<?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>main.cpp Example File | Qt Data Visualization 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="qtdatavisualization-index.html">Qt Data Visualization</a></td><td ><a href="qtdatavisualization-scatter-example.html">Scatter Example</a></td><td >main.cpp Example File</td></tr></table><table class="buildversion"><tr> <td id="buildversion" width="100%" align="right"><a href="qtdatavisualization-index.html">Qt Data Visualization | Commercial or GPLv3</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">main.cpp Example File</h1> <span class="subtitle">scatter/main.cpp</span> <!-- $$$scatter/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 "scatterdatamodifier.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/QPushButton></span> <span class="preprocessor">#include <QtWidgets/QCheckBox></span> <span class="preprocessor">#include <QtWidgets/QComboBox></span> <span class="preprocessor">#include <QtWidgets/QFontComboBox></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/QFontDatabase></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="q3dscatter.html">Q3DScatter</a></span> <span class="operator">*</span>graph <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="q3dscatter.html">Q3DScatter</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">1.5</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); widget<span class="operator">-</span><span class="operator">></span>setWindowTitle(<span class="type">QStringLiteral</span>(<span class="string">"A Cosine Wave"</span>)); <span class="type">QComboBox</span> <span class="operator">*</span>themeList <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QComboBox</span>(widget); themeList<span class="operator">-</span><span class="operator">></span>addItem(<span class="type">QStringLiteral</span>(<span class="string">"Qt"</span>)); themeList<span class="operator">-</span><span class="operator">></span>addItem(<span class="type">QStringLiteral</span>(<span class="string">"Primary Colors"</span>)); themeList<span class="operator">-</span><span class="operator">></span>addItem(<span class="type">QStringLiteral</span>(<span class="string">"Digia"</span>)); themeList<span class="operator">-</span><span class="operator">></span>addItem(<span class="type">QStringLiteral</span>(<span class="string">"Stone Moss"</span>)); themeList<span class="operator">-</span><span class="operator">></span>addItem(<span class="type">QStringLiteral</span>(<span class="string">"Army Blue"</span>)); themeList<span class="operator">-</span><span class="operator">></span>addItem(<span class="type">QStringLiteral</span>(<span class="string">"Retro"</span>)); themeList<span class="operator">-</span><span class="operator">></span>addItem(<span class="type">QStringLiteral</span>(<span class="string">"Ebony"</span>)); themeList<span class="operator">-</span><span class="operator">></span>addItem(<span class="type">QStringLiteral</span>(<span class="string">"Isabelle"</span>)); themeList<span class="operator">-</span><span class="operator">></span>setCurrentIndex(<span class="number">6</span>); <span class="type">QPushButton</span> <span class="operator">*</span>labelButton <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QPushButton</span>(widget); labelButton<span class="operator">-</span><span class="operator">></span>setText(<span class="type">QStringLiteral</span>(<span class="string">"Change label style"</span>)); <span class="type">QCheckBox</span> <span class="operator">*</span>smoothCheckBox <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QCheckBox</span>(widget); smoothCheckBox<span class="operator">-</span><span class="operator">></span>setText(<span class="type">QStringLiteral</span>(<span class="string">"Smooth dots"</span>)); smoothCheckBox<span class="operator">-</span><span class="operator">></span>setChecked(<span class="keyword">true</span>); <span class="type">QComboBox</span> <span class="operator">*</span>itemStyleList <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QComboBox</span>(widget); itemStyleList<span class="operator">-</span><span class="operator">></span>addItem(<span class="type">QStringLiteral</span>(<span class="string">"Sphere"</span>)<span class="operator">,</span> <span class="type">int</span>(QAbstract3DSeries<span class="operator">::</span>MeshSphere)); itemStyleList<span class="operator">-</span><span class="operator">></span>addItem(<span class="type">QStringLiteral</span>(<span class="string">"Cube"</span>)<span class="operator">,</span> <span class="type">int</span>(QAbstract3DSeries<span class="operator">::</span>MeshCube)); itemStyleList<span class="operator">-</span><span class="operator">></span>addItem(<span class="type">QStringLiteral</span>(<span class="string">"Minimal"</span>)<span class="operator">,</span> <span class="type">int</span>(QAbstract3DSeries<span class="operator">::</span>MeshMinimal)); itemStyleList<span class="operator">-</span><span class="operator">></span>addItem(<span class="type">QStringLiteral</span>(<span class="string">"Point"</span>)<span class="operator">,</span> <span class="type">int</span>(QAbstract3DSeries<span class="operator">::</span>MeshPoint)); itemStyleList<span class="operator">-</span><span class="operator">></span>setCurrentIndex(<span class="number">0</span>); <span class="type">QPushButton</span> <span class="operator">*</span>cameraButton <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QPushButton</span>(widget); cameraButton<span class="operator">-</span><span class="operator">></span>setText(<span