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<h1>qwt_painter.cpp</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/* -*- mode: C++ ; c-file-style: "stroustrup" -*- *****************************</span>
21
<a name="l00002"></a>00002 <span class="comment"> * Qwt Widget Library</span>
22
<a name="l00003"></a>00003 <span class="comment"> * Copyright (C) 1997 Josef Wilgen</span>
23
<a name="l00004"></a>00004 <span class="comment"> * Copyright (C) 2002 Uwe Rathmann</span>
24
<a name="l00005"></a>00005 <span class="comment"> *</span>
25
<a name="l00006"></a>00006 <span class="comment"> * This library is free software; you can redistribute it and/or</span>
26
<a name="l00007"></a>00007 <span class="comment"> * modify it under the terms of the Qwt License, Version 1.0</span>
27
<a name="l00008"></a>00008 <span class="comment"> *****************************************************************************/</span>
28
<a name="l00009"></a>00009
29
<a name="l00010"></a>00010 <span class="comment">// vim: expandtab</span>
30
<a name="l00011"></a>00011
31
<a name="l00012"></a>00012 <span class="preprocessor">#include <qwindowdefs.h></span>
32
<a name="l00013"></a>00013 <span class="preprocessor">#include <qwidget.h></span>
33
<a name="l00014"></a>00014 <span class="preprocessor">#include <qrect.h></span>
34
<a name="l00015"></a>00015 <span class="preprocessor">#include <qpainter.h></span>
35
<a name="l00016"></a>00016 <span class="preprocessor">#include <qpalette.h></span>
36
<a name="l00017"></a>00017 <span class="preprocessor">#include <qpaintdevice.h></span>
37
<a name="l00018"></a>00018 <span class="preprocessor">#include <qpixmap.h></span>
38
<a name="l00019"></a>00019 <span class="preprocessor">#include <qstyle.h></span>
39
<a name="l00020"></a>00020 <span class="preprocessor">#if QT_VERSION < 0x040000</span>
40
<a name="l00021"></a>00021 <span class="preprocessor"></span><span class="preprocessor">#include <qsimplerichtext.h></span>
41
<a name="l00022"></a>00022 <span class="preprocessor">#else</span>
42
<a name="l00023"></a>00023 <span class="preprocessor"></span><span class="preprocessor">#include <qtextdocument.h></span>
43
<a name="l00024"></a>00024 <span class="preprocessor">#include <qabstracttextdocumentlayout.h></span>
44
<a name="l00025"></a>00025 <span class="preprocessor">#include <qstyleoption.h></span>
45
<a name="l00026"></a>00026 <span class="preprocessor">#include <qpaintengine.h></span>
46
<a name="l00027"></a>00027 <span class="preprocessor">#endif</span>
47
<a name="l00028"></a>00028 <span class="preprocessor"></span>
48
<a name="l00029"></a>00029 <span class="preprocessor">#include "qwt_clipper.h"</span>
49
<a name="l00030"></a>00030 <span class="preprocessor">#include "qwt_math.h"</span>
50
<a name="l00031"></a>00031 <span class="preprocessor">#include "qwt_color_map.h"</span>
51
<a name="l00032"></a>00032 <span class="preprocessor">#include "qwt_scale_map.h"</span>
52
<a name="l00033"></a>00033 <span class="preprocessor">#include "qwt_painter.h"</span>
53
<a name="l00034"></a>00034
54
<a name="l00035"></a>00035 <a class="code" href="class_qwt_metrics_map.html">QwtMetricsMap</a> QwtPainter::d_metricsMap;
55
<a name="l00036"></a>00036
56
<a name="l00037"></a>00037 <span class="preprocessor">#if defined(Q_WS_X11)</span>
57
<a name="l00038"></a>00038 <span class="preprocessor"></span><span class="keywordtype">bool</span> QwtPainter::d_deviceClipping = <span class="keyword">true</span>;
58
<a name="l00039"></a>00039 <span class="preprocessor">#else</span>
59
<a name="l00040"></a>00040 <span class="preprocessor"></span><span class="keywordtype">bool</span> QwtPainter::d_deviceClipping = <span class="keyword">false</span>;
60
<a name="l00041"></a>00041 <span class="preprocessor">#endif</span>
61
<a name="l00042"></a>00042 <span class="preprocessor"></span>
62
<a name="l00043"></a>00043 <span class="preprocessor">#if QT_VERSION < 0x040000</span>
63
<a name="l00044"></a>00044 <span class="preprocessor"></span><span class="keywordtype">bool</span> QwtPainter::d_SVGMode = <span class="keyword">false</span>;
64
<a name="l00045"></a>00045 <span class="preprocessor">#endif</span>
65
<a name="l00046"></a>00046 <span class="preprocessor"></span>
66
<a name="l00047"></a>00047 <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> needDeviceClipping(
67
<a name="l00048"></a>00048 <span class="keyword">const</span> QPainter *painter, <span class="keywordtype">bool</span> deviceClipping)
68
<a name="l00049"></a>00049 {
69
<a name="l00050"></a>00050 <span class="keywordflow">return</span> deviceClipping &&
70
<a name="l00051"></a>00051 (painter->device()->devType() == QInternal::Widget ||
71
<a name="l00052"></a>00052 painter->device()->devType() == QInternal::Pixmap );
72
<a name="l00053"></a>00053 }
73
<a name="l00054"></a>00054
74
<a name="l00062"></a><a class="code" href="class_qwt_painter.html#97362eaf7ae87354b4145a8d05b29ea1">00062</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_painter.html#97362eaf7ae87354b4145a8d05b29ea1">QwtPainter::setDeviceClipping</a>(<span class="keywordtype">bool</span> enable)
75
<a name="l00063"></a>00063 {
76
<a name="l00064"></a>00064 d_deviceClipping = enable;
77
<a name="l00065"></a>00065 }
78
<a name="l00066"></a>00066
79
<a name="l00073"></a><a class="code" href="class_qwt_painter.html#0d4b0e0cb454143e9951a951d1cb0600">00073</a> <span class="keywordtype">bool</span> <a class="code" href="class_qwt_painter.html#0d4b0e0cb454143e9951a951d1cb0600">QwtPainter::deviceClipping</a>()
80
<a name="l00074"></a>00074 {
81
<a name="l00075"></a>00075 <span class="keywordflow">return</span> d_deviceClipping;
82
<a name="l00076"></a>00076 }
83
<a name="l00077"></a>00077
84
<a name="l00082"></a>00082 <span class="keyword">const</span> QRect &QwtPainter::deviceClipRect()
85
<a name="l00083"></a>00083 {
86
<a name="l00084"></a>00084 <span class="keyword">static</span> QRect <a class="code" href="class_qwt_painter.html#241e86dde3636d8e25acc40a135dd054">clip</a>;
87
<a name="l00085"></a>00085
88
<a name="l00086"></a>00086 <span class="keywordflow">if</span> ( !clip.isValid() )
89
<a name="l00087"></a>00087 {
90
<a name="l00088"></a>00088 clip.setCoords(QWT_COORD_MIN, QWT_COORD_MIN,
91
<a name="l00089"></a>00089 QWT_COORD_MAX, QWT_COORD_MAX);
92
<a name="l00090"></a>00090 }
93
<a name="l00091"></a>00091 <span class="keywordflow">return</span> clip;
94
<a name="l00092"></a>00092 }
95
<a name="l00093"></a>00093
96
<a name="l00095"></a><a class="code" href="class_qwt_painter.html#241e86dde3636d8e25acc40a135dd054">00095</a> QwtPolygon <a class="code" href="class_qwt_painter.html#241e86dde3636d8e25acc40a135dd054">QwtPainter::clip</a>(<span class="keyword">const</span> QwtPolygon &pa)
