diff options
Diffstat (limited to 'mcs/class/System.Drawing/System.Drawing/ImageConverter.cs')
-rw-r--r-- | mcs/class/System.Drawing/System.Drawing/ImageConverter.cs | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/mcs/class/System.Drawing/System.Drawing/ImageConverter.cs b/mcs/class/System.Drawing/System.Drawing/ImageConverter.cs new file mode 100644 index 00000000000..3367e207fb1 --- /dev/null +++ b/mcs/class/System.Drawing/System.Drawing/ImageConverter.cs @@ -0,0 +1,101 @@ +// +// 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; +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; + } + } +} |