/[thuban]/branches/WIP-pyshapelib-bramz/Thuban/UI/mainwindow.py
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revision 84 by bh, Wed Apr 3 15:21:46 2002 UTC revision 1448 by jonathan, Thu Jul 17 14:59:41 2003 UTC
# Line 1  Line 1 
1  # Copyright (C) 2001 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 12  The main window Line 13  The main window
13    
14  __version__ = "$Revision$"  __version__ = "$Revision$"
15    
16  import sys, os  __ThubanVersion__ = "0.8" #"$THUBAN_0_2$"
17    #__BuildDate__ = "$Date$"
18    
19    import os
20    import copy
21    
22  from wxPython.wx import *  from wxPython.wx import *
23    from wxPython.wx import __version__ as wxPython_version
24    
25  import Thuban  import Thuban
26  from Thuban.Model.session import Session, create_empty_session  import Thuban.version
27  from Thuban.Model.map import Map  
28  from Thuban.Model.layer import Layer  from Thuban import _
29  from Thuban.Model.color import Color  from Thuban.Model.session import create_empty_session
30  from Thuban.Model.proj import Projection  from Thuban.Model.layer import Layer, RasterLayer
31    
32    # XXX: replace this by
33    # from wxPython.lib.dialogs import wxMultipleChoiceDialog
34    # when Thuban does not support wxPython 2.4.0 any more.
35    from Thuban.UI.multiplechoicedialog import wxMultipleChoiceDialog
36    
37  import view  import view
38  import tree  import tree
 import proj4dialog  
39  import tableview, identifyview  import tableview, identifyview
40    from Thuban.UI.classifier import Classifier
41    import legend
42    from menu import Menu
43    
44    from context import Context
45    from command import registry, Command, ToolCommand
46    from messages import LAYER_SELECTED, SHAPES_SELECTED, VIEW_POSITION
47    from about import About
48    
49    from Thuban.UI.dock import DockFrame
50    from Thuban.UI.join import JoinDialog
51    
52    import resource
53    import Thuban.Model.resource
54    
55    import projdialog
56    
57    
58    class MainWindow(DockFrame):
59    
60        # Some messages that can be subscribed/unsubscribed directly through
61        # the MapCanvas come in fact from other objects. This is a map to
62        # map those messages to the names of the instance variables they
63        # actually come from. This delegation is implemented in the
64        # Subscribe and unsubscribed methods
65        delegated_messages = {LAYER_SELECTED: "canvas",
66                              SHAPES_SELECTED: "canvas"}
67    
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,
77                     initial_message = None, size = wxSize(-1, -1)):
78            DockFrame.__init__(self, parent, ID, title, wxDefaultPosition, size)
79            #wxFrame.__init__(self, parent, ID, title, wxDefaultPosition, size)
80    
81  import main          self.application = application
 from command import registry, Command  
 from messages import SELECTED_SHAPE  
   
   
 # the directory where the toolbar icons are stored  
 bitmapdir = os.path.join(Thuban.__path__[0], os.pardir, "Resources", "Bitmaps")  
 bitmapext = ".xpm"  
   
   
 class MainWindow(wxFrame):  
   
     def __init__(self, parent, ID, interactor):  
         wxFrame.__init__(self, parent, ID, 'Thuban',  
                          wxDefaultPosition, wxSize(400, 300))  
   
         self.interactor = interactor  
82    
83          self.CreateStatusBar()          self.CreateStatusBar()
84          self.SetStatusText("This is the wxPython-based "          if initial_message:
85                        "Graphical User Interface for exploring geographic data")              self.SetStatusText(initial_message)
86    
87          self.identify_view = None          self.identify_view = None
88    
89          self.init_ids()          self.init_ids()
90    
91          menuBar = wxMenuBar()          # creat the menubar from the main_menu description
92            self.SetMenuBar(self.build_menu_bar(main_menu))
         menu = wxMenu()  
         menuBar.Append(menu, "&File");  
         for name in ["new_session", "open_session", None,  
                      "save_session", "save_session_as", None,  
                      "exit"]:  
             self.add_menu_command(menu, name)  
   
         menu = wxMenu()  
         menuBar.Append(menu, "&Map");  
         for name in ["layer_add", "layer_remove",  
                      None,  
                      "map_projection",  
                      None,  
                      "map_zoom_in_tool", "map_zoom_out_tool", "map_pan_tool",  
                      "map_identify_tool", "map_label_tool",  
                      None,  
                      "map_full_extent",  
                      None,  
                      "map_print"]:  
             self.add_menu_command(menu, name)  
   
         menu = wxMenu()  
         menuBar.Append(menu, "&Layer");  
         for name in ["layer_fill_color", "layer_transparent_fill",  
                      "layer_ourline_color", "layer_no_outline",  
                      None,  
                      "layer_raise", "layer_lower",  
                      None,  
                      "layer_show", "layer_hide",  
                      None,  
                      "layer_show_table"]:  
             self.add_menu_command(menu, name)  
   
         menu = wxMenu()  
         menuBar.Append(menu, "&Help");  
         self.add_menu_command(menu, "help_about")  
   
         self.SetMenuBar(menuBar)  
   
         # toolbar  
         toolbar = self.CreateToolBar(wxTB_3DBUTTONS)  
   
         # set the size of the tools' bitmaps. Not needed on wxGTK, but  
         # on Windows. We probably shouldn't hardwire the bitmap size  
         # here  
         toolbar.SetToolBitmapSize(wxSize(24, 24))  
93    
94          for name in ["map_zoom_in_tool", "map_zoom_out_tool", "map_pan_tool",          # Similarly, create the toolbar from main_toolbar
95                       "map_identify_tool", "map_label_tool"]:          toolbar = self.build_toolbar(main_toolbar)
             self.add_toolbar_command(toolbar, name)  
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)
103            canvas.Subscribe(SHAPES_SELECTED, self.identify_view_on_demand)
104          self.canvas = canvas          self.canvas = canvas
105    
106            self.SetMainWindow(self.canvas)
107    
108            self.SetAutoLayout(True)
109    
110          self.init_dialogs()          self.init_dialogs()
111    
112          interactor.Subscribe(SELECTED_SHAPE, self.identify_view_on_demand)          self.ShowLegend()
113    
114          EVT_CLOSE(self, self.OnClose)          EVT_CLOSE(self, self.OnClose)
115    
116        def Subscribe(self, channel, *args):
117            """Subscribe a function to a message channel.
118    
119            If channel is one of the delegated messages call the appropriate
120            object's Subscribe method. Otherwise do nothing.
121            """
122            if channel in self.delegated_messages:
123                object = getattr(self, self.delegated_messages[channel])
124                object.Subscribe(channel, *args)
125            else:
126                print "Trying to subscribe to unsupported channel %s" % channel
127    
128        def Unsubscribe(self, channel, *args):
129            """Unsubscribe a function from a message channel.
