Esempio n. 1
0
 void testDiagramOwnership()
 {
     Legend* l = new Legend( m_chart );
     QVERIFY( l->diagrams().size() == 0 );
     l->addDiagram( m_lines );
     QVERIFY( l->diagrams().size() == 1 );
     l->addDiagram( m_bars );
     QVERIFY( l->diagrams().size() == 2 );
     QCOMPARE( dynamic_cast< LineDiagram * >(l->diagram()),  m_lines );
     l->removeDiagram( m_lines );
     QVERIFY( l->diagrams().size() == 1 );
     QCOMPARE( dynamic_cast< BarDiagram * >(l->diagram()),  m_bars );
     l->replaceDiagram( m_lines, m_bars );
     QVERIFY( l->diagrams().size() == 1 );
     QCOMPARE( dynamic_cast< LineDiagram * >(l->diagram()),  m_lines );
 }
Esempio n. 2
0
MainWindow::MainWindow( QWidget* parent ) :
    QWidget( parent )
{
    setupUi( this );

    QHBoxLayout* chartLayout = new QHBoxLayout( chartFrame );
    m_chart = new Chart();
    m_chart->setGlobalLeading( 20,  20,  20,  20 );
    chartLayout->addWidget( m_chart );


    // Initialize the model, and fill it with data
    const int rowCount = 8;
    const int columnCount = 3;
    m_model = new QStandardItemModel(rowCount, columnCount, this);
    m_model->setHeaderData(0, Qt::Horizontal, tr("Product A"));
    m_model->setHeaderData(1, Qt::Horizontal, tr("Product B"));
    m_model->setHeaderData(2, Qt::Horizontal, tr("Product C"));
    openFile(":/Charts/qtdata.cht");

    // Set up the diagram
    m_lines = new LineDiagram();
    // Register the data model at the diagram
    m_lines->setModel( m_model );
    // Add axes to the diagram
    CartesianAxis *xAxis = new CartesianAxis( m_lines );
    CartesianAxis *yAxis = new CartesianAxis ( m_lines );
    xAxis->setPosition ( KDChart::CartesianAxis::Bottom );
    yAxis->setPosition ( KDChart::CartesianAxis::Left );
    m_lines->addAxis( xAxis );
    m_lines->addAxis( yAxis );
    // Make the lines thicker
    for( int iColumn = 0; iColumn < columnCount; ++iColumn ){
        QPen linePen( m_lines->pen( iColumn ) );
        linePen.setWidth( 3 );
        m_lines->setPen( iColumn, linePen );
    }
    // Register the diagram at the coordinate plane
    m_chart->coordinatePlane()->replaceDiagram( m_lines );

    // Add a legend
    Legend* legend = new Legend( m_lines, m_chart );
    legend->setPosition( Position::South );
    legend->setAlignment( Qt::AlignCenter );
    legend->setShowLines( true );
    legend->setTitleText("");
    legend->setOrientation( Qt::Horizontal );
    legend->addDiagram( m_lines );
    m_chart->addLegend( legend );
}