def __create_thumbnail(self, draw_rect: Geometry.IntRect) -> DrawingContext.DrawingContext:
drawing_context = DrawingContext.DrawingContext()
if self.__display_item:
thumbnail_data = self.calculate_thumbnail_data()
if thumbnail_data is not None:
draw_rect = Geometry.fit_to_size(draw_rect, thumbnail_data.shape)
drawing_context.draw_image(thumbnail_data, draw_rect[0][1], draw_rect[0][0], draw_rect[1][1], draw_rect[1][0])
return drawing_context
def layout(self,
canvas_origin,
canvas_size,
canvas_items,
*,
immediate=False):
r = Geometry.IntRect(origin=canvas_origin, size=canvas_size)
if canvas_size.width > canvas_size.height:
r = Geometry.fit_to_size(
r, Geometry.IntSize(w=canvas_size.height,
h=canvas_size.height))
super().layout(canvas_origin,
r.size,
canvas_items,
immediate=immediate)
else:
r = Geometry.fit_to_size(
r, Geometry.IntSize(w=canvas_size.width, h=canvas_size.width))
super().layout(canvas_origin,
r.size,
canvas_items,
immediate=immediate)
def layout(self,
canvas_origin: Geometry.IntPoint,
canvas_size: Geometry.IntSize,
canvas_items: typing.Sequence[CanvasItem.AbstractCanvasItem],
*,
immediate: bool = False) -> None:
r = Geometry.IntRect(origin=canvas_origin, size=canvas_size)
if canvas_size.width > canvas_size.height:
r = Geometry.fit_to_size(
r, Geometry.IntSize(w=canvas_size.height,
h=canvas_size.height)).to_int_rect()
super().layout(canvas_origin,
r.size,
canvas_items,
immediate=immediate)
else:
r = Geometry.fit_to_size(
r, Geometry.IntSize(w=canvas_size.width,
h=canvas_size.width)).to_int_rect()
super().layout(canvas_origin,
r.size,
canvas_items,
immediate=immediate)
def __create_thumbnail(
self,
draw_rect: Geometry.IntRect) -> DrawingContext.DrawingContext:
drawing_context = DrawingContext.DrawingContext()
if self.__display_item:
thumbnail_data = self.calculate_thumbnail_data()
if thumbnail_data is not None:
draw_rect_f = Geometry.fit_to_size(
draw_rect,
typing.cast(typing.Tuple[int, int], thumbnail_data.shape))
drawing_context.draw_image(thumbnail_data, draw_rect_f.left,
draw_rect_f.top, draw_rect_f.width,
draw_rect_f.height)
return drawing_context
def test_fit_to_size(self):
eps = 0.0001
rects = []
sizes = []
rects.append(((0, 0), (300, 700)))
sizes.append((600, 1200))
rects.append(((0, 0), (300, 700)))
sizes.append((1200, 600))
rects.append(((0, 0), (600, 800)))
sizes.append((700, 1300))
rects.append(((0, 0), (600, 800)))
sizes.append((1300, 700))
for rect, size in zip(rects, sizes):
fit = Geometry.fit_to_size(rect, size)
self.assertTrue(
abs(
float(fit[1][1]) / float(fit[1][0]) -
float(size[1]) / float(size[0])) < eps)
