<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" lang="en_US" xml:lang="en_US"> <head> <title>kimgio: ico.cpp Source File (kimgio)</title> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <meta http-equiv="Content-Style-Type" content="text/css" /> <meta http-equiv="pics-label" content='(pics-1.1 "http://www.icra.org/ratingsv02.html" comment "ICRAonline DE v2.0" l gen true for "http://www.kde.org" r (nz 1 vz 1 lz 1 oz 1 cb 1) "http://www.rsac.org/ratingsv01.html" l gen true for "http://www.kde.org" r (n 0 s 0 v 0 l 0))' /> <meta name="trademark" content="KDE e.V." /> <meta name="description" content="K Desktop Environment Homepage, KDE.org" /> <meta name="MSSmartTagsPreventParsing" content="true" /> <meta name="robots" content="all" /> <link rel="shortcut icon" href="../../favicon.ico" /> <link rel="stylesheet" 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name="content"></a> <!-- Generated by Doxygen 1.4.7 --> <h1>ico.cpp</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <a name="l00002"></a>00002 <span class="comment">/*</span> <a name="l00003"></a>00003 <span class="comment"> * $Id: ico.cpp 392281 2005-02-22 16:29:46Z orlovich $</span> <a name="l00004"></a>00004 <span class="comment"> * kimgio import filter for MS Windows .ico files</span> <a name="l00005"></a>00005 <span class="comment"> *</span> <a name="l00006"></a>00006 <span class="comment"> * Distributed under the terms of the LGPL</span> <a name="l00007"></a>00007 <span class="comment"> * Copyright (c) 2000 Malte Starostik <malte@kde.org></span> <a name="l00008"></a>00008 <span class="comment"> *</span> <a name="l00009"></a>00009 <span class="comment"> */</span> <a name="l00010"></a>00010 <a name="l00011"></a>00011 <span class="preprocessor">#include <cstring></span> <a name="l00012"></a>00012 <span class="preprocessor">#include <cstdlib></span> <a name="l00013"></a>00013 <span class="preprocessor">#include <algorithm></span> <a name="l00014"></a>00014 <span class="preprocessor">#include <vector></span> <a name="l00015"></a>00015 <a name="l00016"></a>00016 <span class="preprocessor">#include <qimage.h></span> <a name="l00017"></a>00017 <span class="preprocessor">#include <qbitmap.h></span> <a name="l00018"></a>00018 <span class="preprocessor">#include <qapplication.h></span> <a name="l00019"></a>00019 <span class="preprocessor">#include <qmemarray.h></span> <a name="l00020"></a>00020 <span class="preprocessor">#include <qpaintdevicemetrics.h></span> <a name="l00021"></a>00021 <a name="l00022"></a>00022 <span class="preprocessor">#include <kdelibs_export.h></span> <a name="l00023"></a>00023 <a name="l00024"></a>00024 <span class="preprocessor">#include "ico.h"</span> <a name="l00025"></a>00025 <a name="l00026"></a>00026 <span class="keyword">namespace</span> <a name="l00027"></a>00027 <span class="keyword"></span>{ <a name="l00028"></a>00028 <span class="comment">// Global header</span> <a name="l00029"></a>00029 <span class="keyword">struct </span>IcoHeader <a name="l00030"></a>00030 { <a name="l00031"></a>00031 <span class="keyword">enum</span> Type { Icon = 1, Cursor }; <a name="l00032"></a>00032 Q_UINT16 reserved; <a name="l00033"></a>00033 Q_UINT16 type; <a name="l00034"></a>00034 Q_UINT16 count; <a name="l00035"></a>00035 }; <a name="l00036"></a>00036 <a name="l00037"></a>00037 <span class="keyword">inline</span> <a class="codeRef" doxygen="qt.tag:" href="qdatastream.html">QDataStream</a>& operator >>( <a class="codeRef" doxygen="qt.tag:" href="qdatastream.html">QDataStream</a>& s, IcoHeader& h ) <a name="l00038"></a>00038 { <a name="l00039"></a>00039 <span class="keywordflow">return</span> s >> h.reserved >> h.type >> h.count; <a name="l00040"></a>00040 } <a name="l00041"></a>00041 <a name="l00042"></a>00042 <span class="comment">// Based on qt_read_dib et al. from qimage.cpp</span> <a name="l00043"></a>00043 <span class="comment">// (c) 1992-2002 Trolltech AS.</span> <a name="l00044"></a>00044 <span class="keyword">struct </span>BMP_INFOHDR <a name="l00045"></a>00045 { <a name="l00046"></a>00046 <span class="keyword">static</span> <span class="keyword">const</span> Q_UINT32 Size = 40; <a name="l00047"></a>00047 Q_UINT32 biSize; <span class="comment">// size of this struct</span> <a name="l00048"></a>00048 Q_UINT32 biWidth; <span class="comment">// pixmap width</span> <a name="l00049"></a>00049 Q_UINT32 biHeight; <span class="comment">// pixmap height</span> <a name="l00050"></a>00050 Q_UINT16 biPlanes; <span class="comment">// should be 1</span> <a name="l00051"></a>00051 Q_UINT16 biBitCount; <span class="comment">// number of bits per pixel</span> <a name="l00052"></a>00052 <span class="keyword">enum</span> Compression { <a class="code" href="classRGB.html">RGB</a> = 0 }; <a name="l00053"></a>00053 Q_UINT32 biCompression; <span class="comment">// compression method</span> <a name="l00054"></a>00054 Q_UINT32 biSizeImage; <span class="comment">// size of image</span> <a name="l00055"></a>00055 Q_UINT32 biXPelsPerMeter; <span class="comment">// horizontal resolution</span> <a name="l00056"></a>00056 Q_UINT32 biYPelsPerMeter; <span class="comment">// vertical resolution</span> <a name="l00057"></a>00057 Q_UINT32 biClrUsed; <span class="comment">// number of colors used</span> <a name="l00058"></a>00058 Q_UINT32 biClrImportant; <span class="comment">// number of important colors</span> <a name="l00059"></a>00059 }; <a name="l00060"></a>00060 <span class="keyword">const</span> Q_UINT32 BMP_INFOHDR::Size; <a name="l00061"></a>00061 <a name="l00062"></a>00062 <a class="codeRef" doxygen="qt.tag:" href="qdatastream.html">QDataStream</a>& operator >>( <a class="codeRef" doxygen="qt.tag:" href="qdatastream.html">QDataStream</a> &s, BMP_INFOHDR &bi ) <a name="l00063"></a>00063 { <a name="l00064"></a>00064 s >> bi.biSize; <a name="l00065"></a>00065 <span class="keywordflow">if</span> ( bi.biSize == BMP_INFOHDR::Size ) <a name="l00066"></a>00066 { <a name="l00067"></a>00067 s >> bi.biWidth >> bi.biHeight >> bi.biPlanes >> bi.biBitCount; <a name="l00068"></a>00068 s >> bi.biCompression >> bi.biSizeImage; <a name="l00069"></a>00069 s >> bi.biXPelsPerMeter >> bi.biYPelsPerMeter; <a name="l00070"></a>00070 s >> bi.biClrUsed >> bi.biClrImportant; <a name="l00071"></a>00071 } <a name="l00072"></a>00072 <span class="keywordflow">return</span> s; <a name="l00073"></a>00073 } <a name="l00074"></a>00074 <a name="l00075"></a>00075 <span class="preprocessor">#if 0</span> <a name="l00076"></a>00076 <span class="preprocessor"></span> <a class="codeRef" doxygen="qt.tag:" href="qdatastream.html">QDataStream</a> &operator<<( <a class="codeRef" doxygen="qt.tag:" href="qdatastream.html">QDataStream</a> &s, <span class="keyword">const</span> BMP_INFOHDR &bi ) <a name="l00077"></a>00077 { <a name="l00078"></a>00078 s << bi.biSize; <a name="l00079"></a>00079 s << bi.biWidth << bi.biHeight; <a name="l00080"></a>00080 s << bi.biPlanes; <a name="l00081"></a>00081 s << bi.biBitCount; <a name="l00082"></a>00082 s << bi.biCompression; <a name="l00083"></a>00083 s << bi.biSizeImage; <a name="l00084"></a>00084 s << bi.biXPelsPerMeter << bi.biYPelsPerMeter; <a name="l00085"></a>00085 s << bi.biClrUsed << bi.biClrImportant; <a name="l00086"></a>00086 <span class="keywordflow">return</span> s; <a name="l00087"></a>00087 } <a name="l00088"></a>00088 <span class="preprocessor">#endif</span> <a name="l00089"></a>00089 <span class="preprocessor"></span> <a name="l00090"></a>00090 <span class="comment">// Header for every icon in the file</span> <a name="l00091"></a>00091 <span class="keyword">struct </span>IconRec <a name="l00092"></a>00092 { <a name="l00093"></a>00093 <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> width; <a name="l00094"></a>00094 <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> height; <a name="l00095"></a>00095 Q_UINT16 colors; <a name="l00096"></a>00096 Q_UINT16 hotspotX; <a name="l00097"></a>00097 Q_UINT16 hotspotY; <a name="l00098"></a>00098 Q_UINT32 size; <a name="l00099"></a>00099 Q_UINT32 offset; <a name="l00100"></a>00100 }; <a name="l00101"></a>00101 <a name="l00102"></a>00102 <span class="keyword">inline</span> <a class="codeRef" doxygen="qt.tag:" href="qdatastream.html">QDataStream</a>& operator >>( <a class="codeRef" doxygen="qt.tag:" href="qdatastream.html">QDataStream</a>& s, IconRec& r ) <a name="l00103"></a>00103 { <a name="l00104"></a>00104 <span class="keywordflow">return</span> s >> r.width >> r.height >> r.colors <a name="l00105"></a>00105 >> r.hotspotX >> r.hotspotY >> r.size >> r.offset; <a name="l00106"></a>00106 } <a name="l00107"></a>00107 <a name="l00108"></a>00108 <span class="keyword">struct </span>LessDifference <a name="l00109"></a>00109 { <a name="l00110"></a>00110 LessDifference( <span class="keywordtype">unsigned</span> s, <span class="keywordtype">unsigned</span> c ) <a name="l00111"></a>00111 : size( s ), colors( c ) {} <a name="l00112"></a>00112 <a name="l00113"></a>00113 <span class="keywordtype">bool</span> operator ()( <span class="keyword">const</span> IconRec& lhs, <span class="keyword">const</span> IconRec& rhs )<span class="keyword"> const</span> <a name="l00114"></a>00114 <span class="keyword"> </span>{ <a name="l00115"></a>00115 <span class="comment">// closest size match precedes everything else</span> <a name="l00116"></a>00116 <span class="keywordflow">if</span> ( std::abs( <span class="keywordtype">int</span>( lhs.width - size ) ) < <a name="l00117"></a>00117 std::abs( <span class="keywordtype">int</span>( rhs.width - size ) ) ) <span class="keywordflow">return</span> <span class="keyword">true</span>; <a name="l00118"></a>00118 <span class="keywordflow">else</span> <span class="keywordflow">if</span> ( std::abs( <span class="keywordtype">int</span>( lhs.width - size ) ) > <a name="l00119"></a>00119 std::abs( <span class="keywordtype">int</span>( rhs.width - size ) ) ) <span class="keywordflow">return</span> <span class="keyword">false</span>; <a name="l00120"></a>00120 <span class="keywordflow">else</span> <span class="keywordflow">if</span> ( colors == 0 ) <a name="l00121"></a>00121 { <a name="l00122"></a>00122 <span class="comment">// high/true color requested</span> <a name="l00123"></a>00123 <span class="keywordflow">if</span> ( lhs.colors == 0 ) <span class="keywordflow">return</span> <span class="keyword">true</span>; <a name="l00124"></a>00124 <span class="keywordflow">else</span> <span class="keywordflow">if</span> ( rhs.colors == 0 ) <span class="keywordflow">return</span> <span class="keyword">false</span>; <a name="l00125"></a>00125 <span class="keywordflow">else</span> <span class="keywordflow">return</span> lhs.colors > rhs.colors; <a name="l00126"></a>00126 } <a name="l00127"></a>00127 <span class="keywordflow">else</span> <a name="l00128"></a>00128 { <a name="l00129"></a>00129 <span class="comment">// indexed icon requested</span> <a name="l00130"></a>00130 <span class="keywordflow">if</span> ( lhs.colors == 0 && rhs.colors == 0 ) <span class="keywordflow">return</span> <span class="keyword">false</span>; <a name="l00131"></a>00131 <span class="keywordflow">else</span> <span class="keywordflow">if</span> ( lhs.colors == 0 ) <span class="keywordflow">return</span> <span class="keyword">false</span>; <a name="l00132"></a>00132 <span class="keywordflow">else</span> <span class="keywordflow">return</span> std::abs( <span class="keywordtype">int</span>( lhs.colors - colors ) ) < <a name="l00133"></a>00133 std::abs( <span class="keywordtype">int</span>( rhs.colors - colors ) ); <a name="l00134"></a>00134 } <a name="l00135"></a>00135 } <a name="l00136"></a>00136 <span class="keywordtype">unsigned</span> size; <a name="l00137"></a>00137 <span class="keywordtype">unsigned</span> colors; <a name="l00138"></a>00138 }; <a name="l00139"></a>00139 <a name="l00140"></a>00140 <span class="keywordtype">bool</span> loadFromDIB( <a class="codeRef" doxygen="qt.tag:" href="qdatastream.html">QDataStream</a>& stream, <span class="keyword">const</span> IconRec& rec, <a class="codeRef" doxygen="qt.tag:" href="qimage.html">QImage</a>& icon ) <a name="l00141"></a>00141 { <a name="l00142"></a>00142 BMP_INFOHDR header; <a name="l00143"></a>00143 stream >> header; <a name="l00144"></a>00144 <span class="keywordflow">if</span> ( stream.