如何在Pygame中启用中文输入？

Question

我想做的是：在PyGame中使用 Pinyin输入方法 中文字符。

我想出的唯一方法是：阅读单个键盘输入，然后使用一些图书馆，例如pinyin2hanzi将字母字符串转换为可能的汉字列表，就像Rockstar的方式一样在RDR2中处理中国的输入。下面提供了此当前解决方案的一个示例：

问题是，问题是，这与一个人的惯例输入方式完全不同中文。通常，当我们使用拼音输入方法输入中文时，可用选项由输入方法本身列出，如下：

因此，另一种描述我问题的方式可能是：我如何启用Pygame中的Pinyin输入方法并阅读中文我决定输入构成拼音的英语字符的组合而不是输入？

Answer 1

这种IME的东西不是我的茶杯，但我已经做了一些研究，我得到了您。

这是Pygame示例“ TextInput.py”的修改版本，其补丁使候选窗口打开。我已经在Github上将补丁提交给Pygame。您还应该使用最新的Pygame副本，您可以动手取得最佳效果。我不认为2.1.2会为此工作。运行PIP安装PyGame -Upgrade -Pre。 - Pre为您提供最新的预发行版本。

#!/usr/bin/env python
""" pg.examples.textinput

A little "console" where you can write in text.

Shows how to use the TEXTEDITING and TEXTINPUT events.
"""
import sys
import os

import pygame
import pygame as pg
import pygame.freetype as freetype

""" This is very important
    If not added the candidate list will not show """
os.environ["SDL_IME_SHOW_UI"] = "1"

class TextInput:
    """
    A simple TextInput class that allows you to receive inputs in pygame.
    """

    # Add font name for each language,
    # otherwise some text can't be correctly displayed.
    FONT_NAMES = [
        "notosanscjktcregular",
        "notosansmonocjktcregular",
        "notosansregular,",
        "microsoftjhengheimicrosoftjhengheiuilight",
        "microsoftyaheimicrosoftyaheiuilight",
        "msgothicmsuigothicmspgothic",
        "msmincho",
        "Arial",
    ]

    def __init__(
        self, prompt: str, pos, screen_dimensions, print_event: bool, text_color="white"
    ) -> None:
        self.prompt = prompt
        self.print_event = print_event
        # position of chatlist and chatbox
        self.CHAT_LIST_POS = pg.Rect((pos[0], pos[1] + 50), (screen_dimensions[0], 400))
        self.CHAT_BOX_POS = pg.Rect(pos, (screen_dimensions[1], 40))
        self.CHAT_LIST_MAXSIZE = 20

        self._ime_editing = False
        self._ime_text = ""
        self._ime_text_pos = 0
        self._ime_editing_text = ""
        self._ime_editing_pos = 0
        self.chat_list = []

        # Freetype
        # The font name can be a comma separated list
        # of font names to search for.
        self.FONT_NAMES = ",".join(str(x) for x in self.FONT_NAMES)
        self.font = freetype.SysFont(self.FONT_NAMES, 24)
        self.font_small = freetype.SysFont(self.FONT_NAMES, 16)
        self.text_color = text_color

        print("Using font: " + self.font.name)

    def update(self, events) -> None:
        """
        Updates the text input widget
        """
        for event in events:
            if event.type == pg.KEYDOWN:
                if self.print_event:
                    print(event)

                if self._ime_editing:
                    if len(self._ime_editing_text) == 0:
                        self._ime_editing = False
                    continue

                if event.key == pg.K_BACKSPACE:
                    if len(self._ime_text) > 0 and self._ime_text_pos > 0:
                        self._ime_text = (
                            self._ime_text[0 : self._ime_text_pos - 1]
                            + self._ime_text[self._ime_text_pos :]
                        )
                        self._ime_text_pos = max(0, self._ime_text_pos - 1)

                elif event.key == pg.K_DELETE:
                    self._ime_text = (
                        self._ime_text[0 : self._ime_text_pos]
                        + self._ime_text[self._ime_text_pos + 1 :]
                    )
                elif event.key == pg.K_LEFT:
                    self._ime_text_pos = max(0, self._ime_text_pos - 1)
                elif event.key == pg.K_RIGHT:
                    self._ime_text_pos = min(
                        len(self._ime_text), self._ime_text_pos + 1
                    )
                # Handle ENTER key
                elif event.key in [pg.K_RETURN, pg.K_KP_ENTER]:
                    # Block if we have no text to append
                    if len(self._ime_text) == 0:
                        continue

