On 15-03-15 10:40 AM, Roger Davis wrote:

Hi all,

Thanks to Jim Charlton for the nice fix (or workaround) on the context menu problem! I've had a MacOS menu problem for some time which may be related to this, but as it's a bit off-topic re: the context menu thread I've started a new thread here.

My MacOS gtk3 menus have no borders whatsoever, a rather annoying graphics glitch. This includes menus built-in to gtk3 widgets (e.g., made from gtk_combo_box_text_new()) as well as those made directly by me via gtk_menu_new(). The same menus look fine under CentOS.

I'm using a perhaps unusual gtk3 setup under MacOS (although it does seem like many folks' MacOS gtk3 installs are unique). I am running the XQuartz backend with a very minimal gnome environment. I set XDG_CONFIG_HOME to reference my own private settings.ini file with the contents

gtk-application-prefer-dark-theme = false
gtk-theme-name = Adwaita
gtk-icon-theme-name = Adwaita
gtk-font-name = Cantarell 12

This at least solved a recent font problem of mine (see the Feb. 2015 'gtk3 (GtkTextView) and MacOS' thread), so it seems to be doing something useful, and my shadowless menu issue pre-dates use of this file so it's not the source of the current problem. However, I'm not sure how to make any use of Jim's shadow-removing workaround to *add* shadows to my menus, since:

(1) It seems that shadowed menus are supposed to be default bahavior, but I'm not getting shadows despite having done nothing to disable them.

(2) My /opt/local/share/themes/Adwaita/gtk-3.0/gtk.css contains only the comment line

/* Adwaita is the default theme of GTK+ 3, this file is not used */

implying there's nothing I can add there that will make the slightest bit of difference anyway.

Of course, probably I should just be grateful that I don't suffer from the MacOS context menu sensitivity problem and leave well enough alone!

Does anyone have any ideas? Thanks!

Roger Davis
Univ. of Hawaii

From: Jim Charlton <char...@gmail.com>
To: gtk-app-devel-list@gnome.org
Subject: Re: Fwd: Gtk3 MacOS (OSX) context menu issues

To answer part of my own question.... I am using my own gtk3 theme
rather than the compiled Adwaita theme that comes with Gtk3.  I set the
environment variable XDG_CONFIG_HOME (export
XDG_CONFIG_HOME=/opt/local/share/themes/Adwaita/gtk-3.0), edited
/opt/local/share/themes/Adwaita/gtk-3.0/gtk.css to "@import
url("gtk-main.css");" and then edit
/opt/local/share/themes/Adwaita/gtk-3.0/gtk-main.css to customize the
theme. (careful... your theme directory may be elsewhere, depending on
how you installed Gtk3).

To cure the context menu problem, I eliminated the margin on popup
windows by adding

.window-frame:backdrop {
  box-shadow: none;
  margin: 0;}

to the end of the gtk.css file. Without the margin box the selection problem seems to go away.

This is not a cure... but perhaps a useful work-around! The inspiration for this idea comes from https://forum.xfce.org/viewtopic.php?pid=36005.

HI Roger:

My experience has been that I can set the XDG_CONFIG_HOME environment variable to the path to the gtk-3.0 directory (eg. /opt/local/share/themes/Default) and then put both the gtk.css and the settings.ini file in the /opt/local/share/themes/Default/gtk-3.0/ directory. When a gtk3 application is run, both files will be processed. You can put css into the gtk.css file and it seems to override the in-line (compiled?) theme data. If you do figure out how to put shadowed margins on the menus, let us know if it brings back the item selection problem.

jim...   Jim Charlton
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