<a class="codeRef" doxygen="qt.tag:" href="qdatastream.html#atEnd">atEnd</a>() || header.biSize != BMP_INFOHDR::Size || <a name="l00145"></a>00145 header.biSize > rec.size || <a name="l00146"></a>00146 header.biCompression != BMP_INFOHDR::RGB || <a name="l00147"></a>00147 ( header.biBitCount != 1 && header.biBitCount != 4 && <a name="l00148"></a>00148 header.biBitCount != 8 && header.biBitCount != 24 && <a name="l00149"></a>00149 header.biBitCount != 32 ) ) <span class="keywordflow">return</span> <span class="keyword">false</span>; <a name="l00150"></a>00150 <a name="l00151"></a>00151 <span class="keywordtype">unsigned</span> paletteSize, paletteEntries; <a name="l00152"></a>00152 <a name="l00153"></a>00153 <span class="keywordflow">if</span> (header.biBitCount > 8) <a name="l00154"></a>00154 { <a name="l00155"></a>00155 paletteEntries = 0; <a name="l00156"></a>00156 paletteSize = 0; <a name="l00157"></a>00157 } <a name="l00158"></a>00158 <span class="keywordflow">else</span> <a name="l00159"></a>00159 { <a name="l00160"></a>00160 paletteSize = (1 << header.biBitCount); <a name="l00161"></a>00161 paletteEntries = paletteSize; <a name="l00162"></a>00162 <span class="keywordflow">if</span> (header.biClrUsed && header.biClrUsed < paletteSize) <a name="l00163"></a>00163 paletteEntries = header.biClrUsed; <a name="l00164"></a>00164 } <a name="l00165"></a>00165 <a name="l00166"></a>00166 <span class="comment">// Always create a 32-bit image to get the mask right</span> <a name="l00167"></a>00167 <span class="comment">// Note: this is safe as rec.width, rec.height are bytes</span> <a name="l00168"></a>00168 icon.<a class="codeRef" doxygen="qt.tag:" href="qimage.html#create">create</a>( rec.width, rec.height, 32 ); <a name="l00169"></a>00169 <span class="keywordflow">if</span> ( icon.<a class="codeRef" doxygen="qt.tag:" href="qimage.html#isNull">isNull</a>() ) <span class="keywordflow">return</span> <span class="keyword">false</span>; <a name="l00170"></a>00170 icon.<a class="codeRef" doxygen="qt.tag:" href="qimage.html#setAlphaBuffer">setAlphaBuffer</a>( <span class="keyword">true</span> ); <a name="l00171"></a>00171 <a name="l00172"></a>00172 <a class="codeRef" doxygen="qt.tag:" href="qmemarray.html">QMemArray< QRgb ></a> colorTable( paletteSize ); <a name="l00173"></a>00173 <a name="l00174"></a>00174 colorTable.fill( QRgb( 0 ) ); <a name="l00175"></a>00175 <span class="keywordflow">for</span> ( <span class="keywordtype">unsigned</span> i = 0; i < paletteEntries; ++i ) <a name="l00176"></a>00176 { <a name="l00177"></a>00177 <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> rgb[ 4 ]; <a name="l00178"></a>00178 stream.<a class="codeRef" doxygen="qt.tag:" href="qdatastream.html#readRawBytes">readRawBytes</a>( reinterpret_cast< char* >( &rgb ), <a name="l00179"></a>00179 <span class="keyword">sizeof</span>( rgb ) ); <a name="l00180"></a>00180 colorTable[ i ] = qRgb( rgb[ 2 ], rgb[ 1 ], rgb[ 0 ] ); <a name="l00181"></a>00181 } <a name="l00182"></a>00182 <a name="l00183"></a>00183 <span class="keywordtype">unsigned</span> bpl = ( rec.width * header.biBitCount + 31 ) / 32 * 4; <a name="l00184"></a>00184 <a name="l00185"></a>00185 <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>* buf = <span class="keyword">new</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>[ bpl ]; <a name="l00186"></a>00186 <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>** lines = icon.<a class="codeRef" doxygen="qt.tag:" href="qimage.html#jumpTable">jumpTable</a>(); <a name="l00187"></a>00187 <span class="keywordflow">for</span> ( <span class="keywordtype">unsigned</span> y = rec.height; !stream.<a class="codeRef" doxygen="qt.tag:" href="qdatastream.html#atEnd">atEnd</a>() && y--; ) <a name="l00188"></a>00188 { <a name="l00189"></a>00189 stream.