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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 QLEGEND_P_H
#define QLEGEND_P_H
#include <QtCharts/QLegend>
#include <QtCharts/private/qchartglobal_p.h>
QT_CHARTS_BEGIN_NAMESPACE
class QChart;
class ChartPresenter;
class QAbstractSeries;
class LegendLayout;
class QLegendMarker;
class Q_CHARTS_PRIVATE_EXPORT 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);
qreal maxMarkerWidth() const;
static QObject *relatedObject(const QLegendMarker *l);
public Q_SLOTS:
void handleSeriesAdded(QAbstractSeries *series);
void handleSeriesRemoved(QAbstractSeries *series);
void handleSeriesVisibleChanged();
void handleCountChanged();
private:
// Internal helpers
void insertMarkerHelper(QLegendMarker *marker);
void addMarkers(QList<QLegendMarker *> markers);
void removeMarkerHelper(QLegendMarker *marker);
void removeMarkers(QList<QLegendMarker *> markers);
void decorateMarker(QLegendMarker *marker);
void decorateMarkers(QList<QLegendMarker *> markers);
void updateToolTips();
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;
bool m_showToolTips;
QLegend::MarkerShape m_markerShape;
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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