mcs/class/WindowsBase/System.Windows/Int32Rect.cs

   1 //
   2 // DependencyPropertyChangedEventArgs.cs
   3 //
   4 // Author:
   5 //   Chris Toshok (toshok@ximian.com)
   6 //
   7 // (C) 2007 Novell, Inc.
   8 //
   9 // Permission is hereby granted, free of charge, to any person obtaining
  10 // a copy of this software and associated documentation files (the
  11 // "Software"), to deal in the Software without restriction, including
  12 // without limitation the rights to use, copy, modify, merge, publish,
  13 // distribute, sublicense, and/or sell copies of the Software, and to
  14 // permit persons to whom the Software is furnished to do so, subject to
  15 // the following conditions:
  16 //
  17 // The above copyright notice and this permission notice shall be
  18 // included in all copies or substantial portions of the Software.
  19 //
  20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  21 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  22 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  23 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  24 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  25 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  26 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  27 //
  28
  29 using System.ComponentModel;
  30 using System.Globalization;
  31 using System.Windows.Converters;
  32 using System.Windows.Markup;
  33
  34 namespace System.Windows {
  35
  36         [Serializable]
  37         [TypeConverter (typeof(Int32RectConverter))]
  38         [ValueSerializer (typeof(Int32RectValueSerializer))]
  39         public struct Int32Rect : IFormattable
  40         {
  41                 int _x, _y, _width, _height;
  42
  43                 public Int32Rect (int x, int y, int width, int height)
  44                 {
  45                         this._x = x;
  46                         this._y = y;
  47                         this._width = width;
  48                         this._height = height;
  49                 }
  50
  51                 public static bool operator != (Int32Rect int32Rect1, Int32Rect int32Rect2)
  52                 {
  53                         return !int32Rect1.Equals(int32Rect2);
  54                 }
  55
  56                 public static bool operator == (Int32Rect int32Rect1, Int32Rect int32Rect2)
  57                 {
  58                         return int32Rect1.Equals(int32Rect2);
  59                 }
  60
  61                 public static Int32Rect Empty {
  62                         get { return new Int32Rect (0, 0, 0, 0); }
  63                 }
  64
  65                 public int Height {
  66                         get { return _height; }
  67                         set { _height = value; }
  68                 }
  69
  70                 public bool IsEmpty {
  71                         get { return _width == 0 && _height == 0; }
  72                 }
  73
  74                 public int Width {
  75                         get { return _width; }
  76                         set { _width = value; }
  77                 }
  78
  79                 public int X {
  80                         get { return _x; }
  81                         set { _x = value; }
  82                 }
  83
  84                 public int Y {
  85                         get { return _y; }
  86                         set { _y = value; }
  87                 }
  88
  89                 public bool Equals (Int32Rect value)
  90                 {
  91                         return (_x == value._x &&
  92                                 _y == value._y &&
  93                                 _width == value._width &&
  94                                 _height == value._height);
  95                 }
  96
  97                 public override bool Equals (object o)
  98                 {
  99                         if (!(o is Int32Rect))
 100                                 return false;
 101
 102                         return Equals ((Int32Rect)o);
 103                 }
 104
 105                 public static bool Equals (Int32Rect int32Rect1, Int32Rect int32Rect2)
 106                 {
 107                         return int32Rect1.Equals (int32Rect2);
 108                 }
 109
 110                 public override int GetHashCode ()
 111                 {
 112                         unchecked
 113                         {
 114                                 var hashCode = _x;
 115                                 hashCode = (hashCode * 397) ^ _y;
 116                                 hashCode = (hashCode * 397) ^ _width;
 117                                 hashCode = (hashCode * 397) ^ _height;
 118                                 return hashCode;
 119                         }
 120                 }
 121
 122                 public static Int32Rect Parse (string source)
 123                 {
 124                         if (source == null)
 125                                 throw new ArgumentNullException ("source");
 126                         Int32Rect value;
 127                         if (source.Trim () == "Empty")
 128                         {
 129                                 value = Empty;
 130                         }
 131                         else
 132                         {
 133                                 var tokenizer = new NumericListTokenizer (source, CultureInfo.InvariantCulture);
 134                                 int x;
 135                                 int y;
 136                                 int width;
 137                                 int height;
 138                                 if (int.TryParse (tokenizer.GetNextToken (), NumberStyles.Integer, CultureInfo.InvariantCulture, out x)
 139                                     && int.TryParse (tokenizer.GetNextToken (), NumberStyles.Integer, CultureInfo.InvariantCulture, out y)
 140                                     && int.TryParse (tokenizer.GetNextToken (), NumberStyles.Integer, CultureInfo.InvariantCulture, out width)
 141                                     && int.TryParse (tokenizer.GetNextToken (), NumberStyles.Integer, CultureInfo.InvariantCulture, out height))
 142                                 {
 143                                         if (!tokenizer.HasNoMoreTokens ())
 144                                         {
 145                                                 throw new InvalidOperationException ("Invalid Int32Rect format: " + source);
 146                                         }
 147                                         value = new Int32Rect (x, y, width, height);
 148                                 }
 149                                 else
 150                                 {
 151                                         throw new FormatException (string.Format ("Invalid Int32Rect format: {0}", source));
 152                                 }
 153                         }
 154                         return value;
 155                 }
 156
 157                 public override string ToString ()
 158                 {
 159                         return ToString (null);
 160                 }
 161
 162                 public string ToString (IFormatProvider provider)
 163                 {
 164                         return ToString (null, provider);
 165                 }
 166
 167                 string IFormattable.ToString (string format, IFormatProvider provider)
 168                 {
 169                         return ToString (provider);
 170                 }
 171
 172                 private string ToString (string format, IFormatProvider provider)
 173                 {
 174                         if (IsEmpty)
 175                                 return "Empty";
 176
 177                         if (provider == null)
 178                                 provider = CultureInfo.CurrentCulture;
 179
 180                         if (format == null)
 181                                 format = string.Empty;
 182
 183                         var separator = NumericListTokenizer.GetSeparator (provider);
 184
 185                         var rectFormat = string.Format (
 186                                 "{{0:{0}}}{1}{{1:{0}}}{1}{{2:{0}}}{1}{{3:{0}}}",
 187                                 format, separator);
 188                         return string.Format (provider, rectFormat,
 189                                 _x, _y, _width, _height);
 190                 }
 191         }
 192 }
 193