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<h2><a name="content"></a>korganizer</h2>
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<h1>history.cpp</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span>
<a name="l00002"></a>00002 <span class="comment"> This file is part of KOrganizer.</span>
<a name="l00003"></a>00003 <span class="comment"></span>
<a name="l00004"></a>00004 <span class="comment"> Copyright (c) 2003 Cornelius Schumacher <schumacher@kde.org></span>
<a name="l00005"></a>00005 <span class="comment"> Copyright (C) 2003-2004 Reinhold Kainhofer <reinhold@kainhofer.com></span>
<a name="l00006"></a>00006 <span class="comment"></span>
<a name="l00007"></a>00007 <span class="comment"> This program is free software; you can redistribute it and/or modify</span>
<a name="l00008"></a>00008 <span class="comment"> it under the terms of the GNU General Public License as published by</span>
<a name="l00009"></a>00009 <span class="comment"> the Free Software Foundation; either version 2 of the License, or</span>
<a name="l00010"></a>00010 <span class="comment"> (at your option) any later version.</span>
<a name="l00011"></a>00011 <span class="comment"></span>
<a name="l00012"></a>00012 <span class="comment"> This program is distributed in the hope that it will be useful,</span>
<a name="l00013"></a>00013 <span class="comment"> but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<a name="l00014"></a>00014 <span class="comment"> MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span>
<a name="l00015"></a>00015 <span class="comment"> GNU General Public License for more details.</span>
<a name="l00016"></a>00016 <span class="comment"></span>
<a name="l00017"></a>00017 <span class="comment"> You should have received a copy of the GNU General Public License</span>
<a name="l00018"></a>00018 <span class="comment"> along with this program; if not, write to the Free Software</span>
<a name="l00019"></a>00019 <span class="comment"> Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.</span>
<a name="l00020"></a>00020 <span class="comment"></span>
<a name="l00021"></a>00021 <span class="comment"> As a special exception, permission is given to link this program</span>
<a name="l00022"></a>00022 <span class="comment"> with any edition of Qt, and distribute the resulting executable,</span>
<a name="l00023"></a>00023 <span class="comment"> without including the source code for Qt in the source distribution.</span>
<a name="l00024"></a>00024 <span class="comment">*/</span>
<a name="l00025"></a>00025
<a name="l00026"></a>00026 <span class="preprocessor">#include "history.h"</span>
<a name="l00027"></a>00027
<a name="l00028"></a>00028 <span class="preprocessor">#include <<a class="codeRef" doxygen="libkcal.tag:../../libkcal/html/" href="../../libkcal/html/calendar_8h.html">libkcal/calendar.h</a>></span>
<a name="l00029"></a>00029 <span class="preprocessor">#include <libkcal/incidence.h></span>
<a name="l00030"></a>00030
<a name="l00031"></a>00031 <span class="preprocessor">#include <klocale.h></span>
<a name="l00032"></a>00032 <span class="preprocessor">#include <kdebug.h></span>
<a name="l00033"></a>00033
<a name="l00034"></a>00034 <span class="keyword">using namespace </span>KCal;
<a name="l00035"></a>00035 <span class="keyword">using namespace </span>KOrg;
