/[thuban]/branches/WIP-pyshapelib-bramz/Thuban/UI/classifier.py
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revision 460 by jonathan, Wed Mar 5 18:16:28 2003 UTC revision 878 by jonathan, Fri May 9 16:32:31 2003 UTC
# Line 1  Line 1 
1  # Copyright (c) 2001 by Intevation GmbH  # Copyright (c) 2001, 2003 by Intevation GmbH
2  # Authors:  # Authors:
3  # Jonathan Coles <[email protected]>  # Jonathan Coles <[email protected]>
4  #  #
# Line 11  __version__ = "$Revision$" Line 11  __version__ = "$Revision$"
11    
12  import copy  import copy
13    
14    from Thuban.Model.table import FIELDTYPE_INT, FIELDTYPE_DOUBLE, \
15         FIELDTYPE_STRING
16    
17  from wxPython.wx import *  from wxPython.wx import *
18  from wxPython.grid import *  from wxPython.grid import *
19    
20  from Thuban import _  from Thuban import _
21  from Thuban.common import *  from Thuban.UI.common import Color2wxColour, wxColour2Color
 from Thuban.UI.common import *  
22    
23  from Thuban.Model.classification import *  from Thuban.Model.range import Range
24    from Thuban.Model.classification import \
25        Classification, ClassGroupDefault, \
26        ClassGroupSingleton, ClassGroupRange, ClassGroupMap, \
27        ClassGroupProperties
28    
29  from Thuban.Model.color import Color  from Thuban.Model.color import Color
30    
31  from Thuban.Model.layer import Layer, SHAPETYPE_ARC, SHAPETYPE_POLYGON, SHAPETYPE_POINT  from Thuban.Model.layer import Layer, \
32        SHAPETYPE_ARC, SHAPETYPE_POLYGON, SHAPETYPE_POINT
33    
34    from Thuban.UI.classgen import ClassGenDialog, ClassGenerator
35    
36    from dialogs import NonModalDialog
37    
 # widget id's  
 ID_PROPERTY_SELECT = 4010  
38  ID_CLASS_TABLE = 40011  ID_CLASS_TABLE = 40011
39    
 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  
40    
41  # table columns  # table columns
42  COL_SYMBOL = 0  COL_VISIBLE = 0
43  COL_VALUE  = 1  COL_SYMBOL  = 1
44  COL_LABEL  = 2  COL_VALUE   = 2
45    COL_LABEL   = 3
46    NUM_COLS    = 4
47    
48  # indices into the client data lists in Classifier.fields  # indices into the client data lists in Classifier.fields
49  FIELD_CLASS = 0  FIELD_CLASS = 0
# Line 53  FIELD_NAME = 2 Line 57  FIELD_NAME = 2
57  import weakref  import weakref
58  class ClassGrid(wxGrid):  class ClassGrid(wxGrid):
59    
60      def __init__(self, parent):  
61        def __init__(self, parent, classifier):
62          """Constructor.          """Constructor.
63    
64          parent -- the parent window          parent -- the parent window
# Line 62  class ClassGrid(wxGrid): Line 67  class ClassGrid(wxGrid):
67                   use for display.                   use for display.
68          """          """
69    
70          wxGrid.__init__(self, parent, ID_CLASS_TABLE, size = (340, 160))          wxGrid.__init__(self, parent, ID_CLASS_TABLE, style = 0)
71          self.SetTable(ClassTable(fieldData, layer.ShapeType(), self), true)  
72          self.SetSelectionMode(wxGrid.wxGridSelectRows)          self.classifier = classifier
73    
74            self.currentSelection = []
75    
76          EVT_GRID_CELL_LEFT_DCLICK(self, self._OnCellDClick)          EVT_GRID_CELL_LEFT_DCLICK(self, self._OnCellDClick)
77          EVT_GRID_RANGE_SELECT(self, self._OnSelectedRange)          EVT_GRID_RANGE_SELECT(self, self._OnSelectedRange)
78          EVT_GRID_SELECT_CELL(self, self._OnSelectedCell)          EVT_GRID_SELECT_CELL(self, self._OnSelectedCell)
79            EVT_GRID_COL_SIZE(self, self._OnCellResize)
80            EVT_GRID_ROW_SIZE(self, self._OnCellResize)
81    
82          self.currentSelection = []      #def GetCellAttr(self, row, col):
83            #print "GetCellAttr ", row, col
84            #wxGrid.GetCellAttr(self, row, col)
85    
86      def CreateTable(self, clazz, shapeType):      def CreateTable(self, clazz, shapeType, group = None):
87    
88          assert(isinstance(clazz, Classification))          assert isinstance(clazz, Classification)
89    
         self.shapeType = shapeType  
90          table = self.GetTable()          table = self.GetTable()
91          if table is None:          if table is None:
92              self.SetTable(ClassTable(clazz, self.shapeType, self), true)              w = self.GetDefaultColSize() * NUM_COLS \
93          else:                  + self.GetDefaultRowLabelSize()
94              table.Reset(clazz, self.shapeType)              h = self.GetDefaultRowSize() * 4 \
95                    + self.GetDefaultColLabelSize()
96    
97                self.SetDimensions(-1, -1, w, h)
98                self.SetSizeHints(w, h, -1, -1)
99                table = ClassTable(self)
100                self.SetTable(table, True)
101    
102    
103            self.SetSelectionMode(wxGrid.wxGridSelectRows)
104          self.ClearSelection()          self.ClearSelection()
105    
106            table.Reset(clazz, shapeType, group)
107    
108      def GetCurrentSelection(self):      def GetCurrentSelection(self):
109          """Return the currently highlighted rows as an increasing list          """Return the currently highlighted rows as an increasing list
110             of row numbers."""             of row numbers."""
# Line 92  class ClassGrid(wxGrid): Line 112  class ClassGrid(wxGrid):
112          sel.sort()          sel.sort()
113          return sel          return sel
114    
115      def SetCellRenderer(self, row, col):      def GetSelectedRows(self):
116          raise ValueError(_("Must not allow setting of renderer in ClassGrid!"))          return self.GetCurrentSelection()
117    
118        #def SetCellRenderer(self, row, col, renderer):
119            #raise ValueError(_("Must not allow setting of renderer in ClassGrid!"))
120    
121      #      #
122      # [Set|Get]Table is taken from http://wiki.wxpython.org      # [Set|Get]Table is taken from http://wiki.wxpython.org
# Line 125  class ClassGrid(wxGrid): Line 148  class ClassGrid(wxGrid):
148          # if only one thing is selected check if it is the default          # if only one thing is selected check if it is the default
149          # data row, because we can't remove that          # data row, because we can't remove that
150          if len(sel) == 1:          if len(sel) == 1:
151              group = self.GetTable().GetValueAsCustom(sel[0], COL_SYMBOL, None)              #group = self.GetTable().GetValueAsCustom(sel[0], COL_SYMBOL, None)
152                group = self.GetTable().GetClassGroup(sel[0])
153              if isinstance(group, ClassGroupDefault):              if isinstance(group, ClassGroupDefault):
154                  wxMessageDialog(self,                  wxMessageDialog(self,
155                                  "The Default group cannot be removed.",                                  "The Default group cannot be removed.",
# Line 157  class ClassGrid(wxGrid): Line 181  class ClassGrid(wxGrid):
181                  r = self.GetNumberRows() - 1                  r = self.GetNumberRows() - 1
182              self.SelectRow(r)              self.SelectRow(r)
183                    
184    
185        def SelectGroup(self, group, makeVisible = True):
186            if group is None: return
187    
188            assert isinstance(group, ClassGroup)
189    
190            table = self.GetTable()
191    
192            assert table is not None
193    
194            for i in range(table.GetNumberRows()):
195                g = table.GetClassGroup(i)
196                if g is group:
197                    self.SelectRow(i)
198                    if makeVisible:
199                        self.MakeCellVisible(i, 0)
200                    break
201    
202  #  #
203  # 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!
204  #  #
# Line 169  class ClassGrid(wxGrid): Line 211  class ClassGrid(wxGrid):
211  #                                  sel = False))  #                                  sel = False))
212    
213      def _OnCellDClick(self, event):      def _OnCellDClick(self, event):
214          """Handle a double on a cell."""          """Handle a double click on a cell."""
215    
216          r = event.GetRow()          r = event.GetRow()
217          c = event.GetCol()          c = event.GetCol()
         if c == COL_SYMBOL:  
             group = self.GetTable().GetValueAsCustom(r, c, None)  
             prop = group.GetProperties()  
218    
219              # get a new ClassGroupProperties object and copy the          if c == COL_SYMBOL:
220              # values over to our current object              self.classifier.EditSymbol(r)
221              propDlg = SelectPropertiesDialog(NULL, prop, self.shapeType)          else:
222              if propDlg.ShowModal() == wxID_OK:              event.Skip()
                 new_prop = propDlg.GetClassGroupProperties()  
                 prop.SetProperties(new_prop)  
                 self.Refresh()  
             propDlg.Destroy()  
223    
224      #      #
225      # _OnSelectedRange() and _OnSelectedCell() were borrowed      # _OnSelectedRange() and _OnSelectedCell() were borrowed
# Line 211  class ClassGrid(wxGrid): Line 246  class ClassGrid(wxGrid):
246          #self.ConfigureForSelection()          #self.ConfigureForSelection()
247          event.Skip()          event.Skip()
248    
249        def _OnCellResize(self, event):
250            self.FitInside()
251            event.Skip()
252    
253  class ClassTable(wxPyGridTableBase):  class ClassTable(wxPyGridTableBase):
254      """Represents the underlying data structure for the grid."""      """Represents the underlying data structure for the grid."""
