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<h1>qwt_plot_spectrogram.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 <qimage.h></span>
30
<a name="l00011"></a>00011 <span class="preprocessor">#include <qpen.h></span>
31
<a name="l00012"></a>00012 <span class="preprocessor">#include <qpainter.h></span>
32
<a name="l00013"></a>00013 <span class="preprocessor">#include "qwt_painter.h"</span>
33
<a name="l00014"></a>00014 <span class="preprocessor">#include "qwt_double_interval.h"</span>
34
<a name="l00015"></a>00015 <span class="preprocessor">#include "qwt_scale_map.h"</span>
35
<a name="l00016"></a>00016 <span class="preprocessor">#include "qwt_color_map.h"</span>
36
<a name="l00017"></a>00017 <span class="preprocessor">#include "qwt_plot_spectrogram.h"</span>
37
<a name="l00018"></a>00018
38
<a name="l00019"></a>00019 <span class="preprocessor">#if QT_VERSION < 0x040000</span>
39
<a name="l00020"></a>00020 <span class="preprocessor"></span><span class="keyword">typedef</span> QValueVector<QRgb> QwtColorTable;
40
<a name="l00021"></a>00021 <span class="preprocessor">#else</span>
41
<a name="l00022"></a>00022 <span class="preprocessor"></span><span class="keyword">typedef</span> QVector<QRgb> QwtColorTable;
42
<a name="l00023"></a>00023 <span class="preprocessor">#endif</span>
43
<a name="l00024"></a>00024 <span class="preprocessor"></span>
44
<a name="l00025"></a>00025 <span class="keyword">class </span>QwtPlotSpectrogramImage: <span class="keyword">public</span> QImage
45
<a name="l00026"></a>00026 {
46
<a name="l00027"></a>00027 <span class="comment">// This class hides some Qt3/Qt4 API differences</span>
47
<a name="l00028"></a>00028 <span class="keyword">public</span>:
48
<a name="l00029"></a>00029 QwtPlotSpectrogramImage(<span class="keyword">const</span> QSize &size, <a class="code" href="class_qwt_color_map.html#9e5570790910fa3894887bca7dc5a670">QwtColorMap::Format</a> format):
49
<a name="l00030"></a>00030 #if QT_VERSION < 0x040000
50
<a name="l00031"></a>00031 QImage(size, format == <a class="code" href="class_qwt_color_map.html">QwtColorMap</a>::RGB ? 32 : 8)
51
<a name="l00032"></a>00032 #else
52
<a name="l00033"></a>00033 QImage(size, format == <a class="code" href="class_qwt_color_map.html">QwtColorMap</a>::RGB
53
<a name="l00034"></a>00034 ? QImage::Format_ARGB32 : QImage::Format_Indexed8 )
54
<a name="l00035"></a>00035 #endif
55
<a name="l00036"></a>00036 {
56
<a name="l00037"></a>00037 }
57
<a name="l00038"></a>00038
58
<a name="l00039"></a>00039 QwtPlotSpectrogramImage(<span class="keyword">const</span> QImage &other):
59
<a name="l00040"></a>00040 QImage(other)
60
<a name="l00041"></a>00041 {
61
<a name="l00042"></a>00042 }
62
<a name="l00043"></a>00043
63
<a name="l00044"></a>00044 <span class="keywordtype">void</span> initColorTable(<span class="keyword">const</span> QImage& other)
64
<a name="l00045"></a>00045 {
65
<a name="l00046"></a>00046 <span class="preprocessor">#if QT_VERSION < 0x040000</span>
66
<a name="l00047"></a>00047 <span class="preprocessor"></span> <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> numColors = other.numColors();
67
<a name="l00048"></a>00048
68
<a name="l00049"></a>00049 setNumColors(numColors);
69
<a name="l00050"></a>00050 <span class="keywordflow">for</span> ( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i = 0; i < numColors; i++ )
70
<a name="l00051"></a>00051 setColor(i, other.color(i));
71
<a name="l00052"></a>00052 <span class="preprocessor">#else</span>
72
<a name="l00053"></a>00053 <span class="preprocessor"></span> setColorTable(other.colorTable());
73
<a name="l00054"></a>00054 <span class="preprocessor">#endif</span>
74
<a name="l00055"></a>00055 <span class="preprocessor"></span> }
75
<a name="l00056"></a>00056
76
<a name="l00057"></a>00057 <span class="preprocessor">#if QT_VERSION < 0x040000</span>
77
<a name="l00058"></a>00058 <span class="preprocessor"></span>
78
<a name="l00059"></a>00059 <span class="keywordtype">void</span> setColorTable(<span class="keyword">const</span> QwtColorTable &colorTable)
79
<a name="l00060"></a>00060 {
80
<a name="l00061"></a>00061 setNumColors(colorTable.size());
81
<a name="l00062"></a>00062 <span class="keywordflow">for</span> ( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i = 0; i < colorTable.size(); i++ )
82
<a name="l00063"></a>00063 setColor(i, colorTable[i]);
83
<a name="l00064"></a>00064 }
84
<a name="l00065"></a>00065
85
<a name="l00066"></a>00066 QwtColorTable colorTable()<span class="keyword"> const</span>
86
<a name="l00067"></a>00067 <span class="keyword"> </span>{
87
<a name="l00068"></a>00068 QwtColorTable table(numColors());
88
<a name="l00069"></a>00069 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i = 0; i < numColors(); i++ )
89
<a name="l00070"></a>00070 table[i] = color(i);
90
<a name="l00071"></a>00071
91
<a name="l00072"></a>00072 <span class="keywordflow">return</span> table;
92
<a name="l00073"></a>00073 }
93
<a name="l00074"></a>00074 <span class="preprocessor">#endif</span>
94
<a name="l00075"></a>00075 <span class="preprocessor"></span>};
95
<a name="l00076"></a>00076
96
<a name="l00077"></a>00077 <span class="keyword">class </span>QwtPlotSpectrogram::PrivateData
97
<a name="l00078"></a>00078 {
98
<a name="l00079"></a>00079 <span class="keyword">public</span>:
99
<a name="l00080"></a>00080 <span class="keyword">class </span>DummyData: <span class="keyword">public</span> <a class="code" href="class_qwt_raster_data.html">QwtRasterData</a>
