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<h1 class="title">main.cpp Example File</h1>
<span class="subtitle">texturesurface/main.cpp</span>
<!-- $$$texturesurface/main.cpp-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 Qt Data Visualization module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:GPL$
** 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.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 or (at your option) any later version
** approved by the KDE Free Qt Foundation. The licenses are as published by
** the Free Software Foundation and appearing in the file LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/</span>
<span class="preprocessor">#include "surfacegraph.h"</span>
<span class="preprocessor">#include <QtWidgets/QApplication></span>
<span class="preprocessor">#include <QtWidgets/QWidget></span>
<span class="preprocessor">#include <QtWidgets/QHBoxLayout></span>
<span class="preprocessor">#include <QtWidgets/QVBoxLayout></span>
<span class="preprocessor">#include <QtWidgets/QGroupBox></span>
<span class="preprocessor">#include <QtWidgets/QCheckBox></span>
<span class="preprocessor">#include <QtWidgets/QLabel></span>
<span class="preprocessor">#include <QtWidgets/QMessageBox></span>
<span class="preprocessor">#include <QtGui/QScreen></span>
<span class="preprocessor">#include <QtGui/QPainter></span>
<span class="type">int</span> main(<span class="type">int</span> argc<span class="operator">,</span> <span class="type">char</span> <span class="operator">*</span><span class="operator">*</span>argv)
{
<span class="type">QApplication</span> app(argc<span class="operator">,</span> argv);
<span class="type"><a href="q3dsurface.html">Q3DSurface</a></span> <span class="operator">*</span>graph <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="q3dsurface.html">Q3DSurface</a></span>();
<span class="type">QWidget</span> <span class="operator">*</span>container <span class="operator">=</span> <span class="type">QWidget</span><span class="operator">::</span>createWindowContainer(graph);
<span class="keyword">if</span> (<span class="operator">!</span>graph<span class="operator">-</span><span class="operator">></span>hasContext()) {
<span class="type">QMessageBox</span> msgBox;
msgBox<span class="operator">.</span>setText(<span class="string">"Couldn't initialize the OpenGL context."</span>);
msgBox<span class="operator">.</span>exec();
<span class="keyword">return</span> <span class="operator">-</span><span class="number">1</span>;
}
<span class="type">QSize</span> screenSize <span class="operator">=</span> graph<span class="operator">-</span><span class="operator">></span>screen()<span class="operator">-</span><span class="operator">></span>size();
container<span class="operator">-</span><span class="operator">></span>setMinimumSize(<span class="type">QSize</span>(screenSize<span class="operator">.</span>width() <span class="operator">/</span> <span class="number">2</span><span class="operator">,</span> screenSize<span class="operator">.</span>height() <span class="operator">/</span> <span class="number">1.6</span>));
container<span class="operator">-</span><span class="operator">></span>setMaximumSize(screenSize);
container<span class="operator">-</span><span class="operator">></span>setSizePolicy(<span class="type">QSizePolicy</span><span class="operator">::</span>Expanding<span class="operator">,</span> <span class="type">QSizePolicy</span><span class="operator">::</span>Expanding);
container<span class="operator">-</span><span class="operator">></span>setFocusPolicy(<span class="type">Qt</span><span class="operator">::</span>StrongFocus);
<span class="type">QWidget</span> <span class="operator">*</span>widget <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QWidget</span>;
<span class="type">QHBoxLayout</span> <span class="operator">*</span>hLayout <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QHBoxLayout</span>(widget);
<span class="type">QVBoxLayout</span> <span class="operator">*</span>vLayout <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QVBoxLayout</span>();
hLayout<span class="operator">-</span><span class="operator">></span>addWidget(container<span class="operator">,</span> <span class="number">1</span>);
hLayout<span class="operator">-</span><span class="operator">></span>addLayout(vLayout);
vLayout<span class="operator">-</span><span class="operator">></span>setAlignment(<span class="type">Qt</span><span class="operator">::</span>AlignTop);
widget<span class="operator">-</span><span class="operator">></span>setWindowTitle(<span class="type">QStringLiteral</span>(<span class="string">"Textured surface example"</span>));
<span class="type">QCheckBox</span> <span class="operator">*</span>enableTexture <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QCheckBox</span>(widget);
enableTexture<span class="operator">-</span><span class="operator">></span>setText(<span class="type">QStringLiteral</span>(<span class="string">"Surface texture"</span>));
<span class="type">int</span> height <span class="operator">=</span> <span class="number">400</span>;
<span class="type">int</span> width <span class="operator">=</span> <span class="number">100</span>;
<span class="type">int</span> border <span class="operator">=</span> <span class="number">10</span>;
