diff options
Diffstat (limited to 'serialize.py')
| -rw-r--r-- | serialize.py | 206 |
1 files changed, 206 insertions, 0 deletions
diff --git a/serialize.py b/serialize.py new file mode 100644 index 0000000..3da2df0 --- /dev/null +++ b/serialize.py @@ -0,0 +1,206 @@ +import xml.dom.minidom +from xml.dom.minidom import getDOMImplementation +from xml.dom.minidom import parse +import cStringIO +import os +import gtk + +from sugar.datastore import datastore + +from constants import Constants +from instance import Instance +import utils +from recorded import Recorded +import recorded +from savedmap import SavedMap + +def fillMediaHash( index, m ): + doc = None + if (os.path.exists(index)): + try: + doc = parse( os.path.abspath(index) ) + except: + doc = None + if (doc == None): + return + + try: + lastLat = doc.documentElement.getAttributeNode(Constants.mapLat).nodeValue + lastLng = doc.documentElement.getAttributeNode(Constants.mapLng).nodeValue + lastZoom = doc.documentElement.getAttributeNode(Constants.mapZoom).nodeValue + m.ca.preComet() + m.ca.cometLogic.handleReceivedMap(lastLat,lastLng,lastZoom) + m.ca.postComet() + except: + # likely an old saved map + lastLat = 0 + + recdElements = doc.documentElement.getElementsByTagName(Constants.recdMapItem) + for el in recdElements: + _loadMediaIntoHash( el, m ) + + saveElements = doc.documentElement.getElementsByTagName(Constants.recdSavedMapItem) + for el in saveElements: + _loadSavedMap( el, m ) + + saveElements = doc.documentElement.getElementsByTagName(Constants.recdInfoMarker) + for el in saveElements: + _loadInfoMarker( el, m ) + + saveElements = doc.documentElement.getElementsByTagName(Constants.recdLine) + for el in saveElements: + _loadLine( el, m ) + +def _loadSavedMap( el, m ): + latNode = el.getAttributeNode(Constants.recdLat) + lat = latNode.nodeValue + lngNode = el.getAttributeNode(Constants.recdLng) + lng = lngNode.nodeValue + + zoomNode = el.getAttributeNode(Constants.recdZoom) + zoom = zoomNode.nodeValue + notesNode = el.getAttributeNode(Constants.recdNotes) + notes = notesNode.nodeValue + tagsNode = el.getAttributeNode(Constants.recdTags) + tags = tagsNode.nodeValue + + m.ca.addSavedMap(lat,lng,zoom,notes,False) + +def _loadInfoMarker( el, m ): + latNode = el.getAttributeNode(Constants.recdLat) + lat = latNode.nodeValue + lngNode = el.getAttributeNode(Constants.recdLng) + lng = lngNode.nodeValue + infoNode = el.getAttributeNode(Constants.recdInfo) + info = infoNode.nodeValue + iconNode = el.getAttributeNode(Constants.recdIcon) + icon = iconNode.nodeValue + m.setInfo(lat,lng,info,icon) + +def _loadLine( el, m ): + idNode = el.getAttributeNode(Constants.lineID) + id = idNode.nodeValue + colorNode = el.getAttributeNode(Constants.lineColor) + color = colorNode.nodeValue + thickNode = el.getAttributeNode(Constants.lineThick) + thick = thickNode.nodeValue + ptsNode = el.getAttributeNode(Constants.linePts) + pts = ptsNode.nodeValue + m.setLine(id,color,thick,pts) + +def _loadMediaIntoHash( el, m ): + if (el.getAttributeNode(Constants.recdDatastoreId) == None): + return + + datastoreNode = el.getAttributeNode(Constants.recdDatastoreId) + if (datastoreNode != None): + datastoreId = datastoreNode.nodeValue + if (datastoreId != None): + #quickly check: if you have a datastoreId that the file hasn't been