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<div class="title">kimageio.cpp</div> </div>
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<div class="fragment"><pre class="fragment"><a name="l00001"></a>00001
<a name="l00011"></a>00011 <span class="preprocessor">#include"config.h"</span>
<a name="l00012"></a>00012
<a name="l00013"></a>00013 <span class="preprocessor">#include <qdir.h></span>
<a name="l00014"></a>00014 <span class="preprocessor">#include <kapplication.h></span>
<a name="l00015"></a>00015 <span class="preprocessor">#include <kstandarddirs.h></span>
<a name="l00016"></a>00016 <span class="preprocessor">#include <qstring.h></span>
<a name="l00017"></a>00017 <span class="preprocessor">#include <qregexp.h></span>
<a name="l00018"></a>00018 <span class="preprocessor">#include <qvaluelist.h></span>
<a name="l00019"></a>00019
<a name="l00020"></a>00020 <span class="preprocessor">#include <ltdl.h></span>
<a name="l00021"></a>00021 <span class="preprocessor">#include "kimageio.h"</span>
<a name="l00022"></a>00022 <span class="preprocessor">#include "kimageiofactory.h"</span>
<a name="l00023"></a>00023 <span class="preprocessor">#include <klocale.h></span>
<a name="l00024"></a>00024 <span class="preprocessor">#include <klibloader.h></span>
<a name="l00025"></a>00025 <span class="preprocessor">#include <kglobal.h></span>
<a name="l00026"></a>00026 <span class="preprocessor">#include <kmimetype.h></span>
<a name="l00027"></a>00027 <span class="preprocessor">#include <ksycocaentry.h></span>
<a name="l00028"></a>00028 <span class="preprocessor">#include <ksycoca.h></span>
<a name="l00029"></a>00029 <span class="preprocessor">#include <kdebug.h></span>
<a name="l00030"></a>00030 <span class="preprocessor">#include <kstaticdeleter.h></span>
<a name="l00031"></a>00031
<a name="l00032"></a>00032 <span class="preprocessor">#include <qimage.h></span>
<a name="l00033"></a>00033
<a name="l00034"></a>00034 KImageIOFormat::KImageIOFormat( <span class="keyword">const</span> <a class="codeRef" href="qstring.html">QString</a> &path)
<a name="l00035"></a>00035 : KSycocaEntry(path)
<a name="l00036"></a>00036 {
<a name="l00037"></a>00037 bLibLoaded = <span class="keyword">false</span>;
<a name="l00038"></a>00038 mReadFunc = 0;
<a name="l00039"></a>00039 mWriteFunc = 0;
<a name="l00040"></a>00040 KConfig config(path, <span class="keyword">true</span>, <span class="keyword">false</span>);
<a name="l00041"></a>00041
<a name="l00042"></a>00042 config.setGroup(<span class="stringliteral">"Image Format"</span>);
<a name="l00043"></a>00043 mType = config.readEntry(<span class="stringliteral">"Type"</span>);
<a name="l00044"></a>00044 mHeader = KURL::decode_string(config.readEntry(<span class="stringliteral">"Header"</span>), 4); <span class="comment">// Latin1</span>
<a name="l00045"></a>00045 mFlags = config.readEntry(<span class="stringliteral">"Flags"</span>);
<a name="l00046"></a>00046 bRead = config.readBoolEntry(<span class="stringliteral">"Read"</span>);
<a name="l00047"></a>00047 bWrite = config.readBoolEntry(<span class="stringliteral">"Write"</span>);
<a name="l00048"></a>00048 mSuffices = config.readListEntry(<span class="stringliteral">"Suffices"</span>);
<a name="l00049"></a>00049 mPattern = config.readEntry(<span class="stringliteral">"Name"</span>);
<a name="l00050"></a>00050 mMimetype = config.readEntry(<span class="stringliteral">"Mimetype"</span>);
<a name="l00051"></a>00051 mLib = config.readPathEntry(<span class="stringliteral">"Library"</span>);
<a name="l00052"></a>00052 rPaths = config.readPathListEntry(<span class="stringliteral">"rPaths"</span>);
<a name="l00053"></a>00053 }
<a name="l00054"></a>00054
<a name="l00055"></a>00055 KImageIOFormat::KImageIOFormat( <a class="codeRef" href="qdatastream.html">QDataStream</a>& _str, <span class="keywordtype">int</span> offset) :
<a name="l00056"></a>00056 KSycocaEntry( _str, offset)
<a name="l00057"></a>00057 {
<a name="l00058"></a>00058 bLibLoaded = <span class="keyword">false</span>;
<a name="l00059"></a>00059 mReadFunc = 0;
<a name="l00060"></a>00060 mWriteFunc = 0;
<a name="l00061"></a>00061 load( _str );
<a name="l00062"></a>00062 }
<a name="l00063"></a>00063
<a name="l00064"></a>00064 KImageIOFormat::~KImageIOFormat()
<a name="l00065"></a>00065 {
<a name="l00066"></a>00066 }
<a name="l00067"></a>00067
<a name="l00068"></a>00068 <span class="keywordtype">void</span>
<a name="l00069"></a>00069 KImageIOFormat::load( <a class="codeRef" href="qdatastream.html">QDataStream</a>& _str)
<a name="l00070"></a>00070 {
<a name="l00071"></a>00071 Q_INT8 iRead, iWrite;
<a name="l00072"></a>00072 KSycocaEntry::read(_str, mType);
<a name="l00073"></a>00073 KSycocaEntry::read(_str, mHeader);
<a name="l00074"></a>00074 KSycocaEntry::read(_str, mFlags);
<a name="l00075"></a>00075 _str >> iRead >> iWrite;
<a name="l00076"></a>00076 KSycocaEntry::read(_str, mSuffices);
<a name="l00077"></a>00077 KSycocaEntry::read(_str, mMimetype);
<a name="l00078"></a>00078 KSycocaEntry::read(_str, mLib);
<a name="l00079"></a>00079 KSycocaEntry::read(_str, mPattern);
<a name="l00080"></a>00080 KSycocaEntry::read(_str, rPaths);
<a name="l00081"></a>00081 bRead = (iRead != 0);
<a name="l00082"></a>00082 bWrite = (iWrite != 0);
<a name="l00083"></a>00083 }
<a name="l00084"></a>00084
<a name="l00085"></a>00085 <span class="keywordtype">void</span>
<a name="l00086"></a>00086 KImageIOFormat::save( <a class="codeRef" href="qdatastream.html">QDataStream</a>& _str)
<a name="l00087"></a>00087 {
<a name="l00088"></a>00088 KSycocaEntry::save( _str );
<a name="l00089"></a>00089 Q_INT8 iRead = bRead ? 1 : 0;
<a name="l00090"></a>00090 Q_INT8 iWrite = bWrite ? 1 : 0;
<a name="l00091"></a>00091
<a name="l00092"></a>00092 _str << mType << mHeader << mFlags << iRead << iWrite
<a name="l00093"></a>00093 << mSuffices << mMimetype << mLib << mPattern << rPaths;
<a name="l00094"></a>00094 }
<a name="l00095"></a>00095
<a name="l00096"></a>00096 <span class="keywordtype">void</span>
<a name="l00097"></a>00097 KImageIOFormat::callLibFunc( <span class="keywordtype">bool</span> read, <a class="codeRef" href="qimageio.html">QImageIO</a> *iio)
<a name="l00098"></a>00098 {
<a name="l00099"></a>00099 <span class="keywordflow">if</span> (!bLibLoaded)
<a name="l00100"></a>00100 {
<a name="l00101"></a>00101 <span class="keywordflow">if</span> (mLib.isEmpty())
<a name="l00102"></a>00102 {
<a name="l00103"></a>00103 iio-><a class="codeRef" href="qimageio.html#setStatus">setStatus</a>(1); <span class="comment">// Error</span>
<a name="l00104"></a>00104 <span class="keywordflow">return</span>;
<a name="l00105"></a>00105 }
<a name="l00106"></a>00106 <a class="codeRef" href="qstring.html">QString</a> libpath = KLibLoader::findLibrary(mLib.ascii());
<a name="l00107"></a>00107 <span class="keywordflow">if</span> ( libpath.<a class="codeRef" href="qstring.html#isEmpty">isEmpty</a>())
<a name="l00108"></a>00108 {
<a name="l00109"></a>00109 iio-><a class="codeRef" href="qimageio.html#setStatus">setStatus</a>(1); <span class="comment">// Error</span>
<a name="l00110"></a>00110 <span class="keywordflow">return</span>;
<a name="l00111"></a>00111 }
<a name="l00112"></a>00112 lt_dlhandle libhandle = lt_dlopen( <a class="codeRef" href="qfile.html#encodeName">QFile::encodeName</a>(libpath) );
<a name="l00113"></a>00113 <span class="keywordflow">if</span> (libhandle == 0) {
<a name="l00114"></a>00114 iio-><a class="codeRef" href="qimageio.html#setStatus">setStatus</a>(1); <span class="comment">// error</span>
<a name="l00115"></a>00115 kdWarning() << <span class="stringliteral">"KImageIOFormat::callLibFunc: couldn't dlopen "</span> << mLib << <span class="stringliteral">"("</span> << lt_dlerror() << <span class="stringliteral">")"</span> << endl;
<a name="l00116"></a>00116 <span class="keywordflow">return</span>;
<a name="l00117"></a>00117 }
<a name="l00118"></a>00118 bLibLoaded = <span class="keyword">true</span>;
<a name="l00119"></a>00119 <a class="codeRef" href="qstring.html">QString</a> funcName;
<a name="l00120"></a>00120 <span class="keywordflow">if</span> (bRead)
<a name="l00121"></a>00121 {
<a name="l00122"></a>00122 funcName = <span class="stringliteral">"kimgio_"</span>+mType.<a class="codeRef" href="qstring.html#lower">lower</a>()+<span class="stringliteral">"_read"</span>;
<a name="l00123"></a>00123 lt_ptr func = lt_dlsym(libhandle, funcName.<a class="codeRef" href="qstring.html#ascii">ascii</a>());
<a name="l00124"></a>00124
<a name="l00125"></a>00125 <span class="keywordflow">if</span> (func == NULL) {
<a name="l00126"></a>00126 iio-><a class="codeRef" href="qimageio.html#setStatus">setStatus</a>(1); <span class="comment">// error</span>
<a name="l00127"></a>00127 kdWarning() << <span class="stringliteral">"couln't find "</span> << funcName << <span class="stringliteral">" ("</span> << lt_dlerror() << <span class="stringliteral">")"</span> << endl;
<a name="l00128"></a>00128 }
<a name="l00129"></a>00129 mReadFunc = (void (*)(<a class="codeRef" href="qimageio.html">QImageIO</a> *))func;
<a name="l00130"></a>00130 }
<a name="l00131"></a>00131 <span class="keywordflow">if</span> (bWrite)
<a name="l00132"></a>00132 {
<a name="l00133"></a>00133 funcName = <span class="stringliteral">"kimgio_"</span>+mType.<a class="codeRef" href="qstring.html#lower">lower</a>()+<span class="stringliteral">"_write"</span>;
<a name="l00134"></a>00134 lt_ptr func = lt_dlsym(libhandle, funcName.<a class="codeRef" href="qstring.html#ascii">ascii</a>());
<a name="l00135"></a>00135
<a name="l00136"></a>00136 <span class="keywordflow">if</span> (func == NULL) {
<a name="l00137"></a>00137 iio-><a class="codeRef" href="qimageio.html#setStatus">setStatus</a>(1); <span class="comment">// error</span>
<a name="l00138"></a>00138 kdWarning() << <span class="stringliteral">"couln't find "</span> << funcName << <span class="stringliteral">" ("</span> << lt_dlerror() << <span class="stringliteral">")"</span> << endl;
<a name="l00139"></a>00139 }
<a name="l00140"></a>00140 mWriteFunc = (void (*)(<a class="codeRef" href="qimageio.html">QImageIO</a> *))func;
<a name="l00141"></a>00141 }
<a name="l00142"></a>00142
<a name="l00143"></a>00143 }
<a name="l00144"></a>00144 <span class="keywordflow">if</span> (read)
<a name="l00145"></a>00145 <span class="keywordflow">if</span> (mReadFunc)
<a name="l00146"></a>00146 mReadFunc(iio);
<a name="l00147"></a>00147 <span class="keywordflow">else</span>
<a name="l00148"></a>00148 iio-><a class="codeRef" href="qimageio.html#setStatus">setStatus</a>(1); <span class="comment">// Error</span>
<a name="l00149"></a>00149 <span class="keywordflow">else</span>
<a name="l00150"></a>00150 <span class="keywordflow">if</span> (mWriteFunc)
<a name="l00151"></a>00151 mWriteFunc(iio);
<a name="l00152"></a>00152 <span class="keywordflow">else</span>
<a name="l00153"></a>00153 iio-><a class="codeRef" href="qimageio.html#setStatus">setStatus</a>(1); <span class="comment">// Error</span>
<a name="l00154"></a>00154 }
<a name="l00155"></a>00155
<a name="l00156"></a>00156
<a name="l00157"></a>00157 KImageIOFactory *KImageIOFactory::_self = 0;
<a name="l00158"></a>00158 KImageIOFormatList *KImageIOFactory::formatList = 0;
<a name="l00159"></a>00159
<a name="l00160"></a>00160 <span class="keyword">static</span> KStaticDeleter<KImageIOFormatList> kiioflsd;
<a name="l00161"></a>00161
<a name="l00162"></a>00162 KImageIOFactory::KImageIOFactory() : KSycocaFactory( KST_KImageIO )
<a name="l00163"></a>00163 {
<a name="l00164"></a>00164 _self = <span class="keyword">this</span>;
<a name="l00165"></a>00165 <span class="keywordflow">if</span> (m_str)
<a name="l00166"></a>00166 {
<a name="l00167"></a>00167 <span class="comment">// read from database</span>
<a name="l00168"></a>00168 KSycocaEntry::read(*m_str, mReadPattern);
<a name="l00169"></a>00169 KSycocaEntry::read(*m_str, mWritePattern);
<a name="l00170"></a>00170 KSycocaEntry::read(*m_str, rPath);
<a name="l00171"></a>00171 <span class="keywordflow">if</span> (!formatList)
<a name="l00172"></a>00172 {
<a name="l00173"></a>00173 kiioflsd.setObject( formatList, <span class="keyword">new</span> KImageIOFormatList());
<a name="l00174"></a>00174 lt_dlinit(); <span class="comment">// Do this only once!</span>
<a name="l00175"></a>00175 <span class="comment">// Add rPaths.</span>
<a name="l00176"></a>00176 <span class="keywordflow">for</span>(QStringList::Iterator it = rPath.begin();
<a name="l00177"></a>00177 it != rPath.end(); ++it)
<a name="l00178"></a>00178 lt_dladdsearchdir( <a class="codeRef" href="qfile.html#encodeName">QFile::encodeName</a>(*it) );
<a name="l00179"></a>00179 }
<a name="l00180"></a>00180 load();
<a name="l00181"></a>00181 }
<a name="l00182"></a>00182 <span class="keywordflow">else</span>
<a name="l00183"></a>00183 <span class="keywordflow">if</span> (KSycoca::self()->isBuilding())
<a name="l00184"></a>00184 {
<a name="l00185"></a>00185 <span class="comment">// Build database</span>
<a name="l00186"></a>00186 <span class="keywordflow">if</span> (!formatList)
<a name="l00187"></a>00187 {
<a name="l00188"></a>00188 formatList = <span class="keyword">new</span> KImageIOFormatList();
<a name="l00189"></a>00189 }
<a name="l00190"></a>00190 } <span class="keywordflow">else</span>
<a name="l00191"></a>00191 {
<a name="l00192"></a>00192 <span class="comment">// We have no database at all.. uh-oh</span>
<a name="l00193"></a>00193 }
<a name="l00194"></a>00194 }
<a name="l00195"></a>00195
<a name="l00196"></a>00196 <a class="codeRef" href="qstring.html">QString</a>
<a name="l00197"></a>00197 KImageIOFactory::createPattern( <a class="code" href="classKImageIO.html#ad79b996ee99007df62a02f9dae406b36" title="Possible image file access modes.">KImageIO::Mode</a> _mode)
<a name="l00198"></a>00198 {
<a name="l00199"></a>00199 <a class="codeRef" href="qstringlist.html">QStringList</a> patterns;
<a name="l00200"></a>00200 <a class="codeRef" href="qstring.html">QString</a> allPatterns;
<a name="l00201"></a>00201 <a class="codeRef" href="qstring.html">QString</a> wildCard(<span class="stringliteral">"*."</span>);
<a name="l00202"></a>00202 <a class="codeRef" href="qstring.html">QString</a> separator(<span class="stringliteral">"|"</span>);
<a name="l00203"></a>00203 <span class="keywordflow">for</span>( KImageIOFormatList::ConstIterator it = formatList->begin();
<a name="l00204"></a>00204 it != formatList->end();
<a name="l00205"></a>00205 ++it )
<a name="l00206"></a>00206 {
<a name="l00207"></a>00207 KImageIOFormat *format = (*it);
<a name="l00208"></a>00208 <span class="keywordflow">if</span> (((_mode == KImageIO::Reading) && format->bRead) ||
<a name="l00209"></a>00209 ((_mode == KImageIO::Writing) && format->bWrite))
<a name="l00210"></a>00210 {
<a name="l00211"></a>00211 <a class="codeRef" href="qstring.html">QString</a> pattern;
<a name="l00212"></a>00212 <a class="codeRef" href="qstringlist.html">QStringList</a> suffices = format->mSuffices;
<a name="l00213"></a>00213 <span class="keywordflow">for</span>( QStringList::ConstIterator it = suffices.begin();
<a name="l00214"></a>00214 it != suffices.end();
<a name="l00215"></a>00215 ++it)
<a name="l00216"></a>00216 {
<a name="l00217"></a>00217 <span class="keywordflow">if</span> (!pattern.<a class="codeRef" href="qstring.html#isEmpty">isEmpty</a>())
<a name="l00218"></a>00218 pattern += <span class="stringliteral">" "</span>;
<a name="l00219"></a>00219 pattern = pattern + wildCard+(*it);
<a name="l00220"></a>00220 <span class="keywordflow">if</span> (!allPatterns.<a class="codeRef" href="qstring.html#isEmpty">isEmpty</a>())
