def main(camera):
app = Qt.QApplication([])
t = ParameterTree()
t.resize(600, 800)
t.show()
def value_changed(param, value):
try:
setattr(camera, param.name(), value)
except Exception as err:
Qt.QMessageBox.critical(None,
"Error setting {}".format(param.name()),
repr(err))
def connect(param, slot):
param.sigValueChanged.connect(slot)
for child in param.children():
connect(child, slot)
with camera:
t.setWindowTitle(camera.device_info.GetFriendlyName())
data = parameter_dict(camera)
# limits are dynamic (ex: max offset-x depends on current value
# of width).
strip_limits(data)
p = Parameter.create(**data)
t.setParameters(p, showTop=False)
connect(p, value_changed)
app.exec_()
class GuiMetadata(HasPyQtGraphParams):
"""General class for a group of metadata that can be controlled via
a GUI.
Parameters
----------
Returns
-------
"""
def __init__(self):
super().__init__()
self.protocol_params_tree = ParameterTree(showHeader=False)
def get_param_dict(self):
""" Return values of the parameters.
Returns
-------
OrderedDict with the params values
"""
return self.params.getValues()
def show_metadata_gui(self):
""" Create and return a ParameterTree window (documented
`here <http://www.pyqtgraph.org/documentation/parametertree/index.html/>`_
)
Returns
-------
ParameterTree object to control the metadata
"""
self.protocol_params_tree = ParameterTree(showHeader=False)
self.protocol_params_tree.setParameters(self.params)
self.protocol_params_tree.setWindowTitle("Metadata")
self.protocol_params_tree.resize(450,
600) # TODO figure out this window
return self.protocol_params_tree
#}}}
qt_mav = QtMav(outdevice, indevice)
# create gui
app = QtGui.QApplication(sys.argv)
f = open("tuner_ui.py.tmp", "w")
uic.compileUi("tuner.ui", f)
tuner = uic.loadUi("tuner.ui")
params = []
parameter = Parameter(name='params', type='group', children=params)
parameter_tree = ParameterTree(parent=tuner.tabTime)
parameter_tree.setParameters(parameter, showTop=False)
parameter_tree.resize(300, 500)
def get_group_index(params, gname): #{{{
"""
recursive group refreshing/adding
params -- parameters structure
gname -- string representing name
return:
index in params structure
-1 if not found
"""
i = 0
for g in params:
if g['name'] == gname:
return i
state = p.saveState()
def restore():
global state
add = p['Save/Restore functionality', 'Restore State', 'Add missing items']
rem = p['Save/Restore functionality', 'Restore State', 'Remove extra items']
p.restoreState(state, addChildren=add, removeChildren=rem)
p.param('Save/Restore functionality', 'Save State').sigActivated.connect(save)
p.param('Save/Restore functionality', 'Restore State').sigActivated.connect(restore)
## Create two ParameterTree widgets, both accessing the same data
t = ParameterTree()
t.setParameters(p, showTop=False)
t.show()
t.resize(400,800)
t2 = ParameterTree()
t2.setParameters(p, showTop=False)
t2.show()
t2.resize(400,800)
## test save/restore
s = p.saveState()
p.restoreState(s)
## Start Qt event loop unless running in interactive mode or using pyside.
if __name__ == '__main__':
import sys
if (sys.flags.interactive != 1) or not hasattr(QtCore, 'PYQT_VERSION'):
QtGui.QApplication.instance().exec_()
'name': 'TextParam',
'type': 'text',
'value': 'Some text...'
},
]
#p = pTypes.ParameterSet("params", params)
p = Parameter(name='params', type='group', children=params)
def change(param, changes):
print "tree changes:"
for param, change, data in changes:
print " [" + '.'.join(p.childPath(param)) + "] ", change, data
p.sigTreeStateChanged.connect(change)
t = ParameterTree()
t.setParameters(p, showTop=False)
t.show()
t.resize(400, 600)
t2 = ParameterTree()
t2.setParameters(p, showTop=False)
t2.show()
t2.resize(400, 600)
import sys
if sys.flags.interactive == 0:
app.exec_()
qt_mav = QtMav(outdevice, indevice)
# create gui
app = QtGui.QApplication(sys.argv)
f = open("tuner_ui.py.tmp", "w")
uic.compileUi("tuner.ui", f)
tuner = uic.loadUi("tuner.ui")
params = []
parameter = Parameter(name='params', type='group', children=params)
parameter_tree = ParameterTree(parent=tuner.tabTime)
parameter_tree.setParameters(parameter, showTop=False)
parameter_tree.resize(300, 500)
def get_group_index(params, gname):#{{{
"""
recursive group refreshing/adding
params -- parameters structure
gname -- string representing name
return:
index in params structure
-1 if not found
"""
i = 0
for g in params:
if g['name'] == gname:
return i
i += 1
class ProtocolControlWidget(QWidget):
"""GUI for controlling a ProtocolRunner.
This class implements:
- selection box of the Protocol to be run;
- window for controlling Protocol parameters;
- toggle button for starting/stopping the Protocol;
- progress bar to display progression of the Protocol.
Parameters
----------
protocol_runner: :class:`ProtocolRunner <stytra.stimulation.ProtocolRunner>` object
ProtocolRunner that is controlled by the GUI.
**Signals**
"""
sig_start_protocol = pyqtSignal()
""" Emitted via the toggle button click, meant to
start the protocol """
sig_stop_protocol = pyqtSignal()
""" Emitted via the toggle button click, meant to
abort the protocol"""
def __init__(self, protocol_runner=None, *args):
""" """
super().__init__(*args)
self.protocol_runner = protocol_runner
# Create parametertree for protocol parameter control
self.protocol_params_tree = ParameterTree(showHeader=False)
# Layout for selecting the protocol:
self.lyt_prot_selection = QHBoxLayout()
# Dropdown menu with the protocol classes found in the Experiment:
self.combo_prot = QComboBox()
self.combo_prot.addItems(
list(self.protocol_runner.prot_class_dict.keys()))
self.combo_prot.currentIndexChanged.connect(self.set_protocol)
self.lyt_prot_selection.addWidget(self.combo_prot)
# Window with the protocol parameters:
self.protocol_params_butt = QPushButton("Protocol parameters")
self.protocol_params_butt.clicked.connect(self.show_stim_params_gui)
self.lyt_prot_selection.addWidget(self.protocol_params_butt)
# Layout for protocol start and progression report:
self.lyt_run = QHBoxLayout()
# Button for startup:
self.button_toggle_prot = QPushButton("▶")
self.button_toggle_prot.clicked.connect(self.toggle_protocol_running)
self.lyt_run.addWidget(self.button_toggle_prot)
# Progress bar for monitoring the protocol:
self.progress_bar = QProgressBar()
self.progress_bar.setFormat("%p% %v/%m")
self.lyt_run.addWidget(self.progress_bar)
# Global layout:
self.lyt = QVBoxLayout()
self.lyt.setContentsMargins(0, 0, 0, 0)
self.lyt.addLayout(self.lyt_run)
self.lyt.addLayout(self.lyt_prot_selection)
self.setLayout(self.lyt)
self.timer = None
# Connect events and signals from the ProtocolRunner to update the GUI:
self.protocol_runner.sig_protocol_updated.connect(
self.update_stim_duration)
self.protocol_runner.sig_timestep.connect(self.update_progress)
self.protocol_runner.sig_protocol_started.connect(self.toggle_icon)
self.protocol_runner.sig_protocol_finished.connect(self.toggle_icon)
self.protocol_runner.sig_protocol_updated.connect(
self.update_stim_duration)
# If a previous protocol was already set in the protocol runner
# change the GUI values accordingly:
if protocol_runner.protocol is not None:
self.combo_prot.setCurrentText(protocol_runner.protocol.name)
else:
self.set_protocol()
def show_stim_params_gui(self):
"""Create and show window to update protocol parameters.
"""
if self.protocol_runner.protocol.params is not None:
self.protocol_params_tree.setParameters(
self.protocol_runner.protocol.params)
self.protocol_params_tree.show()
self.protocol_params_tree.setWindowTitle("Protocol parameters")
self.protocol_params_tree.resize(300, 600)
def toggle_protocol_running(self):
"""Emit the start and stop signals. These can be used in the Experiment
class or directly connected with the respective ProtocolRunner
start() and stop() methods.
Parameters
----------
Returns
-------
"""
# Start/stop the protocol:
if not self.protocol_runner.running:
self.sig_start_protocol.emit()
else:
self.sig_stop_protocol.emit()
self.toggle_icon()
def toggle_icon(self):
"""Change the play/stop icon of the GUI.
"""
if self.button_toggle_prot.text() == "■":
self.button_toggle_prot.setText("▶")
self.progress_bar.setValue(0)
else:
self.button_toggle_prot.setText("■")
def update_stim_duration(self):
""" """
self.progress_bar.setMaximum(int(self.protocol_runner.duration))
self.progress_bar.setValue(0)
def update_progress(self):
""" """
self.progress_bar.setValue(int(self.protocol_runner.t))
def set_protocol(self):
"""Use value in the dropdown menu to change the protocol.
"""
protocol_name = self.combo_prot.currentText()
self.protocol_runner.set_new_protocol(protocol_name)
self.button_toggle_prot.setEnabled(True)
class CameraViewWidget(QWidget):
"""A widget to show images from a frame source and display the camera controls.
***It does not implement a frame dispatcher by itself so it may lag behind
the camera at high frame rates!***
Parameters
----------
Returns
-------
"""
def __init__(self, experiment=None, camera=None):
"""
:param experiment: experiment to which this belongs
(:class:Experiment <stytra.Experiment> object)
"""
super().__init__()
self.experiment = experiment
if experiment is not None:
self.camera = experiment.camera
experiment.gui_timer.timeout.connect(self.update_image)
else:
self.camera = camera
self.gui_timer = QTimer()
self.gui_timer.setSingleShot(False)
self.control_params = CameraControlParameters()
# Create the layout for the camera view:
self.camera_display_widget = pg.GraphicsLayoutWidget()
# Display area for showing the camera image:
self.display_area = pg.ViewBox(lockAspect=1, invertY=False)
self.display_area.setRange(
QRectF(0, 0, 640, 640), update=True, disableAutoRange=True
)
# Image to which the frame will be set, initially black:
self.image_item = pg.ImageItem()
self.image_item.setImage(np.zeros((640, 480), dtype=np.uint8))
self.display_area.addItem(self.image_item)
self.camera_display_widget.addItem(self.display_area)
# Queue of frames coming from the camera
if hasattr(experiment, "frame_dispatcher"):
self.frame_queue = self.experiment.frame_dispatcher.gui_queue
else:
self.frame_queue = self.camera.frame_queue
# Queue of control parameters for the camera:
self.control_queue = self.camera.control_queue
self.camera_rotation = self.camera.rotation
self.camera_params_tree = ParameterTree(showHeader=False)
# Connect changes in the camera parameters:
for c in self.control_params.params.children():
c.sigValueChanged.connect(self.update_controls)
self.layout = QVBoxLayout()
self.layout.setContentsMargins(0, 0, 0, 0)
self.layout.addWidget(self.camera_display_widget)
self.layout_control = QHBoxLayout()
if self.control_queue is not None:
self.params_button = QPushButton("Camera params")
self.params_button.clicked.connect(self.show_params_gui)
self.layout_control.addWidget(self.params_button)
self.captureButton = QPushButton("Capture frame")
self.captureButton.clicked.connect(self.save_image)
self.layout_control.addWidget(self.captureButton)
self.layout.addLayout(self.layout_control)
self.current_image = None
self.setLayout(self.layout)
def update_controls(self, value):
"""
Parameters
----------
value :
Parameter object that have changed
Returns
-------
"""
# Put in the queue tuple with name and new value of the parameter:
self.control_queue.put((value.name(), value.value()))
def update_image(self):
"""Update displayed frame while emptying frame source queue. This is done
through a while loop that takes all available frames at every update.
# TODO fix this somehow?
**Important!** if the input queue is too fast this will produce an
infinite loop and block the interface!
Parameters
----------
Returns
-------
"""
first = True
while True:
try:
# In this way, the frame displayed is actually the most
# recent one added to the queue, as a queue is FILO:
if first:
time, self.current_image = self.frame_queue.get(timeout=0.0001)
first = False
else:
# Else, get to free the queue:
_, _ = self.frame_queue.get(timeout=0.001)
except Empty:
break
# Once obtained current image, display it:
if self.current_image is not None:
self.image_item.setImage(self.current_image)
def save_image(self):
"""Save a frame to the current directory."""
timestamp = datetime.datetime.now().strftime("%Y%m%d_%H%M%S")
imsave(
self.experiment.filename_base() + timestamp + "_img.png",
self.image_item.image,
)
def show_params_gui(self):
""" """
self.camera_params_tree.setParameters(self.control_params.params)
self.camera_params_tree.show()
self.camera_params_tree.setWindowTitle("Camera parameters")
self.camera_params_tree.resize(450, 600)
])
]},
{'name': 'Param 5', 'type': 'bool', 'value': True, 'tip': "This is a checkbox"},
{'name': 'Param 6', 'type': 'color', 'value': "FF0", 'tip': "This is a color button. It cam be renamed.", 'renamable': True},
{'name': 'TextParam', 'type': 'text', 'value': 'Some text...'},
]
#p = pTypes.ParameterSet("params", params)
p = Parameter(name='params', type='group', children=params)
def change(param, changes):
print "tree changes:"
for param, change, data in changes:
print " [" + '.'.join(p.childPath(param))+ "] ", change, data
p.sigTreeStateChanged.connect(change)
t = ParameterTree()
t.setParameters(p, showTop=False)
t.show()
t.resize(400,600)
t2 = ParameterTree()
t2.setParameters(p, showTop=False)
t2.show()
t2.resize(400,600)
import sys
if sys.flags.interactive == 0:
app.exec_()
def restore():
global state
add = p['Save/Restore functionality', 'Restore State', 'Add missing items']
rem = p['Save/Restore functionality', 'Restore State', 'Remove extra items']
p.restoreState(state, addChildren=add, removeChildren=rem)
p.param('Save/Restore functionality', 'Save State').sigActivated.connect(save)
p.param('Save/Restore functionality', 'Restore State').sigActivated.connect(restore)
## Create two ParameterTree widgets, both accessing the same data
t = ParameterTree()
t.setParameters(p, showTop=False)
t.show()
t.setWindowTitle('pyqtgraph example: Parameter Tree')
t.resize(400,800)
t2 = ParameterTree()
t2.setParameters(p, showTop=False)
t2.show()
t2.resize(400,800)
## test save/restore
s = p.saveState()
p.restoreState(s)
## Start Qt event loop unless running in interactive mode or using pyside.
if __name__ == '__main__':
import sys
if (sys.flags.interactive != 1) or not hasattr(QtCore, 'PYQT_VERSION'):
QtGui.QApplication.instance().exec_()
