1
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
2
<html><head><meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1">
3
<title>Qwt User's Guide: qwt_plot_svgitem.cpp Source File</title>
4
<link href="doxygen.css" rel="stylesheet" type="text/css">
5
<link href="tabs.css" rel="stylesheet" type="text/css">
7
<!-- Generated by Doxygen 1.4.6 -->
10
<li><a href="index.html"><span>Main Page</span></a></li>
11
<li><a href="classes.html"><span>Classes</span></a></li>
12
<li id="current"><a href="files.html"><span>Files</span></a></li>
13
<li><a href="pages.html"><span>Related Pages</span></a></li>
15
<h1>qwt_plot_svgitem.cpp</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/* -*- mode: C++ ; c-file-style: "stroustrup" -*- *****************************</span>
16
<a name="l00002"></a>00002 <span class="comment"> * Qwt Widget Library</span>
17
<a name="l00003"></a>00003 <span class="comment"> * Copyright (C) 1997 Josef Wilgen</span>
18
<a name="l00004"></a>00004 <span class="comment"> * Copyright (C) 2002 Uwe Rathmann</span>
19
<a name="l00005"></a>00005 <span class="comment"> *</span>
20
<a name="l00006"></a>00006 <span class="comment"> * This library is free software; you can redistribute it and/or</span>
21
<a name="l00007"></a>00007 <span class="comment"> * modify it under the terms of the Qwt License, Version 1.0</span>
22
<a name="l00008"></a>00008 <span class="comment"> *****************************************************************************/</span>
23
<a name="l00009"></a>00009
24
<a name="l00010"></a>00010 <span class="preprocessor">#include <qglobal.h></span>
25
<a name="l00011"></a>00011
26
<a name="l00012"></a>00012 <span class="preprocessor">#include <qpainter.h></span>
27
<a name="l00013"></a>00013 <span class="preprocessor">#if QT_VERSION >= 0x040100</span>
28
<a name="l00014"></a>00014 <span class="preprocessor"></span><span class="preprocessor">#include <qsvgrenderer.h></span>
29
<a name="l00015"></a>00015 <span class="preprocessor">#else</span>
30
<a name="l00016"></a>00016 <span class="preprocessor"></span><span class="preprocessor">#include <qbuffer.h></span>
31
<a name="l00017"></a>00017 <span class="preprocessor">#include <qpicture.h></span>
32
<a name="l00018"></a>00018 <span class="preprocessor">#endif</span>
33
<a name="l00019"></a>00019 <span class="preprocessor"></span><span class="preprocessor">#if QT_VERSION < 0x040000</span>
34
<a name="l00020"></a>00020 <span class="preprocessor"></span><span class="preprocessor">#include <qpaintdevicemetrics.h></span>
35
<a name="l00021"></a>00021 <span class="preprocessor">#endif</span>
36
<a name="l00022"></a>00022 <span class="preprocessor"></span><span class="preprocessor">#include <qwt_scale_map.h></span>
37
<a name="l00023"></a>00023 <span class="preprocessor">#include <qwt_legend.h></span>
38
<a name="l00024"></a>00024 <span class="preprocessor">#include <qwt_legend_item.h></span>
39
<a name="l00025"></a>00025 <span class="preprocessor">#include "qwt_plot_svgitem.h"</span>
40
<a name="l00026"></a>00026
41
<a name="l00027"></a>00027 <span class="keyword">class </span>QwtPlotSvgItem::PrivateData
42
<a name="l00028"></a>00028 {
43
<a name="l00029"></a>00029 <span class="keyword">public</span>:
44
<a name="l00030"></a>00030 PrivateData()
45
<a name="l00031"></a>00031 {
46
<a name="l00032"></a>00032 }
47
<a name="l00033"></a>00033
48
<a name="l00034"></a>00034 QwtDoubleRect <a class="code" href="class_qwt_plot_svg_item.html#6d93e375e320cef36e00e88a8d9b7b36">boundingRect</a>;
49
<a name="l00035"></a>00035 <span class="preprocessor">#if QT_VERSION >= 0x040100</span>
50
<a name="l00036"></a>00036 <span class="preprocessor"></span> QSvgRenderer renderer;
51
