Hi Paulo,
I even had to make it more ugly, because generic tags are always triggered
before cellevents. At the time of the generic tag I don't have the
rectangle values of the cellevent. In order to get it running properly I
had to mess around with additonal generic tags after the first and after
the last cellevent. But now enough of developer scaring :)
Maybe I will remove the whole cellevent stuff and do it only with generic
tags to get rid of the additonal tags.
Thanks again for your help.
Best Regards
Benjamin
Paulo Soares <[EMAIL PROTECTED]>
29.09.2008 12:46
Bitte antworten an
Post all your questions about iText here
<itext-questions@lists.sourceforge.net>
An
Post all your questions about iText here
<itext-questions@lists.sourceforge.net>
Kopie
Thema
Re: [iText-questions] Antwort: Re: Antwort: Antwort: Re: PdfPCellEvent and
Pagebreak Problem
The last even triggered requirement changes everything and it can't be
done without changing iText. A (ugly) workaround is to have a generic tag
event placed in the last char of the last paragraph to mark the validity
of the cell event.
Paulo
> -----Original Message-----
> From: Benjamin Rein [mailto:[EMAIL PROTECTED]
> Sent: Monday, September 29, 2008 10:55 AM
> To: Post all your questions about iText here
> Subject: [iText-questions] Antwort: Re: Antwort: Antwort: Re:
> PdfPCellEvent and Pagebreak Problem
>
>
> Hi Paulo,
>
> the problem is that I don't need the cell coordinates of the
> first triggered event of each cell, but the coordinates of
> the last event triggered for each cell. These two can be the
> same if the cell fits completely on one page. I should have
> made this requirement clear in the beginning...
>
> My problem is that I don't know if the current triggered
> event is the last one for this cell or not. I've already
> thought about several approaches to deal with the problem:
>
> 1. Use the ColumnText object of the PdfPCell inside the
> cellLayout method to gather the neccessary information. >
> It's only possible to recognise a pagebreak. But you don't
> know if the remaining text in the readonly ColumnText object
> fits the current page or not. Return value of inner ct.go()
> method is not accessible.
>
> 2. The cellevent should only be used to collect the
> coordinates of every event. After that just use the
> coordinates which were added last for every cell. > Problem
> here is that after all events were triggered I can only write
> to the last i.e. current page of the document. Am I missing
> something here?
>
> 3. Calculate the space that is needed by the cell and guess
> on which page i.e. count of event releases the last line will
> be printed. > I haven't tried that one yet, because it seems
> to unpredictable to me (pagebreaks done by iText have to be
> taken into account).
>
> Do you or anyone else has another hint for me? Thanks in advance.
>
> Best Regards
> Benjamin
>
>
>
> Paulo Soares <[EMAIL PROTECTED]>
>
> 26.09.2008 15:40
> Bitte antworten an
> Post all your questions about iText here
> <itext-questions@lists.sourceforge.net>
>
> An
> Post all your questions about iText here
> <itext-questions@lists.sourceforge.net>
> Kopie
> Thema
> Re: [iText-questions] Antwort: Antwort: Re: PdfPCellEvent and
> Pagebreak Problem
>
>
>
>
>
>
> I'm not sure I can see a problem here. Have a variable in
> your code to keep track of the number of times the event was
> called. If it's the second time just ignore.
>
> Paulo
>
> > -----Original Message-----
> > From: Benjamin Rein [mailto:[EMAIL PROTECTED]
> > Sent: Friday, September 26, 2008 1:22 PM
> > To: Post all your questions about iText here
> > Subject: [iText-questions] Antwort: Antwort: Re:
> > PdfPCellEvent and Pagebreak Problem
> >
> >
> > I just made a mistake in my last response. If
> > cell.getColumn().getLinesWritten() == 0 there was no
> > pagebreak. There was a pagebreak when
> > cell.getColumn().getLinesWritten() returns a value != 0. The
> > value returned is the line count which was written from the
> > content of the PdfPCell on the page before.
> >
> > Best Regards,
> > Benjamin Rein
> >
> >
> >
> > Benjamin Rein <[EMAIL PROTECTED]>
> >
> > 26.09.2008 14:11
> > Bitte antworten an
> > Post all your questions about iText here
> > <itext-questions@lists.sourceforge.net>
> >
> > An
> > Post all your questions about iText here
> > <itext-questions@lists.sourceforge.net>
> > Kopie
> > Thema
> > [iText-questions] Antwort: Re: PdfPCellEvent and Pagebreak Problem
> >
> >
> >
> >
> >
> >
> >
> > Hi Paulo,
> >
> > thanks for your fast reply. The idea is good, but the
> > realisation is not that easy. At the moment I can recognize
> > the first pagebreak with cell.getColumn().getLinesWritten()
> > == 0 inside the cellevent. If this condition is true, the
> > cell with the event and the paragraph within are at least
> > spanning two pages.
> >
> > I don't know any conditions for a cell which fits on one page
> > and for a cell that needs more than 2 pages. Somehow I have
> > to calculate the space the content inside the cell needs and
> > the page on which the cell ends. Could you please give me a
> > hint or an example for this? Thanks very much.
> >
> > Best Regards,
> > Benjamin Rein
> >
> >
> > Paulo Soares <[EMAIL PROTECTED]>
> >
> > 26.09.2008 13:27
> >
> > Bitte antworten an
> > Post all your questions about iText here
> > <itext-questions@lists.sourceforge.net>
> >
> > An
> > Post all your questions about iText here
> > <itext-questions@lists.sourceforge.net>
> > Kopie
> > Thema
> > Re: [iText-questions] PdfPCellEvent and Pagebreak Problem
> >
> >
> >
> >
> >
> >
> >
> >
> > What prevents you to ignore the other calls in your
> > PdfPCellEvent implementation?
> >
> > Paulo
> >
> > > -----Original Message-----
> > > From: Benjamin Rein [mailto:[EMAIL PROTECTED]
> > > Sent: Friday, September 26, 2008 11:16 AM
> > > To: itext-questions@lists.sourceforge.net
> > > Subject: [iText-questions] PdfPCellEvent and Pagebreak Problem
> > >
> > >
> > > Hi everyone,
> > >
> > > I'm using a PdfPCellEvent to get the Y coordinate after
> > > adding a Paragraph wrapped in a PdfPCell to a PdfPTable. With
> > > the Y coordinate I write some other stuff using ColumnText on
> > > the right side of the column where the Paragraph is added. If
> > > the Paragraph fits on one page everything is working fine.
> > >
> > > If the Paragraph spans multiple pages the event is called
> > > once for every page the Paragraph is printed on (e.g.
> > > Paragraph spans 3 pages. Event is called 3 times). This
> > > absolutely makes sense for creating custom cell borders and
> > > the like. But I need to have the event called only once for
> > > every Paragraph ignoring the number of pages which the
> > > Paragraph needs to be completely displayed. Is there any
> > > chance to achieve this with PdfPCellEvent or should I rather
> > > use something else?
> > >
> > > Thanks in advance.
> > >
> > > Best Regards,
> > > Benjamin Rein
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