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Diffstat (limited to 'mcs/class/System.Drawing/System.Drawing/PointF.cs')
| -rw-r--r-- | mcs/class/System.Drawing/System.Drawing/PointF.cs | 257 |
1 files changed, 257 insertions, 0 deletions
diff --git a/mcs/class/System.Drawing/System.Drawing/PointF.cs b/mcs/class/System.Drawing/System.Drawing/PointF.cs new file mode 100644 index 00000000000..7019947d9a1 --- /dev/null +++ b/mcs/class/System.Drawing/System.Drawing/PointF.cs @@ -0,0 +1,257 @@ +// +// System.Drawing.PointF.cs +// +// Author: +// Mike Kestner (mkestner@speakeasy.net) +// +// Copyright (C) 2001 Mike Kestner +// Copyright (C) 2004 Novell, Inc. http://www.novell.com +// + +// +// Copyright (C) 2004 Novell, Inc (http://www.novell.com) +// +// Permission is hereby granted, free of charge, to any person obtaining +// a copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to +// permit persons to whom the Software is furnished to do so, subject to +// the following conditions: +// +// The above copyright notice and this permission notice shall be +// included in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. +// + +using System; +using System.Globalization; +using System.Runtime.InteropServices; +using System.ComponentModel; + +namespace System.Drawing +{ + [Serializable] + [ComVisible (true)] + public struct PointF + { + // Private x and y coordinate fields. + private float x, y; + + // ----------------------- + // Public Shared Members + // ----------------------- + + /// <summary> + /// Empty Shared Field + /// </summary> + /// + /// <remarks> + /// An uninitialized PointF Structure. + /// </remarks> + + public static readonly PointF Empty; + + /// <summary> + /// Addition Operator + /// </summary> + /// + /// <remarks> + /// Translates a PointF using the Width and Height + /// properties of the given Size. + /// </remarks> + + public static PointF operator + (PointF pt, Size sz) + { + return new PointF (pt.X + sz.Width, pt.Y + sz.Height); + } + + /// <summary> + /// Equality Operator + /// </summary> + /// + /// <remarks> + /// Compares two PointF objects. The return value is + /// based on the equivalence of the X and Y properties + /// of the two points. + /// </remarks> + + public static bool operator == (PointF pt_a, PointF pt_b) + { + return ((pt_a.X == pt_b.X) && (pt_a.Y == pt_b.Y)); + } + + /// <summary> + /// Inequality Operator + /// </summary> + /// + /// <remarks> + /// Compares two PointF objects. The return value is + /// based on the equivalence of the X and Y properties + /// of the two points. + /// </remarks> + + public static bool operator != (PointF pt_a, PointF pt_b) + { + return ((pt_a.X != pt_b.X) || (pt_a.Y != pt_b.Y)); + } + + /// <summary> + /// Subtraction Operator + /// </summary> + /// + /// <remarks> + /// Translates a PointF using the negation of the Width + /// and Height properties of the given Size. + /// </remarks> + + public static PointF operator - (PointF pt, Size sz) + { + return new PointF (pt.X - sz.Width, pt.Y - sz.Height); + } + + // ----------------------- + // Public Constructor + // ----------------------- + + /// <summary> + /// PointF Constructor + /// </summary> + /// + /// <remarks> + /// Creates a PointF from a specified x,y coordinate pair. + /// </remarks> + + public PointF (float x, float y) + { + this.x = x; + this.y = y; + } + + // ----------------------- + // Public Instance Members + // ----------------------- + + /// <summary> + /// IsEmpty Property + /// </summary> + /// + /// <remarks> + /// Indicates if both X and Y are zero. + /// </remarks> + + [Browsable (false)] + public bool IsEmpty { + get { + return ((x == 0.0) && (y == 0.0)); + } + } + + /// <summary> + /// X Property + /// </summary> + /// + /// <remarks> + /// The X coordinate of the PointF. + /// </remarks> + + public float X { + get { + return x; + } + set { + x = value; + } + } + + /// <summary> + /// Y Property + /// </summary> + /// + /// <remarks> + /// The Y coordinate of the PointF. + /// </remarks> + + public float Y { + get { + return y; + } + set { + y = value; + } + } + + /// <summary> + /// Equals Method + /// </summary> + /// + /// <remarks> + /// Checks equivalence of this PointF and another object. + /// </remarks> + + public override bool Equals (object o) + { + if (!(o is PointF)) + return false; + + return (this == (PointF) o); + } + + /// <summary> + /// GetHashCode Method + /// </summary> + /// + /// <remarks> + /// Calculates a hashing value. + /// </remarks> + + public override int GetHashCode () + { + return (int) x ^ (int) y; + } + + /// <summary> + /// ToString Method + /// </summary> + /// + /// <remarks> + /// Formats the PointF as a string in coordinate notation. + /// </remarks> + + public override string ToString () + { + return String.Format ("{{X={0}, Y={1}}}", x.ToString (CultureInfo.CurrentCulture), + y.ToString (CultureInfo.CurrentCulture)); + } + +#if NET_2_0 + public static PointF Add (PointF pt, Size sz) + { + return new PointF (pt.X + sz.Width, pt.Y + sz.Height); + } + + public static PointF Add (PointF pt, SizeF sz) + { + return new PointF (pt.X + sz.Width, pt.Y + sz.Height); + } + + public static PointF Subtract (PointF pt, Size sz) + { + return new PointF (pt.X - sz.Width, pt.Y - sz.Height); + } + + public static PointF Subtract (PointF pt, SizeF sz) + { + return new PointF (pt.X - sz.Width, pt.Y - sz.Height); + } +#endif + + } +} |