/[thuban]/branches/WIP-pyshapelib-bramz/Thuban/UI/mainwindow.py
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revision 357 by bh, Mon Dec 9 10:32:27 2002 UTC revision 2365 by joey, Fri Oct 1 18:22:32 2004 UTC
# Line 1  Line 1 
1  # Copyright (C) 2001, 2002 by Intevation GmbH  # Copyright (C) 2001, 2002, 2003, 2004 by Intevation GmbH
2  # Authors:  # Authors:
3  # Jan-Oliver Wagner <[email protected]>  # Jan-Oliver Wagner <[email protected]>
4  # Bernhard Herzog <[email protected]>  # Bernhard Herzog <[email protected]>
5    # Frank Koormann <[email protected]>
6  #  #
7  # This program is free software under the GPL (>=v2)  # This program is free software under the GPL (>=v2)
8  # Read the file COPYING coming with Thuban for details.  # Read the file COPYING coming with Thuban for details.
# Line 11  The main window Line 12  The main window
12  """  """
13    
14  __version__ = "$Revision$"  __version__ = "$Revision$"
15    # $Source$
16    # $Id$
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.messages import TITLE_CHANGED
27  from Thuban.Model.session import create_empty_session  from Thuban.Model.session import create_empty_session
28  from Thuban.Model.layer import Layer  from Thuban.Model.layer import Layer, RasterLayer
29  from Thuban.Model.color import Color  from Thuban.Model.postgisdb import PostGISShapeStore, has_postgis_support
30  from Thuban.Model.proj import Projection  # XXX: replace this by
31    # from wxPython.lib.dialogs import wxMultipleChoiceDialog
32    # when Thuban does not support wxPython 2.4.0 any more.
33    from Thuban.UI.multiplechoicedialog import wxMultipleChoiceDialog
34    
35  import view  import view
36  import tree  import tree
 import proj4dialog  
37  import tableview, identifyview  import tableview, identifyview
38    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, ToolCommand  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    from Thuban.Lib.classmapper import ClassMapper
56    
57    layer_properties_dialogs = ClassMapper()
58    
59    class MainWindow(DockFrame):
60    
61        # Some messages that can be subscribed/unsubscribed directly through
62        # the MapCanvas come in fact from other objects. This is a map to
63        # map those messages to the names of the instance variables they
64        # actually come from. This delegation is implemented in the
65        # Subscribe and unsubscribed methods
66        delegated_messages = {LAYER_SELECTED: "canvas",
67                              SHAPES_SELECTED: "canvas",
68                              MAP_REPLACED: "canvas"}
69    
70        # Methods delegated to some instance variables. The delegation is
71        # implemented in the __getattr__ method.
72        delegated_methods = {"SelectLayer": "canvas",
73                             "SelectShapes": "canvas",
74                             "SelectedLayer": "canvas",
75                             "SelectedShapes": "canvas",
76                             }
77    
78      def __init__(self, parent, ID, title, application, interactor,      def __init__(self, parent, ID, title, application, interactor,
79                   initial_message = None, size = wxSize(-1, -1)):                   initial_message = None, size = wxSize(-1, -1)):
80          wxFrame.__init__(self, parent, ID, title, wxDefaultPosition, size)          DockFrame.__init__(self, parent, ID, title, wxDefaultPosition, size)
81            #wxFrame.__init__(self, parent, ID, title, wxDefaultPosition, size)
82    
83          self.application = application          self.application = application
         self.interactor = interactor  
84    
85          self.CreateStatusBar()          self.CreateStatusBar()
86          if initial_message:          if initial_message:
# Line 63  class MainWindow(wxFrame): Line 98  class MainWindow(wxFrame):
98          # call Realize to make sure that the tools appear.          # call Realize to make sure that the tools appear.
99          toolbar.Realize()          toolbar.Realize()
100    
101    
102          # Create the map canvas          # Create the map canvas
103          canvas = view.MapCanvas(self, -1, interactor)          canvas = view.MapCanvas(self, -1)
104          canvas.Subscribe(VIEW_POSITION, self.view_position_changed)          canvas.Subscribe(VIEW_POSITION, self.view_position_changed)
105            canvas.Subscribe(SHAPES_SELECTED, self.identify_view_on_demand)
106          self.canvas = canvas          self.canvas = canvas
107            self.canvas.Subscribe(TITLE_CHANGED, self.title_changed)
108    
109            self.SetMainWindow(self.canvas)
110    
111            self.SetAutoLayout(True)
112    
113          self.init_dialogs()          self.init_dialogs()
114    
115          interactor.Subscribe(SELECTED_SHAPE, self.identify_view_on_demand)          self.ShowLegend()
116    
117          EVT_CLOSE(self, self.OnClose)          EVT_CLOSE(self, self.OnClose)
118    
119        def Subscribe(self, channel, *args):
120            """Subscribe a function to a message channel.
121    
122            If channel is one of the delegated messages call the appropriate
123            object's Subscribe method. Otherwise do nothing.
124            """
125            if channel in self.delegated_messages:
126                object = getattr(self, self.delegated_messages[channel])
127                object.Subscribe(channel, *args)
128            else:
129                print "Trying to subscribe to unsupported channel %s" % channel
130    
131        def Unsubscribe(self, channel, *args):
132            """Unsubscribe a function from a message channel.
133    
134            If channel is one of the delegated messages call the appropriate
135            object's Unsubscribe method. Otherwise do nothing.
136            """
137            if channel in self.delegated_messages:
138                object = getattr(self, self.delegated_messages[channel])
139                try:
140                    object.Unsubscribe(channel, *args)
141                except wxPyDeadObjectError:
142                    # The object was a wxObject and has already been
143                    # destroyed. Hopefully it has unsubscribed all its
144                    # subscribers already so that it's OK if we do nothing
145                    # here
146                    pass
147    
148        def __getattr__(self, attr):
149            """If attr is one of the delegated methods return that method
150    
151            Otherwise raise AttributeError.
152            """
153            if attr in self.delegated_methods:
154                return getattr(getattr(self, self.delegated_methods[attr]), attr)
155            raise AttributeError(attr)
156    
157      def init_ids(self):      def init_ids(self):
158          """Initialize the ids"""          """Initialize the ids"""
159          self.current_id = 6000          self.current_id = 6000
# Line 168  class MainWindow(wxFrame): Line 248  class MainWindow(wxFrame):
248                              command.IsCheckCommand())                              command.IsCheckCommand())
249                  self.bind_command_events(command, ID)                  self.bind_command_events(command, ID)
250              else:              else:
251                  print "Unknown command %s" % name                  print _("Unknown command %s") % name
252    
253      def add_toolbar_command(self, toolbar, name):      def add_toolbar_command(self, toolbar, name):
254          """Add the command with name name to the toolbar toolbar.          """Add the command with name name to the toolbar toolbar.
# Line 183  class MainWindow(wxFrame): Line 263  class MainWindow(wxFrame):
263              command = registry.Command(name)              command = registry.Command(name)
264              if command is not None:              if command is not None:
265                  ID = self.get_id(name)                  ID = self.get_id(name)
266                  filename = os.path.join(bitmapdir, command.Icon()) + bitmapext                  bitmap = resource.GetBitmapResource(command.Icon(),
267                  bitmap = wxBitmap(filename, wxBITMAP_TYPE_XPM)                                                      wxBITMAP_TYPE_XPM)
268                  toolbar.AddTool(ID, bitmap,                  toolbar.AddTool(ID, bitmap,
269                                  shortHelpString = command.HelpText(),                                  shortHelpString = command.HelpText(),
270                                  isToggle = command.IsCheckCommand())                                  isToggle = command.IsCheckCommand())
271                  self.bind_command_events(command, ID)                  self.bind_command_events(command, ID)
272              else:              else:
273                  print "Unknown command %s" % name                  print _("Unknown command %s") % name
274    
275      def Context(self):      def Context(self):
276          """Return the context object for a command invoked from this window          """Return the context object for a command invoked from this window
# Line 203  class MainWindow(wxFrame): Line 283  class MainWindow(wxFrame):
283              command = registry.Command(name)              command = registry.Command(name)
284              command.Execute(self.Context())              command.Execute(self.Context())
285          else:          else:
286              print "Unknown command ID %d" % event.GetId()              print _("Unknown command ID %d") % event.GetId()
287    
288      def update_command_ui(self, event):      def update_command_ui(self, event):
289          #print "update_command_ui", self.id_to_name[event.GetId()]          #print "update_command_ui", self.id_to_name[event.GetId()]
# Line 242  class MainWindow(wxFrame): Line 322  class MainWindow(wxFrame):
322    
323      def add_dialog(self, name, dialog):      def add_dialog(self, name, dialog):
324          if self.dialogs.has_key(name):          if self.dialogs.has_key(name):
325              raise RuntimeError("The Dialog named %s is already open" % name)              raise RuntimeError(_("The Dialog named %s is already open") % name)
326          self.dialogs[name] = dialog          self.dialogs[name] = dialog
327    
328      def dialog_open(self, name):      def dialog_open(self, name):
# Line 271  class MainWindow(wxFrame): Line 351  class MainWindow(wxFrame):
351          """          """
352          self.SetStatusText(text)          self.SetStatusText(text)
353    
354        def OpenOrRaiseDialog(self, name, dialog_class, *args, **kw):
355            """
356            Open or raise a dialog.
357    
358            If a dialog with the denoted name does already exist it is
359            raised.  Otherwise a new dialog, an instance of dialog_class,
360            is created, inserted into the main list and displayed.
361            """
362            dialog = self.get_open_dialog(name)
363    
364            if dialog is None:
365                dialog = dialog_class(self, name, *args, **kw)
366                self.add_dialog(name, dialog)
367                dialog.Show(True)
368            else:
369                dialog.Raise()
370                              
371      def save_modified_session(self, can_veto = 1):      def save_modified_session(self, can_veto = 1):
372          """If the current session has been modified, ask the user          """If the current session has been modified, ask the user
373          whether to save it and do so if requested. Return the outcome of          whether to save it and do so if requested. Return the outcome of
# Line 284  class MainWindow(wxFrame): Line 381  class MainWindow(wxFrame):
381              flags = wxYES_NO | wxICON_QUESTION              flags = wxYES_NO | wxICON_QUESTION
382              if can_veto:              if can_veto:
383                  flags = flags | wxCANCEL                  flags = flags | wxCANCEL
384              result = self.RunMessageBox("Exit",              result = self.RunMessageBox(_("Exit"),
385                                          ("The session has been modified."                                          _("The session has been modified."
386                                           " Do you want to save it?"),                                           " Do you want to save it?"),
387                                          flags)                                          flags)
388              if result == wxID_YES:              if result == wxID_YES:
# Line 295  class MainWindow(wxFrame): Line 392  class MainWindow(wxFrame):
392          return result          return result
393    
394      def NewSession(self):      def NewSession(self):
395          self.save_modified_session()          if self.save_modified_session() != wxID_CANCEL:
396          self.application.SetSession(create_empty_session())              self.application.SetSession(create_empty_session())
397    
398      def OpenSession(self):      def OpenSession(self):
399          self.save_modified_session()          if self.save_modified_session() != wxID_CANCEL:
400          dlg = wxFileDialog(self, "Select a session file", ".", "",              dlg = wxFileDialog(self, _("Open Session"),
401                             "*.thuban", wxOPEN)                                 self.application.Path("data"), "",
402          if dlg.ShowModal() == wxID_OK:                                 "Thuban Session File (*.thuban)|*.thuban",
403              self.application.OpenSession(dlg.GetPath())                                 wxOPEN)
404          dlg.Destroy()              if dlg.ShowModal() == wxID_OK:
405                    self.application.OpenSession(dlg.GetPath(),
406                                                 self.run_db_param_dialog)
407                    self.application.SetPath("data", dlg.GetPath())
408                dlg.Destroy()
409    
410        def run_db_param_dialog(self, parameters, message):
411            dlg = DBDialog(self, _("DB Connection Parameters"), parameters,
412                           message)
413            return dlg.RunDialog()
414    
415      def SaveSession(self):      def SaveSession(self):
416          if self.application.session.filename == None:          if self.application.session.filename == None:
417              self.SaveSessionAs()              self.SaveSessionAs()
418          self.application.SaveSession()          else:
419                self.application.SaveSession()
420    
421      def SaveSessionAs(self):      def SaveSessionAs(self):
422          dlg = wxFileDialog(self, "Enter a filename for session", ".", "",          dlg = wxFileDialog(self, _("Save Session As"),
423                             "*.thuban", wxOPEN)                             self.application.Path("data"), "",
424                               "Thuban Session File (*.thuban)|*.thuban",
425                               wxSAVE|wxOVERWRITE_PROMPT)
426          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wxID_OK:
427              self.application.session.SetFilename(dlg.GetPath())              self.application.session.SetFilename(dlg.GetPath())
428              self.application.SaveSession()              self.application.SaveSession()
429                self.application.SetPath("data",dlg.GetPath())
430          dlg.Destroy()          dlg.Destroy()
431    
432      def Exit(self):      def Exit(self):
433          self.Close(false)          self.Close(False)
434    
435      def OnClose(self, event):      def OnClose(self, event):
436          result = self.save_modified_session(can_veto = event.CanVeto())          result = self.save_modified_session(can_veto = event.CanVeto())
# Line 331  class MainWindow(wxFrame): Line 441  class MainWindow(wxFrame):
441              # wx's destroy event, but that isn't implemented for wxGTK              # wx's destroy event, but that isn't implemented for wxGTK
442              # yet.              # yet.
443              self.canvas.Unsubscribe(VIEW_POSITION, self.view_position_changed)              self.canvas.Unsubscribe(VIEW_POSITION, self.view_position_changed)
444                DockFrame.OnClose(self, event)
445                for dlg in self.dialogs.values():
446                    dlg.Destroy()
447                self.canvas.Destroy()
448              self.Destroy()              self.Destroy()
449    
450      def SetMap(self, map):      def SetMap(self, map):
451          self.canvas.SetMap(map)          self.canvas.SetMap(map)
452            self.update_title()
453    
454            dialog = self.FindRegisteredDock("legend")
455            if dialog is not None:
456                dialog.GetPanel().SetMap(self.Map())
457    
458      def Map(self):      def Map(self):
459          """Return the map displayed by this mainwindow"""          """Return the map displayed by this mainwindow"""
460    
461          return self.canvas.Map()          return self.canvas.Map()
462    
463      def ShowSessionTree(self):      def ToggleSessionTree(self):
464            """If the session tree is shown close it otherwise create a new tree"""
465          name = "session_tree"          name = "session_tree"
466          dialog = self.get_open_dialog(name)          dialog = self.get_open_dialog(name)
467          if dialog is None:          if dialog is None:
468              dialog = tree.SessionTreeView(self, self.application, name)              dialog = tree.SessionTreeView(self, self.application, name)
469              self.add_dialog(name, dialog)              self.add_dialog(name, dialog)
470              dialog.Show(true)              dialog.Show(True)
471          else:          else:
472              # FIXME: bring dialog to front here              dialog.Close()
473              pass  
474        def SessionTreeShown(self):
475            """Return true iff the session tree is currently shown"""
476            return self.get_open_dialog("session_tree") is not None
477    
478      def About(self):      def About(self):
479          self.RunMessageBox("About",          dlg = About(self)
480                             ("Thuban is a program for\n"          dlg.ShowModal()
481                              "exploring geographic data.\n"          dlg.Destroy()
482                              "Copyright (C) 2001, 2002 Intevation GmbH.\n"  
483                              "Thuban is licensed under the GPL"),      def DatabaseManagement(self):
484                             wxOK | wxICON_INFORMATION)          name = "dbmanagement"
485            dialog = self.get_open_dialog(name)
486            if dialog is None:
487                map = self.canvas.Map()
488                dialog = DBFrame(self, name, self.application.Session())
489                self.add_dialog(name, dialog)
490                dialog.Show()
491            dialog.Raise()
492    
493      def AddLayer(self):      def AddLayer(self):
494          dlg = wxFileDialog(self, "Select a data file", ".", "", "*.*",          dlg = wxFileDialog(self, _("Select one or more data files"),
495                               self.application.Path("data"), "",
496                               _("Shapefiles (*.shp)") + "|*.shp;*.SHP|" +
497                               _("All Files (*.*)") + "|*.*",
498                               wxOPEN | wxMULTIPLE)
499            if dlg.ShowModal() == wxID_OK:
500                filenames = dlg.GetPaths()
501                for filename in filenames:
502                    title = os.path.splitext(os.path.basename(filename))[0]
503                    map = self.canvas.Map()
504                    has_layers = map.HasLayers()
505                    try:
506                        store = self.application.Session().OpenShapefile(filename)
507                    except IOError:
508                        # the layer couldn't be opened
509                        self.RunMessageBox(_("Add Layer"),
510                                           _("Can't open the file '%s'.")%filename)
511                    else:
512                        layer = Layer(title, store)
513                        map.AddLayer(layer)
514                        if not has_layers:
515                            # if we're adding a layer to an empty map, fit the
516                            # new map to the window
517                            self.canvas.FitMapToWindow()
518                        self.application.SetPath("data",filename)
519            dlg.Destroy()
520    
521        def AddRasterLayer(self):
522            dlg = wxFileDialog(self, _("Select an image file"),
523                               self.application.Path("data"), "", "*.*",
524                             wxOPEN)                             wxOPEN)
525          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wxID_OK:
526              filename = dlg.GetPath()              filename = dlg.GetPath()
527              title = os.path.splitext(os.path.basename(filename))[0]              title = os.path.splitext(os.path.basename(filename))[0]
             layer = Layer(title, filename)  
528              map = self.canvas.Map()              map = self.canvas.Map()
529              has_layers = map.HasLayers()              has_layers = map.HasLayers()
530              try:              try:
531                  map.AddLayer(layer)                  layer = RasterLayer(title, filename)
532              except IOError:              except IOError:
533                  # the layer couldn't be opened                  # the layer couldn't be opened
534                  self.RunMessageBox("Add Layer",                  self.RunMessageBox(_("Add Image Layer"),
535                                     "Can't open the file '%s'." % filename)                                     _("Can't open the file '%s'.") % filename)
536              else:              else:
537                    map.AddLayer(layer)
538                  if not has_layers:                  if not has_layers:
539                      # if we're adding a layer to an empty map, for the                      # if we're adding a layer to an empty map, fit the
540                      # new map to the window                      # new map to the window
541                      self.canvas.FitMapToWindow()                      self.canvas.FitMapToWindow()
542                    self.application.SetPath("data", filename)
543            dlg.Destroy()
544    
545        def AddDBLayer(self):
546            """Add a layer read from a database"""
547            session = self.application.Session()
548            dlg = ChooseDBTableDialog(self, self.application.Session())
549    
550            if dlg.ShowModal() == wxID_OK:
551                dbconn, dbtable, id_column, geo_column = dlg.GetTable()
552                try:
553                    title = str(dbtable)
554    
555                    # Chose the correct Interface for the database type
556                    store = session.OpenDBShapeStore(dbconn, dbtable,
557                                                     id_column = id_column,
558                                                     geometry_column = geo_column)
559                    layer = Layer(title, store)
560                except:
561                    # Some error occured while initializing the layer
562                    self.RunMessageBox(_("Add Layer from database"),
563                                       _("Can't open the database table '%s'")
564                                       % dbtable)
565                    return
566    
567                map = self.canvas.Map()
568    
569                has_layers = map.HasLayers()
570                map.AddLayer(layer)
571                if not has_layers:
572                    self.canvas.FitMapToWindow()
573    
574          dlg.Destroy()          dlg.Destroy()
575    
576      def RemoveLayer(self):      def RemoveLayer(self):
# Line 389  class MainWindow(wxFrame): Line 581  class MainWindow(wxFrame):
581      def CanRemoveLayer(self):      def CanRemoveLayer(self):
582          """Return true if the currently selected layer can be deleted.          """Return true if the currently selected layer can be deleted.
583    
584          If no layer is selected return false.          If no layer is selected return False.
585    
586          The return value of this method determines whether the remove          The return value of this method determines whether the remove
587          layer command is sensitive in menu.          layer command is sensitive in menu.
# Line 397  class MainWindow(wxFrame): Line 589  class MainWindow(wxFrame):
589          layer = self.current_layer()          layer = self.current_layer()
590          if layer is not None:          if layer is not None:
591              return self.canvas.Map().CanRemoveLayer(layer)              return self.canvas.Map().CanRemoveLayer(layer)
592          return 0          return False
593    
594        def LayerToTop(self):
595            layer = self.current_layer()
596            if layer is not None:
597                self.canvas.Map().MoveLayerToTop(layer)
598    
599      def RaiseLayer(self):      def RaiseLayer(self):
600          layer = self.current_layer()          layer = self.current_layer()
# Line 409  class MainWindow(wxFrame): Line 606  class MainWindow(wxFrame):
606          if layer is not None:          if layer is not None:
607              self.canvas.Map().LowerLayer(layer)              self.canvas.Map().LowerLayer(layer)
608    
609        def LayerToBottom(self):
610            layer = self.current_layer()
611            if layer is not None:
612                self.canvas.Map().MoveLayerToBottom(layer)
613    
614      def current_layer(self):      def current_layer(self):
615          """Return the currently selected layer.          """Return the currently selected layer.
616    
617          If no layer is selected, return None          If no layer is selected, return None
618          """          """
619          return self.interactor.SelectedLayer()          return self.canvas.SelectedLayer()
620    
621      def has_selected_layer(self):      def has_selected_layer(self):
622          """Return true if a layer is currently selected"""          """Return true if a layer is currently selected"""
623          return self.interactor.HasSelectedLayer()          return self.canvas.HasSelectedLayer()
624    
625      def choose_color(self):      def has_selected_shape_layer(self):
626          """Run the color selection dialog and return the selected color.          """Return true if a shape layer is currently selected"""
627            return isinstance(self.current_layer(), Layer)
628    
629        def has_selected_shapes(self):
630            """Return true if a shape is currently selected"""
631            return self.canvas.HasSelectedShapes()
632    
633          If the user cancels, return None.      def HideLayer(self):
         """  
         dlg = wxColourDialog(self)  
         color = None  
         if dlg.ShowModal() == wxID_OK:  
             data = dlg.GetColourData()  
             wxc = data.GetColour()  
             color = Color(wxc.Red() / 255.0,  
                           wxc.Green() / 255.0,  
                           wxc.Blue() / 255.0)  
         dlg.Destroy()  
         return color  
   
     def LayerFillColor(self):  
634          layer = self.current_layer()          layer = self.current_layer()
635          if layer is not None:          if layer is not None:
636              color = self.choose_color()              layer.SetVisible(False)
             if color is not None:  
                 layer.SetFill(color)  
637    
638      def LayerTransparentFill(self):      def ShowLayer(self):
639          layer = self.current_layer()          layer = self.current_layer()
640          if layer is not None:          if layer is not None:
641              layer.SetFill(None)              layer.SetVisible(True)
642    
643      def LayerOutlineColor(self):      def ToggleLayerVisibility(self):
644          layer = self.current_layer()          layer = self.current_layer()
645          if layer is not None:          layer.SetVisible(not layer.Visible())
             color = self.choose_color()  
             if color is not None:  
                 layer.SetStroke(color)  
646    
647      def LayerNoOutline(self):      def DuplicateLayer(self):
648            """Ceate a new layer above the selected layer with the same shapestore
649            """
650          layer = self.current_layer()          layer = self.current_layer()
651          if layer is not None:          if layer is not None and hasattr(layer, "ShapeStore"):
652              layer.SetStroke(None)              new_layer = Layer(_("Copy of `%s'") % layer.Title(),
653                                  layer.ShapeStore(),
654                                  projection = layer.GetProjection())
655                new_classification = copy.deepcopy(layer.GetClassification())
656                new_layer.SetClassification(new_classification)
657                self.Map().AddLayer(new_layer)
658    
659      def HideLayer(self):      def CanDuplicateLayer(self):
660            """Return whether the DuplicateLayer method can create a duplicate"""
661          layer = self.current_layer()          layer = self.current_layer()
662          if layer is not None:          return layer is not None and hasattr(layer, "ShapeStore")
             layer.SetVisible(0)  
           
     def ShowLayer(self):  
         layer = self.current_layer()  
         if layer is not None:  
             layer.SetVisible(1)  
663    
664      def LayerShowTable(self):      def LayerShowTable(self):
665            """
666            Present a TableView Window for the current layer.
667            In case the window is already open, bring it to the front.
668            In case, there is no active layer, do nothing.
669            In case, the layer has no ShapeStore, do nothing.
670            """
671          layer = self.current_layer()          layer = self.current_layer()
672          if layer is not None:          if layer is not None:
673              table = layer.table              if not hasattr(layer, "ShapeStore"):
674                    return
675                table = layer.ShapeStore().Table()
676              name = "table_view" + str(id(table))              name = "table_view" + str(id(table))
677              dialog = self.get_open_dialog(name)              dialog = self.get_open_dialog(name)
678              if dialog is None:              if dialog is None:
679                  dialog = tableview.LayerTableFrame(self, self.interactor, name,                  dialog = tableview.LayerTableFrame(self, name,
680                                                     "Table: %s" % layer.Title(),                                           _("Layer Table: %s") % layer.Title(),
681                                                     layer, table)                                           layer, table)
682                  self.add_dialog(name, dialog)                  self.add_dialog(name, dialog)
683                  dialog.Show(true)                  dialog.Show(True)
684              else:              else:
685                  # FIXME: bring dialog to front here                  dialog.Raise()
686                  pass  
687        def MapProjection(self):
688    
689            name = "map_projection"
690            dialog = self.get_open_dialog(name)
691    
692            if dialog is None:
693                map = self.canvas.Map()
694                dialog = projdialog.ProjFrame(self, name,
695                         _("Map Projection: %s") % map.Title(), map)
696                self.add_dialog(name, dialog)
697                dialog.Show()
698            dialog.Raise()
699    
700        def LayerProjection(self):
701    
702            layer = self.current_layer()
703    
704      def Projection(self):          name = "layer_projection" + str(id(layer))
705          map = self.canvas.Map()          dialog = self.get_open_dialog(name)
706          proj = map.projection  
707          if proj is None:          if dialog is None:
708              proj4Dlg = proj4dialog.Proj4Dialog(NULL, None, map.BoundingBox())              map = self.canvas.Map()
709          else:              dialog = projdialog.ProjFrame(self, name,
710              proj4Dlg = proj4dialog.Proj4Dialog(NULL, map.projection.params,                       _("Layer Projection: %s") % layer.Title(), layer)
711                                                 map.BoundingBox())              self.add_dialog(name, dialog)
712          if proj4Dlg.ShowModal() == wxID_OK:              dialog.Show()
713              params = proj4Dlg.GetParams()          dialog.Raise()
714              if params is not None:  
715                  proj = Projection(params)      def LayerEditProperties(self):
716    
717            #
718            # the menu option for this should only be available if there
719            # is a current layer, so we don't need to check if the
720            # current layer is None
721            #
722    
723            layer = self.current_layer()
724            self.OpenLayerProperties(layer)
725    
726        def OpenLayerProperties(self, layer, group = None):
727            """
728            Open or raise the properties dialog.
729    
730            This method opens or raises the properties dialog for the
731            currently selected layer if one is defined for this layer
732            type.
733            """
734            dialog_class = layer_properties_dialogs.get(layer)
735    
736            if dialog_class is not None:
737                name = "layer_properties" + str(id(layer))
738                self.OpenOrRaiseDialog(name, dialog_class, layer, group = group)
739    
740        def LayerJoinTable(self):
741            layer = self.canvas.SelectedLayer()
742            if layer is not None:
743                dlg = JoinDialog(self, _("Join Layer with Table"),
744                                 self.application.session,
745                                 layer = layer)
746                dlg.ShowModal()
747    
748        def LayerUnjoinTable(self):
749            layer = self.canvas.SelectedLayer()
750            if layer is not None:
751                orig_store = layer.ShapeStore().OrigShapeStore()
752                if orig_store:
753                    layer.SetShapeStore(orig_store)
754    
755        def ShowLegend(self):
756            if not self.LegendShown():
757                self.ToggleLegend()
758    
759        def ToggleLegend(self):
760            """Show the legend if it's not shown otherwise hide it again"""
761            name = "legend"
762            dialog = self.FindRegisteredDock(name)
763    
764            if dialog is None:
765                dialog = self.CreateDock(name, -1, _("Legend"), wxLAYOUT_LEFT)
766                legend.LegendPanel(dialog, None, self)
767                dialog.Dock()
768                dialog.GetPanel().SetMap(self.Map())
769                dialog.Show()
770            else:
771                dialog.Show(not dialog.IsShown())
772    
773        def LegendShown(self):
774            """Return true iff the legend is currently open"""
775            dialog = self.FindRegisteredDock("legend")
776            return dialog is not None and dialog.IsShown()
777    
778        def TableOpen(self):
779            dlg = wxFileDialog(self, _("Open Table"),
780                               self.application.Path("data"), "",
781                               _("DBF Files (*.dbf)") + "|*.dbf|" +
782                               #_("CSV Files (*.csv)") + "|*.csv|" +
783                               _("All Files (*.*)") + "|*.*",
784                               wxOPEN)
785            if dlg.ShowModal() == wxID_OK:
786                filename = dlg.GetPath()
787                dlg.Destroy()
788                try:
789                    table = self.application.session.OpenTableFile(filename)
790                except IOError:
791                    # the layer couldn't be opened
792                    self.RunMessageBox(_("Open Table"),
793                                       _("Can't open the file '%s'.") % filename)
794              else:              else:
795                  proj = None                  self.ShowTableView(table)
796              map.SetProjection(proj)                  self.application.SetPath("data",filename)
797          proj4Dlg.Destroy()  
798        def TableClose(self):
799            tables = self.application.session.UnreferencedTables()
800    
801            lst = [(t.Title(), t) for t in tables]
802            lst.sort()
803            titles = [i[0] for i in lst]
804            dlg = wxMultipleChoiceDialog(self, _("Pick the tables to close:"),
805                                         _("Close Table"), titles,
806                                         size = (400, 300),
807                                         style = wxDEFAULT_DIALOG_STYLE |
808                                                 wxRESIZE_BORDER)
809            if dlg.ShowModal() == wxID_OK:
810                for i in dlg.GetValue():
811                    self.application.session.RemoveTable(lst[i][1])
812    
813    
814        def TableShow(self):
815            """Offer a multi-selection dialog for tables to be displayed
816    
817            The windows for the selected tables are opened or brought to
818            the front.
819            """
820            tables = self.application.session.Tables()
821    
822            lst = [(t.Title(), t) for t in tables]
823            lst.sort()
824            titles = [i[0] for i in lst]
825            dlg = wxMultipleChoiceDialog(self, _("Pick the table to show:"),
826                                         _("Show Table"), titles,
827                                         size = (400,300),
828                                         style = wxDEFAULT_DIALOG_STYLE |
829                                                 wxRESIZE_BORDER)
830            if (dlg.ShowModal() == wxID_OK):
831                for i in dlg.GetValue():
832                    # XXX: if the table belongs to a layer, open a
833                    # LayerTableFrame instead of QueryTableFrame
834                    self.ShowTableView(lst[i][1])
835    
836        def TableJoin(self):
837            dlg = JoinDialog(self, _("Join Tables"), self.application.session)
838            dlg.ShowModal()
839    
840        def ShowTableView(self, table):
841            """Open a table view for the table and optionally"""
842            name = "table_view%d" % id(table)
843            dialog = self.get_open_dialog(name)
844            if dialog is None:
845                dialog = tableview.QueryTableFrame(self, name,
846                                                   _("Table: %s") % table.Title(),
847                                                   table)
848                self.add_dialog(name, dialog)
849                dialog.Show(True)
850            dialog.Raise()
851    
852        def TableRename(self):
853            """Let the user rename a table"""
854    
855            # First, let the user select a table
856            tables = self.application.session.Tables()
857            lst = [(t.Title(), t) for t in tables]
858            lst.sort()
859            titles = [i[0] for i in lst]
860            dlg = wxMultipleChoiceDialog(self, _("Pick the table to rename:"),
861                                         _("Rename Table"), titles,
862                                         size = (400,300),
863                                         style = wxDEFAULT_DIALOG_STYLE |
864                                                 wxRESIZE_BORDER)
865            if (dlg.ShowModal() == wxID_OK):
866                to_rename = [lst[i][1] for i in dlg.GetValue()]
867                dlg.Destroy()
868            else:
869                to_rename = []
870    
871            # Second, let the user rename the layers
872            for table in to_rename:
873                dlg = wxTextEntryDialog(self, _("Table Title:"), _("Rename Table"),
874                                        table.Title())
875                try:
876                    if dlg.ShowModal() == wxID_OK:
877                        title = dlg.GetValue()
878                        if title != "":
879                            table.SetTitle(title)
880    
881                            # Make sure the session is marked as modified.
882                            # FIXME: This should be handled automatically,
883                            # but that requires more changes to the tables
884                            # than I have time for currently.
885                            self.application.session.changed()
886                finally:
887                    dlg.Destroy()
888    
889    
890      def ZoomInTool(self):      def ZoomInTool(self):
891          self.canvas.ZoomInTool()          self.canvas.ZoomInTool()
# Line 522  class MainWindow(wxFrame): Line 906  class MainWindow(wxFrame):
906      def FullExtent(self):      def FullExtent(self):
907          self.canvas.FitMapToWindow()          self.canvas.FitMapToWindow()
908    
909        def FullLayerExtent(self):
910            self.canvas.FitLayerToWindow(self.current_layer())
911    
912        def FullSelectionExtent(self):
913            self.canvas.FitSelectedToWindow()
914    
915        def ExportMap(self):
916            self.canvas.Export()
917    
918      def PrintMap(self):      def PrintMap(self):
919          self.canvas.Print()          self.canvas.Print()
920    
921      def identify_view_on_demand(self, layer, shape):      def RenameMap(self):
922            dlg = wxTextEntryDialog(self, _("Map Title:"), _("Rename Map"),
923                                    self.Map().Title())
924            if dlg.ShowModal() == wxID_OK:
925                title = dlg.GetValue()
926                if title != "":
927                    self.Map().SetTitle(title)
928    
929            dlg.Destroy()
930    
931        def RenameLayer(self):
932            """Let the user rename the currently selected layer"""
933            layer = self.current_layer()
934            if layer is not None:
935                dlg = wxTextEntryDialog(self, _("Layer Title:"), _("Rename Layer"),
936                                        layer.Title())
937                try:
938                    if dlg.ShowModal() == wxID_OK:
939                        title = dlg.GetValue()
940                        if title != "":
941                            layer.SetTitle(title)
942                finally:
943                    dlg.Destroy()
944    
945        def identify_view_on_demand(self, layer, shapes):
946            """Subscribed to the canvas' SHAPES_SELECTED message
947    
948            If the current tool is the identify tool, at least one shape is
949            selected and the identify dialog is not shown, show the dialog.