130    
131            If channel is one of the delegated messages call the appropriate
132            object's Unsubscribe method. Otherwise do nothing.
133            """
134            if channel in self.delegated_messages:
135                object = getattr(self, self.delegated_messages[channel])
136                object.Unsubscribe(channel, *args)
137    
138        def __getattr__(self, attr):
139            """If attr is one of the delegated methods return that method
140    
141            Otherwise raise AttributeError.
142            """
143            if attr in self.delegated_methods:
144                return getattr(getattr(self, self.delegated_methods[attr]), attr)
145            raise AttributeError(attr)
146    
147      def init_ids(self):      def init_ids(self):
148          """Initialize the ids"""          """Initialize the ids"""
149          self.current_id = 6000          self.current_id = 6000
150          self.id_to_name = {}          self.id_to_name = {}
151          self.name_to_id = {}          self.name_to_id = {}
152            self.events_bound = {}
153    
154      def get_id(self, name):      def get_id(self, name):
155          """Return the wxWindows id for the command named name.          """Return the wxWindows id for the command named name.
# Line 136  class MainWindow(wxFrame): Line 162  class MainWindow(wxFrame):
162              self.name_to_id[name] = ID              self.name_to_id[name] = ID
163              self.id_to_name[ID] = name              self.id_to_name[ID] = name
164          return ID          return ID
165            
166        def bind_command_events(self, command, ID):
167            """Bind the necessary events for the given command and ID"""
168            if not self.events_bound.has_key(ID):
169                # the events haven't been bound yet
170                EVT_MENU(self, ID, self.invoke_command)
171                if command.IsDynamic():
172                    EVT_UPDATE_UI(self, ID, self.update_command_ui)
173    
174        def build_menu_bar(self, menudesc):
175            """Build and return the menu bar from the menu description"""
176            menu_bar = wxMenuBar()
177    
178            for item in menudesc.items:
179                # here the items must all be Menu instances themselves
180                menu_bar.Append(self.build_menu(item), item.title)
181    
182            return menu_bar
183    
184        def build_menu(self, menudesc):
185            """Return a wxMenu built from the menu description menudesc"""
186            wxmenu = wxMenu()
187            last = None
188            for item in menudesc.items:
189                if item is None:
190                    # a separator. Only add one if the last item was not a
191                    # separator
192                    if last is not None:
193                        wxmenu.AppendSeparator()
194                elif isinstance(item, Menu):
195                    # a submenu
196                    wxmenu.AppendMenu(wxNewId(), item.title, self.build_menu(item))
197                else:
198                    # must the name the name of a command
199                    self.add_menu_command(wxmenu, item)
200                last = item
201            return wxmenu
202    
203        def build_toolbar(self, toolbardesc):
204            """Build and return the main toolbar window from a toolbar description
205    
206            The parameter should be an instance of the Menu class but it
207            should not contain submenus.
208            """
209            toolbar = self.CreateToolBar(wxTB_3DBUTTONS)
210    
211            # set the size of the tools' bitmaps. Not needed on wxGTK, but
212            # on Windows, although it doesn't work very well there. It seems
213            # that only 16x16 icons are really supported on windows.
214            # We probably shouldn't hardwire the bitmap size here.
215            toolbar.SetToolBitmapSize(wxSize(24, 24))
216    
217            for item in toolbardesc.items:
218                if item is None:
219                    toolbar.AddSeparator()
220                else:
221                    # assume it's a string.
222                    self.add_toolbar_command(toolbar, item)
223    
224            return toolbar
225    
226      def add_menu_command(self, menu, name):      def add_menu_command(self, menu, name):
227          """Add the command with name name to the menu menu.          """Add the command with name name to the menu menu.
228    
# Line 150  class MainWindow(wxFrame): Line 236  class MainWindow(wxFrame):
236                  ID = self.get_id(name)                  ID = self.get_id(name)
237                  menu.Append(ID, command.Title(), command.HelpText(),                  menu.Append(ID, command.Title(), command.HelpText(),
238                              command.IsCheckCommand())                              command.IsCheckCommand())
239                  EVT_MENU(self, ID, self.invoke_command)                  self.bind_command_events(command, ID)
                 if command.IsDynamic():  
                     EVT_UPDATE_UI(self, ID, self.update_command_ui)  
240              else:              else:
241                  print "Unknown command %s" % name                  print _("Unknown command %s") % name
242    
243      def add_toolbar_command(self, toolbar, name):      def add_toolbar_command(self, toolbar, name):
244          """Add the command with name name to the toolbar toolbar.          """Add the command with name name to the toolbar toolbar.
# Line 169  class MainWindow(wxFrame): Line 253  class MainWindow(wxFrame):
253              command = registry.Command(name)              command = registry.Command(name)
254              if command is not None:              if command is not None:
255                  ID = self.get_id(name)                  ID = self.get_id(name)
256                  filename = os.path.join(bitmapdir, command.Icon()) + bitmapext                  bitmap = resource.GetBitmapResource(command.Icon(),
257                  bitmap = wxBitmap(filename, wxBITMAP_TYPE_XPM)                                                      wxBITMAP_TYPE_XPM)
258                  toolbar.AddTool(ID, bitmap,                  toolbar.AddTool(ID, bitmap,
259                                  shortHelpString = command.HelpText(),                                  shortHelpString = command.HelpText(),
260                                  isToggle = command.IsCheckCommand())                                  isToggle = command.IsCheckCommand())
261                    self.bind_command_events(command, ID)
262              else:              else:
263                  print "Unknown command %s" % name                  print _("Unknown command %s") % name
264    
265        def Context(self):
266            """Return the context object for a command invoked from this window
267            """
268            return Context(self.application, self.application.Session(), self)
269    
270      def invoke_command(self, event):      def invoke_command(self, event):
271          name = self.id_to_name.get(event.GetId())          name = self.id_to_name.get(event.GetId())
272          if name is not None:          if name is not None:
273              command = registry.Command(name)              command = registry.Command(name)
274              command.Execute(self)              command.Execute(self.Context())
275          else:          else:
276              print "Unknown command ID %d" % event.GetId()              print _("Unknown command ID %d") % event.GetId()
277    
278      def update_command_ui(self, event):      def update_command_ui(self, event):
279          #print "update_command_ui", self.id_to_name[event.GetId()]          #print "update_command_ui", self.id_to_name[event.GetId()]
280            context = self.Context()
281          command = registry.Command(self.id_to_name[event.GetId()])          command = registry.Command(self.id_to_name[event.GetId()])
282          if command is not None:          if command is not None:
283              event.Enable(command.Sensitive(self))              sensitive = command.Sensitive(context)
284              event.SetText(command.DynText(self))              event.Enable(sensitive)
285                if command.IsTool() and not sensitive and command.Checked(context):
286                    # When a checked tool command is disabled deselect all
287                    # tools. Otherwise the tool would remain active but it
288                    # might lead to errors if the tools stays active. This
289                    # problem occurred in GREAT-ER and this fixes it, but
290                    # it's not clear to me whether this is really the best
291                    # way to do it (BH, 20021206).
