class/Mono.Cairo/Mono.Cairo/FontExtents.cs

   1 //
   2 // Mono.Cairo.FontExtents.cs
   3 //
   4 // Authors: Duncan Mak (duncan@ximian.com)
   5 //          Hisham Mardam Bey (hisham.mardambey@gmail.com)
   6 //
   7 // (C) Ximian, Inc. 2003
   8 //
   9 // This is a simplistic binding of the Cairo API to C#. All functions
  10 // in cairo.h are transcribed into their C# equivelants
  11 //
  12 // Copyright (C) 2004 Novell, Inc (http://www.novell.com)
  13 //
  14 // Permission is hereby granted, free of charge, to any person obtaining
  15 // a copy of this software and associated documentation files (the
  16 // "Software"), to deal in the Software without restriction, including
  17 // without limitation the rights to use, copy, modify, merge, publish,
  18 // distribute, sublicense, and/or sell copies of the Software, and to
  19 // permit persons to whom the Software is furnished to do so, subject to
  20 // the following conditions:
  21 //
  22 // The above copyright notice and this permission notice shall be
  23 // included in all copies or substantial portions of the Software.
  24 //
  25 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  26 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  27 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  28 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  29 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  30 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  31 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  32 //
  33
  34 using System;
  35 using System.Runtime.InteropServices;
  36
  37 namespace Cairo
  38 {
  39         [StructLayout (LayoutKind.Sequential)]
  40         public struct FontExtents
  41         {
  42                 double ascent;
  43                 double descent;
  44                 double height;
  45                 double maxXAdvance;
  46                 double maxYAdvance;
  47
  48                 public double Ascent {
  49                         get { return ascent; }
  50                         set { ascent = value; }
  51                 }
  52
  53                 public double Descent {
  54                         get { return descent; }
  55                         set { descent = value; }
  56                 }
  57
  58                 public double Height {
  59                         get { return height; }
  60                         set { height = value; }
  61                 }
  62
  63                 public double MaxXAdvance {
  64                         get { return maxXAdvance; }
  65                         set { maxXAdvance = value; }
  66                 }
  67
  68                 public double MaxYAdvance {
  69                         get { return maxYAdvance; }
  70                         set { maxYAdvance = value; }
  71                 }
  72
  73                 public FontExtents (double ascent, double descent, double height, double maxXAdvance, double maxYAdvance)
  74                 {
  75                         this.ascent = ascent;
  76                         this.descent = descent;
  77                         this.height = height;
  78                         this.maxXAdvance = maxXAdvance;
  79                         this.maxYAdvance = maxYAdvance;
  80                 }
  81
  82                 public override bool Equals (object obj)
  83                 {
  84                         if (obj is FontExtents)
  85                                 return this == (FontExtents) obj;
  86                         return false;
  87                 }
  88
  89                 public override int GetHashCode ()
  90                 {
  91                         return (int) Ascent ^ (int) Descent ^ (int) Height ^ (int) MaxXAdvance ^ (int) MaxYAdvance;
  92                 }
  93
  94                 public static bool operator == (FontExtents extents, FontExtents other)
  95                 {
  96                         return extents.Ascent == other.Ascent && extents.Descent == other.Descent && extents.Height == other.Height && extents.MaxXAdvance == other.MaxXAdvance && extents.MaxYAdvance == other.MaxYAdvance;
  97                 }
  98
  99                 public static bool operator != (FontExtents extents, FontExtents other)
 100                 {
 101                         return !(extents == other);
 102                 }
 103         }
 104 }