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<h1>kcommand.cpp</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/* This file is part of the KDE project</span>
<a name="l00002"></a>00002 <span class="comment">   Copyright (C) 2000 Werner Trobin &lt;trobin@kde.org&gt;</span>
<a name="l00003"></a>00003 <span class="comment">   Copyright (C) 2000 David Faure &lt;faure@kde.org&gt;</span>
<a name="l00004"></a>00004 <span class="comment"></span>
<a name="l00005"></a>00005 <span class="comment">   This library is free software; you can redistribute it and/or</span>
<a name="l00006"></a>00006 <span class="comment">   modify it under the terms of the GNU Library General Public</span>
<a name="l00007"></a>00007 <span class="comment">   License as published by the Free Software Foundation; either</span>
<a name="l00008"></a>00008 <span class="comment">   version 2 of the License, or (at your option) any later version.</span>
<a name="l00009"></a>00009 <span class="comment"></span>
<a name="l00010"></a>00010 <span class="comment">   This library is distributed in the hope that it will be useful,</span>
<a name="l00011"></a>00011 <span class="comment">   but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<a name="l00012"></a>00012 <span class="comment">   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU</span>
<a name="l00013"></a>00013 <span class="comment">   Library General Public License for more details.</span>
<a name="l00014"></a>00014 <span class="comment"></span>
<a name="l00015"></a>00015 <span class="comment">   You should have received a copy of the GNU Library General Public License</span>
<a name="l00016"></a>00016 <span class="comment">   along with this library; see the file COPYING.LIB.  If not, write to</span>
<a name="l00017"></a>00017 <span class="comment">   the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,</span>
<a name="l00018"></a>00018 <span class="comment">   Boston, MA 02110-1301, USA.</span>
<a name="l00019"></a>00019 <span class="comment">*/</span>
<a name="l00020"></a>00020 
<a name="l00021"></a>00021 <span class="preprocessor">#include "kcommand.h"</span>
<a name="l00022"></a>00022 <span class="preprocessor">#include &lt;kaction.h&gt;</span>
<a name="l00023"></a>00023 <span class="preprocessor">#include &lt;kstdaccel.h&gt;</span>
<a name="l00024"></a>00024 <span class="preprocessor">#include &lt;kstdaction.h&gt;</span>
<a name="l00025"></a>00025 <span class="preprocessor">#include &lt;kdebug.h&gt;</span>
<a name="l00026"></a>00026 <span class="preprocessor">#include &lt;<a class="codeRef" doxygen="kdecore.tag:../../kdecore/html/" href="../../kdecore/html/klocale_8h.html">klocale.h</a>&gt;</span>
<a name="l00027"></a>00027 <span class="preprocessor">#include &lt;kpopupmenu.h&gt;</span>
<a name="l00028"></a>00028 
<a name="l00029"></a><a class="code" href="classKCommand.html#a0">00029</a> <a class="code" href="classKCommand.html#a0">KCommand::~KCommand</a>()
<a name="l00030"></a>00030 {
<a name="l00031"></a>00031 }
<a name="l00032"></a>00032 
<a name="l00033"></a><a class="code" href="classKMacroCommand.html#a0">00033</a> <a class="code" href="classKMacroCommand.html#a0">KMacroCommand::KMacroCommand</a>( <span class="keyword">const</span> <a class="codeRef" doxygen="qt.tag:" href="qstring.html">QString</a> &amp; name ) : <a class="code" href="classKNamedCommand.html">KNamedCommand</a>(name)
<a name="l00034"></a>00034 {
<a name="l00035"></a>00035     <a class="code" href="classKMacroCommand.html#p0">m_commands</a>.<a class="codeRef" doxygen="qt.tag:" href="qptrlist.html#setAutoDelete">setAutoDelete</a>(<span class="keyword">true</span>);
<a name="l00036"></a>00036 }
<a name="l00037"></a>00037 
<a name="l00038"></a><a class="code" href="classKMacroCommand.html#a2">00038</a> <span class="keywordtype">void</span> <a class="code" href="classKMacroCommand.html#a2">KMacroCommand::addCommand</a>(<a class="code" href="classKCommand.html">KCommand</a> *command)
<a name="l00039"></a>00039 {
<a name="l00040"></a>00040     <a class="code" href="classKMacroCommand.html#p0">m_commands</a>.<a class="codeRef" doxygen="qt.tag:" href="qptrlist.html#append">append</a>(command);
<a name="l00041"></a>00041 }
<a name="l00042"></a>00042 
<a name="l00043"></a><a class="code" href="classKMacroCommand.html#a3">00043</a> <span class="keywordtype">void</span> <a class="code" href="classKMacroCommand.html#a3">KMacroCommand::execute</a>()
<a name="l00044"></a>00044 {
<a name="l00045"></a>00045     <a class="codeRef" doxygen="qt.tag:" href="qptrlistiterator.html">QPtrListIterator&lt;KCommand&gt;</a> it(<a class="code" href="classKMacroCommand.html#p0">m_commands</a>);
<a name="l00046"></a>00046     <span class="keywordflow">for</span> ( ; it.<a class="codeRef" doxygen="qt.tag:" href="qptrlistiterator.html#current">current</a>() ; ++it )
<a name="l00047"></a>00047         it.<a class="codeRef" doxygen="qt.tag:" href="qptrlistiterator.html#current">current</a>()-&gt;execute();
<a name="l00048"></a>00048 }
<a name="l00049"></a>00049 
<a name="l00050"></a><a class="code" href="classKMacroCommand.html#a4">00050</a> <span class="keywordtype">void</span> <a class="code" href="classKMacroCommand.html#a4">KMacroCommand::unexecute</a>()
<a name="l00051"></a>00051 {
<a name="l00052"></a>00052     <a class="codeRef" doxygen="qt.tag:" href="qptrlistiterator.html">QPtrListIterator&lt;KCommand&gt;</a> it(<a class="code" href="classKMacroCommand.html#p0">m_commands</a>);
<a name="l00053"></a>00053     it.<a class="codeRef" doxygen="qt.tag:" href="qptrlistiterator.html#toLast">toLast</a>();
<a name="l00054"></a>00054     <span class="keywordflow">for</span> ( ; it.<a class="codeRef" doxygen="qt.tag:" href="qptrlistiterator.html#current">current</a>() ; --it )
<a name="l00055"></a>00055         it.<a class="codeRef" doxygen="qt.tag:" href="qptrlistiterator.html#current">current</a>()-&gt;unexecute();
<a name="l00056"></a>00056 }
<a name="l00057"></a>00057 
<a name="l00058"></a>00058 
<a name="l00059"></a>00059 <span class="keyword">class </span>KCommandHistory::KCommandHistoryPrivate {
<a name="l00060"></a>00060 <span class="keyword">public</span>:
<a name="l00061"></a>00061     KCommandHistoryPrivate() {
<a name="l00062"></a>00062         m_savedAt=-1;
<a name="l00063"></a>00063         m_present=0;
<a name="l00064"></a>00064     }
<a name="l00065"></a>00065     ~KCommandHistoryPrivate() {}
<a name="l00066"></a>00066     <span class="keywordtype">int</span> m_savedAt;
<a name="l00067"></a>00067     <a class="code" href="classKCommand.html">KCommand</a> *m_present;
<a name="l00068"></a>00068 };
<a name="l00069"></a>00069 
<a name="l00071"></a>00071 
<a name="l00072"></a><a class="code" href="classKCommandHistory.html#a0">00072</a> <a class="code" href="classKCommandHistory.html#a0">KCommandHistory::KCommandHistory</a>() :
<a name="l00073"></a>00073     m_undo(0), m_redo(0), m_undoLimit(50), m_redoLimit(30), m_first(false)
<a name="l00074"></a>00074 {
<a name="l00075"></a>00075     d=<span class="keyword">new</span> KCommandHistoryPrivate();
<a name="l00076"></a>00076     m_commands.<a class="codeRef" doxygen="qt.tag:" href="qptrlist.html#setAutoDelete">setAutoDelete</a>(<span class="keyword">true</span>);
<a name="l00077"></a>00077     <a class="code" href="classKCommandHistory.html#a3">clear</a>();
<a name="l00078"></a>00078 }
<a name="l00079"></a>00079 
<a name="l00080"></a><a class="code" href="classKCommandHistory.html#a1">00080</a> <a class="code" href="classKCommandHistory.html#a0">KCommandHistory::KCommandHistory</a>(<a class="code" href="classKActionCollection.html">KActionCollection</a> * actionCollection, <span class="keywordtype">bool</span> withMenus) :
<a name="l00081"></a>00081     m_undoLimit(50), m_redoLimit(30), m_first(false)
<a name="l00082"></a>00082 {
<a name="l00083"></a>00083     d=<span class="keyword">new</span> KCommandHistoryPrivate();
<a name="l00084"></a>00084     <span class="keywordflow">if</span> (withMenus)
<a name="l00085"></a>00085     {
<a name="l00086"></a>00086         <a class="code" href="classKToolBarPopupAction.html">KToolBarPopupAction</a> * <a class="code" href="classKCommandHistory.html#i0">undo</a> = <span class="keyword">new</span> <a class="code" href="classKToolBarPopupAction.html">KToolBarPopupAction</a>( i18n(<span class="stringliteral">"&amp;Undo"</span>), <span class="stringliteral">"undo"</span>,
<a name="l00087"></a>00087                                           <a class="codeRef" doxygen="kdecore.tag:../../kdecore/html/" href="../../kdecore/html/namespaceKStdAccel.html#a57">KStdAccel::shortcut</a>(KStdAccel::Undo), <span class="keyword">this</span>, SLOT( <a class="code" href="classKCommandHistory.html#i0">undo</a>() ),
<a name="l00088"></a>00088                                           actionCollection, <a class="code" href="namespaceKStdAction.html#a131">KStdAction::stdName</a>( KStdAction::Undo ) );
<a name="l00089"></a>00089         <a class="codeRef" doxygen="qt.tag:" href="qobject.html#connect">connect</a>( undo-&gt;<a class="code" href="classKToolBarPopupAction.html#a5">popupMenu</a>(), SIGNAL( aboutToShow() ), <span class="keyword">this</span>, SLOT( <a class="code" href="classKCommandHistory.html#j0">slotUndoAboutToShow</a>() ) );
<a name="l00090"></a>00090         <a class="codeRef" doxygen="qt.tag:" href="qobject.html#connect">connect</a>( undo-&gt;<a class="code" href="classKToolBarPopupAction.html#a5">popupMenu</a>(), SIGNAL( activated( <span class="keywordtype">int</span> ) ), <span class="keyword">this</span>, SLOT( <a class="code" href="classKCommandHistory.html#j1">slotUndoActivated</a>( <span class="keywordtype">int</span> ) ) );
<a name="l00091"></a>00091         m_undo = undo;
<a name="l00092"></a>00092         m_undoPopup = undo-&gt;<a class="code" href="classKToolBarPopupAction.html#a5">popupMenu</a>();
<a name="l00093"></a>00093 
<a name="l00094"></a>00094         <a class="code" href="classKToolBarPopupAction.html">KToolBarPopupAction</a> * <a class="code" href="classKCommandHistory.html#i1">redo</a> = <span class="keyword">new</span> <a class="code" href="classKToolBarPopupAction.html">KToolBarPopupAction</a>( i18n(<span class="stringliteral">"&amp;Redo"</span>), <span class="stringliteral">"redo"</span>,
<a name="l00095"></a>00095                                           <a class="codeRef" doxygen="kdecore.tag:../../kdecore/html/" href="../../kdecore/html/namespaceKStdAccel.html#a57">KStdAccel::shortcut</a>(KStdAccel::Redo), <span class="keyword">this</span>, SLOT( <a class="code" href="classKCommandHistory.html#i1">redo</a>() ),
<a name="l00096"></a>00096                                           actionCollection, <a class="code" href="namespaceKStdAction.html#a131">KStdAction::stdName</a>( KStdAction::Redo ) );
<a name="l00097"></a>00097         <a class="codeRef" doxygen="qt.tag:" href="qobject.html#connect">connect</a>( redo-&gt;<a class="code" href="classKToolBarPopupAction.html#a5">popupMenu</a>(), SIGNAL( aboutToShow() ), <span class="keyword">this</span>, SLOT( <a class="code" href="classKCommandHistory.html#j2">slotRedoAboutToShow</a>() ) );
<a name="l00098"></a>00098         <a class="codeRef" doxygen="qt.tag:" href="qobject.html#connect">connect</a>( redo-&gt;<a class="code" href="classKToolBarPopupAction.html#a5">popupMenu</a>(), SIGNAL( activated( <span class="keywordtype">int</span> ) ), <span class="keyword">this</span>, SLOT( <a class="code" href="classKCommandHistory.html#j3">slotRedoActivated</a>( <span class="keywordtype">int</span> ) ) );
<a name="l00099"></a>00099         m_redo = redo;
<a name="l00100"></a>00100         m_redoPopup = redo-&gt;<a class="code" href="classKToolBarPopupAction.html#a5">popupMenu</a>();
<a name="l00101"></a>00101     }
<a name="l00102"></a>00102     <span class="keywordflow">else</span>
<a name="l00103"></a>00103     {
<a name="l00104"></a>00104         m_undo = <a class="code" href="namespaceKStdAction.html#a77">KStdAction::undo</a>( <span class="keyword">this</span>, SLOT( <a class="code" href="classKCommandHistory.html#i0">undo</a>() ), actionCollection );
<a name="l00105"></a>00105         m_redo = <a class="code" href="namespaceKStdAction.html#a78">KStdAction::redo</a>( <span class="keyword">this</span>, SLOT( <a class="code" href="classKCommandHistory.html#i1">redo</a>() ), actionCollection );
<a name="l00106"></a>00106         m_undoPopup = 0L;
<a name="l00107"></a>00107         m_redoPopup = 0L;
<a name="l00108"></a>00108     }
<a name="l00109"></a>00109     m_commands.<a class="codeRef" doxygen="qt.tag:" href="qptrlist.html#setAutoDelete">setAutoDelete</a>(<span class="keyword">true</span>);
<a name="l00110"></a>00110     <a class="code" href="classKCommandHistory.html#a3">clear</a>();
<a name="l00111"></a>00111 }
<a name="l00112"></a>00112 
<a name="l00113"></a><a class="code" href="classKCommandHistory.html#a2">00113</a> <a class="code" href="classKCommandHistory.html#a2">KCommandHistory::~KCommandHistory</a>() {
<a name="l00114"></a>00114     <span class="keyword">delete</span> d;
<a name="l00115"></a>00115 }
<a name="l00116"></a>00116 
<a name="l00117"></a><a class="code" href="classKCommandHistory.html#a3">00117</a> <span class="keywordtype">void</span> <a class="code" href="classKCommandHistory.html#a3">KCommandHistory::clear</a>() {
<a name="l00118"></a>00118     <span class="keywordflow">if</span> (m_undo) {
<a name="l00119"></a>00119         m_undo-&gt;<a class="code" href="classKAction.html#i7">setEnabled</a>(<span class="keyword">false</span>);
<a name="l00120"></a>00120         m_undo-&gt;<a class="code" href="classKAction.html#i0">setText</a>(i18n(<span class="stringliteral">"&amp;Undo"</span>));
<a name="l00121"></a>00121     }
<a name="l00122"></a>00122     <span class="keywordflow">if</span> (m_redo) {
<a name="l00123"></a>00123         m_redo-&gt;<a class="code" href="classKAction.html#i7">setEnabled</a>(<span class="keyword">false</span>);
<a name="l00124"></a>00124         m_redo-&gt;<a class="code" href="classKAction.html#i0">setText</a>(i18n(<span class="stringliteral">"&amp;Redo"</span>));
<a name="l00125"></a>00125     }
<a name="l00126"></a>00126     d-&gt;m_present = 0L;
<a name="l00127"></a>00127     d-&gt;m_savedAt=-42;
<a name="l00128"></a>00128 }
<a name="l00129"></a>00129 
<a name="l00130"></a><a class="code" href="classKCommandHistory.html#a4">00130</a> <span class="keywordtype">void</span> <a class="code" href="classKCommandHistory.html#a4">KCommandHistory::addCommand</a>(<a class="code" href="classKCommand.html">KCommand</a> *command, <span class="keywordtype">bool</span> execute) {
<a name="l00131"></a>00131 
<a name="l00132"></a>00132     <span class="keywordflow">if</span>(!command)
<a name="l00133"></a>00133         <span class="keywordflow">return</span>;
<a name="l00134"></a>00134 
<a name="l00135"></a>00135     <span class="keywordtype">int</span> index;
<a name="l00136"></a>00136     <span class="keywordflow">if</span>(d-&gt;m_present &amp;&amp; (index=m_commands.<a class="codeRef" doxygen="qt.tag:" href="qptrlist.html#findRef">findRef</a>(d-&gt;m_present))!=-1) {
<a name="l00137"></a>00137         <span class="keywordflow">if</span> (m_first)
<a name="l00138"></a>00138             --index;
<a name="l00139"></a>00139         m_commands.<a class="codeRef" doxygen="qt.tag:" href="qptrlist.html#insert">insert</a>(index+1, command);