<a name="l00037"></a>00037 <span class="preprocessor">#else</span>
52
<a name="l00038"></a>00038 <span class="preprocessor"></span> QPicture picture;
53
<a name="l00039"></a>00039 <span class="preprocessor">#endif</span>
54
<a name="l00040"></a>00040 <span class="preprocessor"></span>};
55
<a name="l00041"></a>00041
56
<a name="l00051"></a><a class="code" href="class_qwt_plot_svg_item.html#3b6e505f0ef1d9e40030db2a8b60762e">00051</a> <a class="code" href="class_qwt_plot_svg_item.html#3b6e505f0ef1d9e40030db2a8b60762e">QwtPlotSvgItem::QwtPlotSvgItem</a>(<span class="keyword">const</span> QString& <a class="code" href="class_qwt_plot_item.html#3859d011b670b5f89e45d1ccef9206f7">title</a>):
57
<a name="l00052"></a>00052 <a class="code" href="class_qwt_plot_item.html">QwtPlotItem</a>(<a class="code" href="class_qwt_text.html">QwtText</a>(title))
58
<a name="l00053"></a>00053 {
59
<a name="l00054"></a>00054 init();
60
<a name="l00055"></a>00055 }
61
<a name="l00056"></a>00056
62
<a name="l00066"></a><a class="code" href="class_qwt_plot_svg_item.html#c750a4ff902302ab485971fcea6bee38">00066</a> <a class="code" href="class_qwt_plot_svg_item.html#3b6e505f0ef1d9e40030db2a8b60762e">QwtPlotSvgItem::QwtPlotSvgItem</a>(<span class="keyword">const</span> <a class="code" href="class_qwt_text.html">QwtText</a>& title):
63
<a name="l00067"></a>00067 <a class="code" href="class_qwt_plot_item.html">QwtPlotItem</a>(title)
64
<a name="l00068"></a>00068 {
65
<a name="l00069"></a>00069 init();
66
<a name="l00070"></a>00070 }
67
<a name="l00071"></a>00071
68
<a name="l00073"></a><a class="code" href="class_qwt_plot_svg_item.html#4509baf861772124c71abd1b6514b319">00073</a> <a class="code" href="class_qwt_plot_svg_item.html#4509baf861772124c71abd1b6514b319">QwtPlotSvgItem::~QwtPlotSvgItem</a>()
69
<a name="l00074"></a>00074 {
70
<a name="l00075"></a>00075 <span class="keyword">delete</span> d_data;
71
<a name="l00076"></a>00076 }
72
<a name="l00077"></a>00077
73
<a name="l00078"></a>00078 <span class="keywordtype">void</span> QwtPlotSvgItem::init()
74
<a name="l00079"></a>00079 {
75
<a name="l00080"></a>00080 d_data = <span class="keyword">new</span> PrivateData();
76
<a name="l00081"></a>00081
77
<a name="l00082"></a>00082 <a class="code" href="class_qwt_plot_item.html#5a335be8ff488809a2cf7f4b734ad1b6">setItemAttribute</a>(QwtPlotItem::AutoScale, <span class="keyword">true</span>);
78
<a name="l00083"></a>00083 <a class="code" href="class_qwt_plot_item.html#5a335be8ff488809a2cf7f4b734ad1b6">setItemAttribute</a>(QwtPlotItem::Legend, <span class="keyword">false</span>);
79
<a name="l00084"></a>00084
80
<a name="l00085"></a>00085 <a class="code" href="class_qwt_plot_item.html#57d90e4146133b59d589c71b3a643e82">setZ</a>(8.0);
81
<a name="l00086"></a>00086 }
82
<a name="l00087"></a>00087
83
<a name="l00089"></a><a class="code" href="class_qwt_plot_svg_item.html#4331deca8a2ecdd6a7ebe1be7de22969">00089</a> <span class="keywordtype">int</span> <a class="code" href="class_qwt_plot_svg_item.html#4331deca8a2ecdd6a7ebe1be7de22969">QwtPlotSvgItem::rtti</a>()<span class="keyword"> const</span>
84
<a name="l00090"></a>00090 <span class="keyword"></span>{
85
<a name="l00091"></a>00091 <span class="keywordflow">return</span> QwtPlotItem::Rtti_PlotSVG;
86
<a name="l00092"></a>00092 }
87
<a name="l00093"></a>00093
88
<a name="l00102"></a><a class="code" href="class_qwt_plot_svg_item.html#b85890e7f1d89616c99fe34fa29f5d8f">00102</a> <span class="keywordtype">bool</span> <a class="code" href="class_qwt_plot_svg_item.html#b85890e7f1d89616c99fe34fa29f5d8f">QwtPlotSvgItem::loadFile</a>(<span class="keyword">const</span> QwtDoubleRect &rect,
89
<a name="l00103"></a>00103 <span class="keyword">const</span> QString &fileName)
90
