'''
import subprocess, collections
+from question_frontend import QuestionFrontend
+from screen import processOutputIt
+
# Qt frontend
class QtFrontend:
def __init__(self):
# Zenity frontend
-class ZenityFrontend:
- def error(message):
+class ZenityFrontend(QuestionFrontend):
+ def error(self, 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 userChoose (self, title, choices, returns, fallback):
+ assert len(choices) == len(returns)
+ args = ["zenity", "--list", "--text="+title, "--column="]+choices
+ switch = dict (list(zip (choices,returns)))
+ try:
+ for line in processOutputIt(*args):
+ return switch.get(line.strip(), fallback)
+ except Exception:
+ # on user cancel, the return code of zenity is nonzero
+ return fallback
+ # if the output was empty
+ return fallback
def isAvailable():
try:
- from screen import processOutputIt
processOutputIt("zenity", "--version")
return True
- except Exception:
+ except FileNotFoundError:
+ return False
+ except PermissionError:
return False
-
# CLI frontend
-class CLIFrontend:
+class CLIFrontend(QuestionFrontend):
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")
-
+
+ def userChoose (self, title, choices, returns, fallback):
+ while True:
+ # print question
+ print(title)
+ for i in range(len(choices)):
+ print("%d. %s"%(i,choices[i]))
+ print("Enter 'c' to cancel.")
+ # handle input
+ answer = input("> ")
+ if answer == "c":
+ return None
+ #else
+ try:
+ answerint = int(answer)
+ if answerint >= 0 and answerint < len(choices):
+ return returns[answerint]
+ except ValueError:
+ pass
+ # if we are here something invalid was entered
+ print("INVALID ANSWER: '%s'" % answer)
+
@staticmethod
def isAvailable():
return True
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():
--- /dev/null
+# 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)
+++ /dev/null
-# 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
-
-def userChoose (title, choices, returns, fallback):
- assert len(choices) == len(returns)
- args = ["zenity", "--list", "--text="+title, "--column="]+choices
- switch = dict (list(zip (choices,returns)))
- try:
- for line in processOutputIt(*args):
- return switch.get(line.strip(), fallback)
- except Exception:
- # on user cancel, the return code of zenity is nonzero
- return fallback
- return fallback
-
-def run (internalResolutions, externalResolutions):
- relpos = userChoose ("Position of external screen", ["Left of internal screen", "Right of internal screen"], [RelativeScreenPosition.LEFT, RelativeScreenPosition.RIGHT], None)
- if relpos == None:
- return None
- intres = internalResolutions[0]
- extres = externalResolutions[0]
- extprim = True
- extres = userChoose ("external display resolution", list(map(str,externalResolutions)), externalResolutions, None)
- if extres == None:
- return None
- if extprim == None:
- extprim = userChoose ("Which display should be the primary display?", ["internal display", "external display"], [False, True], None)
- if extprim == None:
- return None
- return ScreenSetup(intres, extres, relpos, extIsPrimary = extprim)
projects / lilass.git / commitdiff