<a name="l00036"></a>00036
<a name="l00037"></a>00037 History::History( <a class="codeRef" doxygen="libkcal.tag:../../libkcal/html/" href="../../libkcal/html/classKCal_1_1Calendar.html">KCal::Calendar</a> *calendar )
<a name="l00038"></a>00038 : mCalendar( calendar ), mCurrentMultiEntry( 0 ),
<a name="l00039"></a>00039 mUndoEntry( mEntries ), mRedoEntry( mEntries )
<a name="l00040"></a>00040 {
<a name="l00041"></a>00041 mEntries.setAutoDelete( <span class="keyword">true</span> );
<a name="l00042"></a>00042 }
<a name="l00043"></a>00043
<a name="l00044"></a>00044 <span class="keywordtype">void</span> History::undo()
<a name="l00045"></a>00045 {
<a name="l00046"></a>00046 <span class="keywordflow">if</span> ( mCurrentMultiEntry ) mCurrentMultiEntry = 0;
<a name="l00047"></a>00047 Entry *entry = mUndoEntry.current();
<a name="l00048"></a>00048 <span class="keywordflow">if</span> ( !entry ) <span class="keywordflow">return</span>;
<a name="l00049"></a>00049
<a name="l00050"></a>00050 entry->undo();
<a name="l00051"></a>00051 emit undone();
<a name="l00052"></a>00052
<a name="l00053"></a>00053 emit redoAvailable( entry->text() );
<a name="l00054"></a>00054
<a name="l00055"></a>00055 mRedoEntry = mUndoEntry;
<a name="l00056"></a>00056 --mUndoEntry;
<a name="l00057"></a>00057
<a name="l00058"></a>00058 entry = mUndoEntry.current();
<a name="l00059"></a>00059 <span class="keywordflow">if</span> ( entry ) emit undoAvailable( entry->text() );
<a name="l00060"></a>00060 <span class="keywordflow">else</span> emit undoAvailable( QString::null );
<a name="l00061"></a>00061 }
<a name="l00062"></a>00062
<a name="l00063"></a>00063 <span class="keywordtype">void</span> History::redo()
<a name="l00064"></a>00064 {
<a name="l00065"></a>00065 <span class="keywordflow">if</span> ( mCurrentMultiEntry ) mCurrentMultiEntry = 0;
<a name="l00066"></a>00066 Entry *entry = mRedoEntry.current();
<a name="l00067"></a>00067 <span class="keywordflow">if</span> ( !entry ) <span class="keywordflow">return</span>;
<a name="l00068"></a>00068
<a name="l00069"></a>00069 emit undoAvailable( entry->text() );
<a name="l00070"></a>00070
<a name="l00071"></a>00071 entry->redo();
<a name="l00072"></a>00072 emit redone();
<a name="l00073"></a>00073
<a name="l00074"></a>00074 mUndoEntry = mRedoEntry;
<a name="l00075"></a>00075 ++mRedoEntry;
<a name="l00076"></a>00076
<a name="l00077"></a>00077 entry = mRedoEntry.current();
<a name="l00078"></a>00078 <span class="keywordflow">if</span> ( entry ) emit redoAvailable( entry->text() );
<a name="l00079"></a>00079 <span class="keywordflow">else</span> emit redoAvailable( QString::null );
<a name="l00080"></a>00080 }
<a name="l00081"></a>00081
<a name="l00082"></a>00082 <span class="keywordtype">void</span> History::truncate()
<a name="l00083"></a>00083 {
<a name="l00084"></a>00084 <span class="keywordflow">while</span> ( mUndoEntry.current() != mEntries.last() ) {
<a name="l00085"></a>00085 mEntries.removeLast();
<a name="l00086"></a>00086 }
<a name="l00087"></a>00087 mRedoEntry = QPtrList<Entry>( mEntries );
<a name="l00088"></a>00088 emit redoAvailable( QString::null );
<a name="l00089"></a>00089 }
<a name="l00090"></a>00090
<a name="l00091"></a>00091 <span class="keywordtype">void</span> History::recordDelete( <a class="codeRef" doxygen="libkcal.tag:../../libkcal/html/" href="../../libkcal/html/classKCal_1_1Incidence.html">Incidence</a> *incidence )