<a name="l00140"></a>00140         <span class="comment">// truncate history</span>
<a name="l00141"></a>00141         <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> count=m_commands.<a class="codeRef" doxygen="qt.tag:" href="qptrlist.html#count">count</a>();
<a name="l00142"></a>00142         <span class="keywordflow">for</span>(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i=index+2; i&lt;count; ++i)
<a name="l00143"></a>00143             m_commands.<a class="codeRef" doxygen="qt.tag:" href="qptrlist.html#removeLast">removeLast</a>();
<a name="l00144"></a>00144         <span class="comment">// check whether we still can reach savedAt</span>
<a name="l00145"></a>00145         <span class="keywordflow">if</span>(index&lt;d-&gt;m_savedAt)
<a name="l00146"></a>00146             d-&gt;m_savedAt=-1;
<a name="l00147"></a>00147         d-&gt;m_present=command;
<a name="l00148"></a>00148         m_first=<span class="keyword">false</span>;
<a name="l00149"></a>00149         <span class="keywordflow">if</span> (m_undo) {
<a name="l00150"></a>00150             m_undo-&gt;<a class="code" href="classKAction.html#i7">setEnabled</a>(<span class="keyword">true</span>);
<a name="l00151"></a>00151             m_undo-&gt;<a class="code" href="classKAction.html#i0">setText</a>(i18n(<span class="stringliteral">"&amp;Undo: %1"</span>).arg(d-&gt;m_present-&gt;name()));
<a name="l00152"></a>00152         }
<a name="l00153"></a>00153         <span class="keywordflow">if</span>((m_redo) &amp;&amp; m_redo-&gt;<a class="code" href="classKAction.html#a33">isEnabled</a>()) {
<a name="l00154"></a>00154             m_redo-&gt;<a class="code" href="classKAction.html#i7">setEnabled</a>(<span class="keyword">false</span>);
<a name="l00155"></a>00155             m_redo-&gt;<a class="code" href="classKAction.html#i0">setText</a>(i18n(<span class="stringliteral">"&amp;Redo"</span>));
<a name="l00156"></a>00156         }
<a name="l00157"></a>00157         clipCommands();
<a name="l00158"></a>00158     }
<a name="l00159"></a>00159     <span class="keywordflow">else</span> { <span class="comment">// either this is the first time we add a Command or something has gone wrong</span>
<a name="l00160"></a>00160         <a class="codeRef" doxygen="kdecore.tag:../../kdecore/html/" href="../../kdecore/html/group__kdebug.html#gga6">kdDebug</a>(230) &lt;&lt; <span class="stringliteral">"Initializing the Command History"</span> &lt;&lt; <a class="codeRef" doxygen="kdecore.tag:../../kdecore/html/" href="../../kdecore/html/group__kdebug.html#gga3">endl</a>;
<a name="l00161"></a>00161         m_commands.<a class="codeRef" doxygen="qt.tag:" href="qptrlist.html#clear">clear</a>();
<a name="l00162"></a>00162         m_commands.<a class="codeRef" doxygen="qt.tag:" href="qptrlist.html#append">append</a>(command);
<a name="l00163"></a>00163         d-&gt;m_present=command;
<a name="l00164"></a>00164         <span class="keywordflow">if</span> (m_undo) {
<a name="l00165"></a>00165             m_undo-&gt;<a class="code" href="classKAction.html#i7">setEnabled</a>(<span class="keyword">true</span>);
<a name="l00166"></a>00166             m_undo-&gt;<a class="code" href="classKAction.html#i0">setText</a>(i18n(<span class="stringliteral">"&amp;Undo: %1"</span>).arg(d-&gt;m_present-&gt;name()));
<a name="l00167"></a>00167         }
<a name="l00168"></a>00168         <span class="keywordflow">if</span> (m_redo) {
<a name="l00169"></a>00169             m_redo-&gt;<a class="code" href="classKAction.html#i7">setEnabled</a>(<span class="keyword">false</span>);
<a name="l00170"></a>00170             m_redo-&gt;<a class="code" href="classKAction.html#i0">setText</a>(i18n(<span class="stringliteral">"&amp;Redo"</span>));
<a name="l00171"></a>00171         }
<a name="l00172"></a>00172         m_first=<span class="keyword">false</span>;    <span class="comment">// Michael B: yes, that *is* correct :-)</span>
<a name="l00173"></a>00173     }
<a name="l00174"></a>00174     <span class="keywordflow">if</span> ( execute )
<a name="l00175"></a>00175     {
<a name="l00176"></a>00176         command-&gt;<a class="code" href="classKCommand.html#a1">execute</a>();
<a name="l00177"></a>00177         emit <a class="code" href="classKCommandHistory.html#l0">commandExecuted</a>();
<a name="l00178"></a>00178         emit <a class="code" href="classKCommandHistory.html#l0">commandExecuted</a>(command);
<a name="l00179"></a>00179     }
<a name="l00180"></a>00180 }
<a name="l00181"></a>00181 
<a name="l00182"></a><a class="code" href="classKCommandHistory.html#i0">00182</a> <span class="keywordtype">void</span> <a class="code" href="classKCommandHistory.html#i0">KCommandHistory::undo</a>() {
<a name="l00183"></a>00183 
<a name="l00184"></a>00184     <span class="keywordflow">if</span> (m_first || !d-&gt;m_present)
<a name="l00185"></a>00185         <span class="keywordflow">return</span>;
<a name="l00186"></a>00186 
<a name="l00187"></a>00187     d-&gt;m_present-&gt;unexecute();
<a name="l00188"></a>00188     emit <a class="code" href="classKCommandHistory.html#l0">commandExecuted</a>();
<a name="l00189"></a>00189     emit <a class="code" href="classKCommandHistory.html#l0">commandExecuted</a>(d-&gt;m_present);
<a name="l00190"></a>00190     <span class="keywordflow">if</span> (m_redo) {
<a name="l00191"></a>00191         m_redo-&gt;<a class="code" href="classKAction.html#i7">setEnabled</a>(<span class="keyword">true</span>);
<a name="l00192"></a>00192         m_redo-&gt;<a class="code" href="classKAction.html#i0">setText</a>(i18n(<span class="stringliteral">"&amp;Redo: %1"</span>).arg(d-&gt;m_present-&gt;name()));
<a name="l00193"></a>00193     }
<a name="l00194"></a>00194     <span class="keywordtype">int</span> index;
<a name="l00195"></a>00195     <span class="keywordflow">if</span>((index=m_commands.<a class="codeRef" doxygen="qt.tag:" href="qptrlist.html#findRef">findRef</a>(d-&gt;m_present))!=-1 &amp;&amp; m_commands.<a class="codeRef" doxygen="qt.tag:" href="qptrlist.html#prev">prev</a>()) {
<a name="l00196"></a>00196         d-&gt;m_present=m_commands.<a class="codeRef" doxygen="qt.tag:" href="qptrlist.html#current">current</a>();
<a name="l00197"></a>00197         <span class="keywordflow">if</span> (m_undo) {
<a name="l00198"></a>00198             m_undo-&gt;<a class="code" href="classKAction.html#i7">setEnabled</a>(<span class="keyword">true</span>);
<a name="l00199"></a>00199             m_undo-&gt;<a class="code" href="classKAction.html#i0">setText</a>(i18n(<span class="stringliteral">"&amp;Undo: %1"</span>).arg(d-&gt;m_present-&gt;name()));
<a name="l00200"></a>00200         }
<a name="l00201"></a>00201         --index;
<a name="l00202"></a>00202         <span class="keywordflow">if</span>(index==d-&gt;m_savedAt)
<a name="l00203"></a>00203             emit <a class="code" href="classKCommandHistory.html#l2">documentRestored</a>();
<a name="l00204"></a>00204     }
<a name="l00205"></a>00205     <span class="keywordflow">else</span> {
<a name="l00206"></a>00206         <span class="keywordflow">if</span> (m_undo) {
<a name="l00207"></a>00207             m_undo-&gt;<a class="code" href="classKAction.html#i7">setEnabled</a>(<span class="keyword">false</span>);
<a name="l00208"></a>00208             m_undo-&gt;<a class="code" href="classKAction.html#i0">setText</a>(i18n(<span class="stringliteral">"&amp;Undo"</span>));
<a name="l00209"></a>00209         }
<a name="l00210"></a>00210         <span class="keywordflow">if</span>(d-&gt;m_savedAt==-42)
<a name="l00211"></a>00211             emit <a class="code" href="classKCommandHistory.html#l2">documentRestored</a>();
<a name="l00212"></a>00212         m_first=<span class="keyword">true</span>;
<a name="l00213"></a>00213     }
<a name="l00214"></a>00214     clipCommands(); <span class="comment">// only needed here and in addCommand, NOT in redo</span>
<a name="l00215"></a>00215 }
<a name="l00216"></a>00216 
<a name="l00217"></a><a class="code" href="classKCommandHistory.html#i1">00217</a> <span class="keywordtype">void</span> <a class="code" href="classKCommandHistory.html#i1">KCommandHistory::redo</a>() {
<a name="l00218"></a>00218 
<a name="l00219"></a>00219     <span class="keywordtype">int</span> index;
<a name="l00220"></a>00220     <span class="keywordflow">if</span>(m_first) {
<a name="l00221"></a>00221         d-&gt;m_present-&gt;execute();
<a name="l00222"></a>00222         emit <a class="code" href="classKCommandHistory.html#l0">commandExecuted</a>();
<a name="l00223"></a>00223         emit <a class="code" href="classKCommandHistory.html#l0">commandExecuted</a>(d-&gt;m_present);
<a name="l00224"></a>00224         m_first=<span class="keyword">false</span>;
<a name="l00225"></a>00225         m_commands.<a class="codeRef" doxygen="qt.tag:" href="qptrlist.html#first">first</a>();
<a name="l00226"></a>00226         <span class="keywordflow">if</span>(!d-&gt;m_savedAt)
<a name="l00227"></a>00227             emit <a class="code" href="classKCommandHistory.html#l2">documentRestored</a>();
<a name="l00228"></a>00228     }
<a name="l00229"></a>00229     <span class="keywordflow">else</span> <span class="keywordflow">if</span>((index=m_commands.<a class="codeRef" doxygen="qt.tag:" href="qptrlist.html#findRef">findRef</a>(d-&gt;m_present))!=-1 &amp;&amp; m_commands.<a class="codeRef" doxygen="qt.tag:" href="qptrlist.html#next">next</a>()) {
<a name="l00230"></a>00230         d-&gt;m_present=m_commands.<a class="codeRef" doxygen="qt.tag:" href="qptrlist.html#current">current</a>();
<a name="l00231"></a>00231         d-&gt;m_present-&gt;execute();
<a name="l00232"></a>00232         emit <a class="code" href="classKCommandHistory.html#l0">commandExecuted</a>();
<a name="l00233"></a>00233         emit <a class="code" href="classKCommandHistory.html#l0">commandExecuted</a>(d-&gt;m_present);
<a name="l00234"></a>00234         ++index;
<a name="l00235"></a>00235         <span class="keywordflow">if</span>(index==d-&gt;m_savedAt)
<a name="l00236"></a>00236             emit <a class="code" href="classKCommandHistory.html#l2">documentRestored</a>();
<a name="l00237"></a>00237     }
<a name="l00238"></a>00238 
