"""
returns a list of tuples of images arranged to support easy tabling
"""
# Copyright © 2004 Saugus.net, Inc.
# All Rights Reserved.

# This software is subject to the provisions of the Zope Public License,
# Version 2.1 (ZPL). A copy of the ZPL should accompany this distribution.
# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
# FOR A PARTICULAR PURPOSE.

from ZTUtils import LazyFilter

imagePool=[]
for image in LazyFilter(context.objectValues('Portal Image'),skip=''):
  if image.isEntryAllowedByFilter(subjectStr):
   imagePool.append((int(image.width),image))
if len(imagePool)>0:
  tables=[[]]
  tableWidths=[0]
  finalTable=0
  for imageTuple in imagePool:
    for currentTable in range(finalTable+1):
      if tableWidths[currentTable]+int(imageTuple[0])<=windowWidth:
        tables[currentTable].append(imageTuple[1])
        tableWidths[currentTable]=tableWidths[currentTable]+int(imageTuple[0])
        break
    else:
      tables.append([imageTuple[1]])
      tableWidths.append(imageTuple[0])
      finalTable+=1
  return tables
else:
  return None