+
+ QRect rect;
+ if (d->mouseButtonPressed && !d->isDragging)
+ {
+ QPoint start, end, initialPressPosition;
+
+ initialPressPosition = d->initialPressPosition;
+
+ initialPressPosition.setY(initialPressPosition.y() - verticalOffset());
+ initialPressPosition.setX(initialPressPosition.x() - horizontalOffset());
+
+ if (d->initialPressPosition.x() > d->mousePosition.x() ||
+ d->initialPressPosition.y() > d->mousePosition.y())
+ {
+ start = d->mousePosition;
+ end = initialPressPosition;
+ }
+ else
+ {
+ start = initialPressPosition;
+ end = d->mousePosition;
+ }
+
+ viewport()->update(d->lastSelectionRect);
+
+ rect = QRect(start, end).intersected(viewport()->rect().adjusted(-16, -16, 16, 16));
+
+ viewport()->update(rect);
+
+ d->lastSelectionRect = rect;
+ }