/[thuban]/branches/WIP-pyshapelib-bramz/Thuban/UI/mainwindow.py
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revision 1056 by frank, Tue May 27 11:29:46 2003 UTC revision 2040 by bh, Tue Dec 23 11:37:04 2003 UTC
# 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):
# Line 375  class MainWindow(DockFrame): Line 382  class MainWindow(DockFrame):
382                                 "Thuban Session File (*.thuban)|*.thuban",                                 "Thuban Session File (*.thuban)|*.thuban",
383                                 wxOPEN)                                 wxOPEN)
384              if dlg.ShowModal() == wxID_OK:              if dlg.ShowModal() == wxID_OK:
385                  self.prepare_new_session()                  self.application.OpenSession(dlg.GetPath(),
386                  self.application.OpenSession(dlg.GetPath())                                               self.run_db_param_dialog)
387              dlg.Destroy()              dlg.Destroy()
388    
389        def run_db_param_dialog(self, parameters, message):
390            dlg = DBDialog(self, _("DB Connection Parameters"), parameters,
391                           message)
392            return dlg.RunDialog()
393    
394      def SaveSession(self):      def SaveSession(self):
395          if self.application.session.filename == None:          if self.application.session.filename == None:
396              self.SaveSessionAs()              self.SaveSessionAs()
# Line 414  class MainWindow(DockFrame): Line 426  class MainWindow(DockFrame):
426    
427      def SetMap(self, map):      def SetMap(self, map):
428          self.canvas.SetMap(map)          self.canvas.SetMap(map)
429          self.__SetTitle(map.Title())          self.update_title()
430    
431          dialog = self.FindRegisteredDock("legend")          dialog = self.FindRegisteredDock("legend")
432          if dialog is not None:          if dialog is not None:
# Line 441  class MainWindow(DockFrame): Line 453  class MainWindow(DockFrame):
453          return self.get_open_dialog("session_tree") is not None          return self.get_open_dialog("session_tree") is not None
454    
455      def About(self):      def About(self):
456          self.RunMessageBox(_("About"),          dlg = About(self)
457                             _("Thuban %s\n"          dlg.ShowModal()
458                              #"Build Date: %s\n"          dlg.Destroy()
459                              "using:\n"  
460                              "  %s\n"      def DatabaseManagement(self):
461                              "  %s\n\n"          name = "dbmanagement"
462                              "Thuban is a program for\n"          dialog = self.get_open_dialog(name)
463                              "exploring geographic data.\n"          if dialog is None:
464                              "Copyright (C) 2001-2003 Intevation GmbH.\n"              map = self.canvas.Map()
465                              "Thuban is licensed under the GNU GPL"              dialog = DBFrame(self, name, self.application.Session())
466                              % (Thuban.version.longversion,              self.add_dialog(name, dialog)
467                                 "wxPython %s" % wxPython_version,              dialog.Show()
468                                 "Python %d.%d.%d" % sys.version_info[:3]          dialog.Raise()
                               )),  
 #                           % __ThubanVersion__), #__BuildDate__)),  
                            wxOK | wxICON_INFORMATION)  
469    
470      def AddLayer(self):      def AddLayer(self):
471          dlg = wxFileDialog(self, _("Select a data file"), ".", "", "*.*",          dlg = wxFileDialog(self, _("Select one or more data files"), ".", "",
472                             wxOPEN)                             _("Shapefiles (*.shp)") + "|*.shp;*.SHP|" +
473                               _("All Files (*.*)") + "|*.*",
474                               wxOPEN | wxMULTIPLE)
475          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wxID_OK:
476              filename = dlg.GetPath()              filenames = dlg.GetPaths()
477              title = os.path.splitext(os.path.basename(filename))[0]              for filename in filenames:
478              map = self.canvas.Map()                  title = os.path.splitext(os.path.basename(filename))[0]
479              has_layers = map.HasLayers()                  map = self.canvas.Map()
480              try:                  has_layers = map.HasLayers()
481                  store = self.application.Session().OpenShapefile(filename)                  try:
482              except IOError:                      store = self.application.Session().OpenShapefile(filename)
483                  # the layer couldn't be opened                  except IOError:
