void
KMixDockWidget::wheelEvent(QWheelEvent *e)
{
MixDevice *md = 0;
if ( _dockAreaPopup != 0 ) {
md = _dockAreaPopup->dockDevice();
}
if ( md != 0 )
{
Volume vol = md->getVolume();
int inc = vol.maxVolume() / 20;
if ( inc == 0 ) inc = 1;
for ( int i = 0; i < vol.count(); i++ ) {
int newVal = vol[i] + (inc * (e->delta() / 120));
if( newVal < 0 ) newVal = 0;
vol.setVolume( (Volume::ChannelID)i, newVal < vol.maxVolume() ? newVal : vol.maxVolume() );
}
if ( _playBeepOnVolumeChange ) {
_audioPlayer->play();
}
md->getVolume().setVolume(vol);
m_mixer->commitVolumeChange(md);
// refresh the toolTip (Qt removes it on a MouseWheel event)
// Mhhh, it doesn't work. Qt does not show it again.
setVolumeTip();
// Simulate a mouse move to make Qt show the tooltip again
QApplication::postEvent( this, new QMouseEvent( QEvent::MouseMove, QCursor::pos(), Qt::NoButton, Qt::NoButton ) );
}
}
void
KMixDockWidget::createMasterVolWidget()
{
// Reset flags, so that the dock icon will be reconstructed
_oldToolTipValue = -1;
_oldPixmapType = '-';
if (m_mixer == 0) {
// In case that there is no mixer installed, there will be no newVolumeLevels() signal's
// Thus we prepare the dock areas manually
setVolumeTip();
updatePixmap();
return;
}
// create devices
_dockAreaPopup = new ViewDockAreaPopup(0, "dockArea", m_mixer, 0, this);
_dockAreaPopup->createDeviceWidgets();
m_mixer->readSetFromHWforceUpdate(); // after changing the master device, make sure to re-read (otherwise no "changed()" signals might get sent by the Mixer
/* With the recently introduced QSocketNotifier stuff, we can't rely on regular timer updates
any longer. Also the readSetFromHWforceUpdate() won't be enough. As a workaround, we trigger
all "repaints" manually here.
The call to m_mixer->readSetFromHWforceUpdate() is most likely superfluous, even if we don't use QSocketNotifier (e.g. in backends OSS, Solaris, ...)
*/
setVolumeTip();
updatePixmap();
/* We are setting up 3 connections:
* Refreshig the _dockAreaPopup (not anymore neccesary, because ViewBase already does it)
* Refreshing the Tooltip
* Refreshing the Icon
*
*/
// connect( m_mixer, SIGNAL(newVolumeLevels()), _dockAreaPopup, SLOT(refreshVolumeLevels()) );
connect( m_mixer, SIGNAL(newVolumeLevels()), this, SLOT(setVolumeTip() ) );
connect( m_mixer, SIGNAL(newVolumeLevels()), this, SLOT(updatePixmap() ) );
}
/**
* Updates all visual parts of the volume, namely tooltip and pixmap
*/
void KMixDockWidget::refreshVolumeLevels()
{
setVolumeTip();
updatePixmap();
}
