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/****************************************************************************
**
** Copyright (C) 2014 Digia Plc
** All rights reserved.
** For any questions to Digia, please use contact form at http://qt.io
**
** This file is part of the Qt Charts module.
**
** Licensees holding valid commercial license for Qt may use this file in
** accordance with the Qt 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.io
**
****************************************************************************/
// 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 <QtCharts/QChartGlobal>
#include <QtCharts/QChart>
#include <QtGui/QColor>
#include <QtGui/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
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