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+/****************************************************************************
+**
+** Copyright (C) 2014 Digia Plc
+** All rights reserved.
+** For any questions to Digia, please use contact form at http://qt.digia.com
+**
+** This file is part of the Qt Enterprise Charts Add-on.
+**
+** $QT_BEGIN_LICENSE$
+** Licensees holding valid Qt Enterprise licenses may use this file in
+** accordance with the Qt Enterprise License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.
+**
+** If you have questions regarding the use of this file, please use
+** contact form at http://qt.digia.com
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+// W A R N I N G
+// -------------
+//
+// This file is not part of the Qt Enterprise Chart API. It exists purely as an
+// implementation detail. This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+
+#ifndef CHARTTHEMEMANAGER_H
+#define CHARTTHEMEMANAGER_H
+
+#include "qchartglobal.h"
+#include "qchart.h"
+#include <QColor>
+#include <QGradientStops>
+
+QT_CHARTS_BEGIN_NAMESPACE
+class ChartTheme;
+
+class ChartThemeManager: public QObject
+{
+ Q_OBJECT
+public:
+ enum BackgroundShadesMode {
+ BackgroundShadesNone = 0,
+ BackgroundShadesVertical,
+ BackgroundShadesHorizontal,
+ BackgroundShadesBoth
+ };
+
+public:
+ explicit ChartThemeManager(QChart* chart);
+ void setTheme(QChart::ChartTheme theme);
+ ChartTheme* theme() const { return m_theme.data(); }
+ void decorateChart(QChart *chart, ChartTheme* theme) const;
+ void decorateLegend(QLegend *legend, ChartTheme* theme) const;
+ void updateSeries(QAbstractSeries *series);
+
+public:
+ static QList<QGradient> generateSeriesGradients(const QList<QColor>& colors);
+ static QColor colorAt(const QColor &start, const QColor &end, qreal pos);
+ static QColor colorAt(const QGradient &gradient, qreal pos);
+
+private:
+ int createIndexKey(QList<int> keys) const;
+ int seriesCount(QAbstractSeries::SeriesType type) const;
+
+public Q_SLOTS:
+ void handleSeriesAdded(QAbstractSeries *series);
+ void handleSeriesRemoved(QAbstractSeries *series);
+ void handleAxisAdded(QAbstractAxis *axis);
+ void handleAxisRemoved(QAbstractAxis *axis);
+
+protected:
+ QScopedPointer<ChartTheme> m_theme;
+ QMap<QAbstractSeries *,int> m_seriesMap;
+ QList<QAbstractAxis *> m_axisList;
+ QChart* m_chart;
+};
+
+QT_CHARTS_END_NAMESPACE
+
+#endif // CHARTTHEME_H