[Libreoffice-bugs] [Bug 92375] Impress loses cropped image ratio on saving and re-opening in different LO versions.

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=92375

Andrew Watson <notinteresting at gmx.com> changed:

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                 CC|                            |notinteresting at gmx.com

--- Comment #32 from Andrew Watson <notinteresting at gmx.com> ---
Created attachment 155188
  --> https://bugs.documentfoundation.org/attachment.cgi?id=155188&action=edit
Screenshot of attachment 116864 opened under macOS at 118 dpi

I've also been badly bitten by this bug when editing one Impress presentation
on a Mac laptop that, when travelling, is used stand-alone (display resolution
128 dpi), but when in the office is used docked with the clamshell closed and
driving an external keyboard and monitor (display resolution 118 dpi).

Cropped images in one Impress file get re-scaled between editing sessions on
the same machine, same LO version, depending on whether the document is opened
when the machine is docked, or when the machine is being used stand-alone.

This is certainly a serious bug.

BTW, I tested the original test file (attachment 116864) under:

Version: 6.4.0.0.alpha1
Build ID: cc57df8f942f239d29cb575ea5a7cb01405db787
CPU threads: 4; OS: Mac OS X 10.11.6; UI render: default; VCL: osx; 
Locale: en-GB (en_GB.UTF-8); UI-Language: en-GB
Calc: threaded

 ... and got the attached result. Note that both images on page 2 are enlarged,
losing information to the right and the bottom, but to a different extent than
in the screen shot in attachment 155185.

The small window in front of the LO Impress window is running dpi.jar:

https://github.com/UprootLabs/grinder/releases/download/v1.0.1/dpi.jar

This is a small Java program that reports the screen DPI seen via the Java APIs
- see the last answer in this Stackoverflow thread:

https://stackoverflow.com/questions/2621439/how-to-get-screen-dpi-linux-mac-programatically

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