mcs/class/System.Windows.Forms/System.Windows.Forms/GridColumnStylesCollection.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
   4 // without limitation the rights to use, copy, modify, merge, publish,
   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 Novell, Inc. (http://www.novell.com)
  21 //
  22 // Author:
  23 //      Jordi Mas i Hernandez <jordi@ximian.com>
  24 //
  25
  26 using System;
  27 using System.Collections;
  28 using System.ComponentModel;
  29
  30 namespace System.Windows.Forms
  31 {
  32         [Editor("System.Windows.Forms.Design.DataGridColumnCollectionEditor, " + Consts.AssemblySystem_Design, typeof(System.Drawing.Design.UITypeEditor))]
  33         [ListBindable(false)]
  34         public class GridColumnStylesCollection : BaseCollection, IList
  35         {
  36                 private ArrayList items;
  37                 private DataGridTableStyle owner;
  38                 private bool fire_event;
  39
  40                 internal GridColumnStylesCollection (DataGridTableStyle tablestyle)
  41                 {
  42                         items = new ArrayList ();
  43                         owner = tablestyle;
  44                         fire_event = true;
  45                 }
  46
  47                 #region Public Instance Properties
  48                 public DataGridColumnStyle this [string columnName] {
  49                         get {
  50                                 int idx = FromColumnNameToIndex (columnName);
  51                                 return idx == -1 ? null : this [idx];
  52                         }
  53                 }
  54
  55                 public DataGridColumnStyle this [int index] {
  56                         get { return (DataGridColumnStyle) items[index]; }
  57                 }
  58
  59
  60                 public DataGridColumnStyle this [PropertyDescriptor propertyDesciptor] {
  61                         get {
  62                                 for (int i = 0; i < items.Count; i++) {
  63                                         DataGridColumnStyle column = (DataGridColumnStyle) items[i];
  64                                         if (column.PropertyDescriptor.Equals (propertyDesciptor))
  65                                                 return column;
  66                                 }
  67
  68                                 return null;
  69                         }
  70                 }
  71
  72                 protected override ArrayList List {
  73                         get { return items; }
  74                 }
  75
  76                 int ICollection.Count {
  77                         get { return items.Count;}
  78                 }
  79
  80                 bool ICollection.IsSynchronized {
  81                         get { return false; }
  82                 }
  83
  84                 object ICollection.SyncRoot {
  85                         get { return this; }
  86                 }
  87
  88                 bool IList.IsFixedSize {
  89                         get { return false; }
  90                 }
  91
  92                 bool IList.IsReadOnly {
  93                         get { return false; }
  94                 }
  95
  96                 object IList.this [int index] {
  97                         get { return items[index]; }
  98                         set { throw new NotSupportedException (); }
  99                 }
 100
 101                 #endregion Public Instance Properties
 102
 103                 #region Private Instance Properties
 104                 internal bool FireEvents {
 105                         get { return fire_event;}
 106                         set { fire_event = value;}
 107                 }
 108                 #endregion Private Instance Properties
 109
 110                 #region Public Instance Methods
 111                 public virtual int Add (DataGridColumnStyle column)
 112                 {
 113                         // TODO: MS allows duplicate columns. How they diferenciate between them?
 114                         if (FromColumnNameToIndex (column.MappingName) != -1) {
 115                                 throw new ArgumentException ("The ColumnStyles collection already has a column with this mapping name");
 116                         }
 117
 118                         column.TableStyle = owner;
 119                         column.SetDataGridInternal (owner.DataGrid);
 120                         ConnectColumnEvents (column);
 121                         int cnt = items.Add (column);
 122                         OnCollectionChanged (new CollectionChangeEventArgs (CollectionChangeAction.Add, column));
 123                         return cnt;
 124                 }
 125
 126                 public void AddRange (DataGridColumnStyle[] columns)
 127                 {
 128                         foreach (DataGridColumnStyle mi in columns)
 129                                 Add (mi);
 130                 }
 131
 132                 public void Clear ()
 133                 {
 134                         items.Clear ();
 135                         OnCollectionChanged (new CollectionChangeEventArgs (CollectionChangeAction.Refresh , null));
 136                 }
 137
 138                 public bool Contains (DataGridColumnStyle column)
 139                 {
 140                         return (FromColumnNameToIndex (column.MappingName) != -1);
 141                 }
 142
 143                 public bool Contains (PropertyDescriptor propertyDescriptor )
 144                 {
 145                         return (this [propertyDescriptor] != null);
 146                 }
 147
 148                 public bool Contains (string name)
 149                 {
 150                         return (FromColumnNameToIndex (name) != -1);
 151                 }
 152
 153                 void ICollection.CopyTo (Array array, int index)
 154                 {
 155                         items.CopyTo (array, index);
 156                 }
 157
 158                 IEnumerator IEnumerable.GetEnumerator ()
 159                 {
 160                         return items.GetEnumerator ();
 161                 }
 162
 163                 int IList.Add (object value)
 164                 {
 165                         return Add ((DataGridColumnStyle)value);
 166                 }
 167
 168                 void IList.Clear ()
 169                 {
 170                         Clear ();
 171                 }
 172
 173                 bool IList.Contains (object value)
 174                 {
 175                         return Contains ((DataGridColumnStyle)value);
 176                 }
 177
 178                 int IList.IndexOf (object value)
 179                 {
 180                         return IndexOf ((DataGridColumnStyle)value);
 181                 }
 182
 183                 void IList.Insert (int index, object value)
 184                 {
 185                         throw new NotSupportedException ();
 186                 }
 187
 188                 void IList.Remove (object value)
 189                 {
 190                         Remove ((DataGridColumnStyle)value);
 191                 }
 192
 193                 void IList.RemoveAt (int index)
 194                 {
 195                         RemoveAt (index);
 196                 }
 197
 198                 public int IndexOf (DataGridColumnStyle element)
 199                 {
 200                         return items.IndexOf (element);
 201                 }
 202
 203                 protected void OnCollectionChanged (CollectionChangeEventArgs e)
 204                 {
 205                         if (fire_event && CollectionChanged != null)
 206                                 CollectionChanged (this, e);
 207                 }
 208
 209                 public void Remove (DataGridColumnStyle column)
 210                 {
 211                         items.Remove (column);
 212                         DisconnectColumnEvents (column);
 213                         OnCollectionChanged (new CollectionChangeEventArgs (CollectionChangeAction.Remove, column));
 214                 }
 215
 216                 public void RemoveAt (int index)
 217                 {
 218                         DataGridColumnStyle item = (DataGridColumnStyle)items[index];
 219                         items.RemoveAt (index);
 220                         DisconnectColumnEvents (item);
 221                         OnCollectionChanged (new CollectionChangeEventArgs (CollectionChangeAction.Remove, item));
 222                 }
 223
 224                 public void ResetPropertyDescriptors ()
 225                 {
 226                         for (int i = 0; i < items.Count; i++) {
 227                                 DataGridColumnStyle column = (DataGridColumnStyle) items[i];
 228                                 if (column.PropertyDescriptor != null) {
 229                                         column.PropertyDescriptor = null;
 230                                 }
 231                         }
 232                 }
 233
 234                 #endregion Public Instance Methods
 235
 236                 #region Events
 237                 public event CollectionChangeEventHandler CollectionChanged;
 238                 #endregion Events
 239
 240                 #region Private Instance Methods
 241                 void ConnectColumnEvents (DataGridColumnStyle col)
 242                 {
 243                         col.AlignmentChanged += new EventHandler (ColumnAlignmentChangedEvent);
 244                         col.FontChanged += new EventHandler (ColumnFontChangedEvent);
 245                         col.HeaderTextChanged += new EventHandler (ColumnHeaderTextChanged);
 246                         col.MappingNameChanged += new EventHandler (ColumnMappingNameChangedEvent);
 247                         col.NullTextChanged += new EventHandler (ColumnNullTextChangedEvent);
 248                         col.PropertyDescriptorChanged += new EventHandler (ColumnPropertyDescriptorChanged);
 249                         col.ReadOnlyChanged += new EventHandler (ColumnReadOnlyChangedEvent);
 250                         col.WidthChanged += new EventHandler (ColumnWidthChangedEvent);
 251                 }
 252
 253                 void DisconnectColumnEvents (DataGridColumnStyle col)
 254                 {
 255                         col.AlignmentChanged -= new EventHandler (ColumnAlignmentChangedEvent);
 256                         col.FontChanged -= new EventHandler (ColumnFontChangedEvent);
 257                         col.HeaderTextChanged -= new EventHandler (ColumnHeaderTextChanged);
 258                         col.MappingNameChanged -= new EventHandler (ColumnMappingNameChangedEvent);
 259                         col.NullTextChanged -= new EventHandler (ColumnNullTextChangedEvent);
 260                         col.PropertyDescriptorChanged -= new EventHandler (ColumnPropertyDescriptorChanged);
 261                         col.ReadOnlyChanged -= new EventHandler (ColumnReadOnlyChangedEvent);
 262                         col.WidthChanged -= new EventHandler (ColumnWidthChangedEvent);
 263                 }
 264
 265                 void ColumnAlignmentChangedEvent (object sender, EventArgs e)
 266                 {
 267                         // XXX should this do a CollectionChangedEvent (Refresh, sender)?
 268                 }
 269
 270                 void ColumnFontChangedEvent (object sender, EventArgs e)
 271                 {
 272                         // XXX should this do a CollectionChangedEvent (Refresh, sender)?
 273                 }
 274
 275                 void ColumnHeaderTextChanged (object sender, EventArgs e)
 276                 {
 277                         // XXX should this do a CollectionChangedEvent (Refresh, sender)?
 278                 }
 279
 280                 void ColumnMappingNameChangedEvent (object sender, EventArgs e)
 281                 {
 282                         // XXX should this do a CollectionChangedEvent (Refresh, sender)?
 283                 }
 284
 285                 void ColumnNullTextChangedEvent (object sender, EventArgs e)
 286                 {
 287                         // XXX should this do a CollectionChangedEvent (Refresh, sender)?
 288                 }
 289
 290                 void ColumnPropertyDescriptorChanged (object sender, EventArgs e)
 291                 {
 292                         // XXX should this do a CollectionChangedEvent (Refresh, sender)?
 293                         OnCollectionChanged (new CollectionChangeEventArgs (CollectionChangeAction.Refresh, sender));
 294                 }
 295
 296                 void ColumnReadOnlyChangedEvent (object sender, EventArgs e)
 297                 {
 298                         // XXX should this do a CollectionChangedEvent (Refresh, sender)?
 299                 }
 300
 301                 void ColumnWidthChangedEvent (object sender, EventArgs e)
 302                 {
 303                         // XXX should this do a CollectionChangedEvent (Refresh, sender)?
 304                 }
 305
 306                 private int FromColumnNameToIndex (string columnName)
 307                 {
 308                         for (int i = 0; i < items.Count; i++) {
 309                                 DataGridColumnStyle column = (DataGridColumnStyle) items[i];
 310
 311                                 if (column.MappingName == null || column.MappingName == string.Empty)
 312                                         continue;
 313
 314                                 if (String.Compare (column.MappingName, columnName, true) == 0) {
 315                                         return i;
 316                                 }
 317                         }
 318
 319                         return -1;
 320                 }
 321
 322                 #endregion Private Instance Methods
 323         }
 324 }