3f55fe3161
git-svn-id: svn://svn.cy55.de/Zope3/src/cybertools/trunk@2038 fd906abe-77d9-0310-91a1-e0d9ade77398
60 lines
1.9 KiB
Python
60 lines
1.9 KiB
Python
#
|
|
# Copyright (c) 2005 Helmut Merz helmutm@cy55.de
|
|
#
|
|
# 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
|
|
#
|
|
|
|
"""
|
|
View class(es) for images (plots).
|
|
|
|
$Id$
|
|
"""
|
|
|
|
import os
|
|
from zope.interface import Interface, implements
|
|
from zope.cachedescriptors.property import Lazy
|
|
|
|
|
|
class PlotView(object):
|
|
""" Abstract basic view class for Flash movies .
|
|
|
|
The assessment attribute has to be set by the subclass.
|
|
"""
|
|
|
|
def __init__(self, context, request):
|
|
self.context = context
|
|
self.request = request
|
|
self.traverse_subpath = []
|
|
|
|
def publishTraverse(self, request, name):
|
|
self.traverse_subpath.append(name)
|
|
return self
|
|
|
|
def __call__(self):
|
|
path = str('/' + os.path.join(*self.traverse_subpath))
|
|
# TODO: keep path in temporary dictionary with hashed keys.
|
|
self.setHeaders(path)
|
|
f = open(path, 'rb')
|
|
data = f.read()
|
|
f.close()
|
|
return data
|
|
|
|
def setHeaders(self, name=None):
|
|
response = self.request.response
|
|
# TODO: get content type from name (extension)
|
|
response.setHeader('Content-Type', 'image/jpeg')
|
|
response.setHeader('Expires', 'Sat, 1 Jan 2000 00:00:00 GMT');
|
|
response.setHeader('Pragma', 'no-cache');
|
|
|