[Bug] Font attributes not transferred when slide is duplicated or text copied

[sparrowme]

Describe the bug

The font spacing/kerning of bold text is not transferred when slide is duplicated or text is copied and pasted into a new slide.

To Reproduce

1. Paste text from an external source.
2. Bold a portion of the text in the text object.
3. Duplicate slide in the sidebar or copy the text object
4. Duplicated slide / pasted text object does not match original

Expected behavior

Duplicated slides should be exact copies.

Actual behavior

When duplicating the slide, it appears to loose some of the original text font attributes. This also occurs if a text object is copied directly and pasted into a new slide. Bold text seems be a kerning/spacing issue. The x,y location also appears to be off when pasting (separate issue?).

Screenshots

Note the difference in the bold text in the upper left.

Font height and spacing is different on new slide of bold text.

Additional resources

PDF, images, sounds... anything useful to reproduce the bug

Context

• reproducibility : systematic
• OpenBoard version :
  • bug happens with : 1.7.x... 1.7.5
  • didn't check : any others
• OS :
  • bug happens with : Linux
  • didn't check : Windows macOS
• Installation source : build
• If you built OpenBoard from source, please provide the branch you're working on : master

Additional context

• OS(es) detailed version (for the ones you reproduced the bug on)
  • Linux : 22.04.05 LTS
• number and resolution of monitors : 3
• if used, manufacturer and model of graphic tablet input device :

[letsfindaway]

When you close OpenBoard and open the document again, then even the originally pasted text looks like the copy. I think this has something to do with the way how OpenBoard stores such text in documents. It is converted to an HTML snippet containing the font attributes. It seems that this format cannot cover all the attributes of the originally pasted text.

I think that pasting a text from an external source could be improved. It does not well reflect the original text style.

I think this would first need some deeper analysis.

[sparrowme]

Would it then make sense to convert the pasted content to whatever storage format/limited attributes would be used before rendering it the first time? The impact to me is that I lay out a slide for presentation and when I open it later, especially on a different system, There are many overlapping objects that were not the way they were in the original layout. So it appears very "messy" if I had not returned to each slide and rearranged objects once again. I assume this would be expected if there was a font difference between machines, but that is not the case in this instance. I don't usually care what font is used by the system to render text when I am building a new slide.

[sparrowme]

This also appears to happen with other font attributes. If I use pasted text, and set a color attribute, the color is periodically lost when the file is closed and reopened. It reverts to black. I can't recreate this consistently yet. I suspect it has to do with the source attributes when pasted.

I noticed if I add text via the toolbar, it does retain the color.