wg__application_8cpp-source.html

一个小巧的嵌入式图形系统wGUI, 可以用VC编译

00285 }
00286 
00287 
<a name="l00288"></a><a class="code" href="classwGui_1_1CApplication.html#a13">00288</a> <a class="code" href="classwGui_1_1CFontEngine.html">CFontEngine</a>* CApplication::GetFontEngine(std::string sFontFileName, <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> iFontSize)
00289 {
00290      <span class="comment">// First search to see if the requested font engine already exists</span>
00291      t_FontEngineMap::iterator iterFontEngine = <a class="code" href="classwGui_1_1CApplication.html#n8">m_FontEngines</a>.find(std::make_pair(sFontFileName, iFontSize));
00292      <a class="code" href="classwGui_1_1CFontEngine.html">CFontEngine</a>* pFontEngine = 0;
00293 
00294      <span class="keywordflow">if</span> (iterFontEngine == <a class="code" href="classwGui_1_1CApplication.html#n8">m_FontEngines</a>.end())
00295      {
00296           <span class="comment">// Requested font engine doesn't exist, so create one and add it to the map</span>
00297           <span class="keywordflow">try</span>
00298           {
00299                <span class="keywordflow">if</span> (sFontFileName.find_first_of(<span class="stringliteral">"\\/"</span>) != std::string::npos)
00300                {
00301                     <span class="comment">// if the Font File name that was passed in includes a path, just check there</span>
00302                     std::ifstream FileTest(sFontFileName.c_str());
00303                     <span class="keywordtype">bool</span> bFileExists = FileTest.is_open();
00304                     FileTest.close();
00305                     <span class="keywordflow">if</span> (bFileExists)
00306                     {
00307                          pFontEngine = <span class="keyword">new</span> <a class="code" href="classwGui_1_1CFontEngine.html">CFontEngine</a>(sFontFileName, iFontSize);
00308                     }
00309                }
00310                <span class="keywordflow">else</span>
00311                {
00312                     <span class="comment">// otherwise check the Font Path from the global config</span>
00313                     std::list&lt;std::string&gt; FontPaths = stdex::DetokenizeString(<a class="code" href="classwGui_1_1CApplication.html#n15">m_GlobalConfig</a>.<a class="code" href="classwGui_1_1CConfigStore.html#a2">GetStringEntry</a>(<span class="stringliteral">"FONTPATH"</span>).second, <span class="stringliteral">";"</span>);
00314                     <span class="keywordflow">for</span>(std::list&lt;std::string&gt;::iterator iter = FontPaths.begin(); iter != FontPaths.end(); ++iter)
00315                     {
00316                          std::string sFullPath = *iter;
00317                          <span class="keywordflow">if</span> (!iter-&gt;empty()  &amp;&amp; (*iter)[iter-&gt;length()] != <span class="charliteral">'\\'</span> &amp;&amp; (*iter)[iter-&gt;length()] != <span class="charliteral">'/'</span>)
00318                          {
00319                               sFullPath += <span class="stringliteral">"/"</span>;
00320                          }
00321                          sFullPath += sFontFileName;
00322                          std::ifstream FileTest(sFullPath.c_str());
00323                          <span class="keywordtype">bool</span> bFileExists = FileTest.is_open();
00324                          FileTest.close();
00325                          <span class="keywordflow">if</span> (bFileExists)
00326                          {
00327                               pFontEngine = <span class="keyword">new</span> <a class="code" href="classwGui_1_1CFontEngine.html">CFontEngine</a>(sFullPath, iFontSize);
00328                          }
00329                     }
00330                }
00331                <span class="keywordflow">if</span> (pFontEngine)
00332                {
00333                     <a class="code" href="classwGui_1_1CApplication.html#n8">m_FontEngines</a>.insert(std::make_pair(std::make_pair(sFontFileName, iFontSize), pFontEngine));
00334                }
00335           }
00336           <span class="keywordflow">catch</span> (<a class="code" href="classwGui_1_1Wg__Ex__FreeType.html">Wg_Ex_FreeType</a>&amp; DEBUG_ONLY(e))
00337           {
00338                <span class="keywordflow">if</span> (!<a class="code" href="classwGui_1_1CApplication.html#n10">m_bHandleExceptionsInternally</a>)
00339                {
00340                     <span class="keywordflow">throw</span>;
00341                }
00342                Trace(<span class="stringliteral">"CApplication::GetFontEngine - Exception thrown while creating Font Engine : "</span> + e.std_what());
00343           }
00344      }
00345      <span class="keywordflow">else</span>
00346      {
00347           pFontEngine = iterFontEngine-&gt;second;
00348      }
00349 
00350      <span class="keywordflow">return</span> pFontEngine;
00351 }
00352 
00353 
