127 lines
3.6 KiB
C++
127 lines
3.6 KiB
C++
#ifndef MYGRAPHICSSCENE_H
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#define MYGRAPHICSSCENE_H
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#include <QObject>
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#include <QGraphicsScene>
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#include <QVector>
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#include <QPainter>
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#include <QGraphicsItem>
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#include <QGraphicsScene>
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#include <QGraphicsSceneMouseEvent>
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#include <QPixmap>
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#include <QPicture>
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#include <QList>
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#include <QtGui>
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#include <QList>
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#include "mygraphicsgriditem.h"
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#include "machine/comm/datadef.h"
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#include "datafile/dataoperat.h"
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#include "main.h"
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#define DRAWMARGINS 200.0 //item在场景中绘制时的边距(留边)
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#define TYPE_DRAG -1 //拖拽
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#define TYPE_LINE 0 //直线
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#define TYPE_ARC 1 //三点圆
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struct GLineItem
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{
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u16 order;//顺序
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WORD type;
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QGraphicsPolygonItem* item;
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QList<QPointF> points;
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};
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struct GPathItem
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{
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u16 order;//顺序
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WORD type;
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QGraphicsPathItem* item;
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QList<QPointF> points;
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};
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struct SelectPoint
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{
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int type;//选中点类型 0：起点 1：终点 2:中间点
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int idx;//图元索引
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};
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///
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/// \brief The MyGraphicsScene class
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///场景层 记录实际数据
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///
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class MyGraphicsScene: public QGraphicsScene
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{
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Q_OBJECT
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public:
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MyGraphicsScene();
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~MyGraphicsScene();
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protected:
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void mousePressEvent(QGraphicsSceneMouseEvent *event);
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void mouseMoveEvent(QGraphicsSceneMouseEvent *event);
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void mouseReleaseEvent(QGraphicsSceneMouseEvent *event);
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// void drawBackground(QPainter *painter, const QRectF &rect);
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private:
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QByteArray m_dispDat;
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MyGraphicsGridItem *m_grid;
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qreal m_radius = 0.5;
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QBrush m_selectedBrush;
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QBrush m_defaultBrush;
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QList<QGraphicsEllipseItem *> m_ellipseItemList; //顶点圆圈的元素
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QList<GLineItem> m_lineItemList; //直线元素
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QList<GPathItem> m_pathItemList; //路径元素
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QPointF m_dragOffset; //拖拽点的坐标
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QGraphicsEllipseItem *m_draggingPoint; //拖拽点的元素
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int m_ArcCount = 0; //圆弧记录坐标个数 个数在0-2之间
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int m_shapeType = TYPE_DRAG;
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bool m_isAdsorption = true;
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int m_maxSegmentLength = 20;
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int m_addOrder;//绘制图元时的绘制顺序
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private:
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// 计算两点之间的中点
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QPointF midpoint(const QPointF &p1, const QPointF &p2);
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// 计算两点之间连线的斜率
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double slope(const QPointF &p1, const QPointF &p2);
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// 计算圆心
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bool findCircleCenter(const QPointF &p1, const QPointF &p2, const QPointF &p3, QPointF ¢er, double &radius);
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// 计算半径
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double findRadius(const QPointF ¢er, const QPointF &point);
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// 计算两点之间的距离平方
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double distanceSquared(QPointF p1, QPointF p2);
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public:
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QList<QGraphicsEllipseItem *> getPointList();
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QList<GLineItem> getLineItemList();
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QList<GPathItem> getPathItemList();
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void addItemToScene(QByteArray ary);
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void addItemListToScene(QList<drawItem> list);
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void addGrid(double gridSpacing,QRectF rect);
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void cleanScene();
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bool getCurSelectState();
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bool initAPoint();
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void forwardAndBackward(int idx);
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void insertPoint(int dir);
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void removeSelectPoint();
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void setShapeType(int type);
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void setAdsorption(bool adsorption);
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void setLastPointSelected();
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void setMaxSegmentLength(int value);
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int getMaxSegmentLength();
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int getArcItem(QList<QPointF> points, QGraphicsPathItem* item, double threex[], double threey[]);
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int getGLineItem(QGraphicsEllipseItem* p,QPointF p1);
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int getGPathItem(QGraphicsEllipseItem*p,QPointF p1);
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void setXYMove(double valX,double valY);
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void revokeLastItem();//撤销最后一个图元
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signals:
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void siCurrentIndex(int idx);
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public slots:
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};
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#endif // MYGRAPHICSSCENE_H
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