+void ProjectListView::mouseDoubleClickEvent(QMouseEvent * event)
+{
+ QTreeWidgetItem *it = itemAt(event->pos());
+ if (!it) {
+ emit pauseMonitor();
+ emit addClip();
+ return;
+ }
+ ProjectItem *item;
+ if (it->type() == PROJECTFOLDERTYPE) {
+ if ((columnAt(event->pos().x()) == 0)) {
+ QPixmap pix = qVariantValue<QPixmap>(it->data(0, Qt::DecorationRole));
+ int offset = pix.width() + indentation();
+ if (event->pos().x() < offset) {
+ it->setExpanded(!it->isExpanded());
+ event->accept();
+ } else QTreeWidget::mouseDoubleClickEvent(event);
+ }
+ return;
+ }
+ if (it->type() == PROJECTSUBCLIPTYPE) {
+ // subitem
+ if ((columnAt(event->pos().x()) == 1)) {
+ QTreeWidget::mouseDoubleClickEvent(event);
+ return;
+ }
+ item = static_cast <ProjectItem *>(it->parent());
+ } else item = static_cast <ProjectItem *>(it);
+
+ if (!(item->flags() & Qt::ItemIsDragEnabled)) return;
+
+ int column = columnAt(event->pos().x());
+ if (column == 0 && (item->clipType() == SLIDESHOW || item->clipType() == TEXT || item->clipType() == COLOR || it->childCount() > 0)) {
+ QPixmap pix = qVariantValue<QPixmap>(it->data(0, Qt::DecorationRole));
+ int offset = pix.width() + indentation();
+ if (item->parent()) offset += indentation();
+ if (it->childCount() > 0) {
+ if (offset > event->pos().x()) {
+ it->setExpanded(!it->isExpanded());
+ event->accept();
+ return;
+ }
+ } else if (pix.isNull() || offset < event->pos().x()) {
+ QTreeWidget::mouseDoubleClickEvent(event);
+ return;
+ }
+ }
+ if ((column == 1) && it->type() != PROJECTSUBCLIPTYPE) {
+ QTreeWidget::mouseDoubleClickEvent(event);
+ return;