/[thuban]/branches/WIP-pyshapelib-bramz/Thuban/Model/load.py
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revision 1930 by bh, Tue Nov 11 13:24:41 2003 UTC revision 2104 by bh, Fri Mar 12 12:19:15 2004 UTC
# Line 1  Line 1 
1  # Copyright (C) 2001, 2002, 2003 by Intevation GmbH  # Copyright (C) 2001, 2002, 2003, 2004 by Intevation GmbH
2  # Authors:  # Authors:
3  # Jan-Oliver Wagner <[email protected]>  # Jan-Oliver Wagner <[email protected]>
4  # Bernhard Herzog <[email protected]>  # Bernhard Herzog <[email protected]>
# Line 143  class SessionLoader(XMLReader): Line 143  class SessionLoader(XMLReader):
143          for xmlns in ("http://thuban.intevation.org/dtds/thuban-0.8.dtd",          for xmlns in ("http://thuban.intevation.org/dtds/thuban-0.8.dtd",
144                        "http://thuban.intevation.org/dtds/thuban-0.9-dev.dtd",                        "http://thuban.intevation.org/dtds/thuban-0.9-dev.dtd",
145                        "http://thuban.intevation.org/dtds/thuban-0.9.dtd",                        "http://thuban.intevation.org/dtds/thuban-0.9.dtd",
146                        "http://thuban.intevation.org/dtds/thuban-1.0-dev.dtd"):                        "http://thuban.intevation.org/dtds/thuban-1.0-dev.dtd",
147                          "http://thuban.intevation.org/dtds/thuban-1.0rc1.dtd",
148                          "http://thuban.intevation.org/dtds/thuban-1.0.0.dtd",
149                          "http://thuban.intevation.org/dtds/thuban-1.1-dev.dtd"):
150              for key, value in dispatchers.items():              for key, value in dispatchers.items():
151                  dispatchers[(xmlns, key)] = value                  dispatchers[(xmlns, key)] = value
152    
# Line 186  class SessionLoader(XMLReader): Line 189  class SessionLoader(XMLReader):
189          If the attribute has a default value and it is not present in          If the attribute has a default value and it is not present in
190          attrs, use that default value as the value in the returned dict.          attrs, use that default value as the value in the returned dict.
191    
192          If a conversion is specified, convert the value before putting          The value is converted before putting it into the returned dict.
193          it into the returned dict. The following conversions are          The following conversions are available:
         available:  
194    
195             'filename' -- The attribute is a filename.             'filename' -- The attribute is a filename.
196    
# Line 212  class SessionLoader(XMLReader): Line 214  class SessionLoader(XMLReader):
214                        ascii encoding.                        ascii encoding.
215    
216             a callable -- The attribute value is passed to the callable             a callable -- The attribute value is passed to the callable
217                           and the return value is used a as the converted                           and the return value is used as the converted
218                           value                           value
219    
220            If no conversion is specified for an attribute it is converted
221            with self.encode.
222          """          """
223          normalized = {}          normalized = {}
224    
# Line 247  class SessionLoader(XMLReader): Line 252  class SessionLoader(XMLReader):
252              elif d.conversion:              elif d.conversion:
253                  # Assume it's a callable                  # Assume it's a callable
254                  value = d.conversion(value)                  value = d.conversion(value)
255                else:
256                   value = self.encode(value)
257    
258              normalized[d.name] = value              normalized[d.name] = value
259          return normalized          return normalized
# Line 294  class SessionLoader(XMLReader): Line 301  class SessionLoader(XMLReader):
301                                    AttrDesc("dbconn", True,                                    AttrDesc("dbconn", True,
302                                             conversion = "idref"),                                             conversion = "idref"),
303                                    AttrDesc("tablename", True,                                    AttrDesc("tablename", True,
304                                               conversion = "ascii"),
305                                      # id_column and geometry_column were
306                                      # newly introduced with thuban-1.1.dtd
307                                      # where they're required.  Since we
308                                      # support the older formats too we
309                                      # have them optional here.
310                                      AttrDesc("id_column", False, "gid",
311                                               conversion = "ascii"),
312                                      AttrDesc("geometry_column", False,
313                                             conversion = "ascii")])                                             conversion = "ascii")])
314          ID = attrs["id"]          # The default value of geometry_column to use when instantiating
315          db = attrs["dbconn"]          # the db shapestore is None which we currently can't easily use
316          tablename = attrs["tablename"]          # in check_attrs
317          self.idmap[ID] = self.theSession.OpenDBShapeStore(db, tablename)          geometry_column = attrs["geometry_column"]
318            if not geometry_column:
319                geometry_column = None
320            dbopen = self.theSession.OpenDBShapeStore
321            self.idmap[attrs["id"]] = dbopen(attrs["dbconn"], attrs["tablename"],
322                                             id_column = attrs["id_column"],
323                                             geometry_column=geometry_column)
324    
325      def start_fileshapesource(self, name, qname, attrs):      def start_fileshapesource(self, name, qname, attrs):
326          attrs = self.check_attrs(name, attrs,          attrs = self.check_attrs(name, attrs,
# Line 446  class SessionLoader(XMLReader): Line 468  class SessionLoader(XMLReader):
468          self.aLayer = None          self.aLayer = None
469    
470      def start_classification(self, name, qname, attrs):      def start_classification(self, name, qname, attrs):
471          field = attrs.get((None, 'field'), None)          attrs = self.check_attrs(name, attrs,
472                                     [AttrDesc("field", True),
473                                      AttrDesc("field_type", True)])
474            field = attrs["field"]
475            fieldType = attrs["field_type"]
476    
         fieldType = attrs.get((None, 'field_type'), None)  
477          dbFieldType = self.aLayer.GetFieldType(field)          dbFieldType = self.aLayer.GetFieldType(field)
478    
479          if fieldType != dbFieldType:          if fieldType != dbFieldType:
# Line 538  class SessionLoader(XMLReader): Line 563  class SessionLoader(XMLReader):
563          self.aLayer = self.aMap.LabelLayer()          self.aLayer = self.aMap.LabelLayer()
564    
565      def start_label(self, name, qname, attrs):      def start_label(self, name, qname, attrs):
566          x = float(attrs[(None, 'x')])          attrs = self.check_attrs(name, attrs,
567          y = float(attrs[(None, 'y')])                                   [AttrDesc("x", True, conversion = float),
568          text = self.encode(attrs[(None, 'text')])                                    AttrDesc("y", True, conversion = float),
569          halign = attrs[(None, 'halign')]                                    AttrDesc("text", True),
570          valign = attrs[(None, 'valign')]                                    AttrDesc("halign", True,
571                                               conversion = "ascii"),
572                                      AttrDesc("valign", True,
573                                               conversion = "ascii")])
574            x = attrs['x']
575            y = attrs['y']
576            text = attrs['text']
577            halign = attrs['halign']
578            valign = attrs['valign']
579            if halign not in ("left", "center", "right"):
580                raise LoadError("Unsupported halign value %r" % halign)
581            if valign not in ("top", "center", "bottom"):
582                raise LoadError("Unsupported valign value %r" % valign)
583          self.aLayer.AddLabel(x, y, text, halign = halign, valign = valign)          self.aLayer.AddLabel(x, y, text, halign = halign, valign = valign)
584    
585      def characters(self, chars):      def characters(self, chars):
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