mcs/class/Managed.Windows.Forms/System.Windows.Forms/GridItemCollection.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) 2004-2005 Novell, Inc.
  21 //
  22 // Authors:
  23 //      Jonathan Chambers (jonathan.chambers@ansys.com)
  24 //
  25
  26 // COMPLETE
  27
  28 using System;
  29 using System.Collections;
  30 using System.Windows.Forms.PropertyGridInternal;
  31
  32 namespace System.Windows.Forms
  33 {
  34         public class GridItemCollection : IEnumerable, ICollection
  35         {
  36                 #region Local Variables
  37                 private System.Collections.SortedList list;
  38                 #endregion      // Local Variables
  39
  40                 #region Public Static Fields
  41                 public static GridItemCollection Empty = new GridItemCollection();
  42                 #endregion      // Public Static Fields
  43
  44                 #region Constructors
  45                 internal GridItemCollection()
  46                 {
  47                         list = new SortedList();
  48                 }
  49                 #endregion      // Constructors
  50
  51                 #region Internal Properties and Methods
  52                 internal void Add (GridItem grid_item)
  53                 {
  54                         string key = grid_item.Label;
  55                         while (list.ContainsKey (key))
  56                                 key += "_";
  57                         list.Add (key, grid_item);
  58                 }
  59
  60                 internal void AddRange (GridItemCollection items)
  61                 {
  62                         foreach (GridItem item in items)
  63                                 Add (item);
  64                 }
  65
  66                 internal int IndexOf (GridItem grid_item)
  67                 {
  68                         return list.IndexOfValue (grid_item);
  69                 }
  70                 #endregion      // Internal Properties and Methods
  71
  72                 #region Public Instance Properties
  73                 public int Count {
  74                         get {
  75                                 return list.Count;
  76                         }
  77                 }
  78
  79                 public GridItem this [int index] {
  80                         get {
  81                                 if (index>=list.Count) {
  82                                         throw new ArgumentOutOfRangeException("index");
  83                                 }
  84                                 return (GridItem)list.GetByIndex(index);
  85                         }
  86                 }
  87
  88                 public GridItem this [string label] {
  89                         get {
  90                                 return (GridItem)list[label];
  91                         }
  92                 }
  93                 #endregion      // Public Instance Properties
  94
  95                 #region IEnumerable Members
  96                 public IEnumerator GetEnumerator()
  97                 {
  98                         return new GridItemEnumerator (this);
  99                 }
 100                 #endregion
 101
 102                 #region Enumerator Class
 103                 internal class GridItemEnumerator : IEnumerator{
 104                         int nIndex;
 105                         GridItemCollection collection;
 106
 107                         public GridItemEnumerator(GridItemCollection coll)
 108                         {
 109                                 collection = coll;
 110                                 nIndex = -1;
 111                         }
 112
 113                         public bool MoveNext ()
 114                         {
 115                                 nIndex++;
 116                                 return (nIndex < collection.Count);
 117                         }
 118
 119                         public void Reset ()
 120                         {
 121                                 nIndex = -1;
 122                         }
 123
 124                         object System.Collections.IEnumerator.Current {
 125                                 get {
 126                                         return collection [nIndex];
 127                                 }
 128                         }
 129                 }
 130                 #endregion
 131
 132                 #region ICollection Members
 133
 134                 bool ICollection.IsSynchronized {
 135                         get {
 136                                 return list.IsSynchronized;
 137                         }
 138                 }
 139
 140                 void ICollection.CopyTo(Array dest, int index)
 141                 {
 142                         list.CopyTo (dest, index);
 143                 }
 144
 145                 object ICollection.SyncRoot {
 146                         get {
 147                                 return list.SyncRoot;
 148                         }
 149                 }
 150
 151                 #endregion
 152
 153                 internal void Clear ()
 154                 {
 155                         list.Clear ();
 156                 }
 157         }
 158 }