<html> <head> <link rel="stylesheet" href="page.css" type="text/css"> <title>fox-toolkit.org - Documentation</title> </head> <body bgcolor=#ffffff link=#990033 vlink=#990033 alink=#990033 text=#000000> <font face='verdana,sans-serif' size=2 > <!---- TOPIC TITLE WITH LOGO---> <table border=0 cellpadding= cellspacing=2 width=100% ><tr><td><a href='http://www.fox-toolkit.org/doc.html'><img src='../art/foxlogo_small.jpg' border=0></a></td><td width=100% valign=bottom><font face='verdana,sans-serif' size=2 ><b> <a class="qindex" href="index.html">Main Page</a> <a class="qindex" href="hierarchy.html">Class Hierarchy</a> <a class="qindex" href="classes.html">Alphabetical List</a> <a class="qindex" href="annotated.html">Compound List</a> <a class="qindex" href="files.html">File List</a> <a class="qindex" href="functions.html">Compound Members</a> <br><img src='../art/line.gif' width=100% height=1></b></font></td></tr></table> <p> <!--- TOPIC TITLE WITH LOGO ---> <!-- Generated by Doxygen 1.3.3 --> <h1>FXDelegator.h</h1><div class="fragment"><pre>00001 <span class="comment">/********************************************************************************</span> 00002 <span class="comment">* *</span> 00003 <span class="comment">* D e l e g a t o r T a r g e t *</span> 00004 <span class="comment">* *</span> 00005 <span class="comment">*********************************************************************************</span> 00006 <span class="comment">* Copyright (C) 2000,2004 by Jeroen van der Zijp. All Rights Reserved. *</span> 00007 <span class="comment">*********************************************************************************</span> 00008 <span class="comment">* This library is free software; you can redistribute it and/or *</span> 00009 <span class="comment">* modify it under the terms of the GNU Lesser General Public *</span> 00010 <span class="comment">* License as published by the Free Software Foundation; either *</span> 00011 <span class="comment">* version 2.1 of the License, or (at your option) any later version. *</span> 00012 <span class="comment">* *</span> 00013 <span class="comment">* This library is distributed in the hope that it will be useful, *</span> 00014 <span class="comment">* but WITHOUT ANY WARRANTY; without even the implied warranty of *</span> 00015 <span class="comment">* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *</span> 00016 <span class="comment">* Lesser General Public License for more details. *</span> 00017 <span class="comment">* *</span> 00018 <span class="comment">* You should have received a copy of the GNU Lesser General Public *</span> 00019 <span class="comment">* License along with this library; if not, write to the Free Software *</span> 00020 <span class="comment">* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. *</span> 00021 <span class="comment">*********************************************************************************</span> 00022 <span class="comment">* $Id: FXDelegator.h,v 1.12 2004/02/08 17:17:33 fox Exp $ *</span> 00023 <span class="comment">********************************************************************************/</span> 00024 <span class="preprocessor">#ifndef FXDELEGATOR_H</span> 00025 <span class="preprocessor"></span><span class="preprocessor">#define FXDELEGATOR_H</span> 00026 <span class="preprocessor"></span> 00027 <span class="preprocessor">#ifndef FXOBJECT_H</span> 00028 <span class="preprocessor"></span><span class="preprocessor">#include "FXObject.h"</span> 00029 <span class="preprocessor">#endif</span> 00030 <span class="preprocessor"></span> 00031 <span class="keyword">namespace </span>FX { 00032 00033 <span class="comment"></span> 00034 <span class="comment">/**</span> 00035 <span class="comment">* A delegator forwards messages to a delegate object.</span> 00036 <span class="comment">* Delegators are used when you need to multiplex messages</span> 00037 <span class="comment">* toward any number of target objects.</span> 00038 <span class="comment">* For example, many controls may be connected to FXDelegator,</span> 00039 <span class="comment">* instead of directly to the document object. Changing the</span> 00040 <span class="comment">* delegate in FXDelegator will then reconnect the controls with their</span> 00041 <span class="comment">* new target.</span> 00042 <span class="comment">*/</span> <a name="l00043"></a><a class="code" href="classFX_1_1FXDelegator.html">00043</a> <span class="keyword">class </span>FXAPI FXDelegator : <span class="keyword">public</span> <a class="code" href="classFX_1_1FXObject.html">FXObject</a> { 00044 FXDECLARE(FXDelegator) 00045 <span class="keyword">protected</span>: 00046 <a class="code" href="classFX_1_1FXObject.html">FXObject</a> *delegate; 00047 <span class="keyword">private</span>: 00048 FXDelegator(<span class="keyword">const</span> FXDelegator&); 00049 FXDelegator &operator=(<span class="keyword">const</span> FXDelegator&); <a name="l00050"></a><a class="code" href="classFX_1_1FXDelegator.html#a1">00050</a> <span class="keyword">public</span>: 00051 <span class="keyword">virtual</span> <span class="keywordtype">long</span> onDefault(<a class="code" href="classFX_1_1FXObject.html">FXObject</a>*,FXSelector,<span class="keywordtype">void</span>*); 00052 <span class="keyword">public</span>: <a name="l00053"></a><a class="code" href="classFX_1_1FXDelegator.html#a2">00053</a> <span class="comment"></span> 00054 <span class="comment"> /// Construct a delegator</span> 00055 <span class="comment"></span> FXDelegator(<a class="code" href="classFX_1_1FXObject.html">FXObject</a>* target=NULL):delegate(target){ } <a name="l00056"></a><a class="code" href="classFX_1_1FXDelegator.html#a3">00056</a> <span class="comment"></span> 00057 <span class="comment"> /// Return delegate object</span> 00058 <span class="comment"></span> <a class="code" href="classFX_1_1FXObject.html">FXObject</a>* getDelegate()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> delegate; } <a name="l00059"></a><a class="code" href="classFX_1_1FXDelegator.html#a4">00059</a> <span class="comment"></span> 00060 <span class="comment"> /// Change delegate object</span> 00061 <span class="comment"></span> <span class="keywordtype">void</span> setDelegate(<a class="code" href="classFX_1_1FXObject.html">FXObject</a>* target){ delegate=target; } 00062 <span class="comment"></span> 00063 <span class="comment"> /// Always trash during detroy</span> 00064 <span class="comment"></span> <span class="keyword">virtual</span> ~FXDelegator(){ delegate=(FXObject*)-1; } 00065 }; 00066 00067 } 00068 00069 <span class="preprocessor">#endif</span> </pre></div></font> <!--- COPYRIGHT --> <p> <table width=100% cellpadding=0 cellspacing=0><tr><td width=100% valign=top id=HEADLINE align=right> <img src='../art/line.gif' width=100% height=1><font size=-1> Copyright © 1997-2004 Jeroen van der Zijp</font> </td></tr></table> </p> <!--- COPYRIGHT --> </body> </html>