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<h1 class="title">mainwidget.cpp Example File</h1>
<span class="subtitle">piechartcustomization/mainwidget.cpp</span>
<!-- $$$piechartcustomization/mainwidget.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 "mainwidget.h"</span>
<span class="preprocessor">#include "customslice.h"</span>
<span class="preprocessor">#include "pentool.h"</span>
<span class="preprocessor">#include "brushtool.h"</span>
<span class="preprocessor">#include <QtWidgets/QPushButton></span>
<span class="preprocessor">#include <QtWidgets/QComboBox></span>
<span class="preprocessor">#include <QtWidgets/QCheckBox></span>
<span class="preprocessor">#include <QtWidgets/QLineEdit></span>
<span class="preprocessor">#include <QtWidgets/QGroupBox></span>
<span class="preprocessor">#include <QtWidgets/QDoubleSpinBox></span>
<span class="preprocessor">#include <QtWidgets/QFormLayout></span>
<span class="preprocessor">#include <QtWidgets/QFontDialog></span>
<span class="preprocessor">#include <QtCharts/QChartView></span>
<span class="preprocessor">#include <QtCharts/QPieSeries></span>
QT_CHARTS_USE_NAMESPACE
MainWidget<span class="operator">::</span>MainWidget(<span class="type">QWidget</span> <span class="operator">*</span>parent)
: <span class="type">QWidget</span>(parent)<span class="operator">,</span>
m_slice(<span class="number">0</span>)
{
<span class="comment">// create 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">"Piechart customization"</span>);
chart<span class="operator">-</span><span class="operator">></span>setAnimationOptions(<span class="type"><a href="qchart.html">QChart</a></span><span class="operator">::</span>AllAnimations);
<span class="comment">// create series</span>
m_series <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qpieseries.html">QPieSeries</a></span>();
<span class="operator">*</span>m_series <span class="operator"><</span><span class="operator"><</span> <span class="keyword">new</span> CustomSlice(<span class="string">"Slice 1"</span><span class="operator">,</span> <span class="number">10.0</span>);
<span class="operator">*</span>m_series <span class="operator"><</span><span class="operator"><</span> <span class="keyword">new</span> CustomSlice(<span class="string">"Slice 2"</span><span class="operator">,</span> <span class="number">20.0</span>);
<span class="operator">*</span>m_series <span class="operator"><</span><span class="operator"><</span> <span class="keyword">new</span> CustomSlice(<span class="string">"Slice 3"</span><span class="operator">,</span> <span class="number">30.0</span>);
<span class="operator">*</span>m_series <span class="operator"><</span><span class="operator"><</span> <span class="keyword">new</span> CustomSlice(<span class="string">"Slice 4"</span><span class="operator">,</span> <span class="number">40.0</span>);
<span class="operator">*</span>m_series <span class="operator"><</span><span class="operator"><</span> <span class="keyword">new</span> CustomSlice(<span class="string">"Slice 5"</span><span class="operator">,</span> <span class="number">50.0</span>);
m_series<span class="operator">-</span><span class="operator">></span>setLabelsVisible();
chart<span class="operator">-</span><span class="operator">></span>addSeries(m_series);
connect(m_series<span class="operator">,</span> <span class="operator">&</span><span class="type"><a href="qpieseries.html">QPieSeries</a></span><span class="operator">::</span>clicked<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>MainWidget<span class="operator">::</span>handleSliceClicked);
<span class="comment">// chart settings</span>
m_themeComboBox <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QComboBox</span>();
m_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);
m_themeComboBox<span class="operator">-</span><span class="operator">></span>addItem(<span class="string">"BlueCerulean"</span><span class="operator">,</span> <span class="type"><a href="qchart.html">QChart</a></span><span class="operator">::</span>ChartThemeBlueCerulean);
m_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);
m_themeComboBox<span class="operator">-</span><span class="operator">></span>addItem(<span class="string">"BrownSand"</span><span class="operator">,</span> <span class="type"><a href="qchart.html">QChart</a></span><span class="operator">::</span>ChartThemeBrownSand);
m_themeComboBox<span class="operator">-</span><span class="operator">></span>addItem(<span class="string">"BlueNcs"</span><span class="operator">,</span> <span class="type"><a href="qchart.html">QChart</a></span><span class="operator">::</span>ChartThemeBlueNcs);
m_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);
m_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);
m_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);
m_aaCheckBox <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QCheckBox</span>();
m_animationsCheckBox <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QCheckBox</span>();
m_animationsCheckBox<span class="operator">-</span><span class="operator">></span>setCheckState(<span class="type">Qt</span><span class="operator">::</span>Checked);
m_legendCheckBox <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QCheckBox</span>();
