]> git.sesse.net Git - kdenlive/blobdiff - src/customtrackview.cpp
Improve the export audio automatic setting:
[kdenlive] / src / customtrackview.cpp
index 181d24d679c64bb72aac38bfcd640118b0dde858..0dbcbd82f6b0613c43099c39919ce7fbc818bb62 100644 (file)
@@ -58,6 +58,8 @@
 #include "trackdialog.h"
 #include "tracksconfigdialog.h"
 #include "configtrackscommand.h"
+#include "rebuildgroupcommand.h"
+#include "razorgroupcommand.h"
 
 #include <KDebug>
 #include <KLocale>
@@ -367,7 +369,7 @@ void CustomTrackView::mouseMoveEvent(QMouseEvent * event)
     emit mousePosition(mappedXPos);
 
     if (event->buttons() & Qt::MidButton) return;
-    if (dragMode() == QGraphicsView::RubberBandDrag || (event->modifiers() == Qt::ControlModifier && m_tool != SPACERTOOL)) {
+    if (dragMode() == QGraphicsView::RubberBandDrag || (event->modifiers() == Qt::ControlModifier && m_tool != SPACERTOOL && m_operationMode != RESIZESTART && m_operationMode != RESIZEEND)) {
         event->setAccepted(true);
         m_moveOpMode = NONE;
         QGraphicsView::mouseMoveEvent(event);
@@ -386,14 +388,27 @@ void CustomTrackView::mouseMoveEvent(QMouseEvent * event)
                 } else if (viewport()->width() - pos < 10) {
                     m_scrollOffset = 30;
                     m_scrollTimer.start();
-                } else if (m_scrollTimer.isActive()) m_scrollTimer.stop();
-
+                } else if (m_scrollTimer.isActive()) {
+                    m_scrollTimer.stop();
+                }
             } else if (m_operationMode == RESIZESTART && move) {
                 m_document->renderer()->pause();
-                m_dragItem->resizeStart((int)(snappedPos));
+                if (event->modifiers() != Qt::ControlModifier && m_dragItem->type() == AVWIDGET && m_dragItem->parentItem() && m_dragItem->parentItem() != m_selectionGroup) {
+                    AbstractGroupItem *parent = static_cast <AbstractGroupItem *>(m_dragItem->parentItem());
+                    if (parent)
+                        parent->resizeStart((int)(snappedPos) - m_dragItemInfo.startPos.frames(m_document->fps()));
+                } else {
+                    m_dragItem->resizeStart((int)(snappedPos));
+                }
             } else if (m_operationMode == RESIZEEND && move) {
                 m_document->renderer()->pause();
-                m_dragItem->resizeEnd((int)(snappedPos));
+                if (event->modifiers() != Qt::ControlModifier && m_dragItem->type() == AVWIDGET && m_dragItem->parentItem() && m_dragItem->parentItem() != m_selectionGroup) {
+                    AbstractGroupItem *parent = static_cast <AbstractGroupItem *>(m_dragItem->parentItem());
+                    if (parent)
+                        parent->resizeEnd((int)(snappedPos) - m_dragItemInfo.endPos.frames(m_document->fps()));
+                } else {
+                    m_dragItem->resizeEnd((int)(snappedPos));
+                }
             } else if (m_operationMode == FADEIN && move) {
                 ((ClipItem*) m_dragItem)->setFadeIn((int)(mappedXPos - m_dragItem->startPos().frames(m_document->fps())));
             } else if (m_operationMode == FADEOUT && move) {
@@ -406,24 +421,10 @@ void CustomTrackView::mouseMoveEvent(QMouseEvent * event)
                 pos = (br.bottom() - pos) * maxh;
                 m_dragItem->updateKeyFramePos(keyFramePos, pos);
             }
-            if (m_visualTip) {
-                scene()->removeItem(m_visualTip);
-                m_animationTimer->stop();
-                delete m_animation;
-                m_animation = NULL;
-                delete m_visualTip;
-                m_visualTip = NULL;
-            }
+            removeTipAnimation();
             return;
         } else if (m_operationMode == MOVEGUIDE) {
-            if (m_visualTip) {
-                scene()->removeItem(m_visualTip);
-                m_animationTimer->stop();
-                delete m_animation;
-                m_animation = NULL;
-                delete m_visualTip;
-                m_visualTip = NULL;
-            }
+            removeTipAnimation();
             QGraphicsView::mouseMoveEvent(event);
             return;
         } else if (m_operationMode == SPACER && move && m_selectionGroup) {
@@ -439,9 +440,8 @@ void CustomTrackView::mouseMoveEvent(QMouseEvent * event)
             for (int i = 0; i < children.count(); i++) {
                 if (children.at(i)->type() == GROUPWIDGET) {
                     QList<QGraphicsItem *> subchildren = children.at(i)->childItems();
-                    for (int j = 0; j < subchildren.count(); j++) {
+                    for (int j = 0; j < subchildren.count(); j++)
                         collidingItems.removeAll(subchildren.at(j));
-                    }
                 }
                 collidingItems.removeAll(children.at(i));
             }
@@ -466,9 +466,8 @@ void CustomTrackView::mouseMoveEvent(QMouseEvent * event)
             for (int i = 0; i < children.count(); i++) {
                 if (children.at(i)->type() == GROUPWIDGET) {
                     QList<QGraphicsItem *> subchildren = children.at(i)->childItems();
-                    for (int j = 0; j < subchildren.count(); j++) {
+                    for (int j = 0; j < subchildren.count(); j++)
                         collidingItems.removeAll(subchildren.at(j));
-                    }
                 }
                 collidingItems.removeAll(children.at(i));
             }
@@ -490,9 +489,8 @@ void CustomTrackView::mouseMoveEvent(QMouseEvent * event)
                 for (int i = 0; i < children.count(); i++) {
                     if (children.at(i)->type() == GROUPWIDGET) {
                         QList<QGraphicsItem *> subchildren = children.at(i)->childItems();
-                        for (int j = 0; j < subchildren.count(); j++) {
+                        for (int j = 0; j < subchildren.count(); j++)
                             collidingItems.removeAll(subchildren.at(j));
-                        }
                     }
                     collidingItems.removeAll(children.at(i));
                 }
@@ -517,9 +515,8 @@ void CustomTrackView::mouseMoveEvent(QMouseEvent * event)
                 for (int i = 0; i < children.count(); i++) {
                     if (children.at(i)->type() == GROUPWIDGET) {
                         QList<QGraphicsItem *> subchildren = children.at(i)->childItems();
-                        for (int j = 0; j < subchildren.count(); j++) {
+                        for (int j = 0; j < subchildren.count(); j++)
                             collidingItems.removeAll(subchildren.at(j));
-                        }
                     }
                     collidingItems.removeAll(children.at(i));
                 }
@@ -576,154 +573,48 @@ void CustomTrackView::mouseMoveEvent(QMouseEvent * event)
             QGraphicsView::mouseMoveEvent(event);
             return;
         } else {
-            if (m_visualTip) {
-                scene()->removeItem(m_visualTip);
-                m_animationTimer->stop();
-                delete m_animation;
-                m_animation = NULL;
-                delete m_visualTip;
-                m_visualTip = NULL;
-            }
+            removeTipAnimation();
         }
         m_moveOpMode = opMode;
+        setTipAnimation(clip, opMode, size);
         if (opMode == MOVE) {
             setCursor(Qt::OpenHandCursor);
+            if (item->type() == AVWIDGET) {
+                ClipItem *ci = static_cast <ClipItem *>(item);
+                QString message = ci->clipName() + i18n(":");
+                message.append(i18n(" Position:") + m_document->timecode().getDisplayTimecode(ci->info().startPos, KdenliveSettings::frametimecode()));
+                message.append(i18n(" Duration:") + m_document->timecode().getDisplayTimecode(ci->cropDuration(),  KdenliveSettings::frametimecode()));
+                if (clip->parentItem() && clip->parentItem()->type() == GROUPWIDGET) {
+                    AbstractGroupItem *parent = static_cast <AbstractGroupItem *>(clip->parentItem());
+                    if (clip->parentItem() == m_selectionGroup)
+                        message.append(i18n(" Selection duration:"));
+                    else
+                        message.append(i18n(" Group duration:"));
+                    message.append(m_document->timecode().getDisplayTimecode(parent->duration(), KdenliveSettings::frametimecode()));
+                    if (parent->parentItem() && parent->parentItem()->type() == GROUPWIDGET) {
+                        AbstractGroupItem *parent2 = static_cast <AbstractGroupItem *>(parent->parentItem());
+                        message.append(i18n(" Selection duration:") + m_document->timecode().getDisplayTimecode(parent2->duration(), KdenliveSettings::frametimecode()));
+                    }
+                }
+                emit displayMessage(message, InformationMessage);
+            }
         } else if (opMode == RESIZESTART) {
             setCursor(KCursor("left_side", Qt::SizeHorCursor));
-            if (m_visualTip == NULL) {
-                QRectF rect = clip->sceneBoundingRect();
-                QPolygon polygon;
-                polygon << QPoint(0, - size * 2);
-                polygon << QPoint(size * 2, 0);
-                polygon << QPoint(0, size * 2);
-                polygon << QPoint(0, - size * 2);
-
-                m_visualTip = new QGraphicsPolygonItem(polygon);
-                ((QGraphicsPolygonItem*) m_visualTip)->setBrush(m_tipColor);
-                ((QGraphicsPolygonItem*) m_visualTip)->setPen(m_tipPen);
-                m_visualTip->setPos(rect.x(), rect.y() + rect.height() / 2);
-                m_visualTip->setFlags(QGraphicsItem::ItemIgnoresTransformations);
-                m_visualTip->setZValue(100);
-                m_animation = new QGraphicsItemAnimation;
-                m_animation->setItem(m_visualTip);
-                m_animation->setTimeLine(m_animationTimer);
-                m_animation->setScaleAt(.5, 2, 1);
-                m_animation->setScaleAt(1, 1, 1);
-                scene()->addItem(m_visualTip);
-                m_animationTimer->start();
-            }
+            if (item->type() == AVWIDGET && item->parentItem() && item->parentItem() != m_selectionGroup)
+                emit displayMessage(i18n("Use Ctrl to resize only current item, otherwise all items in this group will be resized at once."), InformationMessage);
         } else if (opMode == RESIZEEND) {
             setCursor(KCursor("right_side", Qt::SizeHorCursor));
-            if (m_visualTip == NULL) {
-                QRectF rect = clip->sceneBoundingRect();
-                QPolygon polygon;
-                polygon << QPoint(0, - size * 2);
-                polygon << QPoint(- size * 2, 0);
-                polygon << QPoint(0, size * 2);
-                polygon << QPoint(0, - size * 2);
-
-                m_visualTip = new QGraphicsPolygonItem(polygon);
-                ((QGraphicsPolygonItem*) m_visualTip)->setBrush(m_tipColor);
-                ((QGraphicsPolygonItem*) m_visualTip)->setPen(m_tipPen);
-                m_visualTip->setFlags(QGraphicsItem::ItemIgnoresTransformations);
-                m_visualTip->setPos(rect.right(), rect.y() + rect.height() / 2);
-                m_visualTip->setZValue(100);
-                m_animation = new QGraphicsItemAnimation;
-                m_animation->setItem(m_visualTip);
-                m_animation->setTimeLine(m_animationTimer);
-                m_animation->setScaleAt(.5, 2, 1);
-                m_animation->setScaleAt(1, 1, 1);
-                scene()->addItem(m_visualTip);
-                m_animationTimer->start();
-            }
-        } else if (opMode == FADEIN) {
-            if (m_visualTip == NULL) {
-                ClipItem *item = (ClipItem *) clip;
-                QRectF rect = clip->sceneBoundingRect();
-                m_visualTip = new QGraphicsEllipseItem(-size, -size, size * 2, size * 2);
-                ((QGraphicsEllipseItem*) m_visualTip)->setBrush(m_tipColor);
-                ((QGraphicsEllipseItem*) m_visualTip)->setPen(m_tipPen);
-                m_visualTip->setPos(rect.x() + item->fadeIn(), rect.y());
-                m_visualTip->setFlags(QGraphicsItem::ItemIgnoresTransformations);
-                m_visualTip->setZValue(100);
-                m_animation = new QGraphicsItemAnimation;
-                m_animation->setItem(m_visualTip);
-                m_animation->setTimeLine(m_animationTimer);
-                m_animation->setScaleAt(.5, 2, 2);
-                m_animation->setScaleAt(1, 1, 1);
-                scene()->addItem(m_visualTip);
-                m_animationTimer->start();
-            }
+            if (item->type() == AVWIDGET && item->parentItem() && item->parentItem() != m_selectionGroup)
+                emit displayMessage(i18n("Use Ctrl to resize only current item, otherwise all items in this group will be resized at once."), InformationMessage);
+        } else if (opMode == FADEIN || opMode == FADEOUT) {
             setCursor(Qt::PointingHandCursor);
-        } else if (opMode == FADEOUT) {
-            if (m_visualTip == NULL) {
-                ClipItem *item = (ClipItem *) clip;
-                QRectF rect = clip->sceneBoundingRect();
-                m_visualTip = new QGraphicsEllipseItem(-size, -size, size * 2, size * 2);
-                ((QGraphicsEllipseItem*) m_visualTip)->setBrush(m_tipColor);
-                ((QGraphicsEllipseItem*) m_visualTip)->setPen(m_tipPen);
-                m_visualTip->setPos(rect.right() - item->fadeOut(), rect.y());
-                m_visualTip->setFlags(QGraphicsItem::ItemIgnoresTransformations);
-                m_visualTip->setZValue(100);
-                m_animation = new QGraphicsItemAnimation;
-                m_animation->setItem(m_visualTip);
-                m_animation->setTimeLine(m_animationTimer);
-                m_animation->setScaleAt(.5, 2, 2);
-                m_animation->setScaleAt(1, 1, 1);
-                scene()->addItem(m_visualTip);
-                m_animationTimer->start();
-            }
-            setCursor(Qt::PointingHandCursor);
-        } else if (opMode == TRANSITIONSTART) {
-            if (m_visualTip == NULL) {
-                QRectF rect = clip->sceneBoundingRect();
-                QPolygon polygon;
-                polygon << QPoint(0, - size * 2);
-                polygon << QPoint(size * 2, 0);
-                polygon << QPoint(0, 0);
-                polygon << QPoint(0, - size * 2);
-
-                m_visualTip = new QGraphicsPolygonItem(polygon);
-                ((QGraphicsPolygonItem*) m_visualTip)->setBrush(m_tipColor);
-                ((QGraphicsPolygonItem*) m_visualTip)->setPen(m_tipPen);
-                m_visualTip->setPos(rect.x(), rect.bottom());
-                m_visualTip->setFlags(QGraphicsItem::ItemIgnoresTransformations);
-                m_visualTip->setZValue(100);
-                m_animation = new QGraphicsItemAnimation;
-                m_animation->setItem(m_visualTip);
-                m_animation->setTimeLine(m_animationTimer);
-                m_animation->setScaleAt(.5, 2, 2);
-                m_animation->setScaleAt(1, 1, 1);
-                scene()->addItem(m_visualTip);
-                m_animationTimer->start();
-            }
-            setCursor(Qt::PointingHandCursor);
-        } else if (opMode == TRANSITIONEND) {
-            if (m_visualTip == NULL) {
-                QRectF rect = clip->sceneBoundingRect();
-                QPolygon polygon;
-                polygon << QPoint(0, - size * 2);
-                polygon << QPoint(- size * 2, 0);
-                polygon << QPoint(0, 0);
-                polygon << QPoint(0, - size * 2);
-
-                m_visualTip = new QGraphicsPolygonItem(polygon);
-                ((QGraphicsPolygonItem*) m_visualTip)->setBrush(m_tipColor);
-                ((QGraphicsPolygonItem*) m_visualTip)->setPen(m_tipPen);
-                m_visualTip->setPos(rect.right(), rect.bottom());
-                m_visualTip->setFlags(QGraphicsItem::ItemIgnoresTransformations);
-                m_visualTip->setZValue(100);
-                m_animation = new QGraphicsItemAnimation;
-                m_animation->setItem(m_visualTip);
-                m_animation->setTimeLine(m_animationTimer);
-                m_animation->setScaleAt(.5, 2, 2);
-                m_animation->setScaleAt(1, 1, 1);
-                scene()->addItem(m_visualTip);
-                m_animationTimer->start();
-            }
+            emit displayMessage(i18n("Drag to add or resize a fade effect."), InformationMessage);
+        } else if (opMode == TRANSITIONSTART || opMode == TRANSITIONEND) {
             setCursor(Qt::PointingHandCursor);
+            emit displayMessage(i18n("Click to add a transition."), InformationMessage);
         } else if (opMode == KEYFRAME) {
             setCursor(Qt::PointingHandCursor);
+            emit displayMessage(i18n("Move keyframe above or below clip to remove it, double click to add a new one."), InformationMessage);
         }
     } // no clip under mouse
     else if (m_tool == RAZORTOOL) {
@@ -733,15 +624,7 @@ void CustomTrackView::mouseMoveEvent(QMouseEvent * event)
         m_moveOpMode = opMode;
         setCursor(Qt::SplitHCursor);
     } else {
-        if (m_visualTip) {
-            scene()->removeItem(m_visualTip);
-            m_animationTimer->stop();
-            delete m_animation;
-            m_animation = NULL;
-            delete m_visualTip;
-            m_visualTip = NULL;
-
-        }
+        removeTipAnimation();
         setCursor(Qt::ArrowCursor);
         if (event->buttons() != Qt::NoButton && event->modifiers() == Qt::NoModifier) {
             QGraphicsView::mouseMoveEvent(event);
@@ -855,7 +738,7 @@ void CustomTrackView::mousePressEvent(QMouseEvent * event)
     }
 #if QT_VERSION >= 0x040600
     // Add shadow to dragged item, currently disabled because of painting artifacts
-    //TODO: re-enable when fixed
+    //TODO: re-enable when fixed
     /*QGraphicsDropShadowEffect *eff = new QGraphicsDropShadowEffect();
     eff->setBlurRadius(5);
     eff->setOffset(3, 3);
@@ -989,31 +872,32 @@ void CustomTrackView::mousePressEvent(QMouseEvent * event)
 
