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<div class="title">KCommandHistory Class Reference</div> </div>
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<!-- doxytag: class="KCommandHistory" --><!-- doxytag: inherits="QObject" -->
<p>The command history stores a (user) configurable amount of Commands.
<a href="classKCommandHistory.html#details">More...</a></p>
<p><code>#include <<a class="el" href="kcommand_8h_source.html">kcommand.h</a>></code></p>
<div class="dynheader">
Inheritance diagram for KCommandHistory:</div>
<div class="dyncontent">
<div class="center">
<img src="classKCommandHistory.png" usemap="#KCommandHistory_map" alt=""/>
<map id="KCommandHistory_map" name="KCommandHistory_map">
<area href="qobject.html" alt="QObject" shape="rect" coords="0,0,115,24"/>
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<p><a href="classKCommandHistory-members.html">List of all members.</a></p>
<table class="memberdecls">
<tr><td colspan="2"><h2><a name="pub-slots"></a>
Public Slots</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classKCommandHistory.html#a5a012d50a058a779d007f29b4a54aaa0">undo</a> ()</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classKCommandHistory.html#aa60d481168428f11b65aa49dd756ec15">redo</a> ()</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classKCommandHistory.html#ace74119db216a419e9a394af324af2df">documentSaved</a> ()</td></tr>
<tr><td colspan="2"><h2><a name="signals"></a>
Signals</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classKCommandHistory.html#ad87d0d1dd56c7c4b0c7101301b7ae8f5">commandExecuted</a> ()</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classKCommandHistory.html#a84d6fd816f28276ad120027c0f93520b">commandExecuted</a> (<a class="el" href="classKCommand.html">KCommand</a> *command)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classKCommandHistory.html#a86dcb4bc645859bd91c1a1177897804e">documentRestored</a> ()</td></tr>
<tr><td colspan="2"><h2><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classKCommandHistory.html#af003f2dd497159877c32375aedd4279f">KCommandHistory</a> ()</td></tr>
<tr><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classKCommandHistory.html#a4ff88e1baccb69dd560c68c06eee6812">KCommandHistory</a> (<a class="el" href="classKActionCollection.html">KActionCollection</a> *actionCollection, bool withMenus=true)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual </td><td class="memItemRight" valign="bottom"><a class="el" href="classKCommandHistory.html#afd86891771725420176459c0d4f38b13">~KCommandHistory</a> ()</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classKCommandHistory.html#a263396f1a3c368c4fa616c0a1c62f2c6">clear</a> ()</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classKCommandHistory.html#a60d78e8d98582b80cc70f87d23391776">addCommand</a> (<a class="el" href="classKCommand.html">KCommand</a> *command, bool execute=true)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="classKCommandHistory.html#afe586ef38d8c48ca83cd49d64647da58">undoLimit</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classKCommandHistory.html#a21c3b202699cf0ba43bb54204f033f95">setUndoLimit</a> (int limit)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="classKCommandHistory.html#a16e9ed3169dd0c6585f3272b4563a2c3">redoLimit</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classKCommandHistory.html#a1da34ffcf23207c8c8c86f183871cf44">setRedoLimit</a> (int limit)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classKCommandHistory.html#a7daba4a09ec089970e8945adfa98a454">updateActions</a> ()</td></tr>
<tr><td colspan="2"><h2><a name="pro-slots"></a>
Protected Slots</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a055b048a8a208cfcc7aad9bd316ba589"></a><!-- doxytag: member="KCommandHistory::slotUndoAboutToShow" ref="a055b048a8a208cfcc7aad9bd316ba589" args="()" -->
void </td><td class="memItemRight" valign="bottom"><b>slotUndoAboutToShow</b> ()</td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ad078c9e11741eee56c567d01eabb5fa1"></a><!-- doxytag: member="KCommandHistory::slotUndoActivated" ref="ad078c9e11741eee56c567d01eabb5fa1" args="(int)" -->
void </td><td class="memItemRight" valign="bottom"><b>slotUndoActivated</b> (int)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ad17b13d4bcde788539e67f49e156b0eb"></a><!-- doxytag: member="KCommandHistory::slotRedoAboutToShow" ref="ad17b13d4bcde788539e67f49e156b0eb" args="()" -->
void </td><td class="memItemRight" valign="bottom"><b>slotRedoAboutToShow</b> ()</td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a8b92441e3ade00c4a1c34bbba0c3fbff"></a><!-- doxytag: member="KCommandHistory::slotRedoActivated" ref="a8b92441e3ade00c4a1c34bbba0c3fbff" args="(int)" -->