class="type">QStringLiteral</span>(<span class="string">"Change camera preset"</span>)); <span class="type">QPushButton</span> <span class="operator">*</span>itemCountButton <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QPushButton</span>(widget); itemCountButton<span class="operator">-</span><span class="operator">></span>setText(<span class="type">QStringLiteral</span>(<span class="string">"Toggle item count"</span>)); <span class="type">QCheckBox</span> <span class="operator">*</span>backgroundCheckBox <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QCheckBox</span>(widget); backgroundCheckBox<span class="operator">-</span><span class="operator">></span>setText(<span class="type">QStringLiteral</span>(<span class="string">"Show background"</span>)); backgroundCheckBox<span class="operator">-</span><span class="operator">></span>setChecked(<span class="keyword">true</span>); <span class="type">QCheckBox</span> <span class="operator">*</span>gridCheckBox <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QCheckBox</span>(widget); gridCheckBox<span class="operator">-</span><span class="operator">></span>setText(<span class="type">QStringLiteral</span>(<span class="string">"Show grid"</span>)); gridCheckBox<span class="operator">-</span><span class="operator">></span>setChecked(<span class="keyword">true</span>); <span class="type">QComboBox</span> <span class="operator">*</span>shadowQuality <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QComboBox</span>(widget); shadowQuality<span class="operator">-</span><span class="operator">></span>addItem(<span class="type">QStringLiteral</span>(<span class="string">"None"</span>)); shadowQuality<span class="operator">-</span><span class="operator">></span>addItem(<span class="type">QStringLiteral</span>(<span class="string">"Low"</span>)); shadowQuality<span class="operator">-</span><span class="operator">></span>addItem(<span class="type">QStringLiteral</span>(<span class="string">"Medium"</span>)); shadowQuality<span class="operator">-</span><span class="operator">></span>addItem(<span class="type">QStringLiteral</span>(<span class="string">"High"</span>)); shadowQuality<span class="operator">-</span><span class="operator">></span>addItem(<span class="type">QStringLiteral</span>(<span class="string">"Low Soft"</span>)); shadowQuality<span class="operator">-</span><span class="operator">></span>addItem(<span class="type">QStringLiteral</span>(<span class="string">"Medium Soft"</span>)); shadowQuality<span class="operator">-</span><span class="operator">></span>addItem(<span class="type">QStringLiteral</span>(<span class="string">"High Soft"</span>)); shadowQuality<span class="operator">-</span><span class="operator">></span>setCurrentIndex(<span class="number">4</span>); <span class="type">QFontComboBox</span> <span class="operator">*</span>fontList <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QFontComboBox</span>(widget); fontList<span class="operator">-</span><span class="operator">></span>setCurrentFont(<span class="type">QFont</span>(<span class="string">"Arial"</span>)); vLayout<span class="operator">-</span><span class="operator">></span>addWidget(labelButton<span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="type">Qt</span><span class="operator">::</span>AlignTop); vLayout<span class="operator">-</span><span class="operator">></span>addWidget(cameraButton<span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="type">Qt</span><span class="operator">::</span>AlignTop); vLayout<span class="operator">-</span><span class="operator">></span>addWidget(itemCountButton<span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="type">Qt</span><span class="operator">::</span>AlignTop); vLayout<span class="operator">-</span><span class="operator">></span>addWidget(backgroundCheckBox); vLayout<span class="operator">-</span><span class="operator">></span>addWidget(gridCheckBox); vLayout<span class="operator">-</span><span class="operator">></span>addWidget(smoothCheckBox<span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="type">Qt</span><span class="operator">::</span>AlignTop); vLayout<span class="operator">-</span><span class="operator">></span>addWidget(<span class="keyword">new</span> <span class="type">QLabel</span>(<span class="type">QStringLiteral</span>(<span class="string">"Change dot style"</span>))); vLayout<span class="operator">-</span><span class="operator">></span>addWidget(itemStyleList); vLayout<span class="operator">-</span><span class="operator">></span>addWidget(<span class="keyword">new</span> <span class="type">QLabel</span>(<span class="type">QStringLiteral</span>(<span class="string">"Change theme"</span>))); vLayout<span class="operator">-</span><span class="operator">></span>addWidget(themeList); vLayout<span class="operator">-</span><span class="operator">></span>addWidget(<span class="keyword">new</span> <span class="type">QLabel</span>(<span class="type">QStringLiteral</span>(<span class="string">"Adjust shadow quality"</span>))); vLayout<span class="operator">-</span><span class="operator">></span>addWidget(shadowQuality); vLayout<span class="operator">-</span><span class="operator">></span>addWidget(<span class="keyword">new</span> <span class="type">QLabel</span>(<span class="type">QStringLiteral</span>(<span class="string">"Change font"</span>))); vLayout<span class="operator">-</span><span class="operator">></span>addWidget(fontList<span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="type">Qt</span><span class="operator">::</span>AlignTop); ScatterDataModifier <span class="operator">*</span>modifier <span class="operator">=</span> <span class="keyword">new</span> ScatterDataModifier(graph); <span class="type">QObject</span><span class="operator">::</span>connect(cameraButton<span class="operator">,</span> <span class="operator">&</span><span class="type">QPushButton</span><span class="operator">::</span>clicked<span class="operator">,</span> modifier<span class="operator">,</span> <span class="operator">&</span>ScatterDataModifier<span class="operator">::</span>changePresetCamera); <span class="type">QObject</span><span class="operator">::</span>connect(labelButton<span class="operator">,</span> <span class="operator">&</span><span class="type">QPushButton</span><span class="operator">::</span>clicked<span class="operator">,</span> modifier<span class="operator">,</span> <span class="operator">&</span>ScatterDataModifier<span class="operator">::</span>changeLabelStyle); <span class="type">QObject</span><span class="operator">::</span>connect(itemCountButton<span class="operator">,</span> <span class="operator">&</span><span class="type">QPushButton</span><span class="operator">::</span>clicked<span class="operator">,</span> modifier<span class="operator">,</span> <span class="operator">&</span>ScatterDataModifier<span class="operator">::</span>toggleItemCount); <span class="type">QObject</span><span class="operator">::</span>connect(backgroundCheckBox<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>ScatterDataModifier<span class="operator">::</span>setBackgroundEnabled); <span class="type">QObject</span><span class="operator">::</span>connect(gridCheckBox<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>ScatterDataModifier<span class="operator">::</span>setGridEnabled); <span class="type">QObject</span><span class="operator">::</span>connect(smoothCheckBox<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>ScatterDataModifier<span class="operator">::</span>setSmoothDots); <span class="type">QObject</span><span class="operator">::</span>connect(modifier<span class="operator">,</span> <span class="operator">&</span>ScatterDataModifier<span class="operator">::</span>backgroundEnabledChanged<span class="operator">,</span> backgroundCheckBox<span class="operator">,</span> <span class="operator">&</span><span class="type">QCheckBox</span><span class="operator">::</span>setChecked); <span class="type">QObject</span><span class="operator">::</span>connect(modifier<span class="operator">,</span> <span class="operator">&</span>ScatterDataModifier<span class="operator">::</span>gridEnabledChanged<span class="operator">,</span> gridCheckBox<span class="operator">,</span> <span class="operator">&</span><span class="type">QCheckBox</span><span class="operator">::</span>setChecked); <span class="type">QObject</span><span class="operator">::</span>connect(itemStyleList<span class="operator">,</span> SIGNAL(currentIndexChanged(<span class="type">int</span>))<span class="operator">,</span> modifier<span class="operator">,</span> SLOT(changeStyle(<span class="type">int</span>))); <span class="type">QObject</span><span class="operator">::</span>connect(themeList<span class="operator">,</span> SIGNAL(currentIndexChanged(<span class="type">int</span>))<span class="operator">,</span> modifier<span class="operator">,</span> SLOT(changeTheme(<span class="type">int</span>))); <span class="type">QObject</span><span class="operator">::</span>connect(shadowQuality<span class="operator">,</span> SIGNAL(currentIndexChanged(<span class="type">int</span>))<span class="operator">,</span> modifier<span class="operator">,</span> SLOT(changeShadowQuality(<span class="type">int</span>))); <span class="type">QObject</span><span class="operator">::</span>connect(modifier<span class="operator">,</span> <span class="operator">&</span>ScatterDataModifier<span class="operator">::</span>shadowQualityChanged<span class="operator">,</span> shadowQuality<span class="operator">,</span> <span class="operator">&</span><span class="type">QComboBox</span><span class="operator">::</span>setCurrentIndex); <span class="type">QObject</span><span class="operator">::</span>connect(graph<span class="operator">,</span> <span class="operator">&</span><span class="type"><a href="q3dscatter.html">Q3DScatter</a></span><span class="operator">::</span>shadowQualityChanged<span class="operator">,</span> modifier<span class="operator">,</span> <span class="operator">&</span>ScatterDataModifier<span class="operator">::</span>shadowQualityUpdatedByVisual); <span class="type">QObject</span><span class="operator">::</span>connect(fontList<span class="operator">,</span> <span class="operator">&</span><span class="type">QFontComboBox</span><span class="operator">::</span>currentFontChanged<span class="operator">,</span> modifier<span class="operator">,</span> <span class="operator">&</span>ScatterDataModifier<span class="operator">::</span>changeFont); <span class="type">QObject</span><span class="operator">::</span>connect(modifier<span class="operator">,</span> <span class="operator">&</span>ScatterDataModifier<span class="operator">::</span>fontChanged<span class="operator">,</span> fontList<span class="operator">,</span> <span class="operator">&</span><span class="type">QFontComboBox</span><span class="operator">::</span>setCurrentFont); widget<span class="operator">-</span><span class="operator">></span>show(); <span class="keyword">return</span> app<span class="operator">.</span>exec(); } </pre> </div> <!-- @@@scatter/main.cpp --> </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>