class WndManageEmissionLines(SecondaryWindow):
signal_selected_element_changed = Signal(str)
signal_update_element_selection_list = Signal()
signal_update_add_remove_btn_state = Signal(bool, bool)
signal_marker_state_changed = Signal(bool)
signal_parameters_changed = Signal()
def __init__(self, *, gpc, gui_vars):
super().__init__()
# Global processing classes
self.gpc = gpc
# Global GUI variables (used for control of GUI state)
self.gui_vars = gui_vars
# Threshold used for peak removal (displayed in lineedit)
self._remove_peak_threshold = self.gpc.get_peak_threshold()
self._enable_events = False
self._eline_list = [
] # List of emission lines (used in the line selection combo)
self._table_contents = [
] # Keep a copy of table contents (list of dict)
self._selected_eline = ""
self.initialize()
self._enable_events = True
# Marker state is reported by Matplotlib plot in 'line_plot' model
def cb(marker_state):
self.signal_marker_state_changed.emit(marker_state)
self.gpc.set_marker_reporter(cb)
self.signal_marker_state_changed.connect(
self.slot_marker_state_changed)
# Update button states
self._update_add_remove_btn_state()
self._update_add_edit_userpeak_btn_state()
self._update_add_edit_pileup_peak_btn_state()
def initialize(self):
self.setWindowTitle("PyXRF: Add/Remove Emission Lines")
self.resize(600, 600)
top_buttons = self._setup_select_elines()
self._setup_elines_table()
bottom_buttons = self._setup_action_buttons()
vbox = QVBoxLayout()
# Group of buttons above the table
vbox.addLayout(top_buttons)
# Tables
hbox = QHBoxLayout()
hbox.addWidget(self.tbl_elines)
vbox.addLayout(hbox)
vbox.addLayout(bottom_buttons)
self.setLayout(vbox)
self._set_tooltips()
def _setup_select_elines(self):
self.cb_select_all = QCheckBox("All")
self.cb_select_all.setChecked(True)
self.cb_select_all.toggled.connect(self.cb_select_all_toggled)
self.element_selection = ElementSelection()
# The following field should switched to 'editable' state from when needed
self.le_peak_intensity = LineEditReadOnly()
self.pb_add_eline = QPushButton("Add")
self.pb_add_eline.clicked.connect(self.pb_add_eline_clicked)
self.pb_remove_eline = QPushButton("Remove")
self.pb_remove_eline.clicked.connect(self.pb_remove_eline_clicked)
self.pb_user_peaks = QPushButton("New User Peak ...")
self.pb_user_peaks.clicked.connect(self.pb_user_peaks_clicked)
self.pb_pileup_peaks = QPushButton("New Pileup Peak ...")
self.pb_pileup_peaks.clicked.connect(self.pb_pileup_peaks_clicked)
self.element_selection.signal_current_item_changed.connect(
self.element_selection_item_changed)
vbox = QVBoxLayout()
hbox = QHBoxLayout()
hbox.addWidget(self.element_selection)
hbox.addWidget(self.le_peak_intensity)
hbox.addWidget(self.pb_add_eline)
hbox.addWidget(self.pb_remove_eline)
vbox.addLayout(hbox)
hbox = QHBoxLayout()
hbox.addWidget(self.cb_select_all)
hbox.addStretch(1)
hbox.addWidget(self.pb_user_peaks)
hbox.addWidget(self.pb_pileup_peaks)
vbox.addLayout(hbox)
# Wrap vbox into hbox, because it will be inserted into vbox
hbox = QHBoxLayout()
hbox.addLayout(vbox)
hbox.addStretch(1)
return hbox
def _setup_elines_table(self):
"""The table has only functionality necessary to demonstrate how it is going
to look. A lot more code is needed to actually make it run."""
self._validator_peak_height = QDoubleValidator()
self._validator_peak_height.setBottom(0.01)
self.tbl_elines = QTableWidget()
self.tbl_elines.setStyleSheet(
"QTableWidget::item{color: black;}"
"QTableWidget::item:selected{background-color: red;}"
"QTableWidget::item:selected{color: white;}")
self.tbl_labels = [
"", "Z", "Line", "E, keV", "Peak Int.", "Rel. Int.(%)", "CS"
]
self.tbl_cols_editable = ["Peak Int."]
