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<div class="title">kpixmapeffect.cpp</div> </div>
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<div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/* This file is part of the KDE libraries</span>
<a name="l00002"></a>00002 <span class="comment"> Copyright (C) 1998, 1999 Christian Tibirna <ctibirna@total.net></span>
<a name="l00003"></a>00003 <span class="comment"> (C) 1998, 1999 Daniel M. Duley <mosfet@kde.org></span>
<a name="l00004"></a>00004 <span class="comment"> (C) 1998, 1999 Dirk A. Mueller <mueller@kde.org></span>
<a name="l00005"></a>00005 <span class="comment"></span>
<a name="l00006"></a>00006 <span class="comment">*/</span>
<a name="l00007"></a>00007
<a name="l00008"></a>00008 <span class="comment">// $Id: kpixmapeffect.cpp 224328 2003-05-06 17:37:56Z fredrik $</span>
<a name="l00009"></a>00009
<a name="l00010"></a>00010 <span class="preprocessor">#include <qimage.h></span>
<a name="l00011"></a>00011 <span class="preprocessor">#include <qpainter.h></span>
<a name="l00012"></a>00012
<a name="l00013"></a>00013 <span class="preprocessor">#include "kpixmapeffect.h"</span>
<a name="l00014"></a>00014 <span class="preprocessor">#include "kpixmap.h"</span>
<a name="l00015"></a>00015 <span class="preprocessor">#include "kimageeffect.h"</span>
<a name="l00016"></a>00016
<a name="l00017"></a>00017 <span class="comment">//======================================================================</span>
<a name="l00018"></a>00018 <span class="comment">//</span>
<a name="l00019"></a>00019 <span class="comment">// Gradient effects</span>
<a name="l00020"></a>00020 <span class="comment">//</span>
<a name="l00021"></a>00021 <span class="comment">//======================================================================</span>
<a name="l00022"></a>00022
<a name="l00023"></a>00023
<a name="l00024"></a><a class="code" href="classKPixmapEffect.html#a9cded223b75513effc4b2760a3416e39">00024</a> <a class="code" href="classKPixmap.html" title="Off-screen paint device with extended features.">KPixmap</a>& <a class="code" href="classKPixmapEffect.html#a9cded223b75513effc4b2760a3416e39" title="Creates a gradient from color a to color b of the specified type.">KPixmapEffect::gradient</a>(<a class="code" href="classKPixmap.html" title="Off-screen paint device with extended features.">KPixmap</a> &pixmap, <span class="keyword">const</span> <a class="codeRef" href="qcolor.html">QColor</a> &ca,
<a name="l00025"></a>00025 <span class="keyword">const</span> <a class="codeRef" href="qcolor.html">QColor</a> &cb, GradientType eff, <span class="keywordtype">int</span> ncols)
<a name="l00026"></a>00026 {
<a name="l00027"></a>00027 <span class="keywordflow">if</span>(pixmap.<a class="codeRef" href="qpixmap.html#depth">depth</a>() > 8 &&
<a name="l00028"></a>00028 (eff == VerticalGradient || eff == HorizontalGradient)) {
<a name="l00029"></a>00029
<a name="l00030"></a>00030 <span class="keywordtype">int</span> rDiff, gDiff, bDiff;
<a name="l00031"></a>00031 <span class="keywordtype">int</span> rca, gca, bca <span class="comment">/*, rcb, gcb, bcb*/</span>;
<a name="l00032"></a>00032
<a name="l00033"></a>00033 <span class="keyword">register</span> <span class="keywordtype">int</span> x, y;
<a name="l00034"></a>00034
<a name="l00035"></a>00035 rDiff = (<span class="comment">/*rcb = */</span> cb.<a class="codeRef" href="qcolor.html#red">red</a>()) - (rca = ca.<a class="codeRef" href="qcolor.html#red">red</a>());
<a name="l00036"></a>00036 gDiff = (<span class="comment">/*gcb = */</span> cb.<a class="codeRef" href="qcolor.html#green">green</a>()) - (gca = ca.<a class="codeRef" href="qcolor.html#green">green</a>());
<a name="l00037"></a>00037 bDiff = (<span class="comment">/*bcb = */</span> cb.<a class="codeRef" href="qcolor.html#blue">blue</a>()) - (bca = ca.<a class="codeRef" href="qcolor.html#blue">blue</a>());
<a name="l00038"></a>00038
<a name="l00039"></a>00039 <span class="keyword">register</span> <span class="keywordtype">int</span> rl = rca << 16;
<a name="l00040"></a>00040 <span class="keyword">register</span> <span class="keywordtype">int</span> gl = gca << 16;
<a name="l00041"></a>00041 <span class="keyword">register</span> <span class="keywordtype">int</span> bl = bca << 16;
<a name="l00042"></a>00042
<a name="l00043"></a>00043 <span class="keywordtype">int</span> rcdelta = ((1<<16) / (eff == VerticalGradient ? pixmap.<a class="codeRef" href="qpixmap.html#height">height</a>() : pixmap.<a class="codeRef" href="qpixmap.html#width">width</a>())) * rDiff;
<a name="l00044"></a>00044 <span class="keywordtype">int</span> gcdelta = ((1<<16) / (eff == VerticalGradient ? pixmap.<a class="codeRef" href="qpixmap.html#height">height</a>() : pixmap.<a class="codeRef" href="qpixmap.html#width">width</a>())) * gDiff;
<a name="l00045"></a>00045 <span class="keywordtype">int</span> bcdelta = ((1<<16) / (eff == VerticalGradient ? pixmap.<a class="codeRef" href="qpixmap.html#height">height</a>() : pixmap.<a class="codeRef" href="qpixmap.html#width">width</a>())) * bDiff;
<a name="l00046"></a>00046
<a name="l00047"></a>00047 <a class="codeRef" href="qpainter.html">QPainter</a> p(&pixmap);
<a name="l00048"></a>00048
<a name="l00049"></a>00049 <span class="comment">// these for-loops could be merged, but the if's in the inner loop</span>
<a name="l00050"></a>00050 <span class="comment">// would make it slow</span>
<a name="l00051"></a>00051 <span class="keywordflow">switch</span>(eff) {
<a name="l00052"></a>00052 <span class="keywordflow">case</span> VerticalGradient:
<a name="l00053"></a>00053 <span class="keywordflow">for</span> ( y = 0; y < pixmap.<a class="codeRef" href="qpixmap.html#height">height</a>(); y++ ) {
<a name="l00054"></a>00054 rl += rcdelta;
<a name="l00055"></a>00055 gl += gcdelta;
<a name="l00056"></a>00056 bl += bcdelta;
<a name="l00057"></a>00057
<a name="l00058"></a>00058 p.<a class="codeRef" href="qpainter.html#setPen">setPen</a>(<a class="codeRef" href="qcolor.html">QColor</a>(rl>>16, gl>>16, bl>>16));
<a name="l00059"></a>00059 p.<a class="codeRef" href="qpainter.html#drawLine">drawLine</a>(0, y, pixmap.<a class="codeRef" href="qpixmap.html#width">width</a>()-1, y);
<a name="l00060"></a>00060 }
<a name="l00061"></a>00061 <span class="keywordflow">break</span>;
<a name="l00062"></a>00062 <span class="keywordflow">case</span> HorizontalGradient:
<a name="l00063"></a>00063 <span class="keywordflow">for</span>( x = 0; x < pixmap.<a class="codeRef" href="qpixmap.html#width">width</a>(); x++) {
<a name="l00064"></a>00064 rl += rcdelta;
<a name="l00065"></a>00065 gl += gcdelta;
<a name="l00066"></a>00066 bl += bcdelta;
<a name="l00067"></a>00067
<a name="l00068"></a>00068 p.<a class="codeRef" href="qpainter.html#setPen">setPen</a>(<a class="codeRef" href="qcolor.html">QColor</a>(rl>>16, gl>>16, bl>>16));
<a name="l00069"></a>00069 p.<a class="codeRef" href="qpainter.html#drawLine">drawLine</a>(x, 0, x, pixmap.<a class="codeRef" href="qpixmap.html#height">height</a>()-1);
<a name="l00070"></a>00070 }
<a name="l00071"></a>00071 <span class="keywordflow">break</span>;
<a name="l00072"></a>00072 <span class="keywordflow">default</span>:
<a name="l00073"></a>00073 ;
<a name="l00074"></a>00074 }
<a name="l00075"></a>00075 }
<a name="l00076"></a>00076 <span class="keywordflow">else</span> {
<a name="l00077"></a>00077 <a class="codeRef" href="qimage.html">QImage</a> image = <a class="code" href="classKPixmapEffect.html#a9cded223b75513effc4b2760a3416e39" title="Creates a gradient from color a to color b of the specified type.">KImageEffect::gradient</a>(pixmap.<a class="codeRef" href="qpixmap.html#size">size</a>(), ca, cb,
<a name="l00078"></a>00078 (<a class="code" href="classKImageEffect.html#a5dd7fcdf794dd35c23082a1f5327cb74" title="This enum provides a gradient type specification.">KImageEffect::GradientType</a>) eff, ncols);
<a name="l00079"></a>00079 pixmap.<a class="code" href="classKPixmap.html#a1dce0fd7cc88a58a6476b1c6b10b2517" title="Converts an image and sets this pixmap.">convertFromImage</a>(image);
<a name="l00080"></a>00080 }
<a name="l00081"></a>00081
<a name="l00082"></a>00082 <span class="keywordflow">return</span> pixmap;
<a name="l00083"></a>00083 }
<a name="l00084"></a>00084
<a name="l00085"></a>00085
<a name="l00086"></a>00086 <span class="comment">// -----------------------------------------------------------------------------</span>
<a name="l00087"></a>00087
<a name="l00088"></a><a class="code" href="classKPixmapEffect.html#a9547f7634a1fd8bc0c7e3bde97f353e4">00088</a> <a class="code" href="classKPixmap.html" title="Off-screen paint device with extended features.">KPixmap</a>& <a class="code" href="classKPixmapEffect.html#a9547f7634a1fd8bc0c7e3bde97f353e4" title="Creates an unbalanced gradient.">KPixmapEffect::unbalancedGradient</a>(<a class="code" href="classKPixmap.html" title="Off-screen paint device with extended features.">KPixmap</a> &pixmap, <span class="keyword">const</span> <a class="codeRef" href="qcolor.html">QColor</a> &ca,
<a name="l00089"></a>00089 <span class="keyword">const</span> <a class="codeRef" href="qcolor.html">QColor</a> &cb, GradientType eff, <span class="keywordtype">int</span> xfactor, <span class="keywordtype">int</span> yfactor,
<a name="l00090"></a>00090 <span class="keywordtype">int</span> ncols)
<a name="l00091"></a>00091 {
<a name="l00092"></a>00092 <a class="codeRef" href="qimage.html">QImage</a> image = <a class="code" href="classKPixmapEffect.html#a9547f7634a1fd8bc0c7e3bde97f353e4" title="Creates an unbalanced gradient.">KImageEffect::unbalancedGradient</a>(pixmap.<a class="codeRef" href="qpixmap.html#size">size</a>(), ca, cb,
<a name="l00093"></a>00093 (<a class="code" href="classKImageEffect.html#a5dd7fcdf794dd35c23082a1f5327cb74" title="This enum provides a gradient type specification.">KImageEffect::GradientType</a>) eff,
<a name="l00094"></a>00094 xfactor, yfactor, ncols);
<a name="l00095"></a>00095 pixmap.<a class="code" href="classKPixmap.html#a1dce0fd7cc88a58a6476b1c6b10b2517" title="Converts an image and sets this pixmap.">convertFromImage</a>(image);
<a name="l00096"></a>00096
<a name="l00097"></a>00097 <span class="keywordflow">return</span> pixmap;
<a name="l00098"></a>00098 }
<a name="l00099"></a>00099
<a name="l00100"></a>00100
<a name="l00101"></a>00101 <span class="comment">//======================================================================</span>
<a name="l00102"></a>00102 <span class="comment">//</span>
<a name="l00103"></a>00103 <span class="comment">// Intensity effects</span>
<a name="l00104"></a>00104 <span class="comment">//</span>
<a name="l00105"></a>00105 <span class="comment">//======================================================================</span>
<a name="l00106"></a>00106
<a name="l00107"></a>00107
<a name="l00108"></a>00108
<a name="l00109"></a><a class="code" href="classKPixmapEffect.html#a136bd9cdb4bed497adfa5ea35b55abfe">00109</a> <a class="code" href="classKPixmap.html" title="Off-screen paint device with extended features.">KPixmap</a>& <a class="code" href="classKPixmapEffect.html#a136bd9cdb4bed497adfa5ea35b55abfe" title="Either brightens or dims a pixmap by a specified ratio.">KPixmapEffect::intensity</a>(<a class="code" href="classKPixmap.html" title="Off-screen paint device with extended features.">KPixmap</a> &pixmap, <span class="keywordtype">float</span> percent)
<a name="l00110"></a>00110 {
<a name="l00111"></a>00111 <a class="codeRef" href="qimage.html">QImage</a> image = pixmap.<a class="codeRef" href="qpixmap.html#convertToImage">convertToImage</a>();
<a name="l00112"></a>00112 <a class="code" href="classKPixmapEffect.html#a136bd9cdb4bed497adfa5ea35b55abfe" title="Either brightens or dims a pixmap by a specified ratio.">KImageEffect::intensity</a>(image, percent);
<a name="l00113"></a>00113 pixmap.<a class="code" href="classKPixmap.html#a1dce0fd7cc88a58a6476b1c6b10b2517" title="Converts an image and sets this pixmap.">convertFromImage</a>(image);
<a name="l00114"></a>00114
<a name="l00115"></a>00115 <span class="keywordflow">return</span> pixmap;
<a name="l00116"></a>00116 }
<a name="l00117"></a>00117
<a name="l00118"></a>00118
<a name="l00119"></a>00119 <span class="comment">// -----------------------------------------------------------------------------</span>
<a name="l00120"></a>00120
<a name="l00121"></a><a class="code" href="classKPixmapEffect.html#af171a9c7e29faba0fc4676bbf4db0597">00121</a> <a class="code" href="classKPixmap.html" title="Off-screen paint device with extended features.">KPixmap</a>& <a class="code" href="classKPixmapEffect.html#af171a9c7e29faba0fc4676bbf4db0597" title="Modifies the intensity of a pixmap's RGB channel component.">KPixmapEffect::channelIntensity</a>(<a class="code" href="classKPixmap.html" title="Off-screen paint device with extended features.">KPixmap</a> &pixmap, <span class="keywordtype">float</span> percent,
<a name="l00122"></a>00122 RGBComponent channel)
<a name="l00123"></a>00123 {
<a name="l00124"></a>00124 <a class="codeRef" href="qimage.html">QImage</a> image = pixmap.<a class="codeRef" href="qpixmap.html#convertToImage">convertToImage</a>();
<a name="l00125"></a>00125 <a class="code" href="classKPixmapEffect.html#af171a9c7e29faba0fc4676bbf4db0597" title="Modifies the intensity of a pixmap's RGB channel component.">KImageEffect::channelIntensity</a>(image, percent,
<a name="l00126"></a>00126 (<a class="code" href="classKImageEffect.html#ade122b4821923df992d902d844ee8dea" title="This enum provides a RGB channel specification.">KImageEffect::RGBComponent</a>) channel);
<a name="l00127"></a>00127 pixmap.<a class="code" href="classKPixmap.html#a1dce0fd7cc88a58a6476b1c6b10b2517" title="Converts an image and sets this pixmap.">convertFromImage</a>(image);
<a name="l00128"></a>00128
<a name="l00129"></a>00129 <span class="keywordflow">return</span> pixmap;
<a name="l00130"></a>00130 }
<a name="l00131"></a>00131
<a name="l00132"></a>00132
