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List:       koffice
Subject:    Re: Loading and saving
From:       David Faure <faure () kde ! org>
Date:       1999-11-17 20:49:26
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On Wed, Nov 17, 1999 at 10:37:27PM +0100, Michael Koch wrote:
> Hi all,
> 
> 
> Currently I try to implement loading and saving in KImage. Therefore I have
> several questions:
> 
> What shall I use ? DOM (QDom and friends) or KOML ?

QDom and QXml, strongly recommended.

> I want to write 2 files packed in a tgz each time (like KWord) does it. But I
> can only write a XML-file. I dont know why.
Because you need to reimplement bool hasToWriteMultipart();  to say TRUE.

Use the koStore interface (creating a KTarStore), with tar:0 tar:1 as internal filenames
They will become part0.xml and part1.xml in the tar file, see docu :
  // tar:/0 is saved as part0.xml
  // tar:/0/1 is saved as part0/part1.xml
  // tar:/0/1/pictures/picture0.png is saved as part0/part1/pictures/picture0.png
(this conversion exists for compatibility reasons) 

> Which methods do I have to overload to implement this (Saving data as embedded
> part shall work too)
The protected methods of KOfficeDoc :
 virtual bool saveChildren( KoStore* store, const char *path );  
 virtual bool loadChildren( KoStore* ); 
Generally, the docu says which methods to overload.

Feel free to ask if anything is unclear.

-- 
David FAURE
david@mandrakesoft.com, faure@kde.org
http://home.clara.net/faure/
KDE, Making The Future of Computing Available Today

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