255    
256      NUM_COLS = 3      __col_labels = [_("Visible"), _("Symbol"), _("Value"), _("Label")]
257    
     __col_labels = [_("Symbol"), _("Value"), _("Label")]  
258    
259      def __init__(self, clazz, shapeType, view = None):      def __init__(self, view = None):
260        #def __init__(self, clazz, shapeType, view = None):
261          """Constructor.          """Constructor.
262    
263          shapeType -- the type of shape that the layer uses          shapeType -- the type of shape that the layer uses
# Line 227  class ClassTable(wxPyGridTableBase): Line 266  class ClassTable(wxPyGridTableBase):
266          """          """
267    
268          wxPyGridTableBase.__init__(self)          wxPyGridTableBase.__init__(self)
         self.SetView(view)  
         self.tdata = []  
269    
270          self.Reset(clazz, shapeType)          assert len(ClassTable.__col_labels) == NUM_COLS
271    
272            self.clazz = None
273            self.__colAttr = {}
274    
275            self.SetView(view)
276    
277      def Reset(self, clazz, shapeType):      def Reset(self, clazz, shapeType, group = None):
278          """Reset the table with the given data.          """Reset the table with the given data.
279    
280          This is necessary because wxWindows does not allow a grid's          This is necessary because wxWindows does not allow a grid's
# Line 246  class ClassTable(wxPyGridTableBase): Line 288  class ClassTable(wxPyGridTableBase):
288          shapeType -- the type of shape that the layer uses          shapeType -- the type of shape that the layer uses
289          """          """
290    
291          assert(isinstance(clazz, Classification))          assert isinstance(clazz, Classification)
292    
293          self.GetView().BeginBatch()          self.GetView().BeginBatch()
294    
295          self.clazz = clazz          self.fieldType = clazz.GetFieldType()
296          self.shapeType = shapeType          self.shapeType = shapeType
         self.renderer = ClassRenderer(self.shapeType)  
297    
298          old_len = len(self.tdata)          self.SetClassification(clazz, group)
299            self.__Modified(-1)
300    
301            self.__colAttr = {}
302    
303            attr = wxGridCellAttr()
304            attr.SetEditor(wxGridCellBoolEditor())
305            attr.SetRenderer(wxGridCellBoolRenderer())
306            attr.SetAlignment(wxALIGN_CENTER, wxALIGN_CENTER)
307            self.__colAttr[COL_VISIBLE] = attr
308    
309            attr = wxGridCellAttr()
310            attr.SetRenderer(ClassRenderer(self.shapeType))
311            attr.SetReadOnly()
312            self.__colAttr[COL_SYMBOL] = attr
313    
314            self.GetView().EndBatch()
315            self.GetView().FitInside()
316    
317          self.tdata = []      def GetClassification(self):
318            return self.clazz
319    
320        def SetClassification(self, clazz, group = None):
321    
322            self.GetView().BeginBatch()
323    
324            old_len = self.GetNumberRows()
325    
326            row = -1
327            self.clazz = clazz
328    
329            self.__NotifyRowChanges(old_len, self.GetNumberRows())
330    
331          #          #
332          # copy the data out of the classification and into our          # XXX: this is dead code at the moment
         # array  
333          #          #
334          for p in self.clazz:          if row > -1:
335              np = copy.copy(p)              self.GetView().ClearSelection()
336              self.__SetRow(-1, np)              self.GetView().SelectRow(row)
337                self.GetView().MakeCellVisible(row, 0)
338    
339            self.__Modified()
340    
   
         self.__Modified(False)  
341    
         self.__NotifyRowChanges(old_len, len(self.tdata))  
342          self.GetView().EndBatch()          self.GetView().EndBatch()
343            self.GetView().FitInside()
344    
345      def __NotifyRowChanges(self, curRows, newRows):      def __NotifyRowChanges(self, curRows, newRows):
346          #          #
# Line 282  class ClassTable(wxPyGridTableBase): Line 352  class ClassTable(wxPyGridTableBase):
352                          wxGRIDTABLE_NOTIFY_ROWS_APPENDED,                          wxGRIDTABLE_NOTIFY_ROWS_APPENDED,
353                          newRows - curRows)    # how many                          newRows - curRows)    # how many
354              self.GetView().ProcessTableMessage(msg)              self.GetView().ProcessTableMessage(msg)
355                self.GetView().FitInside()
356          elif newRows < curRows:          elif newRows < curRows:
357              msg = wxGridTableMessage(self,              msg = wxGridTableMessage(self,
358                          wxGRIDTABLE_NOTIFY_ROWS_DELETED,                          wxGRIDTABLE_NOTIFY_ROWS_DELETED,
359                          curRows - newRows,    # position                          curRows,              # position
360                          curRows - newRows)    # how many                          curRows - newRows)    # how many
361              self.GetView().ProcessTableMessage(msg)              self.GetView().ProcessTableMessage(msg)
362                self.GetView().FitInside()
363    
364    
365      def __SetRow(self, row, group):      def __SetRow(self, row, group):
366          """Set a row's data to that of the group.          """Set a row's data to that of the group.
367    
368          row -- if row is -1 or greater than the current number of rows          The table is considered modified after this operation.
369                 then group is appended to the end.  
370            row -- if row is < 0 'group' is inserted at the top of the table
371                   if row is >= GetNumberRows() or None 'group' is append to
372                        the end of the table.
373                   otherwise 'group' replaces row 'row'
374          """          """
375    
376          # either append or replace          # either append or replace
377          if row == -1 or row >= self.GetNumberRows():          if row is None or row >= self.GetNumberRows():
378              self.tdata.append(group)              self.clazz.AppendGroup(group)
379            elif row < 0:
380                self.clazz.InsertGroup(0, group)
381          else:          else:
382              self.tdata[row] = group              if row == 0:
383                    self.clazz.SetDefaultGroup(group)
384                else:
385                    self.clazz.ReplaceGroup(row - 1, group)
386    
387          self.__Modified()          self.__Modified()
388    
# Line 311  class ClassTable(wxPyGridTableBase): Line 393  class ClassTable(wxPyGridTableBase):
393      def GetRowLabelValue(self, row):      def GetRowLabelValue(self, row):
394          """Return the label for the given row."""          """Return the label for the given row."""
395    
396          group = self.tdata[row]          if row == 0:
397          if isinstance(group, ClassGroupDefault):   return _("Default")              return _("Default")
398          if isinstance(group, ClassGroupSingleton): return _("Singleton")          else:
399          if isinstance(group, ClassGroupRange):     return _("Range")              group = self.clazz.GetGroup(row - 1)
400          if isinstance(group, ClassGroupMap):       return _("Map")              if isinstance(group, ClassGroupDefault):   return _("Default")
401                if isinstance(group, ClassGroupSingleton): return _("Singleton")
402                if isinstance(group, ClassGroupRange):     return _("Range")
403                if isinstance(group, ClassGroupMap):       return _("Map")
404    
405          assert(False) # shouldn't get here          assert False # shouldn't get here
406          return _("")          return ""
407    
408      def GetNumberRows(self):      def GetNumberRows(self):
409          """Return the number of rows."""          """Return the number of rows."""
410          return len(self.tdata)          if self.clazz is None:
411                return 0
412    
413            return self.clazz.GetNumGroups() + 1 # +1 for default group
414    
415      def GetNumberCols(self):      def GetNumberCols(self):
416          """Return the number of columns."""          """Return the number of columns."""
417          return self.NUM_COLS          return NUM_COLS
418    
419      def IsEmptyCell(self, row, col):      def IsEmptyCell(self, row, col):
420          """Determine if a cell is empty. This is always false."""          """Determine if a cell is empty. This is always false."""