950            """
951            # If the selection has become empty we don't need to do
952            # anything. Otherwise it could happen that the dialog was popped
953            # up when the selection became empty, e.g. when a new selection
954            # is opened while the identify tool is active and dialog had
955            # been closed
956            if not shapes:
957                return
958    
959          name = "identify_view"          name = "identify_view"
960          if self.canvas.CurrentTool() == "IdentifyTool":          if self.canvas.CurrentTool() == "IdentifyTool":
961              if not self.dialog_open(name):              if not self.dialog_open(name):
962                  dialog = identifyview.IdentifyView(self, self.interactor, name)                  dialog = identifyview.IdentifyView(self, name)
963                  self.add_dialog(name, dialog)                  self.add_dialog(name, dialog)
964                  dialog.Show(true)                  dialog.Show(True)
965              else:              else:
966                  # FIXME: bring dialog to front?                  # FIXME: bring dialog to front?
967                  pass                  pass
968    
969        def title_changed(self, map):
970            """Subscribed to the canvas' TITLE_CHANGED messages"""
971            self.update_title()
972    
973        def update_title(self):
974            """Update the window's title according to it's current state.
975    
976            In this default implementation the title is 'Thuban - ' followed
977            by the map's title or simply 'Thuban' if there is not map.
978            Derived classes should override this method to get different
979            titles.
980    
981            This method is called automatically by other methods when the
982            title may have to change. For the methods implemented in this
983            class this usually only means that a different map has been set
984            or the current map's title has changed.
985            """
986            map = self.Map()
987            if map is not None:
988                title = _("Thuban - %s") % (map.Title(),)
989            else:
990                title = _("Thuban")
991            self.SetTitle(title)
992    
993    
994  #  #
995  # Define all the commands available in the main window  # Define all the commands available in the main window
996  #  #
# Line 547  def call_method(context, methodname, *ar Line 1002  def call_method(context, methodname, *ar
1002      apply(getattr(context.mainwindow, methodname), args)      apply(getattr(context.mainwindow, methodname), args)
1003    
1004  def _method_command(name, title, method, helptext = "",  def _method_command(name, title, method, helptext = "",
1005                      icon = "", sensitive = None):                      icon = "", sensitive = None, checked = None):
1006      """Add a command implemented by a method of the mainwindow object"""      """Add a command implemented by a method of the mainwindow object"""
1007      registry.Add(Command(name, title, call_method, args=(method,),      registry.Add(Command(name, title, call_method, args=(method,),
1008                           helptext = helptext, icon = icon,                           helptext = helptext, icon = icon,
1009                           sensitive = sensitive))                           sensitive = sensitive, checked = checked))
1010    
1011  def make_check_current_tool(toolname):  def make_check_current_tool(toolname):
1012      """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 576  def _has_selected_layer(context): Line 1031  def _has_selected_layer(context):
1031      """Return true if a layer is selected in the context"""      """Return true if a layer is selected in the context"""
1032      return context.mainwindow.has_selected_layer()      return context.mainwindow.has_selected_layer()
1033    
1034    def _has_selected_layer_visible(context):
1035        """Return true if a layer is selected in the context which is
1036        visible."""
1037        if context.mainwindow.has_selected_layer():
1038            layer = context.mainwindow.current_layer()
1039            if layer.Visible(): return True
1040        return False
1041    
1042    def _has_selected_shape_layer(context):
1043        """Return true if a shape layer is selected in the context"""
1044        return context.mainwindow.has_selected_shape_layer()
1045    
1046    def _has_selected_shapes(context):
1047        """Return true if a layer is selected in the context"""
1048        return context.mainwindow.has_selected_shapes()
1049    
1050  def _can_remove_layer(context):  def _can_remove_layer(context):
1051      return context.mainwindow.CanRemoveLayer()      return context.mainwindow.CanRemoveLayer()
1052    
1053  def _has_tree_window_shown(context):  def _has_tree_window_shown(context):
1054      """Return true if the tree window is shown"""      """Return true if the tree window is shown"""
1055      return context.mainwindow.get_open_dialog("session_tree") is None      return context.mainwindow.SessionTreeShown()
1056    
1057  def _has_visible_map(context):  def _has_visible_map(context):
1058      """Return true iff theres a visible map in the mainwindow.      """Return true iff theres a visible map in the mainwindow.
