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 using System;
  12 using System.ComponentModel;
  13 namespace System.Drawing.Design
  14 {
  15         public class UITypeEditor
  16         {
  17
  18                 public UITypeEditor()
  19                 {
  20                 }
  21
  22                 public virtual object EditValue (ITypeDescriptorContext context,
  23                         IServiceProvider provider, object value)
  24                 {
  25                         // We already stated that we can't edit ;)
  26                         return value;
  27                 }
  28                 public object EditValue(IServiceProvider provider, object value)
  29                 {
  30                         return EditValue (null, provider, value);
  31                 }
  32                 public virtual UITypeEditorEditStyle GetEditStyle (ITypeDescriptorContext context)
  33                 {
  34                         return UITypeEditorEditStyle.None;
  35                 }
  36                 public UITypeEditorEditStyle GetEditStyle ()
  37                 {
  38                         return GetEditStyle (null);
  39                 }
  40                 public bool GetPaintValueSupported ()
  41                 {
  42                         return GetPaintValueSupported (null);
  43                 }
  44                 public virtual bool GetPaintValueSupported (ITypeDescriptorContext context)
  45                 {
  46                         return false;
  47                 }
  48                 public void PaintValue (object value, Graphics canvas, Rectangle rectangle)
  49                 {
  50                         PaintValue (new PaintValueEventArgs (null, value, canvas, rectangle));
  51                 }
  52                 public virtual void PaintValue (PaintValueEventArgs e)
  53                 {
  54                         // LAMESPEC: Did not find info in the docs if this should do something here.
  55                         // Usually you would expect, that this class gets inherited and this overridden,
  56                         // but on the other hand the class is not abstract. Could never observe it did paint anything
  57                         return;
  58                 }
  59         }
  60 }