99 lines
3.3 KiB
C#
99 lines
3.3 KiB
C#
#region --- License ---
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/* Copyright (c) 2006, 2007 Stefanos Apostolopoulos
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* See license.txt for license info
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*/
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#endregion
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using System;
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using System.Collections.Generic;
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using System.Text;
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using System.Runtime.InteropServices;
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namespace OpenTK
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{
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/// <summary>
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/// Defines a 2d box (rectangle).
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/// </summary>
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[StructLayout(LayoutKind.Sequential)]
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public struct Box2
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{
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/// <summary>
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/// The left boundary of the structure.
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/// </summary>
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public float Left;
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/// <summary>
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/// The right boundary of the structure.
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/// </summary>
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public float Right;
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/// <summary>
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/// The top boundary of the structure.
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/// </summary>
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public float Top;
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/// <summary>
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/// The bottom boundary of the structure.
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/// </summary>
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public float Bottom;
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/// <summary>
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/// Constructs a new Box2 with the specified dimensions.
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/// </summary>
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/// <param name="topLeft">AnOpenTK.Vector2 describing the top-left corner of the Box2.</param>
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/// <param name="bottomRight">An OpenTK.Vector2 describing the bottom-right corner of the Box2.</param>
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public Box2(Vector2 topLeft, Vector2 bottomRight)
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{
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Left = topLeft.X;
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Top = topLeft.Y;
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Right = topLeft.X;
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Bottom = topLeft.Y;
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}
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/// <summary>
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/// Constructs a new Box2 with the specified dimensions.
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/// </summary>
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/// <param name="left">The position of the left boundary.</param>
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/// <param name="top">The position of the top boundary.</param>
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/// <param name="right">The position of the right boundary.</param>
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/// <param name="bottom">The position of the bottom boundary.</param>
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public Box2(float left, float top, float right, float bottom)
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{
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Left = left;
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Top = top;
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Right = right;
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Bottom = bottom;
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}
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/// <summary>
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/// Creates a new Box2 with the specified dimensions.
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/// </summary>
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/// <param name="top">The position of the top boundary.</param>
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/// <param name="left">The position of the left boundary.</param>
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/// <param name="right">The position of the right boundary.</param>
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/// <param name="bottom">The position of the bottom boundary.</param>
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/// <returns>A new OpenTK.Box2 with the specfied dimensions.</returns>
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public static Box2 FromTLRB(float top, float left, float right, float bottom)
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{
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return new Box2(left, top, right, bottom);
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}
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/// <summary>
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/// Gets a float describing the width of the Box2 structure.
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/// </summary>
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public float Width { get { return (float)System.Math.Abs(Right - Left); } }
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/// <summary>
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/// Gets a float describing the height of the Box2 structure.
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/// </summary>
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public float Height { get { return (float)System.Math.Abs(Bottom - Top); } }
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/// <summary>
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/// Returns a <see cref="System.String"/> describing the current instance.
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/// </summary>
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/// <returns></returns>
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public override string ToString()
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{
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return String.Format("({0},{1})-({2},{3})", Left, Top, Right, Bottom);
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}
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}
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}
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