void </td><td class="memItemRight" valign="bottom"><b>slotRedoActivated</b> (int)</td></tr>
<tr><td colspan="2"><h2><a name="pro-methods"></a>
Protected Member Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ae52bc53cdaf9c617b141deee790beefc"></a><!-- doxytag: member="KCommandHistory::virtual_hook" ref="ae52bc53cdaf9c617b141deee790beefc" args="(int id, void *data)" -->
virtual void </td><td class="memItemRight" valign="bottom"><b>virtual_hook</b> (int id, void *data)</td></tr>
</table>
<hr/><a name="details" id="details"></a><h2>Detailed Description</h2>
<div class="textblock"><p>The command history stores a (user) configurable amount of Commands. </p>
<p>It keeps track of its size and deletes commands if it gets too large. The user can set a maximum undo and a maximum redo limit (e.g. max. 50 undo / 30 redo commands). The <a class="el" href="classKCommandHistory.html" title="The command history stores a (user) configurable amount of Commands.">KCommandHistory</a> keeps track of the "borders" and deletes commands, if appropriate. It also activates/deactivates the undo/redo actions in the menu and changes the text according to the name of the command. </p>
<p>Definition at line <a class="el" href="kcommand_8h_source.html#l00156">156</a> of file <a class="el" href="kcommand_8h_source.html">kcommand.h</a>.</p>
</div><hr/><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" id="af003f2dd497159877c32375aedd4279f"></a><!-- doxytag: member="KCommandHistory::KCommandHistory" ref="af003f2dd497159877c32375aedd4279f" args="()" -->
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<td class="memname">KCommandHistory::KCommandHistory </td>
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<p>Creates a command history, to store commands. </p>
<p>This constructor doesn't create actions, so you need to call <a class="el" href="classKCommandHistory.html#a5a012d50a058a779d007f29b4a54aaa0" title="Undoes the last action.">undo</a> and <a class="el" href="classKCommandHistory.html#aa60d481168428f11b65aa49dd756ec15" title="Redoes the last undone action.">redo</a> yourself. </p>
<p>Definition at line <a class="el" href="kcommand_8cpp_source.html#l00072">72</a> of file <a class="el" href="kcommand_8cpp_source.html">kcommand.cpp</a>.</p>
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<a class="anchor" id="a4ff88e1baccb69dd560c68c06eee6812"></a><!-- doxytag: member="KCommandHistory::KCommandHistory" ref="a4ff88e1baccb69dd560c68c06eee6812" args="(KActionCollection *actionCollection, bool withMenus=true)" -->
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<td class="memname">KCommandHistory::KCommandHistory </td>
<td>(</td>
<td class="paramtype"><a class="el" href="classKActionCollection.html">KActionCollection</a> * </td>
<td class="paramname"><em>actionCollection</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">bool </td>
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<p>Creates a command history, to store commands. </p>
<p>This also creates an undo and a redo action, in the <code>actionCollection</code>, using the standard names ("edit_undo" and "edit_redo"). </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">withMenus</td><td>if true, the actions will display a menu when plugged into a toolbar. </td></tr>
<tr><td class="paramname">actionCollection</td><td>the parent collection </td></tr>
</table>
</dd>
</dl>
<p>Definition at line <a class="el" href="kcommand_8cpp_source.html#l00080">80</a> of file <a class="el" href="kcommand_8cpp_source.html">kcommand.cpp</a>.</p>
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<a class="anchor" id="afd86891771725420176459c0d4f38b13"></a><!-- doxytag: member="KCommandHistory::~KCommandHistory" ref="afd86891771725420176459c0d4f38b13" args="()" -->
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<td class="memname">KCommandHistory::~KCommandHistory </td>
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<td><code> [virtual]</code></td>
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<p>Destructs the command history object. </p>
<p>Definition at line <a class="el" href="kcommand_8cpp_source.html#l00113">113</a> of file <a class="el" href="kcommand_8cpp_source.html">kcommand.cpp</a>.</p>
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<hr/><h2>Member Function Documentation</h2>
<a class="anchor" id="a60d78e8d98582b80cc70f87d23391776"></a><!-- doxytag: member="KCommandHistory::addCommand" ref="a60d78e8d98582b80cc70f87d23391776" args="(KCommand *command, bool execute=true)" -->