<span class="type">QFormLayout</span> <span class="operator">*</span>chartSettingsLayout <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QFormLayout</span>();
chartSettingsLayout<span class="operator">-</span><span class="operator">></span>addRow(<span class="string">"Theme"</span><span class="operator">,</span> m_themeComboBox);
chartSettingsLayout<span class="operator">-</span><span class="operator">></span>addRow(<span class="string">"Antialiasing"</span><span class="operator">,</span> m_aaCheckBox);
chartSettingsLayout<span class="operator">-</span><span class="operator">></span>addRow(<span class="string">"Animations"</span><span class="operator">,</span> m_animationsCheckBox);
chartSettingsLayout<span class="operator">-</span><span class="operator">></span>addRow(<span class="string">"Legend"</span><span class="operator">,</span> m_legendCheckBox);
<span class="type">QGroupBox</span> <span class="operator">*</span>chartSettings <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QGroupBox</span>(<span class="string">"Chart"</span>);
chartSettings<span class="operator">-</span><span class="operator">></span>setLayout(chartSettingsLayout);
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>MainWidget<span class="operator">::</span>updateChartSettings);
connect(m_aaCheckBox<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>MainWidget<span class="operator">::</span>updateChartSettings);
connect(m_animationsCheckBox<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>MainWidget<span class="operator">::</span>updateChartSettings);
connect(m_legendCheckBox<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>MainWidget<span class="operator">::</span>updateChartSettings);
<span class="comment">// series settings</span>
m_hPosition <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QDoubleSpinBox</span>();
m_hPosition<span class="operator">-</span><span class="operator">></span>setMinimum(<span class="number">0.0</span>);
m_hPosition<span class="operator">-</span><span class="operator">></span>setMaximum(<span class="number">1.0</span>);
m_hPosition<span class="operator">-</span><span class="operator">></span>setSingleStep(<span class="number">0.1</span>);
m_hPosition<span class="operator">-</span><span class="operator">></span>setValue(m_series<span class="operator">-</span><span class="operator">></span>horizontalPosition());
m_vPosition <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QDoubleSpinBox</span>();
m_vPosition<span class="operator">-</span><span class="operator">></span>setMinimum(<span class="number">0.0</span>);
m_vPosition<span class="operator">-</span><span class="operator">></span>setMaximum(<span class="number">1.0</span>);
m_vPosition<span class="operator">-</span><span class="operator">></span>setSingleStep(<span class="number">0.1</span>);
m_vPosition<span class="operator">-</span><span class="operator">></span>setValue(m_series<span class="operator">-</span><span class="operator">></span>verticalPosition());
m_sizeFactor <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QDoubleSpinBox</span>();
m_sizeFactor<span class="operator">-</span><span class="operator">></span>setMinimum(<span class="number">0.0</span>);
m_sizeFactor<span class="operator">-</span><span class="operator">></span>setMaximum(<span class="number">1.0</span>);
m_sizeFactor<span class="operator">-</span><span class="operator">></span>setSingleStep(<span class="number">0.1</span>);
m_sizeFactor<span class="operator">-</span><span class="operator">></span>setValue(m_series<span class="operator">-</span><span class="operator">></span>pieSize());
m_startAngle <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QDoubleSpinBox</span>();
m_startAngle<span class="operator">-</span><span class="operator">></span>setMinimum(<span class="operator">-</span><span class="number">720</span>);
m_startAngle<span class="operator">-</span><span class="operator">></span>setMaximum(<span class="number">720</span>);
m_startAngle<span class="operator">-</span><span class="operator">></span>setValue(m_series<span class="operator">-</span><span class="operator">></span>pieStartAngle());
m_startAngle<span class="operator">-</span><span class="operator">></span>setSingleStep(<span class="number">1</span>);
m_endAngle <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QDoubleSpinBox</span>();
m_endAngle<span class="operator">-</span><span class="operator">></span>setMinimum(<span class="operator">-</span><span class="number">720</span>);
m_endAngle<span class="operator">-</span><span class="operator">></span>setMaximum(<span class="number">720</span>);
m_endAngle<span class="operator">-</span><span class="operator">></span>setValue(m_series<span class="operator">-</span><span class="operator">></span>pieEndAngle());
m_endAngle<span class="operator">-</span><span class="operator">></span>setSingleStep(<span class="number">1</span>);
m_holeSize <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QDoubleSpinBox</span>();
m_holeSize<span class="operator">-</span><span class="operator">></span>setMinimum(<span class="number">0.0</span>);
m_holeSize<span class="operator">-</span><span class="operator">></span>setMaximum(<span class="number">1.0</span>);
m_holeSize<span class="operator">-</span><span class="operator">></span>setSingleStep(<span class="number">0.1</span>);
