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http://www.openoffice.org/issues/show_bug.cgi?id=98643
User od changed the following:
What |Old value |New value
================================================================================
CC|'aw,hi' |'aw,hi,os,pl'
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------- Additional comments from o...@openoffice.org Thu Mar 19 14:35:11 +0000
2009 -------
This is more or less a Writer issue.
But, as far as I know the Writer never had a cache for graphics, at least not
since OOo 1.1. What is cached is a bitmap of the graphic for its current screen
output size in the current resolution for the screen output. This has not change
as far as I know since years. This bitmap is not used for PDF export, because in
general the PDF output device has another resolution than the screen. For the
PDF export the intrinsic graphic has to be loaded again. This has not been
changed for years as far as I know. Thus, I suspect that the load of the linked
graphics in Writer causes the performance differences in the above mentioned
versions of OOo.
Interesting is the great performance in OOo 2.4 - I will have a deeper look at
this version.
Note: Unfortunately, the cache for the screen output is invalidated mostly each
time the graphic is shown on a different screen position, because the Writer
aligns the output area at pixel positions. This causes the output area to be one
pixel smaller and/or greater in each direction depending on the actual screen
position. But this not the problem for this issue.
Note: Currently work in planned to replace the Writer implementation of graphics
by the corresponding Draw implementation. Then all the special stuff of the
Writer regarding graphics will be history.
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