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#!/usr/bin/python
#
# examples/xinerama.py -- demonstrate the Xinerama 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.append(os.path.join(os.path.dirname(__file__), '..'))
from Xlib import X, display, Xutil
from Xlib.ext import xinerama
# Application window (only one)
class Window:
def __init__(self, display):
self.d = display
# Check for extension
if not self.d.has_extension('XINERAMA'):
sys.stderr.write('%s: server does not have the XINERAMA extension\n'
% sys.argv[0])
print self.d.query_extension('XINERAMA')
sys.stderr.write("\n".join(self.d.list_extensions()))
if self.d.query_extension('XINERAMA') is None:
sys.exit(1)
# print version
r = self.d.xinerama_query_version()
print 'XINERAMA 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: xinerama.py')
self.window.set_wm_icon_name('xinerama.py')
self.window.set_wm_class('xinerama', '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()
self.pp = pprint.PrettyPrinter(indent=4)
print "Xinerama active:", bool(self.d.xinerama_is_active())
print "Screen info:"
self.pp.pprint(self.d.xinerama_query_screens()._data)
# FIXME: This doesn't work!
#print "Xinerama info:"
#self.pp.pprint(self.d.xinerama_get_info(self.d.screen().root_visual)._data)
print "Xinerama state:"
self.pp.pprint(self.window.xinerama_get_state()._data)
print "Screen count:"
self.pp.pprint(self.window.xinerama_get_screen_count()._data)
for screennum in range(self.window.xinerama_get_screen_count().screen_count):
print "Screen %d size:" % (screennum, )
self.pp.pprint(self.window.xinerama_get_screen_size(screennum)._data)
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)
# 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()