m_holeSize<span class="operator">-</span><span class="operator">></span>setValue(m_series<span class="operator">-</span><span class="operator">></span>holeSize());
<span class="type">QPushButton</span> <span class="operator">*</span>appendSlice <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QPushButton</span>(<span class="string">"Append slice"</span>);
<span class="type">QPushButton</span> <span class="operator">*</span>insertSlice <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QPushButton</span>(<span class="string">"Insert slice"</span>);
<span class="type">QPushButton</span> <span class="operator">*</span>removeSlice <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QPushButton</span>(<span class="string">"Remove selected slice"</span>);
<span class="type">QFormLayout</span> <span class="operator">*</span>seriesSettingsLayout <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QFormLayout</span>();
seriesSettingsLayout<span class="operator">-</span><span class="operator">></span>addRow(<span class="string">"Horizontal position"</span><span class="operator">,</span> m_hPosition);
seriesSettingsLayout<span class="operator">-</span><span class="operator">></span>addRow(<span class="string">"Vertical position"</span><span class="operator">,</span> m_vPosition);
seriesSettingsLayout<span class="operator">-</span><span class="operator">></span>addRow(<span class="string">"Size factor"</span><span class="operator">,</span> m_sizeFactor);
seriesSettingsLayout<span class="operator">-</span><span class="operator">></span>addRow(<span class="string">"Start angle"</span><span class="operator">,</span> m_startAngle);
seriesSettingsLayout<span class="operator">-</span><span class="operator">></span>addRow(<span class="string">"End angle"</span><span class="operator">,</span> m_endAngle);
seriesSettingsLayout<span class="operator">-</span><span class="operator">></span>addRow(<span class="string">"Hole size"</span><span class="operator">,</span> m_holeSize);
seriesSettingsLayout<span class="operator">-</span><span class="operator">></span>addRow(appendSlice);
seriesSettingsLayout<span class="operator">-</span><span class="operator">></span>addRow(insertSlice);
seriesSettingsLayout<span class="operator">-</span><span class="operator">></span>addRow(removeSlice);
<span class="type">QGroupBox</span> <span class="operator">*</span>seriesSettings <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QGroupBox</span>(<span class="string">"Series"</span>);
seriesSettings<span class="operator">-</span><span class="operator">></span>setLayout(seriesSettingsLayout);
connect(m_vPosition<span class="operator">,</span>
<span class="keyword">static_cast</span><span class="operator"><</span><span class="type">void</span> (<span class="type">QDoubleSpinBox</span><span class="operator">::</span><span class="operator">*</span>)(<span class="type">double</span>)<span class="operator">></span>(<span class="operator">&</span><span class="type">QDoubleSpinBox</span><span class="operator">::</span>valueChanged)<span class="operator">,</span>
<span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>MainWidget<span class="operator">::</span>updateSerieSettings);
connect(m_hPosition<span class="operator">,</span>
<span class="keyword">static_cast</span><span class="operator"><</span><span class="type">void</span> (<span class="type">QDoubleSpinBox</span><span class="operator">::</span><span class="operator">*</span>)(<span class="type">double</span>)<span class="operator">></span>(<span class="operator">&</span><span class="type">QDoubleSpinBox</span><span class="operator">::</span>valueChanged)<span class="operator">,</span>
<span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>MainWidget<span class="operator">::</span>updateSerieSettings);
connect(m_sizeFactor<span class="operator">,</span>
<span class="keyword">static_cast</span><span class="operator"><</span><span class="type">void</span> (<span class="type">QDoubleSpinBox</span><span class="operator">::</span><span class="operator">*</span>)(<span class="type">double</span>)<span class="operator">></span>(<span class="operator">&</span><span class="type">QDoubleSpinBox</span><span class="operator">::</span>valueChanged)<span class="operator">,</span>
<span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>MainWidget<span class="operator">::</span>updateSerieSettings);
connect(m_startAngle<span class="operator">,</span>
<span class="keyword">static_cast</span><span class="operator"><</span><span class="type">void</span> (<span class="type">QDoubleSpinBox</span><span class="operator">::</span><span class="operator">*</span>)(<span class="type">double</span>)<span class="operator">></span>(<span class="operator">&</span><span class="type">QDoubleSpinBox</span><span class="operator">::</span>valueChanged)<span class="operator">,</span>
<span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>MainWidget<span class="operator">::</span>updateSerieSettings);
connect(m_endAngle<span class="operator">,</span>
<span class="keyword">static_cast</span><span class="operator"><</span><span class="type">void</span> (<span class="type">QDoubleSpinBox</span><span class="operator">::</span><span class="operator">*</span>)(<span class="type">double</span>)<span class="operator">></span>(<span class="operator">&</span><span class="type">QDoubleSpinBox</span><span class="operator">::</span>valueChanged)<span class="operator">,</span>