<a name="l00104"></a>00104 {
91
<a name="l00105"></a>00105 d_data->boundingRect = rect;
92
<a name="l00106"></a>00106 <span class="preprocessor">#if QT_VERSION >= 0x040100</span>
93
<a name="l00107"></a>00107 <span class="preprocessor"></span> <span class="keyword">const</span> <span class="keywordtype">bool</span> ok = d_data->renderer.load(fileName);
94
<a name="l00108"></a>00108 <span class="preprocessor">#else</span>
95
<a name="l00109"></a>00109 <span class="preprocessor"></span> <span class="keyword">const</span> <span class="keywordtype">bool</span> ok = d_data->picture.load(fileName, <span class="stringliteral">"svg"</span>);
96
<a name="l00110"></a>00110 <span class="preprocessor">#endif</span>
97
<a name="l00111"></a>00111 <span class="preprocessor"></span> <a class="code" href="class_qwt_plot_item.html#d956fdbce5b0721abccce6d09fe4d5ce">itemChanged</a>();
98
<a name="l00112"></a>00112 <span class="keywordflow">return</span> ok;
99
<a name="l00113"></a>00113 }
100
<a name="l00114"></a>00114
101
<a name="l00123"></a><a class="code" href="class_qwt_plot_svg_item.html#f40a77332482f79aa4d5254a9123508d">00123</a> <span class="keywordtype">bool</span> <a class="code" href="class_qwt_plot_svg_item.html#f40a77332482f79aa4d5254a9123508d">QwtPlotSvgItem::loadData</a>(<span class="keyword">const</span> QwtDoubleRect &rect,
102
<a name="l00124"></a>00124 <span class="keyword">const</span> QByteArray &data)
103
<a name="l00125"></a>00125 {
104
<a name="l00126"></a>00126 d_data->boundingRect = rect;
105
<a name="l00127"></a>00127 <span class="preprocessor">#if QT_VERSION >= 0x040100</span>
106
<a name="l00128"></a>00128 <span class="preprocessor"></span> <span class="keyword">const</span> <span class="keywordtype">bool</span> ok = d_data->renderer.load(data);
107
<a name="l00129"></a>00129 <span class="preprocessor">#else</span>
108
<a name="l00130"></a>00130 <span class="preprocessor"></span><span class="preprocessor">#if QT_VERSION >= 0x040000</span>
109
<a name="l00131"></a>00131 <span class="preprocessor"></span> QBuffer buffer(&(QByteArray&)data);
110
<a name="l00132"></a>00132 <span class="preprocessor">#else</span>
111
<a name="l00133"></a>00133 <span class="preprocessor"></span> QBuffer buffer(data);
112
<a name="l00134"></a>00134 <span class="preprocessor">#endif</span>
113
<a name="l00135"></a>00135 <span class="preprocessor"></span> <span class="keyword">const</span> <span class="keywordtype">bool</span> ok = d_data->picture.load(&buffer, <span class="stringliteral">"svg"</span>);
114
<a name="l00136"></a>00136 <span class="preprocessor">#endif</span>
115
<a name="l00137"></a>00137 <span class="preprocessor"></span> <a class="code" href="class_qwt_plot_item.html#d956fdbce5b0721abccce6d09fe4d5ce">itemChanged</a>();
116
<a name="l00138"></a>00138 <span class="keywordflow">return</span> ok;
117
<a name="l00139"></a>00139 }
118
<a name="l00140"></a>00140
119
<a name="l00142"></a><a class="code" href="class_qwt_plot_svg_item.html#6d93e375e320cef36e00e88a8d9b7b36">00142</a> QwtDoubleRect <a class="code" href="class_qwt_plot_svg_item.html#6d93e375e320cef36e00e88a8d9b7b36">QwtPlotSvgItem::boundingRect</a>()<span class="keyword"> const</span>
120
<a name="l00143"></a>00143 <span class="keyword"></span>{
121
<a name="l00144"></a>00144 <span class="keywordflow">return</span> d_data->boundingRect;
122
<a name="l00145"></a>00145 }
123
<a name="l00146"></a>00146
124
<a name="l00147"></a>00147 <span class="preprocessor">#if QT_VERSION >= 0x040100</span>
125
<a name="l00148"></a>00148 <span class="preprocessor"></span>
126
<a name="l00150"></a>00150 <span class="keyword">const</span> QSvgRenderer &QwtPlotSvgItem::renderer()<span class="keyword"> const</span>
127
