scribblearea.h

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#ifndef SCRIBBLEAREA_H
#define SCRIBBLEAREA_H

#include <QColor>
#include <QImage>
#include <QPoint>
#include <QWidget>

#include "point.h"

//! [0]
class ScribbleArea : public QWidget
{
    Q_OBJECT

public:
    Point *lastMyPoint = NULL;
    Point *thisMyPoint = NULL;
    QImage *lastRect = NULL;
    bool draw_line = false;
    bool setStrat = false;

public:
    ScribbleArea(QWidget *parent = nullptr);

    bool openImage(const QString &fileName);
    bool saveImage(const QString &fileName, const char *fileFormat);
    void setPenColor(const QColor &newColor);
    void setPenWidth(int newWidth);
    void add_point();
    void delete_point();
    void update_about();
    void update_name();
    void t2_build();
    void drawAllLineFromSQL();
    void drawAllLineFromLib();
    void delete_line();
    void setStartPoint();
    void setEndPoint();
    void showLine(QPoint A,QPoint B);
    void drawtextAt(QPoint pos,QString s);


    bool isModified() const { return modified; }
    QColor penColor() const { return myPenColor; }
    int penWidth() const { return myPenWidth; }
    void add_right_click_menu();
    void ad_menu_2();
    void drawPointAt(const QPoint &pos);
    void clear_drawPointAt(const QPoint &pos);
    void get_build_name();
    void drawLineA2B(const QPoint &startPoint,const QPoint &endPoint);
    void clear_drawLineA2B(const QPoint &startPoint,const QPoint &endPoint);
    void drawAllPointFromSQL();
    void clear_drawAllPointFromSQL();
    void set_about();
    void test();
    QPoint getltPoint(int x1,int y1,int x2,int y2);
    QPoint getrdPoint(int x1,int y1,int x2,int y2);

public slots:
    void onTaskBoxContextMenuEvent();
    void clearImage();
    void print();

protected:
    void mousePressEvent(QMouseEvent *event) override;
    void mouseMoveEvent(QMouseEvent *event) override;
    void mouseReleaseEvent(QMouseEvent *event) override;
    void paintEvent(QPaintEvent *event) override;
    void resizeEvent(QResizeEvent *event) override;

public:
    void drawLineTo(const QPoint &endPoint);
    void clear_drawLineTo(const QPoint &endPoint);
    void resizeImage(QImage *image, const QSize &newSize);

    bool modified = false;
    bool scribbling = false;
    int myPenWidth = 1;
    QColor myPenColor = Qt::blue;
    QImage image;
    QPoint lastPoint;
    QPoint *startPoint;
    QPoint *endPoint;
    bool showmap;
};
//! [0]

#endif