/[thuban]/branches/WIP-pyshapelib-bramz/Thuban/UI/mainwindow.py
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revision 312 by bh, Wed Sep 11 13:59:37 2002 UTC revision 1667 by bh, Thu Aug 28 10:21:05 2003 UTC
# Line 1  Line 1 
1  # Copyright (C) 2001, 2002 by Intevation GmbH  # Copyright (C) 2001, 2002, 2003 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    # $Id$
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 _
26  from Thuban.Model.session import create_empty_session  from Thuban.Model.session import create_empty_session
27  from Thuban.Model.layer import Layer  from Thuban.Model.layer import Layer, RasterLayer
28  from Thuban.Model.color import Color  from Thuban.Model.postgisdb import PostGISShapeStore, has_postgis_support
29  from Thuban.Model.proj import Projection  # XXX: replace this by
30    # from wxPython.lib.dialogs import wxMultipleChoiceDialog
31    # when Thuban does not support wxPython 2.4.0 any more.
32    from Thuban.UI.multiplechoicedialog import wxMultipleChoiceDialog
33    
34  import view  import view
35  import tree  import tree
 import proj4dialog  
36  import tableview, identifyview  import tableview, identifyview
37    from Thuban.UI.classifier import Classifier
38    import legend
39  from menu import Menu  from menu import Menu
40    
41  from context import Context  from context import Context
42  from command import registry, Command  from command import registry, Command, ToolCommand
43  from messages import SELECTED_SHAPE, VIEW_POSITION  from messages import LAYER_SELECTED, SHAPES_SELECTED, VIEW_POSITION, \
44         MAP_REPLACED
45    from about import About
46  # the directory where the toolbar icons are stored  
47  bitmapdir = os.path.join(Thuban.__path__[0], os.pardir, "Resources", "Bitmaps")  from Thuban.UI.dock import DockFrame
48  bitmapext = ".xpm"  from Thuban.UI.join import JoinDialog
49    from Thuban.UI.dbdialog import DBFrame, DBDialog, ChooseDBTableDialog
50    import resource
51  class MainWindow(wxFrame):  import Thuban.Model.resource
52    
53    import projdialog
54    
55    
56    class MainWindow(DockFrame):
57    
58        # Some messages that can be subscribed/unsubscribed directly through
59        # the MapCanvas come in fact from other objects. This is a map to
60        # map those messages to the names of the instance variables they
61        # actually come from. This delegation is implemented in the
62        # Subscribe and unsubscribed methods
63        delegated_messages = {LAYER_SELECTED: "canvas",
64                              SHAPES_SELECTED: "canvas",
65                              MAP_REPLACED: "canvas"}
66    
67        # Methods delegated to some instance variables. The delegation is
68        # implemented in the __getattr__ method.
69        delegated_methods = {"SelectLayer": "canvas",
70                             "SelectShapes": "canvas",
71                             "SelectedLayer": "canvas",
72                             "SelectedShapes": "canvas",
73                             }
74    
75      def __init__(self, parent, ID, title, application, interactor,      def __init__(self, parent, ID, title, application, interactor,
76                   initial_message = None, size = wxSize(-1, -1)):                   initial_message = None, size = wxSize(-1, -1)):
77          wxFrame.__init__(self, parent, ID, title, wxDefaultPosition, size)          DockFrame.__init__(self, parent, ID, title, wxDefaultPosition, size)
78            #wxFrame.__init__(self, parent, ID, title, wxDefaultPosition, size)
79    
80          self.application = application          self.application = application
         self.interactor = interactor  
81    
82          self.CreateStatusBar()          self.CreateStatusBar()
83          if initial_message:          if initial_message:
# Line 63  class MainWindow(wxFrame): Line 95  class MainWindow(wxFrame):
95          # call Realize to make sure that the tools appear.          # call Realize to make sure that the tools appear.
96          toolbar.Realize()          toolbar.Realize()
97    
98    
99          # Create the map canvas          # Create the map canvas
100          canvas = view.MapCanvas(self, -1, interactor)          canvas = view.MapCanvas(self, -1)
101          canvas.Subscribe(VIEW_POSITION, self.view_position_changed)          canvas.Subscribe(VIEW_POSITION, self.view_position_changed)
102            canvas.Subscribe(SHAPES_SELECTED, self.identify_view_on_demand)
103          self.canvas = canvas          self.canvas = canvas
104    
105            self.SetMainWindow(self.canvas)
106    
107            self.SetAutoLayout(True)
108    
109          self.init_dialogs()          self.init_dialogs()
110    
111          interactor.Subscribe(SELECTED_SHAPE, self.identify_view_on_demand)          self.ShowLegend()
112    
113          EVT_CLOSE(self, self.OnClose)          EVT_CLOSE(self, self.OnClose)
114    
115        def Subscribe(self, channel, *args):
116            """Subscribe a function to a message channel.
117    
118            If channel is one of the delegated messages call the appropriate
119            object's Subscribe method. Otherwise do nothing.
120            """
121            if channel in self.delegated_messages:
122                object = getattr(self, self.delegated_messages[channel])
123                object.Subscribe(channel, *args)
124            else:
125                print "Trying to subscribe to unsupported channel %s" % channel
126    
127        def Unsubscribe(self, channel, *args):
128            """Unsubscribe a function from a message channel.
129    
130            If channel is one of the delegated messages call the appropriate
131            object's Unsubscribe method. Otherwise do nothing.
132            """
133            if channel in self.delegated_messages:
134                object = getattr(self, self.delegated_messages[channel])
135                object.Unsubscribe(channel, *args)
136    
137        def __getattr__(self, attr):
138            """If attr is one of the delegated methods return that method
139    
140            Otherwise raise AttributeError.
141            """
142            if attr in self.delegated_methods:
143                return getattr(getattr(self, self.delegated_methods[attr]), attr)
144            raise AttributeError(attr)
145    
146      def init_ids(self):      def init_ids(self):
147          """Initialize the ids"""          """Initialize the ids"""
148          self.current_id = 6000          self.current_id = 6000
# Line 112  class MainWindow(wxFrame): Line 181  class MainWindow(wxFrame):
181          return menu_bar          return menu_bar
182    
183      def build_menu(self, menudesc):      def build_menu(self, menudesc):
184          """Build and return a wxMenu from a menudescription"""          """Return a wxMenu built from the menu description menudesc"""
185          wxmenu = wxMenu()          wxmenu = wxMenu()
186          last = None          last = None
187          for item in menudesc.items:          for item in menudesc.items:
             # here the items must all be Menu instances themselves  
188              if item is None:              if item is None:
189                  # a separator. Only add one if the last item was not a                  # a separator. Only add one if the last item was not a
190                  # separator                  # separator
# Line 169  class MainWindow(wxFrame): Line 237  class MainWindow(wxFrame):
237                              command.IsCheckCommand())                              command.IsCheckCommand())
238                  self.bind_command_events(command, ID)                  self.bind_command_events(command, ID)
239              else:              else:
240                  print "Unknown command %s" % name                  print _("Unknown command %s") % name
241    
242      def add_toolbar_command(self, toolbar, name):      def add_toolbar_command(self, toolbar, name):
243          """Add the command with name name to the toolbar toolbar.          """Add the command with name name to the toolbar toolbar.
