Bring back support for forcing fake transparency. Closes LP#702917

doc/terminator_config.5

@@ -86,6 +86,10 @@ Default value: \fBFalse\fR
 Path to a program which accepts a URI as an argument and does something relevant with it. This option is ignored unless 'use_custom_url_handler' is set to True.
 Default value: unset
 .TP
+.B disable_real_transparency \fR(string)
+If this is set to True, Terminator will never try to use 'real' transparency if your windowing environment supports it. Instead it will use 'fake' transparency where a background image is shown, but other windows are not.
+Default value: False
+.TP
 .B title_transmit_fg_color
 Sets the colour of the text shown in the titlebar of the active terminal.
 Default value: \fB'#FFFFFF'\fR

terminatorlib/config.py

@@ -93,6 +93,7 @@ DEFAULTS = {
             'try_posix_regexp'      : platform.system() != 'Linux',
             'use_custom_url_handler': False,
             'custom_url_handler'    : '',
+            'disable_real_transparency' : False,
             'title_hide_sizetext'   : False,
             'title_transmit_fg_color' : '#ffffff',
             'title_transmit_bg_color' : '#c80003',

terminatorlib/terminal.py

@@ -680,7 +680,7 @@ class Terminal(gtk.VBox):
         # This is quite hairy, but the basic explanation is that we should
         # set_background_transparent(True) when we have no compositing and want
         # fake background transparency, otherwise it should be False.
-        if not self.composite_support:
+        if not self.composite_support or self.config['disable_real_transparency']:
             # We have no compositing support, fake background only
             background_transparent = True
         else: