using System;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Media.Imaging;
using System.Windows.Shapes;



namespace Psychlops{

	public interface Shape : Internal.PrimitiveFigure
	{
		Color fill { get; set; }
		Stroke stroke { get; set; }
	}
	public static class ShapeExtention
	{
		public static void draw(this Shape drawee, Color c)
		{
			Color tmp_col = drawee.fill;
			Stroke tmp_strk = drawee.stroke;
			drawee.fill = c;
			drawee.stroke = new Stroke();
			drawee.draw();
			drawee.fill = tmp_col;
			drawee.stroke = tmp_strk;
		}
		public static void draw(this Shape drawee, Stroke strk)
		{
			Color tmp_col = drawee.fill;
			Stroke tmp_strk = drawee.stroke;
			drawee.fill = new Color(0,0,1,1);
			drawee.stroke = strk;
			drawee.draw();
			drawee.fill = tmp_col;
			drawee.stroke = tmp_strk;
		}
	}

	public partial struct Stroke
	{
		public double thick;
		public Color color;
		public Stroke(Color c, double t)
		{
			color = c;
			thick = t;
		}
		public void set(Color c, double t)
		{
			color = c;
			thick = t;
		}
	}

	public partial class Line : Shape
	{
		public Point begin, end;

		public Line(double x1, double y1, double x2, double y2)
		{
			set(x1, y1, x2, y2);
		}
		public Line(Point v1, Point v2)
		{
			set(v1, v2);
		}
		public void set(double x1, double y1, double x2, double y2)
		{
			begin.set(x1, y1);
			end.set(x2, y2);
		}
		public void set(Point v1, Point v2)
		{
			begin = v1;
			end   = v2;
		}

		public Figure shift(Point p)
		{
			begin += p;
			end   += p;
			return this;
		}
		public Figure centering(Point p)
		{
			double h = width, v = height;
			begin.x = p.x - h / 2.0;
			begin.y = p.y - v / 2.0;
			end.x = begin.x + h;
			end.y = begin.y + v;
			return this;
		}

		public void draw()
		{
			Main.drawable.line(this);
		}

		public double left { get { return begin.x < end.x ? begin.x : end.x; } }
		public double top { get { return begin.y < end.y ? begin.y : end.y; ; } }
		public double right { get { return begin.x > end.x ? begin.x : end.x; ; } }
		public double bottom { get { return begin.y > end.y ? begin.y : end.y; ; } }
		public double width { get { return Math.abs(begin.x - end.x); } }
		public double height { get { return Math.abs(begin.y - end.y); } }

		public Color fill { get; set; }
		public Stroke stroke { get; set; }
	}


	public partial class Rectangle : Shape
	{
		public Point v1, v2;

		public Rectangle()
		{
			set(0,0);
		}
		public Rectangle(double wid, double hei)
		{
			set(wid, hei);
		}
		
		public Rectangle set(double wid, double hei)
		{
			v1.set(0, 0, 0);
			v2.set(wid, hei, 0);
			return this;
		}

		public Figure shift(Point p)
		{
			v1 += p;
			v2 += p;
			return this;
		}
		public Figure centering(Point p)
		{
			double h = width, v = height;
			v1.x = p.x - h / 2.0;
			v1.y = p.y - v / 2.0;
			v2.x = v1.x + h;
			v2.y = v1.y + v;
			return this;
		}

		public void draw()
		{
			Main.drawable.rect(this);
		}

		public double left   { get { return v1.x; } }
		public double top    { get { return v1.y; } }
		public double right  { get { return v2.x; } }
		public double bottom { get { return v2.y; } }
		public double width { get { return Math.abs(v1.x - v2.x); } }
		public double height { get { return Math.abs(v1.y - v2.y); } }


		public Color fill { get; set; }
		public Stroke stroke { get; set; }

		public override string ToString()
		{
			return "Left:" + left.ToString() + " Top:" + top.ToString() + " Right:" + right.ToString() + " Bottom:" + bottom.ToString();
		}
	}


	public partial class Ellipse : Shape
	{
		public Point datum;
		public double xdiameter, ydiameter;

		public Ellipse()
		{
			set(0,0);
		}
		public Ellipse(double wid, double hei)
		{
			set(wid, hei);
		}

		public Ellipse set(double wid, double hei)
		{
			xdiameter = wid;
			ydiameter = hei;
			return this;
		}
		public Figure shift(Point p)
		{
			datum += p;
			return this;
		}
		public Figure centering(Point p)
		{
			datum = p;
			return this;
		}

		public void draw()
		{
			Main.drawable.ellipse(this);
		}

		public double left { get { return datum.x - xdiameter/2.0; } }
		public double top { get { return datum.y - ydiameter / 2.0; } }
		public double right { get { return datum.x + xdiameter / 2.0; } }
		public double bottom { get { return datum.y + ydiameter / 2.0; } }
		public double width { get { return Math.abs(xdiameter); } }
		public double height { get { return Math.abs(ydiameter); } }

		public Color fill { get; set; }
		public Stroke stroke { get; set; }
	}


	public partial class Polygon : Shape
	{
		public Point datum;
		public System.Collections.Generic.List<Point> vertices;

		public Polygon()
		{
			vertices = new System.Collections.Generic.List<Point>();
		}
		public Polygon(double[] verts)
		{
			vertices = new System.Collections.Generic.List<Point>();
			for (int i=0; i < verts.Length; i+=2)
			{
				vertices.Add(new Point(verts[i], verts[i+1]));
			}

		}
		public Polygon(Point[] verts)
		{
			vertices = new System.Collections.Generic.List<Point>();
			foreach (Point p in verts)
			{
				vertices.Add(p);
			}

		}
		public Polygon append(Point p) { vertices.Add(p); return this; }
		public Polygon append(double x, double y) { return append(new Point(x, y, 0.0)); }
		public Polygon append(double x, double y, double z) { return append(new Point(x, y, z)); }


		public Figure shift(Point p)
		{
			datum += p;
			return this;
		}
		public Figure centering(Point p)
		{
			datum = p;
			return this;
		}

		public void draw()
		{
			Main.drawable.polygon(this);
		}

		public Color fill { get; set; }
		public Stroke stroke { get; set; }
	}

}