<span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>MainWidget<span class="operator">::</span>updateSerieSettings);
connect(m_holeSize<span class="operator">,</span>
<span class="keyword">static_cast</span><span class="operator"><</span><span class="type">void</span> (<span class="type">QDoubleSpinBox</span><span class="operator">::</span><span class="operator">*</span>)(<span class="type">double</span>)<span class="operator">></span>(<span class="operator">&</span><span class="type">QDoubleSpinBox</span><span class="operator">::</span>valueChanged)<span class="operator">,</span>
<span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>MainWidget<span class="operator">::</span>updateSerieSettings);
connect(appendSlice<span class="operator">,</span> <span class="operator">&</span><span class="type">QPushButton</span><span class="operator">::</span>clicked<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>MainWidget<span class="operator">::</span>appendSlice);
connect(insertSlice<span class="operator">,</span> <span class="operator">&</span><span class="type">QPushButton</span><span class="operator">::</span>clicked<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>MainWidget<span class="operator">::</span>insertSlice);
connect(removeSlice<span class="operator">,</span> <span class="operator">&</span><span class="type">QPushButton</span><span class="operator">::</span>clicked<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>MainWidget<span class="operator">::</span>removeSlice);
<span class="comment">// slice settings</span>
m_sliceName <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QLineEdit</span>(<span class="string">"<click a slice>"</span>);
m_sliceName<span class="operator">-</span><span class="operator">></span>setSizePolicy(<span class="type">QSizePolicy</span><span class="operator">::</span>Maximum<span class="operator">,</span> <span class="type">QSizePolicy</span><span class="operator">::</span>Maximum);
m_sliceValue <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QDoubleSpinBox</span>();
m_sliceValue<span class="operator">-</span><span class="operator">></span>setMaximum(<span class="number">1000</span>);
m_sliceLabelVisible <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QCheckBox</span>();
m_sliceLabelArmFactor <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QDoubleSpinBox</span>();
m_sliceLabelArmFactor<span class="operator">-</span><span class="operator">></span>setSingleStep(<span class="number">0.01</span>);
m_sliceExploded <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QCheckBox</span>();
m_sliceExplodedFactor <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QDoubleSpinBox</span>();
m_sliceExplodedFactor<span class="operator">-</span><span class="operator">></span>setSingleStep(<span class="number">0.01</span>);
m_pen <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QPushButton</span>();
m_penTool <span class="operator">=</span> <span class="keyword">new</span> PenTool(<span class="string">"Slice pen"</span><span class="operator">,</span> <span class="keyword">this</span>);
m_brush <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QPushButton</span>();
m_brushTool <span class="operator">=</span> <span class="keyword">new</span> BrushTool(<span class="string">"Slice brush"</span><span class="operator">,</span> <span class="keyword">this</span>);
m_font <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QPushButton</span>();
m_labelBrush <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QPushButton</span>();
m_labelBrushTool <span class="operator">=</span> <span class="keyword">new</span> BrushTool(<span class="string">"Label brush"</span><span class="operator">,</span> <span class="keyword">this</span>);
m_labelPosition <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QComboBox</span>(<span class="keyword">this</span>);
m_labelPosition<span class="operator">-</span><span class="operator">></span>addItem(<span class="string">"Outside"</span><span class="operator">,</span> <span class="type"><a href="qpieslice.html">QPieSlice</a></span><span class="operator">::</span>LabelOutside);
m_labelPosition<span class="operator">-</span><span class="operator">></span>addItem(<span class="string">"Inside horizontal"</span><span class="operator">,</span> <span class="type"><a href="qpieslice.html">QPieSlice</a></span><span class="operator">::</span>LabelInsideHorizontal);
m_labelPosition<span class="operator">-</span><span class="operator">></span>addItem(<span class="string">"Inside tangential"</span><span class="operator">,</span> <span class="type"><a href="qpieslice.html">QPieSlice</a></span><span class="operator">::</span>LabelInsideTangential);
m_labelPosition<span class="operator">-</span><span class="operator">></span>addItem(<span class="string">"Inside normal"</span><span class="operator">,</span> <span class="type"><a href="qpieslice.html">QPieSlice</a></span><span class="operator">::</span>LabelInsideNormal);
<span class="type">QFormLayout</span> <span class="operator">*</span>sliceSettingsLayout <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QFormLayout</span>();
sliceSettingsLayout<span class="operator">-</span><span class="operator">></span>addRow(<span class="string">"Label"</span><span class="operator">,</span> m_sliceName);
sliceSettingsLayout<span class="operator">-</span><span class="operator">></span>addRow(<span class="string">"Value"</span><span class="operator">,</span> m_sliceValue);
sliceSettingsLayout<span class="operator">-</span><span class="operator">></span>addRow(<span class="string">"Pen"</span><span class="operator">,</span> m_pen);
sliceSettingsLayout<span class="operator">-</span><span class="operator">></span>addRow(<span class="string">"Brush"</span><span class="operator">,</span> m_brush);
sliceSettingsLayout<span class="operator">-</span><span class="operator">></span>addRow(<span class="string">"Label visible"</span><span class="operator">,</span> m_sliceLabelVisible);
sliceSettingsLayout<span class="operator">-</span><span class="operator">></span>addRow(<span class="string">"Label font"</span><span class="operator">,</span> m_font);
sliceSettingsLayout<span class="operator">-</span><span class="operator">></span>addRow(<span class="string">"Label brush"</span><span class="operator">,</span> m_labelBrush);
sliceSettingsLayout<span class="operator">-</span><span class="operator">></span>addRow(<span class="string">"Label position"</span><span class="operator">,</span> m_labelPosition);
sliceSettingsLayout<span class="operator">-</span><span class="operator">></span>addRow(<span class="string">"Label arm length"</span><span class="operator">,</span> m_sliceLabelArmFactor);
sliceSettingsLayout<span class="operator">-</span><span class="operator">></span>addRow(<span class="string">"Exploded"</span><span class="operator">,</span> m_sliceExploded);
sliceSettingsLayout<span class="operator">-</span><span class="operator">></span>addRow(<span class="string">"Explode distance"</span><span class="operator">,</span> m_sliceExplodedFactor);
<span class="type">QGroupBox</span> <span class="operator">*</span>sliceSettings <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QGroupBox</span>(<span class="string">"Selected slice"</span>);
sliceSettings<span class="operator">-</span><span class="operator">></span>setLayout(sliceSettingsLayout);
connect(m_sliceName<span class="operator">,</span> <span class="operator">&</span><span class="type">QLineEdit</span><span class="operator">::</span>textChanged<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>MainWidget<span class="operator">::</span>updateSliceSettings);
connect(m_sliceValue<span class="operator">,</span>
<span class="keyword">static_cast</span><span class="operator"><</span><span class="type">void</span> (<span class="type">QDoubleSpinBox</span><span class="operator">::</span><span class="operator">*</span>)(<span class="type">double</span>)<span class="operator">></span>(<span class="operator">&</span><span class="type">QDoubleSpinBox</span><span class="operator">::</span>valueChanged)<span class="operator">,</span>
<span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>MainWidget<span class="operator">::</span>updateSliceSettings);
connect(m_pen<span class="operator">,</span> <span class="operator">&</span><span class="type">QPushButton</span><span class="operator">::</span>clicked<span class="operator">,</span> m_penTool<span class="operator">,</span> <span class="operator">&</span>PenTool<span class="operator">::</span>show);
connect(m_penTool<span class="operator">,</span> <span class="operator">&</span>PenTool<span class="operator">::</span>changed<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>MainWidget<span class="operator">::</span>updateSliceSettings);
connect(m_brush<span class="operator">,</span> <span class="operator">&</span><span class="type">QPushButton</span><span class="operator">::</span>clicked<span class="operator">,</span> m_brushTool<span class="operator">,</span> <span class="operator">&</span>BrushTool<span class="operator">::</span>show);
connect(m_brushTool<span class="operator">,</span> <span class="operator">&</span>BrushTool<span class="operator">::</span>changed<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>MainWidget<span class="operator">::</span>updateSliceSettings);
connect(m_font<span class="operator">,</span> <span class="operator">&</span><span class="type">QPushButton</span><span class="operator">::</span>clicked<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>MainWidget<span class="operator">::</span>showFontDialog);
connect(m_labelBrush<span class="operator">,</span> <span class="operator">&</span><span class="type">QPushButton</span><span class="operator">::</span>clicked<span class="operator">,</span> m_labelBrushTool<span class="operator">,</span> <span class="operator">&</span>BrushTool<span class="operator">::</span>show);
connect(m_labelBrushTool<span class="operator">,</span> <span class="operator">&</span>BrushTool<span class="operator">::</span>changed<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>MainWidget<span class="operator">::</span>updateSliceSettings);
connect(m_sliceLabelVisible<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>MainWidget<span class="operator">::</span>updateSliceSettings);
connect(m_sliceLabelVisible<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>MainWidget<span class="operator">::</span>updateSliceSettings);
connect(m_sliceLabelArmFactor<span class="operator">,</span>
