openpilot/system/ui/lib/text_measure.py
Vehicle Researcher c5d5c5d1f3 openpilot v0.10.1 release
date: 2025-10-24T00:30:59
master commit: 405631baf9685e171a0dd19547cb763f1b163d18
2025-10-24 00:31:03 -07:00

35 lines
1.1 KiB
Python

import pyray as rl
from openpilot.system.ui.lib.application import FONT_SCALE, font_fallback
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."""
font = font_fallback(font)
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