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<h1>OpenGLApp.cxx</h1><a href="OpenGLApp_8cxx.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/* </span>
<a name="l00002"></a>00002 <span class="comment"> *</span>
<a name="l00003"></a>00003 <span class="comment"> * $Id: OpenGLApp.cxx,v 1.5 2004/11/21 09:42:24 barrand Exp $</span>
<a name="l00004"></a>00004 <span class="comment"> *</span>
<a name="l00005"></a>00005 <span class="comment"> */</span>
<a name="l00006"></a>00006
<a name="l00007"></a>00007 <span class="comment">// this :</span>
<a name="l00008"></a>00008 <span class="preprocessor">#include "<a class="code" href="OpenGLApp_8h.html">OpenGLApp.h</a>"</span>
<a name="l00009"></a>00009
<a name="l00010"></a>00010 <span class="preprocessor">#include "<a class="code" href="OpenGLWindow_8h.html">OpenGLWindow.h</a>"</span>
<a name="l00011"></a>00011 <span class="preprocessor">#include "<a class="code" href="OpenGL_8h.html">OpenGL.h</a>"</span>
<a name="l00012"></a>00012
<a name="l00013"></a>00013 <span class="preprocessor">#include <iostream></span>
<a name="l00014"></a>00014
<a name="l00015"></a><a class="code" href="classOpenGLApp.html#ad6fde9cb9db50c1be81d41ec8c28c55e">00015</a> <a class="code" href="classOpenGLApp.html#ad6fde9cb9db50c1be81d41ec8c28c55e">OpenGLApp::OpenGLApp</a>()
<a name="l00016"></a>00016 :m_display(0)
<a name="l00017"></a>00017 ,m_colormap(0)
<a name="l00018"></a>00018 ,m_vinfo(0)
<a name="l00019"></a>00019 ,m_ctx(0)
<a name="l00020"></a>00020 ,m_privateColormap(true)
<a name="l00021"></a>00021 {
<a name="l00022"></a>00022 }
<a name="l00023"></a>00023
<a name="l00024"></a><a class="code" href="classOpenGLApp.html#aa8a56c9f8c249d57f9e0162093ed68a6">00024</a> <a class="code" href="classOpenGLApp.html#aa8a56c9f8c249d57f9e0162093ed68a6">OpenGLApp::~OpenGLApp</a> ()
<a name="l00025"></a>00025 {
<a name="l00026"></a>00026 }
<a name="l00027"></a>00027
<a name="l00028"></a><a class="code" href="classOpenGLApp.html#a92e803293d5d560a852b2756077c6a36">00028</a> <span class="keywordtype">bool</span> <a class="code" href="classOpenGLApp.html#a92e803293d5d560a852b2756077c6a36">OpenGLApp::initialize</a> ( <span class="keywordtype">int</span> <span class="comment">/*argc*/</span>, <span class="keywordtype">char</span>** <span class="comment">/*argv*/</span>)
<a name="l00029"></a>00029 {
<a name="l00030"></a>00030 <span class="keyword">static</span> <span class="keywordtype">int</span> attributeList[] = { GLX_RGBA,
<a name="l00031"></a>00031 GLX_RED_SIZE, 2,
<a name="l00032"></a>00032 GLX_GREEN_SIZE, 2,
<a name="l00033"></a>00033 GLX_BLUE_SIZE, 2,
<a name="l00034"></a>00034 GLX_DOUBLEBUFFER,
<a name="l00035"></a>00035 GLX_DEPTH_SIZE, 1,
<a name="l00036"></a>00036 None };
<a name="l00037"></a>00037 <a class="code" href="classOpenGLApp.html#a279ed3294e2c94b123a7956c431171be">m_display</a> = XOpenDisplay(NULL);
<a name="l00038"></a>00038 <span class="keywordflow">if</span>(!<a class="code" href="classOpenGLApp.html#a279ed3294e2c94b123a7956c431171be">m_display</a>) {
<a name="l00039"></a>00039 std::cout << <span class="stringliteral">"Can't open display."</span> << std::endl;
<a name="l00040"></a>00040 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00041"></a>00041 }
<a name="l00042"></a>00042
<a name="l00043"></a>00043 <a class="code" href="classOpenGLApp.html#aed7a56601f9d85b1e4bdc6759a40d3bc">m_vinfo</a> = glXChooseVisual(<a class="code" href="classOpenGLApp.html#a279ed3294e2c94b123a7956c431171be">m_display</a>,XDefaultScreen(<a class="code" href="classOpenGLApp.html#a279ed3294e2c94b123a7956c431171be">m_display</a>),attributeList);
<a name="l00044"></a>00044 <span class="keywordflow">if</span>(!<a class="code" href="classOpenGLApp.html#aed7a56601f9d85b1e4bdc6759a40d3bc">m_vinfo</a>) {
<a name="l00045"></a>00045 std::cout << <span class="stringliteral">"Can't choose a visual."</span> << std::endl;
<a name="l00046"></a>00046 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00047"></a>00047 }
<a name="l00048"></a>00048
<a name="l00049"></a>00049 <a class="code" href="classOpenGLApp.html#a9f2c21950f75f5aca5e2a9e71aa6eac9">m_ctx</a> = glXCreateContext(<a class="code" href="classOpenGLApp.html#a279ed3294e2c94b123a7956c431171be">m_display</a>,<a class="code" href="classOpenGLApp.html#aed7a56601f9d85b1e4bdc6759a40d3bc">m_vinfo</a>,NULL,GL_FALSE);
<a name="l00050"></a>00050 <span class="keywordflow">if</span>(!<a class="code" href="classOpenGLApp.html#a9f2c21950f75f5aca5e2a9e71aa6eac9">m_ctx</a>) {
<a name="l00051"></a>00051 std::cout << <span class="stringliteral">"Can't create a GLX context."</span> << std::endl;
<a name="l00052"></a>00052 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00053"></a>00053 }
<a name="l00054"></a>00054
<a name="l00055"></a>00055 <span class="keywordflow">if</span>(<a class="code" href="classOpenGLApp.html#aedd3d0c696f3bec8b0a5ea1c54118f55">m_privateColormap</a>) {
<a name="l00056"></a>00056 <span class="comment">/* It is better to create a colormap adapted to the visual.*/</span>
<a name="l00057"></a>00057 <a class="code" href="classOpenGLApp.html#ad35ef4754ac93d4fa9d69134da1b3d38">m_colormap</a> = XCreateColormap(<a class="code" href="classOpenGLApp.html#a279ed3294e2c94b123a7956c431171be">m_display</a>,XDefaultRootWindow(<a class="code" href="classOpenGLApp.html#a279ed3294e2c94b123a7956c431171be">m_display</a>),
<a name="l00058"></a>00058 <a class="code" href="classOpenGLApp.html#aed7a56601f9d85b1e4bdc6759a40d3bc">m_vinfo</a>->visual, AllocNone);
<a name="l00059"></a>00059 } <span class="keywordflow">else</span> {
<a name="l00060"></a>00060 <span class="comment">/* Default colormap does not work on an SGI with SGI libGL.*/</span>
<a name="l00061"></a>00061 <a class="code" href="classOpenGLApp.html#ad35ef4754ac93d4fa9d69134da1b3d38">m_colormap</a> = XDefaultColormap(<a class="code" href="classOpenGLApp.html#a279ed3294e2c94b123a7956c431171be">m_display</a>,XDefaultScreen(<a class="code" href="classOpenGLApp.html#a279ed3294e2c94b123a7956c431171be">m_display</a>));
<a name="l00062"></a>00062 }
<a name="l00063"></a>00063 <span class="keywordflow">if</span>(!<a class="code" href="classOpenGLApp.html#ad35ef4754ac93d4fa9d69134da1b3d38">m_colormap</a>) {
<a name="l00064"></a>00064 std::cout << <span class="stringliteral">"Can't create X colormap."</span> << std::endl;
<a name="l00065"></a>00065 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00066"></a>00066 }
<a name="l00067"></a>00067 <span class="comment">//std::cout << "X, OpenGL initialized." << std::endl;</span>
<a name="l00068"></a>00068 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00069"></a>00069 }
<a name="l00070"></a>00070
<a name="l00071"></a><a class="code" href="classOpenGLApp.html#a0a779c8ad978e3dd1debcc73bf705d20">00071</a> <span class="keywordtype">int</span> <a class="code" href="classOpenGLApp.html#a0a779c8ad978e3dd1debcc73bf705d20">OpenGLApp::exec</a>()
<a name="l00072"></a>00072 {
<a name="l00073"></a>00073 <span class="keywordflow">if</span>(!<a class="code" href="classOpenGLApp.html#a279ed3294e2c94b123a7956c431171be">m_display</a> || !<a class="code" href="classOpenGLApp.html#a9f2c21950f75f5aca5e2a9e71aa6eac9">m_ctx</a>) <span class="keywordflow">return</span> 0;
<a name="l00074"></a>00074 glXWaitX ();
<a name="l00075"></a>00075 <span class="keywordflow">while</span>(1) {
<a name="l00076"></a>00076 XEvent xevent;
<a name="l00077"></a>00077 <span class="keywordflow">if</span>(XPending(<a class="code" href="classOpenGLApp.html#a279ed3294e2c94b123a7956c431171be">m_display</a>)) {
