[geany/geany] Buggy Cursor: It is visually offset from the position where it is actually located (#2217)

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terric

15 Jul 2019 15 Jul '19

2:56 a.m.

When I open a new file and start typing, the visual line representing the cursor starts moving further away from the place where it is actually located. I can click somewhere and the line will move there, but when I start typing it is offset again.

[Here's a Screen recording that shows the issue](https://giant.gfycat.com/FragrantGlitteringLeech.webm)

I'm using Arch Linux with xfce 4.14pre2 and the Mate-dark GTK theme, in case any of that matters.

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elextr

15 Jul 15 Jul

3:10 a.m.

More than that matters, please always provide the version of Geany, Glib and GTK (see lines near the top of Help->Debug Messages).

Also try a different font.

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terric

16 Jul 16 Jul

4:06 a.m.

...

Geany 1.35, en_US.utf8 GTK 3.24.10, GLib 2.60.5

I changed the font under Edit -> Preferences -> Interface -> Fonts from "Monospace Regular" to "Inconsolata Regular".

...

From typing a bit after this change, it seems that all weirdness with the cursor is gone and works as expected.

This solves the issue, but still leaves me with a question: Why was the cursor so weird in the first place using the default font?

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elextr

4:08 a.m.

Possibly a problem with the font data, or a bug in Pango thats triggered by the font data.

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elextr

4:08 a.m.

Closed #2217.

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Colomban Wendling

18 Jul 18 Jul

2:55 p.m.

It's quite odd that computing the caret position and the glyph position don't agree, but it might indeed be a bug in the fond itself ("monospace" generally is an alias for the default monospaced font), or how one of the component use it.

If you'd like and have time for it, it could be nice to try and debug this further. For that you should try and find out which font "monospace" resolves to (`fc-match monospace` should tell you), and report your results to [Scintilla](https://sourceforge.net/p/scintilla/bugs/), possibly after trying out whether [SciTE](https://www.scintilla.org/SciTE.html) exhibits the problem (highly likely if Geany does). Maybe more details are needed that I don't know, and maybe it's specific to your distro in which case more research might be required.

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terric

7:04 p.m.

Thanks for your detailed response! I will investigate this further and report back, if I figure something out...

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Colomban Wendling
elextr
terric