/[thuban]/branches/WIP-pyshapelib-bramz/Thuban/UI/mainwindow.py
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revision 1074 by bh, Tue May 27 17:39:43 2003 UTC revision 2051 by frank, Wed Jan 21 17:09:15 2004 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.postgisdb import PostGISShapeStore, has_postgis_support
30    # 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
# Line 39  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 58  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.
# Line 97  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 104  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 126  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 357  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 384  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 412  class MainWindow(DockFrame): Line 430  class MainWindow(DockFrame):
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 439  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 499  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 = dlg.GetTable()
533                try:
534                    title = str(dbtable)
535    
536                    # Chose the correct Interface for the database type
537                    store = PostGISShapeStore(dbconn, dbtable)
538                    session.AddShapeStore(store)
539                    layer = Layer(title, store)
540                except:
541                    # Some error occured while initializing the layer
542                    self.RunMessageBox(_("Add Layer from database"),
543                                       _("Can't open the database table '%s'")
544                                       % dbtable)
545    
546                map = self.canvas.Map()
547    
548                has_layers = map.HasLayers()
549                map.AddLayer(layer)
550                if not has_layers:
551                    self.canvas.FitMapToWindow()
552    
553          dlg.Destroy()          dlg.Destroy()
554    
555      def RemoveLayer(self):      def RemoveLayer(self):
# Line 540  class MainWindow(DockFrame): Line 591  class MainWindow(DockFrame):
591          """Return true if a layer is currently selected"""          """Return true if a layer is currently selected"""
592          return self.canvas.HasSelectedLayer()          return self.canvas.HasSelectedLayer()
593    
594        def has_selected_shape_layer(self):
595            """Return true if a shape layer is currently selected"""
596            return isinstance(self.current_layer(), Layer)
597    
598      def has_selected_shapes(self):      def has_selected_shapes(self):
599          """Return true if a shape is currently selected"""          """Return true if a shape is currently selected"""
600          return self.canvas.HasSelectedShapes()          return self.canvas.HasSelectedShapes()
# Line 548  class MainWindow(DockFrame): Line 603  class MainWindow(DockFrame):
603          layer = self.current_layer()          layer = self.current_layer()
604          if layer is not None:          if layer is not None:
605              layer.SetVisible(0)              layer.SetVisible(0)
606            
607      def ShowLayer(self):      def ShowLayer(self):
608          layer = self.current_layer()          layer = self.current_layer()
609          if layer is not None:          if layer is not None:
610              layer.SetVisible(1)              layer.SetVisible(1)
611    
612        def DuplicateLayer(self):
613            """Ceate a new layer above the selected layer with the same shapestore
614            """
615            layer = self.current_layer()
616            if layer is not None and hasattr(layer, "ShapeStore"):
617                new_layer = Layer(_("Copy of `%s'") % layer.Title(),
618                                  layer.ShapeStore(),
619                                  projection = layer.GetProjection())
620                new_classification = copy.deepcopy(layer.GetClassification())
621                new_layer.SetClassification(new_classification)
622                self.Map().AddLayer(new_layer)
623    
624        def CanDuplicateLayer(self):
625            """Return whether the DuplicateLayer method can create a duplicate"""
626            layer = self.current_layer()
627            return layer is not None and hasattr(layer, "ShapeStore")
628    
629      def LayerShowTable(self):      def LayerShowTable(self):
630          layer = self.current_layer()          layer = self.current_layer()
631          if layer is not None:          if layer is not None:
632              table = layer.table              table = layer.ShapeStore().Table()
633              name = "table_view" + str(id(table))              name = "table_view" + str(id(table))
634              dialog = self.get_open_dialog(name)              dialog = self.get_open_dialog(name)
635              if dialog is None:              if dialog is None:
# Line 614  class MainWindow(DockFrame): Line 686  class MainWindow(DockFrame):
686          dialog = self.get_open_dialog(name)          dialog = self.get_open_dialog(name)
687    
688          if dialog is None:          if dialog is None:
689              dialog = Classifier(self, name, layer, group)              dialog = Classifier(self, name, self.Map(), layer, group)
690              self.add_dialog(name, dialog)              self.add_dialog(name, dialog)
691              dialog.Show()              dialog.Show()
692          dialog.Raise()          dialog.Raise()
# Line 658  class MainWindow(DockFrame): Line 730  class MainWindow(DockFrame):
730          return dialog is not None and dialog.IsShown()          return dialog is not None and dialog.IsShown()
731    
732      def TableOpen(self):      def TableOpen(self):
733          dlg = wxFileDialog(self, _("Open Table"), ".", "",          dlg = wxFileDialog(self, _("Open Table"),
734                               self.application.Path("data"), "",
735                             _("DBF Files (*.dbf)") + "|*.dbf|" +                             _("DBF Files (*.dbf)") + "|*.dbf|" +
736                             #_("CSV Files (*.csv)") + "|*.csv|" +                             #_("CSV Files (*.csv)") + "|*.csv|" +
737                             _("All Files (*.*)") + "|*.*",                             _("All Files (*.*)") + "|*.*",
# Line 674  class MainWindow(DockFrame): Line 747  class MainWindow(DockFrame):
747                                     _("Can't open the file '%s'.") % filename)                                     _("Can't open the file '%s'.") % filename)
748              else:              else:
749                  self.ShowTableView(table)                  self.ShowTableView(table)
750                    self.application.SetPath("data",filename)
751    
752      def TableClose(self):      def TableClose(self):
753          tables = self.application.session.UnreferencedTables()          tables = self.application.session.UnreferencedTables()
754    
755            lst = [(t.Title(), t) for t in tables]
756            lst.sort()
757            titles = [i[0] for i in lst]
758          dlg = wxMultipleChoiceDialog(self, _("Pick the tables to close:"),          dlg = wxMultipleChoiceDialog(self, _("Pick the tables to close:"),
759                                       _("Close Table"),                                       _("Close Table"), titles,
760                                       [t.Title() for t in tables],                                       size = (400, 300),
761                                       size = (400, 300), style=wxRESIZE_BORDER)                                       style = wxDEFAULT_DIALOG_STYLE |
762                                                 wxRESIZE_BORDER)
763          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wxID_OK:
764              for i in dlg.GetValue():              for i in dlg.GetValue():
765                  self.application.session.RemoveTable(tables[i])                  self.application.session.RemoveTable(lst[i][1])
766    
767    
768      def TableShow(self):      def TableShow(self):
# Line 695  class MainWindow(DockFrame): Line 773  class MainWindow(DockFrame):
773          """          """
774          tables = self.application.session.Tables()          tables = self.application.session.Tables()
775    
776            lst = [(t.Title(), t) for t in tables]
777            lst.sort()
778            titles = [i[0] for i in lst]
779          dlg = wxMultipleChoiceDialog(self, _("Pick the table to show:"),          dlg = wxMultipleChoiceDialog(self, _("Pick the table to show:"),
780                                       _("Show Table"),                                       _("Show Table"), titles,
781                                       [t.Title() for t in tables],                                       size = (400,300),
782                                       size = (400,300), style = wxRESIZE_BORDER)                                       style = wxDEFAULT_DIALOG_STYLE |
783                                                 wxRESIZE_BORDER)
784          if (dlg.ShowModal() == wxID_OK):          if (dlg.ShowModal() == wxID_OK):
785              for i in dlg.GetValue():              for i in dlg.GetValue():
786                  # XXX: if the table belongs to a layer, open a                  # XXX: if the table belongs to a layer, open a
787                  # LayerTableFrame instead of QueryTableFrame                  # LayerTableFrame instead of QueryTableFrame
788                  self.ShowTableView(tables[i])                  self.ShowTableView(lst[i][1])
789    
790      def TableJoin(self):      def TableJoin(self):
791          dlg = JoinDialog(self, _("Join Tables"), self.application.session)          dlg = JoinDialog(self, _("Join Tables"), self.application.session)
# Line 719  class MainWindow(DockFrame): Line 801  class MainWindow(DockFrame):
801                                                 table)                                                 table)
802              self.add_dialog(name, dialog)              self.add_dialog(name, dialog)
803              dialog.Show(True)              dialog.Show(True)
804          # FIXME: else bring dialog to front          dialog.Raise()
805    
806        def TableRename(self):
807            """Let the user rename a table"""
808    
809            # First, let the user select a table
810            tables = self.application.session.Tables()
811            lst = [(t.Title(), t) for t in tables]
812            lst.sort()
813            titles = [i[0] for i in lst]
814            dlg = wxMultipleChoiceDialog(self, _("Pick the table to rename:"),
815                                         _("Rename Table"), titles,
816                                         size = (400,300),
817                                         style = wxDEFAULT_DIALOG_STYLE |
818                                                 wxRESIZE_BORDER)
819            if (dlg.ShowModal() == wxID_OK):
820                to_rename = [lst[i][1] for i in dlg.GetValue()]
821                dlg.Destroy()
822            else:
823                to_rename = []
824    
825            # Second, let the user rename the layers
826            for table in to_rename:
827                dlg = wxTextEntryDialog(self, _("Table Title:"), _("Rename Table"),
828                                        table.Title())
829                try:
830                    if dlg.ShowModal() == wxID_OK:
831                        title = dlg.GetValue()
832                        if title != "":
833                            table.SetTitle(title)
834    
835                            # Make sure the session is marked as modified.
836                            # FIXME: This should be handled automatically,
837                            # but that requires more changes to the tables
838                            # than I have time for currently.
839                            self.application.session.changed()
840                finally:
841                    dlg.Destroy()
842    
843    
844      def ZoomInTool(self):      def ZoomInTool(self):
845          self.canvas.ZoomInTool()          self.canvas.ZoomInTool()
# Line 753  class MainWindow(DockFrame): Line 873  class MainWindow(DockFrame):
873          self.canvas.Print()          self.canvas.Print()
874    
875      def RenameMap(self):      def RenameMap(self):
876          dlg = wxTextEntryDialog(self, "Map Title: ", "Rename Map",          dlg = wxTextEntryDialog(self, _("Map Title:"), _("Rename Map"),
877                                  self.Map().Title())                                  self.Map().Title())
878          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wxID_OK:
879              title = dlg.GetValue()              title = dlg.GetValue()
880              if title != "":              if title != "":
881                  self.Map().SetTitle(title)                  self.Map().SetTitle(title)
                 self.__SetTitle(title)  
882    
883          dlg.Destroy()          dlg.Destroy()
884    
885        def RenameLayer(self):
886            """Let the user rename the currently selected layer"""
887            layer = self.current_layer()
888            if layer is not None:
889                dlg = wxTextEntryDialog(self, _("Layer Title:"), _("Rename Layer"),
890                                        layer.Title())
891                try:
892                    if dlg.ShowModal() == wxID_OK:
893                        title = dlg.GetValue()
894                        if title != "":
895                            layer.SetTitle(title)
896                finally:
897                    dlg.Destroy()
898    
899      def identify_view_on_demand(self, layer, shapes):      def identify_view_on_demand(self, layer, shapes):
900          """Subscribed to the canvas' SHAPES_SELECTED message          """Subscribed to the canvas' SHAPES_SELECTED message
901    
# Line 787  class MainWindow(DockFrame): Line 920  class MainWindow(DockFrame):
920                  # FIXME: bring dialog to front?                  # FIXME: bring dialog to front?
921                  pass                  pass
922    
923      def __SetTitle(self, title):      def title_changed(self, map):
924          self.SetTitle("Thuban - " + title)          """Subscribed to the canvas' TITLE_CHANGED messages"""
925            self.update_title()
926    
927        def update_title(self):
928            """Update the window's title according to it's current state.
