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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 QLineSeries;
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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(QLineSeries* 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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void setPointsVisible(bool visible);
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public slots:
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void handlePointAdded(int index);
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void handlePointRemoved(int index);
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void handlePointReplaced(int index);
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void handleUpdated();
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void handleDomainChanged(qreal minX, qreal maxX, qreal minY, qreal maxY);
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void handleGeometryChanged(const QRectF& size);
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protected:
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virtual void updateAllPoints();
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virtual void updatePoints(QVector<QPointF>& points);
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virtual void updatePoint(int index,QPointF& newPoint);
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virtual void setGeometry(QVector<QPointF>& points);
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QVector<QPointF> points() {return m_points;}
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void createPoints(int count);
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void clearPoints(int count);
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QPointF calculateGeometryPoint(int index) const;
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QVector<QPointF> calculateGeometryPoints() const;
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inline bool isEmpty();
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protected:
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qreal m_minX;
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qreal m_maxX;
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qreal m_minY;
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qreal m_maxY;
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QPainterPath m_path;
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QRectF m_rect;
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QLineSeries* m_series;
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QSizeF m_size;
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QRectF m_clipRect;
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QGraphicsItemGroup m_items;
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QVector<QPointF> m_points;
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QPen m_pen;
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friend class LineChartAnimatator;
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};
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QTCOMMERCIALCHART_END_NAMESPACE
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#endif
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