def runSetupProcedure(self,starting_state=EyeTrackerConstants.DEFAULT_SETUP_PROCEDURE):
"""
"""
try:
calibration_properties=self.getConfiguration().get('calibration',None)
if self._eyegaze_control and self.isRecordingEnabled() is False:
# pEyeGaze
# when using the external calibrate.exe to
# run calibration, need todisconnect from the tracker
# and reconnect after calibration is done.
self.setConnectionState(False)
import subprocess,gevent
#p = subprocess.Popen(('calibrate.exe', ''), env={"PATH": "/usr/bin"})
p = subprocess.Popen(('calibrate.exe', ''))
while p.poll() is None:
gevent.sleep(0.05)
self.setConnectionState(True)
# circle_attributes=calibration_properties.get('circle_attributes')
# targetForegroundColor=circle_attributes.get('outer_color') # [r,g,b] of outer circle of targets
# targetBackgroundColor=circle_attributes.get('inner_color') # [r,g,b] of inner circle of targets
# screenColor=calibration_properties.get('screen_background_color') # [r,g,b] of screen
# targetOuterDiameter=circle_attributes.get('outer_diameter') # diameter of outer target circle (in px)
# targetInnerDiameter=circle_attributes.get('inner_diameter') # diameter of inner target circle (in px)
except Exception,e:
return createErrorResult("IOHUB_DEVICE_EXCEPTION",
error_message="An unhandled exception occurred on the ioHub Server Process.",
method="EyeTracker.runSetupProcedure",
starting_state=starting_state,
error=e)
def sendCommand(self, key, value=None):
"""
"""
try:
if self._eyegaze_control:
if key == 'get_control_status':
rdict=dict()
for a in self._eyegaze_control.__slots__:
v=getattr(self._eyegaze_control,a)
rdict[a]=v
return rdict
elif key == 'get_config':
egConfig=pEyeGaze._stEgConfig(0,0)
r = pEyeGaze.EgGetConfig(byref(self._eyegaze_control),byref(egConfig),sizeof(egConfig))
rdict=None
if r==0:
rdict= {'iNVis':egConfig.iNVis, 'bEyefollower': egConfig.bEyefollower}
egConfig=None
return rdict
else:
ioHub.print2err('WARNING: EyeGaze command not handled: {0} = {1}.'.format())
except Exception, e:
return createErrorResult("IOHUB_DEVICE_EXCEPTION",
error_message="An unhandled exception occurred on the ioHub Server Process.",
method="EyeTracker.sendCommand", key=key,value=value, error=e)
def isConnected(self):
"""
"""
try:
return self._eyegaze_control != None
except Exception, e:
return createErrorResult("IOHUB_DEVICE_EXCEPTION",
error_message="An unhandled exception occurred on the ioHub Server Process.",
method="EyeTracker.isConnected", error=e)
def getLastGazePosition(self):
"""
"""
try:
return self._latest_gaze_position
except Exception, e:
return createErrorResult("IOHUB_DEVICE_EXCEPTION",
error_message="An unhandled exception occurred on the ioHub Server Process.",
method="EyeTracker.getLastGazePosition", error=e)
def isRecordingEnabled(self,*args,**kwargs):
"""
"""
try:
return self._eyegaze_control is not None and self._eyegaze_control.bTrackingActive in [1,True]
except Exception, e:
return createErrorResult("IOHUB_DEVICE_EXCEPTION",
error_message="An unhandled exception occurred on the ioHub Server Process.",
method="EyeTracker.isRecordingEnabled", error=e)
def _displayToEyeTrackerCoords(self,display_x,display_y):
"""
"""
try:
gaze_x, gaze_y = self._display_device.pixel2DisplayCoord(display_x,display_y,self._display_device.getIndex())
return gaze_x, gaze_y
except Exception,e:
return createErrorResult("IOHUB_DEVICE_EXCEPTION",
error_message="An unhandled exception occurred on the ioHub Server Process.",
method="EyeTracker._displayToEyeTrackerCoords",
error=e)
def enableEventReporting(self,enabled=True):
"""
"""
try:
if self._eyegaze_control:
enabled=self.setRecordingState(self,enabled)
return self.setRecordingState(enabled)
except Exception, e:
return createErrorResult("IOHUB_DEVICE_EXCEPTION",
error_message="An unhandled exception occurred on the ioHub Server Process.",
method="EyeTracker.enableEventReporting", error=e)
def sendMessage(self,message_contents,time_offset=None):
"""
"""
try:
if self._eyegaze_control:
ioHub.print2err("EyeGaze sendMessage not yet implemented")
return EyeTrackerConstants.FUNCTIONALITY_NOT_SUPPORTED
except Exception, e:
return createErrorResult("IOHUB_DEVICE_EXCEPTION",
error_message="An unhandled exception occurred on the ioHub Server Process.",
method="EyeTracker.sendMessage", message_contents=message_contents,time_offset=time_offset, error=e)
def setConnectionState(self,enable):
"""
"""
try:
if isinstance(enable,bool):
if enable is True and not self.isConnected():
self._eyegaze_control=pEyeGaze.initializeEyeGazeDevice(self._display_device, self.getConfiguration())
if self._eyegaze_control is None:
ioHub.print2err("Could not connect to EyeGaze. Exiting app..")
sys.exit(0)
if self._eyegaze_control:
return True
return False
elif enable is False and self.isConnected():
result=pEyeGaze.EgExit(byref(self._eyegaze_control))
self._eyegaze_control=None
return False
else:
return createErrorResult("INVALID_METHOD_ARGUMENT_VALUE",error_message="The enable arguement value provided is not recognized",method="EyeTracker.setConnectionState",arguement='enable', value=enable)
except Exception,e:
return createErrorResult("IOHUB_DEVICE_EXCEPTION",error_message="An unhandled exception occurred on the ioHub Server Process.",method="EyeTracker.setConnectionState",arguement='enable', value=enable, error=e)
def _eyeTrackerToDisplayCoords(self,eyetracker_point):
"""
"""
try:
px,py=eyetracker_point
display_x, display_y = self._display_device.pixel2DisplayCoord(px,py,self._display_device.getIndex())
return display_x, display_y
except Exception,e:
return createErrorResult("IOHUB_DEVICE_EXCEPTION",
error_message="An unhandled exception occurred on the ioHub Server Process.",
method="EyeTracker._eyeTrackerToDisplayCoords",
error=e)
def setRecordingState(self,recording):
"""
"""
try:
if not isinstance(recording,bool):
return createErrorResult("INVALID_METHOD_ARGUMENT_VALUE",
error_message="The recording arguement value provided is not a boolean.",
method="EyeTracker.setRecordingState",arguement='recording', value=recording)
if self._eyegaze_control and recording is True and not self.isRecordingEnabled():
self._last_poll_time=0.0
self._eyegaze_control.bTrackingActive=1
EyeTrackerDevice.enableEventReporting(self,True)
elif self._eyegaze_control and recording is False and self.isRecordingEnabled():
self._eyegaze_control.bTrackingActive=0
EyeTrackerDevice.enableEventReporting(self,False)
self._latest_sample=None
self._latest_gaze_position=None
return self.isRecordingEnabled()
except Exception, e:
return createErrorResult("IOHUB_DEVICE_EXCEPTION",
error_message="An unhandled exception occurred on the ioHub Server Process.",
method="EyeTracker.setRecordingState", error=e)
def enableEventReporting(self,enabled=True):
"""
enableEventReporting is functionaly identical to the eye tracker
device specific setRecordingState method.
"""
try:
enabled=EyeTrackerDevice.enableEventReporting(self,enabled)
self.setRecordingState(enabled)
return enabled
except Exception, e:
return createErrorResult("IOHUB_DEVICE_EXCEPTION",
error_message="An unhandled exception occurred on the ioHub Server Process.",
method="EyeTracker.enableEventReporting", error=e)