292                    self.canvas.SelectTool(None)
293                event.SetText(command.DynText(context))
294              if command.IsCheckCommand():              if command.IsCheckCommand():
295                  event.Check(command.Checked(self))                      event.Check(command.Checked(context))
296    
297      def RunMessageBox(self, title, text, flags = wxOK | wxICON_INFORMATION):      def RunMessageBox(self, title, text, flags = wxOK | wxICON_INFORMATION):
298          """Run a modla message box with the given text, title and flags          """Run a modal message box with the given text, title and flags
299          and return the result"""          and return the result"""
300          dlg = wxMessageDialog(self, text, title, flags)          dlg = wxMessageDialog(self, text, title, flags)
301            dlg.CenterOnParent()
302          result = dlg.ShowModal()          result = dlg.ShowModal()
303          dlg.Destroy()          dlg.Destroy()
304          return result          return result
# Line 211  class MainWindow(wxFrame): Line 312  class MainWindow(wxFrame):
312    
313      def add_dialog(self, name, dialog):      def add_dialog(self, name, dialog):
314          if self.dialogs.has_key(name):          if self.dialogs.has_key(name):
315              raise RuntimeError("The Dialog named %s is already open" % name)              raise RuntimeError(_("The Dialog named %s is already open") % name)
316          self.dialogs[name] = dialog          self.dialogs[name] = dialog
317    
318      def dialog_open(self, name):      def dialog_open(self, name):
# Line 223  class MainWindow(wxFrame): Line 324  class MainWindow(wxFrame):
324      def get_open_dialog(self, name):      def get_open_dialog(self, name):
325          return self.dialogs.get(name)          return self.dialogs.get(name)
326    
327        def view_position_changed(self):
328            pos = self.canvas.CurrentPosition()
329            if pos is not None:
330                text = "(%10.10g, %10.10g)" % pos
331            else:
332                text = ""
333            self.set_position_text(text)
334    
335        def set_position_text(self, text):
336            """Set the statusbar text showing the current position.
337    
338            By default the text is shown in field 0 of the status bar.
339            Override this method in derived classes to put it into a
340            different field of the statusbar.
341            """
342            self.SetStatusText(text)
343    
344      def save_modified_session(self, can_veto = 1):      def save_modified_session(self, can_veto = 1):
345          """If the current session has been modified, ask the user          """If the current session has been modified, ask the user
346          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 232  class MainWindow(wxFrame): Line 350  class MainWindow(wxFrame):
350          If the can_veto parameter is true (default) the dialog includes          If the can_veto parameter is true (default) the dialog includes
351          a cancel button, otherwise not.          a cancel button, otherwise not.
352          """          """
353          if main.app.session.WasModified():          if self.application.session.WasModified():
354              flags = wxYES_NO | wxICON_QUESTION              flags = wxYES_NO | wxICON_QUESTION
355              if can_veto:              if can_veto:
356                  flags = flags | wxCANCEL                  flags = flags | wxCANCEL
357              result = self.RunMessageBox("Exit",              result = self.RunMessageBox(_("Exit"),
358                                          ("The session has been modified."                                          _("The session has been modified."
359                                           " Do you want to save it?"),                                           " Do you want to save it?"),
360                                          flags)                                          flags)
361              if result == wxID_YES:              if result == wxID_YES:
# Line 246  class MainWindow(wxFrame): Line 364  class MainWindow(wxFrame):
364              result = wxID_NO              result = wxID_NO
365          return result          return result
366    
367        def prepare_new_session(self):
368            for d in self.dialogs.values():
369                if not isinstance(d, tree.SessionTreeView):
370                    d.Close()
371    
372      def NewSession(self):      def NewSession(self):
373          self.save_modified_session()          if self.save_modified_session() != wxID_CANCEL:
374          main.app.SetSession(create_empty_session())              self.prepare_new_session()
375                self.application.SetSession(create_empty_session())
376    
377      def OpenSession(self):      def OpenSession(self):
378          self.save_modified_session()          if self.save_modified_session() != wxID_CANCEL:
379          dlg = wxFileDialog(self, "Select a session file", ".", "",              dlg = wxFileDialog(self, _("Open Session"), ".", "",
380                             "*.session", wxOPEN)                                 "Thuban Session File (*.thuban)|*.thuban",
381          if dlg.ShowModal() == wxID_OK:                                 wxOPEN)
382              main.app.OpenSession(dlg.GetPath())              if dlg.ShowModal() == wxID_OK:
383          dlg.Destroy()                  self.prepare_new_session()
384                    self.application.OpenSession(dlg.GetPath())
385                dlg.Destroy()
386    
387      def SaveSession(self):      def SaveSession(self):
388          main.app.SaveSession()          if self.application.session.filename == None:
389                self.SaveSessionAs()
390            else:
391                self.application.SaveSession()
392    
393      def SaveSessionAs(self):      def SaveSessionAs(self):
394          dlg = wxFileDialog(self, "Enter a filename for session", ".", "",          dlg = wxFileDialog(self, _("Save Session As"), ".", "",
395                             "*.session", wxOPEN)                             "Thuban Session File (*.thuban)|*.thuban",
396                               wxSAVE|wxOVERWRITE_PROMPT)
397          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wxID_OK:
398              main.app.session.SetFilename(dlg.GetPath())              self.application.session.SetFilename(dlg.GetPath())
399              main.app.SaveSession()              self.application.SaveSession()
400          dlg.Destroy()          dlg.Destroy()
401    
402      def Exit(self):      def Exit(self):
403          self.Close(false)          self.Close(False)
404    
405      def OnClose(self, event):      def OnClose(self, event):
406          result = self.save_modified_session(can_veto = event.CanVeto())          result = self.save_modified_session(can_veto = event.CanVeto())
407          if result == wxID_CANCEL:          if result == wxID_CANCEL:
408              event.Veto()              event.Veto()
409          else:          else:
410                # FIXME: it would be better to tie the unsubscription to
411                # wx's destroy event, but that isn't implemented for wxGTK
412                # yet.
