/[thuban]/branches/WIP-pyshapelib-bramz/Thuban/UI/mainwindow.py
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revision 188 by bh, Tue May 28 12:38:45 2002 UTC revision 1620 by bh, Wed Aug 20 13:14:22 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 12  The main window Line 13  The main window
13    
14  __version__ = "$Revision$"  __version__ = "$Revision$"
15    
16    __ThubanVersion__ = "0.8" #"$THUBAN_0_2$"
17    #__BuildDate__ = "$Date$"
18    
19  import os  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    import Thuban.version
27    
28    from Thuban import _
29  from Thuban.Model.session import create_empty_session  from Thuban.Model.session import create_empty_session
30  from Thuban.Model.layer import Layer  from Thuban.Model.layer import Layer, RasterLayer
31  from Thuban.Model.color import Color  from Thuban.Model.postgisdb import PostGISShapeStore
32  from Thuban.Model.proj import Projection  # 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  from menu import Menu
43    
44  import main  from context import Context
45  from command import registry, Command  from command import registry, Command, ToolCommand
46  from messages import SELECTED_SHAPE, VIEW_POSITION  from messages import LAYER_SELECTED, SHAPES_SELECTED, VIEW_POSITION, \
47         MAP_REPLACED
48    from about import About
49  # the directory where the toolbar icons are stored  
50  bitmapdir = os.path.join(Thuban.__path__[0], os.pardir, "Resources", "Bitmaps")  from Thuban.UI.dock import DockFrame
51  bitmapext = ".xpm"  from Thuban.UI.join import JoinDialog
52    from Thuban.UI.dbdialog import DBFrame, ChooseDBTableDialog
53    import resource
54  class MainWindow(wxFrame):  import Thuban.Model.resource
55    
56      def __init__(self, parent, ID, interactor):  import projdialog
57          wxFrame.__init__(self, parent, ID, 'Thuban',  
58                           wxDefaultPosition, wxSize(400, 300))  
59    class MainWindow(DockFrame):
60    
61        # Some messages that can be subscribed/unsubscribed directly through
62        # the MapCanvas come in fact from other objects. This is a map to
63        # map those messages to the names of the instance variables they
64        # actually come from. This delegation is implemented in the
65        # Subscribe and unsubscribed methods
66        delegated_messages = {LAYER_SELECTED: "canvas",
67                              SHAPES_SELECTED: "canvas",
68                              MAP_REPLACED: "canvas"}
69    
70        # Methods delegated to some instance variables. The delegation is
71        # implemented in the __getattr__ method.
72        delegated_methods = {"SelectLayer": "canvas",
73                             "SelectShapes": "canvas",
74                             "SelectedLayer": "canvas",
75                             "SelectedShapes": "canvas",
76                             }
77    
78        def __init__(self, parent, ID, title, application, interactor,
79                     initial_message = None, size = wxSize(-1, -1)):
80            DockFrame.__init__(self, parent, ID, title, wxDefaultPosition, size)
81            #wxFrame.__init__(self, parent, ID, title, wxDefaultPosition, size)
82    
83          self.interactor = interactor          self.application = application
84    
85          self.CreateStatusBar()          self.CreateStatusBar()
86          self.SetStatusText("This is the wxPython-based "          if initial_message:
87                        "Graphical User Interface for exploring geographic data")              self.SetStatusText(initial_message)
88    
89          self.identify_view = None          self.identify_view = None
90    
91          self.init_ids()          self.init_ids()
92    
93          #main_menu.print_menu()          # creat the menubar from the main_menu description
94          self.SetMenuBar(self.build_menu_bar(main_menu))          self.SetMenuBar(self.build_menu_bar(main_menu))
95    
96          # toolbar          # Similarly, create the toolbar from main_toolbar
97          toolbar = self.CreateToolBar(wxTB_3DBUTTONS)          toolbar = self.build_toolbar(main_toolbar)
   
         # 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))  
   
         for name in ["map_zoom_in_tool", "map_zoom_out_tool", "map_pan_tool",  
                      "map_identify_tool", "map_label_tool", "map_full_extent"]:  
             self.add_toolbar_command(toolbar, name)  
98          # call Realize to make sure that the tools appear.          # call Realize to make sure that the tools appear.