# Line 344  class ClassTable(wxPyGridTableBase): Line 432  class ClassTable(wxPyGridTableBase):
432          """          """
433    
434          self.SetValueAsCustom(row, col, None, value)          self.SetValueAsCustom(row, col, None, value)
         self.__Modified()  
435                
436      def GetValueAsCustom(self, row, col, typeName):      def GetValueAsCustom(self, row, col, typeName):
437          """Return the object that is used to represent the given          """Return the object that is used to represent the given
# Line 353  class ClassTable(wxPyGridTableBase): Line 440  class ClassTable(wxPyGridTableBase):
440          typeName -- unused, but needed to overload wxPyGridTableBase          typeName -- unused, but needed to overload wxPyGridTableBase
441          """          """
442    
443          group = self.tdata[row]          if row == 0:
444                group = self.clazz.GetDefaultGroup()
445            else:
446                group = self.clazz.GetGroup(row - 1)
447    
448    
449            if col == COL_VISIBLE:
450                return group.IsVisible()
451    
452          if col == COL_SYMBOL:          if col == COL_SYMBOL:
453              return group              return group.GetProperties()
454    
455          if col == COL_LABEL:          if col == COL_LABEL:
456              return group.GetLabel()              return group.GetLabel()
457    
458          # col must be COL_VALUE          # col must be COL_VALUE
459          assert(col == COL_VALUE)          assert col == COL_VALUE
460    
461          if isinstance(group, ClassGroupDefault):          if isinstance(group, ClassGroupDefault):
462              return _("DEFAULT")              return _("DEFAULT")
463          elif isinstance(group, ClassGroupSingleton):          elif isinstance(group, ClassGroupSingleton):
464              return group.GetValue()              return group.GetValue()
465          elif isinstance(group, ClassGroupRange):          elif isinstance(group, ClassGroupRange):
466              return _("%s - %s") % (group.GetMin(), group.GetMax())              return group.GetRange()
467    
468          assert(False) # shouldn't get here          assert False # shouldn't get here
469          return None          return None
470    
471      def __ParseInput(self, value):      def __ParseInput(self, value):
472          """Try to determine what kind of input value is          """Try to determine what kind of input value is
473             (string, number, or range)             (string, number, or range)
474    
475          Returns a tuple of length one if there is a single          Returns a tuple (type, data) where type is 0 if data is
476          value, or of length two if it is a range.          a singleton value, or 1 if is a range
477          """          """
478    
479          type = self.clazz.GetFieldType()          type = self.fieldType
480    
481          if type == FIELDTYPE_STRING:          if type == FIELDTYPE_STRING:
482              return (value,)              return (0, value)
483          elif type == FIELDTYPE_INT or type == FIELDTYPE_DOUBLE:          elif type in (FIELDTYPE_INT, FIELDTYPE_DOUBLE):
   
484              if type == FIELDTYPE_INT:              if type == FIELDTYPE_INT:
485                    # the float call allows the user to enter 1.0 for 1
486                  conv = lambda p: int(float(p))                  conv = lambda p: int(float(p))
487              else:              else:
488                  conv = lambda p: p                  conv = float
489    
490              #              #
491              # first try to take the input as a single number              # first try to take the input as a single number
492              # if there's an exception try to break it into              # if there's an exception try to break it into
493              # a range seperated by a '-'. take care to ignore              # a range. if there is an exception here, let it
494              # 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.  
495              #              #
496              try:              try:
497                  return (conv(Str2Num(value)),)                  return (0, conv(value))
498              except ValueError:              except ValueError:
499                  i = value.find('-')                  return (1, Range(value))
                 if i == 0:  
                     i = value.find('-', 1)  
500    
501                  return (conv(Str2Num(value[:i])), conv(Str2Num(value[i+1:])))          assert False  # shouldn't get here
502            return (0,None)
         assert(False) # shouldn't get here  
               
503    
504      def SetValueAsCustom(self, row, col, typeName, value):      def SetValueAsCustom(self, row, col, typeName, value):
505          """Set the cell specified by 'row' and 'col' to 'value'.          """Set the cell specified by 'row' and 'col' to 'value'.
# Line 426  class ClassTable(wxPyGridTableBase): Line 513  class ClassTable(wxPyGridTableBase):
513          typeName -- unused, but needed to overload wxPyGridTableBase          typeName -- unused, but needed to overload wxPyGridTableBase
514          """          """
515    
516          assert(col >= 0 and col < self.GetNumberCols())          assert 0 <= col < self.GetNumberCols()
517          assert(row >= 0 and row < self.GetNumberRows())          assert 0 <= row < self.GetNumberRows()
518    
519          group = self.tdata[row]          if row == 0:
520                group = self.clazz.GetDefaultGroup()
521            else:
522                group = self.clazz.GetGroup(row - 1)
523    
524          mod = False          mod = True # assume the data will change
525    
526          if col == COL_SYMBOL:          if col == COL_VISIBLE:
527              self.__SetRow(row, value)              group.SetVisible(value)
528              mod = True          elif col == COL_SYMBOL:
529                group.SetProperties(value)
530            elif col == COL_LABEL:
531                group.SetLabel(value)
532          elif col == COL_VALUE:          elif col == COL_VALUE:
533              if isinstance(group, ClassGroupDefault):              if isinstance(group, ClassGroupDefault):
534                  # not allowed to modify the default value                  # not allowed to modify the default value
# Line 448  class ClassTable(wxPyGridTableBase): Line 541  class ClassTable(wxPyGridTableBase):
541                      dataInfo = self.__ParseInput(value)                      dataInfo = self.__ParseInput(value)
542                  except ValueError:                  except ValueError:
543                      # bad input, ignore the request                      # bad input, ignore the request
544                      pass                      mod = False
545                  else:                  else:
546    
547                        changed = False
548                      ngroup = group                      ngroup = group
549                      props = group.GetProperties()                      props = group.GetProperties()
550    
# Line 459  class ClassTable(wxPyGridTableBase): Line 553  class ClassTable(wxPyGridTableBase):
553                      # changing the underlying group type if the                      # changing the underlying group type if the
554                      # group was a singleton and a range was entered                      # group was a singleton and a range was entered
555                      #                      #
556                      if len(dataInfo) == 1:                      if dataInfo[0] == 0:
557                          if not isinstance(group, ClassGroupSingleton):                          if not isinstance(group, ClassGroupSingleton):
558                              ngroup = ClassGroupSingleton(prop = props)                              ngroup = ClassGroupSingleton(props = props)
559                          ngroup.SetValue(dataInfo[0])                              changed = True
560                      elif len(dataInfo) == 2:                          ngroup.SetValue(dataInfo[1])
561                        elif dataInfo[0] == 1:
562                          if not isinstance(group, ClassGroupRange):                          if not isinstance(group, ClassGroupRange):
563                              ngroup = ClassGroupRange(prop = props)                              ngroup = ClassGroupRange(props = props)
564                          ngroup.SetRange(dataInfo[0], dataInfo[1])                              changed = True
565                            ngroup.SetRange(dataInfo[1])
566                      else:                      else:
567                          assert(False)                          assert False
568                            pass
                     ngroup.SetLabel(group.GetLabel())  
   
                     self.__SetRow(row, ngroup)  
   
                     mod = True  
569    
570                        if changed:
571                            ngroup.SetLabel(group.GetLabel())
572                            self.SetClassGroup(row, ngroup)
573            else:
574                assert False # shouldn't be here
575                pass
576    
577          elif col == COL_LABEL:          if mod:
             group.SetLabel(value)  
             mod = True  
   
         if mod:  
578              self.__Modified()              self.__Modified()
579              self.GetView().Refresh()              self.GetView().Refresh()
580    
581      def GetAttr(self, row, col, someExtraParameter):      def GetAttr(self, row, col, someExtraParameter):
582          """Returns the cell attributes"""          """Returns the cell attributes"""
583    
584          attr = wxGridCellAttr()          return self.__colAttr.get(col, wxGridCellAttr()).Clone()
         #attr = wxPyGridTableBase.GetAttr(self, row, col, someExtraParameter)  
   
         if col == COL_SYMBOL:  
             attr.SetRenderer(ClassRenderer(self.shapeType))  
             attr.SetReadOnly()  
   
         return attr  
585    
586      def GetClassGroup(self, row):      def GetClassGroup(self, row):
587          """Return the ClassGroup object representing row 'row'."""          """Return the ClassGroup object representing row 'row'."""
588    
589          return self.GetValueAsCustom(row, COL_SYMBOL, None)          #return self.GetValueAsCustom(row, COL_SYMBOL, None)
590            if row == 0:
591                return self.clazz.GetDefaultGroup()
592            else:
593                return self.clazz.GetGroup(row - 1)
594    
595      def SetClassGroup(self, row, group):      def SetClassGroup(self, row, group):
596          self.SetValueAsCustom(row, COL_SYMBOL, None, group)          self.__SetRow(row, group)
597            self.GetView().Refresh()
598    
599      def __Modified(self, mod = True):      def __Modified(self, mod = True):
600          """Set the modified flag."""          """Adjust the modified flag.
601          self.modified = mod  
602            mod -- if -1 set the modified flag to False, otherwise perform
603                   an 'or' operation with the current value of the flag and
604                   'mod'
605            """
606    
607            if mod == -1:
608                self.modified = False
609            else:
610                self.modified = mod or self.modified
611    
612      def IsModified(self):      def IsModified(self):
613          """True if this table is considered modified."""          """True if this table is considered modified."""
614          return self.modified          return self.modified
615    
616      def DeleteRows(self, pos, numRows = 1):      def DeleteRows(self, pos, numRows = 1):
617          """Deletes 'numRows' beginning at row 'pos'.          """Deletes 'numRows' beginning at row 'pos'.
618    
619          The table is considered modified after this operation.          The row representing the default group is not removed.
