bugfix

kivyblocks/price.py

@@ -0,0 +1,47 @@
+
+from kivy.uix.label import Label
+from kivy.properties import NumericProperty
+from kivy.factory import Factory
+
+from kivyblocks.uitype import view_register, get_value
+
+class Price(Label):
+	dec = NumericProperty(4)
+	old_price = NumericProperty(None)
+	price = NumericProperty(None)
+	nor_color = ColorProperty([0.9,0.9,0.9,1]) # white
+	inc_color = ColorProperty([0.9,0,0,1]) 	# red
+	dec_color = ColorProperty([0,0.9,0,1])	# green
+	def __init__(self, **kw):
+		super(Price, self).__init__(text='', **kw)
+
+	def on_price(self, price):
+		if self.price is None:
+			return
+		if not isinstance(self.price, float) and \
+					not isinstance(self.price, int):
+			return
+
+		f = '%%.0%df' % self.dec
+		self.text = f % price
+		if self.old_price is None:
+			self.color = self.nor_color
+		elif self.price > self.old_price:
+			self.color = self.inc_color
+		elif self.price < self.old_price:
+			self.color = self.dec_color
+		else:
+			self.color = nor_color
+		self.old_price = self.price
+
+Factory.register('Price', Price)
+
+def build_view_price_widget(desc, rec=None):
+	v = get_value(desc, rec=rec)
+	return Factory.Price(price=v,
+					font_size=CSize(1),
+					halign='right',
+					valign='middle'
+	)
+
+view_register('price', build_view_price_widget)

kivyblocks/register.py

@@ -41,6 +41,7 @@ from .paging import PageLoader
 from .dateinput import DateInput
 from .block_test import BlockTest
 from .hirarchy import Hirarchy
+from .price import Price
 
 r = Factory.register
 if kivy.platform in ['win','linux', 'macosx']: