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<h1 class="title">themewidget.cpp Example File</h1>
<span class="subtitle">chartthemes/themewidget.cpp</span>
<!-- $$$chartthemes/themewidget.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 "themewidget.h"</span>
<span class="preprocessor">#include <QtCharts/QChartView></span>
<span class="preprocessor">#include <QtCharts/QPieSeries></span>
<span class="preprocessor">#include <QtCharts/QPieSlice></span>
<span class="preprocessor">#include <QtCharts/QAbstractBarSeries></span>
<span class="preprocessor">#include <QtCharts/QPercentBarSeries></span>
<span class="preprocessor">#include <QtCharts/QStackedBarSeries></span>
<span class="preprocessor">#include <QtCharts/QBarSeries></span>
<span class="preprocessor">#include <QtCharts/QBarSet></span>
<span class="preprocessor">#include <QtCharts/QLineSeries></span>
<span class="preprocessor">#include <QtCharts/QSplineSeries></span>
<span class="preprocessor">#include <QtCharts/QScatterSeries></span>
<span class="preprocessor">#include <QtCharts/QAreaSeries></span>
<span class="preprocessor">#include <QtCharts/QLegend></span>
<span class="preprocessor">#include <QtWidgets/QGridLayout></span>
<span class="preprocessor">#include <QtWidgets/QFormLayout></span>
<span class="preprocessor">#include <QtWidgets/QComboBox></span>
<span class="preprocessor">#include <QtWidgets/QSpinBox></span>
<span class="preprocessor">#include <QtWidgets/QCheckBox></span>
<span class="preprocessor">#include <QtWidgets/QGroupBox></span>
<span class="preprocessor">#include <QtWidgets/QLabel></span>
<span class="preprocessor">#include <QtCore/QTime></span>
<span class="preprocessor">#include <QtCharts/QBarCategoryAxis></span>
ThemeWidget<span class="operator">::</span>ThemeWidget(<span class="type">QWidget</span> <span class="operator">*</span>parent) :
<span class="type">QWidget</span>(parent)<span class="operator">,</span>
m_listCount(<span class="number">3</span>)<span class="operator">,</span>
m_valueMax(<span class="number">10</span>)<span class="operator">,</span>
m_valueCount(<span class="number">7</span>)<span class="operator">,</span>
m_dataTable(generateRandomData(m_listCount<span class="operator">,</span> m_valueMax<span class="operator">,</span> m_valueCount))<span class="operator">,</span>
m_themeComboBox(createThemeBox())<span class="operator">,</span>
m_antialiasCheckBox(<span class="keyword">new</span> <span class="type">QCheckBox</span>(<span class="string">"Anti-aliasing"</span>))<span class="operator">,</span>
m_animatedComboBox(createAnimationBox())<span class="operator">,</span>
m_legendComboBox(createLegendBox())
{
connectSignals();
<span class="comment">// create layout</span>
<span class="type">QGridLayout</span> <span class="operator">*</span>baseLayout <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QGridLayout</span>();
<span class="type">QHBoxLayout</span> <span class="operator">*</span>settingsLayout <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QHBoxLayout</span>();
settingsLayout<span class="operator">-</span><span class="operator">></span>addWidget(<span class="keyword">new</span> <span class="type">QLabel</span>(<span class="string">"Theme:"</span>));
settingsLayout<span class="operator">-</span><span class="operator">></span>addWidget(m_themeComboBox);
settingsLayout<span class="operator">-</span><span class="operator">></span>addWidget(<span class="keyword">new</span> <span class="type">QLabel</span>(<span class="string">"Animation:"</span>));
settingsLayout<span class="operator">-</span><span class="operator">></span>addWidget(m_animatedComboBox);
settingsLayout<span class="operator">-</span><span class="operator">></span>addWidget(<span class="keyword">new</span> <span class="type">QLabel</span>(<span class="string">"Legend:"</span>));
settingsLayout<span class="operator">-</span><span class="operator">></span>addWidget(m_legendComboBox);
settingsLayout<span class="operator">-</span><span class="operator">></span>addWidget(m_antialiasCheckBox);
settingsLayout<span class="operator">-</span><span class="operator">></span>addStretch();
baseLayout<span class="operator">-</span><span class="operator">></span>addLayout(settingsLayout<span class="operator">,</span> <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> <span class="number">3</span>);
<span class="comment">//create charts</span>
<span class="type"><a href="qchartview.html">QChartView</a></span> <span class="operator">*</span>chartView;
chartView <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qchartview.html">QChartView</a></span>(createAreaChart());
baseLayout<span class="operator">-</span><span class="operator">></span>addWidget(chartView<span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="number">0</span>);
m_charts <span class="operator"><</span><span class="operator"><</span> chartView;
chartView <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qchartview.html">QChartView</a></span>(createBarChart(m_valueCount));
baseLayout<span class="operator">-</span><span class="operator">></span>addWidget(chartView<span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="number">1</span>);
