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<h1 class="title">customtablemodel.cpp Example File</h1>
<span class="subtitle">modeldata/customtablemodel.cpp</span>
<!-- $$$modeldata/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 <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)
{
qsrand(<span class="type">QTime</span>(<span class="number">0</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">0</span>)<span class="operator">.</span>secsTo(<span class="type">QTime</span><span class="operator">::</span>currentTime()));
m_columnCount <span class="operator">=</span> <span class="number">4</span>;
m_rowCount <span class="operator">=</span> <span class="number">15</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> qrand() <span class="operator">%</span> <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> qrand() <span class="operator">%</span> <span class="number">100</span>);
}
m_data<span class="operator">.</span>append(dataVec);
}
}
<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">if</span> (section <span class="operator">%</span> <span class="number">2</span> <span class="operator">=</span><span class="operator">=</span> <span class="number">0</span>)
<span class="keyword">return</span> <span class="string">"x"</span>;
<span class="keyword">else</span>
<span class="keyword">return</span> <span class="string">"y"</span>;
} <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>
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<!-- @@@modeldata/customtablemodel.cpp -->
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