99          toolbar.Realize()          toolbar.Realize()
100    
101    
102          # Create the map canvas          # Create the map canvas
103          canvas = view.MapCanvas(self, -1, interactor)          canvas = view.MapCanvas(self, -1)
104          canvas.Subscribe(VIEW_POSITION, self.view_position_changed)          canvas.Subscribe(VIEW_POSITION, self.view_position_changed)
105            canvas.Subscribe(SHAPES_SELECTED, self.identify_view_on_demand)
106          self.canvas = canvas          self.canvas = canvas
107    
108            self.SetMainWindow(self.canvas)
109    
110            self.SetAutoLayout(True)
111    
112          self.init_dialogs()          self.init_dialogs()
113    
114          interactor.Subscribe(SELECTED_SHAPE, self.identify_view_on_demand)          self.ShowLegend()
115    
116          EVT_CLOSE(self, self.OnClose)          EVT_CLOSE(self, self.OnClose)
117    
118        def Subscribe(self, channel, *args):
119            """Subscribe a function to a message channel.
120    
121            If channel is one of the delegated messages call the appropriate
122            object's Subscribe method. Otherwise do nothing.
123            """
124            if channel in self.delegated_messages:
125                object = getattr(self, self.delegated_messages[channel])
126                object.Subscribe(channel, *args)
127            else:
128                print "Trying to subscribe to unsupported channel %s" % channel
129    
130        def Unsubscribe(self, channel, *args):
131            """Unsubscribe a function from a message channel.
132    
133            If channel is one of the delegated messages call the appropriate
134            object's Unsubscribe method. Otherwise do nothing.
135            """
136            if channel in self.delegated_messages:
137                object = getattr(self, self.delegated_messages[channel])
138                object.Unsubscribe(channel, *args)
139    
140        def __getattr__(self, attr):
141            """If attr is one of the delegated methods return that method
142    
143            Otherwise raise AttributeError.
144            """
145            if attr in self.delegated_methods:
146                return getattr(getattr(self, self.delegated_methods[attr]), attr)
147            raise AttributeError(attr)
148    
149      def init_ids(self):      def init_ids(self):
150          """Initialize the ids"""          """Initialize the ids"""
151          self.current_id = 6000          self.current_id = 6000
152          self.id_to_name = {}          self.id_to_name = {}
153          self.name_to_id = {}          self.name_to_id = {}
154            self.events_bound = {}
155    
156      def get_id(self, name):      def get_id(self, name):
157          """Return the wxWindows id for the command named name.          """Return the wxWindows id for the command named name.
# Line 100  class MainWindow(wxFrame): Line 165  class MainWindow(wxFrame):
165              self.id_to_name[ID] = name              self.id_to_name[ID] = name
166          return ID          return ID
167    
168        def bind_command_events(self, command, ID):
169            """Bind the necessary events for the given command and ID"""
170            if not self.events_bound.has_key(ID):
171                # the events haven't been bound yet
172                EVT_MENU(self, ID, self.invoke_command)
173                if command.IsDynamic():
174                    EVT_UPDATE_UI(self, ID, self.update_command_ui)
175    
176      def build_menu_bar(self, menudesc):      def build_menu_bar(self, menudesc):
177          """Build and return the menu bar from the menu description"""          """Build and return the menu bar from the menu description"""
178          menu_bar = wxMenuBar()          menu_bar = wxMenuBar()
# Line 111  class MainWindow(wxFrame): Line 184  class MainWindow(wxFrame):
184          return menu_bar          return menu_bar
185    
186      def build_menu(self, menudesc):      def build_menu(self, menudesc):
187          """Build and return a wxMenu from a menudescription"""          """Return a wxMenu built from the menu description menudesc"""
188          wxmenu = wxMenu()          wxmenu = wxMenu()
189          last = None          last = None
190          for item in menudesc.items:          for item in menudesc.items:
             # here the items must all be Menu instances themselves  
191              if item is None:              if item is None:
192                  # a separator. Only add one if the last item was not a                  # a separator. Only add one if the last item was not a
193                  # separator                  # separator
# Line 130  class MainWindow(wxFrame): Line 202  class MainWindow(wxFrame):
202              last = item              last = item
203          return wxmenu          return wxmenu
204    
205        def build_toolbar(self, toolbardesc):
206            """Build and return the main toolbar window from a toolbar description
207    
208            The parameter should be an instance of the Menu class but it
209            should not contain submenus.
210            """
211            toolbar = self.CreateToolBar(wxTB_3DBUTTONS)
212    
213            # set the size of the tools' bitmaps. Not needed on wxGTK, but
214            # on Windows, although it doesn't work very well there. It seems
215            # that only 16x16 icons are really supported on windows.
216            # We probably shouldn't hardwire the bitmap size here.