m_charts <span class="operator"><</span><span class="operator"><</span> chartView;
chartView <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qchartview.html">QChartView</a></span>(createLineChart());
baseLayout<span class="operator">-</span><span class="operator">></span>addWidget(chartView<span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="number">2</span>);
m_charts <span class="operator"><</span><span class="operator"><</span> chartView;
chartView <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qchartview.html">QChartView</a></span>(createPieChart());
<span class="comment">// Funny things happen if the pie slice labels do not fit the screen, so we ignore size policy</span>
chartView<span class="operator">-</span><span class="operator">></span>setSizePolicy(<span class="type">QSizePolicy</span><span class="operator">::</span>Ignored<span class="operator">,</span> <span class="type">QSizePolicy</span><span class="operator">::</span>Ignored);
baseLayout<span class="operator">-</span><span class="operator">></span>addWidget(chartView<span class="operator">,</span> <span class="number">2</span><span class="operator">,</span> <span class="number">0</span>);
m_charts <span class="operator"><</span><span class="operator"><</span> chartView;
chartView <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qchartview.html">QChartView</a></span>(createSplineChart());
baseLayout<span class="operator">-</span><span class="operator">></span>addWidget(chartView<span class="operator">,</span> <span class="number">2</span><span class="operator">,</span> <span class="number">1</span>);
m_charts <span class="operator"><</span><span class="operator"><</span> chartView;
chartView <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qchartview.html">QChartView</a></span>(createScatterChart());
baseLayout<span class="operator">-</span><span class="operator">></span>addWidget(chartView<span class="operator">,</span> <span class="number">2</span><span class="operator">,</span> <span class="number">2</span>);
m_charts <span class="operator"><</span><span class="operator"><</span> chartView;
setLayout(baseLayout);
<span class="comment">// Set defaults</span>
m_antialiasCheckBox<span class="operator">-</span><span class="operator">></span>setChecked(<span class="keyword">true</span>);
updateUI();
}
ThemeWidget<span class="operator">::</span><span class="operator">~</span>ThemeWidget()
{
}
<span class="type">void</span> ThemeWidget<span class="operator">::</span>connectSignals()
{
connect(m_themeComboBox<span class="operator">,</span>
<span class="keyword">static_cast</span><span class="operator"><</span><span class="type">void</span> (<span class="type">QComboBox</span><span class="operator">::</span><span class="operator">*</span>)(<span class="type">int</span>)<span class="operator">></span>(<span class="operator">&</span><span class="type">QComboBox</span><span class="operator">::</span>currentIndexChanged)<span class="operator">,</span>
<span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>ThemeWidget<span class="operator">::</span>updateUI);
connect(m_antialiasCheckBox<span class="operator">,</span> <span class="operator">&</span><span class="type">QCheckBox</span><span class="operator">::</span>toggled<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>ThemeWidget<span class="operator">::</span>updateUI);
connect(m_animatedComboBox<span class="operator">,</span>
<span class="keyword">static_cast</span><span class="operator"><</span><span class="type">void</span> (<span class="type">QComboBox</span><span class="operator">::</span><span class="operator">*</span>)(<span class="type">int</span>)<span class="operator">></span>(<span class="operator">&</span><span class="type">QComboBox</span><span class="operator">::</span>currentIndexChanged)<span class="operator">,</span>
<span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>ThemeWidget<span class="operator">::</span>updateUI);
connect(m_legendComboBox<span class="operator">,</span>
<span class="keyword">static_cast</span><span class="operator"><</span><span class="type">void</span> (<span class="type">QComboBox</span><span class="operator">::</span><span class="operator">*</span>)(<span class="type">int</span>)<span class="operator">></span>(<span class="operator">&</span><span class="type">QComboBox</span><span class="operator">::</span>currentIndexChanged)<span class="operator">,</span>
<span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>ThemeWidget<span class="operator">::</span>updateUI);
}
DataTable ThemeWidget<span class="operator">::</span>generateRandomData(<span class="type">int</span> listCount<span class="operator">,</span> <span class="type">int</span> valueMax<span class="operator">,</span> <span class="type">int</span> valueCount) <span class="keyword">const</span>
{
DataTable dataTable;
<span class="comment">// set seed for random stuff</span>
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()));
<span class="comment">// generate random data</span>
<span class="keyword">for</span> (<span class="type">int</span> i(<span class="number">0</span>); i <span class="operator"><</span> listCount; i<span class="operator">+</span><span class="operator">+</span>) {
