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  1. <?xml version="1.0" encoding="UTF-8" standalone="no"?>
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  4.   <head>
  5.     <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
  6.     <title>2.7.¬† Undo History Dialog</title>
  7.     <link rel="stylesheet" href="gimp-help-plain.css" type="text/css" />
  8.     <link rel="stylesheet" href="gimp-help-screen.css" type="text/css" />
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  12.     <link rel="start" href="index.html" title="GNU Image Manipulation Program" />
  13.     <link rel="up" href="gimp-dialogs-structure.html" title="2.¬† Image Structure Related Dialogs" />
  14.     <link rel="prev" href="gimp-navigation-dialog.html" title="2.6.¬† Navigation Dialog" />
  15.     <link rel="next" href="gimp-dialogs-content.html" title="3.¬† Image-content Related Dialogs" />
  16.   </head>
  17.   <body>
  18.     <div class="navheader">
  19.       <table width="100%" summary="Navigation header">
  20.         <tr>
  21.           <th colspan="3" align="center">2.7.¬†
  22.     <span lang="en" xml:lang="en">Undo History Dialog</span>
  23.   </th>
  24.         </tr>
  25.         <tr>
  26.           <td width="20%" align="left"><a accesskey="p" href="gimp-navigation-dialog.html"><img src="../images/prev.png" alt="Prev" /></a>¬†</td>
  27.           <th width="60%" align="center">2.¬†
  28.     <span lang="en" xml:lang="en">Image Structure Related Dialogs</span>
  29.   </th>
  30.           <td width="20%" align="right">¬†<a accesskey="n" href="gimp-dialogs-content.html"><img src="../images/next.png" alt="Next" /></a></td>
  31.         </tr>
  32.       </table>
  33.       <hr />
  34.     </div>
  35.     <div class="sect2" lang="en" xml:lang="en">
  36.       <div class="titlepage">
  37.         <div>
  38.           <div>
  39.             <h3 class="title"><a id="gimp-undo-dialog"></a>2.7.¬†
  40.     <span lang="en" xml:lang="en">Undo History Dialog</span>
  41.   </h3>
  42.           </div>
  43.           <div>
  44.             <div class="revhistory">
  45.               <table border="1" width="100%" summary="Revision history">
  46.                 <tr>
  47.                   <th align="left" valign="top" colspan="3">
  48.                     <b>Revision History</b>
  49.                   </th>
  50.                 </tr>
  51.                 <tr>
  52.                   <td align="left">Revision $Revision: 2347 $</td>
  53.                   <td align="left">2007-10-07</td>
  54.                   <td align="left">j.h</td>
  55.                 </tr>
  56.               </table>
  57.             </div>
  58.           </div>
  59.         </div>
  60.       </div>
  61.       <a id="id2660104" class="indexterm"></a>
  62.       <a id="id2660118" class="indexterm"></a>
  63.       <div class="figure">
  64.         <a id="id2660130"></a>
  65.         <p class="title">
  66.           <b>Figure¬†14.23.¬†
  67.       <span lang="en" xml:lang="en">The Undo History dialog</span>
  68.     </b>
  69.         </p>
  70.         <div class="figure-contents">
  71.           <div class="mediaobject">
  72.             <img src="../images/dialogs/dialogs-undo-history.png" alt="The Undo History dialog" />
  73.           </div>
  74.         </div>
  75.       </div>
  76.       <br class="figure-break" />
  77.       <p>
  78.     This dialog shows you a list of the actions you have most recently
  79.     performed on an image, with a small sketch that attempts to illustrate the
  80.     changes produced by each. You can revert the image to any point in its
  81.     Undo History simply by clicking on the right entry in the list. For more
  82.     information on GIMP's Undo mechanism and how it works, see the section on
  83.     <a class="link" href="gimp-concepts-undo.html" title="3.¬† Undoing">Undoing</a>.
