/[thuban]/branches/WIP-pyshapelib-bramz/Thuban/UI/mainwindow.py
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revision 704 by bh, Tue Apr 22 16:55:50 2003 UTC revision 1622 by jan, Thu Aug 21 11:56:06 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 12  The main window Line 13  The main window
13    
14  __version__ = "$Revision$"  __version__ = "$Revision$"
15    
16  __ThubanVersion__ = "0.2" #"$THUBAN_0_2$"  __ThubanVersion__ = "0.8" #"$THUBAN_0_2$"
17  #__BuildDate__ = "$Date$"  #__BuildDate__ = "$Date$"
18    
19  import os  import os
20    import copy
21    
22  from wxPython.wx import *  from wxPython.wx import *
23    from wxPython.wx import __version__ as wxPython_version
24    
25  import Thuban  import Thuban
26    import Thuban.version
27    
28  from Thuban import _  from Thuban import _
29  from Thuban.Model.session import create_empty_session  from Thuban.Model.session import create_empty_session
30  from Thuban.Model.layer import Layer  from Thuban.Model.layer import Layer, RasterLayer
31  from Thuban.Model.color import Color  from Thuban.Model.postgisdb import PostGISShapeStore
32  from Thuban.Model.proj import Projection  # XXX: replace this by
33    # from wxPython.lib.dialogs import wxMultipleChoiceDialog
34    # when Thuban does not support wxPython 2.4.0 any more.
35    from Thuban.UI.multiplechoicedialog import wxMultipleChoiceDialog
36    
37  import view  import view
38  import tree  import tree
 import proj4dialog  
39  import tableview, identifyview  import tableview, identifyview
40  from Thuban.UI.classifier import Classifier  from Thuban.UI.classifier import Classifier
41  import legend  import legend
# Line 36  from menu import Menu Line 43  from menu import Menu
43    
44  from context import Context  from context import Context
45  from command import registry, Command, ToolCommand  from command import registry, Command, ToolCommand
46  from messages import LAYER_SELECTED, SHAPES_SELECTED, VIEW_POSITION  from messages import LAYER_SELECTED, SHAPES_SELECTED, VIEW_POSITION, \
47         MAP_REPLACED
48    from about import About
49    
50  from Thuban.UI.dock import DockFrame  from Thuban.UI.dock import DockFrame
51    from Thuban.UI.join import JoinDialog
52    from Thuban.UI.dbdialog import DBFrame, ChooseDBTableDialog
53  import resource  import resource
54    import Thuban.Model.resource
55    
56    import projdialog
57    
58    
59  class MainWindow(DockFrame):  class MainWindow(DockFrame):
# Line 52  class MainWindow(DockFrame): Line 64  class MainWindow(DockFrame):
64      # actually come from. This delegation is implemented in the      # actually come from. This delegation is implemented in the
65      # Subscribe and unsubscribed methods      # Subscribe and unsubscribed methods
66      delegated_messages = {LAYER_SELECTED: "canvas",      delegated_messages = {LAYER_SELECTED: "canvas",
67                            SHAPES_SELECTED: "canvas"}                            SHAPES_SELECTED: "canvas",
68                              MAP_REPLACED: "canvas"}
69    
70      # Methods delegated to some instance variables. The delegation is      # Methods delegated to some instance variables. The delegation is
71      # implemented in the __getattr__ method.      # implemented in the __getattr__ method.
72      delegated_methods = {"SelectLayer": "canvas",      delegated_methods = {"SelectLayer": "canvas",
73                           "SelectShapes": "canvas",                           "SelectShapes": "canvas",
74                             "SelectedLayer": "canvas",
75                             "SelectedShapes": "canvas",
76                           }                           }
77    
78      def __init__(self, parent, ID, title, application, interactor,      def __init__(self, parent, ID, title, application, interactor,
# Line 96  class MainWindow(DockFrame): Line 111  class MainWindow(DockFrame):
111    
112          self.init_dialogs()          self.init_dialogs()
113    
114          EVT_CLOSE(self, self._OnClose)          self.ShowLegend()
115    
116            EVT_CLOSE(self, self.OnClose)
117    
118      def Subscribe(self, channel, *args):      def Subscribe(self, channel, *args):
119          """Subscribe a function to a message channel.          """Subscribe a function to a message channel.