929    
930            In this default implementation the title is 'Thuban - ' followed
931            by the map's title or simply 'Thuban' if there is not map.
932            Derived classes should override this method to get different
933            titles.
934    
935            This method is called automatically by other methods when the
936            title may have to change. For the methods implemented in this
937            class this usually only means that a different map has been set
938            or the current map's title has changed.
939            """
940            map = self.Map()
941            if map is not None:
942                title = _("Thuban - %s") % (map.Title(),)
943            else:
944                title = _("Thuban")
945            self.SetTitle(title)
946    
947    
948  #  #
949  # Define all the commands available in the main window  # Define all the commands available in the main window
# Line 830  def _has_selected_layer(context): Line 985  def _has_selected_layer(context):
985      """Return true if a layer is selected in the context"""      """Return true if a layer is selected in the context"""
986      return context.mainwindow.has_selected_layer()      return context.mainwindow.has_selected_layer()
987    
988    def _has_selected_shape_layer(context):
989        """Return true if a shape layer is selected in the context"""
990        return context.mainwindow.has_selected_shape_layer()
991    
992  def _has_selected_shapes(context):  def _has_selected_shapes(context):
993      """Return true if a layer is selected in the context"""      """Return true if a layer is selected in the context"""
994      return context.mainwindow.has_selected_shapes()      return context.mainwindow.has_selected_shapes()
# Line 856  def _has_legend_shown(context): Line 1015  def _has_legend_shown(context):
1015      """Return true if the legend window is shown"""      """Return true if the legend window is shown"""
1016      return context.mainwindow.LegendShown()      return context.mainwindow.LegendShown()
1017    
1018    def _has_gdal_support(context):
1019        """Return True if the GDAL is available"""
1020        return Thuban.Model.resource.has_gdal_support()
1021    
1022    def _has_dbconnections(context):
1023        """Return whether the the session has database connections"""
1024        return context.session.HasDBConnections()
1025    
1026    def _has_postgis_support(context):
1027        return has_postgis_support()
1028    
1029    
1030  # File menu  # File menu
1031  _method_command("new_session", _("&New Session"), "NewSession")  _method_command("new_session", _("&New Session"), "NewSession",
1032  _method_command("open_session", _("&Open Session..."), "OpenSession")                  helptext = _("Start a new session"))
1033  _method_command("save_session", _("&Save Session"), "SaveSession")  _method_command("open_session", _("&Open Session..."), "OpenSession",
1034  _method_command("save_session_as", _("Save Session &As..."), "SaveSessionAs")                  helptext = _("Open a session file"))
1035    _method_command("save_session", _("&Save Session"), "SaveSession",
1036                    helptext =_("Save this session to the file it was opened from"))
1037    _method_command("save_session_as", _("Save Session &As..."), "SaveSessionAs",
1038                    helptext = _("Save this session to a new file"))
1039  _method_command("toggle_session_tree", _("Session &Tree"), "ToggleSessionTree",  _method_command("toggle_session_tree", _("Session &Tree"), "ToggleSessionTree",
1040                  checked = _has_tree_window_shown)                  checked = _has_tree_window_shown,
1041                    helptext = _("Toggle on/off the session tree analysis window"))
1042  _method_command("toggle_legend", _("Legend"), "ToggleLegend",  _method_command("toggle_legend", _("Legend"), "ToggleLegend",
1043                  checked = _has_legend_shown)                  checked = _has_legend_shown,
1044  _method_command("exit", _("E&xit"), "Exit")                  helptext = _("Toggle Legend on/off"))
