From 5af7abb75a87146e58f9a4180cbbca630e1c705d Mon Sep 17 00:00:00 2001
From: Brady James Garvin <bgarvin@cse.unl.edu>
Date: Mon, 26 Jul 2021 11:08:46 -0500
Subject: [PATCH] Prefer sending data from the view over retrieving it from the
controller.
---
main.py | 15 +++++++++++++--
triangle.kv | 15 ++++++---------
2 files changed, 19 insertions(+), 11 deletions(-)
diff --git a/main.py b/main.py
index 4990bdc..adcd1c8 100644
--- a/main.py
+++ b/main.py
@@ -13,6 +13,9 @@ class Classification(Enum):
class TriangleApp(App):
+ a = StringProperty('')
+ b = StringProperty('')
+ c = StringProperty('')
classification = StringProperty()
@staticmethod
@@ -36,15 +39,23 @@ class TriangleApp(App):
return Classification.SCALENE
def update(self):
- ids = self.root.ids
try:
- self.classification = TriangleApp.classify(int(ids.a.text), int(ids.b.text), int(ids.c.text)).value
+ self.classification = TriangleApp.classify(int(self.a), int(self.b), int(self.c)).value
except ValueError:
self.classification = f'{Classification.INVALID.value} (non-integer sides)'
def on_start(self):
self.update()
+ def on_a(self, _, __):
+ self.update()
+
+ def on_b(self, _, __):
+ self.update()
+
+ def on_c(self, _, __):
+ self.update()
+
if __name__ == '__main__':
app = TriangleApp()
diff --git a/triangle.kv b/triangle.kv
index f9de87b..8468ab8 100644
--- a/triangle.kv
+++ b/triangle.kv
@@ -13,12 +13,11 @@ BoxLayout:
Widget:
size_hint: (0.25, 1.0)
TextInput:
- id: a
multiline: False
write_tab: False
- text: ''
+ text: app.a
font_size: sp(24)
- on_text: app.update()
+ on_text: app.a = self.text
Widget:
BoxLayout:
orientation: 'horizontal'
@@ -31,12 +30,11 @@ BoxLayout:
Widget:
size_hint: (0.25, 1.0)
TextInput:
- id: b
multiline: False
write_tab: False
- text: ''
+ text: app.b
font_size: sp(24)
- on_text: app.update()
+ on_text: app.b = self.text
Widget:
BoxLayout:
orientation: 'horizontal'
@@ -49,12 +47,11 @@ BoxLayout:
Widget:
size_hint: (0.25, 1.0)
TextInput:
- id: c
multiline: False
write_tab: False
- text: ''
+ text: app.c
font_size: sp(24)
- on_text: app.update()
+ on_text: app.c = self.text
Widget:
Widget:
BoxLayout:
--
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