class MainWindow():
"""
Defines the main window for the envelope tool GUI
"""
def __init__(self):
"""Initialise the main window"""
self.window = Window(ROOT.gClient.GetRoot(), # pylint: disable=E1101
ROOT.gClient.GetRoot(), # pylint: disable=E1101
SHARE_DIR+"main_frame.json")
self.lattice = Lattice()
self.beam_setup = None
self.magnet_setup = None
self.plot_setup = None
self.plot_setup_options = [{"variable_type":0,
"first_var":0,
"plot_apertures":True}]
self.window.set_button_action("&Beam Setup", self.beam_button_action)
self.window.set_button_action("&Magnet Setup",
self.magnet_button_action)
self.window.set_button_action("&Plot Setup", self.plot_button_action)
self.window.set_button_action("E&xit", self.exit_button_action)
self.update_plot()
def beam_button_action(self):
"""Handle a Beam Setup button press"""
if self.beam_setup == None:
self.beam_setup = BeamSetup(self, self.window.main_frame)
ref, ellipse = self.lattice.get_beam()
self.beam_setup.set_reference(ref)
self.beam_setup.set_matrix(ellipse)
def magnet_button_action(self):
"""Handle a Magnet Setup button press"""
if self.magnet_setup == None:
self.magnet_setup = MagnetSetup(self, self.window.main_frame)
def plot_button_action(self):
"""Handle a Plot Setup button press"""
if self.plot_setup == None:
self.plot_setup = PlotSetup(self, self.window.main_frame,
self.plot_setup_options)
def exit_button_action(self):
"""Handle a Exit button press"""
self.window.close_window()
def update_plot(self):
"""Update the plot"""
canvas_frame = self.window.get_frame("main_canvas", "canvas")
canvas = canvas_frame.GetCanvas()
Plotter(self.plot_setup_options, canvas, self.lattice.ref_list,
self.lattice.ellipse_list, self.lattice.get_field_list())
class OnlineGui(): # pylint: disable = R0902
"""Main frame for the online gui window"""
def __init__(self, datacards):
"""Initialise the main window"""
self.last = datetime.datetime.now()
self.window = Window(ROOT.gClient.GetRoot(),
ROOT.gClient.GetRoot(),
SHARE_DIR+"online_gui.json")
self._set_actions()
self._docstore = None
self._datacards = datacards
self._draw_titles = Queue.Queue()
for title in datacards["online_gui_default_canvases"]:
self._draw_titles.put(title)
self._canvases_read = Queue.Queue()
self._canvases_draw = ThreadedValue([])
self._redraw_target = None
self._paused = ThreadedValue(False)
rotate_tmp = self.window.get_text_entry("Rotate period", type(1.))
self._rotate_period = ThreadedValue(rotate_tmp)
reload_tmp = self.window.get_text_entry("Reload period", type(1.))
self._reload_period = ThreadedValue(reload_tmp)
self._poll_period = ThreadedValue(0.1)
self._collections = ThreadedValue([])
self._init_docstore()
self._start_polling()
def _set_actions(self):
"""
Set up actions (responses to signals)
"""
self.window.set_button_action("&Pause", self.pause_action)
self.window.set_button_action("&Redraw", self.redraw_action)
self.window.set_button_action("Re&load", self.reload_action)
self.window.set_button_action("Re&connect", self.reconnect_action)
self.window.set_button_action("E&xit", self.exit_action)
self.window.set_button_action("&<", self.back_action)
self.window.set_button_action("&>", self.forward_action)
self.window.get_frame("canvas_options", "vertical_frame").\
Resize(200, 500)
self.window.get_frame("canvas_select", "list_box").Resize(200, 200)
self.window.set_action("canvas_select",
"list_box",
"SelectionChanged()",
self.canvas_select_action)
self.window.set_action("Rotate period", "named_text_entry",
"ReturnPressed()", self.rotate_period_action)
self.window.set_action("Reload period", "named_text_entry",
"ReturnPressed()", self.reload_period_action)
def _init_docstore(self):
"""
Initialise the docstore
"""
datacards = self._datacards
self._docstore = RootDocumentStore(
datacards["root_document_store_timeout"],
datacards["root_document_store_poll_time"], 10, 10)
self._docstore.connect({"host":datacards["online_gui_host"],
"port":datacards["online_gui_port"]})
def _start_polling(self):
"""
Start polling the database and rotating the canvases
"""
my_thread = threading.Thread(target=self._poll_canvas_draw,
args=())
my_thread.daemon = True
my_thread.start()
my_thread = threading.Thread(target=self._poll_docstore,
args=())
my_thread.daemon = True
my_thread.start()
def pause_action(self):
"""Handle a Pause/Unpause button press"""
pause_button = self.window.get_frame("&Pause", "button")
if self._paused.get_value():
self._paused.set_value(False)
pause_button.SetText("&Pause")
else:
self._paused.set_value(True)
pause_button.SetText("&Play")
def redraw_action(self):
"""
Handle a Redraw button press
Redraws self._redraw_target
"""
if self._redraw_target == None:
raise GuiError("No canvas to draw")
self._do_redraw(self._redraw_target)
def reload_action(self):
"""Handle a Reload button press"""
self._reload()
if self._redraw_target != None:
go_back_fifo_queue(self._draw_titles)
self._draw_next()
def reconnect_action(self):
"""Handle a Reconnect button press"""
self._docstore.disconnect()
self._init_docstore()
def exit_action(self):
"""Handle a Exit button press"""
self._paused.set_value(True) # tell polling to wait
time.sleep(self._poll_period.get_value()) # thinkapow
self.window.close_window()
def reload_period_action(self):
"""Handle a change to the reload period"""
tmp_reload_period = self.window.get_text_entry("Reload period",
type(1.))
tmp_reload_period = float(tmp_reload_period)
self._reload_period.set_value(tmp_reload_period)
def rotate_period_action(self):
"""Handle a change to the rotate period"""
tmp_rotate_period = self.window.get_text_entry("Rotate period",
type(1.))
tmp_rotate_period = float(tmp_rotate_period)
self._rotate_period.set_value(tmp_rotate_period)
def forward_action(self):
"""Handle a click on the > forward button"""
self._draw_next()
def back_action(self):
"""Handle a click on the < back button"""
go_back_fifo_queue(self._draw_titles)
go_back_fifo_queue(self._draw_titles)
self._draw_next()
def canvas_select_action(self):
"""Handle an update to the selected canvases"""
selected = self._get_canvas_selected()
new_draw_titles = Queue.Queue()
for item in selected:
new_draw_titles.put(item)
self._draw_titles = new_draw_titles
def _poll_canvas_draw(self):
"""
Iterate over the canvas_draw queue, updating the GUI as appropriate
* Update the queue from the canvas_read queue
* Refresh the combo box with items in the canvases_draw queue
"""
# poll_number = 0
while True:
# poll_number += 1
self._draw_next()
self._sleepish(self._rotate_period)
# handle pause
while self._paused.get_value():
time.sleep(self._poll_period.get_value())
def _draw_next(self):
"""
Draw the next canvas in the selected queue
"""
canvases_draw = self._filter_canvases(self._canvases_draw.get_value())
if len(canvases_draw) > 0:
try:
title = self._draw_titles.get_nowait()
new_title = copy.deepcopy(title)
self._draw_titles.put(title)
for wrap in canvases_draw:
if wrap.canvas_title() == new_title:
self._do_redraw(wrap)
break
except Queue.Empty:
pass # no canvas selected
except ValueError:
pass
self._canvases_draw.set_value(canvases_draw)
def _sleepish(self, sleep_length):
"""
Sleep - but keep polling for changes to the sleep_length
* sleep_length - threaded value containing numeric sleep time
"""
time_slept = 0.
