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RectangleV.cs
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RectangleV.cs
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/*
* MetaphysicsIndustries.Utilities
* Copyright (C) 2014 Metaphysics Industries, Inc., Richard Sartor
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
*/
using System;
using System.Collections.Generic;
using System.Text;
using System.Diagnostics;
using System.Drawing;
namespace MetaphysicsIndustries.Utilities
{
[DebuggerDisplay("{X}, {Y}, {Width}, {Height}")]
public struct RectangleV
{
public RectangleV(Rectangle rect)
{
_x=rect.X;
_y = rect.Y;
_width = rect.Width;
_height = rect.Height;
}
public RectangleV(RectangleF rect)
{
_x=rect.X;
_y = rect.Y;
_width = rect.Width;
_height = rect.Height;
}
public RectangleV(float x, float y, float width, float height)
{
_x=x;
_y = y;
_width = width;
_height = height;
}
public RectangleV(Vector topLeft, Vector bottomRight)
{
_x=topLeft.X;
_y = topLeft.Y;
_width = bottomRight.X - topLeft.X;
_height = bottomRight.Y - topLeft.Y;
}
public RectangleV(Vector location, SizeV size)
{
_x = location.X;
_y = location.Y;
_width = size.Width;
_height = size.Height;
}
public static RectangleV FromLTRB(float left, float top, float right, float bottom)
{
return new RectangleV(new Vector(left, top), new Vector(right, bottom));
}
public static RectangleV FromCenterAndSize(Vector center, SizeV size)
{
Vector location = center - new Vector(size.Width, size.Height) / 2;
return new RectangleV(location, size);
}
public static RectangleV BoundingBoxFromPoints(params Vector[] points)
{
if (points == null) { throw new ArgumentNullException("points"); }
if (points.Length < 1)
{
return new RectangleV(0, 0, 0, 0);
}
float xmin = points[0].X;
float xmax = points[0].X;
float ymin = points[0].Y;
float ymax = points[0].Y;
foreach (Vector v in points)
{
xmin = Math.Min(xmin, v.X);
xmax = Math.Max(xmax, v.X);
ymin = Math.Min(ymin, v.Y);
ymax = Math.Max(ymax, v.Y);
}
return RectangleV.FromLTRB(xmin, ymin, xmax, ymax);
}
private float _x;
public float X
{
get { return _x; }
}
private float _y;
public float Y
{
get { return _y; }
}
private float _width;
public float Width
{
get { return _width; }
}
private float _height;
public float Height
{
get { return _height; }
}
public float Left
{
get { return _x; }
}
public float Top
{
get { return _y; }
}
public float Right
{
get { return _x+_width; }
}
public float Bottom
{
get { return _y + _height; }
}
public Vector TopLeft
{
get { return new Vector(Left, Top); }
}
public Vector TopRight
{
get { return new Vector(Right, Top); }
}
public Vector BottomLeft
{
get { return new Vector(Left, Bottom); }
}
public Vector BottomRight
{
get { return new Vector(Right, Bottom); }
}
public Vector LeftCenter
{
get { return new Vector(Left, (Top + Bottom) / 2); }
}
public Vector TopCenter
{
get { return new Vector((Left + Right) / 2, Top); }
}
public Vector RightCenter
{
get { return new Vector(Right, (Top + Bottom) / 2); }
}
public Vector BottomCenter
{
get { return new Vector((Left + Right) / 2, Bottom); }
}
public Vector Location
{
get { return TopLeft; }
}
public SizeV Size
{
get { return new SizeV(Width, Height); }
}
public Vector CalcCenter()
{
return new Vector(Left + Width / 2, Top + Height / 2);
}
//op implicit
public static implicit operator RectangleF(RectangleV rect)
{
return new RectangleF(rect.X, rect.Y, rect.Width, rect.Height);
}
public static implicit operator RectangleV(RectangleF rect)
{
return new RectangleV(rect.X, rect.Y, rect.Width, rect.Height);
}
public override bool Equals(object obj)
{
if (obj is RectangleV)
{
RectangleV rect = (RectangleV)obj;
return
this.X == rect.X &&
this.Y == rect.Y &&
this.Width == rect.Width &&
this.Height == rect.Height;
}
return base.Equals(obj);
}
public static bool operator ==(RectangleV a, RectangleV b)
{
return a.Equals(b);
}
public static bool operator !=(RectangleV a, RectangleV b)
{
return !(a == b);
}
public override int GetHashCode()
{
return
X.GetHashCode() ^
Y.GetHashCode() ^
Width.GetHashCode() ^
Height.GetHashCode();
}
public override string ToString()
{
return string.Format("{{X={0}, Y={1}, Width={2}, Height={3}}}", X, Y, Width, Height);
}
//+SizeV
//-SizeV
public RectangleV Union(RectangleV rect)
{
return RectangleV.UnionAll(this, rect);
}
public static RectangleV UnionAll(params RectangleV[] rects)
{
if (rects==null || rects.Length<1) { return new RectangleV();}
float left=rects[0].Left;
float top=rects[0].Top;
float right=rects[0].Right;
float bottom=rects[0].Bottom;
foreach (RectangleV rect in rects)
{
left = Math.Min(left, rect.Left);
top = Math.Min(top, rect.Top);
right = Math.Max(right, rect.Right);
bottom = Math.Max(bottom, rect.Bottom);
}
return new RectangleV(left, top, right - left, bottom - top);
}
public RectangleV Intersect(RectangleV rect)
{
return IntersectAll(this, rect);
}
private RectangleV IntersectAll(params RectangleV[] rects)
{
if (rects == null || rects.Length < 1) { return new RectangleV(); }
float left = rects[0].Left;
float top = rects[0].Top;
float right = rects[0].Right;
float bottom = rects[0].Bottom;
foreach (RectangleV rect in rects)
{
left = Math.Max(left, rect.Left);
top = Math.Max(top, rect.Top);
right = Math.Min(right, rect.Right);
bottom = Math.Min(bottom, rect.Bottom);
}
return new RectangleV(left, top, right - left, bottom - top);
}
public RectangleV Inflate(SizeV size)
{
return RectangleV.FromLTRB(
Left - size.Width,
Top - size.Height,
Right + size.Width,
Bottom + size.Height);
}
public RectangleV Inflate(float x, float y)
{
return Inflate(new SizeV(x, y));
}
public RectangleV Offset(Vector v)
{
return new RectangleV(TopLeft + v, Size);
}
public RectangleV Offset(float x, float y)
{
return Offset(new Vector(x, y));
}
public bool IntersectsWith(RectangleV rect)
{
return IntersectsWith(rect, true);
}
public bool IntersectsWith(RectangleV rect, bool inclusive)
{
if (inclusive)
{
if (Left <= rect.Right &&
Right >= rect.Left &&
Top <= rect.Bottom &&
Bottom >= rect.Top)
{
return true;
}
}
else
{
if (Left < rect.Right &&
Right > rect.Left &&
Top < rect.Bottom &&
Bottom > rect.Top)
{
return true;
}
}
return false;
}
public bool Contains(Vector v)
{
if (Left <= v.X &&
Right >= v.X &&
Top <= v.Y &&
Bottom >= v.Y)
{
return true;
}
return false;
}
public bool IsEmpty
{
get { return (Width == 0 || Height == 0); }
}
//truncate
//round
//floor
//ceiling
}
}