217            toolbar.SetToolBitmapSize(wxSize(24, 24))
218    
219            for item in toolbardesc.items:
220                if item is None:
221                    toolbar.AddSeparator()
222                else:
223                    # assume it's a string.
224                    self.add_toolbar_command(toolbar, item)
225    
226            return toolbar
227    
228      def add_menu_command(self, menu, name):      def add_menu_command(self, menu, name):
229          """Add the command with name name to the menu menu.          """Add the command with name name to the menu menu.
230    
# Line 143  class MainWindow(wxFrame): Line 238  class MainWindow(wxFrame):
238                  ID = self.get_id(name)                  ID = self.get_id(name)
239                  menu.Append(ID, command.Title(), command.HelpText(),                  menu.Append(ID, command.Title(), command.HelpText(),
240                              command.IsCheckCommand())                              command.IsCheckCommand())
241                  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)  
242              else:              else:
243                  print "Unknown command %s" % name                  print _("Unknown command %s") % name
244    
245      def add_toolbar_command(self, toolbar, name):      def add_toolbar_command(self, toolbar, name):
246          """Add the command with name name to the toolbar toolbar.          """Add the command with name name to the toolbar toolbar.
# Line 162  class MainWindow(wxFrame): Line 255  class MainWindow(wxFrame):
255              command = registry.Command(name)              command = registry.Command(name)
256              if command is not None:              if command is not None:
257                  ID = self.get_id(name)                  ID = self.get_id(name)
258                  filename = os.path.join(bitmapdir, command.Icon()) + bitmapext                  bitmap = resource.GetBitmapResource(command.Icon(),
259                  bitmap = wxBitmap(filename, wxBITMAP_TYPE_XPM)                                                      wxBITMAP_TYPE_XPM)
260                  toolbar.AddTool(ID, bitmap,                  toolbar.AddTool(ID, bitmap,
261                                  shortHelpString = command.HelpText(),                                  shortHelpString = command.HelpText(),
262                                  isToggle = command.IsCheckCommand())                                  isToggle = command.IsCheckCommand())
263                    self.bind_command_events(command, ID)
264              else:              else:
265                  print "Unknown command %s" % name                  print _("Unknown command %s") % name
266    
267        def Context(self):
268            """Return the context object for a command invoked from this window
269            """
270            return Context(self.application, self.application.Session(), self)
271    
272      def invoke_command(self, event):      def invoke_command(self, event):
273          name = self.id_to_name.get(event.GetId())          name = self.id_to_name.get(event.GetId())
274          if name is not None:          if name is not None:
275              command = registry.Command(name)              command = registry.Command(name)
276              command.Execute(self)              command.Execute(self.Context())
277          else:          else:
278              print "Unknown command ID %d" % event.GetId()              print _("Unknown command ID %d") % event.GetId()
279    
280      def update_command_ui(self, event):      def update_command_ui(self, event):
281          #print "update_command_ui", self.id_to_name[event.GetId()]          #print "update_command_ui", self.id_to_name[event.GetId()]
282            context = self.Context()
283          command = registry.Command(self.id_to_name[event.GetId()])          command = registry.Command(self.id_to_name[event.GetId()])
284          if command is not None:          if command is not None:
285              event.Enable(command.Sensitive(self))              sensitive = command.Sensitive(context)
286              event.SetText(command.DynText(self))              event.Enable(sensitive)
287                if command.IsTool() and not sensitive and command.Checked(context):
288                    # When a checked tool command is disabled deselect all
289                    # tools. Otherwise the tool would remain active but it
290                    # might lead to errors if the tools stays active. This
291                    # problem occurred in GREAT-ER and this fixes it, but
292                    # it's not clear to me whether this is really the best
293                    # way to do it (BH, 20021206).
294                    self.canvas.SelectTool(None)
295                event.SetText(command.DynText(context))
296              if command.IsCheckCommand():              if command.IsCheckCommand():
297                  event.Check(command.Checked(self))                      event.Check(command.Checked(context))
298    
299      def RunMessageBox(self, title, text, flags = wxOK | wxICON_INFORMATION):      def RunMessageBox(self, title, text, flags = wxOK | wxICON_INFORMATION):
300          """Run a modal message box with the given text, title and flags          """Run a modal message box with the given text, title and flags
301          and return the result"""          and return the result"""
302          dlg = wxMessageDialog(self, text, title, flags)          dlg = wxMessageDialog(self, text, title, flags)
303            dlg.CenterOnParent()
304          result = dlg.ShowModal()          result = dlg.ShowModal()
305          dlg.Destroy()          dlg.Destroy()
306          return result          return result
# Line 204  class MainWindow(wxFrame): Line 314  class MainWindow(wxFrame):
314    
315      def add_dialog(self, name, dialog):      def add_dialog(self, name, dialog):
316          if self.dialogs.has_key(name):          if self.dialogs.has_key(name):
317              raise RuntimeError("The Dialog named %s is already open" % name)              raise RuntimeError(_("The Dialog named %s is already open") % name)
318          self.dialogs[name] = dialog          self.dialogs[name] = dialog
319    
320      def dialog_open(self, name):      def dialog_open(self, name):
# Line 222  class MainWindow(wxFrame): Line 332  class MainWindow(wxFrame):
332              text = "(%10.10g, %10.10g)" % pos              text = "(%10.10g, %10.10g)" % pos
333          else:          else:
334              text = ""              text = ""
335            self.set_position_text(text)
336    
337        def set_position_text(self, text):
338            """Set the statusbar text showing the current position.
