wimsy · February 27, 2015 18:05 · Feb 27, 2015
diff --git a/randomized_timer.py b/randomized_timer.py
@@ -0,0 +1,89 @@
+# randomized_timer.py
+#
+# A simple app to conduct randomized time trials based on the Stopwatch.py 
+# sample app in [Pythonista](http://omz-software.com). 
+#
+# This script takes an array of choices (strings) and randomly selects one on 
+# launch in Pythonista. You then tap the screen to start a stopwatch and tap it
+# again to stop it. When you tap it a third time, the choice presented to you 
+# plus the elapsed time in seconds are added to a callback URL to call a 
+# separate script in the iOS [Workflow](https://workflow.is/) app for further 
+# processing. 
+#
+# The workflow I use with the Workflow app is availanble here: 
+# https://workflow.is/workflows/813286b8841d4688945f7c2bbdff74db
+#
+# You can set up your choices by modifying the elements in the array for 
+# self.route in the setup function for the Stopwatch class.
+
+from scene import *
+from time import time
+from math import modf
+from itertools import chain
+import string
+import webbrowser
+from numpy.random import choice
+
+class Stopwatch (Scene):
+	def setup(self):
+		self.start_time = 0.0
+		self.stop_time = 0.0
+		self.running = False
+		self.route = choice(['Light', 'NON-light'])
+		#Render all the digits as individual images:
+		self.numbers = {}
+		font_size = 150 if self.size.w > 700 else 60
+		for s in chain(string.digits, [':', '.']):
+			#render_text returns a tuple of
+			#an image name and its size.
+			self.numbers[s] = render_text(s, 'Helvetica-Bold', font_size)
+
+	def should_rotate(self, orientation):
+		return True
+
+	def draw(self):
+		background(0, 0, 0)
+		#Format the elapsed time (dt):
+		dt = 0.0
+		text(self.route, font_size=48.0,x = 100, y=500)
+		if self.running:
+			dt = time() - self.start_time
+		else:
+			dt = self.stop_time - self.start_time
+		minutes = dt / 60
+		seconds = dt % 60
+		centiseconds = modf(dt)[0] * 100
+		s = '%02d:%02d.%02d' % (minutes, seconds, centiseconds)
+		#Determine overall size for centering:
+		w, h = 0.0, self.numbers['0'][1].h
+		for c in s:
+			size = self.numbers[c][1]
+			w += size.w
+		#Draw the digits:
+		x = int(self.size.w * 0.5 - w * 0.5)
+		y = int(self.size.h * 0.5 - h * 0.5)
+		for c in s:
+			img, size = self.numbers[c]
+			image(img, x, y, size.w, size.h)
+			x += size.w
+
+	def touch_began(self, touch):
+		if not self.running:
+			if self.start_time > 0:
+				#Reset:
+				export_time = self.stop_time - self.start_time
+				self.start_time = 0.0
+				self.stop_time = 0.0
+
+				url = 'workflow://x-callback-url/run-workflow?name=route_time&input=text&text=' + self.route + '%20' + str(export_time)
+				webbrowser.open(url)
+			else:
+				#Start:
+				self.start_time = time()
+				self.running = True
+		else:
+			#Stop:
+			self.stop_time = time()
+			self.running = False
+
+run(Stopwatch())