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# test subclassing framebuf.FrameBuffer
try:
import framebuf
except ImportError:
print('SKIP')
raise SystemExit
class FB(framebuf.FrameBuffer):
def __init__(self, n):
self.n = n
super().__init__(bytearray(2 * n * n), n, n, framebuf.RGB565)
def foo(self):
self.hline(0, 2, self.n, 0x0304)
fb = FB(n=3)
fb.pixel(0, 0, 0x0102)
fb.foo()
print(bytes(fb))
# Test that blitting a subclass works.
fb2 = framebuf.FrameBuffer(bytearray(2 * 3 * 3), 3, 3, framebuf.RGB565)
fb.fill(0)
fb.pixel(0, 0, 0x0506)
fb.pixel(2, 2, 0x0708)
fb2.blit(fb, 0, 0)
print(bytes(fb2))
# Test that blitting something that isn't a subclass fails with TypeError.
class NotAFrameBuf:
pass
try:
fb.blit(NotAFrameBuf(), 0, 0)
except TypeError:
print('TypeError')
try:
fb.blit(None, 0, 0)
except TypeError:
print('TypeError')
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