/[thuban]/branches/WIP-pyshapelib-bramz/Thuban/UI/classifier.py
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revision 570 by jonathan, Fri Mar 28 17:06:26 2003 UTC revision 2688 by frank, Fri Jun 30 12:27:20 2006 UTC
# Line 1  Line 1 
1  # Copyright (c) 2001, 2003 by Intevation GmbH  # Copyright (c) 2003-2005 by Intevation GmbH
2  # Authors:  # Authors:
3  # Jonathan Coles <[email protected]>  # Jan-Oliver Wagner <[email protected]> (2003-2004)
4    # Martin Schulze <[email protected]> (2004)
5    # Frank Koormann <[email protected]> (2003, 2006)
6    # Bernhard Herzog <[email protected]> (2003)
7    # Jonathan Coles <[email protected]> (2003)
8  #  #
9  # This program is free software under the GPL (>=v2)  # This program is free software under the GPL (>=v2)
10  # Read the file COPYING coming with Thuban for details.  # Read the file COPYING coming with Thuban for details.
# Line 8  Line 12 
12  """Dialog for classifying how layers are displayed"""  """Dialog for classifying how layers are displayed"""
13    
14  __version__ = "$Revision$"  __version__ = "$Revision$"
15    # $Source$
16    # $Id$
17    
18  import copy  import copy
19    import re
20    
21  from Thuban.Model.table import FIELDTYPE_INT, FIELDTYPE_DOUBLE, \  from Thuban.Model.table import FIELDTYPE_INT, FIELDTYPE_DOUBLE, \
22       FIELDTYPE_STRING       FIELDTYPE_STRING
# Line 18  from wxPython.wx import * Line 25  from wxPython.wx import *
25  from wxPython.grid import *  from wxPython.grid import *
26    
27  from Thuban import _  from Thuban import _
28  from Thuban.common import *  from Thuban.UI.common import Color2wxColour, wxColour2Color
 from Thuban.UI.common import *  
29    
30  from Thuban.Model.classification import *  from Thuban.Model.messages import MAP_LAYERS_REMOVED, LAYER_SHAPESTORE_REPLACED
31    from Thuban.Model.range import Range
32    from Thuban.Model.classification import \
33        Classification, ClassGroupDefault, \
34        ClassGroupSingleton, ClassGroupPattern, ClassGroupRange, ClassGroupMap, \
35        ClassGroupProperties
36    
37  from Thuban.Model.color import Color  from Thuban.Model.color import Transparent
38    
39  from Thuban.Model.layer import Layer, SHAPETYPE_ARC, SHAPETYPE_POLYGON, SHAPETYPE_POINT  from Thuban.Model.layer import Layer
40    from Thuban.Model.data import SHAPETYPE_ARC, SHAPETYPE_POLYGON, SHAPETYPE_POINT
41    
42  from dialogs import NonModalDialog  from Thuban.UI.classgen import ClassGenDialog
43    from Thuban.UI.colordialog import ColorDialog
44    
45  # widget id's  from Thuban.UI.layerproperties import LayerProperties
46  ID_PROPERTY_SELECT = 4010  from messages import MAP_REPLACED
 ID_CLASS_TABLE = 40011  
47    
 ID_CLASSIFY_OK = 4001  
 ID_CLASSIFY_CANCEL = 4002  
 ID_CLASSIFY_ADD = 4003  
 ID_CLASSIFY_GENRANGE = 4004  
 ID_CLASSIFY_REMOVE = 4005  
 ID_CLASSIFY_MOVEUP = 4006  
 ID_CLASSIFY_MOVEDOWN = 4007  
 ID_CLASSIFY_APPLY = 4008  
48    
49  # table columns  # table columns
50  COL_SYMBOL = 0  COL_VISIBLE = 0
51  COL_VALUE  = 1  COL_SYMBOL  = 1
52  COL_LABEL  = 2  COL_VALUE   = 2
53    COL_LABEL   = 3
54    NUM_COLS    = 4
55    
56  # indices into the client data lists in Classifier.fields  # indices into the client data lists in Classifier.fields
57  FIELD_CLASS = 0  FIELD_CLASS = 0
# Line 60  import weakref Line 66  import weakref
66  class ClassGrid(wxGrid):  class ClassGrid(wxGrid):
67    
68    
69      def __init__(self, parent):      def __init__(self, parent, classifier):
70          """Constructor.          """Constructor.
71    
72          parent -- the parent window          parent -- the parent window
# Line 68  class ClassGrid(wxGrid): Line 74  class ClassGrid(wxGrid):
74          clazz -- the working classification that this grid should          clazz -- the working classification that this grid should
75                   use for display.                   use for display.
76          """          """
77            wxGrid.__init__(self, parent, -1, style = 0)
78    
79          #wxGrid.__init__(self, parent, ID_CLASS_TABLE, size = (340, 160))          self.classifier = classifier
         wxGrid.__init__(self, parent, ID_CLASS_TABLE)  
         #self.SetTable(ClassTable(fieldData, layer.ShapeType(), self), True)  
80    
81          self.currentSelection = []          self.currentSelection = []
82    
83          EVT_GRID_CELL_LEFT_DCLICK(self, self._OnCellDClick)          EVT_GRID_CELL_LEFT_DCLICK(self, self._OnCellDClick)
84          EVT_GRID_RANGE_SELECT(self, self._OnSelectedRange)          EVT_GRID_RANGE_SELECT(self, self._OnSelectedRange)
85          EVT_GRID_SELECT_CELL(self, self._OnSelectedCell)          EVT_GRID_SELECT_CELL(self, self._OnSelectedCell)
86            EVT_GRID_COL_SIZE(self, self._OnCellResize)
87            EVT_GRID_ROW_SIZE(self, self._OnCellResize)
88            EVT_GRID_LABEL_RIGHT_CLICK(self, self._OnLabelRightClicked)
89    
         print "123123123: ", ('Show' in dir(self))  
90    
91      def Show(self):      #def GetCellAttr(self, row, col):
92          print "SHOW!"          #print "GetCellAttr ", row, col
93            #wxGrid.GetCellAttr(self, row, col)
94    
95      def Refresh(self):      def CreateTable(self, clazz, fieldType, shapeType, group = None):
         self.Show()  
     def Update(self):  
         self.Show()  
96    
97      def CreateTable(self, clazz, shapeType, group = None):          assert isinstance(clazz, Classification)
98    
         assert(isinstance(clazz, Classification))  
   
         self.shapeType = shapeType  
99          table = self.GetTable()          table = self.GetTable()
100          if table is None:          if table is None:
101              w = self.GetDefaultColSize() * 3 + self.GetDefaultRowLabelSize()              w = self.GetDefaultColSize() * NUM_COLS \
102              h = self.GetDefaultRowSize() * 4 + self.GetDefaultColLabelSize()                  + self.GetDefaultRowLabelSize()
103                h = self.GetDefaultRowSize() * 4 \
104                    + self.GetDefaultColLabelSize()
105    
106              self.SetDimensions(-1, -1, w, h)              self.SetDimensions(-1, -1, w, h)
107              self.SetSizeHints(w, h, -1, -1)              self.SetSizeHints(w, h, -1, -1)
108              table = ClassTable(self)              table = ClassTable(self)
# Line 107  class ClassGrid(wxGrid): Line 112  class ClassGrid(wxGrid):
112          self.SetSelectionMode(wxGrid.wxGridSelectRows)          self.SetSelectionMode(wxGrid.wxGridSelectRows)
113          self.ClearSelection()          self.ClearSelection()
114    
115          print "8------------------"          table.Reset(clazz, fieldType, shapeType, group)
         table.Reset(clazz, self.shapeType, group)  
         print "9------------------"  
   
 #   def Show(self, show = True):  
 #       print "SHOW!"  
 #       wxGrid.Show(self, show)  
   
 #       sel = self.GetCurrentSelection()  
   
 #       print "( 1"  
 #       if len(sel) == 1:  
 #           print "( 2"  
 #           self.MakeCellVisible(sel[0], 0)  
116    
117      def GetCurrentSelection(self):      def GetCurrentSelection(self):
118          """Return the currently highlighted rows as an increasing list          """Return the currently highlighted rows as an increasing list
119             of row numbers."""             of row numbers."""
         print "@@ ", self.currentSelection  
120          sel = copy.copy(self.currentSelection)          sel = copy.copy(self.currentSelection)
121          sel.sort()          sel.sort()
122          return sel          return sel
# Line 133  class ClassGrid(wxGrid): Line 124  class ClassGrid(wxGrid):
124      def GetSelectedRows(self):      def GetSelectedRows(self):
125          return self.GetCurrentSelection()          return self.GetCurrentSelection()
126    
127      def SetCellRenderer(self, row, col):      #def SetCellRenderer(self, row, col, renderer):
128          raise ValueError(_("Must not allow setting of renderer in ClassGrid!"))          #raise ValueError(_("Must not allow setting of renderer in ClassGrid!"))
129    
130      #      #
131      # [Set|Get]Table is taken from http://wiki.wxpython.org      # [Set|Get]Table is taken from http://wiki.wxpython.org
# Line 170  class ClassGrid(wxGrid): Line 161  class ClassGrid(wxGrid):
161              group = self.GetTable().GetClassGroup(sel[0])              group = self.GetTable().GetClassGroup(sel[0])
162              if isinstance(group, ClassGroupDefault):              if isinstance(group, ClassGroupDefault):
163                  wxMessageDialog(self,                  wxMessageDialog(self,
164                                  "The Default group cannot be removed.",                                  _("The Default group cannot be removed."),
165                                  style = wxOK | wxICON_EXCLAMATION).ShowModal()                                  style = wxOK | wxICON_EXCLAMATION).ShowModal()
166                  return                  return
167                    
# Line 203  class ClassGrid(wxGrid): Line 194  class ClassGrid(wxGrid):
194      def SelectGroup(self, group, makeVisible = True):      def SelectGroup(self, group, makeVisible = True):
195          if group is None: return          if group is None: return
196    
197          assert(isinstance(group, ClassGroup))          assert isinstance(group, ClassGroup)
198    
199          table = self.GetTable()          table = self.GetTable()
200    
201          assert(table is not None)          assert table is not None
   
202    
         print "-- ", group  
203          for i in range(table.GetNumberRows()):          for i in range(table.GetNumberRows()):
204              g = table.GetClassGroup(i)              g = table.GetClassGroup(i)
             print "1", g  
205              if g is group:              if g is group:
                 print "2"  
206                  self.SelectRow(i)                  self.SelectRow(i)
207                  if makeVisible:                  if makeVisible:
                     print "3"  
208                      self.MakeCellVisible(i, 0)                      self.MakeCellVisible(i, 0)
209                  break                  break
210    
           
   
211  #  #
212  # XXX: This isn't working, and there is no way to deselect rows wxPython!  # XXX: This isn't working, and there is no way to deselect rows wxPython!
213  #  #
# Line 236  class ClassGrid(wxGrid): Line 220  class ClassGrid(wxGrid):
220  #                                  sel = False))  #                                  sel = False))
221    
222      def _OnCellDClick(self, event):      def _OnCellDClick(self, event):
223          """Handle a double on a cell."""          """Handle a double click on a cell."""
224    
225          r = event.GetRow()          r = event.GetRow()
226          c = event.GetCol()          c = event.GetCol()
         if c == COL_SYMBOL:  
             prop = self.GetTable().GetValueAsCustom(r, c, None)  
             #prop = group.GetProperties()  
227    
228              # get a new ClassGroupProperties object and copy the          if c == COL_SYMBOL:
229              # values over to our current object              self.classifier.EditSymbol(r)
230              propDlg = SelectPropertiesDialog(NULL, prop, self.shapeType)          else:
231              if propDlg.ShowModal() == wxID_OK:              event.Skip()
                 new_prop = propDlg.GetClassGroupProperties()  
                 #prop.SetProperties(new_prop)  
                 self.GetTable().SetValueAsCustom(r, c, None, new_prop)  
             propDlg.Destroy()  
232    
233      #      #
234      # _OnSelectedRange() and _OnSelectedCell() were borrowed      # _OnSelectedRange() and _OnSelectedCell() were borrowed
# Line 263  class ClassGrid(wxGrid): Line 240  class ClassGrid(wxGrid):
240          if event.Selecting():          if event.Selecting():
241              for index in range( event.GetTopRow(), event.GetBottomRow()+1):              for index in range( event.GetTopRow(), event.GetBottomRow()+1):
242                  if index not in self.currentSelection:                  if index not in self.currentSelection:
                     print "    ", index  
243                      self.currentSelection.append( index )                      self.currentSelection.append( index )
244          else:          else:
245              for index in range( event.GetTopRow(), event.GetBottomRow()+1):              for index in range( event.GetTopRow(), event.GetBottomRow()+1):
246                  while index in self.currentSelection:                  while index in self.currentSelection:
                     print "    ", index  
247                      self.currentSelection.remove( index )                      self.currentSelection.remove( index )
248          #self.ConfigureForSelection()          #self.ConfigureForSelection()
249    
         print self.GetCurrentSelection()  
250          event.Skip()          event.Skip()
251    
252      def _OnSelectedCell( self, event ):      def _OnSelectedCell( self, event ):
253          """Internal update to the selection tracking list"""          """Internal update to the selection tracking list"""
         print "selecting cell: ", event.GetRow()  
254          self.currentSelection = [ event.GetRow() ]          self.currentSelection = [ event.GetRow() ]
255          #self.ConfigureForSelection()          #self.ConfigureForSelection()
256          event.Skip()          event.Skip()
257    
258        def _OnCellResize(self, event):
259            self.FitInside()
260            event.Skip()
261    
262        def _OnLabelRightClicked(self, event):
263            """Process right click on label, raise popup for row labels."""
264            row, col = event.GetRow(), event.GetCol()
265            if col == -1:
266                self.labelPopup(event, row)
267    
268        def labelPopup(self, event, row):
269            """Raise grid label popup."""
270            # check if row label is Pattern or Singleton
271            label = self.GetRowLabelValue(row)
272            if (label == _("Pattern") or label == _("Singleton")):
273                xe,ye = event.GetPosition()
274                x=self.GetRowSize(row)/2
275                menu = wxMenu()
276                patternID = wxNewId()
277                singletonID = wxNewId()
278    
279                def _SetSingleton(event, self=self, row=row):
280                    table = self.GetTable()
281                    group = table.clazz.GetGroup(row - 1)
282                    if not isinstance(group, ClassGroupSingleton):
283                        ngroup = ClassGroupSingleton(
284                                    group.GetPattern(),
285                                    group.GetProperties(),
286                                    group.GetLabel()
287                                    )
288                        table.SetClassGroup(row, ngroup)
289                            
290                def _SetPattern(event, self=self, row=row):
291                    table = self.GetTable()
292                    group = table.clazz.GetGroup(row - 1)
293                    if not isinstance(group, ClassGroupPattern):
294                        try:
295                            re.compile(group.GetValue())
296                        except:
297                            pass
298                        else:
299                            ngroup = ClassGroupPattern(
300                                    group.GetValue(),
301                                    group.GetProperties(),
302                                    group.GetLabel()
303                                    )
304                            table.SetClassGroup(row, ngroup)
305    
306                menu.Append(singletonID, _("Singleton"))
307                EVT_MENU(self, singletonID, _SetSingleton)
308                if self.GetTable().fieldType == FIELDTYPE_STRING:
309                    menu.Append(patternID, _("Pattern"))
310                    EVT_MENU(self, patternID, _SetPattern)
311                self.PopupMenu(menu, wxPoint(x,ye))
312                menu.Destroy()
313    
314  class ClassTable(wxPyGridTableBase):  class ClassTable(wxPyGridTableBase):
315      """Represents the underlying data structure for the grid."""      """Represents the underlying data structure for the grid."""
316    
317      NUM_COLS = 3      __col_labels = [_("Visible"), _("Symbol"), _("Value"), _("Label")]
   
     __col_labels = [_("Symbol"), _("Value"), _("Label")]  
318    
319    
320      def __init__(self, view = None):      def __init__(self, view = None):
     #def __init__(self, clazz, shapeType, view = None):  
321          """Constructor.          """Constructor.
322    
323          shapeType -- the type of shape that the layer uses          shapeType -- the type of shape that the layer uses
# Line 301  class ClassTable(wxPyGridTableBase): Line 327  class ClassTable(wxPyGridTableBase):
327    
328          wxPyGridTableBase.__init__(self)          wxPyGridTableBase.__init__(self)
329    
330          self.SetView(view)          assert len(ClassTable.__col_labels) == NUM_COLS
         self.tdata = []  
331    
332          #self.Reset(clazz, shapeType)          self.clazz = None
333            self.__colAttr = {}
334    
335      def Reset(self, clazz, shapeType, group = None):          self.SetView(view)
336    
337        def Reset(self, clazz, fieldType, shapeType, group = None):
338          """Reset the table with the given data.          """Reset the table with the given data.
339    
340          This is necessary because wxWindows does not allow a grid's          This is necessary because wxWindows does not allow a grid's
# Line 320  class ClassTable(wxPyGridTableBase): Line 348  class ClassTable(wxPyGridTableBase):
348          shapeType -- the type of shape that the layer uses          shapeType -- the type of shape that the layer uses
349          """          """
350    
351          assert(isinstance(clazz, Classification))          assert isinstance(clazz, Classification)
352    
353          self.GetView().BeginBatch()          self.GetView().BeginBatch()
354    
355          self.fieldType = clazz.GetFieldType()          self.fieldType = fieldType
356          self.shapeType = shapeType          self.shapeType = shapeType
357    
358          old_len = len(self.tdata)          self.SetClassification(clazz, group)
359            self.__Modified(-1)
360    
361          self.tdata = []          self.__colAttr = {}
362    
363          print "9------------------"          attr = wxGridCellAttr()
364          #          attr.SetEditor(wxGridCellBoolEditor())
365          # copy the data out of the classification and into our          attr.SetRenderer(wxGridCellBoolRenderer())
366          # array          attr.SetAlignment(wxALIGN_CENTER, wxALIGN_CENTER)
367          #          self.__colAttr[COL_VISIBLE] = attr
         row = -1  
         for g in clazz:  
             ng = copy.deepcopy(g)  
             self.__SetRow(-1, ng)  
             if g is group:  
                 row = self.GetNumberRows() - 1  
                 print "selecting row..."  
368    
369          print "10------------------"          attr = wxGridCellAttr()
370            attr.SetRenderer(ClassRenderer(self.shapeType))
371          self.__Modified(-1)          attr.SetReadOnly()
372            self.__colAttr[COL_SYMBOL] = attr
373    
374          self.__NotifyRowChanges(old_len, len(self.tdata))          self.GetView().EndBatch()
375          print "11------------------"          self.GetView().FitInside()
376    
377        def GetClassification(self):
378            """Return the current classification."""
379            return self.clazz
380    
381        def SetClassification(self, clazz, group = None):
382            """Fill in the table with the given classification.
383            Select the given group if group is not None.
384            """
385    
386            self.GetView().BeginBatch()
387    
388            old_len = self.GetNumberRows()
389    
390            row = -1
391            self.clazz = clazz
392    
393            self.__NotifyRowChanges(old_len, self.GetNumberRows())
394    
395            #
396            # XXX: this is dead code at the moment
397            #
398          if row > -1:          if row > -1:
399              self.GetView().ClearSelection()              self.GetView().ClearSelection()
400              self.GetView().SelectRow(row)              self.GetView().SelectRow(row)
401              self.GetView().MakeCellVisible(row, 0)              self.GetView().MakeCellVisible(row, 0)
402                
403            self.__Modified()
404    
405          self.GetView().EndBatch()          self.GetView().EndBatch()
406            self.GetView().FitInside()
407    
408      def __NotifyRowChanges(self, curRows, newRows):      def __NotifyRowChanges(self, curRows, newRows):
409            """Make sure table updates correctly if the number of
410            rows changes.
411            """
412          #          #
413          # silly message processing for updates to the number of          # silly message processing for updates to the number of
414          # rows and columns          # rows and columns
# Line 372  class ClassTable(wxPyGridTableBase): Line 422  class ClassTable(wxPyGridTableBase):
422          elif newRows < curRows:          elif newRows < curRows:
423              msg = wxGridTableMessage(self,              msg = wxGridTableMessage(self,
424                          wxGRIDTABLE_NOTIFY_ROWS_DELETED,                          wxGRIDTABLE_NOTIFY_ROWS_DELETED,
425                          curRows - newRows,    # position                          curRows,              # position
426                          curRows - newRows)    # how many                          curRows - newRows)    # how many
427              self.GetView().ProcessTableMessage(msg)              self.GetView().ProcessTableMessage(msg)
428              self.GetView().FitInside()              self.GetView().FitInside()
# Line 382  class ClassTable(wxPyGridTableBase): Line 432  class ClassTable(wxPyGridTableBase):
432    
433          The table is considered modified after this operation.          The table is considered modified after this operation.
434    
435          row -- if row is -1 or greater than the current number of rows          row -- if row is < 0 'group' is inserted at the top of the table
436                 then group is appended to the end.                 if row is >= GetNumberRows() or None 'group' is append to
437                        the end of the table.
438                   otherwise 'group' replaces row 'row'
439          """          """
440    
441          # either append or replace          # either append or replace
442          if row == -1 or row >= self.GetNumberRows():          if row is None or row >= self.GetNumberRows():
443              self.tdata.append(group)              self.clazz.AppendGroup(group)
444            elif row < 0:
445                self.clazz.InsertGroup(0, group)
446          else:          else:
447              self.tdata[row] = group              if row == 0:
448                    self.clazz.SetDefaultGroup(group)
449                else:
450                    self.clazz.ReplaceGroup(row - 1, group)
451    
452          self.__Modified()          self.__Modified()
453    
# Line 401  class ClassTable(wxPyGridTableBase): Line 458  class ClassTable(wxPyGridTableBase):
458      def GetRowLabelValue(self, row):      def GetRowLabelValue(self, row):
459          """Return the label for the given row."""          """Return the label for the given row."""
460    
461          group = self.tdata[row]          if row == 0:
462          if isinstance(group, ClassGroupDefault):   return _("Default")              return _("Default")
463          if isinstance(group, ClassGroupSingleton): return _("Singleton")          else:
464          if isinstance(group, ClassGroupRange):     return _("Range")              group = self.clazz.GetGroup(row - 1)
465          if isinstance(group, ClassGroupMap):       return _("Map")              if isinstance(group, ClassGroupDefault):   return _("Default")
466                if isinstance(group, ClassGroupSingleton): return _("Singleton")
467                if isinstance(group, ClassGroupPattern):   return _("Pattern")
468                if isinstance(group, ClassGroupRange):     return _("Range")
469                if isinstance(group, ClassGroupMap):       return _("Map")
470    
471          assert(False) # shouldn't get here          assert False # shouldn't get here
472          return _("")          return ""
473    
474      def GetNumberRows(self):      def GetNumberRows(self):
475          """Return the number of rows."""          """Return the number of rows."""
476          return len(self.tdata)          if self.clazz is None:
477                return 0
478    
479            return self.clazz.GetNumGroups() + 1 # +1 for default group
480    
481      def GetNumberCols(self):      def GetNumberCols(self):
482          """Return the number of columns."""          """Return the number of columns."""
483          return self.NUM_COLS          return NUM_COLS
484    
485      def IsEmptyCell(self, row, col):      def IsEmptyCell(self, row, col):
486          """Determine if a cell is empty. This is always false."""          """Determine if a cell is empty. This is always false."""
# Line 434  class ClassTable(wxPyGridTableBase): Line 498  class ClassTable(wxPyGridTableBase):
498          """          """
499    
500          self.SetValueAsCustom(row, col, None, value)          self.SetValueAsCustom(row, col, None, value)
501          self.__Modified()  
         