self.tbl_value_min = {"Rel. Int.(%)": 0.1}
tbl_cols_resize_to_content = ["", "Z", "Line"]
self.tbl_elines.setColumnCount(len(self.tbl_labels))
self.tbl_elines.verticalHeader().hide()
self.tbl_elines.setHorizontalHeaderLabels(self.tbl_labels)
self.tbl_elines.setSelectionBehavior(QTableWidget.SelectRows)
self.tbl_elines.setSelectionMode(QTableWidget.SingleSelection)
self.tbl_elines.itemSelectionChanged.connect(
self.tbl_elines_item_selection_changed)
self.tbl_elines.itemChanged.connect(self.tbl_elines_item_changed)
header = self.tbl_elines.horizontalHeader()
for n, lbl in enumerate(self.tbl_labels):
# Set stretching for the columns
if lbl in tbl_cols_resize_to_content:
header.setSectionResizeMode(n, QHeaderView.ResizeToContents)
else:
header.setSectionResizeMode(n, QHeaderView.Stretch)
# Set alignment for the columns headers (HEADERS only)
if n == 0:
header.setDefaultAlignment(Qt.AlignCenter)
else:
header.setDefaultAlignment(Qt.AlignRight)
self.cb_sel_list = [] # List of checkboxes
def _setup_action_buttons(self):
self.pb_remove_rel = QPushButton("Remove Rel.Int.(%) <")
self.pb_remove_rel.clicked.connect(self.pb_remove_rel_clicked)
self.le_remove_rel = LineEditExtended("")
self._validator_le_remove_rel = QDoubleValidator()
self._validator_le_remove_rel.setBottom(0.01) # Some small number
self._validator_le_remove_rel.setTop(100.0)
self.le_remove_rel.setText(
self._format_threshold(self._remove_peak_threshold))
self._update_le_remove_rel_state()
self.le_remove_rel.textChanged.connect(self.le_remove_rel_text_changed)
self.le_remove_rel.editingFinished.connect(
self.le_remove_rel_editing_finished)
self.pb_remove_unchecked = QPushButton("Remove Unchecked Lines")
self.pb_remove_unchecked.clicked.connect(
self.pb_remove_unchecked_clicked)
hbox = QHBoxLayout()
hbox.addWidget(self.pb_remove_rel)
hbox.addWidget(self.le_remove_rel)
hbox.addStretch(1)
hbox.addWidget(self.pb_remove_unchecked)
return hbox
def _set_tooltips(self):
set_tooltip(self.cb_select_all,
"<b>Select/Deselect All</b> emission lines in the list")
set_tooltip(self.element_selection, "<b>Set active</b> emission line")
set_tooltip(self.le_peak_intensity,
"Set or modify <b>intensity</b> of the active peak.")
set_tooltip(self.pb_add_eline, "<b>Add</b> emission line to the list.")
set_tooltip(self.pb_remove_eline,
"<b>Remove</b> emission line from the list.")
set_tooltip(
self.pb_user_peaks,
"Open dialog box to add or modify parameters of the <b>user-defined peak</b>"
)
set_tooltip(
self.pb_pileup_peaks,
"Open dialog box to add or modify parameters of the <b>pileup peak</b>"
)
set_tooltip(self.tbl_elines,
"The list of the selected <b>emission lines</b>")
# set_tooltip(self.pb_update,
# "Update the internally stored list of selected emission lines "
# "and their parameters. This button is <b>deprecated</b>, but still may be "
# "needed in some situations. In future releases it will be <b>removed</b> or replaced "
# "with 'Accept' button. Substantial changes to the computational code is needed before "
# "it happens.")
# set_tooltip(self.pb_undo,
# "<b>Undo</b> changes to the table of selected emission lines. Doesn't always work.")
set_tooltip(
self.pb_remove_rel,
"<b>Remove emission lines</b> from the list if their relative intensity is less "
"then specified threshold.",
)
set_tooltip(
self.le_remove_rel,
"<b>Threshold</b> that controls which emission lines are removed "
"when <b>Remove Rel.Int.(%)</b> button is pressed.",
)
set_tooltip(self.pb_remove_unchecked,
"Remove <b>unchecked</b> emission lines from the list.")
def update_widget_state(self, condition=None):
# Update the state of the menu bar
state = not self.gui_vars["gui_state"]["running_computations"]
self.setEnabled(state)
# Hide the window if required by the program state
state_file_loaded = self.gui_vars["gui_state"]["state_file_loaded"]
state_model_exist = self.gui_vars["gui_state"]["state_model_exists"]
if not state_file_loaded or not state_model_exist:
self.hide()
if condition == "tooltips":
self._set_tooltips()
def fill_eline_table(self, table_contents):
self._table_contents = copy.deepcopy(table_contents)
self._enable_events = False
self.tbl_elines.clearContents()
# Clear the list of checkboxes
for cb in self.cb_sel_list:
cb.stateChanged.connect(self.cb_eline_state_changed)
self.cb_sel_list = []
self.tbl_elines.setRowCount(len(table_contents))
for nr, row in enumerate(table_contents):
sel_status = row["sel_status"]
row_data = [
None, row["z"], row["eline"], row["energy"], row["peak_int"],
row["rel_int"], row["cs"]
]
for nc, entry in enumerate(row_data):
label = self.tbl_labels[nc]
# Set alternating background colors for the table rows
# Make background for editable items a little brighter
brightness = 240 if label in self.tbl_cols_editable else 220