97
<a name="l00096"></a>00096 {
98
<a name="l00097"></a>00097 <span class="keywordflow">return</span> <a class="code" href="class_qwt_clipper.html#fa6c30e4e0fdc606ba4b99a4624cbff5">QwtClipper::clipPolygon</a>(deviceClipRect(), pa);
99
<a name="l00098"></a>00098 }
100
<a name="l00099"></a>00099
101
<a name="l00100"></a>00100 <span class="preprocessor">#if QT_VERSION < 0x040000 </span>
102
<a name="l00101"></a>00101 <span class="preprocessor"></span>
103
<a name="l00113"></a>00113 <span class="keywordtype">void</span> QwtPainter::setSVGMode(<span class="keywordtype">bool</span> on)
104
<a name="l00114"></a>00114 {
105
<a name="l00115"></a>00115 d_SVGMode = on;
106
<a name="l00116"></a>00116 }
107
<a name="l00117"></a>00117
108
<a name="l00118"></a>00118 <span class="keywordtype">bool</span> QwtPainter::isSVGMode()
109
<a name="l00119"></a>00119 {
110
<a name="l00120"></a>00120 <span class="keywordflow">return</span> d_SVGMode;
111
<a name="l00121"></a>00121 }
112
<a name="l00122"></a>00122
113
<a name="l00123"></a>00123 <span class="preprocessor">#endif // QT_VERSION < 0x040000</span>
114
<a name="l00124"></a>00124 <span class="preprocessor"></span>
115
<a name="l00133"></a><a class="code" href="class_qwt_painter.html#952553514abb7ab83c4a43602c899777">00133</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_painter.html#952553514abb7ab83c4a43602c899777">QwtPainter::setMetricsMap</a>(<span class="keyword">const</span> QPaintDevice *layout,
116
<a name="l00134"></a>00134 <span class="keyword">const</span> QPaintDevice *device)
117
<a name="l00135"></a>00135 {
118
<a name="l00136"></a>00136 d_metricsMap.<a class="code" href="class_qwt_metrics_map.html#5890baf34ffa9e2bcd18f5e559821ad0">setMetrics</a>(layout, device);
119
<a name="l00137"></a>00137 }
120
<a name="l00138"></a>00138
121
<a name="l00143"></a><a class="code" href="class_qwt_painter.html#8ddc7ad5f7544ee42e9014eebb7b7bcc">00143</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_painter.html#952553514abb7ab83c4a43602c899777">QwtPainter::setMetricsMap</a>(<span class="keyword">const</span> <a class="code" href="class_qwt_metrics_map.html">QwtMetricsMap</a> &map)
122
<a name="l00144"></a>00144 {
123
<a name="l00145"></a>00145 d_metricsMap = map;
124
<a name="l00146"></a>00146 }
125
<a name="l00147"></a>00147
126
<a name="l00152"></a><a class="code" href="class_qwt_painter.html#0a20214cff4c8edd4c3caa0ad3a2112f">00152</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_painter.html#0a20214cff4c8edd4c3caa0ad3a2112f">QwtPainter::resetMetricsMap</a>()
127
<a name="l00153"></a>00153 {
128
<a name="l00154"></a>00154 d_metricsMap = <a class="code" href="class_qwt_metrics_map.html">QwtMetricsMap</a>();
129
<a name="l00155"></a>00155 }
130
<a name="l00156"></a>00156
131
<a name="l00160"></a><a class="code" href="class_qwt_painter.html#3de95bfc83c9beee537404b41749bad5">00160</a> <span class="keyword">const</span> <a class="code" href="class_qwt_metrics_map.html">QwtMetricsMap</a> &<a class="code" href="class_qwt_painter.html#3de95bfc83c9beee537404b41749bad5">QwtPainter::metricsMap</a>()
132
<a name="l00161"></a>00161 {
133
<a name="l00162"></a>00162 <span class="keywordflow">return</span> d_metricsMap;
134
<a name="l00163"></a>00163 }
135
<a name="l00164"></a>00164
136
<a name="l00168"></a><a class="code" href="class_qwt_painter.html#7a3b7e59fd56236dd99c5b1772e1a768">00168</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_painter.html#7a3b7e59fd56236dd99c5b1772e1a768">QwtPainter::setClipRect</a>(QPainter *painter, <span class="keyword">const</span> QRect &rect)
137
<a name="l00169"></a>00169 {
138
<a name="l00170"></a>00170 painter->setClipRect(d_metricsMap.<a class="code" href="class_qwt_metrics_map.html#f54f053fcfcb7dc595725a3caa3fb433">layoutToDevice</a>(rect, painter));
139
<a name="l00171"></a>00171 }
140
<a name="l00172"></a>00172
141
<a name="l00176"></a><a class="code" href="class_qwt_painter.html#9d606b6a681b9e1d0e0823c8a169ac7e">00176</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_painter.html#9d606b6a681b9e1d0e0823c8a169ac7e">QwtPainter::drawRect</a>(QPainter *painter, <span class="keywordtype">int</span> x, <span class="keywordtype">int</span> y, <span class="keywordtype">int</span> w, <span class="keywordtype">int</span> h)
142
<a name="l00177"></a>00177 {
143
<a name="l00178"></a>00178 <a class="code" href="class_qwt_painter.html#9d606b6a681b9e1d0e0823c8a169ac7e">drawRect</a>(painter, QRect(x, y, w, h));
144
<a name="l00179"></a>00179 }
145
<a name="l00180"></a>00180
146
<a name="l00184"></a><a class="code" href="class_qwt_painter.html#864e17670956e5c65dbe463eb945a23e">00184</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_painter.html#9d606b6a681b9e1d0e0823c8a169ac7e">QwtPainter::drawRect</a>(QPainter *painter, <span class="keyword">const</span> QRect &rect)
147
<a name="l00185"></a>00185 {
148
<a name="l00186"></a>00186 <span class="keyword">const</span> QRect r = d_metricsMap.<a class="code" href="class_qwt_metrics_map.html#f54f053fcfcb7dc595725a3caa3fb433">layoutToDevice</a>(rect, painter);
149
<a name="l00187"></a>00187
150
<a name="l00188"></a>00188 QRect clipRect;
151
<a name="l00189"></a>00189
152
<a name="l00190"></a>00190 <span class="keyword">const</span> <span class="keywordtype">bool</span> deviceClipping = needDeviceClipping(painter, d_deviceClipping);
153
<a name="l00191"></a>00191 <span class="keywordflow">if</span> ( deviceClipping )
154
<a name="l00192"></a>00192 clipRect = deviceClipRect();
155
<a name="l00193"></a>00193
156
<a name="l00194"></a>00194 <span class="keywordflow">if</span> ( clipRect.isValid() )
157
<a name="l00195"></a>00195 {
158
<a name="l00196"></a>00196 <span class="keywordflow">if</span> ( !clipRect.intersects(r) )
159
<a name="l00197"></a>00197 <span class="keywordflow">return</span>;
160
<a name="l00198"></a>00198
161
<a name="l00199"></a>00199 <span class="keywordflow">if</span> ( !clipRect.contains(r) )
162
<a name="l00200"></a>00200 {
163
<a name="l00201"></a>00201 <a class="code" href="class_qwt_painter.html#1c9f9151299412bcefeee103bc4abe27">fillRect</a>(painter, r & clipRect, painter->brush());
164
<a name="l00202"></a>00202
165
<a name="l00203"></a>00203 <span class="keywordtype">int</span> pw = painter->pen().width();
166
<a name="l00204"></a>00204 pw = pw % 2 + pw / 2;
167
<a name="l00205"></a>00205
168
<a name="l00206"></a>00206 QwtPolygon pa(5);
169
<a name="l00207"></a>00207 pa.setPoint(0, r.left(), r.top());
170
<a name="l00208"></a>00208 pa.setPoint(1, r.right() - pw, r.top());
171
<a name="l00209"></a>00209 pa.setPoint(2, r.right() - pw, r.bottom() - pw);
