<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en"> <head> <title>KTextEditor.VariableInterface</title> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <meta http-equiv="Content-Style-Type" content="text/css" /> <link rel="stylesheet" type="text/css" href="../common/doxygen.css" /> <link rel="stylesheet" media="screen" type="text/css" title="KDE Colors" href="../common/kde.css" /> </head> <body> <div id="container"> <div id="header"> <div id="header_top"> <div> <div> <img alt ="" src="../common/top-kde.jpg"/> KDE 4.9 PyKDE API Reference </div> </div> </div> <div id="header_bottom"> <div id="location"> <ul> <li>KDE's Python API</li> </ul> </div> <div id="menu"> <ul> <li><a href="../modules.html">Overview</a></li> <li><a href="http://techbase.kde.org/Development/Languages/Python">PyKDE Home</a></li> <li><a href="http://kde.org/family/">Sitemap</a></li> <li><a href="http://kde.org/contact/">Contact Us</a></li> </ul> </div> </div> </div> <div id="body_wrapper"> <div id="body"> <div id="right"> <div class="content"> <div id="main"> <div class="clearer"> </div> <h1>VariableInterface Class Reference</h1> <code>from PyKDE4.ktexteditor import *</code> <p> Namespace: <a href="../ktexteditor/KTextEditor.html">KTextEditor</a><br /> <h2>Detailed Description</h2> <p>Variable/Modeline extension interface for the Document. </p> <p> <b>Introduction </b> </p> <p> The VariableInterface is designed to provide access to so called "document variables" (also called modelines), for example variables defined in files like "kate: variable value;" or the emacs style "-*- variable: value -*-". </p> <p> The idea is to allow KTextEditor plugins and applications to use document variables. A document implementing this interface should return values for variables that it does not otherwise know how to use, since they could be of interest for plugins. A Document implementing this interface must emit the signal variableChanged() whenever a variable/value pair was set, changed or removed. </p> <p> <dl class="note" compact><dt><b>Note:</b></dt><dd> Implementations should check the document variables whenever the document was saved or loaded. </dd></dl> </p> <p> <b>Accessing the VariableInterface </b> </p> <p> The VariableInterface is an extension interface for a Document, i.e. the Document inherits the interface provided that the used KTextEditor library implements the interface. Use qobject_cast to access the interface: <pre class="fragment"> // doc is of type KTextEditor.Document* KTextEditor.VariableInterface *iface = qobject_cast<KTextEditor.VariableInterface*>( doc ); if( iface ) { // the implementation supports the interface // do stuff } </pre> </p> <p> <dl class="see" compact><dt><b>See also:</b></dt><dd> KTextEditor.Document, KTextEditor.Plugin </dd></dl> <dl class="author" compact><dt><b>Author:</b></dt><dd> Anders Lund <anders@alweb.dk> </dd></dl> </p> <table border="0" cellpadding="0" cellspacing="0"><tr><td colspan="2"><br><h2>Methods</h2></td></tr> <tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="#VariableInterface">__init__</a> (self)</td></tr> <tr><td class="memItemLeft" nowrap align="right" valign="top">QString </td><td class="memItemRight" valign="bottom"><a class="el" href="#variable">variable</a> (self, QString name)</td></tr> <tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="#variableChanged">variableChanged</a> (self, <a href="../ktexteditor/KTextEditor.Document.html">KTextEditor.Document</a> document, QString variable, QString value)</td></tr> </table> <hr><h2>Method Documentation</h2><a class="anchor" name="VariableInterface"></a> <div class="memitem"> <div class="memproto"> <table class="memname"><tr> <td class="memname">__init__</td> <td>(</td> <td class="paramtype"> </td> <td class="paramname"><em>self</em> )</td> <td width="100%"> </td> </tr> </table> </div> <div class="memdoc"></div></div><a class="anchor" name="variable"></a> <div class="memitem"> <div class="memproto"> <table class="memname"><tr> <td class="memname">QString variable</td> <td>(</td> <td class="paramtype"> <em>self</em>, </td> <td class="paramname"></td> </tr><tr> <td class="memname"></td> <td></td> <td class="paramtype">QString </td> <td class="paramname"><em>name</em></td> </tr> <tr> <td></td> <td>)</td> <td></td> <td></td> <td width="100%"> </td> </tr></table> </div> <div class="memdoc"><dl compact><dt><b>Abstract method:</b></dt><dd>This method is abstract and can be overridden but not called directly.</dd></dl><p>Get the value of the variable <b>name.</b> <dl class="return" compact><dt><b>Returns:</b></dt><dd> the value or an empty string if the variable is not set or has no value. </dd></dl> </p></div></div><a class="anchor" name="variableChanged"></a> <div class="memitem"> <div class="memproto"> <table class="memname"><tr> <td class="memname"> variableChanged</td> <td>(</td> <td class="paramtype"> <em>self</em>, </td> <td class="paramname"></td> </tr><tr> <td class="memname"></td> <td></td> <td class="paramtype"><a href="../ktexteditor/KTextEditor.Document.html">KTextEditor.Document</a> </td> <td class="paramname"><em>document</em>, </td> </tr> <tr> <td class="memname"></td> <td></td> <td class="paramtype">QString </td> <td class="paramname"><em>variable</em>, </td> </tr> <tr> <td class="memname"></td> <td></td> <td class="paramtype">QString </td> <td class="paramname"><em>value</em></td> </tr> <tr> <td></td> <td>)</td> <td></td> <td></td> <td width="100%"> </td> </tr></table> </div> <div class="memdoc"><dl compact><dt><b>Abstract method:</b></dt><dd>This method is abstract and can be overridden but not called directly.</dd></dl><p>The <b>document</b> emits this signal whenever the <b>value</b> of the <b>variable</b> changed, this includes when a variable was initially set. </p><dl compact><dt><b>Parameters:</b></dt><dd> <table border="0" cellspacing="2" cellpadding="0"> <tr><td></td><td valign="top"><em>document</em> </td><td> document that emitted the signal </td></tr> </table></dl> <p> </p><dl compact><dt><b>Parameters:</b></dt><dd> <table border="0" cellspacing="2" cellpadding="0"> <tr><td></td><td valign="top"><em>variable</em> </td><td> variable that changed </td></tr> </table></dl> <p> </p><dl compact><dt><b>Parameters:</b></dt><dd> <table border="0" cellspacing="2" cellpadding="0"> <tr><td></td><td valign="top"><em>value</em> </td><td> new value for variable </td></tr> </table></dl> <p> <dl class="see" compact><dt><b>See also:</b></dt><dd> variable() </dd></dl> </p></div></div> </div> </div> </div> <div id="left"> <div class="menu_box"> <div class="nav_list"> <ul> <li><a href="../allclasses.html">Full Index</a></li> </ul> </div> <a name="cp-menu" /><div class="menutitle"><div> <h2 id="cp-menu-project">Modules</h2> </div></div> <div class="nav_list"> <ul><li><a href="../akonadi/index.html">akonadi</a></li> <li><a href="../dnssd/index.html">dnssd</a></li> <li><a href="../kdecore/index.html">kdecore</a></li> <li><a href="../kdeui/index.html">kdeui</a></li> <li><a href="../khtml/index.html">khtml</a></li> <li><a href="../kio/index.html">kio</a></li> <li><a href="../knewstuff/index.html">knewstuff</a></li> <li><a href="../kparts/index.html">kparts</a></li> <li><a href="../kutils/index.html">kutils</a></li> <li><a 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