def _rotate(self, buf):
"""
Rotates tiles in the buffer by the given orientation
"""
result = []
for i in range(0, self._cascaded * self.NUM_DIGITS, self.NUM_DIGITS):
tile = buf[i:i + self.NUM_DIGITS]
for _ in range(self._orientation // 90):
tile = rotate(tile)
result += tile
return result
def _rotate(self, buf):
"""
Rotates tiles in the buffer by the given orientation
"""
result = []
for i in range(0, self._cascaded * self.NUM_DIGITS, self.NUM_DIGITS):
tile = buf[i:i + self.NUM_DIGITS]
for _ in range(self._orientation // 90):
tile = rotate(tile)
result += tile
return result
def flush(self):
"""
For each digit/column, cascade out the contents of the buffer
cells to the SPI device.
"""
# Allow subclasses to pre-process the buffer: they shouldn't
# alter it, so make a copy first.
buf = self._preprocess_buffer(list(self._buffer))
assert len(buf) == len(self._buffer), "Preprocessed buffer is wrong size"
if self._vertical:
tmp_buf = []
for x in range(0, self._cascaded):
tmp_buf += rotate(buf[x*8:x*8+8])
buf = tmp_buf
for posn in range(self.NUM_DIGITS):
self._write(self._values(posn, buf))
def flush(self):
"""
For each digit/column, cascade out the contents of the buffer
cells to the SPI device.
"""
# Allow subclasses to pre-process the buffer: they shouldn't
# alter it, so make a copy first.
buf = self._preprocess_buffer(list(self._buffer))
assert len(buf) == len(self._buffer), "Preprocessed buffer is wrong size"
if self._vertical:
tmp_buf = []
for x in range(0, self._cascaded):
tmp_buf += rotate(buf[x*8:x*8+8])
buf = tmp_buf
for posn in range(self.NUM_DIGITS):
self._write(self._values(posn, buf))