本文整理汇总了C++中QwtPlotCurve::setLegendIconSize方法的典型用法代码示例。如果您正苦于以下问题：C++ QwtPlotCurve::setLegendIconSize方法的具体用法？C++ QwtPlotCurve::setLegendIconSize怎么用？C++ QwtPlotCurve::setLegendIconSize使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类QwtPlotCurve的用法示例。
在下文中一共展示了QwtPlotCurve::setLegendIconSize方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: createDataTabWidget
QTabWidget* ResultsPage::createDataTabWidget()
{
QTabWidget *tabWidget = new QTabWidget;
// Plot
m_plot = new QwtPlot(tabWidget);
m_plot->setCanvasBackground(Qt::white);
m_plot->setContextMenuPolicy(Qt::CustomContextMenu);
m_plot->setAutoReplot(false);
connect(m_plot, SIGNAL(customContextMenuRequested(QPoint)),
this, SLOT(showPlotContextMenu(QPoint)));
// Picker to allow for selection of the closest curve and displays curve
// coordinates with a cross rubber band.
QwtPlotPicker *picker = new QwtPlotPicker(QwtPlot::xBottom, QwtPlot::yLeft,
QwtPicker::CrossRubberBand, QwtPicker::ActiveOnly,
m_plot->canvas());
picker->setStateMachine(new QwtPickerDragPointMachine());
connect(picker, SIGNAL(appended(QPoint)), this, SLOT(pointSelected(QPoint)));
// Legend
QwtLegend* legend = new QwtLegend;
legend->setFrameStyle(QFrame::Box | QFrame::Sunken);
m_plot->insertLegend(legend, QwtPlot::BottomLegend);
#if QWT_VERSION >= 0x060100
connect(m_plot,
SIGNAL(legendDataChanged(QVariant,QList<QwtLegendData>)),
legend,
SLOT(updateLegend(QVariant,QList<QwtLegendData>)));
#endif
// Add the generic curves to the legend
QList<QPair<QString, Qt::GlobalColor> > pairs;
pairs << qMakePair(tr("Unselected Realization"), Qt::darkGray)
<< qMakePair(tr("Selected and Enabled Realization"), Qt::darkGreen)
<< qMakePair(tr("Selected and Disabled Realization"), Qt::darkRed);
QPair<QString, Qt::GlobalColor> pair;
foreach (pair, pairs) {
QwtPlotCurve *curve = new QwtPlotCurve(pair.first);
curve->setLegendIconSize(QSize(32, 8));
curve->setPen(QPen(QBrush(pair.second), 2));
curve->setLegendAttribute(QwtPlotCurve::LegendShowLine);
#if QWT_VERSION < 0x060100
curve->updateLegend(legend);
#else
m_plot->updateLegend(curve);
#endif
}示例2: main
int main( int argc, char **argv )
{
QApplication a( argc, argv );
QwtPlot plot;
plot.setTitle( "Plot Demo" );
plot.setCanvasBackground( Qt::white );
plot.setAxisScale( QwtPlot::xBottom, -1.0, 6.0 );
QwtLegend *legend = new QwtLegend();
legend->setDefaultItemMode( QwtLegendData::Checkable );
plot.insertLegend( legend );
for ( int i = 0; i < 4; i++ )
{
QwtPlotCurve *curve = new QwtPlotCurve();
curve->setRenderHint( QwtPlotItem::RenderAntialiased, true );
curve->setPen( Qt::blue );
QBrush brush;
QwtSymbol::Style style = QwtSymbol::NoSymbol;
QString title;
if ( i == 0 )
{
brush = Qt::magenta;
style = QwtSymbol::Path;
title = "Path";
}
else if ( i == 2 )
{
brush = Qt::red;
style = QwtSymbol::Graphic;
title = "Graphic";
}
else if ( i == 1 )
{
brush = Qt::yellow;
style = QwtSymbol::SvgDocument;
title = "Svg";
}
else if ( i == 3 )
{
brush = Qt::cyan;
style = QwtSymbol::Pixmap;
title = "Pixmap";
}
MySymbol *symbol = new MySymbol( style, brush );
curve->setSymbol( symbol );
curve->setTitle( title );
curve->setLegendAttribute( QwtPlotCurve::LegendShowSymbol, true );
curve->setLegendIconSize( QSize( 15, 18 ) );
QPolygonF points;
points << QPointF( 0.0, 4.4 ) << QPointF( 1.0, 3.0 )
<< QPointF( 2.0, 4.5 ) << QPointF( 3.0, 6.8 )
<< QPointF( 4.0, 7.9 ) << QPointF( 5.0, 7.1 );
points.translate( 0.0, i * 2.0 );
curve->setSamples( points );
curve->attach( &plot );
}
plot.resize( 600, 400 );
plot.show();
return a.exec();
}