/[thuban]/branches/WIP-pyshapelib-bramz/Thuban/UI/mainwindow.py
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revision 310 by bh, Tue Sep 10 16:45:22 2002 UTC revision 1648 by bh, Mon Aug 25 13:55:35 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    from wxPython.wx import __version__ as wxPython_version
23    
24  import Thuban  import Thuban
25    import Thuban.version
26    
27    from Thuban import _
28  from Thuban.Model.session import create_empty_session  from Thuban.Model.session import create_empty_session
29  from Thuban.Model.layer import Layer  from Thuban.Model.layer import Layer, RasterLayer
30  from Thuban.Model.color import Color  from Thuban.Model.postgisdb import PostGISShapeStore, has_postgis_support
31  from Thuban.Model.proj import Projection  # XXX: replace this by
32    # from wxPython.lib.dialogs import wxMultipleChoiceDialog
33    # when Thuban does not support wxPython 2.4.0 any more.
34    from Thuban.UI.multiplechoicedialog import wxMultipleChoiceDialog
35    
36  import view  import view
37  import tree  import tree
 import proj4dialog  
38  import tableview, identifyview  import tableview, identifyview
39    from Thuban.UI.classifier import Classifier
40    import legend
41  from menu import Menu  from menu import Menu
42    
43  from context import Context  from context import Context
44  from command import registry, Command  from command import registry, Command, ToolCommand
45  from messages import SELECTED_SHAPE, VIEW_POSITION  from messages import LAYER_SELECTED, SHAPES_SELECTED, VIEW_POSITION, \
46         MAP_REPLACED
47    from about import About
48  # the directory where the toolbar icons are stored  
49  bitmapdir = os.path.join(Thuban.__path__[0], os.pardir, "Resources", "Bitmaps")  from Thuban.UI.dock import DockFrame
50  bitmapext = ".xpm"  from Thuban.UI.join import JoinDialog
51    from Thuban.UI.dbdialog import DBFrame, DBDialog, ChooseDBTableDialog
52    import resource
53  class MainWindow(wxFrame):  import Thuban.Model.resource
54    
55    import projdialog
56    
57    
58    class MainWindow(DockFrame):
59    
60        # Some messages that can be subscribed/unsubscribed directly through
61        # the MapCanvas come in fact from other objects. This is a map to
62        # map those messages to the names of the instance variables they
63        # actually come from. This delegation is implemented in the
64        # Subscribe and unsubscribed methods
65        delegated_messages = {LAYER_SELECTED: "canvas",
66                              SHAPES_SELECTED: "canvas",
67                              MAP_REPLACED: "canvas"}
68    
69        # Methods delegated to some instance variables. The delegation is
70        # implemented in the __getattr__ method.
71        delegated_methods = {"SelectLayer": "canvas",
72                             "SelectShapes": "canvas",
73                             "SelectedLayer": "canvas",
74                             "SelectedShapes": "canvas",
75                             }
76    
77      def __init__(self, parent, ID, title, application, interactor,      def __init__(self, parent, ID, title, application, interactor,
78                   initial_message = None, size = wxSize(-1, -1)):                   initial_message = None, size = wxSize(-1, -1)):
79          wxFrame.__init__(self, parent, ID, title, wxDefaultPosition, size)          DockFrame.__init__(self, parent, ID, title, wxDefaultPosition, size)
80            #wxFrame.__init__(self, parent, ID, title, wxDefaultPosition, size)
81    
82          self.application = application          self.application = application
         self.interactor = interactor  
83    
84          self.CreateStatusBar()          self.CreateStatusBar()
85          if initial_message:          if initial_message:
# Line 63  class MainWindow(wxFrame): Line 97  class MainWindow(wxFrame):
97          # call Realize to make sure that the tools appear.          # call Realize to make sure that the tools appear.
98          toolbar.Realize()          toolbar.Realize()
99    
100    
101          # Create the map canvas          # Create the map canvas
102          canvas = view.MapCanvas(self, -1, interactor)          canvas = view.MapCanvas(self, -1)
103          canvas.Subscribe(VIEW_POSITION, self.view_position_changed)          canvas.Subscribe(VIEW_POSITION, self.view_position_changed)
104            canvas.Subscribe(SHAPES_SELECTED, self.identify_view_on_demand)
105          self.canvas = canvas          self.canvas = canvas
106    
107            self.SetMainWindow(self.canvas)
108    
109            self.SetAutoLayout(True)
110    
111          self.init_dialogs()          self.init_dialogs()
112    
113          interactor.Subscribe(SELECTED_SHAPE, self.identify_view_on_demand)          self.ShowLegend()
114    
115          EVT_CLOSE(self, self.OnClose)          EVT_CLOSE(self, self.OnClose)
116    
117        def Subscribe(self, channel, *args):
118            """Subscribe a function to a message channel.
119    
120            If channel is one of the delegated messages call the appropriate
121            object's Subscribe method. Otherwise do nothing.
122            """
123            if channel in self.delegated_messages:
124                object = getattr(self, self.delegated_messages[channel])
125                object.Subscribe(channel, *args)
126            else:
127                print "Trying to subscribe to unsupported channel %s" % channel
128    
129        def Unsubscribe(self, channel, *args):
130            """Unsubscribe a function from a message channel.
131    
132            If channel is one of the delegated messages call the appropriate
133            object's Unsubscribe method. Otherwise do nothing.
134            """
135            if channel in self.delegated_messages:
136                object = getattr(self, self.delegated_messages[channel])
137                object.Unsubscribe(channel, *args)
138    
139        def __getattr__(self, attr):
