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/***************************************************************************\
*
* File: ColorConvertedBitmapExtension.cs
*
* Class for Xaml markup extension for static resource references.
*
* Copyright (C) 2004 by Microsoft Corporation. All rights reserved.
*
\***************************************************************************/
using System;
using System.IO;
using System.Collections;
using System.Diagnostics;
using System.Windows;
using System.Windows.Documents;
using System.Windows.Markup;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Reflection;
using MS.Internal;
namespace System.Windows
{
/// <summary>
/// Class for Xaml markup extension for ColorConvertedBitmap with non-embedded profile.
/// </summary>
[MarkupExtensionReturnType(typeof(ColorConvertedBitmap))]
public class ColorConvertedBitmapExtension : MarkupExtension
{
/// <summary>
/// Constructor that takes no parameters
/// </summary>
public ColorConvertedBitmapExtension()
{
}
/// <summary>
/// Constructor that takes the markup for a "{ColorConvertedBitmap image source.icc destination.icc}"
/// </summary>
public ColorConvertedBitmapExtension(
object image)
{
if (image == null)
{
throw new ArgumentNullException("image");
}
string[] tokens = ((string)image).Split(new char[] { ' ' });
foreach (string str in tokens)
{
if (str.Length > 0)
{
if (_image == null)
{
_image = str;
}
else if (_sourceProfile == null)
{
_sourceProfile = str;
}
else if (_destinationProfile == null)
{
_destinationProfile = str;
}
else
{
throw new InvalidOperationException(SR.Get(SRID.ColorConvertedBitmapExtensionSyntax));
}
}
}
}
/// <summary>
/// Return an object that should be set on the targetObject's targetProperty
/// for this markup extension. For ColorConvertedBitmapExtension, this is the object found in
/// a resource dictionary in the current parent chain that is keyed by ResourceKey
/// </summary>
/// <returns>
/// The object to set on this property.
/// </returns>
public override object ProvideValue(IServiceProvider serviceProvider)
{
if (_image == null)
{
throw new InvalidOperationException(SR.Get(SRID.ColorConvertedBitmapExtensionNoSourceImage));
}
if (_sourceProfile == null)
{
throw new InvalidOperationException(SR.Get(SRID.ColorConvertedBitmapExtensionNoSourceProfile));
}
// [BreakingChange] Dev10 Bug #454108
// We really should throw an ArgumentNullException here for serviceProvider.
// Save away the BaseUri.
IUriContext uriContext = serviceProvider.GetService(typeof(IUriContext)) as IUriContext;
if( uriContext == null )
{
throw new InvalidOperationException(SR.Get(SRID.MarkupExtensionNoContext, GetType().Name, "IUriContext" ));
}
_baseUri = uriContext.BaseUri;
Uri imageUri = GetResolvedUri(_image);
Uri sourceProfileUri = GetResolvedUri(_sourceProfile);
Uri destinationProfileUri = GetResolvedUri(_destinationProfile);
ColorContext sourceContext = new ColorContext(sourceProfileUri);
ColorContext destinationContext = destinationProfileUri != null ?
new ColorContext(destinationProfileUri) :
new ColorContext(PixelFormats.Default);
BitmapDecoder decoder = BitmapDecoder.Create(
imageUri,
BitmapCreateOptions.IgnoreColorProfile | BitmapCreateOptions.IgnoreImageCache,
BitmapCacheOption.None
);
BitmapSource bitmap = decoder.Frames[0];
FormatConvertedBitmap formatConverted = new FormatConvertedBitmap(bitmap, PixelFormats.Bgra32, null, 0.0);
object result = formatConverted;
try
{
ColorConvertedBitmap colorConverted = new ColorConvertedBitmap(formatConverted, sourceContext, destinationContext, PixelFormats.Bgra32);
result= colorConverted;
}
catch (FileFormatException)
{ // Gracefully ignore non-matching profile
// If the file contains a bad color context, we catch the exception here
// since color transform isn't possible
// with the given color context.
}
return result;
}
private Uri GetResolvedUri(string uri)
{
if (uri == null)
{
return null;
}
return new Uri(_baseUri,uri);
}
string _image;
string _sourceProfile;
Uri _baseUri;
string _destinationProfile;
}
}
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