/[thuban]/trunk/thuban/Thuban/UI/classifier.py
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revision 476 by bh, Thu Mar 6 15:03:37 2003 UTC revision 935 by jonathan, Tue May 20 15:24:17 2003 UTC
# Line 18  from wxPython.wx import * Line 18  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, RasterLayer, \
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 56  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 65  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.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)          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 95  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 128  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 160  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 172  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 214  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 230  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      def Reset(self, clazz, shapeType):          self.clazz = None
273            self.__colAttr = {}
274    
275            self.SetView(view)
276    
277        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 249  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          self.tdata = []          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        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 285  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 314  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 347  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 356  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)  
   
                 return (conv(Str2Num(value[:i])), conv(Str2Num(value[i+1:])))  
500    
501          assert(False) # shouldn't get here          assert False  # shouldn't get here
502                        return (0,None)
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 429  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 451  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 462  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())  
569    
570                      self.__SetRow(row, ngroup)                      if changed:
571                            ngroup.SetLabel(group.GetLabel())
572                      mod = True                          self.SetClassGroup(row, ngroup)
573            else:
574                assert False # shouldn't be here
575          elif col == COL_LABEL:              pass
             group.SetLabel(value)  
             mod = True  
576    
577          if mod:          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            The table is considered modified if any rows are appended.
639            """
640    
641          old_len = len(self.tdata)          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    
         topBox = wxBoxSizer(wxVERTICAL)  
687    
688          topBox.Add(wxStaticText(self, -1, _("Layer: %s") % layer.Title()),          self.genDlg = None
             0, wxALIGN_LEFT | wxALL, 4)  
         topBox.Add(wxStaticText(self, -1, _("Type: %s") % layer.ShapeType()),  
             0, wxALIGN_LEFT | wxALL, 4)  
689    
690          propertyBox = wxBoxSizer(wxHORIZONTAL)          ############################
691          propertyBox.Add(wxStaticText(self, -1, _("Field: ")),          # Create the controls
692              0, wxALIGN_CENTER | wxALL, 4)          #
   
         self.fields = wxComboBox(self, 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  
         clazz = layer.GetClassification()  
         field = clazz.GetField()  
   
         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, clazz)  
             else:  
                 self.fields.SetClientData(i + 1, None)  
693    
694          self.fields.SetSelection(self.__cur_field)          panel = wxPanel(self, -1)
695    
696          propertyBox.Add(self.fields, 1, wxGROW|wxALL, 4)          text_title = wxTextCtrl(panel, ID_PROPERTY_TITLE, layer.Title())
697          EVT_COMBOBOX(self, ID_PROPERTY_SELECT, self._OnFieldSelect)          self.fieldTypeText = wxStaticText(panel, -1, "")
698    
699          topBox.Add(propertyBox, 0, wxGROW, 4)          if layer.HasClassification():
700                self.originalClass = self.layer.GetClassification()
701                field = self.originalClass.GetField()
702                fieldType = self.originalClass.GetFieldType()
703    
704          #              #
705          # Classification data table              # make field choice box
706                #
707                self.fields = wxChoice(panel, ID_PROPERTY_SELECT,)
708    
709                self.num_cols = layer.table.NumColumns()
710                # just assume the first field in case one hasn't been
711                # specified in the file.
712                self.__cur_field = 0
713    
714                self.fields.Append("<None>")
715    
716                if self.originalClass.GetFieldType() is None:
717                    self.fields.SetClientData(0, copy.deepcopy(self.originalClass))
718                else:
719                    self.fields.SetClientData(0, None)
720    
721                for i in range(self.num_cols):
722                    name = layer.table.Column(i).name
723                    self.fields.Append(name)
724    
725                    if name == field:
726                        self.__cur_field = i + 1
727                        self.fields.SetClientData(i + 1,
728                                                copy.deepcopy(self.originalClass))
729                    else:
730                        self.fields.SetClientData(i + 1, None)
731    
732                button_gen = wxButton(panel, ID_PROPERTY_GENCLASS,
733                    _("Generate Class"))
734                button_add = wxButton(panel, ID_PROPERTY_ADD,
735                    _("Add"))
736                button_moveup = wxButton(panel, ID_PROPERTY_MOVEUP,
737                    _("Move Up"))
738                button_movedown = wxButton(panel, ID_PROPERTY_MOVEDOWN,
739                    _("Move Down"))
740                button_edit = wxButton(panel, ID_PROPERTY_EDITSYM,
741                    _("Edit Symbol"))
742                button_remove = wxButton(panel, ID_PROPERTY_REMOVE,
743                    _("Remove"))
744    
745                self.classGrid = ClassGrid(panel, self)
746    
747                # calling __SelectField after creating the classGrid fills in the
748                # grid with the correct information
749                self.fields.SetSelection(self.__cur_field)
750                self.__SelectField(self.__cur_field, group = group)
751    
752            button_try = wxButton(panel, ID_PROPERTY_TRY, _("Try"))
753            button_revert = wxButton(panel, ID_PROPERTY_REVERT, _("Revert"))
754            button_ok = wxButton(panel, wxID_OK, _("OK"))
755            button_ok.SetDefault()
756            button_close = wxButton(panel, wxID_CANCEL, _("Close"))
757    
758            ############################
759            # Layout the controls
760          #          #
761    
762          controlBox = wxBoxSizer(wxHORIZONTAL)          topBox = wxBoxSizer(wxVERTICAL)
763          self.classGrid = ClassGrid(self)          panelBox = wxBoxSizer(wxVERTICAL)
764    
765          self.__SetGridTable(self.__cur_field)          sizer = wxBoxSizer(wxHORIZONTAL)
766            sizer.Add(wxStaticText(panel, -1, _("Title: ")),
767                0, wxALIGN_LEFT | wxALL | wxALIGN_CENTER_VERTICAL, 4)
768            sizer.Add(text_title, 1, wxGROW, 0)
769    
770          controlBox.Add(self.classGrid, 1, wxGROW, 0)          panelBox.Add(sizer, 0, wxGROW, 4)
771    
772          controlButtonBox = wxBoxSizer(wxVERTICAL)          if isinstance(layer, RasterLayer):
773          controlButtonBox.Add(wxButton(self, ID_CLASSIFY_ADD,              type = "Image"
774              _("Add")), 0, wxGROW | wxALL, 4)          else:
775          controlButtonBox.Add(wxButton(self, ID_CLASSIFY_GENRANGE,              type = layer.ShapeType()
             _("Generate Ranges")), 0, wxGROW | wxALL, 4)  
776    
777          controlButtonBox.Add(wxButton(self, ID_CLASSIFY_MOVEUP,          panelBox.Add(wxStaticText(panel, -1, _("Type: %s") % type),
778              _("Move Up")), 0, wxGROW | wxALL, 4)              0, wxALIGN_LEFT | wxALL, 4)
         controlButtonBox.Add(wxButton(self, ID_CLASSIFY_MOVEDOWN,  
             _("Move Down")), 0, wxGROW | wxALL, 4)  
779    
780          controlButtonBox.Add(wxButton(self, ID_CLASSIFY_REMOVE,          if layer.HasClassification():
             _("Remove")), 0, wxGROW | wxALL | wxALIGN_BOTTOM, 4)  
781    
782          controlBox.Add(controlButtonBox, 0, wxGROW, 10)              classBox = wxStaticBoxSizer(
783          topBox.Add(controlBox, 1, wxGROW, 10)                          wxStaticBox(panel, -1, _("Classification")), wxVERTICAL)
784    
         EVT_BUTTON(self, ID_CLASSIFY_ADD, self._OnAdd)  
         EVT_BUTTON(self, ID_CLASSIFY_REMOVE, self._OnRemove)  
         EVT_BUTTON(self, ID_CLASSIFY_GENRANGE, self._OnGenRange)  
         EVT_BUTTON(self, ID_CLASSIFY_MOVEUP, self._OnMoveUp)  
         EVT_BUTTON(self, ID_CLASSIFY_MOVEDOWN, self._OnMoveDown)  
785    
786          #              sizer = wxBoxSizer(wxHORIZONTAL)
787          # Control buttons:              sizer.Add(wxStaticText(panel, ID_PROPERTY_FIELDTEXT, _("Field: ")),
788          #                  0, wxALIGN_LEFT | wxALIGN_CENTER_VERTICAL | wxALL, 4)
789          buttonBox = wxBoxSizer(wxHORIZONTAL)              sizer.Add(self.fields, 1, wxGROW | wxALL, 4)
790          buttonBox.Add(wxButton(self, ID_CLASSIFY_OK, _("OK")),  
791                        0, wxALL, 4)              classBox.Add(sizer, 0, wxGROW, 4)
792          buttonBox.Add(wxButton(self, ID_CLASSIFY_CANCEL, _("Cancel")),  
793                        0, wxALL, 4)              classBox.Add(self.fieldTypeText, 0,
794          topBox.Add(buttonBox, 0, wxALIGN_CENTER_HORIZONTAL|wxALIGN_BOTTOM, 10)                          wxGROW | wxALIGN_LEFT | wxALL | wxADJUST_MINSIZE, 4)
795    
796                controlBox = wxBoxSizer(wxHORIZONTAL)
797                controlButtonBox = wxBoxSizer(wxVERTICAL)
798    
799                controlButtonBox.Add(button_gen, 0, wxGROW|wxALL, 4)
800                controlButtonBox.Add(button_add, 0, wxGROW|wxALL, 4)
801                controlButtonBox.Add(button_moveup, 0, wxGROW|wxALL, 4)
802                controlButtonBox.Add(button_movedown, 0, wxGROW|wxALL, 4)
803                controlButtonBox.Add(button_edit, 0, wxGROW|wxALL, 4)
804                controlButtonBox.Add(60, 20, 0, wxGROW|wxALL|wxALIGN_BOTTOM, 4)
805                controlButtonBox.Add(button_remove, 0,
806                                     wxGROW|wxALL|wxALIGN_BOTTOM, 4)
807    
808          EVT_BUTTON(self, ID_CLASSIFY_OK, self._OnOK)              controlBox.Add(self.classGrid, 1, wxGROW, 0)
809          EVT_BUTTON(self, ID_CLASSIFY_CANCEL, self._OnCancel)              controlBox.Add(controlButtonBox, 0, wxGROW, 10)
810    
811                classBox.Add(controlBox, 1, wxGROW, 10)
812                panelBox.Add(classBox, 1, wxGROW, 0)
813    
814    
815          self.SetAutoLayout(true)          buttonBox = wxBoxSizer(wxHORIZONTAL)
816            buttonBox.Add(button_try, 0, wxALL, 4)
817            buttonBox.Add(60, 20, 0, wxALL, 4)
818            buttonBox.Add(button_revert, 0, wxALL, 4)
819            buttonBox.Add(60, 20, 0, wxALL, 4)
820            buttonBox.Add(button_ok, 0, wxALL, 4)
821            buttonBox.Add(60, 20, 0, wxALL, 4)
822            buttonBox.Add(button_close, 0, wxALL, 4)
823            panelBox.Add(buttonBox, 0,
824                wxALL|wxALIGN_CENTER_HORIZONTAL|wxALIGN_BOTTOM, 0)
825    
826            panel.SetAutoLayout(True)
827            panel.SetSizer(panelBox)
828            panelBox.Fit(panel)
829            panelBox.SetSizeHints(panel)
830    
831            topBox.Add(panel, 1, wxGROW | wxALL, 4)
832    
833            self.SetAutoLayout(True)
834          self.SetSizer(topBox)          self.SetSizer(topBox)
835          topBox.Fit(self)          topBox.Fit(self)
836          topBox.SetSizeHints(self)          topBox.SetSizeHints(self)
837            self.Layout()
838    
839      def __BuildClassification(self, fieldIndex):          ###########
840    
841          clazz = Classification()          EVT_CHOICE(self, ID_PROPERTY_SELECT, self._OnFieldSelect)
842          fieldName = self.fields.GetString(fieldIndex)          EVT_TEXT(self, ID_PROPERTY_TITLE, self._OnTitleChanged)
843          fieldType = self.layer.GetFieldType(fieldName)          EVT_BUTTON(self, wxID_OK, self._OnOK)
844            EVT_BUTTON(self, ID_PROPERTY_TRY, self._OnTry)
845            EVT_BUTTON(self, wxID_CANCEL, self._OnCloseBtn)
846            EVT_BUTTON(self, ID_PROPERTY_REVERT, self._OnRevert)
847    
848            EVT_BUTTON(self, ID_PROPERTY_ADD, self._OnAdd)
849            EVT_BUTTON(self, ID_PROPERTY_EDITSYM, self._OnEditSymbol)
850            EVT_BUTTON(self, ID_PROPERTY_REMOVE, self._OnRemove)
851            EVT_BUTTON(self, ID_PROPERTY_GENCLASS, self._OnGenClass)
852            EVT_BUTTON(self, ID_PROPERTY_MOVEUP, self._OnMoveUp)
853            EVT_BUTTON(self, ID_PROPERTY_MOVEDOWN, self._OnMoveDown)
854    
855            ######################
856    
857            text_title.SetFocus()
858            self.haveApplied = False
859    
860        def EditSymbol(self, row):
861            table = self.classGrid.GetTable()
862            prop = table.GetValueAsCustom(row, COL_SYMBOL, None)
863    
864            # get a new ClassGroupProperties object and copy the
865            # values over to our current object
866            propDlg = SelectPropertiesDialog(NULL, prop, self.layer.ShapeType())
867    
868            self.Enable(False)
869            if propDlg.ShowModal() == wxID_OK:
870                new_prop = propDlg.GetClassGroupProperties()
871                table.SetValueAsCustom(row, COL_SYMBOL, None, new_prop)
872            self.Enable(True)
873            propDlg.Destroy()
874            
875        def _SetClassification(self, clazz):
876            
877            self.fields.SetClientData(self.__cur_field, clazz)
878            self.classGrid.GetTable().SetClassification(clazz)
879    
880        def __BuildClassification(self, fieldIndex, copyClass = False):
881    
882    #       numRows = self.classGrid.GetNumberRows()
883    #       assert numRows > 0  # there should always be a default row
884    
885    #       clazz = Classification()
886            if fieldIndex == 0:
887                fieldName = None
888                fieldType = None
889            else:
890                fieldName = self.fields.GetString(fieldIndex)
891                fieldType = self.layer.GetFieldType(fieldName)
892    
893            clazz = self.classGrid.GetTable().GetClassification()
894    
895            if copyClass:
896                clazz = copy.deepcopy(clazz)
897    
898          clazz.SetField(fieldName)          clazz.SetField(fieldName)
899          clazz.SetFieldType(fieldType)          clazz.SetFieldType(fieldType)
900    
         numRows = self.classGrid.GetNumberRows()  
901    
902          assert(numRows > 0) # there should always be a default row  #       table = self.classGrid.GetTable()
903    #       clazz.SetDefaultGroup(table.GetClassGroup(0))
904    
905          table = self.classGrid.GetTable()  #       for i in range(1, numRows):
906          clazz.SetDefaultGroup(table.GetClassGroup(0))  #           clazz.AppendGroup(table.GetClassGroup(i))
   
         for i in range(1, numRows):  
             clazz.AddGroup(table.GetClassGroup(i))  
907    
908          return clazz          return clazz
909    
910      def __SetGridTable(self, fieldIndex):      def __SetGridTable(self, fieldIndex, group = None):
911    
912          clazz = self.fields.GetClientData(fieldIndex)          clazz = self.fields.GetClientData(fieldIndex)
913    
# Line 680  class Classifier(wxDialog): Line 915  class Classifier(wxDialog):
915              clazz = Classification()              clazz = Classification()
916              clazz.SetDefaultGroup(              clazz.SetDefaultGroup(
917                  ClassGroupDefault(                  ClassGroupDefault(
918                      self.layer.GetClassification().GetDefaultGroup().GetProperties()))                      self.layer.GetClassification().