172
<a name="l00210"></a>00210 pa.setPoint(3, r.left(), r.bottom() - pw);
173
<a name="l00211"></a>00211 pa.setPoint(4, r.left(), r.top());
174
<a name="l00212"></a>00212
175
<a name="l00213"></a>00213 painter->save();
176
<a name="l00214"></a>00214 painter->setBrush(Qt::NoBrush);
177
<a name="l00215"></a>00215 <a class="code" href="class_qwt_painter.html#fec384335c12a3cf84d82cbeb30cd537">drawPolyline</a>(painter, pa);
178
<a name="l00216"></a>00216 painter->restore();
179
<a name="l00217"></a>00217
180
<a name="l00218"></a>00218 <span class="keywordflow">return</span>;
181
<a name="l00219"></a>00219 }
182
<a name="l00220"></a>00220 }
183
<a name="l00221"></a>00221
184
<a name="l00222"></a>00222 painter->drawRect(r);
185
<a name="l00223"></a>00223 }
186
<a name="l00224"></a>00224
187
<a name="l00228"></a><a class="code" href="class_qwt_painter.html#1c9f9151299412bcefeee103bc4abe27">00228</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_painter.html#1c9f9151299412bcefeee103bc4abe27">QwtPainter::fillRect</a>(QPainter *painter,
188
<a name="l00229"></a>00229 <span class="keyword">const</span> QRect &rect, <span class="keyword">const</span> QBrush &brush)
189
<a name="l00230"></a>00230 {
190
<a name="l00231"></a>00231 <span class="keywordflow">if</span> ( !rect.isValid() )
191
<a name="l00232"></a>00232 <span class="keywordflow">return</span>;
192
<a name="l00233"></a>00233
193
<a name="l00234"></a>00234 <span class="keyword">const</span> <span class="keywordtype">bool</span> deviceClipping = needDeviceClipping(painter, d_deviceClipping);
194
<a name="l00235"></a>00235
195
<a name="l00236"></a>00236 QRect clipRect;
196
<a name="l00237"></a>00237 <span class="preprocessor">#if QT_VERSION >= 0x040000</span>
197
<a name="l00238"></a>00238 <span class="preprocessor"></span>
198
<a name="l00239"></a>00239 <span class="comment">/*</span>
199
<a name="l00240"></a>00240 <span class="comment"> Performance of Qt4 is horrible for non trivial brushs. Without</span>
200
<a name="l00241"></a>00241 <span class="comment"> clipping expect minutes or hours for repainting large rects</span>
201
<a name="l00242"></a>00242 <span class="comment"> (might result from zooming)</span>
202
<a name="l00243"></a>00243 <span class="comment"> */</span>
203
<a name="l00244"></a>00244
204
<a name="l00245"></a>00245 clipRect = painter->window();
205
<a name="l00246"></a>00246 <span class="keywordflow">if</span> ( painter->hasClipping() )
206
<a name="l00247"></a>00247 clipRect &= painter->clipRegion().boundingRect();
207
<a name="l00248"></a>00248 <span class="keywordflow">if</span> ( deviceClipping )
208
<a name="l00249"></a>00249 clipRect &= deviceClipRect();
209
<a name="l00250"></a>00250 <span class="preprocessor">#else</span>
210
<a name="l00251"></a>00251 <span class="preprocessor"></span> <span class="keywordflow">if</span> ( deviceClipping )
211
<a name="l00252"></a>00252 clipRect = deviceClipRect();
212
<a name="l00253"></a>00253 <span class="preprocessor">#endif</span>
213
<a name="l00254"></a>00254 <span class="preprocessor"></span>
214
<a name="l00255"></a>00255 QRect r = d_metricsMap.<a class="code" href="class_qwt_metrics_map.html#f54f053fcfcb7dc595725a3caa3fb433">layoutToDevice</a>(rect, painter);
215
<a name="l00256"></a>00256 <span class="keywordflow">if</span> ( clipRect.isValid() )
216
<a name="l00257"></a>00257 r = r.intersect(clipRect);
217
<a name="l00258"></a>00258
218
<a name="l00259"></a>00259 <span class="keywordflow">if</span> ( r.isValid() )
219
<a name="l00260"></a>00260 painter->fillRect(r, brush);
220
<a name="l00261"></a>00261 }
221
<a name="l00262"></a>00262
222
<a name="l00266"></a><a class="code" href="class_qwt_painter.html#d833659e67037f7d16df604d306d4466">00266</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_painter.html#d833659e67037f7d16df604d306d4466">QwtPainter::drawPie</a>(QPainter *painter, <span class="keyword">const</span> QRect &rect,
223
<a name="l00267"></a>00267 <span class="keywordtype">int</span> a, <span class="keywordtype">int</span> alen)
224
<a name="l00268"></a>00268 {
225
<a name="l00269"></a>00269 QRect r = d_metricsMap.<a class="code" href="class_qwt_metrics_map.html#f54f053fcfcb7dc595725a3caa3fb433">layoutToDevice</a>(rect, painter);
226
<a name="l00270"></a>00270
227
<a name="l00271"></a>00271 <span class="keyword">const</span> <span class="keywordtype">bool</span> deviceClipping = needDeviceClipping(painter, d_deviceClipping);
228
<a name="l00272"></a>00272 <span class="keywordflow">if</span> ( deviceClipping && !deviceClipRect().contains(rect) )
229
<a name="l00273"></a>00273 <span class="keywordflow">return</span>;
230
<a name="l00274"></a>00274
231
<a name="l00275"></a>00275 painter->drawPie(r, a, alen);
232
<a name="l00276"></a>00276 }
233
<a name="l00277"></a>00277
234
<a name="l00281"></a><a class="code" href="class_qwt_painter.html#d04cda859203b745e662d1e2f74adc59">00281</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_painter.html#d04cda859203b745e662d1e2f74adc59">QwtPainter::drawEllipse</a>(QPainter *painter, <span class="keyword">const</span> QRect &rect)
235
<a name="l00282"></a>00282 {
236
<a name="l00283"></a>00283 QRect r = d_metricsMap.<a class="code" href="class_qwt_metrics_map.html#f54f053fcfcb7dc595725a3caa3fb433">layoutToDevice</a>(rect, painter);
237
<a name="l00284"></a>00284
238
<a name="l00285"></a>00285 <span class="keyword">const</span> <span class="keywordtype">bool</span> deviceClipping = needDeviceClipping(painter, d_deviceClipping);
239
<a name="l00286"></a>00286
240
<a name="l00287"></a>00287 <span class="keywordflow">if</span> ( deviceClipping && !deviceClipRect().contains(rect) )
241
<a name="l00288"></a>00288 <span class="keywordflow">return</span>;
242
<a name="l00289"></a>00289
243
<a name="l00290"></a>00290 <span class="preprocessor">#if QT_VERSION >= 0x040000</span>
244
<a name="l00291"></a>00291 <span class="preprocessor"></span> <span class="keywordflow">if</span> ( painter->pen().style() != Qt::NoPen &&
245
<a name="l00292"></a>00292 painter->pen().color().isValid() )
246
<a name="l00293"></a>00293 {
247
<a name="l00294"></a>00294 <span class="comment">// Qt4 adds the pen to the rect, Qt3 not.</span>
248
<a name="l00295"></a>00295 <span class="keywordtype">int</span> pw = painter->pen().width();
249
<a name="l00296"></a>00296 <span class="keywordflow">if</span> ( pw == 0 )
250
<a name="l00297"></a>00297 pw = 1;
251
<a name="l00298"></a>00298
252
<a name="l00299"></a>00299 r.setWidth(r.width() - pw);
253
<a name="l00300"></a>00300 r.setHeight(r.height() - pw);
254
<a name="l00301"></a>00301 }
255
<a name="l00302"></a>00302 <span class="preprocessor">#endif</span>
