File indexing completed on 2025-02-16 04:03:08

 /**
  * 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 "mainwindow.h"
 
 #include <KChartChart>
 #include <KChartAbstractCoordinatePlane>
 #include <KChartLineDiagram>
 #include <KChartLegend>
 
 #include <QDebug>
 #include <QPainter>
 
 using namespace KChart;
 
 MainWindow::MainWindow( QWidget* parent ) :
     QWidget( parent )
 {
     setupUi( this );
 
     QHBoxLayout* chartLayout = new QHBoxLayout( chartFrame );
     m_chart = new Chart();
     m_chart->setGlobalLeadingTop( 10 );
     m_chart->setGlobalLeadingRight( 10 );
     chartLayout->addWidget( m_chart );
     hSBar->setVisible( false );
     vSBar->setVisible( false );
 
     m_model.loadFromCSV( ":/data" );
 
     // Set up the diagram
     m_lines = new LineDiagram();
     m_lines->setModel( &m_model );
 
     CartesianAxis *xAxis = new CartesianAxis( m_lines );
     CartesianAxis *yAxis = new CartesianAxis ( m_lines );
     xAxis->setPosition ( KChart::CartesianAxis::Bottom );
     yAxis->setPosition ( KChart::CartesianAxis::Left );
 
     xAxis->setTitleText ( "Abscissa axis at the bottom" );
     yAxis->setTitleText ( "Ordinate axis at the left side" );
 
     m_lines->addAxis( xAxis );
     m_lines->addAxis( yAxis );
     m_chart->coordinatePlane()->replaceDiagram( m_lines );
 
     connect( m_chart, SIGNAL(propertiesChanged()), SLOT(applyNewZoomParameters()) );
 
     // Set up the legend
     m_legend = new Legend( m_lines, m_chart );
     m_chart->addLegend( m_legend );
     m_legend->setPosition( KChartEnums::PositionEast );
     m_legend->setAlignment( Qt::AlignTop );
 }
 
 
 void MainWindow::on_zoomFactorSB_valueChanged( double factor )
 {
     if ( factor > 1 ) {
         hSBar->setVisible( true );
         vSBar->setVisible( true );
     } else {
         hSBar->setValue( 500 );
         vSBar->setValue( 500 );
         hSBar->setVisible( false );
         vSBar->setVisible( false );
     }
     m_chart->coordinatePlane()->setZoomFactorX( factor );
     m_chart->coordinatePlane()->setZoomFactorY( factor );
     m_chart->update();
 }
 
 void MainWindow::on_adjustGridCB_toggled( bool checked )
 {
     static_cast <CartesianCoordinatePlane*>( m_chart->coordinatePlane() )
             ->setAutoAdjustGridToZoom( checked );
     m_chart->update();
 }
 
 void MainWindow::on_rubberBandZoomCB_toggled( bool checked )
 {
     m_chart->coordinatePlane()->setRubberBandZoomingEnabled( checked );
 }
 
 void MainWindow::on_hSBar_valueChanged( int hPos )
 {
     m_chart->coordinatePlane()->setZoomCenter( QPointF(hPos/1000.0, vSBar->value()/1000.0) );
     m_chart->update();
 }
 
 void MainWindow::on_vSBar_valueChanged( int vPos )
 {
     m_chart->coordinatePlane()->setZoomCenter( QPointF( hSBar->value()/1000.0, vPos/1000.0) );
     m_chart->update();
 }
 
 void MainWindow::applyNewZoomParameters()
 {
     hSBar->blockSignals( true );
     vSBar->blockSignals( true );
 
     hSBar->setValue( qRound( m_chart->coordinatePlane()->zoomCenter().x() * 1000 ) );
     vSBar->setValue( qRound( m_chart->coordinatePlane()->zoomCenter().y() * 1000 ) );
     zoomFactorSB->setValue( m_chart->coordinatePlane()->zoomFactorX() );
 
     hSBar->blockSignals( false );
     vSBar->blockSignals( false );
 }