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http://www.openoffice.org/issues/show_bug.cgi?id=74516
Issue #|74516
Summary|jaggedness in endpoints of multiple overlines
Component|Formula editor
Version|OOo 2.1
Platform|All
URL|
OS/Version|All
Status|UNCONFIRMED
Status whiteboard|
Keywords|
Resolution|
Issue type|DEFECT
Priority|P5
Subcomponent|code
Assigned to|mru
Reported by|hgkamath
------- Additional comments from [EMAIL PROTECTED] Wed Feb 14 03:13:57 +0000
2007 -------
cosmetic
Within an OLE context, when Multiple over-lines are used,
The end-point of the left edge increases leftwards.
The end-point of the right edges increases and decreases repeatedly.
The expected behavior of the right edge
a) Increase uniformly (less desirable)
or b) remain constant
The expected behavior of the right edge is to
a) Increase uniformly like the left edge (less desirable)
This seems to be jagged at 400% zoom due to pixel rounding at 100 %zoom.
or b) Remain constant.
The moment you click on the object and enter into formula editing
the jaggedness becomes less noticeable, however still there.
In Standalone Open-office-Math or in formula-editting , this non-uniformity
is still present but very slightly, I think this gets
magnified in OLE context.
By close observation it seems like the right-endpoint is calculated by adding
a fixed length to the after-pixel-rounding location of the left-end-point.
I speculate that that the right thing to do is to calculate the right-endpoint
by adding a fixed length to the location before-pixel-rounding
left-end-point and then pixel-rounding that.
But then in the OLE-context mode the right edge seems able to take any
non-rounded values (in comparison to the first overline).
Which means maybe there is no necessity to pixel-round the location
of the left-edge
I might be wrong.
also effects widevec, widehat, widetilde, underline, overstroke
I think it is better to not have the line to increase
on either side. This permits two overlines to be considered
like a double overline with technically identically lines
of equal length. which means keep the left-end-point
the same as the previous left-end-point.
underbrace and overbrace don't seem to have this issue.
on XP, openoffice release version 2.1
just aesthetics, low priority.
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