updated zenity frontend, added cli frontend

[lilass.git] / question_frontend.py

diff --git a/question_frontend.py b/question_frontend.py
new file mode 100644 (file)
index 0000000..4782ba1
--- /dev/null
+++ b/question_frontend.py
@@ -0,0 +1,81 @@
+# DSL - easy Display Setup for Laptops
+# Copyright (C) 2012      Ralf Jung <post@ralfj.de>
+# Copyright (C) 2012-2015 Constantin Berhard<constantin@exxxtremesys.lu>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+
+from screen import RelativeScreenPosition, ScreenSetup, processOutputIt
+
+from enum import Enum
+
+class OperationMode(Enum):
+    INTERNAL_ONLY = ("Use internal display only")
+    EXTERNAL_ONLY = ("Use external display only")
+    USE_BOTH      = ("Use both displays")
+    def __init__(self, text):
+        # auto numbering
+        cls = self.__class__
+        self._value_ = len(cls.__members__)
+        # description
+        self.text = text
+
+class QuestionFrontend:
+    def userChoose (self, title, choices, returns, fallback):
+        raise Exception("The abstract method 'userChoose' has not been implemented by %s"%str(self.__class__))
+    def selectResolution(self, displayname, availablemodes):
+        modedescs = list(map(str, availablemodes))
+        return self.userChoose("Select resolution for %s"%displayname, modedescs, availablemodes, None)
+    def setup (self, situation):
+        operationmodes = list(OperationMode)
+        operationmodedescs = list(map(lambda x: x.text, operationmodes))
+        operationmode = self.userChoose ("Display setup", operationmodedescs, operationmodes, None)
+        if operationmode is None:
+            return None
+        elif operationmode is OperationMode.INTERNAL_ONLY:
+            intres = self.selectResolution("the internal screen", situation.internalResolutions())
+            if intres is None:
+                return None
+            else:
+                return ScreenSetup(intres, None, None, False)
+        elif operationmode is OperationMode.EXTERNAL_ONLY:
+            extres = self.selectResolution("the external screen", situation.externalResolutions())
+            if extres is None:
+                return None
+            else:
+                return ScreenSetup(None, extres, None, True)
+        else:
+            assert operationmode is OperationMode.USE_BOTH
+            relscrpositions = list(RelativeScreenPosition)
+            relscrdescs = list(map(lambda x: x.text+" internal screen", relscrpositions))
+            relpos = self.userChoose ("Position of external screen", relscrdescs, relscrpositions, None)
+            if relpos == None:
+                return None
+            elif relpos == RelativeScreenPosition.MIRROR:
+                # for mirroring only ask for common resolutions
+                commonres = self.selectResolution("both screens", situation.commonResolutions())
+                if commonres is None:
+                    return None
+                return ScreenSetup(commonres,commonres,relpos,False)
+            # select resolutions independently
+            intres = self.selectResolution("the internal screen", situation.internalResolutions())
+            if intres is None:
+                return None
+            extres = self.selectResolution("the external screen", situation.externalResolutions())
+            if extres is None:
+                return None
+            extprim = self.userChoose("Select primary screen", ["Internal screen is primary","External screen is primary"], [False,True], None)
+            if extprim is None:
+                return None
+            return ScreenSetup(intres,extres,relpos,extprim)