def _set_showing_image_index(self, idx: Optional[int]) -> None:
if idx is None:
return
idx = clamp(idx, 0, self.bn_num_images.get() - 1)
self._showing_image_index = idx
self._update_showing_image()
def commit_define(self, end_pos: Vector2[float]) -> None:
assert self.is_defining
start_pos = self._begin_define_pos
self._begin_define_pos = None
region = Rect2(
pt0=start_pos,
pt1=end_pos,
).map(int)
clip = self._bn_clip.get()
if clip is not None:
region = Rect2(
x0=clamp(region.x0, clip.x0, clip.x1),
y0=clamp(region.y0, clip.y0, clip.y1),
x1=clamp(region.x1, clip.x0, clip.x1),
y1=clamp(region.y1, clip.y0, clip.y1),
)
if region.w == 0 or region.h == 0:
return
self.bn_region.set(region)
def test_clamp(x, lower, upper, expected):
if math.isnan(expected):
assert math.isnan(clamp(x, lower, upper))
else:
assert clamp(x, lower, upper) == expected