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stjepan
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Joined: 02 Mar 2006
Posts: 56
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 Posted: Mon Mar 06, 2006 9:05 pm Post subject: [HOWTO] Transparency Effect |
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HOWTO: A LITTLE BUT NICE TRANSPARENCY EFFECT
Description: This effect is supported by a little program, trans-inactive. With it you can define the of active and inactive windows.
Requirements: Python, XGL and Compiz/glxcompmgr (maybe it will work with xcomposite too; needed more info about that, pls report your experiences with it)
1. You do not have to do very much because I made a configuration script which does everything.
Save this as trans-inactive-config:
| Code: | #!/usr/bin/env python
# Author: Stjepan Glavina
# Description: A script which will download, patch, configure and install trans-inactive.
import sys, os
print """
>>> Welcome to trans-inactive-config!
>>> Author of trans-inactive is Brian Tarricone.
>>> Copyright (c) 2006 Brian Tarricone <bjt23@cornell.edu>
"""
try:
print ">>> Trying to kill already running trans-inactive daemon ..."
os.system("killall trans-inactive")
print ">>> Trying to remove /tmp/trans-inactive-config/ ..."
os.system("rm -rfv /tmp/trans-inactive-config/")
os.system("mkdir /tmp/trans-inactive-config/")
print ">>> Downloading sources ..."
os.system("wget -O /tmp/trans-inactive-config/trans-inactive.c " +
"http://spuriousinterrupt.org/files/xfce4/trans-inactive.c")
f = open("/tmp/trans-inactive-config/everything_transparent.patch", "w")
f.write(
"""35c35,36
< #define INACTIVE_OPACITY (0.80 * 0xffffffff)
---
> #define INACTIVE_OPACITY (0.90 * 0xffffffff)
> #define ACTIVE_OPACITY (0.90 * 0xffffffff)
171c172
< 0xffffffff);
---
> ACTIVE_OPACITY);
224c225
< _NET_WM_WINDOW_OPACITY, 0xffffffff);
---
> _NET_WM_WINDOW_OPACITY, ACTIVE_OPACITY);
""")
f.close()
f = open("/tmp/trans-inactive-config/trans-inactive.c", "r")
content = f.readlines()
f.close()
found = False
print ">>> Applying patch: everything_transparent.patch ..."
os.system("patch -f -p0 /tmp/trans-inactive-config/trans-inactive.c " +
"/tmp/trans-inactive-config/everything_transparent.patch")
n = 0
m = 0
print ">>> Configuring ..."
while (n > 100 or n < 1):
n = input("Enter the opacity of inactive windows (1-100): ")
while (m > 100 or m < 1):
m = input("Enter the opacity of active windows (1-100): ")
buff = ""
f = open("/tmp/trans-inactive-config/trans-inactive.c", "r")
while (True):
line = f.readline()
if (not line): break
if ("#define INACTIVE_OPACITY" in line):
line = "#define INACTIVE_OPACITY (" + str(float(n)/100) + " * 0xffffffff)\n"
if ("#define ACTIVE_OPACITY" in line):
line = "#define ACTIVE_OPACITY (" + str(float(m)/100) + " * 0xffffffff)\n"
buff = buff + line
f.close()
f = open("/tmp/trans-inactive-config/trans-inactive.c", "w")
f.write(buff)
f.close()
print ">>> Compiling trans-inactive.c ..."
os.system("gcc -o /tmp/trans-inactive-config/trans-inactive " +
"/tmp/trans-inactive-config/trans-inactive.c -L/usr/X11R6/lib -lX11")
print ">>> Installing trans-inactive ..."
if (os.getuid() != 0):
while (os.system("su -c \"cp -vf /tmp/trans-inactive-config/trans-inactive " +
"/usr/bin/\"") != 0): pass
else:
os.system("cp -vf /tmp/trans-inactive-config/trans-inactive /usr/bin/")
print ">>> Cleaning up ..."
os.system("rm -rfv /tmp/trans-inactive-config/")
print ">>> Done! Now you may run trans-inactive."
except:
print "Unexpected error:", sys.exc_info()[0]
print "Please report bugs to <stjepang AT gmail DOT com>."
sys.exit(1)
|
2. Make trans-inactive-config executable:
| Code: | | chmod +x trans-inactive-config |
3. Run it:
| Code: | | ./trans-inactive-config |
4.Run trans-inactive
If you want to configure it again, repeat steps 3 and 4. Very easy, isn't it?