<a name="l00221"></a>00221 allPatterns += <span class="stringliteral">" "</span>;
<a name="l00222"></a>00222 allPatterns = allPatterns + wildCard +(*it);
<a name="l00223"></a>00223 }
<a name="l00224"></a>00224 <span class="keywordflow">if</span> (!pattern.<a class="codeRef" href="qstring.html#isEmpty">isEmpty</a>())
<a name="l00225"></a>00225 {
<a name="l00226"></a>00226 pattern = pattern + separator + format->mPattern;
<a name="l00227"></a>00227 patterns.append(pattern);
<a name="l00228"></a>00228 }
<a name="l00229"></a>00229 }
<a name="l00230"></a>00230 }
<a name="l00231"></a>00231 allPatterns = allPatterns + separator + i18n(<span class="stringliteral">"All Pictures"</span>);
<a name="l00232"></a>00232 patterns.<a class="codeRef" href="qstringlist.html#sort">sort</a>();
<a name="l00233"></a>00233 patterns.prepend(allPatterns);
<a name="l00234"></a>00234
<a name="l00235"></a>00235 <a class="codeRef" href="qstring.html">QString</a> pattern = patterns.<a class="codeRef" href="qstringlist.html#join">join</a>(<a class="codeRef" href="qstring.html#fromLatin1">QString::fromLatin1</a>(<span class="stringliteral">"\n"</span>));
<a name="l00236"></a>00236 <span class="keywordflow">return</span> pattern;
<a name="l00237"></a>00237 }
<a name="l00238"></a>00238
<a name="l00239"></a>00239 <span class="keywordtype">void</span>
<a name="l00240"></a>00240 KImageIOFactory::readImage( <a class="codeRef" href="qimageio.html">QImageIO</a> *iio)
<a name="l00241"></a>00241 {
<a name="l00242"></a>00242 (void) <span class="keyword">self</span>(); <span class="comment">// Make sure we exist</span>
<a name="l00243"></a>00243 <span class="keyword">const</span> <span class="keywordtype">char</span> *fm = iio-><a class="codeRef" href="qimageio.html#format">format</a>();
<a name="l00244"></a>00244 <span class="keywordflow">if</span> (!fm)
<a name="l00245"></a>00245 fm = <a class="codeRef" href="qimageio.html#imageFormat">QImageIO::imageFormat</a>( iio-><a class="codeRef" href="qimageio.html#ioDevice">ioDevice</a>());
<a name="l00246"></a>00246 kdDebug() << <span class="stringliteral">"KImageIO: readImage() format = "</span> << fm << endl;
<a name="l00247"></a>00247
<a name="l00248"></a>00248 KImageIOFormat *format = 0;
<a name="l00249"></a>00249 <span class="keywordflow">for</span>( KImageIOFormatList::ConstIterator it = formatList->begin();
<a name="l00250"></a>00250 it != formatList->end();
<a name="l00251"></a>00251 ++it )
<a name="l00252"></a>00252 {
<a name="l00253"></a>00253 format = (*it);
<a name="l00254"></a>00254 <span class="keywordflow">if</span> (format->mType == fm)
<a name="l00255"></a>00255 <span class="keywordflow">break</span>;
<a name="l00256"></a>00256 }
<a name="l00257"></a>00257 <span class="keywordflow">if</span> (!format || !format->bRead)
<a name="l00258"></a>00258 {
<a name="l00259"></a>00259 iio-><a class="codeRef" href="qimageio.html#setStatus">setStatus</a>(1); <span class="comment">// error</span>
<a name="l00260"></a>00260 <span class="keywordflow">return</span>;
<a name="l00261"></a>00261 }
<a name="l00262"></a>00262
<a name="l00263"></a>00263 format->callLibFunc( <span class="keyword">true</span>, iio);
<a name="l00264"></a>00264 }
<a name="l00265"></a>00265
<a name="l00266"></a>00266 <span class="keywordtype">void</span>
<a name="l00267"></a>00267 KImageIOFactory::writeImage( <a class="codeRef" href="qimageio.html">QImageIO</a> *iio)
<a name="l00268"></a>00268 {
<a name="l00269"></a>00269 (void) <span class="keyword">self</span>(); <span class="comment">// Make sure we exist</span>
<a name="l00270"></a>00270 <span class="keyword">const</span> <span class="keywordtype">char</span> *fm = iio-><a class="codeRef" href="qimageio.html#format">format</a>();
<a name="l00271"></a>00271 <span class="keywordflow">if</span> (!fm)
<a name="l00272"></a>00272 fm = <a class="codeRef" href="qimageio.html#imageFormat">QImageIO::imageFormat</a>( iio-><a class="codeRef" href="qimageio.html#ioDevice">ioDevice</a>());
<a name="l00273"></a>00273 kdDebug () << <span class="stringliteral">"KImageIO: writeImage() format = "</span><< fm << endl;
<a name="l00274"></a>00274
<a name="l00275"></a>00275 KImageIOFormat *format = 0;
<a name="l00276"></a>00276 <span class="keywordflow">for</span>( KImageIOFormatList::ConstIterator it = formatList->begin();
<a name="l00277"></a>00277 it != formatList->end();
<a name="l00278"></a>00278 ++it )
<a name="l00279"></a>00279 {
<a name="l00280"></a>00280 format = (*it);
<a name="l00281"></a>00281 <span class="keywordflow">if</span> (format->mType == fm)
<a name="l00282"></a>00282 <span class="keywordflow">break</span>;
<a name="l00283"></a>00283 }
<a name="l00284"></a>00284 <span class="keywordflow">if</span> (!format || !format->bWrite)
<a name="l00285"></a>00285 {
<a name="l00286"></a>00286 iio-><a class="codeRef" href="qimageio.html#setStatus">setStatus</a>(1); <span class="comment">// error</span>
<a name="l00287"></a>00287 <span class="keywordflow">return</span>;
<a name="l00288"></a>00288 }
<a name="l00289"></a>00289
<a name="l00290"></a>00290 format->callLibFunc( <span class="keyword">false</span>, iio);
<a name="l00291"></a>00291 }
<a name="l00292"></a>00292
<a name="l00293"></a>00293 <span class="keywordtype">void</span>