339    
340            By default the text is shown in field 0 of the status bar.
341            Override this method in derived classes to put it into a
342            different field of the statusbar.
343            """
344          self.SetStatusText(text)          self.SetStatusText(text)
345    
346      def save_modified_session(self, can_veto = 1):      def save_modified_session(self, can_veto = 1):
# Line 233  class MainWindow(wxFrame): Line 352  class MainWindow(wxFrame):
352          If the can_veto parameter is true (default) the dialog includes          If the can_veto parameter is true (default) the dialog includes
353          a cancel button, otherwise not.          a cancel button, otherwise not.
354          """          """
355          if main.app.session.WasModified():          if self.application.session.WasModified():
356              flags = wxYES_NO | wxICON_QUESTION              flags = wxYES_NO | wxICON_QUESTION
357              if can_veto:              if can_veto:
358                  flags = flags | wxCANCEL                  flags = flags | wxCANCEL
359              result = self.RunMessageBox("Exit",              result = self.RunMessageBox(_("Exit"),
360                                          ("The session has been modified."                                          _("The session has been modified."
361                                           " Do you want to save it?"),                                           " Do you want to save it?"),
362                                          flags)                                          flags)
363              if result == wxID_YES:              if result == wxID_YES:
# Line 248  class MainWindow(wxFrame): Line 367  class MainWindow(wxFrame):
367          return result          return result
368    
369      def NewSession(self):      def NewSession(self):
370          self.save_modified_session()          if self.save_modified_session() != wxID_CANCEL:
371          main.app.SetSession(create_empty_session())              self.application.SetSession(create_empty_session())
372    
373      def OpenSession(self):      def OpenSession(self):
374          self.save_modified_session()          if self.save_modified_session() != wxID_CANCEL:
375          dlg = wxFileDialog(self, "Select a session file", ".", "",              dlg = wxFileDialog(self, _("Open Session"), ".", "",
376                             "*.thuban", wxOPEN)                                 "Thuban Session File (*.thuban)|*.thuban",
377          if dlg.ShowModal() == wxID_OK:                                 wxOPEN)
378              main.app.OpenSession(dlg.GetPath())              if dlg.ShowModal() == wxID_OK:
379          dlg.Destroy()                  self.application.OpenSession(dlg.GetPath())
380                dlg.Destroy()
381    
382      def SaveSession(self):      def SaveSession(self):
383          if main.app.session.filename == None:          if self.application.session.filename == None:
384              self.SaveSessionAs()              self.SaveSessionAs()
385          main.app.SaveSession()          else:
386                self.application.SaveSession()
387    
388      def SaveSessionAs(self):      def SaveSessionAs(self):
389          dlg = wxFileDialog(self, "Enter a filename for session", ".", "",          dlg = wxFileDialog(self, _("Save Session As"), ".", "",
390                             "*.thuban", wxOPEN)                             "Thuban Session File (*.thuban)|*.thuban",
391                               wxSAVE|wxOVERWRITE_PROMPT)
392          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wxID_OK:
393              main.app.session.SetFilename(dlg.GetPath())              self.application.session.SetFilename(dlg.GetPath())
394              main.app.SaveSession()              self.application.SaveSession()
395          dlg.Destroy()          dlg.Destroy()
396    
397      def Exit(self):      def Exit(self):
398          self.Close(false)          self.Close(False)
399    
400      def OnClose(self, event):      def OnClose(self, event):
401          result = self.save_modified_session(can_veto = event.CanVeto())          result = self.save_modified_session(can_veto = event.CanVeto())
402          if result == wxID_CANCEL:          if result == wxID_CANCEL:
403              event.Veto()              event.Veto()
404          else:          else:
405                # FIXME: it would be better to tie the unsubscription to
406                # wx's destroy event, but that isn't implemented for wxGTK
407                # yet.
