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Breadcrumbs go here --> </ul> </div> <div class="toolbuttons toolblock"> <ul> <li id="smallA" class="t_button">A</li> <li id="medA" class="t_button active">A</li> <li id="bigA" class="t_button">A</li> <li id="print" class="t_button"><a href="javascript:this.print();"> <span>Print</span></a></li> </ul> </div> </div> <div class="content mainContent"> <h1 class="title">cube.cpp Example File</h1> <span class="small-subtitle">opengl/pbuffers/cube.cpp</span> <!-- $$$opengl/pbuffers/cube.cpp-description --> <div class="descr"> <a name="details"></a> <pre class="cpp"> <span class="comment">/**************************************************************************** ** ** Copyright (C) 2015 The Qt Company Ltd. ** Contact: http://www.qt.io/licensing/ ** ** This file is part of the examples of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:BSD$ ** 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">#include "cube.h"</span> <span class="preprocessor">#include "glwidget.h"</span> <span class="preprocessor">#include <QtGui/QImage></span> <span class="preprocessor">#include <QtCore/QPropertyAnimation></span> <span class="keyword">static</span> <span class="keyword">const</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> FACE_SIZE <span class="operator">=</span> <span class="number">0.4</span>; <span class="keyword">static</span> <span class="keyword">const</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> speeds<span class="operator">[</span><span class="operator">]</span> <span class="operator">=</span> { <span class="number">3.8f</span><span class="operator">,</span> <span class="number">4.4f</span><span class="operator">,</span> <span class="number">5.6f</span> }; <span class="keyword">static</span> <span class="keyword">const</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> amplitudes<span class="operator">[</span><span class="operator">]</span> <span class="operator">=</span> { <span class="number">2.0f</span><span class="operator">,</span> <span class="number">2.5f</span><span class="operator">,</span> <span class="number">3.0f</span> }; <span class="keyword">static</span> <span class="keyword">inline</span> <span class="type">void</span> qSetColor(<span class="type">float</span> colorVec<span class="operator">[</span><span class="operator">]</span><span class="operator">,</span> <span class="type"><a href="qcolor.html">QColor</a></span> c) { colorVec<span class="operator">[</span><span class="number">0</span><span class="operator">]</span> <span class="operator">=</span> c<span class="operator">.</span>redF(); colorVec<span class="operator">[</span><span class="number">1</span><span class="operator">]</span> <span class="operator">=</span> c<span class="operator">.</span>greenF(); colorVec<span class="operator">[</span><span class="number">2</span><span class="operator">]</span> <span class="operator">=</span> c<span class="operator">.</span>blueF(); colorVec<span class="operator">[</span><span class="number">3</span><span class="operator">]</span> <span class="operator">=</span> c<span class="operator">.</span>alphaF(); } <span class="type">int</span> Geometry<span class="operator">::</span>append(<span class="keyword">const</span> QVector3D <span class="operator">&</span>a<span class="operator">,</span> <span class="keyword">const</span> QVector3D <span class="operator">&</span>n<span class="operator">,</span> <span class="keyword">const</span> QVector2D <span class="operator">&</span>t) { <span class="type">int</span> v <span class="operator">=</span> vertices<span class="operator">.</span>count(); vertices<span class="operator">.</span>append(a); normals<span class="operator">.</span>append(n); texCoords<span class="operator">.</span>append(t); faces<span class="operator">.</span>append(v); colors<span class="operator">.