1045    _method_command("database_management", _("&Database Connections..."),
1046                    "DatabaseManagement",
1047                    sensitive = _has_postgis_support)
1048    _method_command("exit", _("E&xit"), "Exit",
1049                    helptext = _("Finish working with Thuban"))
1050    
1051  # Help menu  # Help menu
1052  _method_command("help_about", _("&About..."), "About")  _method_command("help_about", _("&About..."), "About",
1053                    helptext = _("Info about Thuban authors, version and modules"))
1054    
1055    
1056  # Map menu  # Map menu
1057  _method_command("map_projection", _("Pro&jection..."), "MapProjection")  _method_command("map_projection", _("Pro&jection..."), "MapProjection",
1058                    helptext = _("Set or change the map projection"))
1059    
1060  _tool_command("map_zoom_in_tool", _("&Zoom in"), "ZoomInTool", "ZoomInTool",  _tool_command("map_zoom_in_tool", _("&Zoom in"), "ZoomInTool", "ZoomInTool",
1061                helptext = _("Switch to map-mode 'zoom-in'"), icon = "zoom_in",                helptext = _("Switch to map-mode 'zoom-in'"), icon = "zoom_in",
# Line 892  _tool_command("map_label_tool", _("&Labe Line 1074  _tool_command("map_label_tool", _("&Labe
1074                helptext = _("Add/Remove labels"), icon = "label",                helptext = _("Add/Remove labels"), icon = "label",
1075                sensitive = _has_visible_map)                sensitive = _has_visible_map)
1076  _method_command("map_full_extent", _("&Full extent"), "FullExtent",  _method_command("map_full_extent", _("&Full extent"), "FullExtent",
1077                 helptext = _("Full Extent"), icon = "fullextent",                 helptext = _("Zoom to the full map extent"), icon = "fullextent",
1078                sensitive = _has_visible_map)                sensitive = _has_visible_map)
1079  _method_command("layer_full_extent", _("&Full layer extent"), "FullLayerExtent",  _method_command("layer_full_extent", _("&Full layer extent"), "FullLayerExtent",
1080                 helptext = _("Full Layer Extent"), icon = "fulllayerextent",                  helptext = _("Zoom to the full layer extent"),
1081                sensitive = _has_selected_layer)                  icon = "fulllayerextent", sensitive = _has_selected_layer)
1082  _method_command("selected_full_extent", _("&Full selection extent"), "FullSelectionExtent",  _method_command("selected_full_extent", _("&Full selection extent"),
1083                 helptext = _("Full Selection Extent"), icon = "fullselextent",                  "FullSelectionExtent",
1084                sensitive = _has_selected_shapes)                  helptext = _("Zoom to the full selection extent"),
1085                    icon = "fullselextent", sensitive = _has_selected_shapes)
1086  _method_command("map_export", _("E&xport"), "ExportMap",  _method_command("map_export", _("E&xport"), "ExportMap",
1087                      helptext = _("Export the map to file"))                  helptext = _("Export the map to file"))
1088  _method_command("map_print", _("Prin&t"), "PrintMap",  _method_command("map_print", _("Prin&t"), "PrintMap",
1089                  helptext = _("Print the map"))                  helptext = _("Print the map"))
1090  _method_command("map_rename", _("&Rename..."), "RenameMap",  _method_command("map_rename", _("&Rename..."), "RenameMap",
1091                  helptext = _("Rename the map"))                  helptext = _("Rename the map"))
1092  _method_command("layer_add", _("&Add Layer..."), "AddLayer",  _method_command("layer_add", _("&Add Layer..."), "AddLayer",
1093                  helptext = _("Add a new layer to active map"))                  helptext = _("Add a new layer to the map"))
1094  _method_command("rasterlayer_add", _("&Add Image Layer..."), "AddRasterLayer",  _method_command("rasterlayer_add", _("&Add Image Layer..."), "AddRasterLayer",
1095                  helptext = _("Add a new image layer to active map"))                  helptext = _("Add a new image layer to the map"),
