/[thuban]/branches/WIP-pyshapelib-bramz/Thuban/UI/mainwindow.py
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revision 1014 by jan, Fri May 23 09:26:23 2003 UTC revision 2102 by bh, Thu Mar 11 21:04:30 2004 UTC
# Line 1  Line 1 
1  # Copyright (C) 2001, 2002, 2003 by Intevation GmbH  # Copyright (C) 2001, 2002, 2003, 2004 by Intevation GmbH
2  # Authors:  # Authors:
3  # Jan-Oliver Wagner <[email protected]>  # Jan-Oliver Wagner <[email protected]>
4  # Bernhard Herzog <[email protected]>  # Bernhard Herzog <[email protected]>
# Line 12  The main window Line 12  The main window
12  """  """
13    
14  __version__ = "$Revision$"  __version__ = "$Revision$"
15    # $Source$
16  __ThubanVersion__ = "0.2" #"$THUBAN_0_2$"  # $Id$
 #__BuildDate__ = "$Date$"  
17    
18  import os  import os
19    import copy
20    
21  from wxPython.wx import *  from wxPython.wx import *
 from wxPython.wx import __version__ as wxPython_version  
   
 from wxPython.lib.dialogs import wxMultipleChoiceDialog  
22    
23  import Thuban  import Thuban
 import Thuban.version  
24    
25  from Thuban import _  from Thuban import _
26    from Thuban.Model.messages import TITLE_CHANGED
27  from Thuban.Model.session import create_empty_session  from Thuban.Model.session import create_empty_session
28  from Thuban.Model.layer import Layer, RasterLayer  from Thuban.Model.layer import Layer, RasterLayer
29  from Thuban.Model.color import Color  from Thuban.Model.postgisdb import PostGISShapeStore, has_postgis_support
30  from Thuban.Model.proj import Projection  # XXX: replace this by
31    # from wxPython.lib.dialogs import wxMultipleChoiceDialog
32    # when Thuban does not support wxPython 2.4.0 any more.
33    from Thuban.UI.multiplechoicedialog import wxMultipleChoiceDialog
34    
35  import view  import view
36  import tree  import tree
 import proj4dialog  
37  import tableview, identifyview  import tableview, identifyview
38  from Thuban.UI.classifier import Classifier  from Thuban.UI.classifier import Classifier
39  import legend  import legend
# Line 42  from menu import Menu Line 41  from menu import Menu
41    
42  from context import Context  from context import Context
43  from command import registry, Command, ToolCommand  from command import registry, Command, ToolCommand
44  from messages import LAYER_SELECTED, SHAPES_SELECTED, VIEW_POSITION  from messages import LAYER_SELECTED, SHAPES_SELECTED, VIEW_POSITION, \
45         MAP_REPLACED
46    from about import About
47    
48  from Thuban.UI.dock import DockFrame  from Thuban.UI.dock import DockFrame
49  from Thuban.UI.join import JoinDialog  from Thuban.UI.join import JoinDialog
50    from Thuban.UI.dbdialog import DBFrame, DBDialog, ChooseDBTableDialog
51  import resource  import resource
52    import Thuban.Model.resource
53    
54  import projdialog  import projdialog
55    
56    
   
57  class MainWindow(DockFrame):  class MainWindow(DockFrame):
58    
59      # Some messages that can be subscribed/unsubscribed directly through      # Some messages that can be subscribed/unsubscribed directly through
# Line 61  class MainWindow(DockFrame): Line 62  class MainWindow(DockFrame):
62      # actually come from. This delegation is implemented in the      # actually come from. This delegation is implemented in the
63      # Subscribe and unsubscribed methods      # Subscribe and unsubscribed methods
64      delegated_messages = {LAYER_SELECTED: "canvas",      delegated_messages = {LAYER_SELECTED: "canvas",
65                            SHAPES_SELECTED: "canvas"}                            SHAPES_SELECTED: "canvas",
66                              MAP_REPLACED: "canvas"}
67    
68      # Methods delegated to some instance variables. The delegation is      # Methods delegated to some instance variables. The delegation is
69      # implemented in the __getattr__ method.      # implemented in the __getattr__ method.