</span>append(QVector4D(<span class="number">0.6f</span><span class="operator">,</span> <span class="number">0.6f</span><span class="operator">,</span> <span class="number">0.6f</span><span class="operator">,</span> <span class="number">1.0f</span>)); <span class="keyword">return</span> v; } <span class="type">void</span> Geometry<span class="operator">::</span>addQuad(<span class="keyword">const</span> QVector3D <span class="operator">&</span>a<span class="operator">,</span> <span class="keyword">const</span> QVector3D <span class="operator">&</span>b<span class="operator">,</span> <span class="keyword">const</span> QVector3D <span class="operator">&</span>c<span class="operator">,</span> <span class="keyword">const</span> QVector3D <span class="operator">&</span>d<span class="operator">,</span> <span class="keyword">const</span> <span class="type"><a href="qvector.html">QVector</a></span><span class="operator"><</span>QVector2D<span class="operator">></span> <span class="operator">&</span>tex) { QVector3D norm <span class="operator">=</span> QVector3D<span class="operator">::</span>normal(a<span class="operator">,</span> b<span class="operator">,</span> c); <span class="comment">// append first triangle</span> <span class="type">int</span> aref <span class="operator">=</span> append(a<span class="operator">,</span> norm<span class="operator">,</span> tex<span class="operator">[</span><span class="number">0</span><span class="operator">]</span>); append(b<span class="operator">,</span> norm<span class="operator">,</span> tex<span class="operator">[</span><span class="number">1</span><span class="operator">]</span>); <span class="type">int</span> cref <span class="operator">=</span> append(c<span class="operator">,</span> norm<span class="operator">,</span> tex<span class="operator">[</span><span class="number">2</span><span class="operator">]</span>); <span class="comment">// append second triangle</span> faces<span class="operator">.</span>append(aref); faces<span class="operator">.</span>append(cref); append(d<span class="operator">,</span> norm<span class="operator">,</span> tex<span class="operator">[</span><span class="number">3</span><span class="operator">]</span>); } <span class="type">void</span> Geometry<span class="operator">::</span>loadArrays() <span class="keyword">const</span> { glEnableClientState(GL_VERTEX_ARRAY); glEnableClientState(GL_NORMAL_ARRAY); glEnableClientState(GL_TEXTURE_COORD_ARRAY); glEnableClientState(GL_COLOR_ARRAY); glVertexPointer(<span class="number">3</span><span class="operator">,</span> GL_FLOAT<span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> vertices<span class="operator">.</span>constData()); glNormalPointer(GL_FLOAT<span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> normals<span class="operator">.</span>constData()); glTexCoordPointer(<span class="number">2</span><span class="operator">,</span> GL_FLOAT<span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> texCoords<span class="operator">.</span>constData()); glColorPointer(<span class="number">4</span><span class="operator">,</span> GL_FLOAT<span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> colors<span class="operator">.</span>constData()); } <span class="type">void</span> Geometry<span class="operator">::</span>setColors(<span class="type">int</span> start<span class="operator">,</span> GLfloat colorArray<span class="operator">[</span><span class="number">4</span><span class="operator">]</span><span class="operator">[</span><span class="number">4</span><span class="operator">]</span>) { <span class="type">int</span> off <span class="operator">=</span> faces<span class="operator">[</span>start<span class="operator">]</span>; <span class="keyword">for</span> (<span class="type">int</span> i <span class="operator">=</span> <span class="number">0</span>; i <span class="operator"><</span> <span class="number">4</span>; <span class="operator">+</span><span class="operator">+</span>i) colors<span class="operator">[</span>i <span class="operator">+</span> off<span class="operator">]</span> <span class="operator">=</span> QVector4D(colorArray<span class="operator">[</span>i<span class="operator">]</span><span class="operator">[</span><span class="number">0</span><span class="operator">]</span><span class="operator">,</span> colorArray<span class="operator">[</span>i<span class="operator">]</span><span class="operator">[</span><span class="number">1</span><span class="operator">]</span><span class="operator">,</span> colorArray<span class="operator">[</span>i<span class="operator">]</span><span class="operator">[</span><span class="number">2</span><span class="operator">]</span><span class="operator">,</span> colorArray<span class="operator">[</span>i<span class="operator">]</span><span class="operator">[</span><span class="number">3</span><span class="operator">]</span>); } Tile<span class="operator">::</span>Tile(<span class="keyword">const</span> QVector3D <span class="operator">&</span>loc) : location(loc) <span class="operator">,</span> start(<span class="number">0</span>) <span class="operator">,</span> count(<span class="number">0</span>) <span