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Code Issues Releases Wiki Activity

* Don't update seek slider too often, use less cpu.

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This commit is contained in:
Christian Muehlhaeuser 2012-04-07 09:53:01 +02:00
parent ebd59724a5
commit 6d003028c3
1 changed files with 11 additions and 10 deletions
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21
src/audiocontrols.cpp
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@ -93,14 +93,12 @@ AudioControls::AudioControls( QWidget* parent )
ui->metaDataArea->setStyleSheet( "QWidget#metaDataArea {\nborder-width: 4px;\nborder-image: url(" RESPATH "images/now-playing-panel.png) 4 4 4 4 stretch stretch; }" );
ui->seekSlider->setEnabled( true );
ui->seekSlider->setTimeLine( &m_sliderTimeLine );
ui->volumeSlider->setRange( 0, 100 );
ui->volumeSlider->setValue( AudioEngine::instance()->volume() );
m_phononTickCheckTimer.setSingleShot( true );
m_sliderTimeLine.setCurveShape( QTimeLine::LinearCurve );
ui->seekSlider->setTimeLine( &m_sliderTimeLine );
connect( &m_phononTickCheckTimer, SIGNAL( timeout() ), SLOT( phononTickCheckTimeout() ) );
connect( &m_sliderTimeLine, SIGNAL( frameChanged( int ) ), ui->seekSlider, SLOT( setValue( int ) ) );
@ -200,6 +198,7 @@ AudioControls::onPlaybackStarted( const Tomahawk::result_ptr& result )
ui->seekSlider->setRange( 0, duration );
ui->seekSlider->setValue( 0 );
ui->seekSlider->setEnabled( AudioEngine::instance()->canSeek() );
m_phononTickCheckTimer.stop();
@ -208,9 +207,12 @@ AudioControls::onPlaybackStarted( const Tomahawk::result_ptr& result )
m_sliderTimeLine.setFrameRange( 0, duration );
m_sliderTimeLine.setCurrentTime( 0 );
m_seekMsecs = -1;
ui->seekSlider->setVisible( true );
int updateRate = (double)1000 / ( (double)ui->seekSlider->contentsRect().width() / (double)( duration / 1000 ) );
m_sliderTimeLine.setUpdateInterval( qBound( 40, updateRate, 500 ) );
m_noTimeChange = false;
m_lastSliderCheck = 0;
}
@ -380,10 +382,11 @@ AudioControls::onPlaybackTimer( qint64 msElapsed )
if ( sender() != &m_phononTickCheckTimer )
m_phononTickCheckTimer.start( 1000 );
int currentTime = m_sliderTimeLine.currentTime();
if ( m_noTimeChange )
{
if ( m_sliderTimeLine.currentTime() != msElapsed )
if ( currentTime != msElapsed )
{
m_sliderTimeLine.setPaused( true );
m_noTimeChange = false;
@ -392,12 +395,12 @@ AudioControls::onPlaybackTimer( qint64 msElapsed )
m_sliderTimeLine.resume();
}
}
else if ( m_sliderTimeLine.currentTime() >= msElapsed || m_seekMsecs != -1 )
else if ( currentTime >= msElapsed || m_seekMsecs != -1 )
{
m_sliderTimeLine.setPaused( true );
m_noTimeChange = false;
if ( m_sliderTimeLine.currentTime() == msElapsed )
if ( currentTime == msElapsed )
m_noTimeChange = true;
m_sliderTimeLine.setCurrentTime( msElapsed );
@ -407,12 +410,10 @@ AudioControls::onPlaybackTimer( qint64 msElapsed )
}
else if ( m_sliderTimeLine.duration() > msElapsed && m_sliderTimeLine.state() == QTimeLine::NotRunning && AudioEngine::instance()->state() == AudioEngine::Playing )
{
ui->seekSlider->setEnabled( AudioEngine::instance()->canSeek() );
m_sliderTimeLine.start();
}
else if ( m_sliderTimeLine.state() == QTimeLine::Paused && AudioEngine::instance()->state() != AudioEngine::Paused )
{
ui->seekSlider->setEnabled( AudioEngine::instance()->canSeek() );
m_sliderTimeLine.resume();
}