/[thuban]/branches/WIP-pyshapelib-bramz/Thuban/UI/mainwindow.py
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revision 821 by jonathan, Mon May 5 18:20:15 2003 UTC revision 2363 by joey, Fri Oct 1 18:07:14 2004 UTC
# Line 1  Line 1 
1  # Copyright (C) 2001, 2002, 2003 by Intevation GmbH  # Copyright (C) 2001, 2002, 2003, 2004 by Intevation GmbH
2  # Authors:  # Authors:
3  # Jan-Oliver Wagner <[email protected]>  # Jan-Oliver Wagner <[email protected]>
4  # Bernhard Herzog <[email protected]>  # Bernhard Herzog <[email protected]>
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 120  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 351  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          self.save_modified_session()          if self.save_modified_session() != wxID_CANCEL:
377          self.prepare_new_session()              self.application.SetSession(create_empty_session())
         self.application.SetSession(create_empty_session())  
378    
379      def OpenSession(self):      def OpenSession(self):
380          self.save_modified_session()          if self.save_modified_session() != wxID_CANCEL:
381          dlg = wxFileDialog(self, _("Open Session"), ".", "", "*.thuban", wxOPEN)              dlg = wxFileDialog(self, _("Open Session"),
382          if dlg.ShowModal() == wxID_OK:                                 self.application.Path("data"), "",
383              self.prepare_new_session()                                 "Thuban Session File (*.thuban)|*.thuban",
384              self.application.OpenSession(dlg.GetPath())                                 wxOPEN)
385          dlg.Destroy()              if dlg.ShowModal() == wxID_OK:
386                    self.application.OpenSession(dlg.GetPath(),
387                                                 self.run_db_param_dialog)
388                    self.application.SetPath("data", dlg.GetPath())
389                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:
# Line 376  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                             "*.thuban", wxSAVE|wxOVERWRITE_PROMPT)                             self.application.Path("data"), "",
405                               "Thuban Session File (*.thuban)|*.thuban",
406                               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):
414          self.Close(False)          self.Close(False)
415    
416      def _OnClose(self, event):      def OnClose(self, event):
417          result = self.save_modified_session(can_veto = event.CanVeto())          result = self.save_modified_session(can_veto = event.CanVeto())
418          if result == wxID_CANCEL:          if result == wxID_CANCEL:
419              event.Veto()              event.Veto()
# Line 395  class MainWindow(DockFrame): Line 422  class MainWindow(DockFrame):
422              # wx's destroy event, but that isn't implemented for wxGTK              # wx's destroy event, but that isn't implemented for wxGTK
423              # yet.              # yet.
424              self.canvas.Unsubscribe(VIEW_POSITION, self.view_position_changed)              self.canvas.Unsubscribe(VIEW_POSITION, self.view_position_changed)
425              DockFrame._OnClose(self, event)              DockFrame.OnClose(self, event)
426                for dlg in self.dialogs.values():
427                    dlg.Destroy()
428                self.canvas.Destroy()
429              self.Destroy()              self.Destroy()
430    
431      def SetMap(self, map):      def SetMap(self, map):
432          self.canvas.SetMap(map)          self.canvas.SetMap(map)
433          self.__SetTitle(map.Title())          self.update_title()
434    
435          dialog = self.FindRegisteredDock("legend")          dialog = self.FindRegisteredDock("legend")
436          if dialog is not None:          if dialog is not None:
# Line 427  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 v%s\n"          dlg.ShowModal()
462                              #"Build Date: %s\n"          dlg.Destroy()
463                              "\n"  
464                              "Thuban is a program for\n"      def DatabaseManagement(self):
465                              "exploring geographic data.\n"          name = "dbmanagement"
466                              "Copyright (C) 2001-2003 Intevation GmbH.\n"          dialog = self.get_open_dialog(name)
467                              "Thuban is licensed under the GNU GPL"          if dialog is None:
468                             % __ThubanVersion__), #__BuildDate__)),              map = self.canvas.Map()
469                             wxOK | wxICON_INFORMATION)              dialog = DBFrame(self, name, self.application.Session())
470                self.add_dialog(name, dialog)
471                dialog.Show()
472            dialog.Raise()
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                               self.application.Path("data"), "",
477                               _("Shapefiles (*.shp)") + "|*.shp;*.SHP|" +
478                               _("All Files (*.*)") + "|*.*",
479                               wxOPEN | wxMULTIPLE)
480            if dlg.ShowModal() == wxID_OK:
481                filenames = dlg.GetPaths()
482                for filename in filenames:
