Files
qwt/examples/legends/MainWindow.cpp
2023-10-31 09:22:42 +01:00

70 lines
1.8 KiB
C++

/*****************************************************************************
* Qwt Examples - Copyright (C) 2002 Uwe Rathmann
* This file may be used under the terms of the 3-clause BSD License
*****************************************************************************/
#include "Plot.h"
#include "Panel.h"
#include "MainWindow.h"
#include <QwtPlotRenderer>
#include <QToolBar>
#include <QToolButton>
#include <QLayout>
MainWindow::MainWindow( QWidget* parent )
: QMainWindow( parent )
{
m_plot = new Plot();
Settings settings;
settings.legend.isEnabled = true;
settings.legend.position = QwtPlot::BottomLegend;
settings.legendItem.isEnabled = false;
settings.legendItem.numColumns = 1;
settings.legendItem.alignment = Qt::AlignRight | Qt::AlignVCenter;
settings.legendItem.backgroundMode = 0;
settings.legendItem.size = m_plot->canvas()->font().pointSize();
settings.curve.numCurves = 4;
settings.curve.title = "Curve";
m_panel = new Panel();
m_panel->setSettings( settings );
QWidget* box = new QWidget( this );
QHBoxLayout* layout = new QHBoxLayout( box );
layout->addWidget( m_plot, 10 );
layout->addWidget( m_panel );
setCentralWidget( box );
QToolBar* toolBar = new QToolBar( this );
QToolButton* btnExport = new QToolButton( toolBar );
btnExport->setText( "Export" );
toolBar->addWidget( btnExport );
addToolBar( toolBar );
updatePlot();
connect( m_panel, SIGNAL(edited()), SLOT(updatePlot()) );
connect( btnExport, SIGNAL(clicked()), SLOT(exportPlot()) );
}
void MainWindow::updatePlot()
{
m_plot->applySettings( m_panel->settings() );
}
void MainWindow::exportPlot()
{
QwtPlotRenderer renderer;
renderer.exportTo( m_plot, "legends.pdf" );
}
#include "moc_MainWindow.cpp"