408                self.canvas.Unsubscribe(VIEW_POSITION, self.view_position_changed)
409                DockFrame.OnClose(self, event)
410                for dlg in self.dialogs.values():
411                    dlg.Destroy()
412                self.canvas.Destroy()
413              self.Destroy()              self.Destroy()
414    
415      def SetMap(self, map):      def SetMap(self, map):
416          self.canvas.SetMap(map)          self.canvas.SetMap(map)
417            self.__SetTitle(map.Title())
418    
419            dialog = self.FindRegisteredDock("legend")
420            if dialog is not None:
421                dialog.GetPanel().SetMap(self.Map())
422    
423        def Map(self):
424            """Return the map displayed by this mainwindow"""
425    
426      def ShowSessionTree(self):          return self.canvas.Map()
427    
428        def ToggleSessionTree(self):
429            """If the session tree is shown close it otherwise create a new tree"""
430          name = "session_tree"          name = "session_tree"
431          dialog = self.get_open_dialog(name)          dialog = self.get_open_dialog(name)
432          if dialog is None:          if dialog is None:
433              dialog = tree.SessionTreeView(self, main.app, name)              dialog = tree.SessionTreeView(self, self.application, name)
434              self.add_dialog(name, dialog)              self.add_dialog(name, dialog)
435              dialog.Show(true)              dialog.Show(True)
436          else:          else:
437              # FIXME: bring dialog to front here              dialog.Close()
438              pass  
439        def SessionTreeShown(self):
440            """Return true iff the session tree is currently shown"""
441            return self.get_open_dialog("session_tree") is not None
442    
443      def About(self):      def About(self):
444          self.RunMessageBox("About",          dlg = About(self)
445                             ("Thuban is a program for\n"          dlg.ShowModal()
446                              "exploring geographic data.\n"          dlg.Destroy()
447                              "Copyright (C) 2001 Intevation GmbH.\n"  
448                              "Thuban is licensed under the GPL"),      def DatabaseManagement(self):
449                             wxOK | wxICON_INFORMATION)          name = "dbmanagement"
450            dialog = self.get_open_dialog(name)
451            if dialog is None:
452                map = self.canvas.Map()
453                dialog = DBFrame(self, name, self.application.Session())
454                self.add_dialog(name, dialog)
455                dialog.Show()
456            dialog.Raise()
457    
458      def AddLayer(self):      def AddLayer(self):
459          dlg = wxFileDialog(self, "Select a data file", ".", "", "*.*",          dlg = wxFileDialog(self, _("Select a data file"), ".", "", "*.*",
460                             wxOPEN)                             wxOPEN)
461          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wxID_OK:
462              filename = dlg.GetPath()              filename = dlg.GetPath()
463              title = os.path.splitext(os.path.basename(filename))[0]              title = os.path.splitext(os.path.basename(filename))[0]
             layer = Layer(title, filename)  
464              map = self.canvas.Map()              map = self.canvas.Map()
465              has_layers = map.HasLayers()              has_layers = map.HasLayers()
466              try:              try:
467                    store = self.application.Session().OpenShapefile(filename)
468                except IOError:
469                    # the layer couldn't be opened
470                    self.RunMessageBox(_("Add Layer"),
471                                       _("Can't open the file '%s'.") % filename)
472                else:
473                    layer = Layer(title, store)
474                  map.AddLayer(layer)                  map.AddLayer(layer)
475                    if not has_layers:
476                        # if we're adding a layer to an empty map, fit the
477                        # new map to the window
478                        self.canvas.FitMapToWindow()
479            dlg.Destroy()
480    
481        def AddRasterLayer(self):
482            dlg = wxFileDialog(self, _("Select an image file"), ".", "", "*.*",
483                               wxOPEN)
484            if dlg.ShowModal() == wxID_OK:
485                filename = dlg.GetPath()
486                title = os.path.splitext(os.path.basename(filename))[0]
487                map = self.canvas.Map()
488                has_layers = map.HasLayers()
489                try:
490                    layer = RasterLayer(title, filename)
491              except IOError:              except IOError:
492                  # the layer couldn't be opened                  # the layer couldn't be opened
493                  self.RunMessageBox("Add Layer",                  self.RunMessageBox(_("Add Image Layer"),
494                                     "Can't open the file '%s'." % filename)                                     _("Can't open the file '%s'.") % filename)
495              else:              else:
496                    map.AddLayer(layer)
497                  if not has_layers:                  if not has_layers:
498                      # if we're adding a layer to an empty map, for the                      # if we're adding a layer to an empty map, fit the
499                      # new map to the window                      # new map to the window
500                      self.canvas.FitMapToWindow()                      self.canvas.FitMapToWindow()
501          dlg.Destroy()          dlg.Destroy()
502    
503        def AddDBLayer(self):
504            """Add a layer read from a database"""
505            session = self.application.Session()
506            dlg = ChooseDBTableDialog(self.application.Session(), self,-1, "")
507    
508            if dlg.ShowModal() == wxID_OK:
509                dbconn, dbtable = dlg.GetTable()
510                try:
511                    title = str(dbtable)
512    
513                    # Chose the correct Interface for the database type
514                    store = PostGISShapeStore(dbconn, dbtable)
515                    session.AddShapeStore(store)
516                    layer = Layer(title, store)
517                except:
518                    # Some error occured while initializing the layer
519                    self.RunMessageBox(_("Add Layer from database"),
520                                       _("Can't open the database table '%s'")
521                                       % dbtable)
522    
523                map = self.canvas.Map()
524    
525                has_layers = map.HasLayers()
526                map.AddLayer(layer)
527                if not has_layers:
528                    self.canvas.FitMapToWindow()
529    
530            dlg.Destroy()
531    
532      def RemoveLayer(self):      def RemoveLayer(self):
533          layer = self.current_layer()          layer = self.current_layer()
534          if layer is not None:          if layer is not None:
535              self.canvas.Map().RemoveLayer(layer)              self.canvas.Map().RemoveLayer(layer)
536    
537        def CanRemoveLayer(self):
538            """Return true if the currently selected layer can be deleted.
539    
540            If no layer is selected return False.
541    
542            The return value of this method determines whether the remove
543            layer command is sensitive in menu.
544            """
545            layer = self.current_layer()
546            if layer is not None:
547                return self.canvas.Map().CanRemoveLayer(layer)
548            return False
549    
550      def RaiseLayer(self):      def RaiseLayer(self):
551          layer = self.current_layer()          layer = self.current_layer()
552          if layer is not None:          if layer is not None:
553              self.canvas.Map().RaiseLayer(layer)              self.canvas.Map().RaiseLayer(layer)
554            
555      def LowerLayer(self):      def LowerLayer(self):
556          layer = self.current_layer()          layer = self.current_layer()
557          if layer is not None:          if layer is not None:
# Line 346  class MainWindow(wxFrame): Line 562  class MainWindow(wxFrame):
562    
563          If no layer is selected, return None          If no layer is selected, return None
564          """          """
565          return self.interactor.SelectedLayer()          return self.canvas.SelectedLayer()
566    
567      def has_selected_layer(self):      def has_selected_layer(self):
568          """Return true if a layer is currently selected"""          """Return true if a layer is currently selected"""
569          return self.interactor.HasSelectedLayer()          return self.canvas.HasSelectedLayer()
   
     def choose_color(self):  
         """Run the color selection dialog and return the selected color.  
570    
571          If the user cancels, return None.      def has_selected_shapes(self):
572          """          """Return true if a shape is currently selected"""
573          dlg = wxColourDialog(self)          return self.canvas.HasSelectedShapes()
         color = None  
         if dlg.ShowModal() == wxID_OK:  
             data = dlg.GetColourData()  
             wxc = data.GetColour()  
             color = Color(wxc.Red() / 255.0,  
                           wxc.Green() / 255.0,  
                           wxc.Blue() / 255.0)  
         dlg.Destroy()  
         return color  
574    
575      def LayerFillColor(self):      def HideLayer(self):
576          layer = self.current_layer()          layer = self.current_layer()
577          if layer is not None:          if layer is not None:
578              color = self.choose_color()              layer.SetVisible(0)
             if color is not None:  
                 layer.SetFill(color)  
579    
580      def LayerTransparentFill(self):      def ShowLayer(self):
581          layer = self.current_layer()          layer = self.current_layer()
582          if layer is not None:          if layer is not None:
583              layer.SetFill(None)              layer.SetVisible(1)
584    
585      def LayerOutlineColor(self):      def DuplicateLayer(self):
586            """Ceate a new layer above the selected layer with the same shapestore
587            """
588          layer = self.current_layer()          layer = self.current_layer()
589          if layer is not None:          if layer is not None and hasattr(layer, "ShapeStore"):
590              color = self.choose_color()              new_layer = Layer(_("Copy of `%s'") % layer.Title(),
591              if color is not None:                                layer.ShapeStore(),
592                  layer.SetStroke(color)                                projection = layer.GetProjection())