<a name="l00354"></a><a class="code" href="classwGui_1_1CApplication.html#a16">00354</a> <span class="keywordtype">void</span> CApplication::EnableResourcePool(<span class="keywordtype">bool</span> bEnable)
00355 {
00356      <a class="code" href="classwGui_1_1CApplication.html#n11">m_bResourcePoolEnabled</a> = bEnable;
00357      <span class="keywordflow">if</span> (bEnable == <span class="keyword">false</span>)
00358      {
00359           <a class="code" href="classwGui_1_1CApplication.html#n12">m_ResourceHandlePool</a>.clear();
00360      }
00361 }
00362 
00363 
<a name="l00364"></a><a class="code" href="classwGui_1_1CApplication.html#a17">00364</a> <span class="keywordtype">bool</span> CApplication::AddToResourcePool(<a class="code" href="classwGui_1_1CResourceHandle.html">CResourceHandle</a>&amp; ResourceHandle)
00365 {
00366      <span class="keywordtype">bool</span> bSuccess = <span class="keyword">false</span>;
00367 
00368      <span class="keywordflow">if</span> (m_bResourcePoolEnabled)
00369      {
00370           <a class="code" href="classwGui_1_1CApplication.html#n12">m_ResourceHandlePool</a>.push_back(ResourceHandle);
00371      }
00372 
00373      <span class="keywordflow">return</span> bSuccess;
00374 }
00375 
00376 
<a name="l00377"></a><a class="code" href="classwGui_1_1CApplication.html#a18">00377</a> <span class="keywordtype">void</span> CApplication::SetMouseCursor(<a class="code" href="classwGui_1_1CCursorResourceHandle.html">CCursorResourceHandle</a>* pCursorResourceHandle)
00378 {
00379      <span class="comment">// The auto pointer is used to make sure that the cursor handle is valid until we're done using the cursor</span>
00380      <span class="keywordflow">if</span> (pCursorResourceHandle &amp;&amp; pCursorResourceHandle != <a class="code" href="classwGui_1_1CApplication.html#n13">m_pCurrentCursorResourceHandle</a>.get())
00381      {
00382           std::auto_ptr&lt;CCursorResourceHandle&gt; pNewCursorResourceHandle(<span class="keyword">new</span> <a class="code" href="classwGui_1_1CCursorResourceHandle.html">CCursorResourceHandle</a>(*pCursorResourceHandle));
00383           <a class="code" href="classwGui_1_1CApplication.html#n13">m_pCurrentCursorResourceHandle</a> = pNewCursorResourceHandle;
00384           SDL_SetCursor(<a class="code" href="classwGui_1_1CApplication.html#n13">m_pCurrentCursorResourceHandle</a>-&gt;Cursor());
00385      }
00386      <span class="keywordflow">else</span>
00387      {
00388           <span class="keywordflow">if</span>( <a class="code" href="classwGui_1_1CApplication.html#n13">m_pCurrentCursorResourceHandle</a>.get() )
00389           {
00390 <span class="preprocessor">               #ifdef MSVC6  // VC6's auto pointers are really broken</span>
00391 <span class="preprocessor"></span>                    <span class="keyword">delete</span> <a class="code" href="classwGui_1_1CApplication.html#n13">m_pCurrentCursorResourceHandle</a>.release();
00392                     <a class="code" href="classwGui_1_1CApplication.html#n13">m_pCurrentCursorResourceHandle</a> = std::auto_ptr&lt;CCursorResourceHandle&gt;(0);
00393 <span class="preprocessor">               #else</span>
00394 <span class="preprocessor"></span>                    <a class="code" href="classwGui_1_1CApplication.html#n13">m_pCurrentCursorResourceHandle</a>.reset(0);
00395 <span class="preprocessor">               #endif // MSVC6</span>
00396 <span class="preprocessor"></span>               SDL_SetCursor(<a class="code" href="classwGui_1_1CApplication.html#n14">m_pSystemDefaultCursor</a>);
00397           }
00398      }
00399 }
00400 
00401 
<a name="l00402"></a><a class="code" href="classwGui_1_1CApplication.html#a20">00402</a> <span class="keywordtype">bool</span> CApplication::HandleMessage(<a class="code" href="classwGui_1_1CMessage.html">CMessage</a>* pMessage)
00403 {
00404      <span class="keywordtype">bool</span> bHandled = <span class="keyword">false</span>;
00405 
00406      <span class="keywordflow">if</span> (pMessage)
00407      {
00408           <span class="keywordflow">switch</span> (pMessage-&gt;<a class="code" href="classwGui_1_1CMessage.html#a2">MessageType</a>())
00409           {
00410           <span class="keywordflow">case</span> CMessage::APP_EXIT :
00411                <a class="code" href="classwGui_1_1CApplication.html#a12">ApplicationExit</a>();
00412                bHandled = <span class="keyword">true</span>;
00413                <span class="keywordflow">break</span>;
00414           <span class="keywordflow">default</span>:
00415                <span class="keywordflow">break</span>;
00416           }
00417      }
00418 
00419      <span class="keywordflow">return</span> bHandled;
00420 }
00421 
00422 }
</pre></div><hr><address style="align: right;"><small>Generated on Sat Oct 25 12:43:21 2003 for wGui by
<a href="http://www.doxygen.org/index.html">
<img src="doxygen.png" alt="doxygen" align="middle" border=0 
width=110 height=53></a>1.2.18 </small></address>
</body>
</html>