/// <summary>
/// Writes the XAML from specified EMF input stream.
/// </summary>
/// <param name="input">The input.</param>
/// <param name="output">The output.</param>
public override void ToXaml(Stream input, XmlWriter output)
{
if (input == null)
{
throw new ArgumentNullException("input");
}
byte[] header;
if (!ByteUtility.TryRead(input, 40, out header) || ReadUInt32(header, 0) != 0x9ac6cdd7)
{
throw new ConverterException(Resources.ExceptionNoEmfStream);
}
// EMF special header
short handle = ReadInt16(header, 4);
short left = ReadInt16(header, 6);
short top = ReadInt16(header, 8);
short right = ReadInt16(header, 10);
short bottom = ReadInt16(header, 12);
short twipsPerInch = ReadInt16(header, 14);
int reserved = ReadInt32(header, 16);
short checksum = ReadInt16(header, 20);
// EMF meta header
short fileType = ReadInt16(header, 22);
short headerSize = ReadInt16(header, 24);
short version = ReadInt16(header, 26);
int fileSize = ReadInt32(header, 28);
short numberOfObjects = ReadInt16(header, 32);
int maxRecordSize = ReadInt32(header, 34);
short noParameters = ReadInt16(header, 38);
EmfContext context = new EmfContext();
double width = right - left;
double height = bottom - top;
context.ViewPortExt = new Point(width, height);
context.Scale = 1D / 15D * 1440 / twipsPerInch; // converts twips to pixels
WriteStartElement(output, "Canvas");
WriteAttribute(output, "Width", width * context.Scale);
WriteAttribute(output, "Height", height * context.Scale);
WriteAttribute(output, "HorizontalAlignment", "Left");
WriteAttribute(output, "VerticalAlignment", "Top");
while (ReadRecord(input, context, output))
{
;
}
WriteEndElement(output);
}