# Line 184  class MainWindow(wxFrame): Line 252  class MainWindow(wxFrame):
252              command = registry.Command(name)              command = registry.Command(name)
253              if command is not None:              if command is not None:
254                  ID = self.get_id(name)                  ID = self.get_id(name)
255                  filename = os.path.join(bitmapdir, command.Icon()) + bitmapext                  bitmap = resource.GetBitmapResource(command.Icon(),
256                  bitmap = wxBitmap(filename, wxBITMAP_TYPE_XPM)                                                      wxBITMAP_TYPE_XPM)
257                  toolbar.AddTool(ID, bitmap,                  toolbar.AddTool(ID, bitmap,
258                                  shortHelpString = command.HelpText(),                                  shortHelpString = command.HelpText(),
259                                  isToggle = command.IsCheckCommand())                                  isToggle = command.IsCheckCommand())
260                  self.bind_command_events(command, ID)                  self.bind_command_events(command, ID)
261              else:              else:
262                  print "Unknown command %s" % name                  print _("Unknown command %s") % name
263    
264      def Context(self):      def Context(self):
265          """Return the context object for a command invoked from this window          """Return the context object for a command invoked from this window
# Line 204  class MainWindow(wxFrame): Line 272  class MainWindow(wxFrame):
272              command = registry.Command(name)              command = registry.Command(name)
273              command.Execute(self.Context())              command.Execute(self.Context())
274          else:          else:
275              print "Unknown command ID %d" % event.GetId()              print _("Unknown command ID %d") % event.GetId()
276    
277      def update_command_ui(self, event):      def update_command_ui(self, event):
278          #print "update_command_ui", self.id_to_name[event.GetId()]          #print "update_command_ui", self.id_to_name[event.GetId()]
279          context = self.Context()          context = self.Context()
280          command = registry.Command(self.id_to_name[event.GetId()])          command = registry.Command(self.id_to_name[event.GetId()])
281          if command is not None:          if command is not None:
282              event.Enable(command.Sensitive(context))              sensitive = command.Sensitive(context)
283                event.Enable(sensitive)
284                if command.IsTool() and not sensitive and command.Checked(context):
285                    # When a checked tool command is disabled deselect all
286                    # tools. Otherwise the tool would remain active but it
287                    # might lead to errors if the tools stays active. This
288                    # problem occurred in GREAT-ER and this fixes it, but
289                    # it's not clear to me whether this is really the best
290                    # way to do it (BH, 20021206).
291                    self.canvas.SelectTool(None)
292              event.SetText(command.DynText(context))              event.SetText(command.DynText(context))
293              if command.IsCheckCommand():              if command.IsCheckCommand():
294                  event.Check(command.Checked(context))                      event.Check(command.Checked(context))
295    
296      def RunMessageBox(self, title, text, flags = wxOK | wxICON_INFORMATION):      def RunMessageBox(self, title, text, flags = wxOK | wxICON_INFORMATION):
297          """Run a modal message box with the given text, title and flags          """Run a modal message box with the given text, title and flags
298          and return the result"""          and return the result"""
299          dlg = wxMessageDialog(self, text, title, flags)          dlg = wxMessageDialog(self, text, title, flags)
300            dlg.CenterOnParent()
301          result = dlg.ShowModal()          result = dlg.ShowModal()
302          dlg.Destroy()          dlg.Destroy()
303          return result          return result
# Line 233  class MainWindow(wxFrame): Line 311  class MainWindow(wxFrame):
311    
312      def add_dialog(self, name, dialog):      def add_dialog(self, name, dialog):
313          if self.dialogs.has_key(name):          if self.dialogs.has_key(name):
314              raise RuntimeError("The Dialog named %s is already open" % name)              raise RuntimeError(_("The Dialog named %s is already open") % name)
315          self.dialogs[name] = dialog          self.dialogs[name] = dialog
316    
317      def dialog_open(self, name):      def dialog_open(self, name):
# Line 251  class MainWindow(wxFrame): Line 329  class MainWindow(wxFrame):
329              text = "(%10.10g, %10.10g)" % pos              text = "(%10.10g, %10.10g)" % pos
330          else:          else:
331              text = ""              text = ""
332            self.set_position_text(text)
333    
334        def set_position_text(self, text):
335            """Set the statusbar text showing the current position.
336    
337            By default the text is shown in field 0 of the status bar.
338            Override this method in derived classes to put it into a
339            different field of the statusbar.
340            """
341          self.SetStatusText(text)          self.SetStatusText(text)
342    
343      def save_modified_session(self, can_veto = 1):      def save_modified_session(self, can_veto = 1):
# Line 266  class MainWindow(wxFrame): Line 353  class MainWindow(wxFrame):
353              flags = wxYES_NO | wxICON_QUESTION              flags = wxYES_NO | wxICON_QUESTION
354              if can_veto:              if can_veto:
355                  flags = flags | wxCANCEL                  flags = flags | wxCANCEL
356              result = self.RunMessageBox("Exit",              result = self.RunMessageBox(_("Exit"),
357                                          ("The session has been modified."                                          _("The session has been modified."
