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#! /usr/local/bin/python
# 'clock' -- 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 mainloop
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
def main():
win = makewindow()
del win
mainloop.mainloop()
def makewindow():
stdwin.setdefwinsize(DEFWIDTH, DEFHEIGHT + stdwin.lineheight())
win = stdwin.open('clock')
setdimensions(win)
win.set = 1 # True when alarm is set
win.time = 11*60 + 40 # Time when alarm must go off
win.ring = 0 # True when alarm is ringing
win.dispatch = cdispatch
mainloop.register(win)
settimer(win)
return win
def cdispatch(event):
type, win, detail = event
if type == WE_DRAW:
drawproc(win, detail)
elif type == WE_TIMER:
settimer(win)
drawproc(win, EVERYWHERE)
elif type in MOUSE_EVENTS:
mouseclick(win, type, detail)
elif type == WE_ACTIVATE:
if win.ring:
# Turn the ringing off
win.ring = 0
win.begindrawing().invert(win.mainarea)
elif type == WE_SIZE:
win.change(EVERYWHERE)
setdimensions(win)
elif type == WE_CLOSE:
mainloop.unregister(win)
win.close()
def setdimensions(win):
width, height = win.getwinsize()
height = height - stdwin.lineheight()
if width < height: size = width
else: size = height
halfwidth = width/2
halfheight = height/2
win.center = halfwidth, halfheight
win.radius = size*45/100
win.width = width
win.height = height
win.corner = width, height
win.mainarea = ORIGIN, win.corner
win.lineheight = stdwin.lineheight()
win.farcorner = width, height + win.lineheight
win.statusarea = (0, height), win.farcorner
win.fullarea = ORIGIN, win.farcorner
def settimer(win):
now = time.time()
hours, minutes, seconds = win.times = calctime(now)
delay = 61 - seconds
win.settimer(10 * delay)
minutes = minutes + hours*60
if win.ring:
# Is it time to stop the alarm ringing?
since = (minutes - win.time + 720) % 720
if since >= 5:
# Stop it now
win.ring = 0
else:
# Ring again, once every minute
stdwin.fleep()
elif win.set and minutes == win.time:
# Start the alarm ringing
win.ring = 1
stdwin.fleep()
def drawproc(win, area):
hours, minutes, seconds = win.times
d = win.begindrawing()
d.cliprect(area)
d.erase(EVERYWHERE)
d.circle(win.center, win.radius)
d.line(win.center, calcpoint(win, hours*30 + minutes/2, 0.6))
d.line(win.center, calcpoint(win, minutes*6, 1.0))
str = "%02d:%02d" % (hours, minutes)
p = (win.width - d.textwidth(str))/2, win.height * 3 / 4
d.text(p, str)
if win.set:
drawalarm(win, d)
drawalarmtime(win, d)
if win.ring:
d.invert(win.mainarea)
def mouseclick(win, type, detail):
d = win.begindrawing()
if win.ring:
# First turn the ringing off
win.ring = 0
d.invert(win.mainarea)
h, v = detail[0]
ch, cv = win.center
x, y = h-ch, cv-v
dist = sqrt(x*x + y*y) / float(win.radius)
if dist > 1.2:
if win.set:
drawalarm(win, d)
erasealarmtime(win, d)
win.set = 0
elif dist < 0.8:
if not win.set:
win.set = 1
drawalarm(win, d)
drawalarmtime(win, 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 <> win.time or not win.set:
if win.set:
drawalarm(win, d)
erasealarmtime(win, d)
win.set = 1
win.time = atime
drawalarm(win, d)
drawalarmtime(win, d)
def drawalarm(win, d):
p1 = calcpoint(win, float(win.time)/2.0, 1.02)
p2 = calcpoint(win, float(win.time)/2.0 - 4.0, 1.1)
p3 = calcpoint(win, float(win.time)/2.0 + 4.0, 1.1)
d.xorline(p1, p2)
d.xorline(p2, p3)
d.xorline(p3, p1)
def erasealarmtime(win, d):
d.erase(win.statusarea)
def drawalarmtime(win, d):
# win.time is in the range 0..720 with origin at 12 o'clock
# Convert to hours (0..12) and minutes (12*(0..60))
hh = win.time/60
mm = win.time%60
str = 'Alarm@%02d:%02d' % (hh, mm)
p1 = (win.width - d.textwidth(str))/2, win.height
d.text(p1, str)
def calcpoint(win, degrees, size):
alpha = pi/2.0 - float(degrees) * pi/180.0
x, y = cos(alpha), sin(alpha)
h, v = win.center
r = float(win.radius)
return h + int(x*size*r), v - int(y*size*r)
def calctime(now):
hours, minutes, seconds = time.localtime(now)[3:6]
hours = hours % 12
return hours, minutes, seconds
main()
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