enable real transparency in urxvt with compton

diff --git a/Xdefaults.in b/Xdefaults.in
index 9ecdaaed7e4f925b2f45fe0c3c2f6afa4cf1c19e..f2938b4ad66ecf9200b942888a9c76a06a47b9d4 100644 (file)
--- a/Xdefaults.in
+++ b/Xdefaults.in
@@ -5,7 +5,7 @@
 ! "Term" is an alias for all supported terminal emulators; it is automatically
 ! replaced by setup.sh.
 
-! Copyright (C) 2011-2012  Simon Ruderich
+! Copyright (C) 2011-2014  Simon Ruderich
 !
 ! This file is free software: you can redistribute it and/or modify
 ! it under the terms of the GNU General Public License as published by
@@ -26,6 +26,14 @@ Term*foreground:  #cccccc
 Term*background:  #000000
 Term*cursorColor: #ffff66
 
+! Special case for urxvt to get transparent background. This requires a
+! compositing manager which supports transparency like compton. Thanks to eto
+! and adaedra in #herblstuftwm on Freenode (2014-05-04 15:50 ff) for their
+! awesome help regarding transparency.
+Rxvt*background: [90]#000000
+! Necessary for transparency, see man page.
+Rxvt*depth: 32
+
 ! Disable the scrollback buffer. I use screen/tmux so it is not necessary.
 XTerm*saveLines: 0
 Rxvt*saveLines:  0
@@ -41,9 +49,9 @@ XTerm.termName: xterm-256color
 ! #stumpwm on Freenode (2009-05-18 22:05).
 !XTerm*allowSendEvents: true
 
-! Enable transparency.
-Rxvt*transparent: true
-Rxvt*shading:     10
+! Enable pseudo transparency. Only used if compton is not available.
+!NO_COMPTON Rxvt*transparent: true
+!NO_COMPTON Rxvt*shading:     10
 
 ! Do not use any perl extension scripts.
 Rxvt*perl-ext-common:

diff --git a/setup.sh b/setup.sh
index 45a469bc5ab12d8341d7b92a54e920d3ad67c6a6..9e330d1231dfea8c5c39ff2f1b6824c58af08925 100755 (executable)
--- a/setup.sh
+++ b/setup.sh
@@ -52,6 +52,13 @@ if installed X; then
          }'
     # Xdefaults uses ! as comment instead of #.
     sed_i 's/^#/!/' Xdefaults
+    # Use urxvt's pseudo-transparency if compton is not available. Better than
+    # nothing.
+    if ! installed compton; then
+        echo 'Xdefaults: no compton found, enabling pseudo-transparency'
+        sed_i 's/^Rxvt\*background/!&/' Xdefaults
+        sed_i 's/^!NO_COMPTON //' Xdefaults
+    fi
 
     if test ! "x`os`" = xdarwin; then
         link xinitrc ~/.xinitrc

diff --git a/xinitrc b/xinitrc
index 387614d1288a7d079fcfa7a7418c8a31f7f490a5..858cbaa1320ab6500fa184f000bbfa10b2a65738 100755 (executable)
--- a/xinitrc
+++ b/xinitrc
@@ -144,6 +144,12 @@ elif test -n "$screen_lock_force"; then
     error "'xautolock' not found. Auto lock won't work!"
 fi
 
+# Use compton to get transparent windows. See ~/.Xdefaults for configuration
+# of urxvt.
+if installed compton; then
+    compton &
+fi
+
 
 # My window managers doesn't start a terminal emulator on its own, start one
 # when I login.