/[thuban]/branches/WIP-pyshapelib-bramz/Thuban/Model/load.py
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revision 390 by jonathan, Mon Feb 10 15:25:49 2003 UTC revision 465 by jonathan, Wed Mar 5 18:18:06 2003 UTC
# Line 2  Line 2 
2  # Authors:  # Authors:
3  # Jan-Oliver Wagner <[email protected]>  # Jan-Oliver Wagner <[email protected]>
4  # Bernhard Herzog <[email protected]>  # Bernhard Herzog <[email protected]>
5    # Jonathan Coles <[email protected]>
6  #  #
7  # This program is free software under the GPL (>=v2)  # This program is free software under the GPL (>=v2)
8  # Read the file COPYING coming with GRASS for details.  # Read the file COPYING coming with GRASS for details.
# Line 19  import xml.sax.handler Line 20  import xml.sax.handler
20  from xml.sax import make_parser, ErrorHandler  from xml.sax import make_parser, ErrorHandler
21    
22  from Thuban import _  from Thuban import _
23    from Thuban.common import *
24    
25  from Thuban.Model.session import Session  from Thuban.Model.session import Session
26  from Thuban.Model.map import Map  from Thuban.Model.map import Map
27  from Thuban.Model.layer import Layer  from Thuban.Model.layer import Layer
28  from Thuban.Model.color import Color  from Thuban.Model.color import Color
29  from Thuban.Model.proj import Projection  from Thuban.Model.proj import Projection
30  from Thuban.Model.classification import Classification, ClassData  from Thuban.Model.classification import Classification, \
31        ClassGroupDefault, ClassGroupSingleton, ClassGroupRange, ClassGroupMap, \
32        ClassGroupProperties
33    
34    
35  def parse_color(color):  def parse_color(color):
# Line 35  def parse_color(color): Line 40  def parse_color(color):
40      """      """
41      color = string.strip(color)      color = string.strip(color)
42      if color == "None":      if color == "None":
43          result = None          result = Color.None
44      elif color[0] == '#':      elif color[0] == '#':
45          if len(color) == 7:          if len(color) == 7:
46              r = string.atoi(color[1:3], 16) / 255.0              r = string.atoi(color[1:3], 16) / 255.0
# Line 146  class ProcessSession(xml.sax.handler.Con Line 151  class ProcessSession(xml.sax.handler.Con
151          stroke = parse_color(attrs.get((None, 'stroke'), "#000000"))          stroke = parse_color(attrs.get((None, 'stroke'), "#000000"))
152          stroke_width = int(attrs.get((None, 'stroke_width'), "1"))          stroke_width = int(attrs.get((None, 'stroke_width'), "1"))
153          self.aLayer = layer_class(title, filename, fill = fill,          self.aLayer = layer_class(title, filename, fill = fill,
154                                    stroke = stroke, stroke_width = stroke_width)                                    stroke = stroke, lineWidth = stroke_width)
155      start_dispatcher['layer'] = "start_layer"      start_dispatcher['layer'] = "start_layer"
156    
157      def end_layer(self, name, qname):      def end_layer(self, name, qname):
# Line 154  class ProcessSession(xml.sax.handler.Con Line 159  class ProcessSession(xml.sax.handler.Con
159      end_dispatcher['layer'] = "end_layer"      end_dispatcher['layer'] = "end_layer"
160    
161      def start_classification(self, name, qname, attrs):      def start_classification(self, name, qname, attrs):
162          self.aLayer.classification.SetField(attrs.get((None, 'field'), None))          field = attrs.get((None, 'field'), None)
163    
164            fieldType = attrs.get((None, 'field_type'), None)
165            dbFieldType = self.aLayer.GetFieldType(field)
166    
167            if fieldType != dbFieldType:
168                raise ValueError(_("xml field type differs from database!"))
169    
170            # setup conversion routines depending on the kind of data
171            # we will be seeing later on
172            if fieldType == FIELDTYPE_STRING:
173                self.conv = str
174            elif fieldType == FIELDTYPE_INT:
175                self.conv = lambda p: int(float(p))
176            elif fieldType == FIELDTYPE_DOUBLE:
177                self.conv = float
178    
179            self.aLayer.GetClassification().SetField(field)
180    
181      start_dispatcher['classification'] = "start_classification"      start_dispatcher['classification'] = "start_classification"
182    
183      def end_classification(self, name, qname):      def end_classification(self, name, qname):
# Line 162  class ProcessSession(xml.sax.handler.Con Line 185  class ProcessSession(xml.sax.handler.Con
185      end_dispatcher['classification'] = "end_classification"      end_dispatcher['classification'] = "end_classification"
186    
187      def start_clnull(self, name, qname, attrs):      def start_clnull(self, name, qname, attrs):
188          self.cl_data = ClassData()          self.cl_group = ClassGroupDefault()
189            self.cl_group.SetLabel(attrs.get((None, 'label'), ""))
190            self.cl_prop = ClassGroupProperties()
191      start_dispatcher['clnull'] = "start_clnull"      start_dispatcher['clnull'] = "start_clnull"
192    
193      def end_clnull(self, name, qname):      def end_clnull(self, name, qname):
194          self.aLayer.classification.SetDefaultData(self.cl_data)          self.cl_group.SetProperties(self.cl_prop)
195          del self.cl_data          self.aLayer.GetClassification().SetDefaultGroup(self.cl_group)
196            del self.cl_group, self.cl_prop
197      end_dispatcher['clnull'] = "end_clnull"      end_dispatcher['clnull'] = "end_clnull"
198    
199      def start_clpoint(self, name, qname, attrs):      def start_clpoint(self, name, qname, attrs):
200          attrib_value = attrs.get((None, 'value'), "0")          attrib_value = attrs.get((None, 'value'), "0")
201    
202          try:          #try:
203              self.cl_value  = int(attrib_value)              #value  = Str2Num(attrib_value)
204          except:          #except:
205              self.cl_value  = attrib_value              #value  = attrib_value
206    
207            value = self.conv(attrib_value)
208    
209            self.cl_group = ClassGroupSingleton(value)
210            self.cl_group.SetLabel(attrs.get((None, 'label'), ""))
211            self.cl_prop = ClassGroupProperties()
212    
         self.cl_data = ClassData()  
213      start_dispatcher['clpoint'] = "start_clpoint"      start_dispatcher['clpoint'] = "start_clpoint"
214    
215      def end_clpoint(self, name, qname):      def end_clpoint(self, name, qname):
216          self.aLayer.classification.AddPoint(self.cl_value, self.cl_data)          self.cl_group.SetProperties(self.cl_prop)
217          del self.cl_value, self.cl_data          self.aLayer.GetClassification().AddGroup(self.cl_group)
218            del self.cl_group, self.cl_prop
219      end_dispatcher['clpoint'] = "end_clpoint"      end_dispatcher['clpoint'] = "end_clpoint"
220    
221      def start_clrange(self, name, qname, attrs):      def start_clrange(self, name, qname, attrs):
222    
223          try:          try:
224              self.cl_low = int(attrs.get((None, 'low'), "0"))              min = self.conv(attrs.get((None, 'min'), "0"))
225              self.cl_high = int(attrs.get((None, 'high'), "0"))              max = self.conv(attrs.get((None, 'max'), "0"))
226                #min = Str2Num(attrs.get((None, 'min'), "0"))
227                #max = Str2Num(attrs.get((None, 'max'), "0"))
228          except ValueError:          except ValueError:
229              raise ValueError(_("Classification range is not a number!"))              raise ValueError(_("Classification range is not a number!"))
230    
231          self.cl_data = ClassData()          self.cl_group = ClassGroupRange(min, max)
232            self.cl_group.SetLabel(attrs.get((None, 'label'), ""))
233            self.cl_prop = ClassGroupProperties()
234    
235      start_dispatcher['clrange'] = "start_clrange"      start_dispatcher['clrange'] = "start_clrange"
236    
237      def end_clrange(self, name, qname):      def end_clrange(self, name, qname):
238          self.aLayer.classification.AddRange(          self.cl_group.SetProperties(self.cl_prop)
239              self.cl_low, self.cl_high, self.cl_data)          self.aLayer.GetClassification().AddGroup(self.cl_group)
240          del self.cl_low, self.cl_high, self.cl_data          del self.cl_group, self.cl_prop
241      end_dispatcher['clrange'] = "end_clrange"      end_dispatcher['clrange'] = "end_clrange"
242    
243      def start_cldata(self, name, qname, attrs):      def start_cldata(self, name, qname, attrs):
244          self.cl_data.SetStroke(parse_color(attrs.get((None, 'stroke'), "None")))          self.cl_prop.SetLineColor(
245          self.cl_data.SetStrokeWidth(              parse_color(attrs.get((None, 'stroke'), "None")))
246            self.cl_prop.SetLineWidth(
247              int(attrs.get((None, 'stroke_width'), "0")))              int(attrs.get((None, 'stroke_width'), "0")))
248          self.cl_data.SetFill(parse_color(attrs.get((None, 'fill'), "None")))          self.cl_prop.SetFill(parse_color(attrs.get((None, 'fill'), "None")))
249      start_dispatcher['cldata'] = "start_cldata"      start_dispatcher['cldata'] = "start_cldata"
250    
251      def end_cldata(self, name, qname):      def end_cldata(self, name, qname):
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