358                                           " Do you want to save it?"),                                           " Do you want to save it?"),
359                                          flags)                                          flags)
360              if result == wxID_YES:              if result == wxID_YES:
# Line 277  class MainWindow(wxFrame): Line 364  class MainWindow(wxFrame):
364          return result          return result
365    
366      def NewSession(self):      def NewSession(self):
367          self.save_modified_session()          if self.save_modified_session() != wxID_CANCEL:
368          self.application.SetSession(create_empty_session())              self.application.SetSession(create_empty_session())
369    
370      def OpenSession(self):      def OpenSession(self):
371          self.save_modified_session()          if self.save_modified_session() != wxID_CANCEL:
372          dlg = wxFileDialog(self, "Select a session file", ".", "",              dlg = wxFileDialog(self, _("Open Session"), ".", "",
373                             "*.thuban", wxOPEN)                                 "Thuban Session File (*.thuban)|*.thuban",
374          if dlg.ShowModal() == wxID_OK:                                 wxOPEN)
375              self.application.OpenSession(dlg.GetPath())              if dlg.ShowModal() == wxID_OK:
376          dlg.Destroy()                  self.application.OpenSession(dlg.GetPath(),
377                                                 self.run_db_param_dialog)
378                dlg.Destroy()
379    
380        def run_db_param_dialog(self, parameters, message):
381            dlg = DBDialog(self, _("DB Connection Parameters"), parameters,
382                           message)
383            return dlg.RunDialog()
384    
385      def SaveSession(self):      def SaveSession(self):
386          if self.application.session.filename == None:          if self.application.session.filename == None:
387              self.SaveSessionAs()              self.SaveSessionAs()
388          self.application.SaveSession()          else:
389                self.application.SaveSession()
390    
391      def SaveSessionAs(self):      def SaveSessionAs(self):
392          dlg = wxFileDialog(self, "Enter a filename for session", ".", "",          dlg = wxFileDialog(self, _("Save Session As"), ".", "",
393                             "*.thuban", wxOPEN)                             "Thuban Session File (*.thuban)|*.thuban",
394                               wxSAVE|wxOVERWRITE_PROMPT)
395          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wxID_OK:
396              self.application.session.SetFilename(dlg.GetPath())              self.application.session.SetFilename(dlg.GetPath())
397              self.application.SaveSession()              self.application.SaveSession()
398          dlg.Destroy()          dlg.Destroy()
399    
400      def Exit(self):      def Exit(self):
401          self.Close(false)          self.Close(False)
402    
403      def OnClose(self, event):      def OnClose(self, event):
404          result = self.save_modified_session(can_veto = event.CanVeto())          result = self.save_modified_session(can_veto = event.CanVeto())
# Line 313  class MainWindow(wxFrame): Line 409  class MainWindow(wxFrame):
409              # wx's destroy event, but that isn't implemented for wxGTK              # wx's destroy event, but that isn't implemented for wxGTK
410              # yet.              # yet.
411              self.canvas.Unsubscribe(VIEW_POSITION, self.view_position_changed)              self.canvas.Unsubscribe(VIEW_POSITION, self.view_position_changed)
412                DockFrame.OnClose(self, event)
413                for dlg in self.dialogs.values():
414                    dlg.Destroy()
415                self.canvas.Destroy()
416              self.Destroy()              self.Destroy()
417    
418      def SetMap(self, map):      def SetMap(self, map):
419          self.canvas.SetMap(map)          self.canvas.SetMap(map)
420            self.__SetTitle(map.Title())
421    
422            dialog = self.FindRegisteredDock("legend")
423            if dialog is not None:
424                dialog.GetPanel().SetMap(self.Map())
425    
426      def Map(self):      def Map(self):
427          """Return the map displayed by this mainwindow"""          """Return the map displayed by this mainwindow"""
428    
429          return self.canvas.Map()          return self.canvas.Map()
430    
431      def ShowSessionTree(self):      def ToggleSessionTree(self):
432            """If the session tree is shown close it otherwise create a new tree"""
433          name = "session_tree"          name = "session_tree"
434          dialog = self.get_open_dialog(name)          dialog = self.get_open_dialog(name)
435          if dialog is None:          if dialog is None:
436              dialog = tree.SessionTreeView(self, self.application, name)              dialog = tree.SessionTreeView(self, self.application, name)
437              self.add_dialog(name, dialog)              self.add_dialog(name, dialog)
438              dialog.Show(true)              dialog.Show(True)
439          else:          else:
440              # FIXME: bring dialog to front here              dialog.Close()
441              pass  
442        def SessionTreeShown(self):
443            """Return true iff the session tree is currently shown"""
444            return self.get_open_dialog("session_tree") is not None
445    
446      def About(self):      def About(self):
447          self.RunMessageBox("About",          dlg = About(self)
448                             ("Thuban is a program for\n"          dlg.ShowModal()
449                              "exploring geographic data.\n"          dlg.Destroy()
450                              "Copyright (C) 2001 Intevation GmbH.\n"  
451                              "Thuban is licensed under the GPL"),      def DatabaseManagement(self):
452                             wxOK | wxICON_INFORMATION)          name = "dbmanagement"
453            dialog = self.get_open_dialog(name)
454            if dialog is None:
455                map = self.canvas.Map()
456                dialog = DBFrame(self, name, self.application.Session())
457                self.add_dialog(name, dialog)
458                dialog.Show()
459            dialog.Raise()
460    
461      def AddLayer(self):      def AddLayer(self):
462          dlg = wxFileDialog(self, "Select a data file", ".", "", "*.*",          dlg = wxFileDialog(self, _("Select one or more data files"), ".", "",
463                               _("Shapefiles (*.shp)") + "|*.shp|" +
464                               _("All Files (*.*)") + "|*.*",
465                               wxOPEN | wxMULTIPLE)
466            if dlg.ShowModal() == wxID_OK:
467                filenames = dlg.GetPaths()
468                for filename in filenames:
469                    title = os.path.splitext(os.path.basename(filename))[0]
470                    map = self.canvas.Map()
471                    has_layers = map.HasLayers()
472                    try:
473                        store = self.application.Session().OpenShapefile(filename)
474                    except IOError:
475                        # the layer couldn't be opened
476                        self.RunMessageBox(_("Add Layer"),
477                                           _("Can't open the file '%s'.")%filename)
478                    else:
479                        layer = Layer(title, store)
480                        map.AddLayer(layer)
481                        if not has_layers:
482                            # if we're adding a layer to an empty map, fit the
483                            # new map to the window
484                            self.canvas.FitMapToWindow()
485            dlg.Destroy()
486    
487        def AddRasterLayer(self):
488            dlg = wxFileDialog(self, _("Select an image file"), ".", "", "*.*",
489                             wxOPEN)                             wxOPEN)
490          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wxID_OK:
491              filename = dlg.GetPath()              filename = dlg.GetPath()
492              title = os.path.splitext(os.path.basename(filename))[0]              title = os.path.splitext(os.path.basename(filename))[0]
             layer = Layer(title, filename)  
493              map = self.canvas.Map()              map = self.canvas.Map()
494              has_layers = map.HasLayers()              has_layers = map.HasLayers()
495              try:              try:
496                  map.AddLayer(layer)                  layer = RasterLayer(title, filename)
497              except IOError:              except IOError:
498                  # the layer couldn't be opened                  # the layer couldn't be opened
499                  self.RunMessageBox("Add Layer",                  self.RunMessageBox(_("Add Image Layer"),
500                                     "Can't open the file '%s'." % filename)                                     _("Can't open the file '%s'.") % filename)
501              else:              else:
502                    map.AddLayer(layer)
503                  if not has_layers:                  if not has_layers:
504                      # if we're adding a layer to an empty map, for the                      # if we're adding a layer to an empty map, fit the
505                      # new map to the window                      # new map to the window
506                      self.canvas.FitMapToWindow()                      self.canvas.FitMapToWindow()
507          dlg.Destroy()          dlg.Destroy()
508    
509        def AddDBLayer(self):
510            """Add a layer read from a database"""
511            session = self.application.Session()
512            dlg = ChooseDBTableDialog(self.application.Session(), self,-1, "")
513    
514            if dlg.ShowModal() == wxID_OK:
515                dbconn, dbtable = dlg.GetTable()
516                try:
517                    title = str(dbtable)
518    
519                    # Chose the correct Interface for the database type
520                    store = PostGISShapeStore(dbconn, dbtable)
521                    session.AddShapeStore(store)
522                    layer = Layer(title, store)
523                except:
524                    # Some error occured while initializing the layer
525                    self.RunMessageBox(_("Add Layer from database"),
526                                       _("Can't open the database table '%s'")
527                                       % dbtable)
528    
529                map = self.canvas.Map()
530    
531                has_layers = map.HasLayers()
532                map.AddLayer(layer)
533                if not has_layers:
534                    self.canvas.FitMapToWindow()
535    
536            dlg.Destroy()
537    
538      def RemoveLayer(self):      def RemoveLayer(self):
539          layer = self.current_layer()          layer = self.current_layer()
540          if layer is not None:          if layer is not None:
# Line 371  class MainWindow(wxFrame): Line 543  class MainWindow(wxFrame):
543      def CanRemoveLayer(self):      def CanRemoveLayer(self):
544          """Return true if the currently selected layer can be deleted.          """Return true if the currently selected layer can be deleted.
