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<div class="title">previewjob.cpp</div> </div>
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<div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">// -*- c++ -*-</span>
<a name="l00002"></a>00002 <span class="comment">// vim: ts=4 sw=4 et</span>
<a name="l00003"></a>00003 <span class="comment">/* This file is part of the KDE libraries</span>
<a name="l00004"></a>00004 <span class="comment"> Copyright (C) 2000 David Faure <faure@kde.org></span>
<a name="l00005"></a>00005 <span class="comment"> 2000 Carsten Pfeiffer <pfeiffer@kde.org></span>
<a name="l00006"></a>00006 <span class="comment"> 2001 Malte Starostik <malte.starostik@t-online.de></span>
<a name="l00007"></a>00007 <span class="comment"></span>
<a name="l00008"></a>00008 <span class="comment"> This library is free software; you can redistribute it and/or</span>
<a name="l00009"></a>00009 <span class="comment"> modify it under the terms of the GNU Library General Public</span>
<a name="l00010"></a>00010 <span class="comment"> License as published by the Free Software Foundation; either</span>
<a name="l00011"></a>00011 <span class="comment"> version 2 of the License, or (at your option) any later version.</span>
<a name="l00012"></a>00012 <span class="comment"></span>
<a name="l00013"></a>00013 <span class="comment"> This library is distributed in the hope that it will be useful,</span>
<a name="l00014"></a>00014 <span class="comment"> but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<a name="l00015"></a>00015 <span class="comment"> MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</span>
<a name="l00016"></a>00016 <span class="comment"> Library General Public License for more details.</span>
<a name="l00017"></a>00017 <span class="comment"></span>
<a name="l00018"></a>00018 <span class="comment"> You should have received a copy of the GNU Library General Public License</span>
<a name="l00019"></a>00019 <span class="comment"> along with this library; see the file COPYING.LIB. If not, write to</span>
<a name="l00020"></a>00020 <span class="comment"> the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,</span>
<a name="l00021"></a>00021 <span class="comment"> Boston, MA 02110-1301, USA.</span>
<a name="l00022"></a>00022 <span class="comment">*/</span>
<a name="l00023"></a>00023
<a name="l00024"></a>00024 <span class="preprocessor">#include "previewjob.h"</span>
<a name="l00025"></a>00025
<a name="l00026"></a>00026 <span class="preprocessor">#include <sys/stat.h></span>
<a name="l00027"></a>00027 <span class="preprocessor">#ifdef __FreeBSD__</span>
<a name="l00028"></a>00028 <span class="preprocessor"></span><span class="preprocessor"> #include <machine/param.h></span>
<a name="l00029"></a>00029 <span class="preprocessor">#endif</span>
<a name="l00030"></a>00030 <span class="preprocessor"></span><span class="preprocessor">#include <sys/types.h></span>
<a name="l00031"></a>00031
<a name="l00032"></a>00032 <span class="preprocessor">#ifdef Q_OS_UNIX</span>
<a name="l00033"></a>00033 <span class="preprocessor"></span><span class="preprocessor">#include <sys/ipc.h></span>
<a name="l00034"></a>00034 <span class="preprocessor">#include <sys/shm.h></span>
<a name="l00035"></a>00035 <span class="preprocessor">#endif</span>
<a name="l00036"></a>00036 <span class="preprocessor"></span>
<a name="l00037"></a>00037 <span class="preprocessor">#include <qdir.h></span>
<a name="l00038"></a>00038 <span class="preprocessor">#include <qfile.h></span>
<a name="l00039"></a>00039 <span class="preprocessor">#include <qimage.h></span>
<a name="l00040"></a>00040 <span class="preprocessor">#include <qtimer.h></span>
<a name="l00041"></a>00041 <span class="preprocessor">#include <qregexp.h></span>
<a name="l00042"></a>00042
<a name="l00043"></a>00043 <span class="preprocessor">#include <kdatastream.h></span> <span class="comment">// Do not remove, needed for correct bool serialization</span>
<a name="l00044"></a>00044 <span class="preprocessor">#include <kfileitem.h></span>
<a name="l00045"></a>00045 <span class="preprocessor">#include <kapplication.h></span>
<a name="l00046"></a>00046 <span class="preprocessor">#include <ktempfile.h></span>
<a name="l00047"></a>00047 <span class="preprocessor">#include <ktrader.h></span>
<a name="l00048"></a>00048 <span class="preprocessor">#include <kmdcodec.h></span>
<a name="l00049"></a>00049 <span class="preprocessor">#include <kglobal.h></span>
<a name="l00050"></a>00050 <span class="preprocessor">#include <kstandarddirs.h></span>
<a name="l00051"></a>00051
<a name="l00052"></a>00052 <span class="preprocessor">#include <kio/kservice.h></span>
<a name="l00053"></a>00053
<a name="l00054"></a>00054 <span class="preprocessor">#include "previewjob.moc"</span>
<a name="l00055"></a>00055
<a name="l00056"></a>00056 <span class="keyword">namespace </span>KIO { <span class="keyword">struct </span>PreviewItem; }
<a name="l00057"></a>00057 <span class="keyword">using namespace </span>KIO;
<a name="l00058"></a>00058
<a name="l00059"></a>00059 <span class="keyword">struct </span>KIO::PreviewItem
<a name="l00060"></a>00060 {
<a name="l00061"></a>00061 <a class="code" href="classKFileItem.html" title="A KFileItem is a generic class to handle a file, local or remote.">KFileItem</a> *item;
<a name="l00062"></a>00062 KService::Ptr plugin;
<a name="l00063"></a>00063 };
<a name="l00064"></a>00064
<a name="l00065"></a>00065 <span class="keyword">struct </span>KIO::PreviewJobPrivate
<a name="l00066"></a>00066 {
<a name="l00067"></a>00067 <span class="keyword">enum</span> { STATE_STATORIG, <span class="comment">// if the thumbnail exists</span>
<a name="l00068"></a>00068 STATE_GETORIG, <span class="comment">// if we create it</span>
<a name="l00069"></a>00069 STATE_CREATETHUMB <span class="comment">// thumbnail:/ slave</span>
<a name="l00070"></a>00070 } state;
<a name="l00071"></a>00071 <a class="codeRef" href="qptrlist.html">KFileItemList</a> initialItems;
<a name="l00072"></a>00072 <span class="keyword">const</span> <a class="codeRef" href="qstringlist.html">QStringList</a> *enabledPlugins;
<a name="l00073"></a>00073 <span class="comment">// Our todo list :)</span>
<a name="l00074"></a>00074 <a class="codeRef" href="qvaluelist.html">QValueList<PreviewItem></a> items;
<a name="l00075"></a>00075 <span class="comment">// The current item</span>
<a name="l00076"></a>00076 PreviewItem currentItem;
<a name="l00077"></a>00077 <span class="comment">// The modification time of that URL</span>
<a name="l00078"></a>00078 time_t tOrig;
<a name="l00079"></a>00079 <span class="comment">// Path to thumbnail cache for the current size</span>
<a name="l00080"></a>00080 <a class="codeRef" href="qstring.html">QString</a> thumbPath;
<a name="l00081"></a>00081 <span class="comment">// Original URL of current item in TMS format</span>
<a name="l00082"></a>00082 <span class="comment">// (file:///path/to/file instead of file:/path/to/file)</span>
<a name="l00083"></a>00083 <a class="codeRef" href="qstring.html">QString</a> origName;
<a name="l00084"></a>00084 <span class="comment">// Thumbnail file name for current item</span>
<a name="l00085"></a>00085 <a class="codeRef" href="qstring.html">QString</a> thumbName;
<a name="l00086"></a>00086 <span class="comment">// Size of thumbnail</span>
<a name="l00087"></a>00087 <span class="keywordtype">int</span> width;
<a name="l00088"></a>00088 <span class="keywordtype">int</span> height;
<a name="l00089"></a>00089 <span class="comment">// Unscaled size of thumbnail (128 or 256 if cache is enabled)</span>
<a name="l00090"></a>00090 <span class="keywordtype">int</span> cacheWidth;
<a name="l00091"></a>00091 <span class="keywordtype">int</span> cacheHeight;
<a name="l00092"></a>00092 <span class="comment">// Whether the thumbnail should be scaled</span>
<a name="l00093"></a>00093 <span class="keywordtype">bool</span> bScale;
<a name="l00094"></a>00094 <span class="comment">// Whether we should save the thumbnail</span>
<a name="l00095"></a>00095 <span class="keywordtype">bool</span> bSave;
<a name="l00096"></a>00096 <span class="comment">// If the file to create a thumb for was a temp file, this is its name</span>
<a name="l00097"></a>00097 <a class="codeRef" href="qstring.html">QString</a> tempName;
<a name="l00098"></a>00098 <span class="comment">// Over that, it's too much</span>
<a name="l00099"></a>00099 <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> maximumSize;
<a name="l00100"></a>00100 <span class="comment">// the size for the icon overlay</span>
<a name="l00101"></a>00101 <span class="keywordtype">int</span> iconSize;
<a name="l00102"></a>00102 <span class="comment">// the transparency of the blended mimetype icon</span>
<a name="l00103"></a>00103 <span class="keywordtype">int</span> iconAlpha;
<a name="l00104"></a>00104 <span class="comment">// Shared memory segment Id. The segment is allocated to a size</span>
<a name="l00105"></a>00105 <span class="comment">// of extent x extent x 4 (32 bit image) on first need.</span>
<a name="l00106"></a>00106 <span class="keywordtype">int</span> shmid;
<a name="l00107"></a>00107 <span class="comment">// And the data area</span>
<a name="l00108"></a>00108 uchar *shmaddr;
<a name="l00109"></a>00109 <span class="comment">// Delete the KFileItems when done?</span>
<a name="l00110"></a>00110 <span class="keywordtype">bool</span> deleteItems;
<a name="l00111"></a>00111 <span class="keywordtype">bool</span> succeeded;
<a name="l00112"></a>00112 <span class="comment">// Root of thumbnail cache</span>
<a name="l00113"></a>00113 <a class="codeRef" href="qstring.html">QString</a> thumbRoot;
<a name="l00114"></a>00114 <span class="keywordtype">bool</span> ignoreMaximumSize;
<a name="l00115"></a>00115 <a class="codeRef" href="qtimer.html">QTimer</a> startPreviewTimer;
<a name="l00116"></a>00116 };
<a name="l00117"></a>00117
<a name="l00118"></a><a class="code" href="classKIO_1_1PreviewJob.html#a09dd7ea3165b117c6aecfd5e2540615e">00118</a> <a class="code" href="classKIO_1_1PreviewJob.html#a09dd7ea3165b117c6aecfd5e2540615e" title="Creates a new PreviewJob.">PreviewJob::PreviewJob</a>( <span class="keyword">const</span> <a class="codeRef" href="qptrlist.html">KFileItemList</a> &items, <span class="keywordtype">int</span> width, <span class="keywordtype">int</span> height,
<a name="l00119"></a>00119 <span class="keywordtype">int</span> iconSize, <span class="keywordtype">int</span> iconAlpha, <span class="keywordtype">bool</span> scale, <span class="keywordtype">bool</span> save,
<a name="l00120"></a>00120 <span class="keyword">const</span> <a class="codeRef" href="qstringlist.html">QStringList</a> *enabledPlugins, <span class="keywordtype">bool</span> deleteItems )
<a name="l00121"></a>00121 : KIO::<a class="code" href="classKIO_1_1Job.html" title="The base class for all jobs.">Job</a>( false <span class="comment">/* no GUI */</span> )
<a name="l00122"></a>00122 {
<a name="l00123"></a>00123 d = <span class="keyword">new</span> PreviewJobPrivate;
<a name="l00124"></a>00124 d->tOrig = 0;
<a name="l00125"></a>00125 d->shmid = -1;
<a name="l00126"></a>00126 d->shmaddr = 0;
<a name="l00127"></a>00127 d->initialItems = items;
<a name="l00128"></a>00128 d->enabledPlugins = enabledPlugins;
<a name="l00129"></a>00129 d->width = width;
<a name="l00130"></a>00130 d->height = height ? height : width;
<a name="l00131"></a>00131 d->cacheWidth = d->width;
<a name="l00132"></a>00132 d->cacheHeight = d->height;
<a name="l00133"></a>00133 d->iconSize = iconSize;
<a name="l00134"></a>00134 d->iconAlpha = iconAlpha;
<a name="l00135"></a>00135 d->deleteItems = deleteItems;
<a name="l00136"></a>00136 d->bScale = scale;
<a name="l00137"></a>00137 d->bSave = save && scale;
<a name="l00138"></a>00138 d->succeeded = <span class="keyword">false</span>;
<a name="l00139"></a>00139 d->currentItem.item = 0;
<a name="l00140"></a>00140 d->thumbRoot = <a class="codeRef" href="qdir.html#homeDirPath">QDir::homeDirPath</a>() + <span class="stringliteral">"/.thumbnails/"</span>;
<a name="l00141"></a>00141 d->ignoreMaximumSize = <span class="keyword">false</span>;
<a name="l00142"></a>00142
<a name="l00143"></a>00143 <span class="comment">// Return to event loop first, determineNextFile() might delete this;</span>
<a name="l00144"></a>00144 <a class="codeRef" href="qobject.html#connect">connect</a>(&d->startPreviewTimer, SIGNAL(timeout()), SLOT(startPreview()) );
<a name="l00145"></a>00145 d->startPreviewTimer.start(0, <span class="keyword">true</span>);
<a name="l00146"></a>00146 }
<a name="l00147"></a>00147
<a name="l00148"></a>00148 PreviewJob::~PreviewJob()
<a name="l00149"></a>00149 {
<a name="l00150"></a>00150 <span class="preprocessor">#ifdef Q_OS_UNIX</span>
<a name="l00151"></a>00151 <span class="preprocessor"></span> <span class="keywordflow">if</span> (d->shmaddr) {
<a name="l00152"></a>00152 shmdt((<span class="keywordtype">char</span>*)d->shmaddr);
<a name="l00153"></a>00153 shmctl(d->shmid, IPC_RMID, 0);
<a name="l00154"></a>00154 }
<a name="l00155"></a>00155 <span class="preprocessor">#endif</span>
<a name="l00156"></a>00156 <span class="preprocessor"></span> <span class="keyword">delete</span> d;
<a name="l00157"></a>00157 }
<a name="l00158"></a>00158
<a name="l00159"></a>00159 <span class="keywordtype">void</span> PreviewJob::startPreview()
<a name="l00160"></a>00160 {
<a name="l00161"></a>00161 <span class="comment">// Load the list of plugins to determine which mimetypes are supported</span>
<a name="l00162"></a>00162 <a class="codeRef" href="qvaluelist.html">KTrader::OfferList</a> plugins = <a class="code" href="classKTrader.html#a3fce6f1332504c3f4621b18cf8635ce0" title="This is a static pointer to a KTrader instance.">KTrader::self</a>()-><a class="code" href="classKTrader.html#af317c76b7cfb2a1e8ccc0df72676b2d5" title="The main function in the KTrader class.">query</a>(<span class="stringliteral">"ThumbCreator"</span>);
<a name="l00163"></a>00163 <a class="codeRef" href="qmap.html">QMap<QString, KService::Ptr></a> mimeMap;
<a name="l00164"></a>00164
<a name="l00165"></a>00165 <span class="keywordflow">for</span> (<a class="codeRef" href="qvaluelist.html#ConstIterator">KTrader::OfferList::ConstIterator</a> it = plugins.<a class="codeRef" href="qvaluelist.html#begin">begin</a>(); it != plugins.<a class="codeRef" href="qvaluelist.html#end">end</a>(); ++it)
<a name="l00166"></a>00166 <span class="keywordflow">if</span> (!d->enabledPlugins || d->enabledPlugins->contains((*it)->desktopEntryName()))
<a name="l00167"></a>00167 {
<a name="l00168"></a>00168 <a class="codeRef" href="qstringlist.html">QStringList</a> mimeTypes = (*it)->property(<span class="stringliteral">"MimeTypes"</span>).toStringList();
<a name="l00169"></a>00169 <span class="keywordflow">for</span> (QStringList::ConstIterator mt = mimeTypes.begin(); mt != mimeTypes.end(); ++mt)
<a name="l00170"></a>00170 mimeMap.<a class="codeRef" href="qmap.html#insert">insert</a>(*mt, *it);
<a name="l00171"></a>00171 }
<a name="l00172"></a>00172
<a name="l00173"></a>00173 <span class="comment">// Look for images and store the items in our todo list :)</span>
<a name="l00174"></a>00174 <span class="keywordtype">bool</span> bNeedCache = <span class="keyword">false</span>;
<a name="l00175"></a>00175 <span class="keywordflow">for</span> (<a class="codeRef" href="qptrlistiterator.html">KFileItemListIterator</a> it(d->initialItems); it.<a class="codeRef" href="qptrlistiterator.html#current">current</a>(); ++it )
<a name="l00176"></a>00176 {
<a name="l00177"></a>00177 PreviewItem item;
<a name="l00178"></a>00178 item.item = it.current();
<a name="l00179"></a>00179 <a class="codeRef" href="qmap.html">QMap<QString, KService::Ptr>::ConstIterator</a> plugin = mimeMap.<a class="codeRef" href="qmap.html#find">find</a>(it.current()->mimetype());
<a name="l00180"></a>00180 <span class="keywordflow">if</span> (plugin == mimeMap.<a class="codeRef" href="qmap.html#end">end</a>() && it.current()->mimetype() != <span class="stringliteral">"application/x-desktop"</span>)
<a name="l00181"></a>00181 {
<a name="l00182"></a>00182 <a class="codeRef" href="qstring.html">QString</a> mimeType = it.current()->mimetype();
<a name="l00183"></a>00183 plugin = mimeMap.<a class="codeRef" href="qmap.html#find">find</a>(mimeType.<a class="codeRef" href="qstring.html#replace">replace</a>(<a class="codeRef" href="qregexp.html">QRegExp</a>(<span class="stringliteral">"/.*"</span>), <span class="stringliteral">"/*"</span>));
<a name="l00184"></a>00184
<a name="l00185"></a>00185 <span class="keywordflow">if</span> (plugin == mimeMap.<a class="codeRef" href="qmap.html#end">end</a>())
<a name="l00186"></a>00186 {
<a name="l00187"></a>00187 <span class="comment">// check mime type inheritance</span>
<a name="l00188"></a>00188 KMimeType::Ptr mimeInfo = <a class="code" href="classKMimeType.html#a1fd115a75a84e762e31d8424eee683c0" title="Retrieve a pointer to the mime type _name or a pointer to the default mime type "application/octet-st...">KMimeType::mimeType</a>(it.current()->mimetype());
<a name="l00189"></a>00189 <a class="codeRef" href="qstring.html">QString</a> parentMimeType = mimeInfo->parentMimeType();
<a name="l00190"></a>00190 <span class="keywordflow">while</span> (!parentMimeType.isEmpty())
<a name="l00191"></a>00191 {
<a name="l00192"></a>00192 plugin = mimeMap.<a class="codeRef" href="qmap.html#find">find</a>(parentMimeType);
<a name="l00193"></a>00193 <span class="keywordflow">if</span> (plugin != mimeMap.<a class="codeRef" href="qmap.html#end">end</a>()) <span class="keywordflow">break</span>;
<a name="l00194"></a>00194
<a name="l00195"></a>00195 KMimeType::Ptr parentMimeInfo = <a class="code" href="classKMimeType.html#a1fd115a75a84e762e31d8424eee683c0" title="Retrieve a pointer to the mime type _name or a pointer to the default mime type "application/octet-st...">KMimeType::mimeType</a>(parentMimeType);
<a name="l00196"></a>00196 <span class="keywordflow">if</span> (!parentMimeInfo) <span class="keywordflow">break</span>;
<a name="l00197"></a>00197
<a name="l00198"></a>00198 parentMimeType = parentMimeInfo->parentMimeType();
<a name="l00199"></a>00199 }
<a name="l00200"></a>00200 }
<a name="l00201"></a>00201
<a name="l00202"></a>00202 <span class="keywordflow">if</span> (plugin == mimeMap.<a class="codeRef" href="qmap.html#end">end</a>())
<a name="l00203"></a>00203 {
<a name="l00204"></a>00204 <span class="comment">// check X-KDE-Text property</span>
<a name="l00205"></a>00205 KMimeType::Ptr mimeInfo = <a class="code" href="classKMimeType.html#a1fd115a75a84e762e31d8424eee683c0" title="Retrieve a pointer to the mime type _name or a pointer to the default mime type "application/octet-st...">KMimeType::mimeType</a>(it.current()->mimetype());
<a name="l00206"></a>00206 <a class="codeRef" href="qvariant.html">QVariant</a> textProperty = mimeInfo->property(<span class="stringliteral">"X-KDE-text"</span>);
<a name="l00207"></a>00207 <span class="keywordflow">if</span> (textProperty.isValid() && textProperty.type() == QVariant::Bool)
<a name="l00208"></a>00208 {
<a name="l00209"></a>00209 <span class="keywordflow">if</span> (textProperty.toBool())
<a name="l00210"></a>00210 {
<a name="l00211"></a>00211 plugin = mimeMap.<a class="codeRef" href="qmap.html#find">find</a>(<span class="stringliteral">"text/plain"</span>);
<a name="l00212"></a>00212 <span class="keywordflow">if</span> (plugin == mimeMap.<a class="codeRef" href="qmap.html#end">end</a>())
<a name="l00213"></a>00213 {
<a name="l00214"></a>00214 plugin = mimeMap.<a class="codeRef" href="qmap.html#find">find</a>( <span class="stringliteral">"text/*"</span> );
<a name="l00215"></a>00215 }
<a name="l00216"></a>00216 }
<a name="l00217"></a>00217 }
<a name="l00218"></a>00218 }
<a name="l00219"></a>00219 }
<a name="l00220"></a>00220
<a name="l00221"></a>00221 <span class="keywordflow">if</span> (plugin != mimeMap.<a class="codeRef" href="qmap.html#end">end</a>())
<a name="l00222"></a>00222 {
<a name="l00223"></a>00223 item.plugin = *plugin;
<a name="l00224"></a>00224 d->items.append(item);
<a name="l00225"></a>00225 <span class="keywordflow">if</span> (!bNeedCache && d->bSave &&
<a name="l00226"></a>00226 (it.current()->url().protocol() != <span class="stringliteral">"file"</span> ||
<a name="l00227"></a>00227 !it.current()->url().directory( <span class="keyword">false</span> ).startsWith(d->thumbRoot)) &&
<a name="l00228"></a>00228 (*plugin)->property(<span class="stringliteral">"CacheThumbnail"</span>).toBool())
<a name="l00229"></a>00229 bNeedCache = <span class="keyword">true</span>;
<a name="l00230"></a>00230 }
<a name="l00231"></a>00231 <span class="keywordflow">else</span>
<a name="l00232"></a>00232 {
<a name="l00233"></a>00233 emitFailed(it.current());
<a name="l00234"></a>00234 <span class="keywordflow">if</span> (d->deleteItems)
<a name="l00235"></a>00235 <span class="keyword">delete</span> it.current();
<a name="l00236"></a>00236 }
<a name="l00237"></a>00237 }
<a name="l00238"></a>00238
<a name="l00239"></a>00239 <span class="comment">// Read configuration value for the maximum allowed size</span>
<a name="l00240"></a>00240 KConfig * config = KGlobal::config();
<a name="l00241"></a>00241 KConfigGroupSaver cgs( config, <span class="stringliteral">"PreviewSettings"</span> );
<a name="l00242"></a>00242 d->maximumSize = config->readNumEntry( <span class="stringliteral">"MaximumSize"</span>, 1024*1024 <span class="comment">/* 1MB */</span> );
<a name="l00243"></a>00243
<a name="l00244"></a>00244 <span class="keywordflow">if</span> (bNeedCache)
<a name="l00245"></a>00245 {
<a name="l00246"></a>00246 <span class="keywordflow">if</span> (d->width <= 128 && d->height <= 128) d->cacheWidth = d->cacheHeight = 128;
<a name="l00247"></a>00247 <span class="keywordflow">else</span> d->cacheWidth = d->cacheHeight = 256;
<a name="l00248"></a>00248 d->thumbPath = d->thumbRoot + (d->cacheWidth == 128 ? <span class="stringliteral">"normal/"</span> : <span class="stringliteral">"large/"</span>);
<a name="l00249"></a>00249 KStandardDirs::makeDir(d->thumbPath, 0700);
<a name="l00250"></a>00250 }
<a name="l00251"></a>00251 <span class="keywordflow">else</span>
<a name="l00252"></a>00252 d->bSave = <span class="keyword">false</span>;
<a name="l00253"></a>00253 determineNextFile();
<a name="l00254"></a>00254 }
<a name="l00255"></a>00255
<a name="l00256"></a><a class="code" href="classKIO_1_1PreviewJob.html#a8d55a3cf62701a16130924581bcd2003">00256</a> <span class="keywordtype">void</span> <a class="code" href="classKIO_1_1PreviewJob.html#a8d55a3cf62701a16130924581bcd2003" title="Removes an item from preview processing.">PreviewJob::removeItem</a>( <span class="keyword">const</span> <a class="code" href="classKFileItem.html" title="A KFileItem is a generic class to handle a file, local or remote.">KFileItem</a> *item )
<a name="l00257"></a>00257 {
<a name="l00258"></a>00258 <span class="keywordflow">for</span> (<a class="codeRef" href="qvaluelist.html">QValueList<PreviewItem>::Iterator</a> it = d->items.begin(); it != d->items.end(); ++it)
<a name="l00259"></a>00259 <span class="keywordflow">if</span> ((*it).item == item)
<a name="l00260"></a>00260 {
<a name="l00261"></a>00261 d->items.remove(it);
<a name="l00262"></a>00262 <span class="keywordflow">break</span>;
<a name="l00263"></a>00263 }
<a name="l00264"></a>00264
<a name="l00265"></a>00265 <span class="keywordflow">if</span> (d->currentItem.item == item)
<a name="l00266"></a>00266 {
<a name="l00267"></a>00267 subjobs.<a class="codeRef" href="qptrlist.html#first">first</a>()->kill();
<a name="l00268"></a>00268 subjobs.<a class="codeRef" href="qptrlist.html#removeFirst">removeFirst</a>();
<a name="l00269"></a>00269 determineNextFile();
<a name="l00270"></a>00270 }
<a name="l00271"></a>00271 }
<a name="l00272"></a>00272
<a name="l00273"></a><a class="code" href="classKIO_1_1PreviewJob.html#ac6f07a315873c70b5e8002e5aa79ccce">00273</a> <span class="keywordtype">void</span> <a class="code" href="classKIO_1_1PreviewJob.html#ac6f07a315873c70b5e8002e5aa79ccce" title="If ignoreSize is true, then the preview is always generated regardless of the settings.">PreviewJob::setIgnoreMaximumSize</a>(<span class="keywordtype">bool</span> ignoreSize)
<a name="l00274"></a>00274 {
<a name="l00275"></a>00275 d->ignoreMaximumSize = ignoreSize;
<a name="l00276"></a>00276 }
<a name="l00277"></a>00277
<a name="l00278"></a>00278 <span class="keywordtype">void</span> PreviewJob::determineNextFile()
<a name="l00279"></a>00279 {
<a name="l00280"></a>00280 <span class="keywordflow">if</span> (d->currentItem.item)
<a name="l00281"></a>00281 {
<a name="l00282"></a>00282 <span class="keywordflow">if</span> (!d->succeeded)
<a name="l00283"></a>00283 emitFailed();
<a name="l00284"></a>00284 <span class="keywordflow">if</span> (d->deleteItems) {
<a name="l00285"></a>00285 <span class="keyword">delete</span> d->currentItem.item;
<a name="l00286"></a>00286 d->currentItem.item = 0L;
<a name="l00287"></a>00287 }
<a name="l00288"></a>00288 }
<a name="l00289"></a>00289 <span class="comment">// No more items ?</span>
<a name="l00290"></a>00290 <span class="keywordflow">if</span> ( d->items.isEmpty() )
<a name="l00291"></a>00291 {
<a name="l00292"></a>00292 <a class="code" href="classKIO_1_1Job.html#a2e0d3c5a52308ac85d197194b0c901b6" title="Utility function to emit the result signal, and suicide this job.">emitResult</a>();
<a name="l00293"></a>00293 <span class="keywordflow">return</span>;
<a name="l00294"></a>00294 }
<a name="l00295"></a>00295 <span class="keywordflow">else</span>
<a name="l00296"></a>00296 {
<a name="l00297"></a>00297 <span class="comment">// First, stat the orig file</span>
<a name="l00298"></a>00298 d->state = PreviewJobPrivate::STATE_STATORIG;
<a name="l00299"></a>00299 d->currentItem = d->items.first();
<a name="l00300"></a>00300 d->succeeded = <span class="keyword">false</span>;
<a name="l00301"></a>00301 d->items.remove(d->items.begin());
<a name="l00302"></a>00302 <a class="code" href="classKIO_1_1Job.html" title="The base class for all jobs.">KIO::Job</a> *job = <a class="code" href="namespaceKIO.html#a4f24010fae6634055f8111c07e4fa068" title="Find all details for one file or directory.">KIO::stat</a>( d->currentItem.item->url(), false );
<a name="l00303"></a>00303 job-><a class="code" href="classKIO_1_1Job.html#af509b3764a6b915df1273424e40b80d2" title="Add key/value pair to the meta data that is sent to the slave.">addMetaData</a>( <span class="stringliteral">"no-auth-prompt"</span>, <span class="stringliteral">"true"</span> );
<a name="l00304"></a>00304 <a class="code" href="classKIO_1_1Job.html#a37958be9e5eb1754e395902c2e21e1ca" title="Add a job that has to be finished before a result is emitted.">addSubjob</a>(job);
<a name="l00305"></a>00305 }
<a name="l00306"></a>00306 }
<a name="l00307"></a>00307
<a name="l00308"></a><a class="code" href="classKIO_1_1PreviewJob.html#a6fcc7a864b2809a95fe24a617c694b33">00308</a> <span class="keywordtype">void</span> <a class="code" href="classKIO_1_1PreviewJob.html#a6fcc7a864b2809a95fe24a617c694b33" title="Called whenever a subjob finishes.">PreviewJob::slotResult</a>( <a class="code" href="classKIO_1_1Job.html" title="The base class for all jobs.">KIO::Job</a> *job )
<a name="l00309"></a>00309 {
<a name="l00310"></a>00310 subjobs.<a class="codeRef" href="qptrlist.html#remove">remove</a>( job );
<a name="l00311"></a>00311 Q_ASSERT ( subjobs.<a class="codeRef" href="qptrlist.html#isEmpty">isEmpty</a>() ); <span class="comment">// We should have only one job at a time ...</span>
<a name="l00312"></a>00312 <span class="keywordflow">switch</span> ( d->state )
<a name="l00313"></a>00313 {
<a name="l00314"></a>00314 <span class="keywordflow">case</span> PreviewJobPrivate::STATE_STATORIG:
<a name="l00315"></a>00315 {
<a name="l00316"></a>00316 <span class="keywordflow">if</span> (job-><a class="code" href="classKIO_1_1Job.html#a45ef3327c7c11ead02d06501018bf441" title="Returns the error code, if there has been an error.">error</a>()) <span class="comment">// that's no good news...</span>
<a name="l00317"></a>00317 {
<a name="l00318"></a>00318 <span class="comment">// Drop this one and move on to the next one</span>
<a name="l00319"></a>00319 determineNextFile();
<a name="l00320"></a>00320 <span class="keywordflow">return</span>;
<a name="l00321"></a>00321 }
<a name="l00322"></a>00322 <a class="codeRef" href="qvaluelist.html">KIO::UDSEntry</a> entry = ((<a class="code" href="classKIO_1_1StatJob.html" title="A KIO job that retrieves information about a file or directory.">KIO::StatJob</a>*)job)->statResult();
<a name="l00323"></a>00323 <a class="codeRef" href="qvaluelist.html#ConstIterator">KIO::UDSEntry::ConstIterator</a> it = entry.<a class="codeRef" href="qvaluelist.html#begin">begin</a>();
<a name="l00324"></a>00324 d->tOrig = 0;
<a name="l00325"></a>00325 <span class="keywordtype">int</span> found = 0;
<a name="l00326"></a>00326 <span class="keywordflow">for</span>( ; it != entry.<a class="codeRef" href="qvaluelist.html#end">end</a>() && found < 2; it++ )
<a name="l00327"></a>00327 {
<a name="l00328"></a>00328 <span class="keywordflow">if</span> ( (*it).m_uds == <a class="code" href="namespaceKIO.html#ab329df4f691911c03bce444a035fd31fa2870258f5a68f7dd13a18703c7144d10" title="The last time the file was modified.">KIO::UDS_MODIFICATION_TIME</a> )
<a name="l00329"></a>00329 {
<a name="l00330"></a>00330 d->tOrig = (time_t)((*it).m_long);
<a name="l00331"></a>00331 found++;
<a name="l00332"></a>00332 }
<a name="l00333"></a>00333 <span class="keywordflow">else</span> <span class="keywordflow">if</span> ( (*it).m_uds == <a class="code" href="namespaceKIO.html#ab329df4f691911c03bce444a035fd31fa5a03d6c96cd6c9b7aa5d6fbc5c989deb" title="Size of the file.">KIO::UDS_SIZE</a> )
<a name="l00334"></a>00334 {
<a name="l00335"></a>00335 <span class="keywordflow">if</span> ( <a class="code" href="namespaceKIO.html#a90b418366ba9052c97d4dca845026f43" title="64-bit file size">filesize_t</a>((*it).m_long) > d->maximumSize &&
<a name="l00336"></a>00336 !d->ignoreMaximumSize &&
<a name="l00337"></a>00337 !d->currentItem.plugin->property(<span class="stringliteral">"IgnoreMaximumSize"</span>).toBool() )
<a name="l00338"></a>00338 {
<a name="l00339"></a>00339 determineNextFile();
<a name="l00340"></a>00340 <span class="keywordflow">return</span>;
<a name="l00341"></a>00341 }
<a name="l00342"></a>00342 found++;
<a name="l00343"></a>00343 }
<a name="l00344"></a>00344 }
<a name="l00345"></a>00345
<a name="l00346"></a>00346 <span class="keywordflow">if</span> ( !d->currentItem.plugin->property( <span class="stringliteral">"CacheThumbnail"</span> ).toBool() )
<a name="l00347"></a>00347 {
<a name="l00348"></a>00348 <span class="comment">// This preview will not be cached, no need to look for a saved thumbnail</span>
<a name="l00349"></a>00349 <span class="comment">// Just create it, and be done</span>
<a name="l00350"></a>00350 getOrCreateThumbnail();
<a name="l00351"></a>00351 <span class="keywordflow">return</span>;
<a name="l00352"></a>00352 }
<a name="l00353"></a>00353
<a name="l00354"></a>00354 <span class="keywordflow">if</span> ( statResultThumbnail() )
<a name="l00355"></a>00355 <span class="keywordflow">return</span>;
<a name="l00356"></a>00356
<a name="l00357"></a>00357 getOrCreateThumbnail();
<a name="l00358"></a>00358 <span class="keywordflow">return</span>;
<a name="l00359"></a>00359 }
<a name="l00360"></a>00360 <span class="keywordflow">case</span> PreviewJobPrivate::STATE_GETORIG:
<a name="l00361"></a>00361 {
<a name="l00362"></a>00362 <span class="keywordflow">if</span> (job-><a class="code" href="classKIO_1_1Job.html#a45ef3327c7c11ead02d06501018bf441" title="Returns the error code, if there has been an error.">error</a>())
<a name="l00363"></a>00363 {
<a name="l00364"></a>00364 determineNextFile();
<a name="l00365"></a>00365 <span class="keywordflow">return</span>;
<a name="l00366"></a>00366 }
<a name="l00367"></a>00367
<a name="l00368"></a>00368 createThumbnail( static_cast<KIO::FileCopyJob*>(job)->destURL().path() );
<a name="l00369"></a>00369 <span class="keywordflow">return</span>;
<a name="l00370"></a>00370 }
<a name="l00371"></a>00371 <span class="keywordflow">case</span> PreviewJobPrivate::STATE_CREATETHUMB:
<a name="l00372"></a>00372 {
<a name="l00373"></a>00373 <span class="keywordflow">if</span> (!d->tempName.isEmpty())
<a name="l00374"></a>00374 {
<a name="l00375"></a>00375 <a class="codeRef" href="qfile.html#remove">QFile::remove</a>(d->tempName);
<a name="l00376"></a>00376 d->tempName = QString::null;
<a name="l00377"></a>00377 }
<a name="l00378"></a>00378 determineNextFile();
<a name="l00379"></a>00379 <span class="keywordflow">return</span>;
<a name="l00380"></a>00380 }
<a name="l00381"></a>00381 }
<a name="l00382"></a>00382 }
<a name="l00383"></a>00383
<a name="l00384"></a>00384 <span class="keywordtype">bool</span> PreviewJob::statResultThumbnail()
<a name="l00385"></a>00385 {
<a name="l00386"></a>00386 <span class="keywordflow">if</span> ( d->thumbPath.isEmpty() )
<a name="l00387"></a>00387 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00388"></a>00388
<a name="l00389"></a>00389 KURL url = d->currentItem.item->url();
<a name="l00390"></a>00390 <span class="comment">// Don't include the password if any</span>
<a name="l00391"></a>00391 url.setPass(QString::null);
<a name="l00392"></a>00392 <span class="comment">// The TMS defines local files as file:///path/to/file instead of KDE's</span>
<a name="l00393"></a>00393 <span class="comment">// way (file:/path/to/file)</span>
<a name="l00394"></a>00394 <span class="preprocessor">#ifdef KURL_TRIPLE_SLASH_FILE_PROT</span>
<a name="l00395"></a>00395 <span class="preprocessor"></span> d->origName = url.url();
<a name="l00396"></a>00396 <span class="preprocessor">#else </span>
<a name="l00397"></a>00397 <span class="preprocessor"></span> <span class="keywordflow">if</span> (url.protocol() == <span class="stringliteral">"file"</span>) d->origName = <span class="stringliteral">"file://"</span> + url.path();
<a name="l00398"></a>00398 <span class="keywordflow">else</span> d->origName = url.url();
<a name="l00399"></a>00399 <span class="preprocessor">#endif </span>
<a name="l00400"></a>00400 <span class="preprocessor"></span>
<a name="l00401"></a>00401 KMD5 md5( <a class="codeRef" href="qfile.html#encodeName">QFile::encodeName</a>( d->origName ) );
<a name="l00402"></a>00402 d->thumbName = <a class="codeRef" href="qfile.html#encodeName">QFile::encodeName</a>( md5.hexDigest() ) + <span class="stringliteral">".png"</span>;
<a name="l00403"></a>00403
<a name="l00404"></a>00404 <a class="codeRef" href="qimage.html">QImage</a> thumb;
<a name="l00405"></a>00405 <span class="keywordflow">if</span> ( !thumb.load( d->thumbPath + d->thumbName ) ) <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00406"></a>00406
<a name="l00407"></a>00407 <span class="keywordflow">if</span> ( thumb.text( <span class="stringliteral">"Thumb::URI"</span>, 0 ) != d->origName ||
<a name="l00408"></a>00408 thumb.text( <span class="stringliteral">"Thumb::MTime"</span>, 0 ).toInt() != d->tOrig ) <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00409"></a>00409
<a name="l00410"></a>00410 <span class="comment">// Found it, use it</span>
<a name="l00411"></a>00411 emitPreview( thumb );
<a name="l00412"></a>00412 d->succeeded = <span class="keyword">true</span>;
<a name="l00413"></a>00413 determineNextFile();
<a name="l00414"></a>00414 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00415"></a>00415 }
<a name="l00416"></a>00416
<a name="l00417"></a>00417
<a name="l00418"></a>00418 <span class="keywordtype">void</span> PreviewJob::getOrCreateThumbnail()
<a name="l00419"></a>00419 {
<a name="l00420"></a>00420 <span class="comment">// We still need to load the orig file ! (This is getting tedious) :)</span>
<a name="l00421"></a>00421 <span class="keyword">const</span> <a class="code" href="classKFileItem.html" title="A KFileItem is a generic class to handle a file, local or remote.">KFileItem</a>* item = d->currentItem.item;
<a name="l00422"></a>00422 <span class="keyword">const</span> <a class="codeRef" href="qstring.html">QString</a> localPath = item-><a class="code" href="classKFileItem.html#aa0ea703232934902e9132073da38037e" title="Returns the local path if isLocalFile() == true or the KIO item has a UDS_LOCAL_PATH atom...">localPath</a>();
<a name="l00423"></a>00423 <span class="keywordflow">if</span> ( !localPath.<a class="codeRef" href="qstring.html#isEmpty">isEmpty</a>() )
<a name="l00424"></a>00424 createThumbnail( localPath );
<a name="l00425"></a>00425 <span class="keywordflow">else</span>
<a name="l00426"></a>00426 {
