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<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>
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="preprocessor">#include <qglobal.h></span>
30
<a name="l00011"></a>00011
31
<a name="l00012"></a>00012 <span class="preprocessor">#include <qpainter.h></span>
32
<a name="l00013"></a>00013 <span class="preprocessor">#if QT_VERSION >= 0x040100</span>
33
<a name="l00014"></a>00014 <span class="preprocessor"></span><span class="preprocessor">#include <qsvgrenderer.h></span>
34
<a name="l00015"></a>00015 <span class="preprocessor">#else</span>
35
<a name="l00016"></a>00016 <span class="preprocessor"></span><span class="preprocessor">#include <qbuffer.h></span>
36
<a name="l00017"></a>00017 <span class="preprocessor">#include <qpicture.h></span>
37
<a name="l00018"></a>00018 <span class="preprocessor">#endif</span>
38
<a name="l00019"></a>00019 <span class="preprocessor"></span><span class="preprocessor">#if QT_VERSION < 0x040000</span>
39
<a name="l00020"></a>00020 <span class="preprocessor"></span><span class="preprocessor">#include <qpaintdevicemetrics.h></span>
40
<a name="l00021"></a>00021 <span class="preprocessor">#endif</span>
41
<a name="l00022"></a>00022 <span class="preprocessor"></span><span class="preprocessor">#include "qwt_scale_map.h"</span>
42
<a name="l00023"></a>00023 <span class="preprocessor">#include "qwt_legend.h"</span>
43
<a name="l00024"></a>00024 <span class="preprocessor">#include "qwt_legend_item.h"</span>
44
<a name="l00025"></a>00025 <span class="preprocessor">#include "qwt_plot_svgitem.h"</span>
45
<a name="l00026"></a>00026
46
<a name="l00027"></a>00027 <span class="keyword">class </span>QwtPlotSvgItem::PrivateData
47
<a name="l00028"></a>00028 {
48
<a name="l00029"></a>00029 <span class="keyword">public</span>:
49
<a name="l00030"></a>00030 PrivateData()
50
<a name="l00031"></a>00031 {
51
<a name="l00032"></a>00032 }
52
<a name="l00033"></a>00033
53
<a name="l00034"></a>00034 <a class="code" href="qwt__double__rect_8h.html#0c0dc4d33592fac4ad94734d8e9c4152">QwtDoubleRect</a> <a class="code" href="class_qwt_plot_svg_item.html#ce858f2eb34fa461589be75168e7009e">boundingRect</a>;
54
<a name="l00035"></a>00035 <span class="preprocessor">#if QT_VERSION >= 0x040100</span>
55
<a name="l00036"></a>00036 <span class="preprocessor"></span> QSvgRenderer renderer;
56
<a name="l00037"></a>00037 <span class="preprocessor">#else</span>
57
<a name="l00038"></a>00038 <span class="preprocessor"></span> QPicture picture;
58
<a name="l00039"></a>00039 <span class="preprocessor">#endif</span>
59
<a name="l00040"></a>00040 <span class="preprocessor"></span>};
60
<a name="l00041"></a>00041
61
<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#3abdb947d71e457de120851922de3197">title</a>):
62
<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))
63
<a name="l00053"></a>00053 {
64
<a name="l00054"></a>00054 init();
65
<a name="l00055"></a>00055 }
66
<a name="l00056"></a>00056
67
<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):
68
<a name="l00067"></a>00067 <a class="code" href="class_qwt_plot_item.html">QwtPlotItem</a>(title)
69
<a name="l00068"></a>00068 {
70
<a name="l00069"></a>00069 init();
71
<a name="l00070"></a>00070 }
72
<a name="l00071"></a>00071
73
<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>()
74
<a name="l00074"></a>00074 {
75
<a name="l00075"></a>00075 <span class="keyword">delete</span> d_data;
76
<a name="l00076"></a>00076 }
77
<a name="l00077"></a>00077
78
<a name="l00078"></a>00078 <span class="keywordtype">void</span> QwtPlotSvgItem::init()
79
<a name="l00079"></a>00079 {
80
<a name="l00080"></a>00080 d_data = <span class="keyword">new</span> PrivateData();
81
<a name="l00081"></a>00081
82
<a name="l00082"></a>00082 <a class="code" href="class_qwt_plot_item.html#5a335be8ff488809a2cf7f4b734ad1b6">setItemAttribute</a>(QwtPlotItem::AutoScale, <span class="keyword">true</span>);
83