484                  self.RunMessageBox(_("Add Layer"),                      # the layer couldn't be opened
485                                     _("Can't open the file '%s'.") % filename)                      self.RunMessageBox(_("Add Layer"),
486              else:                                         _("Can't open the file '%s'.")%filename)
487                  layer = Layer(title, store)                  else:
488                  map.AddLayer(layer)                      layer = Layer(title, store)
489                  if not has_layers:                      map.AddLayer(layer)
490                      # if we're adding a layer to an empty map, fit the                      if not has_layers:
491                      # new map to the window                          # if we're adding a layer to an empty map, fit the
492                      self.canvas.FitMapToWindow()                          # new map to the window
493                            self.canvas.FitMapToWindow()
494          dlg.Destroy()          dlg.Destroy()
495    
496      def AddRasterLayer(self):      def AddRasterLayer(self):
# Line 503  class MainWindow(DockFrame): Line 515  class MainWindow(DockFrame):
515                      self.canvas.FitMapToWindow()                      self.canvas.FitMapToWindow()
516          dlg.Destroy()          dlg.Destroy()
517    
518        def AddDBLayer(self):
519            """Add a layer read from a database"""
520            session = self.application.Session()
521            dlg = ChooseDBTableDialog(self, self.application.Session())
522    
523            if dlg.ShowModal() == wxID_OK:
524                dbconn, dbtable = dlg.GetTable()
525                try:
526                    title = str(dbtable)
527    
528                    # Chose the correct Interface for the database type
529                    store = PostGISShapeStore(dbconn, dbtable)
530                    session.AddShapeStore(store)
531                    layer = Layer(title, store)
532                except:
533                    # Some error occured while initializing the layer
534                    self.RunMessageBox(_("Add Layer from database"),
535                                       _("Can't open the database table '%s'")
536                                       % dbtable)
537    
538                map = self.canvas.Map()
539    
540                has_layers = map.HasLayers()
541                map.AddLayer(layer)
542                if not has_layers:
543                    self.canvas.FitMapToWindow()
544    
545            dlg.Destroy()
546    
547      def RemoveLayer(self):      def RemoveLayer(self):
548          layer = self.current_layer()          layer = self.current_layer()
549          if layer is not None:          if layer is not None:
# Line 542  class MainWindow(DockFrame): Line 583  class MainWindow(DockFrame):
583          """Return true if a layer is currently selected"""          """Return true if a layer is currently selected"""
584          return self.canvas.HasSelectedLayer()          return self.canvas.HasSelectedLayer()
585    
586        def has_selected_shape_layer(self):
587            """Return true if a shape layer is currently selected"""
588            return isinstance(self.current_layer(), Layer)
589    
590      def has_selected_shapes(self):      def has_selected_shapes(self):
591          """Return true if a shape is currently selected"""          """Return true if a shape is currently selected"""
592          return self.canvas.HasSelectedShapes()          return self.canvas.HasSelectedShapes()
# Line 550  class MainWindow(DockFrame): Line 595  class MainWindow(DockFrame):
595          layer = self.current_layer()          layer = self.current_layer()
596          if layer is not None:          if layer is not None:
597              layer.SetVisible(0)              layer.SetVisible(0)
598            
599      def ShowLayer(self):      def ShowLayer(self):
600          layer = self.current_layer()          layer = self.current_layer()
601          if layer is not None:          if layer is not None:
602              layer.SetVisible(1)              layer.SetVisible(1)
603    
604        def DuplicateLayer(self):
605            """Ceate a new layer above the selected layer with the same shapestore
606            """
607            layer = self.current_layer()
608            if layer is not None and hasattr(layer, "ShapeStore"):
609                new_layer = Layer(_("Copy of `%s'") % layer.Title(),
610                                  layer.ShapeStore(),
611                                  projection = layer.GetProjection())
612                new_classification = copy.deepcopy(layer.GetClassification())
613                new_layer.SetClassification(new_classification)
