1025966 - gtk themed checkboxes and radio buttons aren't scaled by layout.css.devPixelsPerPx pref

Status: RESOLVED INVALID

(Core :: Widget: Gtk, defect)

Description

[Jason Orendorff [:jorendorff]]

I have the pref explicitly set to 1.75 and checkboxes are tiny, which is visually rather cute and whimsical, but aiming at the things becomes a chore...

Ted and Gijs pointed me at this code:
http://mxr.mozilla.org/mozilla-central/source/widget/gtk/nsNativeThemeGTK.cpp?force=1

Comment 1

[Jason Orendorff [:jorendorff]]

Even changing the zoom with Ctrl-+ doesn't affect checkboxes.

Comment 2

[Jason Orendorff [:jorendorff]]

Attachment: tiny-checkboxes.png

Comment 3

[Andrew Overholt [:overholt]]

Attachment: comparison of devPixelsPerPx=-1 and 2

I've been meaning to file this forever.

Here's a comparison of what I see between stock and setting devPixelsPerPx=2.  The checkboxes and radio buttons are the same size in both.

Comment 4

[Karl Tomlinson (:karlt)]

Native widgets are intentionally drawn as indicated by the GTK2 theme.  If not, then a theme providing appropriate widgets for GTK2 apps on high dpi monitors would have extra large widgets in Gecko apps.  However, I don't know whether any such themes exist and GTK2 themes are obsoleted by GTK3.

GTK3 addresses this without needing a high dpi theme through its scaling factor, but bug 1144745 tracks handling that properly.

Comment 5

[Jim Mathies [:jimm]]

We're using GTK3, per comment 4 closing this out.