#ifndef SCALE_H
#define SCALE_H

//Qt
#include <QColor>
#include <QPainter>
#include <QPainterPath>
#include <QPaintEvent>
#include <QVector>
#include <QPainterPathStroker>
#include <QPen>
#include <QWidget>
#include <QPaintEngine>
#include <QPoint>
#include <QRect>
#include <QThread>

class Scale
{
public:
    Scale(int scaleLength,int scaleCount,int width,int height,const QPoint& topleft,const QPoint& bottomright){
        _scaleLength = scaleLength;
        _scaleCount = scaleCount;
        _topLeft = topleft;
        _bottomRight = bottomright;
        _scaleColor = QColor(192,192,192);
        _scalex = 1;
        _scaley = 1;
        _width = width;
        _height = height;
    }
    Scale(){
        _scaleLength = 6;
        _scaleCount = 8;
        _topLeft = QPoint(90,90);
        _bottomRight = QPoint(300,300);
        _scaleColor = QColor(192,192,192);
        _scalex = 1;
        _scaley = 1;
        _width = 0;
        _height = 0;
    }

    void paint(QPixmap& w, QPaintEvent* event=nullptr){
        _scaleCount = _scaleCount > 8? _scaleCount : 8;
        QPainter painter;
        painter.begin(&w);
        painter.setRenderHint(QPainter::Antialiasing, true);
        painter.scale(_scalex,_scaley);
        _rect = QRect(QPoint(_topLeft.x()/_scalex,_topLeft.y()/_scaley),QPoint(_bottomRight.x()/_scalex,_bottomRight.y()/_scaley));
        painter.setPen(QPen(Qt::black, 0.8));
        painter.setBrush(_scaleColor);
        painter.drawRect(_rect);
        int width = _rect.width();
        int height = _rect.height();
        int tmp = _scaleCount/2;
        if(_width==0){
            _width = width;
        }
        if(_height==0){
            _height = height;
        }

        // 上
        for (int i = 1; i < _scaleCount; ++i) {
            int x = _rect.left() + (i * width / _scaleCount);
            painter.drawLine(x, _rect.y(), x, _rect.y() - _scaleLength);
            const QRect rectangle = QRect(QPoint(x-25, _rect.y()-50), QPoint(x+25, _rect.y()- _scaleLength));
            painter.drawText(rectangle,Qt::AlignBottom,QString::number((i-tmp) * _width / _scaleCount));
        }

        // 下
        for (int i = 1; i < _scaleCount; ++i) {
            int x = _rect.left() + (i * width / _scaleCount);
            painter.drawLine(x, _rect.y() + height, x, _rect.y() + height + _scaleLength);
            const QRect rectangle = QRect(x, _rect.y() + height + _scaleLength,x, _rect.y() + height + 100);
            painter.drawText(rectangle,Qt::AlignTop,QString::number((i-tmp) * _width / _scaleCount));
        }

        //左
        for (int i = 1; i < _scaleCount; ++i) {
            int y = _rect.top() + (i * height / _scaleCount);
            painter.drawLine(_rect.x() - _scaleLength, y, _rect.x(), y);
            const QRect rectangle = QRect(_rect.x() -_scaleLength-100, y, _rect.x() -_scaleLength, y);
            painter.drawText(rectangle,Qt::AlignRight,QString::number((i-tmp) * _height / _scaleCount));
        }


        //右
        for (int i = 1; i < _scaleCount; ++i) {
            int y = _rect.top() + (i * height / _scaleCount);
            painter.drawLine(_rect.x() + width, y, _rect.x() + width + _scaleLength, y);
            const QRect rectangle = QRect(_rect.x() + width + _scaleLength, y, _rect.x() + width + _scaleLength+100, y);
            painter.drawText(rectangle,Qt::AlignLeft,QString::number((i-tmp) * _height / _scaleCount));
        }
        painter.end();

    }

    int scaleLength() const{
        return _scaleLength;
    }
    void setScaleLength(int scaleLength){
        _scaleLength = scaleLength;
    }

    double scalex() const
    {
        return _scalex;
    }

    void setScalex(double scalex)
    {
        _scalex = scalex;
    }

    double scaley() const
    {
        return _scaley;
    }

    void setScaley(double scaley)
    {
        _scaley = scaley;
    }

    QRect rect() const{
        return _rect;
    }

    QPoint topLeft() const
    {
        return _topLeft;
    }

    void setTopLeft(const QPoint &topLeft)
    {
        _topLeft = topLeft;
    }

    QPoint bottomRight() const
    {
        return _bottomRight;
    }

    void setBottomRight(const QPoint &bottomRight)
    {
        _bottomRight = bottomRight;
    }

    int width() const
    {
        return _width;
    }

    void setWidth(int width)
    {
        _width = width;
    }

    int height() const
    {
        return _height;
    }

    void setHeight(int height)
    {
        _height = height;
    }

    int scaleCount() const
    {
        return _scaleCount;
    }

    void setScaleCount(int scaleCount)
    {
        _scaleCount = scaleCount;
    }

private:
    int _scaleLength;
    int _scaleCount;
    QPoint _topLeft;
    QPoint _bottomRight;
    QRect _rect;
    QColor _scaleColor;
    double _scalex;
    double _scaley;
    int _width;
    int _height;

};

#endif // SCALE_H