DAShapeKeyPoint.h

#ifndef DASHAPEKEYPOINT_H
#define DASHAPEKEYPOINT_H
#include <QRect>
#include "DAGraphicsViewGlobal.h"
namespace DA
{
class DAGRAPHICSVIEW_API DAShapeKeyPoint
{
public:
    enum KeyPoint
    {
        TopLeft = 0,
        TopCenter,
        TopRight,
        CenterLeft,
        Center,
        CenterRight,
        BottomLeft,
        BottomCenter,
        BottomRight,
        None = 128
    };
    DAShapeKeyPoint(KeyPoint kp = KeyPoint::Center);
    ~DAShapeKeyPoint();
    // 是否有效
    bool isValid() const;
    // 关键点在矩形的绝对
    QPoint rectKeyPoint(const QRect& r) const;
    QPointF rectKeyPoint(const QRectF& r) const;
    static QPoint rectKeyPoint(const QRect& r, const DAShapeKeyPoint& kp);
    static QPointF rectKeyPoint(const QRectF& r, const DAShapeKeyPoint& kp);
    // 值
    KeyPoint value() const;
    // 等号操作符
    DAShapeKeyPoint& operator=(KeyPoint kp);
    bool operator==(KeyPoint kp) const;
 
private:
    KeyPoint mKeyPoint { KeyPoint::None };
};
}  // end DA
#endif  // DASHAPEKEYPOINT_H