class/System.Drawing/System.Drawing.Printing/Margins.cs

   1 //
   2 // System.Drawing.Margins.cs
   3 //
   4 // Authors:
   5 //   Dennis Hayes (dennish@Raytek.com)
   6 //   Andreas Nahr (ClassDevelopment@A-SoftTech.com)
   7 //   Sebastien Pouliot  <sebastien@ximian.com>
   8 //
   9 // (C) 2002 Ximian, Inc
  10 // Copyright (C) 2004, 2007 Novell, Inc (http://www.novell.com)
  11 //
  12 // Permission is hereby granted, free of charge, to any person obtaining
  13 // a copy of this software and associated documentation files (the
  14 // "Software"), to deal in the Software without restriction, including
  15 // without limitation the rights to use, copy, modify, merge, publish,
  16 // distribute, sublicense, and/or sell copies of the Software, and to
  17 // permit persons to whom the Software is furnished to do so, subject to
  18 // the following conditions:
  19 //
  20 // The above copyright notice and this permission notice shall be
  21 // included in all copies or substantial portions of the Software.
  22 //
  23 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  24 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  25 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  26 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  27 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  28 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  29 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  30 //
  31
  32 using System.ComponentModel;
  33
  34 namespace System.Drawing.Printing
  35 {
  36 #if NET_2_0
  37         [Serializable]
  38 #endif
  39         [TypeConverter (typeof (MarginsConverter))]
  40         public class Margins : ICloneable {
  41                 int left;
  42                 int right;
  43                 int top;
  44                 int bottom;
  45
  46                 public Margins ()
  47                 {
  48                         left = 100;
  49                         right = 100;
  50                         top = 100;
  51                         bottom = 100;
  52                 }
  53
  54                 public Margins (int left, int right, int top, int bottom)
  55                 {
  56                         Left = left;
  57                         Right = right;
  58                         Top = top;
  59                         Bottom = bottom;
  60                 }
  61
  62                 public int Left {
  63                         get {
  64                                 return left;
  65                         }
  66                         set {
  67                                 if (value < 0)
  68                                         InvalidMargin ("left");
  69                                 left = value;
  70                         }
  71                 }
  72
  73                 public int Right {
  74                         get {
  75                                 return right;
  76                         }
  77                         set {
  78                                 if (value < 0)
  79                                         InvalidMargin ("right");
  80                                 right = value;
  81                         }
  82                 }
  83
  84                 public int Top {
  85                         get {
  86                                 return top;
  87                         }
  88                         set {
  89                                 if (value < 0)
  90                                         InvalidMargin ("top");
  91                                 top = value;
  92                         }
  93                 }
  94
  95                 public int Bottom {
  96                         get {
  97                                 return bottom;
  98                         }
  99                         set {
 100                                 if (value < 0)
 101                                         InvalidMargin ("bottom");
 102                                 bottom = value;
 103                         }
 104                 }
 105
 106                 private void InvalidMargin (string property)
 107                 {
 108                         string msg = Locale.GetText ("All Margins must be greater than 0");
 109                         throw new System.ArgumentException (msg, property);
 110                 }
 111
 112                 public object Clone ()
 113                 {
 114                         return new Margins (left, right, top, bottom);
 115                 }
 116
 117                 public override bool Equals (object obj)
 118                 {
 119                         return Equals (obj as Margins);
 120                 }
 121
 122                 private bool Equals (Margins m)
 123                 {
 124                         // avoid recursion with == operator
 125                         if ((object)m == null)
 126                                 return false;
 127                         return ((m.Left == left) && (m.Right == right) && (m.Top == top) && (m.Bottom == bottom));
 128                 }
 129
 130                 public override int GetHashCode ()
 131                 {
 132                         return left | (right << 8) | (right >> 24) | (top << 16) | (top >> 16) | (bottom << 24) | (bottom >> 8);
 133                 }
 134
 135                 public override string ToString ()
 136                 {
 137                         string ret = "[Margins Left={0} Right={1} Top={2} Bottom={3}]";
 138                         return String.Format (ret, left, right, top, bottom);
 139                 }
 140
 141 #if NET_2_0
 142                 public static bool operator == (Margins m1, Margins m2)
 143                 {
 144                         // avoid recursion with == operator
 145                         if ((object)m1 == null)
 146                                 return ((object)m2 == null);
 147                         return m1.Equals (m2);
 148                 }
 149
 150                 public static bool operator != (Margins m1, Margins m2)
 151                 {
 152                         // avoid recursion with == operator
 153                         if ((object)m1 == null)
 154                                 return ((object)m2 != null);
 155                         return !m1.Equals (m2);
 156                 }
 157 #endif
 158         }
 159 }