100
<a name="l00081"></a>00081 {
101
<a name="l00082"></a>00082 <span class="keyword">public</span>:
102
<a name="l00083"></a>00083 <span class="keyword">virtual</span> <a class="code" href="class_qwt_raster_data.html">QwtRasterData</a> *copy()<span class="keyword"> const</span>
103
<a name="l00084"></a>00084 <span class="keyword"> </span>{
104
<a name="l00085"></a>00085 <span class="keywordflow">return</span> <span class="keyword">new</span> DummyData();
105
<a name="l00086"></a>00086 }
106
<a name="l00087"></a>00087
107
<a name="l00088"></a>00088 <span class="keyword">virtual</span> <span class="keywordtype">double</span> value(<span class="keywordtype">double</span>, <span class="keywordtype">double</span>)<span class="keyword"> const</span>
108
<a name="l00089"></a>00089 <span class="keyword"> </span>{
109
<a name="l00090"></a>00090 <span class="keywordflow">return</span> 0.0;
110
<a name="l00091"></a>00091 }
111
<a name="l00092"></a>00092
112
<a name="l00093"></a>00093 <span class="keyword">virtual</span> <a class="code" href="class_qwt_double_interval.html">QwtDoubleInterval</a> range()<span class="keyword"> const</span>
113
<a name="l00094"></a>00094 <span class="keyword"> </span>{
114
<a name="l00095"></a>00095 <span class="keywordflow">return</span> <a class="code" href="class_qwt_double_interval.html">QwtDoubleInterval</a>(0.0, 1.0);
115
<a name="l00096"></a>00096 }
116
<a name="l00097"></a>00097 };
117
<a name="l00098"></a>00098
118
<a name="l00099"></a>00099 PrivateData()
119
<a name="l00100"></a>00100 {
120
<a name="l00101"></a>00101 <a class="code" href="class_qwt_plot_spectrogram.html#b995378221dc8e7bafc93db5dc3d33d1">data</a> = <span class="keyword">new</span> DummyData();
121
<a name="l00102"></a>00102 <a class="code" href="class_qwt_plot_spectrogram.html#740884f3c15eed9d20e6e0384f22006d">colorMap</a> = <span class="keyword">new</span> <a class="code" href="class_qwt_linear_color_map.html">QwtLinearColorMap</a>();
122
<a name="l00103"></a>00103 displayMode = ImageMode;
123
<a name="l00104"></a>00104
124
<a name="l00105"></a>00105 conrecAttributes = QwtRasterData::IgnoreAllVerticesOnLevel;
125
<a name="l00106"></a>00106 conrecAttributes |= QwtRasterData::IgnoreOutOfRange;
126
<a name="l00107"></a>00107 }
127
<a name="l00108"></a>00108 ~PrivateData()
128
<a name="l00109"></a>00109 {
129
<a name="l00110"></a>00110 <span class="keyword">delete</span> <a class="code" href="class_qwt_plot_spectrogram.html#b995378221dc8e7bafc93db5dc3d33d1">data</a>;
130
<a name="l00111"></a>00111 <span class="keyword">delete</span> <a class="code" href="class_qwt_plot_spectrogram.html#740884f3c15eed9d20e6e0384f22006d">colorMap</a>;
131
<a name="l00112"></a>00112 }
132
<a name="l00113"></a>00113
133
<a name="l00114"></a>00114 <a class="code" href="class_qwt_raster_data.html">QwtRasterData</a> *<a class="code" href="class_qwt_plot_spectrogram.html#b995378221dc8e7bafc93db5dc3d33d1">data</a>;
134
<a name="l00115"></a>00115 <a class="code" href="class_qwt_color_map.html">QwtColorMap</a> *<a class="code" href="class_qwt_plot_spectrogram.html#740884f3c15eed9d20e6e0384f22006d">colorMap</a>;
135
<a name="l00116"></a>00116 <span class="keywordtype">int</span> displayMode;
136
<a name="l00117"></a>00117
137
<a name="l00118"></a>00118 QwtValueList <a class="code" href="class_qwt_plot_spectrogram.html#6295a47575db3023b80eb4ad06032aab">contourLevels</a>;
138
<a name="l00119"></a>00119 QPen <a class="code" href="class_qwt_plot_spectrogram.html#fd1ebcdd70da66632a996bb57f6102e3">defaultContourPen</a>;
139
<a name="l00120"></a>00120 <span class="keywordtype">int</span> conrecAttributes;
140
<a name="l00121"></a>00121 };
141
<a name="l00122"></a>00122
142
<a name="l00134"></a><a class="code" href="class_qwt_plot_spectrogram.html#e90c0431be329ecbefc7ed9ac77f5ed6">00134</a> <a class="code" href="class_qwt_plot_spectrogram.html#e90c0431be329ecbefc7ed9ac77f5ed6">QwtPlotSpectrogram::QwtPlotSpectrogram</a>(<span class="keyword">const</span> QString &<a class="code" href="class_qwt_plot_item.html#3abdb947d71e457de120851922de3197">title</a>):
143
<a name="l00135"></a>00135 <a class="code" href="class_qwt_plot_raster_item.html">QwtPlotRasterItem</a>(title)
144
<a name="l00136"></a>00136 {
145
<a name="l00137"></a>00137 d_data = <span class="keyword">new</span> PrivateData();
146
<a name="l00138"></a>00138
147
<a name="l00139"></a>00139 <a class="code" href="class_qwt_plot_item.html#5a335be8ff488809a2cf7f4b734ad1b6">setItemAttribute</a>(QwtPlotItem::AutoScale, <span class="keyword">true</span>);
148
<a name="l00140"></a>00140 <a class="code" href="class_qwt_plot_item.html#5a335be8ff488809a2cf7f4b734ad1b6">setItemAttribute</a>(QwtPlotItem::Legend, <span class="keyword">false</span>);
149
<a name="l00141"></a>00141
150
<a name="l00142"></a>00142 <a class="code" href="class_qwt_plot_item.html#57d90e4146133b59d589c71b3a643e82">setZ</a>(8.0);
151
<a name="l00143"></a>00143 }
152
<a name="l00144"></a>00144
153
<a name="l00146"></a><a class="code" href="class_qwt_plot_spectrogram.html#e76415d290cf4a512d07a17260b7a84a">00146</a> <a class="code" href="class_qwt_plot_spectrogram.html#e76415d290cf4a512d07a17260b7a84a">QwtPlotSpectrogram::~QwtPlotSpectrogram</a>()
154
<a name="l00147"></a>00147 {
155
<a name="l00148"></a>00148 <span class="keyword">delete</span> d_data;
156
<a name="l00149"></a>00149 }
157
<a name="l00150"></a>00150
