1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
|
# Test for TextEditor 'invalid' trait.
#
# Look for:
#
# background color should be correctly to the error indicating color
# whenever the name is invalid (all whitespace). In particular:
#
# background color should be set at initialization.
from traits.api import Bool, HasTraits, Property, Str
from traitsui.api import Item, View
from traitsui.api import TextEditor
class Person(HasTraits):
name = Str
invalid = Property(Bool, depends_on='name')
def _get_invalid(self):
# Name is valid iff it doesn't consist entirely of whitespace.
stripped_name = self.name.strip()
return stripped_name == ''
traits_view = View(
Item('name', editor=TextEditor(invalid='invalid')),
)
if __name__ == '__main__':
Person().configure_traits()
|