<span class="keyword">static_cast</span><span class="operator"><</span><span class="type">void</span> (<span class="type">QDoubleSpinBox</span><span class="operator">::</span><span class="operator">*</span>)(<span class="type">double</span>)<span class="operator">></span>(<span class="operator">&</span><span class="type">QDoubleSpinBox</span><span class="operator">::</span>valueChanged)<span class="operator">,</span>
<span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>MainWidget<span class="operator">::</span>updateSliceSettings);
connect(m_sliceExploded<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>MainWidget<span class="operator">::</span>updateSliceSettings);
connect(m_sliceExplodedFactor<span class="operator">,</span>
<span class="keyword">static_cast</span><span class="operator"><</span><span class="type">void</span> (<span class="type">QDoubleSpinBox</span><span class="operator">::</span><span class="operator">*</span>)(<span class="type">double</span>)<span class="operator">></span>(<span class="operator">&</span><span class="type">QDoubleSpinBox</span><span class="operator">::</span>valueChanged)<span class="operator">,</span>
<span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>MainWidget<span class="operator">::</span>updateSliceSettings);
connect(m_labelPosition<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>MainWidget<span class="operator">::</span>updateSliceSettings);
<span class="comment">// create chart view</span>
m_chartView <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qchartview.html">QChartView</a></span>(chart);
<span class="comment">// create main layout</span>
<span class="type">QVBoxLayout</span> <span class="operator">*</span>settingsLayout <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QVBoxLayout</span>();
settingsLayout<span class="operator">-</span><span class="operator">></span>addWidget(chartSettings);
settingsLayout<span class="operator">-</span><span class="operator">></span>addWidget(seriesSettings);
settingsLayout<span class="operator">-</span><span class="operator">></span>addWidget(sliceSettings);
settingsLayout<span class="operator">-</span><span class="operator">></span>addStretch();
<span class="type">QGridLayout</span> <span class="operator">*</span>baseLayout <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QGridLayout</span>();
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>);
baseLayout<span class="operator">-</span><span class="operator">></span>addWidget(m_chartView<span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">1</span>);
setLayout(baseLayout);
updateSerieSettings();
updateChartSettings();
}
<span class="type">void</span> MainWidget<span class="operator">::</span>updateChartSettings()
{
<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());
m_chartView<span class="operator">-</span><span class="operator">></span>chart()<span class="operator">-</span><span class="operator">></span>setTheme(theme);
m_chartView<span class="operator">-</span><span class="operator">></span>setRenderHint(<span class="type">QPainter</span><span class="operator">::</span>Antialiasing<span class="operator">,</span> m_aaCheckBox<span class="operator">-</span><span class="operator">></span>isChecked());
<span class="keyword">if</span> (m_animationsCheckBox<span class="operator">-</span><span class="operator">></span>checkState() <span class="operator">=</span><span class="operator">=</span> <span class="type">Qt</span><span class="operator">::</span>Checked)
m_chartView<span class="operator">-</span><span class="operator">></span>chart()<span class="operator">-</span><span class="operator">></span>setAnimationOptions(<span class="type"><a href="qchart.html">QChart</a></span><span class="operator">::</span>AllAnimations);
<span class="keyword">else</span>
m_chartView<span class="operator">-</span><span class="operator">></span>chart()<span class="operator">-</span><span class="operator">></span>setAnimationOptions(<span class="type"><a href="qchart.html">QChart</a></span><span class="operator">::</span>NoAnimation);
<span class="keyword">if</span> (m_legendCheckBox<span class="operator">-</span><span class="operator">></span>checkState() <span class="operator">=</span><span class="operator">=</span> <span class="type">Qt</span><span class="operator">::</span>Checked)
m_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();
<span class="keyword">else</span>
m_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="type">void</span> MainWidget<span class="operator">::</span>updateSerieSettings()
{
m_series<span class="operator">-</span><span class="operator">></span>setHorizontalPosition(m_hPosition<span class="operator">-</span><span class="operator">></span>value());
m_series<span class="operator">-</span><span class="operator">></span>setVerticalPosition(m_vPosition<span class="operator">-</span><span class="operator">></span>value());
m_series<span class="operator">-</span><span class="operator">></span>setPieSize(m_sizeFactor<span class="operator">-</span><span class="operator">></span>value());
m_holeSize<span class="operator">-</span><span class="operator">></span>setMaximum(m_sizeFactor<span class="operator">-</span><span class="operator">></span>value());
m_series<span class="operator">-</span><span class="operator">></span>setPieStartAngle(m_startAngle<span class="operator">-</span><span class="operator">></span>value());
m_series<span class="operator">-</span><span class="operator">></span>setPieEndAngle(m_endAngle<span class="operator">-</span><span class="operator">></span>value());
m_series<span class="operator">-</span><span class="operator">></span>setHoleSize(m_holeSize<span class="operator">-</span><span class="operator">></span>value());
}
<span class="type">void</span> MainWidget<span class="operator">::</span>updateSliceSettings()
{
<span class="keyword">if</span> (<span class="operator">!</span>m_slice)
<span class="keyword">return</span>;
m_slice<span class="operator">-</span><span class="operator">></span>setLabel(m_sliceName<span class="operator">-</span><span class="operator">></span>text());
m_slice<span class="operator">-</span><span class="operator">></span>setValue(m_sliceValue<span class="operator">-</span><span class="operator">></span>value());
m_slice<span class="operator">-</span><span class="operator">></span>setPen(m_penTool<span class="operator">-</span><span class="operator">></span>pen());
m_slice<span class="operator">-</span><span class="operator">></span>setBrush(m_brushTool<span class="operator">-</span><span class="operator">></span>brush());
m_slice<span class="operator">-</span><span class="operator">></span>setLabelBrush(m_labelBrushTool<span class="operator">-</span><span class="operator">></span>brush());
m_slice<span class="operator">-</span><span class="operator">></span>setLabelVisible(m_sliceLabelVisible<span class="operator">-</span><span class="operator">></span>isChecked());
m_slice<span class="operator">-</span><span class="operator">></span>setLabelArmLengthFactor(m_sliceLabelArmFactor<span class="operator">-</span><span class="operator">></span>value());
<span class="comment">// We assume that label position index is in sync with the enum</span>
m_slice<span class="operator">-</span><span class="operator">></span>setLabelPosition((<span class="type"><a href="qpieslice.html">QPieSlice</a></span><span class="operator">::</span>LabelPosition)m_labelPosition<span class="operator">-</span><span class="operator">></span>currentIndex());
m_slice<span class="operator">-</span><span class="operator">></span>setExploded(m_sliceExploded<span class="operator">-</span><span class="operator">></span>isChecked());
m_slice<span class="operator">-</span><span class="operator">></span>setExplodeDistanceFactor(m_sliceExplodedFactor<span class="operator">-</span><span class="operator">></span>value());
}
<span class="type">void</span> MainWidget<span class="operator">::</span>handleSliceClicked(<span class="type"><a href="qpieslice.html">QPieSlice</a></span> <span class="operator">*</span>slice)
{
m_slice <span class="operator">=</span> <span class="keyword">static_cast</span><span class="operator"><</span>CustomSlice <span class="operator">*</span><span class="operator">></span>(slice);
<span class="comment">// name</span>
m_sliceName<span class="operator">-</span><span class="operator">></span>blockSignals(<span class="keyword">true</span>);
m_sliceName<span class="operator">-</span><span class="operator">></span>setText(slice<span class="operator">-</span><span class="operator">></span>label());
m_sliceName<span class="operator">-</span><span class="operator">></span>blockSignals(<span class="keyword">false</span>);
<span class="comment">// value</span>
m_sliceValue<span class="operator">-</span><span class="operator">></span>blockSignals(<span class="keyword">true</span>);
m_sliceValue<span class="operator">-</span><span class="operator">></span>setValue(slice<span class="operator">-</span><span class="operator">></span>value());
m_sliceValue<span class="operator">-</span><span class="operator">></span>blockSignals(<span class="keyword">false</span>);
<span class="comment">// pen</span>
m_pen<span class="operator">-</span><span class="operator">></span>setText(PenTool<span class="operator">::</span>name(m_slice<span class="operator">-</span><span class="operator">></span>pen()));
m_penTool<span class="operator">-</span><span class="operator">></span>setPen(m_slice<span class="operator">-</span><span class="operator">></span>pen());
<span class="comment">// brush</span>
m_brush<span class="operator">-</span><span class="operator">></span>setText(m_slice<span class="operator">-</span><span class="operator">></span>originalBrush()<span class="operator">.</span>color()<span class="operator">.</span>name());
m_brushTool<span class="operator">-</span><span class="operator">></span>setBrush(m_slice<span class="operator">-</span><span class="operator">></span>originalBrush());
<span class="comment">// label</span>
m_labelBrush<span class="operator">-</span><span class="operator">></span>setText(BrushTool<span class="operator">::</span>name(m_slice<span class="operator">-</span><span class="operator">></span>labelBrush()));
m_labelBrushTool<span class="operator">-</span><span class="operator">></span>setBrush(m_slice<span class="operator">-</span><span class="operator">></span>labelBrush());
m_font<span class="operator">-</span><span class="operator">></span>setText(slice<span class="operator">-</span><span class="operator">></span>labelFont()<span class="operator">.</span>toString());
