|
|
#ifndef LINECHARTITEM_H
|
|
|
#define LINECHARTITEM_H
|
|
|
|
|
|
#include "qchartglobal.h"
|
|
|
#include "chartitem_p.h"
|
|
|
#include <QPen>
|
|
|
|
|
|
QTCOMMERCIALCHART_BEGIN_NAMESPACE
|
|
|
|
|
|
class ChartPresenter;
|
|
|
class QLineSeries;
|
|
|
|
|
|
class LineChartItem : public QObject , public ChartItem
|
|
|
{
|
|
|
Q_OBJECT
|
|
|
public:
|
|
|
LineChartItem(ChartPresenter* presenter, QLineSeries* series,QGraphicsItem *parent = 0);
|
|
|
~ LineChartItem(){};
|
|
|
|
|
|
//from QGraphicsItem
|
|
|
QRectF boundingRect() const;
|
|
|
void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget);
|
|
|
QPainterPath shape() const;
|
|
|
|
|
|
void setPen(const QPen& pen);
|
|
|
void setPointsVisible(bool visible);
|
|
|
|
|
|
public slots:
|
|
|
void handlePointAdded(int index);
|
|
|
void handlePointRemoved(int index);
|
|
|
void handlePointReplaced(int index);
|
|
|
void handleUpdated();
|
|
|
void handleDomainChanged(const Domain& domain);
|
|
|
void handleGeometryChanged(const QRectF& size);
|
|
|
|
|
|
public:
|
|
|
virtual void updateItem(QVector<QPointF>& oldPoints,QVector<QPointF>& newPoints);
|
|
|
virtual void updateItem(QVector<QPointF>& oldPoints,int index,QPointF& newPoint);
|
|
|
void applyGeometry(QVector<QPointF>& points);
|
|
|
void createPoints(int count);
|
|
|
void clearPoints(int count);
|
|
|
QPointF calculateGeometryPoint(int index) const;
|
|
|
QVector<QPointF> calculateGeometryPoints() const;
|
|
|
|
|
|
private:
|
|
|
ChartPresenter* m_presenter;
|
|
|
QPainterPath m_path;
|
|
|
QLineSeries* m_series;
|
|
|
QSizeF m_size;
|
|
|
QRectF m_rect;
|
|
|
QRectF m_clipRect;
|
|
|
Domain m_domain;
|
|
|
QGraphicsItemGroup m_items;
|
|
|
QVector<QPointF> m_points;
|
|
|
QPen m_pen;
|
|
|
|
|
|
};
|
|
|
|
|
|
QTCOMMERCIALCHART_END_NAMESPACE
|
|
|
|
|
|
#endif
|
|
|
|