# Line 591  def _has_visible_map(context): Line 1062  def _has_visible_map(context):
1062      if map is not None:      if map is not None:
1063          for layer in map.Layers():          for layer in map.Layers():
1064              if layer.Visible():              if layer.Visible():
1065                  return 1                  return True
1066      return 0      return False
1067    
1068    def _has_legend_shown(context):
1069        """Return true if the legend window is shown"""
1070        return context.mainwindow.LegendShown()
1071    
1072    def _has_gdal_support(context):
1073        """Return True if the GDAL is available"""
1074        return Thuban.Model.resource.has_gdal_support()
1075    
1076    def _has_dbconnections(context):
1077        """Return whether the the session has database connections"""
1078        return context.session.HasDBConnections()
1079    
1080    def _has_postgis_support(context):
1081        return has_postgis_support()
1082    
1083    
1084  # File menu  # File menu
1085  _method_command("new_session", "&New Session", "NewSession")  _method_command("new_session", _("&New Session"), "NewSession",
1086  _method_command("open_session", "&Open Session", "OpenSession")                  helptext = _("Start a new session"))
1087  _method_command("save_session", "&Save Session", "SaveSession")  _method_command("open_session", _("&Open Session..."), "OpenSession",
1088  _method_command("save_session_as", "Save Session &As", "SaveSessionAs")                  helptext = _("Open a session file"))
1089  _method_command("show_session_tree", "Show Session &Tree", "ShowSessionTree",  _method_command("save_session", _("&Save Session"), "SaveSession",
1090                  sensitive = _has_tree_window_shown)                  helptext =_("Save this session to the file it was opened from"))
1091  _method_command("exit", "E&xit", "Exit")  _method_command("save_session_as", _("Save Session &As..."), "SaveSessionAs",
1092                    helptext = _("Save this session to a new file"))
1093    _method_command("toggle_session_tree", _("Session &Tree"), "ToggleSessionTree",
1094                    checked = _has_tree_window_shown,
1095                    helptext = _("Toggle on/off the session tree analysis window"))
1096    _method_command("toggle_legend", _("Legend"), "ToggleLegend",
1097                    checked = _has_legend_shown,
1098                    helptext = _("Toggle Legend on/off"))
1099    _method_command("database_management", _("&Database Connections..."),
1100                    "DatabaseManagement",
1101                    sensitive = _has_postgis_support)
1102    _method_command("exit", _("E&xit"), "Exit",
1103                    helptext = _("Finish working with Thuban"))
1104    
1105  # Help menu  # Help menu
1106  _method_command("help_about", "&About", "About")  _method_command("help_about", _("&About..."), "About",
1107                    helptext = _("Info about Thuban authors, version and modules"))
1108    
1109    
1110  # Map menu  # Map menu
1111  _method_command("map_projection", "Pro&jection", "Projection")  _method_command("map_projection", _("Pro&jection..."), "MapProjection",
1112                    helptext = _("Set or change the map projection"))
1113    
1114  _tool_command("map_zoom_in_tool", "&Zoom in", "ZoomInTool", "ZoomInTool",  _tool_command("map_zoom_in_tool", _("&Zoom in"), "ZoomInTool", "ZoomInTool",
1115                helptext = "Switch to map-mode 'zoom-in'", icon = "zoom_in",                helptext = _("Switch to map-mode 'zoom-in'"), icon = "zoom_in",
1116                sensitive = _has_visible_map)                sensitive = _has_visible_map)
1117  _tool_command("map_zoom_out_tool", "Zoom &out", "ZoomOutTool", "ZoomOutTool",  _tool_command("map_zoom_out_tool", _("Zoom &out"), "ZoomOutTool", "ZoomOutTool",
1118                helptext = "Switch to map-mode 'zoom-out'", icon = "zoom_out",                helptext = _("Switch to map-mode 'zoom-out'"), icon = "zoom_out",
1119                sensitive = _has_visible_map)                sensitive = _has_visible_map)
1120  _tool_command("map_pan_tool", "&Pan", "PanTool", "PanTool",  _tool_command("map_pan_tool", _("&Pan"), "PanTool", "PanTool",
1121                helptext = "Switch to map-mode 'pan'", icon = "pan",                helptext = _("Switch to map-mode 'pan'"), icon = "pan",
1122                sensitive = _has_visible_map)                sensitive = _has_visible_map)
1123  _tool_command("map_identify_tool", "&Identify", "IdentifyTool", "IdentifyTool",  _tool_command("map_identify_tool", _("&Identify"), "IdentifyTool",
1124                helptext = "Switch to map-mode 'identify'", icon = "identify",                "IdentifyTool",
1125                  helptext = _("Switch to map-mode 'identify'"), icon = "identify",
1126                sensitive = _has_visible_map)                sensitive = _has_visible_map)
1127  _tool_command("map_label_tool", "&Label", "LabelTool", "LabelTool",  _tool_command("map_label_tool", _("&Label"), "LabelTool", "LabelTool",
1128                helptext = "Add/Remove labels", icon = "label",                helptext = _("Add/Remove labels"), icon = "label",
1129                sensitive = _has_visible_map)                sensitive = _has_visible_map)
1130  _method_command("map_full_extent", "&Full extent", "FullExtent",  _method_command("map_full_extent", _("&Full extent"), "FullExtent",
1131                 helptext = "Full Extent", icon = "fullextent",                 helptext = _("Zoom to the full map extent"), icon = "fullextent",
1132                sensitive = _has_visible_map)                sensitive = _has_visible_map)
1133  _method_command("map_print", "Prin&t", "PrintMap", helptext = "Print the map")  _method_command("layer_full_extent", _("&Full layer extent"), "FullLayerExtent",
1134                    helptext = _("Zoom to the full layer extent"),
1135                    icon = "fulllayerextent", sensitive = _has_selected_layer)
1136    _method_command("selected_full_extent", _("&Full selection extent"),
1137                    "FullSelectionExtent",
1138                    helptext = _("Zoom to the full selection extent"),
1139                    icon = "fullselextent", sensitive = _has_selected_shapes)
1140    _method_command("map_export", _("E&xport"), "ExportMap",
1141                    helptext = _("Export the map to file"))
1142    _method_command("map_print", _("Prin&t"), "PrintMap",
1143                    helptext = _("Print the map"))
1144    _method_command("map_rename", _("&Rename..."), "RenameMap",
1145                    helptext = _("Rename the map"))
1146    _method_command("layer_add", _("&Add Layer..."), "AddLayer",
1147                    helptext = _("Add a new layer to the map"))
1148    _method_command("rasterlayer_add", _("&Add Image Layer..."), "AddRasterLayer",
1149                    helptext = _("Add a new image layer to the map"),
1150                    sensitive = _has_gdal_support)
1151    _method_command("layer_add_db", _("Add &Database Layer..."), "AddDBLayer",
1152                    helptext = _("Add a new database layer to active map"),
1153                    sensitive = _has_dbconnections)
1154    _method_command("layer_remove", _("&Remove Layer"), "RemoveLayer",
1155                    helptext = _("Remove selected layer"),
1156                    sensitive = _can_remove_layer)
1157    
1158  # Layer menu  # Layer menu
1159  _method_command("layer_add", "&Add Layer", "AddLayer",  _method_command("layer_projection", _("Pro&jection..."), "LayerProjection",
1160                  helptext = "Add a new layer to active map")                  sensitive = _has_selected_layer,
1161  _method_command("layer_remove", "&Remove Layer", "RemoveLayer",                  helptext = _("Specify projection for selected layer"))
1162                  helptext = "Remove selected layer(s)",  _method_command("layer_duplicate", _("&Duplicate"), "DuplicateLayer",
1163                  sensitive = _can_remove_layer)                  helptext = _("Duplicate selected layer"),
1164  _method_command("layer_fill_color", "&Fill Color", "LayerFillColor",            sensitive = lambda context: context.mainwindow.CanDuplicateLayer())
1165                  helptext = "Set the fill color of selected layer(s)",  _method_command("layer_rename", _("Re&name ..."), "RenameLayer",
1166                  sensitive = _has_selected_layer)                  helptext = _("Rename selected layer"),
 _method_command("layer_transparent_fill", "&Transparent Fill",  
                 "LayerTransparentFill",  
                 helptext = "Do not fill the selected layer(s)",  
1167                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1168  _method_command("layer_outline_color", "&Outline Color", "LayerOutlineColor",  _method_command("layer_raise", _("&Raise"), "RaiseLayer",
1169                  helptext = "Set the outline color of selected layer(s)",                  helptext = _("Raise selected layer"),
1170                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1171  _method_command("layer_no_outline", "&No Outline", "LayerNoOutline",  _method_command("layer_lower", _("&Lower"), "LowerLayer",
1172                  helptext = "Do not draw the outline of the selected layer(s)",                  helptext = _("Lower selected layer"),
1173                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1174  _method_command("layer_raise", "&Raise", "RaiseLayer",  _method_command("layer_show", _("&Show"), "ShowLayer",
1175                  helptext = "Raise selected layer(s)",                  helptext = _("Make selected layer visible"),
1176                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1177  _method_command("layer_lower", "&Lower", "LowerLayer",  _method_command("layer_hide", _("&Hide"), "HideLayer",
1178                  helptext = "Lower selected layer(s)",                  helptext = _("Make selected layer unvisible"),
1179                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1180  _method_command("layer_show", "&Show", "ShowLayer",  _method_command("layer_show_table", _("Show Ta&ble"), "LayerShowTable",
1181                  helptext = "Make selected layer(s) visible",                  helptext = _("Show the selected layer's table"),
1182                    sensitive = _has_selected_shape_layer)
1183    _method_command("layer_properties", _("&Properties..."), "LayerEditProperties",
1184                    sensitive = _has_selected_layer,
1185                    helptext = _("Edit the properties of the selected layer"))
1186    _method_command("layer_jointable", _("&Join Table..."), "LayerJoinTable",
1187                    sensitive = _has_selected_shape_layer,
1188                    helptext = _("Join and attach a table to the selected layer"))
1189    
1190    # further layer methods:
1191    _method_command("layer_to_top", _("&Top"), "LayerToTop",
1192                    helptext = _("Put selected layer to the top"),
1193                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1194  _method_command("layer_hide", "&Hide", "HideLayer",  _method_command("layer_to_bottom", _("&Bottom"), "LayerToBottom",
1195                  helptext = "Make selected layer(s) unvisible",                  helptext = _("Put selected layer to the bottom"),
1196                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1197  _method_command("layer_show_table", "Show Ta&ble", "LayerShowTable",  _method_command("layer_visibility", _("&Visible"), "ToggleLayerVisibility",
1198                  helptext = "Show the selected layer's table",                  checked = _has_selected_layer_visible,
1199                    helptext = _("Toggle visibility of selected layer"),
1200                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1201    
1202    def _can_unjoin(context):
1203        """Return whether the Layer/Unjoin command can be executed.
