source: sasview/src/sas/qtgui/SlicerModel.py @ a9b568c

ESS_GUIESS_GUI_DocsESS_GUI_batch_fittingESS_GUI_bumps_abstractionESS_GUI_iss1116ESS_GUI_iss879ESS_GUI_iss959ESS_GUI_openclESS_GUI_orderingESS_GUI_sync_sascalc
Last change on this file since a9b568c was 161713c, checked in by Piotr Rozyczko <rozyczko@…>, 8 years ago

Validate Table View entries in 2D slicer parameter editor - prototype for future use in fitting

  • Property mode set to 100644
File size: 2.0 KB
Line 
1from PyQt4 import QtGui
2from PyQt4 import QtCore
3
4import sas.qtgui.GuiUtils as GuiUtils
5
6class SlicerModel(object):
7    def __init__(self):
8        # Model representation of local parameters
9        self._model = QtGui.QStandardItemModel()
10
11        self.update_model = True
12        self._model.itemChanged.connect(self.setParamsFromModel)
13
14    def setModelFromParams(self):
15        """
16        Set up the Qt model for data handling between controls
17        """
18        parameters = self.getParams()
19        self._model.removeRows( 0, self._model.rowCount() )
20        # Crete/overwrite model items
21        for parameter in parameters.keys():
22            item1 = QtGui.QStandardItem(parameter)
23            item2 = QtGui.QStandardItem(GuiUtils.formatNumber(parameters[parameter]))
24            self._model.appendRow([item1, item2])
25        self._model.setHeaderData(0, QtCore.Qt.Horizontal, QtCore.QVariant("Parameter"))
26        self._model.setHeaderData(1, QtCore.Qt.Horizontal, QtCore.QVariant("Value"))
27
28    def setParamsFromModel(self, item):
29        """
30        Set up the params dictionary based on the model content.
31        """
32        params = self.getParams()
33        index = self._model.indexFromItem(item)
34        row_index = index.row()
35        param_name = str(self._model.item(row_index, 0).text())
36        params[param_name] = float(self._model.item(row_index, 1).text())
37
38        self.update_model = False
39        self.setParams(params)
40        self.update_model = True
41
42    def model(self):
43        '''getter for the model'''
44        return self._model
45
46    def getParams(self):
47        ''' pure virtual '''
48        raise NotImplementedError("Parameter getter must be implemented in derived class.")
49
50    def setParams(self):
51        ''' pure virtual '''
52        raise NotImplementedError("Parameter setter must be implemented in derived class.")
53
54    def validate(self):
55        ''' pure virtual '''
56        raise NotImplementedError("Validator must be implemented in derived class.")
57
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