]> git.sesse.net Git - kdenlive/blobdiff - src/customtrackview.cpp
cleanup & fix crash on project saving with Qt 4.5:
[kdenlive] / src / customtrackview.cpp
index 465733e986dcc848d147bbe38426ce537c4372b2..16a167fc7f55f4b582603c91c27c905493a82987 100644 (file)
 #include "insertspacecommand.h"
 #include "spacerdialog.h"
 #include "addtrackcommand.h"
+#include "changetrackcommand.h"
+#include "movegroupcommand.h"
 #include "ui_addtrack_ui.h"
+#include "initeffects.h"
+#include "locktrackcommand.h"
 
 //TODO:
 // disable animation if user asked it in KDE's global settings
@@ -75,7 +79,7 @@
 // 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) {
+        : 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), m_changeSpeedAction(NULL), m_pasteEffectsAction(NULL) {
     if (doc) m_commandStack = doc->commandStack();
     else m_commandStack == NULL;
     setMouseTracking(true);
@@ -89,10 +93,11 @@ CustomTrackView::CustomTrackView(KdenliveDoc *doc, CustomTrackScene* projectscen
     m_tipPen.setColor(border);
     m_tipPen.setWidth(3);
     setContentsMargins(0, 0, 0, 0);
-    if (projectscene) {
-        m_cursorLine = projectscene->addLine(0, 0, 0, m_tracksHeight);
-        m_cursorLine->setZValue(1000);
-    }
+    const int maxWidth = m_tracksHeight * m_document->tracksCount();
+    setSceneRect(0, 0, sceneRect().width(), maxWidth);
+    verticalScrollBar()->setMaximum(maxWidth);
+    m_cursorLine = projectscene->addLine(0, 0, 0, maxWidth);
+    m_cursorLine->setZValue(1000);
 
     KIcon razorIcon("edit-cut");
     m_razorCursor = QCursor(razorIcon.pixmap(22, 22));
@@ -117,16 +122,29 @@ void CustomTrackView::setDocumentModified() {
 void CustomTrackView::setContextMenu(QMenu *timeline, QMenu *clip, QMenu *transition) {
     m_timelineContextMenu = timeline;
     m_timelineContextClipMenu = clip;
+    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);
+    }
+
     m_timelineContextTransitionMenu = transition;
+    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() {
     m_autoScroll = KdenliveSettings::autoscroll();
 }
 
-QList <TrackInfo> CustomTrackView::tracksList() const {
+/*sQList <TrackInfo> CustomTrackView::tracksList() const {
     return m_scene->m_tracksList;
-}
+}*/
 
 void CustomTrackView::checkTrackHeight() {
     if (m_tracksHeight == KdenliveSettings::trackheight()) return;
@@ -135,6 +153,8 @@ void CustomTrackView::checkTrackHeight() {
     QList<QGraphicsItem *> itemList = items();
     ClipItem *item;
     Transition *transitionitem;
+    bool snap = KdenliveSettings::snaptopoints();
+    KdenliveSettings::setSnaptopoints(false);
     for (int i = 0; i < itemList.count(); i++) {
         if (itemList.at(i)->type() == AVWIDGET) {
             item = (ClipItem*) itemList.at(i);
@@ -147,16 +167,17 @@ void CustomTrackView::checkTrackHeight() {
             transitionitem->setPos((qreal) transitionitem->startPos().frames(m_document->fps()), (qreal) transitionitem->track() * m_tracksHeight + m_tracksHeight / 3 * 2);
         }
     }
-    m_cursorLine->setLine(m_cursorLine->line().x1(), 0, m_cursorLine->line().x1(), m_tracksHeight * m_scene->m_tracksList.count());
+    m_cursorLine->setLine(m_cursorLine->line().x1(), 0, m_cursorLine->line().x1(), m_tracksHeight * m_document->tracksCount());
 
     for (int i = 0; i < m_guides.count(); i++) {
         QLineF l = m_guides.at(i)->line();
-        l.setP2(QPointF(l.x2(), m_tracksHeight * m_scene->m_tracksList.count()));
+        l.setP2(QPointF(l.x2(), m_tracksHeight * m_document->tracksCount()));
         m_guides.at(i)->setLine(l);
     }
 
-    setSceneRect(0, 0, sceneRect().width(), m_tracksHeight * m_scene->m_tracksList.count());
-    verticalScrollBar()->setMaximum(m_tracksHeight * m_scene->m_tracksList.count());
+    setSceneRect(0, 0, sceneRect().width(), m_tracksHeight * m_document->tracksCount());
+//     verticalScrollBar()->setMaximum(m_tracksHeight * m_document->tracksCount());
+    KdenliveSettings::setSnaptopoints(snap);
     update();
 }
 
@@ -185,10 +206,10 @@ void CustomTrackView::wheelEvent(QWheelEvent * e) {
 }
 
 int CustomTrackView::getPreviousVideoTrack(int track) {
-    track = m_scene->m_tracksList.count() - track - 1;
+    track = m_document->tracksCount() - track - 1;
     track --;
     for (int i = track; i > -1; i--) {
-        if (m_scene->m_tracksList.at(i).type == VIDEOTRACK) return i + 1;
+        if (m_document->trackInfoAt(i).type == VIDEOTRACK) return i + 1;
     }
     return 0;
 }
@@ -227,7 +248,7 @@ void CustomTrackView::mouseMoveEvent(QMouseEvent * event) {
     int mappedXPos = (int)(mapToScene(event->pos()).x() + 0.5);
     emit mousePosition(mappedXPos);
     if (event->buttons() & Qt::MidButton) return;
-    if (event->modifiers() == Qt::ControlModifier || event->modifiers() == Qt::ShiftModifier) {
+    if ((event->modifiers() == Qt::ControlModifier && m_tool != SPACERTOOL) || event->modifiers() == Qt::ShiftModifier) {
         QGraphicsView::mouseMoveEvent(event);
         m_moveOpMode = NONE;
         return;
@@ -249,9 +270,11 @@ 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())));
@@ -281,7 +304,7 @@ void CustomTrackView::mouseMoveEvent(QMouseEvent * event) {
         } else if (m_operationMode == SPACER && move) {
             // spacer tool
             int mappedClick = (int)(mapToScene(m_clickEvent).x() + 0.5);
-            m_selectionGroup->setPos(mappedXPos + (m_spacerStart - mappedClick) , m_selectionGroup->pos().y());
+            m_selectionGroup->setPos(mappedXPos + (((int) m_selectionGroup->boundingRect().topLeft().x() + 0.5) - mappedClick) , m_selectionGroup->pos().y());
         }
     }
 
@@ -500,6 +523,7 @@ void CustomTrackView::mouseMoveEvent(QMouseEvent * event) {
 
 // virtual
 void CustomTrackView::mousePressEvent(QMouseEvent * event) {
+    kDebug() << "mousePressEvent STARTED";
     m_menuPosition = QPoint();
     m_blockRefresh = true;
     bool collision = false;
@@ -515,16 +539,18 @@ void CustomTrackView::mousePressEvent(QMouseEvent * event) {
     if (event->button() == Qt::MidButton) {
         m_document->renderer()->switchPlay();
         m_blockRefresh = false;
+        m_operationMode = NONE;
         return;
     }
 
     // check item under mouse
     QList<QGraphicsItem *> collisionList = items(event->pos());
 
-    if (event->modifiers() == Qt::ControlModifier && collisionList.count() == 0) {
+    if (event->modifiers() == Qt::ControlModifier && m_tool != SPACERTOOL && collisionList.count() == 0) {
         setDragMode(QGraphicsView::ScrollHandDrag);
         QGraphicsView::mousePressEvent(event);
         m_blockRefresh = false;
+        m_operationMode = NONE;
         return;
     }
 
@@ -532,6 +558,7 @@ void CustomTrackView::mousePressEvent(QMouseEvent * event) {
         setDragMode(QGraphicsView::RubberBandDrag);
         QGraphicsView::mousePressEvent(event);
         m_blockRefresh = false;
+        m_operationMode = RUBBERSELECTION;
         return;
     }
 
@@ -562,18 +589,24 @@ void CustomTrackView::mousePressEvent(QMouseEvent * event) {
         i++;
     }
 
+    if (m_dragItem && m_dragItem->type() == TRANSITIONWIDGET) {
+        // update transition menu action
+        m_autoTransition->setChecked(static_cast<Transition *>(m_dragItem)->isAutomatic());
+        m_autoTransition->setEnabled(true);
+    } else m_autoTransition->setEnabled(false);
+
     // context menu requested
     if (event->button() == Qt::RightButton) {
         if (m_dragItem) {
             if (!m_dragItem->isSelected()) {
+                resetSelectionGroup(false);
                 m_scene->clearSelection();
-                resetSelectionGroup();
                 m_dragItem->setSelected(true);
             }
         }
         m_operationMode = NONE;
         displayContextMenu(event->globalPos(), m_dragItem);
-        m_menuPosition = event->pos();
+        m_menuPosition = m_clickEvent;
         m_dragItem = NULL;
         event->accept();
         return;
@@ -587,30 +620,31 @@ void CustomTrackView::mousePressEvent(QMouseEvent * event) {
         event->accept();
         emit clipItemSelected(NULL);
         if (m_tool == SPACERTOOL) {
-            // Select all items on track after click position
-            int track = (int)(mapToScene(m_clickEvent).y() / m_tracksHeight);
-            QList<QGraphicsItem *> selection = items(event->pos().x(), track * m_tracksHeight + 1, sceneRect().width() - event->pos().x(), m_tracksHeight - 2);
-            m_selectionGroup = new AbstractGroupItem(m_document->fps());
-            scene()->addItem(m_selectionGroup);
-            m_spacerStart = -1;
-            int itemStart;
+            QList<QGraphicsItem *> selection;
+            if (event->modifiers() == Qt::ControlModifier) {
+                // Ctrl + click, select all items on track after click position
+                int track = (int)(mapToScene(m_clickEvent).y() / m_tracksHeight);
+                selection = items(m_clickEvent.x(), track * m_tracksHeight + m_tracksHeight / 2, mapFromScene(sceneRect().width(), 0).x() - m_clickEvent.x(), m_tracksHeight / 2 - 2);
+
+                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, 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();
+            }
+
+            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));
-                    AbstractClipItem *item = static_cast <AbstractClipItem *>(selection.at(i));
-                    itemStart = item->startPos().frames(m_document->fps());
-                    if (m_spacerStart == -1 || itemStart < m_spacerStart)
-                        m_spacerStart = itemStart;
+                    selection.at(i)->setSelected(true);
                 }
             }
-            QPointF top = m_selectionGroup->boundingRect().topLeft();
-            const int width = m_selectionGroup->boundingRect().width();
-            const int height = m_selectionGroup->boundingRect().height();
-            m_selectionGroup->setPos(top);
-            m_selectionGroup->translate(-top.x(), -top.y() + 1);
-            //kDebug()<<"// SPACER START GRP: "<<m_spacerStart;
+            groupSelectedItems(true);
             m_operationMode = SPACER;
         } else setCursorPos((int)(mapToScene(event->x(), 0).x()));
+        kDebug() << "END mousePress EVENT ";
         return;
     }
 
