Windows cascade in opacity like

tawan · 2010-10-15 08:59:48

I use this in Openbox to give a very nice effect which is great for usability and looks.

The script is by ADComp and here is how your windows look when you use it

here is the script:

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

##
#   script that uses transset-df to allow opacity to follow the focused window.
#   The focused window get opacity 1.0 while all others have opacity set by 'OPACITY'
#
#   by ADcomp <david.madbox@gmail.com>  [ http://www.ad-comp.be/ ]
#
#   This program is distributed under the terms of the GNU General Public License
#   For more info see http://www.gnu.org/licenses/gpl.txt
##

import os
import signal
import gobject
import gtk
import wnck
import re

global transset

def SigUSR1Handler(signum, frame):
    global transset
    if transset:
        transset.doquit()

CMD = 'transset-df -i'
## opacity when not active
OPACITY = 0.78
## tempo [ ms ]
TEMPO = 30

exceptions = ['^GNU Image Manipulation Program$','GIMP','VLC','Chromium','Swiftfox','Midori']

class Transset():
    def __init__(self):
        self.screen = wnck.screen_get_default()
        self.screen.force_update()
        self.update()
        self.screen.connect("active_window_changed", self.active_window_changed)

    def update(self):
        win_list = self.screen.get_windows()
        active_ws = self.screen.get_active_workspace()
        active_win = self.screen.get_active_window()

        for window in win_list:
            ## don't check window if skip tasklist
            if not window.is_skip_tasklist():
                tmp = True
                for entries in exceptions:
                    if re.search(entries,window.get_name()) != None: tmp = False
                if tmp:
                    #print window.get_name()
                    ## only window open on active workspace
                    if window.get_workspace() == active_ws:
                        if window == active_win:
                            ## remove transparency
                            cmd = "%s %s 1" % ( CMD, window.get_xid() )
                        else:
                            ## set transparency
                            cmd = "%s %s %s" % ( CMD, window.get_xid(), OPACITY )
                        os.system(cmd)
        return False

    def clean(self):
        win_list = self.screen.get_windows()
        for window in win_list:
            ## don't check window if skip tasklist
            if not window.is_skip_tasklist():
                cmd = "%s %s 1" % ( CMD, window.get_xid() )
                os.system(cmd)

    def active_window_changed(self, screen, window):
        gobject.timeout_add(TEMPO, self.update)

    def doquit(self, widget=None, data=None):
        self.clean()
        gtk.main_quit()

    def run(self):
        gtk.main()

#-------------------------
if __name__ == "__main__":
#-------------------------
    global transset
    transset = None
    signal.signal(signal.SIGUSR1, SigUSR1Handler)
    transset = Transset()
    transset.run()

Automatically as you load a new window, terminal or program the other things on screen fade back one step. Sweet.

ctruett · 2010-10-15 18:19:57

Thanks! I'll most likely use this! I have been looking for a way to automate transparency, and this should do the trick :]

Alm · 2010-10-16 17:39:41

Great! This little thing rocks
Thank you tawan!

karabaja4 · 2010-10-16 19:01:10

Extremely nice, thanks!

Unia · 2010-10-23 18:38:45

I can't seem to get this working. When I run the script it gives me these errors:

[jente@Lappy .scripts]$ ./inactivetrans.sh
Traceback (most recent call last):
  File "./inactivetrans.sh", line 16, in <module>
    import gobject
ImportError: No module named gobject

Also for import wtk, import wnck and import re.

When I comment those out, it gives me this error:

[jente@Lappy .scripts]$ ./inactivetrans.sh
Traceback (most recent call last):
  File "./inactivetrans.sh", line 91, in <module>
    transset = Transset()
  File "./inactivetrans.sh", line 38, in __init__
    self.screen = wnck.screen_get_default()
NameError: global name 'wnck' is not defined

Am I missing some dependencies? Thanks in advance

skunktrader · 2010-10-23 18:40:57

What happens if you change the first line from

#!/usr/bin/python

to

#!/usr/bin/python2

Unia · 2010-10-23 18:43:22

That also gives me

ImportError: No module named wnck

Strangely though, it now doesn't show

ImportError: No module named gobject

skunktrader · 2010-10-23 18:49:22

Do you have the package called "python-wnck" installed?

Unia · 2010-10-23 18:53:41

I have now. It doesn't throw those errors at me now anymore, it gives me these instead:

sh: transset-df: command not found

EDIT: I do have transset installed.
EDIT2: I changed transset-df to transset -df. The error is gone but my mouse cursor stays on the transset crosshair - had to reboot.

Last edited by Unia (2010-10-23 18:58:51)

skunktrader · 2010-10-23 19:05:16

Try installing the package called "transset-df"

Unia · 2010-10-23 19:11:33

Thanks, that did the trick.

Last edited by Unia (2010-10-23 19:12:46)

tawan · 2010-10-23 22:16:13

Sorry I should have raised all of those points in the first post but glad you got it working.

Arch Linux

#1 2010-10-15 08:59:48

Windows cascade in opacity like

#2 2010-10-15 18:19:57

Re: Windows cascade in opacity like

#3 2010-10-16 17:39:41

Re: Windows cascade in opacity like

#4 2010-10-16 19:01:10

Re: Windows cascade in opacity like

#5 2010-10-23 18:38:45

Re: Windows cascade in opacity like

#6 2010-10-23 18:40:57

Re: Windows cascade in opacity like

#7 2010-10-23 18:43:22

Re: Windows cascade in opacity like

#8 2010-10-23 18:49:22

Re: Windows cascade in opacity like

#9 2010-10-23 18:53:41

Re: Windows cascade in opacity like

#10 2010-10-23 19:05:16

Re: Windows cascade in opacity like

#11 2010-10-23 19:11:33

Re: Windows cascade in opacity like

#12 2010-10-23 22:16:13

Re: Windows cascade in opacity like

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