https://bugs.documentfoundation.org/show_bug.cgi?id=148212
Bug ID: 148212
Summary: In Writer INLINE Math equation break rendering
Product: LibreOffice
Version: 7.3.1.3 release
Hardware: All
OS: Windows (All)
Status: UNCONFIRMED
Severity: normal
Priority: medium
Component: Writer
Assignee: libreoffice-bugs@lists.freedesktop.org
Reporter: freew...@poczta.fm
Description:
When I place Math equation inline with any text before it (to the left of the
Math object) and then modify said text (add or remove letters, causing
everything past the cursor position to move) the rendering of the entire line
breaks - most of the time it causes both the text and the equation to vanish,
leaving artifacts (similiar to that old scroll bug which caused the page
content to replicate vertically, can't remember the bug number), and sometimes
only the text vanishes, but the euqation is still visible.
Mind you, this only concerns a case where the euqation moves inline (left or
right) as a result of editing the line.
Also, if the text exceedes page width and the auto wrapping happens, the line
is redrawn properly, but once the editing before the equation happens, then the
issue comes back.
I can "force" the line to properly render by adding the newline or page/section
break manually (enter), or by scrolling the broken line off and then on the
screen, but obviously that's not optimal.
Steps to Reproduce:
1. Open writer (happens after a clean install)
2. Type any text, hit Ctrl+Alt+= enter any equation, leave Math editor
3. Put text cursor before (to the left of) the equation, and add or remove
letters
4. The text and the equation vanish forcing me to edit "blindfolded" (sometimes
leaving artifacts)
Actual Results:
When editing text to the left of the inline equation the line rendering breaks
- text and equation vanish
When adding line break to the affected line (anywhere) or extending its content
so auto-wrap happens, the line is redrawn properly
Also when I scroll the line off and then back on to the screen then the line
renders properly too
Expected Results:
Render (redraw) the line without text and equation vanishing
Reproducible: Always
User Profile Reset: Yes
OpenGL enabled: Yes
Additional Info:
I tried this with a clean install (%AppData%\Libreoffice removed, program
uninstalled with RevoUninstaller, and CCleaner used, rebooted, so no leftovers)
Also tried with and without Skia, and with and without hardware acceleration
Win7 X64 SP1, Thinkpad X220, apu is Intel HD 3000
I'm currently using PHDGH Omega 5.0 drivers, but this also happened before with
Intel's official 15.36 package for HD3000
I have absolutely no other graphic related issues.
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