if nr % 2:
rgb_bckg = (255, brightness, brightness) # Light-red
else:
rgb_bckg = (brightness, 255, brightness) # Light-green
if nc == 0:
item = QWidget()
cb = CheckBoxNamed(name=f"{nr}")
item_hbox = QHBoxLayout(item)
item_hbox.addWidget(cb)
item_hbox.setAlignment(Qt.AlignCenter)
item_hbox.setContentsMargins(0, 0, 0, 0)
css1 = get_background_css(rgb_bckg,
widget="QCheckbox",
editable=False)
css2 = get_background_css(rgb_bckg,
widget="QWidget",
editable=False)
item.setStyleSheet(css2 + css1)
cb.setChecked(Qt.Checked if sel_status else Qt.Unchecked)
cb.stateChanged.connect(self.cb_eline_state_changed)
cb.setStyleSheet("QCheckBox {color: black;}")
self.cb_sel_list.append(cb)
self.tbl_elines.setCellWidget(nr, nc, item)
else:
s = None
# The case when the value (Rel. Int.) is limited from the bottom
# We don't want to print very small numbers here
if label in self.tbl_value_min:
v = self.tbl_value_min[label]
if isinstance(entry,
(float, np.float64)) and (entry < v):
s = f"<{v:.2f}"
if s is None:
if isinstance(entry, (float, np.float64)):
s = f"{entry:.2f}" if entry else "-"
else:
s = f"{entry}" if entry else "-"
item = QTableWidgetItem(s)
item.setTextAlignment(Qt.AlignRight | Qt.AlignVCenter)
# Set all columns not editable (unless needed)
if label not in self.tbl_cols_editable:
item.setFlags(item.flags() & ~Qt.ItemIsEditable)
brush = QBrush(QColor(*rgb_bckg))
item.setBackground(brush)
self.tbl_elines.setItem(nr, nc, item)
self._enable_events = True
# Update the rest of the widgets
self._update_widgets_based_on_table_state()
@Slot()
def update_widget_data(self):
# This is typically a new set of emission lines. Clear the selection both
# in the table and in the element selection tool.
self.element_selection.set_current_item("")
self.tbl_elines.clearSelection()
self._set_selected_eline("")
# Now update the tables
self._update_eline_selection_list()
self.update_eline_table()
self._update_add_remove_btn_state()
def pb_pileup_peaks_clicked(self):
data = {}
eline = self._selected_eline
if self.gpc.get_eline_name_category(eline) == "pileup":
logger.error(
f"Attempt to add pileup peak '{eline}' while another pileup peak is selected."
)
return
energy, marker_visible = self.gpc.get_suggested_manual_peak_energy()
best_guess = self.gpc.get_guessed_pileup_peak_components(energy=energy,
tolerance=0.1)
if best_guess is not None:
el1, el2, energy = best_guess
else:
# No peaks were found, enter peaks manually
el1, el2, energy = "", "", 0
data["element1"] = el1
data["element2"] = el2
data["energy"] = energy
data["range_low"], data[
"range_high"] = self.gpc.get_selected_energy_range()
if not marker_visible:
# We shouldn't end up here, but this will protect from crashing in case
# the button was not disabled (a bug).
msg = "Select location of the new peak center (energy)\nby clicking on the plot in 'Fit Model' tab"
msgbox = QMessageBox(QMessageBox.Information,
"User Input Required",
msg,
QMessageBox.Ok,
parent=self)
msgbox.exec()
else:
dlg = DialogPileupPeakParameters()
def func():
def f(e1, e2):
try:
name = self.gpc.generate_pileup_peak_name(e1, e2)
e = self.gpc.get_pileup_peak_energy(name)
except Exception:
e = 0
return e
return f
dlg.set_compute_energy_function(func())
dlg.set_parameters(data)
if dlg.exec():
print("Pileup peak is added")
try:
data = dlg.get_parameters()
eline1, eline2 = data["element1"], data["element2"]
eline = self.gpc.generate_pileup_peak_name(eline1, eline2)
self.gpc.add_peak_manual(eline)
self.update_eline_table() # Update the table
self.tbl_elines_set_selection(
eline) # Select new emission line
self._set_selected_eline(eline)
self._set_fit_status(False)
logger.info(f"New pileup peak {eline} was added")
except RuntimeError as ex:
msg = str(ex)
msgbox = QMessageBox(QMessageBox.Critical,
"Error",
msg,
QMessageBox.Ok,
parent=self)
msgbox.exec()
# Reload the table anyway (nothing is going to be selected)
self.update_eline_table()
def pb_user_peaks_clicked(self):
eline = self._selected_eline
# If current peak is user_defined peak
is_userpeak = self.gpc.get_eline_name_category(eline) == "userpeak"
if is_userpeak:
data = {}
data["enabled"] = True
data["name"] = eline
data["maxv"] = self.gpc.get_eline_intensity(eline)
data["energy"], data[
"fwhm"] = self.gpc.get_current_userpeak_energy_fwhm()
dlg = DialogEditUserPeakParameters()
dlg.set_parameters(data=data)
if dlg.exec():
print("Editing of user defined peak is completed")
try:
eline = data["name"]
data = dlg.get_parameters()
self.gpc.update_userpeak(data["name"], data["energy"],
data["maxv"], data["fwhm"])
self._set_fit_status(False)
logger.info(f"User defined peak {eline} was updated.")
