|
|
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html><head><meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1">
<title>Math: EObserver.h Source File</title>
<link href="doxygen.css" rel="stylesheet" type="text/css">
</head><body>
<!-- Generated by Doxygen 1.4.2 -->
<div class="qindex"><a class="qindex" href="index.html">Main Page</a> | <a class="qindex" href="modules.html">Modules</a> | <a class="qindex" href="hierarchy.html">Class Hierarchy</a> | <a class="qindex" href="annotated.html">Class List</a> | <a class="qindex" href="files.html">File List</a> | <a class="qindex" href="functions.html">Class Members</a> | <a class="qindex" href="globals.html">File Members</a></div>
<h1>EObserver.h</h1><a href="_e_observer_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment">00001
00002 <span class="preprocessor">#ifndef E_OBSERVER_H</span>
00003 <span class="preprocessor"></span><span class="preprocessor">#define E_OBSERVER_H</span>
00004 <span class="preprocessor"></span>
00005 <span class="preprocessor">#include <algorithm></span>
00006 <span class="preprocessor">#include <list></span>
00007
00014 <span class="keyword">template</span><<span class="keyword">typename</span> T>
<a name="l00015"></a><a class="code" href="class_e_subject.html">00015</a> <span class="keyword">class </span><a class="code" href="class_e_subject.html">ESubject</a>
00016 {
00017 <span class="keyword">typedef</span> std::list<T*> EObserverContainer;
00018 <span class="keyword">public</span>:
00019
<a name="l00026"></a><a class="code" href="class_e_subject.html#a0">00026</a> <span class="keyword">virtual</span> <a class="code" href="class_e_subject.html#a0">~ESubject</a>() { }
00027
<a name="l00035"></a><a class="code" href="class_e_subject.html#a1">00035</a> <span class="keywordtype">void</span> <a class="code" href="class_e_subject.html#a1">addObserver</a>(T* observer)
00036 {
00037 m_observers.push_back(observer);
00038 }
00039
<a name="l00048"></a><a class="code" href="class_e_subject.html#a2">00048</a> <span class="keywordtype">void</span> <a class="code" href="class_e_subject.html#a2">removeObserver</a>(T* observer)
00049 {
00050 <span class="keyword">typename</span> EObserverContainer::iterator i = std::find(m_observers.begin(),
00051 m_observers.end(),
00052 observer);
00053 <span class="keywordflow">if</span> (i == m_observers.end()) <span class="keywordflow">return</span>;
00054
00055 m_observers.erase(i);
00056 }
00057
00068 <span class="keyword">template</span><<span class="keyword">typename</span> S>
<a name="l00069"></a><a class="code" href="class_e_subject.html#a3">00069</a> <span class="keywordtype">void</span> <a class="code" href="class_e_subject.html#a3">notify</a>(S* hint)
00070 {
00071 updateObservers(hint);
00072 }
00073
00074 <span class="keyword">private</span>:
00075 EObserverContainer m_observers;
00076
00077 <span class="keyword">template</span><<span class="keyword">typename</span> S>
00078 <span class="keywordtype">void</span> updateObservers(S* hint)
00079 {
00080 <span class="keywordflow">for</span> (<span class="keyword">typename</span> EObserverContainer::iterator i = m_observers.begin(); i != m_observers.end(); ++i)
00081 (*i)->updateObserver(<span class="keyword">this</span>, hint);
00082 }
00083 };
00084
00085 <span class="preprocessor">#endif // E_OBSERVER_H</span>
00086 <span class="preprocessor"></span>
</pre></div><hr size="1"><address style="align: right;"><small>Generated on Thu May 12 20:32:58 2005 for Math by
<a href="http://www.doxygen.org/index.html">
<img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.4.2 </small></address>
</body>
</html>
|
By viewing downloads associated with this article you agree to the Terms of Service and the article's licence.
If a file you wish to view isn't highlighted, and is a text file (not binary), please
let us know and we'll add colourisation support for it.
This article has no explicit license attached to it but may contain usage terms in the article text or the download files themselves. If in doubt please contact the author via the discussion board below.
A list of licenses authors might use can be found here
This member has not yet provided a Biography. Assume it's interesting and varied, and probably something to do with programming.
Submit an article or tip