root / pkpgcounter / trunk / pkpgpdls / pil.py @ 508

Revision 501, 1.9 kB (checked in by jerome, 17 years ago)

Added parser for all image formats supported by PIL.

  • Property svn:eol-style set to native
  • Property svn:keywords set to Author Date Id Revision
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1#! /usr/bin/env python
2# -*- coding: ISO-8859-15 -*-
3#
4# pkpgcounter : a generic Page Description Language parser
5#
6# (c) 2003, 2004, 2005, 2006, 2007 Jerome Alet <alet@librelogiciel.com>
7# This program is free software: you can redistribute it and/or modify
8# it under the terms of the GNU General Public License as published by
9# the Free Software Foundation, either version 3 of the License, or
10# (at your option) any later version.
11#
12# This program 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 General Public License for more details.
16#
17# You should have received a copy of the GNU General Public License
18# along with this program.  If not, see <http://www.gnu.org/licenses/>.
19#
20# $Id$
21#
22
23"""This modules implements a page counter for image formats supported by the Python Imaging Library."""
24
25from PIL import Image
26
27import pdlparser
28import version
29
30class Parser(pdlparser.PDLParser) :
31    """A parser for plain text documents."""
32    totiffcommands = [ 'convert "%(infname)s" "%(outfname)s"',
33                     ] 
34    def isValid(self) :   
35        """Returns True if data is an image format supported by PIL, else False."""   
36        try :
37            image = Image.open(self.filename)
38        except IOError :   
39            return False
40        else :   
41            self.logdebug("DEBUG: Input file seems to be an image in the %s (%s) format." % (image.format, image.format_description))
42            return True
43           
44    def getJobSize(self) :
45        """Counts pages in an image file."""
46        index = 0
47        image = Image.open(self.filename)
48        try :
49            while True :
50                index += 1             
51                image.seek(index)
52        except EOFError :       
53            pass
54        return index   
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