DataList dataList;
<span class="type">qreal</span> yValue(<span class="number">0</span>);
<span class="keyword">for</span> (<span class="type">int</span> j(<span class="number">0</span>); j <span class="operator"><</span> valueCount; j<span class="operator">+</span><span class="operator">+</span>) {
yValue <span class="operator">=</span> yValue <span class="operator">+</span> (<span class="type">qreal</span>)(qrand() <span class="operator">%</span> valueMax) <span class="operator">/</span> (<span class="type">qreal</span>) valueCount;
<span class="type">QPointF</span> value((j <span class="operator">+</span> (<span class="type">qreal</span>) rand() <span class="operator">/</span> (<span class="type">qreal</span>) RAND_MAX) <span class="operator">*</span> ((<span class="type">qreal</span>) m_valueMax <span class="operator">/</span> (<span class="type">qreal</span>) valueCount)<span class="operator">,</span>
yValue);
<span class="type">QString</span> label <span class="operator">=</span> <span class="string">"Slice "</span> <span class="operator">+</span> <span class="type">QString</span><span class="operator">::</span>number(i) <span class="operator">+</span> <span class="string">":"</span> <span class="operator">+</span> <span class="type">QString</span><span class="operator">::</span>number(j);
dataList <span class="operator"><</span><span class="operator"><</span> Data(value<span class="operator">,</span> label);
}
dataTable <span class="operator"><</span><span class="operator"><</span> dataList;
}
<span class="keyword">return</span> dataTable;
}
<span class="type">QComboBox</span> <span class="operator">*</span>ThemeWidget<span class="operator">::</span>createThemeBox() <span class="keyword">const</span>
{
<span class="comment">// settings layout</span>
<span class="type">QComboBox</span> <span class="operator">*</span>themeComboBox <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QComboBox</span>();
themeComboBox<span class="operator">-</span><span class="operator">></span>addItem(<span class="string">"Light"</span><span class="operator">,</span> <span class="type"><a href="qchart.html">QChart</a></span><span class="operator">::</span>ChartThemeLight);
themeComboBox<span class="operator">-</span><span class="operator">></span>addItem(<span class="string">"Blue Cerulean"</span><span class="operator">,</span> <span class="type"><a href="qchart.html">QChart</a></span><span class="operator">::</span>ChartThemeBlueCerulean);
themeComboBox<span class="operator">-</span><span class="operator">></span>addItem(<span class="string">"Dark"</span><span class="operator">,</span> <span class="type"><a href="qchart.html">QChart</a></span><span class="operator">::</span>ChartThemeDark);
themeComboBox<span class="operator">-</span><span class="operator">></span>addItem(<span class="string">"Brown Sand"</span><span class="operator">,</span> <span class="type"><a href="qchart.html">QChart</a></span><span class="operator">::</span>ChartThemeBrownSand);
themeComboBox<span class="operator">-</span><span class="operator">></span>addItem(<span class="string">"Blue NCS"</span><span class="operator">,</span> <span class="type"><a href="qchart.html">QChart</a></span><span class="operator">::</span>ChartThemeBlueNcs);
themeComboBox<span class="operator">-</span><span class="operator">></span>addItem(<span class="string">"High Contrast"</span><span class="operator">,</span> <span class="type"><a href="qchart.html">QChart</a></span><span class="operator">::</span>ChartThemeHighContrast);
themeComboBox<span class="operator">-</span><span class="operator">></span>addItem(<span class="string">"Blue Icy"</span><span class="operator">,</span> <span class="type"><a href="qchart.html">QChart</a></span><span class="operator">::</span>ChartThemeBlueIcy);
themeComboBox<span class="operator">-</span><span class="operator">></span>addItem(<span class="string">"Qt"</span><span class="operator">,</span> <span class="type"><a href="qchart.html">QChart</a></span><span class="operator">::</span>ChartThemeQt);
<span class="keyword">return</span> themeComboBox;
}
<span class="type">QComboBox</span> <span class="operator">*</span>ThemeWidget<span class="operator">::</span>createAnimationBox() <span class="keyword">const</span>
{
<span class="comment">// settings layout</span>
<span class="type">QComboBox</span> <span class="operator">*</span>animationComboBox <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QComboBox</span>();
animationComboBox<span class="operator">-</span><span class="operator">></span>addItem(<span class="string">"No Animations"</span><span class="operator">,</span> <span class="type"><a href="qchart.html">QChart</a></span><span class="operator">::</span>NoAnimation);
animationComboBox<span class="operator">-</span><span class="operator">></span>addItem(<span class="string">"GridAxis Animations"</span><span class="operator">,</span> <span class="type"><a href="qchart.html">QChart</a></span><span class="operator">::</span>GridAxisAnimations);
animationComboBox<span class="operator">-</span><span class="operator">></span>addItem(<span class="string">"Series Animations"</span><span class="operator">,</span> <span class="type"><a href="qchart.html">QChart</a></span><span class="operator">::</span>SeriesAnimations);
animationComboBox<span class="operator">-</span><span class="operator">></span>addItem(<span class="string">"All Animations"</span><span class="operator">,</span> <span class="type"><a href="qchart.html">QChart</a></span><span class="operator">::</span>AllAnimations);
<span class="keyword">return</span> animationComboBox;
}
<span class="type">QComboBox</span> <span class="operator">*</span>ThemeWidget<span class="operator">::</span>createLegendBox() <span class="keyword">const</span>
{
<span class="type">QComboBox</span> <span class="operator">*</span>legendComboBox <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QComboBox</span>();
legendComboBox<span class="operator">-</span><span class="operator">></span>addItem(<span class="string">"No Legend "</span><span class="operator">,</span> <span class="number">0</span>);
legendComboBox<span class="operator">-</span><span class="operator">></span>addItem(<span class="string">"Legend Top"</span><span class="operator">,</span> <span class="type">Qt</span><span class="operator">::</span>AlignTop);
legendComboBox<span class="operator">-</span><span class="operator">></span>addItem(<span class="string">"Legend Bottom"</span><span class="operator">,</span> <span class="type">Qt</span><span class="operator">::</span>AlignBottom);
legendComboBox<span class="operator">-</span><span class="operator">></span>addItem(<span class="string">"Legend Left"</span><span class="operator">,</span> <span class="type">Qt</span><span class="operator">::</span>AlignLeft);
legendComboBox<span class="operator">-</span><span class="operator">></span>addItem(<span class="string">"Legend Right"</span><span class="operator">,</span> <span class="type">Qt</span><span class="operator">::</span>AlignRight);
<span class="keyword">return</span> legendComboBox;
}
<span class="type"><a href="qchart.html">QChart</a></span> <span class="operator">*</span>ThemeWidget<span class="operator">::</span>createAreaChart() <span class="keyword">const</span>
{
<span class="type"><a href="qchart.html">QChart</a></span> <span class="operator">*</span>chart <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qchart.html">QChart</a></span>();
chart<span class="operator">-</span><span class="operator">></span>setTitle(<span class="string">"Area chart"</span>);
<span class="comment">// The lower series initialized to zero values</span>
<span class="type"><a href="qlineseries.html">QLineSeries</a></span> <span class="operator">*</span>lowerSeries <span class="operator">=</span> <span class="number">0</span>;
<span class="type">QString</span> name(<span class="string">"Series "</span>);
<span class="type">int</span> nameIndex <span class="operator">=</span> <span class="number">0</span>;
<span class="keyword">for</span> (<span class="type">int</span> i(<span class="number">0</span>); i <span class="operator"><</span> m_dataTable<span class="operator">.</span>count(); i<span class="operator">+</span><span class="operator">+</span>) {
<span class="type"><a href="qlineseries.html">QLineSeries</a></span> <span class="operator">*</span>upperSeries <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qlineseries.html">QLineSeries</a></span>(chart);
<span class="keyword">for</span> (<span class="type">int</span> j(<span class="number">0</span>); j <span class="operator"><</span> m_dataTable<span class="operator">[</span>i<span class="operator">]</span><span class="operator">.</span>count(); j<span class="operator">+</span><span class="operator">+</span>) {
Data data <span class="operator">=</span> m_dataTable<span class="operator">[</span>i<span class="operator">]</span><span class="operator">.</span>at(j);
<span class="keyword">if</span> (lowerSeries) {
<span class="keyword">const</span> <span class="type">QVector</span><span class="operator"><</span><span class="type">QPointF</span><span class="operator">></span><span class="operator">&</span> points <span class="operator">=</span> lowerSeries<span class="operator">-</span><span class="operator">></span>pointsVector();
upperSeries<span class="operator">-</span><span class="operator">></span>append(<span class="type">QPointF</span>(j<span class="operator">,</span> points<span class="operator">[</span>i<span class="operator">]</span><span class="operator">.</span>y() <span class="operator">+</span> data<span class="operator">.</span>first<span class="operator">.</span>y()));
} <span class="keyword">else</span> {
upperSeries<span class="operator">-</span><span class="operator">></span>append(<span class="type">QPointF</span>(j<span class="operator">,</span> data<span class="operator">.</span>first<span class="operator">.</span>y()));
}
}
<span class="type"><a href="qareaseries.html">QAreaSeries</a></span> <span class="operator">*</span>area <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qareaseries.html">QAreaSeries</a></span>(upperSeries<span class="operator">,</span> lowerSeries);
