C++ (Cpp) QwtPlot::drawCanvas示例

示例#1

文件： qwt_plot_abstract_canvas.cpp 项目： Au-Zone/qwt

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();
}

示例#2

文件： qwt_plot_glcanvas.cpp 项目： CaptainFalco/OpenPilot

/*!
  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();
}

示例#3

文件： plot.cpp 项目： iclosure/jdataanalyse

    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 ) );
    }