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scroll tuning

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scroll tuning
This commit is contained in:
Chuck
2025-04-10 20:49:32 -05:00
parent 80ac45cd73
commit f3fd77c4c3
2 changed files with 11 additions and 15 deletions
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2
config/config.json
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@@ -55,7 +55,7 @@
"enabled": true, "enabled": true,
"update_interval": 300, "update_interval": 300,
"scroll_speed": 1, "scroll_speed": 1,
"scroll_delay": 0.0005, "scroll_delay": 0.001,
"max_headlines_per_symbol": 1 "max_headlines_per_symbol": 1
} }
} }

24
src/news_manager.py
View File

@@ -154,9 +154,12 @@ class NewsManager:
# Get the current news item to display # Get the current news item to display
current_news = all_news[self.current_news_index] current_news = all_news[self.current_news_index]
next_news = all_news[(self.current_news_index + 1) % len(all_news)]
# Format the news text # Format the news text with spacing between items
news_text = f"{current_news['symbol']}: {current_news['title']}" current_text = f"{current_news['symbol']}: {current_news['title']}"
next_text = f"{next_news['symbol']}: {next_news['title']}"
news_text = f"{current_text} {next_text}"
# Create a text image for efficient scrolling # Create a text image for efficient scrolling
text_image = self._create_text_image(news_text) text_image = self._create_text_image(news_text)
@@ -165,17 +168,11 @@ class NewsManager:
# Calculate the visible portion of the text # Calculate the visible portion of the text
visible_width = min(self.display_manager.matrix.width, text_width) visible_width = min(self.display_manager.matrix.width, text_width)
# If this is the first time displaying this news item, clear the screen
if self.scroll_position == 0:
self.display_manager.clear()
self.display_manager.update_display()
# Create a new image for the current frame # Create a new image for the current frame
frame_image = Image.new('RGB', (self.display_manager.matrix.width, self.display_manager.matrix.height), (0, 0, 0)) frame_image = Image.new('RGB', (self.display_manager.matrix.width, self.display_manager.matrix.height), (0, 0, 0))
# Calculate the source and destination regions for the visible portion # Calculate the source and destination regions for the visible portion
# For left-to-right scrolling, we start from the left side of the text src_x = self.scroll_position % text_width # Use modulo to wrap around smoothly
src_x = self.scroll_position
src_width = min(visible_width, text_width - src_x) src_width = min(visible_width, text_width - src_x)
# Copy the visible portion of the text to the frame # Copy the visible portion of the text to the frame
@@ -199,13 +196,12 @@ class NewsManager:
# Update scroll position # Update scroll position
self.scroll_position += self.scroll_speed self.scroll_position += self.scroll_speed
# If we've scrolled past the end of the text, move to the next news item # If we've scrolled past the current text, move to the next news item
if self.scroll_position > text_width + self.display_manager.matrix.width: if self.scroll_position >= text_width:
self.scroll_position = 0 self.scroll_position = 0
self.current_news_index = (self.current_news_index + 1) % len(all_news) self.current_news_index = (self.current_news_index + 1) % len(all_news)
# Add a small delay to control scroll speed # Add a small delay to control scroll speed
time.sleep(self.scroll_delay) time.sleep(self.scroll_delay)
# Return True if we've displayed all news items return True
return self.current_news_index == 0 and self.scroll_position == 0