620    
621            The table is considered modified if any rows are removed.
622          """          """
623    
624          assert(pos >= 0)          assert pos >= 0
625          old_len = len(self.tdata)          old_len = self.GetNumberRows()
626          for row in range(pos, pos - numRows, -1):          for row in range(pos, pos - numRows, -1):
627              group = self.GetValueAsCustom(row, COL_SYMBOL, None)              group = self.GetClassGroup(row)
628              if not isinstance(group, ClassGroupDefault):              if row != 0:
629                  self.tdata.pop(row)                  self.clazz.RemoveGroup(row - 1)
630                  self.__Modified()                  self.__Modified()
631            
632          if self.IsModified():          if self.IsModified():
633              self.__NotifyRowChanges(old_len, len(self.tdata))              self.__NotifyRowChanges(old_len, self.GetNumberRows())
634    
635      def AppendRows(self, numRows = 1):      def AppendRows(self, numRows = 1):
636          """Append 'numRows' empty rows to the end of the table."""          """Append 'numRows' empty rows to the end of the table.
637    
638          old_len = len(self.tdata)          The table is considered modified if any rows are appended.
639            """
640    
641            old_len = self.GetNumberRows()
642          for i in range(numRows):          for i in range(numRows):
643              np = ClassGroupSingleton()              np = ClassGroupSingleton()
644              self.__SetRow(-1, np)              self.__SetRow(None, np)
             #self.tdata.append([np, np.GetValue(), np.GetLabel()])  
             self.__Modified()  
645    
646          if self.IsModified():          if self.IsModified():
647              self.__NotifyRowChanges(old_len, len(self.tdata))              self.__NotifyRowChanges(old_len, self.GetNumberRows())
648    
649    
650  class Classifier(wxDialog):  ID_PROPERTY_REVERT = 4002
651        ID_PROPERTY_ADD = 4003
652      def __init__(self, parent, layer):  ID_PROPERTY_GENCLASS = 4004
653          wxDialog.__init__(self, parent, -1, _("Classify"),  ID_PROPERTY_REMOVE = 4005
654                            style = wxDEFAULT_DIALOG_STYLE | wxRESIZE_BORDER)  ID_PROPERTY_MOVEUP = 4006
655    ID_PROPERTY_MOVEDOWN = 4007
656    ID_PROPERTY_TRY = 4008
657    ID_PROPERTY_EDITSYM = 4009
658    ID_PROPERTY_SELECT = 4011
659    ID_PROPERTY_TITLE = 4012
660    ID_PROPERTY_FIELDTEXT = 4013
661    
662    BTN_ADD = 0
663    BTN_EDIT = 1
664    BTN_GEN = 2
665    BTN_UP = 3
666    BTN_DOWN = 4
667    BTN_RM = 5
668    
669    EB_LAYER_TITLE = 0
670    EB_SELECT_FIELD = 1
671    EB_GEN_CLASS = 2
672    
673    class Classifier(NonModalDialog):
674    
675        type2string = {None:             _("None"),
676                       FIELDTYPE_STRING: _("Text"),
677                       FIELDTYPE_INT:    _("Integer"),
678                       FIELDTYPE_DOUBLE: _("Decimal")}
679    
680        def __init__(self, parent, name, layer, group = None):
681            NonModalDialog.__init__(self, parent, name, "")
682    
683            self.__SetTitle(layer.Title())
684    
685          self.layer = layer          self.layer = layer
686    
687          topBox = wxBoxSizer(wxVERTICAL)          self.originalClass = self.layer.GetClassification()
688            field = self.originalClass.GetField()
689            fieldType = self.originalClass.GetFieldType()
690    
691          topBox.Add(wxStaticText(self, -1, _("Layer: %s") % layer.Title()),          self.genDlg = None
692              0, wxALIGN_LEFT | wxALL, 4)  
693          topBox.Add(wxStaticText(self, -1, _("Type: %s") % layer.ShapeType()),          ############################
694              0, wxALIGN_LEFT | wxALL, 4)          # Create the controls
695            #
696    
697          propertyBox = wxBoxSizer(wxHORIZONTAL)          panel = wxPanel(self, -1)
         propertyBox.Add(wxStaticText(self, -1, _("Field: ")),  
             0, wxALIGN_CENTER | wxALL, 4)  
698    
699          self.fields = wxComboBox(self, ID_PROPERTY_SELECT, "",          text_title = wxTextCtrl(panel, ID_PROPERTY_TITLE, layer.Title())
700                                       style = wxCB_READONLY)          #
701            # make field choice box
702            #
703            self.fields = wxChoice(panel, ID_PROPERTY_SELECT,)
704    
705          self.num_cols = layer.table.field_count()          self.num_cols = layer.table.NumColumns()
706          # just assume the first field in case one hasn't been          # just assume the first field in case one hasn't been
707          # specified in the file.          # specified in the file.
708          self.__cur_field = 0          self.__cur_field = 0
         clazz = layer.GetClassification()  
         field = clazz.GetField()  
709    
710          self.fields.Append("<None>")          self.fields.Append("<None>")
711          self.fields.SetClientData(0, None)  
712            if self.originalClass.GetFieldType() is None:
713                self.fields.SetClientData(0, copy.deepcopy(self.originalClass))
714            else:
715                self.fields.SetClientData(0, None)
716    
717          for i in range(self.num_cols):          for i in range(self.num_cols):
718              type, name, len, decc = layer.table.field_info(i)              name = layer.table.Column(i).name
719              self.fields.Append(name)              self.fields.Append(name)
720    
721              if name == field:              if name == field:
722                  self.__cur_field = i + 1                  self.__cur_field = i + 1
723                  self.fields.SetClientData(i + 1, clazz)                  self.fields.SetClientData(i + 1,
724                                              copy.deepcopy(self.originalClass))
725              else:              else:
726                  self.fields.SetClientData(i + 1, None)                  self.fields.SetClientData(i + 1, None)
727    
         self.fields.SetSelection(self.__cur_field)  
728    
729          propertyBox.Add(self.fields, 1, wxGROW|wxALL, 4)          self.fieldTypeText = wxStaticText(panel, -1, "")
         EVT_COMBOBOX(self, ID_PROPERTY_SELECT, self._OnFieldSelect)  
730    
731          topBox.Add(propertyBox, 0, wxGROW, 4)          button_gen = wxButton(panel, ID_PROPERTY_GENCLASS, _("Generate Class"))
732    
733          #          button_add = wxButton(panel, ID_PROPERTY_ADD, _("Add"))
734          # Classification data table          button_moveup = wxButton(panel, ID_PROPERTY_MOVEUP, _("Move Up"))
735            button_movedown = wxButton(panel, ID_PROPERTY_MOVEDOWN, _("Move Down"))
736            button_edit = wxButton(panel, ID_PROPERTY_EDITSYM, _("Edit Symbol"))
737            button_remove = wxButton(panel, ID_PROPERTY_REMOVE, _("Remove"))
738    
739    
740            button_try = wxButton(panel, ID_PROPERTY_TRY, _("Try"))
741            button_revert = wxButton(panel, ID_PROPERTY_REVERT, _("Revert"))
742            button_ok = wxButton(panel, wxID_OK, _("OK"))
743            button_ok.SetDefault()
744            button_close = wxButton(panel, wxID_CANCEL, _("Close"))
745    
746            self.classGrid = ClassGrid(panel, self)
747    
748            # calling __SelectField after creating the classGrid fills in the
749            # grid with the correct information
750            self.fields.SetSelection(self.__cur_field)
751            self.__SelectField(self.__cur_field, group = group)
752    
753            ############################
754            # Layout the controls
755          #          #
756    
757          controlBox = wxBoxSizer(wxHORIZONTAL)          topBox = wxBoxSizer(wxVERTICAL)
758          self.classGrid = ClassGrid(self)          panelBox = wxBoxSizer(wxVERTICAL)
759    
760          self.__SetGridTable(self.__cur_field)          sizer = wxBoxSizer(wxHORIZONTAL)
761            sizer.Add(wxStaticText(panel, -1, _("Title: ")),
762                0, wxALIGN_LEFT | wxALL | wxALIGN_CENTER_VERTICAL, 4)
763            sizer.Add(text_title, 1, wxGROW, 0)
764    
765          controlBox.Add(self.classGrid, 1, wxGROW, 0)          panelBox.Add(sizer, 0, wxGROW, 4)
766    
767            panelBox.Add(wxStaticText(panel, -1,
768                                    _("Type: %s") % layer.ShapeType()),
769                0, wxALIGN_LEFT | wxALL, 4)
