<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE html> <html lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>gltrianglemesh.h Example File | Qt Widgets 5.12.6</title> <link rel="stylesheet" type="text/css" href="style/offline-simple.css" /> <script type="text/javascript"> document.getElementsByTagName("link").item(0).setAttribute("href", "style/offline.css"); // loading style sheet breaks anchors that were jumped to before // so force jumping to anchor again setTimeout(function() { var anchor = location.hash; // need to jump to different anchor first (e.g. none) location.hash = "#"; setTimeout(function() { location.hash = anchor; }, 0); }, 0); </script> </head> <body> <div class="header" id="qtdocheader"> <div class="main"> <div class="main-rounded"> <div class="navigationbar"> <table><tr> <td >Qt 5.12</td><td ><a href="qtwidgets-index.html">Qt Widgets</a></td><td ><a href="qtwidgets-graphicsview-boxes-example.html">Boxes</a></td><td >gltrianglemesh.h Example File</td></tr></table><table class="buildversion"><tr> <td id="buildversion" width="100%" align="right"><a href="qtwidgets-index.html">Qt 5.12.6 Reference Documentation</a></td> </tr></table> </div> </div> <div class="content"> <div class="line"> <div class="content mainContent"> <div class="sidebar"><div class="sidebar-content" id="sidebar-content"></div></div> <h1 class="title">gltrianglemesh.h Example File</h1> <span class="subtitle">graphicsview/boxes/gltrianglemesh.h</span> <!-- $$$graphicsview/boxes/gltrianglemesh.h-description --> <div class="descr"> <a name="details"></a> <pre class="cpp"> <span class="comment">/**************************************************************************** ** ** Copyright (C) 2016 The Qt Company Ltd. ** Contact: https://www.qt.io/licensing/ ** ** This file is part of the demonstration applications of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:BSD$ ** Commercial License Usage ** Licensees holding valid commercial Qt licenses may use this file in ** accordance with the commercial license agreement provided with the ** Software or, alternatively, in accordance with the terms contained in ** a written agreement between you and The Qt Company. For licensing terms ** and conditions see https://www.qt.io/terms-conditions. For further ** information use the contact form at https://www.qt.io/contact-us. ** ** BSD License Usage ** Alternatively, you may use this file under the terms of the BSD license ** as follows: ** ** "Redistribution and use in source and binary forms, with or without ** modification, are permitted provided that the following conditions are ** met: ** * Redistributions of source code must retain the above copyright ** notice, this list of conditions and the following disclaimer. ** * Redistributions in binary form must reproduce the above copyright ** notice, this list of conditions and the following disclaimer in ** the documentation and/or other materials provided with the ** distribution. ** * Neither the name of The Qt Company Ltd nor the names of its ** contributors may be used to endorse or promote products derived ** from this software without specific prior written permission. ** ** ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." ** ** $QT_END_LICENSE$ ** ****************************************************************************/</span> <span class="preprocessor">#ifndef GLTRIANGLEMESH_H</span> <span class="preprocessor">#define GLTRIANGLEMESH_H</span> <span class="comment">//#include <GL/glew.h></span> <span class="preprocessor">#include "glextensions.h"</span> <span class="preprocessor">#include <QtWidgets></span> <span class="preprocessor">#include <QtOpenGL></span> <span class="preprocessor">#include "glbuffers.h"</span> <span class="keyword">template</span><span class="operator"><</span><span class="keyword">class</span> TVertex<span class="operator">,</span> <span class="keyword">class</span> TIndex<span class="operator">></span> <span class="keyword">class</span> GLTriangleMesh { <span class="keyword">public</span>: GLTriangleMesh(<span class="type">int</span> vertexCount<span class="operator">,</span> <span class="type">int</span> indexCount) : m_vb(vertexCount)<span class="operator">,</span> m_ib(indexCount) { } <span class="keyword">virtual</span> <span class="operator">~</span>GLTriangleMesh() { } <span class="keyword">virtual</span> <span class="type">void</span> draw() { <span class="keyword">if</span> (failed()) <span class="keyword">return</span>; <span class="type">int</span> type <span class="operator">=</span> GL_UNSIGNED_INT; <span class="keyword">if</span> (<span class="keyword">sizeof</span>(TIndex) <span class="operator">=</span><span class="operator">=</span> <span class="keyword">sizeof</span>(<span class="type">char</span>)) type <span class="operator">=</span> GL_UNSIGNED_BYTE; <span class="keyword">if</span> (<span class="keyword">sizeof</span>(TIndex) <span class="operator">=</span><span class="operator">=</span> <span class="keyword">sizeof</span>(<span class="type">short</span>)) type <span class="operator">=</span> GL_UNSIGNED_SHORT; m_vb<span class="operator">.</span>bind(); m_ib<span class="operator">.</span>bind(); glDrawElements(GL_TRIANGLES<span class="operator">,</span> m_ib<span class="operator">.</span>length()<span class="operator">,</span> type<span class="operator">,</span> BUFFER_OFFSET(<span class="number">0</span>)); m_vb<span class="operator">.</span>unbind(); m_ib<span class="operator">.</span>unbind(); } bool failed() { <span class="keyword">return</span> m_vb<span class="operator">.</span>failed() <span class="operator">|</span><span class="operator">|</span> m_ib<span class="operator">.</span>failed(); } <span class="keyword">protected</span>: GLVertexBuffer<span class="operator"><</span>TVertex<span class="operator">></span> m_vb; GLIndexBuffer<span class="operator"><</span>TIndex<span class="operator">></span> m_ib; }; <span class="preprocessor">#endif</span> </pre> </div> <!-- @@@graphicsview/boxes/gltrianglemesh.h --> </div> </div> </div> </div> </div> <div class="footer"> <p> <acronym title="Copyright">©</acronym> 2019 The Qt Company Ltd. Documentation contributions included herein are the copyrights of their respective owners.<br/> The documentation provided herein is licensed under the terms of the <a href="http://www.gnu.org/licenses/fdl.html">GNU Free Documentation License version 1.3</a> as published by the Free Software Foundation.<br/> Qt and respective logos are trademarks of The Qt Company Ltd. in Finland and/or other countries worldwide. All other trademarks are property of their respective owners. </p> </div> </body> </html>