413                self.canvas.Unsubscribe(VIEW_POSITION, self.view_position_changed)
414                DockFrame.OnClose(self, event)
415                for dlg in self.dialogs.values():
416                    dlg.Destroy()
417                self.canvas.Destroy()
418              self.Destroy()              self.Destroy()
419    
420      def SetMap(self, map):      def SetMap(self, map):
421          self.canvas.SetMap(map)          self.canvas.SetMap(map)
422            self.__SetTitle(map.Title())
423    
424            dialog = self.FindRegisteredDock("legend")
425            if dialog is not None:
426                dialog.GetPanel().SetMap(self.Map())
427    
428      def ShowSessionTree(self):      def Map(self):
429            """Return the map displayed by this mainwindow"""
430    
431            return self.canvas.Map()
432    
433        def ToggleSessionTree(self):
434            """If the session tree is shown close it otherwise create a new tree"""
435          name = "session_tree"          name = "session_tree"
436          dialog = self.get_open_dialog(name)          dialog = self.get_open_dialog(name)
437          if dialog is None:          if dialog is None:
438              dialog = tree.SessionTreeView(self, main.app, name)              dialog = tree.SessionTreeView(self, self.application, name)
439              self.add_dialog(name, dialog)              self.add_dialog(name, dialog)
440              dialog.Show(true)              dialog.Show(True)
441          else:          else:
442              # FIXME: bring dialog to front here              dialog.Close()
443              pass  
444        def SessionTreeShown(self):
445            """Return true iff the session tree is currently shown"""
446            return self.get_open_dialog("session_tree") is not None
447    
448      def About(self):      def About(self):
449          self.RunMessageBox("About",          dlg = About(self)
450                             ("Thuban is a program for\n"          dlg.ShowModal()
451                              "exploring geographic data.\n"          dlg.Destroy()
                             "Copyright (C) 2001 Intevation GmbH.\n"  
                             "Thuban is licensed under the GPL"),  
                            wxOK | wxICON_INFORMATION)  
452    
453      def AddLayer(self):      def AddLayer(self):
454          dlg = wxFileDialog(self, "Select a session file", ".", "", "*.*",          dlg = wxFileDialog(self, _("Select a data file"), ".", "", "*.*",
455                             wxOPEN)                             wxOPEN)
456          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wxID_OK:
457              filename = dlg.GetPath()              filename = dlg.GetPath()
458              title = os.path.splitext(os.path.basename(filename))[0]              title = os.path.splitext(os.path.basename(filename))[0]
             layer = Layer(title, filename)  
459              map = self.canvas.Map()              map = self.canvas.Map()
460              has_layers = map.HasLayers()              has_layers = map.HasLayers()
461              try:              try:
462                    store = self.application.Session().OpenShapefile(filename)
463                except IOError:
464                    # the layer couldn't be opened
465                    self.RunMessageBox(_("Add Layer"),
466                                       _("Can't open the file '%s'.") % filename)
467                else:
468                    layer = Layer(title, store)
469                  map.AddLayer(layer)                  map.AddLayer(layer)
470                    if not has_layers:
471                        # if we're adding a layer to an empty map, fit the
472                        # new map to the window
473                        self.canvas.FitMapToWindow()
474            dlg.Destroy()
475    
476        def AddRasterLayer(self):
477            dlg = wxFileDialog(self, _("Select an image file"), ".", "", "*.*",
478                               wxOPEN)
479            if dlg.ShowModal() == wxID_OK:
480                filename = dlg.GetPath()
481                title = os.path.splitext(os.path.basename(filename))[0]
482                map = self.canvas.Map()
483                has_layers = map.HasLayers()
484                try:
485                    layer = RasterLayer(title, filename)
486              except IOError:              except IOError:
487                  # the layer couldn't be opened                  # the layer couldn't be opened
488                  self.RunMessageBox("Add Layer",                  self.RunMessageBox(_("Add Image Layer"),
489                                     "Can't open the file '%s'." % filename)                                     _("Can't open the file '%s'.") % filename)
490              else:              else:
491                    map.AddLayer(layer)
492                  if not has_layers:                  if not has_layers:
493                      # if we're adding a layer to an empty map, for the                      # if we're adding a layer to an empty map, fit the
494                      # new map to the window                      # new map to the window
495                      self.canvas.FitMapToWindow()                      self.canvas.FitMapToWindow()
496          dlg.Destroy()          dlg.Destroy()
# Line 328  class MainWindow(wxFrame): Line 500  class MainWindow(wxFrame):
500          if layer is not None:          if layer is not None:
501              self.canvas.Map().RemoveLayer(layer)              self.canvas.Map().RemoveLayer(layer)
502    
503        def CanRemoveLayer(self):
504            """Return true if the currently selected layer can be deleted.
505    
506            If no layer is selected return False.
507    
508            The return value of this method determines whether the remove
509            layer command is sensitive in menu.
510            """
511            layer = self.current_layer()
512            if layer is not None:
513                return self.canvas.Map().CanRemoveLayer(layer)
514            return False
515    
516      def RaiseLayer(self):      def RaiseLayer(self):
517          layer = self.current_layer()          layer = self.current_layer()
518          if layer is not None:          if layer is not None:
519              self.canvas.Map().RaiseLayer(layer)              self.canvas.Map().RaiseLayer(layer)
520            
521      def LowerLayer(self):      def LowerLayer(self):
522          layer = self.current_layer()          layer = self.current_layer()
523          if layer is not None:          if layer is not None:
# Line 343  class MainWindow(wxFrame): Line 528  class MainWindow(wxFrame):
528    
529          If no layer is selected, return None          If no layer is selected, return None
530          """          """
531          return self.interactor.SelectedLayer()          return self.canvas.SelectedLayer()
532    
533      def has_selected_layer(self):      def has_selected_layer(self):
534          """Return true if a layer is currently selected"""          """Return true if a layer is currently selected"""
535          return self.interactor.HasSelectedLayer()          return self.canvas.HasSelectedLayer()
536    
537      def choose_color(self):      def has_selected_shapes(self):
538          """Run the color selection dialog and return the selected color.          """Return true if a shape is currently selected"""
539            return self.canvas.HasSelectedShapes()
540    
541          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):  
542          layer = self.current_layer()          layer = self.current_layer()
543          if layer is not None:          if layer is not None:
544              color = self.choose_color()              layer.SetVisible(0)
             if color is not None:  
                 layer.SetFill(color)  
545    
546      def LayerTransparentFill(self):      def ShowLayer(self):
547          layer = self.current_layer()          layer = self.current_layer()
548          if layer is not None:          if layer is not None:
549              layer.SetFill(None)              layer.SetVisible(1)
550    
551      def LayerOutlineColor(self):      def DuplicateLayer(self):
552            """Ceate a new layer above the selected layer with the same shapestore
553            """
554          layer = self.current_layer()          layer = self.current_layer()