  84.   </p>
  85.       <div class="sect3" lang="en" xml:lang="en">
  86.         <div class="titlepage">
  87.           <div>
  88.             <div>
  89.               <h4 class="title"><a id="id2660178"></a>2.7.1.¬†
  90.       <span lang="en" xml:lang="en">Activate the dialog</span>
  91.     </h4>
  92.             </div>
  93.           </div>
  94.         </div>
  95.         <p>
  96.       The Undo History dialog is a dockable dialog; see the section on
  97.       <a class="link" href="gimp-concepts-docks.html" title="2.3.¬† Dialogs and Docking">Dialogs and Docking</a>
  98.       for help on manipulating it. It can be activated in several ways:
  99.     </p>
  100.         <div class="itemizedlist">
  101.           <ul type="disc">
  102.             <li>
  103.               <p>
  104.           From the Toolbox menu:
  105.           <span class="guimenu">File</span> ‚Üí <span class="guisubmenu">Dialogs</span> ‚Üí <span class="guimenuitem"><span class="accel">U</span>ndo History</span>.
  106.         </p>
  107.             </li>
  108.             <li>
  109.               <p>
  110.           From the Toolbox menu:
  111.           <span class="guimenu">File</span> ‚Üí <span class="guisubmenu">Dialogs</span> ‚Üí <span class="guisubmenu">Create New Dock</span> ‚Üí <span class="guimenuitem">Layers, Channels, and Paths</span>.
  112.           This gives you a dock containing four dialogs, with the
  113.           Undo History dialog one of them.
  114.         </p>
  115.             </li>
  116.             <li>
  117.               <p>
  118.           From an image menu:
  119.           <span class="guimenu">Edit</span> ‚Üí <span class="guimenuitem"><span class="accel">U</span>ndo History</span>.
  120.         </p>
  121.             </li>
  122.             <li>
  123.               <p>
  124.           From an image menu:
  125.           <span class="guimenu">Dialogs</span> ‚Üí <span class="guimenuitem"><span class="accel">U</span>ndo History</span>.
  126.         </p>
  127.             </li>
  128.             <li>
  129.               <p>
  130.           From the Tab menu in any dockable dialog:
  131.           <span class="guimenu">Add Tab</span> ‚Üí <span class="guimenuitem"><span class="accel">U</span>ndo History</span>.
  132.         </p>
  133.             </li>
  134.           </ul>
  135.         </div>
  136.       </div>
  137.       <div class="sect3" lang="en" xml:lang="en">
  138.         <div class="titlepage">
  139.           <div>
  140.             <div>
  141.               <h4 class="title"><a id="id2660373"></a>2.7.2.¬†
  142.       <span lang="en" xml:lang="en">Using the Undo History dialog</span>
  143.     </h4>
  144.             </div>
  145.           </div>
  146.         </div>
  147.         <p>
  148.       The most basic thing you can do is to select a point in the Undo History
  149.       by clicking on it in the list. You can go back and forth between states
  150.       in this way as much as you please, without losing any information or
  151.       consuming any resources. In most cases, the changes are very fast.
  152.     </p>
  153.         <p>At the bottom of the dialog are three buttons:</p>
  154.         <div class="variablelist">
  155.           <dl>
  156.             <dt>
  157.               <span class="term">Undo</span>
  158.             </dt>
  159.             <dd>
  160.               <p>
  161.             This button has the same effect as choosing
  162.             <span class="guimenu">Edit</span> ‚Üí <span class="guimenuitem">Undo</span>
  163.             from the menu, or pressing
  164.             <span class="keycap"><strong>Ctrl</strong></span>+<span class="keycap"><strong>Z</strong></span>;
  165.             it reverts the image to the next state back in the undo history.
  166.           </p>
  167.             </dd>
  168.             <dt>
  169.               <span class="term">Redo</span>
  170.             </dt>
  171.             <dd>
  172.               <p>
  173.             This button has the same effect as choosing
  174.             <span class="guimenu">Edit</span> ‚Üí <span class="guimenuitem">Redo</span> from the menu, or pressing
  175.             <span class="keycap"><strong>Ctrl</strong></span>+<span class="keycap"><strong>Y</strong></span>; it advances the image to the next state forward in
  176.             the undo history.
