如何在 Python/Curses 子窗口中滚动文本? [英] How to scroll text in Python/Curses subwindow?

问题描述

在我使用 Curses 的 Python 脚本中，我有一个 subwin，其中分配了一些文本.因为文本长度可能比窗口大小长，所以文本应该是可滚动的.

In my Python script which uses Curses, I have a subwin to which some text is assigned. Because the text length may be longer than the window size, the text should be scrollable.

Curses 窗口似乎没有任何 CSS-溢出"之类的属性.Python/Curses 文档在这方面也相当含糊.

It doesn't seem that there is any CSS-"overflow" like attribute for Curses windows. The Python/Curses docs are also rather cryptic on this aspect.

这里有人知道如何使用 Python 编写可滚动的 Curses 子窗口并实际滚动它吗?

Does anybody here have an idea how I can code a scrollable Curses subwindow using Python and actually scroll through it?

\edit: 更精确的问题

\edit: more precise question

推荐答案

OK with window.scroll 移动窗口的内容太复杂了.相反，curses.newpad 为我做了.

OK with window.scroll it was too complicated to move the content of the window. Instead, curses.newpad did it for me.

创建一个垫子:

mypad = curses.newpad(40,60)
mypad_pos = 0
mypad.refresh(mypad_pos, 0, 5, 5, 10, 60)

然后您可以根据 cmd 中 window.getch() 的输入通过增加/减少 mypad_pos 来滚动:

Then you can scroll by increasing/decreasing mypad_pos depending on the input from window.getch() in cmd:

if  cmd == curses.KEY_DOWN:
    mypad_pos += 1
    mypad.refresh(mypad_pos, 0, 5, 5, 10, 60)
elif cmd == curses.KEY_UP:
    mypad_pos -= 1
    mypad.refresh(mypad_pos, 0, 5, 5, 10, 60)

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