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
  53     def get_base_elements(self):
  54         layerArr = self.document.xpath(
  55                    '//*[@id="webslicer-layer" and @inkscape:groupmode="layer"]',
  56                    namespaces=inkex.NSS)
  57         if len(layerArr) > 0:
  58             self.layer = layerArr[0]
  59         else:
  60             inkex.errormsg(_('You must to create and select some "Slicer rectangles" before try to group.'))
  61             exit(3)
  62         self.layer_descendants = self.get_descendants_in_array(self.layer)
  63
  64
  65     def get_descendants_in_array(self, el):
  66         descendants = el.getchildren()
  67         for e in descendants:
  68             descendants.extend( self.get_descendants_in_array(e) )
  69         return descendants
  70
  71
  72     def effect(self):
  73         self.get_base_elements()
  74         if len(self.selected) == 0:
  75             inkex.errormsg(_('You must to select some "Slicer rectangles" or other "Layout groups".'))
  76             exit(1)
  77         for id,node in self.selected.iteritems():
  78             if node not in self.layer_descendants:
  79                 inkex.errormsg(_('Opss... The element "%s" is not in the Web Slicer layer') % id)
  80                 exit(2)
  81         g_parent = self.getParentNode(node)
  82         group = inkex.etree.SubElement(g_parent, 'g')
  83         desc = inkex.etree.SubElement(group, 'desc')
  84         conf_txt = ''
  85         if not is_empty(self.options.html_id):
  86             conf_txt += 'html-id:'    + self.options.html_id +'\n'
  87         if not is_empty(self.options.html_class):
  88             conf_txt += 'html-class:' + self.options.html_class +'\n'
  89         conf_txt += 'width-unity:' + self.options.width_unity +'\n'
  90         conf_txt += 'height-unity:' + self.options.height_unity
  91         desc.text = conf_txt
  92         for id,node in self.selected.iteritems():
  93             group.insert( 1, node )
  94
  95
  96 if __name__ == '__main__':
  97     e = WebSlicer_CreateGroup()
  98     e.affect()