Module | Prawn::Document::Internals |
In: |
lib/prawn/document/internals.rb
|
This module exposes a few low-level PDF features for those who want to extend Prawn‘s core functionality. If you are not comfortable with low level PDF functionality as defined by Adobe‘s specification, chances are you won‘t need anything you find here.
Appends a raw string to the current page content.
# Raw line drawing example: x1,y1,x2,y2 = 100,500,300,550 pdf.add_content("%.3f %.3f m" % [ x1, y1 ]) # move pdf.add_content("%.3f %.3f l" % [ x2, y2 ]) # draw path pdf.add_content("S") # stroke
The Name dictionary (PDF spec 3.6.3) for this document. It is lazily initialized, so that documents that do not need a name dictionary do not incur the additional overhead.
Creates a new Prawn::Reference and adds it to the Document‘s object list. The data argument is anything that Prawn::PdfObject() can convert.
If a block is given, it will be invoked just before the object is written out to the PDF document stream. This allows you to do deferred processing on some references (such as fonts, which you might know all the details about until the last page of the document is finished).