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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 QLEGEND_P_H
#define QLEGEND_P_H
#include <QtCharts/QLegend>
QT_CHARTS_BEGIN_NAMESPACE
class QChart;
class ChartPresenter;
class QAbstractSeries;
class LegendLayout;
class QLegendMarker;
class QLegendPrivate : public QObject
{
Q_OBJECT
public:
QLegendPrivate(ChartPresenter *presenter, QChart *chart, QLegend *q);
~QLegendPrivate();
void setOffset(const QPointF &offset);
QPointF offset() const;
int roundness(qreal size);
QGraphicsItemGroup* items() { return m_items; }
QList<QLegendMarker*> markers(QAbstractSeries *series = 0);
public Q_SLOTS:
void handleSeriesAdded(QAbstractSeries *series);
void handleSeriesRemoved(QAbstractSeries *series);
void handleSeriesVisibleChanged();
void handleCountChanged();
private:
// Internal helpers
void addMarkers(QList<QLegendMarker *> markers);
void removeMarkers(QList<QLegendMarker *> markers);
void decorateMarkers(QList<QLegendMarker *> markers);
private:
QLegend *q_ptr;
ChartPresenter *m_presenter;
LegendLayout *m_layout;
QChart *m_chart;
QGraphicsItemGroup *m_items;
Qt::Alignment m_alignment;
QBrush m_brush;
QPen m_pen;
QFont m_font;
QBrush m_labelBrush;
qreal m_diameter;
bool m_attachedToChart;
bool m_backgroundVisible;
bool m_reverseMarkers;
QList<QLegendMarker *> m_markers;
QList<QAbstractSeries *> m_series;
QHash<QGraphicsItem *, QLegendMarker *> m_markerHash;
friend class QLegend;
friend class LegendMarkerItem;
friend class LegendLayout;
friend class QLegendMarkerPrivate;
friend class LegendScroller;
};
QT_CHARTS_END_NAMESPACE
#endif
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