except Exception as ex:
msg = str(ex)
msgbox = QMessageBox(QMessageBox.Critical,
"Error",
msg,
QMessageBox.Ok,
parent=self)
msgbox.exec()
# Reload the table anyway (nothing is going to be selected)
self.update_eline_table()
else:
data = {}
data["name"] = self.gpc.get_unused_userpeak_name()
data[
"energy"], marker_visible = self.gpc.get_suggested_manual_peak_energy(
)
if marker_visible:
dlg = DialogNewUserPeak()
dlg.set_parameters(data=data)
if dlg.exec():
try:
eline = data["name"]
self.gpc.add_peak_manual(eline)
self.update_eline_table() # Update the table
self.tbl_elines_set_selection(
eline) # Select new emission line
self._set_selected_eline(eline)
self._set_fit_status(False)
logger.info(f"New user defined peak {eline} is added")
except RuntimeError as ex:
msg = str(ex)
msgbox = QMessageBox(QMessageBox.Critical,
"Error",
msg,
QMessageBox.Ok,
parent=self)
msgbox.exec()
# Reload the table anyway (nothing is going to be selected)
self.update_eline_table()
else:
msg = ("Select location of the new peak center (energy)\n"
"by clicking on the plot in 'Fit Model' tab")
msgbox = QMessageBox(QMessageBox.Information,
"User Input Required",
msg,
QMessageBox.Ok,
parent=self)
msgbox.exec()
@Slot()
def pb_add_eline_clicked(self):
logger.debug("'Add line' clicked")
# It is assumed that this button is active only if an element is selected from the list
# of available emission lines. It can't be used to add user-defined peaks or pileup peaks.
eline = self._selected_eline
if eline:
try:
self.gpc.add_peak_manual(eline)
self.update_eline_table() # Update the table
self.tbl_elines_set_selection(
eline) # Select new emission line
self._set_fit_status(False)
except RuntimeError as ex:
msg = str(ex)
msgbox = QMessageBox(QMessageBox.Critical,
"Error",
msg,
QMessageBox.Ok,
parent=self)
msgbox.exec()
# Reload the table anyway (nothing is going to be selected)
self.update_eline_table()
@Slot()
def pb_remove_eline_clicked(self):
logger.debug("'Remove line' clicked")
eline = self._selected_eline
if eline:
# If currently selected line is the emission line (like Ca_K), we want
# it to remain selected after it is deleted. This means that nothing is selected
# in the table. For other lines, nothing should remain selected.
self.tbl_elines.clearSelection()
self.gpc.remove_peak_manual(eline)
self.update_eline_table() # Update the table
if self.gpc.get_eline_name_category(eline) != "eline":
eline = ""
# This will update widgets
self._set_selected_eline(eline)
self._set_fit_status(False)
def cb_select_all_toggled(self, state):
self._enable_events = False
eline_list, state_list = [], []
for n_row in range(self.tbl_elines.rowCount()):
eline = self._table_contents[n_row]["eline"]
# Do not deselect lines in category 'other'. They probably never to be deleted.
# They also could be deselected manually.
if self.gpc.get_eline_name_category(
eline) == "other" and not state:
to_check = True
else:
to_check = state
self.cb_sel_list[n_row].setChecked(
Qt.Checked if to_check else Qt.Unchecked)
eline_list.append(eline)
state_list.append(to_check)
self.gpc.set_checked_emission_lines(eline_list, state_list)
self._set_fit_status(False)
self._enable_events = True
def cb_eline_state_changed(self, name, state):
if self._enable_events:
n_row = int(name)
state = state == Qt.Checked
eline = self._table_contents[n_row]["eline"]
self.gpc.set_checked_emission_lines([eline], [state])
self._set_fit_status(False)
def tbl_elines_item_changed(self, item):
if self._enable_events:
n_row, n_col = self.tbl_elines.row(item), self.tbl_elines.column(
item)
# Value was changed
if n_col == 4:
text = item.text()
eline = self._table_contents[n_row]["eline"]
if self._validator_peak_height.validate(
text, 0)[0] != QDoubleValidator.Acceptable:
val = self._table_contents[n_row]["peak_int"]
self._enable_events = False
item.setText(f"{val:.2f}")
self._enable_events = True
self._set_fit_status(False)
else:
self.gpc.update_eline_peak_height(eline, float(text))
self.update_eline_table()
def tbl_elines_item_selection_changed(self):
sel_ranges = self.tbl_elines.selectedRanges()
# The table is configured to have one or no selected ranges
# 'Open' button should be enabled only if a range (row) is selected
if sel_ranges:
index = sel_ranges[0].topRow()
eline = self._table_contents[index]["eline"]
if self._enable_events:
self._enable_events = False
self._set_selected_eline(eline)
self.element_selection.set_current_item(eline)
self._enable_events = True
def tbl_elines_set_selection(self, eline):
"""
Select the row with emission line `eline` in the table. Deselect everything if
the emission line does not exist.
