/[thuban]/branches/WIP-pyshapelib-bramz/Thuban/UI/mainwindow.py
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revision 829 by jonathan, Tue May 6 12:06:38 2003 UTC revision 1782 by bh, Mon Oct 6 17:31:54 2003 UTC
# Line 2  Line 2 
2  # Authors:  # Authors:
3  # Jan-Oliver Wagner <[email protected]>  # Jan-Oliver Wagner <[email protected]>
4  # Bernhard Herzog <[email protected]>  # Bernhard Herzog <[email protected]>
5    # Frank Koormann <[email protected]>
6  #  #
7  # This program is free software under the GPL (>=v2)  # This program is free software under the GPL (>=v2)
8  # Read the file COPYING coming with Thuban for details.  # Read the file COPYING coming with Thuban for details.
# Line 11  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 *
22    
23  import Thuban  import Thuban
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  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 36  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
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 54  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",
74                           }                           }
75    
76      def __init__(self, parent, ID, title, application, interactor,      def __init__(self, parent, ID, title, application, interactor,
# Line 91  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 98  class MainWindow(DockFrame): Line 110  class MainWindow(DockFrame):
110    
111          self.init_dialogs()          self.init_dialogs()
112    
113          EVT_CLOSE(self, self._OnClose)          self.ShowLegend()
114    
115            EVT_CLOSE(self, self.OnClose)
116    
117      def Subscribe(self, channel, *args):      def Subscribe(self, channel, *args):
118          """Subscribe a function to a message channel.          """Subscribe a function to a message channel.
# Line 351  class MainWindow(DockFrame): Line 365  class MainWindow(DockFrame):
365              result = wxID_NO              result = wxID_NO
366          return result          return result
367    
     def prepare_new_session(self):  
         for d in self.dialogs.values():  
             if not isinstance(d, tree.SessionTreeView):  
                 d.Close()  
   
368      def NewSession(self):      def NewSession(self):
369          self.save_modified_session()          if self.save_modified_session() != wxID_CANCEL:
370          self.prepare_new_session()              self.application.SetSession(create_empty_session())
         self.application.SetSession(create_empty_session())  
371    
372      def OpenSession(self):      def OpenSession(self):
373          self.save_modified_session()          if self.save_modified_session() != wxID_CANCEL:
374          dlg = wxFileDialog(self, _("Open Session"), ".", "", "*.thuban", wxOPEN)              dlg = wxFileDialog(self, _("Open Session"), ".", "",
375          if dlg.ShowModal() == wxID_OK:                                 "Thuban Session File (*.thuban)|*.thuban",
376              self.prepare_new_session()                                 wxOPEN)
377              self.application.OpenSession(dlg.GetPath())              if dlg.ShowModal() == wxID_OK:
378          dlg.Destroy()                  self.application.OpenSession(dlg.GetPath(),
379                                                 self.run_db_param_dialog)
380                dlg.Destroy()
381    
382        def run_db_param_dialog(self, parameters, message):
383            dlg = DBDialog(self, _("DB Connection Parameters"), parameters,
384                           message)
385            return dlg.RunDialog()
386    
387      def SaveSession(self):      def SaveSession(self):
388          if self.application.session.filename == None:          if self.application.session.filename == None:
# Line 377  class MainWindow(DockFrame): Line 392  class MainWindow(DockFrame):
392    
393      def SaveSessionAs(self):      def SaveSessionAs(self):
394          dlg = wxFileDialog(self, _("Save Session As"), ".", "",          dlg = wxFileDialog(self, _("Save Session As"), ".", "",
395                             "*.thuban", wxSAVE|wxOVERWRITE_PROMPT)                             "Thuban Session File (*.thuban)|*.thuban",
396                               wxSAVE|wxOVERWRITE_PROMPT)
397          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wxID_OK:
398              self.application.session.SetFilename(dlg.GetPath())              self.application.session.SetFilename(dlg.GetPath())
399              self.application.SaveSession()              self.application.SaveSession()
# Line 386  class MainWindow(DockFrame): Line 402  class MainWindow(DockFrame):
402      def Exit(self):      def Exit(self):
403          self.Close(False)          self.Close(False)
404    
405      def _OnClose(self, event):      def OnClose(self, event):
406          result = self.save_modified_session(can_veto = event.CanVeto())          result = self.save_modified_session(can_veto = event.CanVeto())
407          if result == wxID_CANCEL:          if result == wxID_CANCEL:
408              event.Veto()              event.Veto()
# Line 395  class MainWindow(DockFrame): Line 411  class MainWindow(DockFrame):
411              # wx's destroy event, but that isn't implemented for wxGTK              # wx's destroy event, but that isn't implemented for wxGTK
412              # yet.              # yet.
