<?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>customtablemodel.cpp Example File | Qt Charts 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="qtcharts-index.html">Qt Charts</a></td><td ><a href="qtcharts-barmodelmapper-example.html">BarModelMapper Example</a></td><td >customtablemodel.cpp Example File</td></tr></table><table class="buildversion"><tr> <td id="buildversion" width="100%" align="right"><a href="qtcharts-index.html">Qt Charts | 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">customtablemodel.cpp Example File</h1> <span class="subtitle">barmodelmapper/customtablemodel.cpp</span> <!-- $$$barmodelmapper/customtablemodel.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 Charts 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 "customtablemodel.h"</span> <span class="preprocessor">#include <QtCore/QVector></span> <span class="preprocessor">#include <QtCore/QTime></span> <span class="preprocessor">#include <QtCore/QRect></span> <span class="preprocessor">#include <QtCore/QRandomGenerator></span> <span class="preprocessor">#include <QtGui/QColor></span> CustomTableModel<span class="operator">::</span>CustomTableModel(<span class="type">QObject</span> <span class="operator">*</span>parent) : <span class="type">QAbstractTableModel</span>(parent) { m_columnCount <span class="operator">=</span> <span class="number">6</span>; m_rowCount <span class="operator">=</span> <span class="number">12</span>; <span class="comment">// m_data</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> m_rowCount; i<span class="operator">+</span><span class="operator">+</span>) { <span class="type">QVector</span><span class="operator"><</span><span class="type">qreal</span><span class="operator">></span><span class="operator">*</span> dataVec <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QVector</span><span class="operator"><</span><span class="type">qreal</span><span class="operator">></span>(m_columnCount); <span class="keyword">for</span> (<span class="type">int</span> k <span class="operator">=</span> <span class="number">0</span>; k <span class="operator"><</span> dataVec<span class="operator">-</span><span class="operator">></span>size(); k<span class="operator">+</span><span class="operator">+</span>) { <span class="keyword">if</span> (k <span class="operator">%</span> <span class="number">2</span> <span class="operator">=</span><span class="operator">=</span> <span class="number">0</span>) dataVec<span class="operator">-</span><span class="operator">></span>replace(k<span class="operator">,</span> i <span class="operator">*</span> <span class="number">50</span> <span class="operator">+</span> <span class="type">QRandomGenerator</span><span class="operator">::</span>global()<span class="operator">-</span><span class="operator">></span>bounded(<span class="number">20</span>)); <span class="keyword">else</span> dataVec<span class="operator">-</span><span class="operator">></span>replace(k<span class="operator">,</span> <span class="type">QRandomGenerator</span><span class="operator">::</span>global()<span class="operator">-</span><span class="operator">></span>bounded(<span class="number">100</span>)); } m_data<span class="operator">.</span>append(dataVec); } } CustomTableModel<span class="operator">::</span><span class="operator">~</span>CustomTableModel() { qDeleteAll(m_data); } <span class="type">int</span> CustomTableModel<span class="operator">::</span>rowCount(<span class="keyword">const</span> <span class="type">QModelIndex</span> <span class="operator">&</span>parent) <span class="keyword">const</span> { Q_UNUSED(parent) <span class="keyword">return</span> m_data<span class="operator">.</span>count(); } <span class="type">int</span> CustomTableModel<span class="operator">::</span>columnCount(<span class="keyword">const</span> <span class="type">QModelIndex</span> <span class="operator">&</span>parent) <span class="keyword">const</span> { Q_UNUSED(parent) <span class="keyword">return</span> m_columnCount; } <span class="type">QVariant</span> CustomTableModel<span class="operator">::</span>headerData(<span class="type">int</span> section<span class="operator">,</span> <span class="type">Qt</span><span class="operator">::</span>Orientation orientation<span class="operator">,</span> <span class="type">int</span> role) <span class="keyword">const</span> { <span class="keyword">if</span> (role <span class="operator">!</span><span class="operator">=</span> <span class="type">Qt</span><span class="operator">::</span>DisplayRole) <span class="keyword">return</span> <span class="type">QVariant</span>(); <span class="keyword">if</span> (orientation <span class="operator">=</span><span class="operator">=</span> <span class="type">Qt</span><span class="operator">::</span>Horizontal) <span class="keyword">return</span> <span class="type">QString</span>(<span class="string">"201%1"</span>)<span class="operator">.