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/****************************************************************************
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**
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** Copyright (C) 2016 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of the Qt Charts module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:GPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3 or (at your option) any later version
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** approved by the KDE Free Qt Foundation. The licenses are as published by
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** the Free Software Foundation and appearing in the file LICENSE.GPL3
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** included in the packaging of this file. Please review the following
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** information to ensure the GNU General Public License requirements will
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** be met: https://www.gnu.org/licenses/gpl-3.0.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef ENGINE_H
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#define ENGINE_H
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#include <QtCore/QObject>
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#include <QtCharts/QAbstractSeries>
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#include <QtCore/QModelIndex>
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class QStandardItemModel;
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class QItemSelectionModel;
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QT_CHARTS_BEGIN_NAMESPACE
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class QChart;
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class QXYSeries;
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class QAbstractBarSeries;
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class QPieSeries;
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class QAreaSeries;
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QT_CHARTS_END_NAMESPACE
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QT_CHARTS_USE_NAMESPACE
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class Engine : public QObject
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{
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Q_OBJECT
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public:
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explicit Engine(QObject *parent = 0);
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~Engine();
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int modelCount() { return m_count; }
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QStandardItemModel *model() const { return m_model; }
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QItemSelectionModel *selectionModel() const { return m_selection; }
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QChart* chart() const { return m_chart; }
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void clearModels();
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QList<QAbstractSeries*> addSeries(QAbstractSeries::SeriesType type);
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void removeSeries(QAbstractSeries* series);
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bool save(const QString &filename) const;
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bool load(const QString &filename);
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signals:
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void selected();
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private:
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void createModels();
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void setupXYSeries(QXYSeries *xyseries, const QList<int>& columns, int column, int minRow, int maxRow);
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void setupBarSeries(QAbstractBarSeries *series, const QList<int>& columns, int minRow, int maxRow);
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void setupPieSeries(QPieSeries *pie, const QList<int>& columns, int minRow, int maxRow);
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void setupAreaSeries(QAreaSeries *series, const QList<int>& columns, int minRow, int maxRow);
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private:
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int m_count;
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QChart *m_chart;
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QStandardItemModel *m_model;
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QItemSelectionModel *m_selection;
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QMap<QAbstractSeries*, QList<QModelIndex> > m_seriesModelIndex;
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};
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#endif /* ENGINE_H */
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