     // Razor tool
     if (m_tool == RAZORTOOL && m_dragItem) {
+        GenTime cutPos = GenTime((int)(mapToScene(event->pos()).x()), m_document->fps());
         if (m_dragItem->type() == TRANSITIONWIDGET) {
             emit displayMessage(i18n("Cannot cut a transition"), ErrorMessage);
-            event->accept();
-            m_dragItem = NULL;
-            return;
-        } else if (m_dragItem->parentItem() && m_dragItem->parentItem() != m_selectionGroup) {
-            emit displayMessage(i18n("Cannot cut a clip in a group"), ErrorMessage);
-            event->accept();
-            m_dragItem = NULL;
-            return;
+        } else {
+            m_document->renderer()->pause();
+            if (m_dragItem->parentItem() && m_dragItem->parentItem() != m_selectionGroup) {
+                razorGroup((AbstractGroupItem *)m_dragItem->parentItem(), cutPos);
+            } else {
+                AbstractClipItem *clip = static_cast <AbstractClipItem *>(m_dragItem);
+                RazorClipCommand* command = new RazorClipCommand(this, clip->info(), cutPos);
+                m_commandStack->push(command);
+            }
+            setDocumentModified();
         }
-        AbstractClipItem *clip = static_cast <AbstractClipItem *>(m_dragItem);
-        RazorClipCommand* command = new RazorClipCommand(this, clip->info(), GenTime((int)(mapToScene(event->pos()).x()), m_document->fps()));
-        m_document->renderer()->pause();
-        m_commandStack->push(command);
-        setDocumentModified();
         m_dragItem = NULL;
         event->accept();
         return;
     }
 
     bool itemSelected = false;
-    if (m_dragItem->isSelected()) itemSelected = true;
-    else if (m_dragItem->parentItem() && m_dragItem->parentItem()->isSelected()) itemSelected = true;
-    else if (dragGroup && dragGroup->isSelected()) itemSelected = true;
+    if (m_dragItem->isSelected())
+        itemSelected = true;
+    else if (m_dragItem->parentItem() && m_dragItem->parentItem()->isSelected())
+        itemSelected = true;
+    else if (dragGroup && dragGroup->isSelected())
+        itemSelected = true;
 
     if (event->modifiers() == Qt::ControlModifier || itemSelected == false) {
         if (event->modifiers() != Qt::ControlModifier) {
@@ -1028,8 +912,10 @@ void CustomTrackView::mousePressEvent(QMouseEvent * event)
             dragGroup = static_cast <AbstractGroupItem *>(m_dragItem->parentItem());
         }
         bool selected = !m_dragItem->isSelected();
-        if (dragGroup) dragGroup->setSelected(selected);
-        else m_dragItem->setSelected(selected);
+        if (dragGroup)
+            dragGroup->setSelected(selected);
+        else
+            m_dragItem->setSelected(selected);
 
         groupSelectedItems();
         ClipItem *clip = static_cast <ClipItem *>(m_dragItem);
@@ -1041,7 +927,9 @@ void CustomTrackView::mousePressEvent(QMouseEvent * event)
         if (m_dragItem && m_dragItem->type() == AVWIDGET && !m_dragItem->isItemLocked()) {
             ClipItem *selected = static_cast <ClipItem*>(m_dragItem);
             emit clipItemSelected(selected);
-        } else emit clipItemSelected(NULL);
+        } else {
+            emit clipItemSelected(NULL);
+        }
     }
 
     // If clicked item is selected, allow move
@@ -1052,8 +940,10 @@ void CustomTrackView::mousePressEvent(QMouseEvent * event)
 
