DM: add framebuf methods

Adafruit_EPD/epd.py

@@ -74,4 +74,51 @@ class Adafruit_EPD(object):
 		self._dc.value = True
 		self.spi_device.write(d)
 		self._cs.value = True
-		self.spi_device.unlock()
+		self.spi_device.unlock()
+
+	#framebuf methods
+	def fill(self, color):
+		self.format.fill_rect(self, 0, 0, self.width, self.height, color)
+
+	def fill_rect(self, x, y, width, height, color):
+		if width < 1 or height < 1 or (x+width) <= 0 or (y+height) <= 0 or y >= self.height or x >= self.width:
+			return
+		xend = min(self.width, x+width)
+		yend = min(self.height, y+height)
+		x = max(x, 0)
+		y = max(y, 0)
+		for _x in range(xend - x):
+			for _y in range(yend - y):
+				self.draw_pixel(x + _x, y + _y, color)
+
+	def pixel(self, x, y, color=None):
+		if x < 0 or x >= self.width or y < 0 or y >= self.height:
+			return
+		if color is None:
+			return self.get_pixel(self, x, y)
+		else:
+			self.draw_pixel(self, x, y, color)
+
+	def hline(self, x, y, width, color):
+		self.fill_rect(x, y, width, 1, color)
+
+	def vline(self, x, y, height, color):
+		self.fill_rect(x, y, 1, height, color)
+
+	def rect(self, x, y, width, height, color):
+		self.fill_rect(x, y, width, 1, color)
+		self.fill_rect(x, y+height, width, 1, color)
+		self.fill_rect(self, x, y, 1, height, color)
+		self.fill_rect(self, x+width, y, 1, height, color)
+
+	def line(self):
+		raise NotImplementedError()
+
+	def blit(self):
+		raise NotImplementedError()
+
+	def scroll(self):
+		raise NotImplementedError()
+
+	def text(self):
+		raise NotImplementedError()

Adafruit_EPD/il0373.py

@@ -149,6 +149,19 @@ class Adafruit_IL0373(Adafruit_EPD):
 
         self.sram.write8(addr, c)
 
+    def get_pixel(self, x, y, color):
+        if (x < 0) or (x >= self.width) or (y < 0) or (y >= self.height):
+            return
+        
+        if x == 0:
+            x = 1
+        
+        addr = int(((self.width - x) * self.height + y)/8)
+        if color == Adafruit_EPD.RED:
+            addr = addr + self.bw_bufsize
+        c = self.sram.read8(addr)
+        return c
+
     def clear_buffer(self):
         self.sram.erase(0x00, self.bw_bufsize, 0xFF)
         self.sram.erase(self.bw_bufsize, self.red_bufsize, 0xFF)

examples/basic_154.py

@@ -19,17 +19,9 @@ display = Adafruit_IL0373(152, 152, rst, dc, busy, srcs, ecs, spi)
 #clear the buffer
 display.clear_buffer()
 
-#draw some lines!!
-for i in range(152):
-    display.draw_pixel(i, i, Adafruit_EPD.RED)
-    display.draw_pixel(152-i, i, Adafruit_EPD.RED)
-    display.draw_pixel(10, i, Adafruit_EPD.BLACK)
-    display.draw_pixel(20, i, Adafruit_EPD.BLACK)
-    display.draw_pixel(30, i, Adafruit_EPD.BLACK)
-    display.draw_pixel(40, i, Adafruit_EPD.BLACK)
-    display.draw_pixel(50, i, Adafruit_EPD.BLACK)
-    display.draw_pixel(60, i, Adafruit_EPD.BLACK)
-    display.draw_pixel(70, i, Adafruit_EPD.BLACK)
-    display.draw_pixel(80, i, Adafruit_EPD.BLACK)
+#draw some arbitrary lines and shapes!!
+display.fill_rect(30, 20, 50, 60, Adafruit_EPD.RED)
+display.hline(120, 30, 60, Adafruit_EPD.BLACK)
+display.vline(120, 30, 60, Adafruit_EPD.BLACK)
 
 display.display()