Dimensions extension with visual bounding box displaces measurements

[Hachmann]

Bug first reported on the German Inkscape forum by user LaGGGer:

Steps to reproduce:

- Open Inkscape (German localization) with default A4 document.
- Create some rectangle or other shape
- Change page size from A4 to something else
- Now use the extension Visualize Path -> Dimensions with 'visual' set for the bounding box to use
- (Wait... (why is this so slow? Does it loop through different font sizes until it finds one that fits?))
- Find the rendered measurements far away from the original object (above if page size is smaller than A4, below if page size is larger)

Find an example result attached.

[Alvin Penner (apenner)]

reproduced on Windows 10, Inkscape 0.92.1 r15371

likely caused by the fact that the bounding box is obtained from the CLI command Popen('inkscape --query-%s') and this command will not be aware of the fact that the page size has changed.
The slow response time is probably related to the fact that a new instance of Inkscape has been opened.

[Hachmann (marenhachmann)]

Thanks for testing, Alvin!