<a name="l00239"></a>00239     <span class="keywordflow">if</span> (m_undo) {
<a name="l00240"></a>00240         m_undo-&gt;<a class="code" href="classKAction.html#i7">setEnabled</a>(<span class="keyword">true</span>);
<a name="l00241"></a>00241         m_undo-&gt;<a class="code" href="classKAction.html#i0">setText</a>(i18n(<span class="stringliteral">"&amp;Undo: %1"</span>).arg(d-&gt;m_present-&gt;name()));
<a name="l00242"></a>00242     }
<a name="l00243"></a>00243 
<a name="l00244"></a>00244     <span class="keywordflow">if</span>(m_commands.<a class="codeRef" doxygen="qt.tag:" href="qptrlist.html#next">next</a>()) {
<a name="l00245"></a>00245         <span class="keywordflow">if</span> (m_redo) {
<a name="l00246"></a>00246             m_redo-&gt;<a class="code" href="classKAction.html#i7">setEnabled</a>(<span class="keyword">true</span>);
<a name="l00247"></a>00247             m_redo-&gt;<a class="code" href="classKAction.html#i0">setText</a>(i18n(<span class="stringliteral">"&amp;Redo: %1"</span>).arg(m_commands.<a class="codeRef" doxygen="qt.tag:" href="qptrlist.html#current">current</a>()-&gt;name()));
<a name="l00248"></a>00248         }
<a name="l00249"></a>00249     }
<a name="l00250"></a>00250     <span class="keywordflow">else</span> {
<a name="l00251"></a>00251         <span class="keywordflow">if</span>((m_redo) &amp;&amp; m_redo-&gt;<a class="code" href="classKAction.html#a33">isEnabled</a>()) {
<a name="l00252"></a>00252             m_redo-&gt;<a class="code" href="classKAction.html#i7">setEnabled</a>(<span class="keyword">false</span>);
<a name="l00253"></a>00253             m_redo-&gt;<a class="code" href="classKAction.html#i0">setText</a>(i18n(<span class="stringliteral">"&amp;Redo"</span>));
<a name="l00254"></a>00254         }
<a name="l00255"></a>00255     }
<a name="l00256"></a>00256 }
<a name="l00257"></a>00257 
<a name="l00258"></a><a class="code" href="classKCommandHistory.html#i2">00258</a> <span class="keywordtype">void</span> <a class="code" href="classKCommandHistory.html#i2">KCommandHistory::documentSaved</a>() {
<a name="l00259"></a>00259     <span class="keywordflow">if</span>(d-&gt;m_present &amp;&amp; !m_first)
<a name="l00260"></a>00260         d-&gt;m_savedAt=m_commands.<a class="codeRef" doxygen="qt.tag:" href="qptrlist.html#findRef">findRef</a>(d-&gt;m_present);
<a name="l00261"></a>00261     <span class="keywordflow">else</span> <span class="keywordflow">if</span>(!d-&gt;m_present &amp;&amp; !m_first)
<a name="l00262"></a>00262         d-&gt;m_savedAt=-42;  <span class="comment">// this value signals that the document has</span>
<a name="l00263"></a>00263                         <span class="comment">// been saved with an empty history.</span>
<a name="l00264"></a>00264     <span class="keywordflow">else</span> <span class="keywordflow">if</span>(m_first)
<a name="l00265"></a>00265         d-&gt;m_savedAt=-42;
<a name="l00266"></a>00266 }
<a name="l00267"></a>00267 
<a name="l00268"></a><a class="code" href="classKCommandHistory.html#a6">00268</a> <span class="keywordtype">void</span> <a class="code" href="classKCommandHistory.html#a6">KCommandHistory::setUndoLimit</a>(<span class="keywordtype">int</span> limit) {
<a name="l00269"></a>00269 
<a name="l00270"></a>00270     <span class="keywordflow">if</span>(limit&gt;0 &amp;&amp; limit!=m_undoLimit) {
<a name="l00271"></a>00271         m_undoLimit=limit;
<a name="l00272"></a>00272         clipCommands();
<a name="l00273"></a>00273     }
<a name="l00274"></a>00274 }
<a name="l00275"></a>00275 
<a name="l00276"></a><a class="code" href="classKCommandHistory.html#a8">00276</a> <span class="keywordtype">void</span> <a class="code" href="classKCommandHistory.html#a8">KCommandHistory::setRedoLimit</a>(<span class="keywordtype">int</span> limit) {
<a name="l00277"></a>00277 
<a name="l00278"></a>00278     <span class="keywordflow">if</span>(limit&gt;0 &amp;&amp; limit!=m_redoLimit) {
<a name="l00279"></a>00279         m_redoLimit=limit;
<a name="l00280"></a>00280         clipCommands();
<a name="l00281"></a>00281     }
<a name="l00282"></a>00282 }
<a name="l00283"></a>00283 
<a name="l00284"></a>00284 <span class="keywordtype">void</span> KCommandHistory::clipCommands() {
<a name="l00285"></a>00285 
<a name="l00286"></a>00286     <span class="keywordtype">int</span> count=m_commands.<a class="codeRef" doxygen="qt.tag:" href="qptrlist.html#count">count</a>();
<a name="l00287"></a>00287     <span class="keywordflow">if</span>(count&lt;=m_undoLimit &amp;&amp; count&lt;=m_redoLimit)
<a name="l00288"></a>00288         <span class="keywordflow">return</span>;
<a name="l00289"></a>00289 
<a name="l00290"></a>00290     <span class="keywordtype">int</span> index=m_commands.<a class="codeRef" doxygen="qt.tag:" href="qptrlist.html#findRef">findRef</a>(d-&gt;m_present);
<a name="l00291"></a>00291     <span class="keywordflow">if</span>(index&gt;=m_undoLimit) {
<a name="l00292"></a>00292         <span class="keywordflow">for</span>(<span class="keywordtype">int</span> i=0; i&lt;=(index-m_undoLimit); ++i) {
<a name="l00293"></a>00293             m_commands.<a class="codeRef" doxygen="qt.tag:" href="qptrlist.html#removeFirst">removeFirst</a>();