class="operator">,</span> useFlatColor(<span class="keyword">false</span>) <span class="operator">,</span> geom(<span class="number">0</span>) { qSetColor(faceColor<span class="operator">,</span> <span class="type"><a href="qcolor.html">QColor</a></span>(<span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>darkGray)); } <span class="type">void</span> Tile<span class="operator">::</span>setColors(GLfloat colorArray<span class="operator">[</span><span class="number">4</span><span class="operator">]</span><span class="operator">[</span><span class="number">4</span><span class="operator">]</span>) { useFlatColor <span class="operator">=</span> <span class="keyword">true</span>; geom<span class="operator">-</span><span class="operator">></span>setColors(start<span class="operator">,</span> colorArray); } <span class="keyword">static</span> <span class="keyword">inline</span> <span class="type">void</span> qMultMatrix(<span class="keyword">const</span> QMatrix4x4 <span class="operator">&</span>mat) { <span class="keyword">if</span> (<span class="keyword">sizeof</span>(<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span>) <span class="operator">=</span><span class="operator">=</span> <span class="keyword">sizeof</span>(GLfloat)) glMultMatrixf((GLfloat<span class="operator">*</span>)mat<span class="operator">.</span>constData()); <span class="preprocessor">#ifndef QT_OPENGL_ES</span> <span class="keyword">else</span> <span class="keyword">if</span> (<span class="keyword">sizeof</span>(<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span>) <span class="operator">=</span><span class="operator">=</span> <span class="keyword">sizeof</span>(GLdouble)) glMultMatrixd((GLdouble<span class="operator">*</span>)mat<span class="operator">.</span>constData()); <span class="preprocessor">#endif</span> <span class="keyword">else</span> { GLfloat fmat<span class="operator">[</span><span class="number">16</span><span class="operator">]</span>; <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> <span class="keyword">const</span> <span class="operator">*</span>r <span class="operator">=</span> mat<span class="operator">.</span>constData(); <span class="keyword">for</span> (<span class="type">int</span> i <span class="operator">=</span> <span class="number">0</span>; i <span class="operator"><</span> <span class="number">16</span>; <span class="operator">+</span><span class="operator">+</span>i) fmat<span class="operator">[</span>i<span class="operator">]</span> <span class="operator">=</span> r<span class="operator">[</span>i<span class="operator">]</span>; glMultMatrixf(fmat); } } <span class="type">void</span> Tile<span class="operator">::</span>draw() <span class="keyword">const</span> { QMatrix4x4 mat; mat<span class="operator">.</span>translate(location); mat<span class="operator">.</span>rotate(orientation); glMatrixMode(GL_MODELVIEW); glPushMatrix(); qMultMatrix(mat); glMaterialfv(GL_FRONT_AND_BACK<span class="operator">,</span> GL_AMBIENT_AND_DIFFUSE<span class="operator">,</span> faceColor); glDrawElements(GL_TRIANGLES<span class="operator">,</span> count<span class="operator">,</span> GL_UNSIGNED_SHORT<span class="operator">,</span> geom<span class="operator">-</span><span class="operator">></span>indices() <span class="operator">+</span> start); glPopMatrix(); } TileBuilder<span class="operator">::</span>TileBuilder(Geometry <span class="operator">*</span>g<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> depth<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> size) : verts(<span class="number">4</span>) <span class="operator">,</span> tex(<span class="number">4</span>) <span class="operator">,</span> start(g<span class="operator">-</span><span class="operator">></span>count()) <span class="operator">,</span> count(<span class="number">0</span>) <span class="operator">,</span> geom(g) { <span class="comment">// front face - make a square with bottom-left at origin</span> verts<span class="operator">[</span>br<span class="operator">]</span><span class="operator">.</span>setX(size); verts<span class="operator">[</span>tr<span class="operator">]</span><span class="operator">.</span>setX(size); verts<span class="operator">[</span>tr<span class="operator">]</span><span class="operator">.</span>setY(size); verts<span class="operator">[</span>tl<span class="operator">]</span><span class="operator">.</span>setY(size); <span class="comment">// these vert numbers are good for the tex-coords</span> <span class="keyword">for</span> (<span class="type">int</span> i <span class="operator">=</span> <span class="number">0</span>; i <span class="operator"><</span> <span class="number">4</span>; <span class="operator">+</span><span class="operator">+</span>i) tex<span class="operator">[</span>i<span class="operator">]</span> <span class="operator">=</span> verts<span class="operator">[</span>i<span class="operator">]</span><span class="operator">.</span>toVector2D(); <span class="comment">// now move verts half cube width across so cube is centered on origin</span> <span class="keyword">for</span> (<span class="type">int</span> i <span class="operator">=</span> <span class="number">0</span>; i <span class="operator"><</span> <span class="number">4</span>; <span class="operator">+</span><span class="operator">+</span>i) verts<span class="operator">[</span>i<span class="operator">]</span> <span class="operator">-</span><span class="operator">=</span> QVector3D(size <span class="operator">/</span> <span class="number">2.0f</span><span class="operator">,</span> size <span class="operator">/</span> <span class="number">2.0f</span><span class="operator">,</span> <span class="operator">-</span>depth); <span class="comment">// add the front face</span> g<span class="operator">-</span><span class="operator">></span>addQuad(verts<span class="operator">[</span>bl<span class="operator">]</span><span class="operator">,</span> verts<span class="operator">[</span>br<span class="operator">]</span><span class="operator">,</span> verts<span class="operator">[</span>tr<span class="operator">]</span><span class="operator">,</span> verts<span class="operator">[</span>tl<span class="operator">]</span><span class="operator">,</span> tex); count <span class="operator">=</span> g<span class="operator">-</span><span class="operator">></span>count() <span class="operator">-</span> start; } <span class="type">void</span> TileBuilder<span class="operator">::</span>initialize(Tile <span class="operator">*</span>tile) <span class="keyword">const</span> { tile<span class="operator">-</span><span class="operator">></span>start <span class="operator">=</span> start; tile<span class="operator">-</span><span class="operator">></span>count <span class="operator">=</span> count; tile<span class="operator">-</span><span class="operator">></span>geom <span class="operator">=</span> geom; qSetColor(tile<span class="operator">-</span><span class="operator">></span>faceColor<span class="operator">,</span> color); } Tile <span class="operator">*</span>TileBuilder<span class="operator">::</span>newTile(<span class="keyword">const</span> QVector3D <span class="operator">&</span>loc) <span class="keyword">const</span> { Tile <span class="operator">*</span>tile <span class="operator">=</span> <span class="keyword">new</span> Tile(loc); initialize(tile); <span class="keyword">return</span> tile; } Cube<span class="operator">::</span>Cube(<span class="keyword">const</span> QVector3D <span class="operator">&</span>loc) : Tile(loc) <span class="operator">,</span> rot(<span class="number">0.0f</span>) <span class="operator">,</span> r(<span class="number">0</span>) <span class="operator">,</span> animGroup(<span class="number">0</span>) { } Cube<span class="operator">::</span><span class="operator">~</span>Cube() { } <span class="type">void</span> Cube<span class="operator">::</span>setAltitude(<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> a) { <span class="keyword">if</span> (location<span class="operator">.</span>y() <span class="operator">!</span><span class="operator">=</span> a) { location<span class="operator">.</span>setY(a); <span class="keyword">emit</span> changed(); } } <span class="type">void</span> Cube<span class="operator">::</span>setRange(<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> r) { <span class="keyword">if</span> (location<span class="operator">.</span>x() <span class="operator">!</span><span class="operator">=</span> r) { location<span class="operator">.</span>setX(r); <span class="keyword">emit</span> changed(); } } <span class="type">void</span> Cube<span class="operator">::</span>setRotation(<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> r) { <span class="keyword">if</span> (r <span class="operator">!</span><span class="operator">=</span> rot) { orientation <span class="operator">=</span> <span class="type"><a href="qquaternion.html">QQuaternion</a></span><span class="operator">::</span>fromAxisAndAngle(QVector3D(<span class="number">1.0f</span><span class="operator">,</span> <span class="number">1.0f</span><span class="operator">,</span> <span class="number">1.0f</span>)<span class="operator">,</span> r); <span class="keyword">emit</span> changed(); } } <span class="type">void</span> Cube<span class="operator">::</span>removeBounce() { <span class="keyword">delete</span> animGroup; animGroup <span class="operator">=</span> <span class="number">0</span>; <span class="keyword">delete</span> r; r <span class="operator">=</span> <span class="number">0</span>; } <span class="type">void</span> Cube<span class="operator">::</span>startAnimation() { <span class="keyword">if</span> (r) { r<span class="operator">-</span><span class="operator">></span>start(); r<span class="operator">-</span><span class="operator">></span>setCurrentTime(startx); } <span class="keyword">if</span> (animGroup) animGroup<span class="operator">-</span><span class="operator">></span>start(); <span class="keyword">if</span> (rtn) rtn<span class="operator">-</span><span class="operator">></span>start(); } <span class="type">void</span> Cube<span class="operator">::</span>setAnimationPaused(<span class="type">bool</span> paused) { <span class="keyword">if</span> (paused) { <span class="keyword">if</span> (r) r<span class="operator">-</span><span class="operator">></span>pause(); <span class="keyword">if</span> (animGroup) animGroup<span class="operator">-</span><span class="operator">></span>pause(); <span class="keyword">if</span> (rtn) rtn<span class="operator">-</span><span class="operator">></span>pause(); } <span class="keyword">else</span> { <span class="keyword">if</span> (r) r<span class="operator">-</span><span class="operator">></span>resume(); <span class="keyword">if</span> (animGroup) animGroup<span class="operator">-</span><span class="operator">></span>resume(); <span class="keyword">if</span> (rtn) rtn<span class="operator">-</span><span class="operator">></span>resume(); } } CubeBuilder<span class="operator">::</span>CubeBuilder(Geometry <span class="operator">*</span>g<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> depth<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> size) : TileBuilder(g<span class="operator">,</span> depth) <span class="operator">,</span> ix(<span class="number">0</span>) { <span class="keyword">for</span> (<span class="type">int</span> i <span class="operator">=</span> <span class="number">0</span>; i <span class="operator"><</span> <span class="number">4</span>; <span class="operator">+</span><span class="operator">+</span>i) verts<span class="operator">[</span>i<span class="operator">]</span><span class="operator">.</span>setZ(size <span class="operator">/</span> <span class="number">2.0f</span>); <span class="comment">// back face - "extrude" verts down</span> <span class="type"><a href="qvector.html">QVector</a></span><span class="operator"><</span>QVector3D<span class="operator">></span> back(verts); <span class="keyword">for</span> (<span class="type">int</span> i <span class="operator">=</span> <span class="number">0</span>; i <span class="operator"><</span> <span class="number">4</span>; <span class="operator">+</span><span class="operator">+</span>i) back<span class="operator">[</span>i<span class="operator">]</span><span class="operator">.</span>setZ(<span class="operator">-</span>size <span class="operator">/</span> <span class="number">2.0f</span>); <span class="comment">// add the back face</span> g<span class="operator">-</span><span class="operator">></span>addQuad(back<span class="operator">[</span>br<span class="operator">]</span><span class="operator">,</span> back<span class="operator">[</span>bl<span class="operator">]</span><span class="operator">,</span> back<span class="operator">[</span>tl<span class="operator">]</span><span class="operator">,</span> back<span class="operator">[</span>tr<span class="operator">]</span><span class="operator">,</span> tex); <span class="comment">// add the sides</span> g<span class="operator">-</span><span class="operator">></span>addQuad(back<span class="operator">[</span>bl<span class="operator">]</span><span class="operator">,</span> back<span class="operator">[</span>br<span class="operator">]</span><span class="operator">,</span> verts<span class="operator">[</span>br<span class="operator">]</span><span class="operator">,</span> verts<span class="operator">[</span>bl<span class="operator">]</span><span class="operator">,</span> tex); g<span class="operator">-</span><span class="operator">></span>addQuad(back<span class="operator">[</span>br<span class="operator">]</span><span class="operator">,</span> back<span class="operator">[</span>tr<span class="operator">]</span><span class="operator">,</span> verts<span class="operator">[</span>tr<span class="operator">]</span><span class="operator">,</span> verts<span class="operator">[</span>br<span class="operator">]</span><span class="operator">,</span> tex); g<span class="operator">-</span><span class="operator">></span>addQuad(back<span class="operator">[</span>tr<span class="operator">]</span><span class="operator">,</span> back<span class="operator">[</span>tl<span class="operator">]</span><span class="operator">,</span> verts<span class="operator">[</span>tl<span class="operator">]</span><span class="operator">,</span> verts<span class="operator">[</span>tr<span class="operator">]</span><span class="operator">,</span> tex); g<span class="operator">-</span><span class="operator">></span>addQuad(back<span class="operator">[</span>tl<span class="operator">]</span><span class="operator">,</span> back<span class="operator">[</span>bl<span class="operator">]</span><span class="operator">,</span> verts<span class="operator">[</span>bl<span class="operator">]</span><span class="operator">,</span> verts<span class="operator">[</span>tl<span class="operator">]</span><span class="operator">,</span> tex); count <span class="operator">=</span> g<span class="operator">-</span><span class="operator">></span>count() <span class="operator">-</span> start; } Cube <span class="operator">*</span>CubeBuilder<span class="operator">::</span>newCube(<span class="keyword">const</span> QVector3D <span class="operator">&</span>loc) <span class="keyword">const</span> { Cube <span class="operator">*</span>c <span class="operator">=</span> <span class="keyword">new</span> Cube(loc); initialize(c); <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> d <span class="operator">=</span> <span class="number">4000.0f</span>; <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> d3 <span class="operator">=</span> d <span class="operator">/</span> <span class="number">3.0f</span>; <span class="comment">// Animate movement from left to right</span> c<span class="operator">-</span><span class="operator">></span>r <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qpropertyanimation.html">QPropertyAnimation</a></span>(c<span class="operator">,</span> <span class="string">"range"</span>); c<span class="operator">-</span><span class="operator">></span>r<span class="operator">-</span><span class="operator">></span>setStartValue(<span class="operator">-</span><span class="number">1.3f</span>); c<span class="operator">-</span><span class="operator">></span>r<span class="operator">-</span><span class="operator">></span>setEndValue(<span class="number">1.3f</span>); c<span class="operator">-</span><span class="operator">></span>startx <span class="operator">=</span> ix <span class="operator">*</span> d3 <span class="operator">*</span> <span class="number">3.0f</span>; c<span class="operator">-</span><span class="operator">></span>r<span class="operator">-</span><span class="operator">></span>setDuration(d <span class="operator">*</span> <span class="number">4.0f</span>); c<span class="operator">-</span><span class="operator">></span>r<span class="operator">-</span><span class="operator">></span>setLoopCount(<span class="operator">-</span><span class="number">1</span>); c<span class="operator">-</span><span class="operator">></span>r<span class="operator">-</span><span class="operator">></span>setEasingCurve(<span class="type"><a href="qeasingcurve.html">QEasingCurve</a></span>(<span class="type"><a href="qeasingcurve.html">QEasingCurve</a></span><span class="operator">::</span>CosineCurve)); c<span class="operator">-</span><span class="operator">></span>animGroup <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qsequentialanimationgroup.html">QSequentialAnimationGroup</a></span>(c); <span class="comment">// Animate movement from bottom to top</span> <span class="type"><a href="qpropertyanimation.html">QPropertyAnimation</a></span> <span class="operator">*</span>a_up <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qpropertyanimation.html">QPropertyAnimation</a></span>(c<span class="operator">,</span> <span class="string">"altitude"</span><span class="operator">,</span> c<span class="operator">-</span><span class="operator">></span>animGroup); a_up<span class="operator">-</span><span class="operator">></span>setEndValue(loc<span class="operator">.