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<td class="memname">void KCommandHistory::addCommand </td>
<td>(</td>
<td class="paramtype"><a class="el" href="classKCommand.html">KCommand</a> * </td>
<td class="paramname"><em>command</em>, </td>
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<td class="paramtype">bool </td>
<td class="paramname"><em>execute</em> = <code>true</code> </td>
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<p>Adds a command to the history. </p>
<p>Call this for each <code>command</code> you create. Unless you set <code>execute</code> to false, this will also execute the command. This means, most of the application's code will look like MyCommand * cmd = new MyCommand(i18n("Capitalized Name"), parameters); m_historyCommand.addCommand( cmd ); </p>
<p>Definition at line <a class="el" href="kcommand_8cpp_source.html#l00130">130</a> of file <a class="el" href="kcommand_8cpp_source.html">kcommand.cpp</a>.</p>
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<a class="anchor" id="a263396f1a3c368c4fa616c0a1c62f2c6"></a><!-- doxytag: member="KCommandHistory::clear" ref="a263396f1a3c368c4fa616c0a1c62f2c6" args="()" -->
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<td class="memname">void KCommandHistory::clear </td>
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<p>Erases all the undo/redo history. </p>
<p>Use this when reloading the data, for instance, since this invalidates all the commands. </p>
<p>Definition at line <a class="el" href="kcommand_8cpp_source.html#l00117">117</a> of file <a class="el" href="kcommand_8cpp_source.html">kcommand.cpp</a>.</p>
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<a class="anchor" id="a84d6fd816f28276ad120027c0f93520b"></a><!-- doxytag: member="KCommandHistory::commandExecuted" ref="a84d6fd816f28276ad120027c0f93520b" args="(KCommand *command)" -->
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<td class="memname">void KCommandHistory::commandExecuted </td>
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<td class="paramtype"><a class="el" href="classKCommand.html">KCommand</a> * </td>
<td class="paramname"><em>command</em></td><td>)</td>
<td><code> [signal]</code></td>
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<p>Emitted every time a command is executed (whether by addCommand, undo or redo). </p>
<p>You can use this to update the GUI, for instance. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">command</td><td>was executed </td></tr>
</table>
</dd>
</dl>
<dl class="since"><dt><b>Since:</b></dt><dd>3.5 </dd></dl>
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<a class="anchor" id="ad87d0d1dd56c7c4b0c7101301b7ae8f5"></a><!-- doxytag: member="KCommandHistory::commandExecuted" ref="ad87d0d1dd56c7c4b0c7101301b7ae8f5" args="()" -->
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<td class="memname">void KCommandHistory::commandExecuted </td>
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<p>Emitted every time a command is executed (whether by addCommand, undo or redo). </p>
<p>You can use this to update the GUI, for instance.</p>
<p>KDE4 TODO: remove </p>
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<a class="anchor" id="a86dcb4bc645859bd91c1a1177897804e"></a><!-- doxytag: member="KCommandHistory::documentRestored" ref="a86dcb4bc645859bd91c1a1177897804e" args="()" -->
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<td class="memname">void KCommandHistory::documentRestored </td>
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<p>Emitted every time we reach the index where you saved the document for the last time. </p>
<p>See documentSaved </p>
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<a class="anchor" id="ace74119db216a419e9a394af324af2df"></a><!-- doxytag: member="KCommandHistory::documentSaved" ref="ace74119db216a419e9a394af324af2df" args="()" -->
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<td class="memname">void KCommandHistory::documentSaved </td>
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<p>Remembers when you saved the document. </p>
<p>Call this right after saving the document. As soon as the history reaches the current index again (via some undo/redo operations) it will emit documentRestored If you implemented undo/redo properly the document is the same you saved before. </p>
<p>Definition at line <a class="el" href="kcommand_8cpp_source.html#l00258">258</a> of file <a class="el" href="kcommand_8cpp_source.html">kcommand.cpp</a>.</p>
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<a class="anchor" id="aa60d481168428f11b65aa49dd756ec15"></a><!-- doxytag: member="KCommandHistory::redo" ref="aa60d481168428f11b65aa49dd756ec15" args="()" -->
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<td class="memname">void KCommandHistory::redo </td>
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<p>Redoes the last undone action. </p>
<p>Call this if you don't use the builtin KActions. </p>
<p>Definition at line <a class="el" href="kcommand_8cpp_source.html#l00217">217</a> of file <a class="el" href="kcommand_8cpp_source.html">kcommand.cpp</a>.</p>
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<a class="anchor" id="a16e9ed3169dd0c6585f3272b4563a2c3"></a><!-- doxytag: member="KCommandHistory::redoLimit" ref="a16e9ed3169dd0c6585f3272b4563a2c3" args="() const " -->
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<td class="memname">int KCommandHistory::redoLimit </td>
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<dl class="return"><dt><b>Returns:</b></dt><dd>the maximum number of items in the redo history </dd></dl>
<p>Definition at line <a class="el" href="kcommand_8h_source.html#l00208">208</a> of file <a class="el" href="kcommand_8h_source.html">kcommand.h</a>.</p>
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<td class="memname">void KCommandHistory::setRedoLimit </td>
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<p>Sets the maximum number of items in the redo history. </p>
<p>Definition at line <a class="el" href="kcommand_8cpp_source.html#l00276">276</a> of file <a class="el" href="kcommand_8cpp_source.html">kcommand.cpp</a>.</p>
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<a class="anchor" id="a21c3b202699cf0ba43bb54204f033f95"></a><!-- doxytag: member="KCommandHistory::setUndoLimit" ref="a21c3b202699cf0ba43bb54204f033f95" args="(int limit)" -->
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<p>Sets the maximum number of items in the undo history. </p>
<p>Definition at line <a class="el" href="kcommand_8cpp_source.html#l00268">268</a> of file <a class="el" href="kcommand_8cpp_source.html">kcommand.cpp</a>.</p>
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<a class="anchor" id="a5a012d50a058a779d007f29b4a54aaa0"></a><!-- doxytag: member="KCommandHistory::undo" ref="a5a012d50a058a779d007f29b4a54aaa0" args="()" -->
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<td class="memname">void KCommandHistory::undo </td>
<td>(</td>
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<td><code> [virtual, slot]</code></td>
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<p>Undoes the last action. </p>
<p>Call this if you don't use the builtin KActions. </p>
<p>Definition at line <a class="el" href="kcommand_8cpp_source.html#l00182">182</a> of file <a class="el" href="kcommand_8cpp_source.html">kcommand.cpp</a>.</p>
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<a class="anchor" id="afe586ef38d8c48ca83cd49d64647da58"></a><!-- doxytag: member="KCommandHistory::undoLimit" ref="afe586ef38d8c48ca83cd49d64647da58" args="() const " -->
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<td class="memname">int KCommandHistory::undoLimit </td>
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<td> const<code> [inline]</code></td>
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<dl class="return"><dt><b>Returns:</b></dt><dd>the maximum number of items in the undo history </dd></dl>
<p>Definition at line <a class="el" href="kcommand_8h_source.html#l00200">200</a> of file <a class="el" href="kcommand_8h_source.html">kcommand.h</a>.</p>
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<a class="anchor" id="a7daba4a09ec089970e8945adfa98a454"></a><!-- doxytag: member="KCommandHistory::updateActions" ref="a7daba4a09ec089970e8945adfa98a454" args="()" -->
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<td class="memname">void KCommandHistory::updateActions </td>
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<p>Enable or disable the undo and redo actions. </p>
<p>This isn't usually necessary, but this method can be useful if you disable all actions (to go to a "readonly" state), and then want to come back to a readwrite mode. </p>
<p>Definition at line <a class="el" href="kcommand_8cpp_source.html#l00358">358</a> of file <a class="el" href="kcommand_8cpp_source.html">kcommand.cpp</a>.</p>
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<hr/>The documentation for this class was generated from the following files:<ul>
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<li><a class="el" href="kcommand_8cpp_source.html">kcommand.cpp</a></li>
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