#pragma once
#include <QObject>
#include <QLabel>

class MyLabel : public QLabel
{
public:
    explicit MyLabel(QWidget* parent = 0);
    void OnSelectImage(QString OpenFile);
    void OnSelectImage(QImage* img);

    void OnSelectImage(QImage img);

protected:
    void contextMenuEvent(QContextMenuEvent* event) override;   //右键菜单
    void paintEvent(QPaintEvent* event);                        //QPaint画图
    void wheelEvent(QWheelEvent* event) override;               //鼠标滚轮滚动
    void mousePressEvent(QMouseEvent* event) override;          //鼠标摁下
    void mouseMoveEvent(QMouseEvent* event) override;           //鼠标松开
    void mouseReleaseEvent(QMouseEvent* event) override;        //鼠标发射事件


private slots:
    void OnZoomInImage();       //图片放大
    void OnZoomOutImage();      //图片缩小
    void OnPresetImage();       //图片还原

private:
    QImage Image;           //显示的图片
    qreal ZoomValue = 1.0;  //鼠标缩放值
    int XPtInterval = 0;    //平移X轴的值
    int YPtInterval = 0;    //平移Y轴的值
    QPoint OldPos;          //旧的鼠标位置
    bool Pressed = false;   //鼠标是否被摁压
    QString LocalFileName;  //图片名
};