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qwt_compass_rose.h

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 00018 class QWT_EXPORT QwtCompassRose 00019 { 00020 public: 00021 virtual ~QwtCompassRose() {}; 00022 00023 virtual void setPalette(const QPalette &p) { d_palette = p; } 00024 const QPalette &palette() const { return d_palette; } 00025 00026 virtual void draw(QPainter *, const QPoint &center, 00027 int radius, double north, 00028 QPalette::ColorGroup = QPalette::Active) const = 0; 00029 00030 private: 00031 QPalette d_palette; 00032 }; 00033 00034 class QWT_EXPORT QwtSimpleCompassRose: public QwtCompassRose 00035 { 00036 public: 00037 QwtSimpleCompassRose(int numThorns = 8, int numThornLevels = -1); 00038 00039 void setWidth(double w); 00040 double width() const { return d_width; } 00041 00042 void setNumThorns(int count); 00043 int numThorns() const; 00044 00045 void setNumThornLevels(int count); 00046 int numThornLevels() const; 00047 00048 void setShrinkFactor(double factor) { d_shrinkFactor = factor; } 00049 double shrinkFactor() const { return d_shrinkFactor; } 00050 00051 virtual void draw(QPainter *, const QPoint &center, int radius, 00052 double north, QPalette::ColorGroup = QPalette::Active) const; 00053 00054 static void drawRose(QPainter *, const QColorGroup &, 00055 const QPoint &center, int radius, double origin, double width, 00056 int numThorns, int numThornLevels, double shrinkFactor); 00057 00058 private: 00059 double d_width; 00060 int d_numThorns; 00061 int d_numThornLevels; 00062 double d_shrinkFactor; 00063 }; 00064 00065 #endif // QWT_COMPASS_ROSE_H

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