pyx/resource.py

   1 #!/usr/bin/env python
   2 # -*- coding: ISO-8859-1 -*-
   3 #
   4 #
   5 # Copyright (C) 2003-2005 Jörg Lehmann <joergl@users.sourceforge.net>
   6 # Copyright (C) 2003-2005 André Wobst <wobsta@users.sourceforge.net>
   7 #
   8 # This file is part of PyX (http://pyx.sourceforge.net/).
   9 #
  10 # PyX is free software; you can redistribute it and/or modify
  11 # it under the terms of the GNU General Public License as published by
  12 # the Free Software Foundation; either version 2 of the License, or
  13 # (at your option) any later version.
  14 #
  15 # PyX is distributed in the hope that it will be useful,
  16 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 # GNU General Public License for more details.
  19 #
  20 # You should have received a copy of the GNU General Public License
  21 # along with PyX; if not, write to the Free Software
  22 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  23
  24 """resource module:
  25
  26 This module contains various resources like fonts and definitions
  27 needed by canvasitems and a resource registry class.
  28
  29 """
  30
  31 import pswriter, pdfwriter
  32
  33 class resource:
  34
  35     """ a resource needed by a canvasitem """
  36
  37     def __init__(self, id):
  38         self.id = id
  39
  40     def PSregister(self, registry):
  41         return []
  42
  43
  44 #
  45 # various standard resources
  46 #
  47
  48 class definition(resource):
  49
  50     """ function definition """
  51
  52     def __init__(self, id, body):
  53         self.id = id
  54         self.body = body
  55
  56     def PSregister(self, registry):
  57         pswriter.PSdefinition(self.id, self.body).register(registry)
  58
  59
  60 class font(resource):
  61
  62     """ font definition """
  63
  64     def __init__(self, font):
  65         """ include Type 1 font defined by the following parameters """
  66         # XXX passing the font instance is probably not so nice
  67         self.id = self.fontname = font.getpsname()
  68         self.basepsname = font.getbasepsname()
  69         self.fontfile = font.getfontfile()
  70         self.encodingfile = font.getencodingfile()
  71         self.encoding = font.getencoding()
  72         self.usedchars = font.usedchars
  73         self.font = font
  74
  75     def PSregister(self, registry):
  76         if self.fontfile:
  77             registry.add(pswriter.PSfontfile(self.basepsname, self.fontfile, self.encodingfile, self.usedchars))
  78         if self.encoding:
  79             registry.add(pswriter._ReEncodeFont)
  80             registry.add(pswriter.PSfontencoding(self.encoding, self.encodingfile))
  81             registry.add(pswriter.PSfontreencoding(self.fontname, self.basepsname, self.encoding))
  82
  83     def PDFregister(self, registry):
  84         registry.add(pdfwriter.PDFfont(self.fontname, self.basepsname, self.font))