qwt_painter.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_PAINTER_H 00011 #define QWT_PAINTER_H 00012 00013 #include <qpoint.h> 00014 #include <qrect.h> 00015 #include <qpen.h> 00016 #include "qwt_global.h" 00017 #include "qwt_layout_metrics.h" 00018 #include "qwt_polygon.h" 00019 00020 class QPainter; 00021 class QBrush; 00022 class QColor; 00023 class QWidget; 00024 class QwtScaleMap; 00025 class QwtColorMap; 00026 class QwtDoubleInterval; 00027 00028 #if QT_VERSION < 0x040000 00029 class QColorGroup; 00030 class QSimpleRichText; 00031 #else 00032 class QPalette; 00033 class QTextDocument; 00034 #endif 00035 00036 #if defined(Q_WS_X11) 00037 // Warning: QCOORD_MIN, QCOORD_MAX are wrong on X11. 00038 #define QWT_COORD_MAX 16384 00039 #define QWT_COORD_MIN (-QWT_COORD_MAX - 1) 00040 #else 00041 #define QWT_COORD_MAX 2147483647 00042 #define QWT_COORD_MIN -QWT_COORD_MAX - 1 00043 #endif 00044 00063 class QWT_EXPORT QwtPainter 00064 { 00065 public: 00066 static void setMetricsMap(const QPaintDevice *layout, 00067 const QPaintDevice *device); 00068 static void setMetricsMap(const QwtMetricsMap &); 00069 static void resetMetricsMap(); 00070 static const QwtMetricsMap &metricsMap(); 00071 00072 static void setDeviceClipping(bool); 00073 static bool deviceClipping(); 00074 static const QRect &deviceClipRect(); 00075 00076 static void setClipRect(QPainter *, const QRect &); 00077 00078 static void drawText(QPainter *, int x, int y, 00079 const QString &); 00080 static void drawText(QPainter *, const QPoint &, 00081 const QString &); 00082 static void drawText(QPainter *, int x, int y, int w, int h, 00083 int flags, const QString &); 00084 static void drawText(QPainter *, const QRect &, 00085 int flags, const QString &); 00086 00087 #ifndef QT_NO_RICHTEXT 00088 #if QT_VERSION < 0x040000 00089 static void drawSimpleRichText(QPainter *, const QRect &, 00090 int flags, QSimpleRichText &); 00091 #else 00092 static void drawSimpleRichText(QPainter *, const QRect &, 00093 int flags, QTextDocument &); 00094 #endif 00095 #endif 00096 00097 static void drawRect(QPainter *, int x, int y, int w, int h); 00098 static void drawRect(QPainter *, const QRect &rect); 00099 static void fillRect(QPainter *, const QRect &, const QBrush &); 00100 00101 static void drawEllipse(QPainter *, const QRect &); 00102 static void drawPie(QPainter *, const QRect & r, int a, int alen); 00103 00104 static void drawLine(QPainter *, int x1, int y1, int x2, int y2); 00105 static void drawLine(QPainter *, const QPoint &p1, const QPoint &p2); 00106 static void drawPolygon(QPainter *, const QwtPolygon &pa); 00107 static void drawPolyline(QPainter *, const QwtPolygon &pa); 00108 static void drawPoint(QPainter *, int x, int y); 00109 00110 #if QT_VERSION < 0x040000 00111 static void drawRoundFrame(QPainter *, const QRect &, 00112 int width, const QColorGroup &cg, bool sunken); 00113 #else 00114 static void drawRoundFrame(QPainter *, const QRect &, 00115 int width, const QPalette &, bool sunken); 00116 #endif 00117 static void drawFocusRect(QPainter *, QWidget *); 00118 static void drawFocusRect(QPainter *, QWidget *, const QRect &); 00119 00120 static void drawColorBar(QPainter *painter, 00121 const QwtColorMap &, const QwtDoubleInterval &, 00122 const QwtScaleMap &, Qt::Orientation, const QRect &); 00123 00124 #if QT_VERSION < 0x040000 00125 static void setSVGMode(bool on); 00126 static bool isSVGMode(); 00127 #endif 00128 00129 static QPen scaledPen(const QPen &); 00130 00131 private: 00132 static void drawColoredArc(QPainter *, const QRect &, 00133 int peak, int arc, int intervall, const QColor &c1, const QColor &c2); 00134 00135 static bool d_deviceClipping; 00136 static QwtMetricsMap d_metricsMap; 00137 #if QT_VERSION < 0x040000 00138 static bool d_SVGMode; 00139 #endif 00140 }; 00141 00143 inline void QwtPainter::drawLine(QPainter *painter, 00144 const QPoint &p1, const QPoint &p2) 00145 { 00146 drawLine(painter, p1.x(), p1.y(), p2.x(), p2.y()); 00147 } 00148 00154 inline bool QwtPainter::deviceClipping() 00155 { 00156 return d_deviceClipping; 00157 } 00158 00159 #endif
