modules refactoring + slight changes to folder structure

inkycal/config/layout.py

@@ -0,0 +1,102 @@
+#!/usr/bin/python3
+# -*- coding: utf-8 -*-
+"""
+Layout module for Inky-Calendar software.
+Copyright by aceisace
+"""
+
+import logging
+
+class layout:
+  """Page layout handling"""
+
+  logger = logging.getLogger(__name__)
+  logging.basicConfig(level=logging.DEBUG)
+
+  def __init__(self, model=None, width=None, height=None,
+               supports_colour=False):
+    """Initialize parameters for specified epaper model
+    Use model parameter to specify display OR
+    Crate a custom display with given width and height"""
+
+    self.background_colour = 'white'
+    self.text_colour = 'black'
+
+    if (model != None) and (width == None) and (height == None):
+      display_dimensions = {
+      'epd_7_in_5_v2_colour': (800, 400),
+      'epd_7_in_5_v2': (800, 400),
+      'epd_7_in_5_colour': (640, 384),
+      'epd_7_in_5': (640, 384),
+      'epd_5_in_83_colour': (600, 448),
+      'epd_5_in_83': (600, 448),
+      'epd_4_in_2_colour': (400, 300),
+      'epd_4_in_2': (400, 300),
+      }
+
+      self.display_height, self.display_width = display_dimensions[model]
+      if 'colour' in model:
+        self.three_colour_support = True
+
+    elif width and height:
+      self.display_height = width
+      self.display_width = height
+      self.supports_colour = supports_colour
+
+    else:
+      print("Can't create a layout without given sizes")
+      raise
+
+    self.top_section_width = self.display_width
+    self.middle_section_width = self.display_width
+    self.bottom_section_width = self.display_width
+    self.create_sections()
+
+  def create_sections(self, top_section=0.10, middle_section=0.65,
+                      bottom_section=0.25):
+    """Allocate fixed percentage height for top and middle section
+    e.g. 0.2 = 20% (Leave empty for default values)
+    Set top/bottom_section to 0 to allocate more space for the middle section
+    """
+    scale = lambda percentage: round(percentage * self.display_height)
+
+    if top_section == 0 or bottom_section == 0:
+      if top_section == 0:
+        self.top_section_height = 0
+
+      if bottom_section == 0:
+        self.bottom_section_height = 0
+
+      self.middle_section_height = scale(1 - top_section - bottom_section)
+    else:
+      if top_section + middle_section + bottom_section > 1.0:
+        print('All percentages should add up to max 100%, not more!')
+        raise
+
+      self.top_section_height = scale(top_section)
+      self.middle_section_height = scale(middle_section)
+      self.bottom_section_height = (self.display_height -
+        self.top_section_height - self.middle_section_height)
+
+    logging.debug('top-section size: {} x {} px'.format(
+      self.top_section_width, self.top_section_height))
+    logging.debug('middle-section size: {} x {} px'.format(
+      self.middle_section_width, self.middle_section_height))
+    logging.debug('bottom-section size: {} x {} px'.format(
+      self.bottom_section_width, self.bottom_section_height))
+
+
+  def get_section_size(self, section):
+    """Enter top/middle/bottom to get the size of the section as a tuple:
+    (width, height)"""
+
+    if section not in ['top','middle','bottom']:
+      raise Exception('Invalid section: ', section)
+    else:
+      if section == 'top':
+        size = (self.top_section_width, self.top_section_height)
+      elif section == 'middle':
+        size = (self.middle_section_width, self.middle_section_height)
+      elif section == 'bottom':
+        size = (self.bottom_section_width, self.bottom_section_height)
+      return size