1 files changed, 202 insertions, 0 deletions
diff --git a/lib/clock.py b/lib/clock.py
new file mode 100644
index 0000000..ec5301e
--- /dev/null
+++ b/lib/clock.py
@@ -0,0 +1,202 @@
+# 'klok' -- A simple alarm clock
+
+# The alarm can be set at 5 minute intervals on a 12 hour basis.
+# It is controlled with the mouse:
+# - Click and drag around the circle to set the alarm.
+# - Click far outside the circle to clear the alarm.
+# - Click near the center to set the alarm at the last time set.
+# The alarm time is indicated by a small triangle just outside the circle,
+# and also by a digital time at the bottom.
+# The indicators disappear when the alarm is not set.
+# When the alarm goes off, it beeps every minute for five minutes,
+# and the clock turns into inverse video.
+# Click or activate the window to turn the ringing off.
+
+import stdwin
+from stdwinevents import WE_MOUSE_DOWN, WE_MOUSE_MOVE, WE_MOUSE_UP, \
+ WE_TIMER, WE_DRAW, WE_SIZE, WE_CLOSE, WE_ACTIVATE
+import time
+from math import sin, cos, atan2, pi, sqrt
+
+DEFWIDTH, DEFHEIGHT = 200, 200
+
+mouse_events = (WE_MOUSE_DOWN, WE_MOUSE_MOVE, WE_MOUSE_UP)
+origin = 0, 0
+faraway = 2000, 2000
+everywhere = origin, faraway
+
+class struct(): pass # A class to declare featureless objects
+
+G = struct() # Global variables (most set in setdimensions())
+G.tzdiff = 5*3600 # THINK computes UCT from local time assuming EST!
+
+A = struct() # Globals used by the alarm
+A.set = 1 # True when alarm is set
+A.time = 11*60 + 40 # Time when alarm must go off
+A.ring = 0 # True when alarm is ringing
+
+def main():
+ try:
+ realmain()
+ except KeyboardInterrupt:
+ print 'KeyboardInterrupt'
+ finally:
+ G.w = 0
+
+def realmain():
+ setdimensions(DEFWIDTH, DEFHEIGHT)
+ stdwin.setdefwinsize(G.farcorner)
+ G.w = stdwin.open('klok')
+ settimer()
+ while 1:
+ type, window, detail = stdwin.getevent()
+ if type = WE_DRAW:
+ drawproc(detail)
+ elif type = WE_TIMER:
+ settimer()
+ drawproc(everywhere)
+ elif type in mouse_events:
+ mouseclick(type, detail)
+ elif type = WE_ACTIVATE:
+ if A.ring:
+ # Turn the ringing off
+ A.ring = 0
+ G.w.begindrawing().invert(G.mainarea)
+ elif type = WE_SIZE:
+ G.w.change(everywhere)
+ width, height = G.w.getwinsize()
+ height = height - stdwin.lineheight()
+ setdimensions(width, height)
+ elif type = WE_CLOSE:
+ break
+
+def setdimensions(width, height):
+ if width < height: size = width
+ else: size = height
+ halfwidth = width/2
+ halfheight = height/2
+ G.center = halfwidth, halfheight
+ G.radius = size*45/100
+ G.width = width
+ G.height = height
+ G.corner = width, height
+ G.mainarea = origin, G.corner
+ G.lineheight = stdwin.lineheight()
+ G.farcorner = width, height + G.lineheight
+ G.statusarea = (0, height), G.farcorner
+ G.fullarea = origin, G.farcorner
+
+def settimer():
+ now = getlocaltime()
+ G.times = calctime(now)
+ delay = 61 - now % 60
+ G.w.settimer(10 * delay)
+ minutes = (now/60) % 720
+ if A.ring:
+ # Is it time to stop the alarm ringing?
+ since = (minutes - A.time + 720) % 720
+ if since >= 5:
+ # Stop it now
+ A.ring = 0
+ else:
+ # Ring again, once every minute
+ stdwin.fleep()
+ elif A.set and minutes = A.time:
+ # Start the alarm ringing
+ A.ring = 1
+ stdwin.fleep()
+
+def drawproc(area):
+ hours, minutes, seconds = G.times
+ d = G.w.begindrawing()
+ d.cliprect(area)
+ d.erase(everywhere)
+ d.circle(G.center, G.radius)
+ d.line(G.center, calcpoint(hours*30 + minutes/2, 0.6))
+ d.line(G.center, calcpoint(minutes*6, 1.0))
+ str = dd(hours) + ':' + dd(minutes)
+ p = (G.width - d.textwidth(str))/2, G.height * 3 / 4
+ d.text(p, str)
+ if A.set:
+ drawalarm(d)
+ drawalarmtime(d)
+ if A.ring:
+ d.invert(G.mainarea)
+
+def mouseclick(type, detail):
+ d = G.w.begindrawing()
+ if A.ring:
+ # First turn the ringing off
+ A.ring = 0
+ d.invert(G.mainarea)
+ h, v = detail[0]
+ ch, cv = G.center
+ x, y = h-ch, cv-v
+ dist = sqrt(x*x + y*y) / float(G.radius)
+ if dist > 1.2:
+ if A.set:
+ drawalarm(d)
+ erasealarmtime(d)
+ A.set = 0
+ elif dist < 0.8:
+ if not A.set:
+ A.set = 1
+ drawalarm(d)
+ drawalarmtime(d)
+ else:
+ # Convert to half-degrees (range 0..720)
+ alpha = atan2(y, x)
+ hdeg = alpha*360.0/pi
+ hdeg = 180.0 - hdeg
+ hdeg = (hdeg + 720.0) % 720.0
+ atime = 5*int(hdeg/5.0 + 0.5)
+ if atime <> A.time or not A.set:
+ if A.set:
+ drawalarm(d)
+ erasealarmtime(d)
+ A.set = 1
+ A.time = atime
+ drawalarm(d)
+ drawalarmtime(d)
+
+def drawalarm(d):
+ p1 = calcpoint(float(A.time)/2.0, 1.02)
+ p2 = calcpoint(float(A.time)/2.0 - 4.0, 1.1)
+ p3 = calcpoint(float(A.time)/2.0 + 4.0, 1.1)
+ d.xorline(p1, p2)
+ d.xorline(p2, p3)
+ d.xorline(p3, p1)
+
+def erasealarmtime(d):
+ d.erase(G.statusarea)
+
+def drawalarmtime(d):
+ # A.time is in the range 0..720 with origin at 12 o'clock
+ # Convert to hours (0..12) and minutes (12*(0..60))
+ hh = A.time/60
+ mm = A.time%60
+ str = 'Alarm@' + dd(hh) + ':' + dd(mm)
+ p1 = (G.width - d.textwidth(str))/2, G.height
+ d.text(p1, str)
+
+def calctime(now):
+ seconds = now % 60
+ minutes = (now/60) % 60
+ hours = (now/3600) % 12
+ return hours, minutes, seconds
+
+def calcpoint(degrees, size):
+ alpha = pi/2.0 - float(degrees) * pi/180.0
+ x, y = cos(alpha), sin(alpha)
+ h, v = G.center
+ r = float(G.radius)
+ return h + int(x*size*r), v - int(y*size*r)
+
+def dd(n):
+ s = `n`
+ return '0'*(2-len(s)) + s
+
+def getlocaltime():
+ return time.time() - G.tzdiff
+
+#main()