@@ -624,14 +658,16 @@ void CustomTrackView::mousePressEvent(QMouseEvent * event) {
         }
         AbstractClipItem *clip = static_cast <AbstractClipItem *>(m_dragItem);
         RazorClipCommand* command = new RazorClipCommand(this, clip->info(), GenTime((int)(mapToScene(event->pos()).x()), m_document->fps()), true);
+        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 (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())) {
@@ -643,57 +679,36 @@ void CustomTrackView::mousePressEvent(QMouseEvent * event) {
         resetSelectionGroup();
         if (event->modifiers() != Qt::ControlModifier) m_scene->clearSelection();
         m_dragItem->setSelected(!m_dragItem->isSelected());
-        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);
+        groupSelectedItems();
+        ClipItem *clip = static_cast <ClipItem *>(m_dragItem);
+        m_changeSpeedAction->setEnabled(clip->clipType() == AV || clip->clipType() == VIDEO);
+        m_pasteEffectsAction->setEnabled(m_copiedItems.count() == 1);
+    }
+
+    if (m_selectionGroup == NULL) updateSnapPoints(m_dragItem);
+    else {
+        QList <GenTime> offsetList;
+        QList<QGraphicsItem *> children = m_selectionGroup->childItems();
+        for (int i = 0; i < children.count(); i++) {
+            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);
                 }
             }
-        }
-        if (m_selectionGroup) {
-            QPointF top = m_selectionGroup->boundingRect().topLeft();
-            const int width = m_selectionGroup->boundingRect().width();
-            const int height = m_selectionGroup->boundingRect().height();
-            m_selectionGroup->setPos(top);
-            m_selectionGroup->translate(-top.x(), -top.y() + 1);
-            m_selectionGroupInfo.startPos = GenTime(m_selectionGroup->scenePos().x(), m_document->fps());
-            m_selectionGroupInfo.track = m_selectionGroup->track();
+            updateSnapPoints(NULL, cleandOffsetList, true);
         }
     }
 
     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) {
@@ -708,26 +723,59 @@ void CustomTrackView::mousePressEvent(QMouseEvent * event) {
         info.track = m_dragItem->track();
         int transitiontrack = getPreviousVideoTrack(info.track);
         ClipItem *transitionClip = NULL;
-        if (transitiontrack != 0) transitionClip = getClipItemAt((int) info.startPos.frames(m_document->fps()), m_scene->m_tracksList.count() - transitiontrack);
+        if (transitiontrack != 0) transitionClip = getClipItemAt((int) info.startPos.frames(m_document->fps()), m_document->tracksCount() - transitiontrack);
         if (transitionClip && transitionClip->endPos() < m_dragItem->endPos()) {
             info.endPos = transitionClip->endPos();
         } else info.endPos = info.startPos + GenTime(65, m_document->fps());
         if (info.endPos == info.startPos) info.endPos = info.startPos + GenTime(65, m_document->fps());
-        slotAddTransition((ClipItem *) m_dragItem, info, transitiontrack);
+        // 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) {
         ItemInfo info;
         info.endPos = GenTime(m_dragItem->endPos().frames(m_document->fps()), m_document->fps());
         info.track = m_dragItem->track();
         int transitiontrack = getPreviousVideoTrack(info.track);
         ClipItem *transitionClip = NULL;
-        if (transitiontrack != 0) transitionClip = getClipItemAt((int) info.endPos.frames(m_document->fps()), m_scene->m_tracksList.count() - transitiontrack);
+        if (transitiontrack != 0) transitionClip = getClipItemAt((int) info.endPos.frames(m_document->fps()), m_document->tracksCount() - transitiontrack);
         if (transitionClip && transitionClip->startPos() > m_dragItem->startPos()) {
             info.startPos = transitionClip->startPos();
         } else info.startPos = info.endPos - GenTime(65, m_document->fps());
         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);
     }
 
     m_blockRefresh = false;
@@ -735,17 +783,62 @@ void CustomTrackView::mousePressEvent(QMouseEvent * event) {
     //QGraphicsView::mousePressEvent(event);
 }
 
-void CustomTrackView::resetSelectionGroup() {
+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(true);
+            if (!static_cast <AbstractClipItem *>(children.at(i))->isItemLocked()) {
+                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(bool force) {
+    if (m_selectionGroup) {
+        kDebug() << "///// ERROR, TRYING TO OVERRIDE EXISTING GROUP";
+        return;
     }
+    QList<QGraphicsItem *> selection = m_scene->selectedItems();
+    QGraphicsItemGroup *group = m_scene->createItemGroup(selection);
+    scene()->addItem(group);
+    QPointF top = group->sceneBoundingRect().topLeft();
+    m_scene->destroyItemGroup(group);
+    if (force || selection.count() > 1) {
+        bool snap = KdenliveSettings::snaptopoints();
+        KdenliveSettings::setSnaptopoints(false);
+        m_selectionGroup = new AbstractGroupItem(m_document->fps());
+        m_selectionGroup->translate(-top.x(), -top.y() + 1);
+        m_selectionGroup->setPos(top.x(), top.y() - 1);
+        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);
+            }
+        }
+        KdenliveSettings::setSnaptopoints(snap);
+
+        if (m_selectionGroup) {
+            /*bool snap = KdenliveSettings::snaptopoints();
+            KdenliveSettings::setSnaptopoints(false);
+            QPointF top = m_selectionGroup->sceneBoundingRect().topLeft();
+            // kDebug()<<"SEL GRP TOP: "<<top;
+            // Fix group item position
+            m_selectionGroup->translate(-top.x(), -top.y());
+            m_selectionGroup->setPos(top);*/
+            m_selectionGroupInfo.startPos = GenTime(m_selectionGroup->scenePos().x(), m_document->fps());
+            m_selectionGroupInfo.track = m_selectionGroup->track();
+            //KdenliveSettings::setSnaptopoints(snap);
+        }
+    } else resetSelectionGroup();
 }
 
 void CustomTrackView::mouseDoubleClickEvent(QMouseEvent *event) {
@@ -768,7 +861,7 @@ void CustomTrackView::mouseDoubleClickEvent(QMouseEvent *event) {
                 QString next = item->keyframes(item->selectedEffectIndex());
                 EditKeyFrameCommand *command = new EditKeyFrameCommand(this, item->track(), item->startPos(), item->selectedEffectIndex(), previous, next, false);
                 m_commandStack->push(command);
-                updateEffect(m_scene->m_tracksList.count() - item->track(), item->startPos(), item->selectedEffect(), item->selectedEffectIndex());
+                updateEffect(m_document->tracksCount() - item->track(), item->startPos(), item->selectedEffect(), item->selectedEffectIndex());
             }
 
         } else  {
@@ -781,42 +874,50 @@ void CustomTrackView::mouseDoubleClickEvent(QMouseEvent *event) {
             QString next = item->keyframes(item->selectedEffectIndex());
             EditKeyFrameCommand *command = new EditKeyFrameCommand(this, m_dragItem->track(), m_dragItem->startPos(), item->selectedEffectIndex(), previous, next, false);
             m_commandStack->push(command);
-            updateEffect(m_scene->m_tracksList.count() - item->track(), item->startPos(), item->selectedEffect(), item->selectedEffectIndex());
+            updateEffect(m_document->tracksCount() - item->track(), item->startPos(), item->selectedEffect(), item->selectedEffectIndex());
         }
     } 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 {
@@ -833,15 +934,19 @@ void CustomTrackView::editKeyFrame(const GenTime pos, const int track, const int
     ClipItem *clip = getClipItemAt((int)pos.frames(m_document->fps()), track);
     if (clip) {
         clip->setKeyframes(index, keyframes);
-        updateEffect(m_scene->m_tracksList.count() - clip->track(), clip->startPos(), clip->effectAt(index), index);
+        updateEffect(m_document->tracksCount() - clip->track(), clip->startPos(), clip->effectAt(index), index);
     } else emit displayMessage(i18n("Cannot find clip with keyframe"), ErrorMessage);
 }
 
 
 void CustomTrackView::displayContextMenu(QPoint pos, AbstractClipItem *clip) {
     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 (clip->type() == AVWIDGET) {
+        ClipItem *item = static_cast <ClipItem*>(clip);
+        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() {
@@ -851,43 +956,51 @@ void CustomTrackView::activateMonitor() {
 void CustomTrackView::dragEnterEvent(QDragEnterEvent * event) {
     if (event->mimeData()->hasFormat("kdenlive/clip")) {
         resetSelectionGroup();
-
         QStringList list = QString(event->mimeData()->data("kdenlive/clip")).split(";");
         m_selectionGroup = new AbstractGroupItem(m_document->fps());
         QPoint pos = QPoint();
         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_scene->clearSelection();
-        resetSelectionGroup();
+        resetSelectionGroup(false);
 
         m_selectionGroup = new AbstractGroupItem(m_document->fps());
         QPoint pos = QPoint();
+        GenTime start = GenTime();
+        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);
@@ -925,9 +1038,9 @@ bool CustomTrackView::insertPossible(AbstractGroupItem *group, const QPoint &pos
 }
 
 void CustomTrackView::slotRefreshEffects(ClipItem *clip) {
-    int track = m_scene->m_tracksList.count() - clip->track();
+    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;
     }
@@ -940,10 +1053,9 @@ void CustomTrackView::slotRefreshEffects(ClipItem *clip) {
 }
 
 void CustomTrackView::addEffect(int track, GenTime pos, QDomElement effect) {
-    ClipItem *clip = getClipItemAt((int)pos.frames(m_document->fps()) + 1, m_scene->m_tracksList.count() - track);
+    ClipItem *clip = getClipItemAt((int)pos.frames(m_document->fps()) + 1, m_document->tracksCount() - track);
     if (clip) {
-        QHash <QString, QString> effectParams = clip->addEffect(effect);
-        if (!m_document->renderer()->mltAddEffect(track, pos, effectParams))
+        if (!m_document->renderer()->mltAddEffect(track, pos, clip->addEffect(effect)))
             emit displayMessage(i18n("Problem adding effect to clip"), ErrorMessage);
         emit clipItemSelected(clip);
     } else emit displayMessage(i18n("Cannot find clip to add effect"), ErrorMessage);
@@ -951,11 +1063,12 @@ void CustomTrackView::addEffect(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;
     }
-    ClipItem *clip = getClipItemAt((int)pos.frames(m_document->fps()) + 1, m_scene->m_tracksList.count() - track);
+    ClipItem *clip = getClipItemAt((int)pos.frames(m_document->fps()) + 1, m_document->tracksCount() - track);
     if (clip) {
         clip->deleteEffect(index);
         emit clipItemSelected(clip);
@@ -974,8 +1087,17 @@ 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;
+            }
             item->initEffect(effect);
-            AddEffectCommand *command = new AddEffectCommand(this, m_scene->m_tracksList.count() - item->track(), item->startPos(), effect, true);
+            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);
         }
     }
@@ -983,26 +1105,30 @@ void CustomTrackView::slotAddEffect(QDomElement effect, GenTime pos, int track)
 }
 
 void CustomTrackView::slotDeleteEffect(ClipItem *clip, QDomElement effect) {
-    AddEffectCommand *command = new AddEffectCommand(this, m_scene->m_tracksList.count() - clip->track(), clip->startPos(), effect, false);
+    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) {
-    ClipItem *clip = getClipItemAt((int)pos.frames(m_document->fps()) + 1, m_scene->m_tracksList.count() - track);
+    ClipItem *clip = getClipItemAt((int)pos.frames(m_document->fps()) + 1, m_document->tracksCount() - track);
     if (clip) {
-        QHash <QString, QString> effectParams = clip->getEffectArgs(effect);
+        EffectsParameterList effectParams = clip->getEffectArgs(effect);
+        if (effect.attribute("tag") == "ladspa") {
+            // Update the ladspa affect file
+            initEffects::ladspaEffectFile(effect.attribute("src"), effect.attribute("ladspaid").toInt(), getLadspaParams(effect));
+        }
         // check if we are trying to reset a keyframe effect
-        if (effectParams.contains("keyframes") && effectParams.value("keyframes").isEmpty()) {
+        if (effectParams.hasParam("keyframes") && effectParams.paramValue("keyframes").isEmpty()) {
             clip->initEffect(effect);
             clip->setEffectAt(ix, effect);
             effectParams = clip->getEffectArgs(effect);
         }
-        if (effectParams.value("disabled") == "1") {
-            if (m_document->renderer()->mltRemoveEffect(track, pos, effectParams.value("kdenlive_ix"))) {
+        if (effectParams.paramValue("disabled") == "1") {
+            if (m_document->renderer()->mltRemoveEffect(track, pos, effectParams.paramValue("kdenlive_ix"), false)) {
                 kDebug() << "//////  DISABLING EFFECT: " << index << ", CURRENTLA: " << clip->selectedEffectIndex();
             } else emit displayMessage(i18n("Problem deleting effect"), ErrorMessage);
-        } else if (!m_document->renderer()->mltEditEffect(m_scene->m_tracksList.count() - clip->track(), clip->startPos(), effectParams))
+        } else if (!m_document->renderer()->mltEditEffect(m_document->tracksCount() - clip->track(), clip->startPos(), effectParams))
             emit displayMessage(i18n("Problem editing effect"), ErrorMessage);
 
         clip->setEffectAt(ix, effect);
@@ -1010,14 +1136,14 @@ 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") {
-                int pos = effectParams.value("out").toInt() - effectParams.value("in").toInt();
+            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") {
-                int pos = effectParams.value("out").toInt() - effectParams.value("in").toInt();
+            if (effect.attribute("id") == "fadeout" || effect.attribute("id") == "fade_to_black") {
+                int pos = effectParams.paramValue("out").toInt() - effectParams.paramValue("in").toInt();
                 clip->setFadeOut(pos);
             }
 
@@ -1027,7 +1153,7 @@ void CustomTrackView::updateEffect(int track, GenTime pos, QDomElement effect, i
 }
 
 void CustomTrackView::moveEffect(int track, GenTime pos, int oldPos, int newPos) {
-    ClipItem *clip = getClipItemAt((int)pos.frames(m_document->fps()) + 1, m_scene->m_tracksList.count() - track);
+    ClipItem *clip = getClipItemAt((int)pos.frames(m_document->fps()) + 1, m_document->tracksCount() - track);
     if (clip) {
         m_document->renderer()->mltMoveEffect(track, pos, oldPos, newPos);
         QDomElement act = clip->effectAt(newPos - 1).cloneNode().toElement();
@@ -1043,19 +1169,19 @@ void CustomTrackView::slotChangeEffectState(ClipItem *clip, int effectPos, bool
     QDomElement effect = clip->effectAt(effectPos);
     QDomElement oldEffect = effect.cloneNode().toElement();
     effect.setAttribute("disabled", disable);
-    EditEffectCommand *command = new EditEffectCommand(this, m_scene->m_tracksList.count() - clip->track(), clip->startPos(), oldEffect, effect, effectPos, true);
+    EditEffectCommand *command = new EditEffectCommand(this, m_document->tracksCount() - clip->track(), clip->startPos(), oldEffect, effect, effectPos, true);
     m_commandStack->push(command);
     m_document->setModified(true);
 }
 
 void CustomTrackView::slotChangeEffectPosition(ClipItem *clip, int currentPos, int newPos) {
-    MoveEffectCommand *command = new MoveEffectCommand(this, m_scene->m_tracksList.count() - clip->track(), clip->startPos(), currentPos, newPos, true);
+    MoveEffectCommand *command = new MoveEffectCommand(this, m_document->tracksCount() - clip->track(), clip->startPos(), currentPos, newPos, true);
     m_commandStack->push(command);
     m_document->setModified(true);
 }
 
 void CustomTrackView::slotUpdateClipEffect(ClipItem *clip, QDomElement oldeffect, QDomElement effect, int ix) {
-    EditEffectCommand *command = new EditEffectCommand(this, m_scene->m_tracksList.count() - clip->track(), clip->startPos(), oldeffect, effect, ix, true);
+    EditEffectCommand *command = new EditEffectCommand(this, m_document->tracksCount() - clip->track(), clip->startPos(), oldeffect, effect, ix, true);
     m_commandStack->push(command);
 }
 
@@ -1069,17 +1195,22 @@ 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_scene->m_tracksList.count() - info.track, cutTime);
+        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);
@@ -1098,7 +1229,7 @@ void CustomTrackView::cutClip(ItemInfo info, GenTime cutTime, bool cut) {
             m_blockRefresh = false;
             return;
         }
-        if (m_document->renderer()->mltRemoveClip(m_scene->m_tracksList.count() - info.track, cutTime) == false) {
+        if (m_document->renderer()->mltRemoveClip(m_document->tracksCount() - info.track, cutTime) == false) {
             emit displayMessage(i18n("Error removing clip at %1 on track %2", m_document->timecode().getTimecodeFromFrames(cutTime.frames(m_document->fps())), info.track), ErrorMessage);
             return;
         }
@@ -1116,7 +1247,7 @@ void CustomTrackView::cutClip(ItemInfo info, GenTime cutTime, bool cut) {
         delete dup;
 
         ItemInfo clipinfo = item->info();
-        clipinfo.track = m_scene->m_tracksList.count() - clipinfo.track;
+        clipinfo.track = m_document->tracksCount() - clipinfo.track;
         bool success = m_document->renderer()->mltResizeClipEnd(clipinfo, info.endPos - info.startPos);
         if (success) {
             item->resizeEnd((int) info.endPos.frames(m_document->fps()));
@@ -1144,20 +1275,51 @@ void CustomTrackView::slotAddTransitionToSelectedClips(QDomElement transition) {
             if (pos < item->startPos() + item->duration() / 2) {
                 // add transition to clip start
                 info.startPos = item->startPos();
-                if (transitiontrack != 0) transitionClip = getClipItemAt((int) info.startPos.frames(m_document->fps()), m_scene->m_tracksList.count() - transitiontrack);
+                if (transitiontrack != 0) transitionClip = getClipItemAt((int) info.startPos.frames(m_document->fps()), m_document->tracksCount() - transitiontrack);
                 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();
-                if (transitiontrack != 0) transitionClip = getClipItemAt((int) info.endPos.frames(m_document->fps()), m_scene->m_tracksList.count() - transitiontrack);
+                if (transitiontrack != 0) transitionClip = getClipItemAt((int) info.endPos.frames(m_document->fps()), m_document->tracksCount() - transitiontrack);
                 if (transitionClip && transitionClip->startPos() > item->startPos()) {
                     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) {
@@ -1166,34 +1328,56 @@ 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) {
+    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) {
-    Transition *tr = new Transition(transitionInfo, endTrack, m_document->fps(), params);
-    scene()->addItem(tr);
-
+    Transition *tr = new Transition(transitionInfo, endTrack, m_document->fps(), params, true);
     //kDebug() << "---- ADDING transition " << params.attribute("value");
-    m_document->renderer()->mltAddTransition(tr->transitionTag(), endTrack, m_scene->m_tracksList.count() - 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);
+    Transition *item = getTransitionItemAt(transitionInfo.startPos, transitionInfo.track);
     if (!item) {
         emit displayMessage(i18n("Select clip to delete"), ErrorMessage);
         return;
     }
-    m_document->renderer()->mltDeleteTransition(item->transitionTag(), endTrack, m_scene->m_tracksList.count() - transitionInfo.track, transitionInfo.startPos, transitionInfo.endPos, item->toXML());
+    m_document->renderer()->mltDeleteTransition(item->transitionTag(), endTrack, m_document->tracksCount() - transitionInfo.track, transitionInfo.startPos, transitionInfo.endPos, item->toXML());
     if (m_dragItem == item) m_dragItem = NULL;
     delete item;
     emit transitionItemSelected(NULL);
@@ -1201,31 +1385,20 @@ void CustomTrackView::deleteTransition(ItemInfo transitionInfo, int endTrack, QD
 }
 
 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_scene->m_tracksList.count() + 1 - track);
-    }
-    EditTransitionCommand *command = new EditTransitionCommand(this, tr->track(), tr->startPos(), old, tr->toXML(), true);
+    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);
+    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_scene->m_tracksList.count() - transition.attribute("transition_atrack").toInt(), item->startPos(), item->endPos(), transition);
+    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);
@@ -1233,11 +1406,9 @@ void CustomTrackView::updateTransition(int track, GenTime pos, QDomElement oldTr
 
 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;
+    const QPointF pos = mapToScene(event->pos());
     if (m_selectionGroup) {
-        m_selectionGroup->setPos(pos, event->pos().y());
+        m_selectionGroup->setPos(pos.x(), pos.y());
         event->setDropAction(Qt::MoveAction);
         if (event->mimeData()->hasFormat("kdenlive/producerslist") || event->mimeData()->hasFormat("kdenlive/clip")) {
             event->acceptProposedAction();
@@ -1259,27 +1430,40 @@ void CustomTrackView::dragLeaveEvent(QDragLeaveEvent * event) {
 void CustomTrackView::dropEvent(QDropEvent * event) {
     if (m_selectionGroup) {
         QList<QGraphicsItem *> items = m_selectionGroup->childItems();
-        m_scene->clearSelection();
         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;
             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_scene->m_tracksList.count() - 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_scene->m_tracksList.count() - item->track();
+            info.track = m_document->tracksCount() - item->track();
             m_document->renderer()->mltInsertClip(info, item->xml(), item->baseClip()->producer(item->track()));
             item->setSelected(true);
         }
+        m_changeSpeedAction->setEnabled(hasVideoClip);
+        m_pasteEffectsAction->setEnabled(m_copiedItems.count() == 1);
+        groupSelectedItems(true);
         m_document->setModified(true);
     } else QGraphicsView::dropEvent(event);
     setFocus();
@@ -1311,11 +1495,11 @@ int CustomTrackView::duration() const {
 }
 
 void CustomTrackView::addTrack(TrackInfo type, int ix) {
-    if (ix == -1) m_scene->m_tracksList << type;
+    if (ix == -1) m_document->insertTrack(ix, type);
     else {
-        m_scene->m_tracksList.insert(m_scene->m_tracksList.count() - ix, type);
+        m_document->insertTrack(m_document->tracksCount() - ix, type);
         // insert track in MLT playlist
-        m_document->renderer()->mltInsertTrack(m_scene->m_tracksList.count() - ix);
+        m_document->renderer()->mltInsertTrack(m_document->tracksCount() - ix, type.type == VIDEOTRACK);
 
         double startY = ix * m_tracksHeight + 1 + m_tracksHeight / 2;
         QRectF r(0, startY, sceneRect().width(), sceneRect().height() - startY);
@@ -1327,15 +1511,10 @@ void CustomTrackView::addTrack(TrackInfo type, int ix) {
         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);
         }
-        QPointF top = m_selectionGroup->boundingRect().topLeft();
-        const int width = m_selectionGroup->boundingRect().width();
-        const int height = m_selectionGroup->boundingRect().height();
-        m_selectionGroup->setPos(top);
-        m_selectionGroup->translate(-top.x(), -top.y() + 1);
-
         // Move graphic items
-        m_selectionGroup->setPos(m_selectionGroup->pos().x(), m_selectionGroup->pos().y() + m_tracksHeight);
+        m_selectionGroup->translate(0, m_tracksHeight);
 
         // adjust track number
         QList<QGraphicsItem *> children = m_selectionGroup->childItems();
@@ -1347,7 +1526,7 @@ 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_scene->m_tracksList.count() - clipinfo.track), clipinfo.startPos.frames(m_document->fps()), clip->baseClip()->producer(clipinfo.track));
+                    m_document->renderer()->mltUpdateClipProducer((int)(m_document->tracksCount() - clipinfo.track), clipinfo.startPos.frames(m_document->fps()), clip->baseClip()->producer(clipinfo.track));
                     kDebug() << "// UPDATING CLIP TO TRACK PROD: " << clipinfo.track;
                 }
             } else if (item->type() == TRANSITIONWIDGET) {
@@ -1358,20 +1537,26 @@ void CustomTrackView::addTrack(TrackInfo type, int ix) {
                 }
             }
         }
-        resetSelectionGroup();
+        resetSelectionGroup(false);
 
