如何正确移动垫?

时间:2012-03-09 11:42:22

标签: python ncurses

r = 0
mypad.addstr(0, 0, "Test...")

while 1:
    mypad.refresh(r, 0, 1, 1, 10, 10)
    c = mypad.getch()

    if c == curses.KEY_UP:
        r -= 1
    elif c == curses.KEY_DOWN:
        r += 1
    elif c == ord('q'): break 
显示

Test...,但当我向上/向下按时它就消失了。

更新

实际上当添加更多行时,我发现它会滚动,但只能向上,而不是低于初始位置。无论有多大r,文本都将保留在第一行。我错过了什么?

1 个答案:

答案 0 :(得分:2)

检查上/下箭头的值,并将其与curses.KEY_UP/DOWN进行比较。请参阅My cursor keys do not work

例如,键盘在我的终端上返回3个字符:

import curses

with curses_screen() as stdscr:
    pad = curses.newpad(100, 100)
    pad.addstr(0,0, curses.longname())
    for i in range(1, 10):
        pad.addstr(i,0, str(i))

    coord = 5, 5, 20, 75
    pad.refresh(0, 0, *coord)

    KEY_UP, KEY_DOWN = 'AB'
    y = 0
    for c in iter(pad.getkey, 'q'):
        if c in '\x1b\x5b': continue # skip escape seq
        y -= (c == KEY_UP)
        y += (c == KEY_DOWN)
        y = min(max(y, 0), 9)
        pad.refresh(y, 0, *coord)

Definition of curses_screen()