1096                    sensitive = _has_gdal_support)
1097    _method_command("layer_add_db", _("Add &Database Layer..."), "AddDBLayer",
1098                    helptext = _("Add a new database layer to active map"),
1099                    sensitive = _has_dbconnections)
1100  _method_command("layer_remove", _("&Remove Layer"), "RemoveLayer",  _method_command("layer_remove", _("&Remove Layer"), "RemoveLayer",
1101                  helptext = _("Remove selected layer(s)"),                  helptext = _("Remove selected layer"),
1102                  sensitive = _can_remove_layer)                  sensitive = _can_remove_layer)
1103    
1104  # Layer menu  # Layer menu
1105  _method_command("layer_projection", _("Pro&jection..."), "LayerProjection",  _method_command("layer_projection", _("Pro&jection..."), "LayerProjection",
1106                    sensitive = _has_selected_layer,
1107                    helptext = _("Specify projection for selected layer"))
1108    _method_command("layer_duplicate", _("&Duplicate"), "DuplicateLayer",
1109                    helptext = _("Duplicate selected layer"),
1110              sensitive = lambda context: context.mainwindow.CanDuplicateLayer())
1111    _method_command("layer_rename", _("Re&name ..."), "RenameLayer",
1112                    helptext = _("Rename selected layer"),
1113                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1114  _method_command("layer_raise", _("&Raise"), "RaiseLayer",  _method_command("layer_raise", _("&Raise"), "RaiseLayer",
1115                  helptext = _("Raise selected layer(s)"),                  helptext = _("Raise selected layer"),
1116                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1117  _method_command("layer_lower", _("&Lower"), "LowerLayer",  _method_command("layer_lower", _("&Lower"), "LowerLayer",
1118                  helptext = _("Lower selected layer(s)"),                  helptext = _("Lower selected layer"),
1119                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1120  _method_command("layer_show", _("&Show"), "ShowLayer",  _method_command("layer_show", _("&Show"), "ShowLayer",
1121                  helptext = _("Make selected layer(s) visible"),                  helptext = _("Make selected layer visible"),
1122                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1123  _method_command("layer_hide", _("&Hide"), "HideLayer",  _method_command("layer_hide", _("&Hide"), "HideLayer",
1124                  helptext = _("Make selected layer(s) unvisible"),                  helptext = _("Make selected layer unvisible"),
1125                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1126  _method_command("layer_show_table", _("Show Ta&ble"), "LayerShowTable",  _method_command("layer_show_table", _("Show Ta&ble"), "LayerShowTable",
1127                  helptext = _("Show the selected layer's table"),                  helptext = _("Show the selected layer's table"),
1128                  sensitive = _has_selected_layer)                  sensitive = _has_selected_shape_layer)
1129  _method_command("layer_properties", _("&Properties..."), "LayerEditProperties",  _method_command("layer_properties", _("&Properties..."), "LayerEditProperties",
1130                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer,
1131                    helptext = _("Edit the properties of the selected layer"))
1132  _method_command("layer_jointable", _("&Join Table..."), "LayerJoinTable",  _method_command("layer_jointable", _("&Join Table..."), "LayerJoinTable",
1133                  sensitive = _has_selected_layer)                  sensitive = _has_selected_shape_layer,
1134                    helptext = _("Join and attach a table to the selected layer"))
1135    
1136  def _can_unjoin(context):  def _can_unjoin(context):
1137        """Return whether the Layer/Unjoin command can be executed.
1138    
1139        This is the case if a layer is selected and that layer has a
1140        shapestore that has an original shapestore.