<a name="l00092"></a>00092 {
<a name="l00093"></a>00093 Entry *entry = <span class="keyword">new</span> EntryDelete( mCalendar, incidence );
<a name="l00094"></a>00094 <span class="keywordflow">if</span> (mCurrentMultiEntry) {
<a name="l00095"></a>00095 mCurrentMultiEntry->appendEntry( entry );
<a name="l00096"></a>00096 } <span class="keywordflow">else</span> {
<a name="l00097"></a>00097 truncate();
<a name="l00098"></a>00098 mEntries.append( entry );
<a name="l00099"></a>00099 mUndoEntry.toLast();
<a name="l00100"></a>00100 mRedoEntry = QPtrList<Entry>( mEntries );
<a name="l00101"></a>00101 emit undoAvailable( entry->text() );
<a name="l00102"></a>00102 }
<a name="l00103"></a>00103 }
<a name="l00104"></a>00104
<a name="l00105"></a>00105 <span class="keywordtype">void</span> History::recordAdd( <a class="codeRef" doxygen="libkcal.tag:../../libkcal/html/" href="../../libkcal/html/classKCal_1_1Incidence.html">Incidence</a> *incidence )
<a name="l00106"></a>00106 {
<a name="l00107"></a>00107 Entry *entry = <span class="keyword">new</span> EntryAdd( mCalendar, incidence );
<a name="l00108"></a>00108 <span class="keywordflow">if</span> (mCurrentMultiEntry) {
<a name="l00109"></a>00109 mCurrentMultiEntry->appendEntry( entry );
<a name="l00110"></a>00110 } <span class="keywordflow">else</span> {
<a name="l00111"></a>00111 truncate();
<a name="l00112"></a>00112 mEntries.append( entry );
<a name="l00113"></a>00113 mUndoEntry.toLast();
<a name="l00114"></a>00114 mRedoEntry = QPtrList<Entry>( mEntries );
<a name="l00115"></a>00115 emit undoAvailable( entry->text() );
<a name="l00116"></a>00116 }
<a name="l00117"></a>00117 }
<a name="l00118"></a>00118
<a name="l00119"></a>00119 <span class="keywordtype">void</span> History::recordEdit( <a class="codeRef" doxygen="libkcal.tag:../../libkcal/html/" href="../../libkcal/html/classKCal_1_1Incidence.html">Incidence</a> *oldIncidence, <a class="codeRef" doxygen="libkcal.tag:../../libkcal/html/" href="../../libkcal/html/classKCal_1_1Incidence.html">Incidence</a> *newIncidence )
<a name="l00120"></a>00120 {
<a name="l00121"></a>00121 Entry *entry = <span class="keyword">new</span> EntryEdit( mCalendar, oldIncidence, newIncidence );
<a name="l00122"></a>00122 <span class="keywordflow">if</span> (mCurrentMultiEntry) {
<a name="l00123"></a>00123 mCurrentMultiEntry->appendEntry( entry );
<a name="l00124"></a>00124 } <span class="keywordflow">else</span> {
<a name="l00125"></a>00125 truncate();
<a name="l00126"></a>00126 mEntries.append( entry );
<a name="l00127"></a>00127 mUndoEntry.toLast();
<a name="l00128"></a>00128 mRedoEntry = QPtrList<Entry>( mEntries );
<a name="l00129"></a>00129 emit undoAvailable( entry->text() );
<a name="l00130"></a>00130 }
<a name="l00131"></a>00131 }
<a name="l00132"></a>00132
<a name="l00133"></a>00133 <span class="keywordtype">void</span> History::startMultiModify( <span class="keyword">const</span> QString &description )
<a name="l00134"></a>00134 {
<a name="l00135"></a>00135 <span class="keywordflow">if</span> ( mCurrentMultiEntry ) {
<a name="l00136"></a>00136 endMultiModify();
<a name="l00137"></a>00137 }
<a name="l00138"></a>00138 mCurrentMultiEntry = <span class="keyword">new</span> MultiEntry( mCalendar, description );
<a name="l00139"></a>00139 truncate();
<a name="l00140"></a>00140 mEntries.append( mCurrentMultiEntry );
<a name="l00141"></a>00141 mUndoEntry.toLast();
<a name="l00142"></a>00142 mRedoEntry = QPtrList<Entry>( mEntries );
<a name="l00143"></a>00143 emit undoAvailable( mCurrentMultiEntry->text() );
<a name="l00144"></a>00144 }
<a name="l00145"></a>00145
<a name="l00146"></a>00146 <span class="keywordtype">void</span> History::endMultiModify()
<a name="l00147"></a>00147 {
<a name="l00148"></a>00148 mCurrentMultiEntry = 0;
<a name="l00149"></a>00149 }
<a name="l00150"></a>00150
<a name="l00151"></a>00151
<a name="l00152"></a>00152 History::Entry::Entry( <a class="codeRef" doxygen="libkcal.tag:../../libkcal/html/" href="../../libkcal/html/classKCal_1_1Calendar.html">KCal::Calendar</a> *calendar )
<a name="l00153"></a>00153 : mCalendar( calendar )
<a name="l00154"></a>00154 {
<a name="l00155"></a>00155 }
<a name="l00156"></a>00156
<a name="l00157"></a>00157 History::Entry::~Entry()
<a name="l00158"></a>00158 {
<a name="l00159"></a>00159 }
<a name="l00160"></a>00160
<a name="l00161"></a>00161 History::EntryDelete::EntryDelete( <a class="codeRef" doxygen="libkcal.tag:../../libkcal/html/" href="../../libkcal/html/classKCal_1_1Calendar.html">Calendar</a> *calendar, <a class="codeRef" doxygen="libkcal.tag:../../libkcal/html/" href="../../libkcal/html/classKCal_1_1Incidence.html">Incidence</a> *incidence )
<a name="l00162"></a>00162 : Entry( calendar ), mIncidence( incidence->clone() )
<a name="l00163"></a>00163 {
<a name="l00164"></a>00164 }
<a name="l00165"></a>00165
<a name="l00166"></a>00166 History::EntryDelete::~EntryDelete()
<a name="l00167"></a>00167 {
<a name="l00168"></a>00168 <span class="keyword">delete</span> mIncidence;
<a name="l00169"></a>00169 }
<a name="l00170"></a>00170
<a name="l00171"></a>00171 <span class="keywordtype">void</span> History::EntryDelete::undo()
<a name="l00172"></a>00172 {
<a name="l00173"></a>00173 <span class="comment">// TODO: Use the proper resource instead of asking!</span>
<a name="l00174"></a>00174 mCalendar->addIncidence( mIncidence->clone() );
<a name="l00175"></a>00175 }
<a name="l00176"></a>00176
<a name="l00177"></a>00177 <span class="keywordtype">void</span> History::EntryDelete::redo()
<a name="l00178"></a>00178 {
<a name="l00179"></a>00179 <a class="codeRef" doxygen="libkcal.tag:../../libkcal/html/" href="../../libkcal/html/classKCal_1_1Incidence.html">Incidence</a> *incidence = mCalendar->incidence( mIncidence->uid() );
<a name="l00180"></a>00180 mCalendar->deleteIncidence( incidence );
<a name="l00181"></a>00181 }
<a name="l00182"></a>00182
<a name="l00183"></a>00183 QString History::EntryDelete::text()
<a name="l00184"></a>00184 {
<a name="l00185"></a>00185 <span class="keywordflow">return</span> i18n(<span class="stringliteral">"Delete %1"</span>).arg(mIncidence->type());
<a name="l00186"></a>00186 }
<a name="l00187"></a>00187
<a name="l00188"></a>00188
<a name="l00189"></a>00189 History::EntryAdd::EntryAdd( <a class="codeRef" doxygen="libkcal.tag:../../libkcal/html/" href="../../libkcal/html/classKCal_1_1Calendar.html">Calendar</a> *calendar, <a class="codeRef" doxygen="libkcal.tag:../../libkcal/html/" href="../../libkcal/html/classKCal_1_1Incidence.html">Incidence</a> *incidence )