70      delegated_methods = {"SelectLayer": "canvas",      delegated_methods = {"SelectLayer": "canvas",
71                           "SelectShapes": "canvas",                           "SelectShapes": "canvas",
72                             "SelectedLayer": "canvas",
73                           "SelectedShapes": "canvas",                           "SelectedShapes": "canvas",
74                           }                           }
75    
# Line 99  class MainWindow(DockFrame): Line 102  class MainWindow(DockFrame):
102          canvas.Subscribe(VIEW_POSITION, self.view_position_changed)          canvas.Subscribe(VIEW_POSITION, self.view_position_changed)
103          canvas.Subscribe(SHAPES_SELECTED, self.identify_view_on_demand)          canvas.Subscribe(SHAPES_SELECTED, self.identify_view_on_demand)
104          self.canvas = canvas          self.canvas = canvas
105            self.canvas.Subscribe(TITLE_CHANGED, self.title_changed)
106    
107          self.SetMainWindow(self.canvas)          self.SetMainWindow(self.canvas)
108    
# Line 106  class MainWindow(DockFrame): Line 110  class MainWindow(DockFrame):
110    
111          self.init_dialogs()          self.init_dialogs()
112    
113            self.ShowLegend()
114    
115          EVT_CLOSE(self, self.OnClose)          EVT_CLOSE(self, self.OnClose)
116    
117      def Subscribe(self, channel, *args):      def Subscribe(self, channel, *args):
# Line 128  class MainWindow(DockFrame): Line 134  class MainWindow(DockFrame):
134          """          """
135          if channel in self.delegated_messages:          if channel in self.delegated_messages:
136              object = getattr(self, self.delegated_messages[channel])              object = getattr(self, self.delegated_messages[channel])
137              object.Unsubscribe(channel, *args)              try:
138                    object.Unsubscribe(channel, *args)
139                except wxPyDeadObjectError:
140                    # The object was a wxObject and has already been
141                    # destroyed. Hopefully it has unsubscribed all its
142                    # subscribers already so that it's OK if we do nothing
143                    # here
144                    pass
145    
146      def __getattr__(self, attr):      def __getattr__(self, attr):
147          """If attr is one of the delegated methods return that method          """If attr is one of the delegated methods return that method
# Line 359  class MainWindow(DockFrame): Line 372  class MainWindow(DockFrame):
372              result = wxID_NO              result = wxID_NO
373          return result          return result
374    
     def prepare_new_session(self):  
         for d in self.dialogs.values():  
             if not isinstance(d, tree.SessionTreeView):  
                 d.Close()  
   
375      def NewSession(self):      def NewSession(self):
376          if self.save_modified_session() != wxID_CANCEL:          if self.save_modified_session() != wxID_CANCEL:
             self.prepare_new_session()  
377              self.application.SetSession(create_empty_session())              self.application.SetSession(create_empty_session())
378    
379      def OpenSession(self):      def OpenSession(self):
380          if self.save_modified_session() != wxID_CANCEL:          if self.save_modified_session() != wxID_CANCEL:
381              dlg = wxFileDialog(self, _("Open Session"), ".", "",              dlg = wxFileDialog(self, _("Open Session"),
382                                   self.application.Path("data"), "",
383                                 "Thuban Session File (*.thuban)|*.thuban",                                 "Thuban Session File (*.thuban)|*.thuban",
384                                 wxOPEN)                                 wxOPEN)
385              if dlg.ShowModal() == wxID_OK:              if dlg.ShowModal() == wxID_OK:
386                  self.prepare_new_session()                  self.application.OpenSession(dlg.GetPath(),
387                  self.application.OpenSession(dlg.GetPath())                                               self.run_db_param_dialog)
388                    self.application.SetPath("data", dlg.GetPath())
389              dlg.Destroy()              dlg.Destroy()
390    
391        def run_db_param_dialog(self, parameters, message):
392            dlg = DBDialog(self, _("DB Connection Parameters"), parameters,
393                           message)
394            return dlg.RunDialog()
395    
396      def SaveSession(self):      def SaveSession(self):
397          if self.application.session.filename == None:          if self.application.session.filename == None:
398              self.SaveSessionAs()              self.SaveSessionAs()
# Line 386  class MainWindow(DockFrame): Line 400  class MainWindow(DockFrame):
400              self.application.SaveSession()              self.application.SaveSession()
401    
402      def SaveSessionAs(self):      def SaveSessionAs(self):
403          dlg = wxFileDialog(self, _("Save Session As"), ".", "",          dlg = wxFileDialog(self, _("Save Session As"),
404                               self.application.Path("data"), "",
405                             "Thuban Session File (*.thuban)|*.thuban",                             "Thuban Session File (*.thuban)|*.thuban",
406                             wxSAVE|wxOVERWRITE_PROMPT)                             wxSAVE|wxOVERWRITE_PROMPT)
407          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wxID_OK:
408              self.application.session.SetFilename(dlg.GetPath())              self.application.session.SetFilename(dlg.GetPath())
409              self.application.SaveSession()              self.application.SaveSession()
410                self.application.SetPath("data",dlg.GetPath())
411          dlg.Destroy()          dlg.Destroy()
412    
413      def Exit(self):      def Exit(self):
# Line 407  class MainWindow(DockFrame): Line 423  class MainWindow(DockFrame):
423              # yet.              # yet.
424              self.canvas.Unsubscribe(VIEW_POSITION, self.view_position_changed)              self.canvas.Unsubscribe(VIEW_POSITION, self.view_position_changed)
425              DockFrame.OnClose(self, event)              DockFrame.OnClose(self, event)
426                for dlg in self.dialogs.values():
427                    dlg.Destroy()
428                self.canvas.Destroy()
429              self.Destroy()              self.Destroy()
430    
431      def SetMap(self, map):      def SetMap(self, map):
432          self.canvas.SetMap(map)          self.canvas.SetMap(map)
433          self.__SetTitle(map.Title())          self.update_title()
434    
435          dialog = self.FindRegisteredDock("legend")          dialog = self.FindRegisteredDock("legend")
436          if dialog is not None:          if dialog is not None:
# Line 438  class MainWindow(DockFrame): Line 457  class MainWindow(DockFrame):
457          return self.get_open_dialog("session_tree") is not None          return self.get_open_dialog("session_tree") is not None
458    
459      def About(self):      def About(self):
460          self.RunMessageBox(_("About"),          dlg = About(self)
461                             _("Thuban %s\n"          dlg.ShowModal()
462                              #"Build Date: %s\n"          dlg.Destroy()
463                              "using:\n"  
464                              "  %s\n"      def DatabaseManagement(self):
465                              "  %s\n\n"          name = "dbmanagement"
466                              "Thuban is a program for\n"          dialog = self.get_open_dialog(name)
467                              "exploring geographic data.\n"          if dialog is None:
468                              "Copyright (C) 2001-2003 Intevation GmbH.\n"              map = self.canvas.Map()
469                              "Thuban is licensed under the GNU GPL"              dialog = DBFrame(self, name, self.application.Session())
470                              % (Thuban.version.longversion,              self.add_dialog(name, dialog)
471                                 "wxPython %s" % wxPython_version,              dialog.Show()
472                                 "Python %d.%d.%d" % sys.version_info[:3]          dialog.Raise()
                               )),  
 #                           % __ThubanVersion__), #__BuildDate__)),  
                            wxOK | wxICON_INFORMATION)  
473    
474      def AddLayer(self):      def AddLayer(self):
475          dlg = wxFileDialog(self, _("Select a data file"), ".", "", "*.*",          dlg = wxFileDialog(self, _("Select one or more data files"),
476                             wxOPEN)                             self.application.Path("data"), "",
477                               _("Shapefiles (*.shp)") + "|*.shp;*.SHP|" +
478                               _("All Files (*.*)") + "|*.*",
479                               wxOPEN | wxMULTIPLE)
480          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wxID_OK:
481              filename = dlg.GetPath()              filenames = dlg.GetPaths()
482              title = os.path.splitext(os.path.basename(filename))[0]              for filename in filenames:
483              map = self.canvas.Map()                  title = os.path.splitext(os.path.basename(filename))[0]
484              has_layers = map.HasLayers()                  map = self.canvas.Map()
485              try:                  has_layers = map.HasLayers()
486                  store = self.application.Session().OpenShapefile(filename)                  try:
487              except IOError:                      store = self.application.Session().OpenShapefile(filename)
488                  # the layer couldn't be opened                  except IOError:
489                  self.RunMessageBox(_("Add Layer"),                      # the layer couldn't be opened
490                                     _("Can't open the file '%s'.") % filename)                      self.RunMessageBox(_("Add Layer"),
491              else:                                         _("Can't open the file '%s'.")%filename)
492                  layer = Layer(title, store)                  else:
493                  map.AddLayer(layer)                      layer = Layer(title, store)
494                  if not has_layers:                      map.AddLayer(layer)
495                      # if we're adding a layer to an empty map, fit the                      if not has_layers:
496                      # new map to the window                          # if we're adding a layer to an empty map, fit the
497                      self.canvas.FitMapToWindow()                          # new map to the window
498                            self.canvas.FitMapToWindow()
499                        self.application.SetPath("data",filename)
500          dlg.Destroy()          dlg.Destroy()
501    
502      def AddRasterLayer(self):      def AddRasterLayer(self):
503          dlg = wxFileDialog(self, _("Select an image file"), ".", "", "*.*",          dlg = wxFileDialog(self, _("Select an image file"),
504                               self.application.Path("data"), "", "*.*",
505                             wxOPEN)                             wxOPEN)
506          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wxID_OK:
507              filename = dlg.GetPath()              filename = dlg.GetPath()
# Line 498  class MainWindow(DockFrame): Line 520  class MainWindow(DockFrame):
520                      # if we're adding a layer to an empty map, fit the                      # if we're adding a layer to an empty map, fit the
521                      # new map to the window                      # new map to the window
522                      self.canvas.FitMapToWindow()                      self.canvas.FitMapToWindow()
523                    self.application.SetPath("data", filename)
524            dlg.Destroy()
525    
526        def AddDBLayer(self):
527            """Add a layer read from a database"""
528            session = self.application.Session()
529            dlg = ChooseDBTableDialog(self, self.application.Session())
530    
531            if dlg.ShowModal() == wxID_OK:
532                dbconn, dbtable, id_column, geo_column = dlg.GetTable()
533                try:
534                    title = str(dbtable)
535    
536                    # Chose the correct Interface for the database type
537                    store = session.OpenDBShapeStore(dbconn, dbtable,
538                                                     id_column = id_column,
539                                                     geometry_column = geo_column)
540                    layer = Layer(title, store)
541                except:
542                    # Some error occured while initializing the layer
543                    self.RunMessageBox(_("Add Layer from database"),
544                                       _("Can't open the database table '%s'")
545                                       % dbtable)
546                    return
547    
548                map = self.canvas.Map()
549    
550                has_layers = map.HasLayers()
551                map.AddLayer(layer)
552                if not has_layers:
553                    self.canvas.FitMapToWindow()
554    
555          dlg.Destroy()          dlg.Destroy()
556    
557      def RemoveLayer(self):      def RemoveLayer(self):
# Line 539  class MainWindow(DockFrame): Line 593  class MainWindow(DockFrame):
593          """Return true if a layer is currently selected"""          """Return true if a layer is currently selected"""
594          return self.canvas.HasSelectedLayer()          return self.canvas.HasSelectedLayer()
