def getAABB(self):
aabb = AABB()
lastX = 0
lastY = 0
# to acces values with simplepath format
(x, y) = range(-2, 0)
if self.tag == addNS('path', 'svg'):
blocks = Factory().create('path_parser').parse(self.get('d'))
for vertex in blocks:
for (cmd, values) in vertex:
if values is not None:
if cmd == 'C':
aabb.addBezier((lastX, lastY), values)
elif cmd == 'A':
aabb.addArc((lastX, lastY), values)
else:
aabb.addPoint(values[x], values[y])
lastX = values[x]
lastY = values[y]
elif self.tag in [addNS('rect', 'svg'), addNS('image', 'svg')]:
x = float(self.get('x'))
y = float(self.get('y'))
width = float(self.get('width'))
height = float(self.get('height'))
aabb.addPoint(x, y)
aabb.addPoint(x + width, y + height)
elif self.tag == addNS('use', 'svg'):
x = float(self.get('x'))
y = float(self.get('y'))
# the first character of an href is a #
imageId = self.get(addNS('href', 'xlink'))[1:]
image = self.svg.getImage(imageId)
width = float(image.get('width'))
height = float(image.get('height'))
aabb.addPoint(x, y)
aabb.addPoint(x + width, y + height)
else:
raise Exception("Can't get AABB of a node which is neither a path \
nor a rect.\nnode tag:%s" % self.tag)
return aabb
