MainWindow::MainWindow( QWidget* parent ) :
QWidget( parent )
{
setupUi( this );
QHBoxLayout* chartLayout = new QHBoxLayout( chartFrame );
m_chart = new KDChart::Chart;
chartLayout->addWidget( m_chart );
hSBar->setVisible( false );
vSBar->setVisible( false );
m_model.loadFromCSV( ":/data" );
// Set up the diagram
m_lines = new KDChart::LineDiagram();
m_lines->setModel( &m_model );
KDChart::CartesianAxis *xAxis = new KDChart::CartesianAxis( m_lines );
KDChart::TextAttributes ta( xAxis->textAttributes() );
AdjustedCartesianAxis *yAxis = new AdjustedCartesianAxis( m_lines );
yAxis->setBounds( 3, 6 );
xAxis->setPosition ( KDChart::CartesianAxis::Bottom );
yAxis->setPosition ( KDChart::CartesianAxis::Left );
/*
// set the following to 0 to have only one of the axes with background
#if 1
// colourize the axes' backgrounds
KDChart::BackgroundAttributes ba = yAxis->backgroundAttributes();
ba.setVisible( true );
ba.setBrush( QBrush( QColor( 0xff, 0xff, 0x40 ) ) );
yAxis->setBackgroundAttributes( ba );
xAxis->setBackgroundAttributes( ba );
#else
// colourize the Ordinate axis' background
QLinearGradient linearGrad( QPointF( 0, 100 ), QPointF( 0, 400 ) );
linearGrad.setColorAt( 0.0, QColor( 0xff, 0xff, 0xc0 ) );
linearGrad.setColorAt( 1.0, QColor( 0xa0, 0xc0, 0xff ) );
ba = yAxis->backgroundAttributes();
ba.setVisible( true );
ba.setBrush( linearGrad );
yAxis->setBackgroundAttributes( ba );
#endif
*/
// add 1 pixel space at the left and at the top edge, because the
// axis area would otherwise overwrite the left/top borders
m_chart->setGlobalLeading( 1, 1, 0, 0 );
// set the following to 0, to see the default Abscissa labels (== X headers, as read from the data file)
#if 1
QStringList daysOfWeek;
daysOfWeek << "Monday" << "Tuesday" << "Wednesday" << "Thursday" << "Friday" << "Saturday" << "Sunday";
xAxis->setLabels( daysOfWeek );
//QStringList shortDays;
//shortDays << "Mon" << "Tue" << "Wed" << "Thu" << "Fri" << "Sat" << "Sun";
//xAxis->setShortLabels( shortDays );
#endif
// Use HTML for drawing the text in the axis labels.
#if 0
QStringList htmlStyles;
htmlStyles << "<b>Bold</b>" << "<i>Italic</i>" << "<u>Underline</u>" << "<font color='red'>Red</font>";
xAxis->setLabels( htmlStyles );
ta.setTextDocument(new QTextDocument);
#endif
// set custom axis labels at custom positions
#if 0
QMap< qreal, QString > annotations;
annotations[ 0.5 ] = "Left";
annotations[ 3.5 ] = "Center";
annotations[ 4.2 ] = "After Center";
annotations[ 6.5 ] = "Right";
xAxis->setAnnotations(annotations);
#endif
// Illustration of custom ticks
QList<qreal> ticks;
ticks.append( 0.5 );
ticks.append( 3.5 );
ticks.append( 4.2 );
ticks.append( 6.5 );
xAxis->setCustomTicks(ticks);
yAxis->setCustomTicks(ticks);
// rotate abscissa labels by -60 degrees:
ta.setRotation( -60 );
xAxis->setTextAttributes( ta );
m_lines->addAxis( xAxis );
m_lines->addAxis( yAxis );
m_chart->coordinatePlane()->replaceDiagram( m_lines );
// Set up the legend
xAxis->setCustomTickLength( 11 );
yAxis->setCustomTickLength( 11 );
m_legend = new KDChart::Legend( m_lines, m_chart );
m_legend->setPosition( KDChart::Position::East );
m_legend->setAlignment( Qt::AlignTop );
m_chart->addLegend( m_legend );
}