545    
546          If no layer is selected return false.          If no layer is selected return False.
547    
548          The return value of this method determines whether the remove          The return value of this method determines whether the remove
549          layer command is sensitive in menu.          layer command is sensitive in menu.
# Line 379  class MainWindow(wxFrame): Line 551  class MainWindow(wxFrame):
551          layer = self.current_layer()          layer = self.current_layer()
552          if layer is not None:          if layer is not None:
553              return self.canvas.Map().CanRemoveLayer(layer)              return self.canvas.Map().CanRemoveLayer(layer)
554          return 0          return False
555    
556      def RaiseLayer(self):      def RaiseLayer(self):
557          layer = self.current_layer()          layer = self.current_layer()
# Line 396  class MainWindow(wxFrame): Line 568  class MainWindow(wxFrame):
568    
569          If no layer is selected, return None          If no layer is selected, return None
570          """          """
571          return self.interactor.SelectedLayer()          return self.canvas.SelectedLayer()
572    
573      def has_selected_layer(self):      def has_selected_layer(self):
574          """Return true if a layer is currently selected"""          """Return true if a layer is currently selected"""
575          return self.interactor.HasSelectedLayer()          return self.canvas.HasSelectedLayer()
   
     def choose_color(self):  
         """Run the color selection dialog and return the selected color.  
576    
577          If the user cancels, return None.      def has_selected_shapes(self):
578          """          """Return true if a shape is currently selected"""
579          dlg = wxColourDialog(self)          return self.canvas.HasSelectedShapes()
         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  
580    
581      def LayerFillColor(self):      def HideLayer(self):
582          layer = self.current_layer()          layer = self.current_layer()
583          if layer is not None:          if layer is not None:
584              color = self.choose_color()              layer.SetVisible(0)
             if color is not None:  
                 layer.SetFill(color)  
585    
586      def LayerTransparentFill(self):      def ShowLayer(self):
587          layer = self.current_layer()          layer = self.current_layer()
588          if layer is not None:          if layer is not None:
589              layer.SetFill(None)              layer.SetVisible(1)
590    
591      def LayerOutlineColor(self):      def DuplicateLayer(self):
592            """Ceate a new layer above the selected layer with the same shapestore
593            """
594          layer = self.current_layer()          layer = self.current_layer()
595          if layer is not None:          if layer is not None and hasattr(layer, "ShapeStore"):
596              color = self.choose_color()              new_layer = Layer(_("Copy of `%s'") % layer.Title(),
597              if color is not None:                                layer.ShapeStore(),
598                  layer.SetStroke(color)                                projection = layer.GetProjection())
599                new_classification = copy.deepcopy(layer.GetClassification())
600                new_layer.SetClassification(new_classification)
601                self.Map().AddLayer(new_layer)
602    
603      def LayerNoOutline(self):      def CanDuplicateLayer(self):
604            """Return whether the DuplicateLayer method can create a duplicate"""
605          layer = self.current_layer()          layer = self.current_layer()
606          if layer is not None:          return layer is not None and hasattr(layer, "ShapeStore")
             layer.SetStroke(None)  
   
     def HideLayer(self):  
         layer = self.current_layer()  
         if layer is not None:  
             layer.SetVisible(0)  
           
     def ShowLayer(self):  
         layer = self.current_layer()  
         if layer is not None:  
             layer.SetVisible(1)  
607    
608      def LayerShowTable(self):      def LayerShowTable(self):
609          layer = self.current_layer()          layer = self.current_layer()
610          if layer is not None:          if layer is not None:
611              table = layer.table              table = layer.ShapeStore().Table()
612              name = "table_view" + str(id(table))              name = "table_view" + str(id(table))
613              dialog = self.get_open_dialog(name)              dialog = self.get_open_dialog(name)
614              if dialog is None:              if dialog is None:
615                  dialog = tableview.LayerTableFrame(self, self.interactor, name,                  dialog = tableview.LayerTableFrame(self, name,
616                                                     "Table: %s" % layer.Title(),                                           _("Layer Table: %s") % layer.Title(),
617                                                     layer, table)                                           layer, table)
618                  self.add_dialog(name, dialog)                  self.add_dialog(name, dialog)
619                  dialog.Show(true)                  dialog.Show(True)
620              else:              else:
621                  # FIXME: bring dialog to front here                  # FIXME: bring dialog to front here
622                  pass                  pass
623    
624      def Projection(self):      def MapProjection(self):
625          map = self.canvas.Map()  
626          proj = map.projection          name = "map_projection"
627          if proj is None:          dialog = self.get_open_dialog(name)
628              proj4Dlg = proj4dialog.Proj4Dialog(NULL, None, map.BoundingBox())  
629          else:          if dialog is None:
630              proj4Dlg = proj4dialog.Proj4Dialog(NULL, map.projection.params,              map = self.canvas.Map()
631                                                 map.BoundingBox())              dialog = projdialog.ProjFrame(self, name,
632          if proj4Dlg.ShowModal() == wxID_OK:                       _("Map Projection: %s") % map.Title(), map)
633              params = proj4Dlg.GetParams()              self.add_dialog(name, dialog)
634              if params is not None:              dialog.Show()
635                  proj = Projection(params)          dialog.Raise()
636    
637        def LayerProjection(self):
638    
639            layer = self.current_layer()
640    
641            name = "layer_projection" + str(id(layer))
642            dialog = self.get_open_dialog(name)
643    
644            if dialog is None:
645                map = self.canvas.Map()
646                dialog = projdialog.ProjFrame(self, name,
647                         _("Layer Projection: %s") % layer.Title(), layer)
648                self.add_dialog(name, dialog)
649                dialog.Show()
650            dialog.Raise()
651    
652        def LayerEditProperties(self):
653    
654            #
655            # the menu option for this should only be available if there
656            # is a current layer, so we don't need to check if the
657            # current layer is None
658            #
659    
660            layer = self.current_layer()
661            self.OpenLayerProperties(layer)
662    
663        def OpenLayerProperties(self, layer, group = None):
664            name = "layer_properties" + str(id(layer))
665            dialog = self.get_open_dialog(name)
666    
667            if dialog is None:
668                dialog = Classifier(self, name, self.Map(), layer, group)
669                self.add_dialog(name, dialog)
670                dialog.Show()
671            dialog.Raise()
672    
673        def LayerJoinTable(self):
674            layer = self.canvas.SelectedLayer()
675            if layer is not None:
676                dlg = JoinDialog(self, _("Join Layer with Table"),
677                                 self.application.session,
678                                 layer = layer)
679                dlg.ShowModal()
680    
681        def LayerUnjoinTable(self):
682            layer = self.canvas.SelectedLayer()
683            if layer is not None:
684                orig_store = layer.ShapeStore().OrigShapeStore()
685                if orig_store:
686                    layer.SetShapeStore(orig_store)
687    
688        def ShowLegend(self):
689            if not self.LegendShown():
690                self.ToggleLegend()
691    
692        def ToggleLegend(self):
693            """Show the legend if it's not shown otherwise hide it again"""
694            name = "legend"
695            dialog = self.FindRegisteredDock(name)
696    
697            if dialog is None:
698                dialog = self.CreateDock(name, -1, _("Legend"), wxLAYOUT_LEFT)
699                legend.LegendPanel(dialog, None, self)
700                dialog.Dock()
701                dialog.GetPanel().SetMap(self.Map())
702                dialog.Show()
703            else:
704                dialog.Show(not dialog.IsShown())
705    
706        def LegendShown(self):
707            """Return true iff the legend is currently open"""
708            dialog = self.FindRegisteredDock("legend")
709            return dialog is not None and dialog.IsShown()
710    
711        def TableOpen(self):
712            dlg = wxFileDialog(self, _("Open Table"), ".", "",
713                               _("DBF Files (*.dbf)") + "|*.dbf|" +
714                               #_("CSV Files (*.csv)") + "|*.csv|" +
715                               _("All Files (*.*)") + "|*.*",
716                               wxOPEN)
717            if dlg.ShowModal() == wxID_OK:
718                filename = dlg.GetPath()
719                dlg.Destroy()
720                try:
721                    table = self.application.session.OpenTableFile(filename)
722                except IOError:
723                    # the layer couldn't be opened
724                    self.RunMessageBox(_("Open Table"),
725                                       _("Can't open the file '%s'.") % filename)
726              else:              else:
727                  proj = None                  self.ShowTableView(table)
728              map.SetProjection(proj)  
729          proj4Dlg.Destroy()      def TableClose(self):
730            tables = self.application.session.UnreferencedTables()
731    
732            lst = [(t.Title(), t) for t in tables]
733            lst.sort()
734            titles = [i[0] for i in lst]
735            dlg = wxMultipleChoiceDialog(self, _("Pick the tables to close:"),
736                                         _("Close Table"), titles,
737                                         size = (400, 300),
738                                         style = wxDEFAULT_DIALOG_STYLE |
739                                                 wxRESIZE_BORDER)
740            if dlg.ShowModal() == wxID_OK:
741                for i in dlg.GetValue():
742                    self.application.session.RemoveTable(lst[i][1])
743    
744    
745        def TableShow(self):
746            """Offer a multi-selection dialog for tables to be displayed
747    
748            The windows for the selected tables are opened or brought to
749            the front.
750            """
751            tables = self.application.session.Tables()
752    
753            lst = [(t.Title(), t) for t in tables]
754            lst.sort()
755            titles = [i[0] for i in lst]
756            dlg = wxMultipleChoiceDialog(self, _("Pick the table to show:"),
757                                         _("Show Table"), titles,
758                                         size = (400,300),
759                                         style = wxDEFAULT_DIALOG_STYLE |
760                                                 wxRESIZE_BORDER)
761            if (dlg.ShowModal() == wxID_OK):
762                for i in dlg.GetValue():
763                    # XXX: if the table belongs to a layer, open a
764                    # LayerTableFrame instead of QueryTableFrame
765                    self.ShowTableView(lst[i][1])
766    
767        def TableJoin(self):
768            dlg = JoinDialog(self, _("Join Tables"), self.application.session)
769            dlg.ShowModal()
770    
771        def ShowTableView(self, table):
772            """Open a table view for the table and optionally"""
773            name = "table_view%d" % id(table)
774            dialog = self.get_open_dialog(name)
775            if dialog is None:
776                dialog = tableview.QueryTableFrame(self, name,
777                                                   _("Table: %s") % table.Title(),
778                                                   table)
779                self.add_dialog(name, dialog)
780                dialog.Show(True)
781            dialog.Raise()
782    
783        def TableRename(self):
784            """Let the user rename a table"""
785    
786            # First, let the user select a table
787            tables = self.application.session.Tables()
788            lst = [(t.Title(), t) for t in tables]
789            lst.sort()
790            titles = [i[0] for i in lst]
791            dlg = wxMultipleChoiceDialog(self, _("Pick the table to rename:"),
792                                         _("Rename Table"), titles,
793                                         size = (400,300),
794                                         style = wxDEFAULT_DIALOG_STYLE |
795                                                 wxRESIZE_BORDER)
796            if (dlg.ShowModal() == wxID_OK):
797                to_rename = [lst[i][1] for i in dlg.GetValue()]
798                dlg.Destroy()
799            else:
800                to_rename = []
801    
802            # Second, let the user rename the layers
803            for table in to_rename:
804                dlg = wxTextEntryDialog(self, "Table Title: ", "Rename Table",
805                                        table.Title())
806                try:
807                    if dlg.ShowModal() == wxID_OK:
808                        title = dlg.GetValue()
809                        if title != "":
810                            table.SetTitle(title)
811    
812                            # Make sure the session is marked as modified.
813                            # FIXME: This should be handled automatically,
814                            # but that requires more changes to the tables
815                            # than I have time for currently.