# Line 349  class MainWindow(DockFrame): Line 366  class MainWindow(DockFrame):
366              result = wxID_NO              result = wxID_NO
367          return result          return result
368    
     def prepare_new_session(self):  
         for d in self.dialogs.values():  
             if not isinstance(d, tree.SessionTreeView):  
                 d.Close()  
   
369      def NewSession(self):      def NewSession(self):
370          self.save_modified_session()          if self.save_modified_session() != wxID_CANCEL:
371          self.prepare_new_session()              self.application.SetSession(create_empty_session())
         self.application.SetSession(create_empty_session())  
372    
373      def OpenSession(self):      def OpenSession(self):
374          self.save_modified_session()          if self.save_modified_session() != wxID_CANCEL:
375          dlg = wxFileDialog(self, _("Open Session"), ".", "", "*.thuban", wxOPEN)              dlg = wxFileDialog(self, _("Open Session"), ".", "",
376          if dlg.ShowModal() == wxID_OK:                                 "Thuban Session File (*.thuban)|*.thuban",
377              self.prepare_new_session()                                 wxOPEN)
378              self.application.OpenSession(dlg.GetPath())              if dlg.ShowModal() == wxID_OK:
379          dlg.Destroy()                  self.application.OpenSession(dlg.GetPath())
380                dlg.Destroy()
381    
382      def SaveSession(self):      def SaveSession(self):
383          if self.application.session.filename == None:          if self.application.session.filename == None:
# Line 375  class MainWindow(DockFrame): Line 387  class MainWindow(DockFrame):
387    
388      def SaveSessionAs(self):      def SaveSessionAs(self):
389          dlg = wxFileDialog(self, _("Save Session As"), ".", "",          dlg = wxFileDialog(self, _("Save Session As"), ".", "",
390                             "*.thuban", wxOPEN)                             "Thuban Session File (*.thuban)|*.thuban",
391                               wxSAVE|wxOVERWRITE_PROMPT)
392          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wxID_OK:
393              self.application.session.SetFilename(dlg.GetPath())              self.application.session.SetFilename(dlg.GetPath())
394              self.application.SaveSession()              self.application.SaveSession()
# Line 384  class MainWindow(DockFrame): Line 397  class MainWindow(DockFrame):
397      def Exit(self):      def Exit(self):
398          self.Close(False)          self.Close(False)
399    
400      def _OnClose(self, event):      def OnClose(self, event):
401          result = self.save_modified_session(can_veto = event.CanVeto())          result = self.save_modified_session(can_veto = event.CanVeto())
402          if result == wxID_CANCEL:          if result == wxID_CANCEL:
403              event.Veto()              event.Veto()
# Line 393  class MainWindow(DockFrame): Line 406  class MainWindow(DockFrame):
406              # wx's destroy event, but that isn't implemented for wxGTK              # wx's destroy event, but that isn't implemented for wxGTK
407              # yet.              # yet.
408              self.canvas.Unsubscribe(VIEW_POSITION, self.view_position_changed)              self.canvas.Unsubscribe(VIEW_POSITION, self.view_position_changed)
409              DockFrame._OnClose(self, event)              DockFrame.OnClose(self, event)
410                for dlg in self.dialogs.values():
411                    dlg.Destroy()
412                self.canvas.Destroy()
413              self.Destroy()              self.Destroy()
414    
415      def SetMap(self, map):      def SetMap(self, map):
416          self.canvas.SetMap(map)          self.canvas.SetMap(map)
417          self.__SetTitle(map.Title())          self.__SetTitle(map.Title())
418          #self.legendPanel.SetMap(map)  
419            dialog = self.FindRegisteredDock("legend")
420            if dialog is not None:
421                dialog.GetPanel().SetMap(self.Map())
422    
423      def Map(self):      def Map(self):
424          """Return the map displayed by this mainwindow"""          """Return the map displayed by this mainwindow"""
425    
         # sanity check  
         #assert(self.canvas.Map() is self.legendPanel.GetMap())  
   
426          return self.canvas.Map()          return self.canvas.Map()
427    
428      def ToggleSessionTree(self):      def ToggleSessionTree(self):
# Line 425  class MainWindow(DockFrame): Line 441  class MainWindow(DockFrame):
441          return self.get_open_dialog("session_tree") is not None          return self.get_open_dialog("session_tree") is not None
442    
443      def About(self):      def About(self):
444          self.RunMessageBox(_("About"),          dlg = About(self)
445                             _("Thuban v%s\n"          dlg.ShowModal()
446                              #"Build Date: %s\n"          dlg.Destroy()
447                              "\n"  
448                              "Thuban is a program for\n"      def DatabaseManagement(self):
449                              "exploring geographic data.\n"          name = "dbmanagement"
450                              "Copyright (C) 2001-2003 Intevation GmbH.\n"          dialog = self.get_open_dialog(name)
451                              "Thuban is licensed under the GNU GPL"          if dialog is None:
452                             % __ThubanVersion__), #__BuildDate__)),              map = self.canvas.Map()
453                             wxOK | wxICON_INFORMATION)              dialog = DBFrame(self, name, self.application.Session())
454                self.add_dialog(name, dialog)
455                dialog.Show()
456            dialog.Raise()
457    
458      def AddLayer(self):      def AddLayer(self):
459          dlg = wxFileDialog(self, _("Select a data file"), ".", "", "*.*",          dlg = wxFileDialog(self, _("Select one or more data files"), ".", "",
460                               _("Shapefiles (*.shp)") + "|*.shp|" +
461                               _("All Files (*.*)") + "|*.*",
462                               wxOPEN | wxMULTIPLE)
463            if dlg.ShowModal() == wxID_OK:
464                filenames = dlg.GetPaths()
465                for filename in filenames:
466                    title = os.path.splitext(os.path.basename(filename))[0]
467                    map = self.canvas.Map()
468                    has_layers = map.HasLayers()
469                    try:
470                        store = self.application.Session().OpenShapefile(filename)
471                    except IOError:
472                        # the layer couldn't be opened
473                        self.RunMessageBox(_("Add Layer"),
474                                           _("Can't open the file '%s'.")%filename)
475                    else:
476                        layer = Layer(title, store)
477                        map.AddLayer(layer)
478                        if not has_layers:
479                            # if we're adding a layer to an empty map, fit the
480                            # new map to the window
481                            self.canvas.FitMapToWindow()
482            dlg.Destroy()
483    
484        def AddRasterLayer(self):
485            dlg = wxFileDialog(self, _("Select an image file"), ".", "", "*.*",
486                             wxOPEN)                             wxOPEN)
487          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wxID_OK:
488              filename = dlg.GetPath()              filename = dlg.GetPath()
489              title = os.path.splitext(os.path.basename(filename))[0]              title = os.path.splitext(os.path.basename(filename))[0]
             layer = Layer(title, filename)  
490              map = self.canvas.Map()              map = self.canvas.Map()
491              has_layers = map.HasLayers()              has_layers = map.HasLayers()
492              try:              try:
493                  map.AddLayer(layer)                  layer = RasterLayer(title, filename)
494              except IOError:              except IOError:
495                  # the layer couldn't be opened                  # the layer couldn't be opened
496                  self.RunMessageBox(_("Add Layer"),                  self.RunMessageBox(_("Add Image Layer"),
497                                     _("Can't open the file '%s'.") % filename)                                     _("Can't open the file '%s'.") % filename)
498              else:              else:
499                    map.AddLayer(layer)
500                  if not has_layers:                  if not has_layers:
501                      # if we're adding a layer to an empty map, fit the                      # if we're adding a layer to an empty map, fit the
502                      # new map to the window                      # new map to the window
503                      self.canvas.FitMapToWindow()                      self.canvas.FitMapToWindow()
504          dlg.Destroy()          dlg.Destroy()
505    
506        def AddDBLayer(self):
507            """Add a layer read from a database"""
508            session = self.application.Session()
509            dlg = ChooseDBTableDialog(self.application.Session(), self,-1, "")
510    
511            if dlg.ShowModal() == wxID_OK:
512                dbconn, dbtable = dlg.GetTable()
513                try:
514                    title = str(dbtable)
515    
516                    # Chose the correct Interface for the database type
517                    store = PostGISShapeStore(dbconn, dbtable)
518                    session.AddShapeStore(store)
519                    layer = Layer(title, store)
520                except:
521                    # Some error occured while initializing the layer
522                    self.RunMessageBox(_("Add Layer from database"),
523                                       _("Can't open the database table '%s'")
524                                       % dbtable)
525    
526                map = self.canvas.Map()
527    
528                has_layers = map.HasLayers()
529                map.AddLayer(layer)
530                if not has_layers:
531                    self.canvas.FitMapToWindow()
532    
533            dlg.Destroy()
534    
535      def RemoveLayer(self):      def RemoveLayer(self):
536          layer = self.current_layer()          layer = self.current_layer()
537          if layer is not None:          if layer is not None:
# Line 497  class MainWindow(DockFrame): Line 571  class MainWindow(DockFrame):
571          """Return true if a layer is currently selected"""          """Return true if a layer is currently selected"""
572          return self.canvas.HasSelectedLayer()          return self.canvas.HasSelectedLayer()
573    
574      def choose_color(self):      def has_selected_shapes(self):
575          """Run the color selection dialog and return the selected color.          """Return true if a shape is currently selected"""
576            return self.canvas.HasSelectedShapes()
         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  
577    
578      def HideLayer(self):      def HideLayer(self):
579          layer = self.current_layer()          layer = self.current_layer()
580          if layer is not None:          if layer is not None:
581              layer.SetVisible(0)              layer.SetVisible(0)
582            
583      def ShowLayer(self):      def ShowLayer(self):
584          layer = self.current_layer()          layer = self.current_layer()
585          if layer is not None:          if layer is not None:
586              layer.SetVisible(1)              layer.SetVisible(1)
587    
588        def DuplicateLayer(self):
589            """Ceate a new layer above the selected layer with the same shapestore
590            """
591            layer = self.current_layer()
592            if layer is not None and hasattr(layer, "ShapeStore"):
593                new_layer = Layer(_("Copy of `%s'") % layer.Title(),
594                                  layer.ShapeStore(),
595                                  projection = layer.GetProjection())
596                new_classification = copy.deepcopy(layer.GetClassification())
597                new_layer.SetClassification(new_classification)
598                self.Map().AddLayer(new_layer)
599    
600        def CanDuplicateLayer(self):
601            """Return whether the DuplicateLayer method can create a duplicate"""
602            layer = self.current_layer()
603            return layer is not None and hasattr(layer, "ShapeStore")
604    
605      def LayerShowTable(self):      def LayerShowTable(self):
606          layer = self.current_layer()          layer = self.current_layer()
607          if layer is not None:          if layer is not None:
608              table = layer.table              table = layer.ShapeStore().Table()
609              name = "table_view" + str(id(table))              name = "table_view" + str(id(table))
610              dialog = self.get_open_dialog(name)              dialog = self.get_open_dialog(name)
611              if dialog is None:              if dialog is None:
612                  dialog = tableview.LayerTableFrame(self, name,                  dialog = tableview.LayerTableFrame(self, name,
613                                                 _("Table: %s") % layer.Title(),                                           _("Layer Table: %s") % layer.Title(),
614                                                     layer, table)                                           layer, table)
615                  self.add_dialog(name, dialog)                  self.add_dialog(name, dialog)
616                  dialog.Show(true)                  dialog.Show(True)
617              else:              else:
618                  # FIXME: bring dialog to front here                  # FIXME: bring dialog to front here
619                  pass                  pass
620    
621      def Projection(self):      def MapProjection(self):
622          map = self.canvas.Map()  
623          proj = map.projection          name = "map_projection"
624          if proj is None:          dialog = self.get_open_dialog(name)
625              proj4Dlg = proj4dialog.Proj4Dialog(NULL, None, map.BoundingBox())  
626          else:          if dialog is None:
627              proj4Dlg = proj4dialog.Proj4Dialog(NULL, map.projection.params,              map = self.canvas.Map()
628                                                 map.BoundingBox())              dialog = projdialog.ProjFrame(self, name,
629          if proj4Dlg.ShowModal() == wxID_OK:                       _("Map Projection: %s") % map.Title(), map)
630              params = proj4Dlg.GetParams()              self.add_dialog(name, dialog)
631              if params is not None:              dialog.Show()
632                  proj = Projection(params)          dialog.Raise()
633              else:  
634                  proj = None      def LayerProjection(self):
635              map.SetProjection(proj)  
636          proj4Dlg.Destroy()          layer = self.current_layer()
637    
638            name = "layer_projection" + str(id(layer))
639            dialog = self.get_open_dialog(name)
640    
641            if dialog is None:
642                map = self.canvas.Map()
643                dialog = projdialog.ProjFrame(self, name,
644                         _("Layer Projection: %s") % layer.Title(), layer)
645                self.add_dialog(name, dialog)
646                dialog.Show()
647            dialog.Raise()
648    
649      def LayerEditProperties(self):      def LayerEditProperties(self):
650    
# Line 572  class MainWindow(DockFrame): Line 662  class MainWindow(DockFrame):
662          dialog = self.get_open_dialog(name)          dialog = self.get_open_dialog(name)
663    
664          if dialog is None:          if dialog is None:
665              dialog = Classifier(self, name, layer, group)              dialog = Classifier(self, name, self.Map(), layer, group)
666              self.add_dialog(name, dialog)              self.add_dialog(name, dialog)
667              dialog.Show()              dialog.Show()
668          dialog.Raise()          dialog.Raise()
669    
670        def LayerJoinTable(self):
671            layer = self.canvas.SelectedLayer()
672            if layer is not None:
673                dlg = JoinDialog(self, _("Join Layer with Table"),
674                                 self.application.session,
675                                 layer = layer)
676                dlg.ShowModal()
677    
678        def LayerUnjoinTable(self):
679            layer = self.canvas.SelectedLayer()
680            if layer is not None:
681                orig_store = layer.ShapeStore().OrigShapeStore()
682                if orig_store:
683                    layer.SetShapeStore(orig_store)
684    
685      def ShowLegend(self):      def ShowLegend(self):
686          if not self.LegendShown():          if not self.LegendShown():
# Line 601  class MainWindow(DockFrame): Line 705  class MainWindow(DockFrame):
705          dialog = self.FindRegisteredDock("legend")          dialog = self.FindRegisteredDock("legend")
706          return dialog is not None and dialog.IsShown()          return dialog is not None and dialog.IsShown()
707    
708        def TableOpen(self):
709            dlg = wxFileDialog(self, _("Open Table"), ".", "",
710                               _("DBF Files (*.dbf)") + "|*.dbf|" +
711                               #_("CSV Files (*.csv)") + "|*.csv|" +
712                               _("All Files (*.*)") + "|*.*",
713                               wxOPEN)
714            if dlg.ShowModal() == wxID_OK:
715                filename = dlg.GetPath()
716                dlg.Destroy()
717                try:
718                    table = self.application.session.OpenTableFile(filename)
719                except IOError:
720                    # the layer couldn't be opened
721                    self.RunMessageBox(_("Open Table"),
722                                       _("Can't open the file '%s'.") % filename)
723                else:
724                    self.ShowTableView(table)
725    
726        def TableClose(self):
727            tables = self.application.session.UnreferencedTables()
728    
729            lst = [(t.Title(), t) for t in tables]
730            lst.sort()
731            titles = [i[0] for i in lst]
732            dlg = wxMultipleChoiceDialog(self, _("Pick the tables to close:"),
733                                         _("Close Table"), titles,
734                                         size = (400, 300),
735                                         style = wxDEFAULT_DIALOG_STYLE |
736                                                 wxRESIZE_BORDER)
737            if dlg.ShowModal() == wxID_OK:
738                for i in dlg.GetValue():
739                    self.application.session.RemoveTable(lst[i][1])
740    
741    
742        def TableShow(self):
743            """Offer a multi-selection dialog for tables to be displayed
744    
745            The windows for the selected tables are opened or brought to
746            the front.