     // Update snap points
     if (m_selectionGroup == NULL) {
-        if (m_operationMode == RESIZEEND || m_operationMode == RESIZESTART) updateSnapPoints(NULL);
-        else updateSnapPoints(m_dragItem);
+        if (m_operationMode == RESIZEEND || m_operationMode == RESIZESTART)
+            updateSnapPoints(NULL);
+        else
+            updateSnapPoints(m_dragItem);
     } else {
         QList <GenTime> offsetList;
         QList<QGraphicsItem *> children = m_selectionGroup->childItems();
@@ -1095,8 +985,10 @@ void CustomTrackView::mousePressEvent(QMouseEvent * event)
             info.endPos = transitionClip->endPos();
         } else {
             GenTime transitionDuration(65, m_document->fps());
-            if (m_dragItem->cropDuration() < transitionDuration) info.endPos = m_dragItem->endPos();
-            else info.endPos = info.startPos + transitionDuration;
+            if (m_dragItem->cropDuration() < transitionDuration)
+                info.endPos = m_dragItem->endPos();
+            else
+                info.endPos = info.startPos + transitionDuration;
         }
         if (info.endPos == info.startPos) info.endPos = info.startPos + GenTime(65, m_document->fps());
         // Check there is no other transition at that place
@@ -1158,6 +1050,33 @@ void CustomTrackView::mousePressEvent(QMouseEvent * event)
     QGraphicsView::mousePressEvent(event);
 }
 
+void CustomTrackView::rebuildGroup(int childTrack, GenTime childPos)
+{
+    const QPointF p((int)childPos.frames(m_document->fps()), childTrack * m_tracksHeight + m_tracksHeight / 2);
+    QList<QGraphicsItem *> list = scene()->items(p);
+    AbstractGroupItem *group = NULL;
+    for (int i = 0; i < list.size(); i++) {
+        if (!list.at(i)->isEnabled()) continue;
+        if (list.at(i)->type() == GROUPWIDGET) {
+            group = static_cast <AbstractGroupItem *>(list.at(i));
+            break;
+        }
+    }
+    rebuildGroup(group);
+}
+
+void CustomTrackView::rebuildGroup(AbstractGroupItem *group)
+{
+    if (group) {
+        QList <QGraphicsItem *> children = group->childItems();
+        m_document->clipManager()->removeGroup(group);
+        scene()->destroyItemGroup(group);
+        for (int i = 0; i < children.count(); i++)
+            children.at(i)->setSelected(true);
+        groupSelectedItems(false, true);
+    }
+}
+
 void CustomTrackView::resetSelectionGroup(bool selectItems)
 {
     if (m_selectionGroup) {
@@ -1213,12 +1132,13 @@ void CustomTrackView::groupSelectedItems(bool force, bool createNewGroup)
 
             scene()->addItem(newGroup);
 
-            // CHeck if we are trying to include a group in a group
+            // Check if we are trying to include a group in a group
             QList <AbstractGroupItem *> groups;
             for (int i = 0; i < selection.count(); i++) {
-                if (selection.at(i)->type() == GROUPWIDGET && !groups.contains(static_cast<AbstractGroupItem *>(selection.at(i)))) {
+                if (selection.at(i)->type() == GROUPWIDGET && !groups.contains(static_cast<AbstractGroupItem *>(selection.at(i))))
                     groups.append(static_cast<AbstractGroupItem *>(selection.at(i)));
-                } else if (selection.at(i)->parentItem() && !groups.contains(static_cast<AbstractGroupItem *>(selection.at(i)->parentItem()))) groups.append(static_cast<AbstractGroupItem *>(selection.at(i)->parentItem()));
+                else if (selection.at(i)->parentItem() && !groups.contains(static_cast<AbstractGroupItem *>(selection.at(i)->parentItem())))
+                    groups.append(static_cast<AbstractGroupItem *>(selection.at(i)->parentItem()));
             }
             if (!groups.isEmpty()) {
                 // ungroup previous groups
@@ -1265,7 +1185,7 @@ void CustomTrackView::mouseDoubleClickEvent(QMouseEvent *event)
     if (m_dragItem && m_dragItem->hasKeyFrames()) {
         /*if (m_moveOpMode == KEYFRAME) {
             // user double clicked on a keyframe, open edit dialog
-            //TODO: update for effects with several values per keyframe
+            //TODO: update for effects with several values per keyframe
             QDialog d(parentWidget());
             Ui::KeyFrameDialog_UI view;
             view.setupUi(&d);
@@ -1322,59 +1242,62 @@ void CustomTrackView::editItemDuration()
         if (m_scene->selectedItems().count() == 1) {
             item = static_cast <AbstractClipItem *>(m_scene->selectedItems().at(0));
         } else {
-            if (m_scene->selectedItems().empty()) {
+            if (m_scene->selectedItems().empty())
                 emit displayMessage(i18n("Cannot find clip to edit"), ErrorMessage);
-            } else {
+            else
                 emit displayMessage(i18n("Cannot edit the duration of multiple items"), ErrorMessage);
-            }
             return;
         }
     }
 
+    if (!item) {
+        emit displayMessage(i18n("Cannot find clip to edit"), ErrorMessage);
+        return;
+    }
+
+    if (item->type() == GROUPWIDGET || (item->parentItem() && item->parentItem()->type() == GROUPWIDGET)) {
+        emit displayMessage(i18n("Cannot edit an item in a group"), ErrorMessage);
+        return;
+    }
+
     if (!item->isItemLocked()) {
         GenTime minimum;
         GenTime maximum;
-        if (item->type() == TRANSITIONWIDGET) {
+        if (item->type() == TRANSITIONWIDGET)
             getTransitionAvailableSpace(item, minimum, maximum);
-        } else {
+        else
             getClipAvailableSpace(item, minimum, maximum);
-        }
-        //kDebug()<<"// GOT MOVE POS: "<<minimum.frames(25)<<" - "<<maximum.frames(25);
+
         ClipDurationDialog d(item, m_document->timecode(), minimum, maximum, this);
         if (d.exec() == QDialog::Accepted) {
+            ItemInfo clipInfo = item->info();
+            ItemInfo startInfo = clipInfo;
             if (item->type() == TRANSITIONWIDGET) {
                 // move & resize transition
-                ItemInfo startInfo;
-                startInfo.startPos = item->startPos();
-                startInfo.endPos = item->endPos();
-                startInfo.track = item->track();
-                ItemInfo endInfo;
-                endInfo.startPos = d.startPos();
-                endInfo.endPos = endInfo.startPos + d.duration();
-                endInfo.track = item->track();
-                MoveTransitionCommand *command = new MoveTransitionCommand(this, startInfo, endInfo, true);
+                clipInfo.startPos = d.startPos();
+                clipInfo.endPos = clipInfo.startPos + d.duration();
+                clipInfo.track = item->track();
+                MoveTransitionCommand *command = new MoveTransitionCommand(this, startInfo, clipInfo, true);
                 m_commandStack->push(command);
             } else {
                 // move and resize clip
                 QUndoCommand *moveCommand = new QUndoCommand();
                 moveCommand->setText(i18n("Edit clip"));
-                ItemInfo clipInfo = item->info();
                 if (d.duration() < item->cropDuration() || d.cropStart() != clipInfo.cropStart) {
                     // duration was reduced, so process it first
-                    ItemInfo startInfo = clipInfo;
                     clipInfo.endPos = clipInfo.startPos + d.duration();
                     clipInfo.cropStart = d.cropStart();
                     new ResizeClipCommand(this, startInfo, clipInfo, true, false, moveCommand);
                 }
                 if (d.startPos() != clipInfo.startPos) {
-                    ItemInfo startInfo = clipInfo;
+                    startInfo = clipInfo;
                     clipInfo.startPos = d.startPos();
                     clipInfo.endPos = item->endPos() + (clipInfo.startPos - startInfo.startPos);
                     new MoveClipCommand(this, startInfo, clipInfo, true, moveCommand);
                 }
                 if (d.duration() > item->cropDuration()) {
                     // duration was increased, so process it after move
-                    ItemInfo startInfo = clipInfo;
+                    startInfo = clipInfo;
                     clipInfo.endPos = clipInfo.startPos + d.duration();
                     clipInfo.cropStart = d.cropStart();
                     new ResizeClipCommand(this, startInfo, clipInfo, true, false, moveCommand);
@@ -1382,16 +1305,18 @@ void CustomTrackView::editItemDuration()
                 m_commandStack->push(moveCommand);
             }
         }
-    } else emit displayMessage(i18n("Item is locked"), ErrorMessage);
+    } else {
+        emit displayMessage(i18n("Item is locked"), ErrorMessage);
+    }
 }
 
-void CustomTrackView::editKeyFrame(const GenTime pos, const int track, const int index, const QString keyframes)
+void CustomTrackView::editKeyFrame(const GenTime /*pos*/, const int /*track*/, const int /*index*/, const QString /*keyframes*/)
 {
-    ClipItem *clip = getClipItemAt((int)pos.frames(m_document->fps()), track);
+    /*ClipItem *clip = getClipItemAt((int)pos.frames(m_document->fps()), track);
     if (clip) {
         clip->setKeyframes(index, keyframes);
         updateEffect(m_document->tracksCount() - clip->track(), clip->startPos(), clip->effectAt(index), index, false);
-    } else emit displayMessage(i18n("Cannot find clip with keyframe"), ErrorMessage);
+    } else emit displayMessage(i18n("Cannot find clip with keyframe"), ErrorMessage);*/
 }
 
 
@@ -1940,8 +1865,10 @@ ClipItem *CustomTrackView::cutClip(ItemInfo info, GenTime cutTime, bool cut, boo
         ClipItem *item = getClipItemAt((int) info.startPos.frames(m_document->fps()), info.track);
         if (!item || cutTime >= item->endPos() || cutTime <= item->startPos()) {
             emit displayMessage(i18n("Cannot find clip to cut"), ErrorMessage);
-            if (item) kDebug() << "/////////  ERROR CUTTING CLIP : (" << item->startPos().frames(25) << "-" << item->endPos().frames(25) << "), INFO: (" << info.startPos.frames(25) << "-" << info.endPos.frames(25) << ")" << ", CUT: " << cutTime.frames(25);
-            else kDebug() << "/// ERROR NO CLIP at: " << info.startPos.frames(m_document->fps()) << ", track: " << info.track;
+            if (item)
+                kDebug() << "/////////  ERROR CUTTING CLIP : (" << item->startPos().frames(25) << "-" << item->endPos().frames(25) << "), INFO: (" << info.startPos.frames(25) << "-" << info.endPos.frames(25) << ")" << ", CUT: " << cutTime.frames(25);
+            else
+                kDebug() << "/// ERROR NO CLIP at: " << info.startPos.frames(m_document->fps()) << ", track: " << info.track;
             m_blockRefresh = false;
             return NULL;
         }
@@ -1976,8 +1903,10 @@ ClipItem *CustomTrackView::cutClip(ItemInfo info, GenTime cutTime, bool cut, boo
         }
         item->resizeEnd(cutPos);
         scene()->addItem(dup);
-        if (item->checkKeyFrames()) slotRefreshEffects(item);
-        if (dup->checkKeyFrames()) slotRefreshEffects(dup);
+        if (item->checkKeyFrames())
+            slotRefreshEffects(item);
+        if (dup->checkKeyFrames())
+            slotRefreshEffects(dup);
         item->baseClip()->addReference();
         m_document->updateClip(item->baseClip()->getId());
         setDocumentModified();
@@ -2020,11 +1949,11 @@ ClipItem *CustomTrackView::cutClip(ItemInfo info, GenTime cutTime, bool cut, boo
         if (success) {
             item->resizeEnd((int) info.endPos.frames(m_document->fps()));
             setDocumentModified();
-        } else
+        } else {
             emit displayMessage(i18n("Error when resizing clip"), ErrorMessage);
+        }
         KdenliveSettings::setSnaptopoints(snap);
         return item;
-
     }
     //QTimer::singleShot(3000, this, SLOT(slotEnableRefresh()));
 }
@@ -2269,7 +2198,9 @@ void CustomTrackView::dropEvent(QDropEvent * event)
             if (isLocked) item->setItemLocked(true);
             ItemInfo clipInfo = info;
             clipInfo.track = m_document->tracksCount() - item->track();
-            if (m_document->renderer()->mltInsertClip(clipInfo, item->xml(), item->baseClip()->producer(item->track()), m_scene->editMode() == OVERWRITEEDIT, m_scene->editMode() == INSERTEDIT) == -1) {
+
+            int worked = m_document->renderer()->mltInsertClip(clipInfo, item->xml(), item->baseClip()->producer(item->track()), m_scene->editMode() == OVERWRITEEDIT, m_scene->editMode() == INSERTEDIT);
+            if (worked == -1) {
                 emit displayMessage(i18n("Cannot insert clip in timeline"), ErrorMessage);
                 brokenClips.append(item);
                 continue;
@@ -2296,7 +2227,7 @@ void CustomTrackView::dropEvent(QDropEvent * event)
         setDocumentModified();
 