</span>arg(section); <span class="keyword">else</span> <span class="keyword">return</span> <span class="type">QString</span>(<span class="string">"%1"</span>)<span class="operator">.</span>arg(section <span class="operator">+</span> <span class="number">1</span>); } <span class="type">QVariant</span> CustomTableModel<span class="operator">::</span>data(<span class="keyword">const</span> <span class="type">QModelIndex</span> <span class="operator">&</span>index<span class="operator">,</span> <span class="type">int</span> role) <span class="keyword">const</span> { <span class="keyword">if</span> (role <span class="operator">=</span><span class="operator">=</span> <span class="type">Qt</span><span class="operator">::</span>DisplayRole) { <span class="keyword">return</span> m_data<span class="operator">[</span>index<span class="operator">.</span>row()<span class="operator">]</span><span class="operator">-</span><span class="operator">></span>at(index<span class="operator">.</span>column()); } <span class="keyword">else</span> <span class="keyword">if</span> (role <span class="operator">=</span><span class="operator">=</span> <span class="type">Qt</span><span class="operator">::</span>EditRole) { <span class="keyword">return</span> m_data<span class="operator">[</span>index<span class="operator">.</span>row()<span class="operator">]</span><span class="operator">-</span><span class="operator">></span>at(index<span class="operator">.</span>column()); } <span class="keyword">else</span> <span class="keyword">if</span> (role <span class="operator">=</span><span class="operator">=</span> <span class="type">Qt</span><span class="operator">::</span>BackgroundRole) { <span class="keyword">for</span> (<span class="keyword">const</span> <span class="type">QRect</span> <span class="operator">&</span>rect : m_mapping) { <span class="keyword">if</span> (rect<span class="operator">.</span>contains(index<span class="operator">.</span>column()<span class="operator">,</span> index<span class="operator">.</span>row())) <span class="keyword">return</span> <span class="type">QColor</span>(m_mapping<span class="operator">.</span>key(rect)); } <span class="comment">// cell not mapped return white color</span> <span class="keyword">return</span> <span class="type">QColor</span>(<span class="type">Qt</span><span class="operator">::</span>white); } <span class="keyword">return</span> <span class="type">QVariant</span>(); } bool CustomTableModel<span class="operator">::</span>setData(<span class="keyword">const</span> <span class="type">QModelIndex</span> <span class="operator">&</span>index<span class="operator">,</span> <span class="keyword">const</span> <span class="type">QVariant</span> <span class="operator">&</span>value<span class="operator">,</span> <span class="type">int</span> role) { <span class="keyword">if</span> (index<span class="operator">.</span>isValid() <span class="operator">&</span><span class="operator">&</span> role <span class="operator">=</span><span class="operator">=</span> <span class="type">Qt</span><span class="operator">::</span>EditRole) { m_data<span class="operator">[</span>index<span class="operator">.</span>row()<span class="operator">]</span><span class="operator">-</span><span class="operator">></span>replace(index<span class="operator">.</span>column()<span class="operator">,</span> value<span class="operator">.</span>toDouble()); <span class="keyword">emit</span> dataChanged(index<span class="operator">,</span> index); <span class="keyword">return</span> <span class="keyword">true</span>; } <span class="keyword">return</span> <span class="keyword">false</span>; } <span class="type">Qt</span><span class="operator">::</span>ItemFlags CustomTableModel<span class="operator">::</span>flags(<span class="keyword">const</span> <span class="type">QModelIndex</span> <span class="operator">&</span>index) <span class="keyword">const</span> { <span class="keyword">return</span> <span class="type">QAbstractItemModel</span><span class="operator">::</span>flags(index) <span class="operator">|</span> <span class="type">Qt</span><span class="operator">::</span>ItemIsEditable; } <span class="type">void</span> CustomTableModel<span class="operator">::</span>addMapping(<span class="type">QString</span> color<span class="operator">,</span> <span class="type">QRect</span> area) { m_mapping<span class="operator">.</span>insertMulti(color<span class="operator">,</span> area); } </pre> </div> <!-- @@@barmodelmapper/customtablemodel.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>