Qwt User's Guide  6.0.2
qwt_painter.h
1 /* -*- mode: C++ ; c-file-style: "stroustrup" -*- *****************************
2  * Qwt Widget Library
3  * Copyright (C) 1997 Josef Wilgen
4  * Copyright (C) 2002 Uwe Rathmann
5  *
6  * This library is free software; you can redistribute it and/or
7  * modify it under the terms of the Qwt License, Version 1.0
8  *****************************************************************************/
9 
10 #ifndef QWT_PAINTER_H
11 #define QWT_PAINTER_H
12 
13 #include "qwt_global.h"
14 
15 #include <qpoint.h>
16 #include <qrect.h>
17 #include <qpen.h>
18 #include <qline.h>
19 
20 class QPainter;
21 class QBrush;
22 class QColor;
23 class QWidget;
24 class QPolygonF;
25 class QRectF;
26 class QImage;
27 class QPixmap;
28 class QwtScaleMap;
29 class QwtColorMap;
30 class QwtInterval;
31 
32 class QPalette;
33 class QTextDocument;
34 class QPainterPath;
35 
39 class QWT_EXPORT QwtPainter
40 {
41 public:
42  static void setPolylineSplitting( bool );
43  static bool polylineSplitting();
44 
45  static void setRoundingAlignment( bool );
46  static bool roundingAlignment();
47  static bool roundingAlignment(QPainter *);
48 
49  static void drawText( QPainter *, double x, double y, const QString & );
50  static void drawText( QPainter *, const QPointF &, const QString & );
51  static void drawText( QPainter *, double x, double y, double w, double h,
52  int flags, const QString & );
53  static void drawText( QPainter *, const QRectF &,
54  int flags, const QString & );
55 
56 #ifndef QT_NO_RICHTEXT
57  static void drawSimpleRichText( QPainter *, const QRectF &,
58  int flags, const QTextDocument & );
59 #endif
60 
61  static void drawRect( QPainter *, double x, double y, double w, double h );
62  static void drawRect( QPainter *, const QRectF &rect );
63  static void fillRect( QPainter *, const QRectF &, const QBrush & );
64 
65  static void drawEllipse( QPainter *, const QRectF & );
66  static void drawPie( QPainter *, const QRectF & r, int a, int alen );
67 
68  static void drawLine( QPainter *, double x1, double y1, double x2, double y2 );
69  static void drawLine( QPainter *, const QPointF &p1, const QPointF &p2 );
70  static void drawLine( QPainter *, const QLineF & );
71 
72  static void drawPolygon( QPainter *, const QPolygonF &pa );
73  static void drawPolyline( QPainter *, const QPolygonF &pa );
74  static void drawPolyline( QPainter *, const QPointF *, int pointCount );
75 
76  static void drawPoint( QPainter *, double x, double y );
77  static void drawPoint( QPainter *, const QPointF & );
78 
79  static void drawPath( QPainter *, const QPainterPath & );
80  static void drawImage( QPainter *, const QRectF &, const QImage & );
81  static void drawPixmap( QPainter *, const QRectF &, const QPixmap & );
82 
83  static void drawRoundedFrame( QPainter *,
84  const QRectF &, double xRadius, double yRadius,
85  const QPalette &, int lineWidth, int frameStyle );
86 
87  static void drawFocusRect( QPainter *, QWidget * );
88  static void drawFocusRect( QPainter *, QWidget *, const QRect & );
89 
90  static void drawColorBar( QPainter *painter,
91  const QwtColorMap &, const QwtInterval &,
92  const QwtScaleMap &, Qt::Orientation, const QRectF & );
93 
94  static bool isAligning( QPainter *painter );
95 
96 private:
97  static bool d_polylineSplitting;
98  static bool d_roundingAlignment;
99 };
100 
102 inline void QwtPainter::drawPoint( QPainter *painter, double x, double y )
103 {
104  QwtPainter::drawPoint( painter, QPointF( x, y ) );
105 }
106 
108 inline void QwtPainter::drawLine( QPainter *painter,
109  double x1, double y1, double x2, double y2 )
110 {
111  QwtPainter::drawLine( painter, QPointF( x1, y1 ), QPointF( x2, y2 ) );
112 }
113 
115 inline void QwtPainter::drawLine( QPainter *painter, const QLineF &line )
116 {
117  QwtPainter::drawLine( painter, line.p1(), line.p2() );
118 }
119 
125 {
126  return d_polylineSplitting;
127 }
128 
137 {
138  return d_roundingAlignment;
139 }
140 
145 inline bool QwtPainter::roundingAlignment(QPainter *painter)
146 {
147  return d_roundingAlignment && isAligning(painter);
148 }
149 #endif