arcade.gui.experimental.password_input 源代码

from __future__ import annotations

from typing import Optional

from arcade.gui import UIInputText, UIEvent, UITextEvent, Surface




class UIPasswordInput(UIInputText):
    """A password input field. The text is hidden with asterisks."""



    def on_event(self, event: UIEvent) -> Optional[bool]:
        if isinstance(event, UITextEvent):
            event.text = event.text.replace("\n", "")  # remove new lines!
            event.text = event.text.replace("\r", "")  # remove new lines!
        return super().on_event(event)




    def do_render(self, surface: Surface):
        self.layout.begin_update()
        position = self.caret.position
        text = self.text
        self.text = "*" * len(self.text)
        super().do_render(surface)
        self.text = text
        self.caret.position = position
        self.layout.end_update()