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); } }