<a name="l00133"></a>00133 <span class="comment">//======================================================================</span>
<a name="l00134"></a>00134 <span class="comment">//</span>
<a name="l00135"></a>00135 <span class="comment">// Blend effects</span>
<a name="l00136"></a>00136 <span class="comment">//</span>
<a name="l00137"></a>00137 <span class="comment">//======================================================================</span>
<a name="l00138"></a>00138
<a name="l00139"></a>00139
<a name="l00140"></a><a class="code" href="classKPixmapEffect.html#ac5b12e198818445da3b78731a573a422">00140</a> <a class="code" href="classKPixmap.html" title="Off-screen paint device with extended features.">KPixmap</a>& <a class="code" href="classKPixmapEffect.html#ac5b12e198818445da3b78731a573a422" title="Blends the provided pixmap into a background of the indicated color.">KPixmapEffect::blend</a>(<a class="code" href="classKPixmap.html" title="Off-screen paint device with extended features.">KPixmap</a> &pixmap, <span class="keywordtype">float</span> initial_intensity,
<a name="l00141"></a>00141 <span class="keyword">const</span> <a class="codeRef" href="qcolor.html">QColor</a> &bgnd, GradientType eff,
<a name="l00142"></a>00142 <span class="keywordtype">bool</span> anti_dir, <span class="keywordtype">int</span> ncols)
<a name="l00143"></a>00143 {
<a name="l00144"></a>00144
<a name="l00145"></a>00145 <a class="codeRef" href="qimage.html">QImage</a> image = pixmap.<a class="codeRef" href="qpixmap.html#convertToImage">convertToImage</a>();
<a name="l00146"></a>00146 <span class="keywordflow">if</span> (image.<a class="codeRef" href="qimage.html#depth">depth</a>() <=8)
<a name="l00147"></a>00147 image = image.<a class="codeRef" href="qimage.html#convertDepth">convertDepth</a>(32); <span class="comment">//Sloww..</span>
<a name="l00148"></a>00148
<a name="l00149"></a>00149 <a class="code" href="classKPixmapEffect.html#ac5b12e198818445da3b78731a573a422" title="Blends the provided pixmap into a background of the indicated color.">KImageEffect::blend</a>(image, initial_intensity, bgnd,
<a name="l00150"></a>00150 (<a class="code" href="classKImageEffect.html#a5dd7fcdf794dd35c23082a1f5327cb74" title="This enum provides a gradient type specification.">KImageEffect::GradientType</a>) eff, anti_dir);
<a name="l00151"></a>00151
<a name="l00152"></a>00152 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> tmp;
<a name="l00153"></a>00153
<a name="l00154"></a>00154 <span class="keywordflow">if</span>(pixmap.<a class="codeRef" href="qpixmap.html#depth">depth</a>() <= 8 ) {
<a name="l00155"></a>00155 <span class="keywordflow">if</span> ( ncols < 2 || ncols > 256 )
<a name="l00156"></a>00156 ncols = 3;
<a name="l00157"></a>00157 <a class="codeRef" href="qcolor.html">QColor</a> *dPal = <span class="keyword">new</span> <a class="codeRef" href="qcolor.html">QColor</a>[ncols];
<a name="l00158"></a>00158 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i=0; i<ncols; i++) {
<a name="l00159"></a>00159 tmp = 0 + 255 * i / ( ncols - 1 );
<a name="l00160"></a>00160 dPal[i].<a class="codeRef" href="qcolor.html#setRgb">setRgb</a> ( tmp, tmp, tmp );
<a name="l00161"></a>00161 }
<a name="l00162"></a>00162 <a class="code" href="classKPixmapEffect.html#a3677a4309e5dca887c97ea18ac80ee86" title="Dithers a pixmap using Floyd-Steinberg dithering for low-color situations.">KImageEffect::dither</a>(image, dPal, ncols);
<a name="l00163"></a>00163 pixmap.<a class="code" href="classKPixmap.html#a1dce0fd7cc88a58a6476b1c6b10b2517" title="Converts an image and sets this pixmap.">convertFromImage</a>(image);
<a name="l00164"></a>00164 <span class="keyword">delete</span> [] dPal;
<a name="l00165"></a>00165 }
<a name="l00166"></a>00166 <span class="keywordflow">else</span>
<a name="l00167"></a>00167 pixmap.<a class="code" href="classKPixmap.html#a1dce0fd7cc88a58a6476b1c6b10b2517" title="Converts an image and sets this pixmap.">convertFromImage</a>(image);
<a name="l00168"></a>00168
<a name="l00169"></a>00169 <span class="keywordflow">return</span> pixmap;
<a name="l00170"></a>00170 }
<a name="l00171"></a>00171
<a name="l00172"></a>00172
<a name="l00173"></a>00173 <span class="comment">//======================================================================</span>
<a name="l00174"></a>00174 <span class="comment">//</span>
<a name="l00175"></a>00175 <span class="comment">// Hash effects</span>
<a name="l00176"></a>00176 <span class="comment">//</span>
<a name="l00177"></a>00177 <span class="comment">//======================================================================</span>
<a name="l00178"></a>00178
<a name="l00179"></a><a class="code" href="classKPixmapEffect.html#a4a984cf3f0ecb92c1f1c213158ace87c">00179</a> <a class="code" href="classKPixmap.html" title="Off-screen paint device with extended features.">KPixmap</a>& <a class="code" href="classKPixmapEffect.html#a4a984cf3f0ecb92c1f1c213158ace87c" title="Builds a hash on any given pixmap.">KPixmapEffect::hash</a>(<a class="code" href="classKPixmap.html" title="Off-screen paint device with extended features.">KPixmap</a> &pixmap, Lighting lite,
<a name="l00180"></a>00180 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> spacing, <span class="keywordtype">int</span> ncols)
<a name="l00181"></a>00181 {
<a name="l00182"></a>00182 <a class="codeRef" href="qimage.html">QImage</a> image = pixmap.<a class="codeRef" href="qpixmap.html#convertToImage">convertToImage</a>();
<a name="l00183"></a>00183 <a class="code" href="classKPixmapEffect.html#a4a984cf3f0ecb92c1f1c213158ace87c" title="Builds a hash on any given pixmap.">KImageEffect::hash</a>(image, (<a class="code" href="classKImageEffect.html#a96a70f4bb4cbd2dcb602337f045006df" title="This enum provides a lighting direction specification.">KImageEffect::Lighting</a>) lite, spacing);
<a name="l00184"></a>00184
<a name="l00185"></a>00185 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> tmp;
<a name="l00186"></a>00186
<a name="l00187"></a>00187 <span class="keywordflow">if</span>(pixmap.<a class="codeRef" href="qpixmap.html#depth">depth</a>() <= 8 ) {
<a name="l00188"></a>00188 <span class="keywordflow">if</span> ( ncols < 2 || ncols > 256 )
<a name="l00189"></a>00189 ncols = 3;
<a name="l00190"></a>00190 <a class="codeRef" href="qcolor.html">QColor</a> *dPal = <span class="keyword">new</span> <a class="codeRef" href="qcolor.html">QColor</a>[ncols];
<a name="l00191"></a>00191 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i=0; i<ncols; i++) {
<a name="l00192"></a>00192 tmp = 0 + 255 * i / ( ncols - 1 );
<a name="l00193"></a>00193 dPal[i].<a class="codeRef" href="qcolor.html#setRgb">setRgb</a> ( tmp, tmp, tmp );
<a name="l00194"></a>00194 }
<a name="l00195"></a>00195 <a class="code" href="classKPixmapEffect.html#a3677a4309e5dca887c97ea18ac80ee86" title="Dithers a pixmap using Floyd-Steinberg dithering for low-color situations.">KImageEffect::dither</a>(image, dPal, ncols);
<a name="l00196"></a>00196 pixmap.<a class="code" href="classKPixmap.html#a1dce0fd7cc88a58a6476b1c6b10b2517" title="Converts an image and sets this pixmap.">convertFromImage</a>(image);
<a name="l00197"></a>00197 <span class="keyword">delete</span> [] dPal;
<a name="l00198"></a>00198 }
<a name="l00199"></a>00199 <span class="keywordflow">else</span>
<a name="l00200"></a>00200 pixmap.<a class="code" href="classKPixmap.html#a1dce0fd7cc88a58a6476b1c6b10b2517" title="Converts an image and sets this pixmap.">convertFromImage</a>(image);
<a name="l00201"></a>00201
<a name="l00202"></a>00202 <span class="keywordflow">return</span> pixmap;
<a name="l00203"></a>00203 }
<a name="l00204"></a>00204
<a name="l00205"></a>00205
<a name="l00206"></a>00206 <span class="comment">//======================================================================</span>
<a name="l00207"></a>00207 <span class="comment">//</span>
<a name="l00208"></a>00208 <span class="comment">// Pattern effects</span>
<a name="l00209"></a>00209 <span class="comment">//</span>
<a name="l00210"></a>00210 <span class="comment">//======================================================================</span>
<a name="l00211"></a>00211
<a name="l00212"></a>00212 <span class="preprocessor">#if 0</span>
<a name="l00213"></a>00213 <span class="preprocessor"></span><span class="keywordtype">void</span> <a class="code" href="classKPixmapEffect.html#ac6ae1bd71f6cf13b8148ca14d7020a16" title="Creates a pattern from a pixmap.">KPixmapEffect::pattern</a>(<a class="code" href="classKPixmap.html" title="Off-screen paint device with extended features.">KPixmap</a> &pixmap, <span class="keyword">const</span> <a class="codeRef" href="qcolor.html">QColor</a> &ca,
<a name="l00214"></a>00214 <span class="keyword">const</span> <a class="codeRef" href="qcolor.html">QColor</a> &cb, <span class="keywordtype">unsigned</span> pat[8])
<a name="l00215"></a>00215 {
<a name="l00216"></a>00216 <a class="codeRef" href="qimage.html">QImage</a> img = <a class="code" href="classKPixmapEffect.html#ac6ae1bd71f6cf13b8148ca14d7020a16" title="Creates a pattern from a pixmap.">pattern</a>(pixmap.<a class="codeRef" href="qpixmap.html#size">size</a>(), ca, cb, pat);
<a name="l00217"></a>00217 pixmap.<a class="code" href="classKPixmap.html#a1dce0fd7cc88a58a6476b1c6b10b2517" title="Converts an image and sets this pixmap.">convertFromImage</a>(img);
