7 changed files with 111 additions and 25 deletions
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from typing import Optional |
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import typing |
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import pygame |
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def draw_cursor(surface, cur_position, high, c, size=4): |
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pygame.draw.line(surface, c, |
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cur_position, |
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(cur_position[0], cur_position[1] + high), size) |
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def get_word_length(ft, word: str): |
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word_surface = ft.render(word, 0, pygame.Color('black')) |
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return word_surface.get_size() |
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def render_text(surface, position: typing.Tuple[int, int], font: pygame.font, text: str, c=pygame.Color('black'), |
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cursor_position: Optional[int] = None): |
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"""Render text with hyphenation""" |
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if len(text) == 0: |
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return None |
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need_cursor = cursor_position is not None |
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lines = [word.split() for word in text.splitlines()] |
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space_size = font.size(' ')[0] |
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max_width, max_height = surface.get_size() |
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x, y = position |
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symbols_counter = 0 |
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for line in lines: |
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for word in line: |
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w, h = get_word_length(font, word) |
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if w > max_width or h > max_height: |
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raise ValueError("Surface is too small") |
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if x + w >= max_width: |
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x = position[0] |
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y += h |
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surface.blit(font.render(word, 0, c), (x, y)) |
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if need_cursor and symbols_counter + len(word) >= cursor_position: |
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# It means that cursor is in this word or after this word |
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cur_coord = (x + get_word_length(font, |
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word[:cursor_position - symbols_counter])[0], y) |
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draw_cursor(surface, cur_coord, h, c) |
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need_cursor = False |
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symbols_counter += len(word) + 1 |
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x += w + space_size |
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y += h |
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x = position[0] |
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Before Width: | Height: | Size: 7.9 KiB After Width: | Height: | Size: 8.0 KiB |
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