width/height change with rotation

Author: ladyada

adafruit_epd/epd.py

@@ -44,8 +44,8 @@ class Adafruit_EPD:
     # pylint: disable=too-many-arguments
     def __init__(self, width, height, spi, cs_pin, dc_pin, sramcs_pin, rst_pin, busy_pin):
         # pylint: enable=too-many-arguments
-        self.width = width
-        self.height = height
+        self._width = width
+        self._height = height
 
         # Setup reset pin, if we have one
         self._rst = rst_pin
@@ -145,6 +145,18 @@ def text(self, string, x, y, color, *, font_name="font5x8.bin"):
         self._bw_framebuf.text(string, x, y, (color == Adafruit_EPD.BLACK) != self.black_invert, font_name=font_name)
         self._red_framebuf.text(string, x, y, (color == Adafruit_EPD.RED) != self.red_invert, font_name=font_name)
 
+    @property
+    def width(self):
+        if self.rotation in (0, 2):
+            return self._width
+        return self._height
+
+    @property
+    def height(self):
+        if self.rotation in (0, 2):
+            return self._height
+        return self._width
+
     @property
     def rotation(self):
         return self._bw_framebuf._rotation

adafruit_epd/il0373.py

@@ -109,10 +109,10 @@ def power_up(self):
         self.command(_IL0373_PANEL_SETTING, bytearray([0xCF]))
         self.command(_IL0373_CDI, bytearray([0x37]))
         self.command(_IL0373_PLL, bytearray([0x29]))
-        _b1 = self.width & 0xFF
-        _b2 = (self.width >> 8) & 0xFF
-        _b3 = self.height & 0xFF
-        _b4 = (self.height >> 8) & 0xFF
+        _b1 = self._width & 0xFF
+        _b2 = (self._width >> 8) & 0xFF
+        _b3 = self._height & 0xFF
+        _b4 = (self._height >> 8) & 0xFF
         self.command(_IL0373_RESOLUTION, bytearray([_b1, _b2, _b3, _b4]))
         self.command(_IL0373_VCM_DC_SETTING, bytearray([0x0A]))
 
@@ -210,7 +210,7 @@ def image(self, image):
                     x = 1
                 pixel = pix[x, y]
 
-                addr = int(((self.width - x) * self.height + y)/8)
+                addr = int(((self._width - x) * self._height + y)/8)
 
                 if pixel == (0xFF, 0, 0):
                     addr = addr + self.bw_bufsize
@@ -226,11 +226,11 @@ def image(self, image):
     def pixel(self, x, y, color):
         """draw a single pixel in the display buffer"""
         if self.sram:
-            if (x < 0) or (x >= self.width) or (y < 0) or (y >= self.height):
+            if (x < 0) or (x >= self._width) or (y < 0) or (y >= self._height):
                 return
             if x == 0:
                 x = 1
-            addr = ((self.width - x) * self.height + y) // 8
+            addr = ((self._width - x) * self._height + y) // 8
             if color == Adafruit_EPD.RED:
                 current = self.sram.read8(addr + self.bw_bufsize)
             else: