Hover for FilesTreeWidget

Hovering over a cover item in FilesTreeWidget shows a HoverWindow with
the scaled image under the cursor.

1 files changed, 69 insertions, 1 deletions

diff --git a/filestreewidget.cpp b/filestreewidget.cpp
index a941612..0dab9a2 100644
--- a/filestreewidget.cpp
+++ b/filestreewidget.cpp
@@ -269,7 +269,10 @@ void FilesTreeWidget::fileSelectionChanged(const QItemSelection &selected, const
 	emit sizeChanged(mSelectedSize);
 }
 
-FilesTreeView::FilesTreeView(QWidget *parent) : QTreeView(parent){}
+FilesTreeView::FilesTreeView(QWidget *parent) : QTreeView(parent){
+	setAttribute(Qt::WA_Hover);
+	mHoverWin = new HoverWindow;
+}
 
 void FilesTreeView::contextMenuEvent(QContextMenuEvent *event){
 	QMenu ctxMenu;
@@ -279,6 +282,71 @@ void FilesTreeView::contextMenuEvent(QContextMenuEvent *event){
 	ctxMenu.exec(event->globalPos());
 }
 
+bool FilesTreeView::event(QEvent *e){
+	QModelIndex curIdx;
+	QHoverEvent *hEvent = static_cast<QHoverEvent*>(e);
+	QPoint hotSpot(hEvent->pos().x(), hEvent->pos().y() - SmGlobals::instance()->cursorOffset());
+	QPoint globalPos = mapToGlobal(hotSpot);
+	QPoint where = globalPos + QPoint(30, 0);
+
+	curIdx = indexAt(hotSpot);
+	if((e->type() == QEvent::HoverEnter) || (e->type() == QEvent::HoverMove)){
+		if(!curIdx.isValid()){
+			return true;
+		}
+		if(!curIdx.column() == 0){
+			mCurHover = QModelIndex();
+			mHoverWin->setVisible(false);
+			return true;
+		}
+		if(!curIdx.isValid()){
+			return true;
+		}
+		QVariant fileType = curIdx.data(FilesTreeModel::FileTypeRole);
+		if(!fileType.isValid()){
+			mHoverWin->setVisible(false);
+			return true;
+		}
+		if(fileType.toInt() == FilesTreeModel::Movie){
+			mHoverWin->setVisible(false);
+			return true;
+		}
+	}
+
+	if(e->type() == QEvent::HoverEnter){
+		mCurHover = curIdx;
+		QPixmap pm = QPixmap(curIdx.data(FilesTreeModel::FullPathRole).toString());
+		mHoverWin->setPixmap(pm);
+		if(mHoverWin->pixmapHeight()){
+			where = QPoint(where.x(), where.y() - mHoverWin->pixmapHeight() / 2);
+		}
+		mHoverWin->move(where);
+		mHoverWin->setVisible(true);
+		return true;
+	}
+	if(e->type() == QEvent::HoverMove){
+		if(mHoverWin->pixmapHeight()){
+			where = QPoint(where.x(), where.y() - mHoverWin->pixmapHeight() / 2);
+		}
+		if(curIdx != mCurHover){
+			mCurHover = curIdx;
+			mHoverWin->setPixmap(QPixmap(curIdx.data(FilesTreeModel::FullPathRole).toString()));
+			mHoverWin->setVisible(false);
+			mHoverWin->move(where);
+			mHoverWin->setVisible(true);
+			return true;
+		}else{
+			mHoverWin->move(where);
+			return true;
+		}
+	}
+	if(e->type() == QEvent::HoverLeave){
+		mHoverWin->setVisible(false);
+		return true;
+	}
+	return QTreeView::event(e);
+}
+
 FilesTreeSortModel::FilesTreeSortModel(QObject *parent) : QSortFilterProxyModel(parent) {}
 
 bool FilesTreeSortModel::lessThan(const QModelIndex &left, const QModelIndex &right) const{