<a name="l00151"></a>00151 <span class="keyword"></span>{
128
<a name="l00152"></a>00152 <span class="keywordflow">return</span> d_data->renderer;
129
<a name="l00153"></a>00153 }
130
<a name="l00154"></a>00154
131
<a name="l00156"></a>00156 QSvgRenderer &QwtPlotSvgItem::renderer()
132
<a name="l00157"></a>00157 {
133
<a name="l00158"></a>00158 <span class="keywordflow">return</span> d_data->renderer;
134
<a name="l00159"></a>00159 }
135
<a name="l00160"></a>00160 <span class="preprocessor">#endif</span>
136
<a name="l00161"></a>00161 <span class="preprocessor"></span>
137
<a name="l00170"></a><a class="code" href="class_qwt_plot_svg_item.html#92bad3b08f42f1ac9399b48b734b4c44">00170</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_plot_svg_item.html#92bad3b08f42f1ac9399b48b734b4c44">QwtPlotSvgItem::draw</a>(QPainter *painter,
138
<a name="l00171"></a>00171 <span class="keyword">const</span> <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a> &xMap, <span class="keyword">const</span> <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a> &yMap,
139
<a name="l00172"></a>00172 <span class="keyword">const</span> QRect &canvasRect)<span class="keyword"> const</span>
140
<a name="l00173"></a>00173 <span class="keyword"></span>{
141
<a name="l00174"></a>00174 <span class="keyword">const</span> QwtDoubleRect cRect = <a class="code" href="class_qwt_plot_item.html#913adffa4cb6914f3248b7157b9bbf33">invTransform</a>(xMap, yMap, canvasRect);
142
<a name="l00175"></a>00175 <span class="keyword">const</span> QwtDoubleRect bRect = <a class="code" href="class_qwt_plot_svg_item.html#6d93e375e320cef36e00e88a8d9b7b36">boundingRect</a>();
143
<a name="l00176"></a>00176 <span class="keywordflow">if</span> ( bRect.isValid() && cRect.isValid() )
144
<a name="l00177"></a>00177 {
145
<a name="l00178"></a>00178 QwtDoubleRect rect = bRect;
146
<a name="l00179"></a>00179 <span class="keywordflow">if</span> ( bRect.contains(cRect) )
147
<a name="l00180"></a>00180 rect = cRect;
148
<a name="l00181"></a>00181
149
<a name="l00182"></a>00182 <a class="code" href="class_qwt_plot_svg_item.html#80d8b81daf93969e8e3a48ba244854d9">render</a>(painter, <a class="code" href="class_qwt_plot_svg_item.html#c8e4baf861294607837d1c4951687b1e">viewBox</a>(rect),
150
<a name="l00183"></a>00183 <a class="code" href="class_qwt_plot_item.html#ce79adb7c901ef5d729dba35265096c2">transform</a>(xMap, yMap, rect) );
151
<a name="l00184"></a>00184 }
152
<a name="l00185"></a>00185 }
153
<a name="l00186"></a>00186
154
<a name="l00194"></a><a class="code" href="class_qwt_plot_svg_item.html#80d8b81daf93969e8e3a48ba244854d9">00194</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_plot_svg_item.html#80d8b81daf93969e8e3a48ba244854d9">QwtPlotSvgItem::render</a>(QPainter *painter,
155
<a name="l00195"></a>00195 <span class="keyword">const</span> QwtDoubleRect &viewBox, <span class="keyword">const</span> QRect &rect)<span class="keyword"> const</span>
156
<a name="l00196"></a>00196 <span class="keyword"></span>{
157
<a name="l00197"></a>00197 <span class="keywordflow">if</span> ( !viewBox.isValid() )
158
<a name="l00198"></a>00198 <span class="keywordflow">return</span>;
159
<a name="l00199"></a>00199
160
<a name="l00200"></a>00200 <span class="preprocessor">#if QT_VERSION >= 0x040200</span>
161
<a name="l00201"></a>00201 <span class="preprocessor"></span> d_data->renderer.setViewBox(viewBox);
162
<a name="l00202"></a>00202 d_data->renderer.render(painter, rect);
163
<a name="l00203"></a>00203 <span class="keywordflow">return</span>;
164
<a name="l00204"></a>00204 <span class="preprocessor">#else</span>
165
<a name="l00205"></a>00205 <span class="preprocessor"></span>
166
<a name="l00206"></a>00206 <span class="preprocessor">#if QT_VERSION >= 0x040100</span>