256
<a name="l00303"></a>00303 <span class="preprocessor"></span>
257
<a name="l00304"></a>00304 painter->drawEllipse(r);
258
<a name="l00305"></a>00305 }
259
<a name="l00306"></a>00306
260
<a name="l00310"></a><a class="code" href="class_qwt_painter.html#c94535733b20c2325ca60e1551c4d756">00310</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_painter.html#c94535733b20c2325ca60e1551c4d756">QwtPainter::drawText</a>(QPainter *painter, <span class="keywordtype">int</span> x, <span class="keywordtype">int</span> y,
261
<a name="l00311"></a>00311 <span class="keyword">const</span> QString &text)
262
<a name="l00312"></a>00312 {
263
<a name="l00313"></a>00313 <a class="code" href="class_qwt_painter.html#c94535733b20c2325ca60e1551c4d756">drawText</a>(painter, QPoint(x, y), text);
264
<a name="l00314"></a>00314 }
265
<a name="l00315"></a>00315
266
<a name="l00319"></a><a class="code" href="class_qwt_painter.html#8cdeb299686bfe785cc6d77cf9bfc4d9">00319</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_painter.html#c94535733b20c2325ca60e1551c4d756">QwtPainter::drawText</a>(QPainter *painter, <span class="keyword">const</span> QPoint &pos,
267
<a name="l00320"></a>00320 <span class="keyword">const</span> QString &text)
268
<a name="l00321"></a>00321 {
269
<a name="l00322"></a>00322 <span class="keyword">const</span> QPoint p = d_metricsMap.<a class="code" href="class_qwt_metrics_map.html#f54f053fcfcb7dc595725a3caa3fb433">layoutToDevice</a>(pos, painter);
270
<a name="l00323"></a>00323
271
<a name="l00324"></a>00324 <span class="keyword">const</span> <span class="keywordtype">bool</span> deviceClipping = needDeviceClipping(painter, d_deviceClipping);
272
<a name="l00325"></a>00325
273
<a name="l00326"></a>00326 <span class="keywordflow">if</span> ( deviceClipping && !deviceClipRect().contains(p) )
274
<a name="l00327"></a>00327 <span class="keywordflow">return</span>;
275
<a name="l00328"></a>00328
276
<a name="l00329"></a>00329 painter->drawText(p, text);
277
<a name="l00330"></a>00330 }
278
<a name="l00331"></a>00331
279
<a name="l00335"></a><a class="code" href="class_qwt_painter.html#842a0096dff9d007bf362da4447d7a40">00335</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_painter.html#c94535733b20c2325ca60e1551c4d756">QwtPainter::drawText</a>(QPainter *painter, <span class="keywordtype">int</span> x, <span class="keywordtype">int</span> y, <span class="keywordtype">int</span> w, <span class="keywordtype">int</span> h,
280
<a name="l00336"></a>00336 <span class="keywordtype">int</span> flags, <span class="keyword">const</span> QString &text)
281
<a name="l00337"></a>00337 {
282
<a name="l00338"></a>00338 <a class="code" href="class_qwt_painter.html#c94535733b20c2325ca60e1551c4d756">drawText</a>(painter, QRect(x, y, w, h), flags, text);
283
<a name="l00339"></a>00339 }
284
<a name="l00340"></a>00340
285
<a name="l00344"></a><a class="code" href="class_qwt_painter.html#703af7b679a733917192f949d058444c">00344</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_painter.html#c94535733b20c2325ca60e1551c4d756">QwtPainter::drawText</a>(QPainter *painter, <span class="keyword">const</span> QRect &rect,
286
<a name="l00345"></a>00345 <span class="keywordtype">int</span> flags, <span class="keyword">const</span> QString &text)
287
<a name="l00346"></a>00346 {
288
<a name="l00347"></a>00347 QRect textRect = d_metricsMap.<a class="code" href="class_qwt_metrics_map.html#f54f053fcfcb7dc595725a3caa3fb433">layoutToDevice</a>(rect, painter);
289
<a name="l00348"></a>00348 <span class="preprocessor">#if QT_VERSION < 0x040000</span>
290
<a name="l00349"></a>00349 <span class="preprocessor"></span> <span class="keywordflow">if</span> ( d_SVGMode &&
291
<a name="l00350"></a>00350 ( flags == 0 || flags & Qt::AlignVCenter )
292
<a name="l00351"></a>00351 && painter->device()->devType() & QInternal::Picture )
293
<a name="l00352"></a>00352 {
294
<a name="l00353"></a>00353 <span class="comment">/*</span>
295
<a name="l00354"></a>00354 <span class="comment"> Qt3 misalignes texts, when saving a text</span>
296
<a name="l00355"></a>00355 <span class="comment"> to a SVG image. </span>
297
<a name="l00356"></a>00356 <span class="comment"> */</span>
298
<a name="l00357"></a>00357 textRect.setY(textRect.y() - painter->fontMetrics().height() / 4);
299
<a name="l00358"></a>00358 }
300
<a name="l00359"></a>00359 <span class="preprocessor">#endif</span>
301
<a name="l00360"></a>00360 <span class="preprocessor"></span> painter->drawText(textRect, flags, text);
302
<a name="l00361"></a>00361 }
303
<a name="l00362"></a>00362
304
<a name="l00363"></a>00363 <span class="preprocessor">#ifndef QT_NO_RICHTEXT</span>
305
<a name="l00364"></a>00364 <span class="preprocessor"></span>
306
<a name="l00368"></a>00368 <span class="preprocessor">#if QT_VERSION < 0x040000</span>
307
<a name="l00369"></a>00369 <span class="preprocessor"></span>
308
<a name="l00370"></a>00370 <span class="keywordtype">void</span> <a class="code" href="class_qwt_painter.html#7a259f26e7312eb6d41995650e222458">QwtPainter::drawSimpleRichText</a>(QPainter *painter, <span class="keyword">const</span> QRect &rect,
309
<a name="l00371"></a>00371 <span class="keywordtype">int</span> flags, QSimpleRichText &text)
310
<a name="l00372"></a>00372 {
311
<a name="l00373"></a>00373 QColorGroup cg;
312
<a name="l00374"></a>00374 cg.setColor(QColorGroup::Text, painter->pen().color());
313
<a name="l00375"></a>00375
314
<a name="l00376"></a>00376 <span class="keyword">const</span> QRect scaledRect = d_metricsMap.<a class="code" href="class_qwt_metrics_map.html#f54f053fcfcb7dc595725a3caa3fb433">layoutToDevice</a>(rect, painter);
315
<a name="l00377"></a>00377
316
<a name="l00378"></a>00378 text.setWidth(painter, scaledRect.width());
317
<a name="l00379"></a>00379
318
<a name="l00380"></a>00380 <span class="comment">// QSimpleRichText is Qt::AlignTop by default</span>
319
<a name="l00381"></a>00381
320
<a name="l00382"></a>00382 <span class="keywordtype">int</span> y = scaledRect.y();
321
<a name="l00383"></a>00383 <span class="keywordflow">if</span> (flags & Qt::AlignBottom)
322
<a name="l00384"></a>00384 y += (scaledRect.height() - text.height());
323
<a name="l00385"></a>00385 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (flags & Qt::AlignVCenter)
324
<a name="l00386"></a>00386 y += (scaledRect.height() - text.height())/2;
325
<a name="l00387"></a>00387
326
<a name="l00388"></a>00388 text.draw(painter, scaledRect.x(), y, scaledRect, cg);
327
<a name="l00389"></a>00389 }
328
<a name="l00390"></a>00390 <span class="preprocessor">#else</span>
329
