#pragma once

#include <QGraphicsView>
#include <QGraphicsItem>
#include <QGraphicsScene>
#include <QMouseEvent>

#include "lp_qt_utils.h"

class LP_QT_UTILS_EXPORT DefectCardViewer : public QGraphicsView
{
    Q_OBJECT

public:
    DefectCardViewer(QGraphicsScene *scene, QWidget *parent = 0);
    DefectCardViewer(QWidget *parent = 0);
    virtual ~DefectCardViewer();

    QGraphicsPixmapItem* setImage(QImage& img);
    void fitInWindow();

signals:
    void sigScaled(qreal scale);

protected:
    virtual void wheelEvent(QWheelEvent *evt) override;
    virtual void closeEvent(QCloseEvent *evt) override;

    virtual void mousePressEvent(QMouseEvent *evt) override;
    virtual void mouseMoveEvent(QMouseEvent *evt) override;
    virtual void mouseReleaseEvent(QMouseEvent *evt) override;

	virtual void drawForeground(QPainter *painter, const QRectF &rt) override;
private:
    void init();
    void scaleImage(qreal scale);
private:
    QGraphicsPixmapItem* img_item_ptr_{ nullptr };
    QSize origin_img_size_;
    QImage* img_ptr_{ nullptr };
    qreal scale_{ 1.0 };

    QGraphicsLineItem *scale_line_ptr_{ nullptr };
    QPointF scale_line_scene_pos1_;
    QPointF scale_line_scene_pos2_;
};