614                self.Map().AddLayer(new_layer)
615    
616        def CanDuplicateLayer(self):
617            """Return whether the DuplicateLayer method can create a duplicate"""
618            layer = self.current_layer()
619            return layer is not None and hasattr(layer, "ShapeStore")
620    
621      def LayerShowTable(self):      def LayerShowTable(self):
622          layer = self.current_layer()          layer = self.current_layer()
623          if layer is not None:          if layer is not None:
624              table = layer.table              table = layer.ShapeStore().Table()
625              name = "table_view" + str(id(table))              name = "table_view" + str(id(table))
626              dialog = self.get_open_dialog(name)              dialog = self.get_open_dialog(name)
627              if dialog is None:              if dialog is None:
# Line 616  class MainWindow(DockFrame): Line 678  class MainWindow(DockFrame):
678          dialog = self.get_open_dialog(name)          dialog = self.get_open_dialog(name)
679    
680          if dialog is None:          if dialog is None:
681              dialog = Classifier(self, name, layer, group)              dialog = Classifier(self, name, self.Map(), layer, group)
682              self.add_dialog(name, dialog)              self.add_dialog(name, dialog)
683              dialog.Show()              dialog.Show()
684          dialog.Raise()          dialog.Raise()
685    
686      def LayerJoinTable(self):      def LayerJoinTable(self):
687          print "LayerJoinTable: Not implemented."          layer = self.canvas.SelectedLayer()
688            if layer is not None:
689                dlg = JoinDialog(self, _("Join Layer with Table"),
690                                 self.application.session,
691                                 layer = layer)
692                dlg.ShowModal()
693    
694      def LayerUnjoinTable(self):      def LayerUnjoinTable(self):
695          print "LayerUnjoinTable: Not implemented."          layer = self.canvas.SelectedLayer()
696            if layer is not None:
697                orig_store = layer.ShapeStore().OrigShapeStore()
698                if orig_store:
699                    layer.SetShapeStore(orig_store)
700    
701      def ShowLegend(self):      def ShowLegend(self):
702          if not self.LegendShown():          if not self.LegendShown():
# Line 669  class MainWindow(DockFrame): Line 740  class MainWindow(DockFrame):
740                  self.ShowTableView(table)                  self.ShowTableView(table)
741    
742      def TableClose(self):      def TableClose(self):
743          print "TableClose: not implemented"          tables = self.application.session.UnreferencedTables()
744    
745            lst = [(t.Title(), t) for t in tables]
746            lst.sort()
747            titles = [i[0] for i in lst]
748            dlg = wxMultipleChoiceDialog(self, _("Pick the tables to close:"),
749                                         _("Close Table"), titles,
750                                         size = (400, 300),
751                                         style = wxDEFAULT_DIALOG_STYLE |
752                                                 wxRESIZE_BORDER)
753            if dlg.ShowModal() == wxID_OK:
754                for i in dlg.GetValue():
755                    self.application.session.RemoveTable(lst[i][1])
756    
757    
758      def TableShow(self):      def TableShow(self):
759          """Offer a multi-selection dialog for tables to be displayed          """Offer a multi-selection dialog for tables to be displayed
# Line 679  class MainWindow(DockFrame): Line 763  class MainWindow(DockFrame):
763          """          """
764          tables = self.application.session.Tables()          tables = self.application.session.Tables()
765    
766            lst = [(t.Title(), t) for t in tables]
767            lst.sort()
768            titles = [i[0] for i in lst]
769          dlg = wxMultipleChoiceDialog(self, _("Pick the table to show:"),          dlg = wxMultipleChoiceDialog(self, _("Pick the table to show:"),
770                                       _("Show Table"),                                       _("Show Table"), titles,
771                                       [t.Title() for t in tables],                                       size = (400,300),
772                                       size = (400,300), style = wxRESIZE_BORDER)                                       style = wxDEFAULT_DIALOG_STYLE |
773                                                 wxRESIZE_BORDER)
774          if (dlg.ShowModal() == wxID_OK):          if (dlg.ShowModal() == wxID_OK):
775              for i in dlg.GetValue():              for i in dlg.GetValue():