<a name="l00083"></a>00083 <a class="code" href="class_qwt_plot_item.html#5a335be8ff488809a2cf7f4b734ad1b6">setItemAttribute</a>(QwtPlotItem::Legend, <span class="keyword">false</span>);
84
<a name="l00084"></a>00084
85
<a name="l00085"></a>00085 <a class="code" href="class_qwt_plot_item.html#57d90e4146133b59d589c71b3a643e82">setZ</a>(8.0);
86
<a name="l00086"></a>00086 }
87
<a name="l00087"></a>00087
88
<a name="l00089"></a><a class="code" href="class_qwt_plot_svg_item.html#55cbae2059a056004995e3d3cc304123">00089</a> <span class="keywordtype">int</span> <a class="code" href="class_qwt_plot_svg_item.html#55cbae2059a056004995e3d3cc304123">QwtPlotSvgItem::rtti</a>()<span class="keyword"> const</span>
89
<a name="l00090"></a>00090 <span class="keyword"></span>{
90
<a name="l00091"></a>00091 <span class="keywordflow">return</span> QwtPlotItem::Rtti_PlotSVG;
91
<a name="l00092"></a>00092 }
92
<a name="l00093"></a>00093
93
<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> <a class="code" href="qwt__double__rect_8h.html#0c0dc4d33592fac4ad94734d8e9c4152">QwtDoubleRect</a> &rect,
94
<a name="l00103"></a>00103 <span class="keyword">const</span> QString &fileName)
95
<a name="l00104"></a>00104 {
96
<a name="l00105"></a>00105 d_data->boundingRect = rect;
97
<a name="l00106"></a>00106 <span class="preprocessor">#if QT_VERSION >= 0x040100</span>
98
<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);
99
<a name="l00108"></a>00108 <span class="preprocessor">#else</span>
100
<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>);
101
<a name="l00110"></a>00110 <span class="preprocessor">#endif</span>
102
<a name="l00111"></a>00111 <span class="preprocessor"></span> <a class="code" href="class_qwt_plot_item.html#d956fdbce5b0721abccce6d09fe4d5ce">itemChanged</a>();
103
<a name="l00112"></a>00112 <span class="keywordflow">return</span> ok;
104
<a name="l00113"></a>00113 }
105
<a name="l00114"></a>00114
106
<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> <a class="code" href="qwt__double__rect_8h.html#0c0dc4d33592fac4ad94734d8e9c4152">QwtDoubleRect</a> &rect,
107
<a name="l00124"></a>00124 <span class="keyword">const</span> QByteArray &data)
108
<a name="l00125"></a>00125 {
109
<a name="l00126"></a>00126 d_data->boundingRect = rect;
110
<a name="l00127"></a>00127 <span class="preprocessor">#if QT_VERSION >= 0x040100</span>
111
<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);
112
<a name="l00129"></a>00129 <span class="preprocessor">#else</span>
113
<a name="l00130"></a>00130 <span class="preprocessor"></span><span class="preprocessor">#if QT_VERSION >= 0x040000</span>
114
<a name="l00131"></a>00131 <span class="preprocessor"></span> QBuffer buffer(&(QByteArray&)data);
115
<a name="l00132"></a>00132 <span class="preprocessor">#else</span>
116
<a name="l00133"></a>00133 <span class="preprocessor"></span> QBuffer buffer(data);
117
<a name="l00134"></a>00134 <span class="preprocessor">#endif</span>
118
<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>);
119
<a name="l00136"></a>00136 <span class="preprocessor">#endif</span>
120
<a name="l00137"></a>00137 <span class="preprocessor"></span> <a class="code" href="class_qwt_plot_item.html#d956fdbce5b0721abccce6d09fe4d5ce">itemChanged</a>();
121
<a name="l00138"></a>00138 <span class="keywordflow">return</span> ok;
122
<a name="l00139"></a>00139 }
123
<a name="l00140"></a>00140
124
<a name="l00142"></a><a class="code" href="class_qwt_plot_svg_item.html#ce858f2eb34fa461589be75168e7009e">00142</a> <a class="code" href="qwt__double__rect_8h.html#0c0dc4d33592fac4ad94734d8e9c4152">QwtDoubleRect</a> <a class="code" href="class_qwt_plot_svg_item.html#ce858f2eb34fa461589be75168e7009e">QwtPlotSvgItem::boundingRect</a>()<span class="keyword"> const</span>
125
<a name="l00143"></a>00143 <span class="keyword"></span>{
126
<a name="l00144"></a>00144 <span class="keywordflow">return</span> d_data->boundingRect;
127
<a name="l00145"></a>00145 }
128
<a name="l00146"></a>00146
129
<a name="l00147"></a>00147 <span class="preprocessor">#if QT_VERSION >= 0x040100</span>
