File indexing completed on 2024-11-24 03:57:53

 /**
  * 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 <KChartLegend>
 #include <KChartCartesianAxis>
 #include <QColorDialog>
 
 using namespace KChart;
 
 MainWindow::MainWindow( QWidget *parent )
     : QWidget( parent )
     , m_chart( new Chart() )
     , m_diagram( m_chart )
 {
     setupUi( this );
 
     m_HLCModel.loadFromCSV( ":/HLC" );
     m_OHLCModel.loadFromCSV( ":/OHLC" );
 
     m_diagram.setType( StockDiagram::HighLowClose );
     m_diagram.setModel( &m_HLCModel );
     m_chart->coordinatePlane()->replaceDiagram( &m_diagram );
     KChart::Legend* legend  = new KChart::Legend( &m_diagram, m_chart );
     m_chart->addLegend( legend );
 
     QHBoxLayout* chartLayout = new QHBoxLayout( chartFrame );
     chartLayout->addWidget( m_chart );
 
     // Abscissa
     CartesianAxis *leftAxis = new CartesianAxis( &m_diagram );
     // Ordinate
     CartesianAxis *bottomAxis = new CartesianAxis( &m_diagram );
 
     leftAxis->setPosition( CartesianAxis::Left );
 
     TextAttributes attributes = bottomAxis->textAttributes();
     attributes.setRotation( 90 );
     attributes.setFontSize( Measure( 7.0, KChartEnums::MeasureCalculationModeAbsolute ) );
     bottomAxis->setTextAttributes( attributes );
     bottomAxis->setPosition( CartesianAxis::Bottom );
     m_diagram.addAxis( leftAxis );
     m_diagram.addAxis( bottomAxis );
     m_diagram.addAxis( bottomAxis );
     applyColor( QColor( "chartreuse" ) );
     const bool connected = connect( colorChooser, SIGNAL(clicked()), SLOT(chooseColor()) );
     Q_ASSERT( connected );
     Q_UNUSED( connected );
 
     // Initialize all values for the stock chart to sane defaults
     initValues();
 }
 
 void MainWindow::chooseColor()
 {
     applyColor( QColorDialog::getColor( m_diagram.brush().color(), this ) );
 }
 
 void MainWindow::applyColor(const QColor &color)
 {
     if ( color.isValid() ) {
         m_diagram.setPen( 0, QPen( color.darker( 130 ) ) );
         m_diagram.setBrush( 0, QBrush( color ) );
         QColor inverse( 255 - color.red(), 255 - color.green(), 255 - color.blue() );
         m_diagram.setPen( 1, QPen( inverse.darker( 130 ) ) );
         m_diagram.setBrush( 1, QBrush( inverse ) );
         QPalette pal = colorChooser->palette();
         pal.setBrush( QPalette::Button, QBrush( color ) );
         colorChooser->setPalette( pal );
     }
 }
 
 void MainWindow::initValues()
 {
     m_threeDBarAttributes = m_diagram.threeDBarAttributes();
     m_threeDBarAttributes.setDepth( 10.0 );
     m_threeDBarAttributes.setUseShadowColors( false );
     threeDProperties->setChecked( m_threeDBarAttributes.isEnabled() );
     perspectiveAngle->setValue( m_threeDBarAttributes.angle() );
     perspectiveDepth->setValue( (int)m_threeDBarAttributes.depth() );
     useShadowColors->setChecked( m_threeDBarAttributes.useShadowColors() );
     m_diagram.setThreeDBarAttributes( m_threeDBarAttributes );
 }
 
 void MainWindow::on_threeDProperties_toggled( bool checked )
 {
     m_threeDBarAttributes.setEnabled( checked );
     m_diagram.setThreeDBarAttributes( m_threeDBarAttributes );
     m_chart->update();
 }
 
 void MainWindow::on_perspectiveAngle_valueChanged( int value )
 {
     m_threeDBarAttributes.setAngle( value );
     m_diagram.setThreeDBarAttributes( m_threeDBarAttributes );
     m_chart->update();
 }
 
 void MainWindow::on_perspectiveDepth_valueChanged( int value )
 {
     m_threeDBarAttributes.setDepth( value );
     m_diagram.setThreeDBarAttributes( m_threeDBarAttributes );
     m_chart->update();
 }
 
 void MainWindow::on_useShadowColors_toggled( bool checked )
 {
     m_threeDBarAttributes.setUseShadowColors( checked );
     m_diagram.setThreeDBarAttributes( m_threeDBarAttributes );
     m_chart->update();
 }
 
 void MainWindow::on_stockTypeCB_currentIndexChanged( const QString &text )
 {
     // FIXME: Workaround for disappearing diagram when setting new model
     m_chart->coordinatePlane()->takeDiagram( &m_diagram );
 
     if ( text == "High-Low-Close" ) {
         m_diagram.setType( StockDiagram::HighLowClose );
         m_diagram.setModel( &m_HLCModel );
     } else if ( text == "Open-High-Low-Close" ) {
         m_diagram.setType( StockDiagram::OpenHighLowClose );
         m_diagram.setModel( &m_OHLCModel );
     } else if ( text == "Candlestick" ) {
         m_diagram.setType( StockDiagram::Candlestick );
         m_diagram.setModel( &m_OHLCModel );
     }
 
     m_chart->coordinatePlane()->replaceDiagram( &m_diagram );
 }