/*!
Returns the pixel position relative to the reference position for
given time \a value
*/
double UiTimeAxis::timeToPixelRelativeRef(double value)
{
return timeToPixel(value-mRangeLower) + infoWidth();
}
void timelineWidget::paintEvent( QPaintEvent * )
{
if( jLib::math::fcmp( timeInView( ), 0 ) )
{
if( endTime() != jLib::floatLimits::infinity() &&
beginTime() != jLib::floatLimits::infinity() )
{
timeInView( endTime() - beginTime() );
viewCentre( ( endTime() + beginTime() ) / 2 );
}
else
{
timeInView( 10 );
viewCentre( 5 );
}
}
QPainter painter(this);
painter.setRenderHint( QPainter::Antialiasing, TRUE );
if( timeInView() > ( endTime( ) - beginTime( ) ) )
{
timeInView( endTime( ) - beginTime( ) );
}
JFLOAT realBeginDrawing = viewCentre() - ( timeInView()/2 );
JFLOAT realEndDrawing = viewCentre() + ( timeInView()/2 );
if( realEndDrawing > endTime() )
{
realEndDrawing = endTime( );
realBeginDrawing = endTime( ) - timeInView( );
viewCentre( endTime( ) - ( timeInView()/2 ) );
}
if( realBeginDrawing < beginTime() )
{
realBeginDrawing = beginTime( );
realEndDrawing = beginTime( ) + timeInView( );
viewCentre( beginTime( ) + ( timeInView()/2 ) );
}
JFLOAT timeSpikeIntervals[] = { 0.125, 0.25, 0.5, 1, 1.25, 2.5, 5, 10, 50 };
JFLOAT timeSpikeInterval = jLib::floatLimits::nan();
JFLOAT minDist = jLib::floatLimits::infinity();
for( int x=0; x<9; x++ )
{
JFLOAT size = timeToPixel( timeSpikeIntervals[x], 0, ( realEndDrawing - realBeginDrawing ), width() );
if( ( size - 50.0 ) < minDist )
{
timeSpikeInterval = timeSpikeIntervals[x];
minDist = size;
}
}
if( timeSpikeInterval != timeSpikeInterval )
{
timeSpikeInterval = 1.0;
}
JFLOAT beginDrawing = realBeginDrawing - fmod( realBeginDrawing, timeSpikeInterval ) - 1;
JFLOAT endDrawing = realEndDrawing + ( timeSpikeInterval - fmod( realEndDrawing, timeSpikeInterval ) );
painter.setPen( QApplication::palette().color( QPalette::Text ) );
for( JFLOAT x=( beginDrawing - timeSpikeInterval ); x<=endDrawing; x+=timeSpikeInterval )
{
JFLOAT actualTime = x + 1;
JFLOAT xMidPos = timeToPixel( actualTime + ( 0.5 * timeSpikeInterval ), realBeginDrawing, realEndDrawing, width() );
painter.drawLine( QPointF( xMidPos, height() ), QPointF( xMidPos, height() - minorTimeHeight() ) );
JFLOAT xPos = timeToPixel( actualTime, realBeginDrawing, realEndDrawing, width() );
painter.drawText( (int)(xPos+2), (int)(height() - majorTimeHeight()-5), formatTime( actualTime ) );
painter.drawLine( QPointF( xPos, height() ), QPointF( xPos, height() - majorTimeHeight() ) );
}
QColor clipColourA( QApplication::palette().color( QPalette::Shadow ) );
clipColourA.setAlpha( 200 );
QColor clipColourB( QApplication::palette().color( QPalette::Shadow ) );
clipColourB.setAlpha(100 );
QLinearGradient clipGrad( 0, 0, 0, height() );
clipGrad.setColorAt( 0.0, clipColourA );
clipGrad.setColorAt( 1.0, clipColourB );
QPen clipLine( QApplication::palette().color( QPalette::Shadow ) );
clipLine.setWidthF( 1.5 );
if( clipBegin() > realBeginDrawing )
{
JFLOAT clipBeginPix = timeToPixel( clipBegin(), realBeginDrawing, realEndDrawing, width() );
painter.setPen( Qt::transparent );
painter.setBrush( clipGrad );
painter.drawRect( 0, 0, (int)clipBeginPix, (int)height() );
painter.setPen( clipLine );
painter.drawLine( (int)(clipBeginPix+1), 0, (int)(clipBeginPix+1), height() );
}
if( clipEnd() < realEndDrawing )
{
JFLOAT clipEndPix = timeToPixel( clipEnd(), realBeginDrawing, realEndDrawing, width() );
if( clipEndPix < 0 )
{
clipEndPix = 0;
}
painter.setPen( Qt::transparent );
painter.setBrush( clipGrad );
painter.drawRect( (int)clipEndPix, 0, width(), height() );
painter.setPen( clipLine );
painter.drawLine( (int)clipEndPix, 0, (int)clipEndPix, height() );
}
JFLOAT now = timeToPixel( currentTime(), realBeginDrawing, realEndDrawing, width() );
QColor nowColour = QApplication::palette().color( QPalette::Highlight );
nowColour.setAlpha( 200 );
QPen nowPen( nowColour );
nowPen.setWidthF( 2.5 );
painter.setPen( nowPen );
painter.drawLine( QPointF( now, 0 ), QPointF( now, height() ) );
painter.setPen( QApplication::palette().color( QPalette::Text ) );
painter.drawText( (int)(now+2), (int)(height() - majorTimeHeight()-20), formatTime( currentTime() ) );
nowColour.setAlpha( 150 );
QLinearGradient highlight( now, 0, now-_nowGradientSpread, 0 );
highlight.setColorAt(0, nowColour );
highlight.setColorAt(1, Qt::transparent );
painter.fillRect( QRectF( now-_nowGradientSpread, 0, _nowGradientSpread, height() ), highlight );
}