140            """If attr is one of the delegated methods return that method
141    
142            Otherwise raise AttributeError.
143            """
144            if attr in self.delegated_methods:
145                return getattr(getattr(self, self.delegated_methods[attr]), attr)
146            raise AttributeError(attr)
147    
148      def init_ids(self):      def init_ids(self):
149          """Initialize the ids"""          """Initialize the ids"""
150          self.current_id = 6000          self.current_id = 6000
# Line 112  class MainWindow(wxFrame): Line 183  class MainWindow(wxFrame):
183          return menu_bar          return menu_bar
184    
185      def build_menu(self, menudesc):      def build_menu(self, menudesc):
186          """Build and return a wxMenu from a menudescription"""          """Return a wxMenu built from the menu description menudesc"""
187          wxmenu = wxMenu()          wxmenu = wxMenu()
188          last = None          last = None
189          for item in menudesc.items:          for item in menudesc.items:
             # here the items must all be Menu instances themselves  
190              if item is None:              if item is None:
191                  # a separator. Only add one if the last item was not a                  # a separator. Only add one if the last item was not a
192                  # separator                  # separator
# Line 169  class MainWindow(wxFrame): Line 239  class MainWindow(wxFrame):
239                              command.IsCheckCommand())                              command.IsCheckCommand())
240                  self.bind_command_events(command, ID)                  self.bind_command_events(command, ID)
241              else:              else:
242                  print "Unknown command %s" % name                  print _("Unknown command %s") % name
243    
244      def add_toolbar_command(self, toolbar, name):      def add_toolbar_command(self, toolbar, name):
245          """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 254  class MainWindow(wxFrame):
254              command = registry.Command(name)              command = registry.Command(name)
255              if command is not None:              if command is not None:
256                  ID = self.get_id(name)                  ID = self.get_id(name)
257                  filename = os.path.join(bitmapdir, command.Icon()) + bitmapext                  bitmap = resource.GetBitmapResource(command.Icon(),
258                  bitmap = wxBitmap(filename, wxBITMAP_TYPE_XPM)                                                      wxBITMAP_TYPE_XPM)
259                  toolbar.AddTool(ID, bitmap,                  toolbar.AddTool(ID, bitmap,
260                                  shortHelpString = command.HelpText(),                                  shortHelpString = command.HelpText(),
261                                  isToggle = command.IsCheckCommand())                                  isToggle = command.IsCheckCommand())
262                  self.bind_command_events(command, ID)                  self.bind_command_events(command, ID)
263              else:              else:
264                  print "Unknown command %s" % name                  print _("Unknown command %s") % name
265    
266      def Context(self):      def Context(self):
267          """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 274  class MainWindow(wxFrame):
274              command = registry.Command(name)              command = registry.Command(name)
275              command.Execute(self.Context())              command.Execute(self.Context())
276          else:          else:
277              print "Unknown command ID %d" % event.GetId()              print _("Unknown command ID %d") % event.GetId()
278    
279      def update_command_ui(self, event):      def update_command_ui(self, event):
280          #print "update_command_ui", self.id_to_name[event.GetId()]          #print "update_command_ui", self.id_to_name[event.GetId()]
281          context = self.Context()          context = self.Context()
282          command = registry.Command(self.id_to_name[event.GetId()])          command = registry.Command(self.id_to_name[event.GetId()])
283          if command is not None:          if command is not None:
284              event.Enable(command.Sensitive(context))              sensitive = command.Sensitive(context)
285                event.Enable(sensitive)
286                if command.IsTool() and not sensitive and command.Checked(context):
287                    # When a checked tool command is disabled deselect all
288                    # tools. Otherwise the tool would remain active but it
289                    # might lead to errors if the tools stays active. This
290                    # problem occurred in GREAT-ER and this fixes it, but
291                    # it's not clear to me whether this is really the best
292                    # way to do it (BH, 20021206).
293                    self.canvas.SelectTool(None)
294              event.SetText(command.DynText(context))              event.SetText(command.DynText(context))
295              if command.IsCheckCommand():              if command.IsCheckCommand():
296                  event.Check(command.Checked(context))                      event.Check(command.Checked(context))
297    
298      def RunMessageBox(self, title, text, flags = wxOK | wxICON_INFORMATION):      def RunMessageBox(self, title, text, flags = wxOK | wxICON_INFORMATION):
299          """Run a modal message box with the given text, title and flags          """Run a modal message box with the given text, title and flags
300          and return the result"""          and return the result"""
301          dlg = wxMessageDialog(self, text, title, flags)          dlg = wxMessageDialog(self, text, title, flags)
302            dlg.CenterOnParent()
303          result = dlg.ShowModal()          result = dlg.ShowModal()
304          dlg.Destroy()          dlg.Destroy()
305          return result          return result
# Line 233  class MainWindow(wxFrame): Line 313  class MainWindow(wxFrame):
313    
314      def add_dialog(self, name, dialog):      def add_dialog(self, name, dialog):
315          if self.dialogs.has_key(name):          if self.dialogs.has_key(name):
316              raise RuntimeError("The Dialog named %s is already open" % name)              raise RuntimeError(_("The Dialog named %s is already open") % name)
317          self.dialogs[name] = dialog          self.dialogs[name] = dialog
318    
319      def dialog_open(self, name):      def dialog_open(self, name):
# Line 251  class MainWindow(wxFrame): Line 331  class MainWindow(wxFrame):
331              text = "(%10.10g, %10.10g)" % pos              text = "(%10.10g, %10.10g)" % pos
332          else:          else:
333              text = ""              text = ""
334            self.set_position_text(text)
335    
336        def set_position_text(self, text):
337            """Set the statusbar text showing the current position.
338    
339            By default the text is shown in field 0 of the status bar.
340            Override this method in derived classes to put it into a
341            different field of the statusbar.
342            """
343          self.SetStatusText(text)          self.SetStatusText(text)
344    
345      def save_modified_session(self, can_veto = 1):      def save_modified_session(self, can_veto = 1):
# Line 266  class MainWindow(wxFrame): Line 355  class MainWindow(wxFrame):
355              flags = wxYES_NO | wxICON_QUESTION              flags = wxYES_NO | wxICON_QUESTION
356              if can_veto:              if can_veto:
357                  flags = flags | wxCANCEL                  flags = flags | wxCANCEL
358              result = self.RunMessageBox("Exit",              result = self.RunMessageBox(_("Exit"),
359                                          ("The session has been modified."                                          _("The session has been modified."