167
<a name="l00207"></a>00207 <span class="preprocessor"></span> <span class="keyword">const</span> QSize paintSize(painter->window().width(),
168
<a name="l00208"></a>00208 painter->window().height());
169
<a name="l00209"></a>00209 <span class="keywordflow">if</span> ( !paintSize.isValid() )
170
<a name="l00210"></a>00210 <span class="keywordflow">return</span>;
171
<a name="l00211"></a>00211
172
<a name="l00212"></a>00212 <span class="keyword">const</span> <span class="keywordtype">double</span> xRatio = paintSize.width() / viewBox.width();
173
<a name="l00213"></a>00213 <span class="keyword">const</span> <span class="keywordtype">double</span> yRatio = paintSize.height() / viewBox.height();
174
<a name="l00214"></a>00214
175
<a name="l00215"></a>00215 <span class="keyword">const</span> <span class="keywordtype">double</span> dx = rect.left() / xRatio + 1.0;
176
<a name="l00216"></a>00216 <span class="keyword">const</span> <span class="keywordtype">double</span> dy = rect.top() / yRatio + 1.0;
177
<a name="l00217"></a>00217
178
<a name="l00218"></a>00218 <span class="keyword">const</span> <span class="keywordtype">double</span> mx = double(rect.width()) / paintSize.width();
179
<a name="l00219"></a>00219 <span class="keyword">const</span> <span class="keywordtype">double</span> my = double(rect.height()) / paintSize.height();
180
<a name="l00220"></a>00220
181
<a name="l00221"></a>00221 painter->save();
182
<a name="l00222"></a>00222
183
<a name="l00223"></a>00223 painter->translate(dx, dy);
184
<a name="l00224"></a>00224 painter->scale(mx, my);
185
<a name="l00225"></a>00225
186
<a name="l00226"></a>00226 d_data->renderer.setViewBox(viewBox.toRect());
187
<a name="l00227"></a>00227 d_data->renderer.render(painter);
188
<a name="l00228"></a>00228
189
<a name="l00229"></a>00229 painter->restore();
190
<a name="l00230"></a>00230 <span class="preprocessor">#else</span>
191
<a name="l00231"></a>00231 <span class="preprocessor"></span> <span class="keyword">const</span> <span class="keywordtype">double</span> mx = rect.width() / viewBox.width();
192
<a name="l00232"></a>00232 <span class="keyword">const</span> <span class="keywordtype">double</span> my = rect.height() / viewBox.height();
193
<a name="l00233"></a>00233 <span class="keyword">const</span> <span class="keywordtype">double</span> dx = rect.x() - mx * viewBox.x();
194
<a name="l00234"></a>00234 <span class="keyword">const</span> <span class="keywordtype">double</span> dy = rect.y() - my * viewBox.y();
195
<a name="l00235"></a>00235
196
<a name="l00236"></a>00236 painter->save();
197
<a name="l00237"></a>00237
198
<a name="l00238"></a>00238 painter->translate(dx, dy);
199
<a name="l00239"></a>00239 painter->scale(mx, my);
200
<a name="l00240"></a>00240
201
<a name="l00241"></a>00241 d_data->picture.play(painter);
202
<a name="l00242"></a>00242
203
<a name="l00243"></a>00243 painter->restore();
204
<a name="l00244"></a>00244 <span class="preprocessor">#endif // < 0x040100</span>
205
<a name="l00245"></a>00245 <span class="preprocessor"></span><span class="preprocessor">#endif // < 0x040200</span>
206
<a name="l00246"></a>00246 <span class="preprocessor"></span>}
207
<a name="l00247"></a>00247
208
<a name="l00254"></a><a class="code" href="class_qwt_plot_svg_item.html#c8e4baf861294607837d1c4951687b1e">00254</a> QwtDoubleRect <a class="code" href="class_qwt_plot_svg_item.html#c8e4baf861294607837d1c4951687b1e">QwtPlotSvgItem::viewBox</a>(<span class="keyword">const</span> QwtDoubleRect &rect)<span class="keyword"> const</span>
209
<a name="l00255"></a>00255 <span class="keyword"></span>{
210
<a name="l00256"></a>00256 <span class="preprocessor">#if QT_VERSION >= 0x040100</span>