"""
index = self._get_eline_index_in_table(eline)
self.tbl_elines.clearSelection()
if index >= 0:
self.tbl_elines.selectRow(index)
def element_selection_item_changed(self, index, eline):
self.signal_selected_element_changed.emit(eline)
if self._enable_events:
self._enable_events = False
self._set_selected_eline(eline)
self.tbl_elines_set_selection(eline)
self._enable_events = True
def pb_remove_rel_clicked(self):
try:
self.gpc.remove_peaks_below_threshold(self._remove_peak_threshold)
except Exception as ex:
msg = str(ex)
msgbox = QMessageBox(QMessageBox.Critical,
"Error",
msg,
QMessageBox.Ok,
parent=self)
msgbox.exec()
self.update_eline_table()
# Update the displayed estimated peak amplitude value 'le_peak_intensity'
self._set_selected_eline(self._selected_eline)
self._set_fit_status(False)
def le_remove_rel_text_changed(self, text):
self._update_le_remove_rel_state(text)
def le_remove_rel_editing_finished(self):
text = self.le_remove_rel.text()
if self._validator_le_remove_rel.validate(
text, 0)[0] == QDoubleValidator.Acceptable:
self._remove_peak_threshold = float(text)
else:
self.le_remove_rel.setText(
self._format_threshold(self._remove_peak_threshold))
def pb_remove_unchecked_clicked(self):
try:
self.gpc.remove_unchecked_peaks()
except Exception as ex:
msg = str(ex)
msgbox = QMessageBox(QMessageBox.Critical,
"Error",
msg,
QMessageBox.Ok,
parent=self)
msgbox.exec()
# Reload the table
self.update_eline_table()
# Update the displayed estimated peak amplitude value 'le_peak_intensity'
self._set_selected_eline(self._selected_eline)
self._set_fit_status(False)
def _display_peak_intensity(self, eline):
v = self.gpc.get_eline_intensity(eline)
s = f"{v:.10g}" if v is not None else ""
self.le_peak_intensity.setText(s)
def _update_le_remove_rel_state(self, text=None):
if text is None:
text = self.le_remove_rel.text()
state = self._validator_le_remove_rel.validate(
text, 0)[0] == QDoubleValidator.Acceptable
self.le_remove_rel.setValid(state)
self.pb_remove_rel.setEnabled(state)
@Slot(str)
def slot_selection_item_changed(self, eline):
self.element_selection.set_current_item(eline)
@Slot(bool)
def slot_marker_state_changed(self, state):
# If userpeak is selected and plot is clicked (marker is set), then user
# should be allowed to add userpeak at a new location. So deselect the userpeak
# from the table (if it is selected)
logger.debug(
f"Vertical marker on the fit plot changed state to {state}.")
if state:
self._deselect_special_peak_in_table()
# Now update state of all buttons
self._update_add_remove_btn_state()
self._update_add_edit_userpeak_btn_state()
self._update_add_edit_pileup_peak_btn_state()
def _format_threshold(self, value):
return f"{value:.2f}"
def _deselect_special_peak_in_table(self):
"""Deselect userpeak if a userpeak is selected"""
if self.gpc.get_eline_name_category(
self._selected_eline) in ("userpeak", "pileup"):
# Clear all selections
self.tbl_elines_set_selection("")
self._set_selected_eline("")
# We also want to show marker at the new position
self.gpc.show_marker_at_current_position()
def _update_widgets_based_on_table_state(self):
index, eline = self._get_current_index_in_table()
if index >= 0:
# Selection exists. Update the state of element selection widget.
self.element_selection.set_current_item(eline)
else:
# No selection, update the state based on element selection widget.
eline = self._selected_eline
self.tbl_elines_set_selection(eline)
self._update_add_remove_btn_state(eline)
self._update_add_edit_userpeak_btn_state()
self._update_add_edit_pileup_peak_btn_state()
def _update_eline_selection_list(self):
self._eline_list = self.gpc.get_full_eline_list()
self.element_selection.set_item_list(self._eline_list)
self.signal_update_element_selection_list.emit()
@Slot()
def update_eline_table(self):
"""Update table of emission lines without changing anything else"""
eline_table = self.gpc.get_selected_eline_table()
self.fill_eline_table(eline_table)
def _get_eline_index_in_table(self, eline):
try:
index = [_["eline"] for _ in self._table_contents].index(eline)
except ValueError:
index = -1
return index
def _get_eline_index_in_list(self, eline):
try:
index = self._eline_list.index(eline)
except ValueError:
index = -1
return index
def _get_current_index_in_table(self):
sel_ranges = self.tbl_elines.selectedRanges()
# The table is configured to have one or no selected ranges
# 'Open' button should be enabled only if a range (row) is selected
if sel_ranges:
index = sel_ranges[0].topRow()
eline = self._table_contents[index]["eline"]
else:
index, eline = -1, ""
return index, eline
def _get_current_index_in_list(self):
index, eline = self.element_selection.get_current_item()
return index, eline
def _update_add_remove_btn_state(self, eline=None):
if eline is None:
index_in_table, eline = self._get_current_index_in_table()
index_in_list, eline = self._get_current_index_in_list()
else:
index_in_table = self._get_eline_index_in_table(eline)
index_in_list = self._get_eline_index_in_list(eline)
add_enabled, remove_enabled = True, True
if index_in_list < 0 and index_in_table < 0:
add_enabled, remove_enabled = False, False
else:
if index_in_table >= 0:
if self.gpc.get_eline_name_category(eline) != "other":
add_enabled = False
else:
add_enabled, remove_enabled = False, False
else:
remove_enabled = False
self.pb_add_eline.setEnabled(add_enabled)
self.pb_remove_eline.setEnabled(remove_enabled)
self.signal_update_add_remove_btn_state.emit(add_enabled,
remove_enabled)
def _update_add_edit_userpeak_btn_state(self):
enabled = True
add_peak = True
if self.gpc.get_eline_name_category(
self._selected_eline) == "userpeak":
add_peak = False
# Finally check if marker is set (you need it for adding peaks)
_, marker_set = self.gpc.get_suggested_manual_peak_energy()
if not marker_set and add_peak:
enabled = False
if add_peak:
btn_text = "New User Peak ..."
