/[thuban]/branches/WIP-pyshapelib-bramz/Thuban/UI/tableview.py
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revision 1219 by bh, Mon Jun 16 17:42:54 2003 UTC revision 1892 by bh, Thu Oct 30 18:16:53 2003 UTC
# Line 17  from wxPython.grid import * Line 17  from wxPython.grid import *
17  from Thuban.Lib.connector import Publisher  from Thuban.Lib.connector import Publisher
18  from Thuban.Model.table import FIELDTYPE_INT, FIELDTYPE_DOUBLE, \  from Thuban.Model.table import FIELDTYPE_INT, FIELDTYPE_DOUBLE, \
19       FIELDTYPE_STRING, table_to_dbf, table_to_csv       FIELDTYPE_STRING, table_to_dbf, table_to_csv
 import view  
20  from dialogs import ThubanFrame  from dialogs import ThubanFrame
21    
22  from messages import SHAPES_SELECTED, SESSION_REPLACED  from messages import SHAPES_SELECTED, SESSION_REPLACED
23  from Thuban.Model.messages import TABLE_REMOVED, MAP_LAYERS_REMOVED  from Thuban.Model.messages import TABLE_REMOVED, MAP_LAYERS_REMOVED
24    from Thuban.UI.common import ThubanBeginBusyCursor, ThubanEndBusyCursor
25    
26  wx_value_type_map = {FIELDTYPE_INT: wxGRID_VALUE_NUMBER,  wx_value_type_map = {FIELDTYPE_INT: wxGRID_VALUE_NUMBER,
27                       FIELDTYPE_DOUBLE: wxGRID_VALUE_FLOAT,                       FIELDTYPE_DOUBLE: wxGRID_VALUE_FLOAT,
# Line 71  class DataTable(wxPyGridTableBase): Line 71  class DataTable(wxPyGridTableBase):
71      # Renderer understands the type too,) not just strings as in the      # Renderer understands the type too,) not just strings as in the
72      # C++ version.      # C++ version.
73      def GetValue(self, row, col):      def GetValue(self, row, col):
74          record = self.table.ReadRowAsDict(row)          record = self.table.ReadRowAsDict(row, row_is_ordinal = 1)
75          return record[self.columns[col][0]]          return record[self.columns[col][0]]
76    
77      def SetValue(self, row, col, value):      def SetValue(self, row, col, value):
# Line 102  class DataTable(wxPyGridTableBase): Line 102  class DataTable(wxPyGridTableBase):
102          return self.CanGetValueAs(row, col, typeName)          return self.CanGetValueAs(row, col, typeName)
103    
104    
105        #
106        def RowIdToOrdinal(self, rowid):
107            """Return the ordinal of the row given by its id"""
108            return self.table.RowIdToOrdinal(rowid)
109    
110        def RowOrdinalToId(self, ordinal):
111            """Return the id of the row given by its ordinal"""
112            return self.table.RowOrdinalToId(ordinal)
113    
114    
115  class NullRenderer(wxPyGridCellRenderer):  class NullRenderer(wxPyGridCellRenderer):
116    
# Line 188  class TableGrid(wxGrid, Publisher): Line 197  class TableGrid(wxGrid, Publisher):
197          self.table.SetTable(table)          self.table.SetTable(table)
198    
199      def OnRangeSelect(self, event):      def OnRangeSelect(self, event):
200            to_id = self.table.RowOrdinalToId
201          if self.handleSelectEvents:          if self.handleSelectEvents:
202              self.rows = dict([(i, 0) for i in self.GetSelectedRows()])              self.rows = dict([(to_id(i), 0) for i in self.GetSelectedRows()])
203    
204              # if we're selecting we need to include the selected range and              # if we're selecting we need to include the selected range and
205              # make sure that the current row is also included, which may              # make sure that the current row is also included, which may
206              # not be the case if you just click on a single row!              # not be the case if you just click on a single row!
207              if event.Selecting():              if event.Selecting():
208                  for i in range(event.GetTopRow(), event.GetBottomRow() + 1):                  for i in range(event.GetTopRow(), event.GetBottomRow() + 1):
209                      self.rows[i] = 0                      self.rows[to_id(i)] = 0
210                  self.rows[event.GetTopLeftCoords().GetRow()] = 0                  self.rows[to_id(event.GetTopLeftCoords().GetRow())] = 0
211        
212              self.issue(ROW_SELECTED, self.rows.keys())              self.issue(ROW_SELECTED, self.rows.keys())
213    
214          event.Skip()          event.Skip()
215    
216      def OnSelectCell(self, event):      def OnSelectCell(self, event):
217            to_id = self.table.RowOrdinalToId
218          if self.handleSelectEvents:          if self.handleSelectEvents:
219              self.issue(ROW_SELECTED, self.GetSelectedRows())              self.issue(ROW_SELECTED,
220                           [to_id(i) for i in self.GetSelectedRows()])
221          event.Skip()          event.Skip()
222    
223      def ToggleEventListeners(self, on):      def ToggleEventListeners(self, on):
224          self.handleSelectEvents = on          self.handleSelectEvents = on
225                
226      def GetNumberSelected(self):      def GetNumberSelected(self):
227          return len(self.rows)          return len(self.rows)
228    
# Line 240  class TableGrid(wxGrid, Publisher): Line 252  class TableGrid(wxGrid, Publisher):
252          if self.allow_messages_count == 0:          if self.allow_messages_count == 0:
253              Publisher.issue(self, *args)              Publisher.issue(self, *args)
254    
255        def SelectRowById(self, rowid, do_select):
256            """Select row with the id rowid"""
257            self.SelectRow(self.table.RowIdToOrdinal(rowid), do_select)
258    
259    
260  class LayerTableGrid(TableGrid):  class LayerTableGrid(TableGrid):
261    
# Line 262  class LayerTableGrid(TableGrid): Line 278  class LayerTableGrid(TableGrid):
278              try:              try:
279                  self.ClearSelection()                  self.ClearSelection()
280                  if len(shapes) > 0:                  if len(shapes) > 0:
281                      #                      # keep track of the lowest id so we can make it the
282                      # keep track of the lowest id so we can make it                      # first visible item
283                      # the first visible item                      first = -1
                     #  
                     first = shapes[0]  
284    
285                        to_ordinal = self.table.RowIdToOrdinal
286                      for shape in shapes:                      for shape in shapes:
287                          self.SelectRow(shape, True)                          row = to_ordinal(shape)
288                          if shape < first:                          self.SelectRow(row, True)
289                              first = shape                          if row < first:
290                                first = row
291    
292                      self.SetGridCursor(first, 0)                      self.SetGridCursor(first, 0)
293                      self.MakeCellVisible(first, 0)                      self.MakeCellVisible(first, 0)
# Line 294  class TableFrame(ThubanFrame): Line 310  class TableFrame(ThubanFrame):
310          self.session = self.app.Session()          self.session = self.app.Session()
311          self.session.Subscribe(TABLE_REMOVED, self.close_on_table_removed)          self.session.Subscribe(TABLE_REMOVED, self.close_on_table_removed)
312    
313        def OnDestroy(self, event):
314            """Extend inherited method to unsubscribe messages"""
315            self.app.Unsubscribe(SESSION_REPLACED, self.close_on_session_replaced)
316            self.session.Unsubscribe(TABLE_REMOVED, self.close_on_table_removed)
317            ThubanFrame.OnDestroy(self, event)
318    
319      def make_grid(self, table):      def make_grid(self, table):
320          """Return the table grid to use in the frame.          """Return the table grid to use in the frame.
# Line 303  class TableFrame(ThubanFrame): Line 324  class TableFrame(ThubanFrame):
324          """          """
325          return TableGrid(self, table)          return TableGrid(self, table)
326    
     def OnClose(self, event):  
         self.app.Unsubscribe(SESSION_REPLACED, self.close_on_session_replaced)  
         self.session.Unsubscribe(TABLE_REMOVED, self.close_on_table_removed)  
         ThubanFrame.OnClose(self, event)  
   
327      def close_on_session_replaced(self, *args):      def close_on_session_replaced(self, *args):
328          """Subscriber for the SESSION_REPLACED messages.          """Subscriber for the SESSION_REPLACED messages.
329    
# Line 329  class TableFrame(ThubanFrame): Line 345  class TableFrame(ThubanFrame):
345  ID_QUERY = 4001  ID_QUERY = 4001
346  ID_EXPORT = 4002  ID_EXPORT = 4002
347  ID_COMBOVALUE = 4003  ID_COMBOVALUE = 4003
348    ID_EXPORTSEL = 4004
349    
350  class QueryTableFrame(TableFrame):  class QueryTableFrame(TableFrame):
351    
# Line 352  class QueryTableFrame(TableFrame): Line 369  class QueryTableFrame(TableFrame):
369                                          _("Add to Selection")])                                          _("Add to Selection")])
370    
371          button_query = wxButton(self.panel, ID_QUERY, _("Query"))          button_query = wxButton(self.panel, ID_QUERY, _("Query"))
372          button_saveas = wxButton(self.panel, ID_EXPORT, _("Export"))          button_export = wxButton(self.panel, ID_EXPORT, _("Export"))
373            button_exportSel = wxButton(self.panel, ID_EXPORTSEL, _("Export Selection"))
374            button_close = wxButton(self.panel, wxID_CLOSE, _("Close"))
375    
376          self.CreateStatusBar()          self.CreateStatusBar()
377    
# Line 385  class QueryTableFrame(TableFrame): Line 404  class QueryTableFrame(TableFrame):
404          sizer.Add(self.choice_action, 0, wxALL, 4)          sizer.Add(self.choice_action, 0, wxALL, 4)
405          sizer.Add(button_query, 0, wxALL | wxALIGN_CENTER_VERTICAL, 4)          sizer.Add(button_query, 0, wxALL | wxALIGN_CENTER_VERTICAL, 4)
406          sizer.Add(40, 20, 0, wxALL, 4)          sizer.Add(40, 20, 0, wxALL, 4)
         sizer.Add(button_saveas, 0, wxALL | wxALIGN_CENTER_VERTICAL, 4)  
407    
408          topBox.Add(sizer, 0, wxEXPAND|wxALL, 4)          topBox.Add(sizer, 0, wxEXPAND|wxALL, 4)
409          topBox.Add(self.grid, 1, wxEXPAND|wxALL, 0)          topBox.Add(self.grid, 1, wxEXPAND|wxALL, 0)
410    
411            sizer = wxBoxSizer(wxHORIZONTAL)
412            sizer.Add(button_export, 0, wxALL, 4)
413            sizer.Add(button_exportSel, 0, wxALL, 4)
414            sizer.Add(60, 20, 1, wxALL|wxEXPAND, 4)
415            sizer.Add(button_close, 0, wxALL|wxALIGN_RIGHT, 4)
416            topBox.Add(sizer, 0, wxALL | wxEXPAND, 4)
417    
418          self.panel.SetAutoLayout(True)          self.panel.SetAutoLayout(True)
419          self.panel.SetSizer(topBox)          self.panel.SetSizer(topBox)
420          topBox.Fit(self.panel)          topBox.Fit(self.panel)
# Line 405  class QueryTableFrame(TableFrame): Line 430  class QueryTableFrame(TableFrame):
430          self.grid.SetFocus()          self.grid.SetFocus()
431    
432          EVT_BUTTON(self, ID_QUERY, self.OnQuery)          EVT_BUTTON(self, ID_QUERY, self.OnQuery)
433          EVT_BUTTON(self, ID_EXPORT, self.OnSaveAs)          EVT_BUTTON(self, ID_EXPORT, self.OnExport)
434            EVT_BUTTON(self, ID_EXPORTSEL, self.OnExportSel)
435            EVT_BUTTON(self, wxID_CLOSE, self.OnClose)
436          EVT_KEY_DOWN(self.grid, self.OnKeyDown)          EVT_KEY_DOWN(self.grid, self.OnKeyDown)
         EVT_GRID_RANGE_SELECT(self.grid, self.OnGridSelectRange)  
         EVT_GRID_SELECT_CELL(self.grid, self.OnGridSelectCell)  
437    
438      def UpdateStatusText(self):          self.grid.Subscribe(ROW_SELECTED, self.UpdateStatusText)
439    
440        def UpdateStatusText(self, rows=None):
441          self.SetStatusText(_("%i rows (%i selected), %i columns")          self.SetStatusText(_("%i rows (%i selected), %i columns")
442              % (self.grid.GetNumberRows(),              % (self.grid.GetNumberRows(),
443                 self.grid.GetNumberSelected(),                 self.grid.GetNumberSelected(),
444                 self.grid.GetNumberCols()))                 self.grid.GetNumberCols()))
445    
     def OnGridSelectRange(self, event):  
         self.UpdateStatusText()  
         event.Skip()  
   
     def OnGridSelectCell(self, event):  
         self.UpdateStatusText()  
         event.Skip()  
           
446      def OnKeyDown(self, event):      def OnKeyDown(self, event):
447          """Catch query key from grid"""          """Catch query key from grid"""
448          if event.AltDown() and event.GetKeyCode() == ord(QUERY_KEY):          if event.AltDown() and event.GetKeyCode() == ord(QUERY_KEY):
# Line 433  class QueryTableFrame(TableFrame): Line 452  class QueryTableFrame(TableFrame):
452              event.Skip()              event.Skip()
453    
454      def OnQuery(self, event):      def OnQuery(self, event):
455          wxBeginBusyCursor()          ThubanBeginBusyCursor()
456          try:          try:
457    
458              text = self.combo_value.GetValue()              text = self.combo_value.GetValue()
# Line 484  class QueryTableFrame(TableFrame): Line 503  class QueryTableFrame(TableFrame):
503                  if firsttime:                  if firsttime:
504                      firsttime = False                      firsttime = False
505                  else:                  else:
506                      self.grid.SelectRow(id, True)                      self.grid.SelectRowById(id, True)
507    
508              self.grid.ToggleEventListeners(True)              self.grid.ToggleEventListeners(True)
509    
# Line 492  class QueryTableFrame(TableFrame): Line 511  class QueryTableFrame(TableFrame):
511              # select the first row              # select the first row
512              #              #
513              if ids:              if ids:
514                  self.grid.SelectRow(ids[0], True)                  self.grid.SelectRowById(ids[0], True)
515    
516          finally:          finally:
517              wxEndBusyCursor()              ThubanEndBusyCursor()
518            
519        def doExport(self, onlySelected):
520                    
     def OnSaveAs(self, event):  
521          dlg = wxFileDialog(self, _("Export Table To"), ".", "",          dlg = wxFileDialog(self, _("Export Table To"), ".", "",
522                             _("DBF Files (*.dbf)|*.dbf|") +                             _("DBF Files (*.dbf)|*.dbf|") +
523                             _("CSV Files (*.csv)|*.csv|") +                             _("CSV Files (*.csv)|*.csv|") +
# Line 507  class QueryTableFrame(TableFrame): Line 527  class QueryTableFrame(TableFrame):
527              filename = dlg.GetPath()              filename = dlg.GetPath()
528              type = os.path.basename(filename).split('.')[-1:][0]              type = os.path.basename(filename).split('.')[-1:][0]
529              dlg.Destroy()              dlg.Destroy()
530    
531                if onlySelected:
532                    records = self.grid.GetSelectedRows()
533                else:
534                    records = None
535    
536              if type.upper() == "DBF":              if type.upper() == "DBF":
537                  table_to_dbf(self.table, filename)                  table_to_dbf(self.table, filename, records)
538              elif type.upper() == 'CSV':              elif type.upper() == 'CSV':
539                  table_to_csv(self.table, filename)                  table_to_csv(self.table, filename, records)
540              else:              else:
541                  dlg = wxMessageDialog(None, "Unsupported format: %s" % type,                  dlg = wxMessageDialog(None, "Unsupported format: %s" % type,
542                                        "Table Export", wxOK|wxICON_WARNING)                                        "Table Export", wxOK|wxICON_WARNING)
# Line 519  class QueryTableFrame(TableFrame): Line 545  class QueryTableFrame(TableFrame):
545          else:          else:
546              dlg.Destroy()              dlg.Destroy()
547    
548        def OnExport(self, event):
549            self.doExport(False)
550    
551        def OnExportSel(self, event):
552            self.doExport(True)
553    
554      def OnClose(self, event):      def OnClose(self, event):
555          TableFrame.OnClose(self, event)          TableFrame.OnClose(self, event)
556    
557      def get_selected(self):      def get_selected(self):
558          """Return a dictionary of the selected rows.          """Return a dictionary of the selected rows.
559            
560          The dictionary has sthe indexes as keys."""          The dictionary has the indexes as keys."""
561          return dict([(i, 0) for i in self.grid.GetSelectedRows()])          to_id = self.table.RowOrdinalToId
562            return dict([(to_id(i), 0) for i in self.grid.GetSelectedRows()])
563    
564    
565  class LayerTableFrame(QueryTableFrame):  class LayerTableFrame(QueryTableFrame):
566    
# Line 548  class LayerTableFrame(QueryTableFrame): Line 582  class LayerTableFrame(QueryTableFrame):
582          # accordingly          # accordingly
583          sel = self.get_selected().keys()          sel = self.get_selected().keys()
584          for i in sel:          for i in sel:
585              self.grid.SelectRow(i, True)              self.grid.SelectRowById(i, True)
586    
587        def OnDestroy(self, event):
588            """Extend inherited method to unsubscribe messages"""
589            self.parent.Unsubscribe(SHAPES_SELECTED, self.select_shapes)
590            self.grid.Unsubscribe(ROW_SELECTED, self.rows_selected)
591            self.map.Unsubscribe(MAP_LAYERS_REMOVED, self.map_layers_removed)
592            QueryTableFrame.OnDestroy(self, event)
593    
594      def make_grid(self, table):      def make_grid(self, table):
595          """Override the derived method to return a LayerTableGrid.          """Override the derived method to return a LayerTableGrid.
# Line 561  class LayerTableFrame(QueryTableFrame): Line 602  class LayerTableFrame(QueryTableFrame):
602          """          """
603          return dict([(i, 0) for i in self.parent.SelectedShapes()])          return dict([(i, 0) for i in self.parent.SelectedShapes()])
604    
     def OnClose(self, event):  
         """Override the derived method to first unsubscribed."""  
         self.parent.Unsubscribe(SHAPES_SELECTED, self.select_shapes)  
         self.grid.Unsubscribe(ROW_SELECTED, self.rows_selected)  
         self.map.Unsubscribe(MAP_LAYERS_REMOVED, self.map_layers_removed)  
         QueryTableFrame.OnClose(self, event)  
   
605      def select_shapes(self, layer, shapes):      def select_shapes(self, layer, shapes):
606          """Subscribed to the SHAPES_SELECTED message.          """Subscribed to the SHAPES_SELECTED message.
607    
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