MainWindow::MainWindow( QWidget* parent ) :
QWidget( parent )
{
setupUi( this );
m_chartLayout = new QHBoxLayout( chartFrame );
m_chart = new KDChart::Chart();
m_chartLayout->addWidget( m_chart );
// add a small left-side leading because we use a coloured Y axis background
m_chart->setGlobalLeadingLeft( 1 );
initializeDataModel();
// register our own serializer for saving / loading the Y axis:
KDChart::registerElementSerializer<
AdjustedCartesianAxisSerializer,
AdjustedCartesianAxis >( 0 ); // will be un-registered in ~Mainwindow()
// Set up the diagrams
KDChart::LineDiagram* lines = new KDChart::LineDiagram();
lines->setModel( m_model );
// increase the line width
for ( int iRow = 0; iRow < lines->model()->rowCount(); ++iRow ) {
QPen pen( lines->pen( iRow ) );
pen.setWidth(2);
pen.setColor( pen.color().dark(133) );
lines->setPen( iRow, pen );
}
// Assign some axes
KDChart::CartesianAxis *xAxis = new KDChart::CartesianAxis( lines );
AdjustedCartesianAxis *yAxis = new AdjustedCartesianAxis( lines );
yAxis->setBounds(29.9, 31.0);
xAxis->setPosition ( KDChart::CartesianAxis::Bottom );
yAxis->setPosition ( KDChart::CartesianAxis::Left );
yAxis->setTitleText ( "an axis class with customized labels" );
lines->addAxis( xAxis );
lines->addAxis( yAxis );
KDChart::CartesianCoordinatePlane* plane =
static_cast< KDChart::CartesianCoordinatePlane * >(m_chart->coordinatePlane());
plane->replaceDiagram( lines );
KDChart::HeaderFooter* headerFooter = new KDChart::HeaderFooter( m_chart );
m_chart->addHeaderFooter( headerFooter );
headerFooter->setText( "Line diagram using a custom axis class" );
KDChart::TextAttributes textAttrs( headerFooter->textAttributes() );
textAttrs.setPen( QPen( Qt::red ) );
headerFooter->setTextAttributes( textAttrs );
headerFooter->setType( KDChart::HeaderFooter::Header );
headerFooter->setPosition( KDChart::Position::North );
// assign some bg colors
KDChart::BackgroundAttributes ba = yAxis->backgroundAttributes();
ba.setVisible(true);
ba.setBrush(QBrush(QColor(255,255,200)));
yAxis->setBackgroundAttributes(ba);
}
