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/****************************************************************************
**
** 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.
**
** $QT_END_LICENSE$
**
****************************************************************************/
// W A R N I N G
// -------------
//
// This file is not part of the Qt 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>
#include <QtCharts/private/qchartglobal_p.h>
QT_CHARTS_BEGIN_NAMESPACE
class ChartTheme;
class Q_CHARTS_PRIVATE_EXPORT 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);
QMap<QAbstractSeries *, int> seriesMap() const { return m_seriesMap; }
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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