<a class="codeRef" doxygen="qt.tag:" href="qdatastream.html#readRawBytes">readRawBytes</a>( reinterpret_cast< char* >( buf ), bpl ); <a name="l00190"></a>00190 <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>* pixel = buf; <a name="l00191"></a>00191 QRgb* p = reinterpret_cast< QRgb* >( lines[ y ] ); <a name="l00192"></a>00192 <span class="keywordflow">switch</span> ( header.biBitCount ) <a name="l00193"></a>00193 { <a name="l00194"></a>00194 <span class="keywordflow">case</span> 1: <a name="l00195"></a>00195 <span class="keywordflow">for</span> ( <span class="keywordtype">unsigned</span> x = 0; x < rec.width; ++x ) <a name="l00196"></a>00196 *p++ = colorTable[ <a name="l00197"></a>00197 ( pixel[ x / 8 ] >> ( 7 - ( x & 0x07 ) ) ) & 1 ]; <a name="l00198"></a>00198 <span class="keywordflow">break</span>; <a name="l00199"></a>00199 <span class="keywordflow">case</span> 4: <a name="l00200"></a>00200 <span class="keywordflow">for</span> ( <span class="keywordtype">unsigned</span> x = 0; x < rec.width; ++x ) <a name="l00201"></a>00201 <span class="keywordflow">if</span> ( x & 1 ) *p++ = colorTable[ pixel[ x / 2 ] & 0x0f ]; <a name="l00202"></a>00202 <span class="keywordflow">else</span> *p++ = colorTable[ pixel[ x / 2 ] >> 4 ]; <a name="l00203"></a>00203 <span class="keywordflow">break</span>; <a name="l00204"></a>00204 <span class="keywordflow">case</span> 8: <a name="l00205"></a>00205 <span class="keywordflow">for</span> ( <span class="keywordtype">unsigned</span> x = 0; x < rec.width; ++x ) <a name="l00206"></a>00206 *p++ = colorTable[ pixel[ x ] ]; <a name="l00207"></a>00207 <span class="keywordflow">break</span>; <a name="l00208"></a>00208 <span class="keywordflow">case</span> 24: <a name="l00209"></a>00209 <span class="keywordflow">for</span> ( <span class="keywordtype">unsigned</span> x = 0; x < rec.width; ++x ) <a name="l00210"></a>00210 *p++ = qRgb( pixel[ 3 * x + 2 ], <a name="l00211"></a>00211 pixel[ 3 * x + 1 ], <a name="l00212"></a>00212 pixel[ 3 * x ] ); <a name="l00213"></a>00213 <span class="keywordflow">break</span>; <a name="l00214"></a>00214 <span class="keywordflow">case</span> 32: <a name="l00215"></a>00215 <span class="keywordflow">for</span> ( <span class="keywordtype">unsigned</span> x = 0; x < rec.width; ++x ) <a name="l00216"></a>00216 *p++ = qRgba( pixel[ 4 * x + 2 ], <a name="l00217"></a>00217 pixel[ 4 * x + 1 ], <a name="l00218"></a>00218 pixel[ 4 * x ], <a name="l00219"></a>00219 pixel[ 4 * x + 3] ); <a name="l00220"></a>00220 <span class="keywordflow">break</span>; <a name="l00221"></a>00221 } <a name="l00222"></a>00222 } <a name="l00223"></a>00223 <span class="keyword">delete</span>[] buf; <a name="l00224"></a>00224 <a name="l00225"></a>00225 <span class="keywordflow">if</span> ( header.biBitCount < 32 ) <a name="l00226"></a>00226 { <a name="l00227"></a>00227 <span class="comment">// Traditional 1-bit mask</span> <a name="l00228"></a>00228 bpl = ( rec.width + 31 ) / 32 * 4; <a name="l00229"></a>00229 buf = <span class="keyword">new</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>[ bpl ]; <a name="l00230"></a>00230 for ( <span class="keywordtype">unsigned</span> y = rec.height; y--; ) <a name="l00231"></a>00231 { <a name="l00232"></a>00232 stream.<a class="codeRef" doxygen="qt.tag:" href="qdatastream.html#readRawBytes">readRawBytes</a>( reinterpret_cast< char* >( buf ), bpl ); <a name="l00233"></a>00233 QRgb* p = reinterpret_cast< QRgb* >( lines[ y ] ); <a name="l00234"></a>00234 <span class="keywordflow">for</span> ( <span class="keywordtype">unsigned</span> x = 0; x < rec.width; ++x, ++p ) <a name="l00235"></a>00235 <span class="keywordflow">if</span> ( ( ( buf[ x / 8 ] >> ( 7 - ( x & 0x07 ) ) ) & 1 ) ) <a name="l00236"></a>00236 *p &= RGB_MASK; <a name="l00237"></a>00237 } <a name="l00238"></a>00238 <span class="keyword">delete</span>[] buf; <a name="l00239"></a>00239 } <a name="l00240"></a>00240 <span class="keywordflow">return</span> <span class="keyword">true</span>; <a name="l00241"></a>00241 } <a name="l00242"></a>00242 } <a name="l00243"></a>00243 <a name="l00244"></a>00244 <span class="keyword">extern</span> <span class="stringliteral">"C"</span> KDE_EXPORT <span class="keywordtype">void</span> kimgio_ico_read( <a class="codeRef" doxygen="qt.tag:" href="qimageio.html">QImageIO</a>* io ) <a name="l00245"></a>00245 { <a name="l00246"></a>00246 <a class="codeRef" doxygen="qt.tag:" href="qiodevice.html#Offset">QIODevice::Offset</a> offset = io-><a class="codeRef" doxygen="qt.tag:" href="qimageio.html#ioDevice">ioDevice</a>()->at(); <a name="l00247"></a>00247 <a name="l00248"></a>00248 <a class="codeRef" doxygen="qt.tag:" href="qdatastream.html">QDataStream</a> stream( io-><a class="codeRef" doxygen="qt.tag:" href="qimageio.html#ioDevice">ioDevice</a>() ); <a name="l00249"></a>00249 stream.