158
<a name="l00152"></a><a class="code" href="class_qwt_plot_spectrogram.html#ee7e71657a0ecfd9b3d02a16d830360c">00152</a> <span class="keywordtype">int</span> <a class="code" href="class_qwt_plot_spectrogram.html#ee7e71657a0ecfd9b3d02a16d830360c">QwtPlotSpectrogram::rtti</a>()<span class="keyword"> const</span>
159
<a name="l00153"></a>00153 <span class="keyword"></span>{
160
<a name="l00154"></a>00154 <span class="keywordflow">return</span> QwtPlotItem::Rtti_PlotSpectrogram;
161
<a name="l00155"></a>00155 }
162
<a name="l00156"></a>00156
163
<a name="l00167"></a><a class="code" href="class_qwt_plot_spectrogram.html#482a82bcf1b9f2a9a75f527063b394a2">00167</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_plot_spectrogram.html#482a82bcf1b9f2a9a75f527063b394a2">QwtPlotSpectrogram::setDisplayMode</a>(<a class="code" href="class_qwt_plot_spectrogram.html#7f4904fe68b442d0f93040ea1fa1d062">DisplayMode</a> mode, <span class="keywordtype">bool</span> on)
164
<a name="l00168"></a>00168 {
165
<a name="l00169"></a>00169 <span class="keywordflow">if</span> ( on != <span class="keywordtype">bool</span>(mode & d_data->displayMode) )
166
<a name="l00170"></a>00170 {
167
<a name="l00171"></a>00171 <span class="keywordflow">if</span> ( on )
168
<a name="l00172"></a>00172 d_data->displayMode |= mode;
169
<a name="l00173"></a>00173 <span class="keywordflow">else</span>
170
<a name="l00174"></a>00174 d_data->displayMode &= ~mode;
171
<a name="l00175"></a>00175 }
172
<a name="l00176"></a>00176
173
<a name="l00177"></a>00177 <a class="code" href="class_qwt_plot_item.html#d956fdbce5b0721abccce6d09fe4d5ce">itemChanged</a>();
174
<a name="l00178"></a>00178 }
175
<a name="l00179"></a>00179
176
<a name="l00186"></a><a class="code" href="class_qwt_plot_spectrogram.html#292ec25eb59adaedf90eef45e98f4d38">00186</a> <span class="keywordtype">bool</span> <a class="code" href="class_qwt_plot_spectrogram.html#292ec25eb59adaedf90eef45e98f4d38">QwtPlotSpectrogram::testDisplayMode</a>(<a class="code" href="class_qwt_plot_spectrogram.html#7f4904fe68b442d0f93040ea1fa1d062">DisplayMode</a> mode)<span class="keyword"> const</span>
177
<a name="l00187"></a>00187 <span class="keyword"></span>{
178
<a name="l00188"></a>00188 <span class="keywordflow">return</span> (d_data->displayMode & mode);
179
<a name="l00189"></a>00189 }
180
<a name="l00190"></a>00190
181
<a name="l00202"></a><a class="code" href="class_qwt_plot_spectrogram.html#cafcf790efcc9488acdfb941c1532c59">00202</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_plot_spectrogram.html#cafcf790efcc9488acdfb941c1532c59">QwtPlotSpectrogram::setColorMap</a>(<span class="keyword">const</span> <a class="code" href="class_qwt_color_map.html">QwtColorMap</a> &colorMap)
182
<a name="l00203"></a>00203 {
183
<a name="l00204"></a>00204 <span class="keyword">delete</span> d_data->colorMap;
184
<a name="l00205"></a>00205 d_data->colorMap = <a class="code" href="class_qwt_plot_spectrogram.html#740884f3c15eed9d20e6e0384f22006d">colorMap</a>.<a class="code" href="class_qwt_color_map.html#c21886c4be363557902d24d1224c2a86">copy</a>();
185
<a name="l00206"></a>00206
186
<a name="l00207"></a>00207 <a class="code" href="class_qwt_plot_raster_item.html#547ce4d8d031b230226cfbd509ef65b5">invalidateCache</a>();
187
<a name="l00208"></a>00208 <a class="code" href="class_qwt_plot_item.html#d956fdbce5b0721abccce6d09fe4d5ce">itemChanged</a>();
188
<a name="l00209"></a>00209 }
189
<a name="l00210"></a>00210
190
<a name="l00215"></a><a class="code" href="class_qwt_plot_spectrogram.html#740884f3c15eed9d20e6e0384f22006d">00215</a> <span class="keyword">const</span> <a class="code" href="class_qwt_color_map.html">QwtColorMap</a> &<a class="code" href="class_qwt_plot_spectrogram.html#740884f3c15eed9d20e6e0384f22006d">QwtPlotSpectrogram::colorMap</a>()<span class="keyword"> const</span>
191
<a name="l00216"></a>00216 <span class="keyword"></span>{
192
<a name="l00217"></a>00217 <span class="keywordflow">return</span> *d_data->colorMap;
193
<a name="l00218"></a>00218 }
194
<a name="l00219"></a>00219
195
<a name="l00230"></a><a class="code" href="class_qwt_plot_spectrogram.html#fa3dea62acc8e5607e84bff8f50804b8">00230</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_plot_spectrogram.html#fa3dea62acc8e5607e84bff8f50804b8">QwtPlotSpectrogram::setDefaultContourPen</a>(<span class="keyword">const</span> QPen &pen)
196
<a name="l00231"></a>00231 {
197
<a name="l00232"></a>00232 <span class="keywordflow">if</span> ( pen != d_data->defaultContourPen )
198
<a name="l00233"></a>00233 {
199
<a name="l00234"></a>00234 d_data->defaultContourPen = pen;
200
<a name="l00235"></a>00235 <a class="code" href="class_qwt_plot_item.html#d956fdbce5b0721abccce6d09fe4d5ce">itemChanged</a>();
201
<a name="l00236"></a>00236 }
202
<a name="l00237"></a>00237 }
203
<a name="l00238"></a>00238
204
<a name="l00243"></a><a class="code" href="class_qwt_plot_spectrogram.html#fd1ebcdd70da66632a996bb57f6102e3">00243</a> QPen <a class="code" href="class_qwt_plot_spectrogram.html#fd1ebcdd70da66632a996bb57f6102e3">QwtPlotSpectrogram::defaultContourPen</a>()<span class="keyword"> const</span>
205
<a name="l00244"></a>00244 <span class="keyword"></span>{
206
<a name="l00245"></a>00245 <span class="keywordflow">return</span> d_data->defaultContourPen;
207
<a name="l00246"></a>00246 }
208
<a name="l00247"></a>00247
209