deleted, + #cause if you do, we need to flag your removal + #2904 trac + datastoreOb = getMediaFromDatastore(datastoreId) + if (datastoreOb != None): + + lat = 0 + lng = 0 + + if (el.getAttributeNode(Constants.recdLat) != None): + latNode = el.getAttributeNode(Constants.recdLat) + lat = latNode.nodeValue + else: + return + + if (el.getAttributeNode(Constants.recdLng) != None): + lngNode = el.getAttributeNode(Constants.recdLng) + lng = lngNode.nodeValue + else: + return + + m.addMedia( lat, lng, datastoreOb ) + + +def getMediaFromDatastore( id ): + mediaObject = None + try: + mediaObject = datastore.get( id ) + finally: + if (mediaObject == None): + return None + + return mediaObject + + +def fillRecdFromNode( recd, el ): + latNode = el.getAttributeNode(Constants.recdLat) + if (latNode != None): + recd.latitude = latNode.nodeValue + lngNode = el.getAttributeNode(Constants.recdLng) + if (lngNode != None): + recd.longitude = lngNode.nodeValue + + return recd + + +def _addRecdXmlAttrs( el, recd ): + el.setAttribute(Constants.recdDatastoreId, str(recd.datastoreId)) + el.setAttribute(Constants.recdLat, str(recd.latitude)) + el.setAttribute(Constants.recdLng, str(recd.longitude)) + +def _addInfoXmlAttrs( el, recd ): + el.setAttribute(Constants.recdInfo, recd[2]) + el.setAttribute(Constants.recdIcon, recd[3]) + el.setAttribute(Constants.recdLat, str(recd[0])) + el.setAttribute(Constants.recdLng, str(recd[1])) + +def _addLineXmlAttrs( el, recd ): + el.setAttribute(Constants.lineID, recd[0]) + el.setAttribute(Constants.lineColor, recd[1]) + el.setAttribute(Constants.lineThick, recd[2]) + el.setAttribute(Constants.linePts, recd[3]) + +def _addSaveXmlAttrs( el, smap ): + el.setAttribute(Constants.recdLat, str(smap.lat)) + el.setAttribute(Constants.recdLng, str(smap.lng)) + el.setAttribute(Constants.recdZoom, str(smap.zoom)) + el.setAttribute(Constants.recdNotes, str(smap.notes)) + el.setAttribute(Constants.recdTags, smap.tags) + #el.setAttribute(Constants.recdDensity, str(smap.density)) + + if (smap.recdDatastoreId != None): + el.setAttribute(Constants.recdRecdId, smap.recdDatastoreId) + el.setAttribute(Constants.recdRecdLat, smap.recdLat) + el.setAttribute(Constants.recdRecdLng, smap.recdLng) + + +def saveMediaHash( m ): + impl = getDOMImplementation() + album = impl.createDocument(None, Constants.recdAlbum, None) + root = album.documentElement + root.setAttribute(Constants.mapLat, m.ca.NOW_MAP_CENTER_LAT) + root.setAttribute(Constants.mapLng, m.ca.NOW_MAP_CENTER_LNG) + root.setAttribute(Constants.mapZoom, m.ca.NOW_MAP_ZOOM) + + for i in range (0, len(m.recs)): + recd = m.recs[i] + mediaEl = album.createElement(Constants.recdMapItem) + root.appendChild( mediaEl ) + _addRecdXmlAttrs( mediaEl, recd ) + + for k, iMarker in m.infoMarkers.iteritems(): + mediaEl = album.createElement(Constants.recdInfoMarker) + root.appendChild( mediaEl ) + _addInfoXmlAttrs( mediaEl, iMarker.split(";~") ) + + for k, iMarker in m.lineData.iteritems(): + mediaEl = album.createElement(Constants.recdLine) + root.appendChild( mediaEl ) + _addLineXmlAttrs( mediaEl, iMarker.split(";~") ) + + for i in range (0, len(m.savedMaps)): + smap = m.savedMaps[i] + saveEl = album.createElement(Constants.recdSavedMapItem) + root.appendChild( saveEl ) + _addSaveXmlAttrs( saveEl, smap ) + + return album |