def set_value(self, row, column, value):
""" Return the Python value for the row and column.
Parameters
----------
row : sequence of int
The indices of the row as a sequence from root to leaf.
column : sequence of int
The indices of the column as a sequence of length 1.
Returns
-------
value : any
The value represented by the given row and column.
"""
if self.can_set_value(row, column):
index = tuple(row + column)
self.data[index] = value
self.values_changed = (row, column, row, column)
else:
raise DataViewSetError()
def set_editor_value(self, model, row, column, value):
""" Set the edited value.
Parameters
----------
model : AbstractDataModel
The data model holding the data.
row : sequence of int
The row in the data model being set.
column : sequence of int
The column in the data model being set.
value : any
The value being set.
Raises
-------
DataViewSetError
If the value cannot be set.
"""
if self.is_valid(model, row, column, value):
model.set_value(row, column, value)
else:
raise DataViewSetError("Invalid value set: {!r}".format(value))
def set_text(self, model, row, column, text):
""" Set the text of the underlying value.
Parameters
----------
model : AbstractDataModel
The data model holding the data.
row : sequence of int
The row in the data model being queried.
column : sequence of int
The column in the data model being queried.
text : str
The text to set.
Raises
-------
DataViewSetError
If the value cannot be set.
"""
try:
value = self.evaluate(self.unformat(text))
except ValueError:
raise DataViewSetError("Can't evaluate value: {!r}".format(text))
self.set_editor_value(model, row, column, value)