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feat: use freetype for proper BDF font support

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ChuckBuilds
2025-04-22 20:03:07 -05:00
parent 608dd87a6a
commit aceb1acefb
1 changed files with 23 additions and 14 deletions
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37
src/font_test_manager.py
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@@ -1,6 +1,7 @@
import os
import time
from PIL import Image, ImageDraw, ImageFont
import freetype
from PIL import Image, ImageDraw
import logging
from typing import Dict, Any
from src.display_manager import DisplayManager
@@ -24,6 +25,10 @@ class FontTestManager:
self.logger.error(f"Font file not found: {self.font_path}")
raise FileNotFoundError(f"Font file not found: {self.font_path}")
# Load the font
self.face = freetype.Face(self.font_path)
self.face.set_char_size(self.font_size * 64) # Size is in 1/64th of points
self.logger.info("Initialized FontTestManager with tom-thumb font")
def update(self):
@@ -40,9 +45,6 @@ class FontTestManager:
width = self.display_manager.matrix.width
height = self.display_manager.matrix.height
# Load the BDF font
font = ImageFont.truetype(self.font_path, self.font_size)
# Draw font name at the top
self.display_manager.draw_text("tom-thumb", y=2, color=(255, 255, 255))
@@ -50,17 +52,24 @@ class FontTestManager:
draw = ImageDraw.Draw(self.display_manager.image)
sample_text = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
# Get text dimensions
bbox = draw.textbbox((0, 0), sample_text, font=font)
text_width = bbox[2] - bbox[0]
text_height = bbox[3] - bbox[1]
# Calculate starting position
x = 10 # Start 10 pixels from the left
y = (height - self.font_size) // 2 # Center vertically
# Calculate position to center the text
x = (width - text_width) // 2
y = (height - text_height) // 2
# Draw the text
draw.text((x, y), sample_text, font=font, fill=(255, 255, 255))
# Draw each character
for char in sample_text:
# Load the glyph
self.face.load_char(char)
bitmap = self.face.glyph.bitmap
# Draw the glyph
for i in range(bitmap.rows):
for j in range(bitmap.width):
if bitmap.buffer[i * bitmap.width + j]:
draw.point((x + j, y + i), fill=(255, 255, 255))
# Move to next character position
x += self.face.glyph.advance.x >> 6
# Update the display once
self.display_manager.update_display()