Version: (using KDE 4.4.0)
Installed from: Fedora RPMs
The "mouse wheel right" action decreases the volume of a kmix slider (whether in the panel applet or the mixer window). This is counter-intuitive, especially with horizontal sliders - where the slider moves to the right as volume increases.
Expected behavior: Mouse wheel right increases volume, mouse wheel left decreases it.
Probably I cannot fix it at the moment. Qt doesn't seem to indicate the actual wheel in the QWheelEvent: http://doc.qt.nokia.com/latest/qwheelevent.html
I've experimented a little with PyQt and it looks like QWheelEvent::orientation() does what you need.
Does the slider act differently in RTL environments? If so I'd guess you have to check that too.
I guess you are right. I have overlooked the QWheelEvent::orientation(). I'll submit a patch in a minute.
SVN commit 1254110 by esken:
Reverse direction on horizontal QWheelEvents
M +5 -2 kmixdockwidget.cpp
M +1 -1 kmixdockwidget.h
M +8 -3 ksmallslider.cpp
M +6 -1 mdwslider.cpp
WebSVN link: http://websvn.kde.org/?view=rev&revision=1254110
I cannot test it myself due to lack of hardware (horizontal mouse wheel). But it really should work out of the box, so I have directly closed this bug. If I am wrong please reopen teh bug or feel free to contact my via personal email.