770    
771            classBox = wxStaticBoxSizer(
772                        wxStaticBox(panel, -1, _("Classification")), wxVERTICAL)
773    
774    
775            sizer = wxBoxSizer(wxHORIZONTAL)
776            sizer.Add(wxStaticText(panel, ID_PROPERTY_FIELDTEXT, _("Field: ")),
777                0, wxALIGN_LEFT | wxALIGN_CENTER_VERTICAL | wxALL, 4)
778            sizer.Add(self.fields, 1, wxGROW | wxALL, 4)
779    
780            classBox.Add(sizer, 0, wxGROW, 4)
781    
782            classBox.Add(self.fieldTypeText, 0,
783                         wxGROW | wxALIGN_LEFT | wxALL | wxADJUST_MINSIZE, 4)
784    
785            controlBox = wxBoxSizer(wxHORIZONTAL)
786          controlButtonBox = wxBoxSizer(wxVERTICAL)          controlButtonBox = wxBoxSizer(wxVERTICAL)
         controlButtonBox.Add(wxButton(self, ID_CLASSIFY_ADD,  
             _("Add")), 0, wxGROW | wxALL, 4)  
         controlButtonBox.Add(wxButton(self, ID_CLASSIFY_GENRANGE,  
             _("Generate Ranges")), 0, wxGROW | wxALL, 4)  
   
         controlButtonBox.Add(wxButton(self, ID_CLASSIFY_MOVEUP,  
             _("Move Up")), 0, wxGROW | wxALL, 4)  
         controlButtonBox.Add(wxButton(self, ID_CLASSIFY_MOVEDOWN,  
             _("Move Down")), 0, wxGROW | wxALL, 4)  
787    
788          controlButtonBox.Add(wxButton(self, ID_CLASSIFY_REMOVE,          controlButtonBox.Add(button_gen, 0, wxGROW|wxALL, 4)
789              _("Remove")), 0, wxGROW | wxALL | wxALIGN_BOTTOM, 4)          controlButtonBox.Add(button_add, 0, wxGROW|wxALL, 4)
790            controlButtonBox.Add(button_moveup, 0, wxGROW|wxALL, 4)
791            controlButtonBox.Add(button_movedown, 0, wxGROW|wxALL, 4)
792            controlButtonBox.Add(button_edit, 0, wxGROW|wxALL, 4)
793            controlButtonBox.Add(60, 20, 0, wxGROW|wxALL|wxALIGN_BOTTOM, 4)
794            controlButtonBox.Add(button_remove, 0, wxGROW|wxALL|wxALIGN_BOTTOM, 4)
795    
796            controlBox.Add(self.classGrid, 1, wxGROW, 0)
797          controlBox.Add(controlButtonBox, 0, wxGROW, 10)          controlBox.Add(controlButtonBox, 0, wxGROW, 10)
         topBox.Add(controlBox, 1, wxGROW, 10)  
798    
799          EVT_BUTTON(self, ID_CLASSIFY_ADD, self._OnAdd)          classBox.Add(controlBox, 1, wxGROW, 10)
800          EVT_BUTTON(self, ID_CLASSIFY_REMOVE, self._OnRemove)          panelBox.Add(classBox, 1, wxGROW, 0)
         EVT_BUTTON(self, ID_CLASSIFY_GENRANGE, self._OnGenRange)  
         EVT_BUTTON(self, ID_CLASSIFY_MOVEUP, self._OnMoveUp)  
         EVT_BUTTON(self, ID_CLASSIFY_MOVEDOWN, self._OnMoveDown)  
801    
         #  
         # Control buttons:  
         #  
         buttonBox = wxBoxSizer(wxHORIZONTAL)  
         buttonBox.Add(wxButton(self, ID_CLASSIFY_OK, _("OK")),  
                       0, wxALL, 4)  
         buttonBox.Add(wxButton(self, ID_CLASSIFY_CANCEL, _("Cancel")),  
                       0, wxALL, 4)  
         topBox.Add(buttonBox, 0, wxALIGN_CENTER_HORIZONTAL|wxALIGN_BOTTOM, 10)  
   
         EVT_BUTTON(self, ID_CLASSIFY_OK, self._OnOK)  
         EVT_BUTTON(self, ID_CLASSIFY_CANCEL, self._OnCancel)  
802    
803            buttonBox = wxBoxSizer(wxHORIZONTAL)
804            buttonBox.Add(button_try, 0, wxALL, 4)
805            buttonBox.Add(60, 20, 0, wxALL, 4)
806            buttonBox.Add(button_revert, 0, wxALL, 4)
807            buttonBox.Add(60, 20, 0, wxALL, 4)
808            buttonBox.Add(button_ok, 0, wxALL, 4)
809            buttonBox.Add(60, 20, 0, wxALL, 4)
810            buttonBox.Add(button_close, 0, wxALL, 4)
811            panelBox.Add(buttonBox, 0,
812                wxALL|wxALIGN_CENTER_HORIZONTAL|wxALIGN_BOTTOM, 0)
813    
814            panel.SetAutoLayout(True)
815            panel.SetSizer(panelBox)
816            panelBox.Fit(panel)
817            panelBox.SetSizeHints(panel)
818    
819            topBox.Add(panel, 1, wxGROW | wxALL, 4)
820    
821          self.SetAutoLayout(true)          self.SetAutoLayout(True)
822          self.SetSizer(topBox)          self.SetSizer(topBox)
823          topBox.Fit(self)          topBox.Fit(self)
824          topBox.SetSizeHints(self)          topBox.SetSizeHints(self)
825            self.Layout()
826    
827      def __BuildClassification(self, fieldIndex):          ###########
828    
829          clazz = Classification()          EVT_CHOICE(self, ID_PROPERTY_SELECT, self._OnFieldSelect)
830          fieldName = self.fields.GetString(fieldIndex)          EVT_TEXT(self, ID_PROPERTY_TITLE, self._OnTitleChanged)
831          fieldType = self.layer.GetFieldType(fieldName)          EVT_BUTTON(self, wxID_OK, self._OnOK)
832            EVT_BUTTON(self, ID_PROPERTY_TRY, self._OnTry)
833            EVT_BUTTON(self, wxID_CANCEL, self._OnCloseBtn)
834            EVT_BUTTON(self, ID_PROPERTY_REVERT, self._OnRevert)
835    
836            EVT_BUTTON(self, ID_PROPERTY_ADD, self._OnAdd)
837            EVT_BUTTON(self, ID_PROPERTY_EDITSYM, self._OnEditSymbol)
838            EVT_BUTTON(self, ID_PROPERTY_REMOVE, self._OnRemove)
839            EVT_BUTTON(self, ID_PROPERTY_GENCLASS, self._OnGenClass)
840            EVT_BUTTON(self, ID_PROPERTY_MOVEUP, self._OnMoveUp)
841            EVT_BUTTON(self, ID_PROPERTY_MOVEDOWN, self._OnMoveDown)
842    
843            ######################
844    
845            self.fields.SetFocus()
846            self.haveApplied = False
847    
848        def EditSymbol(self, row):
849            table = self.classGrid.GetTable()
850            prop = table.GetValueAsCustom(row, COL_SYMBOL, None)
851    
852            # get a new ClassGroupProperties object and copy the
853            # values over to our current object
854            propDlg = SelectPropertiesDialog(NULL, prop, self.layer.ShapeType())
855    
856            self.Enable(False)
857            if propDlg.ShowModal() == wxID_OK:
858                new_prop = propDlg.GetClassGroupProperties()
859                table.SetValueAsCustom(row, COL_SYMBOL, None, new_prop)
860            self.Enable(True)
861            propDlg.Destroy()
862            
863        def _SetClassification(self, clazz):
864            
865            self.fields.SetClientData(self.__cur_field, clazz)
866            self.classGrid.GetTable().SetClassification(clazz)
867    
868        def __BuildClassification(self, fieldIndex, copyClass = False):
869    
870    #       numRows = self.classGrid.GetNumberRows()
871    #       assert numRows > 0  # there should always be a default row
872    
873    #       clazz = Classification()
874            if fieldIndex == 0:
875                fieldName = None
876                fieldType = None
877            else:
878                fieldName = self.fields.GetString(fieldIndex)
879                fieldType = self.layer.GetFieldType(fieldName)
880    
881            clazz = self.classGrid.GetTable().GetClassification()
882    
883            if copyClass:
884                clazz = copy.deepcopy(clazz)
885    
886          clazz.SetField(fieldName)          clazz.SetField(fieldName)
887          clazz.SetFieldType(fieldType)          clazz.SetFieldType(fieldType)
888    
         numRows = self.classGrid.GetNumberRows()  
889    
890          assert(numRows > 0) # there should always be a default row  #       table = self.classGrid.GetTable()
891    #       clazz.SetDefaultGroup(table.GetClassGroup(0))
892    
893          table = self.classGrid.GetTable()  #       for i in range(1, numRows):
894          clazz.SetDefaultGroup(table.GetClassGroup(0))  #           clazz.AppendGroup(table.GetClassGroup(i))
   
         for i in range(1, numRows):  
             clazz.AddGroup(table.GetClassGroup(i))  
895    
896          return clazz          return clazz
897    
898      def __SetGridTable(self, fieldIndex):      def __SetGridTable(self, fieldIndex, group = None):
899    
900          clazz = self.fields.GetClientData(fieldIndex)          clazz = self.fields.GetClientData(fieldIndex)
901    
# Line 677  class Classifier(wxDialog): Line 903  class Classifier(wxDialog):
903              clazz = Classification()              clazz = Classification()
904              clazz.SetDefaultGroup(              clazz.SetDefaultGroup(
905                  ClassGroupDefault(                  ClassGroupDefault(
906                      self.layer.GetClassification().GetDefaultGroup().GetProperties()))                      self.layer.GetClassification().