360                                           " Do you want to save it?"),                                           " Do you want to save it?"),
361                                          flags)                                          flags)
362              if result == wxID_YES:              if result == wxID_YES:
# Line 277  class MainWindow(wxFrame): Line 366  class MainWindow(wxFrame):
366          return result          return result
367    
368      def NewSession(self):      def NewSession(self):
369          self.save_modified_session()          if self.save_modified_session() != wxID_CANCEL:
370          self.application.SetSession(create_empty_session())              self.application.SetSession(create_empty_session())
371    
372      def OpenSession(self):      def OpenSession(self):
373          self.save_modified_session()          if self.save_modified_session() != wxID_CANCEL:
374          dlg = wxFileDialog(self, "Select a session file", ".", "",              dlg = wxFileDialog(self, _("Open Session"), ".", "",
375                             "*.thuban", wxOPEN)                                 "Thuban Session File (*.thuban)|*.thuban",
376          if dlg.ShowModal() == wxID_OK:                                 wxOPEN)
377              self.application.OpenSession(dlg.GetPath())              if dlg.ShowModal() == wxID_OK:
378          dlg.Destroy()                  self.application.OpenSession(dlg.GetPath(),
379                                                 self.run_db_param_dialog)
380                dlg.Destroy()
381    
382        def run_db_param_dialog(self, parameters, message):
383            dlg = DBDialog(self, _("DB Connection Parameters"), parameters,
384                           message)
385            return dlg.RunDialog()
386    
387      def SaveSession(self):      def SaveSession(self):
388          if self.application.session.filename == None:          if self.application.session.filename == None:
389              self.SaveSessionAs()              self.SaveSessionAs()
390          self.application.SaveSession()          else:
391                self.application.SaveSession()
392    
393      def SaveSessionAs(self):      def SaveSessionAs(self):
394          dlg = wxFileDialog(self, "Enter a filename for session", ".", "",          dlg = wxFileDialog(self, _("Save Session As"), ".", "",
395                             "*.thuban", wxOPEN)                             "Thuban Session File (*.thuban)|*.thuban",
396                               wxSAVE|wxOVERWRITE_PROMPT)
397          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wxID_OK:
398              self.application.session.SetFilename(dlg.GetPath())              self.application.session.SetFilename(dlg.GetPath())
399              self.application.SaveSession()              self.application.SaveSession()
400          dlg.Destroy()          dlg.Destroy()
401    
402      def Exit(self):      def Exit(self):
403          self.Close(false)          self.Close(False)
404    
405      def OnClose(self, event):      def OnClose(self, event):
406          result = self.save_modified_session(can_veto = event.CanVeto())          result = self.save_modified_session(can_veto = event.CanVeto())
# Line 313  class MainWindow(wxFrame): Line 411  class MainWindow(wxFrame):
411              # wx's destroy event, but that isn't implemented for wxGTK              # wx's destroy event, but that isn't implemented for wxGTK
412              # yet.              # yet.
413              self.canvas.Unsubscribe(VIEW_POSITION, self.view_position_changed)              self.canvas.Unsubscribe(VIEW_POSITION, self.view_position_changed)
414                DockFrame.OnClose(self, event)
415                for dlg in self.dialogs.values():
416                    dlg.Destroy()
417                self.canvas.Destroy()
418              self.Destroy()              self.Destroy()
419    
420      def SetMap(self, map):      def SetMap(self, map):
421          self.canvas.SetMap(map)          self.canvas.SetMap(map)
422            self.__SetTitle(map.Title())
423    
424            dialog = self.FindRegisteredDock("legend")
425            if dialog is not None:
426                dialog.GetPanel().SetMap(self.Map())
427    
428      def Map(self):      def Map(self):
429          """Return the map displayed by this mainwindow"""          """Return the map displayed by this mainwindow"""
430    
431          return self.canvas.Map()          return self.canvas.Map()
432    
433      def ShowSessionTree(self):      def ToggleSessionTree(self):
434            """If the session tree is shown close it otherwise create a new tree"""
435          name = "session_tree"          name = "session_tree"
436          dialog = self.get_open_dialog(name)          dialog = self.get_open_dialog(name)
437          if dialog is None:          if dialog is None:
438              dialog = tree.SessionTreeView(self, self.application, name)              dialog = tree.SessionTreeView(self, self.application, name)
439              self.add_dialog(name, dialog)              self.add_dialog(name, dialog)
440              dialog.Show(true)              dialog.Show(True)
441          else:          else:
442              # FIXME: bring dialog to front here              dialog.Close()
443              pass  
444        def SessionTreeShown(self):
445            """Return true iff the session tree is currently shown"""
446            return self.get_open_dialog("session_tree") is not None
447    
448      def About(self):      def About(self):
449          self.RunMessageBox("About",          dlg = About(self)
450                             ("Thuban is a program for\n"          dlg.ShowModal()
451                              "exploring geographic data.\n"          dlg.Destroy()
452                              "Copyright (C) 2001 Intevation GmbH.\n"  
453                              "Thuban is licensed under the GPL"),      def DatabaseManagement(self):
454                             wxOK | wxICON_INFORMATION)          name = "dbmanagement"
455            dialog = self.get_open_dialog(name)
456            if dialog is None:
457                map = self.canvas.Map()
458                dialog = DBFrame(self, name, self.application.Session())
459                self.add_dialog(name, dialog)
460                dialog.Show()
461            dialog.Raise()
462    
463      def AddLayer(self):      def AddLayer(self):
464          dlg = wxFileDialog(self, "Select a data file", ".", "", "*.*",          dlg = wxFileDialog(self, _("Select one or more data files"), ".", "",
465                               _("Shapefiles (*.shp)") + "|*.shp|" +
466                               _("All Files (*.*)") + "|*.*",
467                               wxOPEN | wxMULTIPLE)
468            if dlg.ShowModal() == wxID_OK:
469                filenames = dlg.GetPaths()
470                for filename in filenames:
471                    title = os.path.splitext(os.path.basename(filename))[0]
472                    map = self.canvas.Map()
473                    has_layers = map.HasLayers()
474                    try:
475                        store = self.application.Session().OpenShapefile(filename)
476                    except IOError:
477                        # the layer couldn't be opened
478                        self.RunMessageBox(_("Add Layer"),
479                                           _("Can't open the file '%s'.")%filename)
480                    else:
481                        layer = Layer(title, store)
482                        map.AddLayer(layer)
483                        if not has_layers:
484                            # if we're adding a layer to an empty map, fit the
485                            # new map to the window
486                            self.canvas.FitMapToWindow()
487            dlg.Destroy()
488    
489        def AddRasterLayer(self):
490            dlg = wxFileDialog(self, _("Select an image file"), ".", "", "*.*",
491                             wxOPEN)                             wxOPEN)
492          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wxID_OK:
493              filename = dlg.GetPath()              filename = dlg.GetPath()
494              title = os.path.splitext(os.path.basename(filename))[0]              title = os.path.splitext(os.path.basename(filename))[0]
             layer = Layer(title, filename)  
495              map = self.canvas.Map()              map = self.canvas.Map()
496              has_layers = map.HasLayers()              has_layers = map.HasLayers()
497              try:              try:
498                  map.AddLayer(layer)                  layer = RasterLayer(title, filename)
499              except IOError:              except IOError:
500                  # the layer couldn't be opened                  # the layer couldn't be opened
501                  self.RunMessageBox("Add Layer",                  self.RunMessageBox(_("Add Image Layer"),
502                                     "Can't open the file '%s'." % filename)                                     _("Can't open the file '%s'.") % filename)
503              else:              else:
504                    map.AddLayer(layer)
505                  if not has_layers:                  if not has_layers:
506                      # if we're adding a layer to an empty map, for the                      # if we're adding a layer to an empty map, fit the
507                      # new map to the window                      # new map to the window
508                      self.canvas.FitMapToWindow()                      self.canvas.FitMapToWindow()
509          dlg.Destroy()          dlg.Destroy()
510    
511        def AddDBLayer(self):
512            """Add a layer read from a database"""
513            session = self.application.Session()
514            dlg = ChooseDBTableDialog(self.application.Session(), self,-1, "")
515    
516            if dlg.ShowModal() == wxID_OK:
517                dbconn, dbtable = dlg.GetTable()
518                try:
519                    title = str(dbtable)
520    
521                    # Chose the correct Interface for the database type
522                    store = PostGISShapeStore(dbconn, dbtable)
523                    session.AddShapeStore(store)
524                    layer = Layer(title, store)
525                except:
526                    # Some error occured while initializing the layer
527                    self.RunMessageBox(_("Add Layer from database"),
528                                       _("Can't open the database table '%s'")
529                                       % dbtable)
530    
531                map = self.canvas.Map()
532    
533                has_layers = map.HasLayers()
534                map.AddLayer(layer)
535                if not has_layers:
536                    self.canvas.FitMapToWindow()
537    
538            dlg.Destroy()
539    
540      def RemoveLayer(self):      def RemoveLayer(self):
541          layer = self.current_layer()          layer = self.current_layer()
542          if layer is not None:          if layer is not None:
# Line 371  class MainWindow(wxFrame): Line 545  class MainWindow(wxFrame):
545      def CanRemoveLayer(self):      def CanRemoveLayer(self):
546          """Return true if the currently selected layer can be deleted.          """Return true if the currently selected layer can be deleted.
547    
548          If no layer is selected return false.          If no layer is selected return False.
549    
550          The return value of this method determines whether the remove          The return value of this method determines whether the remove
551          layer command is sensitive in menu.          layer command is sensitive in menu.
# Line 379  class MainWindow(wxFrame): Line 553  class MainWindow(wxFrame):
553          layer = self.current_layer()          layer = self.current_layer()
554          if layer is not None:          if layer is not None:
555              return self.canvas.Map().CanRemoveLayer(layer)              return self.canvas.Map().CanRemoveLayer(layer)
556          return 0          return False
557    
558      def RaiseLayer(self):      def RaiseLayer(self):
559          layer = self.current_layer()          layer = self.current_layer()
# Line 396  class MainWindow(wxFrame): Line 570  class MainWindow(wxFrame):
570    
571          If no layer is selected, return None          If no layer is selected, return None
572          """          """
573          return self.interactor.SelectedLayer()          return self.canvas.SelectedLayer()
574    
575      def has_selected_layer(self):      def has_selected_layer(self):
576          """Return true if a layer is currently selected"""          """Return true if a layer is currently selected"""
577          return self.interactor.HasSelectedLayer()          return self.canvas.HasSelectedLayer()
   
     def choose_color(self):  
         """Run the color selection dialog and return the selected color.  
578    
579          If the user cancels, return None.      def has_selected_shapes(self):
580          """          """Return true if a shape is currently selected"""
581          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  
582    
583      def LayerFillColor(self):      def HideLayer(self):
584          layer = self.current_layer()          layer = self.current_layer()
585          if layer is not None:          if layer is not None:
586              color = self.choose_color()              layer.SetVisible(0)
             if color is not None:  
                 layer.SetFill(color)  
587    
588      def LayerTransparentFill(self):      def ShowLayer(self):
589          layer = self.current_layer()          layer = self.current_layer()
590          if layer is not None:          if layer is not None:
591              layer.SetFill(None)              layer.SetVisible(1)
592    
593      def LayerOutlineColor(self):      def DuplicateLayer(self):
594            """Ceate a new layer above the selected layer with the same shapestore
595            """
596          layer = self.current_layer()          layer = self.current_layer()
597          if layer is not None:          if layer is not None and hasattr(layer, "ShapeStore"):
598              color = self.choose_color()              new_layer = Layer(_("Copy of `%s'") % layer.Title(),
599              if color is not None:                                layer.ShapeStore(),
600                  layer.SetStroke(color)                                projection = layer.GetProjection())
601                new_classification = copy.deepcopy(layer.GetClassification())
602                new_layer.SetClassification(new_classification)
603                self.Map().AddLayer(new_layer)
604    
605      def LayerNoOutline(self):      def CanDuplicateLayer(self):
606            """Return whether the DuplicateLayer method can create a duplicate"""
607          layer = self.current_layer()          layer = self.current_layer()
608          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)  
609    
610      def LayerShowTable(self):      def LayerShowTable(self):
611          layer = self.current_layer()          layer = self.current_layer()
612          if layer is not None:          if layer is not None:
613              table = layer.table              table = layer.ShapeStore().Table()
614              name = "table_view" + str(id(table))              name = "table_view" + str(id(table))
615              dialog = self.get_open_dialog(name)              dialog = self.get_open_dialog(name)
616              if dialog is None:              if dialog is None:
617                  dialog = tableview.LayerTableFrame(self, self.interactor, name,                  dialog = tableview.LayerTableFrame(self, name,
618                                                     "Table: %s" % layer.Title(),                                           _("Layer Table: %s") % layer.Title(),
619                                                     layer, table)                                           layer, table)
620                  self.add_dialog(name, dialog)                  self.add_dialog(name, dialog)
621                  dialog.Show(true)                  dialog.Show(True)
622              else:              else:
623                  # FIXME: bring dialog to front here                  # FIXME: bring dialog to front here
624                  pass                  pass
625    
626      def Projection(self):      def MapProjection(self):
627          map = self.canvas.Map()  
628          proj = map.projection          name = "map_projection"
629          if proj is None:          dialog = self.get_open_dialog(name)
630              proj4Dlg = proj4dialog.Proj4Dialog(NULL, None, map.BoundingBox())  
631          else:          if dialog is None:
632              proj4Dlg = proj4dialog.Proj4Dialog(NULL, map.projection.params,              map = self.canvas.Map()
633                                                 map.BoundingBox())              dialog = projdialog.ProjFrame(self, name,
634          if proj4Dlg.ShowModal() == wxID_OK:                       _("Map Projection: %s") % map.Title(), map)
635              params = proj4Dlg.GetParams()              self.add_dialog(name, dialog)
636              if params is not None:              dialog.Show()
637                  proj = Projection(params)          dialog.Raise()
638    
639        def LayerProjection(self):
640    
641            layer = self.current_layer()
642    
643            name = "layer_projection" + str(id(layer))
644            dialog = self.get_open_dialog(name)
645    
646            if dialog is None:
647                map = self.canvas.Map()
648                dialog = projdialog.ProjFrame(self, name,
649                         _("Layer Projection: %s") % layer.Title(), layer)
650                self.add_dialog(name, dialog)
651                dialog.Show()
652            dialog.Raise()
653    
654        def LayerEditProperties(self):
655    
656            #
657            # the menu option for this should only be available if there
658            # is a current layer, so we don't need to check if the
659            # current layer is None
660            #
661    
662            layer = self.current_layer()
663            self.OpenLayerProperties(layer)
664    
665        def OpenLayerProperties(self, layer, group = None):
666            name = "layer_properties" + str(id(layer))
