https://issues.apache.org/ooo/show_bug.cgi?id=120030

[email protected] changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Issue Type|DEFECT                      |ENHANCEMENT

--- Comment #2 from [email protected] ---
Solution: do limit on swflyfrm::paint.
1. add a varible bIsInGenerateThumbnail in SfxObjectShell.
2. add a member function IsInGenerateAndStoreThumbnail in SfxObjectShell, used
to get value of bIsInGenerateThumbnail.
3. at beginning of SfxObjectShell::GenerateAndStoreThumbnail, set
bIsInGenerateThumbnail as true to indicate thumbnail is beening generated and
stored.
4. at beginning of SwFlyFrm::Paint, get value of bIsInGenerateThumbnail, if is
true,get current view area, compared with current fly frame's area, if the two
rectangle not intersect, no need repiant, return.

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