| 1 | // Copyright (C) 2016 The Qt Company Ltd. |
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| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only |
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| 3 | |
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| 4 | // W A R N I N G |
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| 5 | // ------------- |
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| 6 | // |
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| 7 | // This file is not part of the Qt Chart API. It exists purely as an |
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| 8 | // implementation detail. This header file may change from version to |
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| 9 | // version without notice, or even be removed. |
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| 10 | // |
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| 11 | // We mean it. |
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| 12 | |
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| 13 | #ifndef CHARTTHEMEMANAGER_H |
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| 14 | #define CHARTTHEMEMANAGER_H |
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| 15 | |
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| 16 | #include <QtCharts/QChartGlobal> |
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| 17 | #include <QtCharts/QChart> |
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| 18 | #include <QtGui/QColor> |
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| 19 | #include <QtGui/QGradientStops> |
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| 20 | #include <QtCharts/private/qchartglobal_p.h> |
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| 21 | #include <QtCore/qmap.h> |
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| 22 | |
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| 23 | QT_BEGIN_NAMESPACE |
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| 24 | class ChartTheme; |
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| 25 | |
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| 26 | class Q_CHARTS_EXPORT ChartThemeManager: public QObject |
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| 27 | { |
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| 28 | Q_OBJECT |
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| 29 | public: |
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| 30 | enum BackgroundShadesMode { |
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| 31 | BackgroundShadesNone = 0, |
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| 32 | BackgroundShadesVertical, |
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| 33 | BackgroundShadesHorizontal, |
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| 34 | BackgroundShadesBoth |
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| 35 | }; |
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| 36 | |
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| 37 | public: |
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| 38 | explicit ChartThemeManager(QChart* chart); |
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| 39 | void setTheme(QChart::ChartTheme theme); |
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| 40 | ChartTheme* theme() const { return m_theme.data(); } |
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| 41 | void decorateChart(QChart *chart, ChartTheme* theme) const; |
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| 42 | void decorateLegend(QLegend *legend, ChartTheme* theme) const; |
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| 43 | void updateSeries(QAbstractSeries *series); |
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| 44 | QMap<QAbstractSeries *, int> seriesMap() const { return m_seriesMap; } |
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| 45 | |
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| 46 | public: |
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| 47 | static QList<QGradient> generateSeriesGradients(const QList<QColor>& colors); |
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| 48 | static QColor colorAt(const QColor &start, const QColor &end, qreal pos); |
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| 49 | static QColor colorAt(const QGradient &gradient, qreal pos); |
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| 50 | |
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| 51 | private: |
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| 52 | int createIndexKey(const QList<int> &keys) const; |
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| 53 | int seriesCount(QAbstractSeries::SeriesType type) const; |
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| 54 | |
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| 55 | public Q_SLOTS: |
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| 56 | void handleSeriesAdded(QAbstractSeries *series); |
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| 57 | void handleSeriesRemoved(QAbstractSeries *series); |
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| 58 | void handleAxisAdded(QAbstractAxis *axis); |
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| 59 | void handleAxisRemoved(QAbstractAxis *axis); |
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| 60 | |
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| 61 | protected: |
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| 62 | QScopedPointer<ChartTheme> m_theme; |
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| 63 | QMap<QAbstractSeries *,int> m_seriesMap; |
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| 64 | QList<QAbstractAxis *> m_axisList; |
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| 65 | QChart* m_chart; |
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| 66 | }; |
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| 67 | |
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| 68 | QT_END_NAMESPACE |
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| 69 | |
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| 70 | #endif // CHARTTHEME_H |
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| 71 | |
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