/[thuban]/trunk/thuban/Thuban/Model/layer.py
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revision 276 by bh, Fri Aug 23 15:25:07 2002 UTC revision 389 by jonathan, Mon Feb 10 15:25:30 2003 UTC
# Line 10  __version__ = "$Revision$" Line 10  __version__ = "$Revision$"
10  import os  import os
11  from math import log, ceil  from math import log, ceil
12    
13    from Thuban import _
14    
15  import shapelib, shptree  import shapelib, shptree
16    
17  from messages import LAYER_PROJECTION_CHANGED, LAYER_LEGEND_CHANGED, \  from messages import LAYER_PROJECTION_CHANGED, LAYER_LEGEND_CHANGED, \
# Line 19  from color import Color Line 21  from color import Color
21  # Some predefined colors for internal use  # Some predefined colors for internal use
22  _black = Color(0, 0, 0)  _black = Color(0, 0, 0)
23    
24    from classification import Classification
25    
26  from table import Table  from table import Table
27    
# Line 140  class Layer(BaseLayer): Line 143  class Layer(BaseLayer):
143          self.shapetable = Table(filename)          self.shapetable = Table(filename)
144          self.table = self.shapetable          self.table = self.shapetable
145    
146            self.classification = Classification(self)
147            self.classification.SetDefaultStroke(stroke)
148            self.classification.SetDefaultStrokeWidth(stroke_width)
149            self.classification.SetDefaultFill(fill)
150    
151            self.UnsetModified()
152    
153      def open_shapefile(self):      def open_shapefile(self):
154          if self.shapefile is None:          if self.shapefile is None:
155              self.shapefile = shapelib.ShapeFile(self.filename)              self.shapefile = shapelib.ShapeFile(self.filename)
# Line 215  class Layer(BaseLayer): Line 225  class Layer(BaseLayer):
225          """Return the shape with index index"""          """Return the shape with index index"""
226          self.open_shapefile()          self.open_shapefile()
227          shape = self.shapefile.read_object(index)          shape = self.shapefile.read_object(index)
228    
229          if self.shapetype == SHAPETYPE_POINT:          if self.shapetype == SHAPETYPE_POINT:
230              points = shape.vertices()              points = shape.vertices()
231          else:          else:
# Line 223  class Layer(BaseLayer): Line 234  class Layer(BaseLayer):
234              points = []              points = []
235              for x, y in poly:              for x, y in poly:
236                  points.append((x, y))                  points.append((x, y))
237    
238          return Shape(points)          return Shape(points)
239    
240      def ShapesInRegion(self, box):      def ShapesInRegion(self, box):
# Line 239  class Layer(BaseLayer): Line 251  class Layer(BaseLayer):
251          self.projection = projection          self.projection = projection
252          self.changed(LAYER_PROJECTION_CHANGED, self)          self.changed(LAYER_PROJECTION_CHANGED, self)
253    
     def SetFill(self, fill):  
         """Set the layer's fill color. None means the shapes are not filled"""  
         self.fill = fill  
         self.changed(LAYER_LEGEND_CHANGED, self)  
   
     def SetStroke(self, stroke):  
         """Set the layer's stroke color. None means the shapes are not  
         stroked."""  
         self.stroke = stroke  
         self.changed(LAYER_LEGEND_CHANGED, self)  
   
     def SetStrokeWidth(self, width):  
         """Set the layer's stroke width."""  
         self.stroke_width = width  
         self.changed(LAYER_LEGEND_CHANGED, self)  
   
254      def TreeInfo(self):      def TreeInfo(self):
255          items = []          items = []
256    
257          if self.Visible():          if self.Visible():
258              items.append("Shown")              items.append(_("Shown"))
259          else:          else:
260              items.append("Hidden")              items.append(_("Hidden"))
261          items.append("Shapes: %d" % self.NumShapes())          items.append(_("Shapes: %d") % self.NumShapes())
262    
263          bbox = self.LatLongBoundingBox()          bbox = self.LatLongBoundingBox()
264          if bbox is not None:          if bbox is not None:
265              items.append("Extent (lat-lon): (%g, %g, %g, %g)" % bbox)              items.append(_("Extent (lat-lon): (%g, %g, %g, %g)") % bbox)
266          else:          else:
267              items.append("Extent (lat-lon):")              items.append(_("Extent (lat-lon):"))
268          items.append("Shapetype: %s" % shapetype_names[self.ShapeType()])          items.append(_("Shapetype: %s") % shapetype_names[self.ShapeType()])
269    
270          def color_string(color):          def color_string(color):
271              if color is None:              if color is None:
272                  return "None"                  return "None"
273              return "(%.3f, %.3f, %.3f)" % (color.red, color.green, color.blue)              return "(%.3f, %.3f, %.3f)" % (color.red, color.green, color.blue)
         items.append("Fill: " + color_string(self.fill))  
         items.append("Outline: " + color_string(self.stroke))  
274    
275          return ("Layer '%s'" % self.Title(), items)          # layers will always have a classification with at least a NULL data set
276    
277            #items.append((_("Fill: %s") % color_string(self.fill), self.fill))
278            #items.append((_("Outline: %s") % color_string(self.stroke), self.stroke))
279    
280            items.append(self.classification)
281    
282            return (_("Layer '%s'") % self.Title(), items)
283    
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