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Add a partial implementation of the XFIXES extension and an example that uses
it.
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‎Xlib/ext/__init__.py‎

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('RECORD', 'record'),
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('Composite', 'composite'),
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('RANDR', 'randr'),
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('XFIXES', 'xfixes'),
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]
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__all__ = map(lambda x: x[1], __extensions__)

‎Xlib/ext/xfixes.py‎

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# Xlib.ext.xfixes -- XFIXES extension module
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#
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# Copyright (C) 2010-2011 Outpost Embedded, LLC
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# Forest Bond <forest.bond@rapidrollout.com>
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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'''
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A partial implementation of the XFIXES extension. Only the HideCursor and
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ShowCursor requests are provided.
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'''
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from Xlib.protocol import rq
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extname = 'XFIXES'
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class QueryVersion(rq.ReplyRequest):
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_request = rq.Struct(rq.Card8('opcode'),
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rq.Opcode(0),
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rq.RequestLength(),
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rq.Card32('major_version'),
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rq.Card32('minor_version')
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)
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_reply = rq.Struct(rq.ReplyCode(),
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rq.Pad(1),
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rq.Card16('sequence_number'),
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rq.ReplyLength(),
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rq.Card32('major_version'),
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rq.Card32('minor_version'),
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rq.Pad(16)
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)
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def query_version(self):
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return QueryVersion(display=self.display,
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opcode=self.display.get_extension_major(extname),
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major_version=4,
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minor_version=0)
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class HideCursor(rq.Request):
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_request = rq.Struct(rq.Card8('opcode'),
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rq.Opcode(29),
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rq.RequestLength(),
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rq.Window('window')
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)
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def hide_cursor(self):
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HideCursor(display=self.display,
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opcode=self.display.get_extension_major(extname),
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window=self)
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class ShowCursor(rq.Request):
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_request = rq.Struct(rq.Card8('opcode'),
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rq.Opcode(30),
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rq.RequestLength(),
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rq.Window('window')
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)
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def show_cursor(self):
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ShowCursor(display=self.display,
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opcode=self.display.get_extension_major(extname),
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window=self)
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def init(disp, info):
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disp.extension_add_method('display', 'xfixes_query_version', query_version)
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disp.extension_add_method('window', 'xfixes_hide_cursor', hide_cursor)
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disp.extension_add_method('window', 'xfixes_show_cursor', show_cursor)

‎examples/xfixes.py‎

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#!/usr/bin/python
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#
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# examples/xfixes.py -- demonstrate the XFIXES extension
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#
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# Copyright (C) 2011 Outpost Embedded, LLC
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# Forest Bond <forest.bond@rapidrollout.com>
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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import sys, os
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from optparse import OptionParser
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# Change path so we find Xlib
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sys.path.insert(1, os.path.join(sys.path[0], '..'))
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from Xlib.display import Display
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def main(argv):
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parser = OptionParser()
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parser.add_option('--hide-cursor', action='store_true', default=False)
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parser.add_option('--show-cursor', action='store_true', default=False)
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opts, args = parser.parse_args(argv[1:])
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if opts.hide_cursor and opts.show_cursor:
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parser.error('--hide-cursor and --show-cursor cannot be combined')
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if not any((opts.hide_cursor, opts.show_cursor)):
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parser.error('specify --hide-cursor or --show-cursor')
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display = Display()
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if not display.has_extension('XFIXES'):
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if display.query_extension('XFIXES') is None:
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print >>sys.stderr, 'XFIXES extension not supported'
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return 1
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xfixes_version = display.xfixes_query_version()
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print >>sys.stderr, 'Found XFIXES version %s.%s' % (
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xfixes_version.major_version,
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xfixes_version.minor_version,
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)
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if opts.hide_cursor:
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display.screen().root.xfixes_hide_cursor()
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elif opts.show_cursor:
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display.screen().root.xfixes_hide_cursor()
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if __name__ == '__main__':
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sys.exit(main(sys.argv))

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