747            """
748            tables = self.application.session.Tables()
749    
750            lst = [(t.Title(), t) for t in tables]
751            lst.sort()
752            titles = [i[0] for i in lst]
753            dlg = wxMultipleChoiceDialog(self, _("Pick the table to show:"),
754                                         _("Show Table"), titles,
755                                         size = (400,300),
756                                         style = wxDEFAULT_DIALOG_STYLE |
757                                                 wxRESIZE_BORDER)
758            if (dlg.ShowModal() == wxID_OK):
759                for i in dlg.GetValue():
760                    # XXX: if the table belongs to a layer, open a
761                    # LayerTableFrame instead of QueryTableFrame
762                    self.ShowTableView(lst[i][1])
763    
764        def TableJoin(self):
765            dlg = JoinDialog(self, _("Join Tables"), self.application.session)
766            dlg.ShowModal()
767    
768        def ShowTableView(self, table):
769            """Open a table view for the table and optionally"""
770            name = "table_view%d" % id(table)
771            dialog = self.get_open_dialog(name)
772            if dialog is None:
773                dialog = tableview.QueryTableFrame(self, name,
774                                                   _("Table: %s") % table.Title(),
775                                                   table)
776                self.add_dialog(name, dialog)
777                dialog.Show(True)
778            dialog.Raise()
779    
780        def TableRename(self):
781            """Let the user rename a table"""
782    
783            # First, let the user select a table
784            tables = self.application.session.Tables()
785            lst = [(t.Title(), t) for t in tables]
786            lst.sort()
787            titles = [i[0] for i in lst]
788            dlg = wxMultipleChoiceDialog(self, _("Pick the table to rename:"),
789                                         _("Rename Table"), titles,
790                                         size = (400,300),
791                                         style = wxDEFAULT_DIALOG_STYLE |
792                                                 wxRESIZE_BORDER)
793            if (dlg.ShowModal() == wxID_OK):
794                to_rename = [lst[i][1] for i in dlg.GetValue()]
795                dlg.Destroy()
796            else:
797                to_rename = []
798    
799            # Second, let the user rename the layers
800            for table in to_rename:
801                dlg = wxTextEntryDialog(self, "Table Title: ", "Rename Table",
802                                        table.Title())
803                try:
804                    if dlg.ShowModal() == wxID_OK:
805                        title = dlg.GetValue()
806                        if title != "":
807                            table.SetTitle(title)
808    
809                            # Make sure the session is marked as modified.
810                            # FIXME: This should be handled automatically,
811                            # but that requires more changes to the tables
812                            # than I have time for currently.
813                            self.application.session.changed()
814                finally:
815                    dlg.Destroy()
816    
817    
818      def ZoomInTool(self):      def ZoomInTool(self):
819          self.canvas.ZoomInTool()          self.canvas.ZoomInTool()
820    
# Line 620  class MainWindow(DockFrame): Line 834  class MainWindow(DockFrame):
834      def FullExtent(self):      def FullExtent(self):
835          self.canvas.FitMapToWindow()          self.canvas.FitMapToWindow()
836    
837        def FullLayerExtent(self):
838            self.canvas.FitLayerToWindow(self.current_layer())
839    
840        def FullSelectionExtent(self):
841            self.canvas.FitSelectedToWindow()
842    
843        def ExportMap(self):
844            self.canvas.Export()
845    
846      def PrintMap(self):      def PrintMap(self):
847          self.canvas.Print()          self.canvas.Print()
848    
# Line 634  class MainWindow(DockFrame): Line 857  class MainWindow(DockFrame):
857    
858          dlg.Destroy()          dlg.Destroy()
859    
860        def RenameLayer(self):
861            """Let the user rename the currently selected layer"""
862            layer = self.current_layer()
863            if layer is not None:
864                dlg = wxTextEntryDialog(self, "Layer Title: ", "Rename Layer",
865                                        layer.Title())
866                try:
867                    if dlg.ShowModal() == wxID_OK:
868                        title = dlg.GetValue()
869                        if title != "":
870                            layer.SetTitle(title)
871                finally:
872                    dlg.Destroy()
873    
874      def identify_view_on_demand(self, layer, shapes):      def identify_view_on_demand(self, layer, shapes):
875            """Subscribed to the canvas' SHAPES_SELECTED message
876    
877            If the current tool is the identify tool, at least one shape is
878            selected and the identify dialog is not shown, show the dialog.