<a name="l00427"></a>00427 d->state = PreviewJobPrivate::STATE_GETORIG;
<a name="l00428"></a>00428 KTempFile localFile;
<a name="l00429"></a>00429 KURL localURL;
<a name="l00430"></a>00430 localURL.setPath( d->tempName = localFile.name() );
<a name="l00431"></a>00431 <span class="keyword">const</span> KURL currentURL = item-><a class="code" href="classKFileItem.html#a04813dcf686795b8854034b0165ccdc0" title="Returns the url of the file.">url</a>();
<a name="l00432"></a>00432 <a class="code" href="classKIO_1_1Job.html" title="The base class for all jobs.">KIO::Job</a> * job = <a class="code" href="namespaceKIO.html#ab81bd1d420d0f0c6b87c875d8ac0016e" title="Copy a single file.">KIO::file_copy</a>( currentURL, localURL, -1, <span class="keyword">true</span>,
<a name="l00433"></a>00433 <span class="keyword">false</span>, <span class="keyword">false</span> <span class="comment">/* No GUI */</span> );
<a name="l00434"></a>00434 job-><a class="code" href="classKIO_1_1Job.html#af509b3764a6b915df1273424e40b80d2" title="Add key/value pair to the meta data that is sent to the slave.">addMetaData</a>(<span class="stringliteral">"thumbnail"</span>,<span class="stringliteral">"1"</span>);
<a name="l00435"></a>00435 <a class="code" href="classKIO_1_1Job.html#a37958be9e5eb1754e395902c2e21e1ca" title="Add a job that has to be finished before a result is emitted.">addSubjob</a>(job);
<a name="l00436"></a>00436 }
<a name="l00437"></a>00437 }
<a name="l00438"></a>00438
<a name="l00439"></a>00439 <span class="comment">// KDE 4: Make it const QString &</span>
<a name="l00440"></a>00440 <span class="keywordtype">void</span> PreviewJob::createThumbnail( <a class="codeRef" href="qstring.html">QString</a> pixPath )
<a name="l00441"></a>00441 {
<a name="l00442"></a>00442 d->state = PreviewJobPrivate::STATE_CREATETHUMB;
<a name="l00443"></a>00443 KURL thumbURL;
<a name="l00444"></a>00444 thumbURL.setProtocol(<span class="stringliteral">"thumbnail"</span>);
<a name="l00445"></a>00445 thumbURL.setPath(pixPath);
<a name="l00446"></a>00446 <a class="code" href="classKIO_1_1TransferJob.html" title="The transfer job pumps data into and/or out of a Slave.">KIO::TransferJob</a> *job = <a class="code" href="namespaceKIO.html#a0903950177f6943f35246a7ad577ac1c" title="Get (a.k.a.">KIO::get</a>(thumbURL, <span class="keyword">false</span>, <span class="keyword">false</span>);
<a name="l00447"></a>00447 <a class="code" href="classKIO_1_1Job.html#a37958be9e5eb1754e395902c2e21e1ca" title="Add a job that has to be finished before a result is emitted.">addSubjob</a>(job);
<a name="l00448"></a>00448 <a class="codeRef" href="qobject.html#connect">connect</a>(job, SIGNAL(data(<a class="code" href="classKIO_1_1Job.html" title="The base class for all jobs.">KIO::Job</a> *, <span class="keyword">const</span> <a class="codeRef" href="qbytearray.html">QByteArray</a> &)), SLOT(slotThumbData(<a class="code" href="classKIO_1_1Job.html" title="The base class for all jobs.">KIO::Job</a> *, <span class="keyword">const</span> <a class="codeRef" href="qbytearray.html">QByteArray</a> &)));
<a name="l00449"></a>00449 <span class="keywordtype">bool</span> save = d->bSave && d->currentItem.plugin->property(<span class="stringliteral">"CacheThumbnail"</span>).toBool();
<a name="l00450"></a>00450 job-><a class="code" href="classKIO_1_1Job.html#af509b3764a6b915df1273424e40b80d2" title="Add key/value pair to the meta data that is sent to the slave.">addMetaData</a>(<span class="stringliteral">"mimeType"</span>, d->currentItem.item->mimetype());
<a name="l00451"></a>00451 job-><a class="code" href="classKIO_1_1Job.html#af509b3764a6b915df1273424e40b80d2" title="Add key/value pair to the meta data that is sent to the slave.">addMetaData</a>(<span class="stringliteral">"width"</span>, <a class="codeRef" href="qstring.html">QString</a>().setNum(save ? d->cacheWidth : d->width));
<a name="l00452"></a>00452 job-><a class="code" href="classKIO_1_1Job.html#af509b3764a6b915df1273424e40b80d2" title="Add key/value pair to the meta data that is sent to the slave.">addMetaData</a>(<span class="stringliteral">"height"</span>, <a class="codeRef" href="qstring.html">QString</a>().setNum(save ? d->cacheHeight : d->height));
<a name="l00453"></a>00453 job-><a class="code" href="classKIO_1_1Job.html#af509b3764a6b915df1273424e40b80d2" title="Add key/value pair to the meta data that is sent to the slave.">addMetaData</a>(<span class="stringliteral">"iconSize"</span>, <a class="codeRef" href="qstring.html">QString</a>().setNum(save ? 64 : d->iconSize));
<a name="l00454"></a>00454 job-><a class="code" href="classKIO_1_1Job.html#af509b3764a6b915df1273424e40b80d2" title="Add key/value pair to the meta data that is sent to the slave.">addMetaData</a>(<span class="stringliteral">"iconAlpha"</span>, <a class="codeRef" href="qstring.html">QString</a>().setNum(d->iconAlpha));
<a name="l00455"></a>00455 job-><a class="code" href="classKIO_1_1Job.html#af509b3764a6b915df1273424e40b80d2" title="Add key/value pair to the meta data that is sent to the slave.">addMetaData</a>(<span class="stringliteral">"plugin"</span>, d->currentItem.plugin->library());
<a name="l00456"></a>00456 <span class="preprocessor">#ifdef Q_OS_UNIX</span>
<a name="l00457"></a>00457 <span class="preprocessor"></span> <span class="keywordflow">if</span> (d->shmid == -1)
<a name="l00458"></a>00458 {
<a name="l00459"></a>00459 <span class="keywordflow">if</span> (d->shmaddr) {
<a name="l00460"></a>00460 shmdt((<span class="keywordtype">char</span>*)d->shmaddr);
<a name="l00461"></a>00461 shmctl(d->shmid, IPC_RMID, 0);
<a name="l00462"></a>00462 }
<a name="l00463"></a>00463 d->shmid = shmget(IPC_PRIVATE, d->cacheWidth * d->cacheHeight * 4, IPC_CREAT|0600);
<a name="l00464"></a>00464 <span class="keywordflow">if</span> (d->shmid != -1)
<a name="l00465"></a>00465 {
<a name="l00466"></a>00466 d->shmaddr = (uchar *)(shmat(d->shmid, 0, SHM_RDONLY));
<a name="l00467"></a>00467 <span class="keywordflow">if</span> (d->shmaddr == (uchar *)-1)
<a name="l00468"></a>00468 {
<a name="l00469"></a>00469 shmctl(d->shmid, IPC_RMID, 0);
<a name="l00470"></a>00470 d->shmaddr = 0;
<a name="l00471"></a>00471 d->shmid = -1;
<a name="l00472"></a>00472 }
<a name="l00473"></a>00473 }
<a name="l00474"></a>00474 <span class="keywordflow">else</span>
<a name="l00475"></a>00475 d->shmaddr = 0;
<a name="l00476"></a>00476 }
<a name="l00477"></a>00477 <span class="keywordflow">if</span> (d->shmid != -1)
<a name="l00478"></a>00478 job-><a class="code" href="classKIO_1_1Job.html#af509b3764a6b915df1273424e40b80d2" title="Add key/value pair to the meta data that is sent to the slave.">addMetaData</a>(<span class="stringliteral">"shmid"</span>, <a class="codeRef" href="qstring.html">QString</a>().setNum(d->shmid));
<a name="l00479"></a>00479 <span class="preprocessor">#endif</span>
<a name="l00480"></a>00480 <span class="preprocessor"></span>}
<a name="l00481"></a>00481
<a name="l00482"></a>00482 <span class="keywordtype">void</span> PreviewJob::slotThumbData(<a class="code" href="classKIO_1_1Job.html" title="The base class for all jobs.">KIO::Job</a> *, <span class="keyword">const</span> <a class="codeRef" href="qbytearray.html">QByteArray</a> &data)
<a name="l00483"></a>00483 {
<a name="l00484"></a>00484 <span class="keywordtype">bool</span> save = d->bSave &&
