/usr/lib/python2.7/dist-packages/DisplayCAL/xrandr.py is in dispcalgui 3.5.0.0-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 | # -*- coding: utf-8 -*-
from ctypes import POINTER, Structure, c_int, c_long, c_ubyte, c_ulong, cdll, pointer, util
libx11pth = util.find_library("X11")
if not libx11pth:
raise ImportError("Couldn't find libX11")
try:
libx11 = cdll.LoadLibrary(libx11pth)
except OSError:
raise ImportError("Couldn't load libX11")
libxrandrpth = util.find_library("Xrandr")
if not libxrandrpth:
raise ImportError("Couldn't find libXrandr")
try:
libxrandr = cdll.LoadLibrary(libxrandrpth)
except OSError:
raise ImportError("Couldn't load libXrandr")
import os
import sys
from options import debug
XA_CARDINAL = 6
XA_INTEGER = 19
Atom = c_ulong
class Display(Structure):
__slots__ = []
Display._fields_ = [('_opaque_struct', c_int)]
try:
libx11.XInternAtom.restype = Atom
libx11.XOpenDisplay.restype = POINTER(Display)
libx11.XRootWindow.restype = c_ulong
libx11.XGetWindowProperty.restype = c_int
libx11.XGetWindowProperty.argtypes = [POINTER(Display), c_ulong, Atom, c_long,
c_long, c_int, c_ulong,
POINTER(c_ulong), POINTER(c_int),
POINTER(c_ulong), POINTER(c_ulong),
POINTER(POINTER(c_ubyte))]
except AttributeError, exception:
raise ImportError("libX11: %s" % exception)
try:
libxrandr.XRRGetOutputProperty.restype = c_int
libxrandr.XRRGetOutputProperty.argtypes = [POINTER(Display), c_ulong, Atom, c_long,
c_long, c_int, c_int, c_ulong,
POINTER(c_ulong), POINTER(c_int),
POINTER(c_ulong), POINTER(c_ulong),
POINTER(POINTER(c_ubyte))]
except AttributeError, exception:
raise ImportError("libXrandr: %s" % exception)
class XDisplay(object):
def __init__(self, name=None):
self.name = name or os.getenv("DISPLAY")
def __enter__(self):
self.open()
return self
def __exit__(self, etype, value, tb):
self.close()
def open(self):
self.display = libx11.XOpenDisplay(self.name)
if not self.display:
raise ValueError("Invalid X display %r" % self.name)
def close(self):
libx11.XCloseDisplay(self.display)
def intern_atom(self, atom_name):
atom_id = libx11.XInternAtom(self.display, atom_name, False)
if not atom_id:
raise ValueError("Invalid atom name %r" % atom_name)
return atom_id
def root_window(self, screen_no=0):
window = libx11.XRootWindow(self.display, screen_no)
if not window:
raise ValueError("Invalid X screen %r" % screen_no)
return window
def get_window_property(self, window, atom_id, atom_type=XA_CARDINAL):
ret_type, ret_format, ret_len, ret_togo, atomv = (c_ulong(),
c_int(),
c_ulong(),
c_ulong(),
pointer(c_ubyte()))
property = None
if libx11.XGetWindowProperty(self.display, window,
atom_id, 0, 0x7ffffff, False, atom_type,
ret_type, ret_format, ret_len, ret_togo,
atomv) == 0 and ret_len.value > 0:
if debug:
print "ret_type:", ret_type.value
print "ret_format:", ret_format.value
print "ret_len:", ret_len.value
print "ret_togo:", ret_togo.value
property = [atomv[i] for i in xrange(ret_len.value)]
return property
def get_output_property(self, output, atom_id, atom_type=XA_CARDINAL):
if not output:
raise ValueError("Invalid output %r specified" % output)
ret_type, ret_format, ret_len, ret_togo, atomv = (c_ulong(),
c_int(),
c_ulong(),
c_ulong(),
pointer(c_ubyte()))
property = None
if (libxrandr.XRRGetOutputProperty(self.display,
output,
atom_id, 0, 0x7ffffff, False, False,
atom_type, ret_type, ret_format,
ret_len, ret_togo, atomv) == 0 and
ret_len.value > 0):
if debug:
print "ret_type:", ret_type.value
print "ret_format:", ret_format.value
print "ret_len:", ret_len.value
print "ret_togo:", ret_togo.value
property = [atomv[i] for i in xrange(ret_len.value)]
return property
if __name__ == "__main__":
with XDisplay() as display:
property = display.get_output_property(int(sys.argv[1]), sys.argv[2],
int(sys.argv[3]))
print "%s for display %s: %r" % (sys.argv[2], sys.argv[1], property)
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