907                                   GetDefaultGroup().GetProperties()))
908    
909              fieldName = self.fields.GetString(fieldIndex)              fieldName = self.fields.GetString(fieldIndex)
910              fieldType = self.layer.GetFieldType(fieldName)              fieldType = self.layer.GetFieldType(fieldName)
911              clazz.SetFieldType(fieldType)              clazz.SetFieldType(fieldType)
912                                    
913          self.classGrid.CreateTable(clazz, self.layer.ShapeType())          self.classGrid.CreateTable(clazz, self.layer.ShapeType(), group)
914    
915      def _OnFieldSelect(self, event):      def __SetFieldTypeText(self, fieldIndex):
916          clazz = self.__BuildClassification(self.__cur_field)          fieldName = self.fields.GetString(fieldIndex)
917          self.fields.SetClientData(self.__cur_field, clazz)          fieldType = self.layer.GetFieldType(fieldName)
918    
919          self.__cur_field = self.fields.GetSelection()          assert Classifier.type2string.has_key(fieldType)
         self.__SetGridTable(self.__cur_field)  
920    
921      def _OnOK(self, event):          text = Classifier.type2string[fieldType]
922    
923            self.fieldTypeText.SetLabel(_("Data Type: %s") % text)
924    
925        def __SelectField(self, newIndex, oldIndex = -1, group = None):
926            """This method assumes that the current selection for the
927            combo has already been set by a call to SetSelection().
928            """
929    
930            assert oldIndex >= -1
931    
932            if oldIndex != -1:
933                clazz = self.__BuildClassification(oldIndex)
934                self.fields.SetClientData(oldIndex, clazz)
935    
936            self.__SetGridTable(newIndex, group)
937    
938            self.__EnableButtons(EB_SELECT_FIELD, newIndex != 0)
939    
940            self.__SetFieldTypeText(newIndex)
941    
942        def __SetTitle(self, title):
943            if title != "":
944                title = ": " + title
945    
946            self.SetTitle(_("Layer Properties") + title)
947    
948        def _OnEditSymbol(self, event):
949            sel = self.classGrid.GetCurrentSelection()
950    
951            if len(sel) == 1:
952                self.EditSymbol(sel[0])
953    
954        def _OnFieldSelect(self, event):
955            index = self.fields.GetSelection()
956            self.__SelectField(index, self.__cur_field)
957            self.__cur_field = index
958    
959        def _OnTry(self, event):
960          """Put the data from the table into a new Classification and hand          """Put the data from the table into a new Classification and hand
961             it to the layer.             it to the layer.
962          """          """
# Line 703  class Classifier(wxDialog): Line 967  class Classifier(wxDialog):
967          # only build the classification if there wasn't one to          # only build the classification if there wasn't one to
968          # to begin with or it has been modified          # to begin with or it has been modified
969          #          #
970            self.classGrid.SaveEditControlValue()
971          if clazz is None or self.classGrid.GetTable().IsModified():          if clazz is None or self.classGrid.GetTable().IsModified():
972              clazz = self.__BuildClassification(self.__cur_field)              clazz = self.__BuildClassification(self.__cur_field, True)
   
         clazz.SetLayer(self.layer)  
973    
974          self.layer.SetClassification(clazz)          self.layer.SetClassification(clazz)
975    
976          self.EndModal(wxID_OK)          self.haveApplied = True
977    
978      def _OnCancel(self, event):      def _OnOK(self, event):
979          """Do nothing. The layer's current classification stays the same."""          self._OnTry(event)
980          self.EndModal(wxID_CANCEL)          self.Close()
981    
982        def OnClose(self, event):
983            NonModalDialog.OnClose(self, event)
984    
985        def _OnCloseBtn(self, event):
986            """Close is similar to Cancel except that any changes that were
987            made and applied remain applied, but the currently displayed
988            classification is discarded.
989            """
990    
991            self.Close()
992    
993        def _OnRevert(self, event):
994            """The layer's current classification stays the same."""
995            if self.haveApplied:
996                self.layer.SetClassification(self.originalClass)
997    
998            #self.Close()
999    
1000      def _OnAdd(self, event):      def _OnAdd(self, event):
1001          self.classGrid.AppendRows()          self.classGrid.AppendRows()
# Line 722  class Classifier(wxDialog): Line 1003  class Classifier(wxDialog):
1003      def _OnRemove(self, event):      def _OnRemove(self, event):
1004          self.classGrid.DeleteSelectedRows()          self.classGrid.DeleteSelectedRows()
1005    
1006      def _OnGenRange(self, event):      def _OnGenClass(self, event):
1007          print "Classifier._OnGenRange()"  
1008            self.genDlg = ClassGenDialog(self, self.layer,
1009                              self.fields.GetString(self.__cur_field))
1010    
1011            EVT_CLOSE(self.genDlg, self._OnGenDialogClose)
1012    
1013            self.__EnableButtons(EB_GEN_CLASS, False)
1014    
1015            self.genDlg.Show()
1016    
1017        def _OnGenDialogClose(self, event):
1018            self.genDlg.Destroy()
1019            self.__EnableButtons(EB_GEN_CLASS, True)
1020    
1021      def _OnMoveUp(self, event):      def _OnMoveUp(self, event):
1022          sel = self.classGrid.GetCurrentSelection()          sel = self.classGrid.GetCurrentSelection()
# Line 738  class Classifier(wxDialog): Line 1031  class Classifier(wxDialog):
1031                  table.SetClassGroup(i, x)                  table.SetClassGroup(i, x)
1032                  self.classGrid.ClearSelection()                  self.classGrid.ClearSelection()
1033                  self.classGrid.SelectRow(i - 1)                  self.classGrid.SelectRow(i - 1)
1034                    self.classGrid.MakeCellVisible(i - 1, 0)
1035    
1036      def _OnMoveDown(self, event):      def _OnMoveDown(self, event):
1037          sel = self.classGrid.GetCurrentSelection()          sel = self.classGrid.GetCurrentSelection()
# Line 752  class Classifier(wxDialog): Line 1046  class Classifier(wxDialog):
1046                  table.SetClassGroup(i + 1, x)                  table.SetClassGroup(i + 1, x)
1047                  self.classGrid.ClearSelection()                  self.classGrid.ClearSelection()
1048                  self.classGrid.SelectRow(i + 1)                  self.classGrid.SelectRow(i + 1)
1049                    self.classGrid.MakeCellVisible(i + 1, 0)
1050    
1051        def _OnTitleChanged(self, event):
1052            obj = event.GetEventObject()
1053    
1054            self.layer.SetTitle(obj.GetValue())
1055            self.__SetTitle(self.layer.Title())
1056    
1057            self.__EnableButtons(EB_LAYER_TITLE, self.layer.Title() != "")
1058    
1059        def __EnableButtons(self, case, enable):
1060    
1061            if case == EB_LAYER_TITLE:  
1062                list = (wxID_OK,
1063                        wxID_CANCEL)
1064    
1065            elif case == EB_SELECT_FIELD:
1066                list = (ID_PROPERTY_GENCLASS,
1067                        ID_PROPERTY_ADD,
1068                        ID_PROPERTY_MOVEUP,
1069                        ID_PROPERTY_MOVEDOWN,
1070                        ID_PROPERTY_EDITSYM,
1071                        ID_PROPERTY_REMOVE)
1072    
1073            elif case == EB_GEN_CLASS:
1074                list = (ID_PROPERTY_SELECT,
1075                        ID_PROPERTY_FIELDTEXT,
1076                        ID_PROPERTY_GENCLASS,
1077                        ID_PROPERTY_EDITSYM)
1078    
1079            for id in list:
1080                self.FindWindowById(id).Enable(enable)
1081    
 ID_SELPROP_OK = 4001  
 ID_SELPROP_CANCEL = 4002  
1082  ID_SELPROP_SPINCTRL = 4002  ID_SELPROP_SPINCTRL = 4002
1083  ID_SELPROP_PREVIEW = 4003  ID_SELPROP_PREVIEW = 4003
1084  ID_SELPROP_STROKECLR = 4004  ID_SELPROP_STROKECLR = 4004
1085  ID_SELPROP_FILLCLR = 4005  ID_SELPROP_FILLCLR = 4005
1086    ID_SELPROP_STROKECLRTRANS = 4006
1087    ID_SELPROP_FILLCLRTRANS = 4007
1088    
1089  class SelectPropertiesDialog(wxDialog):  class SelectPropertiesDialog(wxDialog):
1090    
1091      def __init__(self, parent, prop, shapeType):      def __init__(self, parent, prop, shapeType):
1092          wxDialog.__init__(self, parent, -1, _("Select Properties"),          wxDialog.__init__(self, parent, -1, _("Select Properties"),