     }
-    m_cursorLine->setLine(m_cursorLine->line().x1(), 0, m_cursorLine->line().x1(), m_tracksHeight * m_scene->m_tracksList.count());
-    setSceneRect(0, 0, sceneRect().width(), m_tracksHeight * m_scene->m_tracksList.count());
-    verticalScrollBar()->setMaximum(m_tracksHeight * m_scene->m_tracksList.count());
+    int maxHeight = m_tracksHeight * m_document->tracksCount();
+    for (int i = 0; i < m_guides.count(); i++) {
+        QLineF l = m_guides.at(i)->line();
+        l.setP2(QPointF(l.x2(), maxHeight));
+        m_guides.at(i)->setLine(l);
+    }
+    m_cursorLine->setLine(m_cursorLine->line().x1(), 0, m_cursorLine->line().x1(), maxHeight);
+    setSceneRect(0, 0, sceneRect().width(), maxHeight);
     QTimer::singleShot(300, this, SIGNAL(trackHeightChanged()));
+    viewport()->update();
     //setFixedHeight(50 * m_tracksCount);
 }
 
 void CustomTrackView::removeTrack(int ix) {
     // Delete track in MLT playlist
-    m_document->renderer()->mltDeleteTrack(m_scene->m_tracksList.count() - ix);
-    m_scene->m_tracksList.removeAt(m_scene->m_tracksList.count() - ix - 1);
+    m_document->renderer()->mltDeleteTrack(m_document->tracksCount() - ix);
+    m_document->deleteTrack(m_document->tracksCount() - ix - 1);
 
     double startY = ix * m_tracksHeight + 1 + m_tracksHeight / 2;
     QRectF r(0, startY, sceneRect().width(), sceneRect().height() - startY);
@@ -1382,22 +1567,18 @@ void CustomTrackView::removeTrack(int ix) {
     m_selectionGroup = new AbstractGroupItem(m_document->fps());
     scene()->addItem(m_selectionGroup);
     for (int i = 0; i < selection.count(); i++) {
-        if (selection.at(i)->type() == AVWIDGET || selection.at(i)->type() == TRANSITIONWIDGET)
+        if (selection.at(i)->type() == AVWIDGET || selection.at(i)->type() == TRANSITIONWIDGET) {
             m_selectionGroup->addToGroup(selection.at(i));
+            selection.at(i)->setFlags(QGraphicsItem::ItemIsSelectable);
+        }
     }
-
-    QPointF top = m_selectionGroup->boundingRect().topLeft();
-    const int width = m_selectionGroup->boundingRect().width();
-    const int height = m_selectionGroup->boundingRect().height();
-    m_selectionGroup->setPos(top);
-    m_selectionGroup->translate(-top.x(), -top.y() + 1);
-
     // Move graphic items
-    m_selectionGroup->setPos(m_selectionGroup->pos().x(), m_selectionGroup->pos().y() - m_tracksHeight);
+    qreal ydiff = 0 - (int) m_tracksHeight;
+    m_selectionGroup->translate(0, ydiff);
 
     // adjust track number
     QList<QGraphicsItem *> children = m_selectionGroup->childItems();
-    kDebug() << "// FOUND CLIPS TO MOVE: " << children.count();
+    //kDebug() << "// FOUND CLIPS TO MOVE: " << children.count();
     for (int i = 0; i < children.count(); i++) {
         if (children.at(i)->type() == AVWIDGET) {
             ClipItem *clip = static_cast <ClipItem *>(children.at(i));
@@ -1406,7 +1587,7 @@ void CustomTrackView::removeTrack(int ix) {
             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_scene->m_tracksList.count() - clipinfo.track), clipinfo.startPos.frames(m_document->fps()), clip->baseClip()->producer(clipinfo.track));
+                m_document->renderer()->mltUpdateClipProducer((int)(m_document->tracksCount() - clipinfo.track), clipinfo.startPos.frames(m_document->fps()), clip->baseClip()->producer(clipinfo.track));
         } else if (children.at(i)->type() == TRANSITIONWIDGET) {
             Transition *tr = static_cast <Transition *>(children.at(i));
             tr->updateItem();
@@ -1417,26 +1598,70 @@ void CustomTrackView::removeTrack(int ix) {
             }
         }
     }
-    resetSelectionGroup();
+    resetSelectionGroup(false);
+
+    int maxHeight = m_tracksHeight * m_document->tracksCount();
+    for (int i = 0; i < m_guides.count(); i++) {
+        QLineF l = m_guides.at(i)->line();
+        l.setP2(QPointF(l.x2(), maxHeight));
+        m_guides.at(i)->setLine(l);
+    }
+    m_cursorLine->setLine(m_cursorLine->line().x1(), 0, m_cursorLine->line().x1(), maxHeight);
+    setSceneRect(0, 0, sceneRect().width(), maxHeight);
+    QTimer::singleShot(300, this, SIGNAL(trackHeightChanged()));
+    viewport()->update();
+}
 
-    m_cursorLine->setLine(m_cursorLine->line().x1(), 0, m_cursorLine->line().x1(), m_tracksHeight * m_scene->m_tracksList.count());
-    setSceneRect(0, 0, sceneRect().width(), m_tracksHeight * m_scene->m_tracksList.count());
-    verticalScrollBar()->setMaximum(m_tracksHeight * m_scene->m_tracksList.count());
+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);
     QTimer::singleShot(300, this, SIGNAL(trackHeightChanged()));
+    viewport()->update();
 }
 
 
 void CustomTrackView::slotSwitchTrackAudio(int ix) {
-    int tracknumber = m_scene->m_tracksList.count() - ix;
-    kDebug() << "/////  MUTING TRK: " << ix << "; PL NUM: " << tracknumber;
-    m_scene->m_tracksList[tracknumber - 1].isMute = !m_scene->m_tracksList.at(tracknumber - 1).isMute;
-    m_document->renderer()->mltChangeTrackState(tracknumber, m_scene->m_tracksList.at(tracknumber - 1).isMute, m_scene->m_tracksList.at(tracknumber - 1).isBlind);
+    /*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::slotSwitchTrackLock(int ix) {
+    int tracknumber = m_document->tracksCount() - ix - 1;
+    LockTrackCommand *command = new LockTrackCommand(this, ix, !m_document->trackInfoAt(tracknumber).isLocked, true);
+    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_scene->m_tracksList.count() - ix;
-    m_scene->m_tracksList[tracknumber - 1].isBlind = !m_scene->m_tracksList.at(tracknumber - 1).isBlind;
-    m_document->renderer()->mltChangeTrackState(tracknumber, m_scene->m_tracksList.at(tracknumber - 1).isMute, m_scene->m_tracksList.at(tracknumber - 1).isBlind);
+    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() {
@@ -1445,7 +1670,7 @@ void CustomTrackView::slotRemoveSpace() {
     if (m_menuPosition.isNull()) {
         pos = GenTime(cursorPos(), m_document->fps());
         bool ok;
-        track = QInputDialog::getInteger(this, i18n("Remove Space"), i18n("Track"), 0, 0, m_scene->m_tracksList.count() - 1, 1, &ok);
+        track = QInputDialog::getInteger(this, i18n("Remove Space"), i18n("Track"), 0, 0, m_document->tracksCount() - 1, 1, &ok);
         if (!ok) return;
     } else {
         pos = GenTime((int)(mapToScene(m_menuPosition).x()), m_document->fps());
@@ -1453,16 +1678,35 @@ 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_scene->m_tracksList.count() - track);
-    kDebug()<<"// GOT LENGT; "<<length;
+    int length = m_document->renderer()->mltGetSpaceLength(pos, m_document->tracksCount() - track, true);
+    //kDebug() << "// GOT LENGT; " << length;
     if (length <= 0) {
         emit displayMessage(i18n("You must be in an empty space to remove space (time=%1, track:%2)", m_document->timecode().getTimecodeFromFrames(mapToScene(m_menuPosition).x()), track), ErrorMessage);
         return;
     }
-    InsertSpaceCommand *command = new InsertSpaceCommand(this, pos, track, GenTime(-length, m_document->fps()), true);
+
+    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> ();
+
+    for (int i = 0; i < items.count(); i++) {
+        if (items.at(i)->type() == AVWIDGET || items.at(i)->type() == TRANSITIONWIDGET) {
+            AbstractClipItem *item = static_cast <AbstractClipItem *>(items.at(i));
+            ItemInfo info = item->info();
+            if (item->type() == AVWIDGET) {
+                clipsToMove.append(info);
+            } else if (item->type() == TRANSITIONWIDGET) {
+                transitionsToMove.append(info);
+            }
+        }
+    }
+
+    InsertSpaceCommand *command = new InsertSpaceCommand(this, clipsToMove, transitionsToMove, track, GenTime(-length, m_document->fps()), true);
     m_commandStack->push(command);
 }
 
@@ -1475,58 +1719,107 @@ void CustomTrackView::slotInsertSpace() {
         pos = GenTime((int)(mapToScene(m_menuPosition).x()), m_document->fps());
         track = (int)(mapToScene(m_menuPosition).y() / m_tracksHeight) + 1;
     }
-    SpacerDialog d(GenTime(65, m_document->fps()), m_document->timecode(), track, m_scene->m_tracksList.count(), this);
+    SpacerDialog d(GenTime(65, m_document->fps()), m_document->timecode(), track, m_document->tracksCount(), this);
     if (d.exec() != QDialog::Accepted) return;
     GenTime spaceDuration = d.selectedDuration();
     track = d.selectedTrack();
     ClipItem *item = getClipItemAt(pos, track);
     if (item) pos = item->startPos();
 
-    InsertSpaceCommand *command = new InsertSpaceCommand(this, pos, track, spaceDuration, true);
+    int minh = 0;
+    int maxh = sceneRect().height();
+    if (track != -1) {
+        minh = track * m_tracksHeight + m_tracksHeight / 2;
+        maxh = m_tracksHeight / 2 - 1;
+    }
+
+    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> ();
+
+    for (int i = 0; i < items.count(); i++) {
+        if (items.at(i)->type() == AVWIDGET || items.at(i)->type() == TRANSITIONWIDGET) {
+            AbstractClipItem *item = static_cast <AbstractClipItem *>(items.at(i));
+            ItemInfo info = item->info();
+            if (item->type() == AVWIDGET) {
+                clipsToMove.append(info);
+            } else if (item->type() == TRANSITIONWIDGET) {
+                transitionsToMove.append(info);
+            }
+        }
+    }
+
+    InsertSpaceCommand *command = new InsertSpaceCommand(this, clipsToMove, transitionsToMove, track, spaceDuration, true);
     m_commandStack->push(command);
 }
 