</span>y()); a_up<span class="operator">-</span><span class="operator">></span>setStartValue(loc<span class="operator">.</span>y() <span class="operator">+</span> amplitudes<span class="operator">[</span>ix<span class="operator">]</span>); a_up<span class="operator">-</span><span class="operator">></span>setDuration(d <span class="operator">/</span> speeds<span class="operator">[</span>ix<span class="operator">]</span>); a_up<span class="operator">-</span><span class="operator">></span>setLoopCount(<span class="number">1</span>); a_up<span class="operator">-</span><span class="operator">></span>setEasingCurve(<span class="type"><a href="qeasingcurve.html">QEasingCurve</a></span>(<span class="type"><a href="qeasingcurve.html">QEasingCurve</a></span><span class="operator">::</span>InQuad)); <span class="comment">// Animate movement from top to bottom</span> <span class="type"><a href="qpropertyanimation.html">QPropertyAnimation</a></span> <span class="operator">*</span>a_down <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qpropertyanimation.html">QPropertyAnimation</a></span>(c<span class="operator">,</span> <span class="string">"altitude"</span><span class="operator">,</span> c<span class="operator">-</span><span class="operator">></span>animGroup); a_down<span class="operator">-</span><span class="operator">></span>setEndValue(loc<span class="operator">.</span>y() <span class="operator">+</span> amplitudes<span class="operator">[</span>ix<span class="operator">]</span>); a_down<span class="operator">-</span><span class="operator">></span>setStartValue(loc<span class="operator">.</span>y()); a_down<span class="operator">-</span><span class="operator">></span>setDuration(d <span class="operator">/</span> speeds<span class="operator">[</span>ix<span class="operator">]</span>); a_down<span class="operator">-</span><span class="operator">></span>setLoopCount(<span class="number">1</span>); a_down<span class="operator">-</span><span class="operator">></span>setEasingCurve(<span class="type"><a href="qeasingcurve.html">QEasingCurve</a></span>(<span class="type"><a href="qeasingcurve.html">QEasingCurve</a></span><span class="operator">::</span>OutQuad)); c<span class="operator">-</span><span class="operator">></span>animGroup<span class="operator">-</span><span class="operator">></span>addAnimation(a_up); c<span class="operator">-</span><span class="operator">></span>animGroup<span class="operator">-</span><span class="operator">></span>addAnimation(a_down); c<span class="operator">-</span><span class="operator">></span>animGroup<span class="operator">-</span><span class="operator">></span>setLoopCount(<span class="operator">-</span><span class="number">1</span>); <span class="comment">// Animate rotation</span> c<span class="operator">-</span><span class="operator">></span>rtn <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qpropertyanimation.html">QPropertyAnimation</a></span>(c<span class="operator">,</span> <span class="string">"rotation"</span>); c<span class="operator">-</span><span class="operator">></span>rtn<span class="operator">-</span><span class="operator">></span>setStartValue(c<span class="operator">-</span><span class="operator">></span>rot); c<span class="operator">-</span><span class="operator">></span>rtn<span class="operator">-</span><span class="operator">></span>setEndValue(<span class="number">359.0f</span>); c<span class="operator">-</span><span class="operator">></span>rtn<span class="operator">-</span><span class="operator">></span>setDuration(d <span class="operator">*</span> <span class="number">2.0f</span>); c<span class="operator">-</span><span class="operator">></span>rtn<span class="operator">-</span><span class="operator">></span>setLoopCount(<span class="operator">-</span><span class="number">1</span>); c<span class="operator">-</span><span class="operator">></span>rtn<span class="operator">-</span><span class="operator">></span>setDuration(d <span class="operator">/</span> <span class="number">2</span>); ix <span class="operator">=</span> (ix <span class="operator">+</span> <span class="number">1</span>) <span class="operator">%</span> <span class="number">3</span>; <span class="keyword">return</span> c; }</pre> </div> <!-- @@@opengl/pbuffers/cube.cpp --> </div> </div> </div> <div class="ft"> <span></span> </div> </div> <div class="footer"> <p> <acronym title="Copyright">©</acronym> 2015 The Qt Company Ltd. 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