qwt_compass_rose.h
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00001 /* -*- mode: C++ ; c-file-style: "stroustrup" -*- ***************************** 00002 * Qwt Widget Library 00003 * Copyright (C) 1997 Josef Wilgen 00004 * Copyright (C) 2002 Uwe Rathmann 00005 * 00006 * This library is free software; you can redistribute it and/or 00007 * modify it under the terms of the Qwt License, Version 1.0 00008 *****************************************************************************/ 00009 00010 #ifndef QWT_COMPASS_ROSE_H 00011 #define QWT_COMPASS_ROSE_H 1 00012 00013 #include <qpalette.h> 00014 #include "qwt_global.h" 00015 00016 class QPainter; 00017 00021 class QWT_EXPORT QwtCompassRose 00022 { 00023 public: 00024 virtual ~QwtCompassRose() {}; 00025 00027 virtual void setPalette(const QPalette &p) { d_palette = p; } 00028 00030 const QPalette &palette() const { return d_palette; } 00031 00041 virtual void draw(QPainter *painter, const QPoint ¢er, 00042 int radius, double north, 00043 QPalette::ColorGroup colorGroup = QPalette::Active) const = 0; 00044 00045 private: 00046 QPalette d_palette; 00047 }; 00048 00052 class QWT_EXPORT QwtSimpleCompassRose: public QwtCompassRose 00053 { 00054 public: 00055 QwtSimpleCompassRose(int numThorns = 8, int numThornLevels = -1); 00056 00057 void setWidth(double w); 00058 00060 double width() const { return d_width; } 00061 00062 void setNumThorns(int count); 00063 int numThorns() const; 00064 00065 void setNumThornLevels(int count); 00066 int numThornLevels() const; 00067 00068 void setShrinkFactor(double factor) { d_shrinkFactor = factor; } 00069 double shrinkFactor() const { return d_shrinkFactor; } 00070 00071 virtual void draw(QPainter *, const QPoint ¢er, int radius, 00072 double north, QPalette::ColorGroup = QPalette::Active) const; 00073 00074 static void drawRose(QPainter *, 00075 #if QT_VERSION < 0x040000 00076 const QColorGroup &, 00077 #else 00078 const QPalette &, 00079 #endif 00080 const QPoint ¢er, int radius, double origin, double width, 00081 int numThorns, int numThornLevels, double shrinkFactor); 00082 00083 private: 00084 double d_width; 00085 int d_numThorns; 00086 int d_numThornLevels; 00087 double d_shrinkFactor; 00088 }; 00089 00090 #endif // QWT_COMPASS_ROSE_H
