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<h1>qwt_color_map.h</h1> </div>
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<div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/* -*- mode: C++ ; c-file-style: "stroustrup" -*- *****************************</span>
<a name="l00002"></a>00002 <span class="comment"> * Qwt Widget Library</span>
<a name="l00003"></a>00003 <span class="comment"> * Copyright (C) 1997 Josef Wilgen</span>
<a name="l00004"></a>00004 <span class="comment"> * Copyright (C) 2002 Uwe Rathmann</span>
<a name="l00005"></a>00005 <span class="comment"> *</span>
<a name="l00006"></a>00006 <span class="comment"> * This library is free software; you can redistribute it and/or</span>
<a name="l00007"></a>00007 <span class="comment"> * modify it under the terms of the Qwt License, Version 1.0</span>
<a name="l00008"></a>00008 <span class="comment"> *****************************************************************************/</span>
<a name="l00009"></a>00009
<a name="l00010"></a>00010 <span class="preprocessor">#ifndef QWT_COLOR_MAP_H</span>
<a name="l00011"></a>00011 <span class="preprocessor"></span><span class="preprocessor">#define QWT_COLOR_MAP_H</span>
<a name="l00012"></a>00012 <span class="preprocessor"></span>
<a name="l00013"></a>00013 <span class="preprocessor">#include "qwt_global.h"</span>
<a name="l00014"></a>00014 <span class="preprocessor">#include "qwt_interval.h"</span>
<a name="l00015"></a>00015 <span class="preprocessor">#include <qcolor.h></span>
<a name="l00016"></a>00016 <span class="preprocessor">#include <qvector.h></span>
<a name="l00017"></a>00017
<a name="l00033"></a><a class="code" href="class_qwt_color_map.html">00033</a> <span class="keyword">class </span>QWT_EXPORT <a class="code" href="class_qwt_color_map.html" title="QwtColorMap is used to map values into colors.">QwtColorMap</a>
<a name="l00034"></a>00034 {
<a name="l00035"></a>00035 <span class="keyword">public</span>:
<a name="l00041"></a><a class="code" href="class_qwt_color_map.html#a9e5570790910fa3894887bca7dc5a670">00041</a> <span class="keyword">enum</span> <a class="code" href="class_qwt_color_map.html#a9e5570790910fa3894887bca7dc5a670">Format</a>
<a name="l00042"></a>00042 {
<a name="l00044"></a><a class="code" href="class_qwt_color_map.html#a9e5570790910fa3894887bca7dc5a670a663473fd836d9a84fe48ae1755de326a">00044</a> <a class="code" href="class_qwt_color_map.html#a9e5570790910fa3894887bca7dc5a670a663473fd836d9a84fe48ae1755de326a" title="The map is intended to map into QRgb values.">RGB</a>,
<a name="l00045"></a>00045
<a name="l00050"></a><a class="code" href="class_qwt_color_map.html#a9e5570790910fa3894887bca7dc5a670a304cb055c004223ca77f1a4cbbf27ea2">00050</a> Indexed
<a name="l00051"></a>00051 };
<a name="l00052"></a>00052
<a name="l00053"></a>00053 <a class="code" href="class_qwt_color_map.html" title="QwtColorMap is used to map values into colors.">QwtColorMap</a>( Format = <a class="code" href="class_qwt_color_map.html#a9e5570790910fa3894887bca7dc5a670a663473fd836d9a84fe48ae1755de326a" title="The map is intended to map into QRgb values.">QwtColorMap::RGB</a> );
<a name="l00054"></a>00054 <span class="keyword">virtual</span> ~<a class="code" href="class_qwt_color_map.html" title="QwtColorMap is used to map values into colors.">QwtColorMap</a>();
<a name="l00055"></a>00055
<a name="l00056"></a>00056 Format format() <span class="keyword">const</span>;
<a name="l00057"></a>00057
<a name="l00064"></a>00064 <span class="keyword">virtual</span> QRgb rgb( <span class="keyword">const</span> <a class="code" href="class_qwt_interval.html" title="A class representing an interval.">QwtInterval</a> &interval,
<a name="l00065"></a>00065 <span class="keywordtype">double</span> value ) <span class="keyword">const</span> = 0;
<a name="l00066"></a>00066
<a name="l00073"></a>00073 <span class="keyword">virtual</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> colorIndex(
