FabLab_Chemnitz/mightyscape-1.1-deprecated
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mightyscape-1.1-deprecated
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Added basic support for svg:use element

This commit is contained in:
leyghisbb 2021-04-12 13:37:55 +02:00
parent b9f7cc314c
commit 0da493ace9
1 changed files with 52 additions and 4 deletions
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56
extensions/fablabchemnitz/applytransform.py
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@ -4,8 +4,10 @@
# Copyright Mark "Klowner" Riedesel
# https://github.com/Klowner/inkscape-applytransforms
#
import inkex
import copy
import math
from lxml import etree
import inkex
from inkex.paths import CubicSuperPath, Path
from inkex.transforms import Transform
from inkex.styles import Style
@ -57,7 +59,7 @@ class ApplyTransform(inkex.EffectExtension):
def recursiveFuseTransform(self, node, transf=[[1.0, 0.0, 0.0], [0.0, 1.0, 0.0]]):
transf = Transform(transf) * Transform(node.get("transform", None))
transf = Transform(transf) * Transform(node.get("transform", None)) #a, b, c, d = linear transformations / e, f = translations
if 'transform' in node.attrib:
del node.attrib['transform']
@ -139,10 +141,56 @@ class ApplyTransform(inkex.EffectExtension):
else:
node.set("r", edgex / 2)
elif node.tag == inkex.addNS("use", "svg"):
href = None
old_href_key = '{http://www.w3.org/1999/xlink}href'
new_href_key = 'href'
if node.attrib.has_key(old_href_key) is True: # {http://www.w3.org/1999/xlink}href (which gets displayed as 'xlink:href') attribute is deprecated. the newer attribute is just 'href'
href = node.attrib.get(old_href_key)
#node.attrib.pop(old_href_key)
if node.attrib.has_key(new_href_key) is True:
href = node.attrib.get(new_href_key) #we might overwrite the previous deprecated xlink:href but it's okay
#node.attrib.pop(new_href_key)
#get the linked object from href attribute
linkedObject = self.document.getroot().xpath("//*[@id = '%s']" % href.lstrip('#')) #we must remove hashtag symbol
linkedObjectCopy = copy.copy(linkedObject[0])
objectType = linkedObject[0].tag
if objectType == inkex.addNS("image", "svg"):
mask = None #image might have an alpha channel
new_mask_id = self.svg.get_unique_id("mask")
newMask = None
if node.attrib.has_key('mask') is True:
mask = node.attrib.get('mask')
#node.attrib.pop('mask')
#get the linked mask from mask attribute. We remove the old and create a new
if mask is not None:
linkedMask = self.document.getroot().xpath("//*[@id = '%s']" % mask.lstrip('url(#').rstrip(')')) #we must remove hashtag symbol
linkedMask[0].getparent().remove(linkedMask[0])
maskAttributes = {'id': new_mask_id}
newMask = etree.SubElement(self.document.getroot(), inkex.addNS('mask', 'svg'), maskAttributes)
width = float(linkedObjectCopy.get('width')) * transf.a
height = float(linkedObjectCopy.get('height')) * transf.d
linkedObjectCopy.set('width', '{:1.6f}'.format(width))
linkedObjectCopy.set('height', '{:1.6f}'.format(height))
linkedObjectCopy.set('x', '{:1.6f}'.format(transf.e))
linkedObjectCopy.set('y', '{:1.6f}'.format(transf.f))
if newMask is not None:
linkedObjectCopy.set('mask', 'url(#' + new_mask_id + ')')
maskRectAttributes = {'x': '{:1.6f}'.format(transf.e), 'y': '{:1.6f}'.format(transf.f), 'width': '{:1.6f}'.format(width), 'height': '{:1.6f}'.format(height), 'style':'fill:#ffffff;'}
maskRect = etree.SubElement(newMask, inkex.addNS('rect', 'svg'), maskRectAttributes)
else:
self.recursiveFuseTransform(linkedObjectCopy, transf)
self.document.getroot().append(linkedObjectCopy) #for each svg:use we append a copy to the document root
node.getparent().remove(node) #then we remove the use object
elif node.tag in [inkex.addNS('rect', 'svg'),
inkex.addNS('text', 'svg'),
inkex.addNS('image', 'svg'),
inkex.addNS('use', 'svg')]:
inkex.addNS('image', 'svg')]:
inkex.utils.errormsg(
"Shape %s (%s) not yet supported, try Object to path first"
% (node.TAG, node.get("id"))