<a class="codeRef" doxygen="qt.tag:" href="qdatastream.html#setByteOrder">setByteOrder</a>( QDataStream::LittleEndian ); <a name="l00250"></a>00250 IcoHeader header; <a name="l00251"></a>00251 stream >> header; <a name="l00252"></a>00252 <span class="keywordflow">if</span> ( stream.<a class="codeRef" doxygen="qt.tag:" href="qdatastream.html#atEnd">atEnd</a>() || !header.count || <a name="l00253"></a>00253 ( header.type != IcoHeader::Icon && header.type != IcoHeader::Cursor) ) <a name="l00254"></a>00254 <span class="keywordflow">return</span>; <a name="l00255"></a>00255 <a name="l00256"></a>00256 <a class="codeRef" doxygen="qt.tag:" href="qpaintdevicemetrics.html">QPaintDeviceMetrics</a> metrics( <a class="codeRef" doxygen="qt.tag:" href="qapplication.html#desktop">QApplication::desktop</a>() ); <a name="l00257"></a>00257 <span class="keywordtype">unsigned</span> requestedSize = 32; <a name="l00258"></a>00258 <span class="keywordtype">unsigned</span> requestedColors = metrics.depth() > 8 ? 0 : metrics.depth(); <a name="l00259"></a>00259 <span class="keywordtype">int</span> requestedIndex = -1; <a name="l00260"></a>00260 <span class="keywordflow">if</span> ( io-><a class="codeRef" doxygen="qt.tag:" href="qimageio.html#parameters">parameters</a>() ) <a name="l00261"></a>00261 { <a name="l00262"></a>00262 <a class="codeRef" doxygen="qt.tag:" href="qstringlist.html">QStringList</a> params = <a class="codeRef" doxygen="qt.tag:" href="qstringlist.html#split">QStringList::split</a>( <span class="charliteral">';'</span>, io-><a class="codeRef" doxygen="qt.tag:" href="qimageio.html#parameters">parameters</a>() ); <a name="l00263"></a>00263 <a class="codeRef" doxygen="qt.tag:" href="qmap.html">QMap< QString, QString ></a> options; <a name="l00264"></a>00264 <span class="keywordflow">for</span> ( QStringList::ConstIterator it = params.begin(); <a name="l00265"></a>00265 it != params.end(); ++it ) <a name="l00266"></a>00266 { <a name="l00267"></a>00267 <a class="codeRef" doxygen="qt.tag:" href="qstringlist.html">QStringList</a> tmp = <a class="codeRef" doxygen="qt.tag:" href="qstringlist.html#split">QStringList::split</a>( <span class="charliteral">'='</span>, *it ); <a name="l00268"></a>00268 <span class="keywordflow">if</span> ( tmp.count() == 2 ) options[ tmp[ 0 ] ] = tmp[ 1 ]; <a name="l00269"></a>00269 } <a name="l00270"></a>00270 <span class="keywordflow">if</span> ( options[ <span class="stringliteral">"index"</span> ].toUInt() ) <a name="l00271"></a>00271 requestedIndex = options[ <span class="stringliteral">"index"</span> ].toUInt(); <a name="l00272"></a>00272 <span class="keywordflow">if</span> ( options[ <span class="stringliteral">"size"</span> ].toUInt() ) <a name="l00273"></a>00273 requestedSize = options[ <span class="stringliteral">"size"</span> ].toUInt(); <a name="l00274"></a>00274 <span class="keywordflow">if</span> ( options[ <span class="stringliteral">"colors"</span> ].toUInt() ) <a name="l00275"></a>00275 requestedColors = options[ <span class="stringliteral">"colors"</span> ].toUInt(); <a name="l00276"></a>00276 } <a name="l00277"></a>00277 <a name="l00278"></a>00278 <span class="keyword">typedef</span> std::vector< IconRec > IconList; <a name="l00279"></a>00279 IconList icons; <a name="l00280"></a>00280 <span class="keywordflow">for</span> ( <span class="keywordtype">unsigned</span> i = 0; i < header.count; ++i ) <a name="l00281"></a>00281 { <a name="l00282"></a>00282 <span class="keywordflow">if</span> ( stream.<a class="codeRef" doxygen="qt.tag:" href="qdatastream.html#atEnd">atEnd</a>() ) <span class="keywordflow">return</span>; <a name="l00283"></a>00283 IconRec rec; <a name="l00284"></a>00284 stream >> rec; <a name="l00285"></a>00285 icons.push_back( rec ); <a name="l00286"></a>00286 } <a name="l00287"></a>00287 IconList::const_iterator selected; <a name="l00288"></a>00288 <span class="keywordflow">if</span> (requestedIndex >= 0) { <a name="l00289"></a>00289 selected = std::min( icons.begin() + requestedIndex, icons.end() ); <a name="l00290"></a>00290 } <span class="keywordflow">else</span> { <a name="l00291"></a>00291 selected = std::min_element( icons.begin(), icons.end(), <a name="l00292"></a>00292 LessDifference( requestedSize, requestedColors ) ); <a name="l00293"></a>00293 } <a name="l00294"></a>00294 <span class="keywordflow">if</span> ( stream.