using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace SOTF_Savegame_Editor.PictureZBoxHelper {
    public struct PictureZBoxTransformation {
        public Point Translation { get { return _translation; } }
        public double Scale { get { return _scale; } }
        private readonly Point _translation;
        private readonly double _scale = 1.0d;

        public PictureZBoxTransformation(Point translation, double scale) {
            _translation = translation;
            _scale = scale;
        }

        public Point ConvertToIm(Point p) {
            return new Point((int)(p.X * _scale + _translation.X), (int)(p.Y * _scale + _translation.Y));
        }

        public Size ConvertToIm(Size p) {
            return new Size((int)(p.Width * _scale), (int)(p.Height * _scale));
        }

        public Rectangle ConvertToIm(Rectangle r) {
            return new Rectangle(ConvertToIm(r.Location), ConvertToIm(r.Size));
        }

        public Point ConvertToPb(Point p) {
            return new Point((int)((p.X - _translation.X) / _scale), (int)((p.Y - _translation.Y) / _scale));
        }

        public Size ConvertToPb(Size p) {
            return new Size((int)(p.Width / _scale), (int)(p.Height / _scale));
        }

        public Rectangle ConvertToPb(Rectangle r) {
            return new Rectangle(ConvertToPb(r.Location), ConvertToPb(r.Size));
        }

        public PictureZBoxTransformation SetTranslate(Point p) {
            return new PictureZBoxTransformation(p, _scale);
        }

        public PictureZBoxTransformation SetTranslate(Point p, double scale) {
            return new PictureZBoxTransformation(p, scale);
        }

        public PictureZBoxTransformation AddTranslate(Point p) {
            return SetTranslate(new Point(p.X + _translation.X, p.Y + _translation.Y));
        }

        public PictureZBoxTransformation SetScale(double scale) {
            return new PictureZBoxTransformation(_translation, scale);
        }
    }
}