make fallbacks for GdiCharSet, GdiVerticalFont

[mono.git] / mcs / class / System.Drawing / System.Drawing / ImageConverter.cs

diff --git a/mcs/class/System.Drawing/System.Drawing/ImageConverter.cs b/mcs/class/System.Drawing/System.Drawing/ImageConverter.cs
index a4f9efb2102d8b99e00b03e3ec13191dbecf32df..3367e207fb1f2770642f51b39d85a239512b297f 100644 (file)
--- a/mcs/class/System.Drawing/System.Drawing/ImageConverter.cs
+++ b/mcs/class/System.Drawing/System.Drawing/ImageConverter.cs
@@ -1,24 +1,101 @@
-//\r
-// System.Drawing.ImageConverter.cs\r
-//\r
-// Author:\r
-//   Dennis Hayes (dennish@Raytek.com)\r
-//\r
-// (C) 2002 Ximian, Inc\r
 //
-\r
+// System.Drawing.ImageConverter.cs
+//
+// Author:
+//   Dennis Hayes (dennish@Raytek.com)
+//   Sanjay Gupta (gsanjay@novell.com)
+//
+// (C) 2002 Ximian, Inc
+//
+
+//
+// Copyright (C) 2004 Novell, Inc (http://www.novell.com)
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+// 
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+//
+
 using System;
-using System.ComponentModel;\r
-\r
-namespace System.Drawing\r
-{\r
-       /// <summary>\r
-       /// Summary description for ImageConverter.\r
-       /// </summary>\r
-       public class ImageConverter : TypeConverter\r
-       {\r
-               public ImageConverter()\r
-               {\r
-               }\r
-       }\r
-}\r
+using System.ComponentModel;
+using System.Globalization;
+using System.IO;
+using System.Drawing.Imaging;
+
+namespace System.Drawing
+{
+       /// <summary>
+       /// Summary description for ImageConverter.
+       /// </summary>
+       public class ImageConverter : TypeConverter
+       {               
+               public ImageConverter ()
+               {
+               }
+               
+               public override bool CanConvertFrom (ITypeDescriptorContext context, Type srcType)
+               {
+                       if (srcType == typeof (System.Byte[]))
+                               return true;
+                       else
+                               return false; 
+               }
+
+               public override bool CanConvertTo (ITypeDescriptorContext context, Type destType)
+               {
+                       if ((destType == typeof (System.Byte[])) || (destType == typeof (System.String)))
+                               return true;
+                       else
+                               return false;
+               }
+               
+               public override object ConvertFrom (ITypeDescriptorContext context, CultureInfo culture, object val)
+               {
+                       byte [] bytes = val as byte [];
+                       if (bytes == null)
+                               return base.ConvertFrom (context, culture, val);
+                       
+                       MemoryStream ms = new MemoryStream (bytes);
+                       
+                       return Image.FromStream (ms);   
+               }
+
+               public override object ConvertTo (ITypeDescriptorContext context, CultureInfo culture, object val, Type destType )
+               {
+                       if ((val is System.Drawing.Image) && (destType == typeof (System.String)))
+                               return val.ToString ();
+                       else if (CanConvertTo (null, destType)){
+                               //came here means destType is byte array ;
+                               MemoryStream ms = new MemoryStream ();
+                               ((Image)val).Save (ms, ((Image)val).RawFormat);
+                               return ms.GetBuffer ();
+                       }else
+                               return new NotSupportedException ("ImageConverter can not convert from " + val.GetType ());
+               }
+
+               public override PropertyDescriptorCollection GetProperties (ITypeDescriptorContext context, object val, Attribute[] attribs)
+               {
+                       return TypeDescriptor.GetProperties (typeof (Image), attribs);
+               }
+
+               public override bool GetPropertiesSupported (ITypeDescriptorContext context )
+               {
+                       return true; 
+               }
+       }
+}