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more display changes

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tuning absolute positioning of pixels and draw space
This commit is contained in:
Chuck
2025-04-07 21:01:29 -05:00
parent b9641389d0
commit cafab55cb2
2 changed files with 15 additions and 9 deletions
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2
config/config.json
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@@ -25,7 +25,7 @@
"runtime": {
"gpio_slowdown": 2
},
"rotation_interval": 30
"rotation_interval": 15
},
"clock": {
"format": "%H:%M:%S",

20
src/display_manager.py
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@@ -23,8 +23,8 @@ class DisplayManager:
self.config = config
logger.info("Initializing DisplayManager with config: %s", config)
self._setup_matrix() # This now sets self.matrix
# Use an even smaller font size for better fitting
self.font = ImageFont.truetype("DejaVuSans.ttf", 12)
# Use appropriate font size for 32px height
self.font = ImageFont.truetype("DejaVuSans.ttf", 14)
self.image = Image.new('RGB', (self.matrix.width, self.matrix.height))
self.draw = ImageDraw.Draw(self.image)
DisplayManager._initialized = True
@@ -88,8 +88,8 @@ class DisplayManager:
line_heights = []
line_widths = []
total_height = 0
max_width = 0
padding = 2 # Add padding between lines
edge_padding = 2 # Minimum padding from display edges
for line in lines:
bbox = self.draw.textbbox((0, 0), line, font=self.font)
@@ -105,22 +105,28 @@ class DisplayManager:
# Calculate starting Y position to center all lines vertically
if y is None:
y = (self.matrix.height - total_height) // 2
y = max(edge_padding, (self.matrix.height - total_height) // 2)
# Draw each line
current_y = y
for i, line in enumerate(lines):
if x is None:
# Center this line horizontally
# Center this line horizontally across full width (128 pixels)
line_x = (self.matrix.width - line_widths[i]) // 2
else:
line_x = x
# Ensure x coordinate stays within bounds
line_x = max(edge_padding, min(line_x, self.matrix.width - line_widths[i] - edge_padding))
# Ensure y coordinate stays within bounds
current_y = max(edge_padding, min(current_y, self.matrix.height - line_heights[i] - edge_padding))
logger.info(f"Drawing line '{line}' at position ({line_x}, {current_y})")
self.draw.text((line_x, current_y), line, font=self.font, fill=color)
current_y += line_heights[i] + padding
self.matrix.SetImage(self.image)
# Calculate next line position
current_y += line_heights[i] + padding
def cleanup(self):
"""Clean up resources."""