/[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 2017 by bh, Wed Dec 3 18:43:03 2003 UTC
# Line 1  Line 1 
1  # Copyright (C) 2001, 2002 by Intevation GmbH  # Copyright (C) 2001, 2002, 2003 by Intevation GmbH
2  # Authors:  # Authors:
3  # Jan-Oliver Wagner <[email protected]>  # Jan-Oliver Wagner <[email protected]>
4  # Bernhard Herzog <[email protected]>  # Bernhard Herzog <[email protected]>
5    # Frank Koormann <[email protected]>
6  #  #
7  # This program is free software under the GPL (>=v2)  # This program is free software under the GPL (>=v2)
8  # Read the file COPYING coming with Thuban for details.  # Read the file COPYING coming with Thuban for details.
# Line 11  The main window Line 12  The main window
12  """  """
13    
14  __version__ = "$Revision$"  __version__ = "$Revision$"
15    # $Source$
16    # $Id$
17    
18  import os  import os
19    import copy
20    
21  from wxPython.wx import *  from wxPython.wx import *
22    
23  import Thuban  import Thuban
24    
25    from Thuban import _
26    from Thuban.Model.messages import TITLE_CHANGED
27  from Thuban.Model.session import create_empty_session  from Thuban.Model.session import create_empty_session
28  from Thuban.Model.layer import Layer  from Thuban.Model.layer import Layer, RasterLayer
29  from Thuban.Model.color import Color  from Thuban.Model.postgisdb import PostGISShapeStore, has_postgis_support
30  from Thuban.Model.proj import Projection  # XXX: replace this by
31    # from wxPython.lib.dialogs import wxMultipleChoiceDialog
32    # when Thuban does not support wxPython 2.4.0 any more.
33    from Thuban.UI.multiplechoicedialog import wxMultipleChoiceDialog
34    
35  import view  import view
36  import tree  import tree
 import proj4dialog  
37  import tableview, identifyview  import tableview, identifyview
38    from Thuban.UI.classifier import Classifier
39    import legend
40  from menu import Menu  from menu import Menu
41    
42  from context import Context  from context import Context
43  from command import registry, Command  from command import registry, Command, ToolCommand
44  from messages import SELECTED_SHAPE, VIEW_POSITION  from messages import LAYER_SELECTED, SHAPES_SELECTED, VIEW_POSITION, \
45         MAP_REPLACED
46    from about import About
47  # the directory where the toolbar icons are stored  
48  bitmapdir = os.path.join(Thuban.__path__[0], os.pardir, "Resources", "Bitmaps")  from Thuban.UI.dock import DockFrame
49  bitmapext = ".xpm"  from Thuban.UI.join import JoinDialog
50    from Thuban.UI.dbdialog import DBFrame, DBDialog, ChooseDBTableDialog
51    import resource
52  class MainWindow(wxFrame):  import Thuban.Model.resource
53    
54    import projdialog
55    
56    
57    class MainWindow(DockFrame):
58    
59        # Some messages that can be subscribed/unsubscribed directly through
60        # the MapCanvas come in fact from other objects. This is a map to
61        # map those messages to the names of the instance variables they
62        # actually come from. This delegation is implemented in the
63        # Subscribe and unsubscribed methods
64        delegated_messages = {LAYER_SELECTED: "canvas",
65                              SHAPES_SELECTED: "canvas",
66                              MAP_REPLACED: "canvas"}
67    
68        # Methods delegated to some instance variables. The delegation is
69        # implemented in the __getattr__ method.
70        delegated_methods = {"SelectLayer": "canvas",
71                             "SelectShapes": "canvas",
72                             "SelectedLayer": "canvas",
73                             "SelectedShapes": "canvas",
74                             }
75    
76      def __init__(self, parent, ID, title, application, interactor,      def __init__(self, parent, ID, title, application, interactor,
77                   initial_message = None, size = wxSize(-1, -1)):                   initial_message = None, size = wxSize(-1, -1)):
78          wxFrame.__init__(self, parent, ID, title, wxDefaultPosition, size)          DockFrame.__init__(self, parent, ID, title, wxDefaultPosition, size)
79            #wxFrame.__init__(self, parent, ID, title, wxDefaultPosition, size)
80    
81          self.application = application          self.application = application
         self.interactor = interactor  
82    
83          self.CreateStatusBar()          self.CreateStatusBar()
84          if initial_message:          if initial_message:
# Line 63  class MainWindow(wxFrame): Line 96  class MainWindow(wxFrame):
96          # call Realize to make sure that the tools appear.          # call Realize to make sure that the tools appear.
97          toolbar.Realize()          toolbar.Realize()
98    
99    
100          # Create the map canvas          # Create the map canvas
101          canvas = view.MapCanvas(self, -1, interactor)          canvas = view.MapCanvas(self, -1)
102          canvas.Subscribe(VIEW_POSITION, self.view_position_changed)          canvas.Subscribe(VIEW_POSITION, self.view_position_changed)
103            canvas.Subscribe(SHAPES_SELECTED, self.identify_view_on_demand)
104          self.canvas = canvas          self.canvas = canvas
105            self.canvas.Subscribe(TITLE_CHANGED, self.title_changed)
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                try:
138                    object.Unsubscribe(channel, *args)
139                except wxPyDeadObjectError:
140                    # The object was a wxObject and has already been
141                    # destroyed. Hopefully it has unsubscribed all its
142                    # subscribers already so that it's OK if we do nothing
143                    # here
144                    pass
145    
146        def __getattr__(self, attr):
147            """If attr is one of the delegated methods return that method
148    
149            Otherwise raise AttributeError.
150            """
151            if attr in self.delegated_methods:
152                return getattr(getattr(self, self.delegated_methods[attr]), attr)
153            raise AttributeError(attr)
154    
155      def init_ids(self):      def init_ids(self):
156          """Initialize the ids"""          """Initialize the ids"""
157          self.current_id = 6000          self.current_id = 6000
# Line 112  class MainWindow(wxFrame): Line 190  class MainWindow(wxFrame):
190          return menu_bar          return menu_bar
191    
192      def build_menu(self, menudesc):      def build_menu(self, menudesc):
193          """Build and return a wxMenu from a menudescription"""          """Return a wxMenu built from the menu description menudesc"""
194          wxmenu = wxMenu()          wxmenu = wxMenu()
195          last = None          last = None
196          for item in menudesc.items:          for item in menudesc.items:
             # here the items must all be Menu instances themselves  
197              if item is None:              if item is None:
198                  # a separator. Only add one if the last item was not a                  # a separator. Only add one if the last item was not a
199                  # separator                  # separator
# Line 169  class MainWindow(wxFrame): Line 246  class MainWindow(wxFrame):
246                              command.IsCheckCommand())                              command.IsCheckCommand())
247                  self.bind_command_events(command, ID)                  self.bind_command_events(command, ID)
248              else:              else:
249                  print "Unknown command %s" % name                  print _("Unknown command %s") % name
250    
251      def add_toolbar_command(self, toolbar, name):      def add_toolbar_command(self, toolbar, name):
252          """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 261  class MainWindow(wxFrame):
261              command = registry.Command(name)              command = registry.Command(name)
262              if command is not None:              if command is not None:
263                  ID = self.get_id(name)                  ID = self.get_id(name)
264                  filename = os.path.join(bitmapdir, command.Icon()) + bitmapext                  bitmap = resource.GetBitmapResource(command.Icon(),
265                  bitmap = wxBitmap(filename, wxBITMAP_TYPE_XPM)                                                      wxBITMAP_TYPE_XPM)
266                  toolbar.AddTool(ID, bitmap,                  toolbar.AddTool(ID, bitmap,
267                                  shortHelpString = command.HelpText(),                                  shortHelpString = command.HelpText(),
268                                  isToggle = command.IsCheckCommand())                                  isToggle = command.IsCheckCommand())
269                  self.bind_command_events(command, ID)                  self.bind_command_events(command, ID)
270              else:              else:
271                  print "Unknown command %s" % name                  print _("Unknown command %s") % name
272    
273      def Context(self):      def Context(self):
274          """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 281  class MainWindow(wxFrame):
281              command = registry.Command(name)              command = registry.Command(name)
282              command.Execute(self.Context())              command.Execute(self.Context())
283          else:          else:
284              print "Unknown command ID %d" % event.GetId()              print _("Unknown command ID %d") % event.GetId()
285    
286      def update_command_ui(self, event):      def update_command_ui(self, event):
287          #print "update_command_ui", self.id_to_name[event.GetId()]          #print "update_command_ui", self.id_to_name[event.GetId()]
288          context = self.Context()          context = self.Context()
289          command = registry.Command(self.id_to_name[event.GetId()])          command = registry.Command(self.id_to_name[event.GetId()])
290          if command is not None:          if command is not None:
291              event.Enable(command.Sensitive(context))              sensitive = command.Sensitive(context)
292                event.Enable(sensitive)
293                if command.IsTool() and not sensitive and command.Checked(context):
294                    # When a checked tool command is disabled deselect all
295                    # tools. Otherwise the tool would remain active but it
296                    # might lead to errors if the tools stays active. This
297                    # problem occurred in GREAT-ER and this fixes it, but
298                    # it's not clear to me whether this is really the best
299                    # way to do it (BH, 20021206).
300                    self.canvas.SelectTool(None)
301              event.SetText(command.DynText(context))              event.SetText(command.DynText(context))
302              if command.IsCheckCommand():              if command.IsCheckCommand():
303                  event.Check(command.Checked(context))                      event.Check(command.Checked(context))
304    
305      def RunMessageBox(self, title, text, flags = wxOK | wxICON_INFORMATION):      def RunMessageBox(self, title, text, flags = wxOK | wxICON_INFORMATION):
306          """Run a modal message box with the given text, title and flags          """Run a modal message box with the given text, title and flags
307          and return the result"""          and return the result"""
308          dlg = wxMessageDialog(self, text, title, flags)          dlg = wxMessageDialog(self, text, title, flags)
309            dlg.CenterOnParent()
310          result = dlg.ShowModal()          result = dlg.ShowModal()
311          dlg.Destroy()          dlg.Destroy()
312          return result          return result
# Line 233  class MainWindow(wxFrame): Line 320  class MainWindow(wxFrame):
320    
321      def add_dialog(self, name, dialog):      def add_dialog(self, name, dialog):
322          if self.dialogs.has_key(name):          if self.dialogs.has_key(name):
323              raise RuntimeError("The Dialog named %s is already open" % name)              raise RuntimeError(_("The Dialog named %s is already open") % name)
324          self.dialogs[name] = dialog          self.dialogs[name] = dialog
325    
326      def dialog_open(self, name):      def dialog_open(self, name):
# Line 251  class MainWindow(wxFrame): Line 338  class MainWindow(wxFrame):
338              text = "(%10.10g, %10.10g)" % pos              text = "(%10.10g, %10.10g)" % pos
339          else:          else:
340              text = ""              text = ""
341            self.set_position_text(text)
342    
343        def set_position_text(self, text):
344            """Set the statusbar text showing the current position.
345    
346            By default the text is shown in field 0 of the status bar.
347            Override this method in derived classes to put it into a
348            different field of the statusbar.
349            """
350          self.SetStatusText(text)          self.SetStatusText(text)
351    
352      def save_modified_session(self, can_veto = 1):      def save_modified_session(self, can_veto = 1):
# Line 266  class MainWindow(wxFrame): Line 362  class MainWindow(wxFrame):
362              flags = wxYES_NO | wxICON_QUESTION              flags = wxYES_NO | wxICON_QUESTION
363              if can_veto:              if can_veto:
364                  flags = flags | wxCANCEL                  flags = flags | wxCANCEL
365              result = self.RunMessageBox("Exit",              result = self.RunMessageBox(_("Exit"),
366                                          ("The session has been modified."                                          _("The session has been modified."
367                                           " Do you want to save it?"),                                           " Do you want to save it?"),
368                                          flags)                                          flags)
369              if result == wxID_YES:              if result == wxID_YES:
# Line 277  class MainWindow(wxFrame): Line 373  class MainWindow(wxFrame):
373          return result          return result
374    
375      def NewSession(self):      def NewSession(self):
376          self.save_modified_session()          if self.save_modified_session() != wxID_CANCEL:
377          self.application.SetSession(create_empty_session())              self.application.SetSession(create_empty_session())
378    
379      def OpenSession(self):      def OpenSession(self):
380          self.save_modified_session()          if self.save_modified_session() != wxID_CANCEL:
381          dlg = wxFileDialog(self, "Select a session file", ".", "",              dlg = wxFileDialog(self, _("Open Session"), ".", "",
382                             "*.thuban", wxOPEN)                                 "Thuban Session File (*.thuban)|*.thuban",
383          if dlg.ShowModal() == wxID_OK:                                 wxOPEN)
384              self.application.OpenSession(dlg.GetPath())              if dlg.ShowModal() == wxID_OK:
385          dlg.Destroy()                  self.application.OpenSession(dlg.GetPath(),
386                                                 self.run_db_param_dialog)
387                dlg.Destroy()
388    
389        def run_db_param_dialog(self, parameters, message):
390            dlg = DBDialog(self, _("DB Connection Parameters"), parameters,
391                           message)
392            return dlg.RunDialog()
393    
394      def SaveSession(self):      def SaveSession(self):
395          if self.application.session.filename == None:          if self.application.session.filename == None:
396              self.SaveSessionAs()              self.SaveSessionAs()
397          self.application.SaveSession()          else:
398                self.application.SaveSession()
399    
400      def SaveSessionAs(self):      def SaveSessionAs(self):
401          dlg = wxFileDialog(self, "Enter a filename for session", ".", "",          dlg = wxFileDialog(self, _("Save Session As"), ".", "",
402                             "*.thuban", wxOPEN)                             "Thuban Session File (*.thuban)|*.thuban",
403                               wxSAVE|wxOVERWRITE_PROMPT)
404          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wxID_OK:
405              self.application.session.SetFilename(dlg.GetPath())              self.application.session.SetFilename(dlg.GetPath())
406              self.application.SaveSession()              self.application.SaveSession()
407          dlg.Destroy()          dlg.Destroy()
408    
409      def Exit(self):      def Exit(self):
410          self.Close(false)          self.Close(False)
411    
412      def OnClose(self, event):      def OnClose(self, event):
413          result = self.save_modified_session(can_veto = event.CanVeto())          result = self.save_modified_session(can_veto = event.CanVeto())
# Line 313  class MainWindow(wxFrame): Line 418  class MainWindow(wxFrame):
418              # wx's destroy event, but that isn't implemented for wxGTK              # wx's destroy event, but that isn't implemented for wxGTK
419              # yet.              # yet.
420              self.canvas.Unsubscribe(VIEW_POSITION, self.view_position_changed)              self.canvas.Unsubscribe(VIEW_POSITION, self.view_position_changed)
421                DockFrame.OnClose(self, event)
422                for dlg in self.dialogs.values():
423                    dlg.Destroy()
424                self.canvas.Destroy()
425              self.Destroy()              self.Destroy()
426    
427      def SetMap(self, map):      def SetMap(self, map):
428          self.canvas.SetMap(map)          self.canvas.SetMap(map)
429            self.update_title()
430    
431            dialog = self.FindRegisteredDock("legend")
432            if dialog is not None:
433                dialog.GetPanel().SetMap(self.Map())
434    
435      def Map(self):      def Map(self):
436          """Return the map displayed by this mainwindow"""          """Return the map displayed by this mainwindow"""
437    
438          return self.canvas.Map()          return self.canvas.Map()
439    
440      def ShowSessionTree(self):      def ToggleSessionTree(self):
441            """If the session tree is shown close it otherwise create a new tree"""
442          name = "session_tree"          name = "session_tree"
443          dialog = self.get_open_dialog(name)          dialog = self.get_open_dialog(name)
444          if dialog is None:          if dialog is None:
445              dialog = tree.SessionTreeView(self, self.application, name)              dialog = tree.SessionTreeView(self, self.application, name)
446              self.add_dialog(name, dialog)              self.add_dialog(name, dialog)
447              dialog.Show(true)              dialog.Show(True)
448          else:          else:
449              # FIXME: bring dialog to front here              dialog.Close()
450              pass  
451        def SessionTreeShown(self):
452            """Return true iff the session tree is currently shown"""
453            return self.get_open_dialog("session_tree") is not None
454    
455      def About(self):      def About(self):
456          self.RunMessageBox("About",          dlg = About(self)
457                             ("Thuban is a program for\n"          dlg.ShowModal()
458                              "exploring geographic data.\n"          dlg.Destroy()
459                              "Copyright (C) 2001 Intevation GmbH.\n"  
460                              "Thuban is licensed under the GPL"),      def DatabaseManagement(self):
461                             wxOK | wxICON_INFORMATION)          name = "dbmanagement"
462            dialog = self.get_open_dialog(name)
463            if dialog is None:
464                map = self.canvas.Map()
465                dialog = DBFrame(self, name, self.application.Session())
466                self.add_dialog(name, dialog)
467                dialog.Show()
468            dialog.Raise()
469    
470      def AddLayer(self):      def AddLayer(self):
471          dlg = wxFileDialog(self, "Select a data file", ".", "", "*.*",          dlg = wxFileDialog(self, _("Select one or more data files"), ".", "",
472                               _("Shapefiles (*.shp)") + "|*.shp;*.SHP|" +
473                               _("All Files (*.*)") + "|*.*",
474                               wxOPEN | wxMULTIPLE)
475            if dlg.ShowModal() == wxID_OK:
476                filenames = dlg.GetPaths()
477                for filename in filenames:
478                    title = os.path.splitext(os.path.basename(filename))[0]
479                    map = self.canvas.Map()
480                    has_layers = map.HasLayers()
481                    try:
482                        store = self.application.Session().OpenShapefile(filename)
483                    except IOError:
484                        # the layer couldn't be opened
485                        self.RunMessageBox(_("Add Layer"),
486                                           _("Can't open the file '%s'.")%filename)
487                    else:
488                        layer = Layer(title, store)
489                        map.AddLayer(layer)
490                        if not has_layers:
491                            # if we're adding a layer to an empty map, fit the
492                            # new map to the window
493                            self.canvas.FitMapToWindow()
494            dlg.Destroy()
495    
496        def AddRasterLayer(self):
497            dlg = wxFileDialog(self, _("Select an image file"), ".", "", "*.*",
498                             wxOPEN)                             wxOPEN)
499          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wxID_OK:
500              filename = dlg.GetPath()              filename = dlg.GetPath()
501              title = os.path.splitext(os.path.basename(filename))[0]              title = os.path.splitext(os.path.basename(filename))[0]
             layer = Layer(title, filename)  
502              map = self.canvas.Map()              map = self.canvas.Map()
503              has_layers = map.HasLayers()              has_layers = map.HasLayers()
504              try:              try:
505                  map.AddLayer(layer)                  layer = RasterLayer(title, filename)
506              except IOError:              except IOError:
507                  # the layer couldn't be opened                  # the layer couldn't be opened
508                  self.RunMessageBox("Add Layer",                  self.RunMessageBox(_("Add Image Layer"),
509                                     "Can't open the file '%s'." % filename)                                     _("Can't open the file '%s'.") % filename)
510              else:              else:
511                    map.AddLayer(layer)
512                  if not has_layers:                  if not has_layers:
513                      # if we're adding a layer to an empty map, for the                      # if we're adding a layer to an empty map, fit the
514                      # new map to the window                      # new map to the window
515                      self.canvas.FitMapToWindow()                      self.canvas.FitMapToWindow()
516          dlg.Destroy()          dlg.Destroy()
517    
518        def AddDBLayer(self):
519            """Add a layer read from a database"""
520            session = self.application.Session()
521            dlg = ChooseDBTableDialog(self, self.application.Session())
522    
523            if dlg.ShowModal() == wxID_OK:
524                dbconn, dbtable = dlg.GetTable()
525                try:
526                    title = str(dbtable)
527    
528                    # Chose the correct Interface for the database type
529                    store = PostGISShapeStore(dbconn, dbtable)
530                    session.AddShapeStore(store)
531                    layer = Layer(title, store)
532                except:
533                    # Some error occured while initializing the layer
534                    self.RunMessageBox(_("Add Layer from database"),
535                                       _("Can't open the database table '%s'")
536                                       % dbtable)
537    
538                map = self.canvas.Map()
539    
540                has_layers = map.HasLayers()
541                map.AddLayer(layer)
542                if not has_layers:
543                    self.canvas.FitMapToWindow()
544    
545            dlg.Destroy()
546    
547      def RemoveLayer(self):      def RemoveLayer(self):
548          layer = self.current_layer()          layer = self.current_layer()
549          if layer is not None:          if layer is not None:
# Line 371  class MainWindow(wxFrame): Line 552  class MainWindow(wxFrame):
552      def CanRemoveLayer(self):      def CanRemoveLayer(self):
553          """Return true if the currently selected layer can be deleted.          """Return true if the currently selected layer can be deleted.