         /*
-        // debug info
+        // debug info
         QRectF rect(0, 1 * m_tracksHeight + m_tracksHeight / 2, sceneRect().width(), 2);
         QList<QGraphicsItem *> selection = m_scene->items(rect);
         QStringList timelineList;
@@ -2925,7 +2856,6 @@ void CustomTrackView::deleteClip(const QString &clipId)
 
 void CustomTrackView::setCursorPos(int pos, bool seek)
 {
-    kDebug() << "SEEk TO: " << pos << ", SEEK: " << seek;
     if (pos == m_cursorPos) return;
     emit cursorMoved((int)(m_cursorPos), (int)(pos));
     m_cursorPos = pos;
@@ -3039,12 +2969,14 @@ void CustomTrackView::mouseReleaseEvent(QMouseEvent * event)
                         trackTransitionStartList[m_document->tracksCount() - info.track] = info.startPos.frames(m_document->fps());
                 }
             }
-
-            InsertSpaceCommand *command = new InsertSpaceCommand(this, clipsToMove, transitionsToMove, track, timeOffset, false);
-            m_commandStack->push(command);
-            if (track != -1) track = m_document->tracksCount() - track;
-            kDebug() << "SPACER TRACK:" << track;
-            m_document->renderer()->mltInsertSpace(trackClipStartList, trackTransitionStartList, track, timeOffset, GenTime());
+            if (!clipsToMove.isEmpty() || !transitionsToMove.isEmpty()) {
+                InsertSpaceCommand *command = new InsertSpaceCommand(this, clipsToMove, transitionsToMove, track, timeOffset, false);
+                m_commandStack->push(command);
+                if (track != -1) track = m_document->tracksCount() - track;
+                kDebug() << "SPACER TRACK:" << track;
+                m_document->renderer()->mltInsertSpace(trackClipStartList, trackTransitionStartList, track, timeOffset, GenTime());
+                setDocumentModified();
+            }
         }
         resetSelectionGroup(false);
         m_operationMode = NONE;
@@ -3207,6 +3139,7 @@ void CustomTrackView::mouseReleaseEvent(QMouseEvent * event)
                     adjustTimelineTransitions(m_scene->editMode(), transition, moveCommand);
                     new MoveTransitionCommand(this, m_dragItemInfo, info, false, moveCommand);
                     m_commandStack->push(moveCommand);
+                    setDocumentModified();
                 }
             }
         } else {
@@ -3270,9 +3203,12 @@ void CustomTrackView::mouseReleaseEvent(QMouseEvent * event)
                         info.track = m_document->tracksCount() - info.track;
                         Mlt::Producer *prod;
                         adjustTimelineClips(m_scene->editMode(), clip, ItemInfo(), moveGroup);
-                        if (clip->isAudioOnly()) prod = clip->baseClip()->audioProducer(info.track);
-                        else if (clip->isVideoOnly()) prod = clip->baseClip()->videoProducer();
-                        else prod = clip->baseClip()->producer(info.track);
+                        if (clip->isAudioOnly())
+                            prod = clip->baseClip()->audioProducer(info.track);
+                        else if (clip->isVideoOnly())
+                            prod = clip->baseClip()->videoProducer();
+                        else
+                            prod = clip->baseClip()->producer(info.track);
                         m_document->renderer()->mltInsertClip(info, clip->xml(), prod, m_scene->editMode() == OVERWRITEEDIT, m_scene->editMode() == INSERTEDIT);
                         for (int i = 0; i < clip->effectsCount(); i++) {
                             m_document->renderer()->mltAddEffect(info.track, info.startPos, clip->getEffectArgs(clip->effectAt(i)), false);
@@ -3288,7 +3224,6 @@ void CustomTrackView::mouseReleaseEvent(QMouseEvent * event)
                         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, moveGroup);
                 m_commandStack->push(moveGroup);
 