else:
btn_text = "Edit User Peak ..."
self.pb_user_peaks.setText(btn_text)
self.pb_user_peaks.setEnabled(enabled)
def _update_add_edit_pileup_peak_btn_state(self):
enabled = True
if self.gpc.get_eline_name_category(self._selected_eline) == "pileup":
enabled = False
# Finally check if marker is set (you need it for adding peaks)
_, marker_set = self.gpc.get_suggested_manual_peak_energy()
# Ignore set marker for userpeaks (marker is used to display location of userpeaks)
if self.gpc.get_eline_name_category(
self._selected_eline) == "userpeak":
marker_set = False
if not marker_set:
enabled = False
self.pb_pileup_peaks.setEnabled(enabled)
def _set_selected_eline(self, eline):
self._update_add_remove_btn_state(eline)
if eline != self._selected_eline:
self._selected_eline = eline
self.gpc.set_selected_eline(eline)
self._display_peak_intensity(eline)
else:
# Peak intensity may change in some circumstances, so renew the displayed value.
self._display_peak_intensity(eline)
# Update button states after 'self._selected_eline' is set
self._update_add_edit_userpeak_btn_state()
self._update_add_edit_pileup_peak_btn_state()
def _set_fit_status(self, status):
self.gui_vars["gui_state"]["state_model_fit_exists"] = status
self.signal_parameters_changed.emit()
class WndDetailedFittingParams(SecondaryWindow):
# Signal that is sent (to main window) to update global state of the program
update_global_state = Signal()
computations_complete = Signal(object)
def __init__(self, *, window_title, gpc, gui_vars):
super().__init__()
# Global processing classes
self.gpc = gpc
# Global GUI variables (used for control of GUI state)
self.gui_vars = gui_vars
# Reference to the main window. The main window will hold
# references to all non-modal windows that could be opened
# from multiple places in the program.
self.ref_main_window = self.gui_vars["ref_main_window"]
self.update_global_state.connect(
self.ref_main_window.update_widget_state)
self._enable_events = False
self._dialog_data = {}
self._load_dialog_data()
self._selected_index = 0
self._selected_eline = "-"
self.setWindowTitle(window_title)
self.setMinimumWidth(1100)
self.setMinimumHeight(500)
self.resize(1100, 500)
hbox_el_select = self._setup_element_selection()
self._setup_table()
vbox = QVBoxLayout()
vbox.addLayout(hbox_el_select)
vbox.addWidget(self.table)
self.setLayout(vbox)
self.update_form_data()
self._enable_events = True
self._data_changed = False
def _setup_element_selection(self):
self.combo_element_sel = QComboBox()
self.combo_element_sel.setMinimumWidth(200)
self.combo_element_sel.currentIndexChanged.connect(
self.combo_element_sel_current_index_changed)
self.pb_apply = QPushButton("Apply")
self.pb_apply.setEnabled(False)
self.pb_apply.clicked.connect(self.pb_apply_clicked)
self.pb_cancel = QPushButton("Cancel")
self.pb_cancel.setEnabled(False)
self.pb_cancel.clicked.connect(self.pb_cancel_clicked)
hbox = QHBoxLayout()
hbox.addWidget(QLabel("Select element:"))
hbox.addWidget(self.combo_element_sel)
hbox.addStretch(1)
hbox.addWidget(self.pb_apply)
hbox.addWidget(self.pb_cancel)
return hbox
def _setup_table(self):
self._value_keys = ("value", "min", "max")
# Labels for horizontal header
labels_presets = [
fitting_preset_names[_] for _ in self._fit_strategy_list
]
labels_values = [value_names[_] for _ in self._value_keys]
self.tbl_labels = ["Name", "E, keV"] + labels_values + labels_presets
# Labels for editable columns
self.tbl_cols_editable = ("Value", "Min", "Max")
# Labels for the columns that contain combo boxes
self.tbl_cols_combobox = labels_presets
# The list of columns with fixed size
self.tbl_cols_stretch = ("Value", "Min", "Max")
# Table item representation if different from default
self.tbl_format = {
"E, keV": ".4f",
"Value": ".8g",
"Min": ".8g",
"Max": ".8g"
}
# Combobox items. All comboboxes in the table contain identical list of items.
self.combo_items = self._bound_options
self._combo_list = []
self.table = QTableWidget()
self.table.setColumnCount(len(self.tbl_labels))
self.table.verticalHeader().hide()
self.table.setHorizontalHeaderLabels(self.tbl_labels)
self.table.setStyleSheet("QTableWidget::item{color: black;}")
header = self.table.horizontalHeader()
for n, lbl in enumerate(self.tbl_labels):
# Set stretching for the columns
if lbl in self.tbl_cols_stretch:
header.setSectionResizeMode(n, QHeaderView.Stretch)
else:
header.setSectionResizeMode(n, QHeaderView.ResizeToContents)
self.table.itemChanged.connect(self.tbl_elines_item_changed)
def _fill_table(self, table_contents):
self._enable_events = False
# Clear the list of combo boxes
for item in self._combo_list:
item.currentIndexChanged.disconnect(
self.combo_strategy_current_index_changed)
self._combo_list = []
self.table.clearContents()
self.table.setRowCount(len(table_contents))
for nr, row in enumerate(table_contents):
n_fit_strategy = 0
row_name = row[0]
for nc, entry in enumerate(row):
label = self.tbl_labels[nc]
# Set alternating background colors for the table rows
# Make background for editable items a little brighter
brightness = 240 if label in self.tbl_cols_editable else 220
if nr % 2:
rgb_bckg = (255, brightness, brightness)
else:
rgb_bckg = (brightness, 255, brightness)
if label not in self.tbl_cols_combobox:
if label in self.tbl_format and not isinstance(entry, str):
fmt = self.tbl_format[self.tbl_labels[nc]]
s = ("{:" + fmt + "}").format(entry)
else:
s = f"{entry}"
item = QTableWidgetItem(s)
if nc > 0:
item.setTextAlignment(Qt.AlignRight | Qt.AlignVCenter)
# Set all columns not editable (unless needed)
if label not in self.tbl_cols_editable:
item.setFlags(item.flags() & ~Qt.ItemIsEditable)
# Make all items not selectable (we are not using selections)
item.setFlags(item.flags() & ~Qt.ItemIsSelectable)
# Note, that there is no way to set style sheet for QTableWidgetItem
item.setBackground(QBrush(QColor(*rgb_bckg)))
self.table.setItem(nr, nc, item)
else:
if n_fit_strategy < len(self._fit_strategy_list):
combo_name = f"{row_name},{self._fit_strategy_list[n_fit_strategy]}"
else:
combo_name = ""
n_fit_strategy += 1
item = ComboBoxNamedNoWheel(name=combo_name)
# Set text color for QComboBox widget (necessary if the program is used with Dark theme)
pal = item.palette()
pal.setColor(QPalette.ButtonText, Qt.black)
item.setPalette(pal)
# Set text color for drop-down view (necessary if the program is used with Dark theme)
pal = item.view().palette()
pal.setColor(QPalette.Text, Qt.black)
item.view().setPalette(pal)
css1 = get_background_css(rgb_bckg,
widget="QComboBox",
editable=False)
css2 = get_background_css(rgb_bckg,
widget="QWidget",
editable=False)
item.setStyleSheet(css2 + css1)
item.addItems(self.combo_items)
if item.findText(entry) < 0:
logger.warning(
f"Text '{entry}' is not found. The ComboBox is not set properly."
)
item.setCurrentText(entry) # Try selecting the item anyway
self.table.setCellWidget(nr, nc, item)
item.currentIndexChanged.connect(
self.combo_strategy_current_index_changed)
self._combo_list.append(item)
self._enable_events = True
def _set_tooltips(self):
set_tooltip(self.pb_apply, "Save changes and <b>update plots</b>.")
set_tooltip(self.pb_cancel, "<b>Discard</b> all changes.")
