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/****************************************************************************
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**
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** Copyright (C) 2016 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of the Qt Charts module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:GPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3 or (at your option) any later version
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** approved by the KDE Free Qt Foundation. The licenses are as published by
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** the Free Software Foundation and appearing in the file LICENSE.GPL3
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** included in the packaging of this file. Please review the following
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** information to ensure the GNU General Public License requirements will
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** be met: https://www.gnu.org/licenses/gpl-3.0.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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// W A R N I N G
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// -------------
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//
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// This file is not part of the Qt Chart API. It exists purely as an
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// implementation detail. This header file may change from version to
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// version without notice, or even be removed.
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//
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// We mean it.
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#ifndef CHARTTHEMEMANAGER_H
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#define CHARTTHEMEMANAGER_H
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#include <QtCharts/QChartGlobal>
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#include <QtCharts/QChart>
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#include <QtGui/QColor>
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#include <QtGui/QGradientStops>
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QT_CHARTS_BEGIN_NAMESPACE
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class ChartTheme;
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class ChartThemeManager: public QObject
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{
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Q_OBJECT
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public:
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enum BackgroundShadesMode {
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BackgroundShadesNone = 0,
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BackgroundShadesVertical,
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BackgroundShadesHorizontal,
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BackgroundShadesBoth
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};
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public:
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explicit ChartThemeManager(QChart* chart);
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void setTheme(QChart::ChartTheme theme);
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ChartTheme* theme() const { return m_theme.data(); }
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void decorateChart(QChart *chart, ChartTheme* theme) const;
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void decorateLegend(QLegend *legend, ChartTheme* theme) const;
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void updateSeries(QAbstractSeries *series);
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public:
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static QList<QGradient> generateSeriesGradients(const QList<QColor>& colors);
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static QColor colorAt(const QColor &start, const QColor &end, qreal pos);
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static QColor colorAt(const QGradient &gradient, qreal pos);
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private:
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int createIndexKey(QList<int> keys) const;
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int seriesCount(QAbstractSeries::SeriesType type) const;
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public Q_SLOTS:
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void handleSeriesAdded(QAbstractSeries *series);
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void handleSeriesRemoved(QAbstractSeries *series);
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void handleAxisAdded(QAbstractAxis *axis);
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void handleAxisRemoved(QAbstractAxis *axis);
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protected:
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QScopedPointer<ChartTheme> m_theme;
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QMap<QAbstractSeries *,int> m_seriesMap;
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QList<QAbstractAxis *> m_axisList;
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QChart* m_chart;
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};
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QT_CHARTS_END_NAMESPACE
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#endif // CHARTTHEME_H
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