area<span class="operator">-</span><span class="operator">></span>setName(name <span class="operator">+</span> <span class="type">QString</span><span class="operator">::</span>number(nameIndex));
nameIndex<span class="operator">+</span><span class="operator">+</span>;
chart<span class="operator">-</span><span class="operator">></span>addSeries(area);
chart<span class="operator">-</span><span class="operator">></span>createDefaultAxes();
lowerSeries <span class="operator">=</span> upperSeries;
}
<span class="keyword">return</span> chart;
}
<span class="type"><a href="qchart.html">QChart</a></span> <span class="operator">*</span>ThemeWidget<span class="operator">::</span>createBarChart(<span class="type">int</span> valueCount) <span class="keyword">const</span>
{
Q_UNUSED(valueCount);
<span class="type"><a href="qchart.html">QChart</a></span> <span class="operator">*</span>chart <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qchart.html">QChart</a></span>();
chart<span class="operator">-</span><span class="operator">></span>setTitle(<span class="string">"Bar chart"</span>);
<span class="type"><a href="qstackedbarseries.html">QStackedBarSeries</a></span> <span class="operator">*</span>series <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qstackedbarseries.html">QStackedBarSeries</a></span>(chart);
<span class="keyword">for</span> (<span class="type">int</span> i(<span class="number">0</span>); i <span class="operator"><</span> m_dataTable<span class="operator">.</span>count(); i<span class="operator">+</span><span class="operator">+</span>) {
<span class="type"><a href="qbarset.html">QBarSet</a></span> <span class="operator">*</span>set <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qbarset.html">QBarSet</a></span>(<span class="string">"Bar set "</span> <span class="operator">+</span> <span class="type">QString</span><span class="operator">::</span>number(i));
<span class="keyword">for</span> (<span class="keyword">const</span> Data <span class="operator">&</span>data : m_dataTable<span class="operator">[</span>i<span class="operator">]</span>)
<span class="operator">*</span>set <span class="operator"><</span><span class="operator"><</span> data<span class="operator">.</span>first<span class="operator">.</span>y();
series<span class="operator">-</span><span class="operator">></span>append(set);
}
chart<span class="operator">-</span><span class="operator">></span>addSeries(series);
chart<span class="operator">-</span><span class="operator">></span>createDefaultAxes();
<span class="keyword">return</span> chart;
}
<span class="type"><a href="qchart.html">QChart</a></span> <span class="operator">*</span>ThemeWidget<span class="operator">::</span>createLineChart() <span class="keyword">const</span>
{
<span class="type"><a href="qchart.html">QChart</a></span> <span class="operator">*</span>chart <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qchart.html">QChart</a></span>();
chart<span class="operator">-</span><span class="operator">></span>setTitle(<span class="string">"Line chart"</span>);
<span class="type">QString</span> name(<span class="string">"Series "</span>);
<span class="type">int</span> nameIndex <span class="operator">=</span> <span class="number">0</span>;
<span class="keyword">for</span> (<span class="keyword">const</span> DataList <span class="operator">&</span>list : m_dataTable) {
<span class="type"><a href="qlineseries.html">QLineSeries</a></span> <span class="operator">*</span>series <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qlineseries.html">QLineSeries</a></span>(chart);
<span class="keyword">for</span> (<span class="keyword">const</span> Data <span class="operator">&</span>data : list)
series<span class="operator">-</span><span class="operator">></span>append(data<span class="operator">.</span>first);
series<span class="operator">-</span><span class="operator">></span>setName(name <span class="operator">+</span> <span class="type">QString</span><span class="operator">::</span>number(nameIndex));
nameIndex<span class="operator">+</span><span class="operator">+</span>;
chart<span class="operator">-</span><span class="operator">></span>addSeries(series);
}
chart<span class="operator">-</span><span class="operator">></span>createDefaultAxes();
<span class="keyword">return</span> chart;
}
<span class="type"><a href="qchart.html">QChart</a></span> <span class="operator">*</span>ThemeWidget<span class="operator">::</span>createPieChart() <span class="keyword">const</span>
{
<span class="type"><a href="qchart.html">QChart</a></span> <span class="operator">*</span>chart <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qchart.html">QChart</a></span>();
chart<span class="operator">-</span><span class="operator">></span>setTitle(<span class="string">"Pie chart"</span>);
<span class="type">qreal</span> pieSize <span class="operator">=</span> <span class="number">1.0</span> <span class="operator">/</span> m_dataTable<span class="operator">.</span>count();
<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_dataTable<span class="operator">.</span>count(); i<span class="operator">+</span><span class="operator">+</span>) {
<span class="type"><a href="qpieseries.html">QPieSeries</a></span> <span class="operator">*</span>series <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qpieseries.html">QPieSeries</a></span>(chart);
<span class="keyword">for</span> (<span class="keyword">const</span> Data <span class="operator">&</span>data : m_dataTable<span class="operator">[</span>i<span class="operator">]</span>) {
<span class="type"><a href="qpieslice.html">QPieSlice</a></span> <span class="operator">*</span>slice <span class="operator">=</span> series<span class="operator">-</span><span class="operator">></span>append(data<span class="operator">.</span>second<span class="operator">,</span> data<span class="operator">.</span>first<span class="operator">.</span>y());
<span class="keyword">if</span> (data <span class="operator">=</span><span class="operator">=</span> m_dataTable<span class="operator">[</span>i<span class="operator">]</span><span class="operator">.</span>first()) {
slice<span class="operator">-</span><span class="operator">></span>setLabelVisible();
slice<span class="operator">-</span><span class="operator">></span>setExploded();
}
}
<span class="type">qreal</span> hPos <span class="operator">=</span> (pieSize <span class="operator">/</span> <span class="number">2</span>) <span class="operator">+</span> (i <span class="operator">/</span> (<span class="type">qreal</span>) m_dataTable<span class="operator">.</span>count());
series<span class="operator">-</span><span class="operator">></span>setPieSize(pieSize);
series<span class="operator">-</span><span class="operator">></span>setHorizontalPosition(hPos);
series<span class="operator">-</span><span class="operator">></span>setVerticalPosition(<span class="number">0.5</span>);
chart<span class="operator">-</span><span class="operator">></span>addSeries(series);
}
<span class="keyword">return</span> chart;
}
<span class="type"><a href="qchart.html">QChart</a></span> <span class="operator">*</span>ThemeWidget<span class="operator">::</span>createSplineChart() <span class="keyword">const</span>
{
<span class="comment">// spine chart</span>
<span class="type"><a href="qchart.html">QChart</a></span> <span class="operator">*</span>chart <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qchart.html">QChart</a></span>();
chart<span class="operator">-</span><span class="operator">></span>setTitle(<span class="string">"Spline chart"</span>);
<span class="type">QString</span> name(<span class="string">"Series "</span>);
<span class="type">int</span> nameIndex <span class="operator">=</span> <span class="number">0</span>;
<span class="keyword">for</span> (<span class="keyword">const</span> DataList <span class="operator">&</span>list : m_dataTable) {
<span class="type"><a href="qsplineseries.html">QSplineSeries</a></span> <span class="operator">*</span>series <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qsplineseries.html">QSplineSeries</a></span>(chart);
<span class="keyword">for</span> (<span class="keyword">const</span> Data <span class="operator">&</span>data : list)
series<span class="operator">-</span><span class="operator">></span>append(data<span class="operator">.</span>first);
series<span class="operator">-</span><span class="operator">></span>setName(name <span class="operator">+</span> <span class="type">QString</span><span class="operator">::</span>number(nameIndex));
nameIndex<span class="operator">+</span><span class="operator">+</span>;
chart<span class="operator">-</span><span class="operator">></span>addSeries(series);
}
chart<span class="operator">-</span><span class="operator">></span>createDefaultAxes();
<span class="keyword">return</span> chart;
}
<span class="type"><a href="qchart.html">QChart</a></span> <span class="operator">*</span>ThemeWidget<span class="operator">::</span>createScatterChart() <span class="keyword">const</span>
{
<span class="comment">// scatter chart</span>
<span class="type"><a href="qchart.html">QChart</a></span> <span class="operator">*</span>chart <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qchart.html">QChart</a></span>();
chart<span class="operator">-</span><span class="operator">></span>setTitle(<span class="string">"Scatter chart"</span>);
<span class="type">QString</span> name(<span class="string">"Series "</span>);
<span class="type">int</span> nameIndex <span class="operator">=</span> <span class="number">0</span>;
<span class="keyword">for</span> (<span class="keyword">const</span> DataList <span class="operator">&</span>list : m_dataTable) {
<span class="type"><a href="qscatterseries.html">QScatterSeries</a></span> <span class="operator">*</span>series <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qscatterseries.html">QScatterSeries</a></span>(chart);
<span class="keyword">for</span> (<span class="keyword">const</span> Data <span class="operator">&</span>data : list)
series<span class="operator">-</span><span class="operator">></span>append(data<span class="operator">.</span>first);
series<span class="operator">-</span><span class="operator">></span>setName(name <span class="operator">+</span> <span class="type">QString</span><span class="operator">::</span>number(nameIndex));
nameIndex<span class="operator">+</span><span class="operator">+</span>;
chart<span class="operator">-</span><span class="operator">></span>addSeries(series);
}
chart<span class="operator">-</span><span class="operator">></span>createDefaultAxes();
<span class="keyword">return</span> chart;
}
<span class="type">void</span> ThemeWidget<span class="operator">::</span>updateUI()
{
<span class="type"><a href="qchart.html">QChart</a></span><span class="operator">::</span>ChartTheme theme <span class="operator">=</span> <span class="keyword">static_cast</span><span class="operator"><</span><span class="type"><a href="qchart.html">QChart</a></span><span class="operator">::</span>ChartTheme<span class="operator">></span>(
m_themeComboBox<span class="operator">-</span><span class="operator">></span>itemData(m_themeComboBox<span class="operator">-</span><span class="operator">></span>currentIndex())<span class="operator">.</span>toInt());
<span class="keyword">const</span> <span class="keyword">auto</span> charts <span class="operator">=</span> m_charts;
<span class="keyword">if</span> (m_charts<span class="operator">.</span>at(<span class="number">0</span>)<span class="operator">-</span><span class="operator">></span>chart()<span class="operator">-</span><span class="operator">></span>theme() <span class="operator">!</span><span class="operator">=</span> theme) {
<span class="keyword">for</span> (<span class="type"><a href="qchartview.html">QChartView</a></span> <span class="operator">*</span>chartView : charts)
chartView<span class="operator">-</span><span class="operator">></span>chart()<span class="operator">-</span><span class="operator">></span>setTheme(theme);
<span class="type">QPalette</span> pal <span class="operator">=</span> window()<span class="operator">-</span><span class="operator">></span>palette();
<span class="keyword">if</span> (theme <span class="operator">=</span><span class="operator">=</span> <span class="type"><a href="qchart.html">QChart</a></span><span class="operator">::</span>ChartThemeLight) {
pal<span class="operator">.</span>setColor(<span class="type">QPalette</span><span class="operator">::</span>Window<span class="operator">,</span> <span class="type">QRgb</span>(<span class="number">0xf0f0f0</span>));
pal<span class="operator">.</span>setColor(<span class="type">QPalette</span><span class="operator">::</span>WindowText<span class="operator">,</span> <span class="type">QRgb</span>(<span class="number">0x404044</span>));
} <span class="keyword">else</span> <span class="keyword">if</span> (theme <span class="operator">=</span><span class="operator">=</span> <span class="type"><a href="qchart.html">QChart</a></span><span class="operator">::</span>ChartThemeDark) {
pal<span class="operator">.</span>setColor(<span class="type">QPalette</span><span class="operator">::</span>Window<span class="operator">,</span> <span class="type">QRgb</span>(<span class="number">0x121218</span>));
pal<span class="operator">.</span>setColor(<span class="type">QPalette</span><span class="operator">::</span>WindowText<span class="operator">,</span> <span class="type">QRgb</span>(<span class="number">0xd6d6d6</span>));
} <span class="keyword">else</span> <span class="keyword">if</span> (theme <span class="operator">=</span><span class="operator">=</span> <span class="type"><a href="qchart.html">QChart</a></span><span class="operator">::</span>ChartThemeBlueCerulean) {
pal<span class="operator">.</span>setColor(<span class="type">QPalette</span><span class="operator">::</span>Window<span class="operator">,</span> <span class="type">QRgb</span>(<span class="number">0x40434a</span>));
pal<span class="operator">.</span>setColor(<span class="type">QPalette</span><span class="operator">::</span>WindowText<span class="operator">,</span> <span class="type">QRgb</span>(<span class="number">0xd6d6d6</span>));
} <span class="keyword">else</span> <span class="keyword">if</span> (theme <span class="operator">=</span><span class="operator">=</span> <span class="type"><a href="qchart.html">QChart</a></span><span class="operator">::</span>ChartThemeBrownSand) {
pal<span class="operator">.</span>setColor(<span class="type">QPalette</span><span class="operator">::</span>Window<span class="operator">,</span> <span class="type">QRgb</span>(<span class="number">0x9e8965</span>));
pal<span class="operator">.</span>setColor(<span class="type">QPalette</span><span class="operator">::</span>WindowText<span class="operator">,</span> <span class="type">QRgb</span>(<span class="number">0x404044</span>));
} <span class="keyword">else</span> <span class="keyword">if</span> (theme <span class="operator">=</span><span class="operator">=</span> <span class="type"><a href="qchart.html">QChart</a></span><span class="operator">::</span>ChartThemeBlueNcs) {
pal<span class="operator">.</span>setColor(<span class="type">QPalette</span><span class="operator">::</span>Window<span class="operator">,</span> <span class="type">QRgb</span>(<span class="number">0x018bba</span>));
pal<span class="operator">.</span>setColor(<span class="type">QPalette</span><span class="operator">::</span>WindowText<span class="operator">,</span> <span class="type">QRgb</span>(<span class="number">0x404044</span>));
