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bdf font debugging

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Chuck
2025-07-23 10:31:56 -05:00
parent 0d47875dec
commit 585dbe0d10
1 changed files with 38 additions and 16 deletions
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54
src/of_the_day_manager.py
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@@ -8,6 +8,7 @@ from rgbmatrix import graphics
import pytz import pytz
from src.config_manager import ConfigManager from src.config_manager import ConfigManager
import time import time
import freetype
# Configure logger for this module # Configure logger for this module
logger = logging.getLogger(__name__) logger = logging.getLogger(__name__)
@@ -36,10 +37,10 @@ class OfTheDayManager:
self.last_rotation_time = time.time() self.last_rotation_time = time.time()
self.last_category_rotation_time = time.time() self.last_category_rotation_time = time.time()
# Load fonts # Load fonts using freetype
font_dir = os.path.join(os.path.dirname(__file__), '..', 'assets', 'fonts') font_dir = os.path.join(os.path.dirname(__file__), '..', 'assets', 'fonts')
self.title_font = ImageFont.load_bdf(os.path.join(font_dir, 'ic8x8u.bdf')) self.title_face = freetype.Face(os.path.join(font_dir, 'ic8x8u.bdf'))
self.body_font = ImageFont.load_bdf(os.path.join(font_dir, 'cozette.bdf')) self.body_face = freetype.Face(os.path.join(font_dir, 'cozette.bdf'))
# Load categories and their data # Load categories and their data
self.categories = self.of_the_day_config.get('categories', {}) self.categories = self.of_the_day_config.get('categories', {})
@@ -164,6 +165,22 @@ class OfTheDayManager:
logger.debug("OfTheDayManager update interval reached") logger.debug("OfTheDayManager update interval reached")
self.last_update = current_time self.last_update = current_time
def _draw_bdf_text(self, draw, face, text, x, y, color=(255,255,255)):
"""Draw text using a BDF font loaded with freetype."""
orig_x = x
for char in text:
face.load_char(char)
bitmap = face.glyph.bitmap
for i in range(bitmap.rows):
for j in range(bitmap.width):
byte_index = i * bitmap.pitch + (j // 8)
if byte_index < len(bitmap.buffer):
byte = bitmap.buffer[byte_index]
if byte & (1 << (7 - (j % 8))):
draw.point((x + j, y + i), fill=color)
x += face.glyph.advance.x >> 6
return x - orig_x
def draw_item(self, category_name, item): def draw_item(self, category_name, item):
try: try:
title = item.get('title', 'No Title') title = item.get('title', 'No Title')
@@ -172,14 +189,18 @@ class OfTheDayManager:
draw = ImageDraw.Draw(self.display_manager.image) draw = ImageDraw.Draw(self.display_manager.image)
matrix_width = self.display_manager.matrix.width matrix_width = self.display_manager.matrix.width
matrix_height = self.display_manager.matrix.height matrix_height = self.display_manager.matrix.height
title_font = self.title_font title_face = self.title_face
body_font = self.body_font body_face = self.body_face
title_height = title_font.getsize('A')[1] # Get font heights
body_height = body_font.getsize('A')[1] title_face.set_char_size(8*64)
body_face.set_char_size(8*64)
title_height = title_face.size.height // 64
body_height = body_face.size.height // 64
# --- Draw Title (always at top, ic8x8u.bdf) --- # --- Draw Title (always at top, ic8x8u.bdf) ---
self.display_manager.draw_text(title, 1, 0, color=self.title_color, font=title_font) self._draw_bdf_text(draw, title_face, title, 1, 0, color=self.title_color)
title_width = self.display_manager.get_text_width(title, title_font) # Underline
title_width = sum([title_face.get_advance_width(ord(c)) for c in title]) // 64
underline_y = title_height # Just below the title font underline_y = title_height # Just below the title font
draw.line([(1, underline_y), (1 + title_width, underline_y)], fill=self.title_color, width=1) draw.line([(1, underline_y), (1 + title_width, underline_y)], fill=self.title_color, width=1)
@@ -189,21 +210,21 @@ class OfTheDayManager:
available_width = matrix_width - 2 available_width = matrix_width - 2
if self.rotation_state == 0 and subtitle: if self.rotation_state == 0 and subtitle:
# Show subtitle # Show subtitle
wrapped = self._wrap_text(subtitle, available_width, body_font, max_lines=3, line_height=body_height, max_height=available_height) wrapped = self._wrap_text(subtitle, available_width, body_face, max_lines=3, line_height=body_height, max_height=available_height)
for i, line in enumerate(wrapped): for i, line in enumerate(wrapped):
self.display_manager.draw_text(line, 1, y_start + i * body_height, color=self.subtitle_color, font=body_font) self._draw_bdf_text(draw, body_face, line, 1, y_start + i * body_height, color=self.subtitle_color)
elif self.rotation_state == 1 and description: elif self.rotation_state == 1 and description:
# Show description # Show description
wrapped = self._wrap_text(description, available_width, body_font, max_lines=3, line_height=body_height, max_height=available_height) wrapped = self._wrap_text(description, available_width, body_face, max_lines=3, line_height=body_height, max_height=available_height)
for i, line in enumerate(wrapped): for i, line in enumerate(wrapped):
self.display_manager.draw_text(line, 1, y_start + i * body_height, color=self.subtitle_color, font=body_font) self._draw_bdf_text(draw, body_face, line, 1, y_start + i * body_height, color=self.subtitle_color)
# else: nothing to show # else: nothing to show
return True return True
except Exception as e: except Exception as e:
logger.error(f"Error drawing 'of the day' item: {e}", exc_info=True) logger.error(f"Error drawing 'of the day' item: {e}", exc_info=True)
return False return False
def _wrap_text(self, text, max_width, font, max_lines=3, line_height=8, max_height=24): def _wrap_text(self, text, max_width, face, max_lines=3, line_height=8, max_height=24):
if not text: if not text:
return [""] return [""]
lines = [] lines = []
@@ -211,7 +232,7 @@ class OfTheDayManager:
words = text.split() words = text.split()
for word in words: for word in words:
test_line = ' '.join(current_line + [word]) if current_line else word test_line = ' '.join(current_line + [word]) if current_line else word
text_width = self.display_manager.get_text_width(test_line, font) text_width = sum([face.get_advance_width(ord(c)) for c in test_line]) // 64
if text_width <= max_width: if text_width <= max_width:
current_line.append(word) current_line.append(word)
else: else:
@@ -221,7 +242,8 @@ class OfTheDayManager:
else: else:
truncated = word truncated = word
while len(truncated) > 0: while len(truncated) > 0:
if self.display_manager.get_text_width(truncated + "...", font) <= max_width: test_width = sum([face.get_advance_width(ord(c)) for c in (truncated + "...")]) // 64
if test_width <= max_width:
lines.append(truncated + "...") lines.append(truncated + "...")
break break
truncated = truncated[:-1] truncated = truncated[:-1]