poll_period = self._poll_period.get_value()
while sleep_length.get_value() - time_slept > poll_period:
time_slept += self._poll_period.get_value()
time.sleep(poll_period)
def _update_canvases_draw(self):
"""update canvases"""
draw = [wrap.deepcopy() \
for wrap in generate_fifo_queue(self._canvases_read)]
draw.sort(key = lambda wrap: wrap.sort_key())
return draw
def _do_redraw(self, wrap):
"""
Draw the canvas wrap in the main_canvas
"""
# wrap_copy is for ROOT
wrap_copy = wrap.deepcopy()
embedded_canvas = self.window.get_frame("main_canvas", "canvas")
# this eats the wrap_copy TCanvas
wrap_copy.canvas_wrapper.EmbedCanvas(embedded_canvas)
embedded_canvas.GetCanvas().Update()
# this _redraw_target is for the main thread
self._redraw_target = wrap.deepcopy()
def _poll_docstore(self):
"""
Poll the doc store for documents
"""
while True:
print "poll_docstore"
self._reload()
self._sleepish(self._reload_period)
# handle pause
while self._paused.get_value():
time.sleep(self._poll_period.get_value())
def _reload(self):
"""
Reload canvases; if the list of canvases changed, update the multiselect
"""
self._reload_canvases()
# now update GUI elements (each call iterates over the whole
# _canvases_draw queue)
self._update_canvas_select()
def _update_canvas_select(self):
"""
Update the list of canvases in the canvas_select frame
"""
all_canvas_titles = [wrap.canvas_wrapper.GetCanvas().GetTitle() \
for wrap in generate_fifo_queue(self._canvases_read)]
select_box = self.window.get_frame("canvas_select", "list_box")
select_box.RemoveAll()
for i, title in enumerate(all_canvas_titles):
select_box.AddEntry(title, i)
for title in generate_fifo_queue(self._draw_titles):
try:
index = all_canvas_titles.index(title)
select_box.Select(index)
except ValueError: # item was no longer in the select - ignore it
pass
go_back_fifo_queue(self._draw_titles)
# ROOT doesn't like redrawing the histogram titles properly - need to
# force it
self.window.get_frame("canvas_select", "list_box").Resize(200, 10)
self.window.get_frame("canvas_select", "list_box").Resize(200, 200)
def _get_canvas_selected(self):
"""
Get the list of canvases selected in the canvas_select frame
"""
select_box = self.window.get_frame("canvas_select", "list_box")
selected_root = ROOT.TList()
selected = []
select_box.GetSelectedEntries(selected_root)
while selected_root.Last() != None:
selected.insert(0, copy.deepcopy(selected_root.Last().GetText()))
selected_root.RemoveLast()
return selected
def _reload_canvases(self):
"""
Reload canvases from the docstore
"""
# get all of the collections (one for each reducer)
try:
collections = self._docstore.collection_names()
except (DocumentStoreException, SocketError):
print "Failed to get collection names from the docstore"
return
self._collections.set_value(collections)
temp_canvases = []
# update "last accessed" timestamp
self.last = datetime.datetime.now()
# get new canvases
for collection_name in collections:
temp_canvases += self._get_new_canvases(collection_name)
# purge any duplicate canvases
filtered_canvases = self._filter_canvases(temp_canvases)
# build a new queue and reassign _canvases_read
canvases_read = Queue.Queue()
for canvas in filtered_canvases:
canvases_read.put_nowait(canvas)
self._canvases_read = canvases_read
self._collections.set_value(collections)
def _get_new_canvases(self, collection_name):
"""
Get a list of new canvases from the collection
"""
try:
doc_list = self._docstore.get_since(collection_name, self.last)
except DocumentStoreException:
print "Failed to get documents from the docstore"
return []
if len(doc_list) == 0:
return []
tree = doc_list[-1]["doc"]
image_data = ROOT.MAUS.ImageData()
tree.SetBranchAddress("data", image_data)
if tree.GetEntries() == 0:
return []
tree.GetEntry()
return CanvasRewrapped.new_list_from_image(collection_name,
image_data.GetImage())
