public void PrintElement(BasicElement element, PdfDocument pdf, PdfStream pdfStream)
{
var type = element.GetType();
var adapter = new PdfStreamAdapter(pdfStream, defaultFont);
if (type == typeof (Text))
{
adapter.PrintText((Text) element);
}
else if (type == typeof (Expression))
{
adapter.PrintExpression((Expression) element);
}
else if (type == typeof (Image))
{
adapter.PrintImage((Image) element);
}
else if (type == typeof (Rectangle))
{
adapter.PrintRectangle((Rectangle) element);
}
else if (type == typeof (Bookmark))
{
PrintBookmark((Bookmark) element, pdf);
}
}
public PdfPage(int number, string resourcesRef, PdfStream content, int width, int height)
: base(number)
{
this.resourcesRef = resourcesRef;
this.width = width;
this.height = height;
Content = content;
}
public override int Output(Stream stream)
{
var length = 0;
var imgData = new PdfStream(0);
imgData.AddData(Image.GetBitmaps());
//apply filters if any
if (Image.Filter != null) imgData.AddFilter(Image.Filter);
var strFilters = imgData.ApplyFilters();
var sb = new StringBuilder();
sb.Append(Number);
sb.Append(" ");
sb.Append(Generation);
sb.Append(" obj\n<< /Type /XObject\n/Subtype /Image\n/Name /Im");
sb.Append(imgnumber);
sb.Append("\n/Length ");
sb.Append(imgData.Length);
sb.Append("\n/Width ");
sb.Append(Image.Width);
sb.Append("\n/Height ");
sb.Append(Image.Height);
sb.Append("\n/BitsPerComponent ");
sb.Append(Image.BitsPerPixel);
sb.Append("\n/ColorSpace ");
sb.Append(Image.ColorSpace.GetRepresentation());
if (Image.IsAdobe && Image.ColorSpace.ColorDevice == ColorDevice.DeviceCMYK)
{
//photoShop CMYK values are inverted
sb.Append("\n/Decode [ 1.0 0.0 1.0 0.0 1.0 0.0 1.1 0.0 ]\n");
}
sb.Append("\n");
sb.Append(strFilters);
sb.Append(">>\n");
var encoder = new ASCIIEncoding();
var bt = encoder.GetBytes(sb.ToString());
stream.Write(bt, 0, bt.Length);
stream.Flush();
length += bt.Length;
length += imgData.outputPDFStream(stream);
bt = encoder.GetBytes("endobj\n");
stream.Write(bt, 0, bt.Length);
stream.Flush();
length += bt.Length;
return length;
}
private PdfStream MakeStream()
{
var ps = new PdfStream(++objectcounter);
trailer.Add(ps);
return ps;
}
public PdfStreamAdapter(PdfStream pdfStream, string defaultFont)
{
this.pdfStream = pdfStream;
this.defaultFont = defaultFont;
}