                    # Append chat list
                    self.chat_list.append(self._ime_text)
                    if len(self.chat_list) > self.CHAT_LIST_MAXSIZE:
                        self.chat_list.pop(0)
                    self._ime_text = ""
                    self._ime_text_pos = 0

            elif event.type == pg.TEXTEDITING:
                if self.print_event:
                    print(event)
                self._ime_editing = True
                self._ime_editing_text = event.text
                self._ime_editing_pos = event.start

            elif event.type == pg.TEXTINPUT:
                if self.print_event:
                    print(event)
                self._ime_editing = False
                self._ime_editing_text = ""
                self._ime_text = (
                    self._ime_text[0 : self._ime_text_pos]
                    + event.text
                    + self._ime_text[self._ime_text_pos :]
                )
                self._ime_text_pos += len(event.text)

    def draw(self, screen: pygame.Surface) -> None:
        """
        Draws the text input widget onto the provided surface
        """

        # Chat List updates
        chat_height = self.CHAT_LIST_POS.height / self.CHAT_LIST_MAXSIZE
        for i, chat in enumerate(self.chat_list):
            self.font_small.render_to(
                screen,
                (self.CHAT_LIST_POS.x, self.CHAT_LIST_POS.y + i * chat_height),
                chat,
                self.text_color,
            )

        # Chat box updates
        start_pos = self.CHAT_BOX_POS.copy()
        ime_text_l = self.prompt + self._ime_text[0 : self._ime_text_pos]
        ime_text_m = (
            self._ime_editing_text[0 : self._ime_editing_pos]
            + "|"
            + self._ime_editing_text[self._ime_editing_pos :]
        )
        ime_text_r = self._ime_text[self._ime_text_pos :]

        rect_text_l = self.font.render_to(
            screen, start_pos, ime_text_l, self.text_color
        )
        start_pos.x += rect_text_l.width

        # Editing texts should be underlined
        rect_text_m = self.font.render_to(
            screen,
            start_pos,
            ime_text_m,
            self.text_color,
            None,
            freetype.STYLE_UNDERLINE,
        )
        start_pos.x += rect_text_m.width
        self.font.render_to(screen, start_pos, ime_text_r, self.text_color)


class Game:
    """
    A class that handles the game's events, mainloop etc.
    """

    # CONSTANTS
    # Frames per second, the general speed of the program
    FPS = 50
    # Size of window
    SCREEN_WIDTH, SCREEN_HEIGHT = 640, 480
    BG_COLOR = "black"

    def __init__(self, caption: str) -> None:
        # Initialize
        pg.init()
        self.screen = pg.display.set_mode((self.SCREEN_WIDTH, self.SCREEN_HEIGHT))
        pg.display.set_caption(caption)
        self.clock = pg.time.Clock()

        # Text input
        # Set to true or add 'showevent' in argv to see IME and KEYDOWN events
        self.print_event = "showevent" in sys.argv
        self.text_input = TextInput(
            prompt="> ",
            pos=(0, 20),
            screen_dimensions=(self.SCREEN_WIDTH, self.SCREEN_HEIGHT),
            print_event=self.print_event,
            text_color="green",
        )

    def main_loop(self) -> None:
        pg.key.start_text_input()
        input_rect = pg.Rect(80, 80, 320, 40)
        pg.key.set_text_input_rect(input_rect)

        while True:
            events = pg.event.get()
            for event in events:
                if event.type == pg.QUIT:
                    pg.quit()
                    return

            self.text_input.update(events)

            # Screen updates
            self.screen.fill(self.BG_COLOR)
            self.text_input.draw(self.screen)

            pg.display.update()
            self.clock.tick(self.FPS)


# Main loop process
def main():
    game = Game("Text Input Example")
    game.main_loop()


if __name__ == "__main__":
    main()

抱歉，它已经漫长了，但是希望这对您有所帮助。