openpilot is an open source driver assistance system. openpilot performs the functions of Automated Lane Centering and Adaptive Cruise Control for over 200 supported car makes and models.
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import pyray as rl
from openpilot.system.ui.lib.application import FONT_SCALE
from openpilot.system.ui.lib.emoji import find_emoji
_cache: dict[int, rl.Vector2] = {}
def measure_text_cached(font: rl.Font, text: str, font_size: int, spacing: int = 0) -> rl.Vector2:
"""Caches text measurements to avoid redundant calculations."""
key = hash((font.texture.id, text, font_size, spacing))
if key in _cache:
return _cache[key]
# Measure normal characters without emojis, then add standard width for each found emoji
emoji = find_emoji(text)
if emoji:
non_emoji_text = ""
last_index = 0
for start, end, _ in emoji:
non_emoji_text += text[last_index:start]
last_index = end
else:
non_emoji_text = text
result = rl.measure_text_ex(font, non_emoji_text, font_size * FONT_SCALE, spacing) # noqa: TID251
if emoji:
result.x += len(emoji) * font_size * FONT_SCALE
# If just emoji assume a single line height
if result.y == 0:
result.y = font_size * FONT_SCALE
_cache[key] = result
return result