private ImageSource GetBitmap(SvgImageElement element, WpfDrawingContext context)
{
if (element.IsSvgImage)
{
return(null);
}
if (element.Href == null)
{
return(null);
}
if (!element.Href.AnimVal.StartsWith("data:", StringComparison.OrdinalIgnoreCase))
{
SvgUriReference svgUri = element.UriReference;
string absoluteUri = svgUri.AbsoluteUri;
if (string.IsNullOrWhiteSpace(absoluteUri))
{
return(null); // most likely, the image does not exist...
}
if (absoluteUri.StartsWith("#", StringComparison.OrdinalIgnoreCase))
{
Trace.WriteLine("Uri: " + absoluteUri); // image elements can't reference elements in an svg file
return(null);
}
Uri imageUri = new Uri(svgUri.AbsoluteUri);
if (imageUri.IsFile)
{
if (File.Exists(imageUri.LocalPath))
{
BitmapImage imageSource = new BitmapImage();
imageSource.BeginInit();
imageSource.CacheOption = BitmapCacheOption.OnLoad;
imageSource.CreateOptions = BitmapCreateOptions.IgnoreImageCache
| BitmapCreateOptions.PreservePixelFormat;
imageSource.UriSource = imageUri;
imageSource.EndInit();
// imageSource.Freeze();
return(imageSource);
}
return(null);
}
else
{
Stream stream = svgUri.ReferencedResource.GetResponseStream();
BitmapImage imageSource = new BitmapImage();
imageSource.BeginInit();
imageSource.CacheOption = BitmapCacheOption.OnLoad;
imageSource.CreateOptions = BitmapCreateOptions.IgnoreImageCache
| BitmapCreateOptions.PreservePixelFormat;
imageSource.StreamSource = stream;
imageSource.EndInit();
// imageSource.Freeze();
return(imageSource);
}
}
else
{
WpfEmbeddedImageVisitor imageVisitor = context.ImageVisitor;
if (imageVisitor != null)
{
ImageSource visitorSource = imageVisitor.Visit(element, context);
if (visitorSource != null)
{
return(visitorSource);
}
}
string sURI = element.Href.AnimVal.Replace(" ", "");
int nColon = sURI.IndexOf(":", StringComparison.OrdinalIgnoreCase);
int nSemiColon = sURI.IndexOf(";", StringComparison.OrdinalIgnoreCase);
int nComma = sURI.IndexOf(",", StringComparison.OrdinalIgnoreCase);
string sMimeType = sURI.Substring(nColon + 1, nSemiColon - nColon - 1);
string sContent = sURI.Substring(nComma + 1);
byte[] bResult = Convert.FromBase64CharArray(sContent.ToCharArray(),
0, sContent.Length);
BitmapImage imageSource = new BitmapImage();
imageSource.BeginInit();
imageSource.CreateOptions = BitmapCreateOptions.PreservePixelFormat;
imageSource.StreamSource = new MemoryStream(bResult);
imageSource.EndInit();
// imageSource.Freeze();
return(imageSource);
}
}
private BitmapSource GetBitmap(SvgImageElement element, WpfDrawingContext context)
{
if (element.IsSvgImage)
{
return(null);
}
if (!element.Href.AnimVal.StartsWith("data:"))
{
SvgUriReference svgUri = element.UriReference;
string absoluteUri = svgUri.AbsoluteUri;
if (String.IsNullOrEmpty(absoluteUri))
{
return(null); // most likely, the image does not exist...
}
Uri imageUri = new Uri(svgUri.AbsoluteUri);
if (imageUri.IsFile)
{
if (File.Exists(imageUri.LocalPath))
{
BitmapImage imageSource = new BitmapImage();
imageSource.BeginInit();
imageSource.CreateOptions = BitmapCreateOptions.PreservePixelFormat;
imageSource.UriSource = imageUri;
imageSource.EndInit();
return(imageSource);
}
return(null);
}
else
{
Stream stream = svgUri.ReferencedResource.GetResponseStream();
BitmapImage imageSource = new BitmapImage();
imageSource.BeginInit();
imageSource.CreateOptions = BitmapCreateOptions.PreservePixelFormat;
imageSource.StreamSource = stream;
imageSource.EndInit();
return(imageSource);
}
}
else
{
WpfEmbeddedImageVisitor imageVisitor = context.ImageVisitor;
if (imageVisitor != null)
{
BitmapSource visitorSource = imageVisitor.Visit(element, context);
if (visitorSource != null)
{
return(visitorSource);
}
}
string sURI = element.Href.AnimVal;
int nColon = sURI.IndexOf(":");
int nSemiColon = sURI.IndexOf(";");
int nComma = sURI.IndexOf(",");
string sMimeType = sURI.Substring(nColon + 1, nSemiColon - nColon - 1);
string sContent = sURI.Substring(nComma + 1);
byte[] bResult = Convert.FromBase64CharArray(sContent.ToCharArray(),
0, sContent.Length);
BitmapImage imageSource = new BitmapImage();
imageSource.BeginInit();
imageSource.CreateOptions = BitmapCreateOptions.PreservePixelFormat;
imageSource.StreamSource = new MemoryStream(bResult);
imageSource.EndInit();
return(imageSource);
}
}