667            dialog = self.get_open_dialog(name)
668    
669            if dialog is None:
670                dialog = Classifier(self, name, self.Map(), layer, group)
671                self.add_dialog(name, dialog)
672                dialog.Show()
673            dialog.Raise()
674    
675        def LayerJoinTable(self):
676            layer = self.canvas.SelectedLayer()
677            if layer is not None:
678                dlg = JoinDialog(self, _("Join Layer with Table"),
679                                 self.application.session,
680                                 layer = layer)
681                dlg.ShowModal()
682    
683        def LayerUnjoinTable(self):
684            layer = self.canvas.SelectedLayer()
685            if layer is not None:
686                orig_store = layer.ShapeStore().OrigShapeStore()
687                if orig_store:
688                    layer.SetShapeStore(orig_store)
689    
690        def ShowLegend(self):
691            if not self.LegendShown():
692                self.ToggleLegend()
693    
694        def ToggleLegend(self):
695            """Show the legend if it's not shown otherwise hide it again"""
696            name = "legend"
697            dialog = self.FindRegisteredDock(name)
698    
699            if dialog is None:
700                dialog = self.CreateDock(name, -1, _("Legend"), wxLAYOUT_LEFT)
701                legend.LegendPanel(dialog, None, self)
702                dialog.Dock()
703                dialog.GetPanel().SetMap(self.Map())
704                dialog.Show()
705            else:
706                dialog.Show(not dialog.IsShown())
707    
708        def LegendShown(self):
709            """Return true iff the legend is currently open"""
710            dialog = self.FindRegisteredDock("legend")
711            return dialog is not None and dialog.IsShown()
712    
713        def TableOpen(self):
714            dlg = wxFileDialog(self, _("Open Table"), ".", "",
715                               _("DBF Files (*.dbf)") + "|*.dbf|" +
716                               #_("CSV Files (*.csv)") + "|*.csv|" +
717                               _("All Files (*.*)") + "|*.*",
718                               wxOPEN)
719            if dlg.ShowModal() == wxID_OK:
720                filename = dlg.GetPath()
721                dlg.Destroy()
722                try:
723                    table = self.application.session.OpenTableFile(filename)
724                except IOError:
725                    # the layer couldn't be opened
726                    self.RunMessageBox(_("Open Table"),
727                                       _("Can't open the file '%s'.") % filename)
728              else:              else:
729                  proj = None                  self.ShowTableView(table)
730              map.SetProjection(proj)  
731          proj4Dlg.Destroy()      def TableClose(self):
732            tables = self.application.session.UnreferencedTables()
733    
734            lst = [(t.Title(), t) for t in tables]
735            lst.sort()
736            titles = [i[0] for i in lst]
737            dlg = wxMultipleChoiceDialog(self, _("Pick the tables to close:"),
738                                         _("Close Table"), titles,
739                                         size = (400, 300),
740                                         style = wxDEFAULT_DIALOG_STYLE |
741                                                 wxRESIZE_BORDER)
742            if dlg.ShowModal() == wxID_OK:
743                for i in dlg.GetValue():
744                    self.application.session.RemoveTable(lst[i][1])
745    
746    
747        def TableShow(self):
748            """Offer a multi-selection dialog for tables to be displayed
749    
750            The windows for the selected tables are opened or brought to
751            the front.
752            """
753            tables = self.application.session.Tables()
754    
755            lst = [(t.Title(), t) for t in tables]
756            lst.sort()
757            titles = [i[0] for i in lst]
758            dlg = wxMultipleChoiceDialog(self, _("Pick the table to show:"),
759                                         _("Show Table"), titles,
760                                         size = (400,300),
761                                         style = wxDEFAULT_DIALOG_STYLE |
762                                                 wxRESIZE_BORDER)
763            if (dlg.ShowModal() == wxID_OK):
764                for i in dlg.GetValue():
765                    # XXX: if the table belongs to a layer, open a
766                    # LayerTableFrame instead of QueryTableFrame
767                    self.ShowTableView(lst[i][1])
768    
769        def TableJoin(self):
770            dlg = JoinDialog(self, _("Join Tables"), self.application.session)
771            dlg.ShowModal()
772    
773        def ShowTableView(self, table):
774            """Open a table view for the table and optionally"""
775            name = "table_view%d" % id(table)
776            dialog = self.get_open_dialog(name)
777            if dialog is None:
778                dialog = tableview.QueryTableFrame(self, name,
779                                                   _("Table: %s") % table.Title(),
780                                                   table)
781                self.add_dialog(name, dialog)
782                dialog.Show(True)
783            dialog.Raise()
784    
785        def TableRename(self):
786            """Let the user rename a table"""
787    
788            # First, let the user select a table
789            tables = self.application.session.Tables()
790            lst = [(t.Title(), t) for t in tables]
791            lst.sort()
792            titles = [i[0] for i in lst]
793            dlg = wxMultipleChoiceDialog(self, _("Pick the table to rename:"),
794                                         _("Rename Table"), titles,
795                                         size = (400,300),
796                                         style = wxDEFAULT_DIALOG_STYLE |
797                                                 wxRESIZE_BORDER)
798            if (dlg.ShowModal() == wxID_OK):
799                to_rename = [lst[i][1] for i in dlg.GetValue()]
800                dlg.Destroy()
801            else:
802                to_rename = []
803    
804            # Second, let the user rename the layers
805            for table in to_rename:
806                dlg = wxTextEntryDialog(self, "Table Title: ", "Rename Table",
807                                        table.Title())
808                try:
809                    if dlg.ShowModal() == wxID_OK:
810                        title = dlg.GetValue()
811                        if title != "":
812                            table.SetTitle(title)
813    
814                            # Make sure the session is marked as modified.
815                            # FIXME: This should be handled automatically,
816                            # but that requires more changes to the tables
817                            # than I have time for currently.