Enjoy!
HOW DOES IT WORK?
Trans-inactive-config works very simply. Here are it's steps:
1. Trying to kill already running trans-inactive
2. Trying to remove existing temporary files
3. Downloading sources of trans-inactive
4. Making patch
5. Patching
6. Asking user about opacity
7. Applying configuration (which is got by user in step 6)
8. Compiling
9. If you are root: installing, if you are not root: asking for the root password and installing
10. Removing temporary files made by trans-effect-config
FAQ: Why a python script for patching a *.c file??
It's there because of simplicity. You don't have to manually patch trans-inactive.c, you don't have to manually configure it,
you don't have to manually compile and install it! You just have to run it.
BUGS: While changing workspaces (cube effect) windows will look a little less opaque. I think it is because of the behaviour of opengl lights. If anyone knows how to fix that, let me know. (it's a compiz's or opengl's thing and it ins't really a bug)
WORKAROUND: (works just with switching workspaces by a keyboard shortcut, not by mouse) With transparency-fading effect you will just forgot this bug! You will not notice it if (so you will notice the bug  ) you make opacity of inactive windows just a little higher or lower than opacity of the active window. For example, using 80% and 60% is quite bad because you will notice the bug. But if you use 80% and 30%, you won't notice it!! If you don't believe me, try it yourself!
Here are the settings which I personally use:
| Code: | Enter the opacity of inactive windows (1-100): 37
Enter the opacity of active windows (1-100): 86 |
EDIT: Made configuration script, now installation and configuration are easier than ever!
Enhanced installing. Now you do not have to run trans-inactive-config as root!
Nicer output (added ">>>").
Now it puts all files in /tmp/trans-inactive-config so they are not lying in the current directory.
The config script renamed from "trans-effect-config" to "trans-inactive-config".
X.Y.Z versioning scheme instead of MMDDGGGG.
Made a bug workaround.
No need for putting the config script into a portage overlay (it's ridiculous).
Post some comments, please. How's it working?
Thanks to ElAngelo,CoffeeBuzz, Pijalu and Brian Tarricone!
Author of trans-inactive.c is Brian Tarricone.
Copyright (c) 2006 Brian Tarricone <bjt23@cornell.edu>
Last edited by stjepan on Thu Mar 09, 2006 8:10 am; edited 20 times in total |
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stjepan
n00b
Joined: 02 Mar 2006
Posts: 56
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| Posted: Tue Mar 07, 2006 9:36 am Post subject: |
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NEWS:
I made the configuration script.
To configure the transparency effect, now you just have to run trans-effect-config and start trans-inactive!
Installing part of trans-effect-config is better now. It will ask you for password if you are not running it as root.
Last edited by stjepan on Tue Mar 07, 2006 8:38 pm; edited 1 time in total |
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CoffeeBuzz
Apprentice
Joined: 15 Jun 2005
Posts: 269
Location: Canada Eh.
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| Posted: Tue Mar 07, 2006 3:29 pm Post subject: |
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I made some small edits to it to place all files in /tmp instead of working directory. I know it cleans everything up but meh, in the event somethings goes wrong the cruft remains in /tmp
Revision 48 contains an ebuild, trans-inactive that installs trans-inactive-config.py
Then just run
| Code: | | trans-inactive-config.py |
enter your preferred values and trans-inactive gets installed.
_________________
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Xgl Overlay: http://svn.xgl-coffee.org/xgl-coffee/trunk
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stjepan
n00b
Joined: 02 Mar 2006
Posts: 56
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| Posted: Tue Mar 07, 2006 8:17 pm Post subject: |
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| CoffeeBuzz wrote: | I made some small edits to it to place all files in /tmp instead of working directory. I know it cleans everything up but meh, in the event somethings goes wrong the cruft remains in /tmp
Revision 48 contains an ebuild, trans-inactive that installs trans-inactive-config.py
Then just run
| Code: | | trans-inactive-config.py |
enter your preferred values and trans-inactive gets installed. |
I modified it. Please use my original trans-inactive-config. Note that it is now "trans-inactive-config", not "trans-inactive-config.py" and versioning scheme is now different.
Please put the latest version of trans-inactive-config into your overlay. When you put it there, I will put here the howto about installing it in the emerge way.
I saw your trans-inactive-0.0.1.ebuild. Please rename the ebuild of my config script to trans-inactive-config-0.0.2.ebuild (not trans-inactive-0.0.2.ebuild!). Use these variables:
| Code: | DESCRIPTION="Wizard for configuring and installing trans-inactive, a program which makes inactive windows transparent"
KEYWORDS="~x86 ~amd64"
DEPEND="dev-lang/python"
HOMEPAGE="http://forums.gentoo.org/viewtopic-t-440763.html" |
How should ebuild work?
* downloading trans-inactive-config
* copying trans-inactive-config into /usr/bin/
* at the end, showing information about it: "To configure transparency, run trans-inactive-config blah blah something like that.... blah blah"
NEWS:
Putting files into /tmp/trans-inactive-config instead of putting them into the current directory.
Output in emerge style (">>>").
Renamed from "trans-effect-config" to "trans-inactive-config".
X.Y.Z versioning scheme instead of MMDDGGGG. (current version is 0.0.2, not 07032006)
Made a bug workaround! |
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CoffeeBuzz
Apprentice
Joined: 15 Jun 2005
Posts: 269
Location: Canada Eh.
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| Posted: Wed Mar 08, 2006 5:36 am Post subject: |
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Commited, several times... slightly intoxicated tonight me thinks.
Revision 50-something should be working. Renamed to trans-inactive-config. Added ewarn's to run the python script before launching the daemon.
_________________
HP Pavilion zd7260us
Xgl Overlay: http://svn.xgl-coffee.org/xgl-coffee/trunk
Xgl Forums: http://forums.xgl-coffee.org |
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stjepan
n00b
Joined: 02 Mar 2006
Posts: 56
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| Posted: Wed Mar 08, 2006 7:33 am Post subject: |
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| CoffeeBuzz wrote: | Commited, several times... slightly intoxicated tonight me thinks.
Revision 50-something should be working. Renamed to trans-inactive-config. Added ewarn's to run the python script before launching the daemon. |
Much better, but I noticed something in the ebuild:
| Code: | pkg_postinst(){
ewarn ""
ewarn "You must run trans-inactive-config.py to configure and" ### this line is not ok
ewarn "install the trans-inactive binary."
ewarn ""
ewarn "Then run \"trans-inactive &\" as user to enable the effects."
ewarn ""
} |
There is not "trans-inactive-config.py". It is dead! There is just "trans-inactive.config". Also see that I changed the howto a bit. There is no *.py. Also please change /usr/bin/trans-inactive-config.py to /usr/bin/trans-inactive-config. It doesn't the ".py" because it contains the "#!/usr/bin/env python" line.
Everything else with it is great. |
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CoffeeBuzz
Apprentice
Joined: 15 Jun 2005
Posts: 269
Location: Canada Eh.
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| Posted: Wed Mar 08, 2006 4:48 pm Post subject: |
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| stjepan wrote: | | CoffeeBuzz wrote: | Commited, several times... slightly intoxicated tonight me thinks.
Revision 50-something should be working. Renamed to trans-inactive-config. Added ewarn's to run the python script before launching the daemon. |
Much better, but I noticed something in the ebuild:
| Code: | pkg_postinst(){
ewarn ""
ewarn "You must run trans-inactive-config.py to configure and" ### this line is not ok
ewarn "install the trans-inactive binary."
ewarn ""
ewarn "Then run \"trans-inactive &\" as user to enable the effects."
ewarn ""
} |
There is not "trans-inactive-config.py". It is dead! There is just "trans-inactive.config". Also see that I changed the howto a bit. There is no *.py. Also please change /usr/bin/trans-inactive-config.py to /usr/bin/trans-inactive-config. It doesn't the ".py" because it contains the "#!/usr/bin/env python" line.
Everything else with it is great. |
done and done.
