def get_svg_attributes(node, parent_attributes={}):
if parent_attributes:
attributes = dict(parent_attributes)
else:
attributes = dict()
transform = parse_transform(node)
if transform and not transform.equals(Transform()):
if attributes.has_key("transform"):
t = Transform(attributes["transform"])
t.append(transform)
attributes["transform"] = t
else:
attributes["transform"] = transform
color_attrs = parse_color_info(node)
attributes.update(color_attrs)
return attributes
def get_svg_attributes(node, parent_attributes={}):
if parent_attributes:
attributes = dict(parent_attributes)
else:
attributes = dict()
transform = parse_transform(node)
if transform and not transform.equals(Transform()):
if attributes.has_key("transform"):
t = Transform(attributes["transform"])
t.append(transform)
attributes["transform"] = t
else:
attributes["transform"] = transform
color_attrs = parse_color_info(node)
attributes.update(color_attrs)
return attributes
def parse_transform(e):
""" Attempts to extract a transform="matrix()|translate()|scale()|rotate()" attribute.
"""
from nodebox.graphics import Transform
def translate(s):
a = to_number_array(s)
tx = a[0]
ty = 0
if len(a) > 1:
ty = a[1]
return Transform.translated(tx, ty)
def scale(s):
a = to_number_array(s)
sx = a[0]
sy = sx
if len(a) > 1:
sy = a[1]
return Transform.scaled(sx, sy)
def rotate(s):
a = to_number_array(s)
r = a[0]
tx = 0
ty = 0
if len(a) > 1:
tx = a[1]
if len(a) > 2:
ty = a[2]
t = Transform()
t.translate(tx, ty)
t.rotate(r)
t.translate(-tx, -ty)
return t
def matrix(s):
m = to_number_array(s)
return Transform(*m)
types = {
"translate": translate,
"scale": scale,
"rotate": rotate,
"matrix": matrix
}
transforms = []
t = get_attribute(e, "transform", default="")
a = get_attribute(e, "id", None)
if t:
v = compress_spaces(t).lstrip().rstrip()
v = re.split("\s(?=[a-z])", v)
for el in v:
type = el.split("(")[0].lstrip().rstrip()
s = el.split("(")[1].replace(")", "")
transform = types[type](s)
transforms.append(transform)
transform = Transform()
if transforms:
for t in transforms:
transform.append(t)
return transform
def parse_transform(e):
""" Attempts to extract a transform="matrix()|translate()|scale()|rotate()" attribute.
"""
from nodebox.graphics import Transform
def translate(s):
a = to_number_array(s)
tx = a[0]
ty = 0
if len(a) > 1:
ty = a[1]
return Transform.translated(tx, ty)
def scale(s):
a = to_number_array(s)
sx = a[0]
sy = sx
if len(a) > 1:
sy = a[1]
return Transform.scaled(sx, sy)
def rotate(s):
a = to_number_array(s)
r = a[0]
tx = 0
ty = 0
if len(a) > 1:
tx = a[1]
if len(a) > 2:
ty = a[2]
t = Transform()
t.translate(tx, ty)
t.rotate(r)
t.translate(-tx, -ty)
return t
def matrix(s):
m = to_number_array(s)
return Transform(*m)
types = {
"translate": translate,
"scale": scale,
"rotate": rotate,
"matrix": matrix
}
transforms = []
t = get_attribute(e, "transform", default="")
a = get_attribute(e, "id", None)
if t:
v = compress_spaces(t).lstrip().rstrip()
v = re.split("\s(?=[a-z])", v)
for el in v:
type = el.split("(")[0].lstrip().rstrip()
s = el.split("(")[1].replace(")", "")
transform = types[type](s)
transforms.append(transform)
transform = Transform()
if transforms:
for t in transforms:
transform.append(t)
return transform