/[thuban]/branches/WIP-pyshapelib-bramz/Thuban/UI/renderer.py
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revision 362 by jonathan, Mon Jan 27 11:39:03 2003 UTC revision 442 by jonathan, Thu Feb 27 15:55:25 2003 UTC
# Line 1  Line 1 
1  # Copyright (c) 2001, 2002 by Intevation GmbH  # Copyright (c) 2001, 2002, 2003 by Intevation GmbH
2  # Authors:  # Authors:
3  # Bernhard Herzog <[email protected]>  # Bernhard Herzog <[email protected]>
4    # Jonathan Coles <[email protected]>
5  #  #
6  # This program is free software under the GPL (>=v2)  # This program is free software under the GPL (>=v2)
7  # Read the file COPYING coming with Thuban for details.  # Read the file COPYING coming with Thuban for details.
8    
9  __version__ = "$Revision$"  __version__ = "$Revision$"
10    
11  from wxPython.wx import wxPoint, wxColour, wxPen, wxBrush, wxFont, \  from wxPython.wx import wxPoint, wxPen, wxBrush, wxFont, \
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
16    
17    from Thuban import _
18    from Thuban.UI.common import *
19    
20  from Thuban.Model.layer import SHAPETYPE_POLYGON, SHAPETYPE_ARC, \  from Thuban.Model.layer import SHAPETYPE_POLYGON, SHAPETYPE_ARC, \
21       SHAPETYPE_POINT       SHAPETYPE_POINT
22  from Thuban.Model.label import ALIGN_CENTER, ALIGN_TOP, ALIGN_BOTTOM, \  from Thuban.Model.label import ALIGN_CENTER, ALIGN_TOP, ALIGN_BOTTOM, \
23       ALIGN_LEFT, ALIGN_RIGHT, ALIGN_BASELINE       ALIGN_LEFT, ALIGN_RIGHT, ALIGN_BASELINE
24    
25    from Thuban.Model.classification import Classification
26    from Thuban.Model.color import Color
27    
28    
29  class MapRenderer:  class MapRenderer:
30    
# Line 74  class MapRenderer: Line 81  class MapRenderer:
81          old_prop = None          old_prop = None
82          for i in self.layer_ids(layer):          for i in self.layer_ids(layer):
83              value = None              value = None
84              shape = layer.Shape(i)              lc = layer.GetClassification()
85              field = layer.classification.field              field = lc.field
86    
87              if field is not None:              if field is not None:
88                  record = layer.table.read_record(i)                  record = layer.table.read_record(i)
# Line 87  class MapRenderer: Line 94  class MapRenderer:
94              # be null, at which point this call will              # be null, at which point this call will
95              # at least retreive the NullData              # at least retreive the NullData
96              #              #
97              prop = layer.classification.getProperties(value)              prop = lc.GetProperties(value)
98    
99              if prop != old_prop:              # don't recreate new objects if they are the same as before
100                if prop != old_prop:
101                  old_prop = prop                  old_prop = prop
102    
103                  if shapetype == SHAPETYPE_ARC:                  if shapetype == SHAPETYPE_ARC:
104                      fill = None                      fill = Color.None
105                  else:                  else:
106                      fill = prop['fill']                      fill = prop.GetFill()
107            
108                  if fill is None:                  if fill is Color.None:
109                      brush = wxTRANSPARENT_BRUSH                      brush = wxTRANSPARENT_BRUSH
110                  else:                  else:
111                      color = wxColour(fill.red * 255,                      color = Color2wxColour(fill)
                                      fill.green * 255,  
                                      fill.blue * 255)  
112                      brush = wxBrush(color, wxSOLID)                      brush = wxBrush(color, wxSOLID)
113            
114                  stroke = prop['stroke']                  stroke = prop.GetStroke()
115                  stroke_width = prop['stroke_width']                  stroke_width = prop.GetStrokeWidth()
116                  if stroke is None:                  if stroke is Color.None:
117                      pen = wxTRANSPARENT_PEN                      pen = wxTRANSPARENT_PEN
118                  else:                  else:
119                      color = wxColour(stroke.red * 255,                      color = Color2wxColour(stroke)
                                      stroke.green * 255,  
                                      stroke.blue * 255)  
120                      pen = wxPen(color, stroke_width, wxSOLID)                      pen = wxPen(color, stroke_width, wxSOLID)
121            
122              if shapetype == SHAPETYPE_POINT:              if shapetype == SHAPETYPE_POINT:
# Line 244  class ScreenRenderer(MapRenderer): Line 248  class ScreenRenderer(MapRenderer):
248                  if shapetype == SHAPETYPE_POINT:                  if shapetype == SHAPETYPE_POINT:
249                      self.draw_point_shape(layer, index)                      self.draw_point_shape(layer, index)
250                  else:                  else:
251                      raise TypeError("Unhandled shape type %s" % shapetype)                      raise TypeError(_("Unhandled shape type %s") % shapetype)
252    
253      def layer_ids(self, layer):      def layer_ids(self, layer):
254          """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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