/usr/share/doc/python-xlib/examples/xrandr.py is in python-xlib 0.14+20091101-5.
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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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 | #!/usr/bin/python
#
# examples/xrandr.py -- demonstrate the RandR extension
#
# Copyright (C) 2009 David H. Bronke <whitelynx@gmail.com>
#
# 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
import sys, os, pprint
# Change path so we find Xlib
sys.path.insert(1, os.path.join(sys.path[0], '..'))
from Xlib import X, display, Xutil
from Xlib.ext import randr
# Application window (only one)
class Window:
def __init__(self, display):
self.d = display
# Check for extension
if not self.d.has_extension('RANDR'):
sys.stderr.write('%s: server does not have the RANDR extension\n'
% sys.argv[0])
print(self.d.query_extension('RANDR'))
sys.stderr.write("\n".join(self.d.list_extensions()))
if self.d.query_extension('RANDR') is None:
sys.exit(1)
# print version
r = self.d.xrandr_query_version()
print('RANDR version %d.%d' % (r.major_version, r.minor_version))
# Grab the current screen
self.screen = self.d.screen()
self.window = self.screen.root.create_window(
50, 50, 300, 200, 2,
self.screen.root_depth,
X.InputOutput,
X.CopyFromParent,
# special attribute values
background_pixel = self.screen.white_pixel,
event_mask = (X.ExposureMask |
X.StructureNotifyMask |
X.ButtonPressMask |
X.ButtonReleaseMask |
X.Button1MotionMask),
colormap = X.CopyFromParent,
)
self.gc = self.window.create_gc(
foreground = self.screen.black_pixel,
background = self.screen.white_pixel,
)
# Set some WM info
self.WM_DELETE_WINDOW = self.d.intern_atom('WM_DELETE_WINDOW')
self.WM_PROTOCOLS = self.d.intern_atom('WM_PROTOCOLS')
self.window.set_wm_name('Xlib example: xrandr.py')
self.window.set_wm_icon_name('xrandr.py')
self.window.set_wm_class('xrandr', 'XlibExample')
self.window.set_wm_protocols([self.WM_DELETE_WINDOW])
self.window.set_wm_hints(flags = Xutil.StateHint,
initial_state = Xutil.NormalState)
self.window.set_wm_normal_hints(flags = (Xutil.PPosition | Xutil.PSize
| Xutil.PMinSize),
min_width = 20,
min_height = 20)
# Map the window, making it visible
self.window.map()
# Enable all RandR events.
self.window.xrandr_select_input(
randr.RRScreenChangeNotifyMask
| randr.RRCrtcChangeNotifyMask
| randr.RROutputChangeNotifyMask
| randr.RROutputPropertyNotifyMask
)
self.pp = pprint.PrettyPrinter(indent=4)
print("Screen info:")
self.pp.pprint(self.window.xrandr_get_screen_info()._data)
print("Screen size range:")
self.pp.pprint(self.window.xrandr_get_screen_size_range()._data)
print("Primary output:")
self.pp.pprint(self.window.xrandr_get_output_primary()._data)
resources = self.window.xrandr_get_screen_resources()._data
print("Modes:")
for mode_id, mode in self.parseModes(resources['mode_names'], resources['modes']).items():
print(" %d: %s" % (mode_id, mode['name']))
for output in resources['outputs']:
print("Output %d info:" % (output, ))
self.pp.pprint(self.d.xrandr_get_output_info(output, resources['config_timestamp'])._data)
for crtc in resources['crtcs']:
print("CRTC %d info:" % (crtc, ))
self.pp.pprint(self.d.xrandr_get_crtc_info(crtc, resources['config_timestamp'])._data)
print("Raw screen resources:")
self.pp.pprint(resources)
def parseModes(self, mode_names, modes):
lastIdx = 0
modedatas = dict()
for mode in modes:
modedata = dict(mode._data)
modedata['name'] = mode_names[lastIdx:lastIdx + modedata['name_length']]
modedatas[modedata['id']] = modedata
lastIdx += modedata['name_length']
return modedatas
# Main loop, handling events
def loop(self):
current = None
while 1:
e = self.d.next_event()
# Window has been destroyed, quit
if e.type == X.DestroyNotify:
sys.exit(0)
# Screen information has changed
elif e.type == self.d.extension_event.ScreenChangeNotify:
print('Screen change')
print(self.pp.pprint(e._data))
# CRTC information has changed
elif e.type == self.d.extension_event.CrtcChangeNotify:
print('CRTC change')
print(self.pp.pprint(e._data))
# Output information has changed
elif e.type == self.d.extension_event.OutputChangeNotify:
print('Output change')
print(self.pp.pprint(e._data))
# Output property information has changed
elif e.type == self.d.extension_event.OutputPropertyNotify:
print('Output property change')
print(self.pp.pprint(e._data))
# Somebody wants to tell us something
elif e.type == X.ClientMessage:
if e.client_type == self.WM_PROTOCOLS:
fmt, data = e.data
if fmt == 32 and data[0] == self.WM_DELETE_WINDOW:
sys.exit(0)
if __name__ == '__main__':
Window(display.Display()).loop()
|