554    
555          If no layer is selected return false.          If no layer is selected return False.
556    
557          The return value of this method determines whether the remove          The return value of this method determines whether the remove
558          layer command is sensitive in menu.          layer command is sensitive in menu.
# Line 379  class MainWindow(wxFrame): Line 560  class MainWindow(wxFrame):
560          layer = self.current_layer()          layer = self.current_layer()
561          if layer is not None:          if layer is not None:
562              return self.canvas.Map().CanRemoveLayer(layer)              return self.canvas.Map().CanRemoveLayer(layer)
563          return 0          return False
564    
565      def RaiseLayer(self):      def RaiseLayer(self):
566          layer = self.current_layer()          layer = self.current_layer()
# Line 396  class MainWindow(wxFrame): Line 577  class MainWindow(wxFrame):
577    
578          If no layer is selected, return None          If no layer is selected, return None
579          """          """
580          return self.interactor.SelectedLayer()          return self.canvas.SelectedLayer()
581    
582      def has_selected_layer(self):      def has_selected_layer(self):
583          """Return true if a layer is currently selected"""          """Return true if a layer is currently selected"""
584          return self.interactor.HasSelectedLayer()          return self.canvas.HasSelectedLayer()
   
     def choose_color(self):  
         """Run the color selection dialog and return the selected color.  
   
         If the user cancels, return None.  
         """  
         dlg = wxColourDialog(self)  
         color = None  
         if dlg.ShowModal() == wxID_OK:  
             data = dlg.GetColourData()  
             wxc = data.GetColour()  
             color = Color(wxc.Red() / 255.0,  
                           wxc.Green() / 255.0,  
                           wxc.Blue() / 255.0)  
         dlg.Destroy()  
         return color  
585    
586      def LayerFillColor(self):      def has_selected_shapes(self):
587          layer = self.current_layer()          """Return true if a shape is currently selected"""
588          if layer is not None:          return self.canvas.HasSelectedShapes()
             color = self.choose_color()  
             if color is not None:  
                 layer.SetFill(color)  
589    
590      def LayerTransparentFill(self):      def HideLayer(self):
591          layer = self.current_layer()          layer = self.current_layer()
592          if layer is not None:          if layer is not None:
593              layer.SetFill(None)              layer.SetVisible(0)
594    
595      def LayerOutlineColor(self):      def ShowLayer(self):
596          layer = self.current_layer()          layer = self.current_layer()
597          if layer is not None:          if layer is not None:
598              color = self.choose_color()              layer.SetVisible(1)
             if color is not None:  
                 layer.SetStroke(color)  
599    
600      def LayerNoOutline(self):      def DuplicateLayer(self):
601            """Ceate a new layer above the selected layer with the same shapestore
602            """
603          layer = self.current_layer()          layer = self.current_layer()
604          if layer is not None:          if layer is not None and hasattr(layer, "ShapeStore"):
605              layer.SetStroke(None)              new_layer = Layer(_("Copy of `%s'") % layer.Title(),
606                                  layer.ShapeStore(),
607                                  projection = layer.GetProjection())
608                new_classification = copy.deepcopy(layer.GetClassification())
609                new_layer.SetClassification(new_classification)
610                self.Map().AddLayer(new_layer)
611    
612      def HideLayer(self):      def CanDuplicateLayer(self):
613          layer = self.current_layer()          """Return whether the DuplicateLayer method can create a duplicate"""
         if layer is not None:  
             layer.SetVisible(0)  
           
     def ShowLayer(self):  
614          layer = self.current_layer()          layer = self.current_layer()
615          if layer is not None:          return layer is not None and hasattr(layer, "ShapeStore")
             layer.SetVisible(1)  
616    
617      def LayerShowTable(self):      def LayerShowTable(self):
618          layer = self.current_layer()          layer = self.current_layer()
619          if layer is not None:          if layer is not None:
620              table = layer.table              table = layer.ShapeStore().Table()
621              name = "table_view" + str(id(table))              name = "table_view" + str(id(table))
622              dialog = self.get_open_dialog(name)              dialog = self.get_open_dialog(name)
623              if dialog is None:              if dialog is None:
624                  dialog = tableview.LayerTableFrame(self, self.interactor, name,                  dialog = tableview.LayerTableFrame(self, name,
625                                                     "Table: %s" % layer.Title(),                                           _("Layer Table: %s") % layer.Title(),
626                                                     layer, table)                                           layer, table)
627                  self.add_dialog(name, dialog)                  self.add_dialog(name, dialog)
628                  dialog.Show(true)                  dialog.Show(True)
629              else:              else:
630                  # FIXME: bring dialog to front here                  # FIXME: bring dialog to front here
631                  pass                  pass
632    
633      def Projection(self):      def MapProjection(self):
634          map = self.canvas.Map()  
635          proj = map.projection          name = "map_projection"
636          if proj is None:          dialog = self.get_open_dialog(name)
637              proj4Dlg = proj4dialog.Proj4Dialog(NULL, None, map.BoundingBox())  
638          else:          if dialog is None:
639              proj4Dlg = proj4dialog.Proj4Dialog(NULL, map.projection.params,              map = self.canvas.Map()
640                                                 map.BoundingBox())              dialog = projdialog.ProjFrame(self, name,
641          if proj4Dlg.ShowModal() == wxID_OK:                       _("Map Projection: %s") % map.Title(), map)
642              params = proj4Dlg.GetParams()              self.add_dialog(name, dialog)
643              if params is not None:              dialog.Show()
644                  proj = Projection(params)          dialog.Raise()
645    
646        def LayerProjection(self):
647    
648            layer = self.current_layer()
649    
650            name = "layer_projection" + str(id(layer))
651            dialog = self.get_open_dialog(name)
652    
653            if dialog is None:
654                map = self.canvas.Map()
655                dialog = projdialog.ProjFrame(self, name,
656                         _("Layer Projection: %s") % layer.Title(), layer)
657                self.add_dialog(name, dialog)
658                dialog.Show()
659            dialog.Raise()
660    
661        def LayerEditProperties(self):
662    
663            #
664            # the menu option for this should only be available if there
665            # is a current layer, so we don't need to check if the
666            # current layer is None
667            #
668    
669            layer = self.current_layer()
670            self.OpenLayerProperties(layer)
671    
672        def OpenLayerProperties(self, layer, group = None):
673            name = "layer_properties" + str(id(layer))
674            dialog = self.get_open_dialog(name)
675    
676            if dialog is None:
677                dialog = Classifier(self, name, self.Map(), layer, group)
678                self.add_dialog(name, dialog)
679                dialog.Show()
680            dialog.Raise()
681    
682        def LayerJoinTable(self):
683            layer = self.canvas.SelectedLayer()
684            if layer is not None:
685                dlg = JoinDialog(self, _("Join Layer with Table"),
686                                 self.application.session,
687                                 layer = layer)
688                dlg.ShowModal()
689    
690        def LayerUnjoinTable(self):
691            layer = self.canvas.SelectedLayer()
692            if layer is not None:
693                orig_store = layer.ShapeStore().OrigShapeStore()
694                if orig_store:
695                    layer.SetShapeStore(orig_store)
696    
697        def ShowLegend(self):
698            if not self.LegendShown():
699                self.ToggleLegend()
700    
701        def ToggleLegend(self):
702            """Show the legend if it's not shown otherwise hide it again"""
703            name = "legend"
704            dialog = self.FindRegisteredDock(name)
705    
706            if dialog is None:
707                dialog = self.CreateDock(name, -1, _("Legend"), wxLAYOUT_LEFT)
708                legend.LegendPanel(dialog, None, self)
709                dialog.Dock()
710                dialog.GetPanel().SetMap(self.Map())
711                dialog.Show()
712            else:
713                dialog.Show(not dialog.IsShown())
714    
715        def LegendShown(self):
716            """Return true iff the legend is currently open"""
717            dialog = self.FindRegisteredDock("legend")
718            return dialog is not None and dialog.IsShown()
719    
720        def TableOpen(self):
721            dlg = wxFileDialog(self, _("Open Table"), ".", "",
722                               _("DBF Files (*.dbf)") + "|*.dbf|" +
723                               #_("CSV Files (*.csv)") + "|*.csv|" +
724                               _("All Files (*.*)") + "|*.*",
725                               wxOPEN)
726            if dlg.ShowModal() == wxID_OK:
727                filename = dlg.GetPath()
728                dlg.Destroy()
729                try:
730                    table = self.application.session.OpenTableFile(filename)
731                except IOError:
732                    # the layer couldn't be opened
733                    self.RunMessageBox(_("Open Table"),
734                                       _("Can't open the file '%s'.") % filename)
735              else:              else:
736                  proj = None                  self.ShowTableView(table)
737              map.SetProjection(proj)  
738          proj4Dlg.Destroy()      def TableClose(self):
739            tables = self.application.session.UnreferencedTables()
740    
741            lst = [(t.Title(), t) for t in tables]
742            lst.sort()
743            titles = [i[0] for i in lst]
744            dlg = wxMultipleChoiceDialog(self, _("Pick the tables to close:"),
745                                         _("Close Table"), titles,
746                                         size = (400, 300),
747                                         style = wxDEFAULT_DIALOG_STYLE |
748                                                 wxRESIZE_BORDER)
749            if dlg.ShowModal() == wxID_OK:
750                for i in dlg.GetValue():
751                    self.application.session.RemoveTable(lst[i][1])
752    
753    
754        def TableShow(self):
755            """Offer a multi-selection dialog for tables to be displayed
756    
757            The windows for the selected tables are opened or brought to
758            the front.
759            """
760            tables = self.application.session.Tables()
761    
762            lst = [(t.Title(), t) for t in tables]
763            lst.sort()
764            titles = [i[0] for i in lst]
765            dlg = wxMultipleChoiceDialog(self, _("Pick the table to show:"),
766                                         _("Show Table"), titles,
767                                         size = (400,300),
768                                         style = wxDEFAULT_DIALOG_STYLE |
769                                                 wxRESIZE_BORDER)
770            if (dlg.ShowModal() == wxID_OK):
771                for i in dlg.GetValue():
772                    # XXX: if the table belongs to a layer, open a
773                    # LayerTableFrame instead of QueryTableFrame
774                    self.ShowTableView(lst[i][1])
775    
776        def TableJoin(self):
777            dlg = JoinDialog(self, _("Join Tables"), self.application.session)
778            dlg.ShowModal()
779    
780        def ShowTableView(self, table):
781            """Open a table view for the table and optionally"""
782            name = "table_view%d" % id(table)
783            dialog = self.get_open_dialog(name)
784            if dialog is None:
785                dialog = tableview.QueryTableFrame(self, name,
786                                                   _("Table: %s") % table.Title(),
787                                                   table)
788                self.add_dialog(name, dialog)
789                dialog.Show(True)
790            dialog.Raise()
791    
792        def TableRename(self):
793            """Let the user rename a table"""
794    
795            # First, let the user select a table
796            tables = self.application.session.Tables()
797            lst = [(t.Title(), t) for t in tables]
798            lst.sort()
799            titles = [i[0] for i in lst]
800            dlg = wxMultipleChoiceDialog(self, _("Pick the table to rename:"),
801                                         _("Rename Table"), titles,
802                                         size = (400,300),
803                                         style = wxDEFAULT_DIALOG_STYLE |
804                                                 wxRESIZE_BORDER)
805            if (dlg.ShowModal() == wxID_OK):
806                to_rename = [lst[i][1] for i in dlg.GetValue()]
807                dlg.Destroy()
808            else:
809                to_rename = []
810    
811            # Second, let the user rename the layers
812            for table in to_rename:
813                dlg = wxTextEntryDialog(self, "Table Title: ", "Rename Table",
814                                        table.Title())
815                try:
816                    if dlg.ShowModal() == wxID_OK:
817                        title = dlg.GetValue()
818                        if title != "":
819                            table.SetTitle(title)
820    
821                            # Make sure the session is marked as modified.
822                            # FIXME: This should be handled automatically,
823                            # but that requires more changes to the tables
824                            # than I have time for currently.
825                            self.application.session.changed()
826                finally:
827                    dlg.Destroy()
828    
829    
830      def ZoomInTool(self):      def ZoomInTool(self):
831          self.canvas.ZoomInTool()          self.canvas.ZoomInTool()
# Line 504  class MainWindow(wxFrame): Line 846  class MainWindow(wxFrame):
846      def FullExtent(self):      def FullExtent(self):
847          self.canvas.FitMapToWindow()          self.canvas.FitMapToWindow()
848    
849        def FullLayerExtent(self):
850            self.canvas.FitLayerToWindow(self.current_layer())
851    
852        def FullSelectionExtent(self):
853            self.canvas.FitSelectedToWindow()
854    
855        def ExportMap(self):
856            self.canvas.Export()
857    
858      def PrintMap(self):      def PrintMap(self):
859          self.canvas.Print()          self.canvas.Print()
860    
861      def identify_view_on_demand(self, layer, shape):      def RenameMap(self):
862            dlg = wxTextEntryDialog(self, "Map Title: ", "Rename Map",
863                                    self.Map().Title())
864            if dlg.ShowModal() == wxID_OK:
865                title = dlg.GetValue()
866                if title != "":
867                    self.Map().SetTitle(title)
868    
869            dlg.Destroy()
870    
871        def RenameLayer(self):
872            """Let the user rename the currently selected layer"""
873            layer = self.current_layer()
874            if layer is not None:
875                dlg = wxTextEntryDialog(self, "Layer Title: ", "Rename Layer",
876                                        layer.Title())
877                try:
878                    if dlg.ShowModal() == wxID_OK:
879                        title = dlg.GetValue()
880                        if title != "":
881                            layer.SetTitle(title)
882                finally:
883                    dlg.Destroy()
884    
885        def identify_view_on_demand(self, layer, shapes):
886            """Subscribed to the canvas' SHAPES_SELECTED message
887    
888            If the current tool is the identify tool, at least one shape is
889            selected and the identify dialog is not shown, show the dialog.
890            """
891            # If the selection has become empty we don't need to do
892            # anything. Otherwise it could happen that the dialog was popped
893            # up when the selection became empty, e.g. when a new selection
894            # is opened while the identify tool is active and dialog had
895            # been closed
896            if not shapes:
897                return
898    
899          name = "identify_view"          name = "identify_view"
900          if self.canvas.CurrentTool() == "IdentifyTool":          if self.canvas.CurrentTool() == "IdentifyTool":
901              if not self.dialog_open(name):              if not self.dialog_open(name):
902                  dialog = identifyview.IdentifyView(self, self.interactor, name)                  dialog = identifyview.IdentifyView(self, name)
903                  self.add_dialog(name, dialog)                  self.add_dialog(name, dialog)
904                  dialog.Show(true)                  dialog.Show(True)
905              else:              else:
906                  # FIXME: bring dialog to front?                  # FIXME: bring dialog to front?
907                  pass                  pass
908    
909        def title_changed(self, map):
910            """Subscribed to the canvas' TITLE_CHANGED messages"""
911            self.update_title()
912    
913        def update_title(self):
914            """Update the window's title according to it's current state.
915    
916            In this default implementation the title is 'Thuban - ' followed
917            by the map's title or simply 'Thuban' if there is not map.
918            Derived classes should override this method to get different
919            titles.
920    
921            This method is called automatically by other methods when the
922            title may have to change. For the methods implemented in this
923            class this usually only means that a different map has been set
924            or the current map's title has changed.
925            """
926            map = self.Map()
927            if map is not None:
928                title = _("Thuban - %s") % (map.Title(),)
929            else:
930                title = _("Thuban")
931            self.SetTitle(title)
932    
933    
934  #  #
935  # Define all the commands available in the main window  # Define all the commands available in the main window
936  #  #
# Line 529  def call_method(context, methodname, *ar Line 942  def call_method(context, methodname, *ar
942      apply(getattr(context.mainwindow, methodname), args)      apply(getattr(context.mainwindow, methodname), args)
943    
944  def _method_command(name, title, method, helptext = "",  def _method_command(name, title, method, helptext = "",
945                      icon = "", sensitive = None):                      icon = "", sensitive = None, checked = None):
946      """Add a command implemented by a method of the mainwindow object"""      """Add a command implemented by a method of the mainwindow object"""
947      registry.Add(Command(name, title, call_method, args=(method,),      registry.Add(Command(name, title, call_method, args=(method,),
948                           helptext = helptext, icon = icon,                           helptext = helptext, icon = icon,
949                           sensitive = sensitive))                           sensitive = sensitive, checked = checked))
950    
951  def make_check_current_tool(toolname):  def make_check_current_tool(toolname):
952      """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 962  def make_check_current_tool(toolname):
962  def _tool_command(name, title, method, toolname, helptext = "",  def _tool_command(name, title, method, toolname, helptext = "",
963                    icon = "", sensitive = None):                    icon = "", sensitive = None):
964      """Add a tool command"""      """Add a tool command"""
965      registry.Add(Command(name, title, call_method, args=(method,),      registry.Add(ToolCommand(name, title, call_method, args=(method,),
966                           helptext = helptext, icon = icon,                               helptext = helptext, icon = icon,
967                           checked = make_check_current_tool(toolname),                               checked = make_check_current_tool(toolname),
968                           sensitive = sensitive))                               sensitive = sensitive))
969    
970  def _has_selected_layer(context):  def _has_selected_layer(context):
971      """Return true if a layer is selected in the context"""      """Return true if a layer is selected in the context"""
972      return context.mainwindow.has_selected_layer()      return context.mainwindow.has_selected_layer()
973    
974    def _has_selected_shapes(context):
975        """Return true if a layer is selected in the context"""
976        return context.mainwindow.has_selected_shapes()
977    
978  def _can_remove_layer(context):  def _can_remove_layer(context):
979      return context.mainwindow.CanRemoveLayer()      return context.mainwindow.CanRemoveLayer()
980    
981  def _has_tree_window_shown(context):  def _has_tree_window_shown(context):
982      """Return true if the tree window is shown"""      """Return true if the tree window is shown"""
983      return context.mainwindow.get_open_dialog("session_tree") is None      return context.mainwindow.SessionTreeShown()
984    
985  def _has_visible_map(context):  def _has_visible_map(context):
986      """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 993  def _has_visible_map(context):
993                  return 1                  return 1
994      return 0      return 0
995    
996    def _has_legend_shown(context):
997        """Return true if the legend window is shown"""
998        return context.mainwindow.LegendShown()
999    
1000    def _has_gdal_support(context):
1001        """Return True if the GDAL is available"""
1002        return Thuban.Model.resource.has_gdal_support()
1003    
1004    def _has_dbconnections(context):
1005        """Return whether the the session has database connections"""
1006        return context.session.HasDBConnections()
1007    
1008    def _has_postgis_support(context):
1009        return has_postgis_support()
1010    
1011    
1012  # File menu  # File menu
1013  _method_command("new_session", "&New Session", "NewSession")  _method_command("new_session", _("&New Session"), "NewSession",
1014  _method_command("open_session", "&Open Session", "OpenSession")                  helptext = _("Start a new session"))
1015  _method_command("save_session", "&Save Session", "SaveSession")  _method_command("open_session", _("&Open Session..."), "OpenSession",
1016  _method_command("save_session_as", "Save Session &As", "SaveSessionAs")                  helptext = _("Open a session file"))
1017  _method_command("show_session_tree", "Show Session &Tree", "ShowSessionTree",  _method_command("save_session", _("&Save Session"), "SaveSession",
1018                  sensitive = _has_tree_window_shown)                  helptext =_("Save this session to the file it was opened from"))