def _filter_canvases(self, new_canvases):
"""
Enforce that we only have one copy with a given (collection, title)
Note that we want to keep the item with the highest input_time if there
is a choice
"""
combined_list = [wrap.deepcopy() \
for wrap in generate_fifo_queue(self._canvases_read)]
combined_list += new_canvases
combined_list.sort(key=lambda wrap: wrap.sort_key())
if len(combined_list) == 0:
return []
filtered_list = []
for i, item_2 in enumerate(combined_list[1:]):
item_1 = combined_list[i]
if item_1.collection == item_2.collection and \
item_1.canvas_title() == item_2.canvas_title():
pass
else:
filtered_list.append(item_1)
filtered_list.append(combined_list[-1])
return filtered_list
class PlotSetup():
"""
GUI handler for defining data to be plotted
"""
def __init__(self, main_window, parent, selected):
"""
Initialise the window
"""
self.main_window = main_window
self.parent = parent
self.selected = selected
self.window = Window(ROOT.gClient.GetRoot(), # pylint: disable = E1101
parent,
self.share_dir+"plot_setup.json")
for i, item in enumerate(self.selected):
self.window.set_action("variable_type_"+str(i), "drop_down",
"Selected(Int_t)", self.select_action)
type_frame = self.window.get_frame("variable_type_"+str(i),
"drop_down")
type_frame.Select(item["variable_type"])
self.window.set_button_action("&Okay", self.okay_action)
self.window.set_button_action("&Cancel", self.cancel_action)
def okay_action(self):
"""
Handle Okay button press; get the plot selection and push it to the
main window
"""
type_int = self.window.get_frame_dict("variable_type_0",
"drop_down")["frame"].GetSelected()
first_int = self.window.get_frame_dict("first_var_0",
"drop_down")["frame"].GetSelected()
plot_apertures = self.window.get_frame("plot_apertures",
"check_button").IsOn()
if type_int != 0 and first_int == 0:
raise GuiError("Please select plot variable")
self.main_window.plot_setup_options = [{
"variable_type":type_int,
"first_var":first_int,
"plot_apertures":plot_apertures
}]
self.main_window.update_plot()
self.window.close_window()
self.main_window.plot_setup = None
def cancel_action(self):
"""
Handle Cancel button press; just close the window
"""
self.window.close_window()
self.main_window.plot_setup = None
def select_action(self):
"""
Dynamically change the list of items in first_var depending on
variable_type
"""
for i, item in enumerate(self.selected):
type_select = self.window.get_frame_dict("variable_type_"+str(i),
"drop_down")["frame"]
first_var_select = self.window.get_frame_dict("first_var_"+str(i),
"drop_down")["frame"]
selected_type_int = type_select.GetSelected()
selected_type_str = self.type_list[selected_type_int]
var_list_name = self.type_variables_dict[selected_type_str][0]
var_list = self.select_lists[var_list_name]
first_var_select.RemoveAll()
for i, entry in enumerate(var_list):
first_var_select.AddEntry(entry, i)
first_var_select.Select(item["first_var"])
@staticmethod
def get_variable_type(options):
"""
Return a string corresponding to integer variable_type selected
"""
var_type_int = options[0]["variable_type"]
return PlotSetup.type_list[var_type_int]
@staticmethod
def get_first_var(options):
"""
Return a string corresponding to integer first_var selected
"""
var_type_string = PlotSetup.get_variable_type(options)
select_list_key = PlotSetup.type_variables_dict[var_type_string][0]
select_list = PlotSetup.select_lists[select_list_key]
first_var_int = options[0]["first_var"]
return select_list[first_var_int]
my_hit_get_variables = [var for var in Hit.get_variables() if len(var)]
type_list = [
"<Select plot type>",
"mean",
"envelope",
"RMS",
"beta",
"alpha",
"gamma",
"emittance",
"dispersion",
"dispersion_prime"
]
select_lists = {
"no_var":[
"",
], "optics_var":[
"<Select plot variable>",
"x",
"y",
"transverse",
"longitudinal"
], "physics_var":[
"<Select plot variable>"
]+my_hit_get_variables, "kinematic_var":[
"<Select plot variable>",
"x",
"y",
"px",
"py",
"t",
"energy"
], "disp_var":[
"<Select plot variable>",
"x",
"y"
]
}
type_variables_dict = {
"<Select plot type>":["no_var"],
"mean":["physics_var"],
"envelope":["kinematic_var"],
"RMS":["kinematic_var"],
"beta":["optics_var"],
"alpha":["optics_var"],
"gamma":["optics_var"],
"emittance":["optics_var"],
"dispersion":["disp_var"],
"dispersion_prime":["disp_var"],
}
share_dir = ""
class PlotSetup():
"""
GUI handler for defining data to be plotted
"""
def __init__(self, main_window, parent, selected):
"""
Initialise the window
"""
self.main_window = main_window
self.parent = parent
self.selected = selected
self.window = Window(
ROOT.gClient.GetRoot(), # pylint: disable = E1101
parent,
self.share_dir + "plot_setup.json")
for i, item in enumerate(self.selected):
self.window.set_action("variable_type_" + str(i), "drop_down",
"Selected(Int_t)", self.select_action)
type_frame = self.window.get_frame("variable_type_" + str(i),
"drop_down")
type_frame.Select(item["variable_type"])
self.window.set_button_action("&Okay", self.okay_action)
self.window.set_button_action("&Cancel", self.cancel_action)
def okay_action(self):
"""
Handle Okay button press; get the plot selection and push it to the
main window
"""
type_int = self.window.get_frame_dict(
"variable_type_0", "drop_down")["frame"].GetSelected()
first_int = self.window.get_frame_dict(
"first_var_0", "drop_down")["frame"].GetSelected()
plot_apertures = self.window.get_frame("plot_apertures",
"check_button").IsOn()
if type_int != 0 and first_int == 0:
raise GuiError("Please select plot variable")
self.main_window.plot_setup_options = [{
"variable_type": type_int,
"first_var": first_int,
"plot_apertures": plot_apertures
}]
self.main_window.update_plot()
self.window.close_window()
self.main_window.plot_setup = None
def cancel_action(self):
"""
Handle Cancel button press; just close the window
"""
self.window.close_window()
self.main_window.plot_setup = None
def select_action(self):
"""
Dynamically change the list of items in first_var depending on
variable_type
"""
for i, item in enumerate(self.selected):
type_select = self.window.get_frame_dict("variable_type_" + str(i),
"drop_down")["frame"]
first_var_select = self.window.get_frame_dict(
"first_var_" + str(i), "drop_down")["frame"]
selected_type_int = type_select.GetSelected()
selected_type_str = self.type_list[selected_type_int]
var_list_name = self.type_variables_dict[selected_type_str][0]
var_list = self.select_lists[var_list_name]
first_var_select.RemoveAll()
for i, entry in enumerate(var_list):
first_var_select.AddEntry(entry, i)
first_var_select.Select(item["first_var"])
@staticmethod
def get_variable_type(options):
"""
Return a string corresponding to integer variable_type selected
"""
var_type_int = options[0]["variable_type"]
return PlotSetup.type_list[var_type_int]
@staticmethod
def get_first_var(options):
"""
Return a string corresponding to integer first_var selected
"""
var_type_string = PlotSetup.get_variable_type(options)
select_list_key = PlotSetup.type_variables_dict[var_type_string][0]
select_list = PlotSetup.select_lists[select_list_key]
first_var_int = options[0]["first_var"]
return select_list[first_var_int]
my_hit_get_variables = [var for var in Hit.get_variables() if len(var)]
type_list = [
"<Select plot type>", "mean", "envelope", "RMS", "beta", "alpha",
"gamma", "emittance", "dispersion", "dispersion_prime"
]
select_lists = {
"no_var": [
"",
],
"optics_var":
["<Select plot variable>", "x", "y", "transverse", "longitudinal"],
"physics_var": ["<Select plot variable>"] + my_hit_get_variables,
"kinematic_var":
["<Select plot variable>", "x", "y", "px", "py", "t", "energy"],
"disp_var": ["<Select plot variable>", "x", "y"]
}
type_variables_dict = {
"<Select plot type>": ["no_var"],
"mean": ["physics_var"],