413              self.canvas.Unsubscribe(VIEW_POSITION, self.view_position_changed)              self.canvas.Unsubscribe(VIEW_POSITION, self.view_position_changed)
414              DockFrame._OnClose(self, event)              DockFrame.OnClose(self, event)
415                for dlg in self.dialogs.values():
416                    dlg.Destroy()
417                self.canvas.Destroy()
418              self.Destroy()              self.Destroy()
419    
420      def SetMap(self, map):      def SetMap(self, map):
421          self.canvas.SetMap(map)          self.canvas.SetMap(map)
422          self.__SetTitle(map.Title())          self.update_title()
423    
424          dialog = self.FindRegisteredDock("legend")          dialog = self.FindRegisteredDock("legend")
425          if dialog is not None:          if dialog is not None:
# Line 427  class MainWindow(DockFrame): Line 446  class MainWindow(DockFrame):
446          return self.get_open_dialog("session_tree") is not None          return self.get_open_dialog("session_tree") is not None
447    
448      def About(self):      def About(self):
449          self.RunMessageBox(_("About"),          dlg = About(self)
450                             _("Thuban v%s\n"          dlg.ShowModal()
451                              #"Build Date: %s\n"          dlg.Destroy()
452                              "\n"  
453                              "Thuban is a program for\n"      def DatabaseManagement(self):
454                              "exploring geographic data.\n"          name = "dbmanagement"
455                              "Copyright (C) 2001-2003 Intevation GmbH.\n"          dialog = self.get_open_dialog(name)
456                              "Thuban is licensed under the GNU GPL"          if dialog is None:
457                             % __ThubanVersion__), #__BuildDate__)),              map = self.canvas.Map()
458                             wxOK | wxICON_INFORMATION)              dialog = DBFrame(self, name, self.application.Session())
459                self.add_dialog(name, dialog)
460                dialog.Show()
461            dialog.Raise()
462    
463      def AddLayer(self):      def AddLayer(self):
464          dlg = wxFileDialog(self, _("Select a data file"), ".", "", "*.*",          dlg = wxFileDialog(self, _("Select one or more data files"), ".", "",
465                               _("Shapefiles (*.shp)") + "|*.shp|" +
466                               _("All Files (*.*)") + "|*.*",
467                               wxOPEN | wxMULTIPLE)
468            if dlg.ShowModal() == wxID_OK:
469                filenames = dlg.GetPaths()
470                for filename in filenames:
471                    title = os.path.splitext(os.path.basename(filename))[0]
472                    map = self.canvas.Map()
473                    has_layers = map.HasLayers()
474                    try:
475                        store = self.application.Session().OpenShapefile(filename)
476                    except IOError:
477                        # the layer couldn't be opened
478                        self.RunMessageBox(_("Add Layer"),
479                                           _("Can't open the file '%s'.")%filename)
480                    else:
481                        layer = Layer(title, store)
482                        map.AddLayer(layer)
483                        if not has_layers:
484                            # if we're adding a layer to an empty map, fit the
485                            # new map to the window
486                            self.canvas.FitMapToWindow()
487            dlg.Destroy()
488    
489        def AddRasterLayer(self):
490            dlg = wxFileDialog(self, _("Select an image file"), ".", "", "*.*",
491                             wxOPEN)                             wxOPEN)
492          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wxID_OK:
493              filename = dlg.GetPath()              filename = dlg.GetPath()
494              title = os.path.splitext(os.path.basename(filename))[0]              title = os.path.splitext(os.path.basename(filename))[0]
             store = self.application.Session().OpenShapefile(filename)  
             layer = Layer(title, store)  
495              map = self.canvas.Map()              map = self.canvas.Map()
496              has_layers = map.HasLayers()              has_layers = map.HasLayers()
497              try:              try:
498                  map.AddLayer(layer)                  layer = RasterLayer(title, filename)
499              except IOError:              except IOError:
500                  # the layer couldn't be opened                  # the layer couldn't be opened
501                  self.RunMessageBox(_("Add Layer"),                  self.RunMessageBox(_("Add Image Layer"),
502                                     _("Can't open the file '%s'.") % filename)                                     _("Can't open the file '%s'.") % filename)
503              else:              else:
504                    map.AddLayer(layer)
505                  if not has_layers:                  if not has_layers:
506                      # if we're adding a layer to an empty map, fit the                      # if we're adding a layer to an empty map, fit the
507                      # new map to the window                      # new map to the window
508                      self.canvas.FitMapToWindow()                      self.canvas.FitMapToWindow()
509          dlg.Destroy()          dlg.Destroy()
510    
511        def AddDBLayer(self):
512            """Add a layer read from a database"""
513            session = self.application.Session()