<a name="l00074"></a>00074 <span class="keyword">const</span> <a class="code" href="class_qwt_interval.html" title="A class representing an interval.">QwtInterval</a> &interval, <span class="keywordtype">double</span> value ) <span class="keyword">const</span> = 0;
<a name="l00075"></a>00075
<a name="l00076"></a>00076 QColor color( <span class="keyword">const</span> <a class="code" href="class_qwt_interval.html" title="A class representing an interval.">QwtInterval</a> &, <span class="keywordtype">double</span> value ) <span class="keyword">const</span>;
<a name="l00077"></a>00077 <span class="keyword">virtual</span> QVector<QRgb> colorTable( <span class="keyword">const</span> <a class="code" href="class_qwt_interval.html" title="A class representing an interval.">QwtInterval</a> & ) <span class="keyword">const</span>;
<a name="l00078"></a>00078
<a name="l00079"></a>00079 <span class="keyword">private</span>:
<a name="l00080"></a>00080 Format d_format;
<a name="l00081"></a>00081 };
<a name="l00082"></a>00082
<a name="l00090"></a><a class="code" href="class_qwt_linear_color_map.html">00090</a> <span class="keyword">class </span>QWT_EXPORT <a class="code" href="class_qwt_linear_color_map.html" title="QwtLinearColorMap builds a color map from color stops.">QwtLinearColorMap</a>: <span class="keyword">public</span> <a class="code" href="class_qwt_color_map.html" title="QwtColorMap is used to map values into colors.">QwtColorMap</a>
<a name="l00091"></a>00091 {
<a name="l00092"></a>00092 <span class="keyword">public</span>:
<a name="l00097"></a><a class="code" href="class_qwt_linear_color_map.html#ac8c5f1991f533b1d25a9a0a0874b7d54">00097</a> <span class="keyword">enum</span> <a class="code" href="class_qwt_linear_color_map.html#ac8c5f1991f533b1d25a9a0a0874b7d54">Mode</a>
<a name="l00098"></a>00098 {
<a name="l00100"></a><a class="code" href="class_qwt_linear_color_map.html#ac8c5f1991f533b1d25a9a0a0874b7d54a564b5243ab2c5e4c972a6b645234c651">00100</a> <a class="code" href="class_qwt_linear_color_map.html#ac8c5f1991f533b1d25a9a0a0874b7d54a564b5243ab2c5e4c972a6b645234c651" title="Return the color from the next lower color stop.">FixedColors</a>,
<a name="l00101"></a>00101
<a name="l00103"></a><a class="code" href="class_qwt_linear_color_map.html#ac8c5f1991f533b1d25a9a0a0874b7d54a01770189cb40240f2fe7fe2e6c1523f1">00103</a> ScaledColors
<a name="l00104"></a>00104 };
<a name="l00105"></a>00105
<a name="l00106"></a>00106 <a class="code" href="class_qwt_linear_color_map.html" title="QwtLinearColorMap builds a color map from color stops.">QwtLinearColorMap</a>( <a class="code" href="class_qwt_color_map.html#a9e5570790910fa3894887bca7dc5a670">QwtColorMap::Format</a> = <a class="code" href="class_qwt_color_map.html#a9e5570790910fa3894887bca7dc5a670a663473fd836d9a84fe48ae1755de326a" title="The map is intended to map into QRgb values.">QwtColorMap::RGB</a> );
<a name="l00107"></a>00107 <a class="code" href="class_qwt_linear_color_map.html" title="QwtLinearColorMap builds a color map from color stops.">QwtLinearColorMap</a>( <span class="keyword">const</span> QColor &from, <span class="keyword">const</span> QColor &to,
<a name="l00108"></a>00108 <a class="code" href="class_qwt_color_map.html#a9e5570790910fa3894887bca7dc5a670">QwtColorMap::Format</a> = <a class="code" href="class_qwt_color_map.html#a9e5570790910fa3894887bca7dc5a670a663473fd836d9a84fe48ae1755de326a" title="The map is intended to map into QRgb values.">QwtColorMap::RGB</a> );
<a name="l00109"></a>00109
<a name="l00110"></a>00110 <span class="keyword">virtual</span> ~<a class="code" href="class_qwt_linear_color_map.html" title="QwtLinearColorMap builds a color map from color stops.">QwtLinearColorMap</a>();
<a name="l00111"></a>00111
<a name="l00112"></a>00112 <span class="keywordtype">void</span> setMode( Mode );
<a name="l00113"></a>00113 Mode mode() <span class="keyword">const</span>;
<a name="l00114"></a>00114
<a name="l00115"></a>00115 <span class="keywordtype">void</span> setColorInterval( <span class="keyword">const</span> QColor &color1, <span class="keyword">const</span> QColor &color2 );
