Hi, Keiron

I'd like to look at the FO Object category.

I think your target date is a good one.


Quoting Keiron Liddle <[EMAIL PROTECTED]>:

> Hi All,
> These are the design tasks that I think we need to cover before (serious)
> coding is done on the new layout approach.
> FO Objects:
> The classes that represent the FO object heirarchy should implement one or
> more interfaces that represent what the object can do in terms of the
> layout and what it will add into the layout. An fo object can create an
> inline or a block area or return what its children create.
> Layout Managers:
> Areas that create a page or block area will need to implement a layout
> manager that can take the information for the current object and add child
> created areas. It is likely that there will be managers for page, block,
> table and list among others.
> Area Tree:
> The area tree needs to have all the appropriate block and inline areas and
> extra information to handle the layout process.
> Inline areas - character, leader, space, unresolved page, container etc.
> Block areas - in flow block, relative and absolute position, viewport areas
> Renderers:
> The renderers need to be able to handle the area tree. eg. blocks, inlines,
> fills, clips, viewports, etc.
> The design includes descriptions of what it does, the layout situations it
> handles and how it is used.
> Of course all of these parts will need to co-operate, so co-operation will
> be needed when doing the design.
> Across all of these are things like footnotes, floats and links.
> So far I have started to look at the area tree.
> So for those people who think they are up to the challenge we can start to
> get stuck into the lower level design/implementation of the new layout.
> I think a two week period is enough to get a good view of what we need to
> do here. So we can aim for 24 Sept.
> Documents will eventually be placed in docs/design to add to the current
> information.
> Any questions/comments are welcome and particularly contributions.
> Keiron
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