<a name="l00294"></a>00294 KImageIOFactory::load()
<a name="l00295"></a>00295 {
<a name="l00296"></a>00296 KSycocaEntry::List list = allEntries();
<a name="l00297"></a>00297 <span class="keywordflow">for</span>( KSycocaEntry::List::Iterator it = list.begin();
<a name="l00298"></a>00298 it != list.end();
<a name="l00299"></a>00299 ++it)
<a name="l00300"></a>00300 {
<a name="l00301"></a>00301 KSycocaEntry *entry = <span class="keyword">static_cast<</span>KSycocaEntry *<span class="keyword">></span>(*it);
<a name="l00302"></a>00302 KImageIOFormat *format = <span class="keyword">static_cast<</span>KImageIOFormat *<span class="keyword">></span>(entry);
<a name="l00303"></a>00303
<a name="l00304"></a>00304 <span class="comment">// Since Qt doesn't allow us to unregister image formats</span>
<a name="l00305"></a>00305 <span class="comment">// we have to make sure not to add them a second time.</span>
<a name="l00306"></a>00306 <span class="comment">// This typically happens when the sycoca database was updated</span>
<a name="l00307"></a>00307 <span class="comment">// we need to reread it.</span>
<a name="l00308"></a>00308 <span class="keywordflow">for</span>( KImageIOFormatList::ConstIterator it = formatList->begin();
<a name="l00309"></a>00309 it != formatList->end();
<a name="l00310"></a>00310 ++it )
<a name="l00311"></a>00311 {
<a name="l00312"></a>00312 KImageIOFormat *_format = (*it);
<a name="l00313"></a>00313 <span class="keywordflow">if</span> (format->mType == _format->mType)
<a name="l00314"></a>00314 {
<a name="l00315"></a>00315 <span class="comment">// Already in list</span>
<a name="l00316"></a>00316 format = 0;
<a name="l00317"></a>00317 <span class="keywordflow">break</span>;
<a name="l00318"></a>00318 }
<a name="l00319"></a>00319 }
<a name="l00320"></a>00320 <span class="keywordflow">if</span> (!format)
<a name="l00321"></a>00321 <span class="keywordflow">continue</span>;
<a name="l00322"></a>00322 <span class="keywordflow">if</span> (!format->mHeader.isEmpty() && !format->mLib.isEmpty())
<a name="l00323"></a>00323 {
<a name="l00324"></a>00324 void (*readFunc)(<a class="codeRef" href="qimageio.html">QImageIO</a> *);
<a name="l00325"></a>00325 void (*writeFunc)(<a class="codeRef" href="qimageio.html">QImageIO</a> *);
<a name="l00326"></a>00326 <span class="keywordflow">if</span> (format->bRead)
<a name="l00327"></a>00327 readFunc = readImage;
<a name="l00328"></a>00328 <span class="keywordflow">else</span>
<a name="l00329"></a>00329 readFunc = 0;
<a name="l00330"></a>00330 <span class="keywordflow">if</span> (format->bWrite)
<a name="l00331"></a>00331 writeFunc = writeImage;
<a name="l00332"></a>00332 <span class="keywordflow">else</span>
<a name="l00333"></a>00333 writeFunc = 0;
<a name="l00334"></a>00334 <a class="codeRef" href="qimageio.html#defineIOHandler">QImageIO::defineIOHandler</a>( format->mType.ascii(),
<a name="l00335"></a>00335 format->mHeader.ascii(),
<a name="l00336"></a>00336 format->mFlags.ascii(),
<a name="l00337"></a>00337 readFunc, writeFunc);
<a name="l00338"></a>00338 }
<a name="l00339"></a>00339 formatList->append( format );
<a name="l00340"></a>00340 }
<a name="l00341"></a>00341 }
<a name="l00342"></a>00342
<a name="l00343"></a>00343 KImageIOFactory::~KImageIOFactory()
<a name="l00344"></a>00344 {
<a name="l00345"></a>00345 _self = 0;
<a name="l00346"></a>00346
<a name="l00347"></a>00347 <span class="comment">// We would like to:</span>
<a name="l00348"></a>00348 <span class="comment">// * Free all KImageIOFormats.</span>
<a name="l00349"></a>00349 <span class="comment">// * Unload libs</span>
<a name="l00350"></a>00350 <span class="comment">// * Remove Qt IO handlers.</span>
<a name="l00351"></a>00351 <span class="comment">// But we can't remove IO handlers, so we better keep all KImageIOFormats</span>
<a name="l00352"></a>00352 <span class="comment">// in memory so that we can make sure not register IO handlers again whenever</span>
<a name="l00353"></a>00353 <span class="comment">// the sycoca database updates (Such event deletes this factory)</span>
<a name="l00354"></a>00354 }
<a name="l00355"></a>00355
<a name="l00356"></a>00356 KSycocaEntry*
<a name="l00357"></a>00357 KImageIOFactory::createEntry(<span class="keywordtype">int</span> offset)
<a name="l00358"></a>00358 {
<a name="l00359"></a>00359 KImageIOFormat *format = 0;
<a name="l00360"></a>00360 KSycocaType type;
<a name="l00361"></a>00361 <a class="codeRef" href="qdatastream.html">QDataStream</a> *str = KSycoca::self()->findEntry(offset, type);
<a name="l00362"></a>00362 <span class="keywordflow">switch</span> (type)
<a name="l00363"></a>00363 {
<a name="l00364"></a>00364 <span class="keywordflow">case</span> KST_KImageIOFormat:
<a name="l00365"></a>00365 format = <span class="keyword">new</span> KImageIOFormat(*str, offset);
<a name="l00366"></a>00366 <span class="keywordflow">break</span>;
<a name="l00367"></a>00367 <span class="keywordflow">default</span>:
<a name="l00368"></a>00368 <span class="keywordflow">return</span> 0;
<a name="l00369"></a>00369 }
<a name="l00370"></a>00370 <span class="keywordflow">if</span> (!format->isValid())
<a name="l00371"></a>00371 {
