Bernard, What sort of structure does rtf exhibit? Is it a page-based structure, or is it divided, like xslfo, into page definitions and flows? This is a critical difference as far as the design goes. From what you say below, it seems to rely on a flow-based model.
Peter Keiron Liddle wrote: > On 2002.01.11 10:38 Bertrand Delacretaz wrote: ... > >> contracts: >> c1. zero to N StructureEventListeners can register with an FONode to >> receive StructureEvents >> >> c2. an FONode that does not have its own list of StructureEventListeners >> uses that from its parent >> >> c3. StructureEvents are like: FONodeStartEvent, FONodeEndEvent, >> FONodeAttributesEvent which are sent at the end of the corresponding >> FONode >> methods >> >> c4. FONode has an "usage counter", that prevents it and its parents from >> being disposed of until its value is zero (or do we want to rely on the >> gabage collector only for this?) >> >> In this way, StructureEventListeners (like an RtfRenderer based on jfor >> code) >> could release FONodes early if they are able to render on the fly, or >> keep >> them around if needed. >> >> How does this sound? > > > This doesn't quite feel right to me. > Why do we need to count things if those that need them simply keep a > reference. > Do we need to have this completely separate method of reading the fo > tree (layout managers is the other) when both do some similar things. > I'm not sure, I just can't picture how it should work at the moment. > > We need: > - start and end of document > - start and end of page sequence > - resolved properties > - static areas > - add info after end of block level object: block, table, list etc. > > I don't quite understand how these things fit in the rtf. > > > >> Should we call everything StructureEvent... or FONodeEvent... or >> FOStructureEvent...? >> >> - Bertrand > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, email: [EMAIL PROTECTED] > --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, email: [EMAIL PROTECTED]
