DiagramDesigner/include/graphicsItem/itemControlHandle.h

#ifndef ITEMCONTROLHANDLE_H
#define ITEMCONTROLHANDLE_H

#include <QGraphicsRectItem>

enum HandleType
{
    T_none = 0,
    T_resize, //调整大小
    T_rotate, //旋转
    T_editShape, //编辑形状
    T_text,    //文本
    T_lineIn, //入线口
    T_lineOut, //出线口
    T_lineInOut //双端线
};

enum HandleTag
{
    H_none = 0,
    H_leftTop,
    H_top,
    H_rightTop,
    H_right,
    H_rightBottom,
    H_bottom,
    H_leftBottom,
    H_left, //8
    H_rotate_leftTop,
    H_rotate_rightTop,
    H_rotate_rightBottom,
    H_rotate_leftBottom, //12
    H_edit,
    H_textCaption = 40, //标题文本
    H_connect = 50      //连接操作点从50开始，前面预留
};

enum PortPos
{
    P_top = 0,
    P_down,
    P_left,
    P_right
};

const int HNDLE_SIZE = 8;

class GraphicsBaseItem;

class ItemControlHandle : public QObject,public QGraphicsItem
{
    Q_OBJECT

public:
    ItemControlHandle(QGraphicsItem *parent);
    virtual ~ItemControlHandle();

public:
    virtual int getSize();
    virtual void move(double, double);

    void setType(HandleType ht) { m_type = ht; }
    HandleType getType() { return m_type; }

    void setTag(int ht) { m_tag = ht; }
    int getTag() { return m_tag; }

    void setEnable(bool b){m_enable = b;}
    bool enable(){return m_enable;}

    void setIfShow(bool b){m_ifShow = b;}
    bool ifShow(){return m_ifShow;}

    GraphicsBaseItem*   getParentPtr() const {return _parent;}
    void setParent(GraphicsBaseItem* p) {_parent = p;}
protected:
    virtual void hoverEnterEvent(QGraphicsSceneHoverEvent*) override;
    virtual void hoverLeaveEvent(QGraphicsSceneHoverEvent*) override;
    virtual void paint(QPainter*, const QStyleOptionGraphicsItem*, QWidget*) override;
protected:
    HandleType   m_type;
    int          m_tag;
    bool         m_enable;
    bool         m_ifShow;
    GraphicsBaseItem*   _parent;
};

#endif