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List:       fop-dev
Subject:    Re: What is Renderable?
From:       Jeremias Maerki <dev () jeremias-maerki ! ch>
Date:       2010-11-19 8:47:51
Message-ID: 20101119094716.583F.60BA733C () jeremias-maerki ! ch
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Answered on fop-users.

On 18.11.2010 16:16:41 Eric Douglas wrote:
> So I sent a message to the fop-users list yesterday because there's
> something I can't figure out how to do, but it might belong on the dev
> list if there actually isn't a way to do it?  So I'm a little
> confused...
> 
> Here's my case.
> 
> I'm using FOP 0.95 jars for reporting with embedded code in
> client-server programs using webstart.  I start with an XML file and an
> XSL file on the server.  I can transform these on the server and get the
> results in an output stream which I can send to a printer or copy to the
> client and save as a PDF on their local machine.  That works great.
> 
> Now I have an option to send the output to a custom print preview window
> using the PreviewPanel object.  That of course has to be created on the
> client.  I don't see any way to use the output stream from the transform
> on the server as input to that object.  The only way I currently have it
> working is to stream down the XML and XSL files and do the transform on
> the client.  It seems this loads the data into the PreviewPanel object
> because the PreviewPanel constructor passes in the FOUserAgent, which is
> also the input parameter to the FopFactory.newFop() method, the
> Fop.getDefaultHandler method is the input to the SAXResult constructor,
> and the SAXResult is the input to the transform so they're all linked.
> This takes a lot longer than transforming on the server and getting the
> output stream which can either be printed or saved as a PDF.  Am I
> missing something?  Does all of this processing have to be done on the
> client to use the PreviewPanel?  It has a third input parameter of class
> Renderable.  It seems this refers to an interface, but I don't see
> anything which implements it or returns an object of this class.  Do I
> need to create my own custom class to use it?  Does this need to be
> connected to the FOTreeBuilder or DefaultHandler class?  Why does
> AWTRenderer have a setRenderable method but no getRenderable method?
> 




Jeremias Maerki


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