<a name="l00116"></a>00116 <span class="keywordtype">void</span> addColorStop( <span class="keywordtype">double</span> value, <span class="keyword">const</span> QColor& );
<a name="l00117"></a>00117 QVector<double> colorStops() <span class="keyword">const</span>;
<a name="l00118"></a>00118
<a name="l00119"></a>00119 QColor color1() <span class="keyword">const</span>;
<a name="l00120"></a>00120 QColor color2() <span class="keyword">const</span>;
<a name="l00121"></a>00121
<a name="l00122"></a>00122 <span class="keyword">virtual</span> QRgb <a class="code" href="class_qwt_color_map.html#aaed0bb47b6379696c588732348438136">rgb</a>( <span class="keyword">const</span> <a class="code" href="class_qwt_interval.html" title="A class representing an interval.">QwtInterval</a> &, <span class="keywordtype">double</span> value ) <span class="keyword">const</span>;
<a name="l00123"></a>00123 <span class="keyword">virtual</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> <a class="code" href="class_qwt_color_map.html#a762baa2edca8773ec09e0c1c5df2cf04">colorIndex</a>(
<a name="l00124"></a>00124 <span class="keyword">const</span> <a class="code" href="class_qwt_interval.html" title="A class representing an interval.">QwtInterval</a> &, <span class="keywordtype">double</span> value ) <span class="keyword">const</span>;
<a name="l00125"></a>00125
<a name="l00126"></a>00126 <span class="keyword">class </span>ColorStops;
<a name="l00127"></a>00127
<a name="l00128"></a>00128 <span class="keyword">private</span>:
<a name="l00129"></a>00129 <span class="comment">// Disabled copy constructor and operator=</span>
<a name="l00130"></a>00130 <a class="code" href="class_qwt_linear_color_map.html" title="QwtLinearColorMap builds a color map from color stops.">QwtLinearColorMap</a>( <span class="keyword">const</span> <a class="code" href="class_qwt_linear_color_map.html" title="QwtLinearColorMap builds a color map from color stops.">QwtLinearColorMap</a> & );
<a name="l00131"></a>00131 <a class="code" href="class_qwt_linear_color_map.html" title="QwtLinearColorMap builds a color map from color stops.">QwtLinearColorMap</a> &operator=( <span class="keyword">const</span> <a class="code" href="class_qwt_linear_color_map.html" title="QwtLinearColorMap builds a color map from color stops.">QwtLinearColorMap</a> & );
<a name="l00132"></a>00132
<a name="l00133"></a>00133 <span class="keyword">class </span>PrivateData;
<a name="l00134"></a>00134 PrivateData *d_data;
<a name="l00135"></a>00135 };
<a name="l00136"></a>00136
<a name="l00140"></a><a class="code" href="class_qwt_alpha_color_map.html">00140</a> <span class="keyword">class </span>QWT_EXPORT <a class="code" href="class_qwt_alpha_color_map.html" title="QwtAlphaColorMap variies the alpha value of a color.">QwtAlphaColorMap</a>: <span class="keyword">public</span> <a class="code" href="class_qwt_color_map.html" title="QwtColorMap is used to map values into colors.">QwtColorMap</a>
<a name="l00141"></a>00141 {
<a name="l00142"></a>00142 <span class="keyword">public</span>:
<a name="l00143"></a>00143 <a class="code" href="class_qwt_alpha_color_map.html" title="QwtAlphaColorMap variies the alpha value of a color.">QwtAlphaColorMap</a>( <span class="keyword">const</span> QColor & = QColor( Qt::gray ) );
<a name="l00144"></a>00144 <span class="keyword">virtual</span> ~<a class="code" href="class_qwt_alpha_color_map.html" title="QwtAlphaColorMap variies the alpha value of a color.">QwtAlphaColorMap</a>();
<a name="l00145"></a>00145
<a name="l00146"></a>00146 <span class="keywordtype">void</span> setColor( <span class="keyword">const</span> QColor & );
<a name="l00147"></a>00147 QColor <a class="code" href="class_qwt_color_map.html#a35f74175e963d18e451a9fd4421ede1f">color</a>() <span class="keyword">const</span>;
<a name="l00148"></a>00148
<a name="l00149"></a>00149 <span class="keyword">virtual</span> QRgb <a class="code" href="class_qwt_color_map.html#aaed0bb47b6379696c588732348438136">rgb</a>( <span class="keyword">const</span> <a class="code" href="class_qwt_interval.html" title="A class representing an interval.">QwtInterval</a> &, <span class="keywordtype">double</span> value ) <span class="keyword">const</span>;