502      def GetValueAsCustom(self, row, col, typeName):      def GetValueAsCustom(self, row, col, typeName):
503          """Return the object that is used to represent the given          """Return the object that is used to represent the given
504             cell coordinates. This may not be a string.             cell coordinates. This may not be a string.
505    
506          typeName -- unused, but needed to overload wxPyGridTableBase          typeName -- unused, but needed to overload wxPyGridTableBase
507          """          """
508    
509          group = self.tdata[row]          if row == 0:
510                group = self.clazz.GetDefaultGroup()
511            else:
512                group = self.clazz.GetGroup(row - 1)
513    
514    
515            if col == COL_VISIBLE:
516                return group.IsVisible()
517    
518          if col == COL_SYMBOL:          if col == COL_SYMBOL:
519              return group.GetProperties()              return group.GetProperties()
# Line 452  class ClassTable(wxPyGridTableBase): Line 522  class ClassTable(wxPyGridTableBase):
522              return group.GetLabel()              return group.GetLabel()
523    
524          # col must be COL_VALUE          # col must be COL_VALUE
525          assert(col == COL_VALUE)          assert col == COL_VALUE
526    
527          if isinstance(group, ClassGroupDefault):          if isinstance(group, ClassGroupDefault):
528              return _("DEFAULT")              return _("DEFAULT")
529          elif isinstance(group, ClassGroupSingleton):          elif isinstance(group, ClassGroupSingleton):
530              return group.GetValue()              return group.GetValue()
531            elif isinstance(group, ClassGroupPattern):
532                return group.GetPattern()
533          elif isinstance(group, ClassGroupRange):          elif isinstance(group, ClassGroupRange):
534              return _("%s - %s") % (group.GetMin(), group.GetMax())              return group.GetRange()
535    
536          assert(False) # shouldn't get here          assert False # shouldn't get here
537          return None          return None
538    
539      def __ParseInput(self, value):      def __ParseInput(self, value):
540          """Try to determine what kind of input value is          """Try to determine what kind of input value is
541             (string, number, or range)             (string, number, or range)
542    
543          Returns a tuple of length one if there is a single          Returns a tuple (type, data) where type is 0 if data is
544          value, or of length two if it is a range.          a singleton value, 1 if is a range or 2 if it is a pattern.
545          """          """
546    
547          type = self.fieldType          type = self.fieldType
548    
549          if type == FIELDTYPE_STRING:          if type == FIELDTYPE_STRING:
550              return (value,)              # Approach: if we can compile the value as an expression,
551          elif type == FIELDTYPE_INT or type == FIELDTYPE_DOUBLE:              # make it a pattern, else a singleton.
552                # This is quite crude, however I don't have a better idea:
553                # How to distinct the singleton "Thuban" from the pattern "Thuban"?
554                try:
555                    re.compile(value)
556                except:
557                    return (0, value)
558                else:
559                    return (2, value)
560            elif type in (FIELDTYPE_INT, FIELDTYPE_DOUBLE):
561              if type == FIELDTYPE_INT:              if type == FIELDTYPE_INT:
562                    # the float call allows the user to enter 1.0 for 1
563                  conv = lambda p: int(float(p))                  conv = lambda p: int(float(p))
564              else:              else:
565                  conv = lambda p: p                  conv = float
566    
567              #              #
568              # first try to take the input as a single number              # first try to take the input as a single number
569              # if there's an exception try to break it into              # if there's an exception try to break it into
570              # a range seperated by a '-'. take care to ignore              # a range. if there is an exception here, let it
571              # a leading '-' as that could be for a negative number.              # pass up to the calling function.
             # then try to parse the individual parts. if there  
             # is an exception here, let it pass up to the calling  
             # function.  
572              #              #
573              try:              try:
574                  return (conv(Str2Num(value)),)                  return (0, conv(value))
575              except ValueError:              except ValueError:
576                  i = value.find('-')                  return (1, Range(value))
577                  if i == 0:  
578                      i = value.find('-', 1)          assert False  # shouldn't get here
579            return (0,None)
                 return (conv(Str2Num(value[:i])), conv(Str2Num(value[i+1:])))  
   
         assert(False) # shouldn't get here  
         return (0,)  
               
580    
581      def SetValueAsCustom(self, row, col, typeName, value):      def SetValueAsCustom(self, row, col, typeName, value):
582          """Set the cell specified by 'row' and 'col' to 'value'.          """Set the cell specified by 'row' and 'col' to 'value'.
# Line 517  class ClassTable(wxPyGridTableBase): Line 590  class ClassTable(wxPyGridTableBase):
590          typeName -- unused, but needed to overload wxPyGridTableBase          typeName -- unused, but needed to overload wxPyGridTableBase
591          """          """
592    
593          assert(col >= 0 and col < self.GetNumberCols())          assert 0 <= col < self.GetNumberCols()
594          assert(row >= 0 and row < self.GetNumberRows())          assert 0 <= row < self.GetNumberRows()
595    
596          group = self.tdata[row]          if row == 0:
597                group = self.clazz.GetDefaultGroup()
598            else:
599                group = self.clazz.GetGroup(row - 1)
600    
601          mod = True # assume the data will change          mod = True # assume the data will change
602    
603          if col == COL_SYMBOL:          if col == COL_VISIBLE:
604                group.SetVisible(value)
605            elif col == COL_SYMBOL:
606              group.SetProperties(value)              group.SetProperties(value)
607          elif col == COL_LABEL:          elif col == COL_LABEL:
608              group.SetLabel(value)              group.SetLabel(value)
# Line 552  class ClassTable(wxPyGridTableBase): Line 630  class ClassTable(wxPyGridTableBase):
630                      # changing the underlying group type if the                      # changing the underlying group type if the
631                      # group was a singleton and a range was entered                      # group was a singleton and a range was entered
632                      #                      #
633                      if len(dataInfo) == 1:                      if dataInfo[0] == 0:
634                          if not isinstance(group, ClassGroupSingleton):                          if not isinstance(group, ClassGroupSingleton):
635                              ngroup = ClassGroupSingleton(prop = props)                              ngroup = ClassGroupSingleton(props = props)
636                              changed = True                              changed = True
637                          ngroup.SetValue(dataInfo[0])                          ngroup.SetValue(dataInfo[1])
638                      elif len(dataInfo) == 2:                      elif dataInfo[0] == 1:
639                          if not isinstance(group, ClassGroupRange):                          if not isinstance(group, ClassGroupRange):
640                              ngroup = ClassGroupRange(prop = props)                              ngroup = ClassGroupRange(props = props)
641                                changed = True
642                            ngroup.SetRange(dataInfo[1])
643                        elif dataInfo[0] == 2:
644                            if not isinstance(group, ClassGroupPattern):
645                                ngroup = ClassGroupPattern(props = props)
646                              changed = True                              changed = True
647                          ngroup.SetRange(dataInfo[0], dataInfo[1])                          ngroup.SetPattern(dataInfo[1])
648                      else:                      else:
649                          assert(False)                          assert False
650                          pass                          pass
651    
652                      if changed:                      if changed:
653                          ngroup.SetLabel(group.GetLabel())                          ngroup.SetLabel(group.GetLabel())
654                          self.SetClassGroup(row, ngroup)                          self.SetClassGroup(row, ngroup)
655          else:          else:
656              assert(False) # shouldn't be here              assert False # shouldn't be here
657              pass              pass
658    
659          if mod:          if mod:
# Line 580  class ClassTable(wxPyGridTableBase): Line 663  class ClassTable(wxPyGridTableBase):
663      def GetAttr(self, row, col, someExtraParameter):      def GetAttr(self, row, col, someExtraParameter):
664          """Returns the cell attributes"""          """Returns the cell attributes"""
665    
666          attr = wxGridCellAttr()          return self.__colAttr.get(col, wxGridCellAttr()).Clone()
         #attr = wxPyGridTableBase.GetAttr(self, row, col, someExtraParameter)  
   
         if col == COL_SYMBOL:  
             # we need to create a new renderer each time, because  
             # SetRenderer takes control of the parameter  
             attr.SetRenderer(ClassRenderer(self.shapeType))  
             attr.SetReadOnly()  
   
         return attr  
667    
668      def GetClassGroup(self, row):      def GetClassGroup(self, row):
669          """Return the ClassGroup object representing row 'row'."""          """Return the ClassGroup object representing row 'row'."""
670    
671          return self.tdata[row] # self.GetValueAsCustom(row, COL_SYMBOL, None)          #return self.GetValueAsCustom(row, COL_SYMBOL, None)
672            if row == 0:
673                return self.clazz.GetDefaultGroup()
674            else:
675                return self.clazz.GetGroup(row - 1)
676    
677      def SetClassGroup(self, row, group):      def SetClassGroup(self, row, group):
678            """Set the given row to properties of group."""
679          self.__SetRow(row, group)          self.__SetRow(row, group)
680          self.GetView().Refresh()          self.GetView().Refresh()
681    
# Line 625  class ClassTable(wxPyGridTableBase): Line 704  class ClassTable(wxPyGridTableBase):
704          The table is considered modified if any rows are removed.          The table is considered modified if any rows are removed.
705          """          """
706    
707          assert(pos >= 0)          assert pos >= 0
708          old_len = len(self.tdata)          old_len = self.GetNumberRows()
709          for row in range(pos, pos - numRows, -1):          for row in range(pos, pos - numRows, -1):
710              group = self.GetClassGroup(row)              group = self.GetClassGroup(row)
711              if not isinstance(group, ClassGroupDefault):              if row != 0:
712                  self.tdata.pop(row)                  self.clazz.RemoveGroup(row - 1)
713                  self.__Modified()                  self.__Modified()
714            
715          if self.IsModified():          if self.IsModified():
716              self.__NotifyRowChanges(old_len, len(self.tdata))              self.__NotifyRowChanges(old_len, self.GetNumberRows())
717    
718      def AppendRows(self, numRows = 1):      def AppendRows(self, numRows = 1):
719          """Append 'numRows' empty rows to the end of the table.          """Append 'numRows' empty rows to the end of the table.
# Line 642  class ClassTable(wxPyGridTableBase): Line 721  class ClassTable(wxPyGridTableBase):
721          The table is considered modified if any rows are appended.          The table is considered modified if any rows are appended.
722          """          """
723    
724          old_len = len(self.tdata)          old_len = self.GetNumberRows()
725          for i in range(numRows):          for i in range(numRows):
726              np = ClassGroupSingleton()              np = ClassGroupSingleton()
727              self.__SetRow(-1, np)              self.__SetRow(None, np)
728    
729          if self.IsModified():          if self.IsModified():
730              self.__NotifyRowChanges(old_len, len(self.tdata))              self.__NotifyRowChanges(old_len, self.GetNumberRows())
   
   
 class Classifier(NonModalDialog):  
   
     def __init__(self, parent, name, layer, group = None):  
         NonModalDialog.__init__(self, parent, name,  
                                 _("Classifier: %s") % layer.Title())  
   
         panel = wxPanel(self, -1, size=(100, 100))  
   
         self.layer = layer  
   
         self.originalClass = self.layer.GetClassification()  
         field = self.originalClass.GetField()  
         fieldType = self.originalClass.GetFieldType()  
   
         topBox = wxBoxSizer(wxVERTICAL)  
         panelBox = wxBoxSizer(wxVERTICAL)  
   
         #panelBox.Add(wxStaticText(panel, -1, _("Layer: %s") % layer.Title()),  
             #0, wxALIGN_LEFT | wxALL, 4)  
         panelBox.Add(wxStaticText(panel, -1,  
                                 _("Layer Type: %s") % layer.ShapeType()),  
             0, wxALIGN_LEFT | wxALL, 4)  
   
   
         #  
         # make field combo box  
         #  
         self.fields = wxComboBox(panel, ID_PROPERTY_SELECT, "",  
                                      style = wxCB_READONLY)  
   
         self.num_cols = layer.table.field_count()  
         # just assume the first field in case one hasn't been  
         # specified in the file.  
         self.__cur_field = 0  
   
         self.fields.Append("<None>")  
         self.fields.SetClientData(0, None)  
   
         for i in range(self.num_cols):  
             type, name, len, decc = layer.table.field_info(i)  
             self.fields.Append(name)  
   
             if name == field:  
                 self.__cur_field = i + 1  
                 self.fields.SetClientData(i + 1, self.originalClass)  
             else:  
                 self.fields.SetClientData(i + 1, None)  
   
731    
         ###########  
732    
733          self.fieldTypeText = wxStaticText(panel, -1, "")  ID_PROPERTY_REVERT = 4002
734          panelBox.Add(self.fieldTypeText, 0,  ID_PROPERTY_ADD = 4003
735                       wxGROW | wxALIGN_LEFT | wxALL | wxADJUST_MINSIZE, 4)  ID_PROPERTY_GENCLASS = 4004
736    ID_PROPERTY_REMOVE = 4005
737    ID_PROPERTY_MOVEUP = 4006
738    ID_PROPERTY_MOVEDOWN = 4007
739    ID_PROPERTY_TRY = 4008
740    ID_PROPERTY_EDITSYM = 4009
741    ID_PROPERTY_SELECT = 4011
742    ID_PROPERTY_TITLE = 4012
743    ID_PROPERTY_FIELDTEXT = 4013
744    
745    BTN_ADD = 0
746    BTN_EDIT = 1
747    BTN_GEN = 2
748    BTN_UP = 3
749    BTN_DOWN = 4
750    BTN_RM = 5
751    
752    EB_LAYER_TITLE = 0
753    EB_SELECT_FIELD = 1
754    EB_GEN_CLASS = 2
755    
756          propertyBox = wxBoxSizer(wxHORIZONTAL)  class Classifier(LayerProperties):
         propertyBox.Add(wxStaticText(panel, -1, _("Field: ")),  
             0, wxALIGN_LEFT | wxALL, 4)  
         propertyBox.Add(self.fields, 1, wxGROW|wxALL, 4)  
         EVT_COMBOBOX(self, ID_PROPERTY_SELECT, self._OnFieldSelect)  
   
         panelBox.Add(propertyBox, 0, wxGROW, 4)  
   
   
         #  
         # Control Box  
         #  
         controlBox = wxBoxSizer(wxHORIZONTAL)  
   
   
         ###########  
         #  
         # Control buttons:  
         #  
         self.controlButtons = []  
   
         controlButtonBox = wxBoxSizer(wxVERTICAL)  
   
         button = wxButton(panel, ID_CLASSIFY_ADD, _("Add"))  
         controlButtonBox.Add(button, 0, wxGROW | wxALL, 4)  
         self.controlButtons.append(button)  
757    
758          button = wxButton(panel, ID_CLASSIFY_GENRANGE, _("Generate Ranges"))      type2string = {None:             _("None"),
759          controlButtonBox.Add(button, 0, wxGROW | wxALL, 4)                     FIELDTYPE_STRING: _("Text"),
760          self.controlButtons.append(button)                     FIELDTYPE_INT:    _("Integer"),
761                       FIELDTYPE_DOUBLE: _("Decimal")}
762    
763          button = wxButton(panel, ID_CLASSIFY_MOVEUP, _("Move Up"))      def __init__(self, parent, name, layer, group = None):
764          controlButtonBox.Add(button, 0, wxGROW | wxALL, 4)          """Create a Properties/Classification dialog for a layer.
765          self.controlButtons.append(button)          The layer is part of map. If group is not None, select that
766            group in the classification table.
767            """
768    
769          button = wxButton(panel, ID_CLASSIFY_MOVEDOWN, _("Move Down"))          LayerProperties.__init__(self, parent, name, layer)
         controlButtonBox.Add(button, 0, wxGROW | wxALL, 4)  
         self.controlButtons.append(button)  
770    
771          controlButtonBox.Add(60, 20, 0, wxGROW | wxALL | wxALIGN_BOTTOM, 4)          self.layer.Subscribe(LAYER_SHAPESTORE_REPLACED,
772                                 self.layer_shapestore_replaced)
773    
774          button = wxButton(panel, ID_CLASSIFY_REMOVE, _("Remove"))          self.genDlg = None
775          controlButtonBox.Add(button, 0, wxGROW | wxALL | wxALIGN_BOTTOM, 4)          self.group = group
         self.controlButtons.append(button)  
776    
777            LayerProperties.dialog_layout(self)
778    
779          ###########      def dialog_layout(self, panel, panelBox):
         #  
         # Classification data table  
         #  
   
         self.classGrid = ClassGrid(panel)  
         #self.__SetGridTable(self.__cur_field, group)  
         #self.fields.SetSelection(self.__cur_field)  
780    
781          # calling __SelectField after creating the classGrid fills in the          if self.layer.HasClassification():
         # grid with the correct information  
         print "2------------------"  
         self.__SelectField(self.__cur_field, group = group)  
782    
783          #self.classGrid.SelectGroup(group)              self.fieldTypeText = wxStaticText(panel, -1, "")
784    
785          controlBox.Add(self.classGrid, 1, wxGROW, 0)              self.originalClass = self.layer.GetClassification()
786                self.originalClassField = self.layer.GetClassificationColumn()
787                field = self.originalClassField
788                fieldType = self.layer.GetFieldType(field)
789    
790                table = self.layer.ShapeStore().Table()
791                #
792                # make field choice box
793                #
794                self.fields = wxChoice(panel, ID_PROPERTY_SELECT,)
795    
796                self.num_cols = table.NumColumns()
797                # just assume the first field in case one hasn't been
798                # specified in the file.
799                self.__cur_field = 0
800    
801          controlBox.Add(controlButtonBox, 0, wxGROW, 10)              self.fields.Append("<None>")
         panelBox.Add(controlBox, 1, wxGROW, 10)  
802    
803          EVT_BUTTON(self, ID_CLASSIFY_ADD, self._OnAdd)              if fieldType is None:
804          EVT_BUTTON(self, ID_CLASSIFY_REMOVE, self._OnRemove)                  self.fields.SetClientData(0, copy.deepcopy(self.originalClass))
805          EVT_BUTTON(self, ID_CLASSIFY_GENRANGE, self._OnGenRange)              else:
806          EVT_BUTTON(self, ID_CLASSIFY_MOVEUP, self._OnMoveUp)                  self.fields.SetClientData(0, None)
         EVT_BUTTON(self, ID_CLASSIFY_MOVEDOWN, self._OnMoveDown)  
807    
808          ###########              for i in range(self.num_cols):
809                    name = table.Column(i).name
810                    self.fields.Append(name)
811    
812                    if name == field:
813                        self.__cur_field = i + 1
814                        self.fields.SetClientData(i + 1,
815                                                  copy.deepcopy(self.originalClass))
816                    else:
817                        self.fields.SetClientData(i + 1, None)
818    
819          buttonBox = wxBoxSizer(wxHORIZONTAL)              button_gen = wxButton(panel, ID_PROPERTY_GENCLASS,
820          buttonBox.Add(wxButton(panel, ID_CLASSIFY_OK, _("OK")),                  _("Generate Class"))
821                        0, wxALL, 4)              button_add = wxButton(panel, ID_PROPERTY_ADD,
822          buttonBox.Add(60, 20, 0, wxALL, 4)                  _("Add"))
823          buttonBox.Add(wxButton(panel, ID_CLASSIFY_APPLY, _("Apply")),              button_moveup = wxButton(panel, ID_PROPERTY_MOVEUP,
824                        0, wxALL, 4)                  _("Move Up"))
825          buttonBox.Add(60, 20, 0, wxALL, 4)              button_movedown = wxButton(panel, ID_PROPERTY_MOVEDOWN,
826          buttonBox.Add(wxButton(panel, ID_CLASSIFY_CANCEL, _("Cancel")),                  _("Move Down"))
827                        0, wxALL, 4)              button_edit = wxButton(panel, ID_PROPERTY_EDITSYM,
828          panelBox.Add(buttonBox, 0, wxALIGN_CENTER_HORIZONTAL|wxALIGN_BOTTOM, 0)                  _("Edit Symbol"))
829                button_remove = wxButton(panel, ID_PROPERTY_REMOVE,
830          EVT_BUTTON(self, ID_CLASSIFY_OK, self._OnOK)                  _("Remove"))
831          EVT_BUTTON(self, ID_CLASSIFY_APPLY, self._OnApply)  
832          EVT_BUTTON(self, ID_CLASSIFY_CANCEL, self._OnCancel)              self.classGrid = ClassGrid(panel, self)
833    
834          ###########              # calling __SelectField after creating the classGrid fills in the
835                # grid with the correct information
836                self.fields.SetSelection(self.__cur_field)
837          panel.SetAutoLayout(True)              self.__SelectField(self.__cur_field, group = self.group)
838          panel.SetSizer(panelBox)  
839          panelBox.SetSizeHints(panel)  
840                classBox = wxStaticBoxSizer(
841                            wxStaticBox(panel, -1, _("Classification")), wxVERTICAL)
842    
843    
844                sizer = wxBoxSizer(wxHORIZONTAL)
845                sizer.Add(wxStaticText(panel, ID_PROPERTY_FIELDTEXT, _("Field: ")),
846                    0, wxALIGN_LEFT | wxALIGN_CENTER_VERTICAL | wxALL, 4)
847                sizer.Add(self.fields, 1, wxGROW | wxALL, 4)
848    
849                classBox.Add(sizer, 0, wxGROW, 4)
850    
851                classBox.Add(self.fieldTypeText, 0,
852                            wxGROW | wxALIGN_LEFT | wxALL | wxADJUST_MINSIZE, 4)
853    
854                controlBox = wxBoxSizer(wxHORIZONTAL)
855                controlButtonBox = wxBoxSizer(wxVERTICAL)
856    
857                controlButtonBox.Add(button_gen, 0, wxGROW|wxALL, 4)
858                controlButtonBox.Add(button_add, 0, wxGROW|wxALL, 4)
859                controlButtonBox.Add(button_moveup, 0, wxGROW|wxALL, 4)
860                controlButtonBox.Add(button_movedown, 0, wxGROW|wxALL, 4)
861                controlButtonBox.Add(button_edit, 0, wxGROW|wxALL, 4)
862                controlButtonBox.Add( (60, 20), 0, wxGROW|wxALL|wxALIGN_BOTTOM, 4)
863                controlButtonBox.Add(button_remove, 0,
864                                     wxGROW|wxALL|wxALIGN_BOTTOM, 4)
865    
866                controlBox.Add(self.classGrid, 1, wxGROW, 0)
867                controlBox.Add(controlButtonBox, 0, wxGROW, 10)
868    
869                classBox.Add(controlBox, 1, wxGROW, 10)
870                panelBox.Add(classBox, 1, wxGROW, 0)
871    
872    
873            EVT_CHOICE(self, ID_PROPERTY_SELECT, self._OnFieldSelect)
874            EVT_BUTTON(self, ID_PROPERTY_ADD, self._OnAdd)
875            EVT_BUTTON(self, ID_PROPERTY_EDITSYM, self._OnEditSymbol)
876            EVT_BUTTON(self, ID_PROPERTY_REMOVE, self._OnRemove)
877            EVT_BUTTON(self, ID_PROPERTY_GENCLASS, self._OnGenClass)
878            EVT_BUTTON(self, ID_PROPERTY_MOVEUP, self._OnMoveUp)
879            EVT_BUTTON(self, ID_PROPERTY_MOVEDOWN, self._OnMoveDown)
880    
881        def unsubscribe_messages(self):
882            """Unsubscribe from all messages."""
883            LayerProperties.unsubscribe_messages(self)
884            self.layer.Unsubscribe(LAYER_SHAPESTORE_REPLACED,
885                                   self.layer_shapestore_replaced)
886    
887        def layer_shapestore_replaced(self, *args):
888            """Subscribed to the map's LAYER_SHAPESTORE_REPLACED message.
889            Close self.
890            """
891            self.Close()
892    
893          topBox.Add(panel, 1, wxGROW, 0)      def EditSymbol(self, row):
894          panelBox.SetSizeHints(self)          """Open up a dialog where the user can select the properties
895          self.SetAutoLayout(True)          for a group.
896          self.SetSizer(topBox)          """
897            table = self.classGrid.GetTable()
898            prop = table.GetValueAsCustom(row, COL_SYMBOL, None)
899    
900          print "1------------------"          # get a new ClassGroupProperties object and copy the
901          #self.Fit()          # values over to our current object
902          ######################          propDlg = SelectPropertiesDialog(self, prop, self.layer.ShapeType())
903    
904            self.Enable(False)
905            if propDlg.ShowModal() == wxID_OK:
906                new_prop = propDlg.GetClassGroupProperties()
907                table.SetValueAsCustom(row, COL_SYMBOL, None, new_prop)
908            self.Enable(True)
909            propDlg.Destroy()
910    
911        def _SetClassification(self, clazz):
912            """Called from the ClassGen dialog when a new classification has
913            been created and should be set in the table.
914            """
915            # FIXME: This could be implemented using a message
916    
917          self.haveApplied = False          self.fields.SetClientData(self.__cur_field, clazz)
918            self.classGrid.GetTable().SetClassification(clazz)
919    
920      def __BuildClassification(self, fieldIndex):      def __BuildClassification(self, fieldIndex, copyClass=False, force=False):
921            """Pack the classification setting into a Classification object.
922            Returns (Classification, fieldName) where fieldName is the selected
923            field in the table that the classification should be used with.
924            """
925    
926          numRows = self.classGrid.GetNumberRows()  #       numRows = self.classGrid.GetNumberRows()
927          assert(numRows > 0) # there should always be a default row  #       assert numRows > 0  # there should always be a default row
928    
         clazz = Classification()  
929          if fieldIndex == 0:          if fieldIndex == 0:
930              fieldName = None              fieldName = None
931              fieldType = None              fieldType = None
# Line 829  class Classifier(NonModalDialog): Line 933  class Classifier(NonModalDialog):
933              fieldName = self.fields.GetString(fieldIndex)              fieldName = self.fields.GetString(fieldIndex)
934              fieldType = self.layer.GetFieldType(fieldName)              fieldType = self.layer.GetFieldType(fieldName)
935    
936          clazz.SetField(fieldName)          clazz = self.fields.GetClientData(fieldIndex)
937          clazz.SetFieldType(fieldType)          if clazz is None or self.classGrid.GetTable().IsModified() or force:
938                clazz = self.classGrid.GetTable().GetClassification()
939                if copyClass:
940          table = self.classGrid.GetTable()                  clazz = copy.deepcopy(clazz)
         clazz.SetDefaultGroup(table.GetClassGroup(0))  
   
         for i in range(1, numRows):  
             clazz.AddGroup(table.GetClassGroup(i))  
941    
942          return clazz          return clazz, fieldName
943    
944      def __SetGridTable(self, fieldIndex, group = None):      def __SetGridTable(self, fieldIndex, group = None):
945            """Set the table with the classification associated with the
946            selected field at fieldIndex. Select the specified group
947            if group is not None.
948            """
949    
950          clazz = self.fields.GetClientData(fieldIndex)          clazz = self.fields.GetClientData(fieldIndex)
951    
# Line 852  class Classifier(NonModalDialog): Line 956  class Classifier(NonModalDialog):
956                      self.layer.GetClassification().                      self.layer.GetClassification().
957                                 GetDefaultGroup().GetProperties()))                                 GetDefaultGroup().GetProperties()))
958    
959              fieldName = self.fields.GetString(fieldIndex)          fieldName = self.fields.GetString(fieldIndex)
960              fieldType = self.layer.GetFieldType(fieldName)          fieldType = self.layer.GetFieldType(fieldName)
             clazz.SetFieldType(fieldType)  
961                                    
962          print "6------------------"          self.classGrid.CreateTable(clazz, fieldType,
963          self.classGrid.CreateTable(clazz, self.layer.ShapeType(), group)                                     self.layer.ShapeType(), group)
         print "7------------------"  
   
   
   
     type2string = {None:             _("None"),  
                    FIELDTYPE_STRING: _("Text"),  
                    FIELDTYPE_INT:    _("Integer"),  
                    FIELDTYPE_DOUBLE: _("Decimal")}  
964    
965      def __SetFieldTypeText(self, fieldIndex):      def __SetFieldTypeText(self, fieldIndex):
966            """Set the field type string using the data type of the field
967            at fieldIndex.
968            """
969          fieldName = self.fields.GetString(fieldIndex)          fieldName = self.fields.GetString(fieldIndex)
970          fieldType = self.layer.GetFieldType(fieldName)          fieldType = self.layer.GetFieldType(fieldName)
971    
972          assert(Classifier.type2string.has_key(fieldType))          assert Classifier.type2string.has_key(fieldType)
973    
974          text = Classifier.type2string[fieldType]          text = Classifier.type2string[fieldType]
975    
976          self.fieldTypeText.SetLabel(_("Field Type: %s") % text)          self.fieldTypeText.SetLabel(_("Data Type: %s") % text)
977    
978      def __SelectField(self, newIndex, oldIndex = -1, group = None):      def __SelectField(self, newIndex, oldIndex = -1, group = None):
979            """This method assumes that the current selection for the
980            combo has already been set by a call to SetSelection().
981            """
982    
983          print "3------------------"          assert oldIndex >= -1
   
         assert(oldIndex >= -1)  
   
         self.fields.SetSelection(newIndex)  
984    
985          if oldIndex != -1:          if oldIndex != -1:
986              clazz = self.__BuildClassification(oldIndex)              clazz, name = self.__BuildClassification(oldIndex, force = True)
987              self.fields.SetClientData(oldIndex, clazz)              self.fields.SetClientData(oldIndex, clazz)
988    
         print "4------------------"  
989          self.__SetGridTable(newIndex, group)          self.__SetGridTable(newIndex, group)
         print "5------------------"  
990    
991          enabled = newIndex != 0          self.__EnableButtons(EB_SELECT_FIELD)
   
         for b in self.controlButtons:  
             b.Enable(enabled)  
992    
993          self.__SetFieldTypeText(newIndex)          self.__SetFieldTypeText(newIndex)
994    
995        def __SetTitle(self, title):
996            """Set the title of the dialog."""
997            if title != "":
998                title = ": " + title
999    
1000            self.SetTitle(_("Layer Properties") + title)
1001    
1002        def _OnEditSymbol(self, event):
1003            """Open up a dialog for the user to select group properties."""
1004            sel = self.classGrid.GetCurrentSelection()
1005    
1006            if len(sel) == 1:
1007                self.EditSymbol(sel[0])
1008    
1009      def _OnFieldSelect(self, event):      def _OnFieldSelect(self, event):
1010          index = self.fields.GetSelection()          index = self.fields.GetSelection()
1011          self.__SelectField(index, self.__cur_field)          self.__SelectField(index, self.__cur_field)
1012          self.__cur_field = index          self.__cur_field = index
1013    
1014      def _OnApply(self, event):      def OnTry(self, event):
1015          """Put the data from the table into a new Classification and hand          """Put the data from the table into a new Classification and hand
1016             it to the layer.             it to the layer.
1017          """          """
1018    
1019          clazz = self.fields.GetClientData(self.__cur_field)          if self.layer.HasClassification():
1020                clazz = self.fields.GetClientData(self.__cur_field)
1021    
1022          #              #
1023          # only build the classification if there wasn't one to              # only build the classification if there wasn't one to
1024          # to begin with or it has been modified              # to begin with or it has been modified
1025          #              #
1026          if clazz is None or self.classGrid.GetTable().IsModified():              self.classGrid.SaveEditControlValue()
1027              clazz = self.__BuildClassification(self.__cur_field)              clazz, name = self.__BuildClassification(self.__cur_field, True)
1028    
1029          self.layer.SetClassification(clazz)              self.layer.SetClassificationColumn(name)
1030                self.layer.SetClassification(clazz)
1031    
1032          self.haveApplied = True          self.haveApplied = True
1033    
1034      def _OnOK(self, event):      def OnOK(self, event):
1035          self._OnApply(event)          self.OnTry(event)
1036          self.OnClose(event)          self.Close()
1037    
1038      def _OnCancel(self, event):      def OnRevert(self, event):
1039          """The layer's current classification stays the same."""          """The layer's current classification stays the same."""
1040          if self.haveApplied:          if self.haveApplied and self.layer.HasClassification():
1041                self.layer.SetClassificationColumn(self.originalClassField)
1042              self.layer.SetClassification(self.originalClass)              self.layer.SetClassification(self.originalClass)
1043    
1044          self.OnClose(event)          #self.Close()
1045    
1046      def _OnAdd(self, event):      def _OnAdd(self, event):
1047          self.classGrid.AppendRows()          self.classGrid.AppendRows()
# Line 941  class Classifier(NonModalDialog): Line 1049  class Classifier(NonModalDialog):
1049      def _OnRemove(self, event):      def _OnRemove(self, event):
1050          self.classGrid.DeleteSelectedRows()          self.classGrid.DeleteSelectedRows()
1051    
1052      def _OnGenRange(self, event):      def _OnGenClass(self, event):
1053          print "Classifier._OnGenRange()"          """Open up a dialog for the user to generate classifications."""
1054    
1055            self.genDlg = ClassGenDialog(self, self.layer,
1056                              self.fields.GetString(self.__cur_field))
1057    
1058            EVT_CLOSE(self.genDlg, self._OnGenDialogClose)
1059    
1060            self.__EnableButtons(EB_GEN_CLASS)
1061    
1062            self.genDlg.Show()
1063    
1064        def _OnGenDialogClose(self, event):
1065            """Reenable buttons after the generate classification
1066            dialog is closed.
1067            """
1068            self.genDlg.Destroy()
1069            self.genDlg = None
1070            self.__EnableButtons(EB_GEN_CLASS)
1071    
1072      def _OnMoveUp(self, event):      def _OnMoveUp(self, event):
1073            """When the user clicks MoveUp, try to move a group up one row."""
1074          sel = self.classGrid.GetCurrentSelection()          sel = self.classGrid.GetCurrentSelection()
1075    
         print "sel: ", sel  
   
1076          if len(sel) == 1:          if len(sel) == 1:
1077              i = sel[0]              i = sel[0]
1078              if i > 1:              if i > 1:
# Line 962  class Classifier(NonModalDialog): Line 1086  class Classifier(NonModalDialog):
1086                  self.classGrid.MakeCellVisible(i - 1, 0)                  self.classGrid.MakeCellVisible(i - 1, 0)
1087    
1088      def _OnMoveDown(self, event):      def _OnMoveDown(self, event):
1089            """When the user clicks MoveDown, try to move a group down one row."""
1090          sel = self.classGrid.GetCurrentSelection()          sel = self.classGrid.GetCurrentSelection()
1091    
1092          if len(sel) == 1:          if len(sel) == 1:
# Line 976  class Classifier(NonModalDialog): Line 1101  class Classifier(NonModalDialog):
1101                  self.classGrid.SelectRow(i + 1)                  self.classGrid.SelectRow(i + 1)
1102                  self.classGrid.MakeCellVisible(i + 1, 0)                  self.classGrid.MakeCellVisible(i + 1, 0)
1103    
1104        def _OnTitleChanged(self, event):
1105            """Update the dialog title when the user changed the layer name."""
1106            obj = event.GetEventObject()
1107    
1108            self.layer.SetTitle(obj.GetValue())
1109            self.__SetTitle(self.layer.Title())
1110    
1111            self.__EnableButtons(EB_LAYER_TITLE)
1112    
1113        def __EnableButtons(self, case):
1114            """Helper method that enables/disables the appropriate buttons
1115            based on the case provided. Cases are constants beginning with EB_.
1116            """
1117    
1118  ID_SELPROP_OK = 4001          list = {wxID_OK                 : True,
1119  ID_SELPROP_CANCEL = 4002                  wxID_CANCEL             : True,
1120  ID_SELPROP_SPINCTRL = 4002                  ID_PROPERTY_ADD         : True,
1121                    ID_PROPERTY_MOVEUP      : True,
1122                    ID_PROPERTY_MOVEDOWN    : True,
1123                    ID_PROPERTY_REMOVE      : True,
1124                    ID_PROPERTY_SELECT      : True,
1125                    ID_PROPERTY_FIELDTEXT   : True,
1126                    ID_PROPERTY_GENCLASS    : True,
1127                    ID_PROPERTY_EDITSYM     : True}
1128    
1129            if case == EB_LAYER_TITLE:  
1130                if self.layer.Title() == "":
1131                    list[wxID_OK] = False
1132                    list[wxID_CANCEL] = False
1133    
1134            elif case == EB_SELECT_FIELD:
1135                if self.fields.GetSelection() == 0:
1136                    list[ID_PROPERTY_GENCLASS] = False
1137                    list[ID_PROPERTY_ADD] = False
1138                    list[ID_PROPERTY_MOVEUP] = False
1139                    list[ID_PROPERTY_MOVEDOWN] = False
1140                    list[ID_PROPERTY_REMOVE] = False
1141    
1142            elif case == EB_GEN_CLASS:
1143                if self.genDlg is not None:
1144                    list[ID_PROPERTY_SELECT] = False
1145                    list[ID_PROPERTY_FIELDTEXT] = False
1146                    list[ID_PROPERTY_GENCLASS] = False
1147    
1148            for id, enable in list.items():
1149                win = self.FindWindowById(id)
1150                if win:
1151                    win.Enable(enable)
1152    
1153    ID_SELPROP_SPINCTRL_LINEWIDTH = 4002
1154  ID_SELPROP_PREVIEW = 4003  ID_SELPROP_PREVIEW = 4003
1155  ID_SELPROP_STROKECLR = 4004  ID_SELPROP_STROKECLR = 4004
1156  ID_SELPROP_FILLCLR = 4005  ID_SELPROP_FILLCLR = 4005
1157  ID_SELPROP_STROKECLRTRANS = 4006  ID_SELPROP_STROKECLRTRANS = 4006
1158  ID_SELPROP_FILLCLRTRANS = 4007  ID_SELPROP_FILLCLRTRANS = 4007
1159    ID_SELPROP_SPINCTRL_SIZE = 4008
1160    
1161  class SelectPropertiesDialog(wxDialog):  class SelectPropertiesDialog(wxDialog):
1162        """Dialog that allows the user to select group properties."""
1163    
1164      def __init__(self, parent, prop, shapeType):      def __init__(self, parent, prop, shapeType):
1165            """Open the dialog with the initial prop properties and shapeType."""
1166    
1167          wxDialog.__init__(self, parent, -1, _("Select Properties"),          wxDialog.__init__(self, parent, -1, _("Select Properties"),
1168                            style = wxDEFAULT_DIALOG_STYLE | wxRESIZE_BORDER)                            style = wxDEFAULT_DIALOG_STYLE | wxRESIZE_BORDER)
1169    
# Line 1002  class SelectPropertiesDialog(wxDialog): Line 1177  class SelectPropertiesDialog(wxDialog):
1177          previewBox = wxBoxSizer(wxVERTICAL)          previewBox = wxBoxSizer(wxVERTICAL)
1178          previewBox.Add(wxStaticText(self, -1, _("Preview:")),          previewBox.Add(wxStaticText(self, -1, _("Preview:")),
1179              0, wxALIGN_LEFT | wxALL, 4)              0, wxALIGN_LEFT | wxALL, 4)
1180          self.previewWin = ClassDataPreviewWindow(None, self.prop, shapeType,  
1181                                              self, ID_SELPROP_PREVIEW, (40, 40))          self.previewWin = ClassGroupPropertiesCtrl(
1182          previewBox.Add(self.previewWin, 1, wxGROW, 15)              self, ID_SELPROP_PREVIEW, self.prop, shapeType,
1183                (40, 40), wxSIMPLE_BORDER)
1184    
1185            self.previewWin.AllowEdit(False)
1186    
1187            previewBox.Add(self.previewWin, 1, wxGROW | wxALL, 4)
1188    
1189          itemBox.Add(previewBox, 1, wxALIGN_LEFT | wxALL | wxGROW, 0)          itemBox.Add(previewBox, 1, wxALIGN_LEFT | wxALL | wxGROW, 0)
1190    
# Line 1012  class SelectPropertiesDialog(wxDialog): Line 1192  class SelectPropertiesDialog(wxDialog):
1192          ctrlBox = wxBoxSizer(wxVERTICAL)          ctrlBox = wxBoxSizer(wxVERTICAL)
1193    
1194          lineColorBox = wxBoxSizer(wxHORIZONTAL)          lineColorBox = wxBoxSizer(wxHORIZONTAL)
1195          lineColorBox.Add(          button = wxButton(self, ID_SELPROP_STROKECLR, _("Change Line Color"))
1196              wxButton(self, ID_SELPROP_STROKECLR, _("Change Line Color")),          button.SetFocus()
1197              1, wxALL | wxGROW, 4)          lineColorBox.Add(button, 1, wxALL | wxGROW, 4)
1198          EVT_BUTTON(self, ID_SELPROP_STROKECLR, self._OnChangeLineColor)          EVT_BUTTON(self, ID_SELPROP_STROKECLR, self._OnChangeLineColor)
1199    
1200          lineColorBox.Add(          lineColorBox.Add(
# Line 1040  class SelectPropertiesDialog(wxDialog): Line 1220  class SelectPropertiesDialog(wxDialog):
1220              ctrlBox.Add(fillColorBox, 0,              ctrlBox.Add(fillColorBox, 0,
1221                          wxALIGN_CENTER_HORIZONTAL | wxALL | wxGROW, 4)                          wxALIGN_CENTER_HORIZONTAL | wxALL | wxGROW, 4)
1222    
1223            # Line width selection
1224          spinBox = wxBoxSizer(wxHORIZONTAL)          spinBox = wxBoxSizer(wxHORIZONTAL)
1225          spinBox.Add(wxStaticText(self, -1, _("Line Width: ")),          spinBox.Add(wxStaticText(self, -1, _("Line Width: ")),
1226                  0, wxALIGN_LEFT | wxALIGN_CENTER_VERTICAL | wxALL, 4)                  0, wxALIGN_LEFT | wxALIGN_CENTER_VERTICAL | wxALL, 4)
1227          self.spinCtrl = wxSpinCtrl(self, ID_SELPROP_SPINCTRL,          self.spinCtrl_linewidth = wxSpinCtrl(self,
1228                                     min=1, max=10,                                               ID_SELPROP_SPINCTRL_LINEWIDTH,
1229                                     value=str(prop.GetLineWidth()),                                               min=1, max=10,
1230                                     initial=prop.GetLineWidth())                                               value=str(prop.GetLineWidth()),
1231                                                 initial=prop.GetLineWidth())
         EVT_SPINCTRL(self, ID_SELPROP_SPINCTRL, self._OnSpin)  
1232    
1233          spinBox.Add(self.spinCtrl, 0, wxALIGN_LEFT | wxALL, 4)          EVT_SPINCTRL(self, ID_SELPROP_SPINCTRL_LINEWIDTH,
1234                         self._OnSpinLineWidth)
1235    
1236            spinBox.Add(self.spinCtrl_linewidth, 0, wxALIGN_LEFT | wxALL, 4)
1237          ctrlBox.Add(spinBox, 0, wxALIGN_RIGHT | wxALL, 0)          ctrlBox.Add(spinBox, 0, wxALIGN_RIGHT | wxALL, 0)
1238    
1239            # Size selection
1240            if shapeType == SHAPETYPE_POINT:
1241                spinBox = wxBoxSizer(wxHORIZONTAL)
1242                spinBox.Add(wxStaticText(self, -1, _("Size: ")),
1243                            0, wxALIGN_LEFT | wxALIGN_CENTER_VERTICAL | wxALL, 4)
1244                self.spinCtrl_size = wxSpinCtrl(self, ID_SELPROP_SPINCTRL_SIZE,
1245                                                min=1, max=100,
1246                                                value=str(prop.GetSize()),
1247                                                initial=prop.GetSize())
1248    
1249                EVT_SPINCTRL(self, ID_SELPROP_SPINCTRL_SIZE, self._OnSpinSize)
1250    
1251                spinBox.Add(self.spinCtrl_size, 0, wxALIGN_LEFT | wxALL, 4)
1252                ctrlBox.Add(spinBox, 0, wxALIGN_RIGHT | wxALL, 0)
1253    
1254    
1255          itemBox.Add(ctrlBox, 0, wxALIGN_RIGHT | wxALL | wxGROW, 0)          itemBox.Add(ctrlBox, 0, wxALIGN_RIGHT | wxALL | wxGROW, 0)
1256          topBox.Add(itemBox, 1, wxALIGN_LEFT | wxALL | wxGROW, 0)          topBox.Add(itemBox, 1, wxALIGN_LEFT | wxALL | wxGROW, 0)
1257    
# Line 1060  class SelectPropertiesDialog(wxDialog): Line 1259  class SelectPropertiesDialog(wxDialog):
1259          # Control buttons:          # Control buttons:
1260          #          #
1261          buttonBox = wxBoxSizer(wxHORIZONTAL)          buttonBox = wxBoxSizer(wxHORIZONTAL)
1262          buttonBox.Add(wxButton(self, ID_SELPROP_OK, _("OK")),          button_ok = wxButton(self, wxID_OK, _("OK"))
1263                        0, wxALL, 4)          buttonBox.Add(button_ok, 0, wxRIGHT|wxEXPAND, 10)
1264          buttonBox.Add(wxButton(self, ID_SELPROP_CANCEL, _("Cancel")),          buttonBox.Add(wxButton(self, wxID_CANCEL, _("Cancel")),
1265                        0, wxALL, 4)                        0, wxRIGHT|wxEXPAND, 10)
1266          topBox.Add(buttonBox, 0, wxALIGN_CENTER_HORIZONTAL|wxALIGN_BOTTOM, 10)          topBox.Add(buttonBox, 0, wxALIGN_RIGHT|wxBOTTOM|wxTOP, 10)
1267                                                                                    
1268          EVT_BUTTON(self, ID_SELPROP_OK, self._OnOK)          button_ok.SetDefault()
1269          EVT_BUTTON(self, ID_SELPROP_CANCEL, self._OnCancel)  
1270                                                                                            #EVT_BUTTON(self, wxID_OK, self._OnOK)
1271            #EVT_BUTTON(self, ID_SELPROP_CANCEL, self._OnCancel)
1272    
1273          self.SetAutoLayout(True)          self.SetAutoLayout(True)
1274          self.SetSizer(topBox)          self.SetSizer(topBox)
1275          topBox.Fit(self)          topBox.Fit(self)
1276          topBox.SetSizeHints(self)          topBox.SetSizeHints(self)
1277    
1278      def _OnOK(self, event):      def OnOK(self, event):
1279          self.EndModal(wxID_OK)          self.EndModal(wxID_OK)
1280    
1281      def _OnCancel(self, event):      def OnCancel(self, event):
1282          self.EndModal(wxID_CANCEL)          self.EndModal(wxID_CANCEL)
1283    
1284      def _OnSpin(self, event):      def _OnSpinLineWidth(self, event):
1285          self.prop.SetLineWidth(self.spinCtrl.GetValue())          self.prop.SetLineWidth(self.spinCtrl_linewidth.GetValue())
1286            self.previewWin.Refresh()
1287    
1288        def _OnSpinSize(self, event):
1289            self.prop.SetSize(self.spinCtrl_size.GetValue())
1290          self.previewWin.Refresh()          self.previewWin.Refresh()
1291    
1292      def __GetColor(self, cur):      def __GetColor(self, cur):
1293          dialog = wxColourDialog(self)          dialog = ColorDialog(self)
1294          dialog.GetColourData().SetColour(Color2wxColour(cur))          dialog.SetColor(cur)
1295    
1296          ret = None          ret = None
1297          if dialog.ShowModal() == wxID_OK:          if dialog.ShowModal() == wxID_OK:
1298              ret = wxColour2Color(dialog.GetColourData().GetColour())              ret = dialog.GetColor()
1299    
1300          dialog.Destroy()          dialog.Destroy()
1301    
1302          return ret          return ret
1303            
1304      def _OnChangeLineColor(self, event):      def _OnChangeLineColor(self, event):
1305          clr = self.__GetColor(self.prop.GetLineColor())          clr = self.__GetColor(self.prop.GetLineColor())
1306          if clr is not None:          if clr is not None:
# Line 1102  class SelectPropertiesDialog(wxDialog): Line 1308  class SelectPropertiesDialog(wxDialog):
1308          self.previewWin.Refresh() # XXX: work around, see ClassDataPreviewer          self.previewWin.Refresh() # XXX: work around, see ClassDataPreviewer
1309    
1310      def _OnChangeLineColorTrans(self, event):      def _OnChangeLineColorTrans(self, event):
1311          self.prop.SetLineColor(Color.None)          self.prop.SetLineColor(Transparent)
1312          self.previewWin.Refresh() # XXX: work around, see ClassDataPreviewer          self.previewWin.Refresh() # XXX: work around, see ClassDataPreviewer
1313            
1314      def _OnChangeFillColor(self, event):      def _OnChangeFillColor(self, event):
1315          clr = self.__GetColor(self.prop.GetFill())          clr = self.__GetColor(self.prop.GetFill())
1316          if clr is not None:          if clr is not None:
# Line 1112  class SelectPropertiesDialog(wxDialog): Line 1318  class SelectPropertiesDialog(wxDialog):
1318          self.previewWin.Refresh() # XXX: work around, see ClassDataPreviewer          self.previewWin.Refresh() # XXX: work around, see ClassDataPreviewer
1319    
1320      def _OnChangeFillColorTrans(self, event):      def _OnChangeFillColorTrans(self, event):
1321          self.prop.SetFill(Color.None)          self.prop.SetFill(Transparent)
1322          self.previewWin.Refresh() # XXX: work around, see ClassDataPreviewer          self.previewWin.Refresh() # XXX: work around, see ClassDataPreviewer
1323    
1324      def GetClassGroupProperties(self):      def GetClassGroupProperties(self):
# Line 1120  class SelectPropertiesDialog(wxDialog): Line 1326  class SelectPropertiesDialog(wxDialog):
1326    
1327    
1328  class ClassDataPreviewWindow(wxWindow):  class ClassDataPreviewWindow(wxWindow):
1329        """A custom window that draws group properties using the correct shape."""
1330    
1331      def __init__(self, rect, prop, shapeType,      def __init__(self, rect, prop, shapeType,
1332                         parent = None, id = -1, size = wxDefaultSize):                         parent = None, id = -1, size = wxDefaultSize):
1333            """Draws the appropriate shape as specified with shapeType using
1334            prop properities.
1335            """
1336          if parent is not None:          if parent is not None:
1337              wxWindow.__init__(self, parent, id, (0, 0), size)              wxWindow.__init__(self, parent, id, (0, 0), size)
1338              EVT_PAINT(self, self._OnPaint)              EVT_PAINT(self, self._OnPaint)
# Line 1133  class ClassDataPreviewWindow(wxWindow): Line 1343  class ClassDataPreviewWindow(wxWindow):
1343          self.shapeType = shapeType          self.shapeType = shapeType
1344          self.previewer = ClassDataPreviewer()          self.previewer = ClassDataPreviewer()
1345    
1346        def GetProperties():
1347            return self.prop
1348    
1349      def _OnPaint(self, event):      def _OnPaint(self, event):
1350          dc = wxPaintDC(self)          dc = wxPaintDC(self)
1351    
# Line 1148  class ClassDataPreviewWindow(wxWindow): Line 1361  class ClassDataPreviewWindow(wxWindow):
1361          self.previewer.Draw(dc, rect, self.prop, self.shapeType)          self.previewer.Draw(dc, rect, self.prop, self.shapeType)
1362    
1363  class ClassDataPreviewer:  class ClassDataPreviewer:
1364        """Class that actually draws a group property preview."""
1365    
1366      def Draw(self, dc, rect, prop, shapeType):      def Draw(self, dc, rect, prop, shapeType):
1367            """Draw the property.
1368    
1369          assert(dc is not None)          returns: (w, h) as adapted extend if the drawing size
1370          assert(isinstance(prop, ClassGroupProperties))          exceeded the given rect. This can only be the case
1371            for point symbols. If the symbol fits the given rect,
1372            None is returned.
1373            """
1374    
1375            assert dc is not None
1376            assert isinstance(prop, ClassGroupProperties)
1377    
1378          if rect is None:          if rect is None:
1379              x = 0              x = 0
# Line 1165  class ClassDataPreviewer: Line 1386  class ClassDataPreviewer:
1386              h = rect.GetHeight()              h = rect.GetHeight()
1387    
1388          stroke = prop.GetLineColor()          stroke = prop.GetLineColor()
1389          if stroke is Color.None:          if stroke is Transparent:
1390              pen = wxTRANSPARENT_PEN              pen = wxTRANSPARENT_PEN
1391          else:          else:
1392              pen = wxPen(Color2wxColour(stroke),              pen = wxPen(Color2wxColour(stroke),
# Line 1173  class ClassDataPreviewer: Line 1394  class ClassDataPreviewer:
1394                          wxSOLID)                          wxSOLID)
1395    
1396          stroke = prop.GetFill()          stroke = prop.GetFill()
1397          if stroke is Color.None:          if stroke is Transparent:
1398              brush = wxTRANSPARENT_BRUSH              brush = wxTRANSPARENT_BRUSH
1399          else:          else:
1400              brush = wxBrush(Color2wxColour(stroke), wxSOLID)              brush = wxBrush(Color2wxColour(stroke), wxSOLID)
# Line 1187  class ClassDataPreviewer: Line 1408  class ClassDataPreviewer:
1408                             wxPoint(x + w/2, y + h/4*3),                             wxPoint(x + w/2, y + h/4*3),
1409                             wxPoint(x + w, y)])                             wxPoint(x + w, y)])
1410    
1411          elif shapeType == SHAPETYPE_POINT or \          elif shapeType == SHAPETYPE_POINT:
1412               shapeType == SHAPETYPE_POLYGON:  
1413                dc.DrawCircle(x + w/2, y + h/2, prop.GetSize())
1414                circle_size =  prop.GetSize() * 2 + prop.GetLineWidth() * 2
1415                new_h = h
1416                new_w = w
1417                if h < circle_size: new_h = circle_size
1418                if w < circle_size: new_w = circle_size
1419                if new_h > h or new_w > w:
1420                    return (new_w, new_h)
1421    
1422              dc.DrawCircle(x + w/2, y + h/2,          elif shapeType == SHAPETYPE_POLYGON:
1423                            (min(w, h) - prop.GetLineWidth())/2)              dc.DrawRectangle(x, y, w, h)
1424    
1425            return None
1426    
1427  class ClassRenderer(wxPyGridCellRenderer):  class ClassRenderer(wxPyGridCellRenderer):
1428        """A wrapper class that can be used to draw group properties in a
1429        grid table.
1430        """
1431    
1432      def __init__(self, shapeType):      def __init__(self, shapeType):
1433          wxPyGridCellRenderer.__init__(self)          wxPyGridCellRenderer.__init__(self)
# Line 1211  class ClassRenderer(wxPyGridCellRenderer Line 1445  class ClassRenderer(wxPyGridCellRenderer
1445                           rect.GetWidth(), rect.GetHeight())                           rect.GetWidth(), rect.GetHeight())
1446    
1447          if not isinstance(data, ClassGroupMap):          if not isinstance(data, ClassGroupMap):
1448              self.previewer.Draw(dc, rect, data.GetProperties(), self.shapeType)              new_size = self.previewer.Draw(dc, rect, data.GetProperties(),
1449                                               self.shapeType)
1450                if new_size is not None:
1451                    (new_w, new_h) = new_size
1452                    grid.SetRowSize(row, new_h)
1453                    grid.SetColSize(col, new_h)
1454                    grid.ForceRefresh()
1455    
1456                    # now that we know the height, redraw everything
1457                    rect.SetHeight(new_h)
1458                    rect.SetWidth(new_w)
1459                    dc.DestroyClippingRegion()
1460                    dc.SetClippingRegion(rect.GetX(), rect.GetY(),
1461                                         rect.GetWidth(), rect.GetHeight())
1462                    dc.SetPen(wxPen(wxLIGHT_GREY))
1463                    dc.SetBrush(wxBrush(wxLIGHT_GREY, wxSOLID))
1464                    dc.DrawRectangle(rect.GetX(), rect.GetY(),
1465                                     rect.GetWidth(), rect.GetHeight())
1466                    self.previewer.Draw(dc, rect, data.GetProperties(),
1467                                        self.shapeType)
1468    
1469          if isSelected:          if isSelected:
1470              dc.SetPen(wxPen(wxColour(0 * 255, 0 * 255, 0 * 255),              dc.SetPen(wxPen(wxBLACK, 1, wxSOLID))
                       4, wxSOLID))  
1471              dc.SetBrush(wxTRANSPARENT_BRUSH)              dc.SetBrush(wxTRANSPARENT_BRUSH)
1472    
1473              dc.DrawRectangle(rect.GetX(), rect.GetY(),              dc.DrawRectangle(rect.GetX(), rect.GetY(),
1474                               rect.GetWidth(), rect.GetHeight())                               rect.GetWidth(), rect.GetHeight())
1475    
1476          dc.DestroyClippingRegion()          dc.DestroyClippingRegion()
1477    
1478    
1479    class ClassGroupPropertiesCtrl(wxControl):
1480        """A custom window and control that draw a preview of group properties
1481        and can open a dialog to modify the properties if the user double-clicks
1482        it.
1483        """
1484    
1485        def __init__(self, parent, id, props, shapeType,
1486                     size = wxDefaultSize, style = 0):
1487            wxControl.__init__(self, parent, id, size = size, style = style)
1488    
1489            self.parent = parent
1490    
1491            self.SetProperties(props)
1492            self.SetShapeType(shapeType)
1493            self.AllowEdit(True)
1494    
1495            EVT_PAINT(self, self._OnPaint)
1496            EVT_LEFT_DCLICK(self, self._OnLeftDClick)
1497    
1498            self.previewer = ClassDataPreviewer()
1499    
1500        def _OnPaint(self, event):
1501            dc = wxPaintDC(self)
1502    
1503            # XXX: this doesn't seem to be having an effect:
1504            dc.DestroyClippingRegion()
1505    
1506            w, h = self.GetClientSize()
1507    
1508            self.previewer.Draw(dc,
1509                                wxRect(0, 0, w, h),
1510                                self.GetProperties(),
1511                                self.GetShapeType())
1512    
1513    
1514        def GetProperties(self):
1515            return self.props
1516    
1517        def SetProperties(self, props):
1518            self.props = props
1519            self.Refresh()
1520    
1521        def GetShapeType(self):
1522            return self.shapeType
1523    
1524        def SetShapeType(self, shapeType):
1525            self.shapeType = shapeType
1526            self.Refresh()
1527    
1528        def AllowEdit(self, allow):
1529            """Allow/Disallow double-clicking on the control."""
1530            self.allowEdit = allow
1531    
1532        def DoEdit(self):
1533            """Open the properties selector dialog."""
1534    
1535            if not self.allowEdit: return
1536    
1537            propDlg = SelectPropertiesDialog(self.parent,
1538                                             self.GetProperties(),
1539                                             self.GetShapeType())
1540    
1541            if propDlg.ShowModal() == wxID_OK:
1542                new_prop = propDlg.GetClassGroupProperties()
1543                self.SetProperties(new_prop)
1544                self.Refresh()
1545    
1546            propDlg.Destroy()
1547    
1548        def _OnLeftDClick(self, event):
1549            self.DoEdit()
1550    
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