1093                            style = wxRESIZE_BORDER)                            style = wxDEFAULT_DIALOG_STYLE | wxRESIZE_BORDER)
1094    
1095          self.prop = ClassGroupProperties(prop)          self.prop = ClassGroupProperties(prop)
1096    
# Line 777  class SelectPropertiesDialog(wxDialog): Line 1102  class SelectPropertiesDialog(wxDialog):
1102          previewBox = wxBoxSizer(wxVERTICAL)          previewBox = wxBoxSizer(wxVERTICAL)
1103          previewBox.Add(wxStaticText(self, -1, _("Preview:")),          previewBox.Add(wxStaticText(self, -1, _("Preview:")),
1104              0, wxALIGN_LEFT | wxALL, 4)              0, wxALIGN_LEFT | wxALL, 4)
1105          self.previewer = ClassDataPreviewer(None, self.prop, shapeType,  
1106                                              self, ID_SELPROP_PREVIEW, (40, 40))          self.previewWin = ClassGroupPropertiesCtrl(
1107          previewBox.Add(self.previewer, 1, wxGROW, 15)              self, ID_SELPROP_PREVIEW, self.prop, shapeType,
1108                (40, 40), wxSIMPLE_BORDER)
1109    
1110            self.previewWin.AllowEdit(False)
1111    
1112            previewBox.Add(self.previewWin, 1, wxGROW | wxALL, 4)
1113    
1114          itemBox.Add(previewBox, 1, wxALIGN_LEFT | wxALL | wxGROW, 0)          itemBox.Add(previewBox, 1, wxALIGN_LEFT | wxALL | wxGROW, 0)
1115    
1116          # control box          # control box
1117          ctrlBox = wxBoxSizer(wxVERTICAL)          ctrlBox = wxBoxSizer(wxVERTICAL)
1118          ctrlBox.Add(  
1119              wxButton(self, ID_SELPROP_STROKECLR, "Change Line Color"),          lineColorBox = wxBoxSizer(wxHORIZONTAL)
1120              0, wxALIGN_CENTER_HORIZONTAL | wxALL | wxGROW, 4)          button = wxButton(self, ID_SELPROP_STROKECLR, _("Change Line Color"))
1121            button.SetFocus()
1122            lineColorBox.Add(button, 1, wxALL | wxGROW, 4)
1123          EVT_BUTTON(self, ID_SELPROP_STROKECLR, self._OnChangeLineColor)          EVT_BUTTON(self, ID_SELPROP_STROKECLR, self._OnChangeLineColor)
1124    
1125            lineColorBox.Add(
1126                wxButton(self, ID_SELPROP_STROKECLRTRANS, _("Transparent")),
1127                1, wxALL | wxGROW, 4)
1128            EVT_BUTTON(self, ID_SELPROP_STROKECLRTRANS,
1129                       self._OnChangeLineColorTrans)
1130    
1131            ctrlBox.Add(lineColorBox, 0,
1132                        wxALIGN_CENTER_HORIZONTAL | wxALL | wxGROW, 4)
1133    
1134          if shapeType != SHAPETYPE_ARC:          if shapeType != SHAPETYPE_ARC:
1135              ctrlBox.Add(              fillColorBox = wxBoxSizer(wxHORIZONTAL)
1136                  wxButton(self, ID_SELPROP_FILLCLR, "Change Fill Color"),              fillColorBox.Add(
1137                  0, wxALIGN_LEFT | wxALL | wxGROW, 4)                  wxButton(self, ID_SELPROP_FILLCLR, _("Change Fill Color")),
1138                    1, wxALL | wxGROW, 4)
1139              EVT_BUTTON(self, ID_SELPROP_FILLCLR, self._OnChangeFillColor)              EVT_BUTTON(self, ID_SELPROP_FILLCLR, self._OnChangeFillColor)
1140                fillColorBox.Add(
1141                    wxButton(self, ID_SELPROP_FILLCLRTRANS, _("Transparent")),
1142                    1, wxALL | wxGROW, 4)
1143                EVT_BUTTON(self, ID_SELPROP_FILLCLRTRANS,
1144                           self._OnChangeFillColorTrans)
1145                ctrlBox.Add(fillColorBox, 0,
1146                            wxALIGN_CENTER_HORIZONTAL | wxALL | wxGROW, 4)
1147    
1148          spinBox = wxBoxSizer(wxHORIZONTAL)          spinBox = wxBoxSizer(wxHORIZONTAL)
1149          spinBox.Add(wxStaticText(self, -1, _("Line Width: ")),          spinBox.Add(wxStaticText(self, -1, _("Line Width: ")),
# Line 812  class SelectPropertiesDialog(wxDialog): Line 1161  class SelectPropertiesDialog(wxDialog):
1161          itemBox.Add(ctrlBox, 0, wxALIGN_RIGHT | wxALL | wxGROW, 0)          itemBox.Add(ctrlBox, 0, wxALIGN_RIGHT | wxALL | wxGROW, 0)
1162          topBox.Add(itemBox, 1, wxALIGN_LEFT | wxALL | wxGROW, 0)          topBox.Add(itemBox, 1, wxALIGN_LEFT | wxALL | wxGROW, 0)
1163    
   
1164          #          #
1165          # Control buttons:          # Control buttons:
1166          #          #
1167          buttonBox = wxBoxSizer(wxHORIZONTAL)          buttonBox = wxBoxSizer(wxHORIZONTAL)
1168          buttonBox.Add(wxButton(self, ID_CLASSIFY_OK, _("OK")),          button_ok = wxButton(self, wxID_OK, _("OK"))
1169                        0, wxALL, 4)          button_ok.SetDefault()
1170          buttonBox.Add(wxButton(self, ID_CLASSIFY_CANCEL, _("Cancel")),          buttonBox.Add(button_ok, 0, wxALL, 4)
1171            buttonBox.Add(wxButton(self, wxID_CANCEL, _("Cancel")),
1172                        0, wxALL, 4)                        0, wxALL, 4)
1173          topBox.Add(buttonBox, 0, wxALIGN_CENTER_HORIZONTAL|wxALIGN_BOTTOM, 10)          topBox.Add(buttonBox, 0, wxALIGN_CENTER_HORIZONTAL|wxALIGN_BOTTOM, 10)
1174                                                                                                                                                                    
1175          EVT_BUTTON(self, ID_SELPROP_OK, self._OnOK)          #EVT_BUTTON(self, wxID_OK, self._OnOK)
1176          EVT_BUTTON(self, ID_SELPROP_CANCEL, self._OnCancel)          #EVT_BUTTON(self, ID_SELPROP_CANCEL, self._OnCancel)
1177                                                                                                                                                                    
1178          self.SetAutoLayout(true)          self.SetAutoLayout(True)
1179          self.SetSizer(topBox)          self.SetSizer(topBox)
1180          topBox.Fit(self)          topBox.Fit(self)
1181          topBox.SetSizeHints(self)          topBox.SetSizeHints(self)
1182    
1183      def _OnOK(self, event):      def OnOK(self, event):
1184          self.EndModal(wxID_OK)          self.EndModal(wxID_OK)
1185    
1186      def _OnCancel(self, event):      def OnCancel(self, event):
1187          self.EndModal(wxID_CANCEL)          self.EndModal(wxID_CANCEL)
1188    
1189      def _OnSpin(self, event):      def _OnSpin(self, event):
1190          self.prop.SetLineWidth(self.spinCtrl.GetValue())          self.prop.SetLineWidth(self.spinCtrl.GetValue())
1191          self.previewer.Refresh()          self.previewWin.Refresh()
1192    
1193      def __GetColor(self, cur):      def __GetColor(self, cur):
1194          dialog = wxColourDialog(self)          dialog = wxColourDialog(self)
1195          dialog.GetColourData().SetColour(Color2wxColour(cur))          if cur is not Color.Transparent:
1196                dialog.GetColourData().SetColour(Color2wxColour(cur))
1197    
1198          ret = None          ret = None
1199          if dialog.ShowModal() == wxID_OK:          if dialog.ShowModal() == wxID_OK:
1200              ret = wxColour2Color(dialog.GetColourData().GetColour())              ret = wxColour2Color(dialog.GetColourData().GetColour())
# Line 856  class SelectPropertiesDialog(wxDialog): Line 1207  class SelectPropertiesDialog(wxDialog):
1207          clr = self.__GetColor(self.prop.GetLineColor())          clr = self.__GetColor(self.prop.GetLineColor())
1208          if clr is not None:          if clr is not None:
1209              self.prop.SetLineColor(clr)              self.prop.SetLineColor(clr)
1210          self.previewer.Refresh() # XXX: work around, see ClassDataPreviewer          self.previewWin.Refresh() # XXX: work around, see ClassDataPreviewer
1211    
1212        def _OnChangeLineColorTrans(self, event):
1213            self.prop.SetLineColor(Color.Transparent)
1214            self.previewWin.Refresh() # XXX: work around, see ClassDataPreviewer
1215            
1216      def _OnChangeFillColor(self, event):      def _OnChangeFillColor(self, event):
1217          clr = self.__GetColor(self.prop.GetFill())          clr = self.__GetColor(self.prop.GetFill())
1218          if clr is not None:          if clr is not None:
1219              self.prop.SetFill(clr)              self.prop.SetFill(clr)
1220          self.previewer.Refresh() # XXX: work around, see ClassDataPreviewer          self.previewWin.Refresh() # XXX: work around, see ClassDataPreviewer
1221    
1222        def _OnChangeFillColorTrans(self, event):
1223            self.prop.SetFill(Color.Transparent)
1224            self.previewWin.Refresh() # XXX: work around, see ClassDataPreviewer
1225    
1226      def GetClassGroupProperties(self):      def GetClassGroupProperties(self):
1227          return self.prop          return self.prop
1228    
1229    
1230  class ClassDataPreviewer(wxWindow):  class ClassDataPreviewWindow(wxWindow):