879            """
880            # If the selection has become empty we don't need to do
881            # anything. Otherwise it could happen that the dialog was popped
882            # up when the selection became empty, e.g. when a new selection
883            # is opened while the identify tool is active and dialog had
884            # been closed
885            if not shapes:
886                return
887    
888          name = "identify_view"          name = "identify_view"
889          if self.canvas.CurrentTool() == "IdentifyTool":          if self.canvas.CurrentTool() == "IdentifyTool":
890              if not self.dialog_open(name):              if not self.dialog_open(name):
# Line 688  def _has_selected_layer(context): Line 938  def _has_selected_layer(context):
938      """Return true if a layer is selected in the context"""      """Return true if a layer is selected in the context"""
939      return context.mainwindow.has_selected_layer()      return context.mainwindow.has_selected_layer()
940    
941    def _has_selected_shapes(context):
942        """Return true if a layer is selected in the context"""
943        return context.mainwindow.has_selected_shapes()
944    
945  def _can_remove_layer(context):  def _can_remove_layer(context):
946      return context.mainwindow.CanRemoveLayer()      return context.mainwindow.CanRemoveLayer()
947    
# Line 710  def _has_legend_shown(context): Line 964  def _has_legend_shown(context):
964      """Return true if the legend window is shown"""      """Return true if the legend window is shown"""
965      return context.mainwindow.LegendShown()      return context.mainwindow.LegendShown()
966    
967    def _has_gdal_support(context):
968        """Return True if the GDAL is available"""
969        return Thuban.Model.resource.has_gdal_support()
970    
971    def _has_dbconnections(context):
972        """Return whether the the session has database connections"""
973        return context.session.HasDBConnections()
974    
975  # File menu  # File menu
976  _method_command("new_session", _("&New Session"), "NewSession")  _method_command("new_session", _("&New Session"), "NewSession",
977  _method_command("open_session", _("&Open Session"), "OpenSession")                  helptext = _("Start a new session"))
978  _method_command("save_session", _("&Save Session"), "SaveSession")  _method_command("open_session", _("&Open Session..."), "OpenSession",
979  _method_command("save_session_as", _("Save Session &As"), "SaveSessionAs")                  helptext = _("Open a session file"))
980    _method_command("save_session", _("&Save Session"), "SaveSession",
981                    helptext =_("Save this session to the file it was opened from"))
982    _method_command("save_session_as", _("Save Session &As..."), "SaveSessionAs",
983                    helptext = _("Save this session to a new file"))
984  _method_command("toggle_session_tree", _("Session &Tree"), "ToggleSessionTree",  _method_command("toggle_session_tree", _("Session &Tree"), "ToggleSessionTree",
985                  checked = _has_tree_window_shown)                  checked = _has_tree_window_shown,
986                    helptext = _("Toggle on/off the session tree analysis window"))
987  _method_command("toggle_legend", _("Legend"), "ToggleLegend",  _method_command("toggle_legend", _("Legend"), "ToggleLegend",
988                  checked = _has_legend_shown)                  checked = _has_legend_shown,
989  _method_command("exit", _("E&xit"), "Exit")                  helptext = _("Toggle Legend on/off"))
990    _method_command("database_management", _("&Database Connections..."),
991                    "DatabaseManagement")
992    _method_command("exit", _("E&xit"), "Exit",
993                    helptext = _("Finish working with Thuban"))
994    
995  # Help menu  # Help menu
996  _method_command("help_about", _("&About"), "About")  _method_command("help_about", _("&About..."), "About",
997                    helptext = _("Info about Thuban authors, version and modules"))
998    
999    
1000  # Map menu  # Map menu
1001  _method_command("map_projection", _("Pro&jection"), "Projection")  _method_command("map_projection", _("Pro&jection..."), "MapProjection",
1002                    helptext = _("Set or change the map projection"))
1003    
1004  _tool_command("map_zoom_in_tool", _("&Zoom in"), "ZoomInTool", "ZoomInTool",  _tool_command("map_zoom_in_tool", _("&Zoom in"), "ZoomInTool", "ZoomInTool",
1005                helptext = _("Switch to map-mode 'zoom-in'"), icon = "zoom_in",                helptext = _("Switch to map-mode 'zoom-in'"), icon = "zoom_in",
# Line 746  _tool_command("map_label_tool", _("&Labe Line 1018  _tool_command("map_label_tool", _("&Labe
1018                helptext = _("Add/Remove labels"), icon = "label",                helptext = _("Add/Remove labels"), icon = "label",
1019                sensitive = _has_visible_map)                sensitive = _has_visible_map)
1020  _method_command("map_full_extent", _("&Full extent"), "FullExtent",  _method_command("map_full_extent", _("&Full extent"), "FullExtent",
1021                 helptext = _("Full Extent"), icon = "fullextent",                 helptext = _("Zoom to the full map extent"), icon = "fullextent",
1022                sensitive = _has_visible_map)                sensitive = _has_visible_map)
1023    _method_command("layer_full_extent", _("&Full layer extent"), "FullLayerExtent",
1024                    helptext = _("Zoom to the full layer extent"),
1025                    icon = "fulllayerextent", sensitive = _has_selected_layer)
1026    _method_command("selected_full_extent", _("&Full selection extent"),
1027                    "FullSelectionExtent",
1028                    helptext = _("Zoom to the full selection extent"),
1029                    icon = "fullselextent", sensitive = _has_selected_shapes)
1030    _method_command("map_export", _("E&xport"), "ExportMap",
1031                    helptext = _("Export the map to file"))
1032  _method_command("map_print", _("Prin&t"), "PrintMap",  _method_command("map_print", _("Prin&t"), "PrintMap",
1033                  helptext = _("Print the map"))                  helptext = _("Print the map"))
1034  _method_command("map_rename", _("&Rename"), "RenameMap",  _method_command("map_rename", _("&Rename..."), "RenameMap",
1035                  helptext = _("Rename the map"))                  helptext = _("Rename the map"))
1036    _method_command("layer_add", _("&Add Layer..."), "AddLayer",
1037  # Layer menu                  helptext = _("Add a new layer to the map"))
1038  _method_command("layer_add", _("&Add Layer"), "AddLayer",  _method_command("rasterlayer_add", _("&Add Image Layer..."), "AddRasterLayer",
1039                  helptext = _("Add a new layer to active map"))                  helptext = _("Add a new image layer to the map"),
1040                    sensitive = _has_gdal_support)
1041    _method_command("layer_add_db", _("Add &Database Layer..."), "AddDBLayer",
1042                    helptext = _("Add a new database layer to active map"),
1043                    sensitive = _has_dbconnections)
1044  _method_command("layer_remove", _("&Remove Layer"), "RemoveLayer",  _method_command("layer_remove", _("&Remove Layer"), "RemoveLayer",
1045                  helptext = _("Remove selected layer(s)"),                  helptext = _("Remove selected layer"),
1046                  sensitive = _can_remove_layer)                  sensitive = _can_remove_layer)
1047    
1048    # Layer menu
1049    _method_command("layer_projection", _("Pro&jection..."), "LayerProjection",
1050                    sensitive = _has_selected_layer,
1051                    helptext = _("Specify projection for selected layer"))
1052    _method_command("layer_duplicate", _("&Duplicate"), "DuplicateLayer",
1053                    helptext = _("Duplicate selected layer"),
1054              sensitive = lambda context: context.mainwindow.CanDuplicateLayer())
1055    _method_command("layer_rename", _("Re&name ..."), "RenameLayer",
1056                    helptext = _("Rename selected layer"),
1057                    sensitive = _has_selected_layer)
1058  _method_command("layer_raise", _("&Raise"), "RaiseLayer",  _method_command("layer_raise", _("&Raise"), "RaiseLayer",
1059                  helptext = _("Raise selected layer(s)"),                  helptext = _("Raise selected layer"),
1060                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1061  _method_command("layer_lower", _("&Lower"), "LowerLayer",  _method_command("layer_lower", _("&Lower"), "LowerLayer",
1062                  helptext = _("Lower selected layer(s)"),                  helptext = _("Lower selected layer"),
1063                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1064  _method_command("layer_show", _("&Show"), "ShowLayer",  _method_command("layer_show", _("&Show"), "ShowLayer",
1065                  helptext = _("Make selected layer(s) visible"),                  helptext = _("Make selected layer visible"),
1066                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1067  _method_command("layer_hide", _("&Hide"), "HideLayer",  _method_command("layer_hide", _("&Hide"), "HideLayer",
1068                  helptext = _("Make selected layer(s) unvisible"),                  helptext = _("Make selected layer unvisible"),
1069                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1070  _method_command("layer_show_table", _("Show Ta&ble"), "LayerShowTable",  _method_command("layer_show_table", _("Show Ta&ble"), "LayerShowTable",
1071                  helptext = _("Show the selected layer's table"),                  helptext = _("Show the selected layer's table"),
1072                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1073  _method_command("layer_properties", _("Properties"), "LayerEditProperties",  _method_command("layer_properties", _("&Properties..."), "LayerEditProperties",
1074                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer,
1075                    helptext = _("Edit the properties of the selected layer"))
1076    _method_command("layer_jointable", _("&Join Table..."), "LayerJoinTable",
1077                    sensitive = _has_selected_layer,
1078                    helptext = _("Join and attach a table to the selected layer"))
1079    
1080  # the menu structure  def _can_unjoin(context):
1081  main_menu = Menu("<main>", "<main>",      """Return whether the Layer/Unjoin command can be executed.
