mainwidget.h Example File | Qt Charts 5.12.12

- Qt 5.12
- Qt Charts
- Pie Chart Customization Example
- mainwidget.h Example File
- Qt Charts | Commercial or GPLv3

# mainwidget.h Example File

piechartcustomization/mainwidget.h

     /****************************************************************************
     **
     ** 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.
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     #ifndef MAINWIDGET_H
     #define MAINWIDGET_H

     #include <QtWidgets/QWidget>
     #include <QtCharts/QChartGlobal>

     class QLineEdit;
     class QPushButton;
     class QCheckBox;
     class QComboBox;
     class QDoubleSpinBox;

     class PenTool;
     class BrushTool;
     class CustomSlice;

     QT_CHARTS_BEGIN_NAMESPACE
     class QChartView;
     class QPieSeries;
     class QPieSlice;
     QT_CHARTS_END_NAMESPACE

     QT_CHARTS_USE_NAMESPACE

     class MainWidget : public QWidget
     {
         Q_OBJECT

     public:
         explicit MainWidget(QWidget *parent = 0);

     public Q_SLOTS:
         void updateChartSettings();
         void updateSerieSettings();
         void updateSliceSettings();
         void handleSliceClicked(QPieSlice *slice);
         void showFontDialog();
         void appendSlice();
         void insertSlice();
         void removeSlice();

     private:
         QComboBox *m_themeComboBox;
         QCheckBox *m_aaCheckBox;
         QCheckBox *m_animationsCheckBox;
         QCheckBox *m_legendCheckBox;

         QChartView *m_chartView;
         QPieSeries *m_series;
         CustomSlice *m_slice;

         QDoubleSpinBox *m_hPosition;
         QDoubleSpinBox *m_vPosition;
         QDoubleSpinBox *m_sizeFactor;
         QDoubleSpinBox *m_startAngle;
         QDoubleSpinBox *m_endAngle;
         QDoubleSpinBox *m_holeSize;

         QLineEdit *m_sliceName;
         QDoubleSpinBox *m_sliceValue;
         QCheckBox *m_sliceLabelVisible;
         QDoubleSpinBox *m_sliceLabelArmFactor;
         QCheckBox *m_sliceExploded;
         QDoubleSpinBox *m_sliceExplodedFactor;
         QPushButton *m_brush;
         BrushTool *m_brushTool;
         QPushButton *m_pen;
         PenTool *m_penTool;
         QPushButton *m_font;
         QPushButton *m_labelBrush;
         QComboBox *m_labelPosition;
         BrushTool *m_labelBrushTool;
     };

     #endif // MAINWIDGET_H