<a name="l00218"></a>00218 }
<a name="l00219"></a>00219 <span class="preprocessor">#endif</span>
<a name="l00220"></a>00220 <span class="preprocessor"></span>
<a name="l00221"></a>00221 <span class="comment">// -----------------------------------------------------------------------------</span>
<a name="l00222"></a>00222
<a name="l00223"></a><a class="code" href="classKPixmapEffect.html#ac6ae1bd71f6cf13b8148ca14d7020a16">00223</a> <a class="code" href="classKPixmap.html" title="Off-screen paint device with extended features.">KPixmap</a> <a class="code" href="classKPixmapEffect.html#ac6ae1bd71f6cf13b8148ca14d7020a16" title="Creates a pattern from a pixmap.">KPixmapEffect::pattern</a>(<span class="keyword">const</span> <a class="code" href="classKPixmap.html" title="Off-screen paint device with extended features.">KPixmap</a>& pmtile, <a class="codeRef" href="qsize.html">QSize</a> size,
<a name="l00224"></a>00224 <span class="keyword">const</span> <a class="codeRef" href="qcolor.html">QColor</a> &ca, <span class="keyword">const</span> <a class="codeRef" href="qcolor.html">QColor</a> &cb, <span class="keywordtype">int</span> ncols)
<a name="l00225"></a>00225 {
<a name="l00226"></a>00226 <span class="keywordflow">if</span> (pmtile.<a class="codeRef" href="qpixmap.html#depth">depth</a>() > 8)
<a name="l00227"></a>00227 ncols = 0;
<a name="l00228"></a>00228
<a name="l00229"></a>00229 <a class="codeRef" href="qimage.html">QImage</a> img = pmtile.<a class="codeRef" href="qpixmap.html#convertToImage">convertToImage</a>();
<a name="l00230"></a>00230 <a class="code" href="classKImageEffect.html#ac2bbfe57bc4ee28aec88ce75bb49327d" title="This recolors a pixmap.">KImageEffect::flatten</a>(img, ca, cb, ncols);
<a name="l00231"></a>00231 <a class="code" href="classKPixmap.html" title="Off-screen paint device with extended features.">KPixmap</a> pixmap;
<a name="l00232"></a>00232 pixmap.<a class="code" href="classKPixmap.html#a1dce0fd7cc88a58a6476b1c6b10b2517" title="Converts an image and sets this pixmap.">convertFromImage</a>(img);
<a name="l00233"></a>00233
<a name="l00234"></a>00234 <span class="keywordflow">return</span> <a class="code" href="classKPixmapEffect.html#ab865dc6e67906b6ee42464fd71cd1e10" title="Creates a pixmap of a given size with the given pixmap.">KPixmapEffect::createTiled</a>(pixmap, size);
<a name="l00235"></a>00235 }
<a name="l00236"></a>00236
<a name="l00237"></a>00237
<a name="l00238"></a>00238 <span class="comment">// -----------------------------------------------------------------------------</span>
<a name="l00239"></a>00239
<a name="l00240"></a><a class="code" href="classKPixmapEffect.html#ab865dc6e67906b6ee42464fd71cd1e10">00240</a> <a class="code" href="classKPixmap.html" title="Off-screen paint device with extended features.">KPixmap</a> <a class="code" href="classKPixmapEffect.html#ab865dc6e67906b6ee42464fd71cd1e10" title="Creates a pixmap of a given size with the given pixmap.">KPixmapEffect::createTiled</a>(<span class="keyword">const</span> <a class="code" href="classKPixmap.html" title="Off-screen paint device with extended features.">KPixmap</a>& pixmap, <a class="codeRef" href="qsize.html">QSize</a> size)
<a name="l00241"></a>00241 {
<a name="l00242"></a>00242 <a class="code" href="classKPixmap.html" title="Off-screen paint device with extended features.">KPixmap</a> pix(size);
<a name="l00243"></a>00243
<a name="l00244"></a>00244 <a class="codeRef" href="qpainter.html">QPainter</a> p(&pix);
<a name="l00245"></a>00245 p.<a class="codeRef" href="qpainter.html#drawTiledPixmap">drawTiledPixmap</a>(0, 0, size.<a class="codeRef" href="qsize.html#width">width</a>(), size.<a class="codeRef" href="qsize.html#height">height</a>(), pixmap);
<a name="l00246"></a>00246
<a name="l00247"></a>00247 <span class="keywordflow">return</span> pix;
<a name="l00248"></a>00248 }
<a name="l00249"></a>00249
<a name="l00250"></a>00250
<a name="l00251"></a>00251 <span class="comment">//======================================================================</span>
<a name="l00252"></a>00252 <span class="comment">//</span>
<a name="l00253"></a>00253 <span class="comment">// Fade effects</span>
<a name="l00254"></a>00254 <span class="comment">//</span>
<a name="l00255"></a>00255 <span class="comment">//======================================================================</span>
<a name="l00256"></a>00256