@@ -3300,6 +3235,8 @@ void CustomTrackView::mouseReleaseEvent(QMouseEvent * event)
                 if (m_selectionGroup) {
                     m_selectionGroupInfo.startPos = GenTime(m_selectionGroup->scenePos().x(), m_document->fps());
                     m_selectionGroupInfo.track = m_selectionGroup->track();
+                } else {
+                    rebuildGroup((AbstractGroupItem *)group);
                 }
                 setDocumentModified();
             }
@@ -3307,194 +3244,52 @@ void CustomTrackView::mouseReleaseEvent(QMouseEvent * event)
         m_document->renderer()->doRefresh();
     } else if (m_operationMode == RESIZESTART && m_dragItem->startPos() != m_dragItemInfo.startPos) {
         // resize start
-        if (m_dragItem->type() == AVWIDGET) {
-            ItemInfo resizeinfo = m_dragItemInfo;
-            resizeinfo.track = m_document->tracksCount() - resizeinfo.track;
-            bool success = m_document->renderer()->mltResizeClipStart(resizeinfo, m_dragItem->startPos() - m_dragItemInfo.startPos);
-            if (success) {
+        if (event->modifiers() != Qt::ControlModifier && m_dragItem->type() == AVWIDGET && m_dragItem->parentItem() && m_dragItem->parentItem() != m_selectionGroup) {
+            AbstractGroupItem *parent = static_cast <AbstractGroupItem *>(m_dragItem->parentItem());
+            if (parent) {
                 QUndoCommand *resizeCommand = new QUndoCommand();
-                resizeCommand->setText(i18n("Resize clip"));
-
-                // Check if there is an automatic transition on that clip (lower track)
-                Transition *transition = getTransitionItemAtStart(m_dragItemInfo.startPos, m_dragItemInfo.track);
-                if (transition && transition->isAutomatic()) {
-                    ItemInfo trInfo = transition->info();
-                    ItemInfo newTrInfo = trInfo;
-                    newTrInfo.startPos = m_dragItem->startPos();
-                    if (newTrInfo.startPos < newTrInfo.endPos)
-                        new MoveTransitionCommand(this, trInfo, newTrInfo, true, resizeCommand);
-                }
-                // Check if there is an automatic transition on that clip (upper track)
-                transition = getTransitionItemAtStart(m_dragItemInfo.startPos, m_dragItemInfo.track - 1);
-                if (transition && transition->isAutomatic() && (m_document->tracksCount() - transition->transitionEndTrack()) == m_dragItemInfo.track) {
-                    ItemInfo trInfo = transition->info();
-                    ItemInfo newTrInfo = trInfo;
-                    newTrInfo.startPos = m_dragItem->startPos();
-                    ClipItem * upperClip = getClipItemAt(m_dragItemInfo.startPos, m_dragItemInfo.track - 1);
-                    if ((!upperClip || !upperClip->baseClip()->isTransparent()) && newTrInfo.startPos < newTrInfo.endPos) {
-                        new MoveTransitionCommand(this, trInfo, newTrInfo, true, resizeCommand);
-                    }
-                }
-
-                ClipItem *clip = static_cast < ClipItem * >(m_dragItem);
-                updatePositionEffects(clip, m_dragItemInfo);
-
-                // check keyframes
-                QDomDocument doc;
-                QDomElement root = doc.createElement("list");
-                doc.appendChild(root);
-                QList <int> indexes;
-                for (int i = 0; i < clip->effectsCount(); i++) {
-                    QDomElement effect = clip->effectAt(i);
-                    if (EffectsList::hasKeyFrames(effect)) {
-                        doc.appendChild(doc.importNode(effect, true));
-                        indexes.append(i);
+                resizeCommand->setText(i18n("Resize group"));
+                QList <QGraphicsItem *> items = parent->childItems();
+                QList <ItemInfo> infos = parent->resizeInfos();
+                parent->clearResizeInfos();
+                int itemcount = 0;
+                for (int i = 0; i < items.count(); ++i) {
+                    AbstractClipItem *item = static_cast<AbstractClipItem *>(items.at(i));
+                    if (item && item->type() == AVWIDGET) {
+                        ItemInfo info = infos.at(itemcount);
+                        prepareResizeClipStart(item, info, item->startPos().frames(m_document->fps()), false, resizeCommand);
+                        ++itemcount;
                     }
                 }
-
-                if (clip->checkEffectsKeyframesPos(m_dragItemInfo.cropStart.frames(m_document->fps()), clip->cropStart().frames(m_document->fps()), true)) {
-                    // Keyframes were modified, updateClip
-                    QDomNodeList effs = doc.elementsByTagName("effect");
-                    // Hack:
-                    // Since we must always resize clip before updating the keyframes, we
-                    // put a resize command before & after checking keyframes so that
-                    // we are sure the resize is performed before whenever we do or undo the action
-
-                    new ResizeClipCommand(this, m_dragItemInfo, info, false, true, resizeCommand);
-                    for (int i = 0; i < indexes.count(); i++) {
-                        new EditEffectCommand(this, m_document->tracksCount() - clip->track(), clip->startPos(), effs.at(i).cloneNode().toElement(), clip->effectAt(indexes.at(i)), indexes.at(i), false, resizeCommand);
-                        updateEffect(m_document->tracksCount() - clip->track(), clip->startPos(), clip->effectAt(indexes.at(i)), indexes.at(i));
-                    }
-                    new ResizeClipCommand(this, m_dragItemInfo, info, false, true, resizeCommand);
-                    emit clipItemSelected(clip);
-                } else new ResizeClipCommand(this, m_dragItemInfo, info, false, false, resizeCommand);
-
                 m_commandStack->push(resizeCommand);
-            } else {
-                bool snap = KdenliveSettings::snaptopoints();
-                KdenliveSettings::setSnaptopoints(false);
-                m_dragItem->resizeStart((int) m_dragItemInfo.startPos.frames(m_document->fps()));
-                KdenliveSettings::setSnaptopoints(snap);
-                emit displayMessage(i18n("Error when resizing clip"), ErrorMessage);
-            }
-        } else if (m_dragItem->type() == TRANSITIONWIDGET) {
-            Transition *transition = static_cast <Transition *>(m_dragItem);
-            if (!m_document->renderer()->mltMoveTransition(transition->transitionTag(), (int)(m_document->tracksCount() - m_dragItemInfo.track), (int)(m_document->tracksCount() - m_dragItemInfo.track), transition->transitionEndTrack(), m_dragItemInfo.startPos, m_dragItemInfo.endPos, info.startPos, info.endPos)) {
-                // Cannot resize transition
-                bool snap = KdenliveSettings::snaptopoints();
-                KdenliveSettings::setSnaptopoints(false);
-                transition->resizeStart((int) m_dragItemInfo.startPos.frames(m_document->fps()));
-                KdenliveSettings::setSnaptopoints(snap);
-                emit displayMessage(i18n("Cannot resize transition"), ErrorMessage);
-            } else {
-                MoveTransitionCommand *command = new MoveTransitionCommand(this, m_dragItemInfo, info, false);
-                m_commandStack->push(command);
             }
-
-        }
-        if (m_dragItem->parentItem() && m_dragItem->parentItem() != m_selectionGroup) {
-            // Item was resized, rebuild group;
-            AbstractGroupItem *group = static_cast <AbstractGroupItem *>(m_dragItem->parentItem());
-            QList <QGraphicsItem *> children = group->childItems();
-            m_document->clipManager()->removeGroup(group);
-            scene()->destroyItemGroup(group);
-            for (int i = 0; i < children.count(); i++) {
-                children.at(i)->setSelected(true);
-            }
-            groupSelectedItems(false, true);
+        } else {
+            prepareResizeClipStart(m_dragItem, m_dragItemInfo, m_dragItem->startPos().frames(m_document->fps()));
         }
-        //m_document->renderer()->doRefresh();
     } else if (m_operationMode == RESIZEEND && m_dragItem->endPos() != m_dragItemInfo.endPos) {
         // resize end
-        if (m_dragItem->type() == AVWIDGET) {
-            ItemInfo resizeinfo = info;
-            resizeinfo.track = m_document->tracksCount() - resizeinfo.track;
-            bool success = m_document->renderer()->mltResizeClipEnd(resizeinfo, resizeinfo.endPos - resizeinfo.startPos);
-            if (success) {
+        if (event->modifiers() != Qt::ControlModifier && m_dragItem->type() == AVWIDGET && m_dragItem->parentItem() && m_dragItem->parentItem() != m_selectionGroup) {
+            AbstractGroupItem *parent = static_cast <AbstractGroupItem *>(m_dragItem->parentItem());
+            if (parent) {
                 QUndoCommand *resizeCommand = new QUndoCommand();
-                resizeCommand->setText(i18n("Resize clip"));
-
-                // Check if there is an automatic transition on that clip (lower track)
-                Transition *tr = getTransitionItemAtEnd(m_dragItemInfo.endPos, m_dragItemInfo.track);
-                if (tr && tr->isAutomatic()) {
-                    ItemInfo trInfo = tr->info();
-                    ItemInfo newTrInfo = trInfo;
-                    newTrInfo.endPos = m_dragItem->endPos();
-                    if (newTrInfo.endPos > newTrInfo.startPos) new MoveTransitionCommand(this, trInfo, newTrInfo, true, resizeCommand);
-                }
-
-                // Check if there is an automatic transition on that clip (upper track)
-                tr = getTransitionItemAtEnd(m_dragItemInfo.endPos, m_dragItemInfo.track - 1);
-                if (tr && tr->isAutomatic() && (m_document->tracksCount() - tr->transitionEndTrack()) == m_dragItemInfo.track) {
-                    ItemInfo trInfo = tr->info();
-                    ItemInfo newTrInfo = trInfo;
-                    newTrInfo.endPos = m_dragItem->endPos();
-                    ClipItem * upperClip = getClipItemAtEnd(m_dragItemInfo.endPos, m_dragItemInfo.track - 1);
-                    if ((!upperClip || !upperClip->baseClip()->isTransparent()) && newTrInfo.endPos > newTrInfo.startPos) {
-                        new MoveTransitionCommand(this, trInfo, newTrInfo, true, resizeCommand);
+                resizeCommand->setText(i18n("Resize group"));
+                QList <QGraphicsItem *> items = parent->childItems();
+                QList <ItemInfo> infos = parent->resizeInfos();
+                parent->clearResizeInfos();
+                int itemcount = 0;
+                for (int i = 0; i < items.count(); ++i) {
+                    AbstractClipItem *item = static_cast<AbstractClipItem *>(items.at(i));
+                    if (item && item->type() == AVWIDGET) {
+                        ItemInfo info = infos.at(itemcount);
+                        prepareResizeClipEnd(item, info, item->endPos().frames(m_document->fps()), false, resizeCommand);
+                        ++itemcount;
                     }
                 }
-
-                // check keyframes
-                ClipItem *clip = static_cast < ClipItem * >(m_dragItem);
-                QDomDocument doc;
-                QDomElement root = doc.createElement("list");
-                doc.appendChild(root);
-                QList <int> indexes;
-                for (int i = 0; i < clip->effectsCount(); i++) {
-                    QDomElement effect = clip->effectAt(i);
-                    if (EffectsList::hasKeyFrames(effect)) {
-                        doc.appendChild(doc.importNode(effect, true));
-                        indexes.append(i);
-                    }
-                }
-
-                if (clip->checkEffectsKeyframesPos((m_dragItemInfo.cropStart + m_dragItemInfo.endPos - m_dragItemInfo.startPos).frames(m_document->fps()) - 1, (clip->cropStart() + clip->cropDuration()).frames(m_document->fps()) - 1, false)) {
-                    // Keyframes were modified, updateClip
-                    QDomNodeList effs = doc.elementsByTagName("effect");
-                    // Hack:
-                    // Since we must always resize clip before updating the keyframes, we
-                    // put a resize command before & after checking keyframes so that
-                    // we are sure the resize is performed before whenever we do or undo the action
-
-                    new ResizeClipCommand(this, m_dragItemInfo, info, false, true, resizeCommand);
-                    for (int i = 0; i < indexes.count(); i++) {
-                        new EditEffectCommand(this, m_document->tracksCount() - clip->track(), clip->startPos(), effs.at(i).cloneNode().toElement(), clip->effectAt(indexes.at(i)), indexes.at(i), false, resizeCommand);
-                        updateEffect(m_document->tracksCount() - clip->track(), clip->startPos(), clip->effectAt(indexes.at(i)), indexes.at(i));
-                    }
-                    new ResizeClipCommand(this, m_dragItemInfo, info, false, true, resizeCommand);
-                    emit clipItemSelected(clip);
-                } else new ResizeClipCommand(this, m_dragItemInfo, info, false, false, resizeCommand);
-
                 m_commandStack->push(resizeCommand);
-                updatePositionEffects(clip, m_dragItemInfo);
-            } else {
-                m_dragItem->resizeEnd((int) m_dragItemInfo.endPos.frames(m_document->fps()));
-                emit displayMessage(i18n("Error when resizing clip"), ErrorMessage);
-            }
-        } else if (m_dragItem->type() == TRANSITIONWIDGET) {
-            Transition *transition = static_cast <Transition *>(m_dragItem);
-            if (!m_document->renderer()->mltMoveTransition(transition->transitionTag(), (int)(m_document->tracksCount() - m_dragItemInfo.track), (int)(m_document->tracksCount() - m_dragItemInfo.track), transition->transitionEndTrack(), m_dragItemInfo.startPos, m_dragItemInfo.endPos, info.startPos, info.endPos)) {
-                // Cannot resize transition
-                transition->resizeEnd((int) m_dragItemInfo.endPos.frames(m_document->fps()));
-                emit displayMessage(i18n("Cannot resize transition"), ErrorMessage);
-            } else {
-                MoveTransitionCommand *command = new MoveTransitionCommand(this, m_dragItemInfo, info, false);
-                m_commandStack->push(command);
             }
+        } else {
+            prepareResizeClipEnd(m_dragItem, m_dragItemInfo, m_dragItem->endPos().frames(m_document->fps()));
         }
-        if (m_dragItem->parentItem() && m_dragItem->parentItem() != m_selectionGroup) {
-            // Item was resized, rebuild group;
-            AbstractGroupItem *group = static_cast <AbstractGroupItem *>(m_dragItem->parentItem());
-            QList <QGraphicsItem *> children = group->childItems();
-            m_document->clipManager()->removeGroup(group);
-            scene()->destroyItemGroup(group);
-            for (int i = 0; i < children.count(); i++) {
-                children.at(i)->setSelected(true);
-            }
-            groupSelectedItems(false, true);
-        }
-        //m_document->renderer()->doRefresh();
     } else if (m_operationMode == FADEIN) {
         // resize fade in effect
         ClipItem * item = static_cast <ClipItem *>(m_dragItem);
@@ -3596,11 +3391,14 @@ void CustomTrackView::mouseReleaseEvent(QMouseEvent * event)
         val = (br.bottom() - val) * maxh;
         int start = item->cropStart().frames(m_document->fps());
         int end = (item->cropStart() + item->cropDuration()).frames(m_document->fps()) - 1;
+
         if ((val < -50 || val > 150) && item->editedKeyFramePos() != start && item->editedKeyFramePos() != end) {
             //delete keyframe
-            kDebug() << "// DELETE KFR: " << item->editedKeyFramePos();
             item->movedKeyframe(item->getEffectAt(item->selectedEffectIndex()), item->selectedKeyFramePos(), -1, 0);
-        } else item->movedKeyframe(item->getEffectAt(item->selectedEffectIndex()), item->selectedKeyFramePos(), item->editedKeyFramePos(), item->editedKeyFrameValue());
+        } else {
+            item->movedKeyframe(item->getEffectAt(item->selectedEffectIndex()), item->selectedKeyFramePos(), item->editedKeyFramePos(), item->editedKeyFrameValue());
+        }
+
         QDomElement newEffect = item->selectedEffect().cloneNode().toElement();
         //item->updateKeyframeEffect();
         //QString next = item->keyframes(item->selectedEffectIndex());
@@ -3799,19 +3597,103 @@ void CustomTrackView::cutSelectedClips()
 {
     QList<QGraphicsItem *> itemList = scene()->selectedItems();
     GenTime currentPos = GenTime(m_cursorPos, m_document->fps());
-    for (int i = 0; i < itemList.count(); i++) {
+    QList <QGraphicsItem *> skipList;
+    for (int i = 0; i < itemList.count(); ++i) {
+        if (skipList.indexOf(itemList.at(i)) != -1)
+            continue;
         if (itemList.at(i)->type() == AVWIDGET) {
             ClipItem *item = static_cast <ClipItem *>(itemList.at(i));
             if (item->parentItem() && item->parentItem() != m_selectionGroup) {
-                emit displayMessage(i18n("Cannot cut a clip in a group"), ErrorMessage);
-            } else if (currentPos > item->startPos() && currentPos <  item->endPos()) {
+                skipList.append(item->parentItem()->childItems());
+                razorGroup((AbstractGroupItem *)item->parentItem(), currentPos);
+            } else if (currentPos > item->startPos() && currentPos < item->endPos()) {
                 RazorClipCommand *command = new RazorClipCommand(this, item->info(), currentPos);
                 m_commandStack->push(command);
             }
+        } else if (itemList.at(i)->type() == GROUPWIDGET && itemList.at(i) != m_selectionGroup) {
+            skipList.append(itemList.at(i)->childItems());
+            razorGroup((AbstractGroupItem *)itemList.at(i), currentPos);
         }
     }
 }
 
