Added DisplayOrientation option. If set to "inverted" display is inverted. (#23)

* Update config.yaml.default

* Update config.yaml.default

* Update eco_indicator.py

* Further explain config option

* Handle missing DisplayOrientation and fix whitespace

---------

Co-authored-by: James Herbert <james@artyzan.net>

Author: sidewinder42

config.yaml.default

@@ -13,6 +13,10 @@ AgileCap: 101
 DisplayType: inkyphat
 # supported display types are "blinkt" or "inkyphat".
 
+DisplayOrientation: standard
+# supported orientations are "standard" or "inverted". Only relevant for Inky pHat.
+# "Standard" means with the Inky pHat connector at the top and ribbon on the right.
+
 DNORegion: B
 # Permitted regions are:
 # A = East England

eco_indicator.py

@@ -435,6 +435,10 @@ def update_inky(conf: dict, inky_data: dict, demo: bool):
             draw.line((x_pos, average_line_ypos, x_pos + 2, average_line_ypos),
                       inky_display.BLACK)
 
+    # Flip orientation if option is set
+    if conf['DisplayOrientation'] == 'inverted':
+        img=img.rotate(180)
+
     inky_display.set_image(img)
     inky_display.show()
 
@@ -529,6 +533,16 @@ def get_config(filename: str) -> dict:
     elif _config['DisplayType'] == 'inkyphat':
         print('Inky pHAT display selected.')
 
+        if _config['DisplayOrientation'] is None:
+            _config['DisplayOrientation'] = 'standard'
+            print('Standard display orientation.')
+        elif _config['DisplayOrientation'] == 'standard':
+            print('Standard display orientation.')
+        elif _config['DisplayOrientation'] == 'inverted':
+            print('Inverted display orientation.')
+        else:
+            raise SystemExit('Error: Unknown display orientation found in ' + filename + ': ' + _config['DisplayOrientation'])
+
         conf_highprice = deep_get(_config, ['InkyPHAT', 'HighPrice'])
         if not (isinstance(conf_highprice, (int, float)) and 0 <= conf_highprice <= 35):
             print('Misconfigured high price value: ' + str(conf_highprice) +