m_sliceLabelVisible<span class="operator">-</span><span class="operator">></span>blockSignals(<span class="keyword">true</span>);
m_sliceLabelVisible<span class="operator">-</span><span class="operator">></span>setChecked(slice<span class="operator">-</span><span class="operator">></span>isLabelVisible());
m_sliceLabelVisible<span class="operator">-</span><span class="operator">></span>blockSignals(<span class="keyword">false</span>);
m_sliceLabelArmFactor<span class="operator">-</span><span class="operator">></span>blockSignals(<span class="keyword">true</span>);
m_sliceLabelArmFactor<span class="operator">-</span><span class="operator">></span>setValue(slice<span class="operator">-</span><span class="operator">></span>labelArmLengthFactor());
m_sliceLabelArmFactor<span class="operator">-</span><span class="operator">></span>blockSignals(<span class="keyword">false</span>);
m_labelPosition<span class="operator">-</span><span class="operator">></span>blockSignals(<span class="keyword">true</span>);
<span class="comment">// We assume that label position index is in sync with the enum</span>
m_labelPosition<span class="operator">-</span><span class="operator">></span>setCurrentIndex(slice<span class="operator">-</span><span class="operator">></span>labelPosition());
m_labelPosition<span class="operator">-</span><span class="operator">></span>blockSignals(<span class="keyword">false</span>);
<span class="comment">// exploded</span>
m_sliceExploded<span class="operator">-</span><span class="operator">></span>blockSignals(<span class="keyword">true</span>);
m_sliceExploded<span class="operator">-</span><span class="operator">></span>setChecked(slice<span class="operator">-</span><span class="operator">></span>isExploded());
m_sliceExploded<span class="operator">-</span><span class="operator">></span>blockSignals(<span class="keyword">false</span>);
m_sliceExplodedFactor<span class="operator">-</span><span class="operator">></span>blockSignals(<span class="keyword">true</span>);
m_sliceExplodedFactor<span class="operator">-</span><span class="operator">></span>setValue(slice<span class="operator">-</span><span class="operator">></span>explodeDistanceFactor());
m_sliceExplodedFactor<span class="operator">-</span><span class="operator">></span>blockSignals(<span class="keyword">false</span>);
}
<span class="type">void</span> MainWidget<span class="operator">::</span>showFontDialog()
{
<span class="keyword">if</span> (<span class="operator">!</span>m_slice)
<span class="keyword">return</span>;
<span class="type">QFontDialog</span> dialog(m_slice<span class="operator">-</span><span class="operator">></span>labelFont());
dialog<span class="operator">.</span>show();
dialog<span class="operator">.</span>exec();
m_slice<span class="operator">-</span><span class="operator">></span>setLabelFont(dialog<span class="operator">.</span>currentFont());
m_font<span class="operator">-</span><span class="operator">></span>setText(dialog<span class="operator">.</span>currentFont()<span class="operator">.</span>toString());
}
<span class="type">void</span> MainWidget<span class="operator">::</span>appendSlice()
{
<span class="operator">*</span>m_series <span class="operator"><</span><span class="operator"><</span> <span class="keyword">new</span> CustomSlice(<span class="string">"Slice "</span> <span class="operator">+</span> <span class="type">QString</span><span class="operator">::</span>number(m_series<span class="operator">-</span><span class="operator">></span>count() <span class="operator">+</span> <span class="number">1</span>)<span class="operator">,</span> <span class="number">10.0</span>);
}
<span class="type">void</span> MainWidget<span class="operator">::</span>insertSlice()
{
<span class="keyword">if</span> (<span class="operator">!</span>m_slice)
<span class="keyword">return</span>;
<span class="type">int</span> i <span class="operator">=</span> m_series<span class="operator">-</span><span class="operator">></span>slices()<span class="operator">.</span>indexOf(m_slice);
m_series<span class="operator">-</span><span class="operator">></span>insert(i<span class="operator">,</span> <span class="keyword">new</span> CustomSlice(<span class="string">"Slice "</span> <span class="operator">+</span> <span class="type">QString</span><span class="operator">::</span>number(m_series<span class="operator">-</span><span class="operator">></span>count() <span class="operator">+</span> <span class="number">1</span>)<span class="operator">,</span> <span class="number">10.0</span>));
}
<span class="type">void</span> MainWidget<span class="operator">::</span>removeSlice()
{
<span class="keyword">if</span> (<span class="operator">!</span>m_slice)
<span class="keyword">return</span>;
m_sliceName<span class="operator">-</span><span class="operator">></span>setText(<span class="string">"<click a slice>"</span>);
m_series<span class="operator">-</span><span class="operator">></span>remove(m_slice);
m_slice <span class="operator">=</span> <span class="number">0</span>;
}
<span class="preprocessor">#include "moc_mainwidget.cpp"</span>
</pre>
</div>
<!-- @@@piechartcustomization/mainwidget.cpp -->
</div>
</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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distrib
>
Mageia
>
6
>
x86_64
>
media
>
core-updates
>
by-pkgid
>
19952c5e751bf7e3108c3c59625b0f35
>
files
>
385