514            dlg = ChooseDBTableDialog(self, self.application.Session())
515    
516            if dlg.ShowModal() == wxID_OK:
517                dbconn, dbtable = dlg.GetTable()
518                try:
519                    title = str(dbtable)
520    
521                    # Chose the correct Interface for the database type
522                    store = PostGISShapeStore(dbconn, dbtable)
523                    session.AddShapeStore(store)
524                    layer = Layer(title, store)
525                except:
526                    # Some error occured while initializing the layer
527                    self.RunMessageBox(_("Add Layer from database"),
528                                       _("Can't open the database table '%s'")
529                                       % dbtable)
530    
531                map = self.canvas.Map()
532    
533                has_layers = map.HasLayers()
534                map.AddLayer(layer)
535                if not has_layers:
536                    self.canvas.FitMapToWindow()
537    
538            dlg.Destroy()
539    
540      def RemoveLayer(self):      def RemoveLayer(self):
541          layer = self.current_layer()          layer = self.current_layer()
542          if layer is not None:          if layer is not None:
# Line 504  class MainWindow(DockFrame): Line 580  class MainWindow(DockFrame):
580          """Return true if a shape is currently selected"""          """Return true if a shape is currently selected"""
581          return self.canvas.HasSelectedShapes()          return self.canvas.HasSelectedShapes()
582    
     def choose_color(self):  
         """Run the color selection dialog and return the selected color.  
   
         If the user cancels, return None.  
         """  
         dlg = wxColourDialog(self)  
         color = None  
         if dlg.ShowModal() == wxID_OK:  
             data = dlg.GetColourData()  
             wxc = data.GetColour()  
             color = Color(wxc.Red() / 255.0,  
                           wxc.Green() / 255.0,  
                           wxc.Blue() / 255.0)  
         dlg.Destroy()  
         return color  
   
583      def HideLayer(self):      def HideLayer(self):
584          layer = self.current_layer()          layer = self.current_layer()
585          if layer is not None:          if layer is not None:
586              layer.SetVisible(0)              layer.SetVisible(0)
587            
588      def ShowLayer(self):      def ShowLayer(self):
589          layer = self.current_layer()          layer = self.current_layer()
590          if layer is not None:          if layer is not None:
591              layer.SetVisible(1)              layer.SetVisible(1)
592    
593        def DuplicateLayer(self):
594            """Ceate a new layer above the selected layer with the same shapestore
595            """
596            layer = self.current_layer()
597            if layer is not None and hasattr(layer, "ShapeStore"):
598                new_layer = Layer(_("Copy of `%s'") % layer.Title(),
599                                  layer.ShapeStore(),
600                                  projection = layer.GetProjection())
601                new_classification = copy.deepcopy(layer.GetClassification())
602                new_layer.SetClassification(new_classification)
603                self.Map().AddLayer(new_layer)
604    
605        def CanDuplicateLayer(self):
606            """Return whether the DuplicateLayer method can create a duplicate"""
607            layer = self.current_layer()
608            return layer is not None and hasattr(layer, "ShapeStore")
609    
610      def LayerShowTable(self):      def LayerShowTable(self):
611          layer = self.current_layer()          layer = self.current_layer()
612          if layer is not None:          if layer is not None:
613              table = layer.table              table = layer.ShapeStore().Table()
614              name = "table_view" + str(id(table))              name = "table_view" + str(id(table))
615              dialog = self.get_open_dialog(name)              dialog = self.get_open_dialog(name)
616              if dialog is None:              if dialog is None:
617                  dialog = tableview.LayerTableFrame(self, name,                  dialog = tableview.LayerTableFrame(self, name,
618                                                 _("Table: %s") % layer.Title(),                                           _("Layer Table: %s") % layer.Title(),
619                                                     layer, table)                                           layer, table)
620                  self.add_dialog(name, dialog)                  self.add_dialog(name, dialog)
621                  dialog.Show(true)                  dialog.Show(True)
622              else:              else:
623                  # FIXME: bring dialog to front here                  # FIXME: bring dialog to front here
624                  pass                  pass
# Line 590  class MainWindow(DockFrame): Line 667  class MainWindow(DockFrame):
667          dialog = self.get_open_dialog(name)          dialog = self.get_open_dialog(name)
668    
669          if dialog is None:          if dialog is None:
670              dialog = Classifier(self, name, layer, group)              dialog = Classifier(self, name, self.Map(), layer, group)
671              self.add_dialog(name, dialog)              self.add_dialog(name, dialog)
672              dialog.Show()              dialog.Show()
673          dialog.Raise()          dialog.Raise()
674    
675        def LayerJoinTable(self):
676            layer = self.canvas.SelectedLayer()
677            if layer is not None:
678                dlg = JoinDialog(self, _("Join Layer with Table"),
679                                 self.application.session,
680                                 layer = layer)
681                dlg.ShowModal()
682    
683        def LayerUnjoinTable(self):
684            layer = self.canvas.SelectedLayer()
685            if layer is not None:
686                orig_store = layer.ShapeStore().OrigShapeStore()
687                if orig_store:
688                    layer.SetShapeStore(orig_store)
689    
690      def ShowLegend(self):      def ShowLegend(self):
691          if not self.LegendShown():          if not self.LegendShown():
# Line 619  class MainWindow(DockFrame): Line 710  class MainWindow(DockFrame):
710          dialog = self.FindRegisteredDock("legend")          dialog = self.FindRegisteredDock("legend")
711          return dialog is not None and dialog.IsShown()          return dialog is not None and dialog.IsShown()
712    
713        def TableOpen(self):
714            dlg = wxFileDialog(self, _("Open Table"), ".", "",
715                               _("DBF Files (*.dbf)") + "|*.dbf|" +
716                               #_("CSV Files (*.csv)") + "|*.csv|" +
717                               _("All Files (*.*)") + "|*.*",
718                               wxOPEN)
719            if dlg.ShowModal() == wxID_OK:
720                filename = dlg.GetPath()
721                dlg.Destroy()
722                try:
723                    table = self.application.session.OpenTableFile(filename)
724                except IOError:
725                    # the layer couldn't be opened
726                    self.RunMessageBox(_("Open Table"),
727                                       _("Can't open the file '%s'.") % filename)
728                else:
729                    self.ShowTableView(table)
730    
731        def TableClose(self):
732            tables = self.application.session.UnreferencedTables()
733    
734            lst = [(t.Title(), t) for t in tables]
735            lst.sort()
736            titles = [i[0] for i in lst]
737            dlg = wxMultipleChoiceDialog(self, _("Pick the tables to close:"),
738                                         _("Close Table"), titles,
739                                         size = (400, 300),
740                                         style = wxDEFAULT_DIALOG_STYLE |
741                                                 wxRESIZE_BORDER)
742            if dlg.ShowModal() == wxID_OK:
743                for i in dlg.GetValue():
744                    self.application.session.RemoveTable(lst[i][1])
745    
746    
747        def TableShow(self):
748            """Offer a multi-selection dialog for tables to be displayed
749    
750            The windows for the selected tables are opened or brought to
751            the front.
752            """
753            tables = self.application.session.Tables()
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 table to show:"),
759                                         _("Show Table"), titles,
760                                         size = (400,300),
761                                         style = wxDEFAULT_DIALOG_STYLE |
762                                                 wxRESIZE_BORDER)
763            if (dlg.ShowModal() == wxID_OK):
764                for i in dlg.GetValue():
765                    # XXX: if the table belongs to a layer, open a
766                    # LayerTableFrame instead of QueryTableFrame
767                    self.ShowTableView(lst[i][1])
768    
769        def TableJoin(self):
770            dlg = JoinDialog(self, _("Join Tables"), self.application.session)
771            dlg.ShowModal()
772    
773        def ShowTableView(self, table):
774            """Open a table view for the table and optionally"""
775            name = "table_view%d" % id(table)
776            dialog = self.get_open_dialog(name)
777            if dialog is None:
778                dialog = tableview.QueryTableFrame(self, name,
779                                                   _("Table: %s") % table.Title(),
780                                                   table)
781                self.add_dialog(name, dialog)
782                dialog.Show(True)
783            dialog.Raise()
784    
785        def TableRename(self):
786            """Let the user rename a table"""
787    
788            # First, let the user select a table
789            tables = self.application.session.Tables()
790            lst = [(t.Title(), t) for t in tables]
791            lst.sort()
792            titles = [i[0] for i in lst]
793            dlg = wxMultipleChoiceDialog(self, _("Pick the table to rename:"),
794                                         _("Rename Table"), titles,
795                                         size = (400,300),
796                                         style = wxDEFAULT_DIALOG_STYLE |
797                                                 wxRESIZE_BORDER)
798            if (dlg.ShowModal() == wxID_OK):
799                to_rename = [lst[i][1] for i in dlg.GetValue()]
800                dlg.Destroy()
801            else:
802                to_rename = []
803    
804            # Second, let the user rename the layers
805            for table in to_rename:
806                dlg = wxTextEntryDialog(self, "Table Title: ", "Rename Table",
807                                        table.Title())
808                try:
809                    if dlg.ShowModal() == wxID_OK:
810                        title = dlg.GetValue()
811                        if title != "":
812                            table.SetTitle(title)
813    
814                            # Make sure the session is marked as modified.