<a name="l00259"></a><a class="code" href="class_qwt_plot_spectrogram.html#9c5c16fcda0422739c5393e42be5af37">00259</a> QPen <a class="code" href="class_qwt_plot_spectrogram.html#9c5c16fcda0422739c5393e42be5af37">QwtPlotSpectrogram::contourPen</a>(<span class="keywordtype">double</span> level)<span class="keyword"> const</span>
210
<a name="l00260"></a>00260 <span class="keyword"></span>{
211
<a name="l00261"></a>00261 <span class="keyword">const</span> <a class="code" href="class_qwt_double_interval.html">QwtDoubleInterval</a> intensityRange = d_data->data->range();
212
<a name="l00262"></a>00262 <span class="keyword">const</span> QColor c(d_data->colorMap->rgb(intensityRange, level));
213
<a name="l00263"></a>00263
214
<a name="l00264"></a>00264 <span class="keywordflow">return</span> QPen(c);
215
<a name="l00265"></a>00265 }
216
<a name="l00266"></a>00266
217
<a name="l00276"></a><a class="code" href="class_qwt_plot_spectrogram.html#9cac5e8fbab6e98382e5ec68ac9e4fd8">00276</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_plot_spectrogram.html#9cac5e8fbab6e98382e5ec68ac9e4fd8">QwtPlotSpectrogram::setConrecAttribute</a>(
218
<a name="l00277"></a>00277 <a class="code" href="class_qwt_raster_data.html#8be376c4015dcb4adc207316bccf1140">QwtRasterData::ConrecAttribute</a> attribute, <span class="keywordtype">bool</span> on)
219
<a name="l00278"></a>00278 {
220
<a name="l00279"></a>00279 <span class="keywordflow">if</span> ( <span class="keywordtype">bool</span>(d_data->conrecAttributes & attribute) == on )
221
<a name="l00280"></a>00280 <span class="keywordflow">return</span>;
222
<a name="l00281"></a>00281
223
<a name="l00282"></a>00282 <span class="keywordflow">if</span> ( on )
224
<a name="l00283"></a>00283 d_data->conrecAttributes |= attribute;
225
<a name="l00284"></a>00284 <span class="keywordflow">else</span>
226
<a name="l00285"></a>00285 d_data->conrecAttributes &= ~attribute;
227
<a name="l00286"></a>00286
228
<a name="l00287"></a>00287 <a class="code" href="class_qwt_plot_item.html#d956fdbce5b0721abccce6d09fe4d5ce">itemChanged</a>();
229
<a name="l00288"></a>00288 }
230
<a name="l00289"></a>00289
231
<a name="l00299"></a><a class="code" href="class_qwt_plot_spectrogram.html#94d98ffbd53a10f3b2e8703d9f69639b">00299</a> <span class="keywordtype">bool</span> <a class="code" href="class_qwt_plot_spectrogram.html#94d98ffbd53a10f3b2e8703d9f69639b">QwtPlotSpectrogram::testConrecAttribute</a>(
232
<a name="l00300"></a>00300 <a class="code" href="class_qwt_raster_data.html#8be376c4015dcb4adc207316bccf1140">QwtRasterData::ConrecAttribute</a> attribute)<span class="keyword"> const</span>
233
<a name="l00301"></a>00301 <span class="keyword"></span>{
234
<a name="l00302"></a>00302 <span class="keywordflow">return</span> d_data->conrecAttributes & attribute;
235
<a name="l00303"></a>00303 }
236
<a name="l00304"></a>00304
237
<a name="l00313"></a><a class="code" href="class_qwt_plot_spectrogram.html#6703dd9e8806258cd8544f90a735e459">00313</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_plot_spectrogram.html#6703dd9e8806258cd8544f90a735e459">QwtPlotSpectrogram::setContourLevels</a>(<span class="keyword">const</span> QwtValueList &levels)
238
<a name="l00314"></a>00314 {
239
<a name="l00315"></a>00315 d_data->contourLevels = levels;
240
<a name="l00316"></a>00316 <span class="preprocessor">#if QT_VERSION >= 0x040000</span>
241
<a name="l00317"></a>00317 <span class="preprocessor"></span> qSort(d_data->contourLevels);
242
<a name="l00318"></a>00318 <span class="preprocessor">#else</span>
243
<a name="l00319"></a>00319 <span class="preprocessor"></span> qHeapSort(d_data->contourLevels);
244
<a name="l00320"></a>00320 <span class="preprocessor">#endif</span>
245
<a name="l00321"></a>00321 <span class="preprocessor"></span> <a class="code" href="class_qwt_plot_item.html#d956fdbce5b0721abccce6d09fe4d5ce">itemChanged</a>();
246
<a name="l00322"></a>00322 }
247
<a name="l00323"></a>00323
248
<a name="l00331"></a><a class="code" href="class_qwt_plot_spectrogram.html#6295a47575db3023b80eb4ad06032aab">00331</a> QwtValueList <a class="code" href="class_qwt_plot_spectrogram.html#6295a47575db3023b80eb4ad06032aab">QwtPlotSpectrogram::contourLevels</a>()<span class="keyword"> const</span>
249
<a name="l00332"></a>00332 <span class="keyword"></span>{
250
<a name="l00333"></a>00333 <span class="keywordflow">return</span> d_data->contourLevels;
251
<a name="l00334"></a>00334 }
252
<a name="l00335"></a>00335
253
<a name="l00342"></a><a class="code" href="class_qwt_plot_spectrogram.html#72c5c1424b3dd6a391c7944994e30978">00342</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_plot_spectrogram.html#72c5c1424b3dd6a391c7944994e30978">QwtPlotSpectrogram::setData</a>(<span class="keyword">const</span> <a class="code" href="class_qwt_raster_data.html">QwtRasterData</a> &data)
254
<a name="l00343"></a>00343 {
255
<a name="l00344"></a>00344 <span class="keyword">delete</span> d_data->data;
256
<a name="l00345"></a>00345 d_data->data = <a class="code" href="class_qwt_plot_spectrogram.html#b995378221dc8e7bafc93db5dc3d33d1">data</a>.<a class="code" href="class_qwt_raster_data.html#6fb61a7458f7a34f871f765f2b9d4eae">copy</a>();
257
<a name="l00346"></a>00346
258
<a name="l00347"></a>00347 <a class="code" href="class_qwt_plot_raster_item.html#547ce4d8d031b230226cfbd509ef65b5">invalidateCache</a>();
259
<a name="l00348"></a>00348 <a class="code" href="class_qwt_plot_item.html#d956fdbce5b0721abccce6d09fe4d5ce">itemChanged</a>();
260
<a name="l00349"></a>00349 }