595    
596        def has_selected_shape_layer(self):
597            """Return true if a shape layer is currently selected"""
598            return isinstance(self.current_layer(), Layer)
599    
600      def has_selected_shapes(self):      def has_selected_shapes(self):
601          """Return true if a shape is currently selected"""          """Return true if a shape is currently selected"""
602          return self.canvas.HasSelectedShapes()          return self.canvas.HasSelectedShapes()
# Line 547  class MainWindow(DockFrame): Line 605  class MainWindow(DockFrame):
605          layer = self.current_layer()          layer = self.current_layer()
606          if layer is not None:          if layer is not None:
607              layer.SetVisible(0)              layer.SetVisible(0)
608            
609      def ShowLayer(self):      def ShowLayer(self):
610          layer = self.current_layer()          layer = self.current_layer()
611          if layer is not None:          if layer is not None:
612              layer.SetVisible(1)              layer.SetVisible(1)
613    
614        def DuplicateLayer(self):
615            """Ceate a new layer above the selected layer with the same shapestore
616            """
617            layer = self.current_layer()
618            if layer is not None and hasattr(layer, "ShapeStore"):
619                new_layer = Layer(_("Copy of `%s'") % layer.Title(),
620                                  layer.ShapeStore(),
621                                  projection = layer.GetProjection())
622                new_classification = copy.deepcopy(layer.GetClassification())
623                new_layer.SetClassification(new_classification)
624                self.Map().AddLayer(new_layer)
625    
626        def CanDuplicateLayer(self):
627            """Return whether the DuplicateLayer method can create a duplicate"""
628            layer = self.current_layer()
629            return layer is not None and hasattr(layer, "ShapeStore")
630    
631      def LayerShowTable(self):      def LayerShowTable(self):
632          layer = self.current_layer()          layer = self.current_layer()
633          if layer is not None:          if layer is not None:
634              table = layer.table              table = layer.ShapeStore().Table()
635              name = "table_view" + str(id(table))              name = "table_view" + str(id(table))
636              dialog = self.get_open_dialog(name)              dialog = self.get_open_dialog(name)
637              if dialog is None:              if dialog is None:
638                  dialog = tableview.LayerTableFrame(self, name,                  dialog = tableview.LayerTableFrame(self, name,
639                                                 _("Table: %s") % layer.Title(),                                           _("Layer Table: %s") % layer.Title(),
640                                                     layer, table)                                           layer, table)
641                  self.add_dialog(name, dialog)                  self.add_dialog(name, dialog)
642                  dialog.Show(true)                  dialog.Show(True)
643              else:              else:
644                  # FIXME: bring dialog to front here                  # FIXME: bring dialog to front here
645                  pass                  pass
# Line 613  class MainWindow(DockFrame): Line 688  class MainWindow(DockFrame):
688          dialog = self.get_open_dialog(name)          dialog = self.get_open_dialog(name)
689    
690          if dialog is None:          if dialog is None:
691              dialog = Classifier(self, name, layer, group)              dialog = Classifier(self, name, self.Map(), layer, group)
692              self.add_dialog(name, dialog)              self.add_dialog(name, dialog)
693              dialog.Show()              dialog.Show()
694          dialog.Raise()          dialog.Raise()
695    
696      def LayerJoinTable(self):      def LayerJoinTable(self):
697          print "LayerJoinTable"          layer = self.canvas.SelectedLayer()
698            if layer is not None:
699                dlg = JoinDialog(self, _("Join Layer with Table"),
700                                 self.application.session,
701                                 layer = layer)
702                dlg.ShowModal()
703    
704      def LayerUnjoinTable(self):      def LayerUnjoinTable(self):
705          print "LayerUnjoinTable"          layer = self.canvas.SelectedLayer()
706            if layer is not None:
707                orig_store = layer.ShapeStore().OrigShapeStore()
708                if orig_store:
709                    layer.SetShapeStore(orig_store)
710    
711      def ShowLegend(self):      def ShowLegend(self):
712          if not self.LegendShown():          if not self.LegendShown():
# Line 648  class MainWindow(DockFrame): Line 732  class MainWindow(DockFrame):
732          return dialog is not None and dialog.IsShown()          return dialog is not None and dialog.IsShown()
733    
734      def TableOpen(self):      def TableOpen(self):
735          print "TableOpen: not implemented"          dlg = wxFileDialog(self, _("Open Table"),
736          dlg = wxFileDialog(self, _("Open Table"), ".", "",                             self.application.Path("data"), "",
737                             "DBF Files (*.dbf)|*.dbf|" +                             _("DBF Files (*.dbf)") + "|*.dbf|" +
738                             "CSV Files (*.csv)|*.csv|" +                             #_("CSV Files (*.csv)") + "|*.csv|" +
739                             "All Files (*.*)|*.*",                             _("All Files (*.*)") + "|*.*",
740                             wxOPEN)                             wxOPEN)
741          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wxID_OK:
742              #self.application.session.OpenTable(dlg.GetPath())              filename = dlg.GetPath()
743              pass              dlg.Destroy()
744                try:
745          dlg.Destroy()                  table = self.application.session.OpenTableFile(filename)
746                except IOError:
747                    # the layer couldn't be opened
748                    self.RunMessageBox(_("Open Table"),
749                                       _("Can't open the file '%s'.") % filename)
750                else:
751                    self.ShowTableView(table)
752                    self.application.SetPath("data",filename)
753    
754      def TableClose(self):      def TableClose(self):
755          print "TableClose: not implemented"          tables = self.application.session.UnreferencedTables()
756    
757            lst = [(t.Title(), t) for t in tables]
758            lst.sort()
759            titles = [i[0] for i in lst]
760            dlg = wxMultipleChoiceDialog(self, _("Pick the tables to close:"),
761                                         _("Close Table"), titles,
762                                         size = (400, 300),
763                                         style = wxDEFAULT_DIALOG_STYLE |
764                                                 wxRESIZE_BORDER)
765            if dlg.ShowModal() == wxID_OK:
766                for i in dlg.GetValue():
767                    self.application.session.RemoveTable(lst[i][1])
768    
769    
770      def TableShow(self):      def TableShow(self):
771          """Offer a multi-selection dialog for tables to be displayed          """Offer a multi-selection dialog for tables to be displayed
772            
773          The windows for the selected tables are opened or brought to          The windows for the selected tables are opened or brought to
774          the front.          the front.
775          """          """
776          tables = self.application.session.Tables()          tables = self.application.session.Tables()
         table_list = []  
         for table in tables:  
             table_list.append(table.Title())  
777    
778            lst = [(t.Title(), t) for t in tables]
779            lst.sort()
780            titles = [i[0] for i in lst]
781          dlg = wxMultipleChoiceDialog(self, _("Pick the table to show:"),          dlg = wxMultipleChoiceDialog(self, _("Pick the table to show:"),
782                                       _("Show Table"), table_list)                                       _("Show Table"), titles,
783                                         size = (400,300),
784                                         style = wxDEFAULT_DIALOG_STYLE |
785                                                 wxRESIZE_BORDER)
786          if (dlg.ShowModal() == wxID_OK):          if (dlg.ShowModal() == wxID_OK):
787              for i in dlg.GetValue():              for i in dlg.GetValue():
788                  # XXX: First check whether the dialog is already open                  # XXX: if the table belongs to a layer, open a
789                  # and if so, bring it to the front.                  # LayerTableFrame instead of QueryTableFrame
790                  dialog = tableview.QueryTableFrame(self, table_list[i],                  self.ShowTableView(lst[i][1])
                                               _("Table: %s") % table_list[i],  
                                               tables[i])  
                 self.add_dialog(table_list[i], dialog)  
                 dialog.Show(true)  
   
         # XXX: just some analyis code, remove it when the above XXX is  
         # resolved.  
         for d in self.dialogs.values():  
             if isinstance(d, tableview.LayerTableFrame):  
                 print "LayerTable:", d.GetTitle()  
             elif isinstance(d, tableview.QueryTableFrame):  
                 print "QueryTable:", d.GetTitle()  
             else:  
                 print "Other:", d.GetTitle()  
   
     def TableHide(self):  
         print "TableHide: not implemented"  
791    
792      def TableJoin(self):      def TableJoin(self):
793          dlg = JoinDialog(self, _("Join Tables"), self.application.session)          dlg = JoinDialog(self, _("Join Tables"), self.application.session)
794          dlg.ShowModal()          dlg.ShowModal()
795    
796        def ShowTableView(self, table):
797            """Open a table view for the table and optionally"""
798            name = "table_view%d" % id(table)
799            dialog = self.get_open_dialog(name)
800            if dialog is None:
801                dialog = tableview.QueryTableFrame(self, name,
802                                                   _("Table: %s") % table.Title(),
803                                                   table)
804                self.add_dialog(name, dialog)
805                dialog.Show(True)
806            dialog.Raise()
807    
808        def TableRename(self):
809            """Let the user rename a table"""
810    
811            # First, let the user select a table
812            tables = self.application.session.Tables()
813            lst = [(t.Title(), t) for t in tables]
814            lst.sort()
815            titles = [i[0] for i in lst]
816            dlg = wxMultipleChoiceDialog(self, _("Pick the table to rename:"),
817                                         _("Rename Table"), titles,
818                                         size = (400,300),
819                                         style = wxDEFAULT_DIALOG_STYLE |
820                                                 wxRESIZE_BORDER)
821            if (dlg.ShowModal() == wxID_OK):
822                to_rename = [lst[i][1] for i in dlg.GetValue()]
823                dlg.Destroy()
824            else:
825                to_rename = []
826    
827            # Second, let the user rename the layers
828            for table in to_rename:
829                dlg = wxTextEntryDialog(self, _("Table Title:"), _("Rename Table"),
830                                        table.Title())
831                try:
832                    if dlg.ShowModal() == wxID_OK:
833                        title = dlg.GetValue()
834                        if title != "":
835                            table.SetTitle(title)
836    
837                            # Make sure the session is marked as modified.
838                            # FIXME: This should be handled automatically,
839                            # but that requires more changes to the tables
840                            # than I have time for currently.
841                            self.application.session.changed()
842                finally:
843                    dlg.Destroy()
844    
845    
846      def ZoomInTool(self):      def ZoomInTool(self):
847          self.canvas.ZoomInTool()          self.canvas.ZoomInTool()
848    
# Line 735  class MainWindow(DockFrame): Line 875  class MainWindow(DockFrame):
875          self.canvas.Print()          self.canvas.Print()
876    
877      def RenameMap(self):      def RenameMap(self):
878          dlg = wxTextEntryDialog(self, "Map Title: ", "Rename Map",          dlg = wxTextEntryDialog(self, _("Map Title:"), _("Rename Map"),
879                                  self.Map().Title())                                  self.Map().Title())
880          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wxID_OK:
881              title = dlg.GetValue()              title = dlg.GetValue()
882              if title != "":              if title != "":
883                  self.Map().SetTitle(title)                  self.Map().SetTitle(title)
                 self.__SetTitle(title)  
884    
885          dlg.Destroy()          dlg.Destroy()
886    
887        def RenameLayer(self):
888            """Let the user rename the currently selected layer"""
889            layer = self.current_layer()
890            if layer is not None:
891                dlg = wxTextEntryDialog(self, _("Layer Title:"), _("Rename Layer"),
892                                        layer.Title())
893                try:
894                    if dlg.ShowModal() == wxID_OK:
895                        title = dlg.GetValue()
896                        if title != "":
897                            layer.SetTitle(title)
898                finally:
899                    dlg.Destroy()
900    
901      def identify_view_on_demand(self, layer, shapes):      def identify_view_on_demand(self, layer, shapes):
902          """Subscribed to the canvas' SHAPES_SELECTED message          """Subscribed to the canvas' SHAPES_SELECTED message
903    
# Line 769  class MainWindow(DockFrame): Line 922  class MainWindow(DockFrame):
922                  # FIXME: bring dialog to front?                  # FIXME: bring dialog to front?
