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89 lines
2.2 KiB
89 lines
2.2 KiB
/* -*- mode: C++ ; c-file-style: "stroustrup" -*- ***************************** |
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* Qwt Widget Library |
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* Copyright (C) 1997 Josef Wilgen |
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* Copyright (C) 2002 Uwe Rathmann |
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* |
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* This library is free software; you can redistribute it and/or |
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* modify it under the terms of the Qwt License, Version 1.0 |
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*****************************************************************************/ |
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#ifndef QWT_COMPASS_ROSE_H |
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#define QWT_COMPASS_ROSE_H 1 |
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#include "qwt_global.h" |
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#include <qpalette.h> |
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class QPainter; |
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/*! |
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\brief Abstract base class for a compass rose |
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*/ |
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class QWT_EXPORT QwtCompassRose |
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{ |
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public: |
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//! Destructor |
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virtual ~QwtCompassRose() {}; |
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//! Assign a palette |
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virtual void setPalette( const QPalette &p ) |
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{ |
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d_palette = p; |
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} |
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//! \return Current palette |
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const QPalette &palette() const |
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{ |
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return d_palette; |
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} |
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/*! |
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Draw the rose |
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\param painter Painter |
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\param center Center point |
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\param radius Radius of the rose |
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\param north Position |
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\param colorGroup Color group |
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*/ |
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virtual void draw( QPainter *painter, |
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const QPointF ¢er, double radius, double north, |
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QPalette::ColorGroup colorGroup = QPalette::Active ) const = 0; |
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private: |
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QPalette d_palette; |
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}; |
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/*! |
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\brief A simple rose for QwtCompass |
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*/ |
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class QWT_EXPORT QwtSimpleCompassRose: public QwtCompassRose |
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{ |
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public: |
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QwtSimpleCompassRose( int numThorns = 8, int numThornLevels = -1 ); |
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virtual ~QwtSimpleCompassRose(); |
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void setWidth( double w ); |
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double width() const; |
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void setNumThorns( int count ); |
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int numThorns() const; |
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void setNumThornLevels( int count ); |
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int numThornLevels() const; |
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void setShrinkFactor( double factor ); |
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double shrinkFactor() const; |
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virtual void draw( QPainter *, const QPointF ¢er, double radius, |
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double north, QPalette::ColorGroup = QPalette::Active ) const; |
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static void drawRose( QPainter *, const QPalette &, |
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const QPointF ¢er, double radius, double origin, double width, |
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int numThorns, int numThornLevels, double shrinkFactor ); |
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private: |
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class PrivateData; |
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PrivateData *d_data; |
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}; |
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#endif
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