+void CustomTrackView::razorGroup(AbstractGroupItem* group, GenTime cutPos)
+{
+    if (group) {
+        QList <QGraphicsItem *> children = group->childItems();
+        QList <ItemInfo> clips1, transitions1;
+        QList <ItemInfo> clipsCut, transitionsCut;
+        QList <ItemInfo> clips2, transitions2;
+        for (int i = 0; i < children.count(); ++i) {
+            children.at(i)->setSelected(false);
+            AbstractClipItem *child = static_cast <AbstractClipItem *>(children.at(i));
+            if (child->type() == AVWIDGET) {
+                if (cutPos > child->endPos())
+                    clips1 << child->info();
+                else if (cutPos < child->startPos())
+                    clips2 << child->info();
+                else
+                    clipsCut << child->info();
+            } else {
+                if (cutPos > child->endPos())
+                    transitions1 << child->info();
+                else if (cutPos < child->startPos())
+                    transitions2 << child->info();
+                else
+                    transitionsCut << child->info();
+            }
+        }
+        if (clipsCut.isEmpty() && transitionsCut.isEmpty() && ((clips1.isEmpty() && transitions1.isEmpty()) || (clips2.isEmpty() && transitions2.isEmpty())))
+            return;
+        RazorGroupCommand *command = new RazorGroupCommand(this, clips1, transitions1, clipsCut, transitionsCut, clips2, transitions2, cutPos);
+        m_commandStack->push(command);
+    }
+}
+
+void CustomTrackView::slotRazorGroup(QList <ItemInfo> clips1, QList <ItemInfo> transitions1, QList <ItemInfo> clipsCut, QList <ItemInfo> transitionsCut, QList <ItemInfo> clips2, QList <ItemInfo> transitions2, GenTime cutPos, bool cut)
+{
+    if (cut) {
+        for (int i = 0; i < clipsCut.count(); ++i) {
+            ClipItem *clip = getClipItemAt(clipsCut.at(i).startPos.frames(m_document->fps()), clipsCut.at(i).track);
+            if (clip) {
+                ClipItem *clipBehind = cutClip(clipsCut.at(i), cutPos, true);
+                clips1 << clip->info();
+                if (clipBehind != NULL)
+                    clips2 << clipBehind->info();
+            }
+        }
+        /* TODO: cut transitionsCut
+         * For now just append them to group1 */
+        transitions1 << transitionsCut;
+        doGroupClips(clips1, transitions1, true);
+        doGroupClips(clips2, transitions2, true);
+    } else {
+        /* we might also just use clipsCut.at(0)->parentItem().
+         * Do this loop just in case something went wrong during cut */
+        for (int i = 0; i < clipsCut.count(); ++i) {
+            ClipItem *clip = getClipItemAt(cutPos.frames(m_document->fps()), clipsCut.at(i).track);
+            if (clip && clip->parentItem() && clip->parentItem()->type() == GROUPWIDGET) {
+                AbstractGroupItem *group = static_cast <AbstractGroupItem *>(clip->parentItem());
+                QList <QGraphicsItem *> children = group->childItems();
+                QList <ItemInfo> groupClips;
+                QList <ItemInfo> groupTrans;
+                for (int j = 0; j < children.count(); ++j) {
+                    if (children.at(j)->type() == AVWIDGET)
+                        groupClips << ((AbstractClipItem *)children.at(j))->info();
+                    else if (children.at(j)->type() == TRANSITIONWIDGET)
+                        groupTrans << ((AbstractClipItem *)children.at(j))->info();
+                }
+                doGroupClips(groupClips, groupTrans, false);
+                break;
+            }
+        }
+        for (int i = 0; i < clipsCut.count(); ++i)
+            cutClip(clipsCut.at(i), cutPos, false);
+        // TODO: uncut transitonsCut
+        doGroupClips(QList <ItemInfo>() << clips1 << clipsCut << clips2, QList <ItemInfo>() << transitions1 << transitionsCut << transitions2, true);
+    }
+}
+
 void CustomTrackView::groupClips(bool group)
 {
     QList<QGraphicsItem *> itemList = scene()->selectedItems();
@@ -4175,22 +4057,28 @@ void CustomTrackView::moveGroup(QList <ItemInfo> startClip, QList <ItemInfo> sta
             ItemInfo info = item->info();
             int tracknumber = m_document->tracksCount() - info.track - 1;
             bool isLocked = m_document->trackInfoAt(tracknumber).isLocked;
-            if (isLocked) item->setItemLocked(true);
-            else if (item->isItemLocked()) item->setItemLocked(false);
+            if (isLocked)
+                item->setItemLocked(true);
+            else if (item->isItemLocked())
+                item->setItemLocked(false);
 
             if (item->type() == AVWIDGET) {
                 ClipItem *clip = static_cast <ClipItem*>(item);
                 info.track = m_document->tracksCount() - info.track;
                 Mlt::Producer *prod;
-                if (clip->isAudioOnly()) prod = clip->baseClip()->audioProducer(info.track);
-                else if (clip->isVideoOnly()) prod = clip->baseClip()->videoProducer();
-                else prod = clip->baseClip()->producer(info.track);
+                if (clip->isAudioOnly())
+                    prod = clip->baseClip()->audioProducer(info.track);
+                else if (clip->isVideoOnly())
+                    prod = clip->baseClip()->videoProducer();
+                else
+                    prod = clip->baseClip()->producer(info.track);
                 m_document->renderer()->mltInsertClip(info, clip->xml(), prod);
             } else if (item->type() == TRANSITIONWIDGET) {
                 Transition *tr = static_cast <Transition*>(item);
                 int newTrack;
-                if (!tr->forcedTrack()) newTrack = getPreviousVideoTrack(info.track);
-                else {
+                if (!tr->forcedTrack()) {
+                    newTrack = getPreviousVideoTrack(info.track);
+                } else {
                     newTrack = tr->transitionEndTrack() + trackOffset;
                     if (newTrack < 0 || newTrack > m_document->tracksCount()) newTrack = getPreviousVideoTrack(info.track);
                 }
@@ -4198,6 +4086,8 @@ void CustomTrackView::moveGroup(QList <ItemInfo> startClip, QList <ItemInfo> sta
                 m_document->renderer()->mltAddTransition(tr->transitionTag(), newTrack, m_document->tracksCount() - info.track, info.startPos, info.endPos, tr->toXML());
             }
         }
+        if (!reverseMove)
+            rebuildGroup(m_selectionGroup);
         resetSelectionGroup(false);
         KdenliveSettings::setSnaptopoints(snap);
         m_document->renderer()->doRefresh();
@@ -4302,6 +4192,241 @@ void CustomTrackView::resizeClip(const ItemInfo start, const ItemInfo end, bool
     setDocumentModified();
 }
 
