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refinement_controller.py
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refinement_controller.py
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# coding=UTF-8
# ex:ts=4:sw=4:et=on
# Copyright (c) 2013, Mathijs Dumon
# All rights reserved.
# Complete license can be found in the LICENSE file.
import logging
logger = logging.getLogger(__name__)
import gi
gi.require_version('Gtk', '3.0')
from gi.repository import Gtk
import sys
from mvc.adapters.gtk_support.dialogs.dialog_factory import DialogFactory
from mvc.support.cancellable_thread import CancellableThread
from mvc.support.gui_loop import run_when_idle, add_timeout_call,\
remove_timeout_call
from pyxrd.generic.asynchronous.providers import get_status
from pyxrd.generic.views.treeview_tools import new_text_column, new_pb_column, new_toggle_column
from pyxrd.generic.mathtext_support import create_pb_from_mathtext
from pyxrd.generic.controllers import DialogController
from pyxrd.refinement.views.refiner_view import RefinerView
from pyxrd.refinement.controllers.refiner_controller import RefinerController
class RefinementController(DialogController):
auto_adapt_included = [
"refine_method_index",
"refinables",
"make_psp_plots",
]
@property
def treemodel(self):
return self.model.refinables
def setup_refinables_tree_view(self, store, widget):
"""
Setup refinables TreeView layout
"""
widget.set_show_expanders(True)
if sys.platform == "win32":
def get_label(column, cell, model, itr, user_data=None):
ref_prop = model.get_tree_node_object(itr)
cell.set_property("text", ref_prop.get_text_title())
return
widget.append_column(new_text_column('Name/Prop', xalign=0.0, data_func=get_label))
else:
# Labels are parsed for mathtext markup into pb's:
def get_pb(column, cell, model, itr, user_data=None):
ref_prop = model.get_tree_node_object(itr)
try:
if not hasattr(ref_prop, "pb") or not ref_prop.pb:
ref_prop.pb = create_pb_from_mathtext(
ref_prop.title,
align='left',
weight='medium'
)
cell.set_property("pixbuf", ref_prop.pb)
except RuntimeError:
logger.warning("An error occured when trying to convert a property title to a PixBuf")
raise
return
widget.append_column(new_pb_column('Name/Prop', xalign=0.0, data_func=get_pb))
# Editable floats:
def get_value(column, cell, model, itr, *args):
col = column.get_col_attr('markup')
try:
value = model.get_value(itr, col)
value = "%.5f" % value
except TypeError: value = ""
cell.set_property("markup", value)
return
def on_float_edited(rend, path, new_text, model, col):
itr = model.get_iter(path)
try:
model.set_value(itr, col, float(new_text))
except ValueError:
return False
return True
def_float_args = {
"sensitive_col": store.c_refinable,
"editable_col": store.c_refinable,
"visible_col": store.c_refinable,
"data_func": get_value
}
widget.append_column(new_text_column(
"Value", markup_col=store.c_value,
edited_callback=(
on_float_edited,
(store, store.c_value,)
), **def_float_args
))
widget.append_column(new_text_column(
"Min", markup_col=store.c_value_min,
edited_callback=(
on_float_edited,
(store, store.c_value_min,)
), **def_float_args
))
widget.append_column(new_text_column(
"Max", markup_col=store.c_value_max,
edited_callback=(
on_float_edited,
(store, store.c_value_max,)
), **def_float_args
))
# The 'refine' checkbox:
widget.append_column(new_toggle_column(
"Refine",
toggled_callback=(self.refine_toggled, (store,)),
resizable=False,
expand=False,
active_col=store.c_refine,
sensitive_col=store.c_refinable,
activatable_col=store.c_refinable,
visible_col=store.c_refinable
))
def _update_method_options_store(self):
"""
Update the method options tree store (when a new method is selected)
"""
tv = self.view['tv_method_options']
store = Gtk.ListStore(str, str)
method = self.model.get_refinement_method()
for arg in method.options:
description = getattr(type(method), arg).description
store.append([arg, description])
tv.set_model(store)
return tv
def _setup_method_options_treeview(self):
"""
Initial method options tree view layout & behavior setup
"""
# Update the method options store to match the currently selected
# refinement method
tv = self._update_method_options_store()
# The name of the option:
tv.append_column(new_text_column("Name", text_col=1))
# The value of the option:
def get_value(column, cell, model, itr, *args):
option_name, = tv.get_model().get(itr, 0)
