#!/usr/bin/python
# DSL - easy Display Setup for Laptops
+# Copyright (C) 2012 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 (gpl.txt); if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
import os, sys, re, subprocess
from PyQt4 import QtGui
from selector_window import PositionSelection
app = QtGui.QApplication(sys.argv)
+# for auto-config: common names of internal connectors
+commonInternalConnectorNames = ['LVDS', 'LVDS1', 'LVDS-0']
+
# Load a section-less config file: maps parameter names to space-separated lists of strings (with shell quotation)
def loadConfigFile(file):
import shlex
+ result = {}
+ if not os.path.exists(file):
+ return result # no config file
# read config file
linenr = 0
with open(file) as file:
- result = {}
for line in file:
linenr += 1
line = line.strip()
# parse line
pos = line.index("=") # will raise exception when substring is not found
curKey = line[:pos].strip()
- value = line[pos+1:]
- result[curKey] = shlex.split(value)
+ result[curKey] = shlex.split(line[pos+1:]) # shlex.split also strips
except Exception:
raise Exception("Invalid config, line %d: Error parsing line (quoting issue?)" % linenr)
# add some convencience get functions
connectors = {} # map of connector names to a list of resolutions
connector = None # current connector
for line in p.stdout:
+ # ignore screens
+ if line.startswith("Screen"):
+ continue
# new connector?
- m = re.search(r'^([\w]+) connected ', line)
+ m = re.search(r'^([\w\-]+) (dis)?connected ', line)
if m is not None:
connector = m.groups()[0]
assert connector not in connectors
strRatio = '16:%d' % ratio
return '%dx%d (%s)' %(w, h, strRatio)
-def findAvailableConnector(tryConnectors, availableConnectors):
+def findAvailableConnector(tryConnectors):
for connector in tryConnectors:
- if connector in availableConnectors: return connector
+ if connector in connectors and connectors[connector]: # if the connector exists and is active (i.e. there is a resolution)
+ return connector
return None
-# load options
-config = loadConfigFile(os.getenv('HOME') + '/.dsl.conf')
-if len(config['internalConnector']) != 1:
- raise Exception("You must specify exactly one internal connector")
-if len(config['externalConnectors']) < 1:
- raise Exception("You must specify at least one external connector")
-# use options
-internalConnector = config['internalConnector'][0]
-externalConnectors = config['externalConnectors']
+# load connectors and options
connectors = getXrandrInformation()
-usedExternalConnector = findAvailableConnector(externalConnectors, connectors) # *the* external connector which is actually used
+config = loadConfigFile(os.getenv('HOME') + '/.dsl.conf')
+# find internal connector
+if 'internalConnector' in config:
+ if len(config['internalConnector']) != 1:
+ raise Exception("You must specify exactly one internal connector")
+ internalConnector = config['internalConnector'][0]
+ if not internalConnector in connectors:
+ raise Exception("Connector %s does not exist, there is an error in your config file" % internalConnector)
+else:
+ # auto-config
+ internalConnector = findAvailableConnector(commonInternalConnectorNames)
+ if internalConnector is None:
+ raise Exception("Could not automatically find internal connector, please use ~/.dsl.conf to specify it manually")
+# all the rest is external then, obviously - unless the user wants to do that manually
+if 'externalConnectors' in config:
+ externalConnectors = config['externalConnectors']
+ for connector in externalConnectors:
+ if not connector in connectors:
+ raise Exception("Connector %s does not exist, there is an error in your config file" % internalConnector)
+else:
+ externalConnectors = connectors.keys()
+ externalConnectors.remove(internalConnector)
+if not externalConnectors:
+ raise Exception("No external connector found - either your config is wrong, or your machine has only one connector")
# default: screen off
args = {} # maps connector names to xrand arguments
args[c] = ["--off"]
# Check what to do
+usedExternalConnector = findAvailableConnector(externalConnectors) # *the* external connector which is actually used
if usedExternalConnector is not None: # there's an external screen connected, we need to ask what to do
internalResolutions = connectors[internalConnector]
externalResolutions = connectors[usedExternalConnector]
projects / lilass.git / blobdiff