How can I get Colors of current GTK theme?

[ondoho]

Hello,
On ArchLinux, I'm trying to get the Colors of the current GTK3 theme, but without opening a gtk window.
All I want the script to do is get the colors (and possibly other style attributes), choose a few, and print them to a file. no gui stuff.
I'm confident I can handle the selection & printing to file, but how to get at the colors in the first place?

I need this for gtk3 (and i assume that i also have to use python3 for this).

I have a working draft for gtk2:

#!/usr/bin/env python2.7
# -*- coding: utf-8 -*-

import gtk

sep="============================================"

w = gtk.Window()
w.realize()
style=w.get_style()

print '''A style contains the graphics information needed by a widget to draw itself in its various states:

 STATE_NORMAL        # The state during normal operation.
 STATE_ACTIVE        # The widget is currently active, such as a button pushed
 STATE_PRELIGHT      # The mouse pointer is over the widget.
 STATE_SELECTED      # The widget is selected
 STATE_INSENSITIVE   # The widget is disabled

A style contains the following attributes:
'''

l=[gtk.STATE_NORMAL,gtk.STATE_ACTIVE,gtk.STATE_PRELIGHT,gtk.STATE_SELECTED,gtk.STATE_INSENSITIVE]

print sep,"\nbase - a list of 5 colors"
for i in l:
print "\t",style.base[i].to_string(),i

print sep,"\ntext - a list of 5 colors"
for i in l:
print "\t",style.text[i].to_string(),i

print sep,"\nfg - a list of 5 foreground colors - one for each state"
for i in l:
print "\t",style.fg[i].to_string(),i

print sep,"\nbg - a list of 5 background colors"
for i in l:
print "\t",style.bg[i].to_string(),i

print sep,"\nlight - a list of 5 colors - created during set_style() method"
for i in l:
print "\t",style.light[i].to_string(),i

print sep,"\ndark - a list of 5 colors - created during set_style() method"
for i in l:
print "\t",style.dark[i].to_string(),i

print sep,"\nmid - a list of 5 colors - created during set_style() method"
for i in l:
print "\t",style.mid[i].to_string(),i

print sep,"\ntext_aa - a list of 5 colors halfway between text/base"
for i in l:
print "\t",style.text_aa[i].to_string(),i

and here's what i came up with for gtk3 (after hours of trawling the web and trying out things):

#!/usr/bin/env python
# -*- coding: utf-8 -*-

import gi
gi.require_version('Gtk', '3.0')
from gi.repository import Gtk

win = Gtk.Window()
#~ win.connect("delete-event", Gtk.main_quit)
#~ win.show_all()
#~ Gtk.main()
style_context = win.get_style_context()
print(style_context)
print(style_context.lookup_color('bg_color')) # if this worked i'd still need to get a list of valid attributes

and it gives me this:

Output:
<Gtk.StyleContext object at 0x7f82975d0090 (GtkStyleContext at 0x130f320)>
(False, color=Gdk.RGBA(red=0.000000, green=0.000000, blue=0.000000, alpha=0.000000))

the first one is too low-level for me (ram addresses?!), the second clearly shows that i'm not getting what i'm looking for.

any help appreciated, thanks.

o.

[Larz60+]

I'm not very familiar with gtk, but found this (using pygtk and package): http://python.6.x6.nabble.com/GTK3-get-b...03859.html

looks like there's something you can use here to extract RGB values

[ondoho]

thanks!

(using pygtk and package)

afaiu pygtk is python2 and works only with gtk2.
if you look at post #1, that's what i used to implement the gtk2 solution.

for gtk3, this:

http://python.6.x6.nabble.com/GTK3-get-b...03859.html

is a little closer to what I want.

i can now get some information about gtk colors without showing a window:

#!/usr/bin/env python

import gi
gi.require_version('Gtk', '3.0')
from gi.repository import Gtk

def on_button_clicked(button, tv):
    style = tv.get_style_context()
    bgcolor = style.get_background_color(Gtk.StateType.NORMAL) 
    print(bgcolor) 

win = Gtk.Window()
vb = Gtk.VBox()
tv = Gtk.TextView()
vb.add(tv)
win.show_all()
style = tv.get_style_context()
bgcolor = style.get_background_color(Gtk.StateType.NORMAL) 
print(bgcolor)
#settings = Gtk.Settings.get_default()
#for i in settings.list_properties():
#    print(i)

this will give me reasonable color values:

Output:
Gdk.RGBA(red=0.866667, green=0.866667, blue=0.866667, alpha=1.000000)

halfway there.

if i uncomment the last 3 lines i also get a long list of gtk3 properties; but i
- don't know how to get at the values
- don't know if they're even filled with current values.

any help appreciated.

o.