919                                   GetDefaultGroup().GetProperties()))
920    
921              fieldName = self.fields.GetString(fieldIndex)              fieldName = self.fields.GetString(fieldIndex)
922              fieldType = self.layer.GetFieldType(fieldName)              fieldType = self.layer.GetFieldType(fieldName)
923              clazz.SetFieldType(fieldType)              clazz.SetFieldType(fieldType)
924                                    
925          self.classGrid.CreateTable(clazz, self.layer.ShapeType())          self.classGrid.CreateTable(clazz, self.layer.ShapeType(), group)
926    
927      def _OnFieldSelect(self, event):      def __SetFieldTypeText(self, fieldIndex):
928          clazz = self.__BuildClassification(self.__cur_field)          fieldName = self.fields.GetString(fieldIndex)
929          self.fields.SetClientData(self.__cur_field, clazz)          fieldType = self.layer.GetFieldType(fieldName)
930    
931          self.__cur_field = self.fields.GetSelection()          assert Classifier.type2string.has_key(fieldType)
         self.__SetGridTable(self.__cur_field)  
932    
933      def _OnOK(self, event):          text = Classifier.type2string[fieldType]
934    
935            self.fieldTypeText.SetLabel(_("Data Type: %s") % text)
936    
937        def __SelectField(self, newIndex, oldIndex = -1, group = None):
938            """This method assumes that the current selection for the
939            combo has already been set by a call to SetSelection().
940            """
941    
942            assert oldIndex >= -1
943    
944            if oldIndex != -1:
945                clazz = self.__BuildClassification(oldIndex)
946                self.fields.SetClientData(oldIndex, clazz)
947    
948            self.__SetGridTable(newIndex, group)
949    
950            self.__EnableButtons(EB_SELECT_FIELD, newIndex != 0)
951    
952            self.__SetFieldTypeText(newIndex)
953    
954        def __SetTitle(self, title):
955            if title != "":
956                title = ": " + title
957    
958            self.SetTitle(_("Layer Properties") + title)
959    
960        def _OnEditSymbol(self, event):
961            sel = self.classGrid.GetCurrentSelection()
962    
963            if len(sel) == 1:
964                self.EditSymbol(sel[0])
965    
966        def _OnFieldSelect(self, event):
967            index = self.fields.GetSelection()
968            self.__SelectField(index, self.__cur_field)
969            self.__cur_field = index
970    
971        def _OnTry(self, event):
972          """Put the data from the table into a new Classification and hand          """Put the data from the table into a new Classification and hand
973             it to the layer.             it to the layer.
974          """          """
975    
976          clazz = self.fields.GetClientData(self.__cur_field)          if self.layer.HasClassification():
977                clazz = self.fields.GetClientData(self.__cur_field)
978    
979          #              #
980          # only build the classification if there wasn't one to              # only build the classification if there wasn't one to
981          # to begin with or it has been modified              # to begin with or it has been modified
982          #              #
983          if clazz is None or self.classGrid.GetTable().IsModified():              self.classGrid.SaveEditControlValue()
984              clazz = self.__BuildClassification(self.__cur_field)              if clazz is None or self.classGrid.GetTable().IsModified():
985                    clazz = self.__BuildClassification(self.__cur_field, True)
986    
987          clazz.SetLayer(self.layer)              self.layer.SetClassification(clazz)
988    
989          self.layer.SetClassification(clazz)          self.haveApplied = True
990    
991          self.EndModal(wxID_OK)      def _OnOK(self, event):
992            self._OnTry(event)
993            self.Close()
994    
995      def _OnCancel(self, event):      def OnClose(self, event):
996          """Do nothing. The layer's current classification stays the same."""          NonModalDialog.OnClose(self, event)
997          self.EndModal(wxID_CANCEL)  
998        def _OnCloseBtn(self, event):
999            """Close is similar to Cancel except that any changes that were
1000            made and applied remain applied, but the currently displayed
1001            classification is discarded.
1002            """
1003    
1004            self.Close()
1005    
1006        def _OnRevert(self, event):
1007            """The layer's current classification stays the same."""
1008            if self.haveApplied:
1009                self.layer.SetClassification(self.originalClass)
1010    
1011            #self.Close()
1012    
1013      def _OnAdd(self, event):      def _OnAdd(self, event):
1014          self.classGrid.AppendRows()          self.classGrid.AppendRows()
# Line 725  class Classifier(wxDialog): Line 1016  class Classifier(wxDialog):
1016      def _OnRemove(self, event):      def _OnRemove(self, event):
1017          self.classGrid.DeleteSelectedRows()          self.classGrid.DeleteSelectedRows()
1018    
1019      def _OnGenRange(self, event):      def _OnGenClass(self, event):
1020          print "Classifier._OnGenRange()"  
1021            self.genDlg = ClassGenDialog(self, self.layer,
1022                              self.fields.GetString(self.__cur_field))
1023    
1024            EVT_CLOSE(self.genDlg, self._OnGenDialogClose)
1025    
1026            self.__EnableButtons(EB_GEN_CLASS, False)
1027    
1028            self.genDlg.Show()
1029    
1030        def _OnGenDialogClose(self, event):
1031            self.genDlg.Destroy()
1032            self.__EnableButtons(EB_GEN_CLASS, True)
1033    
1034      def _OnMoveUp(self, event):      def _OnMoveUp(self, event):
1035          sel = self.classGrid.GetCurrentSelection()          sel = self.classGrid.GetCurrentSelection()
# Line 741  class Classifier(wxDialog): Line 1044  class Classifier(wxDialog):
1044                  table.SetClassGroup(i, x)                  table.SetClassGroup(i, x)
1045                  self.classGrid.ClearSelection()                  self.classGrid.ClearSelection()
1046                  self.classGrid.SelectRow(i - 1)                  self.classGrid.SelectRow(i - 1)
1047                    self.classGrid.MakeCellVisible(i - 1, 0)
1048    
1049      def _OnMoveDown(self, event):      def _OnMoveDown(self, event):
1050          sel = self.classGrid.GetCurrentSelection()          sel = self.classGrid.GetCurrentSelection()
# Line 755  class Classifier(wxDialog): Line 1059  class Classifier(wxDialog):
1059                  table.SetClassGroup(i + 1, x)                  table.SetClassGroup(i + 1, x)
1060                  self.classGrid.ClearSelection()                  self.classGrid.ClearSelection()
1061                  self.classGrid.SelectRow(i + 1)                  self.classGrid.SelectRow(i + 1)
1062                    self.classGrid.MakeCellVisible(i + 1, 0)
1063    
1064        def _OnTitleChanged(self, event):
1065            obj = event.GetEventObject()
1066    
1067            self.layer.SetTitle(obj.GetValue())
1068            self.__SetTitle(self.layer.Title())
1069    
1070            self.__EnableButtons(EB_LAYER_TITLE, self.layer.Title() != "")
1071    
1072        def __EnableButtons(self, case, enable):
1073    
1074            if case == EB_LAYER_TITLE:  
1075                list = (wxID_OK,
1076                        wxID_CANCEL)
1077    
1078            elif case == EB_SELECT_FIELD:
1079                list = (ID_PROPERTY_GENCLASS,
1080                        ID_PROPERTY_ADD,
1081                        ID_PROPERTY_MOVEUP,
1082                        ID_PROPERTY_MOVEDOWN,
1083                        ID_PROPERTY_EDITSYM,
1084                        ID_PROPERTY_REMOVE)
1085    
1086            elif case == EB_GEN_CLASS:
1087                list = (ID_PROPERTY_SELECT,
1088                        ID_PROPERTY_FIELDTEXT,
1089                        ID_PROPERTY_GENCLASS,
1090                        ID_PROPERTY_EDITSYM)
1091    
1092            for id in list:
1093                self.FindWindowById(id).Enable(enable)
1094    
 ID_SELPROP_OK = 4001  
 ID_SELPROP_CANCEL = 4002  
1095  ID_SELPROP_SPINCTRL = 4002  ID_SELPROP_SPINCTRL = 4002
1096  ID_SELPROP_PREVIEW = 4003  ID_SELPROP_PREVIEW = 4003
1097  ID_SELPROP_STROKECLR = 4004  ID_SELPROP_STROKECLR = 4004
1098  ID_SELPROP_FILLCLR = 4005  ID_SELPROP_FILLCLR = 4005
1099    ID_SELPROP_STROKECLRTRANS = 4006
1100    ID_SELPROP_FILLCLRTRANS = 4007
1101    
1102  class SelectPropertiesDialog(wxDialog):  class SelectPropertiesDialog(wxDialog):
1103    
1104      def __init__(self, parent, prop, shapeType):      def __init__(self, parent, prop, shapeType):
1105          wxDialog.__init__(self, parent, -1, _("Select Properties"),          wxDialog.__init__(self, parent, -1, _("Select Properties"),
1106                            style = wxRESIZE_BORDER)                            style = wxDEFAULT_DIALOG_STYLE | wxRESIZE_BORDER)
1107    
1108          self.prop = ClassGroupProperties(prop)          self.prop = ClassGroupProperties(prop)
1109    
# Line 780  class SelectPropertiesDialog(wxDialog): Line 1115  class SelectPropertiesDialog(wxDialog):
1115          previewBox = wxBoxSizer(wxVERTICAL)          previewBox = wxBoxSizer(wxVERTICAL)
1116          previewBox.Add(wxStaticText(self, -1, _("Preview:")),          previewBox.Add(wxStaticText(self, -1, _("Preview:")),
1117              0, wxALIGN_LEFT | wxALL, 4)              0, wxALIGN_LEFT | wxALL, 4)
1118          self.previewer = ClassDataPreviewer(None, self.prop, shapeType,  
1119                                              self, ID_SELPROP_PREVIEW, (40, 40))          self.previewWin = ClassGroupPropertiesCtrl(
1120          previewBox.Add(self.previewer, 1, wxGROW, 15)              self, ID_SELPROP_PREVIEW, self.prop, shapeType,
1121                (40, 40), wxSIMPLE_BORDER)
1122    
1123            self.previewWin.AllowEdit(False)
1124    
1125            previewBox.Add(self.previewWin, 1, wxGROW | wxALL, 4)
1126    
1127          itemBox.Add(previewBox, 1, wxALIGN_LEFT | wxALL | wxGROW, 0)          itemBox.Add(previewBox, 1, wxALIGN_LEFT | wxALL | wxGROW, 0)
1128    
1129          # control box          # control box
1130          ctrlBox = wxBoxSizer(wxVERTICAL)          ctrlBox = wxBoxSizer(wxVERTICAL)
1131          ctrlBox.Add(  
1132              wxButton(self, ID_SELPROP_STROKECLR, "Change Line Color"),          lineColorBox = wxBoxSizer(wxHORIZONTAL)