<a name="l00190"></a>00190 : Entry( calendar ), mIncidence( incidence->clone() )
<a name="l00191"></a>00191 {
<a name="l00192"></a>00192 }
<a name="l00193"></a>00193
<a name="l00194"></a>00194 History::EntryAdd::~EntryAdd()
<a name="l00195"></a>00195 {
<a name="l00196"></a>00196 <span class="keyword">delete</span> mIncidence;
<a name="l00197"></a>00197 }
<a name="l00198"></a>00198
<a name="l00199"></a>00199 <span class="keywordtype">void</span> History::EntryAdd::undo()
<a name="l00200"></a>00200 {
<a name="l00201"></a>00201 <a class="codeRef" doxygen="libkcal.tag:../../libkcal/html/" href="../../libkcal/html/classKCal_1_1Incidence.html">Incidence</a> *incidence = mCalendar->incidence( mIncidence->uid() );
<a name="l00202"></a>00202 <span class="keywordflow">if</span> ( incidence )
<a name="l00203"></a>00203 mCalendar->deleteIncidence( incidence );
<a name="l00204"></a>00204 }
<a name="l00205"></a>00205
<a name="l00206"></a>00206 <span class="keywordtype">void</span> History::EntryAdd::redo()
<a name="l00207"></a>00207 {
<a name="l00208"></a>00208 <span class="comment">// TODO: User the proper resource instead of asking again</span>
<a name="l00209"></a>00209 mCalendar->addIncidence( mIncidence->clone() );
<a name="l00210"></a>00210 }
<a name="l00211"></a>00211
<a name="l00212"></a>00212 QString History::EntryAdd::text()
<a name="l00213"></a>00213 {
<a name="l00214"></a>00214 <span class="keywordflow">return</span> i18n(<span class="stringliteral">"Add %1"</span>).arg(mIncidence->type());
<a name="l00215"></a>00215 }
<a name="l00216"></a>00216
<a name="l00217"></a>00217
<a name="l00218"></a>00218 History::EntryEdit::EntryEdit( <a class="codeRef" doxygen="libkcal.tag:../../libkcal/html/" href="../../libkcal/html/classKCal_1_1Calendar.html">Calendar</a> *calendar, <a class="codeRef" doxygen="libkcal.tag:../../libkcal/html/" href="../../libkcal/html/classKCal_1_1Incidence.html">Incidence</a> *oldIncidence,
<a name="l00219"></a>00219 <a class="codeRef" doxygen="libkcal.tag:../../libkcal/html/" href="../../libkcal/html/classKCal_1_1Incidence.html">Incidence</a> *newIncidence )
<a name="l00220"></a>00220 : Entry( calendar ), mOldIncidence( oldIncidence->clone() ),
<a name="l00221"></a>00221 mNewIncidence( newIncidence->clone() )
<a name="l00222"></a>00222 {
<a name="l00223"></a>00223 }
<a name="l00224"></a>00224
<a name="l00225"></a>00225 History::EntryEdit::~EntryEdit()
<a name="l00226"></a>00226 {
<a name="l00227"></a>00227 <span class="keyword">delete</span> mOldIncidence;
<a name="l00228"></a>00228 <span class="keyword">delete</span> mNewIncidence;
<a name="l00229"></a>00229 }
<a name="l00230"></a>00230
<a name="l00231"></a>00231 <span class="keywordtype">void</span> History::EntryEdit::undo()
<a name="l00232"></a>00232 {
<a name="l00233"></a>00233 <a class="codeRef" doxygen="libkcal.tag:../../libkcal/html/" href="../../libkcal/html/classKCal_1_1Incidence.html">Incidence</a> *incidence = mCalendar->incidence( mNewIncidence->uid() );
<a name="l00234"></a>00234 <span class="keywordflow">if</span> ( incidence )
<a name="l00235"></a>00235 mCalendar->deleteIncidence( incidence );
<a name="l00236"></a>00236 <span class="comment">// TODO: Use the proper resource instead of asking again</span>
<a name="l00237"></a>00237 mCalendar->addIncidence( mOldIncidence->clone() );
<a name="l00238"></a>00238 }