method = self.model.get_refinement_method()
cell.set_property("sensitive", True)
cell.set_property("editable", True)
cell.set_property("markup", "%g" % getattr(method, option_name))
return
def on_value_edited(rend, path, new_text, col):
store = tv.get_model()
itr = store.get_iter(path)
option_name, = store.get(itr, 0)
method = self.model.get_refinement_method()
try:
setattr(method, option_name, new_text)
except ValueError:
pass
return True
tv.append_column(new_text_column(
"Value", text_col=0,
data_func=get_value,
edited_callback=(on_value_edited, (0,)),
))
def register_view(self, view):
# Create the method treeview:
self._setup_method_options_treeview()
# Update the server status:
self.view.update_server_status(get_status())
def cleanup(self):
if hasattr(self, "view"):
del self.view
if hasattr(self, "results_view"):
del self.results_view
if hasattr(self, "results_controller"):
del self.results_controller
if hasattr(self, "model"):
self.relieve_model(self.model)
# ------------------------------------------------------------
# Notifications of observable properties
# ------------------------------------------------------------
@DialogController.observe("refine_method_index", assign=True)
def on_prop_changed(self, model, prop_name, info):
self._update_method_options_store()
# ------------------------------------------------------------
# GTK Signal handlers
# ------------------------------------------------------------
def on_cancel(self):
if self.view is not None:
self.view.hide()
self.parent.view.parent.show()
def refine_toggled(self, cell, path, model):
if model is not None:
itr = model.get_iter(path)
model.set_value(itr, model.c_refine, not cell.get_active())
return True
def on_btn_randomize_clicked(self, event):
self.model.randomize()
def on_auto_restrict_clicked(self, event):
self.model.auto_restrict()
def _launch_gui_updater(self, refiner):
def _on_update_gui():
if self.view is not None and refiner is not None:
self.view.update_refinement_info(
refiner.history.last_residual,
refiner.status.message,
get_status()
)
return True
else:
return False
add_timeout_call(500, _on_update_gui)
return _on_update_gui
def _launch_refine_thread(self, refiner, gui_timeout_id):
@run_when_idle
def thread_completed(*args, **kwargs):
""" Called when the refinement is completed """
self.thread = None
remove_timeout_call(gui_timeout_id)
self.view.stop_spinner()
# Make some plots:
if self.model.make_psp_plots:
self.view.update_refinement_status("Processing...")
self.results_controller.generate_images()
# Set the labels:
self.results_controller.update_labels()
# Hide our shit:
self.view.hide_refinement_info()
self.view.hide()
# Show results:
self.results_view.present()
thread = CancellableThread(refiner.refine, thread_completed)
thread.start()
return thread
def _connect_cancel_button(self, refiner, gui_timeout_id, thread):
# Connect the cancel button (custom widget):
def thread_cancelled(*args, **kwargs):
""" Called when the refinement is cancelled by the user """
remove_timeout_call(gui_timeout_id)
self.view.stop_spinner()
self.view.update_refinement_status("Cancelling...")
thread.cancel()
self.view.hide_refinement_info()
self.view.connect_cancel_request(thread_cancelled)
@DialogController.status_message("Refining mixture...", "refine_mixture")
def on_refine_clicked(self, event):
with self.model.mixture.needs_update.hold():
with self.model.mixture.data_changed.hold():
if len(self.model.mixture.specimens) > 0:
# Create the refiner object
with DialogFactory.error_dialog_handler(
"There was an error when creating the refinement setup:\n{}",
parent=self.view.get_toplevel(), reraise=False):
refiner = self.model.get_refiner()
# Setup results controller
self.results_view = RefinerView(parent=self.view.parent)
self.results_controller = RefinerController(
refiner=refiner,
model=self.model,
view=self.results_view,
parent=self
)
# Gtk timeout loop for our GUI updating:
gui_timeout_id = self._launch_gui_updater(refiner)
# This creates a thread that will run the refiner.refine method:
thread = self._launch_refine_thread(refiner, gui_timeout_id)
# Connect the cancel button:
self._connect_cancel_button(refiner, gui_timeout_id, thread)
# Show the context updates in the gui:
self.view.show_refinement_info()
self.view.start_spinner()
else:
DialogFactory.get_information_dialog(
"Cannot refine an empty mixture!", parent=self.view.get_toplevel()
).run()
pass # end of class