/[thuban]/branches/WIP-pyshapelib-bramz/Thuban/UI/renderer.py
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revision 290 by bh, Thu Aug 29 14:11:28 2002 UTC revision 374 by jan, Mon Jan 27 14:20:02 2003 UTC
# Line 13  from wxPython.wx import wxPoint, wxColou Line 13  from wxPython.wx import wxPoint, wxColou
13    
14  from wxproj import draw_polygon_shape  from wxproj import draw_polygon_shape
15    
16    from Thuban import _
17    
18  from Thuban.Model.layer import SHAPETYPE_POLYGON, SHAPETYPE_ARC, \  from Thuban.Model.layer import SHAPETYPE_POLYGON, SHAPETYPE_ARC, \
19       SHAPETYPE_POINT       SHAPETYPE_POINT
20  from Thuban.Model.label import ALIGN_CENTER, ALIGN_TOP, ALIGN_BOTTOM, \  from Thuban.Model.label import ALIGN_CENTER, ALIGN_TOP, ALIGN_BOTTOM, \
# Line 63  class MapRenderer: Line 65  class MapRenderer:
65          scale = self.scale          scale = self.scale
66          offx, offy = self.offset          offx, offy = self.offset
67    
         fill = layer.fill  
         if fill is None:  
             brush = wxTRANSPARENT_BRUSH  
         else:  
             color = wxColour(fill.red * 255,  
                              fill.green * 255,  
                              fill.blue * 255)  
             brush = wxBrush(color, wxSOLID)  
         stroke = layer.stroke  
         stroke_width = layer.stroke_width  
         if stroke is None:  
             pen = wxTRANSPARENT_PEN  
         else:  
             color = wxColour(stroke.red * 255,  
                              stroke.green * 255,  
                              stroke.blue * 255)  
             pen = wxPen(color, stroke_width, wxSOLID)  
   
68          map_proj = self.map.projection          map_proj = self.map.projection
69          layer_proj = layer.projection          layer_proj = layer.projection
70    
71          shapetype = layer.ShapeType()          shapetype = layer.ShapeType()
72    
73          if shapetype == SHAPETYPE_POLYGON:          brush = wxTRANSPARENT_BRUSH
74              for i in self.layer_ids(layer):          pen   = wxTRANSPARENT_PEN
75    
76            old_prop = None
77            for i in self.layer_ids(layer):
78                value = None
79                shape = layer.Shape(i)
80                field = layer.classification.field
81    
82                if field is not None:
83                    record = layer.table.read_record(i)
84                    if record is not None:
85                        value = record[field]
86    
87                #
88                # if the above statements fail 'value' should
89                # be null, at which point this call will
90                # at least retreive the NullData
91                #
92                prop = layer.classification.getProperties(value)
93    
94                if prop != old_prop:
95                    old_prop = prop
96    
97                    if shapetype == SHAPETYPE_ARC:
98                        fill = None
99                    else:
100                        fill = prop['fill']
101        
102                    if fill is None:
103                        brush = wxTRANSPARENT_BRUSH
104                    else:
105                        color = wxColour(fill.red * 255,
106                                         fill.green * 255,
107                                         fill.blue * 255)
108                        brush = wxBrush(color, wxSOLID)
109        
110                    stroke = prop['stroke']
111                    stroke_width = prop['stroke_width']
112                    if stroke is None:
113                        pen = wxTRANSPARENT_PEN
114                    else:
115                        color = wxColour(stroke.red * 255,
116                                         stroke.green * 255,
117                                         stroke.blue * 255)
118                        pen = wxPen(color, stroke_width, wxSOLID)
119        
120                if shapetype == SHAPETYPE_POINT:
121                    self.dc.SetBrush(brush)
122                    self.dc.SetPen(pen)
123                    self.draw_point_shape(layer, i)
124                else:
125                  self.draw_polygon_shape(layer, i, pen, brush)                  self.draw_polygon_shape(layer, i, pen, brush)
         elif shapetype == SHAPETYPE_ARC:  
             for i in self.layer_ids(layer):  
                 self.draw_polygon_shape(layer, i, pen, None)  
         else:  
             self.dc.SetBrush(brush)  
             self.dc.SetPen(pen)  
             if shapetype == SHAPETYPE_ARC:  
                 f = self.draw_arc_shape  
             elif shapetype == SHAPETYPE_POINT:  
                 f = self.draw_point_shape  
             for i in self.layer_ids(layer):  
                 f(layer, i)  
126    
127      def layer_ids(self, layer):      def layer_ids(self, layer):
128          """Return the shape ids of the given layer that have to be drawn.          """Return the shape ids of the given layer that have to be drawn.
# Line 224  class ScreenRenderer(MapRenderer): Line 246  class ScreenRenderer(MapRenderer):
246                  if shapetype == SHAPETYPE_POINT:                  if shapetype == SHAPETYPE_POINT:
247                      self.draw_point_shape(layer, index)                      self.draw_point_shape(layer, index)
248                  else:                  else:
249                      raise TypeError("Unhandled shape type %s" % shapetype)                      raise TypeError(_("Unhandled shape type %s") % shapetype)
250    
251      def layer_ids(self, layer):      def layer_ids(self, layer):
252          """Return the shapeids covered by the region that has to be redrawn          """Return the shapeids covered by the region that has to be redrawn
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