本文整理汇总了C++中QwtPlotCurve::updateLegend方法的典型用法代码示例。如果您正苦于以下问题：C++ QwtPlotCurve::updateLegend方法的具体用法？C++ QwtPlotCurve::updateLegend怎么用？C++ QwtPlotCurve::updateLegend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::updateLegend方法的1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
}