1231    
1232      def __init__(self, rect, prop, shapeType,      def __init__(self, rect, prop, shapeType,
1233                         parent = None, id = -1, size = wxDefaultSize):                         parent = None, id = -1, size = wxDefaultSize):
1234          if parent is not None:          if parent is not None:
1235              wxWindow.__init__(self, parent, id, size=size)              wxWindow.__init__(self, parent, id, (0, 0), size)
1236              EVT_PAINT(self, self._OnPaint)              EVT_PAINT(self, self._OnPaint)
1237    
1238          self.rect = rect          self.rect = rect
1239    
1240          self.prop = prop          self.prop = prop
1241          self.shapeType = shapeType          self.shapeType = shapeType
1242            self.previewer = ClassDataPreviewer()
1243    
1244        def GetProperties():
1245            return self.prop
1246    
1247      def _OnPaint(self, event):      def _OnPaint(self, event):
1248          dc = wxPaintDC(self)          dc = wxPaintDC(self)
# Line 886  class ClassDataPreviewer(wxWindow): Line 1250  class ClassDataPreviewer(wxWindow):
1250          # XXX: this doesn't seem to be having an effect:          # XXX: this doesn't seem to be having an effect:
1251          dc.DestroyClippingRegion()          dc.DestroyClippingRegion()
1252    
1253          self.Draw(dc, None)          if self.rect is None:
1254                w, h = self.GetSize()
1255                rect = wxRect(0, 0, w, h)
1256            else:
1257                rect = self.rect
1258    
1259            self.previewer.Draw(dc, rect, self.prop, self.shapeType)
1260    
1261    class ClassDataPreviewer:
1262    
1263      def Draw(self, dc, rect, prop = None, shapeType = None):      def Draw(self, dc, rect, prop, shapeType):
1264    
1265          if prop is None: prop = self.prop          assert dc is not None
1266          if shapeType is None: shapeType = self.shapeType          assert isinstance(prop, ClassGroupProperties)
1267    
1268          if rect is None:          if rect is None:
1269              x = y = 0              x = 0
1270              w, h = self.GetClientSizeTuple()              y = 0
1271                w, h = dc.GetSize()
1272          else:          else:
1273              x = rect.GetX()              x = rect.GetX()
1274              y = rect.GetY()              y = rect.GetY()
# Line 903  class ClassDataPreviewer(wxWindow): Line 1276  class ClassDataPreviewer(wxWindow):
1276              h = rect.GetHeight()              h = rect.GetHeight()
1277    
1278          stroke = prop.GetLineColor()          stroke = prop.GetLineColor()
1279          if stroke is Color.None:          if stroke is Color.Transparent:
1280              pen = wxTRANSPARENT_PEN              pen = wxTRANSPARENT_PEN
1281          else:          else:
1282              pen = wxPen(Color2wxColour(stroke),              pen = wxPen(Color2wxColour(stroke),
# Line 911  class ClassDataPreviewer(wxWindow): Line 1284  class ClassDataPreviewer(wxWindow):
1284                          wxSOLID)                          wxSOLID)
1285    
1286          stroke = prop.GetFill()          stroke = prop.GetFill()
1287          if stroke is Color.None:          if stroke is Color.Transparent:
1288              brush = wxTRANSPARENT_BRUSH              brush = wxTRANSPARENT_BRUSH
1289          else:          else:
1290              brush = wxBrush(Color2wxColour(stroke), wxSOLID)              brush = wxBrush(Color2wxColour(stroke), wxSOLID)
# Line 925  class ClassDataPreviewer(wxWindow): Line 1298  class ClassDataPreviewer(wxWindow):
1298                             wxPoint(x + w/2, y + h/4*3),                             wxPoint(x + w/2, y + h/4*3),
1299                             wxPoint(x + w, y)])                             wxPoint(x + w, y)])
1300    
1301          elif shapeType == SHAPETYPE_POINT or \          elif shapeType == SHAPETYPE_POINT:
              shapeType == SHAPETYPE_POLYGON:  
1302    
1303              dc.DrawCircle(x + w/2, y + h/2,              dc.DrawCircle(x + w/2, y + h/2,
1304                            (min(w, h) - prop.GetLineWidth())/2)                            (min(w, h) - prop.GetLineWidth())/2)
1305    
1306            elif shapeType == SHAPETYPE_POLYGON:
1307                dc.DrawRectangle(x, y, w, h)
1308    
1309  class ClassRenderer(wxPyGridCellRenderer):  class ClassRenderer(wxPyGridCellRenderer):
1310    
1311      def __init__(self, shapeType):      def __init__(self, shapeType):
1312          wxPyGridCellRenderer.__init__(self)          wxPyGridCellRenderer.__init__(self)
1313          self.previewer = ClassDataPreviewer(None, None, shapeType)          self.shapeType = shapeType
1314            self.previewer = ClassDataPreviewer()
1315    
1316      def Draw(self, grid, attr, dc, rect, row, col, isSelected):      def Draw(self, grid, attr, dc, rect, row, col, isSelected):
1317          data = grid.GetTable().GetValueAsCustom(row, col, None)          data = grid.GetTable().GetClassGroup(row)
1318    
1319          dc.SetClippingRegion(rect.GetX(), rect.GetY(),          dc.SetClippingRegion(rect.GetX(), rect.GetY(),
1320                               rect.GetWidth(), rect.GetHeight())                               rect.GetWidth(), rect.GetHeight())
# Line 948  class ClassRenderer(wxPyGridCellRenderer Line 1324  class ClassRenderer(wxPyGridCellRenderer
1324                           rect.GetWidth(), rect.GetHeight())                           rect.GetWidth(), rect.GetHeight())
1325    
1326          if not isinstance(data, ClassGroupMap):          if not isinstance(data, ClassGroupMap):
1327              self.previewer.Draw(dc, rect, data.GetProperties())              self.previewer.Draw(dc, rect, data.GetProperties(), self.shapeType)
1328    
1329          if isSelected:          if isSelected:
1330              dc.SetPen(wxPen(wxColour(0 * 255, 0 * 255, 0 * 255),              dc.SetPen(wxPen(wxBLACK, 1, wxSOLID))
                       4, wxSOLID))  
1331              dc.SetBrush(wxTRANSPARENT_BRUSH)              dc.SetBrush(wxTRANSPARENT_BRUSH)
1332    
1333              dc.DrawRectangle(rect.GetX(), rect.GetY(),              dc.DrawRectangle(rect.GetX(), rect.GetY(),
1334                               rect.GetWidth(), rect.GetHeight())                               rect.GetWidth(), rect.GetHeight())
1335    
1336          dc.DestroyClippingRegion()          dc.DestroyClippingRegion()
1337    
1338    
1339    class ClassGroupPropertiesCtrl(wxWindow, wxControl):
1340    
1341        def __init__(self, parent, id, props, shapeType,
1342                     size = wxDefaultSize, style = 0):
1343    
1344            wxWindow.__init__(self, parent, id, size = size, style = style)
1345    
1346            self.SetProperties(props)
1347            self.SetShapeType(shapeType)
1348            self.AllowEdit(True)
1349    
1350            EVT_PAINT(self, self._OnPaint)
1351            EVT_LEFT_DCLICK(self, self._OnLeftDClick)
1352    
1353            self.previewer = ClassDataPreviewer()
1354    
1355        def _OnPaint(self, event):
1356            dc = wxPaintDC(self)
1357    
1358            # XXX: this doesn't seem to be having an effect:
1359            dc.DestroyClippingRegion()
1360    
1361            w, h = self.GetClientSize()
1362    
1363            self.previewer.Draw(dc,
1364                                wxRect(0, 0, w, h),
1365                                self.GetProperties(),
1366                                self.GetShapeType())
1367    
1368    
1369        def GetProperties(self):
1370            return self.props
1371    
1372        def SetProperties(self, props):
1373            self.props = props
1374            self.Refresh()
1375    
1376        def GetShapeType(self):
1377            return self.shapeType
1378    
1379        def SetShapeType(self, shapeType):
1380            self.shapeType = shapeType
1381            self.Refresh()
1382    
1383        def AllowEdit(self, allow):
1384            self.allowEdit = allow
1385    
1386        def DoEdit(self):
1387            if not self.allowEdit: return
1388    
1389            propDlg = SelectPropertiesDialog(NULL,
1390                                             self.GetProperties(),
1391                                             self.GetShapeType())
1392    
1393            if propDlg.ShowModal() == wxID_OK:
1394                new_prop = propDlg.GetClassGroupProperties()
1395                self.SetProperties(new_prop)
1396                self.Refresh()
1397    
1398            propDlg.Destroy()
1399    
1400        def _OnLeftDClick(self, event):
1401            self.DoEdit()
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