"envelope": ["kinematic_var"],
"RMS": ["kinematic_var"],
"beta": ["optics_var"],
"alpha": ["optics_var"],
"gamma": ["optics_var"],
"emittance": ["optics_var"],
"dispersion": ["disp_var"],
"dispersion_prime": ["disp_var"],
}
share_dir = ""
class OnlineGui(): # pylint: disable = R0902
"""Main frame for the online gui window"""
def __init__(self, datacards):
"""Initialise the main window"""
self.last = datetime.datetime.now()
self.window = Window(ROOT.gClient.GetRoot(), ROOT.gClient.GetRoot(),
SHARE_DIR + "online_gui.json")
self._set_actions()
self._docstore = None
self._datacards = datacards
self._draw_titles = Queue.Queue()
for title in datacards["online_gui_default_canvases"]:
self._draw_titles.put(title)
self._canvases_read = Queue.Queue()
self._canvases_draw = ThreadedValue([])
self._redraw_target = None
self._paused = ThreadedValue(False)
rotate_tmp = self.window.get_text_entry("Rotate period", type(1.))
self._rotate_period = ThreadedValue(rotate_tmp)
reload_tmp = self.window.get_text_entry("Reload period", type(1.))
self._reload_period = ThreadedValue(reload_tmp)
self._poll_period = ThreadedValue(0.1)
self._collections = ThreadedValue([])
self._init_docstore()
self._start_polling()
def _set_actions(self):
"""
Set up actions (responses to signals)
"""
self.window.set_button_action("&Pause", self.pause_action)
self.window.set_button_action("&Redraw", self.redraw_action)
self.window.set_button_action("Re&load", self.reload_action)
self.window.set_button_action("Re&connect", self.reconnect_action)
self.window.set_button_action("E&xit", self.exit_action)
self.window.set_button_action("&<", self.back_action)
self.window.set_button_action("&>", self.forward_action)
self.window.get_frame("canvas_options", "vertical_frame").\
Resize(200, 500)
self.window.get_frame("canvas_select", "list_box").Resize(200, 200)
self.window.set_action("canvas_select", "list_box",
"SelectionChanged()", self.canvas_select_action)
self.window.set_action("Rotate period", "named_text_entry",
"ReturnPressed()", self.rotate_period_action)
self.window.set_action("Reload period", "named_text_entry",
"ReturnPressed()", self.reload_period_action)
def _init_docstore(self):
"""
Initialise the docstore
"""
datacards = self._datacards
self._docstore = RootDocumentStore(
datacards["root_document_store_timeout"],
datacards["root_document_store_poll_time"], 10, 10)
self._docstore.connect({
"host": datacards["online_gui_host"],
"port": datacards["online_gui_port"]
})
def _start_polling(self):
"""
Start polling the database and rotating the canvases
"""
my_thread = threading.Thread(target=self._poll_canvas_draw, args=())
my_thread.daemon = True
my_thread.start()
my_thread = threading.Thread(target=self._poll_docstore, args=())
my_thread.daemon = True
my_thread.start()
def pause_action(self):
"""Handle a Pause/Unpause button press"""
pause_button = self.window.get_frame("&Pause", "button")
if self._paused.get_value():
self._paused.set_value(False)
pause_button.SetText("&Pause")
else:
self._paused.set_value(True)
pause_button.SetText("&Play")
def redraw_action(self):
"""
Handle a Redraw button press
Redraws self._redraw_target
"""
if self._redraw_target == None:
raise GuiError("No canvas to draw")
self._do_redraw(self._redraw_target)
def reload_action(self):
"""Handle a Reload button press"""
self._reload()
if self._redraw_target != None:
go_back_fifo_queue(self._draw_titles)
self._draw_next()
def reconnect_action(self):
"""Handle a Reconnect button press"""
self._docstore.disconnect()
self._init_docstore()
def exit_action(self):
"""Handle a Exit button press"""
self._paused.set_value(True) # tell polling to wait
time.sleep(self._poll_period.get_value()) # thinkapow
self.window.close_window()
def reload_period_action(self):
"""Handle a change to the reload period"""
tmp_reload_period = self.window.get_text_entry("Reload period",
type(1.))