815                            # FIXME: This should be handled automatically,
816                            # but that requires more changes to the tables
817                            # than I have time for currently.
818                            self.application.session.changed()
819                finally:
820                    dlg.Destroy()
821    
822    
823      def ZoomInTool(self):      def ZoomInTool(self):
824          self.canvas.ZoomInTool()          self.canvas.ZoomInTool()
825    
# Line 644  class MainWindow(DockFrame): Line 845  class MainWindow(DockFrame):
845      def FullSelectionExtent(self):      def FullSelectionExtent(self):
846          self.canvas.FitSelectedToWindow()          self.canvas.FitSelectedToWindow()
847    
848        def ExportMap(self):
849            self.canvas.Export()
850    
851      def PrintMap(self):      def PrintMap(self):
852          self.canvas.Print()          self.canvas.Print()
853    
# Line 654  class MainWindow(DockFrame): Line 858  class MainWindow(DockFrame):
858              title = dlg.GetValue()              title = dlg.GetValue()
859              if title != "":              if title != "":
860                  self.Map().SetTitle(title)                  self.Map().SetTitle(title)
                 self.__SetTitle(title)  
861    
862          dlg.Destroy()          dlg.Destroy()
863    
864        def RenameLayer(self):
865            """Let the user rename the currently selected layer"""
866            layer = self.current_layer()
867            if layer is not None:
868                dlg = wxTextEntryDialog(self, "Layer Title: ", "Rename Layer",
869                                        layer.Title())
870                try:
871                    if dlg.ShowModal() == wxID_OK:
872                        title = dlg.GetValue()
873                        if title != "":
874                            layer.SetTitle(title)
875                finally:
876                    dlg.Destroy()
877    
878      def identify_view_on_demand(self, layer, shapes):      def identify_view_on_demand(self, layer, shapes):
879          """Subscribed to the canvas' SHAPES_SELECTED message          """Subscribed to the canvas' SHAPES_SELECTED message
880    
# Line 682  class MainWindow(DockFrame): Line 899  class MainWindow(DockFrame):
899                  # FIXME: bring dialog to front?                  # FIXME: bring dialog to front?
900                  pass                  pass
901    
902      def __SetTitle(self, title):      def title_changed(self, map):
903          self.SetTitle("Thuban - " + title)          """Subscribed to the canvas' TITLE_CHANGED messages"""
904            self.update_title()
905    
906        def update_title(self):
907            """Update the window's title according to it's current state.
908    
909            In this default implementation the title is 'Thuban - ' followed
910            by the map's title or simply 'Thuban' if there is not map.
911            Derived classes should override this method to get different
912            titles.
913    
914            This method is called automatically by other methods when the
915            title may have to change. For the methods implemented in this
916            class this usually only means that a different map has been set
917            or the current map's title has changed.
918            """
919            map = self.Map()
920            if map is not None:
921                title = _("Thuban - %s") % (map.Title(),)
922            else:
923                title = _("Thuban")
924            self.SetTitle(title)
925    
926    
927  #  #
928  # Define all the commands available in the main window  # Define all the commands available in the main window
# Line 751  def _has_legend_shown(context): Line 990  def _has_legend_shown(context):
990      """Return true if the legend window is shown"""      """Return true if the legend window is shown"""
991      return context.mainwindow.LegendShown()      return context.mainwindow.LegendShown()
992    
993    def _has_gdal_support(context):
994        """Return True if the GDAL is available"""
995        return Thuban.Model.resource.has_gdal_support()
996    
997    def _has_dbconnections(context):
998        """Return whether the the session has database connections"""
999        return context.session.HasDBConnections()
1000    
1001    def _has_postgis_support(context):
1002        return has_postgis_support()
1003    
1004    
1005  # File menu  # File menu
1006  _method_command("new_session", _("&New Session"), "NewSession")  _method_command("new_session", _("&New Session"), "NewSession",
1007  _method_command("open_session", _("&Open Session..."), "OpenSession")                  helptext = _("Start a new session"))
1008  _method_command("save_session", _("&Save Session"), "SaveSession")  _method_command("open_session", _("&Open Session..."), "OpenSession",
1009  _method_command("save_session_as", _("Save Session &As..."), "SaveSessionAs")                  helptext = _("Open a session file"))
1010    _method_command("save_session", _("&Save Session"), "SaveSession",
1011                    helptext =_("Save this session to the file it was opened from"))
1012    _method_command("save_session_as", _("Save Session &As..."), "SaveSessionAs",
1013                    helptext = _("Save this session to a new file"))
1014  _method_command("toggle_session_tree", _("Session &Tree"), "ToggleSessionTree",  _method_command("toggle_session_tree", _("Session &Tree"), "ToggleSessionTree",
1015                  checked = _has_tree_window_shown)                  checked = _has_tree_window_shown,
1016                    helptext = _("Toggle on/off the session tree analysis window"))
1017  _method_command("toggle_legend", _("Legend"), "ToggleLegend",  _method_command("toggle_legend", _("Legend"), "ToggleLegend",
1018                  checked = _has_legend_shown)                  checked = _has_legend_shown,
1019  _method_command("exit", _("E&xit"), "Exit")                  helptext = _("Toggle Legend on/off"))
1020    _method_command("database_management", _("&Database Connections..."),
1021                    "DatabaseManagement",
1022                    sensitive = _has_postgis_support)
1023    _method_command("exit", _("E&xit"), "Exit",
1024                    helptext = _("Finish working with Thuban"))
1025    
1026  # Help menu  # Help menu
1027  _method_command("help_about", _("&About..."), "About")  _method_command("help_about", _("&About..."), "About",
1028                    helptext = _("Info about Thuban authors, version and modules"))
1029    
1030    
1031  # Map menu  # Map menu
1032  _method_command("map_projection", _("Pro&jection..."), "MapProjection")  _method_command("map_projection", _("Pro&jection..."), "MapProjection",
1033                    helptext = _("Set or change the map projection"))
1034    
1035  _tool_command("map_zoom_in_tool", _("&Zoom in"), "ZoomInTool", "ZoomInTool",  _tool_command("map_zoom_in_tool", _("&Zoom in"), "ZoomInTool", "ZoomInTool",
1036                helptext = _("Switch to map-mode 'zoom-in'"), icon = "zoom_in",                helptext = _("Switch to map-mode 'zoom-in'"), icon = "zoom_in",
# Line 787  _tool_command("map_label_tool", _("&Labe Line 1049  _tool_command("map_label_tool", _("&Labe
1049                helptext = _("Add/Remove labels"), icon = "label",                helptext = _("Add/Remove labels"), icon = "label",
1050                sensitive = _has_visible_map)                sensitive = _has_visible_map)
1051  _method_command("map_full_extent", _("&Full extent"), "FullExtent",  _method_command("map_full_extent", _("&Full extent"), "FullExtent",
1052                 helptext = _("Full Extent"), icon = "fullextent",                 helptext = _("Zoom to the full map extent"), icon = "fullextent",
1053                sensitive = _has_visible_map)                sensitive = _has_visible_map)
1054  _method_command("layer_full_extent", _("&Full layer extent"), "FullLayerExtent",  _method_command("layer_full_extent", _("&Full layer extent"), "FullLayerExtent",
1055                 helptext = _("Full Layer Extent"), icon = "fulllayerextent",                  helptext = _("Zoom to the full layer extent"),
1056                sensitive = _has_selected_layer)                  icon = "fulllayerextent", sensitive = _has_selected_layer)
1057  _method_command("selected_full_extent", _("&Full selection extent"), "FullSelectionExtent",  _method_command("selected_full_extent", _("&Full selection extent"),
1058                 helptext = _("Full Selection Extent"), icon = "fullselextent",                  "FullSelectionExtent",
