| /**************************************************************************** |
| ** |
| ** 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. |
| ** |
| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| |
| #ifndef ENGINE_H |
| #define ENGINE_H |
| |
| #include <QtCore/QObject> |
| #include <QtCharts/QAbstractSeries> |
| #include <QtCore/QModelIndex> |
| |
| class QStandardItemModel; |
| class QItemSelectionModel; |
| |
| |
| QT_CHARTS_BEGIN_NAMESPACE |
| class QChart; |
| class QXYSeries; |
| class QAbstractBarSeries; |
| class QPieSeries; |
| class QAreaSeries; |
| QT_CHARTS_END_NAMESPACE |
| |
| QT_CHARTS_USE_NAMESPACE |
| |
| class Engine : public QObject |
| { |
| Q_OBJECT |
| public: |
| explicit Engine(QObject *parent = 0); |
| ~Engine(); |
| |
| int modelCount() { return m_count; } |
| QStandardItemModel *model() const { return m_model; } |
| QItemSelectionModel *selectionModel() const { return m_selection; } |
| QChart* chart() const { return m_chart; } |
| void clearModels(); |
| QList<QAbstractSeries*> addSeries(QAbstractSeries::SeriesType type); |
| void removeSeries(QAbstractSeries* series); |
| bool save(const QString &filename) const; |
| bool load(const QString &filename); |
| signals: |
| void selected(); |
| |
| private: |
| void createModels(); |
| void setupXYSeries(QXYSeries *xyseries, const QList<int>& columns, int column, int minRow, int maxRow); |
| void setupBarSeries(QAbstractBarSeries *series, const QList<int>& columns, int minRow, int maxRow); |
| void setupPieSeries(QPieSeries *pie, const QList<int>& columns, int minRow, int maxRow); |
| void setupAreaSeries(QAreaSeries *series, const QList<int>& columns, int minRow, int maxRow); |
| |
| private: |
| int m_count; |
| QChart *m_chart; |
| QStandardItemModel *m_model; |
| QItemSelectionModel *m_selection; |
| QMap<QAbstractSeries*, QList<QModelIndex> > m_seriesModelIndex; |
| }; |
| |
| #endif /* ENGINE_H */ |