555          if layer is not None:          if layer is not None and hasattr(layer, "ShapeStore"):
556              color = self.choose_color()              new_layer = Layer(_("Copy of `%s'") % layer.Title(),
557              if color is not None:                                layer.ShapeStore(),
558                  layer.SetStroke(color)                                projection = layer.GetProjection())
559                new_classification = copy.deepcopy(layer.GetClassification())
560                new_layer.SetClassification(new_classification)
561                self.Map().AddLayer(new_layer)
562    
563      def LayerNoOutline(self):      def CanDuplicateLayer(self):
564            """Return whether the DuplicateLayer method can create a duplicate"""
565          layer = self.current_layer()          layer = self.current_layer()
566          if layer is not None:          return layer is not None and hasattr(layer, "ShapeStore")
             layer.SetStroke(None)  
   
     def HideLayer(self):  
         layer = self.current_layer()  
         if layer is not None:  
             layer.SetVisible(0)  
           
     def ShowLayer(self):  
         layer = self.current_layer()  
         if layer is not None:  
             layer.SetVisible(1)  
567    
568      def LayerShowTable(self):      def LayerShowTable(self):
569          layer = self.current_layer()          layer = self.current_layer()
570          if layer is not None:          if layer is not None:
571              table = layer.table              table = layer.ShapeStore().Table()
572              name = "table_view" + str(id(table))              name = "table_view" + str(id(table))
573              dialog = self.get_open_dialog(name)              dialog = self.get_open_dialog(name)
574              if dialog is None:              if dialog is None:
575                  dialog = tableview.TableFrame(self, self.interactor, name,                  dialog = tableview.LayerTableFrame(self, name,
576                                                "Table: %s" % layer.Title(),                                           _("Layer Table: %s") % layer.Title(),
577                                                layer, table)                                           layer, table)
578                  self.add_dialog(name, dialog)                  self.add_dialog(name, dialog)
579                  dialog.Show(true)                  dialog.Show(True)
580              else:              else:
581                  # FIXME: bring dialog to front here                  # FIXME: bring dialog to front here
582                  pass                  pass
583    
584      def Projection(self):      def MapProjection(self):
585          map = self.canvas.Map()  
586          proj = map.projection          name = "map_projection"
587          if proj is None:          dialog = self.get_open_dialog(name)
588              proj4Dlg = proj4dialog.Proj4Dialog(NULL, None)  
589          else:          if dialog is None:
590              proj4Dlg = proj4dialog.Proj4Dialog(NULL, map.projection.params)              map = self.canvas.Map()
591          if proj4Dlg.ShowModal() == wxID_OK:              dialog = projdialog.ProjFrame(self, name,
592              params = proj4Dlg.GetParams()                       _("Map Projection: %s") % map.Title(), map)
593              if params is not None:              self.add_dialog(name, dialog)
594                  proj = Projection(params)              dialog.Show()
595            dialog.Raise()
596    
597        def LayerProjection(self):
598    
599            layer = self.current_layer()
600    
601            name = "layer_projection" + str(id(layer))
602            dialog = self.get_open_dialog(name)
603    
604            if dialog is None:
605                map = self.canvas.Map()
606                dialog = projdialog.ProjFrame(self, name,
607                         _("Layer Projection: %s") % layer.Title(), layer)
608                self.add_dialog(name, dialog)
609                dialog.Show()
610            dialog.Raise()
611    
612        def LayerEditProperties(self):
613    
614            #
615            # the menu option for this should only be available if there
616            # is a current layer, so we don't need to check if the
617            # current layer is None
618            #
619    
620            layer = self.current_layer()
621            self.OpenLayerProperties(layer)
622    
623        def OpenLayerProperties(self, layer, group = None):
624            name = "layer_properties" + str(id(layer))
625            dialog = self.get_open_dialog(name)
626    
627            if dialog is None:
628                dialog = Classifier(self, name, self.Map(), layer, group)
629                self.add_dialog(name, dialog)
630                dialog.Show()
631            dialog.Raise()
632    
633        def LayerJoinTable(self):
634            layer = self.canvas.SelectedLayer()
635            if layer is not None:
636                dlg = JoinDialog(self, _("Join Layer with Table"),
637                                 self.application.session,
638                                 layer = layer)
639                dlg.ShowModal()
640    
641        def LayerUnjoinTable(self):
642            layer = self.canvas.SelectedLayer()
643            if layer is not None:
644                orig_store = layer.ShapeStore().OrigShapeStore()
645                if orig_store:
646                    layer.SetShapeStore(orig_store)
647    
648        def ShowLegend(self):
649            if not self.LegendShown():
650                self.ToggleLegend()
651    
652        def ToggleLegend(self):
653            """Show the legend if it's not shown otherwise hide it again"""
654            name = "legend"
655            dialog = self.FindRegisteredDock(name)
656    
657            if dialog is None:
658                dialog = self.CreateDock(name, -1, _("Legend"), wxLAYOUT_LEFT)
659                legend.LegendPanel(dialog, None, self)
660                dialog.Dock()
661                dialog.GetPanel().SetMap(self.Map())
662                dialog.Show()
663            else:
664                dialog.Show(not dialog.IsShown())
665    
666        def LegendShown(self):
667            """Return true iff the legend is currently open"""
668            dialog = self.FindRegisteredDock("legend")
669            return dialog is not None and dialog.IsShown()
670    
671        def TableOpen(self):
672            dlg = wxFileDialog(self, _("Open Table"), ".", "",
673                               _("DBF Files (*.dbf)") + "|*.dbf|" +
674                               #_("CSV Files (*.csv)") + "|*.csv|" +
675                               _("All Files (*.*)") + "|*.*",
676                               wxOPEN)
677            if dlg.ShowModal() == wxID_OK:
678                filename = dlg.GetPath()
679                dlg.Destroy()
680                try:
681                    table = self.application.session.OpenTableFile(filename)
682                except IOError:
683                    # the layer couldn't be opened
684                    self.RunMessageBox(_("Open Table"),
685                                       _("Can't open the file '%s'.") % filename)
686              else:              else:
687                  proj = None                  self.ShowTableView(table)
688              map.SetProjection(proj)  
689          proj4Dlg.Destroy()      def TableClose(self):
690            tables = self.application.session.UnreferencedTables()
691    
692            lst = [(t.Title(), t) for t in tables]
693            lst.sort()
694            titles = [i[0] for i in lst]
695            dlg = wxMultipleChoiceDialog(self, _("Pick the tables to close:"),
696                                         _("Close Table"), titles,
697                                         size = (400, 300),
698                                         style = wxDEFAULT_DIALOG_STYLE |
699                                                 wxRESIZE_BORDER)
700            if dlg.ShowModal() == wxID_OK:
701                for i in dlg.GetValue():
702                    self.application.session.RemoveTable(lst[i][1])
703    
704    
705        def TableShow(self):
706            """Offer a multi-selection dialog for tables to be displayed
707    
708            The windows for the selected tables are opened or brought to
709            the front.
