Curses demos contributed by Thomas Gellekum <tg@FreeBSD.org>.
ncurses.py requires panel support, and therefore doesn't work yet.
diff --git a/Demo/curses/tclock.py b/Demo/curses/tclock.py
new file mode 100644
index 0000000..adc0056
--- /dev/null
+++ b/Demo/curses/tclock.py
@@ -0,0 +1,149 @@
+#!/usr/bin/env python
+#
+# $Id$
+#
+# From tclock.c, Copyright Howard Jones <ha.jones@ic.ac.uk>, September 1994.
+
+from math import *
+import curses, time
+
+ASPECT = 2.2
+
+def sign(_x):
+ if _x < 0: return -1
+ return 1
+
+def A2XY(angle, radius):
+ return int(round(ASPECT * radius * sin(angle))), int(round(radius * cos(angle)))
+
+def plot(x, y, col):
+ stdscr.addch(y, x, col)
+
+# draw a diagonal line using Bresenham's algorithm
+def dline(pair, from_x, from_y, x2, y2, ch):
+ if curses.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
+
+ if ax > ay:
+ d = ay - ax / 2
+
+ while 1:
+ plot(x, y, ch)
+ if x == x2:
+ return
+
+ if d >= 0:
+ y += sy
+ d -= ax
+ x += sx
+ d += ay
+ else:
+ d = ax - ay / 2
+
+ while 1:
+ plot(x, y, ch)
+ if y == y2:
+ return
+
+ if d >= 0:
+ x += sx
+ d -= ay
+ y += sy
+ d += ax
+
+def main(win):
+ global stdscr
+ stdscr = win
+
+ lastbeep = -1
+ my_bg = curses.COLOR_BLACK
+
+ stdscr.nodelay(1)
+ stdscr.timeout(0)
+# curses.curs_set(0)
+ if curses.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
+ if cx > cy:
+ ch = cy
+ else:
+ ch = cx
+ mradius = (3 * cy) / 4
+ hradius = cy / 2
+ sradius = (2 * cy) / 3
+
+ for i in range(0, 12):
+ sangle = (i + 1) * 2.0 * pi / 12.0
+ sradius = 5 * cy / 6
+ 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 = 8
+ while 1:
+ curses.napms(1000)
+
+ tim = time.time()
+ t = time.localtime(tim)
+
+ hours = t[3] + t[4] / 60.0
+ if hours > 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)
+
+ if curses.has_colors():
+ stdscr.attrset(curses.color_pair(1))
+
+ plot(cx + sdx, cy - sdy, ord('O'))
+
+ if curses.has_colors():
+ stdscr.attrset(curses.color_pair(0))
+
+ stdscr.addstr(curses.LINES - 2, 0, time.ctime(tim))
+ stdscr.refresh()
+ if (t[5] % 5) == 0 and t[5] != lastbeep:
+ lastbeep = t[5]
+ curses.beep()
+
+ ch = stdscr.getch()
+ if ch == ord('q'):
+ return 0
+
+ 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)