1 | /**************************************************************************** |
2 | ** |
3 | ** Copyright (C) 2016 The Qt Company Ltd. |
4 | ** Contact: https://www.qt.io/licensing/ |
5 | ** |
6 | ** This file is part of the Qt Charts module of the Qt Toolkit. |
7 | ** |
8 | ** $QT_BEGIN_LICENSE:GPL$ |
9 | ** Commercial License Usage |
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17 | ** GNU General Public License Usage |
18 | ** Alternatively, this file may be used under the terms of the GNU |
19 | ** General Public License version 3 or (at your option) any later version |
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26 | ** $QT_END_LICENSE$ |
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28 | ****************************************************************************/ |
29 | |
30 | // W A R N I N G |
31 | // ------------- |
32 | // |
33 | // This file is not part of the Qt Chart API. It exists purely as an |
34 | // implementation detail. This header file may change from version to |
35 | // version without notice, or even be removed. |
36 | // |
37 | // We mean it. |
38 | |
39 | #ifndef CHARTTHEMEMANAGER_H |
40 | #define CHARTTHEMEMANAGER_H |
41 | |
42 | #include <QtCharts/QChartGlobal> |
43 | #include <QtCharts/QChart> |
44 | #include <QtGui/QColor> |
45 | #include <QtGui/QGradientStops> |
46 | #include <QtCharts/private/qchartglobal_p.h> |
47 | |
48 | QT_CHARTS_BEGIN_NAMESPACE |
49 | class ChartTheme; |
50 | |
51 | class Q_CHARTS_PRIVATE_EXPORT ChartThemeManager: public QObject |
52 | { |
53 | Q_OBJECT |
54 | public: |
55 | enum BackgroundShadesMode { |
56 | BackgroundShadesNone = 0, |
57 | BackgroundShadesVertical, |
58 | BackgroundShadesHorizontal, |
59 | BackgroundShadesBoth |
60 | }; |
61 | |
62 | public: |
63 | explicit ChartThemeManager(QChart* chart); |
64 | void setTheme(QChart::ChartTheme theme); |
65 | ChartTheme* theme() const { return m_theme.data(); } |
66 | void decorateChart(QChart *chart, ChartTheme* theme) const; |
67 | void decorateLegend(QLegend *legend, ChartTheme* theme) const; |
68 | void updateSeries(QAbstractSeries *series); |
69 | QMap<QAbstractSeries *, int> seriesMap() const { return m_seriesMap; } |
70 | |
71 | public: |
72 | static QList<QGradient> generateSeriesGradients(const QList<QColor>& colors); |
73 | static QColor colorAt(const QColor &start, const QColor &end, qreal pos); |
74 | static QColor colorAt(const QGradient &gradient, qreal pos); |
75 | |
76 | private: |
77 | int createIndexKey(QList<int> keys) const; |
78 | int seriesCount(QAbstractSeries::SeriesType type) const; |
79 | |
80 | public Q_SLOTS: |
81 | void handleSeriesAdded(QAbstractSeries *series); |
82 | void handleSeriesRemoved(QAbstractSeries *series); |
83 | void handleAxisAdded(QAbstractAxis *axis); |
84 | void handleAxisRemoved(QAbstractAxis *axis); |
85 | |
86 | protected: |
87 | QScopedPointer<ChartTheme> m_theme; |
88 | QMap<QAbstractSeries *,int> m_seriesMap; |
89 | QList<QAbstractAxis *> m_axisList; |
90 | QChart* m_chart; |
91 | }; |
92 | |
93 | QT_CHARTS_END_NAMESPACE |
94 | |
95 | #endif // CHARTTHEME_H |
96 | |