<a name="l00391"></a><a class="code" href="class_qwt_painter.html#7a259f26e7312eb6d41995650e222458">00391</a> <span class="preprocessor"></span><span class="keywordtype">void</span> <a class="code" href="class_qwt_painter.html#7a259f26e7312eb6d41995650e222458">QwtPainter::drawSimpleRichText</a>(QPainter *painter, <span class="keyword">const</span> QRect &rect,
330
<a name="l00392"></a>00392 <span class="keywordtype">int</span> flags, QTextDocument &text)
331
<a name="l00393"></a>00393 {
332
<a name="l00394"></a>00394 <span class="keyword">const</span> QRect scaledRect = d_metricsMap.<a class="code" href="class_qwt_metrics_map.html#f54f053fcfcb7dc595725a3caa3fb433">layoutToDevice</a>(rect, painter);
333
<a name="l00395"></a>00395 text.setPageSize(QSize(scaledRect.width(), QWIDGETSIZE_MAX));
334
<a name="l00396"></a>00396
335
<a name="l00397"></a>00397 QAbstractTextDocumentLayout* layout = text.documentLayout();
336
<a name="l00398"></a>00398
337
<a name="l00399"></a>00399 <span class="keyword">const</span> <span class="keywordtype">int</span> height = qRound(layout->documentSize().height());
338
<a name="l00400"></a>00400 <span class="keywordtype">int</span> y = scaledRect.y();
339
<a name="l00401"></a>00401 <span class="keywordflow">if</span> (flags & Qt::AlignBottom)
340
<a name="l00402"></a>00402 y += (scaledRect.height() - height);
341
<a name="l00403"></a>00403 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (flags & Qt::AlignVCenter)
342
<a name="l00404"></a>00404 y += (scaledRect.height() - height)/2;
343
<a name="l00405"></a>00405
344
<a name="l00406"></a>00406 QAbstractTextDocumentLayout::PaintContext context;
345
<a name="l00407"></a>00407 context.palette.setColor(QPalette::Text, painter->pen().color());
346
<a name="l00408"></a>00408
347
<a name="l00409"></a>00409 painter->save();
348
<a name="l00410"></a>00410
349
<a name="l00411"></a>00411 painter->translate(scaledRect.x(), y);
350
<a name="l00412"></a>00412 layout->draw(painter, context);
351
<a name="l00413"></a>00413
352
<a name="l00414"></a>00414 painter->restore();
353
<a name="l00415"></a>00415 }
354
<a name="l00416"></a>00416 <span class="preprocessor">#endif</span>
355
<a name="l00417"></a>00417 <span class="preprocessor"></span>
356
<a name="l00418"></a>00418 <span class="preprocessor">#endif // !QT_NO_RICHTEXT</span>
357
<a name="l00419"></a>00419 <span class="preprocessor"></span>
358
<a name="l00420"></a>00420
359
<a name="l00424"></a><a class="code" href="class_qwt_painter.html#f809f23704df7e05f51222daa296ca80">00424</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_painter.html#f809f23704df7e05f51222daa296ca80">QwtPainter::drawLine</a>(QPainter *painter, <span class="keywordtype">int</span> x1, <span class="keywordtype">int</span> y1, <span class="keywordtype">int</span> x2, <span class="keywordtype">int</span> y2)
360
<a name="l00425"></a>00425 {
361
<a name="l00426"></a>00426 <span class="keyword">const</span> <span class="keywordtype">bool</span> deviceClipping = needDeviceClipping(painter, d_deviceClipping);
362
<a name="l00427"></a>00427
363
<a name="l00428"></a>00428 <span class="keywordflow">if</span> ( deviceClipping &&
364
<a name="l00429"></a>00429 !(deviceClipRect().contains(x1, y1) && deviceClipRect().contains(x2, y2)) )
365
<a name="l00430"></a>00430 {
366
<a name="l00431"></a>00431 QwtPolygon pa(2);
367
<a name="l00432"></a>00432 pa.setPoint(0, x1, y1);
368
<a name="l00433"></a>00433 pa.setPoint(1, x2, y2);
369
<a name="l00434"></a>00434 <a class="code" href="class_qwt_painter.html#fec384335c12a3cf84d82cbeb30cd537">drawPolyline</a>(painter, pa);
370
<a name="l00435"></a>00435 <span class="keywordflow">return</span>;
371
<a name="l00436"></a>00436 }
372
<a name="l00437"></a>00437
373
<a name="l00438"></a>00438 <span class="keywordflow">if</span> ( d_metricsMap.<a class="code" href="class_qwt_metrics_map.html#ed458d83b2d59f6f64e0a6d29a290275">isIdentity</a>() )
374
<a name="l00439"></a>00439 {
375
<a name="l00440"></a>00440 #<span class="keywordflow">if</span> QT_VERSION >= 0x030200 && QT_VERSION < 0x040000
376
<a name="l00441"></a>00441 <span class="keywordflow">if</span> ( !painter->device()->isExtDev() )
377
<a name="l00442"></a>00442 #endif
378
<a name="l00443"></a>00443 {
379
<a name="l00444"></a>00444 painter->drawLine(x1, y1, x2, y2);
380
<a name="l00445"></a>00445 <span class="keywordflow">return</span>;
381
<a name="l00446"></a>00446 }
382
<a name="l00447"></a>00447 }
383
<a name="l00448"></a>00448
384
<a name="l00449"></a>00449 <span class="keyword">const</span> QPoint p1 = d_metricsMap.<a class="code" href="class_qwt_metrics_map.html#f54f053fcfcb7dc595725a3caa3fb433">layoutToDevice</a>(QPoint(x1, y1));
385
<a name="l00450"></a>00450 <span class="keyword">const</span> QPoint p2 = d_metricsMap.<a class="code" href="class_qwt_metrics_map.html#f54f053fcfcb7dc595725a3caa3fb433">layoutToDevice</a>(QPoint(x2, y2));
386
<a name="l00451"></a>00451
387
<a name="l00452"></a>00452 <span class="preprocessor">#if QT_VERSION >= 0x030200 && QT_VERSION < 0x040000</span>
388
<a name="l00453"></a>00453 <span class="preprocessor"></span> <span class="keywordflow">if</span> ( painter->device()->isExtDev() )
389
<a name="l00454"></a>00454 {
390
<a name="l00455"></a>00455 <span class="comment">// Strange: the postscript driver of QPrinter adds an offset </span>
391
<a name="l00456"></a>00456 <span class="comment">// of 0.5 to the start/endpoint when using drawLine, but not</span>
392
<a name="l00457"></a>00457 <span class="comment">// for lines painted with drawLineSegments.</span>
393
<a name="l00458"></a>00458
394
<a name="l00459"></a>00459 QwtPolygon pa(2);
395
<a name="l00460"></a>00460 pa.setPoint(0, p1);
396
<a name="l00461"></a>00461 pa.setPoint(1, p2);
397
<a name="l00462"></a>00462 painter->drawLineSegments(pa);
398
<a name="l00463"></a>00463 }
399
<a name="l00464"></a>00464 <span class="keywordflow">else</span>
400
<a name="l00465"></a>00465 painter->drawLine(p1, p2);
401
<a name="l00466"></a>00466 <span class="preprocessor">#else</span>
402
<a name="l00467"></a>00467 <span class="preprocessor"></span> painter->drawLine(p1, p2);
403
<a name="l00468"></a>00468 <span class="preprocessor">#endif</span>
404
<a name="l00469"></a>00469 <span class="preprocessor"></span>}
405
<a name="l00470"></a>00470
406
<a name="l00474"></a><a class="code" href="class_qwt_painter.html#ea6a68bdfab18525b39f18413fc41950">00474</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_painter.html#ea6a68bdfab18525b39f18413fc41950">QwtPainter::drawPolygon</a>(QPainter *painter, <span class="keyword">const</span> QwtPolygon &pa)
407
<a name="l00475"></a>00475 {
408
