[Issue 125739] New: Small visible grid makes page change and other actions in Draw really slow

[bu...@apache.org]

https://issues.apache.org/ooo/show_bug.cgi?id=125739

          Issue ID: 125739
        Issue Type: DEFECT
           Summary: Small visible grid makes page change and other actions
                    in Draw really slow
           Product: Draw
           Version: 4.1.1
          Hardware: All
                OS: All
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: ui
          Assignee: issues@openoffice.apache.org
          Reporter: bugs@bitmuster.org

Hi folks,

I was just wondering why Draw is so slow lately and consumes lots of computing
performance after updating to 4.1.1.
It seems like a fine visible grid is slowing Draw extremely down.

To reproduce
-Create a new Draw document
-Set unit of measurement to Millimeter
-Set grid to 1x1mm with subdivison of one
-Set grid to visible
-Add a second page and some objects
-E.g. switch between both pages -> 100% load for about 3-5 seconds and ui is
blocked

Here are some examples of actions that take longer after updating:
- Page changes (4s)
- Zooming (2-3s)
- Set zoom to "Optimal" (10s)
- Hiding/Showing sidebars (2s)
(Scrolling is surprisingly not affected)
(Deactivating aliasing doesn't change this)

I've also compared the behaviour with 4.1.0 on another (even slower) machine
there it behaves considerably faster (faster than 0.5s).

Thanks
Best Regards
Michael

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