widgets: checkbox: Add a label property

The checkbox uses the _im(mutable) idiom to minimize the RAM overhead
of its immutable properties (position and label). However it can be useful
to retrieve the label to provide a property accessor.

Signed-off-by: Daniel Thompson <daniel@redfelineninja.org.uk>

1 files changed, 4 insertions, 0 deletions

diff --git a/wasp/widgets.py b/wasp/widgets.py
index 07bdf0c..8509fbb 100644
--- a/wasp/widgets.py
+++ b/wasp/widgets.py
@@ -221,6 +221,10 @@ class Checkbox():
         self._im = (x, y, label)
         self.state = False
 
+    @property
+    def label(self):
+        return self._im[2]
+
     def draw(self):
         """Draw the checkbox and label."""
         draw = wasp.watch.drawable