710            """
711            tables = self.application.session.Tables()
712    
713            lst = [(t.Title(), t) for t in tables]
714            lst.sort()
715            titles = [i[0] for i in lst]
716            dlg = wxMultipleChoiceDialog(self, _("Pick the table to show:"),
717                                         _("Show Table"), titles,
718                                         size = (400,300),
719                                         style = wxDEFAULT_DIALOG_STYLE |
720                                                 wxRESIZE_BORDER)
721            if (dlg.ShowModal() == wxID_OK):
722                for i in dlg.GetValue():
723                    # XXX: if the table belongs to a layer, open a
724                    # LayerTableFrame instead of QueryTableFrame
725                    self.ShowTableView(lst[i][1])
726    
727        def TableJoin(self):
728            dlg = JoinDialog(self, _("Join Tables"), self.application.session)
729            dlg.ShowModal()
730    
731        def ShowTableView(self, table):
732            """Open a table view for the table and optionally"""
733            name = "table_view%d" % id(table)
734            dialog = self.get_open_dialog(name)
735            if dialog is None:
736                dialog = tableview.QueryTableFrame(self, name,
737                                                   _("Table: %s") % table.Title(),
738                                                   table)
739                self.add_dialog(name, dialog)
740                dialog.Show(True)
741            dialog.Raise()
742    
743        def TableRename(self):
744            """Let the user rename a table"""
745    
746            # First, let the user select a table
747            tables = self.application.session.Tables()
748            lst = [(t.Title(), t) for t in tables]
749            lst.sort()
750            titles = [i[0] for i in lst]
751            dlg = wxMultipleChoiceDialog(self, _("Pick the table to rename:"),
752                                         _("Rename Table"), titles,
753                                         size = (400,300),
754                                         style = wxDEFAULT_DIALOG_STYLE |
755                                                 wxRESIZE_BORDER)
756            if (dlg.ShowModal() == wxID_OK):
757                to_rename = [lst[i][1] for i in dlg.GetValue()]
758                dlg.Destroy()
759            else:
760                to_rename = []
761    
762            # Second, let the user rename the layers
763            for table in to_rename:
764                dlg = wxTextEntryDialog(self, "Table Title: ", "Rename Table",
765                                        table.Title())
766                try:
767                    if dlg.ShowModal() == wxID_OK:
768                        title = dlg.GetValue()
769                        if title != "":
770                            table.SetTitle(title)
771    
772                            # Make sure the session is marked as modified.
773                            # FIXME: This should be handled automatically,
774                            # but that requires more changes to the tables
775                            # than I have time for currently.
776                            self.application.session.changed()
777                finally:
778                    dlg.Destroy()
779    
780    
781      def ZoomInTool(self):      def ZoomInTool(self):
782          self.canvas.ZoomInTool()          self.canvas.ZoomInTool()
# Line 450  class MainWindow(wxFrame): Line 797  class MainWindow(wxFrame):
797      def FullExtent(self):      def FullExtent(self):
798          self.canvas.FitMapToWindow()          self.canvas.FitMapToWindow()
799    
800        def FullLayerExtent(self):
801            self.canvas.FitLayerToWindow(self.current_layer())
802    
803        def FullSelectionExtent(self):
804            self.canvas.FitSelectedToWindow()
805    
806        def ExportMap(self):
807            self.canvas.Export()
808    
809      def PrintMap(self):      def PrintMap(self):
810          self.canvas.Print()          self.canvas.Print()
811    
812      def identify_view_on_demand(self, layer, shape):      def RenameMap(self):
813            dlg = wxTextEntryDialog(self, "Map Title: ", "Rename Map",
814                                    self.Map().Title())
815            if dlg.ShowModal() == wxID_OK:
816                title = dlg.GetValue()
817                if title != "":
818                    self.Map().SetTitle(title)
819                    self.__SetTitle(title)
820    
821            dlg.Destroy()
822    
823        def RenameLayer(self):
824            """Let the user rename the currently selected layer"""
825            layer = self.current_layer()
826            if layer is not None:
827                dlg = wxTextEntryDialog(self, "Layer Title: ", "Rename Layer",
828                                        layer.Title())
829                try:
830                    if dlg.ShowModal() == wxID_OK:
831                        title = dlg.GetValue()
832                        if title != "":
833                            layer.SetTitle(title)
834                finally:
835                    dlg.Destroy()
836    
837        def identify_view_on_demand(self, layer, shapes):
838            """Subscribed to the canvas' SHAPES_SELECTED message
839    
840            If the current tool is the identify tool, at least one shape is
841            selected and the identify dialog is not shown, show the dialog.
842            """
843            # If the selection has become empty we don't need to do
844            # anything. Otherwise it could happen that the dialog was popped
845            # up when the selection became empty, e.g. when a new selection
846            # is opened while the identify tool is active and dialog had
847            # been closed
848            if not shapes:
849                return
850    
851          name = "identify_view"          name = "identify_view"
852          if self.canvas.CurrentTool() == "IdentifyTool":          if self.canvas.CurrentTool() == "IdentifyTool":
853              if not self.dialog_open(name):              if not self.dialog_open(name):
854                  dialog = identifyview.IdentifyView(self, self.interactor, name)                  dialog = identifyview.IdentifyView(self, name)
855                  self.add_dialog(name, dialog)                  self.add_dialog(name, dialog)
856                  dialog.Show(true)                  dialog.Show(True)
857              else:              else:
858                  # FIXME: bring dialog to front?                  # FIXME: bring dialog to front?
859                  pass                  pass
860    
861        def __SetTitle(self, title):
862            self.SetTitle("Thuban - " + title)
863    
864  #  #
865  # Define all the commands available in the main window  # Define all the commands available in the main window
866  #  #
# Line 471  class MainWindow(wxFrame): Line 868  class MainWindow(wxFrame):
868    
869  # Helper functions to define common command implementations  # Helper functions to define common command implementations
870  def call_method(context, methodname, *args):  def call_method(context, methodname, *args):
871      """Call the context's method methodname with args *args"""      """Call the mainwindow's method methodname with args *args"""
872      apply(getattr(context, methodname), args)      apply(getattr(context.mainwindow, methodname), args)
873    
874  def _method_command(name, title, method, helptext = "", sensitive = None):  def _method_command(name, title, method, helptext = "",
875      """Add a command implemented by a method of the context object"""                      icon = "", sensitive = None, checked = None):
876        """Add a command implemented by a method of the mainwindow object"""
877      registry.Add(Command(name, title, call_method, args=(method,),      registry.Add(Command(name, title, call_method, args=(method,),
878                           helptext = helptext, sensitive = sensitive))                           helptext = helptext, icon = icon,
879                             sensitive = sensitive, checked = checked))
880    
881    def make_check_current_tool(toolname):
882        """Return a function that tests if the currently active tool is toolname
883    
884        The returned function can be called with the context and returns
885        true iff the currently active tool's name is toolname. It's directly
886        usable as the 'checked' callback of a command.
887        """
888        def check_current_tool(context, name=toolname):
889            return context.mainwindow.canvas.CurrentTool() == name
890        return check_current_tool
891    
892  def _tool_command(name, title, method, toolname, helptext = "",  def _tool_command(name, title, method, toolname, helptext = "",
893                    icon = ""):                    icon = "", sensitive = None):
894      """Add a tool command"""      """Add a tool command"""
895      def check_current_tool(context, name=toolname):      registry.Add(ToolCommand(name, title, call_method, args=(method,),
896          return context.canvas.CurrentTool() == name                               helptext = helptext, icon = icon,
897      registry.Add(Command(name, title, call_method, args=(method,),                               checked = make_check_current_tool(toolname),
898                           helptext = helptext, icon = icon,                               sensitive = sensitive))
                          checked = check_current_tool))  
899    
900  def _has_selected_layer(context):  def _has_selected_layer(context):
901      """Return true if a layer is selected in the context"""      """Return true if a layer is selected in the context"""
902      return context.has_selected_layer()      return context.mainwindow.has_selected_layer()
903    
904    def _has_selected_shapes(context):
905        """Return true if a layer is selected in the context"""
906        return context.mainwindow.has_selected_shapes()
907    
908    def _can_remove_layer(context):
909        return context.mainwindow.CanRemoveLayer()
910    
911    def _has_tree_window_shown(context):
912        """Return true if the tree window is shown"""
913        return context.mainwindow.SessionTreeShown()
914    
915    def _has_visible_map(context):
916        """Return true iff theres a visible map in the mainwindow.
917    
918        A visible map is a map with at least one visible layer."""
919        map = context.mainwindow.Map()
920        if map is not None:
921            for layer in map.Layers():
922                if layer.Visible():
923                    return 1
924        return 0
925    
926    def _has_legend_shown(context):
927        """Return true if the legend window is shown"""
928        return context.mainwindow.LegendShown()
929    
930    def _has_gdal_support(context):
931        """Return True if the GDAL is available"""
932        return Thuban.Model.resource.has_gdal_support()
933    
934  # File menu  # File menu
935  _method_command("new_session", "&New Session", "NewSession")  _method_command("new_session", _("&New Session"), "NewSession",
936  _method_command("open_session", "&Open Session", "OpenSession")                  helptext = _("Start a new session"))
937  _method_command("save_session", "&Save Session", "SaveSession")  _method_command("open_session", _("&Open Session..."), "OpenSession",
938  _method_command("save_session_as", "Save Session &As", "SaveSessionAs")                  helptext = _("Open a session file"))
939  _method_command("exit", "&Exit", "Exit")  _method_command("save_session", _("&Save Session"), "SaveSession",
940                    helptext =_("Save this session to the file it was opened from"))
941    _method_command("save_session_as", _("Save Session &As..."), "SaveSessionAs",
942                    helptext = _("Save this session to a new file"))
943    _method_command("toggle_session_tree", _("Session &Tree"), "ToggleSessionTree",
944                    checked = _has_tree_window_shown,
945                    helptext = _("Toggle on/off the session tree analysis window"))
946    _method_command("toggle_legend", _("Legend"), "ToggleLegend",
947                    checked = _has_legend_shown,
948                    helptext = _("Toggle Legend on/off"))
949    _method_command("exit", _("E&xit"), "Exit",
950                    helptext = _("Finish working with Thuban"))
951    
952  # Help menu  # Help menu
953  _method_command("help_about", "&About", "About")  _method_command("help_about", _("&About..."), "About",
954                    helptext = _("Info about Thuban authors, version and modules"))
955    
956    
957  # Map menu  # Map menu
958  _method_command("map_projection", "Pro&jection", "Projection")  _method_command("map_projection", _("Pro&jection..."), "MapProjection",
959                    helptext = _("Set or change the map projection"))
960    
961  _tool_command("map_zoom_in_tool", "&Zoom in", "ZoomInTool", "ZoomInTool",  _tool_command("map_zoom_in_tool", _("&Zoom in"), "ZoomInTool", "ZoomInTool",
962                helptext = "Switch to map-mode 'zoom-in'", icon = "zoom_in")                helptext = _("Switch to map-mode 'zoom-in'"), icon = "zoom_in",
963  _tool_command("map_zoom_out_tool", "Zoom &out", "ZoomOutTool", "ZoomOutTool",                sensitive = _has_visible_map)
964                helptext = "Switch to map-mode 'zoom-out'", icon = "zoom_out")  _tool_command("map_zoom_out_tool", _("Zoom &out"), "ZoomOutTool", "ZoomOutTool",
965  _tool_command("map_pan_tool", "&Pan", "PanTool", "PanTool",                helptext = _("Switch to map-mode 'zoom-out'"), icon = "zoom_out",
966                helptext = "Switch to map-mode 'pan'", icon = "pan")                sensitive = _has_visible_map)
967  _tool_command("map_identify_tool", "&Identify", "IdentifyTool", "IdentifyTool",  _tool_command("map_pan_tool", _("&Pan"), "PanTool", "PanTool",
968                helptext = "Switch to map-mode 'identify'", icon = "identify")                helptext = _("Switch to map-mode 'pan'"), icon = "pan",
969  _tool_command("map_label_tool", "&Label", "LabelTool", "LabelTool",                sensitive = _has_visible_map)
970                helptext = "Add/Remove labels", icon = "label")  _tool_command("map_identify_tool", _("&Identify"), "IdentifyTool",
971  _method_command("map_full_extent", "&Full extent", "FullExtent")                "IdentifyTool",
972  _method_command("map_print", "Prin&t", "PrintMap", helptext = "Print the map")                helptext = _("Switch to map-mode 'identify'"), icon = "identify",
973                  sensitive = _has_visible_map)
974    _tool_command("map_label_tool", _("&Label"), "LabelTool", "LabelTool",
975                  helptext = _("Add/Remove labels"), icon = "label",
976                  sensitive = _has_visible_map)
977    _method_command("map_full_extent", _("&Full extent"), "FullExtent",
978                   helptext = _("Zoom to the full map extent"), icon = "fullextent",
979                  sensitive = _has_visible_map)
980    _method_command("layer_full_extent", _("&Full layer extent"), "FullLayerExtent",
981                    helptext = _("Zoom to the full layer extent"),
982                    icon = "fulllayerextent", sensitive = _has_selected_layer)
983    _method_command("selected_full_extent", _("&Full selection extent"),
984                    "FullSelectionExtent",
985                    helptext = _("Zoom to the full selection extent"),
986                    icon = "fullselextent", sensitive = _has_selected_shapes)
987    _method_command("map_export", _("E&xport"), "ExportMap",
988                    helptext = _("Export the map to file"))
989    _method_command("map_print", _("Prin&t"), "PrintMap",
990                    helptext = _("Print the map"))
991    _method_command("map_rename", _("&Rename..."), "RenameMap",
992                    helptext = _("Rename the map"))
993    _method_command("layer_add", _("&Add Layer..."), "AddLayer",
994                    helptext = _("Add a new layer to the map"))
995    _method_command("rasterlayer_add", _("&Add Image Layer..."), "AddRasterLayer",
996                    helptext = _("Add a new image layer to the map"),
997                    sensitive = _has_gdal_support)
998    _method_command("layer_remove", _("&Remove Layer"), "RemoveLayer",
999                    helptext = _("Remove selected layer"),
1000                    sensitive = _can_remove_layer)
1001    
1002  # Layer menu  # Layer menu
1003  _method_command("layer_add", "&Add Layer", "AddLayer",  _method_command("layer_projection", _("Pro&jection..."), "LayerProjection",
1004                  helptext = "Add a new layer to active map")                  sensitive = _has_selected_layer,
1005  _method_command("layer_remove", "&Remove Layer", "RemoveLayer",                  helptext = _("Specify projection for selected layer"))
1006                  helptext = "Remove selected layer(s)",  _method_command("layer_duplicate", _("&Duplicate"), "DuplicateLayer",
1007                    helptext = _("Duplicate selected layer"),
1008              sensitive = lambda context: context.mainwindow.CanDuplicateLayer())
1009    _method_command("layer_rename", _("Re&name ..."), "RenameLayer",
1010                    helptext = _("Rename selected layer"),
1011                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1012  _method_command("layer_fill_color", "&Fill Color", "LayerFillColor",  _method_command("layer_raise", _("&Raise"), "RaiseLayer",
1013                  helptext = "Set the fill color of selected layer(s)",                  helptext = _("Raise selected layer"),
1014                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1015  _method_command("layer_transparent_fill", "&Transparent Fill",  _method_command("layer_lower", _("&Lower"), "LowerLayer",
1016                  "LayerTransparentFill",                  helptext = _("Lower selected layer"),
                 helptext = "Do not fill the selected layer(s)",  
1017                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1018  _method_command("layer_ourline_color", "&Outline Color", "LayerOutlineColor",  _method_command("layer_show", _("&Show"), "ShowLayer",
1019                  helptext = "Set the outline color of selected layer(s)",                  helptext = _("Make selected layer visible"),
1020                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1021  _method_command("layer_no_outline", "&No Outline", "LayerNoOutline",  _method_command("layer_hide", _("&Hide"), "HideLayer",
1022                  helptext = "Do not draw the outline of the selected layer(s)",                  helptext = _("Make selected layer unvisible"),
1023                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1024  _method_command("layer_raise", "&Raise", "RaiseLayer",  _method_command("layer_show_table", _("Show Ta&ble"), "LayerShowTable",
1025                  helptext = "Raise selected layer(s)",                  helptext = _("Show the selected layer's table"),
                 sensitive = _has_selected_layer)  
 _method_command("layer_lower", "&Lower", "LowerLayer",  
                 helptext = "Lower selected layer(s)",  
                 sensitive = _has_selected_layer)  
 _method_command("layer_show", "&Show", "ShowLayer",  
                 helptext = "Make selected layer(s) visible",  
                 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",  
1026                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1027    _method_command("layer_properties", _("&Properties..."), "LayerEditProperties",
1028                    sensitive = _has_selected_layer,
1029                    helptext = _("Edit the properties of the selected layer"))
1030    _method_command("layer_jointable", _("&Join Table..."), "LayerJoinTable",
1031                    sensitive = _has_selected_layer,
1032                    helptext = _("Join and attach a table to the selected layer"))
1033    
1034    def _can_unjoin(context):
1035        """Return whether the Layer/Unjoin command can be executed.
1036    
1037        This is the case if a layer is selected and that layer has a
1038        shapestore that has an original shapestore.
1039        """
1040        layer = context.mainwindow.SelectedLayer()
1041        if layer is None:
1042            return 0
1043        getstore = getattr(layer, "ShapeStore", None)
1044        if getstore is not None:
1045            return getstore().OrigShapeStore() is not None
1046        else:
1047            return 0
1048    _method_command("layer_unjointable", _("&Unjoin Table..."), "LayerUnjoinTable",
1049                    sensitive = _can_unjoin,
1050                    helptext = _("Undo the last join operation"))
1051    
1052    
1053    def _has_tables(context):
1054        return bool(context.session.Tables())
1055    
1056    # Table menu
1057    _method_command("table_open", _("&Open..."), "TableOpen",
1058                    helptext = _("Open a DBF-table from a file"))
1059    _method_command("table_close", _("&Close..."), "TableClose",
1060           sensitive = lambda context: bool(context.session.UnreferencedTables()),
1061                    helptext = _("Close one or more tables from a list"))
1062    _method_command("table_rename", _("&Rename..."), "TableRename",
1063                    sensitive = _has_tables,
1064                    helptext = _("Rename one or more tables"))
1065    _method_command("table_show", _("&Show..."), "TableShow",
1066                    sensitive = _has_tables,
1067                    helptext = _("Show one or more tables in a dialog"))
1068    _method_command("table_join", _("&Join..."), "TableJoin",
1069                    sensitive = _has_tables,
1070                    helptext = _("Join two tables creating a new one"))
1071    
1072    #  Export only under Windows ...
1073    map_menu = ["layer_add", "rasterlayer_add", "layer_remove",
1074                            None,
1075                            "map_rename",
1076                            "map_projection",
1077                            None,
1078                            "map_zoom_in_tool", "map_zoom_out_tool",
1079                            "map_pan_tool",
1080                            "map_full_extent",
1081                            "layer_full_extent",
1082                            "selected_full_extent",
1083                            None,
1084                            "map_identify_tool", "map_label_tool",
1085                            None,
1086                            "toggle_legend",
1087                            None]
1088    if wxPlatform == '__WXMSW__':
1089        map_menu.append("map_export")
1090    map_menu.append("map_print")
1091    
1092    # the menu structure
1093    main_menu = Menu("<main>", "<main>",
1094                     [Menu("file", _("&File"),
1095                           ["new_session", "open_session", None,
1096                            "save_session", "save_session_as", None,
1097                            "toggle_session_tree", None,
1098                            "exit"]),
1099                      Menu("map", _("&Map"), map_menu),
1100                      Menu("layer", _("&Layer"),
1101                           ["layer_rename", "layer_duplicate",
1102                            None,
1103                            "layer_raise", "layer_lower",
1104                            None,
1105                            "layer_show", "layer_hide",
1106                            None,
1107                            "layer_projection",
1108                            None,
1109                            "layer_show_table",
1110                            "layer_jointable",
1111                            "layer_unjointable",
1112                            None,
1113                            "layer_properties"]),
1114                      Menu("table", _("&Table"),
1115                           ["table_open", "table_close", "table_rename",
1116                           None,
1117                           "table_show",
1118                           None,
1119                           "table_join"]),
1120                      Menu("help", _("&Help"),
1121                           ["help_about"])])
1122    
1123    # the main toolbar
1124    
1125    main_toolbar = Menu("<toolbar>", "<toolbar>",
1126                        ["map_zoom_in_tool", "map_zoom_out_tool", "map_pan_tool",
1127                         "map_full_extent",
1128                         "layer_full_extent",
1129                         "selected_full_extent",
1130                         None,
1131                         "map_identify_tool", "map_label_tool"])
1132    
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