1133              0, wxALIGN_CENTER_HORIZONTAL | wxALL | wxGROW, 4)          button = wxButton(self, ID_SELPROP_STROKECLR, _("Change Line Color"))
1134            button.SetFocus()
1135            lineColorBox.Add(button, 1, wxALL | wxGROW, 4)
1136          EVT_BUTTON(self, ID_SELPROP_STROKECLR, self._OnChangeLineColor)          EVT_BUTTON(self, ID_SELPROP_STROKECLR, self._OnChangeLineColor)
1137    
1138            lineColorBox.Add(
1139                wxButton(self, ID_SELPROP_STROKECLRTRANS, _("Transparent")),
1140                1, wxALL | wxGROW, 4)
1141            EVT_BUTTON(self, ID_SELPROP_STROKECLRTRANS,
1142                       self._OnChangeLineColorTrans)
1143    
1144            ctrlBox.Add(lineColorBox, 0,
1145                        wxALIGN_CENTER_HORIZONTAL | wxALL | wxGROW, 4)
1146    
1147          if shapeType != SHAPETYPE_ARC:          if shapeType != SHAPETYPE_ARC:
1148              ctrlBox.Add(              fillColorBox = wxBoxSizer(wxHORIZONTAL)
1149                  wxButton(self, ID_SELPROP_FILLCLR, "Change Fill Color"),              fillColorBox.Add(
1150                  0, wxALIGN_LEFT | wxALL | wxGROW, 4)                  wxButton(self, ID_SELPROP_FILLCLR, _("Change Fill Color")),
1151                    1, wxALL | wxGROW, 4)
1152              EVT_BUTTON(self, ID_SELPROP_FILLCLR, self._OnChangeFillColor)              EVT_BUTTON(self, ID_SELPROP_FILLCLR, self._OnChangeFillColor)
1153                fillColorBox.Add(
1154                    wxButton(self, ID_SELPROP_FILLCLRTRANS, _("Transparent")),
1155                    1, wxALL | wxGROW, 4)
1156                EVT_BUTTON(self, ID_SELPROP_FILLCLRTRANS,
1157                           self._OnChangeFillColorTrans)
1158                ctrlBox.Add(fillColorBox, 0,
1159                            wxALIGN_CENTER_HORIZONTAL | wxALL | wxGROW, 4)
1160    
1161          spinBox = wxBoxSizer(wxHORIZONTAL)          spinBox = wxBoxSizer(wxHORIZONTAL)
1162          spinBox.Add(wxStaticText(self, -1, _("Line Width: ")),          spinBox.Add(wxStaticText(self, -1, _("Line Width: ")),
# Line 815  class SelectPropertiesDialog(wxDialog): Line 1174  class SelectPropertiesDialog(wxDialog):
1174          itemBox.Add(ctrlBox, 0, wxALIGN_RIGHT | wxALL | wxGROW, 0)          itemBox.Add(ctrlBox, 0, wxALIGN_RIGHT | wxALL | wxGROW, 0)
1175          topBox.Add(itemBox, 1, wxALIGN_LEFT | wxALL | wxGROW, 0)          topBox.Add(itemBox, 1, wxALIGN_LEFT | wxALL | wxGROW, 0)
1176    
   
1177          #          #
1178          # Control buttons:          # Control buttons:
1179          #          #
1180          buttonBox = wxBoxSizer(wxHORIZONTAL)          buttonBox = wxBoxSizer(wxHORIZONTAL)
1181          buttonBox.Add(wxButton(self, ID_CLASSIFY_OK, _("OK")),          button_ok = wxButton(self, wxID_OK, _("OK"))
1182                        0, wxALL, 4)          button_ok.SetDefault()
1183          buttonBox.Add(wxButton(self, ID_CLASSIFY_CANCEL, _("Cancel")),          buttonBox.Add(button_ok, 0, wxALL, 4)
1184            buttonBox.Add(wxButton(self, wxID_CANCEL, _("Cancel")),
1185                        0, wxALL, 4)                        0, wxALL, 4)
1186          topBox.Add(buttonBox, 0, wxALIGN_CENTER_HORIZONTAL|wxALIGN_BOTTOM, 10)          topBox.Add(buttonBox, 0, wxALIGN_CENTER_HORIZONTAL|wxALIGN_BOTTOM, 10)
1187                                                                                                                                                                    
1188          EVT_BUTTON(self, ID_SELPROP_OK, self._OnOK)          #EVT_BUTTON(self, wxID_OK, self._OnOK)
1189          EVT_BUTTON(self, ID_SELPROP_CANCEL, self._OnCancel)          #EVT_BUTTON(self, ID_SELPROP_CANCEL, self._OnCancel)
1190                                                                                                                                                                    
1191          self.SetAutoLayout(true)          self.SetAutoLayout(True)
1192          self.SetSizer(topBox)          self.SetSizer(topBox)
1193          topBox.Fit(self)          topBox.Fit(self)
1194          topBox.SetSizeHints(self)          topBox.SetSizeHints(self)
1195    
1196      def _OnOK(self, event):      def OnOK(self, event):
1197          self.EndModal(wxID_OK)          self.EndModal(wxID_OK)
1198    
1199      def _OnCancel(self, event):      def OnCancel(self, event):
1200          self.EndModal(wxID_CANCEL)          self.EndModal(wxID_CANCEL)
1201    
1202      def _OnSpin(self, event):      def _OnSpin(self, event):
1203          self.prop.SetLineWidth(self.spinCtrl.GetValue())          self.prop.SetLineWidth(self.spinCtrl.GetValue())
1204          self.previewer.Refresh()          self.previewWin.Refresh()
1205    
1206      def __GetColor(self, cur):      def __GetColor(self, cur):
1207          dialog = wxColourDialog(self)          dialog = wxColourDialog(self)
1208          dialog.GetColourData().SetColour(Color2wxColour(cur))          if cur is not Color.Transparent:
1209                dialog.GetColourData().SetColour(Color2wxColour(cur))
1210    
1211          ret = None          ret = None
1212          if dialog.ShowModal() == wxID_OK:          if dialog.ShowModal() == wxID_OK:
1213              ret = wxColour2Color(dialog.GetColourData().GetColour())              ret = wxColour2Color(dialog.GetColourData().GetColour())
# Line 859  class SelectPropertiesDialog(wxDialog): Line 1220  class SelectPropertiesDialog(wxDialog):
1220          clr = self.__GetColor(self.prop.GetLineColor())          clr = self.__GetColor(self.prop.GetLineColor())
1221          if clr is not None:          if clr is not None:
1222              self.prop.SetLineColor(clr)              self.prop.SetLineColor(clr)
1223          self.previewer.Refresh() # XXX: work around, see ClassDataPreviewer          self.previewWin.Refresh() # XXX: work around, see ClassDataPreviewer
1224    
1225        def _OnChangeLineColorTrans(self, event):
1226            self.prop.SetLineColor(Color.Transparent)
1227            self.previewWin.Refresh() # XXX: work around, see ClassDataPreviewer
1228            
1229      def _OnChangeFillColor(self, event):      def _OnChangeFillColor(self, event):
1230          clr = self.__GetColor(self.prop.GetFill())          clr = self.__GetColor(self.prop.GetFill())
1231          if clr is not None:          if clr is not None:
1232              self.prop.SetFill(clr)              self.prop.SetFill(clr)
1233          self.previewer.Refresh() # XXX: work around, see ClassDataPreviewer          self.previewWin.Refresh() # XXX: work around, see ClassDataPreviewer
1234    
1235        def _OnChangeFillColorTrans(self, event):
1236            self.prop.SetFill(Color.Transparent)
1237            self.previewWin.Refresh() # XXX: work around, see ClassDataPreviewer
1238    
1239      def GetClassGroupProperties(self):      def GetClassGroupProperties(self):
1240          return self.prop          return self.prop
1241    
1242    
1243  class ClassDataPreviewer(wxWindow):  class ClassDataPreviewWindow(wxWindow):
1244    
1245      def __init__(self, rect, prop, shapeType,      def __init__(self, rect, prop, shapeType,
1246                         parent = None, id = -1, size = wxDefaultSize):                         parent = None, id = -1, size = wxDefaultSize):
1247          if parent is not None:          if parent is not None:
1248              wxWindow.__init__(self, parent, id, size=size)              wxWindow.__init__(self, parent, id, (0, 0), size)
1249              EVT_PAINT(self, self._OnPaint)              EVT_PAINT(self, self._OnPaint)
1250    
1251          self.rect = rect          self.rect = rect
1252    
1253          self.prop = prop          self.prop = prop
1254          self.shapeType = shapeType          self.shapeType = shapeType
1255            self.previewer = ClassDataPreviewer()
1256    
1257        def GetProperties():
1258            return self.prop
1259    
1260      def _OnPaint(self, event):      def _OnPaint(self, event):
1261          dc = wxPaintDC(self)          dc = wxPaintDC(self)
# Line 889  class ClassDataPreviewer(wxWindow): Line 1263  class ClassDataPreviewer(wxWindow):
1263          # XXX: this doesn't seem to be having an effect:          # XXX: this doesn't seem to be having an effect:
1264          dc.DestroyClippingRegion()          dc.DestroyClippingRegion()
1265    
1266          self.Draw(dc, None)          if self.rect is None:
1267                w, h = self.GetSize()
1268                rect = wxRect(0, 0, w, h)
1269            else:
1270                rect = self.rect
1271    
1272      def Draw(self, dc, rect, prop = None, shapeType = None):          self.previewer.Draw(dc, rect, self.prop, self.shapeType)
1273    
1274          if prop is None: prop = self.prop  class ClassDataPreviewer:
1275          if shapeType is None: shapeType = self.shapeType  
1276        def Draw(self, dc, rect, prop, shapeType):
1277    
1278            assert dc is not None
1279            assert isinstance(prop, ClassGroupProperties)
1280    
1281          if rect is None:          if rect is None:
1282              x = y = 0              x = 0
1283              w, h = self.GetClientSizeTuple()              y = 0
1284                w, h = dc.GetSize()
1285          else:          else:
1286              x = rect.GetX()              x = rect.GetX()
1287              y = rect.GetY()              y = rect.GetY()
# Line 906  class ClassDataPreviewer(wxWindow): Line 1289  class ClassDataPreviewer(wxWindow):
1289              h = rect.GetHeight()              h = rect.GetHeight()
1290    
1291          stroke = prop.GetLineColor()          stroke = prop.GetLineColor()
1292          if stroke is Color.None:          if stroke is Color.Transparent:
1293              pen = wxTRANSPARENT_PEN              pen = wxTRANSPARENT_PEN
1294          else:          else:
1295              pen = wxPen(Color2wxColour(stroke),              pen = wxPen(Color2wxColour(stroke),
# Line 914  class ClassDataPreviewer(wxWindow): Line 1297  class ClassDataPreviewer(wxWindow):
1297                          wxSOLID)                          wxSOLID)
1298    
1299          stroke = prop.GetFill()          stroke = prop.GetFill()
1300          if stroke is Color.None:          if stroke is Color.Transparent:
1301              brush = wxTRANSPARENT_BRUSH              brush = wxTRANSPARENT_BRUSH
1302          else:          else:
1303              brush = wxBrush(Color2wxColour(stroke), wxSOLID)              brush = wxBrush(Color2wxColour(stroke), wxSOLID)
# Line 928  class ClassDataPreviewer(wxWindow): Line 1311  class ClassDataPreviewer(wxWindow):
1311                             wxPoint(x + w/2, y + h/4*3),                             wxPoint(x + w/2, y + h/4*3),
1312                             wxPoint(x + w, y)])                             wxPoint(x + w, y)])
1313    
1314          elif shapeType == SHAPETYPE_POINT or \          elif shapeType == SHAPETYPE_POINT:
              shapeType == SHAPETYPE_POLYGON:  
1315    
1316              dc.DrawCircle(x + w/2, y + h/2,              dc.DrawCircle(x + w/2, y + h/2,
1317                            (min(w, h) - prop.GetLineWidth())/2)                            (min(w, h) - prop.GetLineWidth())/2)
1318    
1319            elif shapeType == SHAPETYPE_POLYGON:
1320                dc.DrawRectangle(x, y, w, h)
1321    
1322  class ClassRenderer(wxPyGridCellRenderer):  class ClassRenderer(wxPyGridCellRenderer):
1323    
1324      def __init__(self, shapeType):      def __init__(self, shapeType):
1325          wxPyGridCellRenderer.__init__(self)          wxPyGridCellRenderer.__init__(self)
1326          self.previewer = ClassDataPreviewer(None, None, shapeType)          self.shapeType = shapeType
1327            self.previewer = ClassDataPreviewer()
1328    
1329      def Draw(self, grid, attr, dc, rect, row, col, isSelected):      def Draw(self, grid, attr, dc, rect, row, col, isSelected):
1330          data = grid.GetTable().GetValueAsCustom(row, col, None)          data = grid.GetTable().GetClassGroup(row)
1331    
1332          dc.SetClippingRegion(rect.GetX(), rect.GetY(),          dc.SetClippingRegion(rect.GetX(), rect.GetY(),
1333                               rect.GetWidth(), rect.GetHeight())                               rect.GetWidth(), rect.GetHeight())
# Line 951  class ClassRenderer(wxPyGridCellRenderer Line 1337  class ClassRenderer(wxPyGridCellRenderer
1337                           rect.GetWidth(), rect.GetHeight())                           rect.GetWidth(), rect.GetHeight())
1338    
1339          if not isinstance(data, ClassGroupMap):          if not isinstance(data, ClassGroupMap):
1340              self.previewer.Draw(dc, rect, data.GetProperties())              self.previewer.Draw(dc, rect, data.GetProperties(), self.shapeType)
1341    
1342          if isSelected:          if isSelected:
1343              dc.SetPen(wxPen(wxColour(0 * 255, 0 * 255, 0 * 255),              dc.SetPen(wxPen(wxBLACK, 1, wxSOLID))
                       4, wxSOLID))  
1344              dc.SetBrush(wxTRANSPARENT_BRUSH)              dc.SetBrush(wxTRANSPARENT_BRUSH)
1345    
1346              dc.DrawRectangle(rect.GetX(), rect.GetY(),              dc.DrawRectangle(rect.GetX(), rect.GetY(),
1347                               rect.GetWidth(), rect.GetHeight())                               rect.GetWidth(), rect.GetHeight())
1348    
1349          dc.DestroyClippingRegion()          dc.DestroyClippingRegion()
1350    
1351    
1352    class ClassGroupPropertiesCtrl(wxWindow, wxControl):
1353    
1354        def __init__(self, parent, id, props, shapeType,
1355                     size = wxDefaultSize, style = 0):
1356    
1357            wxWindow.__init__(self, parent, id, size = size, style = style)
1358    
1359            self.SetProperties(props)
1360            self.SetShapeType(shapeType)
1361            self.AllowEdit(True)
1362    
1363            EVT_PAINT(self, self._OnPaint)
1364            EVT_LEFT_DCLICK(self, self._OnLeftDClick)
1365    
1366            self.previewer = ClassDataPreviewer()
1367    
1368        def _OnPaint(self, event):
1369            dc = wxPaintDC(self)
1370    
1371            # XXX: this doesn't seem to be having an effect:
1372            dc.DestroyClippingRegion()
1373    
1374            w, h = self.GetClientSize()
1375    
1376            self.previewer.Draw(dc,
1377                                wxRect(0, 0, w, h),
1378                                self.GetProperties(),
1379                                self.GetShapeType())
1380    
1381    
1382        def GetProperties(self):
1383            return self.props
1384    
1385        def SetProperties(self, props):
1386            self.props = props
1387            self.Refresh()
1388    
1389        def GetShapeType(self):
1390            return self.shapeType
1391    
1392        def SetShapeType(self, shapeType):
1393            self.shapeType = shapeType
1394            self.Refresh()
1395    
1396        def AllowEdit(self, allow):
1397            self.allowEdit = allow
1398    
1399        def DoEdit(self):
1400            if not self.allowEdit: return
1401    
1402            propDlg = SelectPropertiesDialog(NULL,
1403                                             self.GetProperties(),
1404                                             self.GetShapeType())
1405    
1406            if propDlg.ShowModal() == wxID_OK:
1407                new_prop = propDlg.GetClassGroupProperties()
1408                self.SetProperties(new_prop)
1409                self.Refresh()
1410    
1411            propDlg.Destroy()
1412    
1413        def _OnLeftDClick(self, event):
1414            self.DoEdit()
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