zenity:

[lilass.git] / gui.py

diff --git a/gui.py b/gui.py
index 25f71c2e7c28fc1c477cd07182fa19d65a3f0a99..7c9979d86fdf61905b1f601dbb556b2d7c9de1cd 100644 (file)
--- a/gui.py
+++ b/gui.py
@@ -17,14 +17,27 @@
 
 # This file abstracts GUI stuff away, so that the actual dsl.py does not have to deal with it
 import sys
-from PyQt4 import QtGui
-from qt_dialogue import PositionSelection
-app = QtGui.QApplication(sys.argv)
+
+qt_available = True
+try:
+       from PyQt4 import QtGui
+       from qt_dialogue import PositionSelection
+       app = QtGui.QApplication(sys.argv)
+except Exception, e:
+       import subprocess
+       from zenity_dialogue import run as zenity_run
+       qt_available = False
 
 def error(message):
        '''Displays a fatal error to the user'''
-       QtGui.QMessageBox.critical(None, 'Fatal error', message)
+       if qt_available:
+               QtGui.QMessageBox.critical(None, 'Fatal error', message)
+       else:
+               subprocess.Popen(["zenity", "--error", "--text="+message], stdout=subprocess.PIPE)
 
 def setup(internalResolutions, externalResolutions):
        '''Returns a ScreenSetup instance, or None if the user canceled'''
-       return PositionSelection(internalResolutions, externalResolutions).run()
+       if qt_available:
+               return PositionSelection(internalResolutions, externalResolutions).run()
+       else:
+               return zenity_run(internalResolutions, externalResolutions)