void KNMusicStandardBackend::previewPlay()
{
//If the origial volume is not -1, means smart volume has been turned on.
if(m_originalVolume==-1)
{
//Turn on the smart volume.
smartVolumeOn();
}
//Play the preview thread.
threadPlay(m_preview);
}
void KNMusicStandardBackend::playPreviewSection(const QString &fileName,
const qint64 &start,
const qint64 &duration)
{
//Load the music file first.
loadPreview(fileName);
//Turn on the smart volume.
smartVolumeOn();
//Play the section
m_preview->playSection(start, duration);
}
inline void KNMusicStandardBackend::synchronizeThreadVolume(const int &volume)
{
//Check whether the preview smart volume is enabled.
bool smartVolumeEnabled=(m_originalVolume!=-1);
//If the smart volume is enabled, disabled it temporarily.
if(smartVolumeEnabled)
{
//Turn off the smart volume.
smartVolumeOff();
}
//Change the global volume size.
setGlobalVolume(volume);
//If the smart volume is enabled before, enabled it again.
if(smartVolumeEnabled)
{
//Turn on the smart volume.
smartVolumeOn();
}
}
void KNMusicStandardBackend::playPreview()
{
smartVolumeOn();
//Play the preview.
m_preview->play();
}
