Clip-paths now work!

1 files changed, 17 insertions, 2 deletions

diff --git a/imagemap.py b/imagemap.py
index 3595323..9eb4132 100644
--- a/imagemap.py
+++ b/imagemap.py
@@ -62,8 +62,7 @@ class ImageMap(inkex.OutputExtension):
 		hscale=self.svg.viewport_height/viewBox[3] if viewBox[3]!=0 else 1
 		
 		# preprocess shapes for our purposes.
-		# after this, the shapes within the image must: look the same as before (barring colour/alpha), not be clones, have no stroke, not intersect, be visually unaffected by `fill-rule`, and not go out of bounds.
-		# TODO pay attention to clip-path
+		# after this, the shapes within the image must: look the same as before (barring colour/alpha), not be clones, have no stroke, not intersect, be visually unaffected by `fill-rule`, not be clipped, and not go out of bounds.
 		links=[]
 		rects=[]
 		svgIDs=[i.get_id() for i in self.svg.iterdescendants('{http://www.w3.org/2000/svg}svg')]
@@ -92,13 +91,29 @@ class ImageMap(inkex.OutputExtension):
 			self.svg.append(rect)
 			rects+=[newid]
 		
+		#clip-paths
+		clipped=[]
+		clippedpaths=set()
+		for clippedEl in self.svg.iterdescendants():
+			if not isinstance(clippedEl,inkex.BaseElement): continue
+			if clippedEl.cascaded_style().get('clip-path','none')=='none': continue
+			clipped.append([clippedEl.get_id(),0])
+			for el in clippedEl.descendants():
+				if not isinstance(el,inkex.ShapeElement) or isinstance(el,inkex.elements._groups.GroupBase):
+					clipped[-1][1]+=1 # can overshoot number of groups but works
+					continue
+				clippedpaths.add((el.get_id(),el.cascaded_style().get(CSS_LINK_INDEX)))
+		
 		if len(links)==0:
 			raise inkex.AbortExtension(_("Image has no hyperlinks.\nAdd a hyperlink to an object with right-click → \"{}\".").format(_i("Create Anchor (Hyperlink)")))
 		command=\
 			''.join(f'select-clear;select-by-id:{i};selection-ungroup;' for i in reversed(svgIDs)) \
+			+''.join(f'select-clear;select-by-id:{i[0]};{"selection-ungroup;"*i[1]}' for i in reversed(clipped) if i[1]>0) \
+			+''.join(f'select-clear;select-by-id:{i[0]};object-release-clip;unselect-by-id:{i[0]};selection-set-backup;select-clear;select-by-id:{i[0]};object-stroke-to-path;selection-ungroup;path-union;object-set-attribute:id,{i[0]};selection-restore-backup;select-by-id:{i[0]};path-intersection;object-set-attribute:style,{CSS_LINK_INDEX}:{i[1]};' for i in clippedpaths) \
 			+''.join(f'select-clear;select-by-selector:[style~="{CSS_LINK_INDEX}-{i}"];object-stroke-to-path;selection-ungroup;path-union;select-by-id:{rects[i]};path-intersection;object-set-attribute:style,{CSS_LINK_INDEX}:" {CSS_LINK_INDEX}-{i} ";' for i in range(len(links))) \
 			+'select-all;path-flatten;path-split'
 			# (we re-set the existing style attribute in case it got unset on non-paths)
+		from lxml import etree
 		newbytes=inkscape_command(self.svg,actions=command)
 		self.svg=self.load(newbytes).getroot()
 		# preprocessing done, now for map generation