So I now see where this is going be difficult. It pretty easy to change
margins, and then invoke "doc.newPage()". The difficult part is
reverting the following pages back to the standard margins.
I know when I'm about to start a page that needs different margins. I
only want those new margins on that page. Once I add enough content to
fill that page, the next page should revert back to the standard
margins.
page 1 has standard margins
page 2 has standard margins
page 3 has standard margins
Change my margins and do a page break
page 4 has custom margins
start adding content that may span multiple pages
page 5..N needs to go back to standard margins (which is why I as using
"onEndPage()" page event.)
If I can't (safely) change my document margins in onEndPage(), how else
can I know I've reached the end of page 4 and should reset my margins so
they are active on page 5+?
Hhmmmm....
----Original Message-----
From: 1T3XT BVBA [mailto:i...@1t3xt.info]
Sent: Thursday, July 28, 2011 9:58 AM
To: Post all your questions about iText here
Subject: Re: [iText-questions] Document getBottomMargin() bug
On 28/07/2011 15:42, Jason Berk wrote:
> Is the rule "once you change margins, top/bottom/left/right may not
> return what you expect"?
The rule is:
- don't change margins in PdfDocument (in a page event), change them in
Document (not in a page event).
- if you change them in Document, do so before triggering the newPage()
method.
- the new margins will only be "active" on the next page.
I don't have the time to adapt, compile and execute your example, but
this should be avoided:
public void onEndPage(PdfWriter writer, Document document) {
doc.setMargins(LEFT, RIGHT, TOP, BIG_BOTTOM); }
I see that you tried to work around the fact that document is actually a
PdfDocument instance.
This is inventive (it surprised me), but I don't think it's a good idea.
Operations on the Document object trigger page events, and you're
triggering operations on the Document inside page events.
I wouldn't bet on the outcome of such a workaround.
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