261
<a name="l00350"></a>00350
262
<a name="l00355"></a><a class="code" href="class_qwt_plot_spectrogram.html#b995378221dc8e7bafc93db5dc3d33d1">00355</a> <span class="keyword">const</span> <a class="code" href="class_qwt_raster_data.html">QwtRasterData</a> &<a class="code" href="class_qwt_plot_spectrogram.html#b995378221dc8e7bafc93db5dc3d33d1">QwtPlotSpectrogram::data</a>()<span class="keyword"> const</span>
263
<a name="l00356"></a>00356 <span class="keyword"></span>{
264
<a name="l00357"></a>00357 <span class="keywordflow">return</span> *d_data->data;
265
<a name="l00358"></a>00358 }
266
<a name="l00359"></a>00359
267
<a name="l00364"></a><a class="code" href="class_qwt_plot_spectrogram.html#063f21a8f29e3064ea8af9815096645a">00364</a> <a class="code" href="qwt__double__rect_8h.html#0c0dc4d33592fac4ad94734d8e9c4152">QwtDoubleRect</a> <a class="code" href="class_qwt_plot_spectrogram.html#063f21a8f29e3064ea8af9815096645a">QwtPlotSpectrogram::boundingRect</a>()<span class="keyword"> const</span>
268
<a name="l00365"></a>00365 <span class="keyword"></span>{
269
<a name="l00366"></a>00366 <span class="keywordflow">return</span> d_data->data->boundingRect();
270
<a name="l00367"></a>00367 }
271
<a name="l00368"></a>00368
272
<a name="l00378"></a><a class="code" href="class_qwt_plot_spectrogram.html#be339f781bc38f23dd1691b869a41a13">00378</a> QSize <a class="code" href="class_qwt_plot_spectrogram.html#be339f781bc38f23dd1691b869a41a13">QwtPlotSpectrogram::rasterHint</a>(<span class="keyword">const</span> <a class="code" href="qwt__double__rect_8h.html#0c0dc4d33592fac4ad94734d8e9c4152">QwtDoubleRect</a> &rect)<span class="keyword"> const</span>
273
<a name="l00379"></a>00379 <span class="keyword"></span>{
274
<a name="l00380"></a>00380 <span class="keywordflow">return</span> d_data->data->rasterHint(rect);
275
<a name="l00381"></a>00381 }
276
<a name="l00382"></a>00382
277
<a name="l00400"></a><a class="code" href="class_qwt_plot_spectrogram.html#b9a6e8cfe81e5d7621a522b685967429">00400</a> QImage <a class="code" href="class_qwt_plot_spectrogram.html#b9a6e8cfe81e5d7621a522b685967429">QwtPlotSpectrogram::renderImage</a>(
278
<a name="l00401"></a>00401 <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,
279
<a name="l00402"></a>00402 <span class="keyword">const</span> <a class="code" href="qwt__double__rect_8h.html#0c0dc4d33592fac4ad94734d8e9c4152">QwtDoubleRect</a> &area)<span class="keyword"> const</span>
280
<a name="l00403"></a>00403 <span class="keyword"></span>{
281
<a name="l00404"></a>00404 <span class="keywordflow">if</span> ( area.isEmpty() )
282
<a name="l00405"></a>00405 <span class="keywordflow">return</span> QImage();
283
<a name="l00406"></a>00406
284
<a name="l00407"></a>00407 QRect rect = <a class="code" href="class_qwt_plot_item.html#9adba4c37682d216740c714d23e97b53">transform</a>(xMap, yMap, area);
285
<a name="l00408"></a>00408
286
<a name="l00409"></a>00409 <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a> xxMap = xMap;
287
<a name="l00410"></a>00410 <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a> yyMap = yMap;
288
<a name="l00411"></a>00411
289
<a name="l00412"></a>00412 <span class="keyword">const</span> QSize res = d_data->data->rasterHint(area);
290
<a name="l00413"></a>00413 <span class="keywordflow">if</span> ( res.isValid() )
291
<a name="l00414"></a>00414 {
292
<a name="l00415"></a>00415 <span class="comment">/*</span>
293
<a name="l00416"></a>00416 <span class="comment"> It is useless to render an image with a higher resolution</span>
294
<a name="l00417"></a>00417 <span class="comment"> than the data offers. Of course someone will have to</span>
295
<a name="l00418"></a>00418 <span class="comment"> scale this image later into the size of the given rect, but f.e.</span>
296
<a name="l00419"></a>00419 <span class="comment"> in case of postscript this will done on the printer.</span>
297
<a name="l00420"></a>00420 <span class="comment"> */</span>
298
<a name="l00421"></a>00421 rect.setSize(rect.size().boundedTo(res));
299
<a name="l00422"></a>00422
300
<a name="l00423"></a>00423 <span class="keywordtype">int</span> px1 = rect.x();
301
<a name="l00424"></a>00424 <span class="keywordtype">int</span> px2 = rect.x() + rect.width();
302
<a name="l00425"></a>00425 <span class="keywordflow">if</span> ( xMap.<a class="code" href="class_qwt_scale_map.html#4d03a9fea3bd9b66a0b882b8b1a58f4b">p1</a>() > xMap.<a class="code" href="class_qwt_scale_map.html#cd78b70fae83854a148fa3d08b13c261">p2</a>() )
303
<a name="l00426"></a>00426 qSwap(px1, px2);
304
<a name="l00427"></a>00427
305
<a name="l00428"></a>00428 <span class="keywordtype">double</span> sx1 = area.x();
306
<a name="l00429"></a>00429 <span class="keywordtype">double</span> sx2 = area.x() + area.width();
307
<a name="l00430"></a>00430 <span class="keywordflow">if</span> ( xMap.<a class="code" href="class_qwt_scale_map.html#64b15c76aa63a521447215018c75bf37">s1</a>() > xMap.<a class="code" href="class_qwt_scale_map.html#7c8c969923c15880c4620be1d814ef18">s2</a>() )
308
<a name="l00431"></a>00431 qSwap(sx1, sx2);
309
<a name="l00432"></a>00432
310
<a name="l00433"></a>00433 <span class="keywordtype">int</span> py1 = rect.y();
311
<a name="l00434"></a>00434 <span class="keywordtype">int</span> py2 = rect.y() + rect.height();
312
<a name="l00435"></a>00435 <span class="keywordflow">if</span> ( yMap.<a class="code" href="class_qwt_scale_map.html#4d03a9fea3bd9b66a0b882b8b1a58f4b">p1</a>() > yMap.<a class="code" href="class_qwt_scale_map.html#cd78b70fae83854a148fa3d08b13c261">p2</a>() )