1141        """
1142      layer = context.mainwindow.SelectedLayer()      layer = context.mainwindow.SelectedLayer()
1143      return bool(layer and layer.ShapeStore().OrigShapeStore() is not None)      if layer is None:
1144            return 0
1145        getstore = getattr(layer, "ShapeStore", None)
1146        if getstore is not None:
1147            return getstore().OrigShapeStore() is not None
1148        else:
1149            return 0
1150  _method_command("layer_unjointable", _("&Unjoin Table..."), "LayerUnjoinTable",  _method_command("layer_unjointable", _("&Unjoin Table..."), "LayerUnjoinTable",
1151                  sensitive = _can_unjoin)                  sensitive = _can_unjoin,
1152                    helptext = _("Undo the last join operation"))
1153    
1154    
1155    def _has_tables(context):
1156        return bool(context.session.Tables())
1157    
1158  # Table menu  # Table menu
1159  _method_command("table_open", _("&Open..."), "TableOpen")  _method_command("table_open", _("&Open..."), "TableOpen",
1160  _method_command("table_close", _("&Close"), "TableClose",                  helptext = _("Open a DBF-table from a file"))
1161         sensitive = lambda context: bool(context.session.UnreferencedTables()))  _method_command("table_close", _("&Close..."), "TableClose",
1162  _method_command("table_show", _("&Show"), "TableShow")         sensitive = lambda context: bool(context.session.UnreferencedTables()),
1163  _method_command("table_join", _("&Join..."), "TableJoin")                  helptext = _("Close one or more tables from a list"))
1164    _method_command("table_rename", _("&Rename..."), "TableRename",
1165                    sensitive = _has_tables,
1166                    helptext = _("Rename one or more tables"))
1167    _method_command("table_show", _("&Show..."), "TableShow",
1168                    sensitive = _has_tables,
1169                    helptext = _("Show one or more tables in a dialog"))
1170    _method_command("table_join", _("&Join..."), "TableJoin",
1171                    sensitive = _has_tables,
1172                    helptext = _("Join two tables creating a new one"))
1173    
1174  #  Export only under Windows ...  #  Export only under Windows ...
1175  map_menu = ["layer_add", "rasterlayer_add", "layer_remove", "map_rename",  map_menu = ["layer_add", "layer_add_db", "rasterlayer_add", "layer_remove",
1176                          None,                          None,
1177                            "map_rename",
1178                          "map_projection",                          "map_projection",
1179                          None,                          None,
1180                          "map_zoom_in_tool", "map_zoom_out_tool",                          "map_zoom_in_tool", "map_zoom_out_tool",
1181                          "map_pan_tool",                          "map_pan_tool",
1182                          "map_full_extent",                          "map_full_extent",
1183                          "layer_full_extent",                          "layer_full_extent",
1184                          "selected_full_extent",                          "selected_full_extent",
1185                          None,                          None,
# Line 974  main_menu = Menu("<main>", "<main>", Line 1196  main_menu = Menu("<main>", "<main>",
1196                   [Menu("file", _("&File"),                   [Menu("file", _("&File"),
1197                         ["new_session", "open_session", None,                         ["new_session", "open_session", None,
1198                          "save_session", "save_session_as", None,                          "save_session", "save_session_as", None,
1199                            "database_management", None,
1200                          "toggle_session_tree", None,                          "toggle_session_tree", None,
1201                          "exit"]),                          "exit"]),
1202                    Menu("map", _("&Map"), map_menu),                    Menu("map", _("&Map"), map_menu),
1203                    Menu("layer", _("&Layer"),                    Menu("layer", _("&Layer"),
1204                          ["layer_raise", "layer_lower",                         ["layer_rename", "layer_duplicate",
1205                            None,
1206                            "layer_raise", "layer_lower",
1207                          None,                          None,
1208                          "layer_show", "layer_hide",                          "layer_show", "layer_hide",
1209                          None,                          None,
# Line 990  main_menu = Menu("<main>", "<main>", Line 1215  main_menu = Menu("<main>", "<main>",
1215                          None,                          None,
1216                          "layer_properties"]),                          "layer_properties"]),
1217                    Menu("table", _("&Table"),                    Menu("table", _("&Table"),
1218                         ["table_open", "table_close",                         ["table_open", "table_close", "table_rename",
1219                         None,                         None,
1220                         "table_show",                         "table_show",
1221                         None,                         None,
# Line 1007  main_toolbar = Menu("<toolbar>", "<toolb Line 1232  main_toolbar = Menu("<toolbar>", "<toolb
1232                       "selected_full_extent",                       "selected_full_extent",
1233                       None,                       None,
1234                       "map_identify_tool", "map_label_tool"])                       "map_identify_tool", "map_label_tool"])
1235    
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