483                    title = os.path.splitext(os.path.basename(filename))[0]
484                    map = self.canvas.Map()
485                    has_layers = map.HasLayers()
486                    try:
487                        store = self.application.Session().OpenShapefile(filename)
488                    except IOError:
489                        # the layer couldn't be opened
490                        self.RunMessageBox(_("Add Layer"),
491                                           _("Can't open the file '%s'.")%filename)
492                    else:
493                        layer = Layer(title, store)
494                        map.AddLayer(layer)
495                        if not has_layers:
496                            # if we're adding a layer to an empty map, fit the
497                            # new map to the window
498                            self.canvas.FitMapToWindow()
499                        self.application.SetPath("data",filename)
500            dlg.Destroy()
501    
502        def AddRasterLayer(self):
503            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()
508              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)  
509              map = self.canvas.Map()              map = self.canvas.Map()
510              has_layers = map.HasLayers()              has_layers = map.HasLayers()
511              try:              try:
512                  map.AddLayer(layer)                  layer = RasterLayer(title, filename)
513              except IOError:              except IOError:
514                  # the layer couldn't be opened                  # the layer couldn't be opened
515                  self.RunMessageBox(_("Add Layer"),                  self.RunMessageBox(_("Add Image Layer"),
516                                     _("Can't open the file '%s'.") % filename)                                     _("Can't open the file '%s'.") % filename)
517              else:              else:
518                    map.AddLayer(layer)
519                  if not has_layers:                  if not has_layers:
520                      # if we're adding a layer to an empty map, fit the                      # if we're adding a layer to an empty map, fit the
521                      # new map to the window                      # new map to the window
522                      self.canvas.FitMapToWindow()                      self.canvas.FitMapToWindow()
523                    self.application.SetPath("data", filename)
524            dlg.Destroy()
525    
526        def AddDBLayer(self):
527            """Add a layer read from a database"""
528            session = self.application.Session()
529            dlg = ChooseDBTableDialog(self, self.application.Session())
530    
531            if dlg.ShowModal() == wxID_OK:
532                dbconn, dbtable, id_column, geo_column = dlg.GetTable()
533                try:
534                    title = str(dbtable)
535    
536                    # Chose the correct Interface for the database type
537                    store = session.OpenDBShapeStore(dbconn, dbtable,
538                                                     id_column = id_column,
539                                                     geometry_column = geo_column)
540                    layer = Layer(title, store)
541                except:
542                    # Some error occured while initializing the layer
543                    self.RunMessageBox(_("Add Layer from database"),
544                                       _("Can't open the database table '%s'")
545                                       % dbtable)
546                    return
547    
548                map = self.canvas.Map()
549    
550                has_layers = map.HasLayers()
551                map.AddLayer(layer)
552                if not has_layers:
553                    self.canvas.FitMapToWindow()
554    
555          dlg.Destroy()          dlg.Destroy()
556    
557      def RemoveLayer(self):      def RemoveLayer(self):
# Line 479  class MainWindow(DockFrame): Line 572  class MainWindow(DockFrame):
572              return self.canvas.Map().CanRemoveLayer(layer)              return self.canvas.Map().CanRemoveLayer(layer)
573          return False          return False
574    
575        def LayerToTop(self):
576            layer = self.current_layer()
577            if layer is not None:
578                self.canvas.Map().MoveLayerToTop(layer)
579    
580      def RaiseLayer(self):      def RaiseLayer(self):
581          layer = self.current_layer()          layer = self.current_layer()
582          if layer is not None:          if layer is not None:
# Line 489  class MainWindow(DockFrame): Line 587  class MainWindow(DockFrame):
587          if layer is not None:          if layer is not None:
588              self.canvas.Map().LowerLayer(layer)              self.canvas.Map().LowerLayer(layer)
589    
590        def LayerToBottom(self):
591            layer = self.current_layer()
592            if layer is not None:
593                self.canvas.Map().MoveLayerToBottom(layer)
594    
595      def current_layer(self):      def current_layer(self):
596          """Return the currently selected layer.          """Return the currently selected layer.