_________________
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Xgl Overlay: http://svn.xgl-coffee.org/xgl-coffee/trunk
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stjepan
n00b
Joined: 02 Mar 2006
Posts: 56
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| Posted: Wed Mar 08, 2006 5:57 pm Post subject: |
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| CoffeeBuzz wrote: | | done and done. |
| Code: | genbox stjepan # ACCEPT_KEYWORDS="~amd64" emerge -va trans-inactive-config
These are the packages that would be merged, in order:
Calculating dependencies... done!
[ebuild N ] x11-misc/trans-inactive-config-0.0.2 0 kB [1]
Total size of downloads: 0 kB
Portage overlays:
[1] /usr/local/xgl-coffee
Do you want me to merge these packages? [Yes/No] yes
>>> Emerging (1 of 1) x11-misc/trans-inactive-config-0.0.2 to /
>>> checksums files ;-) trans-inactive-config-0.0.2.ebuild
>>> checksums files ;-) files/digest-trans-inactive-config-0.0.2
!!! Digest verification Failed:
!!! /usr/portage/distfiles/trans-inactive-config-0.0.2.tar.bz2
!!! Reason: Filesize does not match recorded size
!!! Got: 1771
!!! Expected: 1768
genbox stjepan # |
Heheheh  ...
After doing "ebuild trans-inactive-config-0.0.2 digest" I get:
| Code: | genbox stjepan # ACCEPT_KEYWORDS="~amd64" emerge -va trans-inactive-config
These are the packages that would be merged, in order:
Calculating dependencies... done!
[ebuild R ] x11-misc/trans-inactive-config-0.0.2 0 kB [1]
Total size of downloads: 0 kB
Portage overlays:
[1] /usr/local/xgl-coffee
Do you want me to merge these packages? [Yes/No] yes
>>> Emerging (1 of 1) x11-misc/trans-inactive-config-0.0.2 to /
>>> checksums files ;-) trans-inactive-config-0.0.2.ebuild
>>> checksums files ;-) files/digest-trans-inactive-config-0.0.2
>>> checksums src_uri ;-) trans-inactive-config-0.0.2.tar.bz2
>>> Unpacking source...
>>> Unpacking trans-inactive-config-0.0.2.tar.bz2 to /var/tmp/portage/trans-inactive-config-0.0.2/work
>>> Source unpacked.
>>> Compiling source in /var/tmp/portage/trans-inactive-config-0.0.2 ...
>>> Source compiled.
>>> Test phase [not enabled]: x11-misc/trans-inactive-config-0.0.2
>>> Install trans-inactive-config-0.0.2 into /var/tmp/portage/trans-inactive-config-0.0.2/image/ category x11-misc
!!! dobin: /var/tmp/portage/trans-inactive-config-0.0.2/work/trans-inactive-config does not exist
man:
prepallstrip:
>>> Completed installing trans-inactive-config-0.0.2 into /var/tmp/portage/trans-inactive-config-0.0.2/image/
>>> Merging x11-misc/trans-inactive-config-0.0.2 to /
--- /usr/
--- /usr/bin/
>>> Safely unmerging already-installed instance...
--- !empty dir /usr/bin
--- !empty dir /usr
>>> Original instance of package unmerged safely.
*
* You must run trans-inactive-config to configure and
* install the trans-inactive binary.
*
* Then run "trans-inactive &" as user to enable the effects.
*
>>> Regenerating /etc/ld.so.cache...
>>> x11-misc/trans-inactive-config-0.0.2 merged.
>>> No packages selected for removal by clean.
>>> Auto-cleaning packages...
>>> No outdated packages were found on your system.
* GNU info directory index is up-to-date.
* IMPORTANT: 4 config files in /etc need updating.
* Type emerge --help config to learn how to update config files.
genbox stjepan #
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>>> Install trans-inactive-config-0.0.2 into /var/tmp/portage/trans-inactive-config-0.0.2/image/ category x11-misc
!!! dobin: /var/tmp/portage/trans-inactive-config-0.0.2/work/trans-inactive-config does not exist
* Whats this?
>>> Merging x11-misc/trans-inactive-config-0.0.2 to /
--- /usr/
--- /usr/bin/
* There is no /usr/bin/trans-inactive-config!
Please fix these bugs and I'll modify the howto. |
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CoffeeBuzz
Apprentice
Joined: 15 Jun 2005
Posts: 269
Location: Canada Eh.
