mcs/class/System.Design/System.ComponentModel.Design/MultilineStringEditor.cs

   1 //
   2 // System.ComponentModel.Design.MultilineStringEditor.cs
   3 //
   4 // Author:
   5 //   Andreas Nahr (ClassDevelopment@A-SoftTech.com)
   6 //
   7 // (C) 2007 Andreas Nahr
   8 //
   9
  10 //
  11 // Permission is hereby granted, free of charge, to any person obtaining
  12 // a copy of this software and associated documentation files (the
  13 // "Software"), to deal in the Software without restriction, including
  14 // without limitation the rights to use, copy, modify, merge, publish,
  15 // distribute, sublicense, and/or sell copies of the Software, and to
  16 // permit persons to whom the Software is furnished to do so, subject to
  17 // the following conditions:
  18 //
  19 // The above copyright notice and this permission notice shall be
  20 // included in all copies or substantial portions of the Software.
  21 //
  22 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  23 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  24 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  25 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  26 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  27 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  28 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  29 //
  30
  31 #if NET_2_0
  32 using System;
  33 using System.ComponentModel;
  34 using System.Drawing.Design;
  35 using System.Windows.Forms;
  36 using System.Windows.Forms.Design;
  37
  38 namespace System.ComponentModel.Design
  39 {
  40         public sealed class MultilineStringEditor : UITypeEditor
  41         {
  42                 private class EditorControl : TextBox
  43                 {
  44                         public EditorControl ()
  45                         {
  46                                 Multiline = true;
  47                                 AcceptsReturn = true;
  48                                 Height = 135;
  49                                 Width = 280;
  50                                 ScrollBars = ScrollBars.Both;
  51                                 WordWrap = false;
  52                                 BorderStyle = BorderStyle.FixedSingle;
  53                         }
  54                 }
  55
  56                 private IWindowsFormsEditorService editorService;
  57                 private EditorControl control = new EditorControl ();
  58
  59                 public MultilineStringEditor ()
  60                 {
  61                 }
  62
  63                 public override object EditValue (ITypeDescriptorContext context, IServiceProvider provider, object value)
  64                 {
  65                         if (context != null && provider != null)
  66                         {
  67                                 editorService = (IWindowsFormsEditorService)provider.GetService (typeof (IWindowsFormsEditorService));
  68                                 if (editorService != null)
  69                                 {
  70                                         if (value == null)
  71                                                 value = String.Empty;
  72                                         else if (!(value is string))
  73                                                 return value;
  74
  75                                         control.Text = (string)value;
  76                                         editorService.DropDownControl (control);
  77                                         return control.Text;
  78                                 }
  79                         }
  80                         return base.EditValue (context, provider, value);
  81                 }
  82
  83                 public override UITypeEditorEditStyle GetEditStyle (ITypeDescriptorContext context)
  84                 {
  85                         return UITypeEditorEditStyle.DropDown;
  86                 }
  87
  88                 public override bool GetPaintValueSupported (ITypeDescriptorContext context)
  89                 {
  90                         return false;
  91                 }
  92         }
  93 }
  94 #endif