On Mon, 11 Nov 2002, Dr William Bland wrote: > On Mon, Nov 11, 2002 at 08:31:19PM +1100, Martin Sevior wrote: > > > > On Mon, 2002-11-11 at 20:33, Dr William Bland wrote: > > > Hi all, > > > Ok, I've got the hang of stepping through a document, and now I've > > > successfully made changes to its piecetable. The missing link is > > > re-displaying the document. > > > > > > The following code works, but I can only see the changes if I save and > > > re-load the document. Otherwise the display doesn't get updated. > > > Any hints gratefully received. > > > > > > Best wishes, > > > Bill. > > > > > > PS: Note that I added PT_BufIndex::changeBufIndex(), but it just does > > > what you would expect. > > > > > > > Please don't expect abiword to work like this. We go to great lengths > > stop this sort of direct manipulations of the piecetable. > > > > Use the accessor functions in Pd_Document. > > Ok, I changed it to do everything using the Pd_Document functions and now > it works fine. I'm learning (slowly). >
Great! What you see on the screen is the fp* (Format Physical) classes interpretation of the fl_* (Format Layout) classes interpretations of the piecetable. Manipulations of the piecetable through pd_Document methods get translated into action on these classes via the fl_DocListener class. The manipulations on the piectable are also recorded into a Journal which gives the ability to unroll all the changes via undo/redo. Cheers Martin
