Well, if possible, I think plucker should optimize the recalculating 
mechanism. since I just put a fix
on the GetLineMetrics (fix for calculating line metric of non-English 
System). That will decrease performance a lot.

Regards,

Hilary

MATSUMOTO Masakazu wrote:

>
>That is not a problem, because even in current version, the height of
>the whole document is recalculated when we disable images and so on.
>However, such events, which cause total recaluclation, will rarely
>occur (except the first view of the document).
>
>In current code, (yes Hilary, it begins at DrawRecord,) we have to
>render whole paragraph even if we only want the last 1 line to draw.
>Rendering speed itself is not slow. I think the functions to render
>lines is well tuned and there are not so many rooms to be imploved.
>Only the problem is that it renders much outside the screen. Caching
>the position of each line, intead of offscreen image, seems easier
>for me.
>
>(I might be misunderstanding mechanism of rendering pages....)
>
>/matto
>
>



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