+void CustomTrackView::prepareResizeClipStart(AbstractClipItem* item, ItemInfo oldInfo, int pos, bool check, QUndoCommand *command)
+{
+    if (pos == oldInfo.startPos.frames(m_document->fps()))
+        return;
+    bool snap = KdenliveSettings::snaptopoints();
+    if (check) {
+        KdenliveSettings::setSnaptopoints(false);
+        item->resizeStart(pos);
+        if (item->startPos().frames(m_document->fps()) != pos) {
+            item->resizeStart(oldInfo.startPos.frames(m_document->fps()));
+            emit displayMessage(i18n("Not possible to resize"), ErrorMessage);
+            KdenliveSettings::setSnaptopoints(snap);
+            return;
+        }
+        KdenliveSettings::setSnaptopoints(snap);
+    }
+
+    bool hasParentCommand = false;
+    if (command) {
+        hasParentCommand = true;
+    } else {
+        command = new QUndoCommand();
+        command->setText(i18n("Resize clip start"));
+    }
+
+    // do this here, too, because otherwise undo won't update the group
+    if (item->parentItem() && item->parentItem() != m_selectionGroup)
+        new RebuildGroupCommand(this, item->info().track, item->endPos() - GenTime(1, m_document->fps()), command);
+
+    ItemInfo info = item->info();
+    if (item->type() == AVWIDGET) {
+        ItemInfo resizeinfo = oldInfo;
+        resizeinfo.track = m_document->tracksCount() - resizeinfo.track;
+        bool success = m_document->renderer()->mltResizeClipStart(resizeinfo, item->startPos() - oldInfo.startPos);
+        if (success) {
+            // Check if there is an automatic transition on that clip (lower track)
+            Transition *transition = getTransitionItemAtStart(oldInfo.startPos, oldInfo.track);
+            if (transition && transition->isAutomatic()) {
+                ItemInfo trInfo = transition->info();
+                ItemInfo newTrInfo = trInfo;
+                newTrInfo.startPos = item->startPos();
+                if (newTrInfo.startPos < newTrInfo.endPos)
+                    new MoveTransitionCommand(this, trInfo, newTrInfo, true, command);
+            }
+            // Check if there is an automatic transition on that clip (upper track)
+            transition = getTransitionItemAtStart(oldInfo.startPos, oldInfo.track - 1);
+            if (transition && transition->isAutomatic() && (m_document->tracksCount() - transition->transitionEndTrack()) == oldInfo.track) {
+                ItemInfo trInfo = transition->info();
+                ItemInfo newTrInfo = trInfo;
+                newTrInfo.startPos = item->startPos();
+                ClipItem * upperClip = getClipItemAt(oldInfo.startPos, oldInfo.track - 1);
+                if ((!upperClip || !upperClip->baseClip()->isTransparent()) && newTrInfo.startPos < newTrInfo.endPos)
+                    new MoveTransitionCommand(this, trInfo, newTrInfo, true, command);
+            }
+
+            ClipItem *clip = static_cast < ClipItem * >(item);
+            updatePositionEffects(clip, oldInfo);
+
+            // check keyframes
+            QDomDocument doc;
+            QDomElement root = doc.createElement("list");
+            doc.appendChild(root);
+            QList <int> indexes;
+            for (int i = 0; i < clip->effectsCount(); i++) {
+                QDomElement effect = clip->effectAt(i);
+                if (EffectsList::hasKeyFrames(effect)) {
+                    doc.appendChild(doc.importNode(effect, true));
+                    indexes.append(i);
+                }
+            }
+
+            if (clip->checkEffectsKeyframesPos(oldInfo.cropStart.frames(m_document->fps()), clip->cropStart().frames(m_document->fps()), true)) {
+                // Keyframes were modified, updateClip
+                QDomNodeList effs = doc.elementsByTagName("effect");
+                // Hack:
+                // Since we must always resize clip before updating the keyframes, we
+                // put a resize command before & after checking keyframes so that
+                // we are sure the resize is performed before whenever we do or undo the action
+
+                new ResizeClipCommand(this, oldInfo, info, false, true, command);
+                for (int i = 0; i < indexes.count(); i++) {
+                    new EditEffectCommand(this, m_document->tracksCount() - clip->track(), clip->startPos(), effs.at(i).cloneNode().toElement(), clip->effectAt(indexes.at(i)), indexes.at(i), false, command);
+                    updateEffect(m_document->tracksCount() - clip->track(), clip->startPos(), clip->effectAt(indexes.at(i)), indexes.at(i));
+                }
+                new ResizeClipCommand(this, oldInfo, info, false, true, command);
+                emit clipItemSelected(clip);
+            } else {
+                new ResizeClipCommand(this, oldInfo, info, false, false, command);
+            }
+        } else {
+            KdenliveSettings::setSnaptopoints(false);
+            item->resizeStart((int) oldInfo.startPos.frames(m_document->fps()));
+            KdenliveSettings::setSnaptopoints(snap);
+            emit displayMessage(i18n("Error when resizing clip"), ErrorMessage);
+        }
+    } else if (item->type() == TRANSITIONWIDGET) {
+        Transition *transition = static_cast <Transition *>(item);
+        if (!m_document->renderer()->mltMoveTransition(transition->transitionTag(), (int)(m_document->tracksCount() - oldInfo.track), (int)(m_document->tracksCount() - oldInfo.track), transition->transitionEndTrack(), oldInfo.startPos, oldInfo.endPos, info.startPos, info.endPos)) {
+            // Cannot resize transition
+            KdenliveSettings::setSnaptopoints(false);
+            transition->resizeStart((int) oldInfo.startPos.frames(m_document->fps()));
+            KdenliveSettings::setSnaptopoints(snap);
+            emit displayMessage(i18n("Cannot resize transition"), ErrorMessage);
+        } else {
+            MoveTransitionCommand *moveCommand = new MoveTransitionCommand(this, oldInfo, info, false, command);
+            if (command == NULL)
+                m_commandStack->push(moveCommand);
+        }
+
+    }
+    if (item->parentItem() && item->parentItem() != m_selectionGroup)
+        new RebuildGroupCommand(this, item->info().track, item->endPos() - GenTime(1, m_document->fps()), command);
+
+    if (!hasParentCommand)
+        m_commandStack->push(command);
+}
+
+void CustomTrackView::prepareResizeClipEnd(AbstractClipItem* item, ItemInfo oldInfo, int pos, bool check, QUndoCommand *command)
+{
+    if (pos == oldInfo.endPos.frames(m_document->fps()))
+        return;
+    bool snap = KdenliveSettings::snaptopoints();
+    if (check) {
+        KdenliveSettings::setSnaptopoints(false);
+        item->resizeEnd(pos);
+        if (item->endPos().frames(m_document->fps()) != pos) {
+            item->resizeEnd(oldInfo.endPos.frames(m_document->fps()));
+            emit displayMessage(i18n("Not possible to resize"), ErrorMessage);
+            KdenliveSettings::setSnaptopoints(snap);
+            return;
+        }
+        KdenliveSettings::setSnaptopoints(snap);
+    }
+
+    bool hasParentCommand = false;
+    if (command) {
+        hasParentCommand = true;
+    } else {
+        command = new QUndoCommand();
+        command->setText(i18n("Resize clip end"));
+    }
+
+    // do this here, too, because otherwise undo won't update the group
+    if (item->parentItem() && item->parentItem() != m_selectionGroup)
+        new RebuildGroupCommand(this, item->info().track, item->startPos(), command);
+
+    ItemInfo info = item->info();
+    if (item->type() == AVWIDGET) {
+        ItemInfo resizeinfo = info;
+        resizeinfo.track = m_document->tracksCount() - resizeinfo.track;
+        bool success = m_document->renderer()->mltResizeClipEnd(resizeinfo, resizeinfo.endPos - resizeinfo.startPos);
+        if (success) {
+            // Check if there is an automatic transition on that clip (lower track)
+            Transition *tr = getTransitionItemAtEnd(oldInfo.endPos, oldInfo.track);
+            if (tr && tr->isAutomatic()) {
+                ItemInfo trInfo = tr->info();
+                ItemInfo newTrInfo = trInfo;
+                newTrInfo.endPos = item->endPos();
+                if (newTrInfo.endPos > newTrInfo.startPos)
+                    new MoveTransitionCommand(this, trInfo, newTrInfo, true, command);
+            }
+
+            // Check if there is an automatic transition on that clip (upper track)
+            tr = getTransitionItemAtEnd(oldInfo.endPos, oldInfo.track - 1);
+            if (tr && tr->isAutomatic() && (m_document->tracksCount() - tr->transitionEndTrack()) == oldInfo.track) {
+                ItemInfo trInfo = tr->info();
+                ItemInfo newTrInfo = trInfo;
+                newTrInfo.endPos = item->endPos();
+                ClipItem * upperClip = getClipItemAtEnd(oldInfo.endPos, oldInfo.track - 1);
+                if ((!upperClip || !upperClip->baseClip()->isTransparent()) && newTrInfo.endPos > newTrInfo.startPos)
+                    new MoveTransitionCommand(this, trInfo, newTrInfo, true, command);
+
+            }
+
+            // check keyframes
+            ClipItem *clip = static_cast < ClipItem * >(item);
+            QDomDocument doc;
+            QDomElement root = doc.createElement("list");
+            doc.appendChild(root);
+            QList <int> indexes;
+            for (int i = 0; i < clip->effectsCount(); i++) {
+                QDomElement effect = clip->effectAt(i);
+                if (EffectsList::hasKeyFrames(effect)) {
+                    doc.appendChild(doc.importNode(effect, true));
+                    indexes.append(i);
+                }
+            }
+
+            if (clip->checkEffectsKeyframesPos((oldInfo.cropStart + oldInfo.endPos - oldInfo.startPos).frames(m_document->fps()) - 1, (clip->cropStart() + clip->cropDuration()).frames(m_document->fps()) - 1, false)) {
+                // Keyframes were modified, updateClip
+                QDomNodeList effs = doc.elementsByTagName("effect");
+                // Hack:
+                // Since we must always resize clip before updating the keyframes, we
+                // put a resize command before & after checking keyframes so that
+                // we are sure the resize is performed before whenever we do or undo the action
+
+                new ResizeClipCommand(this, oldInfo, info, false, true, command);
+                for (int i = 0; i < indexes.count(); i++) {
+                    new EditEffectCommand(this, m_document->tracksCount() - clip->track(), clip->startPos(), effs.at(i).cloneNode().toElement(), clip->effectAt(indexes.at(i)), indexes.at(i), false, command);
+                    updateEffect(m_document->tracksCount() - clip->track(), clip->startPos(), clip->effectAt(indexes.at(i)), indexes.at(i));
+                }
+                new ResizeClipCommand(this, oldInfo, info, false, true, command);
+                emit clipItemSelected(clip);
+            } else {
+                new ResizeClipCommand(this, oldInfo, info, false, false, command);
+            }
+
+            updatePositionEffects(clip, oldInfo);
+        } else {
+            KdenliveSettings::setSnaptopoints(false);
+            item->resizeEnd((int) oldInfo.endPos.frames(m_document->fps()));
+            KdenliveSettings::setSnaptopoints(true);
+            emit displayMessage(i18n("Error when resizing clip"), ErrorMessage);
+        }
+    } else if (item->type() == TRANSITIONWIDGET) {
+        Transition *transition = static_cast <Transition *>(item);
+        if (!m_document->renderer()->mltMoveTransition(transition->transitionTag(), (int)(m_document->tracksCount() - oldInfo.track), (int)(m_document->tracksCount() - oldInfo.track), transition->transitionEndTrack(), oldInfo.startPos, oldInfo.endPos, info.startPos, info.endPos)) {
+            // Cannot resize transition
+            KdenliveSettings::setSnaptopoints(false);
+            transition->resizeEnd((int) oldInfo.endPos.frames(m_document->fps()));
+            KdenliveSettings::setSnaptopoints(true);
+            emit displayMessage(i18n("Cannot resize transition"), ErrorMessage);
+        } else {
+            MoveTransitionCommand *moveCommand = new MoveTransitionCommand(this, oldInfo, info, false, command);
+            if (command == NULL)
+                m_commandStack->push(moveCommand);
+        }
+    }
+    if (item->parentItem() && item->parentItem() != m_selectionGroup)
+        new RebuildGroupCommand(this, item->info().track, item->startPos(), command);
+
+    if (!hasParentCommand)
+        m_commandStack->push(command);
+}
+
 void CustomTrackView::updatePositionEffects(ClipItem * item, ItemInfo info)
 {
     int end = item->fadeIn();
@@ -4404,6 +4529,10 @@ void CustomTrackView::updatePositionEffects(ClipItem * item, ItemInfo info)
         QDomElement oldeffect = item->effectAt(effectPos);
         int start = item->cropStart().frames(m_document->fps());
         int max = start + item->cropDuration().frames(m_document->fps());
+        if (start < 0) {
+            max -= start;
+            start = 0;
+        }
         oldeffect.setAttribute("in", start);
         oldeffect.setAttribute("out", max);
         if (!m_document->renderer()->mltEditEffect(m_document->tracksCount() - item->track(), item->startPos(), item->getEffectArgs(oldeffect)))
@@ -4724,14 +4853,7 @@ void CustomTrackView::setScale(double scaleFactor, double verticalScale)
     QMatrix newmatrix;
     newmatrix = newmatrix.scale(scaleFactor, verticalScale);
     m_scene->setScale(scaleFactor, verticalScale);
-    if (m_visualTip) {
-        scene()->removeItem(m_visualTip);
-        m_animationTimer->stop();
-        delete m_animation;
-        m_animation = NULL;
-        delete m_visualTip;
-        m_visualTip = NULL;
-    }
+    removeTipAnimation();
     double verticalPos = mapToScene(QPoint(0, viewport()->height() / 2)).y();
     bool adjust = false;
     if (verticalScale != matrix().m22()) adjust = true;
@@ -4749,8 +4871,10 @@ void CustomTrackView::setScale(double scaleFactor, double verticalScale)
 
     int diff = sceneRect().width() - m_projectDuration;
     if (diff * newmatrix.m11() < 50) {
-        if (newmatrix.m11() < 0.4) setSceneRect(0, 0, (m_projectDuration + 100 / newmatrix.m11()), sceneRect().height());
-        else setSceneRect(0, 0, (m_projectDuration + 300), sceneRect().height());
+        if (newmatrix.m11() < 0.4)
+            setSceneRect(0, 0, (m_projectDuration + 100 / newmatrix.m11()), sceneRect().height());
+        else
+            setSceneRect(0, 0, (m_projectDuration + 300), sceneRect().height());
     }
     centerOn(QPointF(cursorPos(), verticalPos));
 }
@@ -4758,9 +4882,8 @@ void CustomTrackView::setScale(double scaleFactor, double verticalScale)
 void CustomTrackView::slotRefreshGuides()
 {
     if (KdenliveSettings::showmarkers()) {
-        for (int i = 0; i < m_guides.count(); i++) {
+        for (int i = 0; i < m_guides.count(); i++)
             m_guides.at(i)->update();
-        }
     }
 }
 
@@ -4783,8 +4906,10 @@ void CustomTrackView::drawBackground(QPainter * painter, const QRectF &rect)
         TrackInfo info = m_document->trackInfoAt(maxTrack - i - 1);
         if (info.isLocked || info.type == AUDIOTRACK || i == m_selectedTrack) {
             const QRectF track(min, m_tracksHeight * i + 1, max - min, m_tracksHeight - 1);
-            if (i == m_selectedTrack) painter->fillRect(track, scheme.background(KColorScheme::ActiveBackground).color());
-            else painter->fillRect(track, info.isLocked ? lockedColor : audioColor);
+            if (i == m_selectedTrack)
+                painter->fillRect(track, scheme.background(KColorScheme::ActiveBackground).color());
+            else
+                painter->fillRect(track, info.isLocked ? lockedColor : audioColor);
         }
         painter->drawLine(QPointF(min, m_tracksHeight *(i + 1)), QPointF(max, m_tracksHeight *(i + 1)));
     }
@@ -4858,9 +4983,8 @@ void CustomTrackView::initSearchStrings()
     }
 