<a name="l00294"></a>00294             --d-&gt;m_savedAt;
<a name="l00295"></a>00295             <span class="keywordflow">if</span>(d-&gt;m_savedAt==-1)
<a name="l00296"></a>00296                 d-&gt;m_savedAt=-42;
<a name="l00297"></a>00297         }
<a name="l00298"></a>00298         index=m_commands.<a class="codeRef" doxygen="qt.tag:" href="qptrlist.html#findRef">findRef</a>(d-&gt;m_present); <span class="comment">// calculate the new</span>
<a name="l00299"></a>00299         count=m_commands.<a class="codeRef" doxygen="qt.tag:" href="qptrlist.html#count">count</a>();            <span class="comment">// values (for the redo-branch :)</span>
<a name="l00300"></a>00300         <span class="comment">// make it easier for us... d-&gt;m_savedAt==-1 -&gt; invalid</span>
<a name="l00301"></a>00301         <span class="keywordflow">if</span>(d-&gt;m_savedAt!=-42 &amp;&amp; d-&gt;m_savedAt&lt;-1)
<a name="l00302"></a>00302             d-&gt;m_savedAt=-1;
<a name="l00303"></a>00303     }
<a name="l00304"></a>00304     <span class="comment">// adjust the index if it's the first command</span>
<a name="l00305"></a>00305     <span class="keywordflow">if</span>(m_first)
<a name="l00306"></a>00306         index=-1;
<a name="l00307"></a>00307     <span class="keywordflow">if</span>((index+m_redoLimit+1)&lt;count) {
<a name="l00308"></a>00308         <span class="keywordflow">if</span>(d-&gt;m_savedAt&gt;(index+m_redoLimit))
<a name="l00309"></a>00309             d-&gt;m_savedAt=-1;
<a name="l00310"></a>00310         <span class="keywordflow">for</span>(<span class="keywordtype">int</span> i=0; i&lt;(count-(index+m_redoLimit+1)); ++i)
<a name="l00311"></a>00311             m_commands.<a class="codeRef" doxygen="qt.tag:" href="qptrlist.html#removeLast">removeLast</a>();
<a name="l00312"></a>00312     }
<a name="l00313"></a>00313 }
<a name="l00314"></a>00314 
<a name="l00315"></a><a class="code" href="classKCommandHistory.html#j0">00315</a> <span class="keywordtype">void</span> <a class="code" href="classKCommandHistory.html#j0">KCommandHistory::slotUndoAboutToShow</a>()
<a name="l00316"></a>00316 {
<a name="l00317"></a>00317     m_undoPopup-&gt;<a class="codeRef" doxygen="qt.tag:" href="qpopupmenu.html#clear">clear</a>();
<a name="l00318"></a>00318     <span class="keywordtype">int</span> i = 0;
<a name="l00319"></a>00319     <span class="keywordflow">if</span> (m_commands.<a class="codeRef" doxygen="qt.tag:" href="qptrlist.html#findRef">findRef</a>(d-&gt;m_present)!=-1)
<a name="l00320"></a>00320         <span class="keywordflow">while</span> ( m_commands.<a class="codeRef" doxygen="qt.tag:" href="qptrlist.html#current">current</a>() &amp;&amp; i&lt;10 ) <span class="comment">// TODO make number of items configurable ?</span>
<a name="l00321"></a>00321         {
<a name="l00322"></a>00322             m_undoPopup-&gt;<a class="codeRef" doxygen="qt.tag:" href="qpopupmenu.html#insertItem">insertItem</a>( i18n(<span class="stringliteral">"Undo: %1"</span>).arg(m_commands.<a class="codeRef" doxygen="qt.tag:" href="qptrlist.html#current">current</a>()-&gt;name()), i++ );
<a name="l00323"></a>00323             m_commands.<a class="codeRef" doxygen="qt.tag:" href="qptrlist.html#prev">prev</a>();
<a name="l00324"></a>00324         }
<a name="l00325"></a>00325 }
<a name="l00326"></a>00326 
<a name="l00327"></a><a class="code" href="classKCommandHistory.html#j1">00327</a> <span class="keywordtype">void</span> <a class="code" href="classKCommandHistory.html#j1">KCommandHistory::slotUndoActivated</a>( <span class="keywordtype">int</span> pos )
<a name="l00328"></a>00328 {
<a name="l00329"></a>00329     <a class="codeRef" doxygen="kdecore.tag:../../kdecore/html/" href="../../kdecore/html/group__kdebug.html#gga6">kdDebug</a>(230) &lt;&lt; <span class="stringliteral">"KCommandHistory::slotUndoActivated "</span> &lt;&lt; pos &lt;&lt; <a class="codeRef" doxygen="kdecore.tag:../../kdecore/html/" href="../../kdecore/html/group__kdebug.html#gga3">endl</a>;
<a name="l00330"></a>00330     <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i = 0 ; i &lt; pos+1; ++i )
<a name="l00331"></a>00331         <a class="code" href="classKCommandHistory.html#i0">undo</a>();
<a name="l00332"></a>00332 }
<a name="l00333"></a>00333 
<a name="l00334"></a><a class="code" href="classKCommandHistory.html#j2">00334</a> <span class="keywordtype">void</span> <a class="code" href="classKCommandHistory.html#j2">KCommandHistory::slotRedoAboutToShow</a>()
<a name="l00335"></a>00335 {
<a name="l00336"></a>00336     m_redoPopup-&gt;<a class="codeRef" doxygen="qt.tag:" href="qpopupmenu.html#clear">clear</a>();
<a name="l00337"></a>00337     <span class="keywordtype">int</span> i = 0;
<a name="l00338"></a>00338     <span class="keywordflow">if</span> (m_first)
<a name="l00339"></a>00339     {
<a name="l00340"></a>00340         d-&gt;m_present = m_commands.<a class="codeRef" doxygen="qt.tag:" href="qptrlist.html#first">first</a>();