816                            self.application.session.changed()
817                finally:
818                    dlg.Destroy()
819    
820    
821      def ZoomInTool(self):      def ZoomInTool(self):
822          self.canvas.ZoomInTool()          self.canvas.ZoomInTool()
# Line 504  class MainWindow(wxFrame): Line 837  class MainWindow(wxFrame):
837      def FullExtent(self):      def FullExtent(self):
838          self.canvas.FitMapToWindow()          self.canvas.FitMapToWindow()
839    
840        def FullLayerExtent(self):
841            self.canvas.FitLayerToWindow(self.current_layer())
842    
843        def FullSelectionExtent(self):
844            self.canvas.FitSelectedToWindow()
845    
846        def ExportMap(self):
847            self.canvas.Export()
848    
849      def PrintMap(self):      def PrintMap(self):
850          self.canvas.Print()          self.canvas.Print()
851    
852      def identify_view_on_demand(self, layer, shape):      def RenameMap(self):
853            dlg = wxTextEntryDialog(self, "Map Title: ", "Rename Map",
854                                    self.Map().Title())
855            if dlg.ShowModal() == wxID_OK:
856                title = dlg.GetValue()
857                if title != "":
858                    self.Map().SetTitle(title)
859                    self.__SetTitle(title)
860    
861            dlg.Destroy()
862    
863        def RenameLayer(self):
864            """Let the user rename the currently selected layer"""
865            layer = self.current_layer()
866            if layer is not None:
867                dlg = wxTextEntryDialog(self, "Layer Title: ", "Rename Layer",
868                                        layer.Title())
869                try:
870                    if dlg.ShowModal() == wxID_OK:
871                        title = dlg.GetValue()
872                        if title != "":
873                            layer.SetTitle(title)
874                finally:
875                    dlg.Destroy()
876    
877        def identify_view_on_demand(self, layer, shapes):
878            """Subscribed to the canvas' SHAPES_SELECTED message
879    
880            If the current tool is the identify tool, at least one shape is
881            selected and the identify dialog is not shown, show the dialog.
882            """
883            # If the selection has become empty we don't need to do
884            # anything. Otherwise it could happen that the dialog was popped
885            # up when the selection became empty, e.g. when a new selection
886            # is opened while the identify tool is active and dialog had
887            # been closed
888            if not shapes:
889                return
890    
891          name = "identify_view"          name = "identify_view"
892          if self.canvas.CurrentTool() == "IdentifyTool":          if self.canvas.CurrentTool() == "IdentifyTool":
893              if not self.dialog_open(name):              if not self.dialog_open(name):
894                  dialog = identifyview.IdentifyView(self, self.interactor, name)                  dialog = identifyview.IdentifyView(self, name)
895                  self.add_dialog(name, dialog)                  self.add_dialog(name, dialog)
896                  dialog.Show(true)                  dialog.Show(True)
897              else:              else:
898                  # FIXME: bring dialog to front?                  # FIXME: bring dialog to front?
899                  pass                  pass
900    
901        def __SetTitle(self, title):
902            self.SetTitle("Thuban - " + title)
903    
904  #  #
905  # Define all the commands available in the main window  # Define all the commands available in the main window
906  #  #
# Line 529  def call_method(context, methodname, *ar Line 912  def call_method(context, methodname, *ar
912      apply(getattr(context.mainwindow, methodname), args)      apply(getattr(context.mainwindow, methodname), args)
913    
914  def _method_command(name, title, method, helptext = "",  def _method_command(name, title, method, helptext = "",
915                      icon = "", sensitive = None):                      icon = "", sensitive = None, checked = None):
916      """Add a command implemented by a method of the mainwindow object"""      """Add a command implemented by a method of the mainwindow object"""
917      registry.Add(Command(name, title, call_method, args=(method,),      registry.Add(Command(name, title, call_method, args=(method,),
918                           helptext = helptext, icon = icon,                           helptext = helptext, icon = icon,
919                           sensitive = sensitive))                           sensitive = sensitive, checked = checked))
920    
921  def make_check_current_tool(toolname):  def make_check_current_tool(toolname):
922      """Return a function that tests if the currently active tool is toolname      """Return a function that tests if the currently active tool is toolname
# Line 549  def make_check_current_tool(toolname): Line 932  def make_check_current_tool(toolname):
932  def _tool_command(name, title, method, toolname, helptext = "",  def _tool_command(name, title, method, toolname, helptext = "",
933                    icon = "", sensitive = None):                    icon = "", sensitive = None):
934      """Add a tool command"""      """Add a tool command"""
935      registry.Add(Command(name, title, call_method, args=(method,),      registry.Add(ToolCommand(name, title, call_method, args=(method,),
936                           helptext = helptext, icon = icon,                               helptext = helptext, icon = icon,
937                           checked = make_check_current_tool(toolname),                               checked = make_check_current_tool(toolname),
938                           sensitive = sensitive))                               sensitive = sensitive))
939    
940  def _has_selected_layer(context):  def _has_selected_layer(context):
941      """Return true if a layer is selected in the context"""      """Return true if a layer is selected in the context"""
942      return context.mainwindow.has_selected_layer()      return context.mainwindow.has_selected_layer()
943    
944    def _has_selected_shapes(context):
945        """Return true if a layer is selected in the context"""
946        return context.mainwindow.has_selected_shapes()
947    
948  def _can_remove_layer(context):  def _can_remove_layer(context):
949      return context.mainwindow.CanRemoveLayer()      return context.mainwindow.CanRemoveLayer()
950    
951  def _has_tree_window_shown(context):  def _has_tree_window_shown(context):
952      """Return true if the tree window is shown"""      """Return true if the tree window is shown"""
953      return context.mainwindow.get_open_dialog("session_tree") is None      return context.mainwindow.SessionTreeShown()
954    
955  def _has_visible_map(context):  def _has_visible_map(context):
956      """Return true iff theres a visible map in the mainwindow.      """Return true iff theres a visible map in the mainwindow.
# Line 576  def _has_visible_map(context): Line 963  def _has_visible_map(context):
963                  return 1                  return 1
964      return 0      return 0
965    
966    def _has_legend_shown(context):
967        """Return true if the legend window is shown"""
968        return context.mainwindow.LegendShown()
969    
970    def _has_gdal_support(context):
971        """Return True if the GDAL is available"""
972        return Thuban.Model.resource.has_gdal_support()
973    
974    def _has_dbconnections(context):
975        """Return whether the the session has database connections"""
976        return context.session.HasDBConnections()
977    
978    def _has_postgis_support(context):
979        return has_postgis_support()
980    
981    
982  # File menu  # File menu
983  _method_command("new_session", "&New Session", "NewSession")  _method_command("new_session", _("&New Session"), "NewSession",
984  _method_command("open_session", "&Open Session", "OpenSession")                  helptext = _("Start a new session"))
985  _method_command("save_session", "&Save Session", "SaveSession")  _method_command("open_session", _("&Open Session..."), "OpenSession",
986  _method_command("save_session_as", "Save Session &As", "SaveSessionAs")                  helptext = _("Open a session file"))
987  _method_command("show_session_tree", "Show Session &Tree", "ShowSessionTree",  _method_command("save_session", _("&Save Session"), "SaveSession",
988                  sensitive = _has_tree_window_shown)                  helptext =_("Save this session to the file it was opened from"))
989  _method_command("exit", "E&xit", "Exit")  _method_command("save_session_as", _("Save Session &As..."), "SaveSessionAs",
990                    helptext = _("Save this session to a new file"))
991    _method_command("toggle_session_tree", _("Session &Tree"), "ToggleSessionTree",
992                    checked = _has_tree_window_shown,
993                    helptext = _("Toggle on/off the session tree analysis window"))
994    _method_command("toggle_legend", _("Legend"), "ToggleLegend",
995                    checked = _has_legend_shown,
996                    helptext = _("Toggle Legend on/off"))
997    _method_command("database_management", _("&Database Connections..."),
998                    "DatabaseManagement",
999                    sensitive = _has_postgis_support)
1000    _method_command("exit", _("E&xit"), "Exit",
1001                    helptext = _("Finish working with Thuban"))
1002    
1003  # Help menu  # Help menu
1004  _method_command("help_about", "&About", "About")  _method_command("help_about", _("&About..."), "About",
1005                    helptext = _("Info about Thuban authors, version and modules"))
1006    
1007    
1008  # Map menu  # Map menu
1009  _method_command("map_projection", "Pro&jection", "Projection")  _method_command("map_projection", _("Pro&jection..."), "MapProjection",
1010                    helptext = _("Set or change the map projection"))
1011    
1012  _tool_command("map_zoom_in_tool", "&Zoom in", "ZoomInTool", "ZoomInTool",  _tool_command("map_zoom_in_tool", _("&Zoom in"), "ZoomInTool", "ZoomInTool",
1013                helptext = "Switch to map-mode 'zoom-in'", icon = "zoom_in",                helptext = _("Switch to map-mode 'zoom-in'"), icon = "zoom_in",
1014                sensitive = _has_visible_map)                sensitive = _has_visible_map)
1015  _tool_command("map_zoom_out_tool", "Zoom &out", "ZoomOutTool", "ZoomOutTool",  _tool_command("map_zoom_out_tool", _("Zoom &out"), "ZoomOutTool", "ZoomOutTool",
1016                helptext = "Switch to map-mode 'zoom-out'", icon = "zoom_out",                helptext = _("Switch to map-mode 'zoom-out'"), icon = "zoom_out",
1017                sensitive = _has_visible_map)                sensitive = _has_visible_map)
1018  _tool_command("map_pan_tool", "&Pan", "PanTool", "PanTool",  _tool_command("map_pan_tool", _("&Pan"), "PanTool", "PanTool",
1019                helptext = "Switch to map-mode 'pan'", icon = "pan",                helptext = _("Switch to map-mode 'pan'"), icon = "pan",
1020                sensitive = _has_visible_map)                sensitive = _has_visible_map)
1021  _tool_command("map_identify_tool", "&Identify", "IdentifyTool", "IdentifyTool",  _tool_command("map_identify_tool", _("&Identify"), "IdentifyTool",
1022                helptext = "Switch to map-mode 'identify'", icon = "identify",                "IdentifyTool",
1023                  helptext = _("Switch to map-mode 'identify'"), icon = "identify",
1024                sensitive = _has_visible_map)                sensitive = _has_visible_map)
1025  _tool_command("map_label_tool", "&Label", "LabelTool", "LabelTool",  _tool_command("map_label_tool", _("&Label"), "LabelTool", "LabelTool",
1026                helptext = "Add/Remove labels", icon = "label",                helptext = _("Add/Remove labels"), icon = "label",
1027                sensitive = _has_visible_map)                sensitive = _has_visible_map)
1028  _method_command("map_full_extent", "&Full extent", "FullExtent",  _method_command("map_full_extent", _("&Full extent"), "FullExtent",
1029                 helptext = "Full Extent", icon = "fullextent",                 helptext = _("Zoom to the full map extent"), icon = "fullextent",
1030                sensitive = _has_visible_map)                sensitive = _has_visible_map)
1031  _method_command("map_print", "Prin&t", "PrintMap", helptext = "Print the map")  _method_command("layer_full_extent", _("&Full layer extent"), "FullLayerExtent",
1032                    helptext = _("Zoom to the full layer extent"),
1033                    icon = "fulllayerextent", sensitive = _has_selected_layer)
1034    _method_command("selected_full_extent", _("&Full selection extent"),
1035                    "FullSelectionExtent",
1036                    helptext = _("Zoom to the full selection extent"),
1037                    icon = "fullselextent", sensitive = _has_selected_shapes)
1038    _method_command("map_export", _("E&xport"), "ExportMap",
1039                    helptext = _("Export the map to file"))
1040    _method_command("map_print", _("Prin&t"), "PrintMap",
1041                    helptext = _("Print the map"))
1042    _method_command("map_rename", _("&Rename..."), "RenameMap",
1043                    helptext = _("Rename the map"))
1044    _method_command("layer_add", _("&Add Layer..."), "AddLayer",
1045                    helptext = _("Add a new layer to the map"))
1046    _method_command("rasterlayer_add", _("&Add Image Layer..."), "AddRasterLayer",
1047                    helptext = _("Add a new image layer to the map"),
1048                    sensitive = _has_gdal_support)
1049    _method_command("layer_add_db", _("Add &Database Layer..."), "AddDBLayer",
1050                    helptext = _("Add a new database layer to active map"),
1051                    sensitive = _has_dbconnections)
1052    _method_command("layer_remove", _("&Remove Layer"), "RemoveLayer",
1053                    helptext = _("Remove selected layer"),
1054                    sensitive = _can_remove_layer)
1055    
1056  # Layer menu  # Layer menu
1057  _method_command("layer_add", "&Add Layer", "AddLayer",  _method_command("layer_projection", _("Pro&jection..."), "LayerProjection",
1058                  helptext = "Add a new layer to active map")                  sensitive = _has_selected_layer,
1059  _method_command("layer_remove", "&Remove Layer", "RemoveLayer",                  helptext = _("Specify projection for selected layer"))
1060                  helptext = "Remove selected layer(s)",  _method_command("layer_duplicate", _("&Duplicate"), "DuplicateLayer",
1061                  sensitive = _can_remove_layer)                  helptext = _("Duplicate selected layer"),
1062  _method_command("layer_fill_color", "&Fill Color", "LayerFillColor",            sensitive = lambda context: context.mainwindow.CanDuplicateLayer())
1063                  helptext = "Set the fill color of selected layer(s)",  _method_command("layer_rename", _("Re&name ..."), "RenameLayer",
1064                  sensitive = _has_selected_layer)                  helptext = _("Rename selected layer"),
 _method_command("layer_transparent_fill", "&Transparent Fill",  
                 "LayerTransparentFill",  
                 helptext = "Do not fill the selected layer(s)",  
                 sensitive = _has_selected_layer)  
 _method_command("layer_outline_color", "&Outline Color", "LayerOutlineColor",  
                 helptext = "Set the outline color of selected layer(s)",  
1065                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1066  _method_command("layer_no_outline", "&No Outline", "LayerNoOutline",  _method_command("layer_raise", _("&Raise"), "RaiseLayer",
1067                  helptext = "Do not draw the outline of the selected layer(s)",                  helptext = _("Raise selected layer"),
1068                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1069  _method_command("layer_raise", "&Raise", "RaiseLayer",  _method_command("layer_lower", _("&Lower"), "LowerLayer",
1070                  helptext = "Raise selected layer(s)",                  helptext = _("Lower selected layer"),
1071                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1072  _method_command("layer_lower", "&Lower", "LowerLayer",  _method_command("layer_show", _("&Show"), "ShowLayer",
1073                  helptext = "Lower selected layer(s)",                  helptext = _("Make selected layer visible"),
1074                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1075  _method_command("layer_show", "&Show", "ShowLayer",  _method_command("layer_hide", _("&Hide"), "HideLayer",
1076                  helptext = "Make selected layer(s) visible",                  helptext = _("Make selected layer unvisible"),
1077                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1078  _method_command("layer_hide", "&Hide", "HideLayer",  _method_command("layer_show_table", _("Show Ta&ble"), "LayerShowTable",
1079                  helptext = "Make selected layer(s) unvisible",                  helptext = _("Show the selected layer's table"),
                 sensitive = _has_selected_layer)  
 _method_command("layer_show_table", "Show Ta&ble", "LayerShowTable",  
                 helptext = "Show the selected layer's table",  
1080                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1081    _method_command("layer_properties", _("&Properties..."), "LayerEditProperties",
1082                    sensitive = _has_selected_layer,
1083                    helptext = _("Edit the properties of the selected layer"))
1084    _method_command("layer_jointable", _("&Join Table..."), "LayerJoinTable",
1085                    sensitive = _has_selected_layer,
1086                    helptext = _("Join and attach a table to the selected layer"))
1087    
1088    def _can_unjoin(context):
1089        """Return whether the Layer/Unjoin command can be executed.
