BetSize widgets bindings, refs #5

src/main.kv

@@ -32,7 +32,7 @@
         PushUp:
 
 
-<BetSize@BoxLayout>:
+<BetSize>:
     orientation: "vertical"
     MDLabel:
         text: "Bet size"
@@ -46,6 +46,8 @@
             size_hint_x: None
         MDSlider:
             id: bet_size_slider_id
+            range: 0, 10
+            step: 0.1
 
 <ChanceOfWinning>:
     orientation: "vertical"

src/main.py

@@ -94,33 +94,58 @@ class RollResultsScreen(SubScreen):
     pass
 
 
-class ChanceOfWinning(BoxLayout):
+class BetSize(BoxLayout):
 
     def __init__(self, **kwargs):
-        super(ChanceOfWinning, self).__init__(**kwargs)
+        super(BetSize, self).__init__(**kwargs)
         Clock.schedule_once(self._after_init)
 
     def _after_init(self, dt):
+        """
+        Binds events.
+        """
+        slider = self.ids.bet_size_slider_id
+        inpt = self.ids.bet_size_input_id
+
+        def cast_to(value): return round(float(value), 1)
+        BetSize.bind_slider_input(slider, inpt, cast_to)
+
+    @staticmethod
+    def bind_slider_input(slider, inpt, cast_to=float):
         """
         Binds slider <-> input both ways.
         """
         # slider -> input
-        chances_slider = self.ids.chances_slider_id
-        chances_input = self.ids.chances_input_id
-        chances_slider.bind(
+        slider.bind(
             value=lambda instance, value:
-            setattr(chances_input, 'text', str(int(value))))
+            setattr(inpt, 'text', str(cast_to(value))))
         # input -> slider
-        chances_input.bind(
+        inpt.bind(
             on_text_validate=lambda instance:
-            setattr(chances_slider, 'value', int(chances_input.text)))
+            setattr(slider, 'value', cast_to(inpt.text)))
         # also when unfocused
-        chances_input.bind(
+        inpt.bind(
             focus=lambda instance, focused:
-            chances_input.dispatch('on_text_validate')
+            inpt.dispatch('on_text_validate')
                 if not focused else False)
         # synchronises values slider <-> input once
-        chances_input.dispatch('on_text_validate')
+        inpt.dispatch('on_text_validate')
+
+
+class ChanceOfWinning(BoxLayout):
+
+    def __init__(self, **kwargs):
+        super(ChanceOfWinning, self).__init__(**kwargs)
+        Clock.schedule_once(self._after_init)
+
+    def _after_init(self, dt):
+        """
+        Binds events.
+        """
+        slider = self.ids.chances_slider_id
+        inpt = self.ids.chances_input_id
+        cast_to = int
+        BetSize.bind_slider_input(slider, inpt, cast_to)
 
 
 class RollScreen(Screen):