source: OGRE/trunk/ogrenew/Docs/api/html/OgreSingleton_8h-source.html @ 657

Revision 657, 8.6 KB checked in by mattausch, 18 years ago (diff)

added ogre dependencies and patched ogre sources
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10<h1>OgreSingleton.h</h1><a href="OgreSingleton_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001 <span class="comment">/*</span>
1100002 <span class="comment">-----------------------------------------------------------------------------</span>
1200003 <span class="comment">This source file is part of OGRE</span>
1300004 <span class="comment">    (Object-oriented Graphics Rendering Engine)</span>
1400005 <span class="comment">For the latest info, see http://www.ogre3d.org/</span>
1500006 <span class="comment"></span>
1600007 <span class="comment">Copyright (c) 2000-2005 The OGRE Team</span>
1700008 <span class="comment">Also see acknowledgements in Readme.html</span>
1800009 <span class="comment"></span>
1900010 <span class="comment">This program is free software; you can redistribute it and/or modify it under</span>
2000011 <span class="comment">the terms of the GNU Lesser General Public License as published by the Free Software</span>
2100012 <span class="comment">Foundation; either version 2 of the License, or (at your option) any later</span>
2200013 <span class="comment">version.</span>
2300014 <span class="comment"></span>
2400015 <span class="comment">This program is distributed in the hope that it will be useful, but WITHOUT</span>
2500016 <span class="comment">ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS</span>
2600017 <span class="comment">FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.</span>
2700018 <span class="comment"></span>
2800019 <span class="comment">You should have received a copy of the GNU Lesser General Public License along with</span>
2900020 <span class="comment">this program; if not, write to the Free Software Foundation, Inc., 59 Temple</span>
3000021 <span class="comment">Place - Suite 330, Boston, MA 02111-1307, USA, or go to</span>
3100022 <span class="comment">http://www.gnu.org/copyleft/lesser.txt.</span>
3200023 <span class="comment">-----------------------------------------------------------------------------</span>
3300024 <span class="comment">*/</span>
3400025 <span class="comment">/* Original version Copyright (C) Scott Bilas, 2000.</span>
3500026 <span class="comment"> * All rights reserved worldwide.</span>
3600027 <span class="comment"> *</span>
3700028 <span class="comment"> * This software is provided "as is" without express or implied</span>
3800029 <span class="comment"> * warranties. You may freely copy and compile this source into</span>
3900030 <span class="comment"> * applications you distribute provided that the copyright text</span>
4000031 <span class="comment"> * below is included in the resulting source code, for example:</span>
4100032 <span class="comment"> * "Portions Copyright (C) Scott Bilas, 2000"</span>
4200033 <span class="comment"> */</span>
4300034 <span class="preprocessor">#ifndef _SINGLETON_H__</span>
4400035 <span class="preprocessor"></span><span class="preprocessor">#define _SINGLETON_H__</span>
4500036 <span class="preprocessor"></span>
4600037 <span class="comment">// Added by Steve Streeting for Ogre</span>
4700038 <span class="preprocessor">#include "<a class="code" href="OgrePrerequisites_8h.html">OgrePrerequisites.h</a>"</span>
4800039
4900040 <span class="preprocessor">#if OGRE_COMPILER == OGRE_COMPILER_MSVC</span>
5000041 <span class="preprocessor"></span><span class="comment">// Turn off warnings generated by this singleton implementation</span>
5100042 <span class="preprocessor">#   pragma warning (disable : 4311)</span>
5200043 <span class="preprocessor"></span><span class="preprocessor">#   pragma warning (disable : 4312)</span>
5300044 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
5400045 <span class="preprocessor"></span>
5500046 <span class="keyword">namespace </span>Ogre {
5600047 <span class="comment">// End SJS additions</span>
57<a name="l00050"></a><a class="code" href="classOgre_1_1Singleton.html">00050</a> <span class="comment"></span>    <span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt; <span class="keyword">class </span><a class="code" href="classOgre_1_1Singleton.html">Singleton</a>
5800051     {
5900052     <span class="keyword">protected</span>:
6000053
61<a name="l00054"></a><a class="code" href="classOgre_1_1Singleton.html#Ogre_1_1Singletont0">00054</a>         <span class="keyword">static</span> T* ms_Singleton;
6200055
6300056     <span class="keyword">public</span>:
64<a name="l00057"></a><a class="code" href="classOgre_1_1Singleton.html#Ogre_1_1Singletona0">00057</a>         <a class="code" href="classOgre_1_1Singleton.html#Ogre_1_1Singletona0">Singleton</a>( <span class="keywordtype">void</span> )
6500058         {
6600059             assert( !ms_Singleton );
6700060 <span class="preprocessor">#if defined( _MSC_VER ) &amp;&amp; _MSC_VER &lt; 1200   </span>
6800061 <span class="preprocessor"></span>            <span class="keywordtype">int</span> offset = (<span class="keywordtype">int</span>)(T*)1 - (<span class="keywordtype">int</span>)(Singleton &lt;T&gt;*)(T*)1;
6900062             ms_Singleton = (T*)((<span class="keywordtype">int</span>)<span class="keyword">this</span> + offset);
7000063 <span class="preprocessor">#else</span>
7100064 <span class="preprocessor"></span>        ms_Singleton = static_cast&lt; T* &gt;( <span class="keyword">this</span> );
7200065 <span class="preprocessor">#endif</span>
7300066 <span class="preprocessor"></span>        }
74<a name="l00067"></a><a class="code" href="classOgre_1_1Singleton.html#Ogre_1_1Singletona1">00067</a>         <a class="code" href="classOgre_1_1Singleton.html#Ogre_1_1Singletona1">~Singleton</a>( <span class="keywordtype">void</span> )
7500068             {  assert( ms_Singleton );  ms_Singleton = 0;  }
76<a name="l00069"></a><a class="code" href="classOgre_1_1Singleton.html#Ogre_1_1Singletone0">00069</a>         <span class="keyword">static</span> T&amp; <a class="code" href="classOgre_1_1Singleton.html#Ogre_1_1Singletone0">getSingleton</a>( <span class="keywordtype">void</span> )
7700070         {   assert( ms_Singleton );  <span class="keywordflow">return</span> ( *ms_Singleton ); }
78<a name="l00071"></a><a class="code" href="classOgre_1_1Singleton.html#Ogre_1_1Singletone1">00071</a>         <span class="keyword">static</span> T* <a class="code" href="classOgre_1_1Singleton.html#Ogre_1_1Singletone1">getSingletonPtr</a>( <span class="keywordtype">void</span> )
7900072         { <span class="keywordflow">return</span> ms_Singleton; }
8000073     };
8100074 }
8200075 <span class="preprocessor">#endif</span>
83</pre></div><hr>
84<p>
85Copyright &copy; 2000-2005 by The OGRE Team<br />
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94
95Last modified Sun Feb 12 12:59:52 2006
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