Add files from zip

2023-10-31 09:22:42 +01:00
parent 6bacdc5f6d
commit 4dae68036f
2788 changed files with 492537 additions and 0 deletions
--- a/examples/barchart/BarChart.cpp
+++ b/examples/barchart/BarChart.cpp
@@ -0,0 +1,141 @@
+/*****************************************************************************
+ * Qwt Examples - Copyright (C) 2002 Uwe Rathmann
+ * This file may be used under the terms of the 3-clause BSD License
+ *****************************************************************************/
+
+#include "BarChart.h"
+
+#include <QwtPlotRenderer>
+#include <QwtPlotMultiBarChart>
+#include <QwtColumnSymbol>
+#include <QwtPlotLayout>
+#include <QwtLegend>
+#include <QwtScaleDraw>
+#include <QwtText>
+#include <QwtMath>
+
+BarChart::BarChart( QWidget* parent )
+    : QwtPlot( parent )
+{
+    setAutoFillBackground( true );
+
+    setPalette( Qt::white );
+    canvas()->setPalette( QColor( "LemonChiffon" ) );
+
+    setTitle( "Bar Chart" );
+
+    setAxisTitle( QwtAxis::YLeft, "Whatever" );
+    setAxisTitle( QwtAxis::XBottom, "Whatever" );
+
+    m_barChartItem = new QwtPlotMultiBarChart( "Bar Chart " );
+    m_barChartItem->setLayoutPolicy( QwtPlotMultiBarChart::AutoAdjustSamples );
+    m_barChartItem->setSpacing( 20 );
+    m_barChartItem->setMargin( 3 );
+
+    m_barChartItem->attach( this );
+
+    insertLegend( new QwtLegend() );
+
+    populate();
+    setOrientation( 0 );
+
+    setAutoReplot( true );
+}
+
+void BarChart::populate()
+{
+    static const char* colors[] = { "DarkOrchid", "SteelBlue", "Gold" };
+
+    const int numSamples = 5;
+    const int numBars = sizeof( colors ) / sizeof( colors[0] );
+
+    QList< QwtText > titles;
+    for ( int i = 0; i < numBars; i++ )
+    {
+        QString title("Bar %1");
+        titles += title.arg( i );
+    }
+    m_barChartItem->setBarTitles( titles );
+    m_barChartItem->setLegendIconSize( QSize( 10, 14 ) );
+
+    for ( int i = 0; i < numBars; i++ )
+    {
+        QwtColumnSymbol* symbol = new QwtColumnSymbol( QwtColumnSymbol::Box );
+        symbol->setLineWidth( 2 );
+        symbol->setFrameStyle( QwtColumnSymbol::Raised );
+        symbol->setPalette( QPalette( colors[i] ) );
+
+        m_barChartItem->setSymbol( i, symbol );
+    }
+
+    QVector< QVector< double > > series;
+    for ( int i = 0; i < numSamples; i++ )
+    {
+        QVector< double > values;
+        for ( int j = 0; j < numBars; j++ )
+            values += ( 2 + qwtRand() % 8 );
+
+        series += values;
+    }
+
+    m_barChartItem->setSamples( series );
+}
+
+void BarChart::setMode( int mode )
+{
+    if ( mode == 0 )
+    {
+        m_barChartItem->setStyle( QwtPlotMultiBarChart::Grouped );
+    }
+    else
+    {
+        m_barChartItem->setStyle( QwtPlotMultiBarChart::Stacked );
+    }
+}
+
+void BarChart::setOrientation( int orientation )
+{
+    int axis1, axis2;
+
+    if ( orientation == 0 )
+    {
+        axis1 = QwtAxis::XBottom;
+        axis2 = QwtAxis::YLeft;
+
+        m_barChartItem->setOrientation( Qt::Vertical );
+    }
+    else
+    {
+        axis1 = QwtAxis::YLeft;
+        axis2 = QwtAxis::XBottom;
+
+        m_barChartItem->setOrientation( Qt::Horizontal );
+    }
+
+    setAxisScale( axis1, 0, m_barChartItem->dataSize() - 1, 1.0 );
+    setAxisAutoScale( axis2 );
+
+    QwtScaleDraw* scaleDraw1 = axisScaleDraw( axis1 );
+    scaleDraw1->enableComponent( QwtScaleDraw::Backbone, false );
+    scaleDraw1->enableComponent( QwtScaleDraw::Ticks, false );
+
+    QwtScaleDraw* scaleDraw2 = axisScaleDraw( axis2 );
+    scaleDraw2->enableComponent( QwtScaleDraw::Backbone, true );
+    scaleDraw2->enableComponent( QwtScaleDraw::Ticks, true );
+
+    plotLayout()->setAlignCanvasToScale( axis1, true );
+    plotLayout()->setAlignCanvasToScale( axis2, false );
+
+    plotLayout()->setCanvasMargin( 0 );
+    updateCanvasMargins();
+
+    replot();
+}
+
+void BarChart::exportChart()
+{
+    QwtPlotRenderer renderer;
+    renderer.exportTo( this, "barchart.pdf" );
+}
+
+#include "moc_BarChart.cpp"