mcs/class/System.Drawing/System.Drawing.Design/UITypeEditor.cs

   1 //
   2 // System.Drawing.Design.UITypeEditor.cs
   3 //
   4 // Authors:
   5 //  Alan Tam Siu Lung <Tam@SiuLung.com>
   6 //  Andreas Nahr (ClassDevelopment@A-SoftTech.com)
   7 //
   8 // (C) 2003 Alan Tam Siu Lung <Tam@SiuLung.com>
   9 // (C) 2003 Andreas Nahr
  10 //
  11
  12 //
  13 // Copyright (C) 2004 Novell, Inc (http://www.novell.com)
  14 //
  15 // Permission is hereby granted, free of charge, to any person obtaining
  16 // a copy of this software and associated documentation files (the
  17 // "Software"), to deal in the Software without restriction, including
  18 // without limitation the rights to use, copy, modify, merge, publish,
  19 // distribute, sublicense, and/or sell copies of the Software, and to
  20 // permit persons to whom the Software is furnished to do so, subject to
  21 // the following conditions:
  22 //
  23 // The above copyright notice and this permission notice shall be
  24 // included in all copies or substantial portions of the Software.
  25 //
  26 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  27 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  28 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  29 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  30 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  31 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  32 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  33 //
  34 using System;
  35 using System.ComponentModel;
  36 namespace System.Drawing.Design
  37 {
  38         public class UITypeEditor
  39         {
  40
  41                 public UITypeEditor()
  42                 {
  43                 }
  44
  45                 public virtual object EditValue (ITypeDescriptorContext context,
  46                         IServiceProvider provider, object value)
  47                 {
  48                         // We already stated that we can't edit ;)
  49                         return value;
  50                 }
  51                 public object EditValue(IServiceProvider provider, object value)
  52                 {
  53                         return EditValue (null, provider, value);
  54                 }
  55                 public virtual UITypeEditorEditStyle GetEditStyle (ITypeDescriptorContext context)
  56                 {
  57                         return UITypeEditorEditStyle.None;
  58                 }
  59                 public UITypeEditorEditStyle GetEditStyle ()
  60                 {
  61                         return GetEditStyle (null);
  62                 }
  63                 public bool GetPaintValueSupported ()
  64                 {
  65                         return GetPaintValueSupported (null);
  66                 }
  67                 public virtual bool GetPaintValueSupported (ITypeDescriptorContext context)
  68                 {
  69                         return false;
  70                 }
  71                 public void PaintValue (object value, Graphics canvas, Rectangle rectangle)
  72                 {
  73                         PaintValue (new PaintValueEventArgs (null, value, canvas, rectangle));
  74                 }
  75                 public virtual void PaintValue (PaintValueEventArgs e)
  76                 {
  77                         // LAMESPEC: Did not find info in the docs if this should do something here.
  78                         // Usually you would expect, that this class gets inherited and this overridden,
  79                         // but on the other hand the class is not abstract. Could never observe it did paint anything
  80                         return;
  81                 }
  82         }
  83 }