AbstractChatView(),
_bufferContainer(0),
_currentScaleFactor(1),
- _invalidateFilter(false),
- _verticalOffset(0),
- _verticalOffsetStable(false)
+ _invalidateFilter(false)
{
QList<BufferId> filterList;
filterList.append(bufferId);
verticalScrollBar()->setValue(verticalScrollBar()->maximum());
}
-// Workaround for QTBUG-6322
-// The viewport rect gets some margins where it shouldn't, resulting in scrollbars to appear
void ChatView::adjustSceneRect() {
- QRectF rect = scene()->sceneRect(); // qDebug() << "sceneRect" << rect;
- if(rect.height() <= viewport()->height()) {
- setSceneRect(rect);
- return;
- }
-
- if(_verticalOffsetStable && rect.height() > viewport()->height())
- setSceneRect(rect.adjusted(0, 0, 0, _verticalOffset));
- else
- setSceneRect(rect);
-
- QScrollBar *vbar = verticalScrollBar();
- qreal sceneHeight = rect.height();
- qreal viewHeight = vbar->maximum() + viewport()->height() - vbar->minimum();
- if(sceneHeight != viewHeight) {
- qreal voffset = sceneHeight - viewHeight; //voffset *= _currentScaleFactor;
- // qDebug() << "Adjusting ChatView offset to" << voffset << "(QTBUG-6322)";
- if(sceneHeight + voffset <= viewport()->height()) {
- setSceneRect(rect.adjusted(0, -voffset, 0, 0));
- _verticalOffsetStable = false;
- return;
- } else {
- _verticalOffsetStable = true;
- _verticalOffset = voffset;
- setSceneRect(rect.adjusted(0, 0, 0, voffset));
- }
- if(vbar->maximum() + viewport()->height() - vbar->minimum() != sceneHeight) {
- //qWarning() << "Workaround for QTBUG-6322 failed!1!!" << vbar->maximum() + viewport()->height() - vbar->minimum() << sceneHeight;
- _verticalOffsetStable = false;
- adjustSceneRect();
- return;
- }
- if(voffset == _verticalOffset)
- _verticalOffsetStable = true;
- else {
- //if(voffset <= 0)
- _verticalOffset = voffset;
- }
- } //else
- //_verticalOffsetStable = true;
+ // Workaround for QTBUG-6322
+ // If the viewport's sceneRect() is (almost) as wide as as the viewport itself,
+ // Qt wants to reserve space for scrollbars even if they're turned off, resulting in
+ // an ugly white space at the bottom of the ChatView.
+ // Since the view's scene's width actually doesn't matter at all, we just adjust it
+ // by some hopefully large enough value to avoid this problem.
+
+ setSceneRect(scene()->sceneRect().adjusted(0, 0, -25 ,0));
}
void ChatView::mouseMoveWhileSelecting(const QPointF &scenePos) {