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| Posted: Wed Mar 08, 2006 7:40 pm Post subject: |
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Interesting... I dont get that at all, what revision? I'm at 54 here.
OH OH OH ... remove the tarball from /usr/portage/distfiles and redownload it (above isnt using the right tarball).
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stjepan
n00b
Joined: 02 Mar 2006
Posts: 56
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| Posted: Wed Mar 08, 2006 9:09 pm Post subject: |
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| CoffeeBuzz wrote: | Interesting... I dont get that at all, what revision? I'm at 54 here.
OH OH OH ... remove the tarball from /usr/portage/distfiles and redownload it (above isnt using the right tarball). |
I use revision 55.
Now I get this:
| Code: | genbox stjepan # ACCEPT_KEYWORDS="~amd64" emerge -va trans-inactive-config
These are the packages that would be merged, in order:
Calculating dependencies... done!
[ebuild N ] x11-misc/trans-inactive-config-0.0.2 1 kB [1]
Total size of downloads: 1 kB
Portage overlays:
[1] /usr/local/xgl-coffee
Do you want me to merge these packages? [Yes/No] ye
>>> Emerging (1 of 1) x11-misc/trans-inactive-config-0.0.2 to /
>>> Downloading http://www.tripthelight.net/gentoo/trans-inactive-config-0.0.2.tar.bz2
--22:08:44-- http://www.tripthelight.net/gentoo/trans-inactive-config-0.0.2.tar.bz2
=> `/usr/portage/distfiles/trans-inactive-config-0.0.2.tar.bz2'
Resolving www.tripthelight.net... 208.97.133.30
Connecting to www.tripthelight.net[208.97.133.30]:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 1,768 [application/x-tar]
100%[====================================>] 1,768 --.--K/s
22:08:45 (97.34 KB/s) - `/usr/portage/distfiles/trans-inactive-config-0.0.2.tar.bz2' saved [1,768/1,768]
>>> Resuming download...
>>> Downloading http://ftp.snt.utwente.nl/pub/os/linux/gentoo/distfiles/trans-inactive-config-0.0.2.tar.bz2
--22:08:45-- http://ftp.snt.utwente.nl/pub/os/linux/gentoo/distfiles/trans-inactive-config-0.0.2.tar.bz2
=> `/usr/portage/distfiles/trans-inactive-config-0.0.2.tar.bz2'
Resolving ftp.snt.utwente.nl... 130.89.175.1, 2001:610:1908:8000::175:1
Connecting to ftp.snt.utwente.nl[130.89.175.1]:80... connected.
HTTP request sent, awaiting response... 404 Not Found
The file is already fully retrieved; nothing to do.
>>> Resuming download...
>>> Downloading http://gentoo.mirror.solnet.ch/distfiles/trans-inactive-config-0.0.2.tar.bz2
--22:08:47-- http://gentoo.mirror.solnet.ch/distfiles/trans-inactive-config-0.0.2.tar.bz2
=> `/usr/portage/distfiles/trans-inactive-config-0.0.2.tar.bz2'
Resolving gentoo.mirror.solnet.ch... 212.101.4.241
Connecting to gentoo.mirror.solnet.ch[212.101.4.241]:80... connected.
HTTP request sent, awaiting response... 404 Not Found
The file is already fully retrieved; nothing to do.
!!! Couldn't download trans-inactive-config-0.0.2.tar.bz2. Aborting.
genbox stjepan # |
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pijalu
Guru
Joined: 04 Oct 2004
Posts: 365
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| Posted: Thu Mar 09, 2006 12:06 am Post subject: |
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Nice work... but using a python script to actually patch a c file to configure opacity is a little 
So, here comes a patch to the original trans inactive to add command line parameters
| Code: |
--- trans-inactive.c.ori 2006-03-09 00:11:18.000000000 +0100
+++ trans-inactive.c 2006-03-09 00:59:40.000000000 +0100
@@ -25,14 +25,20 @@
#include <stdio.h>
#include <limits.h>
+#include <getopt.h>
+
#include <X11/X.h>
#include <X11/Xlib.h>
#include <X11/Xatom.h>
+
+float _inactive_opacity=0.8,_active_opacity=0.9;
+
/* Set this to the desired opacity of inactive windows. The example below
* sets inactive windows 80% opaque (or, equivalently, 20% transparent).
