cpython/Demo/curses/tclock.py at 2.7 · python/cpython · GitHub

Name: cpython/Demo/curses/tclock.py at 2.7 · python/cpython · GitHub
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#!/usr/bin/env python
#
# $Id$
#
# From tclock.c, Copyright Howard Jones <ha.jones@ic.ac.uk>, September 1994.

frommathimport*
importcurses, time

ASPECT=2.2

defsign(_x):
if_x<0: return-1
return1

defA2XY(angle, radius):
return (int(round(ASPECT*radius*sin(angle))),
int(round(radius*cos(angle))))

defplot(x, y, col):
stdscr.addch(y, x, col)

# draw a diagonal line using Bresenham's algorithm
defdline(pair, from_x, from_y, x2, y2, ch):
ifcurses.has_colors():
stdscr.attrset(curses.color_pair(pair))

dx=x2-from_x
dy=y2-from_y

ax=abs(dx*2)
ay=abs(dy*2)

sx=sign(dx)
sy=sign(dy)

x=from_x
y=from_y

ifax>ay:
d=ay-ax//2

whileTrue:
plot(x, y, ch)
ifx==x2:
return

ifd>=0:
y+=sy
d-=ax
x+=sx
d+=ay
else:
d=ax-ay//2

whileTrue:
plot(x, y, ch)
ify==y2:
return

ifd>=0:
x+=sx
d-=ay
y+=sy
d+=ax

defmain(win):
globalstdscr
stdscr=win

lastbeep=-1
my_bg=curses.COLOR_BLACK

stdscr.nodelay(1)
stdscr.timeout(0)
# curses.curs_set(0)
ifcurses.has_colors():
curses.init_pair(1, curses.COLOR_RED, my_bg)
curses.init_pair(2, curses.COLOR_MAGENTA, my_bg)
curses.init_pair(3, curses.COLOR_GREEN, my_bg)

cx= (curses.COLS-1) //2
cy=curses.LINES//2
ch=min( cy-1, int(cx//ASPECT) -1)
mradius= (3*ch) //4
hradius=ch//2
sradius=5*ch//6

foriinrange(0, 12):
sangle= (i+1) *2.0*pi/12.0
sdx, sdy=A2XY(sangle, sradius)

stdscr.addstr(cy-sdy, cx+sdx, "%d"% (i+1))

stdscr.addstr(0, 0,
"ASCII Clock by Howard Jones <ha.jones@ic.ac.uk>, 1994")

sradius=max(sradius-4, 8)

whileTrue:
curses.napms(1000)

tim=time.time()
t=time.localtime(tim)

hours=t[3] +t[4] /60.0
ifhours>12.0:
hours-=12.0

mangle=t[4] *2*pi/60.0
mdx, mdy=A2XY(mangle, mradius)

hangle=hours*2*pi/12.0
hdx, hdy=A2XY(hangle, hradius)

sangle=t[5] *2*pi/60.0
sdx, sdy=A2XY(sangle, sradius)

dline(3, cx, cy, cx+mdx, cy-mdy, ord('#'))

stdscr.attrset(curses.A_REVERSE)
dline(2, cx, cy, cx+hdx, cy-hdy, ord('.'))
stdscr.attroff(curses.A_REVERSE)

ifcurses.has_colors():
stdscr.attrset(curses.color_pair(1))

plot(cx+sdx, cy-sdy, ord('O'))

ifcurses.has_colors():
stdscr.attrset(curses.color_pair(0))

stdscr.addstr(curses.LINES-2, 0, time.ctime(tim))
stdscr.refresh()
if (t[5] %5) ==0andt[5] !=lastbeep:
lastbeep=t[5]
curses.beep()

ch=stdscr.getch()
ifch==ord('q'):
return0

plot(cx+sdx, cy-sdy, ord(' '))
dline(0, cx, cy, cx+hdx, cy-hdy, ord(' '))
dline(0, cx, cy, cx+mdx, cy-mdy, ord(' '))

curses.wrapper(main)