776                  # XXX: if the table belongs to a layer, open a                  # XXX: if the table belongs to a layer, open a
777                  # LayerTableFrame instead of QueryTableFrame                  # LayerTableFrame instead of QueryTableFrame
778                  self.ShowTableView(tables[i])                  self.ShowTableView(lst[i][1])
779    
780      def TableJoin(self):      def TableJoin(self):
781          dlg = JoinDialog(self, _("Join Tables"), self.application.session)          dlg = JoinDialog(self, _("Join Tables"), self.application.session)
# Line 703  class MainWindow(DockFrame): Line 791  class MainWindow(DockFrame):
791                                                 table)                                                 table)
792              self.add_dialog(name, dialog)              self.add_dialog(name, dialog)
793              dialog.Show(True)              dialog.Show(True)
794          # FIXME: else bring dialog to front          dialog.Raise()
795    
796        def TableRename(self):
797            """Let the user rename a table"""
798    
799            # First, let the user select a table
800            tables = self.application.session.Tables()
801            lst = [(t.Title(), t) for t in tables]
802            lst.sort()
803            titles = [i[0] for i in lst]
804            dlg = wxMultipleChoiceDialog(self, _("Pick the table to rename:"),
805                                         _("Rename Table"), titles,
806                                         size = (400,300),
807                                         style = wxDEFAULT_DIALOG_STYLE |
808                                                 wxRESIZE_BORDER)
809            if (dlg.ShowModal() == wxID_OK):
810                to_rename = [lst[i][1] for i in dlg.GetValue()]
811                dlg.Destroy()
812            else:
813                to_rename = []
814    
815            # Second, let the user rename the layers
816            for table in to_rename:
817                dlg = wxTextEntryDialog(self, _("Table Title:"), _("Rename Table"),
818                                        table.Title())
819                try:
820                    if dlg.ShowModal() == wxID_OK:
821                        title = dlg.GetValue()
822                        if title != "":
823                            table.SetTitle(title)
824    
825                            # Make sure the session is marked as modified.
826                            # FIXME: This should be handled automatically,
827                            # but that requires more changes to the tables
828                            # than I have time for currently.
829                            self.application.session.changed()
830                finally:
831                    dlg.Destroy()
832    
833    
834      def ZoomInTool(self):      def ZoomInTool(self):
835          self.canvas.ZoomInTool()          self.canvas.ZoomInTool()
# Line 737  class MainWindow(DockFrame): Line 863  class MainWindow(DockFrame):
863          self.canvas.Print()          self.canvas.Print()
864    
865      def RenameMap(self):      def RenameMap(self):
866          dlg = wxTextEntryDialog(self, "Map Title: ", "Rename Map",          dlg = wxTextEntryDialog(self, _("Map Title:"), _("Rename Map"),
867                                  self.Map().Title())                                  self.Map().Title())
868          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wxID_OK:
869              title = dlg.GetValue()              title = dlg.GetValue()
870              if title != "":              if title != "":
871                  self.Map().SetTitle(title)                  self.Map().SetTitle(title)
                 self.__SetTitle(title)  
872    
873          dlg.Destroy()          dlg.Destroy()
874    
875        def RenameLayer(self):
876            """Let the user rename the currently selected layer"""
877            layer = self.current_layer()
878            if layer is not None:
879                dlg = wxTextEntryDialog(self, _("Layer Title:"), _("Rename Layer"),
880                                        layer.Title())
881                try:
882                    if dlg.ShowModal() == wxID_OK:
883                        title = dlg.GetValue()
884                        if title != "":
885                            layer.SetTitle(title)
886                finally:
887                    dlg.Destroy()
888    
889      def identify_view_on_demand(self, layer, shapes):      def identify_view_on_demand(self, layer, shapes):
890          """Subscribed to the canvas' SHAPES_SELECTED message          """Subscribed to the canvas' SHAPES_SELECTED message
891    
# Line 771  class MainWindow(DockFrame): Line 910  class MainWindow(DockFrame):
910                  # FIXME: bring dialog to front?                  # FIXME: bring dialog to front?
