share/extensions/webslicer-create-group.py

   1 #!/usr/bin/env python
   2 '''
   3 Copyright (C) 2010 Aurelio A. Heckert, aurium (a) gmail dot com
   4
   5 This program is free software; you can redistribute it and/or modify
   6 it under the terms of the GNU General Public License as published by
   7 the Free Software Foundation; either version 2 of the License, or
   8 (at your option) any later version.
   9
  10 This program is distributed in the hope that it will be useful,
  11 but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License
  16 along with this program; if not, write to the Free Software
  17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  18 '''
  19
  20 import inkex
  21 import gettext
  22
  23 _ = gettext.gettext
  24
  25 def is_empty(val):
  26     if val is None:
  27         return True
  28     else:
  29         return len(str(val)) == 0
  30
  31 class WebSlicer_CreateGroup(inkex.Effect):
  32
  33     def __init__(self):
  34         inkex.Effect.__init__(self)
  35         self.OptionParser.add_option("--html-id",
  36                                      action="store", type="string",
  37                                      dest="html_id",
  38                                      help="")
  39         self.OptionParser.add_option("--html-class",
  40                                      action="store", type="string",
  41                                      dest="html_class",
  42                                      help="")
  43         self.OptionParser.add_option("--width-unity",
  44                                      action="store", type="string",
  45                                      dest="width_unity",
  46                                      help="")
  47         self.OptionParser.add_option("--height-unity",
  48                                      action="store", type="string",
  49                                      dest="height_unity",
  50                                      help="")
  51
  52     def effect(self):
  53         layer = self.document.xpath(
  54                      '//*[@id="webslicer-layer" and @inkscape:groupmode="layer"]',
  55                      namespaces=inkex.NSS)[0]
  56         if len(self.selected) == 0:
  57             inkex.errormsg(_('You must to select some "Slicer rectangles" or other "Layout groups".'))
  58             exit(1)
  59         descendants = get_descendants_in_array(layer)
  60         for id,node in self.selected.iteritems():
  61             if node not in descendants:
  62                 inkex.errormsg(_('Opss... The element "%s" is not in the Web Slicer layer') % id)
  63                 exit(2)
  64         g_parent = self.find_node_parent(node)
  65         group = inkex.etree.SubElement(g_parent, 'g')
  66         desc = inkex.etree.SubElement(group, 'desc')
  67         conf_txt = ''
  68         if not is_empty(self.options.html_id):
  69             conf_txt += 'html-id:'    + self.options.html_id +'\n'
  70         if not is_empty(self.options.html_class):
  71             conf_txt += 'html-class:' + self.options.html_class +'\n'
  72         conf_txt += 'width-unity:' + self.options.width_unity +'\n'
  73         conf_txt += 'height-unity:' + self.options.height_unity
  74         desc.text = conf_txt
  75         for id,node in self.selected.iteritems():
  76             group.insert( 1, node )
  77
  78
  79     def find_node_parent(self, node):
  80         #TODO: make it real!
  81         return self.document.xpath(
  82                     '//*[@id="webslicer-layer" and @inkscape:groupmode="layer"]',
  83                     namespaces=inkex.NSS)[0]
  84
  85 def get_descendants_in_array(el):
  86     descendants = el.getchildren()
  87     for e in descendants:
  88         descendants.extend( get_descendants_in_array(e) )
  89     return descendants
  90
  91 if __name__ == '__main__':
  92     e = WebSlicer_CreateGroup()
  93     e.affect()