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themewidget.h Example File

chartthemes/themewidget.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
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** 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
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****************************************************************************/

#ifndef THEMEWIDGET_H
#define THEMEWIDGET_H

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

class QComboBox;
class QCheckBox;
class Ui_ThemeWidgetForm;

QT_CHARTS_BEGIN_NAMESPACE
class QChartView;
class QChart;
QT_CHARTS_END_NAMESPACE

typedef QPair<QPointF, QString> Data;
typedef QList<Data> DataList;
typedef QList<DataList> DataTable;

QT_CHARTS_USE_NAMESPACE

class ThemeWidget: public QWidget
{
    Q_OBJECT
public:
    explicit ThemeWidget(QWidget *parent = 0);
    ~ThemeWidget();

private Q_SLOTS:
    void updateUI();

private:
    DataTable generateRandomData(int listCount, int valueMax, int valueCount) const;
    void populateThemeBox();
    void populateAnimationBox();
    void populateLegendBox();
    void connectSignals();
    QChart *createAreaChart() const;
    QChart *createBarChart(int valueCount) const;
    QChart *createPieChart() const;
    QChart *createLineChart() const;
    QChart *createSplineChart() const;
    QChart *createScatterChart() const;

private:
    int m_listCount;
    int m_valueMax;
    int m_valueCount;
    QList<QChartView *> m_charts;
    DataTable m_dataTable;

    Ui_ThemeWidgetForm *m_ui;
};

#endif /* THEMEWIDGET_H */
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