597    
# Line 500  class MainWindow(DockFrame): Line 603  class MainWindow(DockFrame):
603          """Return true if a layer is currently selected"""          """Return true if a layer is currently selected"""
604          return self.canvas.HasSelectedLayer()          return self.canvas.HasSelectedLayer()
605    
606      def choose_color(self):      def has_selected_shape_layer(self):
607          """Run the color selection dialog and return the selected color.          """Return true if a shape layer is currently selected"""
608            return isinstance(self.current_layer(), Layer)
609          If the user cancels, return None.  
610          """      def has_selected_shapes(self):
611          dlg = wxColourDialog(self)          """Return true if a shape is currently selected"""
612          color = None          return self.canvas.HasSelectedShapes()
         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  
613    
614      def HideLayer(self):      def HideLayer(self):
615          layer = self.current_layer()          layer = self.current_layer()
616          if layer is not None:          if layer is not None:
617              layer.SetVisible(0)              layer.SetVisible(False)
618            
619      def ShowLayer(self):      def ShowLayer(self):
620          layer = self.current_layer()          layer = self.current_layer()
621          if layer is not None:          if layer is not None:
622              layer.SetVisible(1)              layer.SetVisible(True)
623    
624        def ToggleLayerVisibility(self):
625            layer = self.current_layer()
626            layer.SetVisible(not layer.Visible())
627    
628        def DuplicateLayer(self):
629            """Ceate a new layer above the selected layer with the same shapestore
630            """
631            layer = self.current_layer()
632            if layer is not None and hasattr(layer, "ShapeStore"):
633                new_layer = Layer(_("Copy of `%s'") % layer.Title(),
634                                  layer.ShapeStore(),
635                                  projection = layer.GetProjection())
636                new_classification = copy.deepcopy(layer.GetClassification())
637                new_layer.SetClassification(new_classification)
638                self.Map().AddLayer(new_layer)
639    
640        def CanDuplicateLayer(self):
641            """Return whether the DuplicateLayer method can create a duplicate"""
642            layer = self.current_layer()
643            return layer is not None and hasattr(layer, "ShapeStore")
644    
645      def LayerShowTable(self):      def LayerShowTable(self):
646            """
647            Present a TableView Window for the current layer.
648            In case the window is already open, bring it to the front.
649            In case, there is no active layer, do nothing.
650            In case, the layer has no ShapeStore, do nothing.
651            """
652          layer = self.current_layer()          layer = self.current_layer()
653          if layer is not None:          if layer is not None:
654              table = layer.table              if not hasattr(layer, "ShapeStore"):
655                    return
656                table = layer.ShapeStore().Table()
657              name = "table_view" + str(id(table))              name = "table_view" + str(id(table))
658              dialog = self.get_open_dialog(name)              dialog = self.get_open_dialog(name)
659              if dialog is None:              if dialog is None:
660                  dialog = tableview.LayerTableFrame(self, name,                  dialog = tableview.LayerTableFrame(self, name,
661                                                 _("Table: %s") % layer.Title(),                                           _("Layer Table: %s") % layer.Title(),
662                                                     layer, table)                                           layer, table)
663                  self.add_dialog(name, dialog)                  self.add_dialog(name, dialog)
664                  dialog.Show(true)                  dialog.Show(True)
665              else:              else:
666                  # FIXME: bring dialog to front here                  dialog.Raise()
                 pass  
667    
668      def MapProjection(self):      def MapProjection(self):
669    
# Line 591  class MainWindow(DockFrame): Line 714  class MainWindow(DockFrame):
714              dialog.Show()              dialog.Show()
715          dialog.Raise()          dialog.Raise()
716    
717        def LayerJoinTable(self):
718            layer = self.canvas.SelectedLayer()
719            if layer is not None:
720                dlg = JoinDialog(self, _("Join Layer with Table"),
721                                 self.application.session,
722                                 layer = layer)
723                dlg.ShowModal()
724    
725        def LayerUnjoinTable(self):
726            layer = self.canvas.SelectedLayer()
727            if layer is not None:
728                orig_store = layer.ShapeStore().OrigShapeStore()
729                if orig_store:
730                    layer.SetShapeStore(orig_store)
731    
732      def ShowLegend(self):      def ShowLegend(self):
733          if not self.LegendShown():          if not self.LegendShown():
# Line 615  class MainWindow(DockFrame): Line 752  class MainWindow(DockFrame):
752          dialog = self.FindRegisteredDock("legend")          dialog = self.FindRegisteredDock("legend")
753          return dialog is not None and dialog.IsShown()          return dialog is not None and dialog.IsShown()
754    
755        def TableOpen(self):
756            dlg = wxFileDialog(self, _("Open Table"),
757                               self.application.Path("data"), "",
758                               _("DBF Files (*.dbf)") + "|*.dbf|" +
759                               #_("CSV Files (*.csv)") + "|*.csv|" +
760                               _("All Files (*.*)") + "|*.*",
761                               wxOPEN)
762            if dlg.ShowModal() == wxID_OK:
763                filename = dlg.GetPath()
764                dlg.Destroy()
765                try:
766                    table = self.application.session.OpenTableFile(filename)
767                except IOError:
768                    # the layer couldn't be opened
769                    self.RunMessageBox(_("Open Table"),
770                                       _("Can't open the file '%s'.") % filename)
771                else:
772                    self.ShowTableView(table)
773                    self.application.SetPath("data",filename)
774    
775        def TableClose(self):
776            tables = self.application.session.UnreferencedTables()
777    
778            lst = [(t.Title(), t) for t in tables]
779            lst.sort()
780            titles = [i[0] for i in lst]
781            dlg = wxMultipleChoiceDialog(self, _("Pick the tables to close:"),
782                                         _("Close Table"), titles,
783                                         size = (400, 300),
784                                         style = wxDEFAULT_DIALOG_STYLE |
785                                                 wxRESIZE_BORDER)
786            if dlg.ShowModal() == wxID_OK:
787                for i in dlg.GetValue():
788                    self.application.session.RemoveTable(lst[i][1])
789    
790    
791        def TableShow(self):
792            """Offer a multi-selection dialog for tables to be displayed
793    
794            The windows for the selected tables are opened or brought to
795            the front.
