cursedspace 1.2.2

Library for TUI programs on basis of curses

cursedspace

A python library/framework for TUI application on the basis of the curses package.

Example use

Here’s a very simple example of how to use the cursedspace package:

#!/usr/bin/env python3

from cursedspace import Application, Key, Panel, colors


class DemoApplication(Application):
    def __init__(self):
        super().__init__()
        self.panel = None

    def main(self):
        self.panel = Panel(self)
        self.resize()

        self.screen.addstr(0, 0, "Just some color example", colors.attr(colors.RED))

        while True:
            curses.doupdate()

            key = self.read_key()

            if key == Key.RESIZE:
                self.resize()
            elif key in [Key.ESCAPE, "q", "^C"]:
                break

    def resize(self):
        height, width = self.size()
        self.panel.resize(height, width)
        self.panel.paint()


# run the application
DemoApplication().run()

Components

• Application is the main application class and provides boilerplate initialisations
• Panel is a basic panel with support for borders and key handling in the context of an Application
• InputLine is a panel with very basic editing support.
• Key provides a convenient wrapper around curses’ key system. It can be used standalone even when you don’t want to use Application or Panel.
• ShellContext is a convenient wrapper to execute external processes (e.g. through subprocess) and returning to the curses context afterwards again.
• colors is a generic way to define colors in pairs (foreground and background) and have them automatically registerd for use in curses. You only have to call colors.attr(ColorPair(...)) to use a new color combination (limited by the terminal, of course).