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comparison documentViewer.py @ 613:c57d80a649ea

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CLOSED - # 281: List of thumbnails verschluckt Seite, wenn odd-scan-position gesetzt ist https://it-dev.mpiwg-berlin.mpg.de/tracs/mpdl-project-software/ticket/281
author casties
date Thu, 17 Oct 2013 16:25:39 +0200
parents a79e4e4b3e37
children d6eca930a534 7aefbddddaf9
comparison
equal deleted inserted replaced
612:a79e4e4b3e37 613:c57d80a649ea
2 from Products.PageTemplates.ZopePageTemplate import ZopePageTemplate 2 from Products.PageTemplates.ZopePageTemplate import ZopePageTemplate
3 from Products.PageTemplates.PageTemplateFile import PageTemplateFile 3 from Products.PageTemplates.PageTemplateFile import PageTemplateFile
4 from App.ImageFile import ImageFile 4 from App.ImageFile import ImageFile
5 from AccessControl import ClassSecurityInfo 5 from AccessControl import ClassSecurityInfo
6 from AccessControl import getSecurityManager 6 from AccessControl import getSecurityManager
7 from Globals import package_home
8 7
9 import xml.etree.ElementTree as ET 8 import xml.etree.ElementTree as ET
10 9
11 import os 10 import os
12 import sys
13 import urllib 11 import urllib
14 import logging 12 import logging
15 import math 13 import math
16 import urlparse 14 import urlparse
17 import re
18 import string
19 import json 15 import json
20 16
21 from Products.MetaDataProvider import MetaDataFolder 17 from Products.MetaDataProvider import MetaDataFolder
22 18
23 from SrvTxtUtils import getInt, utf8ify, getText, getHttpData, refreshingImageFileIndexHtml 19 from SrvTxtUtils import getInt, utf8ify, getText, getHttpData, refreshingImageFileIndexHtml
24 20
25 def serializeNode(node, encoding="utf-8"):
26 """returns a string containing node as XML"""
27 s = ET.tostring(node)
28
29 # 4Suite:
30 # stream = cStringIO.StringIO()
31 # Ft.Xml.Domlette.Print(node, stream=stream, encoding=encoding)
32 # s = stream.getvalue()
33 # stream.close()
34 return s
35 21
36 def getMDText(node): 22 def getMDText(node):
37 """returns the @text content from the MetaDataProvider metadata node""" 23 """returns the @text content from the MetaDataProvider metadata node"""
38 if isinstance(node, dict): 24 if isinstance(node, dict):
39 return node.get('@text', None) 25 return node.get('@text', None)
991 977
992 return pageinfo 978 return pageinfo
993 979
994 980
995 def getPageBatch(self, start=1, rows=10, cols=2, pageFlowLtr=True, pageZero=False, minIdx=1, maxIdx=0): 981 def getPageBatch(self, start=1, rows=10, cols=2, pageFlowLtr=True, pageZero=False, minIdx=1, maxIdx=0):
996 """returns dict with array of page information for one screenfull of thumbnails""" 982 """Return dict with array of page information for one screenfull of thumbnails.
983
984 :param start: index of current page
985 :param rows: number of rows in one batch
986 :param cols: number of columns in one batch
987 :param pageFlowLtr: do indexes increase from left to right
988 :param pageZero: is there a zeroth non-visible page
989 :param minIdx: minimum index to use
990 :param maxIdx: maximum index to use
991 :returns: dict with
992 first: first page index
993 last: last page index
994 batches: list of all possible batches(dict: 'start': index, 'end': index)
995 pages: list for current batch of rows(list of cols(list of pages(dict: 'idx': index)))
996 nextStart: first index of next batch
997 prevStart: first index of previous batch
998 """
997 logging.debug("getPageBatch start=%s minIdx=%s maxIdx=%s"%(start,minIdx,maxIdx)) 999 logging.debug("getPageBatch start=%s minIdx=%s maxIdx=%s"%(start,minIdx,maxIdx))
998 batch = {} 1000 batch = {}
999 grpsize = rows * cols 1001 grpsize = rows * cols
1000 if maxIdx == 0: 1002 if maxIdx == 0:
1001 maxIdx = start + grpsize 1003 maxIdx = start + grpsize
1002 1004
1003 np = maxIdx - minIdx + 1 1005 np = maxIdx - minIdx + 1
1006 if pageZero:
1007 # correct number of pages for batching
1008 np += 1
1009
1004 nb = int(math.ceil(np / float(grpsize))) 1010 nb = int(math.ceil(np / float(grpsize)))
1011
1005 # list of all batch start and end points 1012 # list of all batch start and end points
1006 batches = [] 1013 batches = []
1007 if pageZero: 1014 if pageZero:
1008 ofs = minIdx - 1 1015 ofs = minIdx - 1
1009 else: 1016 else:
1014 e = min((i + 1) * grpsize + ofs - 1, maxIdx) 1021 e = min((i + 1) * grpsize + ofs - 1, maxIdx)
1015 batches.append({'start':s, 'end':e}) 1022 batches.append({'start':s, 'end':e})
1016 1023
1017 batch['batches'] = batches 1024 batch['batches'] = batches
1018 1025
1026 # list of pages for current screen
1019 pages = [] 1027 pages = []
1020 if pageZero and start == minIdx: 1028 if pageZero and start == minIdx:
1021 # correct beginning 1029 # correct beginning
1022 idx = minIdx - 1 1030 idx = minIdx - 1
1023 else: 1031 else:
1043 batch['prevStart'] = max(start - grpsize, minIdx) 1051 batch['prevStart'] = max(start - grpsize, minIdx)
1044 else: 1052 else:
1045 batch['prevStart'] = None 1053 batch['prevStart'] = None
1046 1054
1047 if start + grpsize <= maxIdx: 1055 if start + grpsize <= maxIdx:
1048 batch['nextStart'] = start + grpsize 1056 if pageZero and start == minIdx:
1057 # correct nextStart for pageZero
1058 batch['nextStart'] = grpsize
1059 else:
1060 batch['nextStart'] = start + grpsize
1049 else: 1061 else:
1050 batch['nextStart'] = None 1062 batch['nextStart'] = None
1051 1063
1052 batch['pages'] = pages 1064 batch['pages'] = pages
1053 batch['first'] = minIdx 1065 batch['first'] = minIdx
1054 batch['last'] = maxIdx 1066 batch['last'] = maxIdx
1067 logging.debug("batch: %s"%repr(batch))
1055 return batch 1068 return batch
1069
1056 1070
1057 def getBatch(self, start=1, size=10, end=0, data=None, fullData=True): 1071 def getBatch(self, start=1, size=10, end=0, data=None, fullData=True):
1058 """returns dict with information for one screenfull of data.""" 1072 """returns dict with information for one screenfull of data."""
1059 batch = {} 1073 batch = {}
1060 if end == 0: 1074 if end == 0: