/[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 394 by jonathan, Mon Feb 10 15:27:13 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, \
21       ALIGN_LEFT, ALIGN_RIGHT, ALIGN_BASELINE       ALIGN_LEFT, ALIGN_RIGHT, ALIGN_BASELINE
22    
23    from Thuban.Model.classification import Classification
24    
25    
26  class MapRenderer:  class MapRenderer:
27    
# Line 63  class MapRenderer: Line 67  class MapRenderer:
67          scale = self.scale          scale = self.scale
68          offx, offy = self.offset          offx, offy = self.offset
69    
         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)  
   
70          map_proj = self.map.projection          map_proj = self.map.projection
71          layer_proj = layer.projection          layer_proj = layer.projection
72    
73          shapetype = layer.ShapeType()          shapetype = layer.ShapeType()
74    
75          if shapetype == SHAPETYPE_POLYGON:          brush = wxTRANSPARENT_BRUSH
76              for i in self.layer_ids(layer):          pen   = wxTRANSPARENT_PEN
77    
78            old_prop = None
79            for i in self.layer_ids(layer):
80                value = None
81                shape = layer.Shape(i)
82                lc = layer.classification
83                field = lc.field
84    
85                if field is not None:
86                    record = layer.table.read_record(i)
87                    if record is not None:
88                        value = record[field]
89    
90                #
91                # if the above statements fail 'value' should
92                # be null, at which point this call will
93                # at least retreive the NullData
94                #
95                prop = lc.GetProperties(value)
96    
97                if prop != old_prop:
98                    old_prop = prop
99    
100                    if shapetype == SHAPETYPE_ARC:
101                        fill = None
102                    else:
103                        fill = prop.GetFill()
104        
105                    if fill is None:
106                        brush = wxTRANSPARENT_BRUSH
107                    else:
108                        color = wxColour(fill.red * 255,
109                                         fill.green * 255,
110                                         fill.blue * 255)
111                        brush = wxBrush(color, wxSOLID)
112        
113                    stroke = prop.GetStroke()
114                    stroke_width = prop.GetStrokeWidth()
115                    if stroke is None:
116                        pen = wxTRANSPARENT_PEN
117                    else:
118                        color = wxColour(stroke.red * 255,
119                                         stroke.green * 255,
120                                         stroke.blue * 255)
121                        pen = wxPen(color, stroke_width, wxSOLID)
122        
123                if shapetype == SHAPETYPE_POINT:
124                    self.dc.SetBrush(brush)
125                    self.dc.SetPen(pen)
126                    self.draw_point_shape(layer, i)
127                else:
128                  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)  
129    
130      def layer_ids(self, layer):      def layer_ids(self, layer):
131          """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 249  class ScreenRenderer(MapRenderer):
249                  if shapetype == SHAPETYPE_POINT:                  if shapetype == SHAPETYPE_POINT:
250                      self.draw_point_shape(layer, index)                      self.draw_point_shape(layer, index)
251                  else:                  else:
252                      raise TypeError("Unhandled shape type %s" % shapetype)                      raise TypeError(_("Unhandled shape type %s") % shapetype)
253    
254      def layer_ids(self, layer):      def layer_ids(self, layer):
255          """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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