818                            self.application.session.changed()
819                finally:
820                    dlg.Destroy()
821    
822    
823      def ZoomInTool(self):      def ZoomInTool(self):
824          self.canvas.ZoomInTool()          self.canvas.ZoomInTool()
# Line 504  class MainWindow(wxFrame): Line 839  class MainWindow(wxFrame):
839      def FullExtent(self):      def FullExtent(self):
840          self.canvas.FitMapToWindow()          self.canvas.FitMapToWindow()
841    
842        def FullLayerExtent(self):
843            self.canvas.FitLayerToWindow(self.current_layer())
844    
845        def FullSelectionExtent(self):
846            self.canvas.FitSelectedToWindow()
847    
848        def ExportMap(self):
849            self.canvas.Export()
850    
851      def PrintMap(self):      def PrintMap(self):
852          self.canvas.Print()          self.canvas.Print()
853    
854      def identify_view_on_demand(self, layer, shape):      def RenameMap(self):
855            dlg = wxTextEntryDialog(self, "Map Title: ", "Rename Map",
856                                    self.Map().Title())
857            if dlg.ShowModal() == wxID_OK:
858                title = dlg.GetValue()
859                if title != "":
860                    self.Map().SetTitle(title)
861                    self.__SetTitle(title)
862    
863            dlg.Destroy()
864    
865        def RenameLayer(self):
866            """Let the user rename the currently selected layer"""
867            layer = self.current_layer()
868            if layer is not None:
869                dlg = wxTextEntryDialog(self, "Layer Title: ", "Rename Layer",
870                                        layer.Title())
871                try:
872                    if dlg.ShowModal() == wxID_OK:
873                        title = dlg.GetValue()
874                        if title != "":
875                            layer.SetTitle(title)
876                finally:
877                    dlg.Destroy()
878    
879        def identify_view_on_demand(self, layer, shapes):
880            """Subscribed to the canvas' SHAPES_SELECTED message
881    
882            If the current tool is the identify tool, at least one shape is
883            selected and the identify dialog is not shown, show the dialog.
884            """
885            # If the selection has become empty we don't need to do
886            # anything. Otherwise it could happen that the dialog was popped
887            # up when the selection became empty, e.g. when a new selection
888            # is opened while the identify tool is active and dialog had
889            # been closed
890            if not shapes:
891                return
892    
893          name = "identify_view"          name = "identify_view"
894          if self.canvas.CurrentTool() == "IdentifyTool":          if self.canvas.CurrentTool() == "IdentifyTool":
895              if not self.dialog_open(name):              if not self.dialog_open(name):
896                  dialog = identifyview.IdentifyView(self, self.interactor, name)                  dialog = identifyview.IdentifyView(self, name)
897                  self.add_dialog(name, dialog)                  self.add_dialog(name, dialog)
898                  dialog.Show(true)                  dialog.Show(True)
899              else:              else:
900                  # FIXME: bring dialog to front?                  # FIXME: bring dialog to front?
901                  pass                  pass
902    
903        def __SetTitle(self, title):
904            self.SetTitle("Thuban - " + title)
905    
906  #  #
907  # Define all the commands available in the main window  # Define all the commands available in the main window
908  #  #
# Line 529  def call_method(context, methodname, *ar Line 914  def call_method(context, methodname, *ar
914      apply(getattr(context.mainwindow, methodname), args)      apply(getattr(context.mainwindow, methodname), args)
915    
916  def _method_command(name, title, method, helptext = "",  def _method_command(name, title, method, helptext = "",
917                      icon = "", sensitive = None):                      icon = "", sensitive = None, checked = None):
918      """Add a command implemented by a method of the mainwindow object"""      """Add a command implemented by a method of the mainwindow object"""
919      registry.Add(Command(name, title, call_method, args=(method,),      registry.Add(Command(name, title, call_method, args=(method,),
920                           helptext = helptext, icon = icon,                           helptext = helptext, icon = icon,
921                           sensitive = sensitive))                           sensitive = sensitive, checked = checked))
922    
923  def make_check_current_tool(toolname):  def make_check_current_tool(toolname):
924      """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 934  def make_check_current_tool(toolname):
934  def _tool_command(name, title, method, toolname, helptext = "",  def _tool_command(name, title, method, toolname, helptext = "",
935                    icon = "", sensitive = None):                    icon = "", sensitive = None):
936      """Add a tool command"""      """Add a tool command"""
937      registry.Add(Command(name, title, call_method, args=(method,),      registry.Add(ToolCommand(name, title, call_method, args=(method,),
938                           helptext = helptext, icon = icon,                               helptext = helptext, icon = icon,
939                           checked = make_check_current_tool(toolname),                               checked = make_check_current_tool(toolname),
940                           sensitive = sensitive))                               sensitive = sensitive))
941    
942  def _has_selected_layer(context):  def _has_selected_layer(context):
943      """Return true if a layer is selected in the context"""      """Return true if a layer is selected in the context"""
944      return context.mainwindow.has_selected_layer()      return context.mainwindow.has_selected_layer()
945    
946    def _has_selected_shapes(context):
947        """Return true if a layer is selected in the context"""
948        return context.mainwindow.has_selected_shapes()
949    
950  def _can_remove_layer(context):  def _can_remove_layer(context):
951      return context.mainwindow.CanRemoveLayer()      return context.mainwindow.CanRemoveLayer()
952    
953  def _has_tree_window_shown(context):  def _has_tree_window_shown(context):
954      """Return true if the tree window is shown"""      """Return true if the tree window is shown"""
955      return context.mainwindow.get_open_dialog("session_tree") is None      return context.mainwindow.SessionTreeShown()
956    
957  def _has_visible_map(context):  def _has_visible_map(context):
958      """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 965  def _has_visible_map(context):
965                  return 1                  return 1
966      return 0      return 0
967    
968    def _has_legend_shown(context):
969        """Return true if the legend window is shown"""
970        return context.mainwindow.LegendShown()
971    
972    def _has_gdal_support(context):
973        """Return True if the GDAL is available"""
974        return Thuban.Model.resource.has_gdal_support()
975    
976    def _has_dbconnections(context):
977        """Return whether the the session has database connections"""
978        return context.session.HasDBConnections()
979    
980    def _has_postgis_support(context):
981        return has_postgis_support()
982    
983    
984  # File menu  # File menu
985  _method_command("new_session", "&New Session", "NewSession")  _method_command("new_session", _("&New Session"), "NewSession",
986  _method_command("open_session", "&Open Session", "OpenSession")                  helptext = _("Start a new session"))
987  _method_command("save_session", "&Save Session", "SaveSession")  _method_command("open_session", _("&Open Session..."), "OpenSession",
988  _method_command("save_session_as", "Save Session &As", "SaveSessionAs")                  helptext = _("Open a session file"))
989  _method_command("show_session_tree", "Show Session &Tree", "ShowSessionTree",  _method_command("save_session", _("&Save Session"), "SaveSession",
990                  sensitive = _has_tree_window_shown)                  helptext =_("Save this session to the file it was opened from"))
991  _method_command("exit", "&Exit", "Exit")  _method_command("save_session_as", _("Save Session &As..."), "SaveSessionAs",
992                    helptext = _("Save this session to a new file"))
