void QwtPlotAbstractCanvas::drawCanvas( QPainter *painter )
{
QWidget *w = canvasWidget();
painter->save();
if ( !d_data->styleSheet.borderPath.isEmpty() )
{
painter->setClipPath(
d_data->styleSheet.borderPath, Qt::IntersectClip );
}
else
{
if ( borderRadius() > 0.0 )
{
const QRect frameRect = w->property( "frameRect" ).toRect();
painter->setClipPath( borderPath2( frameRect ), Qt::IntersectClip );
}
else
{
painter->setClipRect( w->contentsRect(), Qt::IntersectClip );
}
}
QwtPlot *plot = qobject_cast< QwtPlot *>( w->parent() );
if ( plot )
plot->drawCanvas( painter );
painter->restore();
}
/*!
Draw the plot items
\param painter Painter
\sa QwtPlot::drawCanvas()
*/
void QwtPlotGLCanvas::drawItems( QPainter *painter )
{
painter->save();
painter->setClipRect( contentsRect(), Qt::IntersectClip );
QwtPlot *plot = qobject_cast< QwtPlot *>( parent() );
if ( plot )
plot->drawCanvas( painter );
painter->restore();
}
virtual void paintEvent( QPaintEvent *event )
{
QPainter painter( this );
painter.setClipRegion( event->region() );
QwtPlot *plot = qobject_cast< QwtPlot *>( parent() );
if ( plot )
plot->drawCanvas( &painter );
painter.setPen( palette().foreground().color() );
painter.drawRect( rect().adjusted( 0, 0, -1, -1 ) );
}