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

0001 /**
0002  * SPDX-FileCopyrightText: 2001-2015 Klaralvdalens Datakonsult AB. All rights reserved.
0003  *
0004  * This file is part of the KD Chart library.
0005  *
0006  * SPDX-License-Identifier: GPL-2.0-or-later
0007  */
0008 
0009 #include "mainwindow.h"
0010 
0011 #include <KChartWidget>
0012 #include <KChartAbstractDiagram>
0013 #include <QDebug>
0014 #include <QMessageBox>
0015 
0016 using namespace KChart;
0017 
0018 MainWindow::MainWindow( QWidget* parent )
0019  : QWidget( parent ), datasetCount( 3 )
0020 {
0021     setupUi( this );
0022 
0023     QHBoxLayout* chartLayout = new QHBoxLayout( chartFrame );
0024     widget = new Widget( chartFrame );
0025     chartLayout->addWidget( widget );
0026 
0027     typeSelector->setCurrentIndex(1); // we start by LineDiagram
0028 
0029     connect( typeSelector, SIGNAL(activated(int)), SLOT(changeType()) );
0030 
0031     connect( btnAddDataset, SIGNAL(clicked()), SLOT(addDataset()) );
0032 
0033     connect( leadingSelector, SIGNAL(valueChanged(int)),
0034              this, SLOT(changeLeading(int)) );
0035 }
0036 
0037 void MainWindow::changeType()
0038 {
0039     QString text = typeSelector->currentText();
0040     if ( text == "Widget::Bar" )
0041         widget->setType( Widget::Bar );
0042     else if ( text == "Widget::Line" )
0043         widget->setType( Widget::Line );
0044     else if ( text == "Widget::Pie" )
0045         widget->setType( Widget::Pie );
0046     else if ( text == "Widget::Polar" )
0047         widget->setType( Widget::Polar );
0048     else
0049         widget->setType( Widget::NoType );
0050 }
0051 
0052 void MainWindow::changeLeading( int leading )
0053 {
0054     widget->setGlobalLeading( leading, leading, leading, leading );
0055 }
0056 
0057 void MainWindow::addDataset()
0058 {
0059     const QStringList parts = lineAddDataset->text().split( ';' );
0060     bool ok;
0061     QVector< qreal > vec;
0062     for  ( const QString &str : parts ) {
0063         const qreal val = str.toDouble( &ok );
0064         if ( ok )
0065             vec.append( val );
0066     }
0067     const int rows = widget->diagram()->model()->rowCount();
0068     if ( vec.count() != rows ) {
0069         QMessageBox::warning( this, "Wrong number of values entered!",
0070                               QString( "You have entered %1 values,<br>but the data model needs %2 ones."
0071                                        "<br><br>Note: Use <b>;</b> to separate the values!" )
0072                                       .arg(vec.count()).arg(rows));
0073     } else {
0074         widget->setDataset( datasetCount++, vec, "user data" );
0075     }
0076 }