You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
113 lines
3.3 KiB
113 lines
3.3 KiB
2 years ago
|
# Xlib.ext.ge -- Generic Event extension module
|
||
|
|
#
|
||
|
|
# Copyright (C) 2012 Outpost Embedded, LLC
|
||
|
|
# Forest Bond <forest.bond@rapidrollout.com>
|
||
|
|
#
|
||
|
|
# This library is free software; you can redistribute it and/or
|
||
|
|
# modify it under the terms of the GNU Lesser General Public License
|
||
|
|
# as published by the Free Software Foundation; either version 2.1
|
||
|
|
# of the License, or (at your option) any later version.
|
||
|
|
#
|
||
|
|
# This library 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 Lesser General Public License for more details.
|
||
|
|
#
|
||
|
|
# You should have received a copy of the GNU Lesser General Public
|
||
|
|
# License along with this library; if not, write to the
|
||
|
|
# Free Software Foundation, Inc.,
|
||
|
|
# 59 Temple Place,
|
||
|
|
# Suite 330,
|
||
|
|
# Boston, MA 02111-1307 USA
|
||
|
|
|
||
|
|
'''
|
||
|
|
ge - Generic Event Extension
|
||
|
|
'''
|
||
|
|
|
||
|
|
from Xlib.protocol import rq
|
||
|
|
|
||
|
|
extname = 'Generic Event Extension'
|
||
|
|
|
||
|
|
|
||
|
|
GenericEventCode = 35
|
||
|
|
|
||
|
|
|
||
|
|
class GEQueryVersion(rq.ReplyRequest):
|
||
|
|
_request = rq.Struct(
|
||
|
|
rq.Card8('opcode'),
|
||
|
|
rq.Opcode(0),
|
||
|
|
rq.RequestLength(),
|
||
|
|
rq.Card32('major_version'),
|
||
|
|
rq.Card32('minor_version'),
|
||
|
|
)
|
||
|
|
_reply = rq.Struct(
|
||
|
|
rq.ReplyCode(),
|
||
|
|
rq.Pad(1),
|
||
|
|
rq.Card16('sequence_number'),
|
||
|
|
rq.ReplyLength(),
|
||
|
|
rq.Card32('major_version'),
|
||
|
|
rq.Card32('minor_version'),
|
||
|
|
rq.Pad(16),
|
||
|
|
)
|
||
|
|
|
||
|
|
|
||
|
|
def query_version(self):
|
||
|
|
return GEQueryVersion(
|
||
|
|
display=self.display,
|
||
|
|
opcode=self.display.get_extension_major(extname),
|
||
|
|
major_version=1,
|
||
|
|
minor_version=0,
|
||
|
|
)
|
||
|
|
|
||
|
|
|
||
|
|
class GenericEvent(rq.Event):
|
||
|
|
_code = GenericEventCode
|
||
|
|
_fields = rq.Struct(
|
||
|
|
rq.Card8('type'),
|
||
|
|
rq.Card8('extension'),
|
||
|
|
rq.Card16('sequence_number'),
|
||
|
|
rq.Card32('length'),
|
||
|
|
rq.Card16('evtype'),
|
||
|
|
# Some generic events make use of this space, but with
|
||
|
|
# others the data is simply discarded. In any case we
|
||
|
|
# don't need to explicitly pad this out as we are
|
||
|
|
# always given at least 32 bytes and we save
|
||
|
|
# everything after the first ten as the "data" field.
|
||
|
|
#rq.Pad(22),
|
||
|
|
)
|
||
|
|
|
||
|
|
def __init__(self, binarydata = None, display = None, **keys):
|
||
|
|
if binarydata:
|
||
|
|
data = binarydata[10:]
|
||
|
|
binarydata = binarydata[:10]
|
||
|
|
else:
|
||
|
|
data = ''
|
||
|
|
|
||
|
|
rq.Event.__init__(
|
||
|
|
self,
|
||
|
|
binarydata=binarydata,
|
||
|
|
display=display,
|
||
|
|
**keys
|
||
|
|
)
|
||
|
|
|
||
|
|
if display:
|
||
|
|
ge_event_data = getattr(display, 'ge_event_data', None)
|
||
|
|
if ge_event_data:
|
||
|
|
estruct = ge_event_data.get((self.extension, self.evtype), None)
|
||
|
|
if estruct:
|
||
|
|
data, _ = estruct.parse_binary(data, display)
|
||
|
|
|
||
|
|
self._data['data'] = data
|
||
|
|
|
||
|
|
|
||
|
|
def add_event_data(self, extension, evtype, estruct):
|
||
|
|
if not hasattr(self.display, 'ge_event_data'):
|
||
|
|
self.display.ge_event_data = {}
|
||
|
|
self.display.ge_event_data[(extension, evtype)] = estruct
|
||
|
|
|
||
|
|
|
||
|
|
def init(disp, info):
|
||
|
|
disp.extension_add_method('display', 'ge_query_version', query_version)
|
||
|
|
disp.extension_add_method('display', 'ge_add_event_data', add_event_data)
|
||
|
|
disp.extension_add_event(GenericEventCode, GenericEvent)
|