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handles.py

#!/usr/bin/env python 
'''
Copyright (C) 2005 Aaron Spike, aaron@ekips.org

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
'''
import inkex, simplepath, simplestyle

class Handles(inkex.Effect):
      def effect(self):
            for id, node in self.selected.iteritems():
                  if node.tagName == 'path':
                        p = simplepath.parsePath(node.attributes.getNamedItem('d').value)
                        a =[]
                        pen = None
                        subPathStart = None
                        for cmd,params in p:
                              if cmd == 'C':
                                    a.extend([['M', params[:2]], ['L', pen],
                                          ['M', params[2:4]], ['L', params[-2:]]])
                              if cmd == 'Q':
                                    a.extend([['M', params[:2]], ['L', pen],
                                          ['M', params[:2]], ['L', params[-2:]]])
                              
                              if cmd == 'M':
                                    subPathStart = params

                              if cmd == 'Z':
                                    pen = subPathStart
                              else:
                                    pen = params[-2:]
                              
                        if len(a) > 0:
                              new = self.document.createElement('svg:path')
                              s = {'stroke-linejoin': 'miter', 'stroke-width': '1.0px', 
                                    'stroke-opacity': '1.0', 'fill-opacity': '1.0', 
                                    'stroke': '#000000', 'stroke-linecap': 'butt', 
                                    'fill': 'none'}
                              new.setAttribute('style', simplestyle.formatStyle(s))
                              new.setAttribute('d', simplepath.formatPath(a))
                              node.parentNode.appendChild(new)

e = Handles()
e.affect()

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