|
|
/****************************************************************************
|
|
|
**
|
|
|
** Copyright (C) 2012 Digia Plc
|
|
|
** All rights reserved.
|
|
|
** For any questions to Digia, please use contact form at http://qt.digia.com
|
|
|
**
|
|
|
** This file is part of the Qt Commercial Charts Add-on.
|
|
|
**
|
|
|
** $QT_BEGIN_LICENSE$
|
|
|
** Licensees holding valid Qt Commercial licenses may use this file in
|
|
|
** accordance with the Qt Commercial 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.digia.com
|
|
|
** $QT_END_LICENSE$
|
|
|
**
|
|
|
****************************************************************************/
|
|
|
|
|
|
// W A R N I N G
|
|
|
// -------------
|
|
|
//
|
|
|
// This file is not part of the QtCommercial 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 PIECHARTITEM_H
|
|
|
#define PIECHARTITEM_H
|
|
|
|
|
|
#include "qpieseries.h"
|
|
|
#include "chartitem_p.h"
|
|
|
#include "piesliceitem_p.h"
|
|
|
|
|
|
class QGraphicsItem;
|
|
|
QTCOMMERCIALCHART_BEGIN_NAMESPACE
|
|
|
class QPieSlice;
|
|
|
class ChartPresenter;
|
|
|
class PieAnimation;
|
|
|
|
|
|
class PieChartItem : public ChartItem
|
|
|
{
|
|
|
Q_OBJECT
|
|
|
|
|
|
public:
|
|
|
explicit PieChartItem(QPieSeries *series, ChartPresenter *presenter);
|
|
|
~PieChartItem();
|
|
|
|
|
|
// from QGraphicsItem
|
|
|
QRectF boundingRect() const { return m_rect; }
|
|
|
void paint(QPainter *, const QStyleOptionGraphicsItem *, QWidget *) {}
|
|
|
|
|
|
public Q_SLOTS:
|
|
|
// from Chart
|
|
|
virtual void handleGeometryChanged(const QRectF &rect);
|
|
|
virtual void handleDomainChanged(qreal minX, qreal maxX, qreal minY, qreal maxY);
|
|
|
virtual void handleDomainUpdated();
|
|
|
virtual void rangeXChanged(qreal min, qreal max, int tickXCount);
|
|
|
virtual void rangeYChanged(qreal min, qreal max, int tickYCount);
|
|
|
|
|
|
void updateLayout();
|
|
|
void handleSlicesAdded(QList<QPieSlice*> slices);
|
|
|
void handleSlicesRemoved(QList<QPieSlice*> slices);
|
|
|
void handleSliceChanged();
|
|
|
void handleSeriesVisibleChanged();
|
|
|
|
|
|
void setAnimation(PieAnimation* animation);
|
|
|
ChartAnimation* animation() const;
|
|
|
|
|
|
private:
|
|
|
PieSliceData updateSliceGeometry(QPieSlice *slice);
|
|
|
|
|
|
private:
|
|
|
QHash<QPieSlice*, PieSliceItem*> m_sliceItems;
|
|
|
QPieSeries *m_series;
|
|
|
QRectF m_rect;
|
|
|
QPointF m_pieCenter;
|
|
|
qreal m_pieRadius;
|
|
|
qreal m_holeSize;
|
|
|
PieAnimation* m_animation;
|
|
|
|
|
|
};
|
|
|
|
|
|
QTCOMMERCIALCHART_END_NAMESPACE
|
|
|
|
|
|
#endif // PIECHARTITEM_H
|
|
|
|