<a name="l00257"></a><a class="code" href="classKPixmapEffect.html#a3c77ccb57fe4464bac3a665c4e150b61">00257</a> <a class="code" href="classKPixmap.html" title="Off-screen paint device with extended features.">KPixmap</a>& <a class="code" href="classKPixmapEffect.html#a3c77ccb57fe4464bac3a665c4e150b61" title="Fades a pixmap to a certain color.">KPixmapEffect::fade</a>(<a class="code" href="classKPixmap.html" title="Off-screen paint device with extended features.">KPixmap</a> &pixmap, <span class="keywordtype">double</span> val, <span class="keyword">const</span> <a class="codeRef" href="qcolor.html">QColor</a> &color)
<a name="l00258"></a>00258 {
<a name="l00259"></a>00259 <a class="codeRef" href="qimage.html">QImage</a> img = pixmap.<a class="codeRef" href="qpixmap.html#convertToImage">convertToImage</a>();
<a name="l00260"></a>00260 <a class="code" href="classKPixmapEffect.html#a3c77ccb57fe4464bac3a665c4e150b61" title="Fades a pixmap to a certain color.">KImageEffect::fade</a>(img, val, color);
<a name="l00261"></a>00261 pixmap.<a class="code" href="classKPixmap.html#a1dce0fd7cc88a58a6476b1c6b10b2517" title="Converts an image and sets this pixmap.">convertFromImage</a>(img);
<a name="l00262"></a>00262
<a name="l00263"></a>00263 <span class="keywordflow">return</span> pixmap;
<a name="l00264"></a>00264 }
<a name="l00265"></a>00265
<a name="l00266"></a>00266
<a name="l00267"></a>00267 <span class="comment">// -----------------------------------------------------------------------------</span>
<a name="l00268"></a><a class="code" href="classKPixmapEffect.html#a9a49c0ae52f41b2d078a25305b2ae4c8">00268</a> <a class="code" href="classKPixmap.html" title="Off-screen paint device with extended features.">KPixmap</a>& <a class="code" href="classKPixmapEffect.html#a9a49c0ae52f41b2d078a25305b2ae4c8" title="Converts a pixmap to grayscale.">KPixmapEffect::toGray</a>(<a class="code" href="classKPixmap.html" title="Off-screen paint device with extended features.">KPixmap</a> &pixmap, <span class="keywordtype">bool</span> fast)
<a name="l00269"></a>00269 {
<a name="l00270"></a>00270 <a class="codeRef" href="qimage.html">QImage</a> img = pixmap.<a class="codeRef" href="qpixmap.html#convertToImage">convertToImage</a>();
<a name="l00271"></a>00271 <a class="code" href="classKPixmapEffect.html#a9a49c0ae52f41b2d078a25305b2ae4c8" title="Converts a pixmap to grayscale.">KImageEffect::toGray</a>(img, fast);
<a name="l00272"></a>00272 pixmap.<a class="code" href="classKPixmap.html#a1dce0fd7cc88a58a6476b1c6b10b2517" title="Converts an image and sets this pixmap.">convertFromImage</a>(img);
<a name="l00273"></a>00273
<a name="l00274"></a>00274 <span class="keywordflow">return</span> pixmap;
<a name="l00275"></a>00275 }
<a name="l00276"></a>00276
<a name="l00277"></a>00277 <span class="comment">// -----------------------------------------------------------------------------</span>
<a name="l00278"></a><a class="code" href="classKPixmapEffect.html#aa88ef2ef750bc7e0d535e3a965dd4604">00278</a> <a class="code" href="classKPixmap.html" title="Off-screen paint device with extended features.">KPixmap</a>& <a class="code" href="classKPixmapEffect.html#aa88ef2ef750bc7e0d535e3a965dd4604" title="Desaturates a pixmap.">KPixmapEffect::desaturate</a>(<a class="code" href="classKPixmap.html" title="Off-screen paint device with extended features.">KPixmap</a> &pixmap, <span class="keywordtype">float</span> desat)
<a name="l00279"></a>00279 {
<a name="l00280"></a>00280 <a class="codeRef" href="qimage.html">QImage</a> img = pixmap.<a class="codeRef" href="qpixmap.html#convertToImage">convertToImage</a>();
<a name="l00281"></a>00281 <a class="code" href="classKPixmapEffect.html#aa88ef2ef750bc7e0d535e3a965dd4604" title="Desaturates a pixmap.">KImageEffect::desaturate</a>(img, desat);
<a name="l00282"></a>00282 pixmap.<a class="code" href="classKPixmap.html#a1dce0fd7cc88a58a6476b1c6b10b2517" title="Converts an image and sets this pixmap.">convertFromImage</a>(img);
<a name="l00283"></a>00283
<a name="l00284"></a>00284 <span class="keywordflow">return</span> pixmap;
<a name="l00285"></a>00285 }
<a name="l00286"></a>00286 <span class="comment">// -----------------------------------------------------------------------------</span>
<a name="l00287"></a><a class="code" href="classKPixmapEffect.html#af543f25d940413e22b04f63965cf5e4e">00287</a> <a class="code" href="classKPixmap.html" title="Off-screen paint device with extended features.">KPixmap</a>& <a class="code" href="classKPixmapEffect.html#af543f25d940413e22b04f63965cf5e4e" title="Modifies the contrast of a pixmap.">KPixmapEffect::contrast</a>(<a class="code" href="classKPixmap.html" title="Off-screen paint device with extended features.">KPixmap</a> &pixmap, <span class="keywordtype">int</span> c)
<a name="l00288"></a>00288 {
<a name="l00289"></a>00289 <a class="codeRef" href="qimage.html">QImage</a> img = pixmap.<a class="codeRef" href="qpixmap.html#convertToImage">convertToImage</a>();
