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()