<a class="codeRef" doxygen="qt.tag:" href="qdatastream.html#atEnd">atEnd</a>() || selected == icons.end() || <a name="l00295"></a>00295 offset + selected->offset > io-><a class="codeRef" doxygen="qt.tag:" href="qimageio.html#ioDevice">ioDevice</a>()->size() ) <a name="l00296"></a>00296 <span class="keywordflow">return</span>; <a name="l00297"></a>00297 <a name="l00298"></a>00298 io-><a class="codeRef" doxygen="qt.tag:" href="qimageio.html#ioDevice">ioDevice</a>()->at( offset + selected->offset ); <a name="l00299"></a>00299 <a class="codeRef" doxygen="qt.tag:" href="qimage.html">QImage</a> icon; <a name="l00300"></a>00300 <span class="keywordflow">if</span> ( loadFromDIB( stream, *selected, icon ) ) <a name="l00301"></a>00301 { <a name="l00302"></a>00302 icon.<a class="codeRef" doxygen="qt.tag:" href="qimage.html#setText">setText</a>( <span class="stringliteral">"X-Index"</span>, 0, <a class="codeRef" doxygen="qt.tag:" href="qstring.html#number">QString::number</a>( selected - icons.begin() ) ); <a name="l00303"></a>00303 <span class="keywordflow">if</span> ( header.type == IcoHeader::Cursor ) <a name="l00304"></a>00304 { <a name="l00305"></a>00305 icon.<a class="codeRef" doxygen="qt.tag:" href="qimage.html#setText">setText</a>( <span class="stringliteral">"X-HotspotX"</span>, 0, <a class="codeRef" doxygen="qt.tag:" href="qstring.html#number">QString::number</a>( selected->hotspotX ) ); <a name="l00306"></a>00306 icon.<a class="codeRef" doxygen="qt.tag:" href="qimage.html#setText">setText</a>( <span class="stringliteral">"X-HotspotY"</span>, 0, <a class="codeRef" doxygen="qt.tag:" href="qstring.html#number">QString::number</a>( selected->hotspotY ) ); <a name="l00307"></a>00307 } <a name="l00308"></a>00308 io-><a class="codeRef" doxygen="qt.tag:" href="qimageio.html#setImage">setImage</a>(icon); <a name="l00309"></a>00309 io-><a class="codeRef" doxygen="qt.tag:" href="qimageio.html#setStatus">setStatus</a>(0); <a name="l00310"></a>00310 } <a name="l00311"></a>00311 } <a name="l00312"></a>00312 <a name="l00313"></a>00313 <span class="preprocessor">#if 0</span> <a name="l00314"></a>00314 <span class="preprocessor"></span><span class="keywordtype">void</span> kimgio_ico_write(<a class="codeRef" doxygen="qt.tag:" href="qimageio.html">QImageIO</a> *io) <a name="l00315"></a>00315 { <a name="l00316"></a>00316 <span class="keywordflow">if</span> (io-><a class="codeRef" doxygen="qt.tag:" href="qimageio.html#image">image</a>().isNull()) <a name="l00317"></a>00317 <span class="keywordflow">return</span>; <a name="l00318"></a>00318 <a name="l00319"></a>00319 <a class="codeRef" doxygen="qt.tag:" href="qbytearray.html">QByteArray</a> dibData; <a name="l00320"></a>00320 <a class="codeRef" doxygen="qt.tag:" href="qdatastream.html">QDataStream</a> dib(dibData, IO_ReadWrite); <a name="l00321"></a>00321 dib.setByteOrder(QDataStream::LittleEndian); <a name="l00322"></a>00322 <a name="l00323"></a>00323 <a class="codeRef" doxygen="qt.tag:" href="qimage.html">QImage</a> pixels = io-><a class="codeRef" doxygen="qt.tag:" href="qimageio.html#image">image</a>(); <a name="l00324"></a>00324 <a class="codeRef" doxygen="qt.tag:" href="qimage.html">QImage</a> mask; <a name="l00325"></a>00325 <span class="keywordflow">if</span> (io-><a class="codeRef" doxygen="qt.tag:" href="qimageio.html#image">image</a>().hasAlphaBuffer()) <a name="l00326"></a>00326 mask = io-><a class="codeRef" doxygen="qt.tag:" href="qimageio.html#image">image</a>().createAlphaMask(); <a name="l00327"></a>00327 <span class="keywordflow">else</span> <a name="l00328"></a>00328 mask = io-><a class="codeRef" doxygen="qt.tag:" href="qimageio.html#image">image</a>().createHeuristicMask(); <a name="l00329"></a>00329 mask.<a class="codeRef" doxygen="qt.tag:" href="qimage.html#invertPixels">invertPixels</a>(); <a name="l00330"></a>00330 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> y = 0; y < pixels.