*/
-#define INACTIVE_OPACITY (0.80 * 0xffffffff)
+#define INACTIVE_OPACITY (_inactive_opacity * 0xffffffff)
+#define ACTIVE_OPACITY (_active_opacity * 0xffffffff)
static Atom
get_window_type(Display *dpy,
@@ -124,6 +130,16 @@
return 0;
}
+void
+usage(char* name) {
+ printf("USAGE:\n");
+ printf("%s [options]\n",name);
+ printf("Options:\n");
+ printf("\t-h, --help :\tThis screen...\n");
+ printf("\t-a level, --active level:\t Set active trans. level\n");
+ printf("\t-i level, --inactive level:\t Set inactive trans. level\n");
+}
+
int
main(int argc,
char **argv)
@@ -136,6 +152,59 @@
_NET_WM_WINDOW_TYPE_DESKTOP, _NET_WM_WINDOW_TYPE_DOCK, window_type;
XEvent xev;
+ /* parse arg */
+ while (0 == 0)
+ {
+ int option_index = 0;
+ int next_option;
+ static struct option long_options[] = {
+ {"help", 0, NULL, 'h'},
+ {"active", 1, NULL, 'a'},
+ {"inactive", 1, NULL, 'i'},
+ {NULL, 0, NULL, 0}
+ };
+
+ next_option =
+ getopt_long (argc, argv, "ha:i:", long_options, &option_index);
+
+ if (next_option == -1)
+ {
+ break;
+ }
+
+ switch (next_option)
+ {
+ case 'a':
+ if (optarg) {
+ if (sscanf(optarg,"%f",&_active_opacity)==EOF) {
+ fprintf(stderr,"Wrong format for active opacity\n");
+ return -1;
+ }
+ if (_active_opacity>=1)
+ _active_opacity=0.999999; /* Xgl don't like 1... */
+ }
+ break;
+ case 'i':
+ if (optarg) {
+ if (sscanf(optarg,"%f",&_inactive_opacity)==EOF) {
+ fprintf(stderr,"Wrong format for inactive opacity\n");
+ return -1;
+ }
+ if (_inactive_opacity>=1)
+ _inactive_opacity=0.999999;
+ }
+ break;
+ default:
+ usage (argv[0]);
+ return -1;
+ }
+ }
+
+ printf("Using following trans. level:\n\t %f active\n\t %f inactive\n",
+ _active_opacity,
+ _inactive_opacity);
+
+
dpy = XOpenDisplay(NULL);
if(!dpy) {
fprintf(stderr, "Failed to open display\n");
@@ -168,7 +237,7 @@
for(i = 0; i < ntoplevels; i++) {
if(toplevels[i] == old_active_window) {
set_opacity(dpy, toplevels[i], _NET_WM_WINDOW_OPACITY,
- 0xffffffff);
+ ACTIVE_OPACITY);
continue;
}
@@ -221,7 +290,7 @@
if(active_window != None) {
set_opacity(dpy, active_window,
- _NET_WM_WINDOW_OPACITY, 0xffffffff);
+ _NET_WM_WINDOW_OPACITY, ACTIVE_OPACITY);
}
old_active_window = active_window;
|
With this, you can simply lauch it with needed parameters :
| Code: |
-a level, --active level : set "level" as "active" trans value
-i level,--inactive level: set "level" as "inactive" trans value
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eg:
| Code: |
trans-inactive -a 0.9 -i 0.4
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Have phun |
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stjepan
n00b
Joined: 02 Mar 2006
Posts: 56
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| Posted: Thu Mar 09, 2006 7:32 am Post subject: |
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| pijalu wrote: | | Nice work... but using a python script to actually patch a c file to configure opacity is a little 8O |
Well, I made it because I wanted to make it to be easy to configure it. If you didn't know, before you had to manually patch it and modify.
But you did a great job, no doubt!
I personally don't like modifying foreign code too much.
Anyway, if you don't want to use my script, just use transd. If is much more powerfull than trans-inactive. I used here trans-inactive just because of simplicity :) |
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Documentation, Tips & Tricks