923                  pass                  pass
924    
925      def __SetTitle(self, title):      def title_changed(self, map):
926          self.SetTitle("Thuban - " + title)          """Subscribed to the canvas' TITLE_CHANGED messages"""
927            self.update_title()
928    
929        def update_title(self):
930            """Update the window's title according to it's current state.
931    
932            In this default implementation the title is 'Thuban - ' followed
933            by the map's title or simply 'Thuban' if there is not map.
934            Derived classes should override this method to get different
935            titles.
936    
937            This method is called automatically by other methods when the
938            title may have to change. For the methods implemented in this
939            class this usually only means that a different map has been set
940            or the current map's title has changed.
941            """
942            map = self.Map()
943            if map is not None:
944                title = _("Thuban - %s") % (map.Title(),)
945            else:
946                title = _("Thuban")
947            self.SetTitle(title)
948    
949    
950  #  #
951  # Define all the commands available in the main window  # Define all the commands available in the main window
# Line 812  def _has_selected_layer(context): Line 987  def _has_selected_layer(context):
987      """Return true if a layer is selected in the context"""      """Return true if a layer is selected in the context"""
988      return context.mainwindow.has_selected_layer()      return context.mainwindow.has_selected_layer()
989    
990    def _has_selected_shape_layer(context):
991        """Return true if a shape layer is selected in the context"""
992        return context.mainwindow.has_selected_shape_layer()
993    
994  def _has_selected_shapes(context):  def _has_selected_shapes(context):
995      """Return true if a layer is selected in the context"""      """Return true if a layer is selected in the context"""
996      return context.mainwindow.has_selected_shapes()      return context.mainwindow.has_selected_shapes()
# Line 838  def _has_legend_shown(context): Line 1017  def _has_legend_shown(context):
1017      """Return true if the legend window is shown"""      """Return true if the legend window is shown"""
1018      return context.mainwindow.LegendShown()      return context.mainwindow.LegendShown()
1019    
1020    def _has_gdal_support(context):
1021        """Return True if the GDAL is available"""
1022        return Thuban.Model.resource.has_gdal_support()
1023    
1024    def _has_dbconnections(context):
1025        """Return whether the the session has database connections"""
1026        return context.session.HasDBConnections()
1027    
1028    def _has_postgis_support(context):
1029        return has_postgis_support()
1030    
1031    
1032  # File menu  # File menu
1033  _method_command("new_session", _("&New Session"), "NewSession")  _method_command("new_session", _("&New Session"), "NewSession",
1034  _method_command("open_session", _("&Open Session..."), "OpenSession")                  helptext = _("Start a new session"))
1035  _method_command("save_session", _("&Save Session"), "SaveSession")  _method_command("open_session", _("&Open Session..."), "OpenSession",
1036  _method_command("save_session_as", _("Save Session &As..."), "SaveSessionAs")                  helptext = _("Open a session file"))
1037    _method_command("save_session", _("&Save Session"), "SaveSession",
1038                    helptext =_("Save this session to the file it was opened from"))
1039    _method_command("save_session_as", _("Save Session &As..."), "SaveSessionAs",
1040                    helptext = _("Save this session to a new file"))
1041  _method_command("toggle_session_tree", _("Session &Tree"), "ToggleSessionTree",  _method_command("toggle_session_tree", _("Session &Tree"), "ToggleSessionTree",
1042                  checked = _has_tree_window_shown)                  checked = _has_tree_window_shown,
1043                    helptext = _("Toggle on/off the session tree analysis window"))
1044  _method_command("toggle_legend", _("Legend"), "ToggleLegend",  _method_command("toggle_legend", _("Legend"), "ToggleLegend",
1045                  checked = _has_legend_shown)                  checked = _has_legend_shown,
1046  _method_command("exit", _("E&xit"), "Exit")                  helptext = _("Toggle Legend on/off"))
1047    _method_command("database_management", _("&Database Connections..."),
1048                    "DatabaseManagement",
1049                    sensitive = _has_postgis_support)
1050    _method_command("exit", _("E&xit"), "Exit",
1051                    helptext = _("Finish working with Thuban"))
1052    
1053  # Help menu  # Help menu
1054  _method_command("help_about", _("&About..."), "About")  _method_command("help_about", _("&About..."), "About",
1055                    helptext = _("Info about Thuban authors, version and modules"))
1056    
1057    
1058  # Map menu  # Map menu
1059  _method_command("map_projection", _("Pro&jection..."), "MapProjection")  _method_command("map_projection", _("Pro&jection..."), "MapProjection",
1060                    helptext = _("Set or change the map projection"))
1061    
1062  _tool_command("map_zoom_in_tool", _("&Zoom in"), "ZoomInTool", "ZoomInTool",  _tool_command("map_zoom_in_tool", _("&Zoom in"), "ZoomInTool", "ZoomInTool",
1063                helptext = _("Switch to map-mode 'zoom-in'"), icon = "zoom_in",                helptext = _("Switch to map-mode 'zoom-in'"), icon = "zoom_in",
# Line 874  _tool_command("map_label_tool", _("&Labe Line 1076  _tool_command("map_label_tool", _("&Labe
1076                helptext = _("Add/Remove labels"), icon = "label",                helptext = _("Add/Remove labels"), icon = "label",
1077                sensitive = _has_visible_map)                sensitive = _has_visible_map)
1078  _method_command("map_full_extent", _("&Full extent"), "FullExtent",  _method_command("map_full_extent", _("&Full extent"), "FullExtent",
1079                 helptext = _("Full Extent"), icon = "fullextent",                 helptext = _("Zoom to the full map extent"), icon = "fullextent",