<a class="codeRef" doxygen="qt.tag:" href="qimage.html#height">height</a>(); ++y ) <a name="l00331"></a>00331 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> x = 0; x < pixels.<a class="codeRef" doxygen="qt.tag:" href="qimage.html#width">width</a>(); ++x ) <a name="l00332"></a>00332 <span class="keywordflow">if</span> ( mask.<a class="codeRef" doxygen="qt.tag:" href="qimage.html#pixel">pixel</a>( x, y ) == 0 ) pixels.<a class="codeRef" doxygen="qt.tag:" href="qimage.html#setPixel">setPixel</a>( x, y, 0 ); <a name="l00333"></a>00333 <a name="l00334"></a>00334 <span class="keywordflow">if</span> (!qt_write_dib(dib, pixels)) <a name="l00335"></a>00335 <span class="keywordflow">return</span>; <a name="l00336"></a>00336 <a name="l00337"></a>00337 uint hdrPos = dib.device()->at(); <a name="l00338"></a>00338 <span class="keywordflow">if</span> (!qt_write_dib(dib, mask)) <a name="l00339"></a>00339 <span class="keywordflow">return</span>; <a name="l00340"></a>00340 memmove(dibData.data() + hdrPos, dibData.data() + hdrPos + BMP_WIN + 8, dibData.size() - hdrPos - BMP_WIN - 8); <a name="l00341"></a>00341 dibData.resize(dibData.size() - BMP_WIN - 8); <a name="l00342"></a>00342 <a name="l00343"></a>00343 <a class="codeRef" doxygen="qt.tag:" href="qdatastream.html">QDataStream</a> ico(io-><a class="codeRef" doxygen="qt.tag:" href="qimageio.html#ioDevice">ioDevice</a>()); <a name="l00344"></a>00344 ico.setByteOrder(QDataStream::LittleEndian); <a name="l00345"></a>00345 IcoHeader hdr; <a name="l00346"></a>00346 hdr.reserved = 0; <a name="l00347"></a>00347 hdr.type = Icon; <a name="l00348"></a>00348 hdr.count = 1; <a name="l00349"></a>00349 ico << hdr.reserved << hdr.type << hdr.count; <a name="l00350"></a>00350 IconRec rec; <a name="l00351"></a>00351 rec.width = io-><a class="codeRef" doxygen="qt.tag:" href="qimageio.html#image">image</a>().width(); <a name="l00352"></a>00352 rec.height = io-><a class="codeRef" doxygen="qt.tag:" href="qimageio.html#image">image</a>().height(); <a name="l00353"></a>00353 <span class="keywordflow">if</span> (io-><a class="codeRef" doxygen="qt.tag:" href="qimageio.html#image">image</a>().numColors() <= 16) <a name="l00354"></a>00354 rec.colors = 16; <a name="l00355"></a>00355 <span class="keywordflow">else</span> if (io-><a class="codeRef" doxygen="qt.tag:" href="qimageio.html#image">image</a>().depth() <= 8) <a name="l00356"></a>00356 rec.colors = 256; <a name="l00357"></a>00357 <span class="keywordflow">else</span> <a name="l00358"></a>00358 rec.colors = 0; <a name="l00359"></a>00359 rec.hotspotX = 0; <a name="l00360"></a>00360 rec.hotspotY = 0; <a name="l00361"></a>00361 rec.dibSize = dibData.size(); <a name="l00362"></a>00362 ico << rec.width << rec.height << rec.colors <a name="l00363"></a>00363 << rec.hotspotX << rec.hotspotY << rec.dibSize; <a name="l00364"></a>00364 rec.dibOffset = ico.device()->at() + <span class="keyword">sizeof</span>(rec.dibOffset); <a name="l00365"></a>00365 ico << rec.dibOffset; <a name="l00366"></a>00366 <a name="l00367"></a>00367 BMP_INFOHDR dibHeader; <a name="l00368"></a>00368 dib.device()->at(0); <a name="l00369"></a>00369 dib >> dibHeader; <a name="l00370"></a>00370 dibHeader.biHeight = io-><a class="codeRef" doxygen="qt.tag:" href="qimageio.html#image">image</a>().height() << 1; <a name="l00371"></a>00371 dib.device()->at(0); <a name="l00372"></a>00372 dib << dibHeader; <a name="l00373"></a>00373 <a name="l00374"></a>00374 ico.writeRawBytes(dibData.data(), dibData.size()); <a name="l00375"></a>00375 io-><a class="codeRef" doxygen="qt.tag:" href="qimageio.html#setStatus">setStatus</a>(0); <a name="l00376"></a>00376 } <a name="l00377"></a>00377 <span class="preprocessor">#endif</span> </pre></div> </div></div> </td> </tr> <tr> <td valign="top" id="leftmenu" width="25%"> <a name="navigation"></a> <div class="menu_box"><h2>kimgio</h2> <div class="nav_list"> <ul><li><a href="index.html">Main Page</a></li><li><a href="hierarchy.html">Class Hierarchy</a></li><li><a href="classes.html">Alphabetical List</a></li><li><a href="annotated.html">Class List</a></li><li><a href="files.html">File List</a></li><li><a href="functions.html">Class 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