font/metric.py

   1 # -*- encoding: utf-8 -*-
   2 #
   3 #
   4 # Copyright (C) 2007-2011 Jörg Lehmann <joergl@users.sourceforge.net>
   5 # Copyright (C) 2007-2011 André Wobst <wobsta@users.sourceforge.net>
   6 #
   7 # This file is part of PyX (http://pyx.sourceforge.net/).
   8 #
   9 # PyX is free software; you can redistribute it and/or modify
  10 # it under the terms of the GNU General Public License as published by
  11 # the Free Software Foundation; either version 2 of the License, or
  12 # (at your option) any later version.
  13 #
  14 # PyX is distributed in the hope that it will be useful,
  15 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 # GNU General Public License for more details.
  18 #
  19 # You should have received a copy of the GNU General Public License
  20 # along with PyX; if not, write to the Free Software
  21 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
  22
  23
  24 class metric:
  25
  26     def width_ds(self, glyphname):
  27         raise NotImplementedError()
  28
  29     def width_pt(self, glyphnames, size_pt):
  30         raise NotImplementedError()
  31
  32     def height_pt(self, glyphnames, size_pt):
  33         raise NotImplementedError()
  34
  35     def depth_pt(self, glyphnames, size_pt):
  36         raise NotImplementedError()
  37
  38     def resolveligatures(self, glyphnames):
  39         return glyphnames
  40
  41     def resolvekernings(self, glyphnames, size_pt=None):
  42         result = [None]*(2*len(glyphnames)-1)
  43         for i, glyphname in enumerate(glyphnames):
  44             result[2*i] = glyphname
  45         return result