tclock.py :  » Language-Interface » ChinesePython » chinesepython2.1.3-0.4 » Demo » curses » Python Open Source

Home
Python Open Source
1.3.1.2 Python
2.Ajax
3.Aspect Oriented
4.Blog
5.Build
6.Business Application
7.Chart Report
8.Content Management Systems
9.Cryptographic
10.Database
11.Development
12.Editor
13.Email
14.ERP
15.Game 2D 3D
16.GIS
17.GUI
18.IDE
19.Installer
20.IRC
21.Issue Tracker
22.Language Interface
23.Log
24.Math
25.Media Sound Audio
26.Mobile
27.Network
28.Parser
29.PDF
30.Project Management
31.RSS
32.Search
33.Security
34.Template Engines
35.Test
36.UML
37.USB Serial
38.Web Frameworks
39.Web Server
40.Web Services
41.Web Unit
42.Wiki
43.Windows
44.XML
Python Open Source » Language Interface » ChinesePython 
ChinesePython » chinesepython2.1.3 0.4 » Demo » curses » tclock.py
#!/usr/bin/env python
#
# $Id: tclock.py,v 1.2 2002/04/12 09:44:01 sof34 Exp $
#
# 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
    ch = min( cy-1, int(cx / ASPECT) - 1) 
    mradius = (3 * ch) / 4
    hradius = ch / 2
    sradius = 5 * ch / 6

    for i in range(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)
    
    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)
www.java2java.com | Contact Us
Copyright 2009 - 12 Demo Source and Support. All rights reserved.
All other trademarks are property of their respective owners.