  177.           </p>
  178.             </dd>
  179.             <dt>
  180.               <span class="term">Clear Undo History</span>
  181.             </dt>
  182.             <dd>
  183.               <p>
  184.             This button removes all contents from the undo history except the
  185.             current state. If you press it, you are asked to confirm that you
  186.             really want to do this. The only reason for doing it would be if
  187.             you are very constrained for memory.
  188.           </p>
  189.               <div class="note" style="margin-left: 0.5in; margin-right: 0.5in;">
  190.                 <table border="0" summary="Note">
  191.                   <tr>
  192.                     <td rowspan="2" align="center" valign="top" width="25">
  193.                       <img alt="[Note]" src="../images/note.png" />
  194.                     </td>
  195.                     <th align="left">Note</th>
  196.                   </tr>
  197.                   <tr>
  198.                     <td align="left" valign="top">
  199.                       <p>
  200.               <span lang="en" xml:lang="en">
  201.                 In a tab, this dialog is represented by
  202.               </span>
  203.               <span class="guiicon">
  204.                 <span class="inlinemediaobject"><img src="../images/dialogs/stock-undo-history-16.png" /></span>
  205.               </span>.
  206.             </p>
  207.                     </td>
  208.                   </tr>
  209.                 </table>
  210.               </div>
  211.               <div class="note" style="margin-left: 0.5in; margin-right: 0.5in;">
  212.                 <table border="0" summary="Note">
  213.                   <tr>
  214.                     <td rowspan="2" align="center" valign="top" width="25">
  215.                       <img alt="[Note]" src="../images/note.png" />
  216.                     </td>
  217.                     <th align="left">Note</th>
  218.                   </tr>
  219.                   <tr>
  220.                     <td align="left" valign="top">
  221.                       <p>
  222.               You can set the number of undo levels in <a class="link" href="gimp-pimping.html#gimp-prefs-environment" title="1.2.¬† Environment">Preferences/Environment</a>.
  223.             </p>
  224.                     </td>
  225.                   </tr>
  226.                 </table>
  227.               </div>
  228.             </dd>
  229.           </dl>
  230.         </div>
  231.       </div>
  232.     </div>
  233.     <div class="navfooter">
  234.       <hr />
  235.       <table width="100%" summary="Navigation footer">
  236.         <tr>
  237.           <td width="40%" align="left"><a accesskey="p" href="gimp-navigation-dialog.html"><img src="../images/prev.png" alt="Prev" /></a>¬†</td>
  238.           <td width="20%" align="center">
  239.             <a accesskey="u" href="gimp-dialogs-structure.html">
  240.               <img src="../images/up.png" alt="Up" />
  241.             </a>
  242.           </td>
  243.           <td width="40%" align="right">¬†<a accesskey="n" href="gimp-dialogs-content.html"><img src="../images/next.png" alt="Next" /></a></td>
  244.         </tr>
  245.         <tr>
  246.           <td width="40%" align="left" valign="top"><a accesskey="p" href="gimp-navigation-dialog.html">2.6.¬†
  247.     <span lang="en" xml:lang="en">Navigation Dialog</span>
  248.   </a>¬†</td>
  249.           <td width="20%" align="center">
  250.             <a accesskey="h" href="index.html">
  251.               <img src="../images/home.png" alt="Home" />
  252.             </a>
  253.           </td>
  254.           <td width="40%" align="right" valign="top">¬†<a accesskey="n" href="gimp-dialogs-content.html">3.¬†
  255.     <span lang="en" xml:lang="en">Image-content Related Dialogs</span>
  256.   </a></td>
  257.         </tr>
  258.       </table>
  259.     </div>
  260.   </body>
  261. </html>
  262.