796            """
797            tables = self.application.session.Tables()
798    
799            lst = [(t.Title(), t) for t in tables]
800            lst.sort()
801            titles = [i[0] for i in lst]
802            dlg = wxMultipleChoiceDialog(self, _("Pick the table to show:"),
803                                         _("Show Table"), titles,
804                                         size = (400,300),
805                                         style = wxDEFAULT_DIALOG_STYLE |
806                                                 wxRESIZE_BORDER)
807            if (dlg.ShowModal() == wxID_OK):
808                for i in dlg.GetValue():
809                    # XXX: if the table belongs to a layer, open a
810                    # LayerTableFrame instead of QueryTableFrame
811                    self.ShowTableView(lst[i][1])
812    
813        def TableJoin(self):
814            dlg = JoinDialog(self, _("Join Tables"), self.application.session)
815            dlg.ShowModal()
816    
817        def ShowTableView(self, table):
818            """Open a table view for the table and optionally"""
819            name = "table_view%d" % id(table)
820            dialog = self.get_open_dialog(name)
821            if dialog is None:
822                dialog = tableview.QueryTableFrame(self, name,
823                                                   _("Table: %s") % table.Title(),
824                                                   table)
825                self.add_dialog(name, dialog)
826                dialog.Show(True)
827            dialog.Raise()
828    
829        def TableRename(self):
830            """Let the user rename a table"""
831    
832            # First, let the user select a table
833            tables = self.application.session.Tables()
834            lst = [(t.Title(), t) for t in tables]
835            lst.sort()
836            titles = [i[0] for i in lst]
837            dlg = wxMultipleChoiceDialog(self, _("Pick the table to rename:"),
838                                         _("Rename Table"), titles,
839                                         size = (400,300),
840                                         style = wxDEFAULT_DIALOG_STYLE |
841                                                 wxRESIZE_BORDER)
842            if (dlg.ShowModal() == wxID_OK):
843                to_rename = [lst[i][1] for i in dlg.GetValue()]
844                dlg.Destroy()
845            else:
846                to_rename = []
847    
848            # Second, let the user rename the layers
849            for table in to_rename:
850                dlg = wxTextEntryDialog(self, _("Table Title:"), _("Rename Table"),
851                                        table.Title())
852                try:
853                    if dlg.ShowModal() == wxID_OK:
854                        title = dlg.GetValue()
855                        if title != "":
856                            table.SetTitle(title)
857    
858                            # Make sure the session is marked as modified.
859                            # FIXME: This should be handled automatically,
860                            # but that requires more changes to the tables
861                            # than I have time for currently.
