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<div class="title">ico.cpp</div> </div>
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<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 {
<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" href="qdatastream.html">QDataStream</a>& operator >>( <a class="codeRef" 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 { RGB = 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" href="qdatastream.html">QDataStream</a>& operator >>( <a class="codeRef" 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" href="qdatastream.html">QDataStream</a> &operator<<( <a class="codeRef" 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" href="qdatastream.html">QDataStream</a>& operator >>( <a class="codeRef" 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" href="qdatastream.html">QDataStream</a>& stream, <span class="keyword">const</span> IconRec& rec, <a class="codeRef" 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" 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" 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" 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" href="qimage.html#setAlphaBuffer">setAlphaBuffer</a>( <span class="keyword">true</span> );
<a name="l00171"></a>00171
<a name="l00172"></a>00172 <a class="codeRef" 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" 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" 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" href="qdatastream.html#atEnd">atEnd</a>() && y--; )
<a name="l00188"></a>00188 {
<a name="l00189"></a>00189 stream.<a class="codeRef" 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 = <span class="keyword">reinterpret_cast<</span> QRgb* <span class="keyword">></span>( 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 <span class="keywordflow">for</span> ( <span class="keywordtype">unsigned</span> y = rec.height; y--; )
<a name="l00231"></a>00231 {
<a name="l00232"></a>00232 stream.<a class="codeRef" href="qdatastream.html#readRawBytes">readRawBytes</a>( reinterpret_cast< char* >( buf ), bpl );
<a name="l00233"></a>00233 QRgb* p = <span class="keyword">reinterpret_cast<</span> QRgb* <span class="keyword">></span>( 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" href="qimageio.html">QImageIO</a>* io )
<a name="l00245"></a>00245 {
<a name="l00246"></a>00246 <a class="codeRef" href="qiodevice.html#Offset">QIODevice::Offset</a> offset = io-><a class="codeRef" href="qimageio.html#ioDevice">ioDevice</a>()->at();
<a name="l00247"></a>00247
<a name="l00248"></a>00248 <a class="codeRef" href="qdatastream.html">QDataStream</a> stream( io-><a class="codeRef" href="qimageio.html#ioDevice">ioDevice</a>() );
<a name="l00249"></a>00249 stream.<a class="codeRef" 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" 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" href="qpaintdevicemetrics.html">QPaintDeviceMetrics</a> metrics( <a class="codeRef" 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" href="qimageio.html#parameters">parameters</a>() )
<a name="l00261"></a>00261 {
<a name="l00262"></a>00262 <a class="codeRef" href="qstringlist.html">QStringList</a> params = <a class="codeRef" href="qstringlist.html#split">QStringList::split</a>( <span class="charliteral">';'</span>, io-><a class="codeRef" href="qimageio.html#parameters">parameters</a>() );
<a name="l00263"></a>00263 <a class="codeRef" 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" href="qstringlist.html">QStringList</a> tmp = <a class="codeRef" 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" 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" href="qdatastream.html#atEnd">atEnd</a>() || selected == icons.end() ||
<a name="l00295"></a>00295 offset + selected->offset > io-><a class="codeRef" 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" href="qimageio.html#ioDevice">ioDevice</a>()->at( offset + selected->offset );
<a name="l00299"></a>00299 <a class="codeRef" 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" href="qimage.html#setText">setText</a>( <span class="stringliteral">"X-Index"</span>, 0, <a class="codeRef" 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" href="qimage.html#setText">setText</a>( <span class="stringliteral">"X-HotspotX"</span>, 0, <a class="codeRef" href="qstring.html#number">QString::number</a>( selected->hotspotX ) );
<a name="l00306"></a>00306 icon.<a class="codeRef" href="qimage.html#setText">setText</a>( <span class="stringliteral">"X-HotspotY"</span>, 0, <a class="codeRef" href="qstring.html#number">QString::number</a>( selected->hotspotY ) );
<a name="l00307"></a>00307 }
<a name="l00308"></a>00308 io-><a class="codeRef" href="qimageio.html#setImage">setImage</a>(icon);
<a name="l00309"></a>00309 io-><a class="codeRef" 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" 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" 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" href="qbytearray.html">QByteArray</a> dibData;
<a name="l00320"></a>00320 <a class="codeRef" 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" href="qimage.html">QImage</a> pixels = io-><a class="codeRef" href="qimageio.html#image">image</a>();
<a name="l00324"></a>00324 <a class="codeRef" href="qimage.html">QImage</a> mask;
<a name="l00325"></a>00325 <span class="keywordflow">if</span> (io-><a class="codeRef" href="qimageio.html#image">image</a>().hasAlphaBuffer())
<a name="l00326"></a>00326 mask = io-><a class="codeRef" 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" href="qimageio.html#image">image</a>().createHeuristicMask();
<a name="l00329"></a>00329 mask.<a class="codeRef" 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" 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" href="qimage.html#width">width</a>(); ++x )
<a name="l00332"></a>00332 <span class="keywordflow">if</span> ( mask.<a class="codeRef" href="qimage.html#pixel">pixel</a>( x, y ) == 0 ) pixels.<a class="codeRef" 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" href="qdatastream.html">QDataStream</a> ico(io-><a class="codeRef" href="qimageio.html#ioDevice">ioDevice</a>());
<a name="l00344"></a>00344 ico.<a class="codeRef" href="qdatastream.html#setByteOrder">setByteOrder</a>(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" href="qimageio.html#image">image</a>().width();
<a name="l00352"></a>00352 rec.height = io-><a class="codeRef" href="qimageio.html#image">image</a>().height();
<a name="l00353"></a>00353 <span class="keywordflow">if</span> (io-><a class="codeRef" 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" 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" 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" 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>
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