993    _method_command("toggle_session_tree", _("Session &Tree"), "ToggleSessionTree",
994                    checked = _has_tree_window_shown,
995                    helptext = _("Toggle on/off the session tree analysis window"))
996    _method_command("toggle_legend", _("Legend"), "ToggleLegend",
997                    checked = _has_legend_shown,
998                    helptext = _("Toggle Legend on/off"))
999    _method_command("database_management", _("&Database Connections..."),
1000                    "DatabaseManagement",
1001                    sensitive = _has_postgis_support)
1002    _method_command("exit", _("E&xit"), "Exit",
1003                    helptext = _("Finish working with Thuban"))
1004    
1005  # Help menu  # Help menu
1006  _method_command("help_about", "&About", "About")  _method_command("help_about", _("&About..."), "About",
1007                    helptext = _("Info about Thuban authors, version and modules"))
1008    
1009    
1010  # Map menu  # Map menu
1011  _method_command("map_projection", "Pro&jection", "Projection")  _method_command("map_projection", _("Pro&jection..."), "MapProjection",
1012                    helptext = _("Set or change the map projection"))
1013    
1014  _tool_command("map_zoom_in_tool", "&Zoom in", "ZoomInTool", "ZoomInTool",  _tool_command("map_zoom_in_tool", _("&Zoom in"), "ZoomInTool", "ZoomInTool",
1015                helptext = "Switch to map-mode 'zoom-in'", icon = "zoom_in",                helptext = _("Switch to map-mode 'zoom-in'"), icon = "zoom_in",
1016                sensitive = _has_visible_map)                sensitive = _has_visible_map)
1017  _tool_command("map_zoom_out_tool", "Zoom &out", "ZoomOutTool", "ZoomOutTool",  _tool_command("map_zoom_out_tool", _("Zoom &out"), "ZoomOutTool", "ZoomOutTool",
1018                helptext = "Switch to map-mode 'zoom-out'", icon = "zoom_out",                helptext = _("Switch to map-mode 'zoom-out'"), icon = "zoom_out",
1019                sensitive = _has_visible_map)                sensitive = _has_visible_map)
1020  _tool_command("map_pan_tool", "&Pan", "PanTool", "PanTool",  _tool_command("map_pan_tool", _("&Pan"), "PanTool", "PanTool",
1021                helptext = "Switch to map-mode 'pan'", icon = "pan",                helptext = _("Switch to map-mode 'pan'"), icon = "pan",
1022                sensitive = _has_visible_map)                sensitive = _has_visible_map)
1023  _tool_command("map_identify_tool", "&Identify", "IdentifyTool", "IdentifyTool",  _tool_command("map_identify_tool", _("&Identify"), "IdentifyTool",
1024                helptext = "Switch to map-mode 'identify'", icon = "identify",                "IdentifyTool",
1025                  helptext = _("Switch to map-mode 'identify'"), icon = "identify",
1026                sensitive = _has_visible_map)                sensitive = _has_visible_map)
1027  _tool_command("map_label_tool", "&Label", "LabelTool", "LabelTool",  _tool_command("map_label_tool", _("&Label"), "LabelTool", "LabelTool",
1028                helptext = "Add/Remove labels", icon = "label",                helptext = _("Add/Remove labels"), icon = "label",
1029                sensitive = _has_visible_map)                sensitive = _has_visible_map)
1030  _method_command("map_full_extent", "&Full extent", "FullExtent",  _method_command("map_full_extent", _("&Full extent"), "FullExtent",
1031                 helptext = "Full Extent", icon = "fullextent",                 helptext = _("Zoom to the full map extent"), icon = "fullextent",
1032                sensitive = _has_visible_map)                sensitive = _has_visible_map)
1033  _method_command("map_print", "Prin&t", "PrintMap", helptext = "Print the map")  _method_command("layer_full_extent", _("&Full layer extent"), "FullLayerExtent",
1034                    helptext = _("Zoom to the full layer extent"),
1035                    icon = "fulllayerextent", sensitive = _has_selected_layer)
1036    _method_command("selected_full_extent", _("&Full selection extent"),
1037                    "FullSelectionExtent",
1038                    helptext = _("Zoom to the full selection extent"),
1039                    icon = "fullselextent", sensitive = _has_selected_shapes)
1040    _method_command("map_export", _("E&xport"), "ExportMap",
1041                    helptext = _("Export the map to file"))
1042    _method_command("map_print", _("Prin&t"), "PrintMap",
1043                    helptext = _("Print the map"))
1044    _method_command("map_rename", _("&Rename..."), "RenameMap",
1045                    helptext = _("Rename the map"))
1046    _method_command("layer_add", _("&Add Layer..."), "AddLayer",
1047                    helptext = _("Add a new layer to the map"))
1048    _method_command("rasterlayer_add", _("&Add Image Layer..."), "AddRasterLayer",
1049                    helptext = _("Add a new image layer to the map"),
1050                    sensitive = _has_gdal_support)
1051    _method_command("layer_add_db", _("Add &Database Layer..."), "AddDBLayer",
1052                    helptext = _("Add a new database layer to active map"),
1053                    sensitive = _has_dbconnections)
1054    _method_command("layer_remove", _("&Remove Layer"), "RemoveLayer",
1055                    helptext = _("Remove selected layer"),
1056                    sensitive = _can_remove_layer)
1057    
1058  # Layer menu  # Layer menu
1059  _method_command("layer_add", "&Add Layer", "AddLayer",  _method_command("layer_projection", _("Pro&jection..."), "LayerProjection",
1060                  helptext = "Add a new layer to active map")                  sensitive = _has_selected_layer,
1061  _method_command("layer_remove", "&Remove Layer", "RemoveLayer",                  helptext = _("Specify projection for selected layer"))
1062                  helptext = "Remove selected layer(s)",  _method_command("layer_duplicate", _("&Duplicate"), "DuplicateLayer",
1063                  sensitive = _can_remove_layer)                  helptext = _("Duplicate selected layer"),
1064  _method_command("layer_fill_color", "&Fill Color", "LayerFillColor",            sensitive = lambda context: context.mainwindow.CanDuplicateLayer())
1065                  helptext = "Set the fill color of selected layer(s)",  _method_command("layer_rename", _("Re&name ..."), "RenameLayer",
1066                  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)",  
1067                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1068  _method_command("layer_no_outline", "&No Outline", "LayerNoOutline",  _method_command("layer_raise", _("&Raise"), "RaiseLayer",
1069                  helptext = "Do not draw the outline of the selected layer(s)",                  helptext = _("Raise selected layer"),
1070                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1071  _method_command("layer_raise", "&Raise", "RaiseLayer",  _method_command("layer_lower", _("&Lower"), "LowerLayer",
1072                  helptext = "Raise selected layer(s)",                  helptext = _("Lower selected layer"),
1073                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1074  _method_command("layer_lower", "&Lower", "LowerLayer",  _method_command("layer_show", _("&Show"), "ShowLayer",
1075                  helptext = "Lower selected layer(s)",                  helptext = _("Make selected layer visible"),
1076                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1077  _method_command("layer_show", "&Show", "ShowLayer",  _method_command("layer_hide", _("&Hide"), "HideLayer",
1078                  helptext = "Make selected layer(s) visible",                  helptext = _("Make selected layer unvisible"),
1079                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1080  _method_command("layer_hide", "&Hide", "HideLayer",  _method_command("layer_show_table", _("Show Ta&ble"), "LayerShowTable",
1081                  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",  
1082                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1083    _method_command("layer_properties", _("&Properties..."), "LayerEditProperties",
1084                    sensitive = _has_selected_layer,
1085                    helptext = _("Edit the properties of the selected layer"))
1086    _method_command("layer_jointable", _("&Join Table..."), "LayerJoinTable",
1087                    sensitive = _has_selected_layer,
1088                    helptext = _("Join and attach a table to the selected layer"))
1089    
1090    def _can_unjoin(context):
1091        """Return whether the Layer/Unjoin command can be executed.
