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/**
* SPDX-FileCopyrightText: 2001-2015 Klaralvdalens Datakonsult AB. All rights reserved.
*
* This file is part of the KD Chart library.
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include <QApplication>
#include <QStandardItemModel>
#include <QWidget>
#include <KChartChart>
#include <KChartBarDiagram>
#include <KChartHeaderFooter>
#include <KChartPosition>
#include <KChartBackgroundAttributes>
#include <KChartFrameAttributes>
#include <QPixmap>
using namespace KChart;
class ChartWidget : public QWidget {
Q_OBJECT
public:
explicit ChartWidget(QWidget* parent = nullptr)
: QWidget(parent)
{
m_model.insertRows( 0, 2, QModelIndex() );
m_model.insertColumns( 0, 3, QModelIndex() );
for (int row = 0; row < 3; ++row) {
for (int column = 0; column < 3; ++column) {
QModelIndex index = m_model.index(row, column, QModelIndex());
m_model.setData(index, QVariant(row+1 * column) );
}
}
QPixmap* pixmap = new QPixmap ( "background.png" );
BarDiagram* diagram = new BarDiagram;
diagram->setModel(&m_model);
m_chart.coordinatePlane()->replaceDiagram(diagram);
// Add at one Header and set it up
HeaderFooter* header = new HeaderFooter( &m_chart );
header->setPosition( Position::North );
header->setText( "A Simple Bar Chart" );
m_chart.addHeaderFooter( header );
// Configure the Header text attributes
TextAttributes hta;
hta.setPen( QPen( Qt::blue ) );
// let the header resize itself
// together with the widget.
// so-called relative size
Measure m( 35.0 );
m.setRelativeMode( header->autoReferenceArea(),
KChartEnums::MeasureOrientationMinimum );
hta.setFontSize( m );
// min font size
m.setValue( 3.0 );
m.setCalculationMode( KChartEnums::MeasureCalculationModeAbsolute );
hta.setMinimalFontSize( m );
header->setTextAttributes( hta );
// Configure the plane's Background
BackgroundAttributes pba;
pba.setPixmap( *pixmap );
pba.setPixmapMode( BackgroundAttributes::BackgroundPixmapModeStretched );
pba.setVisible( true );
diagram->coordinatePlane()->setBackgroundAttributes( pba );
// Configure the Header's Background
BackgroundAttributes hba;
hba.setBrush( Qt::white );
hba.setVisible( true );
header->setBackgroundAttributes( hba );
// Configure the plane Frame attributes
FrameAttributes pfa;
pfa.setPen( QPen ( QBrush( Qt::blue ), 2 ) );
pfa.setVisible( true );
diagram->coordinatePlane()->setFrameAttributes( pfa );
// Configure the header Frame attributes
FrameAttributes hfa;
hfa.setPen( QPen ( QBrush( Qt::darkGray ), 2 ) );
hfa.setPadding( 2 );
hfa.setVisible( true );
header->setFrameAttributes( hfa );
QVBoxLayout* l = new QVBoxLayout(this);
l->addWidget(&m_chart);
setLayout(l);
}
private:
Chart m_chart;
QStandardItemModel m_model;
QPixmap pixmap;
};
int main( int argc, char** argv ) {
QApplication app( argc, argv );
ChartWidget w;
w.show();
return app.exec();
}
#include "main.moc"
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