<span class="type">QLinearGradient</span> gr(<span class="number">0</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> height <span class="operator">-</span> <span class="number">2</span> <span class="operator">*</span> border);
gr<span class="operator">.</span>setColorAt(<span class="number">1.0f</span><span class="operator">,</span> <span class="type">Qt</span><span class="operator">::</span>black);
gr<span class="operator">.</span>setColorAt(<span class="number">0.8f</span><span class="operator">,</span> <span class="type">Qt</span><span class="operator">::</span>darkGreen);
gr<span class="operator">.</span>setColorAt(<span class="number">0.6f</span><span class="operator">,</span> <span class="type">Qt</span><span class="operator">::</span>green);
gr<span class="operator">.</span>setColorAt(<span class="number">0.4f</span><span class="operator">,</span> <span class="type">Qt</span><span class="operator">::</span>yellow);
gr<span class="operator">.</span>setColorAt(<span class="number">0.2f</span><span class="operator">,</span> <span class="type">Qt</span><span class="operator">::</span>red);
gr<span class="operator">.</span>setColorAt(<span class="number">0.0f</span><span class="operator">,</span> <span class="type">Qt</span><span class="operator">::</span>darkRed);
<span class="type">QPixmap</span> pm(width<span class="operator">,</span> height);
pm<span class="operator">.</span>fill(<span class="type">Qt</span><span class="operator">::</span>transparent);
<span class="type">QPainter</span> pmp(<span class="operator">&</span>pm);
pmp<span class="operator">.</span>setBrush(<span class="type">QBrush</span>(gr));
pmp<span class="operator">.</span>setPen(<span class="type">Qt</span><span class="operator">::</span>NoPen);
pmp<span class="operator">.</span>drawRect(border<span class="operator">,</span> border<span class="operator">,</span> <span class="number">35</span><span class="operator">,</span> height <span class="operator">-</span> <span class="number">2</span> <span class="operator">*</span> border);
pmp<span class="operator">.</span>setPen(<span class="type">Qt</span><span class="operator">::</span>black);
<span class="type">int</span> step <span class="operator">=</span> (height <span class="operator">-</span> <span class="number">2</span> <span class="operator">*</span> border) <span class="operator">/</span> <span class="number">5</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">6</span>; i<span class="operator">+</span><span class="operator">+</span>) {
<span class="type">int</span> yPos <span class="operator">=</span> i <span class="operator">*</span> step <span class="operator">+</span> border;
pmp<span class="operator">.</span>drawLine(border<span class="operator">,</span> yPos<span class="operator">,</span> <span class="number">55</span><span class="operator">,</span> yPos);
pmp<span class="operator">.</span>drawText(<span class="number">60</span><span class="operator">,</span> yPos <span class="operator">+</span> <span class="number">2</span><span class="operator">,</span> <span class="type">QString</span>(<span class="string">"%1 m"</span>)<span class="operator">.</span>arg(<span class="number">550</span> <span class="operator">-</span> (i <span class="operator">*</span> <span class="number">110</span>)));
}
<span class="type">QLabel</span> <span class="operator">*</span>label <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QLabel</span>(widget);
label<span class="operator">-</span><span class="operator">></span>setPixmap(pm);
<span class="type">QGroupBox</span> <span class="operator">*</span>heightMapGroupBox <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QGroupBox</span>(<span class="type">QStringLiteral</span>(<span class="string">"Highlight color map"</span>));
<span class="type">QVBoxLayout</span> <span class="operator">*</span>colorMapVBox <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QVBoxLayout</span>;
colorMapVBox<span class="operator">-</span><span class="operator">></span>addWidget(label);
heightMapGroupBox<span class="operator">-</span><span class="operator">></span>setLayout(colorMapVBox);
vLayout<span class="operator">-</span><span class="operator">></span>addWidget(enableTexture);
vLayout<span class="operator">-</span><span class="operator">></span>addWidget(heightMapGroupBox);
widget<span class="operator">-</span><span class="operator">></span>show();
SurfaceGraph <span class="operator">*</span>modifier <span class="operator">=</span> <span class="keyword">new</span> SurfaceGraph(graph);
<span class="type">QObject</span><span class="operator">::</span>connect(enableTexture<span class="operator">,</span> <span class="operator">&</span><span class="type">QCheckBox</span><span class="operator">::</span>stateChanged<span class="operator">,</span>
modifier<span class="operator">,</span> <span class="operator">&</span>SurfaceGraph<span class="operator">::</span>toggleSurfaceTexture);
enableTexture<span class="operator">-</span><span class="operator">></span>setChecked(<span class="keyword">true</span>);
<span class="keyword">return</span> app<span class="operator">.</span>exec();
}
</pre>
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<!-- @@@texturesurface/main.cpp -->
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distrib
>
Mageia
>
7
>
armv7hl
>
media
>
core-updates
>
by-pkgid
>
845e36bb3ecce380666d628d88446962
>
files
>
360
