Update inkycal_rss.py

Inky-Calendar/modules/inkycal_rss.py

@@ -1,49 +1,85 @@
-"""Add rss-feeds at the bottom section of the Calendar"""
+#!/usr/bin/python3
+# -*- coding: utf-8 -*-
+"""
+RSS module for Inky-Calendar software.
+Copyright by aceisace
+"""
+from __future__ import print_function
 import feedparser
 from random import shuffle
 from settings import *
 from configuration import *
 
-"""Find out how many lines can fit at max in the bottom section"""
-lines = bottom_section_height // line_height
-"""Create and fill a dictionary of the positions of each line"""
-line_pos = {}
-for i in range(lines):
-  y = bottom_section_offset + i * line_height
-  line_pos['pos' + str(i+1)]  = (x_padding, y)
+fontsize = 14
+
+"""Add a border to increase readability"""
+border_top = int(bottom_section_height * 0.05)
+border_left = int(bottom_section_width * 0.02)
+
+"""Choose font optimised for the weather section"""
+font = ImageFont.truetype(NotoSans+'Light.ttf', fontsize)
+space_between_lines = 1
+line_height = font.getsize('hg')[1] + space_between_lines
+line_width = bottom_section_width - (border_left*2)
+
+"""Find out how many lines can fit at max in the bottom section"""
+max_lines = (bottom_section_height - (border_top*2)) // (font.getsize('hg')[1]
+  + space_between_lines)
+
+"""Calculate the height padding so the lines look centralised"""
+y_padding = int( (bottom_section_height % line_height) / 2 )
+
+"""Create a list containing positions of each line"""
+line_positions = [(border_left, bottom_section_offset +
+  border_top + y_padding + _*line_height ) for _ in range(max_lines)]
+
+def main():
+  if bottom_section == "RSS" and rss_feeds != [] and internet_available() == True:
+    try:
+      print('RSS module: Connectivity check passed. Generating image...',
+            end = '')
 
-if bottom_section == "RSS" and rss_feeds != []:
       """Parse the RSS-feed titles & summaries and save them to a list"""
-  rss_feed = []
+      parsed_feeds = []
       for feeds in rss_feeds:
           text = feedparser.parse(feeds)
           for posts in text.entries:
-          rss_feed.append('{0}: {1}'.format(posts.title, posts.summary))
-  del rss_feed[lines:]
-  shuffle(rss_feed)
+              parsed_feeds.append('•{0}: {1}'.format(posts.title, posts.summary))
+
+      """Shuffle the list, then crop it to the max number of lines"""
+      shuffle(parsed_feeds)
+      del parsed_feeds[max_lines:]
 
 
-"""Check the lenght of each feed. Wrap the text if it doesn't fit on one line"""
+      """Check the lenght of each feed. Wrap the text if it doesn't fit on one line"""
       flatten = lambda z: [x for y in z for x in y]
-  filtered, counter = [], 0
+      filtered_feeds, counter = [], 0
 
-  for posts in rss_feed:
-    wrapped = text_wrap(posts)
-    counter += len(filtered) + len(wrapped)
-    if counter < lines:
-      filtered.append(wrapped)
-  filtered = flatten(filtered)
+      for posts in parsed_feeds:
+        wrapped = text_wrap(posts, font = font, line_width = line_width)
+        counter += len(filtered_feeds) + len(wrapped)
+        if counter < max_lines:
+          filtered_feeds.append(wrapped)
+      filtered_feeds = flatten(filtered_feeds)
 
+      """Write the correctly formatted text on the display"""
+      for _ in range(len(filtered_feeds)):
+        write_text(line_width, line_height, filtered_feeds[_],
+          line_positions[_], font = font, alignment= 'left')
 
-##  for i in lines: # Show line lenght and content of each line
-##    print(i, ' ' * (line-len(i)),'| height: ',default.getsize(i)[1])
+      del filtered_feeds, parsed_feeds
 
-"""Write the correctly formatted text on the display"""
-  for i in range(len(filtered)):
-    write_text(display_width, default.getsize('hg')[1],
-               ' '+filtered[i], line_pos['pos'+str(i+1)], alignment= 'left')
+      rss_image = image.crop((0,bottom_section_offset, display_width,
+        display_height))
+      rss_image.save(image_path+'rss.png')
+      print('Done')
 
-  image.crop((0,bottom_section_offset, display_width, display_height)).save(
-    'rss.png')
+    except Exception as e:
+      """If something went wrong, print a Error message on the Terminal"""
+      print('Failed!')
+      print('Error in RSS module!')
+      print('Reason: ',e)
+      pass
 
-  del filtered, rss_feed
+if __name__ == '__main__':
+  main()