Introduce video thumbnail for each frame when zooming at max level (causes slowdown...

[kdenlive] / src / customtrackview.cpp

diff --git a/src/customtrackview.cpp b/src/customtrackview.cpp
index b688d530b28f5bc5bc4413680c5581db4cd20a57..30a681c6202bfcc6bb7d1d64b9de44ab8db3270f 100644 (file)
--- a/src/customtrackview.cpp
+++ b/src/customtrackview.cpp
@@ -130,7 +130,9 @@ CustomTrackView::CustomTrackView(KdenliveDoc *doc, CustomTrackScene* projectscen
     setLineWidth(0);
     //setCacheMode(QGraphicsView::CacheBackground);
     //setViewportUpdateMode(QGraphicsView::FullViewportUpdate);
+    setViewportUpdateMode(QGraphicsView::SmartViewportUpdate);
 
+    pixmapCache = new KPixmapCache("kdenlive-thumbs");
     KdenliveSettings::setTrackheight(m_tracksHeight);
     m_animationTimer = new QTimeLine(800);
     m_animationTimer->setFrameRange(0, 5);
@@ -199,6 +201,7 @@ void CustomTrackView::setContextMenu(QMenu *timeline, QMenu *clip, QMenu *transi
     m_timelineContextMenu = timeline;
     m_timelineContextClipMenu = clip;
     m_clipTypeGroup = clipTypeGroup;
+    connect(m_timelineContextMenu, SIGNAL(aboutToHide()), this, SLOT(slotResetMenuPosition()));
 
     m_markerMenu = new QMenu(i18n("Go to marker..."), this);
     m_markerMenu->setEnabled(false);
@@ -229,6 +232,17 @@ void CustomTrackView::setContextMenu(QMenu *timeline, QMenu *clip, QMenu *transi
     m_timelineContextMenu->addAction(m_editGuide);
 }
 
+void CustomTrackView::slotDoResetMenuPosition()
+{
+    m_menuPosition = QPoint();
+}
+
+void CustomTrackView::slotResetMenuPosition()
+{
+    // after a short time (so that the action is triggered / or menu is closed, we reset the menu pos
+    QTimer::singleShot(300, this, SLOT(slotDoResetMenuPosition()));
+}
+
 void CustomTrackView::checkAutoScroll()
 {
     m_autoScroll = KdenliveSettings::autoscroll();
@@ -2167,6 +2181,7 @@ void CustomTrackView::updateTransition(int track, GenTime pos, QDomElement oldTr
         if (transitionClip && transitionClip->baseClip()) {
             QString size = transitionClip->baseClip()->getProperty("frame_size");
             double factor = transitionClip->baseClip()->getProperty("aspect_ratio").toDouble();
+            if (factor == 0) factor = 1.0;
             p.setX((int)(size.section('x', 0, 0).toInt() * factor + 0.5));
             p.setY(size.section('x', 1, 1).toInt());
         }
@@ -2733,7 +2748,7 @@ void CustomTrackView::slotInsertSpace()
         pos = GenTime((int)(mapToScene(m_menuPosition).x()), m_document->fps());
         track = (int)(mapToScene(m_menuPosition).y() / m_tracksHeight) + 1;
     }
-    SpacerDialog d(GenTime(65, m_document->fps()), m_document->timecode(), track, m_document->tracksCount(), this);
+    SpacerDialog d(GenTime(65, m_document->fps()), m_document->timecode(), track, m_document->tracksCount() + 1, this);
     if (d.exec() != QDialog::Accepted) return;
     GenTime spaceDuration = d.selectedDuration();
     track = d.selectedTrack();
@@ -3557,6 +3572,7 @@ void CustomTrackView::mouseReleaseEvent(QMouseEvent * event)
         if (transitionClip && transitionClip->baseClip()) {
             QString size = transitionClip->baseClip()->getProperty("frame_size");
             double factor = transitionClip->baseClip()->getProperty("aspect_ratio").toDouble();
+            if (factor == 0) factor = 1.0;
             p.setX((int)(size.section('x', 0, 0).toInt() * factor + 0.5));
             p.setY(size.section('x', 1, 1).toInt());
         }
@@ -4175,6 +4191,7 @@ void CustomTrackView::moveTransition(const ItemInfo start, const ItemInfo end, b
         if (transitionClip && transitionClip->baseClip()) {
             QString size = transitionClip->baseClip()->getProperty("frame_size");
             double factor = transitionClip->baseClip()->getProperty("aspect_ratio").toDouble();
+            if (factor == 0) factor = 1.0;
             p.setX((int)(size.section('x', 0, 0).toInt() * factor + 0.5));
             p.setY(size.section('x', 1, 1).toInt());
         }
@@ -4499,8 +4516,8 @@ void CustomTrackView::buildGuidesMenu(QMenu *goMenu) const
     goMenu->clear();
     double fps = m_document->fps();
     for (int i = 0; i < m_guides.count(); i++) {
-       act = goMenu->addAction(m_guides.at(i)->label() + "/" + Timecode::getStringTimecode(m_guides.at(i)->position().frames(fps), fps));
-       act->setData(m_guides.at(i)->position().frames(m_document->fps()));
+        act = goMenu->addAction(m_guides.at(i)->label() + "/" + Timecode::getStringTimecode(m_guides.at(i)->position().frames(fps), fps));
+        act->setData(m_guides.at(i)->position().frames(m_document->fps()));
     }
     goMenu->setEnabled(!m_guides.isEmpty());
 }
@@ -4903,7 +4920,7 @@ void CustomTrackView::pasteClip()
     QPoint position;
     if (m_menuPosition.isNull()) {
         position = mapFromGlobal(QCursor::pos());
-        if (!underMouse() || position.y() > m_tracksHeight * m_document->tracksCount()) {
+        if (!contentsRect().contains(position) || mapToScene(position).y() / m_tracksHeight > m_document->tracksCount()) {
             emit displayMessage(i18n("Cannot paste selected clips"), ErrorMessage);
             return;
         }