-void CustomTrackView::insertSpace(const GenTime &pos, int track, const GenTime duration, bool add) {
+void CustomTrackView::insertSpace(QList<ItemInfo> clipsToMove, QList<ItemInfo> transToMove, int track, const GenTime duration, const GenTime offset) {
     int diff = duration.frames(m_document->fps());
-    if (!add) diff = -diff;
-    QList<QGraphicsItem *> itemList;
-    if (track == -1) itemList = scene()->items(pos.frames(m_document->fps()) , 1, sceneRect().width() - pos.frames(m_document->fps()), sceneRect().height());
-    else itemList = scene()->items(pos.frames(m_document->fps()) , track * m_tracksHeight + 1, sceneRect().width() - pos.frames(m_document->fps()), m_tracksHeight - 2);
     resetSelectionGroup();
     m_selectionGroup = new AbstractGroupItem(m_document->fps());
     scene()->addItem(m_selectionGroup);
-    for (int i = 0; i < itemList.count(); i++) {
-        if (itemList.at(i)->type() == AVWIDGET || itemList.at(i)->type() == TRANSITIONWIDGET) {
-            /*AbstractClipItem *item = static_cast <AbstractClipItem *> (itemList.at(i));
-            if (item->endPos() > pos)*/
-            m_selectionGroup->addToGroup(itemList.at(i));
-            //item->moveBy(diff, 0);
-        }
-    }
-    QPointF top = m_selectionGroup->boundingRect().topLeft();
-    const int width = m_selectionGroup->boundingRect().width();
-    const int height = m_selectionGroup->boundingRect().height();
-    m_selectionGroup->setPos(top);
-    m_selectionGroup->translate(-top.x(), -top.y() + 1);
-    m_selectionGroup->moveBy(diff, 0);
-    resetSelectionGroup();
-    if (track != -1) track = m_scene->m_tracksList.count() - track;
-    if (!add) m_document->renderer()->mltInsertSpace(pos, track, GenTime() - duration);
-    else m_document->renderer()->mltInsertSpace(pos, track, duration);
+    ClipItem *clip;
+    Transition *transition;
+
+    kDebug() << "/// STARTING SPACE INSERT";
+
+
+    // Create lists with start pos for each track
+    QMap <int, int> trackClipStartList;
+    QMap <int, int> trackTransitionStartList;
+
+    for (int i = 1; i < m_document->tracksCount() + 1; i++) {
+        trackClipStartList[i] = -1;
+        trackTransitionStartList[i] = -1;
+    }
+
+    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 (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) {
+                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);
+    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) {
     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);
+                count++;
+                new AddTimelineClipCommand(this, item->xml(), item->clipProducer(), item->info(), item->effectList(), true, true, deleteCommand);
                 //delete item;
             }
         }
     }
+    if (count > 0) m_commandStack->push(deleteCommand);
+    else delete deleteCommand;
 }
 
 void CustomTrackView::setCursorPos(int pos, bool seek) {
@@ -1551,19 +1844,19 @@ void CustomTrackView::moveCursorPos(int 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::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) {
@@ -1588,16 +1881,51 @@ void CustomTrackView::mouseReleaseEvent(QMouseEvent * event) {
         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);
-        ClipItem *item = getClipItemAt(mappedClick, track);
-        if (item) mappedClick = item->startPos().frames(m_document->fps());
-        int diff = m_selectionGroup->pos().x() - m_spacerStart;//endClick - mappedClick;
-        kDebug() << "// MOVING SPACER DIFF:" << diff;
-        if (diff < 0) mappedClick += diff;
-        InsertSpaceCommand *command = new InsertSpaceCommand(this, GenTime(mappedClick, m_document->fps()), track, GenTime(diff, m_document->fps()), false);
-        m_commandStack->push(command);
-        track = m_scene->m_tracksList.count() - track;
-        m_document->renderer()->mltInsertSpace(GenTime(mappedClick, m_document->fps()), track, GenTime(diff, m_document->fps()));
+        if (m_selectionGroup->sceneBoundingRect().height() > m_tracksHeight) {
+            // We are moving all tracks
+            track = -1;
+        }
+        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> ();
+
+            // Create lists with start pos for each track
+            QMap <int, int> trackClipStartList;
+            QMap <int, int> trackTransitionStartList;
+
+            for (int i = 1; i < m_document->tracksCount() + 1; i++) {
+                trackClipStartList[i] = -1;
+                trackTransitionStartList[i] = -1;
+            }
+
+            for (int i = 0; i < items.count(); i++) {
+                AbstractClipItem *item = static_cast <AbstractClipItem *>(items.at(i));
+                ItemInfo info = item->info();
+                if (item->type() == AVWIDGET) {
+                    clipsToMove.append(info);
+                    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) {
+                    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))
+                        trackTransitionStartList[m_document->tracksCount() - info.track] = info.startPos.frames(m_document->fps());
+                }
+            }
+
+            InsertSpaceCommand *command = new InsertSpaceCommand(this, clipsToMove, transitionsToMove, track, timeOffset, false);
+            m_commandStack->push(command);
+            if (track != -1) track = m_document->tracksCount() - track;
+            m_document->renderer()->mltInsertSpace(trackClipStartList, trackTransitionStartList, track, timeOffset, GenTime());
+        }
+        resetSelectionGroup(false);
+        m_operationMode = NONE;
+    } else if (m_operationMode == RUBBERSELECTION) {
+        kDebug() << "// END RUBBER SELECT";
         resetSelectionGroup();
+        groupSelectedItems();
         m_operationMode = NONE;
     }
 
@@ -1615,19 +1943,81 @@ void CustomTrackView::mouseReleaseEvent(QMouseEvent * event) {
             // 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_scene->m_tracksList.count() - m_dragItemInfo.track), (int)(m_scene->m_tracksList.count() - m_dragItem->track()), (int) m_dragItemInfo.startPos.frames(m_document->fps()), (int)(m_dragItem->startPos().frames(m_document->fps())), item->baseClip()->producer(info.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())), item->baseClip()->producer(info.track));
                 if (success) {
-                    MoveClipCommand *command = new MoveClipCommand(this, m_dragItemInfo, info, false, false);
-                    m_commandStack->push(command);
-                    if (item->baseClip()->isTransparent()) {
-                        // Also move automatic transition
-                        Transition *tr = getTransitionItemAt((int) m_dragItemInfo.startPos.frames(m_document->fps()), m_dragItemInfo.track);
+                    int tracknumber = m_document->tracksCount() - item->track() - 1;
+                    bool isLocked = m_document->trackInfoAt(tracknumber).isLocked;
+                    if (isLocked) item->setItemLocked(true);
+
+                    QUndoCommand *moveCommand = new QUndoCommand();
+                    moveCommand->setText(i18n("Move clip"));
+                    new MoveClipCommand(this, m_dragItemInfo, info, false, moveCommand);
+                    // Also move automatic transitions (on lower track)
+                    Transition *tr = getTransitionItemAtStart(m_dragItemInfo.startPos, m_dragItemInfo.track);
+                    if (tr && tr->isAutomatic()) {
+                        ItemInfo trInfo = tr->info();
+                        ItemInfo newTrInfo = trInfo;
+                        newTrInfo.track = info.track;
+                        newTrInfo.startPos = m_dragItem->startPos();
+                        if (m_dragItemInfo.track == info.track && !item->baseClip()->isTransparent() && getClipItemAtEnd(newTrInfo.endPos, m_document->tracksCount() - tr->transitionEndTrack())) {
+                            // transition end should stay the same
+                        } else {
+                            // transition end should be adjusted to clip
+                            newTrInfo.endPos = newTrInfo.endPos + (newTrInfo.startPos - trInfo.startPos);
+                        }
+                        if (newTrInfo.startPos < newTrInfo.endPos) new MoveTransitionCommand(this, trInfo, newTrInfo, true, moveCommand);
+                    }
+                    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));
-                            m_document->renderer()->mltMoveTransition(tr->transitionTag(), m_scene->m_tracksList.count() - m_dragItemInfo.track, m_scene->m_tracksList.count() - info.track, tr->transitionEndTrack(), m_dragItemInfo.startPos, m_dragItemInfo.endPos, info.startPos, info.endPos);
-                            tr->setPos((int) info.startPos.frames(m_document->fps()), (int)(info.track * m_tracksHeight + 1));
+                            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 start should stay the same
+                            } else {
+                                // 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);
+                        }
+                    }
+                    // Also move automatic transitions (on upper track)
+                    tr = getTransitionItemAtStart(m_dragItemInfo.startPos, m_dragItemInfo.track - 1);
+                    if (m_dragItemInfo.track == info.track && tr && tr->isAutomatic() && (m_document->tracksCount() - tr->transitionEndTrack()) == m_dragItemInfo.track) {
+                        ItemInfo trInfo = tr->info();
+                        ItemInfo newTrInfo = trInfo;
+                        newTrInfo.startPos = m_dragItem->startPos();
+                        ClipItem * upperClip = getClipItemAt(m_dragItemInfo.startPos, m_dragItemInfo.track - 1);
+                        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);
+                        }
+                    }
+                    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) {
+                            ItemInfo trInfo = tr->info();
+                            ItemInfo newTrInfo = trInfo;
+                            newTrInfo.endPos = m_dragItem->endPos();
+                            ClipItem * upperClip = getClipItemAt(m_dragItemInfo.startPos, m_dragItemInfo.track - 1);
+                            if (!upperClip || !upperClip->baseClip()->isTransparent()) {
+                                if (!getClipItemAtStart(trInfo.startPos, tr->track())) {
+                                    // transition start should be moved
+                                    newTrInfo.startPos = newTrInfo.startPos + (newTrInfo.endPos - trInfo.endPos);
+                                }
+                                if (newTrInfo.startPos < newTrInfo.endPos) new MoveTransitionCommand(this, trInfo, newTrInfo, true, moveCommand);
+                            }
                         }
                     }
+                    m_commandStack->push(moveCommand);
                 } else {
                     // undo last move and emit error message
                     MoveClipCommand *command = new MoveClipCommand(this, info, m_dragItemInfo, true);
@@ -1636,11 +2026,16 @@ void CustomTrackView::mouseReleaseEvent(QMouseEvent * event) {
                 }
             }
             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_scene->m_tracksList.count() - m_dragItemInfo.track), (int)(m_scene->m_tracksList.count() - 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,
@@ -1648,29 +2043,29 @@ void CustomTrackView::mouseReleaseEvent(QMouseEvent * event) {
 
             QList<QGraphicsItem *> items = m_selectionGroup->childItems();
 
+            QList<ItemInfo> clipsToMove = QList<ItemInfo> ();
+            QList<ItemInfo> transitionsToMove = QList<ItemInfo> ();
+
             GenTime timeOffset = GenTime(m_selectionGroup->scenePos().x(), m_document->fps()) - m_selectionGroupInfo.startPos;
             const int trackOffset = m_selectionGroup->track() - m_selectionGroupInfo.track;
-            // kDebug() << "&DROPPED GRPOUP:" << timeOffset.frames(25) << "TRK OFF: " << trackOffset;
             if (timeOffset != GenTime() || trackOffset != 0) {
                 QUndoCommand *moveClips = new QUndoCommand();
-                moveClips->setText("Move clips");
+                moveClips->setText(i18n("Move group"));
                 // remove items in MLT playlist
                 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 (m_document->renderer()->mltRemoveClip(m_scene->m_tracksList.count() - info.track, info.startPos) == false) {
+                        if (m_document->renderer()->mltRemoveClip(m_document->tracksCount() - info.track, info.startPos) == false) {
                             // error, clip cannot be removed from playlist
                             emit displayMessage(i18n("Error removing clip at %1 on track %2", m_document->timecode().getTimecodeFromFrames(info.startPos.frames(m_document->fps())), info.track), ErrorMessage);
                         } else {
-                            // clip removed from playlist, create command
-                            ClipItem *clip = static_cast <ClipItem*>(item);
-                            new AddTimelineClipCommand(this, clip->xml(), clip->clipProducer(), info, clip->effectList(), false, true, moveClips);
+                            clipsToMove.append(info);
                         }
                     } else {
+                        transitionsToMove.append(info);
                         Transition *tr = static_cast <Transition*>(item);
-                        new AddTransitionCommand(this, info, tr->transitionEndTrack(), tr->toXML(), true, false, moveClips);
-                        m_document->renderer()->mltDeleteTransition(tr->transitionTag(), tr->transitionEndTrack(), m_scene->m_tracksList.count() - info.track, info.startPos, info.endPos, tr->toXML());
+                        m_document->renderer()->mltDeleteTransition(tr->transitionTag(), tr->transitionEndTrack(), m_document->tracksCount() - info.track, info.startPos, info.endPos, tr->toXML());
                     }
                 }
 
