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#ifndef LINECHARTITEM_H
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#define LINECHARTITEM_H
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#include "qchartglobal.h"
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#include "chartitem_p.h"
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#include <QPen>
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QTCOMMERCIALCHART_BEGIN_NAMESPACE
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class ChartPresenter;
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class QLineChartSeries;
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class LineChartAnimationItem;
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class LineChartItem : public QObject , public ChartItem
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{
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Q_OBJECT
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public:
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LineChartItem(ChartPresenter* presenter, QLineChartSeries* series,QGraphicsItem *parent = 0);
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~ LineChartItem(){};
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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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QPainterPath shape() const;
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void setPen(const QPen& pen);
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const Domain& domain() const { return m_domain;}
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virtual void addPoint(const QPointF& );
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virtual void addPoints(const QVector<QPointF>& points);
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virtual void removePoint(const QPointF& point);
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virtual void setPoint(const QPointF& oldPoint, const QPointF& newPoint);
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virtual void setPoint(int index,const QPointF& point);
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void setPointsVisible(bool visible);
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void clear();
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void clearView();
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int count() const { return m_data.size();}
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const QVector<QPointF>& points(){ return m_data;}
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protected:
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virtual void updateGeometry();
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virtual void updateData();
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virtual void updateDomain();
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//refactor
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void calculatePoint(QPointF& point, int index, const QLineChartSeries* series,const QSizeF& size, const Domain& domain) const;
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void calculatePoints(QVector<QPointF>& points,QHash<int,int>& hash,const QLineChartSeries* series, const QSizeF& size, const Domain& domain) const;
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protected slots:
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void handleModelChanged(int index);
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void handleDomainChanged(const Domain& domain);
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void handleGeometryChanged(const QRectF& size);
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private:
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ChartPresenter* m_presenter;
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QPainterPath m_path;
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QSizeF m_size;
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QRectF m_rect;
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QRectF m_clipRect;
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Domain m_domain;
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QList<QGraphicsItem*> m_points;
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QVector<QPointF> m_data;
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QHash<int,int> m_hash;
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QLineChartSeries* m_series;
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QPen m_pen;
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bool m_dirtyData;
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bool m_dirtyGeometry;
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bool m_dirtyDomain;
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};
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QTCOMMERCIALCHART_END_NAMESPACE
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#endif
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