Re: PDFKit guidance
Re: PDFKit guidance
- Subject: Re: PDFKit guidance
- From: Kai <email@hidden>
- Date: Fri, 20 Jun 2008 22:30:27 +0200
On 20.6.2008, at 13:47, Torsten Curdt wrote:
On Jun 20, 2008, at 13:09, Antonio Nunes wrote:
On 20 Jun 2008, at 11:07, Torsten Curdt wrote:
you can't go wrong by reading the "Cocoa
Drawing Guide."
Surely will read through that. Because frankly speaking I didn't
think this was Quartz related.
Well, you need to know how to generally draw in Cocoa, and you need
to know how to take advantage of PDFKit, so both John Calhoun and
Joel Norvell provided useful pointers.
The scaling is done when a PDFPage needs to be drawn, so you need
to implement it in your subclass's drawWithBox: method. Use an
affine transform set up to serve your needs and apply it to the
current graphics context within the drawWithBox: method before
drawing the page.
Right. The point though is - I don't really want to display it. So I
did not look into the drawing side of things. But I guess I just
read up on the Quartz stuff and then get back to you guys (if
needed). I assume one could also draw in memory - without
displaying. Just didn't know that's the right direction.
You just should be aware that Quartz rewrites the PDF from scratch
when using this approach. That is, while still showing the same
grafics, the result is a completely new PDF file with potentially very
different structure. Plus, since Quartz is about displaying, some non-
display properties of the original PDF may be lost. Its a while ago
that I last checked (Tiger, I think), but I would be surprised if
Quartz became perfect in this respect in the meantime.
Depending on your application, this may be between no problem and
inacceptable.
Greetings
Kai
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