/[thuban]/branches/WIP-pyshapelib-bramz/Thuban/UI/renderer.py
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revision 574 by jonathan, Fri Mar 28 17:07:26 2003 UTC revision 676 by jonathan, Tue Apr 15 19:20:40 2003 UTC
# Line 12  from wxPython.wx import wxPoint, wxPen, Line 12  from wxPython.wx import wxPoint, wxPen,
12       wxTRANSPARENT_PEN, wxTRANSPARENT_BRUSH, \       wxTRANSPARENT_PEN, wxTRANSPARENT_BRUSH, \
13       wxBLACK, wxSOLID, wxCROSS_HATCH, wxSWISS, wxNORMAL       wxBLACK, wxSOLID, wxCROSS_HATCH, wxSWISS, wxNORMAL
14    
15  from wxproj import draw_polygon_shape  from wxproj import draw_polygon_shape, draw_polygon_init
16    
17  from Thuban import _  from Thuban import _
18  from Thuban.UI.common import *  from Thuban.UI.common import *
# Line 25  from Thuban.Model.label import ALIGN_CEN Line 25  from Thuban.Model.label import ALIGN_CEN
25  from Thuban.Model.classification import Classification  from Thuban.Model.classification import Classification
26  from Thuban.Model.color import Color  from Thuban.Model.color import Color
27    
28    import time
29    
30    
31  class MapRenderer:  class MapRenderer:
32    
# Line 49  class MapRenderer: Line 51  class MapRenderer:
51          """          """
52          # resolution in pixel/inch          # resolution in pixel/inch
53    
54          assert(scale > 0)          assert scale > 0
55    
56          self.dc = dc          self.dc = dc
57          self.scale = scale          self.scale = scale
# Line 85  class MapRenderer: Line 87  class MapRenderer:
87          lc = layer.GetClassification()          lc = layer.GetClassification()
88          field = lc.GetField()          field = lc.GetField()
89    
90          defaultProps = lc.GetDefaultGroup().GetProperties()          #print "drawing layer: ", layer.Title(),
91            #start = time.clock()
92            #count = 0
93    
94            if shapetype != SHAPETYPE_POINT:
95                offx, offy = self.offset        
96                draw_polygon_init(layer.shapefile.cobject(),
97                                  self.dc,
98                                  self.map.projection, layer.projection,
99                                  self.scale, -self.scale, offx, offy)
100    
101          for i in self.layer_ids(layer):          for i in self.layer_ids(layer):
102              value = None              value = None
# Line 103  class MapRenderer: Line 114  class MapRenderer:
114                  # be null, at which point this call will                  # be null, at which point this call will
115                  # at least retreive the NullData                  # at least retreive the NullData
116                  #                  #
117                  prop = lc.GetProperties(value)  
118                    group = lc.FindGroup(value)
119    
120                    #prop = lc.GetProperties(value)
121              else:              else:
122                  prop = defaultProps                  group = lc.GetDefaultGroup()
123    
124    
125                if not group.IsVisible():
126                    continue
127    
128                prop = group.GetProperties()
129    
130              # don't recreate new objects if they are the same as before              # don't recreate new objects if they are the same as before
131              if prop != old_prop:              if prop != old_prop:
132                  old_prop = prop                  old_prop = prop
133    
134                  if shapetype == SHAPETYPE_ARC:                  if shapetype == SHAPETYPE_ARC:
135                      fill = Color.None                      fill = Color.Transparent
136                  else:                  else:
137                      fill = prop.GetFill()                      fill = prop.GetFill()
138    
139            
140                  if fill is Color.None:                  if fill is Color.Transparent:
141                      brush = wxTRANSPARENT_BRUSH                      brush = wxTRANSPARENT_BRUSH
142                  else:                  else:
143                      color = Color2wxColour(fill)                      color = Color2wxColour(fill)
# Line 124  class MapRenderer: Line 145  class MapRenderer:
145            
146                  stroke = prop.GetLineColor()                  stroke = prop.GetLineColor()
147                  stroke_width = prop.GetLineWidth()                  stroke_width = prop.GetLineWidth()
148                  if stroke is Color.None:                  if stroke is Color.Transparent:
149                      pen = wxTRANSPARENT_PEN                      pen = wxTRANSPARENT_PEN
150                  else:                  else:
151                      color = Color2wxColour(stroke)                      color = Color2wxColour(stroke)
152                      pen = wxPen(color, stroke_width, wxSOLID)                      pen = wxPen(color, stroke_width, wxSOLID)
153        
             if shapetype == SHAPETYPE_POINT:  
154                  self.dc.SetBrush(brush)                  self.dc.SetBrush(brush)
155                  self.dc.SetPen(pen)                  self.dc.SetPen(pen)
156        
157                if shapetype == SHAPETYPE_POINT:
158                  self.draw_point_shape(layer, i)                  self.draw_point_shape(layer, i)
159              else:              else:
160                  self.draw_polygon_shape(layer, i, pen, brush)                  self.draw_polygon_shape(layer, i, pen, brush)
161    
162                #count += 1
163    
164            #end = time.clock()
165            #print (end-start), "seconds -- ", count
166    
167    
168      def layer_ids(self, layer):      def layer_ids(self, layer):
169          """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.
170                    
# Line 146  class MapRenderer: Line 174  class MapRenderer:
174          return range(layer.NumShapes())          return range(layer.NumShapes())
175    
176      def draw_polygon_shape(self, layer, index, pen, brush):      def draw_polygon_shape(self, layer, index, pen, brush):
177          offx, offy = self.offset                  draw_polygon_shape(index, pen, brush)
         draw_polygon_shape(layer.shapefile.cobject(), index,  
                            self.dc, pen, brush,  
                            self.map.projection, layer.projection,  
                            self.scale, -self.scale, offx, offy)  
178    
179      def projected_points(self, layer, index):      def projected_points(self, layer, index):
180          proj = self.map.projection          proj = self.map.projection
# Line 181  class MapRenderer: Line 205  class MapRenderer:
205          self.dc.DrawLines(points)          self.dc.DrawLines(points)
206    
207      def draw_point_shape(self, layer, index):      def draw_point_shape(self, layer, index):
208          p = self.projected_points(layer, index)[0]          pp = self.projected_points(layer, index)
209    
210            if len(pp) == 0: return # ignore Null Shapes which have no points
211    
212            p = pp[0]
213          radius = self.resolution * 5          radius = self.resolution * 5
214          self.dc.DrawEllipse(p.x - radius, p.y - radius, 2*radius, 2*radius)          self.dc.DrawEllipse(p.x - radius, p.y - radius, 2*radius, 2*radius)
215    
Legend:
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