add missing rectangle drawer, allow use of adafruit_framebuf

Author: ladyada

adafruit_ssd1306.py

@@ -32,7 +32,10 @@
 
 from micropython import const
 from adafruit_bus_device import i2c_device, spi_device
-import framebuf
+try:
+    import framebuf
+except ImportError:
+    import adafruit_framebuf as framebuf
 
 __version__ = "0.0.0-auto.0"
 __repo__ = "https://github.com/adafruit/Adafruit_CircuitPython_SSD1306.git"
@@ -63,7 +66,7 @@ class _SSD1306:
     """Base class for SSD1306 display driver"""
     #pylint: disable-msg=too-many-arguments
     #pylint: disable-msg=too-many-instance-attributes
-    def __init__(self, framebuffer, width, height, external_vcc, reset):
+    def __init__(self, framebuffer, width, height, *, external_vcc, reset):
         self.framebuf = framebuffer
         self.fill = self.framebuf.fill
         self.pixel = self.framebuf.pixel
@@ -74,6 +77,7 @@ def __init__(self, framebuffer, width, height, external_vcc, reset):
         self.vline = self.framebuf.vline
         self.hline = self.framebuf.hline
         self.fill_rect = self.framebuf.fill_rect
+        self.rect = self.framebuf.rect
         self.width = width
         self.height = height
         self.external_vcc = external_vcc
@@ -188,7 +192,8 @@ def __init__(self, width, height, i2c, *, addr=0x3c, external_vcc=False, reset=N
         self.buffer = bytearray(((height // 8) * width) + 1)
         self.buffer[0] = 0x40  # Set first byte of data buffer to Co=0, D/C=1
         framebuffer = framebuf.FrameBuffer1(memoryview(self.buffer)[1:], width, height)
-        super().__init__(framebuffer, width, height, external_vcc, reset)
+        super().__init__(framebuffer, width, height,
+                         external_vcc=external_vcc, reset=reset)
 
     def write_cmd(self, cmd):
         """Send a command to the SPI device"""
@@ -226,7 +231,8 @@ def __init__(self, width, height, spi, dc, reset, cs, *,
         self.dc_pin = dc
         self.buffer = bytearray((height // 8) * width)
         framebuffer = framebuf.FrameBuffer1(self.buffer, width, height)
-        super().__init__(framebuffer, width, height, external_vcc, reset)
+        super().__init__(framebuffer, width, height,
+                         external_vcc=external_vcc, reset=reset)
 
     def write_cmd(self, cmd):
         """Send a command to the SPI device"""