<a name="l00476"></a>00476 <span class="keyword">const</span> <span class="keywordtype">bool</span> deviceClipping = needDeviceClipping(painter, d_deviceClipping);
409
<a name="l00477"></a>00477
410
<a name="l00478"></a>00478 QwtPolygon cpa = d_metricsMap.<a class="code" href="class_qwt_metrics_map.html#f54f053fcfcb7dc595725a3caa3fb433">layoutToDevice</a>(pa);
411
<a name="l00479"></a>00479 <span class="keywordflow">if</span> ( deviceClipping )
412
<a name="l00480"></a>00480 {
413
<a name="l00481"></a>00481 <span class="preprocessor">#ifdef __GNUC__</span>
414
<a name="l00482"></a>00482 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
415
<a name="l00483"></a>00483 <span class="preprocessor"></span> cpa = <a class="code" href="class_qwt_painter.html#241e86dde3636d8e25acc40a135dd054">clip</a>(cpa);
416
<a name="l00484"></a>00484 }
417
<a name="l00485"></a>00485 painter->drawPolygon(cpa);
418
<a name="l00486"></a>00486 }
419
<a name="l00487"></a>00487
420
<a name="l00491"></a><a class="code" href="class_qwt_painter.html#fec384335c12a3cf84d82cbeb30cd537">00491</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_painter.html#fec384335c12a3cf84d82cbeb30cd537">QwtPainter::drawPolyline</a>(QPainter *painter, <span class="keyword">const</span> QwtPolygon &pa)
421
<a name="l00492"></a>00492 {
422
<a name="l00493"></a>00493 <span class="keyword">const</span> <span class="keywordtype">bool</span> deviceClipping = needDeviceClipping(painter, d_deviceClipping);
423
<a name="l00494"></a>00494
424
<a name="l00495"></a>00495 QwtPolygon cpa = d_metricsMap.<a class="code" href="class_qwt_metrics_map.html#f54f053fcfcb7dc595725a3caa3fb433">layoutToDevice</a>(pa);
425
<a name="l00496"></a>00496 <span class="keywordflow">if</span> ( deviceClipping )
426
<a name="l00497"></a>00497 cpa = <a class="code" href="class_qwt_painter.html#241e86dde3636d8e25acc40a135dd054">clip</a>(cpa);
427
<a name="l00498"></a>00498
428
<a name="l00499"></a>00499 <span class="preprocessor">#if QT_VERSION >= 0x040000</span>
429
<a name="l00500"></a>00500 <span class="preprocessor"></span> <span class="keywordtype">bool</span> doSplit = <span class="keyword">false</span>;
430
<a name="l00501"></a>00501 <span class="keywordflow">if</span> ( painter->paintEngine()->type() == QPaintEngine::Raster &&
431
<a name="l00502"></a>00502 painter->pen().width() >= 2 )
432
<a name="l00503"></a>00503 {
433
<a name="l00504"></a>00504 <span class="comment">/*</span>
434
<a name="l00505"></a>00505 <span class="comment"> The raster paint engine seems to use some algo with O(n*n).</span>
435
<a name="l00506"></a>00506 <span class="comment"> ( Qt 4.3 is better than Qt 4.2, but remains unacceptable)</span>
436
<a name="l00507"></a>00507 <span class="comment"> To work around this problem, we have to split the polygon into</span>
437
<a name="l00508"></a>00508 <span class="comment"> smaller pieces.</span>
438
<a name="l00509"></a>00509 <span class="comment"> */</span>
439
<a name="l00510"></a>00510 doSplit = <span class="keyword">true</span>;
440
<a name="l00511"></a>00511 }
441
<a name="l00512"></a>00512
442
<a name="l00513"></a>00513 <span class="keywordflow">if</span> ( doSplit )
443
<a name="l00514"></a>00514 {
444
<a name="l00515"></a>00515 <span class="keyword">const</span> <span class="keywordtype">int</span> numPoints = cpa.size();
445
<a name="l00516"></a>00516 <span class="keyword">const</span> QPoint *points = cpa.data();
446
<a name="l00517"></a>00517
447
<a name="l00518"></a>00518 <span class="keyword">const</span> <span class="keywordtype">int</span> splitSize = 20;
448
<a name="l00519"></a>00519 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i = 0; i < numPoints; i += splitSize )
449
<a name="l00520"></a>00520 {
450
<a name="l00521"></a>00521 <span class="keyword">const</span> <span class="keywordtype">int</span> n = qwtMin(splitSize + 1, cpa.size() - i);
451
<a name="l00522"></a>00522 painter->drawPolyline(points + i, n);
452
<a name="l00523"></a>00523 }
453
<a name="l00524"></a>00524 }
454
<a name="l00525"></a>00525 <span class="keywordflow">else</span>
455
<a name="l00526"></a>00526 <span class="preprocessor">#endif</span>
456
<a name="l00527"></a>00527 <span class="preprocessor"></span> painter->drawPolyline(cpa);
457
<a name="l00528"></a>00528 }
458
<a name="l00529"></a>00529
459
<a name="l00534"></a><a class="code" href="class_qwt_painter.html#f75e34851777099b742910612e8e4b39">00534</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_painter.html#f75e34851777099b742910612e8e4b39">QwtPainter::drawPoint</a>(QPainter *painter, <span class="keywordtype">int</span> x, <span class="keywordtype">int</span> y)
460
<a name="l00535"></a>00535 {
461
<a name="l00536"></a>00536 <span class="keyword">const</span> <span class="keywordtype">bool</span> deviceClipping = needDeviceClipping(painter, d_deviceClipping);
462
<a name="l00537"></a>00537
463
<a name="l00538"></a>00538 <span class="keyword">const</span> QPoint pos = d_metricsMap.<a class="code" href="class_qwt_metrics_map.html#f54f053fcfcb7dc595725a3caa3fb433">layoutToDevice</a>(QPoint(x, y));
464
<a name="l00539"></a>00539
465
<a name="l00540"></a>00540 <span class="keywordflow">if</span> ( deviceClipping && !deviceClipRect().contains(pos) )
466
<a name="l00541"></a>00541 <span class="keywordflow">return</span>;
467
<a name="l00542"></a>00542
468
<a name="l00543"></a>00543 painter->drawPoint(pos);
469
<a name="l00544"></a>00544 }
470
<a name="l00545"></a>00545
471
<a name="l00546"></a>00546 <span class="keywordtype">void</span> QwtPainter::drawColoredArc(QPainter *painter, <span class="keyword">const</span> QRect &rect,
472
<a name="l00547"></a>00547 <span class="keywordtype">int</span> peak, <span class="keywordtype">int</span> arc, <span class="keywordtype">int</span> interval, <span class="keyword">const</span> QColor &c1, <span class="keyword">const</span> QColor &c2)
473
<a name="l00548"></a>00548 {
474
<a name="l00549"></a>00549 <span class="keywordtype">int</span> h1, s1, v1;
475
<a name="l00550"></a>00550 <span class="keywordtype">int</span> h2, s2, v2;
476
<a name="l00551"></a>00551
477
<a name="l00552"></a>00552 <span class="preprocessor">#if QT_VERSION < 0x040000</span>
478
<a name="l00553"></a>00553 <span class="preprocessor"></span> c1.hsv(&h1, &s1, &v1);
479
<a name="l00554"></a>00554 c2.hsv(&h2, &s2, &v2);
480
<a name="l00555"></a>00555 <span class="preprocessor">#else</span>
481
<a name="l00556"></a>00556 <span class="preprocessor"></span> c1.getHsv(&h1, &s1, &v1);
482
<a name="l00557"></a>00557 c2.getHsv(&h2, &s2, &v2);
483
<a name="l00558"></a>00558 <span class="preprocessor">#endif</span>
484
<a name="l00559"></a>00559 <span class="preprocessor"></span>
485
<a name="l00560"></a>00560 arc /= 2;
486
<a name="l00561"></a>00561 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> angle = -arc; angle < arc; angle += interval)
487
<a name="l00562"></a>00562 {
488
<a name="l00563"></a>00563 <span class="keywordtype">double</span> ratio;
489
<a name="l00564"></a>00564 <span class="keywordflow">if</span> ( angle >= 0 )
490
<a name="l00565"></a>00565 ratio = 1.0 - angle / <span class="keywordtype">double</span>(arc);
491
<a name="l00566"></a>00566 <span class="keywordflow">else</span>
492
<a name="l00567"></a>00567 ratio = 1.0 + angle / double(arc);
493
<a name="l00568"></a>00568
494
<a name="l00569"></a>00569
495
<a name="l00570"></a>00570 QColor c;
496
<a name="l00571"></a>00571 c.setHsv( h1 + qRound(ratio * (h2 - h1)),
497
<a name="l00572"></a>00572 s1 + qRound(ratio * (s2 - s1)),
498
<a name="l00573"></a>00573 v1 + qRound(ratio * (v2 - v1)) );
499
<a name="l00574"></a>00574
500
<a name="l00575"></a>00575 painter->setPen(QPen(c, painter->pen().width()));
501
<a name="l00576"></a>00576 painter->drawArc(rect, (peak + angle) * 16, interval * 16);
502
<a name="l00577"></a>00577 }
503
<a name="l00578"></a>00578 }
504
<a name="l00579"></a>00579
505
<a name="l00580"></a><a class="code" href="class_qwt_painter.html#bb6bbb26f325e33236c5292107e44102">00580</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_painter.html#bb6bbb26f325e33236c5292107e44102">QwtPainter::drawFocusRect</a>(QPainter *painter, QWidget *widget)
506
<a name="l00581"></a>00581 {
507
<a name="l00582"></a>00582 <a class="code" href="class_qwt_painter.html#bb6bbb26f325e33236c5292107e44102">drawFocusRect</a>(painter, widget, widget->rect());
508
<a name="l00583"></a>00583 }
509
<a name="l00584"></a>00584
510
<a name="l00585"></a><a class="code" href="class_qwt_painter.html#a83afab9c2cdedfdc52d747dcd140114">00585</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_painter.html#bb6bbb26f325e33236c5292107e44102">QwtPainter::drawFocusRect</a>(QPainter *painter, QWidget *widget,
511
<a name="l00586"></a>00586 <span class="keyword">const</span> QRect &rect)
512
<a name="l00587"></a>00587 {
513
<a name="l00588"></a>00588 <span class="preprocessor">#if QT_VERSION < 0x040000</span>
514
<a name="l00589"></a>00589 <span class="preprocessor"></span> widget->style().drawPrimitive(QStyle::PE_FocusRect, painter,
515
<a name="l00590"></a>00590 rect, widget->colorGroup());
516
<a name="l00591"></a>00591 <span class="preprocessor">#else</span>
517
<a name="l00592"></a>00592 <span class="preprocessor"></span> QStyleOptionFocusRect opt;
518
<a name="l00593"></a>00593 opt.init(widget);
519
<a name="l00594"></a>00594 opt.rect = rect;
520
<a name="l00595"></a>00595 opt.state |= QStyle::State_HasFocus;
521
<a name="l00596"></a>00596
522
<a name="l00597"></a>00597 widget->style()->drawPrimitive(QStyle::PE_FrameFocusRect,
523
<a name="l00598"></a>00598 &opt, painter, widget);
524
<a name="l00599"></a>00599 <span class="preprocessor">#endif</span>
525
<a name="l00600"></a>00600 <span class="preprocessor"></span>
526
<a name="l00601"></a>00601 }
527
<a name="l00602"></a>00602
528
<a name="l00604"></a>00604 <span class="preprocessor">#if QT_VERSION < 0x040000</span>
529
<a name="l00605"></a>00605 <span class="preprocessor"></span><span class="keywordtype">void</span> <a class="code" href="class_qwt_painter.html#38c9272d0cbfc400cf3a86dcccafd551">QwtPainter::drawRoundFrame</a>(QPainter *painter, <span class="keyword">const</span> QRect &rect,
530
<a name="l00606"></a>00606 <span class="keywordtype">int</span> width, <span class="keyword">const</span> QColorGroup &cg, <span class="keywordtype">bool</span> sunken)
531
<a name="l00607"></a>00607 <span class="preprocessor">#else</span>
532
<a name="l00608"></a><a class="code" href="class_qwt_painter.html#38c9272d0cbfc400cf3a86dcccafd551">00608</a> <span class="preprocessor"></span><span class="keywordtype">void</span> <a class="code" href="class_qwt_painter.html#38c9272d0cbfc400cf3a86dcccafd551">QwtPainter::drawRoundFrame</a>(QPainter *painter, <span class="keyword">const</span> QRect &rect,
533
<a name="l00609"></a>00609 <span class="keywordtype">int</span> width, <span class="keyword">const</span> QPalette &palette, <span class="keywordtype">bool</span> sunken)
534
<a name="l00610"></a>00610 <span class="preprocessor">#endif</span>
535
<a name="l00611"></a>00611 <span class="preprocessor"></span>{
536
<a name="l00612"></a>00612
537
<a name="l00613"></a>00613 <span class="preprocessor">#if QT_VERSION < 0x040000</span>
538
<a name="l00614"></a>00614 <span class="preprocessor"></span> QColor c0 = cg.mid();
539
<a name="l00615"></a>00615 QColor c1, c2;
540
<a name="l00616"></a>00616 <span class="keywordflow">if</span> ( sunken )
541
<a name="l00617"></a>00617 {
542
<a name="l00618"></a>00618 c1 = cg.dark();
543
<a name="l00619"></a>00619 c2 = cg.light();
544
<a name="l00620"></a>00620 }
545
<a name="l00621"></a>00621 <span class="keywordflow">else</span>
546
<a name="l00622"></a>00622 {
547
<a name="l00623"></a>00623 c1 = cg.light();
548
<a name="l00624"></a>00624 c2 = cg.dark();
549
<a name="l00625"></a>00625 }
550
<a name="l00626"></a>00626 <span class="preprocessor">#else</span>
551
<a name="l00627"></a>00627 <span class="preprocessor"></span> QColor c0 = palette.color(QPalette::Mid);
552
<a name="l00628"></a>00628 QColor c1, c2;
553
<a name="l00629"></a>00629 <span class="keywordflow">if</span> ( sunken )
554
<a name="l00630"></a>00630 {
555
<a name="l00631"></a>00631 c1 = palette.color(QPalette::Dark);
556
<a name="l00632"></a>00632 c2 = palette.color(QPalette::Light);
557
<a name="l00633"></a>00633 }
558
<a name="l00634"></a>00634 <span class="keywordflow">else</span>
559
<a name="l00635"></a>00635 {
560
<a name="l00636"></a>00636 c1 = palette.color(QPalette::Light);
561
<a name="l00637"></a>00637 c2 = palette.color(QPalette::Dark);
562
<a name="l00638"></a>00638 }
563
<a name="l00639"></a>00639 <span class="preprocessor">#endif</span>
564
<a name="l00640"></a>00640 <span class="preprocessor"></span>
565
<a name="l00641"></a>00641 painter->setPen(QPen(c0, width));
566
<a name="l00642"></a>00642 painter->drawArc(rect, 0, 360 * 16); <span class="comment">// full</span>
567
<a name="l00643"></a>00643
568
<a name="l00644"></a>00644 <span class="keyword">const</span> <span class="keywordtype">int</span> peak = 150;
569
<a name="l00645"></a>00645 <span class="keyword">const</span> <span class="keywordtype">int</span> interval = 2;
570
<a name="l00646"></a>00646
571
<a name="l00647"></a>00647 <span class="keywordflow">if</span> ( c0 != c1 )
572
<a name="l00648"></a>00648 drawColoredArc(painter, rect, peak, 160, interval, c0, c1);
573
<a name="l00649"></a>00649 <span class="keywordflow">if</span> ( c0 != c2 )
574
<a name="l00650"></a>00650 drawColoredArc(painter, rect, peak + 180, 120, interval, c0, c2);
575
<a name="l00651"></a>00651 }
576
<a name="l00652"></a>00652
577
<a name="l00653"></a><a class="code" href="class_qwt_painter.html#985edd7dd1dadbd0a5af6e7fa0f32792">00653</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_painter.html#985edd7dd1dadbd0a5af6e7fa0f32792">QwtPainter::drawColorBar</a>(QPainter *painter,
578
<a name="l00654"></a>00654 <span class="keyword">const</span> <a class="code" href="class_qwt_color_map.html">QwtColorMap</a> &colorMap, <span class="keyword">const</span> <a class="code" href="class_qwt_double_interval.html">QwtDoubleInterval</a> &interval,
579
<a name="l00655"></a>00655 <span class="keyword">const</span> <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a> &scaleMap, Qt::Orientation orientation,
580
<a name="l00656"></a>00656 <span class="keyword">const</span> QRect &rect)
581
<a name="l00657"></a>00657 {
582
<a name="l00658"></a>00658 <span class="preprocessor">#if QT_VERSION < 0x040000</span>
583
<a name="l00659"></a>00659 <span class="preprocessor"></span> QValueVector<QRgb> colorTable;
584
<a name="l00660"></a>00660 <span class="preprocessor">#else</span>
585
<a name="l00661"></a>00661 <span class="preprocessor"></span> QVector<QRgb> colorTable;
586
<a name="l00662"></a>00662 <span class="preprocessor">#endif</span>
587
<a name="l00663"></a>00663 <span class="preprocessor"></span> <span class="keywordflow">if</span> ( colorMap.<a class="code" href="class_qwt_color_map.html#6a7defcce42e779c1596e277c78986c2">format</a>() == QwtColorMap::Indexed )
588
<a name="l00664"></a>00664 colorTable = colorMap.<a class="code" href="class_qwt_color_map.html#47c081462d0d8e1bda021818eb61d73f">colorTable</a>(interval);
589
<a name="l00665"></a>00665
590
<a name="l00666"></a>00666 QColor c;
591
<a name="l00667"></a>00667
592
<a name="l00668"></a>00668 <span class="keyword">const</span> QRect devRect = d_metricsMap.<a class="code" href="class_qwt_metrics_map.html#f54f053fcfcb7dc595725a3caa3fb433">layoutToDevice</a>(rect);
593
<a name="l00669"></a>00669
594
<a name="l00670"></a>00670 <span class="comment">/*</span>
595
<a name="l00671"></a>00671 <span class="comment"> We paint to a pixmap first to have something scalable for printing</span>
596
<a name="l00672"></a>00672 <span class="comment"> ( f.e. in a Pdf document )</span>
597
<a name="l00673"></a>00673 <span class="comment"> */</span>
598
<a name="l00674"></a>00674
599
<a name="l00675"></a>00675 QPixmap pixmap(devRect.size());
600
<a name="l00676"></a>00676 QPainter pmPainter(&pixmap);
601
<a name="l00677"></a>00677 pmPainter.translate(-devRect.x(), -devRect.y());
602
<a name="l00678"></a>00678
603
<a name="l00679"></a>00679 <span class="keywordflow">if</span> ( orientation == Qt::Horizontal )
604
<a name="l00680"></a>00680 {
605
<a name="l00681"></a>00681 <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a> sMap = scaleMap;
606
<a name="l00682"></a>00682 sMap.<a class="code" href="class_qwt_scale_map.html#a9a63a0b2e4ff81b1df23d9f968cd5b8">setPaintInterval</a>(devRect.left(), devRect.right());
607
<a name="l00683"></a>00683
608
<a name="l00684"></a>00684 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> x = devRect.left(); x <= devRect.right(); x++ )
609
<a name="l00685"></a>00685 {
610
<a name="l00686"></a>00686 <span class="keyword">const</span> <span class="keywordtype">double</span> value = sMap.<a class="code" href="class_qwt_scale_map.html#00d883935e40cba917512e7567b3dab3">invTransform</a>(x);
611
<a name="l00687"></a>00687
612
<a name="l00688"></a>00688 <span class="keywordflow">if</span> ( colorMap.<a class="code" href="class_qwt_color_map.html#6a7defcce42e779c1596e277c78986c2">format</a>() == QwtColorMap::RGB )
613
<a name="l00689"></a>00689 c.setRgb(colorMap.<a class="code" href="class_qwt_color_map.html#6f8cae09331c9c6dbc11d7cc023e6665">rgb</a>(interval, value));
614
<a name="l00690"></a>00690 <span class="keywordflow">else</span>
615
<a name="l00691"></a>00691 c = colorTable[colorMap.<a class="code" href="class_qwt_color_map.html#87086a55e99e56bd7f42677826801815">colorIndex</a>(interval, value)];
616
<a name="l00692"></a>00692
617
<a name="l00693"></a>00693 pmPainter.setPen(c);
618
<a name="l00694"></a>00694 pmPainter.drawLine(x, devRect.top(), x, devRect.bottom());
619
<a name="l00695"></a>00695 }
620
<a name="l00696"></a>00696 }
621
<a name="l00697"></a>00697 <span class="keywordflow">else</span> <span class="comment">// Vertical</span>
622
<a name="l00698"></a>00698 {
623
<a name="l00699"></a>00699 <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a> sMap = scaleMap;
624
<a name="l00700"></a>00700 sMap.<a class="code" href="class_qwt_scale_map.html#a9a63a0b2e4ff81b1df23d9f968cd5b8">setPaintInterval</a>(devRect.bottom(), devRect.top());
625
<a name="l00701"></a>00701
626
<a name="l00702"></a>00702 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> y = devRect.top(); y <= devRect.bottom(); y++ )
627
<a name="l00703"></a>00703 {
628
<a name="l00704"></a>00704 <span class="keyword">const</span> <span class="keywordtype">double</span> value = sMap.<a class="code" href="class_qwt_scale_map.html#00d883935e40cba917512e7567b3dab3">invTransform</a>(y);
629
<a name="l00705"></a>00705
630
<a name="l00706"></a>00706 <span class="keywordflow">if</span> ( colorMap.<a class="code" href="class_qwt_color_map.html#6a7defcce42e779c1596e277c78986c2">format</a>() == QwtColorMap::RGB )
631
<a name="l00707"></a>00707 c.setRgb(colorMap.<a class="code" href="class_qwt_color_map.html#6f8cae09331c9c6dbc11d7cc023e6665">rgb</a>(interval, value));
632
<a name="l00708"></a>00708 <span class="keywordflow">else</span>
633
<a name="l00709"></a>00709 c = colorTable[colorMap.<a class="code" href="class_qwt_color_map.html#87086a55e99e56bd7f42677826801815">colorIndex</a>(interval, value)];
634
<a name="l00710"></a>00710
635
<a name="l00711"></a>00711 pmPainter.setPen(c);
636
<a name="l00712"></a>00712 pmPainter.drawLine(devRect.left(), y, devRect.right(), y);
637
<a name="l00713"></a>00713 }
638
<a name="l00714"></a>00714 }
639
<a name="l00715"></a>00715 pmPainter.end();
640
<a name="l00716"></a>00716 painter->drawPixmap(devRect, pixmap);
641
<a name="l00717"></a>00717 }
642
</pre></div><hr size="1"><address style="align: right;"><small>Generated on Sat May 24 18:47:39 2008 for Qwt User's Guide by
643
<a href="http://www.doxygen.org/index.html">
644
<img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.5.0 </small></address>
added
removed
qwt-5.1.1/doc/html/qwt__painter_8cpp-source.html