tmp_reload_period = float(tmp_reload_period)
self._reload_period.set_value(tmp_reload_period)
def rotate_period_action(self):
"""Handle a change to the rotate period"""
tmp_rotate_period = self.window.get_text_entry("Rotate period",
type(1.))
tmp_rotate_period = float(tmp_rotate_period)
self._rotate_period.set_value(tmp_rotate_period)
def forward_action(self):
"""Handle a click on the > forward button"""
self._draw_next()
def back_action(self):
"""Handle a click on the < back button"""
go_back_fifo_queue(self._draw_titles)
go_back_fifo_queue(self._draw_titles)
self._draw_next()
def canvas_select_action(self):
"""Handle an update to the selected canvases"""
selected = self._get_canvas_selected()
new_draw_titles = Queue.Queue()
for item in selected:
new_draw_titles.put(item)
self._draw_titles = new_draw_titles
def _poll_canvas_draw(self):
"""
Iterate over the canvas_draw queue, updating the GUI as appropriate
* Update the queue from the canvas_read queue
* Refresh the combo box with items in the canvases_draw queue
"""
# poll_number = 0
while True:
# poll_number += 1
self._draw_next()
self._sleepish(self._rotate_period)
# handle pause
while self._paused.get_value():
time.sleep(self._poll_period.get_value())
def _draw_next(self):
"""
Draw the next canvas in the selected queue
"""
canvases_draw = self._filter_canvases(self._canvases_draw.get_value())
if len(canvases_draw) > 0:
try:
title = self._draw_titles.get_nowait()
new_title = copy.deepcopy(title)
self._draw_titles.put(title)
for wrap in canvases_draw:
if wrap.canvas_title() == new_title:
self._do_redraw(wrap)
break
except Queue.Empty:
pass # no canvas selected
except ValueError:
pass
self._canvases_draw.set_value(canvases_draw)
def _sleepish(self, sleep_length):
"""
Sleep - but keep polling for changes to the sleep_length
* sleep_length - threaded value containing numeric sleep time
"""
time_slept = 0.