set_tooltip(
self.combo_element_sel,
"Select K, L or M <b>emission line</b> to edit the optimization parameters "
"used for the line during total spectrum fitting.",
)
set_tooltip(
self.table,
"Edit optimization parameters for the selected emission line. "
"Processing presets may be configured by specifying optimization strategy "
"for each parameter may be selected. A preset for each fitting step "
"of the total spectrum fitting may be selected in <b>Model</b> tab.",
)
def combo_element_sel_current_index_changed(self, index):
self._selected_index = index
try:
self._selected_eline = self._eline_list[index]
except Exception:
self._selected_eline = "-"
self._update_table()
def combo_strategy_current_index_changed(self, name, index):
if self._enable_events:
try:
name_row, name_strategy = name.split(",")
option = self._bound_options[index]
self._param_dict[name_row][name_strategy] = option
except Exception as ex:
logger.error(
f"Error occurred while changing strategy options: {ex}")
self._data_changed = True
self._validate_all()
def tbl_elines_item_changed(self, item):
if self._enable_events:
try:
n_row, n_col = self.table.row(item), self.table.column(item)
n_key = n_col - 2
if n_key < 0 or n_key >= len(self._value_keys):
raise RuntimeError(f"Incorrect column {n_col}")
value_key = self._value_keys[n_key]
eline_key = self._table_contents[n_row][0]
try:
value = float(item.text())
self._param_dict[eline_key][value_key] = value
except Exception:
value = self._param_dict[eline_key][value_key]
item.setText(f"{value:.8g}")
self._data_changed = True
self._validate_all()
except Exception as ex:
logger.error(
f"Error occurred while setting edited value: {ex}")
def pb_apply_clicked(self):
"""Save dialog data and update plots"""
self.save_form_data()
def pb_cancel_clicked(self):
"""Reload data (discard all changes)"""
self.update_form_data()
def _set_combo_element_sel_items(self):
element_list = self._eline_list
self.combo_element_sel.clear()
self.combo_element_sel.addItems(element_list)
# Deselect all (this should clear the table)
self.select_eline(self._selected_eline)
def _set_dialog_data(self, dialog_data):
self._param_dict = dialog_data["param_dict"]
self._eline_list = dialog_data["eline_list"]
self._eline_key_dict = dialog_data["eline_key_dict"]
self._eline_energy_dict = dialog_data["eline_energy_dict"]
self._other_param_list = dialog_data["other_param_list"]
self._fit_strategy_list = dialog_data["fit_strategy_list"]
self._bound_options = dialog_data["bound_options"]
def _show_all(self):
selected_eline = self._selected_eline
self._set_combo_element_sel_items()
self.select_eline(selected_eline)
self._update_table()
def _update_table(self):
self._enable_events = False
eline_list = []
if "shared" in self._selected_eline.lower(): # Shared parameters
eline_list = self._other_param_list
energy_list = [""] * len(eline_list)
elif self._selected_eline == self._eline_list[
self._selected_index]: # Emission lines
eline = self._selected_eline
eline_list = self._eline_key_dict[eline]
energy_list = self._eline_energy_dict[eline]
self._table_contents = []
for n, key in enumerate(eline_list):
data = [
key,
energy_list[n],
self._param_dict[key]["value"],
self._param_dict[key]["min"],
self._param_dict[key]["max"],
]
for strategy in self._fit_strategy_list:
data.append(self._param_dict[key][strategy])
self._table_contents.append(data)
self._fill_table(self._table_contents)
self._enable_events = True
def select_eline(self, eline):
if eline in self._eline_list:
index = self._eline_list.index(eline)
elif self._eline_list:
index = 0
eline = self._eline_list[0]
else:
index = -1
eline = "-"
self._selected_eline = eline
self._selected_index = index
self.combo_element_sel.setCurrentIndex(index)
self._update_table()
def update_widget_state(self, condition=None):
# Update the state of the menu bar
state = not self.gui_vars["gui_state"]["running_computations"]
self.setEnabled(state)
if condition == "tooltips":
self._set_tooltips()
def _validate_all(self):
self.pb_apply.setEnabled(self._data_changed)
self.pb_cancel.setEnabled(self._data_changed)
def _load_dialog_data(self):
...
def _save_dialog_data_function(self):
...
def update_form_data(self):
self._load_dialog_data()
self._show_all()
self._data_changed = False
self._validate_all()
def save_form_data(self):
if self._data_changed:
f_save_data = self._save_dialog_data_function()
def cb(dialog_data):
try:
f_save_data(dialog_data)
success, msg = True, ""
except Exception as ex:
success, msg = False, str(ex)
return {"success": success, "msg": msg}
self._compute_in_background(cb,
self.slot_save_form_data,
dialog_data=self._dialog_data)
@Slot(object)
def slot_save_form_data(self, result):
self._recover_after_compute(self.slot_save_form_data)
if not result["success"]:
msg = result["msg"]
msgbox = QMessageBox(QMessageBox.Critical,
"Failed to Apply Fit Parameters",
msg,
QMessageBox.Ok,
parent=self)
msgbox.exec()
else:
self._data_changed = False
self._validate_all()
self.gui_vars["gui_state"]["state_model_fit_exists"] = False
self.update_global_state.emit()
def _compute_in_background(self, func, slot, *args, **kwargs):
"""
Run function `func` in a background thread. Send the signal
`self.computations_complete` once computation is finished.
Parameters
----------
func: function
Reference to a function that is supposed to be executed at the background.
The function return value is passed as a signal parameter once computation is
complete.
slot: qtpy.QtCore.Slot or None
Reference to a slot. If not None, then the signal `self.computation_complete`
is connected to this slot.
args, kwargs
arguments of the function `func`.
"""
signal_complete = self.computations_complete
def func_to_run(func, *args, **kwargs):
class RunTask(QRunnable):
def run(self):
result_dict = func(*args, **kwargs)
signal_complete.emit(result_dict)
return RunTask()
if slot is not None:
self.computations_complete.connect(slot)
self.gui_vars["gui_state"]["running_computations"] = True
self.update_global_state.emit()
QThreadPool.globalInstance().start(func_to_run(func, *args, **kwargs))
def _recover_after_compute(self, slot):
"""
The function should be called after the signal `self.computations_complete` is
received. The slot should be the same as the one used when calling
`self.compute_in_background`.
"""
if slot is not None:
self.computations_complete.disconnect(slot)
self.gui_vars["gui_state"]["running_computations"] = False
self.update_global_state.emit()
