38 lines
1008 B
C++
38 lines
1008 B
C++
#ifndef GRAPHICSPOLYGONITEM_H
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#define GRAPHICSPOLYGONITEM_H
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#include "graphicsBaseItem.h"
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class GraphicPolygonItem : public GraphicsBaseItem
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{
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Q_OBJECT
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public:
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GraphicPolygonItem(QGraphicsItem *parent = 0);
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virtual ~GraphicPolygonItem();
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void resize(int,double, double, const QPointF&) override;
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void updateCoordinate() override;
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void move(const QPointF&) override;
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QJsonObject serialize() const override;
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static QGraphicsItem *createFromJson(const QJsonObject &obj);
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void editShape(int, const QPointF&) override;
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void addPoint(const QPointF&) override;
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bool endDrawing() override;
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QPolygonF getPoints(void) { return m_points; }
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protected:
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QPainterPath shape() override;
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QRectF boundingRect();
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void paint(QPainter*, const QStyleOptionGraphicsItem*, QWidget*) override;
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private:
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void updateHandles() override;
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QPolygonF m_lastPoints; //记录上一时刻的点集数据，用于缩放等操作
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QPolygonF m_points;
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};
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#endif
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