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"""
Editor factory that overrides certain attributes of the default editor.
For example, the default editor for Range(low=0, high=1500) has
'1500' as the upper label. To change it to 'Max' instead, use
my_range = Range(low=0, high=1500,
editor=DefaultOverride(high_label='Max'))
Alternatively, the override can also be specified in the view:
View(Item('my_range', editor=DefaultOverride(high_label='Max'))
"""
from __future__ import absolute_import
from traits.api import Dict
from ..editor_factory import EditorFactory
class DefaultOverride(EditorFactory):
"""Editor factory for selectively overriding certain parameters
of the default editor.
"""
_overrides = Dict
def __init__(self, *args, **overrides):
EditorFactory.__init__(self, *args)
self._overrides = overrides
def _customise_default(self, editor_kind, ui, object, name,
description, parent):
"""
Obtain the given trait's default editor and set the parameters
specified in `overrides` above.
"""
trait = object.trait(name)
editor_factory = trait.trait_type.create_editor()
for option in self._overrides:
setattr(editor_factory, option, self._overrides[option])
editor = getattr(editor_factory, editor_kind)(ui, object, name,
description, parent)
return editor
def simple_editor(self, ui, object, name, description, parent):
return self._customise_default('simple_editor', ui, object,
name, description, parent)
def custom_editor(self, ui, object, name, description, parent):
return self._customise_default('custom_editor', ui, object,
name, description, parent)
def text_editor(self, ui, object, name, description, parent):
return self._customise_default('text_editor', ui, object,
name, description, parent)
def readonly_editor(self, ui, object, name, description, parent):
return self._customise_default('readonly_editor', ui, object,
name, description, parent)
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