<a name="l00341"></a>00341         m_redoPopup-&gt;<a class="codeRef" doxygen="qt.tag:" href="qpopupmenu.html#insertItem">insertItem</a>( i18n(<span class="stringliteral">"Redo: %1"</span>).arg(d-&gt;m_present-&gt;name()), i++ );
<a name="l00342"></a>00342     }
<a name="l00343"></a>00343     <span class="keywordflow">if</span> (m_commands.<a class="codeRef" doxygen="qt.tag:" href="qptrlist.html#findRef">findRef</a>(d-&gt;m_present)!=-1 &amp;&amp; m_commands.<a class="codeRef" doxygen="qt.tag:" href="qptrlist.html#next">next</a>())
<a name="l00344"></a>00344         <span class="keywordflow">while</span> ( m_commands.<a class="codeRef" doxygen="qt.tag:" href="qptrlist.html#current">current</a>() &amp;&amp; i&lt;10 ) <span class="comment">// TODO make number of items configurable ?</span>
<a name="l00345"></a>00345         {
<a name="l00346"></a>00346             m_redoPopup-&gt;<a class="codeRef" doxygen="qt.tag:" href="qpopupmenu.html#insertItem">insertItem</a>( i18n(<span class="stringliteral">"Redo: %1"</span>).arg(m_commands.<a class="codeRef" doxygen="qt.tag:" href="qptrlist.html#current">current</a>()-&gt;name()), i++ );
<a name="l00347"></a>00347             m_commands.<a class="codeRef" doxygen="qt.tag:" href="qptrlist.html#next">next</a>();
<a name="l00348"></a>00348         }
<a name="l00349"></a>00349 }
<a name="l00350"></a>00350 
<a name="l00351"></a><a class="code" href="classKCommandHistory.html#j3">00351</a> <span class="keywordtype">void</span> <a class="code" href="classKCommandHistory.html#j3">KCommandHistory::slotRedoActivated</a>( <span class="keywordtype">int</span> pos )
<a name="l00352"></a>00352 {
<a name="l00353"></a>00353     <a class="codeRef" doxygen="kdecore.tag:../../kdecore/html/" href="../../kdecore/html/group__kdebug.html#gga6">kdDebug</a>(230) &lt;&lt; <span class="stringliteral">"KCommandHistory::slotRedoActivated "</span> &lt;&lt; pos &lt;&lt; <a class="codeRef" doxygen="kdecore.tag:../../kdecore/html/" href="../../kdecore/html/group__kdebug.html#gga3">endl</a>;
<a name="l00354"></a>00354     <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i = 0 ; i &lt; pos+1; ++i )
<a name="l00355"></a>00355         <a class="code" href="classKCommandHistory.html#i1">redo</a>();
<a name="l00356"></a>00356 }
<a name="l00357"></a>00357 
<a name="l00358"></a><a class="code" href="classKCommandHistory.html#a9">00358</a> <span class="keywordtype">void</span> <a class="code" href="classKCommandHistory.html#a9">KCommandHistory::updateActions</a>()
<a name="l00359"></a>00359 {
<a name="l00360"></a>00360     <span class="keywordflow">if</span> ( m_undo &amp;&amp; m_redo )
<a name="l00361"></a>00361     {
<a name="l00362"></a>00362         m_undo-&gt;<a class="code" href="classKAction.html#i7">setEnabled</a>( !m_first &amp;&amp; ( d-&gt;m_present ) );
<a name="l00363"></a>00363         m_redo-&gt;<a class="code" href="classKAction.html#i7">setEnabled</a>(m_first || (m_commands.<a class="codeRef" doxygen="qt.tag:" href="qptrlist.html#findRef">findRef</a>(d-&gt;m_present)!=-1 &amp;&amp; m_commands.<a class="codeRef" doxygen="qt.tag:" href="qptrlist.html#next">next</a>()));
<a name="l00364"></a>00364     }
<a name="l00365"></a>00365 }
<a name="l00366"></a>00366 
<a name="l00367"></a><a class="code" href="classKCommand.html#b1">00367</a> <span class="keywordtype">void</span> <a class="code" href="classKCommand.html#b1">KCommand::virtual_hook</a>( <span class="keywordtype">int</span>, <span class="keywordtype">void</span>* )
<a name="l00368"></a>00368 { <span class="comment">/*BASE::virtual_hook( id, data );*/</span> }
<a name="l00369"></a>00369 
<a name="l00370"></a><a class="code" href="classKNamedCommand.html#b1">00370</a> <span class="keywordtype">void</span> <a class="code" href="classKNamedCommand.html#b1">KNamedCommand::virtual_hook</a>( <span class="keywordtype">int</span> <span class="keywordtype">id</span>, <span class="keywordtype">void</span>* data )
<a name="l00371"></a>00371 { <a class="code" href="classKCommand.html#b1">KCommand::virtual_hook</a>( <span class="keywordtype">id</span>, data ); }
<a name="l00372"></a>00372 
<a name="l00373"></a><a class="code" href="classKMacroCommand.html#b0">00373</a> <span class="keywordtype">void</span> <a class="code" href="classKMacroCommand.html#b0">KMacroCommand::virtual_hook</a>( <span class="keywordtype">int</span> <span class="keywordtype">id</span>, <span class="keywordtype">void</span>* data )
<a name="l00374"></a>00374 { <a class="code" href="classKNamedCommand.html#b1">KNamedCommand::virtual_hook</a>( <span class="keywordtype">id</span>, data ); }
<a name="l00375"></a>00375 
<a name="l00376"></a><a class="code" href="classKCommandHistory.html#b0">00376</a> <span class="keywordtype">void</span> <a class="code" href="classKCommandHistory.html#b0">KCommandHistory::virtual_hook</a>( <span class="keywordtype">int</span>, <span class="keywordtype">void</span>* )
<a name="l00377"></a>00377 { <span class="comment">/*BASE::virtual_hook( id, data );*/</span> }
<a name="l00378"></a>00378 
<a name="l00379"></a>00379 <span class="preprocessor">#include "kcommand.moc"</span>
</pre></div>    </div></div>


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