C++ (Cpp) QwtPlotItem::testRenderHint Examples

Example #1

File: qwt_plot.cpp Project: AleksandraPalosz/ecg_holter

void QwtPlot::drawItems( QPainter *painter, const QRectF &canvasRect,
        const QwtScaleMap maps[axisCnt] ) const
{
    const QwtPlotItemList& itmList = itemList();
    for ( QwtPlotItemIterator it = itmList.begin();
        it != itmList.end(); ++it )
    {
        QwtPlotItem *item = *it;
        if ( item && item->isVisible() )
        {
            painter->save();

            painter->setRenderHint( QPainter::Antialiasing,
                item->testRenderHint( QwtPlotItem::RenderAntialiased ) );
            painter->setRenderHint( QPainter::HighQualityAntialiasing,
                item->testRenderHint( QwtPlotItem::RenderAntialiased ) );

            item->draw( painter,
                maps[item->xAxis()], maps[item->yAxis()],
                canvasRect );

            painter->restore();
        }
    }
}

Example #2

File: qwt_plot.cpp Project: DTUautopilot/qgroundcontrol

void QwtPlot::drawItems(QPainter *painter, const QRect &rect, 
        const QwtScaleMap map[axisCnt], 
        const QwtPlotPrintFilter &pfilter) const
{
    const QwtPlotItemList& itmList = itemList();
    for ( QwtPlotItemIterator it = itmList.begin();
        it != itmList.end(); ++it )
    {
        QwtPlotItem *item = *it;
        if ( item && item->isVisible() )
        {
            if ( !(pfilter.options() & QwtPlotPrintFilter::PrintGrid)
                && item->rtti() == QwtPlotItem::Rtti_PlotGrid )
            {
                continue;
            }

            painter->save();

#if QT_VERSION >= 0x040000
            painter->setRenderHint(QPainter::Antialiasing,
                item->testRenderHint(QwtPlotItem::RenderAntialiased) );
#endif

            item->draw(painter, 
                map[item->xAxis()], map[item->yAxis()],
                rect);

            painter->restore();
        }
    }
}

Example #3

File: qwt_plot.cpp Project: BackupTheBerlios/qtiplot-svn

void QwtPlot::drawItems(QPainter *painter, const QRect &rect, 
        const QwtArray<QwtScaleMap> &map, 
        const QwtPlotPrintFilter &pfilter) const
{
    painter->save();

    const QwtPlotItemList& itmList = itemList();
    for ( QwtPlotItemIterator it = itmList.begin();
        it != itmList.end(); ++it )
    {
        QwtPlotItem *item = *it;
        if ( item && item->isVisible() )
        {
            if ( !(pfilter.options() & QwtPlotPrintFilter::PrintGrid)
                && item->rtti() == QwtPlotItem::Rtti_PlotGrid )
            {
                continue;
            }

#if QT_VERSION >= 0x040000
            const QPaintEngine *pe = painter->device()->paintEngine();
            if (pe->hasFeature(QPaintEngine::Antialiasing) )
            {
                painter->setRenderHint(QPainter::Antialiasing,
                    item->testRenderHint(QwtPlotItem::RenderAntialiased) );
            }
#endif

            item->draw(painter, 
                map[item->xAxis()], map[item->yAxis()],
                rect);
        }
    }

    painter->restore();
}