Hello David, I wanted to ask whether you are still working on this? Is there a rough estimate on when one could start to work on paged media support?
Thanks On Wednesday 16 May 2012 14:25:20 David Hyatt wrote: > The difficulty with implementing paged media right now is that I'm beginning > work on re-architecting pagination to unify columns, pages and regions. You > can see the beginnings of this with the new multi-column classes that have > been added to the tree. > > The basic idea is that multi-column layout is being separated from > RenderBlock and moved to a subclass, RenderMultiColumnBlock. Similar to how > regions work, the content is represented by a flow thread and by regions > that the flow thread is placed into. In order to avoid creating thousands > of regions for columns, I've introduced the concept of a "region set", > i.e., RenderMultiColumnSet. > > Pages ultimately need to be rebuilt to work the same way, i.e., to have a > RenderPageFlowThread and a RenderPageSet. Once we have actual renderers > that represent these objects, it will be a lot easier to make real boxes > for things like margins, headers, footers, etc. The idea is that a set > represents a contiguous run of objects that can all be rendered > identically. If you're forced to have a different kind of object, e.g., a > page with a different width/height or different style, then you break up > the RenderPageSet and have multiple sets for each (this is similar to how > regions work by default, although I hope to apply the same optimization to > regions eventually as well if runs of same width/height regions are > detected that are also siblings in the render tree). > > dave -- Milian Wolff | milian.wo...@kdab.com | Software Engineer KDAB (Deutschland) GmbH&Co KG, a KDAB Group company Tel. Germany +49-30-521325470, Sweden (HQ) +46-563-540090 KDAB - Qt Experts - Platform-independent software solutions
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