[Libreoffice-bugs] [Bug 134500] New: Connector line real-time preview is showing incorrectly

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=134500

            Bug ID: 134500
           Summary: Connector line real-time preview is showing
                    incorrectly
           Product: LibreOffice
           Version: 4.0.0.3 release
          Hardware: All
                OS: All
            Status: UNCONFIRMED
          Severity: normal
          Priority: medium
         Component: Draw
          Assignee: libreoffice-bugs at lists.freedesktop.org
          Reporter: pasi.juppo at iki.fi

Description:
I've been using Draw for simple electronic schema designs and there I use a lot
of connectors from rectangle/circle/custom drawing to another. Connector lines
need to be adjusted pretty much always. But when adjusting the connector line
route by dragging from point (small rectangles in the line) the connector line
shows oftentimes something else than where it'll end up when I release mouse
button. E.g. moving the line right can show the real-time preview of line's new
position 1cm or more (relative to A4 paper size) horizontally incorrectly. The
line will move to exact position what mouse pointer shows but not where preview
shows.

This seems to happen more often when the drawing is more complex and
LibreOffice has been running for a longer period of time (days to weeks).

This issue has been there for a long time (years). There used to be more severe
issues thus didn't report it before.

Steps to Reproduce:
1. Create a pretty complex drawing (multiple rectangles with multiple
connection points on the edges of rectangle)
2. Add multiple connector lines from rectangle to another and adjust routing so
that the line does over cross over rectangles (L-shape, U-shape).
3. Adjust line routing with mouse (may require adjusting multiple lines or that
Draw has been running for longer period of time) and see what is the preview
line position and what is the actual line position after mouse button release.

Actual Results:
Connector line follows the mouse pointer but not real-time preview information.

Expected Results:
When Draw shows the real-time preview of the connector line route when
adjusting it, I'm expecting that when I release the mouse button the line will
be according to preview. Mouse pointer can be anywhere on the screen. (now it's
vice versa)


Reproducible: Always


User Profile Reset: No



Additional Info:
Version: 7.0.0.0.beta2
Build ID: 00(Build:0)
CPU threads: 16; OS: Linux 5.7; UI render: GL; VCL: kf5
Locale: fi-FI (fi_FI.utf8); UI: en-US
Calc: threaded

(This is a copy from Draw -> About LibreOffice but it shows Calc: threaded)

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