIST) {
+                if (clip->parentItem()) {
+                    emit displayMessage(i18n("Cannot split audio of grouped clips"), ErrorMessage);
+                } else {
+                    new SplitAudioCommand(this, clip->track(), clip->startPos(), splitCommand);
+                }
+            }
+        }
+    }
+    m_commandStack->push(splitCommand);
+}
+
+void CustomTrackView::doSplitAudio(const GenTime &pos, int track, bool split)
+{
+    ClipItem *clip = getClipItemAt(pos, track);
+    if (clip == NULL) {
+        kDebug() << "// Cannot find clip to split!!!";
+        return;
+    }
+    if (split) {
+        int start = pos.frames(m_document->fps());
+        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) {
+                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->duration().frames(m_document->fps())) {
+                    kDebug() << "FOUND SPACE ON TRK: " << freetrack;
+                    break;
+                }
+            }
+        }
+        kDebug() << "GOT TRK: " << track;
+        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();
+            info.track = m_document->tracksCount() - freetrack;
+            addClip(clip->xml(), clip->clipProducer(), info, clip->effectList());
+            scene()->clearSelection();
+            clip->setSelected(true);
+            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));
+                audioClip->setSelected(true);
+                audioClip->setAudioOnly(true);
+                groupSelectedItems(false, true);
+            }
+        }
+    } else {
+        // unsplit clip: remove audio part and change video part to normal clip
+        if (clip->parentItem() == NULL || clip->parentItem()->type() != GROUPWIDGET) {
+            kDebug() << "//CANNOT FIND CLP GRP";
+            return;
+        }
+        AbstractGroupItem *grp = static_cast <AbstractGroupItem *>(clip->parentItem());
+        QList<QGraphicsItem *> children = grp->childItems();
+        if (children.count() != 2) {
+            kDebug() << "//SOMETHING IS WRONG WITH CLP GRP";
+            return;
+        }
+        for (int i = 0; i < children.count(); i++) {
+            if (children.at(i) != clip) {
+                ClipItem *clp = static_cast <ClipItem *>(children.at(i));
+                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));
+                break;
+            }
+        }
+        m_document->clipManager()->removeGroup(grp);
+        scene()->destroyItemGroup(grp);
+    }
+}
+
+void CustomTrackView::setVideoOnly()
+{
+    resetSelectionGroup();
+    QList<QGraphicsItem *> selection = scene()->selectedItems();
+    if (selection.isEmpty()) {
+        emit displayMessage(i18n("You must select one clip for this action"), ErrorMessage);
+        return;
+    }
+    QUndoCommand *videoCommand = new QUndoCommand();
+    videoCommand->setText(i18n("Video only"));
+    for (int i = 0; i < selection.count(); i++) {
+        if (selection.at(i)->type() == AVWIDGET) {
+            ClipItem *clip = static_cast <ClipItem *>(selection.at(i));
+            if (clip->clipType() == AV || clip->clipType() == PLAYLIST) {
+                if (clip->parentItem()) {
+                    emit displayMessage(i18n("Cannot change grouped clips"), ErrorMessage);
+                } else {
+                    new ChangeClipTypeCommand(this, clip->track(), clip->startPos(), true, false, clip->isVideoOnly(), clip->isAudioOnly(), videoCommand);
+                }
+            }
+        }
+    }
+    m_commandStack->push(videoCommand);
+}
+
+void CustomTrackView::setAudioOnly()
+{
+    resetSelectionGroup();
+    QList<QGraphicsItem *> selection = scene()->selectedItems();
+    if (selection.isEmpty()) {
+        emit displayMessage(i18n("You must select one clip for this action"), ErrorMessage);
+        return;
+    }
+    QUndoCommand *videoCommand = new QUndoCommand();
+    videoCommand->setText(i18n("Audio only"));
+    for (int i = 0; i < selection.count(); i++) {
+        if (selection.at(i)->type() == AVWIDGET) {
+            ClipItem *clip = static_cast <ClipItem *>(selection.at(i));
+            if (clip->clipType() == AV || clip->clipType() == PLAYLIST) {
+                if (clip->parentItem()) {
+                    emit displayMessage(i18n("Cannot change grouped clips"), ErrorMessage);
+                } else {
+                    new ChangeClipTypeCommand(this, clip->track(), clip->startPos(), false, true, clip->isVideoOnly(), clip->isAudioOnly(), videoCommand);
+                }
+            }
+        }
+    }
+    m_commandStack->push(videoCommand);
+}
+
+void CustomTrackView::setAudioAndVideo()
+{
+    resetSelectionGroup();
+    QList<QGraphicsItem *> selection = scene()->selectedItems();
+    if (selection.isEmpty()) {
+        emit displayMessage(i18n("You must select one clip for this action"), ErrorMessage);
+        return;
+    }
+    QUndoCommand *videoCommand = new QUndoCommand();
+    videoCommand->setText(i18n("Audio and Video"));
+    for (int i = 0; i < selection.count(); i++) {
+        if (selection.at(i)->type() == AVWIDGET) {
+            ClipItem *clip = static_cast <ClipItem *>(selection.at(i));
+            if (clip->clipType() == AV || clip->clipType() == PLAYLIST) {
+                if (clip->parentItem()) {
+                    emit displayMessage(i18n("Cannot change grouped clips"), ErrorMessage);
+                } else {
+                    new ChangeClipTypeCommand(this, clip->track(), clip->startPos(), false, false, clip->isVideoOnly(), clip->isAudioOnly(), videoCommand);
+                }
+            }
+        }
+    }
+    m_commandStack->push(videoCommand);
+}
+
+void CustomTrackView::doChangeClipType(const GenTime &pos, int track, bool videoOnly, bool audioOnly)
+{
+    ClipItem *clip = getClipItemAt(pos, track);
+    if (clip == NULL) {
+        kDebug() << "// Cannot find clip to split!!!";
+        return;
+    }
+    if (videoOnly) {
+        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());
+    } 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));
+    } 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));
+    }
+    clip->update();
+}
+
+void CustomTrackView::updateClipTypeActions(ClipItem *clip)
+{
+    if (clip == NULL || (clip->clipType() != AV && clip->clipType() != PLAYLIST)) {
+        m_clipTypeGroup->setEnabled(false);
+    } else {
+        m_clipTypeGroup->setEnabled(true);
+        QList <QAction *> actions = m_clipTypeGroup->actions();
+        QString lookup;
+        if (clip->isAudioOnly()) lookup = "clip_audio_only";
+        else if (clip->isVideoOnly()) lookup = "clip_video_only";
+        else  lookup = "clip_audio_and_video";
+        for (int i = 0; i < actions.count(); i++) {
+            if (actions.at(i)->data().toString() == lookup) {
+                actions.at(i)->setChecked(true);
+                break;
+            }
+        }
+    }
+}
+
+
 #include "customtrackview.moc"