def bbox(self):
if len(self.stored_list) == 0:
return BBox(0, 0, 0, 0)
min_x1 = min([x.bbox[0] for x in self.stored_list])
min_y1 = min([x.bbox[1] for x in self.stored_list])
max_x2 = max([x.bbox[2] for x in self.stored_list])
max_y2 = max([x.bbox[3] for x in self.stored_list])
return BBox(min_x1, min_y1, max_x2, max_y2)
def as_stored_image(self):
"""
把自身转化为合并后的单个的StoredImage
12.31:从collapse...函数改造
:return: 合并完成的StoredImage
"""
if not isinstance(self, StoredGroup):
raise TypeError("Not a StoredGroup type being collapsing")
group_image = new_blank_pic_as_PIL(self.bbox.width, self.bbox.height)
for stored_image in self.stored_list[::-1]:
relative_bbox = BBox(stored_image.bbox.x1 - self.bbox.x1,
stored_image.bbox.y1 - self.bbox.y1,
stored_image.bbox.x2 - self.bbox.x1,
stored_image.bbox.y2 - self.bbox.y1)
# 计算图片在整个组中的相对边界。组的边界是由整个组内部所有成员的边界确定的
if isinstance(stored_image, StoredGroup):
op_image = stored_image.as_stored_image().final_image_as_PIL
else:
op_image = stored_image.final_image_as_PIL
temp_image = new_blank_pic_as_PIL(self.bbox.width,
self.bbox.height)
# 创建一张和整个组一样大的空图
temp_image.paste(op_image, (relative_bbox.x1, relative_bbox.y1))
# 虽然带透明度的两张图无法直接paste，但是贴到一张全透明的空图的中却可以
group_image = Image.alpha_composite(group_image, temp_image)
# 带透明度没法直接paste，必须alpha_composite
return StoredImage(None, group_image, copy.copy(self.info),
copy.copy(self.bbox))
def test_userapi_placed_layers():
img = PSDImage(decode_psd("placedLayer.psd"))
bg = img.layers[3]
assert bg.placed_layer_size is None
assert bg.transform_bbox is None
layer0 = img.layers[0]
assert layer0.placed_layer_size == (64, 64)
assert layer0.transform_bbox == BBox(x1=96.0, y1=96.0, x2=160.0, y2=160.0)
layer1 = img.layers[1]
assert layer1.placed_layer_size == (101, 55)
assert layer1.placed_layer_size.width == 101
assert layer1.transform_bbox == BBox(x1=27.0, y1=73.0, x2=229.0, y2=183.0)
layer2 = img.layers[2]
assert layer2.placed_layer_size == (64, 64)
assert layer2.transform_bbox == BBox(x1=96.0, y1=96.0, x2=160.0, y2=160.0)
def collapse_group_into_stored_image(stored_group):
"""
把一个自己的StoredGroup合并成一个StoredImage，就像Photoshop里的合并图层
还差的地方：如果bbox中信息和实际图像大小不符的话？
另外未考虑NORMAL以外的混合模式
未考虑各种蒙版，因为PSD实在有点复杂
12.29:边缘总是会多一个像素，考虑crop
12.30:边缘多一个像素被证明是图层内容本来就超出边界的原因
:param stored_group:
:return:一个合并完成的StoredImage
"""
if not isinstance(stored_group, StoredGroup):
raise TypeError("Not a StoredGroup type being collapsing")
group_image = new_blank_pic_as_PIL(stored_group.bbox.width,
stored_group.bbox.height)
for stored_image in stored_group.stored_list[::-1]:
relative_bbox = BBox(stored_image.bbox.x1 - stored_group.bbox.x1,
stored_image.bbox.y1 - stored_group.bbox.y1,
stored_image.bbox.x2 - stored_group.bbox.x1,
stored_image.bbox.y2 - stored_group.bbox.y1)
# 计算图片在整个组中的相对边界。组的边界是由整个组内部所有成员的边界确定的
if isinstance(stored_image, StoredGroup):
op_image = collapse_group_into_stored_image(
stored_image).final_image_as_PIL
else:
op_image = stored_image.final_image_as_PIL
temp_image = new_blank_pic_as_PIL(stored_group.bbox.width,
stored_group.bbox.height)
# 创建一张和整个组一样大的空图
temp_image.paste(op_image, (relative_bbox.x1, relative_bbox.y1))
# 虽然带透明度的两张图无法直接paste，但是贴到一张全透明的空图的中却可以
group_image = Image.alpha_composite(group_image, temp_image)
# 带透明度没法直接paste，必须alpha_composite
return StoredImage(None, group_image, copy.copy(stored_group.info),
copy.copy(stored_group.bbox))
('gradient fill.psd', (100, 150)),
('group.psd', (100, 200)),
('hidden-groups.psd', (100, 200)),
('hidden-layer.psd', (100, 150)),
('history.psd', (100, 150)),
('mask.psd', (100, 150)),
('note.psd', (300, 300)),
('pen-text.psd', (300, 300)),
('smart-object-slice.psd', (100, 100)),
('transparentbg.psd', (100, 150)),
('transparentbg-gimp.psd', (40, 40)),
('vector mask.psd', (100, 150)),
)
BBOXES = (
('1layer.psd', 0, BBox(0, 0, 101, 55)),
('2layers.psd', 0, BBox(8, 4, 93, 50)),
('2layers.psd', 1, BBox(0, 0, 101, 55)),
('group.psd', 0, BBox(25, 24, 66, 98))
)
RESOLUTIONS = (
('1layer.psd', ResolutionInfo(
h_res=72.0, h_res_unit=DisplayResolutionUnit.PIXELS_PER_INCH,
v_res=72.0, v_res_unit=DisplayResolutionUnit.PIXELS_PER_INCH,
width_unit=DimensionUnit.INCH, height_unit=DimensionUnit.INCH)),
('group.psd', ResolutionInfo(
h_res=72.0, h_res_unit=DisplayResolutionUnit.PIXELS_PER_INCH,
v_res=72.0, v_res_unit=DisplayResolutionUnit.PIXELS_PER_INCH,
width_unit=DimensionUnit.CM, height_unit=DimensionUnit.CM)),
)
('hidden-layer.psd', (100, 150)),
('history.psd', (100, 150)),
('mask.psd', (100, 150)),
('note.psd', (300, 300)),
('pen-text.psd', (300, 300)),
('smart-object-slice.psd', (100, 100)),
('transparentbg.psd', (100, 150)),
('transparentbg-gimp.psd', (40, 40)),
('vector mask.psd', (100, 150)),
('gray0.psd', (400, 359)),
('gray1.psd', (1800, 1200)),
('empty-layer.psd', (100, 150)),
)
BBOXES = (
('1layer.psd', 0, BBox(0, 0, 101, 55)),
('2layers.psd', 0, BBox(8, 4, 93, 50)),
('2layers.psd', 1, BBox(0, 0, 101, 55)),
('group.psd', 0, BBox(25, 24, 66, 98)),
('empty-layer.psd', 0, BBox(36, 57, 52, 73)),
('empty-layer.psd', 1, BBox(0, 0, 100, 150)),
)
RESOLUTIONS = (
('1layer.psd',
ResolutionInfo(h_res=72.0,
h_res_unit=DisplayResolutionUnit.PIXELS_PER_INCH,
v_res=72.0,
v_res_unit=DisplayResolutionUnit.PIXELS_PER_INCH,
width_unit=DimensionUnit.INCH,
height_unit=DimensionUnit.INCH)),
def bbox(self):
return BBox(0, 0, self.size[0], self.size[1])