X-Git-Url: https://git.ralfj.de/lilass.git/blobdiff_plain/4a96a6beedb82ccb2df60a1b358e5ff7741a0191..06344a9d0c2cbd40023d1db4ab966c0577234049:/screen.py diff --git a/screen.py b/screen.py index 9942e98..6ba9418 100644 --- a/screen.py +++ b/screen.py @@ -44,8 +44,10 @@ class RelativeScreenPosition(Enum): def __init__(self, text): # auto numbering cls = self.__class__ - self._value_ = len(cls.__members__) + self._value_ = len(cls.__members__) + 1 self.text = text + def __str__(self): + return self.text class Resolution: '''Represents a resolution of a screen''' @@ -53,6 +55,24 @@ class Resolution: self.width = width self.height = height + @classmethod + def fromDatabase(cls, dbstr): + if dbstr is None: + return None + parts = dbstr.split("x") + if len(parts) != 2: + raise ValueError(xrandrstr) + return Resolution(*map(int,parts)) + + def forDatabase(self): + return str(self.width)+'x'+str(self.height) + + def forXrandr(self): + return self.forDatabase() + + def toTuple(self): + return (self.width, self.height) + def __eq__(self, other): if not isinstance(other, Resolution): return False @@ -80,9 +100,6 @@ class Resolution: def pixelCount(self): return self.width * self.height - - def forXrandr(self): - return str(self.width)+'x'+str(self.height) class ScreenSetup: @@ -123,32 +140,59 @@ class ScreenSetup: RelativeScreenPosition.MIRROR: '--same-as', }[self.relPosition], intName] return args + + def __str__(self): + if self.intResolution is None: + return "External display only, at "+str(self.extResolution) + if self.extResolution is None: + return "Internal display only, at "+str(self.intResolution) + return "External display %s at %s %s internal display %s at %s" % ("(primary)" if self.extIsPrimary else "", str(self.extResolution), str(self.relPosition), "" if self.extIsPrimary else "(primary)", str(self.intResolution)) class Connector: def __init__(self, name=None): - self.name = name # connector name, e.g. "HDMI1" - self.edid = None # EDID string for the connector, or None if disconnected - self.resolutions = set() # list of Resolution objects, empty if disconnected + self.name = name # connector name, e.g. "HDMI1" + self.edid = None # EDID string for the connector, or None if disconnected + self._resolutions = set() # list of Resolution objects, empty if disconnected + self.preferredResolution = None + self.__lastResolution = None + self.hasLastResolution = False def __str__(self): return str(self.name) def __repr__(self): - return """""" % (str(self.name), str(self.edid), ", ".join(str(r) for r in self.resolutions)) + return """""" % (str(self.name), str(self.edid), ", ".join(str(r) for r in self.getResolutionList())) + + def __setLastRes(self, res): + # res == None means this display was last switched off + if res is not None and not res in self._resolutions: + raise ValueError("Resolution "+res+" not available for "+self.name+".") + self.__lastResolution = res + self.hasLastResolution = True + + def __getLastRes(self): + if not self.hasLastResolution: + raise ValueError("Connector %s has no last known resolution." % self.name) + return self.__lastResolution + + lastResolution = property(__getLastRes, __setLastRes) def isConnected(self): - assert (self.edid is None) == (len(self.resolutions)==0) + assert (self.edid is None) == (len(self._resolutions)==0) return self.edid is not None def addResolution(self, resolution): assert isinstance(resolution, Resolution) - self.resolutions.add(resolution) + self._resolutions.add(resolution) def appendToEdid(self, s): if self.edid is None: self.edid = s else: self.edid += s + + def getResolutionList(self): + return sorted(self._resolutions, key=lambda r: (0 if self.hasLastResolution and r==self.lastResolution else 1, 0 if r==self.preferredResolution else 1, -r.pixelCount())) class ScreenSituation: connectors = [] # contains all the Connector objects @@ -177,6 +221,7 @@ class ScreenSituation: if self.internalConnector == self.externalConnector: raise Exception("Internal and external connector are the same. This must not happen. Please fix ~/.dsl.conf."); print("Detected external connector:",self.externalConnector) + # self.lastSetup is left uninitialized so you can't access it before trying a lookup in the database # Run xrandr and fill the dict of connector names mapped to lists of available resolutions. def _getXrandrInformation(self): @@ -209,6 +254,8 @@ class ScreenSituation: resolution = Resolution(int(m.group(1)), int(m.group(2))) assert connector is not None connector.addResolution(resolution) + if '+preferred' in line: + connector.preferredResolution = resolution continue # EDID? m = re.search(r'^\s*EDID:\s*$', line) @@ -227,13 +274,13 @@ class ScreenSituation: # return available internal resolutions def internalResolutions(self): - return self.internalConnector.resolutions + return self.internalConnector.getResolutionList() # return available external resolutions (or None, if there is no external screen connected) def externalResolutions(self): if self.externalConnector is None: return None - return self.externalConnector.resolutions + return self.externalConnector.getResolutionList() # return resolutions available for both internal and external screen def commonResolutions(self): @@ -260,3 +307,19 @@ class ScreenSituation: call += ["--output", name] + connectorArgs[name] return call + def fetchDBInfo(self, db): + if self.externalConnector and self.externalConnector.edid: + self.lastSetup = db.getConfig(self.externalConnector.edid) # may also return None + else: + self.lastSetup = None + if self.lastSetup: + print("SETUP FOUND", self.lastSetup) + self.externalConnector.lastResolution = self.lastSetup.extResolution + self.internalConnector.lastResolution = self.lastSetup.intResolution + else: + print("NO SETUP FOUND") + + def putDBInfo(self, db, setup): + if not self.externalConnector or not self.externalConnector.edid: + return + db.putConfig(self.externalConnector.edid, setup)