130
<a name="l00148"></a>00148 <span class="preprocessor"></span>
131
<a name="l00150"></a>00150 <span class="keyword">const</span> QSvgRenderer &QwtPlotSvgItem::renderer()<span class="keyword"> const</span>
132
<a name="l00151"></a>00151 <span class="keyword"></span>{
133
<a name="l00152"></a>00152 <span class="keywordflow">return</span> d_data->renderer;
134
<a name="l00153"></a>00153 }
135
<a name="l00154"></a>00154
136
<a name="l00156"></a>00156 QSvgRenderer &QwtPlotSvgItem::renderer()
137
<a name="l00157"></a>00157 {
138
<a name="l00158"></a>00158 <span class="keywordflow">return</span> d_data->renderer;
139
<a name="l00159"></a>00159 }
140
<a name="l00160"></a>00160 <span class="preprocessor">#endif</span>
141
<a name="l00161"></a>00161 <span class="preprocessor"></span>
142
<a name="l00170"></a><a class="code" href="class_qwt_plot_svg_item.html#ffe92d45c85a371a67d6b566b17a73f6">00170</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_plot_svg_item.html#ffe92d45c85a371a67d6b566b17a73f6">QwtPlotSvgItem::draw</a>(QPainter *painter,
143
<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,
144
<a name="l00172"></a>00172 <span class="keyword">const</span> QRect &canvasRect)<span class="keyword"> const</span>
145
<a name="l00173"></a>00173 <span class="keyword"></span>{
146
<a name="l00174"></a>00174 <span class="keyword">const</span> <a class="code" href="qwt__double__rect_8h.html#0c0dc4d33592fac4ad94734d8e9c4152">QwtDoubleRect</a> cRect = <a class="code" href="class_qwt_plot_item.html#01bc8299a1e06eac29907d717dede51a">invTransform</a>(xMap, yMap, canvasRect);
147
<a name="l00175"></a>00175 <span class="keyword">const</span> <a class="code" href="qwt__double__rect_8h.html#0c0dc4d33592fac4ad94734d8e9c4152">QwtDoubleRect</a> bRect = <a class="code" href="class_qwt_plot_svg_item.html#ce858f2eb34fa461589be75168e7009e">boundingRect</a>();
148
<a name="l00176"></a>00176 <span class="keywordflow">if</span> ( bRect.isValid() && cRect.isValid() )
149
<a name="l00177"></a>00177 {
150
<a name="l00178"></a>00178 <a class="code" href="qwt__double__rect_8h.html#0c0dc4d33592fac4ad94734d8e9c4152">QwtDoubleRect</a> rect = bRect;
151
<a name="l00179"></a>00179 <span class="keywordflow">if</span> ( bRect.contains(cRect) )
152
<a name="l00180"></a>00180 rect = cRect;
153
<a name="l00181"></a>00181
154
<a name="l00182"></a>00182 <span class="keyword">const</span> QRect r = <a class="code" href="class_qwt_plot_item.html#9adba4c37682d216740c714d23e97b53">transform</a>(xMap, yMap, rect);
155
<a name="l00183"></a>00183 <a class="code" href="class_qwt_plot_svg_item.html#349f60550ef301b1d8e408943a6f8fc3">render</a>(painter, <a class="code" href="class_qwt_plot_svg_item.html#15fc577e45c4a6204292cdacc060acd8">viewBox</a>(rect), r);
156
<a name="l00184"></a>00184 }
157
<a name="l00185"></a>00185 }
158
<a name="l00186"></a>00186
159
<a name="l00194"></a><a class="code" href="class_qwt_plot_svg_item.html#349f60550ef301b1d8e408943a6f8fc3">00194</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_plot_svg_item.html#349f60550ef301b1d8e408943a6f8fc3">QwtPlotSvgItem::render</a>(QPainter *painter,
160
<a name="l00195"></a>00195 <span class="keyword">const</span> <a class="code" href="qwt__double__rect_8h.html#0c0dc4d33592fac4ad94734d8e9c4152">QwtDoubleRect</a> &viewBox, <span class="keyword">const</span> QRect &rect)<span class="keyword"> const</span>
161
<a name="l00196"></a>00196 <span class="keyword"></span>{
162
<a name="l00197"></a>00197 <span class="keywordflow">if</span> ( !viewBox.isValid() )
163
<a name="l00198"></a>00198 <span class="keywordflow">return</span>;
164
<a name="l00199"></a>00199
165
<a name="l00200"></a>00200 <span class="preprocessor">#if QT_VERSION >= 0x040200</span>
166
<a name="l00201"></a>00201 <span class="preprocessor"></span> d_data->renderer.setViewBox(viewBox);
167
<a name="l00202"></a>00202 d_data->renderer.render(painter, rect);
168
<a name="l00203"></a>00203 <span class="keywordflow">return</span>;
169
<a name="l00204"></a>00204 <span class="preprocessor">#else</span>
170
<a name="l00205"></a>00205 <span class="preprocessor"></span>
171
<a name="l00206"></a>00206 <span class="preprocessor">#if QT_VERSION >= 0x040100</span>
172
<a name="l00207"></a>00207 <span class="preprocessor"></span> <span class="keyword">const</span> QSize paintSize(painter->window().width(),
173
<a name="l00208"></a>00208 painter->window().height());
174
<a name="l00209"></a>00209 <span class="keywordflow">if</span> ( !paintSize.isValid() )
175
<a name="l00210"></a>00210 <span class="keywordflow">return</span>;
176
<a name="l00211"></a>00211
177
<a name="l00212"></a>00212 <span class="keyword">const</span> <span class="keywordtype">double</span> xRatio = paintSize.width() / viewBox.width();
178
<a name="l00213"></a>00213 <span class="keyword">const</span> <span class="keywordtype">double</span> yRatio = paintSize.height() / viewBox.height();
179
<a name="l00214"></a>00214
180
<a name="l00215"></a>00215 <span class="keyword">const</span> <span class="keywordtype">double</span> dx = rect.left() / xRatio + 1.0;
181
<a name="l00216"></a>00216 <span class="keyword">const</span> <span class="keywordtype">double</span> dy = rect.top() / yRatio + 1.0;
182
<a name="l00217"></a>00217
183
<a name="l00218"></a>00218 <span class="keyword">const</span> <span class="keywordtype">double</span> mx = double(rect.width()) / paintSize.width();
184
<a name="l00219"></a>00219 <span class="keyword">const</span> <span class="keywordtype">double</span> my = double(rect.height()) / paintSize.height();
185
<a name="l00220"></a>00220
186
<a name="l00221"></a>00221 painter->save();
187
<a name="l00222"></a>00222
188
<a name="l00223"></a>00223 painter->translate(dx, dy);
189
<a name="l00224"></a>00224 painter->scale(mx, my);
190
<a name="l00225"></a>00225
191
<a name="l00226"></a>00226 d_data->renderer.setViewBox(viewBox.toRect());
192
<a name="l00227"></a>00227 d_data->renderer.render(painter);
193
<a name="l00228"></a>00228
194
<a name="l00229"></a>00229 painter->restore();
195
<a name="l00230"></a>00230 <span class="preprocessor">#else</span>
196
<a name="l00231"></a>00231 <span class="preprocessor"></span> <span class="keyword">const</span> <span class="keywordtype">double</span> mx = rect.width() / viewBox.width();
197
<a name="l00232"></a>00232 <span class="keyword">const</span> <span class="keywordtype">double</span> my = rect.height() / viewBox.height();
198
<a name="l00233"></a>00233 <span class="keyword">const</span> <span class="keywordtype">double</span> dx = rect.x() - mx * viewBox.x();
199
<a name="l00234"></a>00234 <span class="keyword">const</span> <span class="keywordtype">double</span> dy = rect.y() - my * viewBox.y();
200
<a name="l00235"></a>00235
201
<a name="l00236"></a>00236 painter->save();
202
<a name="l00237"></a>00237
203
<a name="l00238"></a>00238 painter->translate(dx, dy);
204
<a name="l00239"></a>00239 painter->scale(mx, my);
205
<a name="l00240"></a>00240
206
<a name="l00241"></a>00241 d_data->picture.play(painter);
207
<a name="l00242"></a>00242
208
<a name="l00243"></a>00243 painter->restore();
209
<a name="l00244"></a>00244 <span class="preprocessor">#endif // < 0x040100</span>
210
<a name="l00245"></a>00245 <span class="preprocessor"></span><span class="preprocessor">#endif // < 0x040200</span>
211
<a name="l00246"></a>00246 <span class="preprocessor"></span>}
212
<a name="l00247"></a>00247
213
<a name="l00254"></a><a class="code" href="class_qwt_plot_svg_item.html#15fc577e45c4a6204292cdacc060acd8">00254</a> <a class="code" href="qwt__double__rect_8h.html#0c0dc4d33592fac4ad94734d8e9c4152">QwtDoubleRect</a> <a class="code" href="class_qwt_plot_svg_item.html#15fc577e45c4a6204292cdacc060acd8">QwtPlotSvgItem::viewBox</a>(<span class="keyword">const</span> <a class="code" href="qwt__double__rect_8h.html#0c0dc4d33592fac4ad94734d8e9c4152">QwtDoubleRect</a> &rect)<span class="keyword"> const</span>