1092    
1093  # the menu structure      This is the case if a layer is selected and that layer has a
1094  main_menu = Menu("<main>", "<main>",      shapestore that has an original shapestore.
1095                   [Menu("file", "&File",      """
1096                         ["new_session", "open_session", None,      layer = context.mainwindow.SelectedLayer()
1097                          "save_session", "save_session_as", None,      if layer is None:
1098                          "show_session_tree", None,          return 0
1099                          "exit"]),      getstore = getattr(layer, "ShapeStore", None)
1100                    Menu("map", "&Map",      if getstore is not None:
1101                         ["layer_add", "layer_remove",          return getstore().OrigShapeStore() is not None
1102        else:
1103            return 0
1104    _method_command("layer_unjointable", _("&Unjoin Table..."), "LayerUnjoinTable",
1105                    sensitive = _can_unjoin,
1106                    helptext = _("Undo the last join operation"))
1107    
1108    
1109    def _has_tables(context):
1110        return bool(context.session.Tables())
1111    
1112    # Table menu
1113    _method_command("table_open", _("&Open..."), "TableOpen",
1114                    helptext = _("Open a DBF-table from a file"))
1115    _method_command("table_close", _("&Close..."), "TableClose",
1116           sensitive = lambda context: bool(context.session.UnreferencedTables()),
1117                    helptext = _("Close one or more tables from a list"))
1118    _method_command("table_rename", _("&Rename..."), "TableRename",
1119                    sensitive = _has_tables,
1120                    helptext = _("Rename one or more tables"))
1121    _method_command("table_show", _("&Show..."), "TableShow",
1122                    sensitive = _has_tables,
1123                    helptext = _("Show one or more tables in a dialog"))
1124    _method_command("table_join", _("&Join..."), "TableJoin",
1125                    sensitive = _has_tables,
1126                    helptext = _("Join two tables creating a new one"))
1127    
1128    #  Export only under Windows ...
1129    map_menu = ["layer_add", "layer_add_db", "rasterlayer_add", "layer_remove",
1130                          None,                          None,
1131                            "map_rename",
1132                          "map_projection",                          "map_projection",
1133                          None,                          None,
1134                          "map_zoom_in_tool", "map_zoom_out_tool",                          "map_zoom_in_tool", "map_zoom_out_tool",
1135                          "map_pan_tool", "map_identify_tool", "map_label_tool",                          "map_pan_tool",
                         None,  
1136                          "map_full_extent",                          "map_full_extent",
1137                            "layer_full_extent",
1138                            "selected_full_extent",
1139                          None,                          None,
1140                          "map_print"]),                          "map_identify_tool", "map_label_tool",
1141                    Menu("layer", "&Layer",                          None,
1142                         ["layer_fill_color", "layer_transparent_fill",                          "toggle_legend",
1143                          "layer_outline_color", "layer_no_outline",                          None]
1144    if wxPlatform == '__WXMSW__':
1145        map_menu.append("map_export")
1146    map_menu.append("map_print")
1147    
1148    # the menu structure
1149    main_menu = Menu("<main>", "<main>",
1150                     [Menu("file", _("&File"),
1151                           ["new_session", "open_session", None,
1152                            "save_session", "save_session_as", None,
1153                            "database_management", None,
1154                            "toggle_session_tree", None,
1155                            "exit"]),
1156                      Menu("map", _("&Map"), map_menu),
1157                      Menu("layer", _("&Layer"),
1158                           ["layer_rename", "layer_duplicate",
1159                          None,                          None,
1160                          "layer_raise", "layer_lower",                          "layer_raise", "layer_lower",
1161                          None,                          None,
1162                          "layer_show", "layer_hide",                          "layer_show", "layer_hide",
1163                          None,                          None,
1164                          "layer_show_table"]),                          "layer_projection",
1165                    Menu("help", "&Help",                          None,
1166                            "layer_show_table",
1167                            "layer_jointable",
1168                            "layer_unjointable",
1169                            None,
1170                            "layer_properties"]),
1171                      Menu("table", _("&Table"),
1172                           ["table_open", "table_close", "table_rename",
1173                           None,
1174                           "table_show",
1175                           None,
1176                           "table_join"]),
1177                      Menu("help", _("&Help"),
1178                         ["help_about"])])                         ["help_about"])])
1179    
1180  # the main toolbar  # the main toolbar
1181    
1182  main_toolbar = Menu("<toolbar>", "<toolbar>",  main_toolbar = Menu("<toolbar>", "<toolbar>",
1183                      ["map_zoom_in_tool", "map_zoom_out_tool", "map_pan_tool",                      ["map_zoom_in_tool", "map_zoom_out_tool", "map_pan_tool",
1184                       "map_identify_tool", "map_label_tool", "map_full_extent"])                       "map_full_extent",
1185                         "layer_full_extent",
1186                         "selected_full_extent",
1187                         None,
1188                         "map_identify_tool", "map_label_tool"])
1189    
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