1059                sensitive = _has_selected_shapes)                  helptext = _("Zoom to the full selection extent"),
1060                    icon = "fullselextent", sensitive = _has_selected_shapes)
1061    _method_command("map_export", _("E&xport"), "ExportMap",
1062                    helptext = _("Export the map to file"))
1063  _method_command("map_print", _("Prin&t"), "PrintMap",  _method_command("map_print", _("Prin&t"), "PrintMap",
1064                  helptext = _("Print the map"))                  helptext = _("Print the map"))
1065  _method_command("map_rename", _("&Rename..."), "RenameMap",  _method_command("map_rename", _("&Rename..."), "RenameMap",
1066                  helptext = _("Rename the map"))                  helptext = _("Rename the map"))
1067  _method_command("layer_add", _("&Add Layer..."), "AddLayer",  _method_command("layer_add", _("&Add Layer..."), "AddLayer",
1068                  helptext = _("Add a new layer to active map"))                  helptext = _("Add a new layer to the map"))
1069    _method_command("rasterlayer_add", _("&Add Image Layer..."), "AddRasterLayer",
1070                    helptext = _("Add a new image layer to the map"),
1071                    sensitive = _has_gdal_support)
1072    _method_command("layer_add_db", _("Add &Database Layer..."), "AddDBLayer",
1073                    helptext = _("Add a new database layer to active map"),
1074                    sensitive = _has_dbconnections)
1075  _method_command("layer_remove", _("&Remove Layer"), "RemoveLayer",  _method_command("layer_remove", _("&Remove Layer"), "RemoveLayer",
1076                  helptext = _("Remove selected layer(s)"),                  helptext = _("Remove selected layer"),
1077                  sensitive = _can_remove_layer)                  sensitive = _can_remove_layer)
1078    
1079  # Layer menu  # Layer menu
1080  _method_command("layer_projection", _("Pro&jection..."), "LayerProjection",  _method_command("layer_projection", _("Pro&jection..."), "LayerProjection",
1081                    sensitive = _has_selected_layer,
1082                    helptext = _("Specify projection for selected layer"))
1083    _method_command("layer_duplicate", _("&Duplicate"), "DuplicateLayer",
1084                    helptext = _("Duplicate selected layer"),
1085              sensitive = lambda context: context.mainwindow.CanDuplicateLayer())
1086    _method_command("layer_rename", _("Re&name ..."), "RenameLayer",
1087                    helptext = _("Rename selected layer"),
1088                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1089  _method_command("layer_raise", _("&Raise"), "RaiseLayer",  _method_command("layer_raise", _("&Raise"), "RaiseLayer",
1090                  helptext = _("Raise selected layer(s)"),                  helptext = _("Raise selected layer"),
1091                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1092  _method_command("layer_lower", _("&Lower"), "LowerLayer",  _method_command("layer_lower", _("&Lower"), "LowerLayer",
1093                  helptext = _("Lower selected layer(s)"),                  helptext = _("Lower selected layer"),
1094                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1095  _method_command("layer_show", _("&Show"), "ShowLayer",  _method_command("layer_show", _("&Show"), "ShowLayer",
1096                  helptext = _("Make selected layer(s) visible"),                  helptext = _("Make selected layer visible"),
1097                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1098  _method_command("layer_hide", _("&Hide"), "HideLayer",  _method_command("layer_hide", _("&Hide"), "HideLayer",
1099                  helptext = _("Make selected layer(s) unvisible"),                  helptext = _("Make selected layer unvisible"),
1100                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1101  _method_command("layer_show_table", _("Show Ta&ble"), "LayerShowTable",  _method_command("layer_show_table", _("Show Ta&ble"), "LayerShowTable",
1102                  helptext = _("Show the selected layer's table"),                  helptext = _("Show the selected layer's table"),
1103                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1104  _method_command("layer_properties", _("&Properties..."), "LayerEditProperties",  _method_command("layer_properties", _("&Properties..."), "LayerEditProperties",
1105                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer,
1106                    helptext = _("Edit the properties of the selected layer"))
1107    _method_command("layer_jointable", _("&Join Table..."), "LayerJoinTable",
1108                    sensitive = _has_selected_layer,
1109                    helptext = _("Join and attach a table to the selected layer"))
1110    
1111  # the menu structure  def _can_unjoin(context):
1112  main_menu = Menu("<main>", "<main>",      """Return whether the Layer/Unjoin command can be executed.
1113                   [Menu("file", _("&File"),  
1114                         ["new_session", "open_session", None,      This is the case if a layer is selected and that layer has a
1115                          "save_session", "save_session_as", None,      shapestore that has an original shapestore.