<a name="l00372"></a>00372 <span class="keyword">delete</span> format;
<a name="l00373"></a>00373 format = 0;
<a name="l00374"></a>00374 }
<a name="l00375"></a>00375 <span class="keywordflow">return</span> format;
<a name="l00376"></a>00376 }
<a name="l00377"></a>00377
<a name="l00378"></a><a class="code" href="classKImageIO.html#a342f8ab6228cf9dd2fa001d46d37a470">00378</a> <span class="keywordtype">void</span> <a class="code" href="classKImageIO.html#a342f8ab6228cf9dd2fa001d46d37a470" title="Registers all KImageIO supported formats.">KImageIO::registerFormats</a>()
<a name="l00379"></a>00379 {
<a name="l00380"></a>00380 (void) KImageIOFactory::self();
<a name="l00381"></a>00381 }
<a name="l00382"></a>00382
<a name="l00383"></a>00383 <a class="codeRef" href="qstring.html">QString</a>
<a name="l00384"></a><a class="code" href="classKImageIO.html#a987bac2ffa52e8d38ef4344e50c3fa9f">00384</a> <a class="code" href="classKImageIO.html#a987bac2ffa52e8d38ef4344e50c3fa9f" title="Returns a list of patterns of all KImageIO supported formats.">KImageIO::pattern</a>(<a class="code" href="classKImageIO.html#ad79b996ee99007df62a02f9dae406b36" title="Possible image file access modes.">Mode</a> _mode)
<a name="l00385"></a>00385 {
<a name="l00386"></a>00386 <span class="keywordflow">if</span> (_mode == Reading)
<a name="l00387"></a>00387 <span class="keywordflow">return</span> KImageIOFactory::self()->mReadPattern;
<a name="l00388"></a>00388 <span class="keywordflow">else</span>
<a name="l00389"></a>00389 <span class="keywordflow">return</span> KImageIOFactory::self()->mWritePattern;
<a name="l00390"></a>00390 }
<a name="l00391"></a>00391
<a name="l00392"></a><a class="code" href="classKImageIO.html#a1467d1ee38625c76ba942b3e2e20868e">00392</a> <span class="keywordtype">bool</span> <a class="code" href="classKImageIO.html#a1467d1ee38625c76ba942b3e2e20868e" title="Checks if a special type is supported for writing.">KImageIO::canWrite</a>(<span class="keyword">const</span> <a class="codeRef" href="qstring.html">QString</a>& type)
<a name="l00393"></a>00393 {
<a name="l00394"></a>00394 KImageIOFormatList *formatList = KImageIOFactory::self()->formatList;
<a name="l00395"></a>00395
<a name="l00396"></a>00396 <span class="keywordflow">if</span>(formatList)
<a name="l00397"></a>00397 {
<a name="l00398"></a>00398 <span class="keywordflow">for</span>( KImageIOFormatList::ConstIterator it = formatList->begin();
<a name="l00399"></a>00399 it != formatList->end();
<a name="l00400"></a>00400 ++it )
<a name="l00401"></a>00401 {
<a name="l00402"></a>00402 KImageIOFormat *format = (*it);
<a name="l00403"></a>00403 <span class="keywordflow">if</span> (format->mType == type)
<a name="l00404"></a>00404 <span class="keywordflow">return</span> format->bWrite;
<a name="l00405"></a>00405 }
<a name="l00406"></a>00406 }
<a name="l00407"></a>00407
<a name="l00408"></a>00408 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00409"></a>00409 }
<a name="l00410"></a>00410
<a name="l00411"></a><a class="code" href="classKImageIO.html#a7e82ff1cf81838afefe0b79c8a5b7720">00411</a> <span class="keywordtype">bool</span> <a class="code" href="classKImageIO.html#a7e82ff1cf81838afefe0b79c8a5b7720" title="Checks if a special type is supported for reading.">KImageIO::canRead</a>(<span class="keyword">const</span> <a class="codeRef" href="qstring.html">QString</a>& type)
<a name="l00412"></a>00412 {
<a name="l00413"></a>00413 KImageIOFormatList *formatList = KImageIOFactory::self()->formatList;
<a name="l00414"></a>00414
<a name="l00415"></a>00415 <span class="keywordflow">if</span>(formatList)
<a name="l00416"></a>00416 {
<a name="l00417"></a>00417 <span class="keywordflow">for</span>( KImageIOFormatList::ConstIterator it = formatList->begin();
<a name="l00418"></a>00418 it != formatList->end();
<a name="l00419"></a>00419 ++it )
<a name="l00420"></a>00420 {
<a name="l00421"></a>00421 KImageIOFormat *format = (*it);
<a name="l00422"></a>00422 <span class="keywordflow">if</span> (format->mType == type)
<a name="l00423"></a>00423 <span class="keywordflow">return</span> format->bRead;
<a name="l00424"></a>00424 }
<a name="l00425"></a>00425 }
<a name="l00426"></a>00426
<a name="l00427"></a>00427 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00428"></a>00428 }
<a name="l00429"></a>00429
<a name="l00430"></a><a class="code" href="classKImageIO.html#a6e3d6463aef68ce3623f93fb4c5d8a16">00430</a> <a class="codeRef" href="qstringlist.html">QStringList</a> <a class="code" href="classKImageIO.html#a6e3d6463aef68ce3623f93fb4c5d8a16" title="Returns a list of all KImageIO supported formats.">KImageIO::types</a>(<a class="code" href="classKImageIO.html#ad79b996ee99007df62a02f9dae406b36" title="Possible image file access modes.">Mode</a> _mode ) {
<a name="l00431"></a>00431 KImageIOFormatList *formatList = KImageIOFactory::self()->formatList;
<a name="l00432"></a>00432 <a class="codeRef" href="qstringlist.html">QStringList</a> <a class="code" href="classKImageIO.html#a6e3d6463aef68ce3623f93fb4c5d8a16" title="Returns a list of all KImageIO supported formats.">types</a>;
<a name="l00433"></a>00433
<a name="l00434"></a>00434 <span class="keywordflow">if</span>(formatList)
<a name="l00435"></a>00435 {