@@ -1679,27 +2074,40 @@ void CustomTrackView::mouseReleaseEvent(QMouseEvent * event) {
                     AbstractClipItem *item = static_cast <AbstractClipItem *>(items.at(i));
                     item->updateItem();
                     ItemInfo info = item->info();
-                    /*info.startPos = info.startPos + timeOffset;
-                    info.endPos = info.endPos + timeOffset;
-                    info.track = info.track + trackOffset;*/
+                    int tracknumber = m_document->tracksCount() - info.track - 1;
+                    bool isLocked = m_document->trackInfoAt(tracknumber).isLocked;
+                    if (isLocked) {
+                        m_selectionGroup->removeFromGroup(item);
+                        item->setItemLocked(true);
+                    }
+
                     if (item->type() == AVWIDGET) {
                         ClipItem *clip = static_cast <ClipItem*>(item);
-                        new AddTimelineClipCommand(this, clip->xml(), clip->clipProducer(), info, clip->effectList(), false, false, moveClips);
-                        info.track = m_scene->m_tracksList.count() - info.track;
+                        info.track = m_document->tracksCount() - info.track;
                         m_document->renderer()->mltInsertClip(info, clip->xml(), clip->baseClip()->producer(info.track));
+                        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_scene->m_tracksList.count()) newTrack = getPreviousVideoTrack(info.track);
+                            newTrack = getPreviousVideoTrack(info.track);
                         }
-                        new AddTransitionCommand(this, info, newTrack, tr->toXML(), false, false, moveClips);
-
-                        m_document->renderer()->mltAddTransition(tr->transitionTag(), newTrack, m_scene->m_tracksList.count() - info.track, info.startPos, info.endPos, tr->toXML());
+                        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);
+
+                QPointF top = m_selectionGroup->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();
             }
         }
 
@@ -1707,21 +2115,50 @@ void CustomTrackView::mouseReleaseEvent(QMouseEvent * event) {
         // resize start
         if (m_dragItem->type() == AVWIDGET) {
             ItemInfo resizeinfo = m_dragItemInfo;
-            resizeinfo.track = m_scene->m_tracksList.count() - resizeinfo.track;
+            resizeinfo.track = m_document->tracksCount() - resizeinfo.track;
             bool success = m_document->renderer()->mltResizeClipStart(resizeinfo, m_dragItem->startPos() - m_dragItemInfo.startPos);
             if (success) {
+                QUndoCommand *resizeCommand = new QUndoCommand();
+                resizeCommand->setText(i18n("Resize clip"));
+
+                // Check if there is an automatic transition on that clip (lower track)
+                Transition *transition = getTransitionItemAtStart(m_dragItemInfo.startPos, m_dragItemInfo.track);
+                if (transition && transition->isAutomatic()) {
+                    ItemInfo trInfo = transition->info();
+                    ItemInfo newTrInfo = trInfo;
+                    newTrInfo.startPos = m_dragItem->startPos();
+                    if (newTrInfo.startPos < newTrInfo.endPos)
+                        new MoveTransitionCommand(this, trInfo, newTrInfo, true, resizeCommand);
+                }
+                // Check if there is an automatic transition on that clip (upper track)
+                transition = getTransitionItemAtStart(m_dragItemInfo.startPos, m_dragItemInfo.track - 1);
+                if (transition && transition->isAutomatic() && (m_document->tracksCount() - transition->transitionEndTrack()) == m_dragItemInfo.track) {
+                    ItemInfo trInfo = transition->info();
+                    ItemInfo newTrInfo = trInfo;
+                    newTrInfo.startPos = m_dragItem->startPos();
+                    ClipItem * upperClip = getClipItemAt(m_dragItemInfo.startPos, m_dragItemInfo.track - 1);
+                    if ((!upperClip || !upperClip->baseClip()->isTransparent()) && newTrInfo.startPos < newTrInfo.endPos) {
+                        new MoveTransitionCommand(this, trInfo, newTrInfo, true, resizeCommand);
+                    }
+                }
                 updateClipFade(static_cast <ClipItem *>(m_dragItem));
-                ResizeClipCommand *command = new ResizeClipCommand(this, m_dragItemInfo, info, false);
-                m_commandStack->push(command);
+                new ResizeClipCommand(this, m_dragItemInfo, info, false, resizeCommand);
+                m_commandStack->push(resizeCommand);
             } else {
                 m_dragItem->resizeStart((int) m_dragItemInfo.startPos.frames(m_document->fps()));
                 emit displayMessage(i18n("Error when resizing clip"), ErrorMessage);
             }
         } else if (m_dragItem->type() == TRANSITIONWIDGET) {
-            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_scene->m_tracksList.count() - m_dragItemInfo.track), (int)(m_scene->m_tracksList.count() - 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), 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);
+            }
+
         }
 
         //m_document->renderer()->doRefresh();
@@ -1729,21 +2166,50 @@ void CustomTrackView::mouseReleaseEvent(QMouseEvent * event) {
         // resize end
         if (m_dragItem->type() == AVWIDGET) {
             ItemInfo resizeinfo = info;
-            resizeinfo.track = m_scene->m_tracksList.count() - resizeinfo.track;
+            resizeinfo.track = m_document->tracksCount() - resizeinfo.track;
             bool success = m_document->renderer()->mltResizeClipEnd(resizeinfo, resizeinfo.endPos - resizeinfo.startPos);
             if (success) {
-                ResizeClipCommand *command = new ResizeClipCommand(this, m_dragItemInfo, info, false);
-                m_commandStack->push(command);
+                QUndoCommand *resizeCommand = new QUndoCommand();
+                resizeCommand->setText(i18n("Resize clip"));
+
+                // Check if there is an automatic transition on that clip (lower track)
+                Transition *tr = getTransitionItemAtEnd(m_dragItemInfo.endPos, m_dragItemInfo.track);
+                if (tr && tr->isAutomatic()) {
+                    ItemInfo trInfo = tr->info();
+                    ItemInfo newTrInfo = trInfo;
+                    newTrInfo.endPos = m_dragItem->endPos();
+                    if (newTrInfo.endPos > newTrInfo.startPos) new MoveTransitionCommand(this, trInfo, newTrInfo, true, resizeCommand);
+                }
+
+                // Check if there is an automatic transition on that clip (upper track)
+                tr = getTransitionItemAtEnd(m_dragItemInfo.endPos, m_dragItemInfo.track - 1);
+                if (tr && tr->isAutomatic() && (m_document->tracksCount() - tr->transitionEndTrack()) == m_dragItemInfo.track) {
+                    ItemInfo trInfo = tr->info();
+                    ItemInfo newTrInfo = trInfo;
+                    newTrInfo.endPos = m_dragItem->endPos();
+                    ClipItem * upperClip = getClipItemAtEnd(m_dragItemInfo.endPos, m_dragItemInfo.track - 1);
+                    if ((!upperClip || !upperClip->baseClip()->isTransparent()) && newTrInfo.endPos > newTrInfo.startPos) {
+                        new MoveTransitionCommand(this, trInfo, newTrInfo, true, resizeCommand);
+                    }
+                }
+
+                new ResizeClipCommand(this, m_dragItemInfo, info, false, resizeCommand);
+                m_commandStack->push(resizeCommand);
                 updateClipFade(static_cast <ClipItem *>(m_dragItem), true);
             } else {
                 m_dragItem->resizeEnd((int) m_dragItemInfo.endPos.frames(m_document->fps()));
                 emit displayMessage(i18n("Error when resizing clip"), ErrorMessage);
             }
         } else if (m_dragItem->type() == TRANSITIONWIDGET) {
-            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_scene->m_tracksList.count() - m_dragItemInfo.track), (int)(m_scene->m_tracksList.count() - 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);
+            }
         }
         //m_document->renderer()->doRefresh();
     } else if (m_operationMode == FADEIN) {
@@ -1764,11 +2230,27 @@ 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;
@@ -1784,14 +2266,33 @@ 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;
@@ -1800,10 +2301,10 @@ void CustomTrackView::mouseReleaseEvent(QMouseEvent * event) {
         QString next = item->keyframes(item->selectedEffectIndex());
         EditKeyFrameCommand *command = new EditKeyFrameCommand(this, item->track(), item->startPos(), item->selectedEffectIndex(), previous, next, false);
         m_commandStack->push(command);
-        updateEffect(m_scene->m_tracksList.count() - item->track(), item->startPos(), item->selectedEffect(), item->selectedEffectIndex());
+        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);
+    emit transitionItemSelected((m_dragItem && m_dragItem->type() == TRANSITIONWIDGET && m_dragItem->isSelected()) ? static_cast <Transition *>(m_dragItem) : NULL);
     m_document->setModified(true);
     m_operationMode = NONE;
 }
@@ -1811,7 +2312,7 @@ void CustomTrackView::mouseReleaseEvent(QMouseEvent * event) {
 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_scene->m_tracksList.count() - info.track, info.startPos) == false) {
+    if (!item || m_document->renderer()->mltRemoveClip(m_document->tracksCount() - info.track, info.startPos) == false) {
         emit displayMessage(i18n("Error removing clip at %1 on track %2", m_document->timecode().getTimecodeFromFrames(info.startPos.frames(m_document->fps())), info.track), ErrorMessage);
         return;
     }
@@ -1821,9 +2322,9 @@ 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_scene->m_tracksList.count() - info.track, info.startPos, info.endPos, tr->toXML());
+            m_document->renderer()->mltDeleteTransition(tr->transitionTag(), tr->transitionEndTrack(), m_document->tracksCount() - info.track, info.startPos, info.endPos, tr->toXML());
             scene()->removeItem(tr);
             delete tr;
         }
@@ -1842,12 +2343,15 @@ void CustomTrackView::deleteSelectedClips() {
     }
     QUndoCommand *deleteSelected = new QUndoCommand();
     deleteSelected->setText(i18n("Delete selected items"));
+    bool resetGroup = false;
     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);
         } 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();
@@ -1856,6 +2360,7 @@ void CustomTrackView::deleteSelectedClips() {
         }
     }
     m_commandStack->push(deleteSelected);
+    if (resetGroup) resetSelectionGroup();
 }
 
 void CustomTrackView::changeClipSpeed() {
@@ -1866,30 +2371,43 @@ 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)
+            if (item->speed() != speed && (item->clipType() == VIDEO || item->clipType() == AV)) {
+                count++;
                 new ChangeSpeedCommand(this, info, item->speed(), speed, item->clipProducer(), true, 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) {
     DocClipBase *baseclip = m_document->clipManager()->getClipById(id);
     ClipItem *item = getClipItemAt((int) info.startPos.frames(m_document->fps()) + 1, info.track);
-    info.track = m_scene->m_tracksList.count() - item->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() {
@@ -1912,20 +2430,29 @@ void CustomTrackView::addClip(QDomElement xml, const QString &clipId, ItemInfo i
         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);
     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_scene->m_tracksList.count() - 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_scene->m_tracksList.count() - info.track;
+    info.track = m_document->tracksCount() - info.track;
     m_document->renderer()->mltInsertClip(info, xml, baseclip->producer(info.track));
     for (int i = 0; i < item->effectsCount(); i++) {
         m_document->renderer()->mltAddEffect(info.track, info.startPos, item->getEffectArgs(item->effectAt(i)), false);
@@ -1942,17 +2469,44 @@ void CustomTrackView::slotUpdateClip(const QString &clipId) {
             if (clip->clipProducer() == clipId) {
                 clip->refreshClip();
                 ItemInfo info = clip->info();
-                info.track = m_scene->m_tracksList.count() - clip->track();
+                info.track = m_document->tracksCount() - clip->track();
                 m_document->renderer()->mltUpdateClip(info, clip->xml(), clip->baseClip()->producer());
             }
         }
     }
 }
 
+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++) {
+        if (list.at(i)->type() == AVWIDGET) {
+            ClipItem *test = static_cast <ClipItem *>(list.at(i));
+            if (test->endPos() == pos) clip = test;
+            break;
+        }
+    }
+    return clip;
+}
+
+ClipItem *CustomTrackView::getClipItemAtStart(GenTime pos, int track) {
+    QList<QGraphicsItem *> list = scene()->items(QPointF(pos.frames(m_document->fps()), track * m_tracksHeight + m_tracksHeight / 2));
+    ClipItem *clip = NULL;
+    for (int i = 0; i < list.size(); i++) {
+        if (list.at(i)->type() == AVWIDGET) {
+            ClipItem *test = static_cast <ClipItem *>(list.at(i));
+            if (test->startPos() == pos) clip = test;
+            break;
+        }
+    }
+    return clip;
+}
+
 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;
@@ -1966,10 +2520,10 @@ ClipItem *CustomTrackView::getClipItemAt(GenTime pos, int track) {
     return getClipItemAt(framepos, track);
 }
 
-Transition *CustomTrackView::getTransitionItemAt(int pos, int track) {
-    QList<QGraphicsItem *> list = scene()->items(QPointF(pos, (track + 1) * m_tracksHeight));
+Transition *CustomTrackView::getTransitionItemAt(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) {
+    for (int i = 0; i < list.size(); i++) {
         if (list.at(i)->type() == TRANSITIONWIDGET) {
             clip = static_cast <Transition *>(list.at(i));
             break;
@@ -1978,47 +2532,159 @@ Transition *CustomTrackView::getTransitionItemAt(int pos, int track) {
     return clip;
 }
 
-Transition *CustomTrackView::getTransitionItemAt(GenTime pos, int track) {
+Transition *CustomTrackView::getTransitionItemAtEnd(GenTime pos, int track) {
     int framepos = (int)(pos.frames(m_document->fps()));
-    return getTransitionItemAt(framepos, track);
+    QList<QGraphicsItem *> list = scene()->items(QPointF(framepos - 1, (track + 1) * m_tracksHeight));
+    Transition *clip = NULL;
+    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;
+            break;
+        }
+    }
+    return clip;
+}
+
+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) {
+        if (list.at(i)->type() == TRANSITIONWIDGET) {
+            Transition *test = static_cast <Transition *>(list.at(i));
+            if (test->startPos() == pos) clip = test;
+            break;
+        }
+    }
+    return clip;
 }
 
 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) {
         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 move at.. ";// << startPos.x() * m_scale * FRAME_SIZE + 1 << ", " << startPos.y() * m_tracksHeight + m_tracksHeight / 2;
+        kDebug() << "----------------  ERROR, CANNOT find clip to move at.. ";
         return;
     }
-    //kDebug() << "----------------  Move CLIP FROM: " << startPos.x() << ", END:" << endPos.x() << ",TRACKS: " << startPos.y() << " TO " << endPos.y();
-
-    bool success = m_document->renderer()->mltMoveClip((int)(m_scene->m_tracksList.count() - start.track), (int)(m_scene->m_tracksList.count() - end.track), (int) start.startPos.frames(m_document->fps()), (int)end.startPos.frames(m_document->fps()), 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()), item->baseClip()->producer(end.track));
     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();
+        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_scene->m_tracksList.count() - start.track, m_scene->m_tracksList.count() - end.track, tr->transitionEndTrack(), start.startPos, start.endPos, end.startPos, end.endPos);
+                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);
                 tr->setPos((int) end.startPos.frames(m_document->fps()), (int)(end.track * m_tracksHeight + 1));
             }
         }
+        KdenliveSettings::setSnaptopoints(snap);
     } 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);
     }
+    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) {
+    // Group Items
+    kDebug() << "// GROUP MOVE; OFFSET: " << offset.frames(25) << ", TK OFF: " << trackOffset;
+    resetSelectionGroup();
+    m_scene->clearSelection();
+    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;
+        }
+        ClipItem *clip = getClipItemAt(startClip.at(i).startPos, startClip.at(i).track);
+        if (clip) {
+            clip->setItemLocked(false);
+            clip->setSelected(true);
+            m_document->renderer()->mltRemoveClip(m_document->tracksCount() - startClip.at(i).track, startClip.at(i).startPos);
+        }
+    }
+    for (int i = 0; i < startTransition.count(); i++) {
+        if (reverseMove) {
+            startTransition[i].startPos = startTransition.at(i).startPos - offset;
+            startTransition[i].track = startTransition.at(i).track - trackOffset;
+        }
+        Transition *tr = getTransitionItemAt(startTransition.at(i).startPos, startTransition.at(i).track);
+        if (tr) {
+            tr->setItemLocked(false);
+            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());
+        }
+    }
+    groupSelectedItems();
+    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);
+
+        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();
+
+        QList<QGraphicsItem *> children = m_selectionGroup->childItems();
+        for (int i = 0; i < children.count(); i++) {
+            // re-add items in correct place
+            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 {
+                Transition *tr = static_cast <Transition*>(item);
+                int newTrack = tr->transitionEndTrack();
+                kDebug() << "/// TRANSITION CURR TRK: " << newTrack;
+                if (!tr->forcedTrack()) {
+                    newTrack += trackOffset;
+                    if (newTrack < 0 || newTrack > m_document->tracksCount()) newTrack = getPreviousVideoTrack(info.track);
+                }
+                tr->updateTransitionEndTrack(newTrack);
+                kDebug() << "/// TRANSITION UPDATED TRK: " << newTrack;
+                m_document->renderer()->mltAddTransition(tr->transitionTag(), newTrack, m_document->tracksCount() - info.track, info.startPos, info.endPos, tr->toXML());
+            }
+        }
+        KdenliveSettings::setSnaptopoints(snap);
+    }
+
 }
 
 void CustomTrackView::moveTransition(const ItemInfo start, const ItemInfo end) {
-    Transition *item = getTransitionItemAt((int)start.startPos.frames(m_document->fps()), start.track);
+    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;
         return;
     }
     //kDebug() << "----------------  Move TRANSITION FROM: " << startPos.x() << ", END:" << endPos.x() << ",TRACKS: " << oldtrack << " TO " << newtrack;
-
+    bool snap = KdenliveSettings::snaptopoints();
+    KdenliveSettings::setSnaptopoints(false);
     //kDebug()<<"///  RESIZE TRANS START: ("<< startPos.x()<<"x"<< startPos.y()<<") / ("<<endPos.x()<<"x"<< endPos.y()<<")";
     if (end.endPos - end.startPos == start.endPos - start.startPos) {
         // Transition was moved
@@ -2026,45 +2692,68 @@ void CustomTrackView::moveTransition(const ItemInfo start, const ItemInfo end) {
     } else if (end.endPos == start.endPos) {
         // Transition start resize
         item->resizeStart((int) end.startPos.frames(m_document->fps()));
-    } else {
+    } else if (end.startPos == start.startPos) {
         // Transition end resize;
         item->resizeEnd((int) end.endPos.frames(m_document->fps()));
+    } else {
+        // Move & resize
+        item->setPos((int) end.startPos.frames(m_document->fps()), (end.track) * m_tracksHeight + 1);
+        item->resizeStart((int) end.startPos.frames(m_document->fps()));
+        item->resizeEnd((int) end.endPos.frames(m_document->fps()));
     }
     //item->moveTransition(GenTime((int) (endPos.x() - startPos.x()), m_document->fps()));
+    KdenliveSettings::setSnaptopoints(snap);
     item->updateTransitionEndTrack(getPreviousVideoTrack(end.track));
-    m_document->renderer()->mltMoveTransition(item->transitionTag(), m_scene->m_tracksList.count() - start.track, m_scene->m_tracksList.count() - end.track, item->transitionEndTrack(), start.startPos, start.endPos, end.startPos, end.endPos);
+    m_document->renderer()->mltMoveTransition(item->transitionTag(), m_document->tracksCount() - start.track, m_document->tracksCount() - end.track, item->transitionEndTrack(), start.startPos, start.endPos, end.startPos, end.endPos);
 }
 
 void CustomTrackView::resizeClip(const ItemInfo start, const ItemInfo end) {
-    int offset = 0;
     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 (resizeClipStart) {
+    if (item->parentItem()) {
+        // Item is part of a group, reset group
+        resetSelectionGroup();
+    }
+    bool snap = KdenliveSettings::snaptopoints();
+    KdenliveSettings::setSnaptopoints(false);
+    if (resizeClipStart && start.startPos != end.startPos) {
         ItemInfo clipinfo = item->info();
-        clipinfo.track = m_scene->m_tracksList.count() - clipinfo.track;
+        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_scene->m_tracksList.count() - clipinfo.track;
+        clipinfo.track = m_document->tracksCount() - clipinfo.track;
         bool success = m_document->renderer()->mltResizeClipEnd(clipinfo, end.endPos - clipinfo.startPos);
         if (success) {
             item->resizeEnd((int) end.endPos.frames(m_document->fps()));
             updateClipFade(item, 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) {
@@ -2073,44 +2762,78 @@ void CustomTrackView::updateClipFade(ClipItem * item, bool updateFadeOut) {
         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();
+            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);
             }
-            end += start;
-            EffectsList::setParameter(oldeffect, "in", QString::number(start));
-            EffectsList::setParameter(oldeffect, "out", QString::number(end));
-            QHash <QString, QString> effectParams = item->getEffectArgs(oldeffect);
-            if (!m_document->renderer()->mltEditEffect(m_scene->m_tracksList.count() - item->track(), item->startPos(), effectParams))
-                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));
-            QHash <QString, QString> effectParams = item->getEffectArgs(oldeffect);
-            if (!m_document->renderer()->mltEditEffect(m_scene->m_tracksList.count() - item->track(), item->startPos(), effectParams))
-                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);
         }
     }
 }
@@ -2119,27 +2842,35 @@ 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));
@@ -2147,9 +2878,11 @@ 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));
+                }
             }
         }
     }
@@ -2157,12 +2890,20 @@ 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);
@@ -2196,7 +2937,7 @@ void CustomTrackView::clipStart() {
 void CustomTrackView::clipEnd() {
     ClipItem *item = getMainActiveClip();
     if (item != NULL) {
-        setCursorPos((int) item->endPos().frames(m_document->fps()));
+        setCursorPos((int) item->endPos().frames(m_document->fps()) - 1);
         checkScrolling();
     }
 }
@@ -2276,7 +3017,7 @@ bool CustomTrackView::addGuide(const GenTime pos, const QString &comment) {
             return false;
         }
     }
-    Guide *g = new Guide(this, pos, comment, m_document->fps(), m_tracksHeight * m_scene->m_tracksList.count());
+    Guide *g = new Guide(this, pos, comment, m_document->fps(), m_tracksHeight * m_document->tracksCount());
     scene()->addItem(g);
     m_guides.append(g);
     qSort(m_guides.begin(), m_guides.end(), sortGuidesList);
@@ -2397,14 +3138,13 @@ void CustomTrackView::drawBackground(QPainter * painter, const QRectF & rect) {
     r.setWidth(r.width() + 1);
     painter->setClipRect(r);
     painter->drawLine(r.left(), 0, r.right(), 0);
-    uint max = m_scene->m_tracksList.count();
+    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_scene->m_tracksList.at(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_scene->m_tracksList.count() + 1;
+    int lowerLimit = m_tracksHeight * m_document->tracksCount() + 1;
     if (height() > lowerLimit)
         painter->fillRect(QRectF(r.left(), lowerLimit, r.width(), height() - lowerLimit), QBrush(base));
 }
@@ -2543,8 +3283,13 @@ void CustomTrackView::pasteClip() {
         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();
@@ -2578,7 +3323,9 @@ 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);
         }
     }
@@ -2601,7 +3348,7 @@ void CustomTrackView::pasteClipEffects() {
         if (clips.at(i)->type() == AVWIDGET) {
             ClipItem *item = static_cast < ClipItem *>(clips.at(i));
             for (int i = 0; i < clip->effectsCount(); i++) {
-                new AddEffectCommand(this, m_scene->m_tracksList.count() - item->track(), item->startPos(), clip->effectAt(i), true, paste);
+                new AddEffectCommand(this, m_document->tracksCount() - item->track(), item->startPos(), clip->effectAt(i), true, paste);
             }
         }
     }
@@ -2610,7 +3357,7 @@ void CustomTrackView::pasteClipEffects() {
 
