--- /dev/null
+#!/usr/bin/python3
+# DSL - easy Display Setup for Laptops
+# Copyright (C) 2012-2015 Ralf Jung <post@ralfj.de>
+#
+# 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.
+
+import argparse, sys, os, re, subprocess
+from enum import Enum
+import gui, screen
+frontend = gui.getFrontend("cli") # the fallback, until we got a proper frontend. This is guaranteed to be available.
+
+
+# for auto-config: common names of internal connectors
+commonInternalConnectorPrefixes = ['LVDS', 'eDP']
+commonInternalConnectorSuffices = ['', '0', '1', '-0', '-1']
+def commonInternalConnectorNames():
+ for prefix in commonInternalConnectorPrefixes:
+ for suffix in commonInternalConnectorSuffices:
+ yield prefix+suffix
+
+
+# Load a section-less config file: maps parameter names to space-separated lists of strings (with shell quotation)
+def loadConfigFile(filename):
+ import shlex
+ result = {}
+ if not os.path.exists(filename):
+ return result # no config file
+ # read config file
+ linenr = 0
+ with open(filename) as f:
+ for line in f:
+ linenr += 1
+ line = line.strip()
+ if not len(line) or line.startswith("#"): continue # skip empty and comment lines
+ try:
+ # parse line
+ pos = line.index("=") # will raise exception when substring is not found
+ curKey = line[:pos].strip()
+ result[curKey] = shlex.split(line[pos+1:]) # shlex.split also strips
+ except Exception:
+ raise Exception("Invalid config, line %d: Error parsing line (may be a quoting issue)." % linenr)
+ # add some convencience get functions
+ return result
+
+
+# Make sure the backlight is turned on
+def turnOnBacklight():
+ try:
+ backlight = float(subprocess.check_output(["xbacklight", "-get"]).strip())
+ if backlight == 0: # it's completely turned off, we better enable it
+ subprocess.check_call(["xbacklight", "-set", "100"])
+ except FileNotFoundError:
+ print("xbacklight has not been found, unable to turn your laptop backlight on.")
+ except subprocess.CalledProcessError:
+ print("xbacklight returned an error while attempting to turn your laptop backlight on.")
+
+
+# return the current sceen situation, using the configuration to control connecor detection
+def situationByConfig(config):
+ # internal connectors
+ if 'internalConnector' in config:
+ if len(config['internalConnector']) != 1:
+ raise Exception("You must specify exactly one internal connector.")
+ internalConnectors = config['internalConnector']
+ else:
+ internalConnectors = commonInternalConnectorNames()
+ # run!
+ return screen.ScreenSituation(internalConnectors, config.get('externalConnectors'))
+
+
+# if we run top-level
+if __name__ == "__main__":
+ try:
+ # how do we filter the RelativeScreenPosition for the CLI?
+ relPosFilter = str.lower
+
+ # parse command-line arguments
+ parser = argparse.ArgumentParser(description='easy Display Setup for Laptops')
+ parser.add_argument("-f", "--frontend",
+ dest="frontend",
+ help="The frontend to be used for user interaction")
+ parser.add_argument("-r", "--relative-position",
+ dest="rel_position", choices=list(map(relPosFilter, screen.RelativeScreenPosition.__members__.keys())),
+ help="Set the position of external screen relative to internal one.")
+ parser.add_argument("-e", "--external-only",
+ dest="external_only", action='store_true',
+ help="If an external screen is connected, disable all the others.")
+ parser.add_argument("-i", "--internal-only",
+ dest="internal_only", action='store_true',
+ help="Enable internal screen, disable all the others.")
+ cmdArgs = parser.parse_args()
+
+ # load frontend early (for error mssages)
+ frontend = gui.getFrontend(cmdArgs.frontend)
+
+ # load configuration
+ config = loadConfigFile(os.getenv('HOME') + '/.dsl.conf')
+
+ # see what situation we are in
+ situation = situationByConfig(config)
+
+ # construct the ScreenSetup
+ setup = None
+ if not cmdArgs.internal_only and situation.externalResolutions() is not None:
+ # there's an external screen connected that we may want to use
+ if cmdArgs.external_only:
+ setup = screen.ScreenSetup(intResolution = None, extResolution = situation.externalResolutions()[0])
+ elif cmdArgs.rel_position is not None:
+ # construct automatically, based on CLI arguments
+ # first, figure out the desired RelativeScreenPosition... waht a bad hack...
+ relPos = list(filter(lambda relPosItem: relPosFilter(relPosItem[0]) == cmdArgs.rel_position, screen.RelativeScreenPosition.__members__.items()))
+ assert len(relPos) == 1, "CLI argument is ambigue"
+ relPos = relPos[0][1]
+ # now we construct the ScreenSetup
+ if relPos == screen.RelativeScreenPosition.MIRROR:
+ res = situation.commonResolutions()[0]
+ setup = screen.ScreenSetup(res, res, relPos)
+ else:
+ setup = screen.ScreenSetup(intResolution = situation.internalResolutions()[0], extResolution = situation.externalResolutions()[0], relPosition = relPos)
+ else:
+ # ask the user
+ setup = frontend.setup(situation)
+ if setup is None: sys.exit(1) # the user canceled
+ else:
+ # use first resolution of internal connector
+ setup = screen.ScreenSetup(intResolution = situation.internalResolutions()[0], extResolution = None)
+
+ # call xrandr
+ xrandrCall = situation.forXrandr(setup)
+ print("Call that will be made:",xrandrCall)
+ subprocess.check_call(xrandrCall)
+
+ # make sure the internal screen is really, *really* turned on if there is no external screen
+ if setup.extResolution is None:
+ turnOnBacklight()
+ except Exception as e:
+ frontend.error(str(e))
+ raise
projects / lilass.git / blobdiff