poll_period = self._poll_period.get_value()
while sleep_length.get_value() - time_slept > poll_period:
time_slept += self._poll_period.get_value()
time.sleep(poll_period)
def _update_canvases_draw(self):
"""update canvases"""
draw = [wrap.deepcopy() \
for wrap in generate_fifo_queue(self._canvases_read)]
draw.sort(key=lambda wrap: wrap.sort_key())
return draw
def _do_redraw(self, wrap):
"""
Draw the canvas wrap in the main_canvas
"""
# wrap_copy is for ROOT
wrap_copy = wrap.deepcopy()
embedded_canvas = self.window.get_frame("main_canvas", "canvas")
# this eats the wrap_copy TCanvas
wrap_copy.canvas_wrapper.EmbedCanvas(embedded_canvas)
embedded_canvas.GetCanvas().Update()
# this _redraw_target is for the main thread
self._redraw_target = wrap.deepcopy()
def _poll_docstore(self):
"""
Poll the doc store for documents
"""
while True:
print "poll_docstore"
self._reload()
self._sleepish(self._reload_period)
# handle pause
while self._paused.get_value():
time.sleep(self._poll_period.get_value())
def _reload(self):
"""
Reload canvases; if the list of canvases changed, update the multiselect
"""
self._reload_canvases()
# now update GUI elements (each call iterates over the whole
# _canvases_draw queue)
self._update_canvas_select()
def _update_canvas_select(self):
"""
Update the list of canvases in the canvas_select frame
"""
all_canvas_titles = [wrap.canvas_wrapper.GetCanvas().GetTitle() \
for wrap in generate_fifo_queue(self._canvases_read)]
select_box = self.window.get_frame("canvas_select", "list_box")
select_box.RemoveAll()
for i, title in enumerate(all_canvas_titles):
select_box.AddEntry(title, i)
for title in generate_fifo_queue(self._draw_titles):
try:
index = all_canvas_titles.index(title)
select_box.Select(index)
except ValueError: # item was no longer in the select - ignore it
pass
go_back_fifo_queue(self._draw_titles)
# ROOT doesn't like redrawing the histogram titles properly - need to
# force it
self.window.get_frame("canvas_select", "list_box").Resize(200, 10)
self.window.get_frame("canvas_select", "list_box").Resize(200, 200)
def _get_canvas_selected(self):
"""
Get the list of canvases selected in the canvas_select frame
"""
select_box = self.window.get_frame("canvas_select", "list_box")
selected_root = ROOT.TList()
selected = []
select_box.GetSelectedEntries(selected_root)
while selected_root.Last() != None:
selected.insert(0, copy.deepcopy(selected_root.Last().GetText()))
selected_root.RemoveLast()
return selected
def _reload_canvases(self):
"""
Reload canvases from the docstore
"""
# get all of the collections (one for each reducer)
try:
collections = self._docstore.collection_names()
except (DocumentStoreException, SocketError):
print "Failed to get collection names from the docstore"
return
self._collections.set_value(collections)
temp_canvases = []
# update "last accessed" timestamp
self.last = datetime.datetime.now()
# get new canvases
for collection_name in collections:
temp_canvases += self._get_new_canvases(collection_name)
# purge any duplicate canvases
filtered_canvases = self._filter_canvases(temp_canvases)
# build a new queue and reassign _canvases_read
canvases_read = Queue.Queue()
for canvas in filtered_canvases:
canvases_read.put_nowait(canvas)
self._canvases_read = canvases_read
self._collections.set_value(collections)
def _get_new_canvases(self, collection_name):
"""
Get a list of new canvases from the collection
"""
try:
doc_list = self._docstore.get_since(collection_name, self.last)
except DocumentStoreException:
print "Failed to get documents from the docstore"
return []
if len(doc_list) == 0:
return []
tree = doc_list[-1]["doc"]
image_data = ROOT.MAUS.ImageData()
tree.SetBranchAddress("data", image_data)
if tree.GetEntries() == 0:
return []
tree.GetEntry()
return CanvasRewrapped.new_list_from_image(collection_name,
image_data.GetImage())
def _filter_canvases(self, new_canvases):
"""
Enforce that we only have one copy with a given (collection, title)
Note that we want to keep the item with the highest input_time if there
is a choice
"""
combined_list = [wrap.deepcopy() \
for wrap in generate_fifo_queue(self._canvases_read)]
combined_list += new_canvases
combined_list.sort(key=lambda wrap: wrap.sort_key())
if len(combined_list) == 0:
return []
filtered_list = []
for i, item_2 in enumerate(combined_list[1:]):
item_1 = combined_list[i]
if item_1.collection == item_2.collection and \
item_1.canvas_title() == item_2.canvas_title():
pass
else:
filtered_list.append(item_1)
filtered_list.append(combined_list[-1])
return filtered_list