<a name="l00078"></a>00078 XNextEvent (<a class="code" href="classOpenGLApp.html#a279ed3294e2c94b123a7956c431171be">m_display</a>,&xevent);
<a name="l00079"></a>00079 <span class="keywordflow">if</span>(xevent.type==ConfigureNotify) {
<a name="l00080"></a>00080 <a class="code" href="classOpenGLWindow.html" title="The window class using OpenGL.">OpenGLWindow</a>* view = <a class="code" href="classOpenGLApp.html#a69b882eaa6236c34b9fdda1dc7f3cb29">findView</a>(xevent.xconfigure.window);
<a name="l00081"></a>00081 view-><a class="code" href="classOpenGLWindow.html#a94fe4412f1302f5ff3027e2f9e43379c">resize</a>((<span class="keywordtype">int</span>)xevent.xconfigure.width,
<a name="l00082"></a>00082 (<span class="keywordtype">int</span>)xevent.xconfigure.height);
<a name="l00083"></a>00083 }
<a name="l00084"></a>00084 }
<a name="l00085"></a>00085 }
<a name="l00086"></a>00086 <span class="keywordflow">return</span> 0;
<a name="l00087"></a>00087 }
<a name="l00088"></a>00088
<a name="l00089"></a><a class="code" href="classOpenGLApp.html#ac093a77c3fce11f9b1070c17b281b19d">00089</a> Display* <a class="code" href="classOpenGLApp.html#ac093a77c3fce11f9b1070c17b281b19d">OpenGLApp::getXDisplay</a>() { <span class="keywordflow">return</span> <a class="code" href="classOpenGLApp.html#a279ed3294e2c94b123a7956c431171be">m_display</a>; }
<a name="l00090"></a><a class="code" href="classOpenGLApp.html#aa6705952ca3d370c10e1f8b5c50f59fb">00090</a> Colormap <a class="code" href="classOpenGLApp.html#aa6705952ca3d370c10e1f8b5c50f59fb">OpenGLApp::getXColormap</a>() { <span class="keywordflow">return</span> <a class="code" href="classOpenGLApp.html#ad35ef4754ac93d4fa9d69134da1b3d38">m_colormap</a>; }
<a name="l00091"></a><a class="code" href="classOpenGLApp.html#a540383e63b6ed3f848a9116439d82094">00091</a> XVisualInfo* <a class="code" href="classOpenGLApp.html#a540383e63b6ed3f848a9116439d82094">OpenGLApp::getXVisualInfo</a>() { <span class="keywordflow">return</span> <a class="code" href="classOpenGLApp.html#aed7a56601f9d85b1e4bdc6759a40d3bc">m_vinfo</a>; }
<a name="l00092"></a><a class="code" href="classOpenGLApp.html#af0ee33290d83a7d5e76c3c1c7e8745f7">00092</a> GLXContext <a class="code" href="classOpenGLApp.html#af0ee33290d83a7d5e76c3c1c7e8745f7">OpenGLApp::getGLXContext</a>() { <span class="keywordflow">return</span> <a class="code" href="classOpenGLApp.html#a9f2c21950f75f5aca5e2a9e71aa6eac9">m_ctx</a>; }
<a name="l00093"></a>00093
<a name="l00094"></a><a class="code" href="classOpenGLApp.html#a69b882eaa6236c34b9fdda1dc7f3cb29">00094</a> <a class="code" href="classOpenGLWindow.html" title="The window class using OpenGL.">OpenGLWindow</a>* <a class="code" href="classOpenGLApp.html#a69b882eaa6236c34b9fdda1dc7f3cb29">OpenGLApp::findView</a>(Window aWindow)<span class="keyword"> const </span>{
<a name="l00095"></a>00095 <span class="keywordflow">for</span>(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> index=0;index<<a class="code" href="classOpenGLApp.html#aae253de216c7e50e505345e731762a6d">fViews</a>.size();index++){
<a name="l00096"></a>00096 <a class="code" href="classOpenGLWindow.html" title="The window class using OpenGL.">OpenGLWindow</a>* view = <a class="code" href="classOpenGLApp.html#aae253de216c7e50e505345e731762a6d">fViews</a>[index];
<a name="l00097"></a>00097 <span class="keywordflow">if</span>(aWindow==view-><a class="code" href="classOpenGLWindow.html#ad745e70aa05f371366f3c2c05eff6199">window</a>()) <span class="keywordflow">return</span> view;
<a name="l00098"></a>00098 }
<a name="l00099"></a>00099 <span class="keywordflow">return</span> 0;
<a name="l00100"></a>00100 }
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