<a name="l00485"></a>00485 d->currentItem.plugin->property(<span class="stringliteral">"CacheThumbnail"</span>).toBool() &&
<a name="l00486"></a>00486 (d->currentItem.item->url().protocol() != <span class="stringliteral">"file"</span> ||
<a name="l00487"></a>00487 !d->currentItem.item->url().directory( <span class="keyword">false</span> ).startsWith(d->thumbRoot));
<a name="l00488"></a>00488 <a class="codeRef" href="qimage.html">QImage</a> thumb;
<a name="l00489"></a>00489 <span class="preprocessor">#ifdef Q_OS_UNIX</span>
<a name="l00490"></a>00490 <span class="preprocessor"></span> <span class="keywordflow">if</span> (d->shmaddr)
<a name="l00491"></a>00491 {
<a name="l00492"></a>00492 <a class="codeRef" href="qdatastream.html">QDataStream</a> str(data, IO_ReadOnly);
<a name="l00493"></a>00493 <span class="keywordtype">int</span> width, height, depth;
<a name="l00494"></a>00494 <span class="keywordtype">bool</span> alpha;
<a name="l00495"></a>00495 str >> width >> height >> depth >> alpha;
<a name="l00496"></a>00496 thumb = <a class="codeRef" href="qimage.html">QImage</a>(d->shmaddr, width, height, depth, 0, 0, QImage::IgnoreEndian);
<a name="l00497"></a>00497 thumb.<a class="codeRef" href="qimage.html#setAlphaBuffer">setAlphaBuffer</a>(alpha);
<a name="l00498"></a>00498 }
<a name="l00499"></a>00499 <span class="keywordflow">else</span>
<a name="l00500"></a>00500 <span class="preprocessor">#endif</span>
<a name="l00501"></a>00501 <span class="preprocessor"></span> thumb.<a class="codeRef" href="qimage.html#loadFromData">loadFromData</a>(data);
<a name="l00502"></a>00502
<a name="l00503"></a>00503 <span class="keywordflow">if</span> (save)
<a name="l00504"></a>00504 {
<a name="l00505"></a>00505 thumb.<a class="codeRef" href="qimage.html#setText">setText</a>(<span class="stringliteral">"Thumb::URI"</span>, 0, d->origName);
<a name="l00506"></a>00506 thumb.<a class="codeRef" href="qimage.html#setText">setText</a>(<span class="stringliteral">"Thumb::MTime"</span>, 0, <a class="codeRef" href="qstring.html#number">QString::number</a>(d->tOrig));
<a name="l00507"></a>00507 thumb.<a class="codeRef" href="qimage.html#setText">setText</a>(<span class="stringliteral">"Thumb::Size"</span>, 0, <a class="code" href="namespaceKIO.html#a61e1ebe49305dcd7418b4692d56079b0" title="Converts a size to a string representation Not unlike QString::number(...)">number</a>(d->currentItem.item->size()));
<a name="l00508"></a>00508 thumb.<a class="codeRef" href="qimage.html#setText">setText</a>(<span class="stringliteral">"Thumb::Mimetype"</span>, 0, d->currentItem.item->mimetype());
<a name="l00509"></a>00509 thumb.<a class="codeRef" href="qimage.html#setText">setText</a>(<span class="stringliteral">"Software"</span>, 0, <span class="stringliteral">"KDE Thumbnail Generator"</span>);
<a name="l00510"></a>00510 KTempFile temp(d->thumbPath + <span class="stringliteral">"kde-tmp-"</span>, <span class="stringliteral">".png"</span>);
<a name="l00511"></a>00511 <span class="keywordflow">if</span> (temp.status() == 0) <span class="comment">//Only try to write out the thumbnail if we </span>
<a name="l00512"></a>00512 { <span class="comment">//actually created the temp file.</span>
<a name="l00513"></a>00513 thumb.<a class="codeRef" href="qimage.html#save">save</a>(temp.name(), <span class="stringliteral">"PNG"</span>);
<a name="l00514"></a>00514 <a class="code" href="namespaceKIO.html#acc5273371b331428624108118ce56131" title="Rename a file or directory.">rename</a>(<a class="codeRef" href="qfile.html#encodeName">QFile::encodeName</a>(temp.name()), <a class="codeRef" href="qfile.html#encodeName">QFile::encodeName</a>(d->thumbPath + d->thumbName));
<a name="l00515"></a>00515 }
<a name="l00516"></a>00516 }
<a name="l00517"></a>00517 emitPreview( thumb );
<a name="l00518"></a>00518 d->succeeded = <span class="keyword">true</span>;
<a name="l00519"></a>00519 }
<a name="l00520"></a>00520
<a name="l00521"></a>00521 <span class="keywordtype">void</span> PreviewJob::emitPreview(<span class="keyword">const</span> <a class="codeRef" href="qimage.html">QImage</a> &thumb)
<a name="l00522"></a>00522 {
<a name="l00523"></a>00523 <a class="codeRef" href="qpixmap.html">QPixmap</a> pix;
<a name="l00524"></a>00524 <span class="keywordflow">if</span> (thumb.<a class="codeRef" href="qimage.html#width">width</a>() > d->width || thumb.<a class="codeRef" href="qimage.html#height">height</a>() > d->height)
<a name="l00525"></a>00525 {
<a name="l00526"></a>00526 <span class="keywordtype">double</span> imgRatio = (double)thumb.<a class="codeRef" href="qimage.html#height">height</a>() / (double)thumb.<a class="codeRef" href="qimage.html#width">width</a>();
<a name="l00527"></a>00527 <span class="keywordflow">if</span> (imgRatio > (<span class="keywordtype">double</span>)d->height / (<span class="keywordtype">double</span>)d->width)
<a name="l00528"></a>00528 pix.<a class="codeRef" href="qpixmap.html#convertFromImage">convertFromImage</a>(
<a name="l00529"></a>00529 thumb.<a class="codeRef" href="qimage.html#smoothScale">smoothScale</a>((<span class="keywordtype">int</span>)QMAX((<span class="keywordtype">double</span>)d->height / imgRatio, 1), d->height));
<a name="l00530"></a>00530 <span class="keywordflow">else</span> pix.<a class="codeRef" href="qpixmap.html#convertFromImage">convertFromImage</a>(
<a name="l00531"></a>00531 thumb.<a class="codeRef" href="qimage.html#smoothScale">smoothScale</a>(d->width, (<span class="keywordtype">int</span>)QMAX((<span class="keywordtype">double</span>)d->width * imgRatio, 1)));
<a name="l00532"></a>00532 }
<a name="l00533"></a>00533 <span class="keywordflow">else</span> pix.<a class="codeRef" href="qpixmap.html#convertFromImage">convertFromImage</a>(thumb);
<a name="l00534"></a>00534 emit <a class="code" href="classKIO_1_1PreviewJob.html#a95c4b78a53609318049f0649c5f8b233" title="Emitted when a thumbnail picture for item has been successfully retrieved.">gotPreview</a>(d->currentItem.item, pix);
<a name="l00535"></a>00535 }
<a name="l00536"></a>00536
<a name="l00537"></a>00537 <span class="keywordtype">void</span> PreviewJob::emitFailed(<span class="keyword">const</span> <a class="code" href="classKFileItem.html" title="A KFileItem is a generic class to handle a file, local or remote.">KFileItem</a> *item)
<a name="l00538"></a>00538 {
<a name="l00539"></a>00539 <span class="keywordflow">if</span> (!item)
<a name="l00540"></a>00540 item = d->currentItem.item;
<a name="l00541"></a>00541 emit <a class="code" href="classKIO_1_1PreviewJob.html#aaee6e021ce87d25fe2a725065df377c0" title="Emitted when a thumbnail for item could not be created, either because a ThumbCreator for its MIME ty...">failed</a>(item);
<a name="l00542"></a>00542 }
<a name="l00543"></a>00543
<a name="l00544"></a><a class="code" href="classKIO_1_1PreviewJob.html#a4e05de99bd4c4ead364d0d54acde8c70">00544</a> <a class="codeRef" href="qstringlist.html">QStringList</a> <a class="code" href="classKIO_1_1PreviewJob.html#a4e05de99bd4c4ead364d0d54acde8c70" title="Returns a list of all available preview plugins.">PreviewJob::availablePlugins</a>()
<a name="l00545"></a>00545 {
<a name="l00546"></a>00546 <a class="codeRef" href="qstringlist.html">QStringList</a> <a class="code" href="classKIO_1_1Job.html#ac7b363bb6cc3c6fabcc9bdbf3a7751f9" title="Emitted when the job is finished, in any case (completed, canceled, failed...).">result</a>;
