source: main/waeup.sirp/trunk/src/waeup/sirp/image/image.py @ 6309

##
## image.py
## Login : <uli@pu.smp.net>
## Started on  Mon Apr 25 12:32:42 2011 Uli Fouquet
## $Id$
## 
## Copyright (C) 2011 Uli Fouquet
## This program is free software; you can redistribute it and/or modify
## it under the terms of the GNU General Public License as published by
## the Free Software Foundation; either version 2 of the License, or
## (at your option) any later version.
## 
## This program is distributed in the hope that it will be useful,
## but WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
## GNU General Public License for more details.
## 
## You should have received a copy of the GNU General Public License
## along with this program; if not, write to the Free Software
## Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
##
"""
Components for handling image files.
"""
import os
from ZODB.blob import Blob
from hurry.file import HurryFile
from zope.interface import implements
from waeup.sirp.image.interfaces import IWAeUPImageFile

class WAeUPImageFile(HurryFile):
    """A file prepared for storing image files.

    This file type is built upon :class:`hurry.file.HurryFile`.
    """
    implements(IWAeUPImageFile)

    def __init__(self, filename, data):
        self.filename = filename
        self._file = Blob(data)
        self.headers = {}

    def _getFile(self):
        return self._file.open('r')

    file = property(_getFile)

    @property
    def size(self):
        f = self._file.open('r')
        size = int(os.fstat(f.fileno()).st_size)
        f.close()
        return size

    @property
    def data(self):
        f = self._file.open('r')
        result = f.read()
        f.close()
        return result