1019  _method_command("exit", "&Exit", "Exit")  _method_command("save_session_as", _("Save Session &As..."), "SaveSessionAs",
1020                    helptext = _("Save this session to a new file"))
1021    _method_command("toggle_session_tree", _("Session &Tree"), "ToggleSessionTree",
1022                    checked = _has_tree_window_shown,
1023                    helptext = _("Toggle on/off the session tree analysis window"))
1024    _method_command("toggle_legend", _("Legend"), "ToggleLegend",
1025                    checked = _has_legend_shown,
1026                    helptext = _("Toggle Legend on/off"))
1027    _method_command("database_management", _("&Database Connections..."),
1028                    "DatabaseManagement",
1029                    sensitive = _has_postgis_support)
1030    _method_command("exit", _("E&xit"), "Exit",
1031                    helptext = _("Finish working with Thuban"))
1032    
1033  # Help menu  # Help menu
1034  _method_command("help_about", "&About", "About")  _method_command("help_about", _("&About..."), "About",
1035                    helptext = _("Info about Thuban authors, version and modules"))
1036    
1037    
1038  # Map menu  # Map menu
1039  _method_command("map_projection", "Pro&jection", "Projection")  _method_command("map_projection", _("Pro&jection..."), "MapProjection",
1040                    helptext = _("Set or change the map projection"))
1041    
1042  _tool_command("map_zoom_in_tool", "&Zoom in", "ZoomInTool", "ZoomInTool",  _tool_command("map_zoom_in_tool", _("&Zoom in"), "ZoomInTool", "ZoomInTool",
1043                helptext = "Switch to map-mode 'zoom-in'", icon = "zoom_in",                helptext = _("Switch to map-mode 'zoom-in'"), icon = "zoom_in",
1044                sensitive = _has_visible_map)                sensitive = _has_visible_map)
1045  _tool_command("map_zoom_out_tool", "Zoom &out", "ZoomOutTool", "ZoomOutTool",  _tool_command("map_zoom_out_tool", _("Zoom &out"), "ZoomOutTool", "ZoomOutTool",
1046                helptext = "Switch to map-mode 'zoom-out'", icon = "zoom_out",                helptext = _("Switch to map-mode 'zoom-out'"), icon = "zoom_out",
1047                sensitive = _has_visible_map)                sensitive = _has_visible_map)
1048  _tool_command("map_pan_tool", "&Pan", "PanTool", "PanTool",  _tool_command("map_pan_tool", _("&Pan"), "PanTool", "PanTool",
1049                helptext = "Switch to map-mode 'pan'", icon = "pan",                helptext = _("Switch to map-mode 'pan'"), icon = "pan",
1050                sensitive = _has_visible_map)                sensitive = _has_visible_map)
1051  _tool_command("map_identify_tool", "&Identify", "IdentifyTool", "IdentifyTool",  _tool_command("map_identify_tool", _("&Identify"), "IdentifyTool",
1052                helptext = "Switch to map-mode 'identify'", icon = "identify",                "IdentifyTool",
1053                  helptext = _("Switch to map-mode 'identify'"), icon = "identify",
1054                sensitive = _has_visible_map)                sensitive = _has_visible_map)
1055  _tool_command("map_label_tool", "&Label", "LabelTool", "LabelTool",  _tool_command("map_label_tool", _("&Label"), "LabelTool", "LabelTool",
1056                helptext = "Add/Remove labels", icon = "label",                helptext = _("Add/Remove labels"), icon = "label",
1057                sensitive = _has_visible_map)                sensitive = _has_visible_map)
1058  _method_command("map_full_extent", "&Full extent", "FullExtent",  _method_command("map_full_extent", _("&Full extent"), "FullExtent",
1059                 helptext = "Full Extent", icon = "fullextent",                 helptext = _("Zoom to the full map extent"), icon = "fullextent",
1060                sensitive = _has_visible_map)                sensitive = _has_visible_map)
1061  _method_command("map_print", "Prin&t", "PrintMap", helptext = "Print the map")  _method_command("layer_full_extent", _("&Full layer extent"), "FullLayerExtent",
1062                    helptext = _("Zoom to the full layer extent"),
1063                    icon = "fulllayerextent", sensitive = _has_selected_layer)
1064    _method_command("selected_full_extent", _("&Full selection extent"),
1065                    "FullSelectionExtent",
1066                    helptext = _("Zoom to the full selection extent"),
1067                    icon = "fullselextent", sensitive = _has_selected_shapes)
1068    _method_command("map_export", _("E&xport"), "ExportMap",
1069                    helptext = _("Export the map to file"))
1070    _method_command("map_print", _("Prin&t"), "PrintMap",
1071                    helptext = _("Print the map"))
1072    _method_command("map_rename", _("&Rename..."), "RenameMap",
1073                    helptext = _("Rename the map"))
1074    _method_command("layer_add", _("&Add Layer..."), "AddLayer",
1075                    helptext = _("Add a new layer to the map"))
1076    _method_command("rasterlayer_add", _("&Add Image Layer..."), "AddRasterLayer",
1077                    helptext = _("Add a new image layer to the map"),
1078                    sensitive = _has_gdal_support)
1079    _method_command("layer_add_db", _("Add &Database Layer..."), "AddDBLayer",
1080                    helptext = _("Add a new database layer to active map"),
1081                    sensitive = _has_dbconnections)
1082    _method_command("layer_remove", _("&Remove Layer"), "RemoveLayer",
1083                    helptext = _("Remove selected layer"),
1084                    sensitive = _can_remove_layer)
1085    
1086  # Layer menu  # Layer menu
1087  _method_command("layer_add", "&Add Layer", "AddLayer",  _method_command("layer_projection", _("Pro&jection..."), "LayerProjection",
1088                  helptext = "Add a new layer to active map")                  sensitive = _has_selected_layer,
1089  _method_command("layer_remove", "&Remove Layer", "RemoveLayer",                  helptext = _("Specify projection for selected layer"))
1090                  helptext = "Remove selected layer(s)",  _method_command("layer_duplicate", _("&Duplicate"), "DuplicateLayer",
1091                  sensitive = _can_remove_layer)                  helptext = _("Duplicate selected layer"),
1092  _method_command("layer_fill_color", "&Fill Color", "LayerFillColor",            sensitive = lambda context: context.mainwindow.CanDuplicateLayer())
1093                  helptext = "Set the fill color of selected layer(s)",  _method_command("layer_rename", _("Re&name ..."), "RenameLayer",
1094                  sensitive = _has_selected_layer)                  helptext = _("Rename selected layer"),
 _method_command("layer_transparent_fill", "&Transparent Fill",  
                 "LayerTransparentFill",  
                 helptext = "Do not fill the selected layer(s)",  
1095                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1096  _method_command("layer_outline_color", "&Outline Color", "LayerOutlineColor",  _method_command("layer_raise", _("&Raise"), "RaiseLayer",
1097                  helptext = "Set the outline color of selected layer(s)",                  helptext = _("Raise selected layer"),
1098                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1099  _method_command("layer_no_outline", "&No Outline", "LayerNoOutline",  _method_command("layer_lower", _("&Lower"), "LowerLayer",
1100                  helptext = "Do not draw the outline of the selected layer(s)",                  helptext = _("Lower selected layer"),
1101                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1102  _method_command("layer_raise", "&Raise", "RaiseLayer",  _method_command("layer_show", _("&Show"), "ShowLayer",
1103                  helptext = "Raise selected layer(s)",                  helptext = _("Make selected layer visible"),
1104                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1105  _method_command("layer_lower", "&Lower", "LowerLayer",  _method_command("layer_hide", _("&Hide"), "HideLayer",
1106                  helptext = "Lower selected layer(s)",                  helptext = _("Make selected layer unvisible"),
1107                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1108  _method_command("layer_show", "&Show", "ShowLayer",  _method_command("layer_show_table", _("Show Ta&ble"), "LayerShowTable",
1109                  helptext = "Make selected layer(s) visible",                  helptext = _("Show the selected layer's table"),
                 sensitive = _has_selected_layer)  
 _method_command("layer_hide", "&Hide", "HideLayer",  
                 helptext = "Make selected layer(s) unvisible",  
                 sensitive = _has_selected_layer)  
 _method_command("layer_show_table", "Show Ta&ble", "LayerShowTable",  
                 helptext = "Show the selected layer's table",  
1110                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1111    _method_command("layer_properties", _("&Properties..."), "LayerEditProperties",
1112                    sensitive = _has_selected_layer,
1113                    helptext = _("Edit the properties of the selected layer"))
1114    _method_command("layer_jointable", _("&Join Table..."), "LayerJoinTable",
1115                    sensitive = _has_selected_layer,
1116                    helptext = _("Join and attach a table to the selected layer"))
1117    
1118    def _can_unjoin(context):
1119        """Return whether the Layer/Unjoin command can be executed.
1120    
1121  # the menu structure      This is the case if a layer is selected and that layer has a
1122  main_menu = Menu("<main>", "<main>",      shapestore that has an original shapestore.
1123                   [Menu("file", "&File",      """
1124                         ["new_session", "open_session", None,      layer = context.mainwindow.SelectedLayer()
1125                          "save_session", "save_session_as", None,      if layer is None:
1126                          "show_session_tree", None,          return 0
1127                          "exit"]),      getstore = getattr(layer, "ShapeStore", None)
1128                    Menu("map", "&Map",      if getstore is not None:
1129                         ["layer_add", "layer_remove",          return getstore().OrigShapeStore() is not None
1130        else:
1131            return 0
1132    _method_command("layer_unjointable", _("&Unjoin Table..."), "LayerUnjoinTable",
1133                    sensitive = _can_unjoin,
1134                    helptext = _("Undo the last join operation"))
1135    
1136    
1137    def _has_tables(context):
1138        return bool(context.session.Tables())
1139    
1140    # Table menu
1141    _method_command("table_open", _("&Open..."), "TableOpen",
1142                    helptext = _("Open a DBF-table from a file"))
1143    _method_command("table_close", _("&Close..."), "TableClose",
1144           sensitive = lambda context: bool(context.session.UnreferencedTables()),
1145                    helptext = _("Close one or more tables from a list"))
1146    _method_command("table_rename", _("&Rename..."), "TableRename",
1147                    sensitive = _has_tables,
1148                    helptext = _("Rename one or more tables"))
1149    _method_command("table_show", _("&Show..."), "TableShow",
1150                    sensitive = _has_tables,
1151                    helptext = _("Show one or more tables in a dialog"))
1152    _method_command("table_join", _("&Join..."), "TableJoin",
1153                    sensitive = _has_tables,
1154                    helptext = _("Join two tables creating a new one"))
1155    
1156    #  Export only under Windows ...
1157    map_menu = ["layer_add", "layer_add_db", "rasterlayer_add", "layer_remove",
1158                          None,                          None,
1159                            "map_rename",
1160                          "map_projection",                          "map_projection",
1161                          None,                          None,
1162                          "map_zoom_in_tool", "map_zoom_out_tool",                          "map_zoom_in_tool", "map_zoom_out_tool",
1163                          "map_pan_tool", "map_identify_tool", "map_label_tool",                          "map_pan_tool",
                         None,  
1164                          "map_full_extent",                          "map_full_extent",
1165                            "layer_full_extent",
1166                            "selected_full_extent",
1167                          None,                          None,
1168                          "map_print"]),                          "map_identify_tool", "map_label_tool",
1169                    Menu("layer", "&Layer",                          None,
1170                         ["layer_fill_color", "layer_transparent_fill",                          "toggle_legend",
1171                          "layer_outline_color", "layer_no_outline",                          None]
1172    if wxPlatform == '__WXMSW__':
1173        map_menu.append("map_export")
1174    map_menu.append("map_print")
1175    
1176    # the menu structure
1177    main_menu = Menu("<main>", "<main>",
1178                     [Menu("file", _("&File"),
1179                           ["new_session", "open_session", None,
1180                            "save_session", "save_session_as", None,
1181                            "database_management", None,
1182                            "toggle_session_tree", None,
1183                            "exit"]),
1184                      Menu("map", _("&Map"), map_menu),
1185                      Menu("layer", _("&Layer"),
1186                           ["layer_rename", "layer_duplicate",
1187                          None,                          None,
1188                          "layer_raise", "layer_lower",                          "layer_raise", "layer_lower",
1189                          None,                          None,
1190                          "layer_show", "layer_hide",                          "layer_show", "layer_hide",
1191                          None,                          None,
1192                          "layer_show_table"]),                          "layer_projection",
1193                    Menu("help", "&Help",                          None,
1194                            "layer_show_table",
1195                            "layer_jointable",
1196                            "layer_unjointable",
1197                            None,
1198                            "layer_properties"]),
1199                      Menu("table", _("&Table"),
1200                           ["table_open", "table_close", "table_rename",
1201                           None,
1202                           "table_show",
1203                           None,
1204                           "table_join"]),
1205                      Menu("help", _("&Help"),
1206                         ["help_about"])])                         ["help_about"])])
1207    
1208  # the main toolbar  # the main toolbar
1209    
1210  main_toolbar = Menu("<toolbar>", "<toolbar>",  main_toolbar = Menu("<toolbar>", "<toolbar>",
1211                      ["map_zoom_in_tool", "map_zoom_out_tool", "map_pan_tool",                      ["map_zoom_in_tool", "map_zoom_out_tool", "map_pan_tool",
1212                       "map_identify_tool", "map_label_tool", "map_full_extent"])                       "map_full_extent",
1213                         "layer_full_extent",
1214                         "selected_full_extent",
1215                         None,
1216                         "map_identify_tool", "map_label_tool"])
1217    
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