<a name="l00150"></a>00150
<a name="l00151"></a>00151 <span class="keyword">private</span>:
<a name="l00152"></a>00152 <a class="code" href="class_qwt_alpha_color_map.html" title="QwtAlphaColorMap variies the alpha value of a color.">QwtAlphaColorMap</a>( <span class="keyword">const</span> <a class="code" href="class_qwt_alpha_color_map.html" title="QwtAlphaColorMap variies the alpha value of a color.">QwtAlphaColorMap</a> & );
<a name="l00153"></a>00153 <a class="code" href="class_qwt_alpha_color_map.html" title="QwtAlphaColorMap variies the alpha value of a color.">QwtAlphaColorMap</a> &operator=( <span class="keyword">const</span> <a class="code" href="class_qwt_alpha_color_map.html" title="QwtAlphaColorMap variies the alpha value of a color.">QwtAlphaColorMap</a> & );
<a name="l00154"></a>00154
<a name="l00155"></a>00155 <span class="keyword">virtual</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> <a class="code" href="class_qwt_color_map.html#a762baa2edca8773ec09e0c1c5df2cf04">colorIndex</a>(
<a name="l00156"></a>00156 <span class="keyword">const</span> <a class="code" href="class_qwt_interval.html" title="A class representing an interval.">QwtInterval</a> &, <span class="keywordtype">double</span> value ) <span class="keyword">const</span>;
<a name="l00157"></a>00157
<a name="l00158"></a>00158 <span class="keyword">class </span>PrivateData;
<a name="l00159"></a>00159 PrivateData *d_data;
<a name="l00160"></a>00160 };
<a name="l00161"></a>00161
<a name="l00162"></a>00162
<a name="l00175"></a><a class="code" href="class_qwt_color_map.html#a35f74175e963d18e451a9fd4421ede1f">00175</a> <span class="keyword">inline</span> QColor <a class="code" href="class_qwt_color_map.html#a35f74175e963d18e451a9fd4421ede1f">QwtColorMap::color</a>(
<a name="l00176"></a>00176 <span class="keyword">const</span> <a class="code" href="class_qwt_interval.html" title="A class representing an interval.">QwtInterval</a> &interval, <span class="keywordtype">double</span> value )<span class="keyword"> const</span>
<a name="l00177"></a>00177 <span class="keyword"></span>{
<a name="l00178"></a>00178 <span class="keywordflow">if</span> ( d_format == <a class="code" href="class_qwt_color_map.html#a9e5570790910fa3894887bca7dc5a670a663473fd836d9a84fe48ae1755de326a" title="The map is intended to map into QRgb values.">RGB</a> )
<a name="l00179"></a>00179 {
<a name="l00180"></a>00180 <span class="keywordflow">return</span> QColor( <a class="code" href="class_qwt_color_map.html#aaed0bb47b6379696c588732348438136">rgb</a>( interval, value ) );
<a name="l00181"></a>00181 }
<a name="l00182"></a>00182 <span class="keywordflow">else</span>
<a name="l00183"></a>00183 {
<a name="l00184"></a>00184 <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> index = <a class="code" href="class_qwt_color_map.html#a762baa2edca8773ec09e0c1c5df2cf04">colorIndex</a>( interval, value );
<a name="l00185"></a>00185 <span class="keywordflow">return</span> <a class="code" href="class_qwt_color_map.html#a4ccc23356e058783071b06dee437b6d7">colorTable</a>( interval )[index]; <span class="comment">// slow</span>
<a name="l00186"></a>00186 }
<a name="l00187"></a>00187 }
<a name="l00188"></a>00188
<a name="l00193"></a><a class="code" href="class_qwt_color_map.html#a436802833ae1d4694f376655bc3d75be">00193</a> <span class="keyword">inline</span> <a class="code" href="class_qwt_color_map.html#a9e5570790910fa3894887bca7dc5a670">QwtColorMap::Format</a> <a class="code" href="class_qwt_color_map.html#a436802833ae1d4694f376655bc3d75be">QwtColorMap::format</a>()<span class="keyword"> const</span>
<a name="l00194"></a>00194 <span class="keyword"></span>{
<a name="l00195"></a>00195 <span class="keywordflow">return</span> d_format;
<a name="l00196"></a>00196 }
<a name="l00197"></a>00197
<a name="l00198"></a>00198 <span class="preprocessor">#endif</span>
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