import logging
from pyvirtualdisplay.abstractdisplay import AbstractDisplay
log = logging.getLogger(__name__)
PROGRAM = "Xephyr"
class XephyrDisplay(AbstractDisplay):
"""
Xephyr wrapper
Xephyr is an X server outputting to a window on a pre-existing X display
"""
def __init__(
self,
size=(1024, 768),
color_depth=24,
bgcolor="black",
use_xauth=False,
retries=10,
extra_args=[],
manage_global_env=True,
parent=None,
):
"""
:param bgcolor: 'black' or 'white'
"""
self._color_depth = color_depth
self._size = size
self._bgcolor = bgcolor
self._parent = parent
AbstractDisplay.__init__(
self,
PROGRAM,
use_xauth=use_xauth,
retries=retries,
extra_args=extra_args,
manage_global_env=manage_global_env,
)
def _check_flags(self, helptext):
self._has_resizeable = "-resizeable" in helptext
def _cmd(self):
cmd = (
[
PROGRAM,
]
+ (["-parent", self._parent] if self._parent else [])
+ [
dict(black="-br", white="-wr")[self._bgcolor],
"-screen",
"x".join(map(str, list(self._size) + [self._color_depth])),
]
)
if self._has_displayfd:
cmd += ["-displayfd", str(self._pipe_wfd)]
else:
cmd += [self.new_display_var]
if self._has_resizeable:
cmd += ["-resizeable"]
return cmd
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