Released version 6.1.3

playground/shapes/shapes.cpp

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+#include <qapplication.h>
+#include <qpainterpath.h>
+#include <qwt_plot.h>
+#include <qwt_legend.h>
+#include <qwt_point_data.h>
+#include <qwt_plot_canvas.h>
+#include <qwt_plot_panner.h>
+#include <qwt_plot_magnifier.h>
+#include <qwt_plot_shapeitem.h>
+#include <qwt_scale_engine.h>
+
+class Plot : public QwtPlot
+{
+public:
+    Plot( QWidget *parent = NULL );
+
+private:
+    void populate();
+};
+
+
+Plot::Plot( QWidget *parent ):
+    QwtPlot( parent )
+{
+    setPalette( QColor( 60, 60, 60 ) );
+    canvas()->setPalette( Qt::white );
+
+    // panning with the left mouse button
+    ( void ) new QwtPlotPanner( canvas() );
+
+    // zoom in/out with the wheel
+    ( void ) new QwtPlotMagnifier( canvas() );
+
+    setTitle( "Shapes" );
+    insertLegend( new QwtLegend(), QwtPlot::RightLegend );
+
+    // axes
+    setAxisTitle( xBottom, "x -->" );
+    setAxisTitle( yLeft, "y -->" );
+#if 0
+    setAxisScaleEngine( xBottom, new QwtLog10ScaleEngine );
+    setAxisScaleEngine( yLeft, new QwtLog10ScaleEngine );
+#endif
+
+    populate();
+}
+
+void Plot::populate()
+{
+    const double d = 900.0;
+    const QRectF rect( 1.0, 1.0, d, d );
+
+    QPainterPath path;
+    //path.setFillRule( Qt::WindingFill );
+    path.addEllipse( rect );
+
+    const QRectF rect2 = rect.adjusted( 0.2 * d, 0.3 * d, -0.22 * d, 1.5 * d );
+    path.addEllipse( rect2 );
+
+#if 0
+    QFont font;
+    font.setPointSizeF( 200 );
+    QPainterPath textPath;
+    textPath.addText( rect.center(), font, "Seppi" );
+
+    QTransform transform;
+    transform.translate( rect.center().x() - 600, rect.center().y() + 50 );
+    transform.rotate( 180.0, Qt::XAxis );
+
+    textPath = transform.map( textPath );
+
+    path.addPath( textPath );
+#endif
+
+    QwtPlotShapeItem *item = new QwtPlotShapeItem( "Shape" );
+    item->setItemAttribute( QwtPlotItem::Legend, true );
+    item->setRenderHint( QwtPlotItem::RenderAntialiased, true );
+#if 1
+    item->setRenderTolerance( 1.0 );
+#endif
+    item->setShape( path );
+    item->setPen( Qt::yellow );
+
+    QColor c = Qt::darkRed;
+    c.setAlpha( 100 );
+    item->setBrush( c );
+
+    item->attach( this );
+}
+
+int main( int argc, char **argv )
+{
+    QApplication a( argc, argv );
+
+    Plot plot;
+    plot.resize( 600, 400 );
+    plot.show();
+
+    return a.exec();
+}

playground/shapes/shapes.pro

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+################################################################
+# Qwt Widget Library
+# Copyright (C) 1997   Josef Wilgen
+# Copyright (C) 2002   Uwe Rathmann
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the Qwt License, Version 1.0
+################################################################
+
+include( $${PWD}/../playground.pri )
+
+TARGET       = shapes
+
+SOURCES = \
+    shapes.cpp
+