<a name="l00290"></a>00290 <a class="code" href="classKPixmapEffect.html#af543f25d940413e22b04f63965cf5e4e" title="Modifies the contrast of a pixmap.">KImageEffect::contrast</a>(img, c);
<a name="l00291"></a>00291 pixmap.<a class="code" href="classKPixmap.html#a1dce0fd7cc88a58a6476b1c6b10b2517" title="Converts an image and sets this pixmap.">convertFromImage</a>(img);
<a name="l00292"></a>00292
<a name="l00293"></a>00293 <span class="keywordflow">return</span> pixmap;
<a name="l00294"></a>00294 }
<a name="l00295"></a>00295
<a name="l00296"></a>00296 <span class="comment">//======================================================================</span>
<a name="l00297"></a>00297 <span class="comment">//</span>
<a name="l00298"></a>00298 <span class="comment">// Dither effects</span>
<a name="l00299"></a>00299 <span class="comment">//</span>
<a name="l00300"></a>00300 <span class="comment">//======================================================================</span>
<a name="l00301"></a>00301
<a name="l00302"></a>00302 <span class="comment">// -----------------------------------------------------------------------------</span>
<a name="l00303"></a><a class="code" href="classKPixmapEffect.html#a3677a4309e5dca887c97ea18ac80ee86">00303</a> <a class="code" href="classKPixmap.html" title="Off-screen paint device with extended features.">KPixmap</a>& <a class="code" href="classKPixmapEffect.html#a3677a4309e5dca887c97ea18ac80ee86" title="Dithers a pixmap using Floyd-Steinberg dithering for low-color situations.">KPixmapEffect::dither</a>(<a class="code" href="classKPixmap.html" title="Off-screen paint device with extended features.">KPixmap</a> &pixmap, <span class="keyword">const</span> <a class="codeRef" href="qcolor.html">QColor</a> *palette, <span class="keywordtype">int</span> size)
<a name="l00304"></a>00304 {
<a name="l00305"></a>00305 <a class="codeRef" href="qimage.html">QImage</a> img = pixmap.<a class="codeRef" href="qpixmap.html#convertToImage">convertToImage</a>();
<a name="l00306"></a>00306 <a class="code" href="classKPixmapEffect.html#a3677a4309e5dca887c97ea18ac80ee86" title="Dithers a pixmap using Floyd-Steinberg dithering for low-color situations.">KImageEffect::dither</a>(img, palette, size);
<a name="l00307"></a>00307 pixmap.<a class="code" href="classKPixmap.html#a1dce0fd7cc88a58a6476b1c6b10b2517" title="Converts an image and sets this pixmap.">convertFromImage</a>(img);
<a name="l00308"></a>00308
<a name="l00309"></a>00309 <span class="keywordflow">return</span> pixmap;
<a name="l00310"></a>00310 }
<a name="l00311"></a>00311
<a name="l00312"></a>00312 <span class="comment">//======================================================================</span>
<a name="l00313"></a>00313 <span class="comment">//</span>
<a name="l00314"></a>00314 <span class="comment">// Other effects</span>
<a name="l00315"></a>00315 <span class="comment">//</span>
<a name="l00316"></a>00316 <span class="comment">//======================================================================</span>
<a name="l00317"></a>00317
<a name="l00318"></a><a class="code" href="classKPixmapEffect.html#a7f0f8c22b92ecd7f2ec7f76eefccefcd">00318</a> <a class="code" href="classKPixmap.html" title="Off-screen paint device with extended features.">KPixmap</a> <a class="code" href="classKPixmapEffect.html#a7f0f8c22b92ecd7f2ec7f76eefccefcd" title="Calculate a 'selected' pixmap, for instance a selected icon on the desktop.">KPixmapEffect::selectedPixmap</a>( <span class="keyword">const</span> <a class="code" href="classKPixmap.html" title="Off-screen paint device with extended features.">KPixmap</a> &pix, <span class="keyword">const</span> <a class="codeRef" href="qcolor.html">QColor</a> &col )
<a name="l00319"></a>00319 {
<a name="l00320"></a>00320 <a class="codeRef" href="qimage.html">QImage</a> img = pix.<a class="codeRef" href="qpixmap.html#convertToImage">convertToImage</a>();
<a name="l00321"></a>00321 <a class="code" href="classKImageEffect.html#a6062fc85735a4cb0703d1d042c33aad2" title="Calculate the image for a selected image, for instance a selected icon on the desktop.">KImageEffect::selectedImage</a>(img, col);
<a name="l00322"></a>00322 <a class="code" href="classKPixmap.html" title="Off-screen paint device with extended features.">KPixmap</a> outPix;
<a name="l00323"></a>00323 outPix.<a class="code" href="classKPixmap.html#a1dce0fd7cc88a58a6476b1c6b10b2517" title="Converts an image and sets this pixmap.">convertFromImage</a>(img);
<a name="l00324"></a>00324 <span class="keywordflow">return</span> outPix;
<a name="l00325"></a>00325 }
</pre></div></div>
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