<a name="l00436"></a>00436 <span class="keywordflow">for</span>( KImageIOFormatList::ConstIterator it = formatList->begin();
<a name="l00437"></a>00437 it != formatList->end();
<a name="l00438"></a>00438 ++it )
<a name="l00439"></a>00439 {
<a name="l00440"></a>00440 KImageIOFormat *format = (*it);
<a name="l00441"></a>00441 <span class="keywordflow">if</span> (((_mode == Reading) && format->bRead) ||
<a name="l00442"></a>00442 ((_mode == Writing) && format->bWrite))
<a name="l00443"></a>00443 types.append(format->mType);
<a name="l00444"></a>00444 }
<a name="l00445"></a>00445 }
<a name="l00446"></a>00446
<a name="l00447"></a>00447 <span class="keywordflow">return</span> <a class="code" href="classKImageIO.html#a6e3d6463aef68ce3623f93fb4c5d8a16" title="Returns a list of all KImageIO supported formats.">types</a>;
<a name="l00448"></a>00448 }
<a name="l00449"></a>00449
<a name="l00450"></a><a class="code" href="classKImageIO.html#ac2853a7033d385ec3f88ff8ab7cee633">00450</a> <a class="codeRef" href="qstring.html">QString</a> <a class="code" href="classKImageIO.html#ac2853a7033d385ec3f88ff8ab7cee633" title="Returns the suffix of an image type.">KImageIO::suffix</a>(<span class="keyword">const</span> <a class="codeRef" href="qstring.html">QString</a>& type)
<a name="l00451"></a>00451 {
<a name="l00452"></a>00452 KImageIOFormatList *formatList = KImageIOFactory::self()->formatList;
<a name="l00453"></a>00453
<a name="l00454"></a>00454 <span class="keywordflow">if</span>(formatList)
<a name="l00455"></a>00455 {
<a name="l00456"></a>00456 <span class="keywordflow">for</span>( KImageIOFormatList::ConstIterator it = formatList->begin();
<a name="l00457"></a>00457 it != formatList->end();
<a name="l00458"></a>00458 ++it )
<a name="l00459"></a>00459 {
<a name="l00460"></a>00460 KImageIOFormat *format = (*it);
<a name="l00461"></a>00461 <span class="keywordflow">if</span> (format->mType == type)
<a name="l00462"></a>00462 <span class="keywordflow">return</span> format->mSuffices[0];
<a name="l00463"></a>00463 }
<a name="l00464"></a>00464 }
<a name="l00465"></a>00465
<a name="l00466"></a>00466 <span class="keywordflow">return</span> QString::null;
<a name="l00467"></a>00467 }
<a name="l00468"></a>00468
<a name="l00469"></a><a class="code" href="classKImageIO.html#ad22451c575c515930a14cfd34bf803c4">00469</a> <a class="codeRef" href="qstring.html">QString</a> <a class="code" href="classKImageIO.html#ad22451c575c515930a14cfd34bf803c4" title="Returns the type of a MIME type.">KImageIO::typeForMime</a>(<span class="keyword">const</span> <a class="codeRef" href="qstring.html">QString</a>& mimeType)
<a name="l00470"></a>00470 {
<a name="l00471"></a>00471 KImageIOFormatList *formatList = KImageIOFactory::self()->formatList;
<a name="l00472"></a>00472
<a name="l00473"></a>00473 <span class="keywordflow">if</span>(formatList)
<a name="l00474"></a>00474 {
<a name="l00475"></a>00475 <span class="keywordflow">for</span>( KImageIOFormatList::ConstIterator it = formatList->begin();
<a name="l00476"></a>00476 it != formatList->end();
<a name="l00477"></a>00477 ++it )
<a name="l00478"></a>00478 {
<a name="l00479"></a>00479 KImageIOFormat *format = (*it);
<a name="l00480"></a>00480 <span class="keywordflow">if</span> (format->mMimetype == mimeType)
<a name="l00481"></a>00481 <span class="keywordflow">return</span> format->mType;
<a name="l00482"></a>00482 }
<a name="l00483"></a>00483 }
<a name="l00484"></a>00484
<a name="l00485"></a>00485 <span class="keywordflow">return</span> QString::null;
<a name="l00486"></a>00486 }
<a name="l00487"></a>00487
<a name="l00488"></a><a class="code" href="classKImageIO.html#a0f2fae508bbba5ce04f09f97fe944839">00488</a> <a class="codeRef" href="qstring.html">QString</a> <a class="code" href="classKImageIO.html#a0f2fae508bbba5ce04f09f97fe944839" title="Returns the type of given filename.">KImageIO::type</a>(<span class="keyword">const</span> <a class="codeRef" href="qstring.html">QString</a>& filename)
<a name="l00489"></a>00489 {
<a name="l00490"></a>00490 KImageIOFormatList *formatList = KImageIOFactory::self()->formatList;
<a name="l00491"></a>00491 <a class="codeRef" href="qstring.html">QString</a> <a class="code" href="classKImageIO.html#ac2853a7033d385ec3f88ff8ab7cee633" title="Returns the suffix of an image type.">suffix</a> = filename;
<a name="l00492"></a>00492 <span class="keywordtype">int</span> dot = suffix.<a class="codeRef" href="qstring.html#findRev">findRev</a>(<span class="charliteral">'.'</span>);
<a name="l00493"></a>00493 <span class="keywordflow">if</span> (dot >= 0)
<a name="l00494"></a>00494 suffix = suffix.<a class="codeRef" href="qstring.html#mid">mid</a>(dot + 1);
<a name="l00495"></a>00495
<a name="l00496"></a>00496 <span class="keywordflow">if</span>(formatList)
<a name="l00497"></a>00497 {
<a name="l00498"></a>00498 <span class="keywordflow">for</span>( KImageIOFormatList::ConstIterator it = formatList->begin();
<a name="l00499"></a>00499 it != formatList->end();
<a name="l00500"></a>00500 ++it )
<a name="l00501"></a>00501 {
<a name="l00502"></a>00502 KImageIOFormat *format = (*it);
<a name="l00503"></a>00503 <span class="keywordflow">if</span> (format->mSuffices.contains(suffix))
