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KDChartPolarDiagram.h

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00001 /* -*- Mode: C++ -*-
00002    KDChart - a multi-platform charting engine
00003    */
00004 
00005 /****************************************************************************
00006  ** Copyright (C) 2005-2006 Klarälvdalens Datakonsult AB.  All rights reserved.
00007  **
00008  ** This file is part of the KD Chart library.
00009  **
00010  ** This file may be distributed and/or modified under the terms of the
00011  ** GNU General Public License version 2 as published by the Free Software
00012  ** Foundation and appearing in the file LICENSE.GPL included in the
00013  ** packaging of this file.
00014  **
00015  ** Licensees holding valid commercial KD Chart licenses may use this file in
00016  ** accordance with the KD Chart Commercial License Agreement provided with
00017  ** the Software.
00018  **
00019  ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
00020  ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
00021  **
00022  ** See http://www.kdab.net/kdchart for
00023  **   information about KD Chart Commercial License Agreements.
00024  **
00025  ** Contact info@kdab.net if any conditions of this
00026  ** licensing are not clear to you.
00027  **
00028  **********************************************************************/
00029 
00030 #ifndef KDCHARTPOLARDIAGRAM_H
00031 #define KDCHARTPOLARDIAGRAM_H
00032 
00033 
00034 #include "KDChartPosition.h"
00035 #include "KDChartAbstractPolarDiagram.h"
00036 
00037 
00038 class QPolygonF;
00039 
00040 
00041 namespace KDChart {
00042 
00043 class KDCHART_EXPORT PolarDiagram : public AbstractPolarDiagram
00044 {
00045     Q_OBJECT
00046 
00047     Q_DISABLE_COPY( PolarDiagram )
00048     KDCHART_DECLARE_DERIVED_DIAGRAM( PolarDiagram, PolarCoordinatePlane )
00049 
00050 public:
00051     explicit PolarDiagram(
00052         QWidget* parent = 0, PolarCoordinatePlane* plane = 0 );
00053     virtual ~PolarDiagram();
00054 
00055 protected:
00056     // Implement AbstractDiagram
00058     virtual void paint ( PaintContext* paintContext );
00059 
00060 public:
00062     virtual void resize ( const QSizeF& area );
00063 
00064     // Implement AbstractPolarDiagram
00066     virtual double valueTotals () const;
00068     virtual double numberOfValuesPerDataset() const;
00070     virtual double numberOfGridRings() const;
00071 
00072     virtual PolarDiagram * clone() const;
00073 
00075     void setZeroDegreePosition( int degrees );
00077     int zeroDegreePosition() const;
00078 
00079     void setRotateCircularLabels( bool rotateCircularLabels );
00080     bool rotateCircularLabels() const;
00081 
00085     void setCloseDatasets( bool closeDatasets );
00086     bool closeDatasets() const;
00087 
00088     void setShowDelimitersAtPosition( Position position,
00089                                       bool showDelimiters );
00090     void setShowLabelsAtPosition( Position position,
00091                                   bool showLabels );
00092 
00093     bool showDelimitersAtPosition( Position position ) const;
00094 
00095     bool showLabelsAtPosition( Position position ) const;
00096 
00097 protected:
00099     virtual const QPair<QPointF, QPointF> calculateDataBoundaries() const;
00100     void paintEvent ( QPaintEvent* );
00101     void resizeEvent ( QResizeEvent* );
00102     virtual void paintPolarMarkers( PaintContext* ctx, const QPolygonF& polygon );
00103 
00104 }; // End of class PolarDiagram
00105 
00106 }
00107 
00108 
00109 #endif // KDCHARTPOLARDIAGRAM_H

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