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qwt_wheel.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_WHEEL_H 00011 #define QWT_WHEEL_H 00012 00013 #include "qwt_global.h" 00014 #include "qwt_sldbase.h" 00015 00025 class QWT_EXPORT QwtWheel : public QwtSliderBase 00026 { 00027 Q_OBJECT 00028 Q_PROPERTY( double totalAngle READ totalAngle WRITE setTotalAngle ) 00029 Q_PROPERTY( double viewAngle READ viewAngle WRITE setViewAngle ) 00030 Q_PROPERTY( int tickCnt READ tickCnt WRITE setTickCnt ) 00031 Q_PROPERTY( int internalBorder READ internalBorder WRITE setInternalBorder ) 00032 Q_PROPERTY( double mass READ mass WRITE setMass ) 00033 00034 public: 00035 QwtWheel(QWidget *parent = 0, const char *name = 0); 00036 virtual ~QwtWheel(); 00037 00038 virtual void setOrientation(Qt::Orientation); 00039 00040 double totalAngle() const {return d_totalAngle;} 00041 double viewAngle() const {return d_viewAngle;} 00042 int tickCnt() const {return d_tickCnt;} 00043 int internalBorder() const {return d_intBorder;} 00044 double mass() const; 00045 00046 void setTotalAngle (double angle); 00047 void setTickCnt(int cnt); 00048 void setViewAngle(double angle); 00049 void setInternalBorder(int width); 00050 void setMass(double val); 00051 void setWheelWidth( int w ); 00052 00053 virtual QSize sizeHint() const; 00054 virtual QSize minimumSizeHint() const; 00055 virtual QSizePolicy sizePolicy() const; 00056 00057 protected: 00058 virtual void resizeEvent(QResizeEvent *e); 00059 virtual void paintEvent(QPaintEvent *e); 00060 00061 void layoutWheel( bool update = TRUE ); 00062 void draw(QPainter *p, const QRect& update_rect); 00063 void drawWheel(QPainter *p, const QRect &r); 00064 void drawWheelBackground(QPainter *p, const QRect &r); 00065 void setColorArray(); 00066 00067 virtual void valueChange(); 00068 virtual void paletteChange( const QPalette &); 00069 00070 virtual double getValue(const QPoint &p); 00071 virtual void getScrollMode(const QPoint &p, 00072 int &scrollMode, int &direction); 00073 00074 private: 00075 QColor* d_colors; 00076 QRect d_sliderRect; 00077 double d_viewAngle; 00078 double d_totalAngle; 00079 int d_tickCnt; 00080 int d_intBorder; 00081 int d_borderWidth; 00082 int d_colorCnt; 00083 int d_wheelWidth; 00084 int d_allocContext; 00085 }; 00086 00087 #endif

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