<a name="l00504"></a>00504 <span class="keywordflow">return</span> format->mType;
<a name="l00505"></a>00505 }
<a name="l00506"></a>00506 }
<a name="l00507"></a>00507
<a name="l00508"></a>00508 <span class="keywordflow">return</span> QString::null;
<a name="l00509"></a>00509 }
<a name="l00510"></a>00510
<a name="l00511"></a><a class="code" href="classKImageIO.html#a0f72c2f7bdd2e95372b8bf028672bcbb">00511</a> <a class="codeRef" href="qstringlist.html">QStringList</a> <a class="code" href="classKImageIO.html#a0f72c2f7bdd2e95372b8bf028672bcbb" title="Returns a list of MIME types for all KImageIO supported formats.">KImageIO::mimeTypes</a>( <a class="code" href="classKImageIO.html#ad79b996ee99007df62a02f9dae406b36" title="Possible image file access modes.">Mode</a> _mode )
<a name="l00512"></a>00512 {
<a name="l00513"></a>00513 KImageIOFormatList *formatList = KImageIOFactory::self()->formatList;
<a name="l00514"></a>00514 <a class="codeRef" href="qstringlist.html">QStringList</a> mimeList;
<a name="l00515"></a>00515
<a name="l00516"></a>00516 <span class="keywordflow">if</span>(formatList)
<a name="l00517"></a>00517 {
<a name="l00518"></a>00518 <span class="keywordflow">for</span>( KImageIOFormatList::ConstIterator it = formatList->begin();
<a name="l00519"></a>00519 it != formatList->end();
<a name="l00520"></a>00520 ++it )
<a name="l00521"></a>00521 {
<a name="l00522"></a>00522 KImageIOFormat *format = (*it);
<a name="l00523"></a>00523 <span class="keywordflow">if</span> (((_mode == Reading) && format->bRead) ||
<a name="l00524"></a>00524 ((_mode == Writing) && format->bWrite))
<a name="l00525"></a>00525 <span class="keywordflow">if</span> ( !format->mMimetype.isEmpty() )
<a name="l00526"></a>00526 mimeList.append ( format->mMimetype );
<a name="l00527"></a>00527 }
<a name="l00528"></a>00528 }
<a name="l00529"></a>00529
<a name="l00530"></a>00530 <span class="keywordflow">return</span> mimeList;
<a name="l00531"></a>00531 }
<a name="l00532"></a>00532
<a name="l00533"></a><a class="code" href="classKImageIO.html#a770298d4e365c55da096cef248313dc0">00533</a> <span class="keywordtype">bool</span> <a class="code" href="classKImageIO.html#a770298d4e365c55da096cef248313dc0" title="Test to see whether a MIME type is supported to reading/writing.">KImageIO::isSupported</a>( <span class="keyword">const</span> <a class="codeRef" href="qstring.html">QString</a>& _mimeType, <a class="code" href="classKImageIO.html#ad79b996ee99007df62a02f9dae406b36" title="Possible image file access modes.">Mode</a> _mode )
<a name="l00534"></a>00534 {
<a name="l00535"></a>00535 KImageIOFormatList *formatList = KImageIOFactory::self()->formatList;
<a name="l00536"></a>00536
<a name="l00537"></a>00537 <span class="keywordflow">if</span>(formatList)
<a name="l00538"></a>00538 {
<a name="l00539"></a>00539 <span class="keywordflow">for</span>( KImageIOFormatList::ConstIterator it = formatList->begin();
<a name="l00540"></a>00540 it != formatList->end();
<a name="l00541"></a>00541 ++it )
<a name="l00542"></a>00542 {
<a name="l00543"></a>00543 KImageIOFormat *format = (*it);
<a name="l00544"></a>00544 <span class="keywordflow">if</span> (format->mMimetype == _mimeType)
<a name="l00545"></a>00545 {
<a name="l00546"></a>00546 <span class="keywordflow">if</span> (((_mode == Reading) && format->bRead) ||
<a name="l00547"></a>00547 ((_mode == Writing) && format->bWrite))
<a name="l00548"></a>00548 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00549"></a>00549 }
<a name="l00550"></a>00550 }
<a name="l00551"></a>00551 }
<a name="l00552"></a>00552
<a name="l00553"></a>00553 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00554"></a>00554 }
<a name="l00555"></a>00555
<a name="l00556"></a><a class="code" href="classKImageIO.html#a752b6c23f3181d3cc8395e90ae2b56d9">00556</a> <a class="codeRef" href="qstring.html">QString</a> <a class="code" href="classKImageIO.html#a752b6c23f3181d3cc8395e90ae2b56d9" title="Returns the MIME type of _filename.">KImageIO::mimeType</a>( <span class="keyword">const</span> <a class="codeRef" href="qstring.html">QString</a>& _filename )
<a name="l00557"></a>00557 {
<a name="l00558"></a>00558 <span class="keywordflow">return</span> <a class="code" href="classKMimeType.html#a19c6563574d22a7395c4686c06e1dec9" title="Finds a KMimeType with the given _url.">KMimeType::findByURL</a>( KURL( _filename ) )->name();
<a name="l00559"></a>00559 }
<a name="l00560"></a>00560
<a name="l00561"></a>00561 <span class="keywordtype">void</span> KImageIOFormat::virtual_hook( <span class="keywordtype">int</span> <span class="keywordtype">id</span>, <span class="keywordtype">void</span>* data )
<a name="l00562"></a>00562 { KSycocaEntry::virtual_hook( <span class="keywordtype">id</span>, data ); }
<a name="l00563"></a>00563
<a name="l00564"></a>00564 <span class="keywordtype">void</span> KImageIOFactory::virtual_hook( <span class="keywordtype">int</span> <span class="keywordtype">id</span>, <span class="keywordtype">void</span>* data )
<a name="l00565"></a>00565 { KSycocaFactory::virtual_hook( <span class="keywordtype">id</span>, data ); }
<a name="l00566"></a>00566
</pre></div></div>
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