move QtFrontend to the Qt dialogue

[lilass.git] / gui.py

diff --git a/gui.py b/gui.py
index c1f045d6c1d5ecdeae46f46307c821aaa73f9386..4847668630baea6c0642a1eac74ea47e5ea32f30 100644 (file)
--- a/gui.py
+++ b/gui.py
@@ -16,7 +16,6 @@
 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 
 # This file abstracts GUI stuff away, so that the actual dsl.py does not have to deal with it
-import sys
 
 '''
 This module implements two functions:
@@ -29,64 +28,13 @@ def setup(internalResolutions, externalResolutions):
     The user should be asked about his display setup preferences.
     The function returns None if the user cancelled, and an instance of dsl.ScreenSetup otherwise.
 '''
-import subprocess, collections
+import collections
 
-# Qt frontend
-class QtFrontend:
-    def __init__(self):
-        from PyQt4 import QtGui
-        self.app = QtGui.QApplication(sys.argv)
-        print("Qt loaded")
-    
-    def error(self, message):
-        from PyQt4 import QtGui
-        QtGui.QMessageBox.critical(None, 'Fatal error', message)
-    
-    def setup(self, situation):
-        from qt_dialogue import PositionSelection
-        return PositionSelection(situation).run()
-    
-    @staticmethod
-    def isAvailable():
-        try:
-            import PyQt4
-            return True
-        except ImportError:
-            return False
+from qt_frontend import QtFrontend
+from cli_frontend import CLIFrontend
+from zenity_frontend import ZenityFrontend
 
 
-# Zenity frontend
-class ZenityFrontend:
-    def error(message):
-        '''Displays a fatal error to the user'''
-        subprocess.check_call(["zenity", "--error", "--text="+message])
-    
-    def setup(self, situation):
-        from zenity_dialogue import run
-        return run(situation.internalResolutions(), situation.externalResolutions())
-    
-    @staticmethod
-    def isAvailable():
-        try:
-            from dsl import processOutputIt
-            processOutputIt("zenity", "--version")
-            return True
-        except Exception:
-            return False
-
-
-# CLI frontend
-class CLIFrontend:
-    def error(self, message):
-        print(message, file=sys.stderr)
-    
-    def setup(self, internalResolutions, externalResolutions, commonRes):
-        raise Exception("Choosing the setup interactively is not supported with the CLI frontend")
-    
-    @staticmethod
-    def isAvailable():
-        return True
-
 # list of available frontends
 frontends = collections.OrderedDict()
 frontends["qt"] = QtFrontend
@@ -100,8 +48,10 @@ def getFrontend(name = None):
         if name in frontends:
             if frontends[name].isAvailable():
                 return frontends[name]() # call constructor
-        # frontend not found or not available
-        raise Exception("Frontend %s not found or not available" % name)
+            else:
+                raise Exception("Frontend %s not available" % name)
+        # frontend not found
+        raise Exception("Frontend %s not found" % name)
     # auto-detect
     for frontend in frontends.values():
         if frontend.isAvailable():