Mini Shell

#! /usr/bin/python2.7
#
# $Id$
#
# (n)curses exerciser in Python, an interactive test for the curses
# module. Currently, only the panel demos are ported.

import curses
from curses import panel

def wGetchar(win = None):
    if win is None: win = stdscr
    return win.getch()

def Getchar():
    wGetchar()

#
# Panels tester
#
def wait_a_while():
    if nap_msec == 1:
        Getchar()
    else:
        curses.napms(nap_msec)

def saywhat(text):
    stdscr.move(curses.LINES - 1, 0)
    stdscr.clrtoeol()
    stdscr.addstr(text)

def mkpanel(color, rows, cols, tly, tlx):
    win = curses.newwin(rows, cols, tly, tlx)
    pan = panel.new_panel(win)
    if curses.has_colors():
        if color == curses.COLOR_BLUE:
            fg = curses.COLOR_WHITE
        else:
            fg = curses.COLOR_BLACK
        bg = color
        curses.init_pair(color, fg, bg)
        win.bkgdset(ord(' '), curses.color_pair(color))
    else:
        win.bkgdset(ord(' '), curses.A_BOLD)

    return pan

def pflush():
    panel.update_panels()
    curses.doupdate()

def fill_panel(pan):
    win = pan.window()
    num = pan.userptr()[1]

    win.move(1, 1)
    win.addstr("-pan%c-" % num)
    win.clrtoeol()
    win.box()

    maxy, maxx = win.getmaxyx()
    for y in range(2, maxy - 1):
        for x in range(1, maxx - 1):
            win.move(y, x)
            win.addch(num)

def demo_panels(win):
    global stdscr, nap_msec, mod
    stdscr = win
    nap_msec = 1
    mod = ["test", "TEST", "(**)", "*()*", "<-->", "LAST"]

    stdscr.refresh()

    for y in range(0, curses.LINES - 1):
        for x in range(0, curses.COLS):
            stdscr.addstr("%d" % ((y + x) % 10))
    for y in range(0, 1):
        p1 = mkpanel(curses.COLOR_RED,
                     curses.LINES // 2 - 2,
                     curses.COLS // 8 + 1,
                     0,
                     0)
        p1.set_userptr("p1")

        p2 = mkpanel(curses.COLOR_GREEN,
                     curses.LINES // 2 + 1,
                     curses.COLS // 7,
                     curses.LINES // 4,
                     curses.COLS // 10)
        p2.set_userptr("p2")

        p3 = mkpanel(curses.COLOR_YELLOW,
                     curses.LINES // 4,
                     curses.COLS // 10,
                     curses.LINES // 2,
                     curses.COLS // 9)
        p3.set_userptr("p3")

        p4 = mkpanel(curses.COLOR_BLUE,
                     curses.LINES // 2 - 2,
                     curses.COLS // 8,
                     curses.LINES // 2 - 2,
                     curses.COLS // 3)
        p4.set_userptr("p4")

        p5 = mkpanel(curses.COLOR_MAGENTA,
                     curses.LINES // 2 - 2,
                     curses.COLS // 8,
                     curses.LINES // 2,
                     curses.COLS // 2 - 2)
        p5.set_userptr("p5")

        fill_panel(p1)
        fill_panel(p2)
        fill_panel(p3)
        fill_panel(p4)
        fill_panel(p5)
        p4.hide()
        p5.hide()
        pflush()
        saywhat("press any key to continue")
        wait_a_while()

        saywhat("h3 s1 s2 s4 s5;press any key to continue")
        p1.move(0, 0)
        p3.hide()
        p1.show()
        p2.show()
        p4.show()
        p5.show()
        pflush()
        wait_a_while()

        saywhat("s1; press any key to continue")
        p1.show()
        pflush()
        wait_a_while()

        saywhat("s2; press any key to continue")
        p2.show()
        pflush()
        wait_a_while()

        saywhat("m2; press any key to continue")
        p2.move(curses.LINES // 3 + 1, curses.COLS // 8)
        pflush()
        wait_a_while()

        saywhat("s3; press any key to continue")
        p3.show()
        pflush()
        wait_a_while()

        saywhat("m3; press any key to continue")
        p3.move(curses.LINES // 4 + 1, curses.COLS // 15)
        pflush()
        wait_a_while()

        saywhat("b3; press any key to continue")
        p3.bottom()
        pflush()
        wait_a_while()

        saywhat("s4; press any key to continue")
        p4.show()
        pflush()
        wait_a_while()

        saywhat("s5; press any key to continue")
        p5.show()
        pflush()
        wait_a_while()

        saywhat("t3; press any key to continue")
        p3.top()
        pflush()
        wait_a_while()

        saywhat("t1; press any key to continue")
        p1.show()
        pflush()
        wait_a_while()

        saywhat("t2; press any key to continue")
        p2.show()
        pflush()
        wait_a_while()

        saywhat("t3; press any key to continue")
        p3.show()
        pflush()
        wait_a_while()

        saywhat("t4; press any key to continue")
        p4.show()
        pflush()
        wait_a_while()

        for itmp in range(0, 6):
            w4 = p4.window()
            w5 = p5.window()

            saywhat("m4; press any key to continue")
            w4.move(curses.LINES // 8, 1)
            w4.addstr(mod[itmp])
            p4.move(curses.LINES // 6, itmp * curses.COLS // 8)
            w5.move(curses.LINES // 6, 1)
            w5.addstr(mod[itmp])
            pflush()
            wait_a_while()

            saywhat("m5; press any key to continue")
            w4.move(curses.LINES // 6, 1)
            w4.addstr(mod[itmp])
            p5.move(curses.LINES // 3 - 1, itmp * 10 + 6)
            w5.move(curses.LINES // 8, 1)
            w5.addstr(mod[itmp])
            pflush()
            wait_a_while()

        saywhat("m4; press any key to continue")
        p4.move(curses.LINES // 6, (itmp + 1) * curses.COLS // 8)
        pflush()
        wait_a_while()

        saywhat("t5; press any key to continue")
        p5.top()
        pflush()
        wait_a_while()

        saywhat("t2; press any key to continue")
        p2.top()
        pflush()
        wait_a_while()

        saywhat("t1; press any key to continue")
        p1.top()
        pflush()
        wait_a_while()

        saywhat("d2; press any key to continue")
        del p2
        pflush()
        wait_a_while()

        saywhat("h3; press any key to continue")
        p3.hide()
        pflush()
        wait_a_while()

        saywhat("d1; press any key to continue")
        del p1
        pflush()
        wait_a_while()

        saywhat("d4; press any key to continue")
        del p4
        pflush()
        wait_a_while()

        saywhat("d5; press any key to continue")
        del p5
        pflush()
        wait_a_while()
        if nap_msec == 1:
            break
        nap_msec = 100

#
# one fine day there'll be the menu at this place
#
curses.wrapper(demo_panels)