<a name="l00239"></a>00239
<a name="l00240"></a>00240 <span class="keywordtype">void</span> History::EntryEdit::redo()
<a name="l00241"></a>00241 {
<a name="l00242"></a>00242 <a class="codeRef" doxygen="libkcal.tag:../../libkcal/html/" href="../../libkcal/html/classKCal_1_1Incidence.html">Incidence</a> *incidence = mCalendar->incidence( mOldIncidence->uid() );
<a name="l00243"></a>00243 <span class="keywordflow">if</span> ( incidence )
<a name="l00244"></a>00244 mCalendar->deleteIncidence( incidence );
<a name="l00245"></a>00245 <span class="comment">// TODO: Use the proper resource instead of asking again</span>
<a name="l00246"></a>00246 mCalendar->addIncidence( mNewIncidence->clone() );
<a name="l00247"></a>00247 }
<a name="l00248"></a>00248
<a name="l00249"></a>00249 QString History::EntryEdit::text()
<a name="l00250"></a>00250 {
<a name="l00251"></a>00251 <span class="keywordflow">return</span> i18n(<span class="stringliteral">"Edit %1"</span>).arg(mNewIncidence->type());
<a name="l00252"></a>00252 }
<a name="l00253"></a>00253
<a name="l00254"></a>00254 History::MultiEntry::MultiEntry( <a class="codeRef" doxygen="libkcal.tag:../../libkcal/html/" href="../../libkcal/html/classKCal_1_1Calendar.html">Calendar</a> *calendar, <span class="keyword">const</span> QString &text )
<a name="l00255"></a>00255 : Entry( calendar ), mText( text )
<a name="l00256"></a>00256 {
<a name="l00257"></a>00257 mEntries.setAutoDelete( <span class="keyword">true</span> );
<a name="l00258"></a>00258 }
<a name="l00259"></a>00259
<a name="l00260"></a>00260 History::MultiEntry::~MultiEntry()
<a name="l00261"></a>00261 {
<a name="l00262"></a>00262 }
<a name="l00263"></a>00263
<a name="l00264"></a>00264 <span class="keywordtype">void</span> History::MultiEntry::appendEntry( Entry* entry )
<a name="l00265"></a>00265 {
<a name="l00266"></a>00266 mEntries.append( entry );
<a name="l00267"></a>00267 }
<a name="l00268"></a>00268
<a name="l00269"></a>00269 <span class="keywordtype">void</span> History::MultiEntry::undo()
<a name="l00270"></a>00270 {
<a name="l00271"></a>00271 QPtrListIterator<Entry> it( mEntries );
<a name="l00272"></a>00272 it.toLast();
<a name="l00273"></a>00273 Entry *entry;
<a name="l00274"></a>00274 <span class="keywordflow">while</span> ( (entry = it.current()) != 0 ) {
<a name="l00275"></a>00275 --it;
<a name="l00276"></a>00276 entry->undo();
<a name="l00277"></a>00277 }
<a name="l00278"></a>00278 }
<a name="l00279"></a>00279
<a name="l00280"></a>00280 <span class="keywordtype">void</span> History::MultiEntry::redo()
<a name="l00281"></a>00281 {
<a name="l00282"></a>00282 QPtrListIterator<Entry> it( mEntries );
<a name="l00283"></a>00283 Entry *entry;
<a name="l00284"></a>00284 <span class="keywordflow">while</span> ( (entry = it.current()) != 0 ) {
<a name="l00285"></a>00285 ++it;
<a name="l00286"></a>00286 entry->redo();
<a name="l00287"></a>00287 }
<a name="l00288"></a>00288 }
<a name="l00289"></a>00289
<a name="l00290"></a>00290 QString History::MultiEntry::text()
<a name="l00291"></a>00291 {
<a name="l00292"></a>00292 <span class="keywordflow">return</span> mText;
<a name="l00293"></a>00293 }
<a name="l00294"></a>00294
<a name="l00295"></a>00295 <span class="preprocessor">#include "history.moc"</span>
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