313
<a name="l00436"></a>00436 qSwap(py1, py2);
314
<a name="l00437"></a>00437
315
<a name="l00438"></a>00438 <span class="keywordtype">double</span> sy1 = area.y();
316
<a name="l00439"></a>00439 <span class="keywordtype">double</span> sy2 = area.y() + area.height();
317
<a name="l00440"></a>00440 <span class="keywordflow">if</span> ( yMap.<a class="code" href="class_qwt_scale_map.html#64b15c76aa63a521447215018c75bf37">s1</a>() > yMap.<a class="code" href="class_qwt_scale_map.html#7c8c969923c15880c4620be1d814ef18">s2</a>() )
318
<a name="l00441"></a>00441 qSwap(sy1, sy2);
319
<a name="l00442"></a>00442
320
<a name="l00443"></a>00443 xxMap.<a class="code" href="class_qwt_scale_map.html#a9a63a0b2e4ff81b1df23d9f968cd5b8">setPaintInterval</a>(px1, px2);
321
<a name="l00444"></a>00444 xxMap.<a class="code" href="class_qwt_scale_map.html#aa33bc8e1aed7aa17d345053194e7094">setScaleInterval</a>(sx1, sx2);
322
<a name="l00445"></a>00445 yyMap.<a class="code" href="class_qwt_scale_map.html#a9a63a0b2e4ff81b1df23d9f968cd5b8">setPaintInterval</a>(py1, py2);
323
<a name="l00446"></a>00446 yyMap.<a class="code" href="class_qwt_scale_map.html#aa33bc8e1aed7aa17d345053194e7094">setScaleInterval</a>(sy1, sy2);
324
<a name="l00447"></a>00447 }
325
<a name="l00448"></a>00448
326
<a name="l00449"></a>00449 QwtPlotSpectrogramImage image(rect.size(), d_data->colorMap->format());
327
<a name="l00450"></a>00450
328
<a name="l00451"></a>00451 <span class="keyword">const</span> <a class="code" href="class_qwt_double_interval.html">QwtDoubleInterval</a> intensityRange = d_data->data->range();
329
<a name="l00452"></a>00452 <span class="keywordflow">if</span> ( !intensityRange.isValid() )
330
<a name="l00453"></a>00453 <span class="keywordflow">return</span> image;
331
<a name="l00454"></a>00454
332
<a name="l00455"></a>00455 d_data->data->initRaster(area, rect.size());
333
<a name="l00456"></a>00456
334
<a name="l00457"></a>00457 <span class="keywordflow">if</span> ( d_data->colorMap->format() == QwtColorMap::RGB )
335
<a name="l00458"></a>00458 {
336
<a name="l00459"></a>00459 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> y = rect.top(); y <= rect.bottom(); y++ )
337
<a name="l00460"></a>00460 {
338
<a name="l00461"></a>00461 <span class="keyword">const</span> <span class="keywordtype">double</span> ty = yyMap.<a class="code" href="class_qwt_scale_map.html#00d883935e40cba917512e7567b3dab3">invTransform</a>(y);
339
<a name="l00462"></a>00462
340
<a name="l00463"></a>00463 QRgb *line = (QRgb *)image.scanLine(y - rect.top());
341
<a name="l00464"></a>00464 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> x = rect.left(); x <= rect.right(); x++ )
342
<a name="l00465"></a>00465 {
343
<a name="l00466"></a>00466 <span class="keyword">const</span> <span class="keywordtype">double</span> tx = xxMap.<a class="code" href="class_qwt_scale_map.html#00d883935e40cba917512e7567b3dab3">invTransform</a>(x);
344
<a name="l00467"></a>00467
345
<a name="l00468"></a>00468 *line++ = d_data->colorMap->rgb(intensityRange,
346
<a name="l00469"></a>00469 d_data->data->value(tx, ty));
347
<a name="l00470"></a>00470 }
348
<a name="l00471"></a>00471 }
349
<a name="l00472"></a>00472 }
350
<a name="l00473"></a>00473 <span class="keywordflow">else</span> <span class="keywordflow">if</span> ( d_data->colorMap->format() == QwtColorMap::Indexed )
351
<a name="l00474"></a>00474 {
352
<a name="l00475"></a>00475 image.setColorTable(d_data->colorMap->colorTable(intensityRange));
353
<a name="l00476"></a>00476
354
<a name="l00477"></a>00477 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> y = rect.top(); y <= rect.bottom(); y++ )
355
<a name="l00478"></a>00478 {
356
<a name="l00479"></a>00479 <span class="keyword">const</span> <span class="keywordtype">double</span> ty = yyMap.<a class="code" href="class_qwt_scale_map.html#00d883935e40cba917512e7567b3dab3">invTransform</a>(y);
357
<a name="l00480"></a>00480
358
<a name="l00481"></a>00481 <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *line = image.scanLine(y - rect.top());
359
<a name="l00482"></a>00482 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> x = rect.left(); x <= rect.right(); x++ )
360
<a name="l00483"></a>00483 {
361
<a name="l00484"></a>00484 <span class="keyword">const</span> <span class="keywordtype">double</span> tx = xxMap.<a class="code" href="class_qwt_scale_map.html#00d883935e40cba917512e7567b3dab3">invTransform</a>(x);
362
<a name="l00485"></a>00485
363
<a name="l00486"></a>00486 *line++ = d_data->colorMap->colorIndex(intensityRange,
364
<a name="l00487"></a>00487 d_data->data->value(tx, ty));
365
<a name="l00488"></a>00488 }
366
<a name="l00489"></a>00489 }
367
<a name="l00490"></a>00490 }
368
<a name="l00491"></a>00491
369
<a name="l00492"></a>00492 d_data->data->discardRaster();
370
<a name="l00493"></a>00493
371
<a name="l00494"></a>00494 <span class="comment">// Mirror the image in case of inverted maps</span>
372
<a name="l00495"></a>00495
373
<a name="l00496"></a>00496 <span class="keyword">const</span> <span class="keywordtype">bool</span> hInvert = xxMap.<a class="code" href="class_qwt_scale_map.html#4d03a9fea3bd9b66a0b882b8b1a58f4b">p1</a>() > xxMap.<a class="code" href="class_qwt_scale_map.html#cd78b70fae83854a148fa3d08b13c261">p2</a>();
374
