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

   1 //
   2 // System.Drawing.Design.ColorEditor.cs
   3 //
   4 // Authors:
   5 //  Martin Willemoes Hansen (mwh@sysrq.dk)
   6 //  Andreas Nahr (ClassDevelopment@A-SoftTech.com)
   7 //
   8 // (C) 2003 Martin Willemoes Hansen
   9 // (C) 2003 Andreas Nahr
  10 //
  11
  12 //
  13 // Permission is hereby granted, free of charge, to any person obtaining
  14 // a copy of this software and associated documentation files (the
  15 // "Software"), to deal in the Software without restriction, including
  16 // without limitation the rights to use, copy, modify, merge, publish,
  17 // distribute, sublicense, and/or sell copies of the Software, and to
  18 // permit persons to whom the Software is furnished to do so, subject to
  19 // the following conditions:
  20 //
  21 // The above copyright notice and this permission notice shall be
  22 // included in all copies or substantial portions of the Software.
  23 //
  24 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  25 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  26 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  27 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  28 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  29 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  30 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  31 //
  32
  33 using System;
  34 using System.Drawing;
  35 using System.ComponentModel;
  36 using System.Windows.Forms;
  37
  38 namespace System.Drawing.Design
  39 {
  40         public class ColorEditor : UITypeEditor
  41         {
  42                 private ColorDialog colorEdit;
  43
  44                 public ColorEditor()
  45                 {
  46                 }
  47
  48                 public override object EditValue (ITypeDescriptorContext context,
  49                         IServiceProvider provider, object value)
  50                 {
  51                         // TODO MS.Net is using a in place color editor. We just use the modal
  52                         // Windows.Forms.ColorDialog to keep things simple for now
  53                         // especially as Windows.Forms are not fully implemented right now
  54
  55                         colorEdit = new ColorDialog ();
  56
  57                         if (value is Color)
  58                                 colorEdit.Color = (Color) value;
  59                         else
  60                                 // Set default
  61                                 colorEdit.Color = Color.White; // TODO set which color as default?
  62
  63                         colorEdit.FullOpen = true;
  64                         DialogResult result = colorEdit.ShowDialog();
  65
  66                         if (result == DialogResult.OK)
  67                                 return colorEdit.Color;
  68                         else
  69                                 return value;
  70                 }
  71
  72                 public override UITypeEditorEditStyle GetEditStyle (ITypeDescriptorContext context)
  73                 {
  74                         return UITypeEditorEditStyle.Modal;
  75
  76                         // TODO UITypeEditorEditStyle.DropDown is returned by the MS.Net library
  77                         // see EditValue why we use a modal window for now
  78                         // return UITypeEditorEditStyle.DropDown;
  79                 }
  80
  81                 public override bool GetPaintValueSupported (ITypeDescriptorContext context)
  82                 {
  83                         return true;
  84                 }
  85
  86                 public override void PaintValue (PaintValueEventArgs e)
  87                 {
  88                         Graphics G = e.Graphics;
  89
  90                         if (e.Value != null)
  91                         {
  92                                 Color C = (Color) e.Value;
  93                                 G.FillRectangle (new SolidBrush (C), e.Bounds);
  94                         }
  95
  96                         G.DrawRectangle (Pens.Black, e.Bounds);
  97                 }
  98         }
  99 }