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left justify OTD display and update font display to test 5x7regular

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Chuck
2025-07-22 21:38:43 -05:00
parent 584976fc49
commit eb96285a5c
3 changed files with 25 additions and 51 deletions
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52
src/font_test_manager.py
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@@ -1,7 +1,6 @@
import os
import time
import freetype
from PIL import Image, ImageDraw
from PIL import Image, ImageDraw, ImageFont
import logging
from typing import Dict, Any
from src.display_manager import DisplayManager
@@ -11,12 +10,12 @@ logging.basicConfig(level=logging.INFO)
logger = logging.getLogger(__name__)
class FontTestManager:
"""Manager for testing tom-thumb font."""
"""Manager for testing 5x7 regular TTF font."""
def __init__(self, config: Dict[str, Any], display_manager: DisplayManager):
self.display_manager = display_manager
self.config = config
self.font_path = "assets/fonts/tom-thumb.bdf"
self.font_path = "assets/fonts/5by7.regular.ttf"
self.logger = logging.getLogger('FontTest')
# Verify font exists
@@ -24,10 +23,15 @@ 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)
# Load the TTF font with PIL
try:
self.font = ImageFont.truetype(self.font_path, 7) # Size 7 for 5x7 font
self.logger.info(f"Successfully loaded 5x7 regular TTF font from {self.font_path}")
except Exception as e:
self.logger.error(f"Failed to load 5x7 TTF font: {e}")
raise
self.logger.info("Initialized FontTestManager with tom-thumb font")
self.logger.info("Initialized FontTestManager with 5x7 regular TTF font")
def update(self):
"""No update needed for static display."""
@@ -44,42 +48,18 @@ class FontTestManager:
height = self.display_manager.matrix.height
# Draw font name at the top
self.display_manager.draw_text("tom-thumb", y=2, color=(255, 255, 255))
self.display_manager.draw_text("5x7 Regular", y=2, color=(255, 255, 255))
# Draw sample text
# Draw sample text using TTF font
draw = ImageDraw.Draw(self.display_manager.image)
sample_text = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
# Calculate starting position
x = 10 # Start 10 pixels from the left
y = (height - self.face.size.height) // 2 # Center vertically using font's natural height
y = 10 # Start 10 pixels from the top
# Draw each character
for char in sample_text:
# Load the glyph
self.face.load_char(char)
bitmap = self.face.glyph.bitmap
# Log bitmap details for debugging
self.logger.debug(f"Bitmap for '{char}': width={bitmap.width}, rows={bitmap.rows}, pitch={bitmap.pitch}")
# Draw the glyph
for i in range(bitmap.rows):
for j in range(bitmap.width):
try:
# Get the byte containing the pixel
byte_index = i * bitmap.pitch + (j // 8)
if byte_index < len(bitmap.buffer):
byte = bitmap.buffer[byte_index]
# Check if the specific bit is set
if byte & (1 << (7 - (j % 8))):
draw.point((x + j, y + i), fill=(255, 255, 255))
except IndexError:
self.logger.warning(f"Index out of range for char '{char}' at position ({i}, {j})")
continue
# Move to next character position
x += self.face.glyph.advance.x >> 6
# Draw the sample text using PIL's text drawing
draw.text((x, y), sample_text, font=self.font, fill=(255, 255, 255))
# Update the display once
self.display_manager.update_display()