911                  pass                  pass
912    
913      def __SetTitle(self, title):      def title_changed(self, map):
914          self.SetTitle("Thuban - " + title)          """Subscribed to the canvas' TITLE_CHANGED messages"""
915            self.update_title()
916    
917        def update_title(self):
918            """Update the window's title according to it's current state.
919    
920            In this default implementation the title is 'Thuban - ' followed
921            by the map's title or simply 'Thuban' if there is not map.
922            Derived classes should override this method to get different
923            titles.
924    
925            This method is called automatically by other methods when the
926            title may have to change. For the methods implemented in this
927            class this usually only means that a different map has been set
928            or the current map's title has changed.
929            """
930            map = self.Map()
931            if map is not None:
932                title = _("Thuban - %s") % (map.Title(),)
933            else:
934                title = _("Thuban")
935            self.SetTitle(title)
936    
937    
938  #  #
939  # Define all the commands available in the main window  # Define all the commands available in the main window
# Line 814  def _has_selected_layer(context): Line 975  def _has_selected_layer(context):
975      """Return true if a layer is selected in the context"""      """Return true if a layer is selected in the context"""
976      return context.mainwindow.has_selected_layer()      return context.mainwindow.has_selected_layer()
977    
978    def _has_selected_shape_layer(context):
979        """Return true if a shape layer is selected in the context"""
980        return context.mainwindow.has_selected_shape_layer()
981    
982  def _has_selected_shapes(context):  def _has_selected_shapes(context):
983      """Return true if a layer is selected in the context"""      """Return true if a layer is selected in the context"""
984      return context.mainwindow.has_selected_shapes()      return context.mainwindow.has_selected_shapes()
# Line 840  def _has_legend_shown(context): Line 1005  def _has_legend_shown(context):
1005      """Return true if the legend window is shown"""      """Return true if the legend window is shown"""
1006      return context.mainwindow.LegendShown()      return context.mainwindow.LegendShown()
1007    
1008    def _has_gdal_support(context):
1009        """Return True if the GDAL is available"""
1010        return Thuban.Model.resource.has_gdal_support()
1011    
1012    def _has_dbconnections(context):
1013        """Return whether the the session has database connections"""
1014        return context.session.HasDBConnections()
1015    
1016    def _has_postgis_support(context):
1017        return has_postgis_support()
1018    
1019    
1020  # File menu  # File menu
1021  _method_command("new_session", _("&New Session"), "NewSession")  _method_command("new_session", _("&New Session"), "NewSession",
1022  _method_command("open_session", _("&Open Session..."), "OpenSession")                  helptext = _("Start a new session"))
1023  _method_command("save_session", _("&Save Session"), "SaveSession")  _method_command("open_session", _("&Open Session..."), "OpenSession",
1024  _method_command("save_session_as", _("Save Session &As..."), "SaveSessionAs")                  helptext = _("Open a session file"))
1025    _method_command("save_session", _("&Save Session"), "SaveSession",
1026                    helptext =_("Save this session to the file it was opened from"))
1027    _method_command("save_session_as", _("Save Session &As..."), "SaveSessionAs",
1028                    helptext = _("Save this session to a new file"))
1029  _method_command("toggle_session_tree", _("Session &Tree"), "ToggleSessionTree",  _method_command("toggle_session_tree", _("Session &Tree"), "ToggleSessionTree",
1030                  checked = _has_tree_window_shown)                  checked = _has_tree_window_shown,
1031                    helptext = _("Toggle on/off the session tree analysis window"))
1032  _method_command("toggle_legend", _("Legend"), "ToggleLegend",  _method_command("toggle_legend", _("Legend"), "ToggleLegend",
1033                  checked = _has_legend_shown)                  checked = _has_legend_shown,
1034  _method_command("exit", _("E&xit"), "Exit")                  helptext = _("Toggle Legend on/off"))
1035    _method_command("database_management", _("&Database Connections..."),
1036                    "DatabaseManagement",
1037                    sensitive = _has_postgis_support)
1038    _method_command("exit", _("E&xit"), "Exit",
1039                    helptext = _("Finish working with Thuban"))
1040    
1041  # Help menu  # Help menu
1042  _method_command("help_about", _("&About..."), "About")  _method_command("help_about", _("&About..."), "About",
1043                    helptext = _("Info about Thuban authors, version and modules"))
1044    
1045    
1046  # Map menu  # Map menu
1047  _method_command("map_projection", _("Pro&jection..."), "MapProjection")  _method_command("map_projection", _("Pro&jection..."), "MapProjection",
1048                    helptext = _("Set or change the map projection"))
1049    
1050  _tool_command("map_zoom_in_tool", _("&Zoom in"), "ZoomInTool", "ZoomInTool",  _tool_command("map_zoom_in_tool", _("&Zoom in"), "ZoomInTool", "ZoomInTool",
1051                helptext = _("Switch to map-mode 'zoom-in'"), icon = "zoom_in",                helptext = _("Switch to map-mode 'zoom-in'"), icon = "zoom_in",
# Line 876  _tool_command("map_label_tool", _("&Labe Line 1064  _tool_command("map_label_tool", _("&Labe
1064                helptext = _("Add/Remove labels"), icon = "label",                helptext = _("Add/Remove labels"), icon = "label",
1065                sensitive = _has_visible_map)                sensitive = _has_visible_map)
1066  _method_command("map_full_extent", _("&Full extent"), "FullExtent",  _method_command("map_full_extent", _("&Full extent"), "FullExtent",
1067                 helptext = _("Full Extent"), icon = "fullextent",                 helptext = _("Zoom to the full map extent"), icon = "fullextent",
1068                sensitive = _has_visible_map)                sensitive = _has_visible_map)
1069  _method_command("layer_full_extent", _("&Full layer extent"), "FullLayerExtent",  _method_command("layer_full_extent", _("&Full layer extent"), "FullLayerExtent",
1070                 helptext = _("Full Layer Extent"), icon = "fulllayerextent",                  helptext = _("Zoom to the full layer extent"),
1071                sensitive = _has_selected_layer)                  icon = "fulllayerextent", sensitive = _has_selected_layer)
1072  _method_command("selected_full_extent", _("&Full selection extent"), "FullSelectionExtent",  _method_command("selected_full_extent", _("&Full selection extent"),
1073                 helptext = _("Full Selection Extent"), icon = "fullselextent",                  "FullSelectionExtent",
1074                sensitive = _has_selected_shapes)                  helptext = _("Zoom to the full selection extent"),
1075                    icon = "fullselextent", sensitive = _has_selected_shapes)
1076  _method_command("map_export", _("E&xport"), "ExportMap",  _method_command("map_export", _("E&xport"), "ExportMap",
1077                      helptext = _("Export the map to file"))                  helptext = _("Export the map to file"))
1078  _method_command("map_print", _("Prin&t"), "PrintMap",  _method_command("map_print", _("Prin&t"), "PrintMap",
1079                  helptext = _("Print the map"))                  helptext = _("Print the map"))
1080  _method_command("map_rename", _("&Rename..."), "RenameMap",  _method_command("map_rename", _("&Rename..."), "RenameMap",
1081                  helptext = _("Rename the map"))                  helptext = _("Rename the map"))
1082  _method_command("layer_add", _("&Add Layer..."), "AddLayer",  _method_command("layer_add", _("&Add Layer..."), "AddLayer",
1083                  helptext = _("Add a new layer to active map"))                  helptext = _("Add a new layer to the map"))
1084  _method_command("rasterlayer_add", _("&Add Image Layer..."), "AddRasterLayer",  _method_command("rasterlayer_add", _("&Add Image Layer..."), "AddRasterLayer",
1085                  helptext = _("Add a new image layer to active map"))                  helptext = _("Add a new image layer to the map"),
1086                    sensitive = _has_gdal_support)
1087    _method_command("layer_add_db", _("Add &Database Layer..."), "AddDBLayer",
1088                    helptext = _("Add a new database layer to active map"),
1089                    sensitive = _has_dbconnections)
1090  _method_command("layer_remove", _("&Remove Layer"), "RemoveLayer",  _method_command("layer_remove", _("&Remove Layer"), "RemoveLayer",
1091                  helptext = _("Remove selected layer(s)"),                  helptext = _("Remove selected layer"),
1092                  sensitive = _can_remove_layer)                  sensitive = _can_remove_layer)
1093    
1094  # Layer menu  # Layer menu
1095  _method_command("layer_projection", _("Pro&jection..."), "LayerProjection",  _method_command("layer_projection", _("Pro&jection..."), "LayerProjection",
1096                    sensitive = _has_selected_layer,
1097                    helptext = _("Specify projection for selected layer"))
1098    _method_command("layer_duplicate", _("&Duplicate"), "DuplicateLayer",
1099                    helptext = _("Duplicate selected layer"),
1100              sensitive = lambda context: context.mainwindow.CanDuplicateLayer())
1101    _method_command("layer_rename", _("Re&name ..."), "RenameLayer",
1102                    helptext = _("Rename selected layer"),
1103                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1104  _method_command("layer_raise", _("&Raise"), "RaiseLayer",  _method_command("layer_raise", _("&Raise"), "RaiseLayer",
1105                  helptext = _("Raise selected layer(s)"),                  helptext = _("Raise selected layer"),
1106                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1107  _method_command("layer_lower", _("&Lower"), "LowerLayer",  _method_command("layer_lower", _("&Lower"), "LowerLayer",
1108                  helptext = _("Lower selected layer(s)"),                  helptext = _("Lower selected layer"),
1109                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1110  _method_command("layer_show", _("&Show"), "ShowLayer",  _method_command("layer_show", _("&Show"), "ShowLayer",
1111                  helptext = _("Make selected layer(s) visible"),                  helptext = _("Make selected layer visible"),
1112                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1113  _method_command("layer_hide", _("&Hide"), "HideLayer",  _method_command("layer_hide", _("&Hide"), "HideLayer",
1114                  helptext = _("Make selected layer(s) unvisible"),                  helptext = _("Make selected layer unvisible"),
1115                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1116  _method_command("layer_show_table", _("Show Ta&ble"), "LayerShowTable",  _method_command("layer_show_table", _("Show Ta&ble"), "LayerShowTable",
1117                  helptext = _("Show the selected layer's table"),                  helptext = _("Show the selected layer's table"),
1118                  sensitive = _has_selected_layer)                  sensitive = _has_selected_shape_layer)
1119  _method_command("layer_properties", _("&Properties..."), "LayerEditProperties",  _method_command("layer_properties", _("&Properties..."), "LayerEditProperties",
1120                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer,
1121                    helptext = _("Edit the properties of the selected layer"))
1122  _method_command("layer_jointable", _("&Join Table..."), "LayerJoinTable",  _method_command("layer_jointable", _("&Join Table..."), "LayerJoinTable",
1123                  sensitive = _has_selected_layer)                  sensitive = _has_selected_shape_layer,
1124                    helptext = _("Join and attach a table to the selected layer"))
1125    
1126    def _can_unjoin(context):
1127        """Return whether the Layer/Unjoin command can be executed.
1128    
1129        This is the case if a layer is selected and that layer has a
1130        shapestore that has an original shapestore.