1116                          "toggle_session_tree", None,      """
1117                          "exit"]),      layer = context.mainwindow.SelectedLayer()
1118                    Menu("map", _("&Map"),      if layer is None:
1119                         ["layer_add", "layer_remove", "map_rename",          return 0
1120        getstore = getattr(layer, "ShapeStore", None)
1121        if getstore is not None:
1122            return getstore().OrigShapeStore() is not None
1123        else:
1124            return 0
1125    _method_command("layer_unjointable", _("&Unjoin Table..."), "LayerUnjoinTable",
1126                    sensitive = _can_unjoin,
1127                    helptext = _("Undo the last join operation"))
1128    
1129    
1130    def _has_tables(context):
1131        return bool(context.session.Tables())
1132    
1133    # Table menu
1134    _method_command("table_open", _("&Open..."), "TableOpen",
1135                    helptext = _("Open a DBF-table from a file"))
1136    _method_command("table_close", _("&Close..."), "TableClose",
1137           sensitive = lambda context: bool(context.session.UnreferencedTables()),
1138                    helptext = _("Close one or more tables from a list"))
1139    _method_command("table_rename", _("&Rename..."), "TableRename",
1140                    sensitive = _has_tables,
1141                    helptext = _("Rename one or more tables"))
1142    _method_command("table_show", _("&Show..."), "TableShow",
1143                    sensitive = _has_tables,
1144                    helptext = _("Show one or more tables in a dialog"))
1145    _method_command("table_join", _("&Join..."), "TableJoin",
1146                    sensitive = _has_tables,
1147                    helptext = _("Join two tables creating a new one"))
1148    
1149    #  Export only under Windows ...
1150    map_menu = ["layer_add", "layer_add_db", "rasterlayer_add", "layer_remove",
1151                          None,                          None,
1152                            "map_rename",
1153                          "map_projection",                          "map_projection",
1154                          None,                          None,
1155                          "map_zoom_in_tool", "map_zoom_out_tool",                          "map_zoom_in_tool", "map_zoom_out_tool",
1156                          "map_pan_tool",                          "map_pan_tool",
1157                          "map_full_extent",                          "map_full_extent",
1158                          "layer_full_extent",                          "layer_full_extent",
1159                          "selected_full_extent",                          "selected_full_extent",
1160                          None,                          None,
1161                          "map_identify_tool", "map_label_tool",                          "map_identify_tool", "map_label_tool",
1162                          None,                          None,
1163                          "toggle_legend",                          "toggle_legend",
1164                          None,                          None]
1165                          "map_print"]),  if wxPlatform == '__WXMSW__':
1166        map_menu.append("map_export")
1167    map_menu.append("map_print")
1168    
1169    # the menu structure
1170    main_menu = Menu("<main>", "<main>",
1171                     [Menu("file", _("&File"),
1172                           ["new_session", "open_session", None,
1173                            "save_session", "save_session_as", None,
1174                            "database_management", None,
1175                            "toggle_session_tree", None,
1176                            "exit"]),
1177                      Menu("map", _("&Map"), map_menu),
1178                    Menu("layer", _("&Layer"),                    Menu("layer", _("&Layer"),
1179                          ["layer_raise", "layer_lower",                         ["layer_rename", "layer_duplicate",
1180                            None,
1181                            "layer_raise", "layer_lower",
1182                          None,                          None,
1183                          "layer_show", "layer_hide",                          "layer_show", "layer_hide",
1184                          None,                          None,
1185                            "layer_projection",
1186                            None,
1187                          "layer_show_table",                          "layer_show_table",
1188                            "layer_jointable",
1189                            "layer_unjointable",
1190                          None,                          None,
                         "layer_projection",  
1191                          "layer_properties"]),                          "layer_properties"]),
1192                      Menu("table", _("&Table"),
1193                           ["table_open", "table_close", "table_rename",
1194                           None,
1195                           "table_show",
1196                           None,
1197                           "table_join"]),
1198                    Menu("help", _("&Help"),                    Menu("help", _("&Help"),
1199                         ["help_about"])])                         ["help_about"])])
1200    
# Line 870  main_toolbar = Menu("<toolbar>", "<toolb Line 1207  main_toolbar = Menu("<toolbar>", "<toolb
1207                       "selected_full_extent",                       "selected_full_extent",
1208                       None,                       None,
1209                       "map_identify_tool", "map_label_tool"])                       "map_identify_tool", "map_label_tool"])
1210    
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