mcs/class/Managed.Windows.Forms/System.Windows.Forms/Padding.cs

   1 // Permission is hereby granted, free of charge, to any person obtaining
   2 // a copy of this software and associated documentation files (the
   3 // "Software"), to deal in the Software without restriction, including
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   5 // distribute, sublicense, and/or sell copies of the Software, and to
   6 // permit persons to whom the Software is furnished to do so, subject to
   7 // the following conditions:
   8 //
   9 // The above copyright notice and this permission notice shall be
  10 // included in all copies or substantial portions of the Software.
  11 //
  12 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  13 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  14 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  15 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  16 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  17 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  18 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  19 //
  20 // Copyright (c) 2005,2006 Novell, Inc. (http://www.novell.com)
  21 //
  22 // Author:
  23 //      Pedro Martínez Juliá <pedromj@gmail.com>
  24 //      Daniel Nauck    (dna(at)mono-project(dot)de)
  25 //
  26
  27 #if NET_2_0
  28
  29 using System;
  30 using System.ComponentModel;
  31 using System.Drawing;
  32
  33 namespace System.Windows.Forms {
  34
  35         [Serializable]
  36         [TypeConverter(typeof(PaddingConverter))]
  37         public struct Padding {
  38
  39                 //NOTE: "_var" field name is required by serialization.
  40                 private int _bottom;
  41                 private int _left;
  42                 private int _right;
  43                 private int _top;
  44                 private bool _all;
  45
  46                 public Padding (int all) {
  47                         _left = all;
  48                         _right = all;
  49                         _top = all;
  50                         _bottom = all;
  51                         _all = true;
  52                 }
  53
  54                 public Padding (int left, int top, int right, int bottom) {
  55                         _left = left;
  56                         _right = right;
  57                         _top = top;
  58                         _bottom = bottom;
  59                         _all = (_left == _top) && (_left == _right) && (_left == _bottom);
  60                 }
  61
  62                 public static readonly Padding Empty = new Padding(0);
  63
  64                 [RefreshProperties(RefreshProperties.All)]
  65                 public int All {
  66                         get {
  67                                 if(!_all)
  68                                         return -1;
  69                                 else
  70                                         return _top;
  71                         }
  72                         set {
  73                                 _all = true;
  74                                 _left = _top = _right = _bottom = value;
  75                         }
  76                 }
  77
  78                 [RefreshProperties(RefreshProperties.All)]
  79                 public int Bottom {
  80                         get { return _bottom; }
  81                         set {
  82                                 _bottom = value;
  83                                 _all = false;
  84                         }
  85                 }
  86
  87                 [Browsable(false)]
  88                 public int Horizontal {
  89                         get { return _left + _right; }
  90                 }
  91
  92                 [RefreshProperties(RefreshProperties.All)]
  93                 public int Left {
  94                         get { return _left; }
  95                         set {
  96                                 _left = value;
  97                                 _all = false;
  98                         }
  99                 }
 100
 101                 [RefreshProperties(RefreshProperties.All)]
 102                 public int Right {
 103                         get { return _right; }
 104                         set {
 105                                 _right = value;
 106                                 _all = false;
 107                         }
 108                 }
 109
 110                 [Browsable(false)]
 111                 public Size Size {
 112                         get { return new Size(Horizontal, Vertical); }
 113                 }
 114
 115                 [RefreshProperties(RefreshProperties.All)]
 116                 public int Top {
 117                         get { return _top; }
 118                         set {
 119                                 _top = value;
 120                                 _all = false;
 121                         }
 122                 }
 123
 124                 [Browsable(false)]
 125                 public int Vertical {
 126                         get { return _top + _bottom; }
 127                 }
 128
 129                 public static Padding Add (Padding p1, Padding p2) {
 130                         return p1 + p2;
 131                 }
 132
 133                 public override bool Equals (object other) {
 134                         if (other is Padding) {
 135                                 Padding other_aux = (Padding) other;
 136                                 return _left == other_aux.Left &&
 137                                         _top == other_aux.Top &&
 138                                         _right == other_aux.Right &&
 139                                         _bottom == other_aux.Bottom;
 140                         }
 141                         return false;
 142                 }
 143
 144                 public override int GetHashCode () {
 145                         return _top ^ _bottom ^ _left ^ _right;
 146                 }
 147
 148                 public static Padding operator+ (Padding p1, Padding p2) {
 149                         return new Padding(p1.Left + p2.Left, p1.Top + p2.Top, p1.Right + p2.Right, p1.Bottom + p2.Bottom);
 150                 }
 151
 152                 public static bool operator== (Padding p1, Padding p2) {
 153                         return p1.Equals(p2);
 154                 }
 155
 156                 public static bool operator!= (Padding p1, Padding p2) {
 157                         return !(p1.Equals(p2));
 158                 }
 159
 160                 public static Padding operator- (Padding p1, Padding p2) {
 161                         return new Padding(p1.Left - p2.Left, p1.Top - p2.Top, p1.Right - p2.Right, p1.Bottom - p2.Bottom);
 162                 }
 163
 164                 public static Padding Subtract (Padding p1, Padding p2) {
 165                         return p1 - p2;
 166                 }
 167
 168                 public override string ToString () {
 169                         return "{Left=" + Left + ",Top="+ Top + ",Right=" + Right + ",Bottom=" + Bottom + "}";
 170                 }
 171         }
 172 }
 173 #endif