862                            self.application.session.changed()
863                finally:
864                    dlg.Destroy()
865    
866    
867      def ZoomInTool(self):      def ZoomInTool(self):
868          self.canvas.ZoomInTool()          self.canvas.ZoomInTool()
869    
# Line 637  class MainWindow(DockFrame): Line 886  class MainWindow(DockFrame):
886      def FullLayerExtent(self):      def FullLayerExtent(self):
887          self.canvas.FitLayerToWindow(self.current_layer())          self.canvas.FitLayerToWindow(self.current_layer())
888    
889        def FullSelectionExtent(self):
890            self.canvas.FitSelectedToWindow()
891    
892        def ExportMap(self):
893            self.canvas.Export()
894    
895      def PrintMap(self):      def PrintMap(self):
896          self.canvas.Print()          self.canvas.Print()
897    
898      def RenameMap(self):      def RenameMap(self):
899          dlg = wxTextEntryDialog(self, "Map Title: ", "Rename Map",          dlg = wxTextEntryDialog(self, _("Map Title:"), _("Rename Map"),
900                                  self.Map().Title())                                  self.Map().Title())
901          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wxID_OK:
902              title = dlg.GetValue()              title = dlg.GetValue()
903              if title != "":              if title != "":
904                  self.Map().SetTitle(title)                  self.Map().SetTitle(title)
                 self.__SetTitle(title)  
905    
906          dlg.Destroy()          dlg.Destroy()
907    
908        def RenameLayer(self):
909            """Let the user rename the currently selected layer"""
910            layer = self.current_layer()
911            if layer is not None:
912                dlg = wxTextEntryDialog(self, _("Layer Title:"), _("Rename Layer"),
913                                        layer.Title())
914                try:
915                    if dlg.ShowModal() == wxID_OK:
916                        title = dlg.GetValue()
917                        if title != "":
918                            layer.SetTitle(title)
919                finally:
920                    dlg.Destroy()
921    
922      def identify_view_on_demand(self, layer, shapes):      def identify_view_on_demand(self, layer, shapes):
923          """Subscribed to the canvas' SHAPES_SELECTED message          """Subscribed to the canvas' SHAPES_SELECTED message
924    
# Line 675  class MainWindow(DockFrame): Line 943  class MainWindow(DockFrame):
943                  # FIXME: bring dialog to front?                  # FIXME: bring dialog to front?
944                  pass                  pass
945    
946      def __SetTitle(self, title):      def title_changed(self, map):
947          self.SetTitle("Thuban - " + title)          """Subscribed to the canvas' TITLE_CHANGED messages"""
948            self.update_title()
949    
950        def update_title(self):
951            """Update the window's title according to it's current state.
952    
953            In this default implementation the title is 'Thuban - ' followed
954            by the map's title or simply 'Thuban' if there is not map.
955            Derived classes should override this method to get different
956            titles.
957    
958            This method is called automatically by other methods when the
959            title may have to change. For the methods implemented in this
960            class this usually only means that a different map has been set
961            or the current map's title has changed.
962            """
963            map = self.Map()
964            if map is not None:
965                title = _("Thuban - %s") % (map.Title(),)
966            else:
967                title = _("Thuban")
968            self.SetTitle(title)
969    
970    
971  #  #
972  # Define all the commands available in the main window  # Define all the commands available in the main window
# Line 718  def _has_selected_layer(context): Line 1008  def _has_selected_layer(context):
1008      """Return true if a layer is selected in the context"""      """Return true if a layer is selected in the context"""
1009      return context.mainwindow.has_selected_layer()      return context.mainwindow.has_selected_layer()
1010    
1011    def _has_selected_layer_visible(context):
1012        """Return true if a layer is selected in the context which is
1013        visible."""
1014        if context.mainwindow.has_selected_layer():
1015            layer = context.mainwindow.current_layer()
1016            if layer.Visible(): return True
1017        return False
1018    
1019    def _has_selected_shape_layer(context):
1020        """Return true if a shape layer is selected in the context"""
1021        return context.mainwindow.has_selected_shape_layer()
1022    
1023    def _has_selected_shapes(context):
1024        """Return true if a layer is selected in the context"""
1025        return context.mainwindow.has_selected_shapes()
1026    
1027  def _can_remove_layer(context):  def _can_remove_layer(context):
1028      return context.mainwindow.CanRemoveLayer()      return context.mainwindow.CanRemoveLayer()
1029    
# Line 733  def _has_visible_map(context): Line 1039  def _has_visible_map(context):
1039      if map is not None:      if map is not None:
1040          for layer in map.Layers():          for layer in map.Layers():