211
<a name="l00257"></a>00257 <span class="preprocessor"></span> <span class="keyword">const</span> QSize sz = d_data->renderer.defaultSize();
212
<a name="l00258"></a>00258 <span class="preprocessor">#else</span>
213
<a name="l00259"></a>00259 <span class="preprocessor"></span><span class="preprocessor">#if QT_VERSION > 0x040000</span>
214
<a name="l00260"></a>00260 <span class="preprocessor"></span> <span class="keyword">const</span> QSize sz(d_data->picture.width(),
215
<a name="l00261"></a>00261 d_data->picture.height());
216
<a name="l00262"></a>00262 <span class="preprocessor">#else</span>
217
<a name="l00263"></a>00263 <span class="preprocessor"></span> QPaintDeviceMetrics metrics(&d_data->picture);
218
<a name="l00264"></a>00264 <span class="keyword">const</span> QSize sz(metrics.width(), metrics.height());
219
<a name="l00265"></a>00265 <span class="preprocessor">#endif</span>
220
<a name="l00266"></a>00266 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
221
<a name="l00267"></a>00267 <span class="preprocessor"></span> <span class="keyword">const</span> QwtDoubleRect br = <a class="code" href="class_qwt_plot_svg_item.html#6d93e375e320cef36e00e88a8d9b7b36">boundingRect</a>();
222
<a name="l00268"></a>00268
223
<a name="l00269"></a>00269 <span class="keywordflow">if</span> ( !rect.isValid() || !br.isValid() || sz.isNull() )
224
<a name="l00270"></a>00270 <span class="keywordflow">return</span> QwtDoubleRect();
225
<a name="l00271"></a>00271
226
<a name="l00272"></a>00272 <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a> xMap;
227
<a name="l00273"></a>00273 xMap.<a class="code" href="class_qwt_scale_map.html#aa33bc8e1aed7aa17d345053194e7094">setScaleInterval</a>(br.left(), br.right());
228
<a name="l00274"></a>00274 xMap.<a class="code" href="class_qwt_scale_map.html#a9a63a0b2e4ff81b1df23d9f968cd5b8">setPaintInterval</a>(0, sz.width());
229
<a name="l00275"></a>00275
230
<a name="l00276"></a>00276 <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a> yMap;
231
<a name="l00277"></a>00277 yMap.<a class="code" href="class_qwt_scale_map.html#aa33bc8e1aed7aa17d345053194e7094">setScaleInterval</a>(br.top(), br.bottom());
232
<a name="l00278"></a>00278 yMap.<a class="code" href="class_qwt_scale_map.html#a9a63a0b2e4ff81b1df23d9f968cd5b8">setPaintInterval</a>(sz.height(), 0);
233
<a name="l00279"></a>00279
234
<a name="l00280"></a>00280 <span class="keyword">const</span> <span class="keywordtype">double</span> x1 = xMap.<a class="code" href="class_qwt_scale_map.html#053cad00dd463f45c7e1591c9f2d8296">xTransform</a>(rect.left());
235
<a name="l00281"></a>00281 <span class="keyword">const</span> <span class="keywordtype">double</span> x2 = xMap.<a class="code" href="class_qwt_scale_map.html#053cad00dd463f45c7e1591c9f2d8296">xTransform</a>(rect.right());
236
<a name="l00282"></a>00282 <span class="keyword">const</span> <span class="keywordtype">double</span> y1 = yMap.<a class="code" href="class_qwt_scale_map.html#053cad00dd463f45c7e1591c9f2d8296">xTransform</a>(rect.bottom());
237
<a name="l00283"></a>00283 <span class="keyword">const</span> <span class="keywordtype">double</span> y2 = yMap.<a class="code" href="class_qwt_scale_map.html#053cad00dd463f45c7e1591c9f2d8296">xTransform</a>(rect.top());
238
<a name="l00284"></a>00284
239
<a name="l00285"></a>00285 <span class="keywordflow">return</span> QwtDoubleRect(x1, y1, x2 - x1, y2 - y1);
240
<a name="l00286"></a>00286 }
241
</pre></div><hr size="1"><address style="align: right;"><small>Generated on Mon Jun 11 07:41:38 2007 for Qwt User's Guide by
242
<a href="http://www.doxygen.org/index.html">
243
<img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.4.6 </small></address>