<a name="l00497"></a>00497 <span class="keyword">const</span> <span class="keywordtype">bool</span> vInvert = yyMap.<a class="code" href="class_qwt_scale_map.html#4d03a9fea3bd9b66a0b882b8b1a58f4b">p1</a>() < yyMap.<a class="code" href="class_qwt_scale_map.html#cd78b70fae83854a148fa3d08b13c261">p2</a>();
375
<a name="l00498"></a>00498 <span class="keywordflow">if</span> ( hInvert || vInvert )
376
<a name="l00499"></a>00499 {
377
<a name="l00500"></a>00500 <span class="preprocessor">#ifdef __GNUC__</span>
378
<a name="l00501"></a>00501 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
379
<a name="l00502"></a>00502 <span class="preprocessor"></span><span class="preprocessor">#if QT_VERSION < 0x040000</span>
380
<a name="l00503"></a>00503 <span class="preprocessor"></span> image = image.mirror(hInvert, vInvert);
381
<a name="l00504"></a>00504 <span class="preprocessor">#else</span>
382
<a name="l00505"></a>00505 <span class="preprocessor"></span> image = image.mirrored(hInvert, vInvert);
383
<a name="l00506"></a>00506 <span class="preprocessor">#endif</span>
384
<a name="l00507"></a>00507 <span class="preprocessor"></span> }
385
<a name="l00508"></a>00508
386
<a name="l00509"></a>00509 <span class="keywordflow">return</span> image;
387
<a name="l00510"></a>00510 }
388
<a name="l00511"></a>00511
389
<a name="l00529"></a><a class="code" href="class_qwt_plot_spectrogram.html#635d011aec42598cdfdf55df23078695">00529</a> QSize <a class="code" href="class_qwt_plot_spectrogram.html#635d011aec42598cdfdf55df23078695">QwtPlotSpectrogram::contourRasterSize</a>(<span class="keyword">const</span> <a class="code" href="qwt__double__rect_8h.html#0c0dc4d33592fac4ad94734d8e9c4152">QwtDoubleRect</a> &area,
390
<a name="l00530"></a>00530 <span class="keyword">const</span> QRect &rect)<span class="keyword"> const</span>
391
<a name="l00531"></a>00531 <span class="keyword"></span>{
392
<a name="l00532"></a>00532 QSize raster = rect.size() / 2;
393
<a name="l00533"></a>00533
394
<a name="l00534"></a>00534 <span class="keyword">const</span> QSize <a class="code" href="class_qwt_plot_spectrogram.html#be339f781bc38f23dd1691b869a41a13">rasterHint</a> = d_data->data->rasterHint(area);
395
<a name="l00535"></a>00535 <span class="keywordflow">if</span> ( rasterHint.isValid() )
396
<a name="l00536"></a>00536 raster = raster.boundedTo(rasterHint);
397
<a name="l00537"></a>00537
398
<a name="l00538"></a>00538 <span class="keywordflow">return</span> raster;
399
<a name="l00539"></a>00539 }
400
<a name="l00540"></a>00540
401
<a name="l00549"></a><a class="code" href="class_qwt_plot_spectrogram.html#07d413080f75a7d6206785fecca94a2b">00549</a> <a class="code" href="class_qwt_raster_data.html#dc6679160a229992f0870a2b784985f3">QwtRasterData::ContourLines</a> <a class="code" href="class_qwt_plot_spectrogram.html#07d413080f75a7d6206785fecca94a2b">QwtPlotSpectrogram::renderContourLines</a>(
402
<a name="l00550"></a>00550 <span class="keyword">const</span> <a class="code" href="qwt__double__rect_8h.html#0c0dc4d33592fac4ad94734d8e9c4152">QwtDoubleRect</a> &rect, <span class="keyword">const</span> QSize &raster)<span class="keyword"> const</span>
403
<a name="l00551"></a>00551 <span class="keyword"></span>{
404
<a name="l00552"></a>00552 <span class="keywordflow">return</span> d_data->data->contourLines(rect, raster,
405
<a name="l00553"></a>00553 d_data->contourLevels, d_data->conrecAttributes );
406
<a name="l00554"></a>00554 }
407
<a name="l00555"></a>00555
408
<a name="l00566"></a><a class="code" href="class_qwt_plot_spectrogram.html#48f1b2133cb7ca8b443bb25a4c9501ff">00566</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_plot_spectrogram.html#48f1b2133cb7ca8b443bb25a4c9501ff">QwtPlotSpectrogram::drawContourLines</a>(QPainter *painter,
409
<a name="l00567"></a>00567 <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,
410
<a name="l00568"></a>00568 <span class="keyword">const</span> <a class="code" href="class_qwt_raster_data.html#dc6679160a229992f0870a2b784985f3">QwtRasterData::ContourLines</a> &contourLines)<span class="keyword"> const</span>
411
<a name="l00569"></a>00569 <span class="keyword"></span>{
412
<a name="l00570"></a>00570 <span class="keyword">const</span> <a class="code" href="class_qwt_double_interval.html">QwtDoubleInterval</a> intensityRange = d_data->data->range();
413
<a name="l00571"></a>00571
414
<a name="l00572"></a>00572 <span class="keyword">const</span> <span class="keywordtype">int</span> numLevels = (int)d_data->contourLevels.size();
415
<a name="l00573"></a>00573 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> l = 0; l < numLevels; l++)
416
<a name="l00574"></a>00574 {
417
<a name="l00575"></a>00575 <span class="keyword">const</span> <span class="keywordtype">double</span> level = d_data->contourLevels[l];
418
<a name="l00576"></a>00576
419
<a name="l00577"></a>00577 QPen pen = <a class="code" href="class_qwt_plot_spectrogram.html#fd1ebcdd70da66632a996bb57f6102e3">defaultContourPen</a>();
420
<a name="l00578"></a>00578 <span class="keywordflow">if</span> ( pen.style() == Qt::NoPen )
421
<a name="l00579"></a>00579 pen = <a class="code" href="class_qwt_plot_spectrogram.html#9c5c16fcda0422739c5393e42be5af37">contourPen</a>(level);
422
<a name="l00580"></a>00580
423
<a name="l00581"></a>00581 <span class="keywordflow">if</span> ( pen.style() == Qt::NoPen )
424
<a name="l00582"></a>00582 <span class="keywordflow">continue</span>;
425
<a name="l00583"></a>00583
426