593                new_classification = copy.deepcopy(layer.GetClassification())
594                new_layer.SetClassification(new_classification)
595                self.Map().AddLayer(new_layer)
596    
597      def LayerNoOutline(self):      def CanDuplicateLayer(self):
598            """Return whether the DuplicateLayer method can create a duplicate"""
599          layer = self.current_layer()          layer = self.current_layer()
600          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)  
601    
602      def LayerShowTable(self):      def LayerShowTable(self):
603          layer = self.current_layer()          layer = self.current_layer()
604          if layer is not None:          if layer is not None:
605              table = layer.table              table = layer.ShapeStore().Table()
606              name = "table_view" + str(id(table))              name = "table_view" + str(id(table))
607              dialog = self.get_open_dialog(name)              dialog = self.get_open_dialog(name)
608              if dialog is None:              if dialog is None:
609                  dialog = tableview.TableFrame(self, self.interactor, name,                  dialog = tableview.LayerTableFrame(self, name,
610                                                "Table: %s" % layer.Title(),                                           _("Layer Table: %s") % layer.Title(),
611                                                layer, table)                                           layer, table)
612                  self.add_dialog(name, dialog)                  self.add_dialog(name, dialog)
613                  dialog.Show(true)                  dialog.Show(True)
614              else:              else:
615                  # FIXME: bring dialog to front here                  # FIXME: bring dialog to front here
616                  pass                  pass
617    
618      def Projection(self):      def MapProjection(self):
619          map = self.canvas.Map()  
620          proj = map.projection          name = "map_projection"
621          if proj is None:          dialog = self.get_open_dialog(name)
622              proj4Dlg = proj4dialog.Proj4Dialog(NULL, None, map.BoundingBox())  
623          else:          if dialog is None:
624              proj4Dlg = proj4dialog.Proj4Dialog(NULL, map.projection.params,              map = self.canvas.Map()
625                                                 map.BoundingBox())              dialog = projdialog.ProjFrame(self, name,
626          if proj4Dlg.ShowModal() == wxID_OK:                       _("Map Projection: %s") % map.Title(), map)
627              params = proj4Dlg.GetParams()              self.add_dialog(name, dialog)
628              if params is not None:              dialog.Show()
629                  proj = Projection(params)          dialog.Raise()
630    
631        def LayerProjection(self):
632    
633            layer = self.current_layer()
634    
635            name = "layer_projection" + str(id(layer))
636            dialog = self.get_open_dialog(name)
637    
638            if dialog is None:
639                map = self.canvas.Map()
640                dialog = projdialog.ProjFrame(self, name,
641                         _("Layer Projection: %s") % layer.Title(), layer)
642                self.add_dialog(name, dialog)
643                dialog.Show()
644            dialog.Raise()
645    
646        def LayerEditProperties(self):
647    
648            #
649            # the menu option for this should only be available if there
650            # is a current layer, so we don't need to check if the
651            # current layer is None
652            #
653    
654            layer = self.current_layer()
655            self.OpenLayerProperties(layer)
656    
657        def OpenLayerProperties(self, layer, group = None):
658            name = "layer_properties" + str(id(layer))
659            dialog = self.get_open_dialog(name)
660    
661            if dialog is None:
662                dialog = Classifier(self, name, self.Map(), layer, group)
663                self.add_dialog(name, dialog)
664                dialog.Show()
665            dialog.Raise()
666    
667        def LayerJoinTable(self):
668            layer = self.canvas.SelectedLayer()
669            if layer is not None:
670                dlg = JoinDialog(self, _("Join Layer with Table"),
671                                 self.application.session,
672                                 layer = layer)
673                dlg.ShowModal()
674    
675        def LayerUnjoinTable(self):
676            layer = self.canvas.SelectedLayer()
677            if layer is not None:
678                orig_store = layer.ShapeStore().OrigShapeStore()
679                if orig_store:
680                    layer.SetShapeStore(orig_store)
681    
682        def ShowLegend(self):
683            if not self.LegendShown():
684                self.ToggleLegend()
685    
686        def ToggleLegend(self):
687            """Show the legend if it's not shown otherwise hide it again"""
688            name = "legend"
689            dialog = self.FindRegisteredDock(name)
690    
691            if dialog is None:
692                dialog = self.CreateDock(name, -1, _("Legend"), wxLAYOUT_LEFT)
693                legend.LegendPanel(dialog, None, self)
694                dialog.Dock()
695                dialog.GetPanel().SetMap(self.Map())
696                dialog.Show()
697            else:
698                dialog.Show(not dialog.IsShown())