} <span class="keyword">else</span> <span class="keyword">if</span> (theme <span class="operator">=</span><span class="operator">=</span> <span class="type"><a href="qchart.html">QChart</a></span><span class="operator">::</span>ChartThemeHighContrast) {
pal<span class="operator">.</span>setColor(<span class="type">QPalette</span><span class="operator">::</span>Window<span class="operator">,</span> <span class="type">QRgb</span>(<span class="number">0xffab03</span>));
pal<span class="operator">.</span>setColor(<span class="type">QPalette</span><span class="operator">::</span>WindowText<span class="operator">,</span> <span class="type">QRgb</span>(<span class="number">0x181818</span>));
} <span class="keyword">else</span> <span class="keyword">if</span> (theme <span class="operator">=</span><span class="operator">=</span> <span class="type"><a href="qchart.html">QChart</a></span><span class="operator">::</span>ChartThemeBlueIcy) {
pal<span class="operator">.</span>setColor(<span class="type">QPalette</span><span class="operator">::</span>Window<span class="operator">,</span> <span class="type">QRgb</span>(<span class="number">0xcee7f0</span>));
pal<span class="operator">.</span>setColor(<span class="type">QPalette</span><span class="operator">::</span>WindowText<span class="operator">,</span> <span class="type">QRgb</span>(<span class="number">0x404044</span>));
} <span class="keyword">else</span> {
pal<span class="operator">.</span>setColor(<span class="type">QPalette</span><span class="operator">::</span>Window<span class="operator">,</span> <span class="type">QRgb</span>(<span class="number">0xf0f0f0</span>));
pal<span class="operator">.</span>setColor(<span class="type">QPalette</span><span class="operator">::</span>WindowText<span class="operator">,</span> <span class="type">QRgb</span>(<span class="number">0x404044</span>));
}
window()<span class="operator">-</span><span class="operator">></span>setPalette(pal);
}
bool checked <span class="operator">=</span> m_antialiasCheckBox<span class="operator">-</span><span class="operator">></span>isChecked();
<span class="keyword">for</span> (<span class="type"><a href="qchartview.html">QChartView</a></span> <span class="operator">*</span>chart : charts)
chart<span class="operator">-</span><span class="operator">></span>setRenderHint(<span class="type">QPainter</span><span class="operator">::</span>Antialiasing<span class="operator">,</span> checked);
<span class="type"><a href="qchart.html">QChart</a></span><span class="operator">::</span>AnimationOptions options(
m_animatedComboBox<span class="operator">-</span><span class="operator">></span>itemData(m_animatedComboBox<span class="operator">-</span><span class="operator">></span>currentIndex())<span class="operator">.</span>toInt());
<span class="keyword">if</span> (m_charts<span class="operator">.</span>at(<span class="number">0</span>)<span class="operator">-</span><span class="operator">></span>chart()<span class="operator">-</span><span class="operator">></span>animationOptions() <span class="operator">!</span><span class="operator">=</span> options) {
<span class="keyword">for</span> (<span class="type"><a href="qchartview.html">QChartView</a></span> <span class="operator">*</span>chartView : charts)
chartView<span class="operator">-</span><span class="operator">></span>chart()<span class="operator">-</span><span class="operator">></span>setAnimationOptions(options);
}
<span class="type">Qt</span><span class="operator">::</span>Alignment alignment(m_legendComboBox<span class="operator">-</span><span class="operator">></span>itemData(m_legendComboBox<span class="operator">-</span><span class="operator">></span>currentIndex())<span class="operator">.</span>toInt());
<span class="keyword">if</span> (<span class="operator">!</span>alignment) {
<span class="keyword">for</span> (<span class="type"><a href="qchartview.html">QChartView</a></span> <span class="operator">*</span>chartView : charts)
chartView<span class="operator">-</span><span class="operator">></span>chart()<span class="operator">-</span><span class="operator">></span>legend()<span class="operator">-</span><span class="operator">></span>hide();
} <span class="keyword">else</span> {
<span class="keyword">for</span> (<span class="type"><a href="qchartview.html">QChartView</a></span> <span class="operator">*</span>chartView : charts) {
chartView<span class="operator">-</span><span class="operator">></span>chart()<span class="operator">-</span><span class="operator">></span>legend()<span class="operator">-</span><span class="operator">></span>setAlignment(alignment);
chartView<span class="operator">-</span><span class="operator">></span>chart()<span class="operator">-</span><span class="operator">></span>legend()<span class="operator">-</span><span class="operator">></span>show();
}
}
}
</pre>
</div>
<!-- @@@chartthemes/themewidget.cpp -->
</div>
</div>
</div>
</div>
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<p>
<acronym title="Copyright">©</acronym> 2017 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
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