<a name="l00584"></a>00584 painter->setPen(pen);
427
<a name="l00585"></a>00585
428
<a name="l00586"></a>00586 <span class="preprocessor">#if QT_VERSION >= 0x040000</span>
429
<a name="l00587"></a>00587 <span class="preprocessor"></span> <span class="keyword">const</span> QPolygonF &lines = contourLines[level];
430
<a name="l00588"></a>00588 <span class="preprocessor">#else</span>
431
<a name="l00589"></a>00589 <span class="preprocessor"></span> <span class="keyword">const</span> QwtArray<QwtDoublePoint> &lines = contourLines[level];
432
<a name="l00590"></a>00590 <span class="preprocessor">#endif</span>
433
<a name="l00591"></a>00591 <span class="preprocessor"></span> <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i = 0; i < (int)lines.size(); i += 2 )
434
<a name="l00592"></a>00592 {
435
<a name="l00593"></a>00593 <span class="keyword">const</span> QPoint p1( xMap.<a class="code" href="class_qwt_scale_map.html#f35bfdc44bad4b6932ab02e60e8e6e29">transform</a>(lines[i].x()),
436
<a name="l00594"></a>00594 yMap.<a class="code" href="class_qwt_scale_map.html#f35bfdc44bad4b6932ab02e60e8e6e29">transform</a>(lines[i].y()) );
437
<a name="l00595"></a>00595 <span class="keyword">const</span> QPoint p2( xMap.<a class="code" href="class_qwt_scale_map.html#f35bfdc44bad4b6932ab02e60e8e6e29">transform</a>(lines[i+1].x()),
438
<a name="l00596"></a>00596 yMap.<a class="code" href="class_qwt_scale_map.html#f35bfdc44bad4b6932ab02e60e8e6e29">transform</a>(lines[i+1].y()) );
439
<a name="l00597"></a>00597
440
<a name="l00598"></a>00598 <a class="code" href="class_qwt_painter.html#f809f23704df7e05f51222daa296ca80">QwtPainter::drawLine</a>(painter, p1, p2);
441
<a name="l00599"></a>00599 }
442
<a name="l00600"></a>00600 }
443
<a name="l00601"></a>00601 }
444
<a name="l00602"></a>00602
445
<a name="l00615"></a><a class="code" href="class_qwt_plot_spectrogram.html#e89cede1251d1405e1dd200b68dbc0aa">00615</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_plot_spectrogram.html#e89cede1251d1405e1dd200b68dbc0aa">QwtPlotSpectrogram::draw</a>(QPainter *painter,
446
<a name="l00616"></a>00616 <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,
447
<a name="l00617"></a>00617 <span class="keyword">const</span> QRect &canvasRect)<span class="keyword"> const</span>
448
<a name="l00618"></a>00618 <span class="keyword"></span>{
449
<a name="l00619"></a>00619 <span class="keywordflow">if</span> ( d_data->displayMode & ImageMode )
450
<a name="l00620"></a>00620 <a class="code" href="class_qwt_plot_raster_item.html#a8051353a68ab08b5962b0664e2c89d4">QwtPlotRasterItem::draw</a>(painter, xMap, yMap, canvasRect);
451
<a name="l00621"></a>00621
452
<a name="l00622"></a>00622 <span class="keywordflow">if</span> ( d_data->displayMode & ContourMode )
453
<a name="l00623"></a>00623 {
454
<a name="l00624"></a>00624 <span class="comment">// Add some pixels at the borders, so that </span>
455
<a name="l00625"></a>00625 <span class="keyword">const</span> <span class="keywordtype">int</span> margin = 2;
456
<a name="l00626"></a>00626 QRect rasterRect(canvasRect.x() - margin, canvasRect.y() - margin,
457
<a name="l00627"></a>00627 canvasRect.width() + 2 * margin, canvasRect.height() + 2 * margin);
458
<a name="l00628"></a>00628
459
<a name="l00629"></a>00629 <a class="code" href="qwt__double__rect_8h.html#0c0dc4d33592fac4ad94734d8e9c4152">QwtDoubleRect</a> area = <a class="code" href="class_qwt_plot_item.html#01bc8299a1e06eac29907d717dede51a">invTransform</a>(xMap, yMap, rasterRect);
460
<a name="l00630"></a>00630
461
<a name="l00631"></a>00631 <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_spectrogram.html#063f21a8f29e3064ea8af9815096645a">boundingRect</a>();
462
<a name="l00632"></a>00632 <span class="keywordflow">if</span> ( br.isValid() && br.contains(area) )
463
<a name="l00633"></a>00633 {
464
<a name="l00634"></a>00634 area &= br;
465
<a name="l00635"></a>00635 rasterRect = <a class="code" href="class_qwt_plot_item.html#9adba4c37682d216740c714d23e97b53">transform</a>(xMap, yMap, area);
466
<a name="l00636"></a>00636 }
467
<a name="l00637"></a>00637
468
<a name="l00638"></a>00638 QSize raster = <a class="code" href="class_qwt_plot_spectrogram.html#635d011aec42598cdfdf55df23078695">contourRasterSize</a>(area, rasterRect);
469
<a name="l00639"></a>00639 raster = raster.boundedTo(rasterRect.size());
470
<a name="l00640"></a>00640 <span class="keywordflow">if</span> ( raster.isValid() )
471
<a name="l00641"></a>00641 {
472
<a name="l00642"></a>00642 <span class="keyword">const</span> <a class="code" href="class_qwt_raster_data.html#dc6679160a229992f0870a2b784985f3">QwtRasterData::ContourLines</a> lines =
473
<a name="l00643"></a>00643 <a class="code" href="class_qwt_plot_spectrogram.html#07d413080f75a7d6206785fecca94a2b">renderContourLines</a>(area, raster);
474
<a name="l00644"></a>00644
475
<a name="l00645"></a>00645 <a class="code" href="class_qwt_plot_spectrogram.html#48f1b2133cb7ca8b443bb25a4c9501ff">drawContourLines</a>(painter, xMap, yMap, lines);
476
<a name="l00646"></a>00646 }
477
<a name="l00647"></a>00647 }
478
<a name="l00648"></a>00648 }
479
<a name="l00649"></a>00649
480
</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
481
<a href="http://www.doxygen.org/index.html">
482
<img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.5.0 </small></address>
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qwt-5.1.1/doc/html/qwt__plot__spectrogram_8cpp-source.html
