Image.py 4.45 KB
##############################################################################
#
# Copyright (c) 2002 Nexedi SARL and Contributors. All Rights Reserved.
#                    Jean-Paul Smets-Solanes <jp@nexedi.com>
#
# WARNING: This program as such is intended to be used by professional
# programmers who take the whole responsability of assessing all potential
# consequences resulting from its eventual inadequacies and bugs
# End users who are looking for a ready-to-use solution with commercial
# garantees and support are strongly adviced to contract a Free Software
# Service Company
#
# 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.
#
##############################################################################

from AccessControl import ClassSecurityInfo

from Products.CMFCore.WorkflowCore import WorkflowAction
from Products.ERP5Type import Permissions, PropertySheet, Constraint, Interface
from Products.ERP5Type.Base import Base
from Products.CMFPhoto.CMFPhoto import CMFPhoto
from Products.Photo.Photo import Photo


class Image (Base, CMFPhoto):
  """
    An Image can contain text that can be formatted using
    *Structured Text* or *HTML*. Text can be automatically translated
    through the use of 'message catalogs'.

    A Document is a terminating leaf
    in the OFS. It can not contain anything.

    Document inherits from XMLObject and can
    be synchronized accross multiple sites.
  """

  meta_type = 'ERP5 Image'
  portal_type = 'Image'
  add_permission = Permissions.AddPortalContent
  isPortalContent = 1
  isRADContent = 1

  # Declarative security
  security = ClassSecurityInfo()
  security.declareObjectProtected(Permissions.View)

  # Declarative properties
  property_sheets = ( PropertySheet.Base
                    , PropertySheet.CategoryCore
                    , PropertySheet.DublinCore
                    )

  def __init__( self, id, title='', file='', store='ExtImage'
              , engine='ImageMagick', quality=75, pregen=0, timeout=0):
    Photo.__init__(self, id=id, title=title, file=file, store=store
                  , engine=engine, quality=quality, pregen=pregen, timeout=timeout)
    Base.__init__(self, id=id)
    self._data = ''
    self.store = store

  ### Special edit method
  security.declarePrivate('_edit')
  def _edit(self, **kw):
    """
      This is used to edit files
    """
    if not hasattr(self, '_original'):
      if self.store   == 'Image'   : from Products.Photo.PhotoImage    import PhotoImage
      elif self.store == 'ExtImage': from Products.Photo.ExtPhotoImage import PhotoImage
      self._original = PhotoImage(self.id, self.title, path=self.absolute_url(1))
    if kw.has_key('file'):
      file = kw.get('file')
      precondition = kw.get('precondition')
      CMFPhoto.manage_editPhoto(self, file=file)
      self.manage_purgeDisplays()
      del kw['file']
    Base._edit(self, **kw)

  security.declareProtected('View', 'index_html')
  index_html = CMFPhoto.index_html

  security.declareProtected('AccessContentsInformation', 'content_type')
  content_type = CMFPhoto.content_type

  # Copy support needs to be implemented by ExtFile
  ################################
  # Special management methods   #
  ################################

  def manage_afterClone(self, item):
    Base.manage_afterClone(self, item)
    CMFPhoto.manage_afterClone(self, item)

  def manage_afterAdd(self, item, container):
    CMFPhoto.manage_afterAdd(self, item, container)

  def manage_beforeDelete(self, item, container):
    CMFPhoto.manage_beforeDelete(self, item, container)

  # Some ERPish
  def getWidth(self):
    """
      Alias for width
    """
    return self.width()

  def getHeight(self):
    """
      Alias for width
    """
    return self.height()

  # Aliases for uniform update of data
  def manage_upload(self, file='', REQUEST=None):
    self.manage_file_upload(self, file=file, REQUEST=None)