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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 PIECHARTITEM_H
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#define PIECHARTITEM_H
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#include <QtCharts/QPieSeries>
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#include <private/chartitem_p.h>
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#include <private/piesliceitem_p.h>
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#include <QtCore/QPointer>
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QT_BEGIN_NAMESPACE
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class QGraphicsItem;
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QT_END_NAMESPACE
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QT_CHARTS_BEGIN_NAMESPACE
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class QPieSlice;
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class ChartPresenter;
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class PieAnimation;
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class PieChartItem : public ChartItem
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{
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Q_OBJECT
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public:
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explicit PieChartItem(QPieSeries *series, QGraphicsItem* item = 0);
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~PieChartItem();
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// from QGraphicsItem
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QRectF boundingRect() const { return m_rect; }
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void paint(QPainter *, const QStyleOptionGraphicsItem *, QWidget *) {}
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public Q_SLOTS:
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// from Chart
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virtual void handleDomainUpdated();
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void updateLayout();
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void handleSlicesAdded(QList<QPieSlice *> slices);
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void handleSlicesRemoved(QList<QPieSlice *> slices);
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void handleSliceChanged();
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void handleSeriesVisibleChanged();
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void handleOpacityChanged();
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void setAnimation(PieAnimation *animation);
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ChartAnimation *animation() const;
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private:
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PieSliceData updateSliceGeometry(QPieSlice *slice);
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private:
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QHash<QPieSlice *, PieSliceItem *> m_sliceItems;
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QPointer<QPieSeries> m_series;
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QRectF m_rect;
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QPointF m_pieCenter;
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qreal m_pieRadius;
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qreal m_holeSize;
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PieAnimation *m_animation;
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};
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QT_CHARTS_END_NAMESPACE
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#endif // PIECHARTITEM_H
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