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/****************************************************************************
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**
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** Copyright (C) 2012 Digia Plc
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** All rights reserved.
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** For any questions to Digia, please use contact form at http://qt.digia.com
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**
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** This file is part of the Qt Commercial Charts Add-on.
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**
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** $QT_BEGIN_LICENSE$
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** Licensees holding valid Qt Commercial licenses may use this file in
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** accordance with the Qt 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 Digia.
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**
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** If you have questions regarding the use of this file, please use
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** contact form at http://qt.digia.com
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef SCATTERPRESENTER_H
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#define SCATTERPRESENTER_H
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#include "qchartglobal.h"
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#include "xychartitem_p.h"
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#include <QGraphicsEllipseItem>
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#include <QPen>
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QTCOMMERCIALCHART_BEGIN_NAMESPACE
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class QScatterSeries;
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class Marker;
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class ScatterChartItem : public XYChartItem
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{
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Q_OBJECT
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public:
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explicit ScatterChartItem(QScatterSeries *series, ChartPresenter *presenter);
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public:
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//from QGraphicsItem
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QRectF boundingRect() const;
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void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget);
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void setPen(const QPen &pen);
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void setBrush(const QBrush &brush);
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void markerSelected(Marker *item);
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public Q_SLOTS:
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void handleUpdated();
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private:
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void createPoints(int count);
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void deletePoints(int count);
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protected:
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void setLayout(QVector<QPointF> &points);
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private:
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QScatterSeries *m_series;
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QGraphicsItemGroup m_items;
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int m_shape;
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int m_size;
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QRectF m_rect;
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};
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class Marker: public QAbstractGraphicsShapeItem
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{
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public:
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Marker(QAbstractGraphicsShapeItem *item , ScatterChartItem *parent) : QAbstractGraphicsShapeItem(0) ,m_item(item), m_parent(parent), m_index(-1)
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{
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}
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~Marker()
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{
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delete m_item;
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}
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void setIndex(int index)
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{
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m_index=index;
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}
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int index() const
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{
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return m_index;
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}
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QPainterPath shape() const
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{
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return m_item->shape();
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}
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QRectF boundingRect() const
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{
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return m_item->boundingRect();
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}
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bool contains(const QPointF &point) const
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{
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return m_item->contains(point);
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}
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void setPen(const QPen &pen)
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{
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m_item->setPen(pen);
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}
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void setBrush(const QBrush &brush)
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{
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m_item->setBrush(brush);
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}
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void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
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{
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m_item->paint(painter,option,widget);
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}
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protected:
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void mousePressEvent(QGraphicsSceneMouseEvent *event)
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{
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Q_UNUSED(event)
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m_parent->markerSelected(this);
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}
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private:
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QAbstractGraphicsShapeItem* m_item;
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ScatterChartItem* m_parent;
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int m_index;
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};
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QTCOMMERCIALCHART_END_NAMESPACE
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#endif // SCATTERPRESENTER_H
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