1131        """
1132        layer = context.mainwindow.SelectedLayer()
1133        if layer is None:
1134            return 0
1135        getstore = getattr(layer, "ShapeStore", None)
1136        if getstore is not None:
1137            return getstore().OrigShapeStore() is not None
1138        else:
1139            return 0
1140  _method_command("layer_unjointable", _("&Unjoin Table..."), "LayerUnjoinTable",  _method_command("layer_unjointable", _("&Unjoin Table..."), "LayerUnjoinTable",
1141                  sensitive = _has_selected_layer)                  sensitive = _can_unjoin,
1142                    helptext = _("Undo the last join operation"))
1143    
1144    
1145    def _has_tables(context):
1146        return bool(context.session.Tables())
1147    
1148  # Table menu  # Table menu
1149  _method_command("table_open", _("&Open..."), "TableOpen")  _method_command("table_open", _("&Open..."), "TableOpen",
1150  _method_command("table_close", _("&Close"), "TableClose")                  helptext = _("Open a DBF-table from a file"))
1151  _method_command("table_show", _("&Show"), "TableShow")  _method_command("table_close", _("&Close..."), "TableClose",
1152  _method_command("table_join", _("&Join..."), "TableJoin")         sensitive = lambda context: bool(context.session.UnreferencedTables()),
1153                    helptext = _("Close one or more tables from a list"))
1154    _method_command("table_rename", _("&Rename..."), "TableRename",
1155                    sensitive = _has_tables,
1156                    helptext = _("Rename one or more tables"))
1157    _method_command("table_show", _("&Show..."), "TableShow",
1158                    sensitive = _has_tables,
1159                    helptext = _("Show one or more tables in a dialog"))
1160    _method_command("table_join", _("&Join..."), "TableJoin",
1161                    sensitive = _has_tables,
1162                    helptext = _("Join two tables creating a new one"))
1163    
1164  #  Export only under Windows ...  #  Export only under Windows ...
1165  map_menu = ["layer_add", "rasterlayer_add", "layer_remove", "map_rename",  map_menu = ["layer_add", "layer_add_db", "rasterlayer_add", "layer_remove",
1166                          None,                          None,
1167                            "map_rename",
1168                          "map_projection",                          "map_projection",
1169                          None,                          None,
1170                          "map_zoom_in_tool", "map_zoom_out_tool",                          "map_zoom_in_tool", "map_zoom_out_tool",
1171                          "map_pan_tool",                          "map_pan_tool",
1172                          "map_full_extent",                          "map_full_extent",
1173                          "layer_full_extent",                          "layer_full_extent",
1174                          "selected_full_extent",                          "selected_full_extent",
1175                          None,                          None,
# Line 953  main_menu = Menu("<main>", "<main>", Line 1186  main_menu = Menu("<main>", "<main>",
1186                   [Menu("file", _("&File"),                   [Menu("file", _("&File"),
1187                         ["new_session", "open_session", None,                         ["new_session", "open_session", None,
1188                          "save_session", "save_session_as", None,                          "save_session", "save_session_as", None,
1189                            "database_management", None,
1190                          "toggle_session_tree", None,                          "toggle_session_tree", None,
1191                          "exit"]),                          "exit"]),
1192                    Menu("map", _("&Map"), map_menu),                    Menu("map", _("&Map"), map_menu),
1193                    Menu("layer", _("&Layer"),                    Menu("layer", _("&Layer"),
1194                          ["layer_raise", "layer_lower",                         ["layer_rename", "layer_duplicate",
1195                            None,
1196                            "layer_raise", "layer_lower",
1197                          None,                          None,
1198                          "layer_show", "layer_hide",                          "layer_show", "layer_hide",
1199                          None,                          None,
# Line 969  main_menu = Menu("<main>", "<main>", Line 1205  main_menu = Menu("<main>", "<main>",
1205                          None,                          None,
1206                          "layer_properties"]),                          "layer_properties"]),
1207                    Menu("table", _("&Table"),                    Menu("table", _("&Table"),
1208                         ["table_open", "table_close",                         ["table_open", "table_close", "table_rename",
1209                         None,                         None,
1210                         "table_show",                         "table_show",
1211                         None,                         None,
# Line 986  main_toolbar = Menu("<toolbar>", "<toolb Line 1222  main_toolbar = Menu("<toolbar>", "<toolb
1222                       "selected_full_extent",                       "selected_full_extent",
1223                       None,                       None,
1224                       "map_identify_tool", "map_label_tool"])                       "map_identify_tool", "map_label_tool"])
1225    
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