     // add guides
-    for (int i = 0; i < m_guides.count(); i++) {
+    for (int i = 0; i < m_guides.count(); i++)
         m_searchPoints.append(m_guides.at(i)->info());
-    }
 
     qSort(m_searchPoints);
 }
@@ -4878,9 +5002,8 @@ QList<ItemInfo> CustomTrackView::findId(const QString &clipId)
     for (int i = 0; i < itemList.count(); i++) {
         if (itemList.at(i)->type() == AVWIDGET) {
             ClipItem *item = (ClipItem *)itemList.at(i);
-            if (item->clipProducer() == clipId) {
+            if (item->clipProducer() == clipId)
                 matchingInfo << item->info();
-            }
         }
     }
     return matchingInfo;
@@ -5188,24 +5311,7 @@ void CustomTrackView::setInPoint()
             return;
         }
     }
-    ItemInfo startInfo = clip->info();
-    ItemInfo endInfo = startInfo;
-    endInfo.startPos = GenTime(m_cursorPos, m_document->fps());
-    if (endInfo.startPos >= startInfo.endPos || endInfo.startPos < startInfo.startPos - startInfo.cropStart) {
-        // Check for invalid resize
-        emit displayMessage(i18n("Invalid action"), ErrorMessage);
-        return;
-    } else if (endInfo.startPos < startInfo.startPos) {
-        int length = m_document->renderer()->mltGetSpaceLength(endInfo.startPos, m_document->tracksCount() - startInfo.track, false);
-        if ((clip->type() == TRANSITIONWIDGET && itemCollision(clip, endInfo) == true) || (
-                    (clip->type() == AVWIDGET) && length < (startInfo.startPos - endInfo.startPos).frames(m_document->fps()))) {
-            emit displayMessage(i18n("Invalid action"), ErrorMessage);
-            return;
-        }
-    }
-    if (clip->type() == TRANSITIONWIDGET) {
-        m_commandStack->push(new MoveTransitionCommand(this, startInfo, endInfo, true));
-    } else m_commandStack->push(new ResizeClipCommand(this, startInfo, endInfo, true, false));
+    prepareResizeClipStart(clip, clip->info(), m_cursorPos, true);
 }
 
 void CustomTrackView::setOutPoint()
@@ -5219,27 +5325,7 @@ void CustomTrackView::setOutPoint()
             return;
         }
     }
-    ItemInfo startInfo = clip->info();
-    ItemInfo endInfo = clip->info();
-    endInfo.endPos = GenTime(m_cursorPos, m_document->fps());
-    CLIPTYPE type = (CLIPTYPE) static_cast <ClipItem *>(clip)->clipType();
-    if (endInfo.endPos <= startInfo.startPos || (type != IMAGE && type != COLOR && type != TEXT && endInfo.endPos > startInfo.startPos + clip->maxDuration() - startInfo.cropStart)) {
-        // Check for invalid resize
-        emit displayMessage(i18n("Invalid action"), ErrorMessage);
-        return;
-    } else if (endInfo.endPos > startInfo.endPos) {
-        int length = m_document->renderer()->mltGetSpaceLength(startInfo.endPos, m_document->tracksCount() - startInfo.track, false);
-        if ((clip->type() == TRANSITIONWIDGET && itemCollision(clip, endInfo) == true) || (clip->type() == AVWIDGET && length != -1 && length < (endInfo.endPos - startInfo.endPos).frames(m_document->fps()))) {
-            kDebug() << " RESIZE ERROR, BLNK: " << length << ", RESIZE: " << (endInfo.endPos - startInfo.endPos).frames(m_document->fps());
-            emit displayMessage(i18n("Invalid action"), ErrorMessage);
-            return;
-        }
-    }
-
-
-    if (clip->type() == TRANSITIONWIDGET) {
-        m_commandStack->push(new MoveTransitionCommand(this, startInfo, endInfo, true));
-    } else m_commandStack->push(new ResizeClipCommand(this, startInfo, endInfo, true, false));
+    prepareResizeClipEnd(clip, clip->info(), m_cursorPos, true);
 }
 
 void CustomTrackView::slotUpdateAllThumbs()
@@ -5324,28 +5410,23 @@ void CustomTrackView::saveThumbnails()
 void CustomTrackView::slotInsertTrack(int ix)
 {
     TrackDialog d(m_document, parentWidget());
+    d.comboTracks->setCurrentIndex(ix);
     d.label->setText(i18n("Insert track"));
-    d.track_nb->setMaximum(m_document->tracksCount() - 1);
-    d.track_nb->setValue(ix);
     d.setWindowTitle(i18n("Insert New Track"));
-    d.slotUpdateName(ix);
 
     if (d.exec() == QDialog::Accepted) {
-        ix = d.track_nb->value();
-        if (d.before_select->currentIndex() == 1) {
+        ix = d.comboTracks->currentIndex();
+        if (d.before_select->currentIndex() == 1)
             ix++;
-        }
         TrackInfo info;
+        info.isMute = false;
+        info.isLocked = false;
         if (d.video_track->isChecked()) {
             info.type = VIDEOTRACK;
-            info.isMute = false;
             info.isBlind = false;
-            info.isLocked = false;
         } else {
             info.type = AUDIOTRACK;
-            info.isMute = false;
             info.isBlind = true;
-            info.isLocked = false;
         }
         AddTrackCommand *addTrack = new AddTrackCommand(this, ix, info, true);
         m_commandStack->push(addTrack);
@@ -5357,16 +5438,14 @@ void CustomTrackView::slotDeleteTrack(int ix)
 {
     if (m_document->tracksCount() < 2) return;
     TrackDialog d(m_document, parentWidget());
+    d.comboTracks->setCurrentIndex(ix);
     d.label->setText(i18n("Delete track"));
     d.before_select->setHidden(true);
-    d.track_nb->setMaximum(m_document->tracksCount() - 1);
-    d.track_nb->setValue(ix);
-    d.slotUpdateName(ix);
     d.setWindowTitle(i18n("Delete Track"));
     d.video_track->setHidden(true);
     d.audio_track->setHidden(true);
     if (d.exec() == QDialog::Accepted) {
-        ix = d.track_nb->value();
+        ix = d.comboTracks->currentIndex();
         TrackInfo info = m_document->trackInfoAt(m_document->tracksCount() - ix - 1);
         deleteTimelineTrack(ix, info);
         setDocumentModified();
@@ -6031,3 +6110,105 @@ void CustomTrackView::updatePalette()
         m_cursorLine->setPen(pen1);
     }
 }
+
+void CustomTrackView::removeTipAnimation()
+{
+    if (m_visualTip) {
+        scene()->removeItem(m_visualTip);
+        m_animationTimer->stop();
+        delete m_animation;
+        m_animation = NULL;
+        delete m_visualTip;
+        m_visualTip = NULL;
+    }
+}
+
+void CustomTrackView::setTipAnimation(AbstractClipItem *clip, OPERATIONTYPE mode, const double size)
+{
+    if (m_visualTip == NULL) {
+        QRectF rect = clip->sceneBoundingRect();
+        m_animation = new QGraphicsItemAnimation;
+        m_animation->setTimeLine(m_animationTimer);
+        m_animation->setScaleAt(1, 1, 1);
+        QPolygon polygon;
+        switch (mode) {
+        case FADEIN:
+        case FADEOUT:
+            m_visualTip = new QGraphicsEllipseItem(-size, -size, size * 2, size * 2);
+            ((QGraphicsEllipseItem*) m_visualTip)->setBrush(m_tipColor);
+            ((QGraphicsEllipseItem*) m_visualTip)->setPen(m_tipPen);
+            if (mode == FADEIN)
+                m_visualTip->setPos(rect.x() + ((ClipItem *) clip)->fadeIn(), rect.y());
+            else
+                m_visualTip->setPos(rect.right() - ((ClipItem *) clip)->fadeOut(), rect.y());
+
+            m_animation->setScaleAt(.5, 2, 2);
+            break;
+        case RESIZESTART:
+        case RESIZEEND:
+            polygon << QPoint(0, - size * 2);
+            if (mode == RESIZESTART)
+                polygon << QPoint(size * 2, 0);
+            else
+                polygon << QPoint(- size * 2, 0);
+            polygon << QPoint(0, size * 2);
+            polygon << QPoint(0, - size * 2);
+
+            m_visualTip = new QGraphicsPolygonItem(polygon);
+            ((QGraphicsPolygonItem*) m_visualTip)->setBrush(m_tipColor);
+            ((QGraphicsPolygonItem*) m_visualTip)->setPen(m_tipPen);
+            if (mode == RESIZESTART)
+                m_visualTip->setPos(rect.x(), rect.y() + rect.height() / 2);
+            else
+                m_visualTip->setPos(rect.right(), rect.y() + rect.height() / 2);
+
+            m_animation->setScaleAt(.5, 2, 1);
+            break;
+        case TRANSITIONSTART:
+        case TRANSITIONEND:
+            polygon << QPoint(0, - size * 2);
+            if (mode == TRANSITIONSTART)
+                polygon << QPoint(size * 2, 0);
+            else
+                polygon << QPoint(- size * 2, 0);
+            polygon << QPoint(0, 0);
+            polygon << QPoint(0, - size * 2);
+
+            m_visualTip = new QGraphicsPolygonItem(polygon);
+            ((QGraphicsPolygonItem*) m_visualTip)->setBrush(m_tipColor);
+            ((QGraphicsPolygonItem*) m_visualTip)->setPen(m_tipPen);
+            if (mode == TRANSITIONSTART)
+                m_visualTip->setPos(rect.x(), rect.bottom());
+            else
+                m_visualTip->setPos(rect.right(), rect.bottom());
+
+            m_animation->setScaleAt(.5, 2, 2);
+            break;
+        default:
+            delete m_animation;
+            return;
+        }
+
+        m_visualTip->setFlags(QGraphicsItem::ItemIgnoresTransformations);
+        m_visualTip->setZValue(100);
+        scene()->addItem(m_visualTip);
+        m_animation->setItem(m_visualTip);
+        m_animationTimer->start();
+    }
+}
+
+bool CustomTrackView::hasAudio(int track) const
+{
+    QRectF rect(0, (double)(track * m_tracksHeight + 1), (double) sceneRect().width(), (double)(m_tracksHeight - 1));
+    QList<QGraphicsItem *> collisions = scene()->items(rect, Qt::IntersectsItemBoundingRect);
+    QGraphicsItem *item;
+    for (int i = 0; i < collisions.count(); i++) {
+        item = collisions.at(i);
+        if (!item->isEnabled()) continue;
+        if (item->type() == AVWIDGET) {
+            ClipItem *clip = static_cast <ClipItem *>(item);
+            if (!clip->isVideoOnly() && (clip->clipType() == AUDIO || clip->clipType() == AV || clip->clipType() == PLAYLIST)) return true;
+        }
+    }
+    return false;
+}