ibus/gtk.py

   1 # vim:set noet ts=4:
   2 #
   3 # ibus - The Input Bus
   4 #
   5 # Copyright (c) 2007-2008 Huang Peng <shawn.p.huang@gmail.com>
   6 #
   7 # This library is free software; you can redistribute it and/or
   8 # modify it under the terms of the GNU Lesser General Public
   9 # License as published by the Free Software Foundation; either
  10 # version 2 of the License, or (at your option) any later version.
  11 #
  12 # This library is distributed in the hope that it will be useful,
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 # GNU Lesser General Public License for more details.
  16 #
  17 # You should have received a copy of the GNU Lesser General Public
  18 # License along with this program; if not, write to the
  19 # Free Software Foundation, Inc., 59 Temple Place, Suite 330,
  20 # Boston, MA  02111-1307  USA
  21
  22 import pango
  23 import ibus
  24
  25 class PangoAttrList (pango.AttrList):
  26         def __init__ (self, attrs, unistr):
  27                 pango.AttrList.__init__ (self)
  28                 if attrs == None:
  29                         return
  30                 offsets = []
  31                 offset = 0
  32                 for c in unistr:
  33                         offsets.append (offset)
  34                         offset += len (c.encode ("utf8"))
  35                 offsets.append (offset)
  36                 for attr in attrs:
  37                         pango_attr = None
  38                         start_index = attr._start_index if attr._start_index >= 0 else 0
  39                         end_index = attr._end_index if attr._end_index >= 0 else 0
  40                         start_index = offsets[start_index] if start_index < len (offsets) else offsets[-1]
  41                         end_index = offsets[end_index] if end_index < len (offsets) else offsets[-1]
  42                         if attr._type == ibus.ATTR_TYPE_FOREGROUND:
  43                                 r = (attr._value & 0x00ff0000) >> 8
  44                                 g = (attr._value & 0x0000ff00)
  45                                 b = (attr._value & 0x000000ff) << 8
  46                                 pango_attr = pango.AttrForeground (r, g, b,
  47                                         start_index, end_index)
  48                         elif attr._type == ibus.ATTR_TYPE_BACKGROUND:
  49                                 r = (attr._value & 0x00ff0000) >> 8
  50                                 g = (attr._value & 0x0000ff00)
  51                                 b = (attr._value & 0x000000ff) << 8
  52                                 pango_attr = pango.AttrBackground (r, g, b,
  53                                         start_index, end_index)
  54                         elif attr._type == ibus.ATTR_TYPE_UNDERLINE:
  55                                 pango_attr = pango.AttrUnderline (int (attr._value),
  56                                         start_index, end_index)
  57                         if pango_attr != None:
  58                                 self.insert (pango_attr)
  59
  60
  61 if __name__ == "__main__":
  62         PangoAttrList (None)