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<a name="l00255"></a>00255 <span class="keyword"></span>{
215
<a name="l00256"></a>00256 <span class="preprocessor">#if QT_VERSION >= 0x040100</span>
216
<a name="l00257"></a>00257 <span class="preprocessor"></span> <span class="keyword">const</span> QSize sz = d_data->renderer.defaultSize();
217
<a name="l00258"></a>00258 <span class="preprocessor">#else</span>
218
<a name="l00259"></a>00259 <span class="preprocessor"></span><span class="preprocessor">#if QT_VERSION > 0x040000</span>
219
<a name="l00260"></a>00260 <span class="preprocessor"></span> <span class="keyword">const</span> QSize sz(d_data->picture.width(),
220
<a name="l00261"></a>00261 d_data->picture.height());
221
<a name="l00262"></a>00262 <span class="preprocessor">#else</span>
222
<a name="l00263"></a>00263 <span class="preprocessor"></span> QPaintDeviceMetrics metrics(&d_data->picture);
223
<a name="l00264"></a>00264 <span class="keyword">const</span> QSize sz(metrics.width(), metrics.height());
224
<a name="l00265"></a>00265 <span class="preprocessor">#endif</span>
225
<a name="l00266"></a>00266 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
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<a name="l00267"></a>00267 <span class="preprocessor"></span> <span class="keyword">const</span> <a class="code" href="qwt__double__rect_8h.html#0c0dc4d33592fac4ad94734d8e9c4152">QwtDoubleRect</a> br = <a class="code" href="class_qwt_plot_svg_item.html#ce858f2eb34fa461589be75168e7009e">boundingRect</a>();
227
<a name="l00268"></a>00268
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<a name="l00269"></a>00269 <span class="keywordflow">if</span> ( !rect.isValid() || !br.isValid() || sz.isNull() )
229
<a name="l00270"></a>00270 <span class="keywordflow">return</span> <a class="code" href="qwt__double__rect_8h.html#0c0dc4d33592fac4ad94734d8e9c4152">QwtDoubleRect</a>();
230
<a name="l00271"></a>00271
231
<a name="l00272"></a>00272 <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a> xMap;
232
<a name="l00273"></a>00273 xMap.<a class="code" href="class_qwt_scale_map.html#aa33bc8e1aed7aa17d345053194e7094">setScaleInterval</a>(br.left(), br.right());
233
<a name="l00274"></a>00274 xMap.<a class="code" href="class_qwt_scale_map.html#a9a63a0b2e4ff81b1df23d9f968cd5b8">setPaintInterval</a>(0, sz.width());
234
<a name="l00275"></a>00275
235
<a name="l00276"></a>00276 <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a> yMap;
236
<a name="l00277"></a>00277 yMap.<a class="code" href="class_qwt_scale_map.html#aa33bc8e1aed7aa17d345053194e7094">setScaleInterval</a>(br.top(), br.bottom());
237
<a name="l00278"></a>00278 yMap.<a class="code" href="class_qwt_scale_map.html#a9a63a0b2e4ff81b1df23d9f968cd5b8">setPaintInterval</a>(sz.height(), 0);
238
<a name="l00279"></a>00279
239
<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#109a9289413291e2621fb95c1afb72af">xTransform</a>(rect.left());
240
<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#109a9289413291e2621fb95c1afb72af">xTransform</a>(rect.right());
241
<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#109a9289413291e2621fb95c1afb72af">xTransform</a>(rect.bottom());
242
<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#109a9289413291e2621fb95c1afb72af">xTransform</a>(rect.top());
243
<a name="l00284"></a>00284
244
<a name="l00285"></a>00285 <span class="keywordflow">return</span> <a class="code" href="qwt__double__rect_8h.html#0c0dc4d33592fac4ad94734d8e9c4152">QwtDoubleRect</a>(x1, y1, x2 - x1, y2 - y1);
245
<a name="l00286"></a>00286 }
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</pre></div><hr size="1"><address style="align: right;"><small>Generated on Sat May 24 18:47:40 2008 for Qwt User's Guide by
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<a href="http://www.doxygen.org/index.html">
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<img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.5.0 </small></address>
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