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using System;
using System.Collections.Generic;
using System.Text;
using System.Xml.Serialization;
namespace Crow
{
public struct Rectangle
{
#region private fields
int _x;
int _y;
int _width;
int _height;
#endregion
#region ctor
public Rectangle(Point p, Size s)
{
_x = p.X;
_y = p.Y;
_width = s.Width;
_height = s.Height;
}
public Rectangle(Size s)
{
_x = 0;
_y = 0;
_width = s.Width;
_height = s.Height;
}
public Rectangle(int x, int y, int width, int height)
{
_x = x;
_y = y;
_width = width;
_height = height;
}
#endregion
#region PROPERTIES
[XmlIgnore]public int X{
get { return _x; }
set { _x = value; }
}
[XmlIgnore]public int Y{
get { return _y; }
set { _y = value; }
}
[XmlIgnore]public int Left{
get { return _x; }
set { _x = value; }
}
[XmlIgnore]public int Top{
get { return _y; }
set { _y = value; }
}
[XmlIgnore]public int Right{
get { return _x + _width; }
}
[XmlIgnore]public int Bottom{
get { return _y + _height; }
}
[XmlIgnore]public int Width{
get { return _width; }
set { _width = value; }
}
[XmlIgnore]public int Height{
get { return _height; }
set { _height = value; }
}
[XmlIgnore]public Size Size{
get { return new Size(Width, Height); }
set
{
Width = value.Width;
Height = value.Height;
}
}
[XmlIgnore]public Point Position{
get { return new Point(X, Y); }
set
{
X = value.X;
Y = value.Y;
}
}
[XmlIgnore]public Point TopLeft{
set
{
X = value.X;
Y = value.Y;
}
get { return new Point(X, Y); }
}
[XmlIgnore]public Point TopRight{
get { return new Point(Right, Y); }
}
[XmlIgnore]public Point BottomLeft{
get { return new Point(X, Bottom); }
}
[XmlIgnore]public Point BottomRight{
get { return new Point(Right, Bottom); }
}
[XmlIgnore]public Point Center
{
get { return new Point(Left + Width / 2, Top + Height / 2); }
}
#endregion
#region FUNCTIONS
public void Inflate(int xDelta, int yDelta)
{
this.X -= xDelta;
this.Width += 2 * xDelta;
this.Y -= yDelta;
this.Height += 2 * yDelta;
}
public void Inflate(int delta)
{
Inflate (delta, delta);
}
public bool ContainsOrIsEqual(Point p)
{
return (p.X >= X && p.X <= X + Width && p.Y >= Y && p.Y <= Y + Height) ?
true : false;
}
public bool ContainsOrIsEqual(Rectangle r)
{
return r.TopLeft >= this.TopLeft && r.BottomRight <= this.BottomRight ? true : false;
}
public bool Intersect(Rectangle r)
{
int maxLeft = Math.Max(this.Left, r.Left);
int minRight = Math.Min(this.Right, r.Right);
int maxTop = Math.Max(this.Top, r.Top);
int minBottom = Math.Min(this.Bottom, r.Bottom);
return (maxLeft < minRight) && (maxTop < minBottom) ?
true : false;
}
public Rectangle Intersection(Rectangle r)
{
Rectangle result = new Rectangle();
if (r.Left >= this.Left)
result.Left = r.Left;
else
result.TopLeft = this.TopLeft;
if (r.Right >= this.Right)
result.Width = this.Right - result.Left;
else
result.Width = r.Right - result.Left;
if (r.Top >= this.Top)
result.Top = r.Top;
else
result.Top = this.Top;
if (r.Bottom >= this.Bottom)
result.Height = this.Bottom - result.Top;
else
result.Height = r.Bottom - result.Top;
return result;
}
#endregion
#region operators
public static implicit operator Rectangle(System.Drawing.Rectangle r)
{
return new Rectangle(r.X, r.Y, r.Width, r.Height);
}
public static implicit operator System.Drawing.Rectangle(Rectangle r)
{
return new System.Drawing.Rectangle(r.X, r.Y, r.Width, r.Height);
}
public static Rectangle operator +(Rectangle r1, Rectangle r2)
{
int x = Math.Min(r1.X, r2.X);
int y = Math.Min(r1.Y, r2.Y);
int x2 = Math.Max(r1.Right, r2.Right);
int y2 = Math.Max(r1.Bottom, r2.Bottom);
return new Rectangle(x, y, x2 - x, y2 - y);
}
public static Rectangle operator +(Rectangle r, Point p)
{
return new Rectangle(r.X + p.X, r.Y + p.Y, r.Width, r.Height);
}
public static Rectangle operator -(Rectangle r, Point p)
{
return new Rectangle(r.X - p.X, r.Y - p.Y, r.Width, r.Height);
}
public static bool operator ==(Rectangle r1, Rectangle r2)
{
return r1.TopLeft == r2.TopLeft && r1.Size == r2.Size ? true : false;
}
public static bool operator !=(Rectangle r1, Rectangle r2)
{
return r1.TopLeft == r2.TopLeft && r1.Size == r2.Size ? false : true;
}
#endregion
public RectanglesRelations test(Rectangle r)
{
if (r == this)
return RectanglesRelations.Equal;
int nbrPtIncluded = 0;
if (this.ContainsOrIsEqual(r.TopLeft))
nbrPtIncluded++;
if (this.ContainsOrIsEqual(r.TopRight))
nbrPtIncluded++;
if (this.ContainsOrIsEqual(r.BottomLeft))
nbrPtIncluded++;
if (this.ContainsOrIsEqual(r.BottomRight))
nbrPtIncluded++;
switch (nbrPtIncluded)
{
case 0:
return RectanglesRelations.NoRelation;
case 4:
return RectanglesRelations.Contains;
default:
return RectanglesRelations.Intersect;
}
}
public static readonly Rectangle Zero = new Rectangle(0, 0, 0, 0);
public static Rectangle Empty
{
get { return Zero; }
}
public override string ToString()
{
return string.Format("{0},{1},{2},{3}", X, Y, Width, Height);
}
public static Rectangle Parse(string s)
{
string[] d = s.Split(new char[] { ',' });
return new Rectangle(
int.Parse(d[0]),
int.Parse(d[1]),
int.Parse(d[2]),
int.Parse(d[3]));
}
public override int GetHashCode ()
{
unchecked // Overflow is fine, just wrap
{
int hash = 17;
// Suitable nullity checks etc, of course :)
hash = hash * 23 + _x.GetHashCode();
hash = hash * 23 + _y.GetHashCode();
hash = hash * 23 + _width.GetHashCode();
hash = hash * 23 + _height.GetHashCode();
return hash;
}
}
public override bool Equals (object obj)
{
return (obj == null || obj.GetType() != typeof(Rectangle)) ?
false :
this == (Rectangle)obj;
}
}
}
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