1204    
1205  # the menu structure      This is the case if a layer is selected and that layer has a
1206  main_menu = Menu("<main>", "<main>",      shapestore that has an original shapestore.
1207                   [Menu("file", "&File",      """
1208                         ["new_session", "open_session", None,      layer = context.mainwindow.SelectedLayer()
1209                          "save_session", "save_session_as", None,      if layer is None:
1210                          "show_session_tree", None,          return 0
1211                          "exit"]),      getstore = getattr(layer, "ShapeStore", None)
1212                    Menu("map", "&Map",      if getstore is not None:
1213                         ["layer_add", "layer_remove",          return getstore().OrigShapeStore() is not None
1214        else:
1215            return 0
1216    _method_command("layer_unjointable", _("&Unjoin Table..."), "LayerUnjoinTable",
1217                    sensitive = _can_unjoin,
1218                    helptext = _("Undo the last join operation"))
1219    
1220    
1221    def _has_tables(context):
1222        return bool(context.session.Tables())
1223    
1224    # Table menu
1225    _method_command("table_open", _("&Open..."), "TableOpen",
1226                    helptext = _("Open a DBF-table from a file"))
1227    _method_command("table_close", _("&Close..."), "TableClose",
1228           sensitive = lambda context: bool(context.session.UnreferencedTables()),
1229                    helptext = _("Close one or more tables from a list"))
1230    _method_command("table_rename", _("&Rename..."), "TableRename",
1231                    sensitive = _has_tables,
1232                    helptext = _("Rename one or more tables"))
1233    _method_command("table_show", _("&Show..."), "TableShow",
1234                    sensitive = _has_tables,
1235                    helptext = _("Show one or more tables in a dialog"))
1236    _method_command("table_join", _("&Join..."), "TableJoin",
1237                    sensitive = _has_tables,
1238                    helptext = _("Join two tables creating a new one"))
1239    
1240    #  Export only under Windows ...
1241    map_menu = ["layer_add", "layer_add_db", "rasterlayer_add", "layer_remove",
1242                          None,                          None,
1243                            "map_rename",
1244                          "map_projection",                          "map_projection",
1245                          None,                          None,
1246                          "map_zoom_in_tool", "map_zoom_out_tool",                          "map_zoom_in_tool", "map_zoom_out_tool",
1247                          "map_pan_tool", "map_identify_tool", "map_label_tool",                          "map_pan_tool",
                         None,  
1248                          "map_full_extent",                          "map_full_extent",
1249                            "layer_full_extent",
1250                            "selected_full_extent",
1251                          None,                          None,
1252                          "map_print"]),                          "map_identify_tool", "map_label_tool",
1253                    Menu("layer", "&Layer",                          None,
1254                         ["layer_fill_color", "layer_transparent_fill",                          "toggle_legend",
1255                          "layer_outline_color", "layer_no_outline",                          None]
1256    if wxPlatform == '__WXMSW__':
1257        map_menu.append("map_export")
1258    map_menu.append("map_print")
1259    
1260    # the menu structure
1261    main_menu = Menu("<main>", "<main>",
1262                     [Menu("file", _("&File"),
1263                           ["new_session", "open_session", None,
1264                            "save_session", "save_session_as", None,
1265                            "database_management", None,
1266                            "toggle_session_tree", None,
1267                            "exit"]),
1268                      Menu("map", _("&Map"), map_menu),
1269                      Menu("layer", _("&Layer"),
1270                           ["layer_rename", "layer_duplicate",
1271                          None,                          None,
1272                          "layer_raise", "layer_lower",                          "layer_raise", "layer_lower",
1273                          None,                          None,
1274                          "layer_show", "layer_hide",                          "layer_show", "layer_hide",
1275                          None,                          None,
1276                          "layer_show_table"]),                          "layer_projection",
1277                    Menu("help", "&Help",                          None,
1278                            "layer_show_table",
1279                            "layer_jointable",
1280                            "layer_unjointable",
1281                            None,
1282                            "layer_properties"]),
1283                      Menu("table", _("&Table"),
1284                           ["table_open", "table_close", "table_rename",
1285                           None,
1286                           "table_show",
1287                           None,
1288                           "table_join"]),
1289                      Menu("help", _("&Help"),
1290                         ["help_about"])])                         ["help_about"])])
1291    
1292  # the main toolbar  # the main toolbar
1293    
1294  main_toolbar = Menu("<toolbar>", "<toolbar>",  main_toolbar = Menu("<toolbar>", "<toolbar>",
1295                      ["map_zoom_in_tool", "map_zoom_out_tool", "map_pan_tool",                      ["map_zoom_in_tool", "map_zoom_out_tool", "map_pan_tool",
1296                       "map_full_extent", None,                       "map_full_extent",
1297                         "layer_full_extent",
1298                         "selected_full_extent",
1299                         None,
1300                       "map_identify_tool", "map_label_tool"])                       "map_identify_tool", "map_label_tool"])
1301    
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