Source code for sas.qtgui.Plotting.SlicerModel

from PyQt5 import QtGui
from PyQt5 import QtCore

import sas.qtgui.Utilities.GuiUtils as GuiUtils

[docs]class SlicerModel(object): def __init__(self): # Model representation of local parameters self._model = QtGui.QStandardItemModel() self.update_model = True self._model.itemChanged.connect(self.setParamsFromModelItem)
[docs] def setModelFromParams(self): """ Set up the Qt model for data handling between controls """ parameters = self.getParams() self._model.removeRows( 0, self._model.rowCount() ) # Crete/overwrite model items for parameter in list(parameters.keys()): item1 = QtGui.QStandardItem(parameter) item2 = QtGui.QStandardItem(GuiUtils.formatNumber(parameters[parameter])) self._model.appendRow([item1, item2]) self._model.setHeaderData(0, QtCore.Qt.Horizontal, "Parameter") self._model.setHeaderData(1, QtCore.Qt.Horizontal, "Value")
[docs] def setParamsFromModel(self): """ Set up the params dictionary based on the current model content. """ params = self.getParams() for row_index in range(self._model.rowCount()): #index = self._model.indexFromItem(item) #row_index = index.row() param_name = str(self._model.item(row_index, 0).text()) params[param_name] = float(self._model.item(row_index, 1).text()) self.update_model = False self.setParams(params) self.update_model = True
[docs] def setParamsFromModelItem(self, item): """ Set up the params dictionary for the parameter in item. """ params = self.getParams() index = self._model.indexFromItem(item) row_index = index.row() param_name = str(self._model.item(row_index, 0).text()) params[param_name] = float(self._model.item(row_index, 1).text()) self.update_model = False self.setParams(params) self.update_model = True
[docs] def model(self): '''getter for the model''' return self._model
[docs] def getParams(self): ''' pure virtual ''' raise NotImplementedError("Parameter getter must be implemented in derived class.")
[docs] def setParams(self): ''' pure virtual ''' raise NotImplementedError("Parameter setter must be implemented in derived class.")
[docs] def validate(self): ''' pure virtual ''' raise NotImplementedError("Validator must be implemented in derived class.")