1080                sensitive = _has_visible_map)                sensitive = _has_visible_map)
1081  _method_command("layer_full_extent", _("&Full layer extent"), "FullLayerExtent",  _method_command("layer_full_extent", _("&Full layer extent"), "FullLayerExtent",
1082                 helptext = _("Full Layer Extent"), icon = "fulllayerextent",                  helptext = _("Zoom to the full layer extent"),
1083                sensitive = _has_selected_layer)                  icon = "fulllayerextent", sensitive = _has_selected_layer)
1084  _method_command("selected_full_extent", _("&Full selection extent"), "FullSelectionExtent",  _method_command("selected_full_extent", _("&Full selection extent"),
1085                 helptext = _("Full Selection Extent"), icon = "fullselextent",                  "FullSelectionExtent",
1086                sensitive = _has_selected_shapes)                  helptext = _("Zoom to the full selection extent"),
1087                    icon = "fullselextent", sensitive = _has_selected_shapes)
1088  _method_command("map_export", _("E&xport"), "ExportMap",  _method_command("map_export", _("E&xport"), "ExportMap",
1089                      helptext = _("Export the map to file"))                  helptext = _("Export the map to file"))
1090  _method_command("map_print", _("Prin&t"), "PrintMap",  _method_command("map_print", _("Prin&t"), "PrintMap",
1091                  helptext = _("Print the map"))                  helptext = _("Print the map"))
1092  _method_command("map_rename", _("&Rename..."), "RenameMap",  _method_command("map_rename", _("&Rename..."), "RenameMap",
1093                  helptext = _("Rename the map"))                  helptext = _("Rename the map"))
1094  _method_command("layer_add", _("&Add Layer..."), "AddLayer",  _method_command("layer_add", _("&Add Layer..."), "AddLayer",
1095                  helptext = _("Add a new layer to active map"))                  helptext = _("Add a new layer to the map"))
1096  _method_command("rasterlayer_add", _("&Add Image Layer..."), "AddRasterLayer",  _method_command("rasterlayer_add", _("&Add Image Layer..."), "AddRasterLayer",
1097                  helptext = _("Add a new image layer to active map"))                  helptext = _("Add a new image layer to the map"),
1098                    sensitive = _has_gdal_support)
1099    _method_command("layer_add_db", _("Add &Database Layer..."), "AddDBLayer",
1100                    helptext = _("Add a new database layer to active map"),
1101                    sensitive = _has_dbconnections)
1102  _method_command("layer_remove", _("&Remove Layer"), "RemoveLayer",  _method_command("layer_remove", _("&Remove Layer"), "RemoveLayer",
1103                  helptext = _("Remove selected layer(s)"),                  helptext = _("Remove selected layer"),
1104                  sensitive = _can_remove_layer)                  sensitive = _can_remove_layer)
1105    
1106  # Layer menu  # Layer menu
1107  _method_command("layer_projection", _("Pro&jection..."), "LayerProjection",  _method_command("layer_projection", _("Pro&jection..."), "LayerProjection",
1108                    sensitive = _has_selected_layer,
1109                    helptext = _("Specify projection for selected layer"))
1110    _method_command("layer_duplicate", _("&Duplicate"), "DuplicateLayer",
1111                    helptext = _("Duplicate selected layer"),
1112              sensitive = lambda context: context.mainwindow.CanDuplicateLayer())
1113    _method_command("layer_rename", _("Re&name ..."), "RenameLayer",
1114                    helptext = _("Rename selected layer"),
1115                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1116  _method_command("layer_raise", _("&Raise"), "RaiseLayer",  _method_command("layer_raise", _("&Raise"), "RaiseLayer",
1117                  helptext = _("Raise selected layer(s)"),                  helptext = _("Raise selected layer"),
1118                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1119  _method_command("layer_lower", _("&Lower"), "LowerLayer",  _method_command("layer_lower", _("&Lower"), "LowerLayer",
1120                  helptext = _("Lower selected layer(s)"),                  helptext = _("Lower selected layer"),
1121                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1122  _method_command("layer_show", _("&Show"), "ShowLayer",  _method_command("layer_show", _("&Show"), "ShowLayer",
1123                  helptext = _("Make selected layer(s) visible"),                  helptext = _("Make selected layer visible"),
1124                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1125  _method_command("layer_hide", _("&Hide"), "HideLayer",  _method_command("layer_hide", _("&Hide"), "HideLayer",
1126                  helptext = _("Make selected layer(s) unvisible"),                  helptext = _("Make selected layer unvisible"),
1127                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1128  _method_command("layer_show_table", _("Show Ta&ble"), "LayerShowTable",  _method_command("layer_show_table", _("Show Ta&ble"), "LayerShowTable",
1129                  helptext = _("Show the selected layer's table"),                  helptext = _("Show the selected layer's table"),
1130                  sensitive = _has_selected_layer)                  sensitive = _has_selected_shape_layer)
1131  _method_command("layer_properties", _("&Properties..."), "LayerEditProperties",  _method_command("layer_properties", _("&Properties..."), "LayerEditProperties",
1132                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer,
1133                    helptext = _("Edit the properties of the selected layer"))
1134  _method_command("layer_jointable", _("&Join Table..."), "LayerJoinTable",  _method_command("layer_jointable", _("&Join Table..."), "LayerJoinTable",
1135                  sensitive = _has_selected_layer)                  sensitive = _has_selected_shape_layer,
1136                    helptext = _("Join and attach a table to the selected layer"))
1137    
1138    def _can_unjoin(context):
1139        """Return whether the Layer/Unjoin command can be executed.
