1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
|
/****************************************************************************
**
** 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 */
|
