Am Donnerstag, 16. März 2006 16:46 schrieb Abdelrazak Younes:
> Georg Baum a écrit :
> > As discussed with Jean-Marc in bugzilla. This is already in.
> > Abdel, am I right that it is not needed for qt4?
>
> I guess not because QWorkArea handle the scrollbar wheelevent directly.
> But you should maybe verify that it's working on par with other Qt4 apps
> if any...
I tested it, and the very same logic as in qt2 is needed, only in a
different place. I am going to commit the attached patch. Log:
* src/frontends/qt4/QWorkArea.C
(QWorkArea::mouseMoveEvent): Use qt wide scroll wheel setting
Georg
PS: We should really have eolstyle native on all source files. I don't
want mixed line endings, but it would be equally awkward for Abdel to use
unix line endings on windows.
Index: src/frontends/qt4/QWorkArea.C
===================================================================
--- src/frontends/qt4/QWorkArea.C (Revision 13407)
+++ src/frontends/qt4/QWorkArea.C (Arbeitskopie)
@@ -389,10 +497,15 @@ void QWorkArea::mouseMoveEvent(QMouseEve
void QWorkArea::wheelEvent(QWheelEvent * e)
{
- verticalScrollBar()->setValue(verticalScrollBar()->value() - e->delta());
- adjustViewWithScrollBar();
+ // Wheel rotation by one notch results in a delta() of 120 (see
+ // documentation of QWheelEvent)
+ int const lines = QApplication::wheelScrollLines() * e->delta() / 120;
+ verticalScrollBar()->setValue(verticalScrollBar()->value() -
+ lines * verticalScrollBar()->lineStep());
+ adjustViewWithScrollBar();
}
+
void QWorkArea::generateSyntheticMouseEvent()
{
// Set things off to generate the _next_ 'pseudo' event.