1082                   [Menu("file", _("&File"),  
1083                         ["new_session", "open_session", None,      This is the case if a layer is selected and that layer has a
1084                          "save_session", "save_session_as", None,      shapestore that has an original shapestore.
1085                          "toggle_session_tree", None,      """
1086                          "exit"]),      layer = context.mainwindow.SelectedLayer()
1087                    Menu("map", _("&Map"),      if layer is None:
1088                         ["layer_add", "layer_remove",          return 0
1089        getstore = getattr(layer, "ShapeStore", None)
1090        if getstore is not None:
1091            return getstore().OrigShapeStore() is not None
1092        else:
1093            return 0
1094    _method_command("layer_unjointable", _("&Unjoin Table..."), "LayerUnjoinTable",
1095                    sensitive = _can_unjoin,
1096                    helptext = _("Undo the last join operation"))
1097    
1098    
1099    def _has_tables(context):
1100        return bool(context.session.Tables())
1101    
1102    # Table menu
1103    _method_command("table_open", _("&Open..."), "TableOpen",
1104                    helptext = _("Open a DBF-table from a file"))
1105    _method_command("table_close", _("&Close..."), "TableClose",
1106           sensitive = lambda context: bool(context.session.UnreferencedTables()),
1107                    helptext = _("Close one or more tables from a list"))
1108    _method_command("table_rename", _("&Rename..."), "TableRename",
1109                    sensitive = _has_tables,
1110                    helptext = _("Rename one or more tables"))
1111    _method_command("table_show", _("&Show..."), "TableShow",
1112                    sensitive = _has_tables,
1113                    helptext = _("Show one or more tables in a dialog"))
1114    _method_command("table_join", _("&Join..."), "TableJoin",
1115                    sensitive = _has_tables,
1116                    helptext = _("Join two tables creating a new one"))
1117    
1118    #  Export only under Windows ...
1119    map_menu = ["layer_add", "layer_add_db", "rasterlayer_add", "layer_remove",
1120                          None,                          None,
1121                            "map_rename",
1122                          "map_projection",                          "map_projection",
1123                          None,                          None,
1124                          "map_zoom_in_tool", "map_zoom_out_tool",                          "map_zoom_in_tool", "map_zoom_out_tool",
1125                          "map_pan_tool", "map_identify_tool", "map_label_tool",                          "map_pan_tool",
                         None,  
1126                          "map_full_extent",                          "map_full_extent",
1127                            "layer_full_extent",
1128                            "selected_full_extent",
1129                          None,                          None,
1130                          "toggle_legend",                          "map_identify_tool", "map_label_tool",
                         None,  
                         "map_print",  
1131                          None,                          None,
1132                          "map_rename"]),                          "toggle_legend",
1133                            None]
1134    if wxPlatform == '__WXMSW__':
1135        map_menu.append("map_export")
1136    map_menu.append("map_print")
1137    
1138    # the menu structure
1139    main_menu = Menu("<main>", "<main>",
1140                     [Menu("file", _("&File"),
1141                           ["new_session", "open_session", None,
1142                            "save_session", "save_session_as", None,
1143                            "database_management", None,
1144                            "toggle_session_tree", None,
1145                            "exit"]),
1146                      Menu("map", _("&Map"), map_menu),
1147                    Menu("layer", _("&Layer"),                    Menu("layer", _("&Layer"),
1148                          ["layer_raise", "layer_lower",                         ["layer_rename", "layer_duplicate",
1149                            None,
1150                            "layer_raise", "layer_lower",
1151                          None,                          None,
1152                          "layer_show", "layer_hide",                          "layer_show", "layer_hide",
1153                          None,                          None,
1154                            "layer_projection",
1155                            None,
1156                          "layer_show_table",                          "layer_show_table",
1157                            "layer_jointable",
1158                            "layer_unjointable",
1159                          None,                          None,
1160                          "layer_properties"]),                          "layer_properties"]),
1161                      Menu("table", _("&Table"),
1162                           ["table_open", "table_close", "table_rename",
1163                           None,
1164                           "table_show",
1165                           None,
1166                           "table_join"]),
1167                    Menu("help", _("&Help"),                    Menu("help", _("&Help"),
1168                         ["help_about"])])                         ["help_about"])])
1169    
# Line 814  main_menu = Menu("<main>", "<main>", Line 1171  main_menu = Menu("<main>", "<main>",
1171    
1172  main_toolbar = Menu("<toolbar>", "<toolbar>",  main_toolbar = Menu("<toolbar>", "<toolbar>",
1173                      ["map_zoom_in_tool", "map_zoom_out_tool", "map_pan_tool",                      ["map_zoom_in_tool", "map_zoom_out_tool", "map_pan_tool",
1174                       "map_full_extent", None,                       "map_full_extent",
1175                         "layer_full_extent",
1176                         "selected_full_extent",
1177                         None,
1178                       "map_identify_tool", "map_label_tool"])                       "map_identify_tool", "map_label_tool"])
1179    
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