<a name="l00547"></a>00547 <a class="codeRef" href="qvaluelist.html">KTrader::OfferList</a> plugins = <a class="code" href="classKTrader.html#a3fce6f1332504c3f4621b18cf8635ce0" title="This is a static pointer to a KTrader instance.">KTrader::self</a>()-><a class="code" href="classKTrader.html#af317c76b7cfb2a1e8ccc0df72676b2d5" title="The main function in the KTrader class.">query</a>(<span class="stringliteral">"ThumbCreator"</span>);
<a name="l00548"></a>00548 <span class="keywordflow">for</span> (<a class="codeRef" href="qvaluelist.html#ConstIterator">KTrader::OfferList::ConstIterator</a> it = plugins.<a class="codeRef" href="qvaluelist.html#begin">begin</a>(); it != plugins.<a class="codeRef" href="qvaluelist.html#end">end</a>(); ++it)
<a name="l00549"></a>00549 <span class="keywordflow">if</span> (!result.contains((*it)->desktopEntryName()))
<a name="l00550"></a>00550 result.append((*it)->desktopEntryName());
<a name="l00551"></a>00551 <span class="keywordflow">return</span> <a class="code" href="classKIO_1_1Job.html#ac7b363bb6cc3c6fabcc9bdbf3a7751f9" title="Emitted when the job is finished, in any case (completed, canceled, failed...).">result</a>;
<a name="l00552"></a>00552 }
<a name="l00553"></a>00553
<a name="l00554"></a><a class="code" href="classKIO_1_1PreviewJob.html#a46dfd96261400a0096b91d24582f6c0e">00554</a> <a class="codeRef" href="qstringlist.html">QStringList</a> <a class="code" href="classKIO_1_1PreviewJob.html#a46dfd96261400a0096b91d24582f6c0e" title="Returns a list of all supported MIME types.">PreviewJob::supportedMimeTypes</a>()
<a name="l00555"></a>00555 {
<a name="l00556"></a>00556 <a class="codeRef" href="qstringlist.html">QStringList</a> <a class="code" href="classKIO_1_1Job.html#ac7b363bb6cc3c6fabcc9bdbf3a7751f9" title="Emitted when the job is finished, in any case (completed, canceled, failed...).">result</a>;
<a name="l00557"></a>00557 <a class="codeRef" href="qvaluelist.html">KTrader::OfferList</a> plugins = <a class="code" href="classKTrader.html#a3fce6f1332504c3f4621b18cf8635ce0" title="This is a static pointer to a KTrader instance.">KTrader::self</a>()-><a class="code" href="classKTrader.html#af317c76b7cfb2a1e8ccc0df72676b2d5" title="The main function in the KTrader class.">query</a>(<span class="stringliteral">"ThumbCreator"</span>);
<a name="l00558"></a>00558 <span class="keywordflow">for</span> (<a class="codeRef" href="qvaluelist.html#ConstIterator">KTrader::OfferList::ConstIterator</a> it = plugins.<a class="codeRef" href="qvaluelist.html#begin">begin</a>(); it != plugins.<a class="codeRef" href="qvaluelist.html#end">end</a>(); ++it)
<a name="l00559"></a>00559 result += (*it)->property(<span class="stringliteral">"MimeTypes"</span>).toStringList();
<a name="l00560"></a>00560 <span class="keywordflow">return</span> <a class="code" href="classKIO_1_1Job.html#ac7b363bb6cc3c6fabcc9bdbf3a7751f9" title="Emitted when the job is finished, in any case (completed, canceled, failed...).">result</a>;
<a name="l00561"></a>00561 }
<a name="l00562"></a>00562
<a name="l00563"></a><a class="code" href="classKIO_1_1PreviewJob.html#a75ea1d0d47e9631c7e38754e27d46ce1">00563</a> <span class="keywordtype">void</span> <a class="code" href="classKIO_1_1PreviewJob.html#a75ea1d0d47e9631c7e38754e27d46ce1" title="Reimplemented for internal reasons.">PreviewJob::kill</a>( <span class="keywordtype">bool</span> quietly )
<a name="l00564"></a>00564 {
<a name="l00565"></a>00565 d->startPreviewTimer.stop();
<a name="l00566"></a>00566 <a class="code" href="classKIO_1_1PreviewJob.html#a75ea1d0d47e9631c7e38754e27d46ce1" title="Reimplemented for internal reasons.">Job::kill</a>( quietly );
<a name="l00567"></a>00567 }
<a name="l00568"></a>00568
<a name="l00569"></a><a class="code" href="namespaceKIO.html#a92d0337ac1d72e5537f9bc956c6feb2a">00569</a> <a class="code" href="classKIO_1_1PreviewJob.html" title="KIO Job to get a thumbnail picture.">PreviewJob</a> *<a class="code" href="namespaceKIO.html#a92d0337ac1d72e5537f9bc956c6feb2a" title="Creates a PreviewJob to generate or retrieve a preview image for the given URL.">KIO::filePreview</a>( <span class="keyword">const</span> <a class="codeRef" href="qptrlist.html">KFileItemList</a> &items, <span class="keywordtype">int</span> width, <span class="keywordtype">int</span> height,
<a name="l00570"></a>00570 <span class="keywordtype">int</span> iconSize, <span class="keywordtype">int</span> iconAlpha, <span class="keywordtype">bool</span> scale, <span class="keywordtype">bool</span> save,
<a name="l00571"></a>00571 <span class="keyword">const</span> <a class="codeRef" href="qstringlist.html">QStringList</a> *enabledPlugins )
<a name="l00572"></a>00572 {
<a name="l00573"></a>00573 <span class="keywordflow">return</span> <span class="keyword">new</span> <a class="code" href="classKIO_1_1PreviewJob.html" title="KIO Job to get a thumbnail picture.">PreviewJob</a>(items, width, height, iconSize, iconAlpha,
<a name="l00574"></a>00574 scale, save, enabledPlugins);
<a name="l00575"></a>00575 }
<a name="l00576"></a>00576
<a name="l00577"></a><a class="code" href="namespaceKIO.html#a0c505eeb4c3aeac652cf4fc92f3c7830">00577</a> <a class="code" href="classKIO_1_1PreviewJob.html" title="KIO Job to get a thumbnail picture.">PreviewJob</a> *<a class="code" href="namespaceKIO.html#a92d0337ac1d72e5537f9bc956c6feb2a" title="Creates a PreviewJob to generate or retrieve a preview image for the given URL.">KIO::filePreview</a>( <span class="keyword">const</span> KURL::List &items, <span class="keywordtype">int</span> width, <span class="keywordtype">int</span> height,
<a name="l00578"></a>00578 <span class="keywordtype">int</span> iconSize, <span class="keywordtype">int</span> iconAlpha, <span class="keywordtype">bool</span> scale, <span class="keywordtype">bool</span> save,
<a name="l00579"></a>00579 <span class="keyword">const</span> <a class="codeRef" href="qstringlist.html">QStringList</a> *enabledPlugins )
<a name="l00580"></a>00580 {
<a name="l00581"></a>00581 <a class="codeRef" href="qptrlist.html">KFileItemList</a> fileItems;
<a name="l00582"></a>00582 <span class="keywordflow">for</span> (KURL::List::ConstIterator it = items.begin(); it != items.end(); ++it)
<a name="l00583"></a>00583 fileItems.<a class="codeRef" href="qptrlist.html#append">append</a>(<span class="keyword">new</span> <a class="code" href="classKFileItem.html" title="A KFileItem is a generic class to handle a file, local or remote.">KFileItem</a>(KFileItem::Unknown, KFileItem::Unknown, *it, <span class="keyword">true</span>));
<a name="l00584"></a>00584 <span class="keywordflow">return</span> <span class="keyword">new</span> <a class="code" href="classKIO_1_1PreviewJob.html" title="KIO Job to get a thumbnail picture.">PreviewJob</a>(fileItems, width, height, iconSize, iconAlpha,
<a name="l00585"></a>00585 scale, save, enabledPlugins, <span class="keyword">true</span>);
<a name="l00586"></a>00586 }
<a name="l00587"></a>00587
<a name="l00588"></a>00588 <span class="keywordtype">void</span> PreviewJob::virtual_hook( <span class="keywordtype">int</span> <span class="keywordtype">id</span>, <span class="keywordtype">void</span>* data )
<a name="l00589"></a>00589 { KIO::Job::virtual_hook( <span class="keywordtype">id</span>, data ); }
<a name="l00590"></a>00590
</pre></div></div>
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