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drivers/display/ssd1306: Make SSD1306 class inherit from FrameBuffer.

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Peter Hinch 2017-12-12 08:13:48 +00:00 committed by Damien George
parent 54cd6e3e4b
commit 479392a56e
1 changed files with 4 additions and 17 deletions
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21
drivers/display/ssd1306.py
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@ -23,29 +23,16 @@ SET_PRECHARGE = const(0xd9)
SET_VCOM_DESEL = const(0xdb)
SET_CHARGE_PUMP = const(0x8d)
class SSD1306:
# Subclassing FrameBuffer provides support for graphics primitives
# http://docs.micropython.org/en/latest/pyboard/library/framebuf.html
class SSD1306(framebuf.FrameBuffer):
def __init__(self, width, height, external_vcc):
self.width = width
self.height = height
self.external_vcc = external_vcc
self.pages = self.height // 8
self.buffer = bytearray(self.pages * self.width)
fb = framebuf.FrameBuffer(self.buffer, self.width, self.height, framebuf.MONO_VLSB)
self.framebuf = fb
# Provide methods for accessing FrameBuffer graphics primitives. This is a
# workround because inheritance from a native class is currently unsupported.
# http://docs.micropython.org/en/latest/pyboard/library/framebuf.html
self.fill = fb.fill
self.pixel = fb.pixel
self.hline = fb.hline
self.vline = fb.vline
self.line = fb.line
self.rect = fb.rect
self.fill_rect = fb.fill_rect
self.text = fb.text
self.scroll = fb.scroll
self.blit = fb.blit
super.__init__(self.buffer, self.width, self.height, framebuf.MONO_VLSB)
self.init_display()
def init_display(self):