 
 ClipItem *CustomTrackView::getClipUnderCursor() const {
-    QRectF rect((double) m_cursorPos, 0.0, 1.0, (double)(m_tracksHeight * m_scene->m_tracksList.count()));
+    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++) {
         if (collisions.at(i)->type() == AVWIDGET) {
@@ -2664,8 +3411,19 @@ void CustomTrackView::setInPoint() {
         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
+        emit displayMessage(i18n("Invalid action"), ErrorMessage);
+        return;
+    } else if (endInfo.startPos < startInfo.startPos) {
+        int length = m_document->renderer()->mltGetSpaceLength(endInfo.startPos, m_document->tracksCount() - startInfo.track, false);
+        if (length < (startInfo.startPos - endInfo.startPos).frames(m_document->fps())) {
+            emit displayMessage(i18n("Invalid action"), ErrorMessage);
+            return;
+        }
+    }
     ResizeClipCommand *command = new ResizeClipCommand(this, startInfo, endInfo, true);
     m_commandStack->push(command);
 }
@@ -2679,34 +3437,110 @@ void CustomTrackView::setOutPoint() {
     ItemInfo startInfo = clip->info();
     ItemInfo endInfo = clip->info();
     endInfo.endPos = GenTime(m_cursorPos, m_document->fps());
+    if (endInfo.endPos <= startInfo.startPos) {
+        // Check for invalid resize
+        emit displayMessage(i18n("Invalid action"), ErrorMessage);
+        return;
+    } else if (endInfo.endPos > startInfo.endPos) {
+        int length = m_document->renderer()->mltGetSpaceLength(endInfo.endPos, m_document->tracksCount() - startInfo.track, false);
+        if (length < (endInfo.endPos - startInfo.endPos).frames(m_document->fps())) {
+            emit displayMessage(i18n("Invalid action"), ErrorMessage);
+            return;
+        }
+    }
+
+
+
     ResizeClipCommand *command = new ResizeClipCommand(this, startInfo, endInfo, true);
     m_commandStack->push(command);
 }
 
 void CustomTrackView::slotUpdateAllThumbs() {
     QList<QGraphicsItem *> itemList = items();
+    //if (itemList.isEmpty()) return;
     ClipItem *item;
-    Transition *transitionitem;
+    QString thumbBase = m_document->projectFolder().path() + "/thumbs/";
     for (int i = 0; i < itemList.count(); i++) {
         if (itemList.at(i)->type() == AVWIDGET) {
             item = static_cast <ClipItem *>(itemList.at(i));
+            if (item->clipType() != COLOR) {
+                // Check if we have a cached thumbnail
+                if (item->clipType() == IMAGE || item->clipType() == TEXT || item->clipType() == AUDIO) {
+                    QString thumb = thumbBase + item->baseClip()->getClipHash() + "_0.png";
+                    if (QFile::exists(thumb)) {
+                        QPixmap pix(thumb);
+                        item->slotSetStartThumb(pix);
+                        item->slotSetEndThumb(pix);
+                    }
+                } else {
+                    QString startThumb = thumbBase + item->baseClip()->getClipHash() + '_';
+                    QString endThumb = startThumb;
+                    startThumb.append(QString::number(item->cropStart().frames(m_document->fps())) + ".png");
+                    endThumb.append(QString::number((item->cropStart() + item->cropDuration()).frames(m_document->fps()) - 1) + ".png");
+                    if (QFile::exists(startThumb)) {
+                        QPixmap pix(startThumb);
+                        item->slotSetStartThumb(pix);
+                    }
+                    if (QFile::exists(endThumb)) {
+                        QPixmap pix(endThumb);
+                        item->slotSetEndThumb(pix);
+                    }
+                }
+            }
             item->refreshClip();
             qApp->processEvents();
         }
     }
+    viewport()->update();
 }
 
+void CustomTrackView::saveThumbnails() {
+    QList<QGraphicsItem *> itemList = items();
+    ClipItem *item;
+    QString thumbBase = m_document->projectFolder().path() + "/thumbs/";
+    for (int i = 0; i < itemList.count(); i++) {
+        if (itemList.at(i)->type() == AVWIDGET) {
+            item = static_cast <ClipItem *>(itemList.at(i));
+            if (item->clipType() != COLOR) {
+                // Check if we have a cached thumbnail
+                if (item->clipType() == IMAGE || item->clipType() == TEXT || item->clipType() == AUDIO) {
+                    QString thumb = thumbBase + item->baseClip()->getClipHash() + "_0.png";
+                    if (!QFile::exists(thumb)) {
+                        QPixmap pix(item->startThumb());
+                        pix.save(thumb);
+                    }
+                } else {
+                    QString startThumb = thumbBase + item->baseClip()->getClipHash() + '_';
+                    QString endThumb = startThumb;
+                    startThumb.append(QString::number(item->cropStart().frames(m_document->fps())) + ".png");
+                    endThumb.append(QString::number((item->cropStart() + item->cropDuration()).frames(m_document->fps()) - 1) + ".png");
+                    if (!QFile::exists(startThumb)) {
+                        QPixmap pix(item->startThumb());
+                        pix.save(startThumb);
+                    }
+                    if (!QFile::exists(endThumb)) {
+                        QPixmap pix(item->endThumb());
+                        pix.save(endThumb);
+                    }
+                }
+            }
+        }
+    }
+}
+
+
 void CustomTrackView::slotInsertTrack(int ix) {
     kDebug() << "// INSERTING TRK: " << ix;
     QDialog d(parentWidget());
     Ui::AddTrack_UI view;
     view.setupUi(&d);
-    view.track_nb->setMaximum(m_scene->m_tracksList.count() - 1);
+    view.track_nb->setMaximum(m_document->tracksCount() - 1);
     view.track_nb->setValue(ix);
+    d.setWindowTitle(i18n("Insert Track"));
 
     if (d.exec() == QDialog::Accepted) {
-        if (view.before_select->currentIndex() == 2) {
-            kDebug() << "// AFTER";
+        ix = view.track_nb->value();
+        if (view.before_select->currentIndex() == 1) {
             ix++;
         }
         TrackInfo info;
@@ -2714,23 +3548,24 @@ 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 = false;
+            info.isBlind = true;
+            info.isLocked = false;
         }
-        addTimelineTrack(ix, info);
+        AddTrackCommand *addTrack = new AddTrackCommand(this, ix, info, true, true);
+        m_commandStack->push(addTrack);
         m_document->setModified(true);
-        /*AddTrackCommand* command = new AddTrackCommand(this, ix, info, true, true);
-        m_commandStack->push(command);*/
     }
 }
 
 void CustomTrackView::slotDeleteTrack(int ix) {
     bool ok;
-    ix = QInputDialog::getInteger(this, i18n("Remove Track"), i18n("Track"), ix, 0, m_scene->m_tracksList.count() - 1, 1, &ok);
+    ix = QInputDialog::getInteger(this, i18n("Remove Track"), i18n("Track"), ix, 0, m_document->tracksCount() - 1, 1, &ok);
     if (ok) {
-        TrackInfo info = m_scene->m_tracksList.at(m_scene->m_tracksList.count() - ix - 1);
+        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);
@@ -2738,20 +3573,35 @@ void CustomTrackView::slotDeleteTrack(int ix) {
     }
 }
 
-void CustomTrackView::addTimelineTrack(int ix, TrackInfo trackinfo) {
-    double startY = ix * m_tracksHeight + 1 + m_tracksHeight / 2;
-    QRectF r(0, startY, sceneRect().width(), sceneRect().height() - startY);
-    QList<QGraphicsItem *> selection = m_scene->items(r);
-    kDebug() << "// TRK RECT: " << r << ", ITEMS: " << selection.count();
-    QUndoCommand *addTrack = new QUndoCommand();
-    addTrack->setText("Add track");
-    new AddTrackCommand(this, ix, trackinfo, true, true, addTrack);
+void CustomTrackView::slotChangeTrack(int ix) {
+    QDialog d(parentWidget());
+    Ui::AddTrack_UI view;
+    view.setupUi(&d);
+    view.label->setText(i18n("Change track"));
+    view.before_select->setHidden(true);
+    view.track_nb->setMaximum(m_document->tracksCount() - 1);
+    view.track_nb->setValue(ix);
+    d.setWindowTitle(i18n("Change Track Type"));
 
-    m_commandStack->push(addTrack);
-    kDebug() << "// ADD TRCKL DONE...";
-    update();
+    if (d.exec() == QDialog::Accepted) {
+        TrackInfo info;
+        info.isLocked = false;
+        info.isMute = false;
+        ix = view.track_nb->value();
+
+        if (view.video_track->isChecked()) {
+            info.type = VIDEOTRACK;
+            info.isBlind = false;
+        } else {
+            info.type = AUDIOTRACK;
+            info.isBlind = true;
+        }
+        changeTimelineTrack(ix, info);
+        m_document->setModified(true);
+    }
 }
 
+
 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);
@@ -2778,9 +3628,86 @@ void CustomTrackView::deleteTimelineTrack(int ix, TrackInfo trackinfo) {
 
     new AddTrackCommand(this, ix, trackinfo, false, true, deleteTrack);
     m_commandStack->push(deleteTrack);
-    //removeTrack(ix, trackinfo);
-    kDebug() << "// REM TRK DONE...";
-    update();
+}
+
+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, true);
+    m_commandStack->push(changeTrack);
+}
+
+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);
+        return;
+    }
+    Transition *tr = static_cast <Transition*>(itemList.at(0));
+    tr->setAutomatic(!tr->isAutomatic());
+    QDomElement transition = tr->toXML();
+    m_document->renderer()->mltUpdateTransition(transition.attribute("tag"), transition.attribute("tag"), transition.attribute("transition_btrack").toInt(), m_document->tracksCount() - transition.attribute("transition_atrack").toInt(), tr->startPos(), tr->endPos(), transition);
+}
+
+
+QStringList CustomTrackView::getLadspaParams(QDomElement effect) const {
+    QStringList result;
+    QDomNodeList params = effect.elementsByTagName("parameter");
+    for (int i = 0; i < params.count(); i++) {
+        QDomElement e = params.item(i).toElement();
+        if (!e.isNull() && e.attribute("type") == "constant") {
+            if (e.hasAttribute("factor")) {
+                double factor = e.attribute("factor").toDouble();
+                double value = e.attribute("value").toDouble();
+                value = value / factor;
+                result.append(QString::number(value));
+            } else result.append(e.attribute("value"));
+        }
+    }
+    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();
+        }
+    }
 }
 
 #include "customtrackview.moc"