1140    
1141        This is the case if a layer is selected and that layer has a
1142        shapestore that has an original shapestore.
1143        """
1144        layer = context.mainwindow.SelectedLayer()
1145        if layer is None:
1146            return 0
1147        getstore = getattr(layer, "ShapeStore", None)
1148        if getstore is not None:
1149            return getstore().OrigShapeStore() is not None
1150        else:
1151            return 0
1152  _method_command("layer_unjointable", _("&Unjoin Table..."), "LayerUnjoinTable",  _method_command("layer_unjointable", _("&Unjoin Table..."), "LayerUnjoinTable",
1153                  sensitive = _has_selected_layer)                  sensitive = _can_unjoin,
1154                    helptext = _("Undo the last join operation"))
1155    
1156    
1157    def _has_tables(context):
1158        return bool(context.session.Tables())
1159    
1160  # Table menu  # Table menu
1161  _method_command("table_open", _("&Open..."), "TableOpen")  _method_command("table_open", _("&Open..."), "TableOpen",
1162  _method_command("table_close", _("&Close"), "TableClose")                  helptext = _("Open a DBF-table from a file"))
1163  _method_command("table_show", _("&Show"), "TableShow")  _method_command("table_close", _("&Close..."), "TableClose",
1164  _method_command("table_hide", _("&Hide"), "TableHide")         sensitive = lambda context: bool(context.session.UnreferencedTables()),
1165  _method_command("table_join", _("&Join..."), "TableJoin")                  helptext = _("Close one or more tables from a list"))
1166    _method_command("table_rename", _("&Rename..."), "TableRename",
1167                    sensitive = _has_tables,
1168                    helptext = _("Rename one or more tables"))
1169    _method_command("table_show", _("&Show..."), "TableShow",
1170                    sensitive = _has_tables,
1171                    helptext = _("Show one or more tables in a dialog"))
1172    _method_command("table_join", _("&Join..."), "TableJoin",
1173                    sensitive = _has_tables,
1174                    helptext = _("Join two tables creating a new one"))
1175    
1176  #  Export only under Windows ...  #  Export only under Windows ...
1177  map_menu = ["layer_add", "rasterlayer_add", "layer_remove", "map_rename",  map_menu = ["layer_add", "layer_add_db", "rasterlayer_add", "layer_remove",
1178                          None,                          None,
1179                            "map_rename",
1180                          "map_projection",                          "map_projection",
1181                          None,                          None,
1182                          "map_zoom_in_tool", "map_zoom_out_tool",                          "map_zoom_in_tool", "map_zoom_out_tool",
1183                          "map_pan_tool",                          "map_pan_tool",
1184                          "map_full_extent",                          "map_full_extent",
1185                          "layer_full_extent",                          "layer_full_extent",
1186                          "selected_full_extent",                          "selected_full_extent",
1187                          None,                          None,
# Line 952  main_menu = Menu("<main>", "<main>", Line 1198  main_menu = Menu("<main>", "<main>",
1198                   [Menu("file", _("&File"),                   [Menu("file", _("&File"),
1199                         ["new_session", "open_session", None,                         ["new_session", "open_session", None,
1200                          "save_session", "save_session_as", None,                          "save_session", "save_session_as", None,
1201                            "database_management", None,
1202                          "toggle_session_tree", None,                          "toggle_session_tree", None,
1203                          "exit"]),                          "exit"]),
1204                    Menu("map", _("&Map"), map_menu),                    Menu("map", _("&Map"), map_menu),
1205                    Menu("layer", _("&Layer"),                    Menu("layer", _("&Layer"),
1206                          ["layer_raise", "layer_lower",                         ["layer_rename", "layer_duplicate",
1207                            None,
1208                            "layer_raise", "layer_lower",
1209                          None,                          None,
1210                          "layer_show", "layer_hide",                          "layer_show", "layer_hide",
1211                          None,                          None,
# Line 968  main_menu = Menu("<main>", "<main>", Line 1217  main_menu = Menu("<main>", "<main>",
1217                          None,                          None,
1218                          "layer_properties"]),                          "layer_properties"]),
1219                    Menu("table", _("&Table"),                    Menu("table", _("&Table"),
1220                         ["table_open", "table_close",                         ["table_open", "table_close", "table_rename",
1221                         None,                         None,
1222                         "table_show", "table_hide",                         "table_show",
1223                         None,                         None,
1224                         "table_join"]),                         "table_join"]),
1225                    Menu("help", _("&Help"),                    Menu("help", _("&Help"),
# Line 985  main_toolbar = Menu("<toolbar>", "<toolb Line 1234  main_toolbar = Menu("<toolbar>", "<toolb
1234                       "selected_full_extent",                       "selected_full_extent",
1235                       None,                       None,
1236                       "map_identify_tool", "map_label_tool"])                       "map_identify_tool", "map_label_tool"])
1237    
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