rick/LEDMatrix
1
0
Fork 0
mirror of https://github.com/ChuckBuilds/LEDMatrix.git synced 2026-04-11 21:33:00 +00:00
Code Issues Packages Projects Releases Wiki Activity

back to bdf font for clear drawing

Browse Source
This commit is contained in:
Chuck
2025-07-23 11:32:11 -05:00
parent 7eee58d5c1
commit 60a7159a4d
1 changed files with 43 additions and 14 deletions
Download Patch File Download Diff File Expand all files Collapse all files

57
src/of_the_day_manager.py
View File

@@ -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 using PIL # 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.truetype(os.path.join(font_dir, '5by7.regular.ttf'), 12) self.title_font = freetype.Face(os.path.join(font_dir, '5x7.bdf'))
self.body_font = ImageFont.truetype(os.path.join(font_dir, 'dot_digital-7.ttf'), 10) self.body_font = freetype.Face(os.path.join(font_dir, '5x7.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')
@@ -176,21 +193,25 @@ class OfTheDayManager:
body_font = self.body_font body_font = self.body_font
# Get font heights # Get font heights
title_height = title_font.getbbox('A')[3] # Bottom coordinate gives height title_height = title_font.height
body_height = body_font.getbbox('A')[3] # Bottom coordinate gives height body_height = body_font.height
# --- Draw Title (always at top, 5by7.regular.ttf) --- # --- Draw Title (always at top, 5x7.bdf) ---
title_y = 0 # Start at top title_y = 0 # Start at top
draw.text((1, title_y), title, font=title_font, fill=self.title_color) self._draw_bdf_text(draw, title_font, title, 1, title_y, color=self.title_color)
# Calculate title width for underline # Calculate title width for underline
title_width = title_font.getbbox(title)[2] # Right coordinate gives width title_width = 0
for c in title:
title_font.load_char(c)
title_width += title_font.glyph.advance.x
title_width = title_width // 64
# Underline below title # Underline below title
underline_y = title_height + 1 # Just below the title underline_y = title_height + 1 # Just below the title
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)
# --- Draw Subtitle or Description (rotating, dot_digital-7.ttf) --- # --- Draw Subtitle or Description (rotating, 5x7.bdf) ---
# Start subtitle/description below the title with proper spacing # Start subtitle/description below the title with proper spacing
y_start = title_height + 3 # Leave space between title and subtitle y_start = title_height + 3 # Leave space between title and subtitle
available_height = matrix_height - y_start available_height = matrix_height - y_start
@@ -201,20 +222,20 @@ class OfTheDayManager:
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_font, max_lines=3, line_height=body_height, max_height=available_height)
for i, line in enumerate(wrapped): for i, line in enumerate(wrapped):
if line.strip(): # Only draw non-empty lines if line.strip(): # Only draw non-empty lines
draw.text((1, y_start + i * body_height), line, font=body_font, fill=self.subtitle_color) self._draw_bdf_text(draw, body_font, 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_font, max_lines=3, line_height=body_height, max_height=available_height)
for i, line in enumerate(wrapped): for i, line in enumerate(wrapped):
if line.strip(): # Only draw non-empty lines if line.strip(): # Only draw non-empty lines
draw.text((1, y_start + i * body_height), line, font=body_font, fill=self.subtitle_color) self._draw_bdf_text(draw, body_font, 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 = []
@@ -222,7 +243,11 @@ 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 = font.getbbox(test_line)[2] # Right coordinate gives width text_width = 0
for c in test_line:
face.load_char(c)
text_width += face.glyph.advance.x
text_width = text_width // 64
if text_width <= max_width: if text_width <= max_width:
current_line.append(word) current_line.append(word)
else: else:
@@ -232,7 +257,11 @@ class OfTheDayManager:
else: else:
truncated = word truncated = word
while len(truncated) > 0: while len(truncated) > 0:
test_width = font.getbbox(truncated + "...")[2] # Right coordinate gives width test_width = 0
for c in (truncated + "..."):
face.load_char(c)
test_width += face.glyph.advance.x
test_width = test_width // 64
if test_width <= max_width: if test_width <= max_width:
lines.append(truncated + "...") lines.append(truncated + "...")
break break