def _add_event_compression_workaround(self, tdw):
"""Adds a workaround for the motion event compression bug"""
drawstate = self._get_drawing_state(tdw)
win = tdw.get_window()
msg_prefix = "Add motion event compression workaround: "
if (EVCOMPRESSION_WORKAROUND_ALLOW_DISABLE_VIA_API
and self._event_compression_supported):
workaround_used = EVCOMPRESSION_WORKAROUND_DISABLE_VIA_API
was_enabled = win.get_event_compression()
logger.debug(
msg_prefix +
"using set_event_compression(False) (%r) (was %r)",
tdw,
was_enabled,
)
drawstate.event_compression_was_enabled = was_enabled
win.set_event_compression(False)
elif EVCOMPRESSION_WORKAROUND_ALLOW_EVHACK_FILTER:
workaround_used = EVCOMPRESSION_WORKAROUND_EVHACK_FILTER
assert drawstate.evhack_data is None
data = (tdw, self)
logger.warning(msg_prefix + "using evhack filter %r", data)
mypaintlib.evhack_gdk_window_add_filter(win, data)
drawstate.evhack_data = data
drawstate.evhack_positions = []
else:
workaround_used = EVCOMPRESSION_WORKAROUND_NONE
logger.warning(msg_prefix + "not using any workaround")
drawstate.event_compression_workaround = workaround_used
def _add_event_compression_workaround(self, tdw):
"""Adds a workaround for the motion event compression bug"""
drawstate = self._get_drawing_state(tdw)
win = tdw.get_window()
msg_prefix = "Add motion event compression workaround: "
if (EVCOMPRESSION_WORKAROUND_ALLOW_DISABLE_VIA_API
and self._event_compression_supported):
workaround_used = EVCOMPRESSION_WORKAROUND_DISABLE_VIA_API
was_enabled = win.get_event_compression()
logger.debug(
msg_prefix
+ "using set_event_compression(False) (%r) (was %r)",
tdw, was_enabled,
)
drawstate.event_compression_was_enabled = was_enabled
win.set_event_compression(False)
elif EVCOMPRESSION_WORKAROUND_ALLOW_EVHACK_FILTER:
workaround_used = EVCOMPRESSION_WORKAROUND_EVHACK_FILTER
assert drawstate.evhack_data is None
data = (tdw, self)
logger.warning(msg_prefix + "using evhack filter %r", data)
mypaintlib.evhack_gdk_window_add_filter(win, data)
drawstate.evhack_data = data
drawstate.evhack_positions = []
else:
workaround_used = EVCOMPRESSION_WORKAROUND_NONE
logger.warning(msg_prefix + "not using any workaround")
drawstate.event_compression_workaround = workaround_used
def _add_evhack(self, tdw):
drawstate = self._get_drawing_state(tdw)
assert drawstate.evhack_data is None
win = tdw.get_window()
data = (tdw, self)
logger.debug("Adding evhack filter %r", data)
mypaintlib.evhack_gdk_window_add_filter(win, data)
drawstate.evhack_data = data
drawstate.evhack_positions = []
def _add_evhack(self, tdw):
drawstate = self._get_drawing_state(tdw)
assert drawstate.evhack_data is None
win = tdw.get_window()
if hasattr(win, 'set_event_compression'):
# GTK+ 3.12 and above
logger.info("evhack: using set_event_compression(True) instead "
"of evhack")
win.set_event_compression(False)
drawstate.evhack_data = True
else:
logger.info("evhack: set_event_compression() is not available, "
"adding evhack")
data = (tdw, self)
logger.debug("Adding evhack filter %r", data)
mypaintlib.evhack_gdk_window_add_filter(win, data)
drawstate.evhack_data = data
drawstate.evhack_positions = []
def _add_evhack(self, tdw):
drawstate = self._get_drawing_state(tdw)
assert drawstate.evhack_data is None
win = tdw.get_window()
if hasattr(win, 'set_event_compression'):
# GTK+ 3.12 and above
logger.info("evhack: using set_event_compression(True) instead "
"of evhack")
win.set_event_compression(False);
drawstate.evhack_data = True
else:
logger.info("evhack: set_event_compression() is not available, "
"adding evhack")
data = (tdw, self)
logger.debug("Adding evhack filter %r", data)
mypaintlib.evhack_gdk_window_add_filter(win, data)
drawstate.evhack_data = data
drawstate.evhack_positions = []