1090    
1091  # the menu structure      This is the case if a layer is selected and that layer has a
1092  main_menu = Menu("<main>", "<main>",      shapestore that has an original shapestore.
1093                   [Menu("file", "&File",      """
1094                         ["new_session", "open_session", None,      layer = context.mainwindow.SelectedLayer()
1095                          "save_session", "save_session_as", None,      if layer is None:
1096                          "show_session_tree", None,          return 0
1097                          "exit"]),      getstore = getattr(layer, "ShapeStore", None)
1098                    Menu("map", "&Map",      if getstore is not None:
1099                         ["layer_add", "layer_remove",          return getstore().OrigShapeStore() is not None
1100        else:
1101            return 0
1102    _method_command("layer_unjointable", _("&Unjoin Table..."), "LayerUnjoinTable",
1103                    sensitive = _can_unjoin,
1104                    helptext = _("Undo the last join operation"))
1105    
1106    
1107    def _has_tables(context):
1108        return bool(context.session.Tables())
1109    
1110    # Table menu
1111    _method_command("table_open", _("&Open..."), "TableOpen",
1112                    helptext = _("Open a DBF-table from a file"))
1113    _method_command("table_close", _("&Close..."), "TableClose",
1114           sensitive = lambda context: bool(context.session.UnreferencedTables()),
1115                    helptext = _("Close one or more tables from a list"))
1116    _method_command("table_rename", _("&Rename..."), "TableRename",
1117                    sensitive = _has_tables,
1118                    helptext = _("Rename one or more tables"))
1119    _method_command("table_show", _("&Show..."), "TableShow",
1120                    sensitive = _has_tables,
1121                    helptext = _("Show one or more tables in a dialog"))
1122    _method_command("table_join", _("&Join..."), "TableJoin",
1123                    sensitive = _has_tables,
1124                    helptext = _("Join two tables creating a new one"))
1125    
1126    #  Export only under Windows ...
1127    map_menu = ["layer_add", "layer_add_db", "rasterlayer_add", "layer_remove",
1128                          None,                          None,
1129                            "map_rename",
1130                          "map_projection",                          "map_projection",
1131                          None,                          None,
1132                          "map_zoom_in_tool", "map_zoom_out_tool",                          "map_zoom_in_tool", "map_zoom_out_tool",
1133                          "map_pan_tool", "map_identify_tool", "map_label_tool",                          "map_pan_tool",
                         None,  
1134                          "map_full_extent",                          "map_full_extent",
1135                            "layer_full_extent",
1136                            "selected_full_extent",
1137                          None,                          None,
1138                          "map_print"]),                          "map_identify_tool", "map_label_tool",
1139                    Menu("layer", "&Layer",                          None,
1140                         ["layer_fill_color", "layer_transparent_fill",                          "toggle_legend",
1141                          "layer_outline_color", "layer_no_outline",                          None]
1142    if wxPlatform == '__WXMSW__':
1143        map_menu.append("map_export")
1144    map_menu.append("map_print")
1145    
1146    # the menu structure
1147    main_menu = Menu("<main>", "<main>",
1148                     [Menu("file", _("&File"),
1149                           ["new_session", "open_session", None,
1150                            "save_session", "save_session_as", None,
1151                            "database_management", None,
1152                            "toggle_session_tree", None,
1153                            "exit"]),
1154                      Menu("map", _("&Map"), map_menu),
1155                      Menu("layer", _("&Layer"),
1156                           ["layer_rename", "layer_duplicate",
1157                          None,                          None,
1158                          "layer_raise", "layer_lower",                          "layer_raise", "layer_lower",
1159                          None,                          None,
1160                          "layer_show", "layer_hide",                          "layer_show", "layer_hide",
1161                          None,                          None,
1162                          "layer_show_table"]),                          "layer_projection",
1163                    Menu("help", "&Help",                          None,
1164                            "layer_show_table",
1165                            "layer_jointable",
1166                            "layer_unjointable",
1167                            None,
1168                            "layer_properties"]),
1169                      Menu("table", _("&Table"),
1170                           ["table_open", "table_close", "table_rename",
1171                           None,
1172                           "table_show",
1173                           None,
1174                           "table_join"]),
1175                      Menu("help", _("&Help"),
1176                         ["help_about"])])                         ["help_about"])])
1177    
1178  # the main toolbar  # the main toolbar
1179    
1180  main_toolbar = Menu("<toolbar>", "<toolbar>",  main_toolbar = Menu("<toolbar>", "<toolbar>",
1181                      ["map_zoom_in_tool", "map_zoom_out_tool", "map_pan_tool",                      ["map_zoom_in_tool", "map_zoom_out_tool", "map_pan_tool",
1182                       "map_identify_tool", "map_label_tool", "map_full_extent"])                       "map_full_extent",
1183                         "layer_full_extent",
1184                         "selected_full_extent",
1185                         None,
1186                         "map_identify_tool", "map_label_tool"])
1187    
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