1041              if layer.Visible():              if layer.Visible():
1042                  return 1                  return True
1043      return 0      return False
1044    
1045  def _has_legend_shown(context):  def _has_legend_shown(context):
1046      """Return true if the legend window is shown"""      """Return true if the legend window is shown"""
1047      return context.mainwindow.LegendShown()      return context.mainwindow.LegendShown()
1048    
1049    def _has_gdal_support(context):
1050        """Return True if the GDAL is available"""
1051        return Thuban.Model.resource.has_gdal_support()
1052    
1053    def _has_dbconnections(context):
1054        """Return whether the the session has database connections"""
1055        return context.session.HasDBConnections()
1056    
1057    def _has_postgis_support(context):
1058        return has_postgis_support()
1059    
1060    
1061  # File menu  # File menu
1062  _method_command("new_session", _("&New Session"), "NewSession")  _method_command("new_session", _("&New Session"), "NewSession",
1063  _method_command("open_session", _("&Open Session..."), "OpenSession")                  helptext = _("Start a new session"))
1064  _method_command("save_session", _("&Save Session"), "SaveSession")  _method_command("open_session", _("&Open Session..."), "OpenSession",
1065  _method_command("save_session_as", _("Save Session &As..."), "SaveSessionAs")                  helptext = _("Open a session file"))
1066    _method_command("save_session", _("&Save Session"), "SaveSession",
1067                    helptext =_("Save this session to the file it was opened from"))
1068    _method_command("save_session_as", _("Save Session &As..."), "SaveSessionAs",
1069                    helptext = _("Save this session to a new file"))
1070  _method_command("toggle_session_tree", _("Session &Tree"), "ToggleSessionTree",  _method_command("toggle_session_tree", _("Session &Tree"), "ToggleSessionTree",
1071                  checked = _has_tree_window_shown)                  checked = _has_tree_window_shown,
1072                    helptext = _("Toggle on/off the session tree analysis window"))
1073  _method_command("toggle_legend", _("Legend"), "ToggleLegend",  _method_command("toggle_legend", _("Legend"), "ToggleLegend",
1074                  checked = _has_legend_shown)                  checked = _has_legend_shown,
1075  _method_command("exit", _("E&xit"), "Exit")                  helptext = _("Toggle Legend on/off"))
1076    _method_command("database_management", _("&Database Connections..."),
1077                    "DatabaseManagement",
1078                    sensitive = _has_postgis_support)
1079    _method_command("exit", _("E&xit"), "Exit",
1080                    helptext = _("Finish working with Thuban"))
1081    
1082  # Help menu  # Help menu
1083  _method_command("help_about", _("&About..."), "About")  _method_command("help_about", _("&About..."), "About",
1084                    helptext = _("Info about Thuban authors, version and modules"))
1085    
1086    
1087  # Map menu  # Map menu
1088  _method_command("map_projection", _("Pro&jection..."), "MapProjection")  _method_command("map_projection", _("Pro&jection..."), "MapProjection",
1089                    helptext = _("Set or change the map projection"))
1090    
1091  _tool_command("map_zoom_in_tool", _("&Zoom in"), "ZoomInTool", "ZoomInTool",  _tool_command("map_zoom_in_tool", _("&Zoom in"), "ZoomInTool", "ZoomInTool",
1092                helptext = _("Switch to map-mode 'zoom-in'"), icon = "zoom_in",                helptext = _("Switch to map-mode 'zoom-in'"), icon = "zoom_in",
# Line 776  _tool_command("map_label_tool", _("&Labe Line 1105  _tool_command("map_label_tool", _("&Labe
1105                helptext = _("Add/Remove labels"), icon = "label",                helptext = _("Add/Remove labels"), icon = "label",
1106                sensitive = _has_visible_map)                sensitive = _has_visible_map)
1107  _method_command("map_full_extent", _("&Full extent"), "FullExtent",  _method_command("map_full_extent", _("&Full extent"), "FullExtent",
1108                 helptext = _("Full Extent"), icon = "fullextent",                 helptext = _("Zoom to the full map extent"), icon = "fullextent",
1109                sensitive = _has_visible_map)                sensitive = _has_visible_map)
1110  _method_command("layer_full_extent", _("&Full layer extent"), "FullLayerExtent",  _method_command("layer_full_extent", _("&Full layer extent"), "FullLayerExtent",
1111                 helptext = _("Full Layer Extent"), icon = "fullextent",                  helptext = _("Zoom to the full layer extent"),
1112                sensitive = _has_selected_layer)                  icon = "fulllayerextent", sensitive = _has_selected_layer)
1113    _method_command("selected_full_extent", _("&Full selection extent"),
1114                    "FullSelectionExtent",
1115                    helptext = _("Zoom to the full selection extent"),
1116                    icon = "fullselextent", sensitive = _has_selected_shapes)
1117    _method_command("map_export", _("E&xport"), "ExportMap",
1118                    helptext = _("Export the map to file"))
1119  _method_command("map_print", _("Prin&t"), "PrintMap",  _method_command("map_print", _("Prin&t"), "PrintMap",
1120                  helptext = _("Print the map"))                  helptext = _("Print the map"))
1121  _method_command("map_rename", _("&Rename..."), "RenameMap",  _method_command("map_rename", _("&Rename..."), "RenameMap",
1122                  helptext = _("Rename the map"))                  helptext = _("Rename the map"))
1123  _method_command("layer_add", _("&Add Layer..."), "AddLayer",  _method_command("layer_add", _("&Add Layer..."), "AddLayer",
1124                  helptext = _("Add a new layer to active map"))                  helptext = _("Add a new layer to the map"))
1125    _method_command("rasterlayer_add", _("&Add Image Layer..."), "AddRasterLayer",
1126                    helptext = _("Add a new image layer to the map"),
1127                    sensitive = _has_gdal_support)
1128    _method_command("layer_add_db", _("Add &Database Layer..."), "AddDBLayer",
1129                    helptext = _("Add a new database layer to active map"),
1130                    sensitive = _has_dbconnections)
1131  _method_command("layer_remove", _("&Remove Layer"), "RemoveLayer",  _method_command("layer_remove", _("&Remove Layer"), "RemoveLayer",
1132                  helptext = _("Remove selected layer(s)"),                  helptext = _("Remove selected layer"),
1133                  sensitive = _can_remove_layer)                  sensitive = _can_remove_layer)
1134    
1135  # Layer menu  # Layer menu
1136  _method_command("layer_projection", _("Pro&jection..."), "LayerProjection",  _method_command("layer_projection", _("Pro&jection..."), "LayerProjection",
1137                    sensitive = _has_selected_layer,
1138                    helptext = _("Specify projection for selected layer"))
1139    _method_command("layer_duplicate", _("&Duplicate"), "DuplicateLayer",
1140                    helptext = _("Duplicate selected layer"),
1141              sensitive = lambda context: context.mainwindow.CanDuplicateLayer())
1142    _method_command("layer_rename", _("Re&name ..."), "RenameLayer",
1143                    helptext = _("Rename selected layer"),
1144                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1145  _method_command("layer_raise", _("&Raise"), "RaiseLayer",  _method_command("layer_raise", _("&Raise"), "RaiseLayer",
1146                  helptext = _("Raise selected layer(s)"),                  helptext = _("Raise selected layer"),
1147                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1148  _method_command("layer_lower", _("&Lower"), "LowerLayer",  _method_command("layer_lower", _("&Lower"), "LowerLayer",
1149                  helptext = _("Lower selected layer(s)"),                  helptext = _("Lower selected layer"),
1150                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1151  _method_command("layer_show", _("&Show"), "ShowLayer",  _method_command("layer_show", _("&Show"), "ShowLayer",
1152                  helptext = _("Make selected layer(s) visible"),                  helptext = _("Make selected layer visible"),
1153                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1154  _method_command("layer_hide", _("&Hide"), "HideLayer",  _method_command("layer_hide", _("&Hide"), "HideLayer",
1155                  helptext = _("Make selected layer(s) unvisible"),                  helptext = _("Make selected layer unvisible"),
1156                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1157  _method_command("layer_show_table", _("Show Ta&ble"), "LayerShowTable",  _method_command("layer_show_table", _("Show Ta&ble"), "LayerShowTable",
1158                  helptext = _("Show the selected layer's table"),                  helptext = _("Show the selected layer's table"),
1159                  sensitive = _has_selected_layer)                  sensitive = _has_selected_shape_layer)
1160  _method_command("layer_properties", _("&Properties..."), "LayerEditProperties",  _method_command("layer_properties", _("&Properties..."), "LayerEditProperties",
1161                    sensitive = _has_selected_layer,
1162                    helptext = _("Edit the properties of the selected layer"))
1163    _method_command("layer_jointable", _("&Join Table..."), "LayerJoinTable",
1164                    sensitive = _has_selected_shape_layer,
1165                    helptext = _("Join and attach a table to the selected layer"))
1166    
1167    # further layer methods:
1168    _method_command("layer_to_top", _("&Top"), "LayerToTop",
1169                    helptext = _("Put selected layer to the top"),
1170                    sensitive = _has_selected_layer)
1171    _method_command("layer_to_bottom", _("&Bottom"), "LayerToBottom",
1172                    helptext = _("Put selected layer to the bottom"),
1173                    sensitive = _has_selected_layer)
1174    _method_command("layer_visibility", _("&Visible"), "ToggleLayerVisibility",
1175                    checked = _has_selected_layer_visible,
1176                    helptext = _("Toggle visibility of selected layer"),
1177                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1178    
1179  # the menu structure  def _can_unjoin(context):
1180  main_menu = Menu("<main>", "<main>",      """Return whether the Layer/Unjoin command can be executed.
1181                   [Menu("file", _("&File"),  
1182                         ["new_session", "open_session", None,      This is the case if a layer is selected and that layer has a
1183                          "save_session", "save_session_as", None,      shapestore that has an original shapestore.
1184                          "toggle_session_tree", None,      """
1185                          "exit"]),      layer = context.mainwindow.SelectedLayer()
1186                    Menu("map", _("&Map"),      if layer is None:
1187                         ["layer_add", "layer_remove", "map_rename",          return 0
1188        getstore = getattr(layer, "ShapeStore", None)
1189        if getstore is not None:
1190            return getstore().OrigShapeStore() is not None
1191        else:
1192            return 0
1193    _method_command("layer_unjointable", _("&Unjoin Table..."), "LayerUnjoinTable",
1194                    sensitive = _can_unjoin,
1195                    helptext = _("Undo the last join operation"))
1196    
1197    
1198    def _has_tables(context):
1199        return bool(context.session.Tables())
1200    
1201    # Table menu
1202    _method_command("table_open", _("&Open..."), "TableOpen",
1203                    helptext = _("Open a DBF-table from a file"))
1204    _method_command("table_close", _("&Close..."), "TableClose",
1205           sensitive = lambda context: bool(context.session.UnreferencedTables()),
1206                    helptext = _("Close one or more tables from a list"))
1207    _method_command("table_rename", _("&Rename..."), "TableRename",
1208                    sensitive = _has_tables,
1209                    helptext = _("Rename one or more tables"))
1210    _method_command("table_show", _("&Show..."), "TableShow",
1211                    sensitive = _has_tables,
1212                    helptext = _("Show one or more tables in a dialog"))
1213    _method_command("table_join", _("&Join..."), "TableJoin",
1214                    sensitive = _has_tables,
1215                    helptext = _("Join two tables creating a new one"))
1216    
1217    #  Export only under Windows ...
1218    map_menu = ["layer_add", "layer_add_db", "rasterlayer_add", "layer_remove",
1219                          None,                          None,
1220                            "map_rename",
1221                          "map_projection",                          "map_projection",
1222                          None,                          None,
1223                          "map_zoom_in_tool", "map_zoom_out_tool",                          "map_zoom_in_tool", "map_zoom_out_tool",
1224                          "map_pan_tool", "map_full_extent", "layer_full_extent",                          "map_pan_tool",
1225                            "map_full_extent",
1226                            "layer_full_extent",
1227                            "selected_full_extent",
1228                          None,                          None,
1229                          "map_identify_tool", "map_label_tool",                          "map_identify_tool", "map_label_tool",
1230                          None,                          None,
1231                          "toggle_legend",                          "toggle_legend",
1232                          None,                          None]
1233                          "map_print"]),  if wxPlatform == '__WXMSW__':
1234        map_menu.append("map_export")
1235    map_menu.append("map_print")
1236    
1237    # the menu structure
1238    main_menu = Menu("<main>", "<main>",
1239                     [Menu("file", _("&File"),
1240                           ["new_session", "open_session", None,
1241                            "save_session", "save_session_as", None,
1242                            "database_management", None,
1243                            "toggle_session_tree", None,
1244                            "exit"]),
1245                      Menu("map", _("&Map"), map_menu),
1246                    Menu("layer", _("&Layer"),                    Menu("layer", _("&Layer"),
1247                          ["layer_raise", "layer_lower",                         ["layer_rename", "layer_duplicate",
1248                            None,
1249                            "layer_raise", "layer_lower",
1250                          None,                          None,
1251                          "layer_show", "layer_hide",                          "layer_show", "layer_hide",
1252                          None,                          None,
1253                            "layer_projection",
1254                            None,
1255                          "layer_show_table",                          "layer_show_table",
1256                            "layer_jointable",
1257                            "layer_unjointable",
1258                          None,                          None,
                         "layer_projection",  
1259                          "layer_properties"]),                          "layer_properties"]),
1260                      Menu("table", _("&Table"),
1261                           ["table_open", "table_close", "table_rename",
1262                           None,
1263                           "table_show",
1264                           None,
1265                           "table_join"]),
1266                    Menu("help", _("&Help"),                    Menu("help", _("&Help"),
1267                         ["help_about"])])                         ["help_about"])])
1268    
# Line 848  main_menu = Menu("<main>", "<main>", Line 1270  main_menu = Menu("<main>", "<main>",
1270    
1271  main_toolbar = Menu("<toolbar>", "<toolbar>",  main_toolbar = Menu("<toolbar>", "<toolbar>",
1272                      ["map_zoom_in_tool", "map_zoom_out_tool", "map_pan_tool",                      ["map_zoom_in_tool", "map_zoom_out_tool", "map_pan_tool",
1273                       "map_full_extent", None,                       "map_full_extent",
1274                         "layer_full_extent",
1275                         "selected_full_extent",
1276                         None,
1277                       "map_identify_tool", "map_label_tool"])                       "map_identify_tool", "map_label_tool"])
1278    
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