699    
700        def LegendShown(self):
701            """Return true iff the legend is currently open"""
702            dialog = self.FindRegisteredDock("legend")
703            return dialog is not None and dialog.IsShown()
704    
705        def TableOpen(self):
706            dlg = wxFileDialog(self, _("Open Table"), ".", "",
707                               _("DBF Files (*.dbf)") + "|*.dbf|" +
708                               #_("CSV Files (*.csv)") + "|*.csv|" +
709                               _("All Files (*.*)") + "|*.*",
710                               wxOPEN)
711            if dlg.ShowModal() == wxID_OK:
712                filename = dlg.GetPath()
713                dlg.Destroy()
714                try:
715                    table = self.application.session.OpenTableFile(filename)
716                except IOError:
717                    # the layer couldn't be opened
718                    self.RunMessageBox(_("Open Table"),
719                                       _("Can't open the file '%s'.") % filename)
720              else:              else:
721                  proj = None                  self.ShowTableView(table)
722              map.SetProjection(proj)  
723          proj4Dlg.Destroy()      def TableClose(self):
724            tables = self.application.session.UnreferencedTables()
725    
726            lst = [(t.Title(), t) for t in tables]
727            lst.sort()
728            titles = [i[0] for i in lst]
729            dlg = wxMultipleChoiceDialog(self, _("Pick the tables to close:"),
730                                         _("Close Table"), titles,
731                                         size = (400, 300),
732                                         style = wxDEFAULT_DIALOG_STYLE |
733                                                 wxRESIZE_BORDER)
734            if dlg.ShowModal() == wxID_OK:
735                for i in dlg.GetValue():
736                    self.application.session.RemoveTable(lst[i][1])
737    
738    
739        def TableShow(self):
740            """Offer a multi-selection dialog for tables to be displayed
741    
742            The windows for the selected tables are opened or brought to
743            the front.
744            """
745            tables = self.application.session.Tables()
746    
747            lst = [(t.Title(), t) for t in tables]
748            lst.sort()
749            titles = [i[0] for i in lst]
750            dlg = wxMultipleChoiceDialog(self, _("Pick the table to show:"),
751                                         _("Show Table"), titles,
752                                         size = (400,300),
753                                         style = wxDEFAULT_DIALOG_STYLE |
754                                                 wxRESIZE_BORDER)
755            if (dlg.ShowModal() == wxID_OK):
756                for i in dlg.GetValue():
757                    # XXX: if the table belongs to a layer, open a
758                    # LayerTableFrame instead of QueryTableFrame
759                    self.ShowTableView(lst[i][1])
760    
761        def TableJoin(self):
762            dlg = JoinDialog(self, _("Join Tables"), self.application.session)
763            dlg.ShowModal()
764    
765        def ShowTableView(self, table):
766            """Open a table view for the table and optionally"""
767            name = "table_view%d" % id(table)
768            dialog = self.get_open_dialog(name)
769            if dialog is None:
770                dialog = tableview.QueryTableFrame(self, name,
771                                                   _("Table: %s") % table.Title(),
772                                                   table)
773                self.add_dialog(name, dialog)
774                dialog.Show(True)
775            dialog.Raise()
776    
777        def TableRename(self):
778            """Let the user rename a table"""
779    
780            # First, let the user select a table
781            tables = self.application.session.Tables()
782            lst = [(t.Title(), t) for t in tables]
783            lst.sort()
784            titles = [i[0] for i in lst]
785            dlg = wxMultipleChoiceDialog(self, _("Pick the table to rename:"),
786                                         _("Rename Table"), titles,
787                                         size = (400,300),
788                                         style = wxDEFAULT_DIALOG_STYLE |
789                                                 wxRESIZE_BORDER)
790            if (dlg.ShowModal() == wxID_OK):
791                to_rename = [lst[i][1] for i in dlg.GetValue()]
792                dlg.Destroy()
793            else:
794                to_rename = []
795    
796            # Second, let the user rename the layers
797            for table in to_rename:
798                dlg = wxTextEntryDialog(self, "Table Title: ", "Rename Table",
799                                        table.Title())
800                try:
801                    if dlg.ShowModal() == wxID_OK:
802                        title = dlg.GetValue()
803                        if title != "":
804                            table.SetTitle(title)
805    
806                            # Make sure the session is marked as modified.
807                            # FIXME: This should be handled automatically,
808                            # but that requires more changes to the tables
809                            # than I have time for currently.
810                            self.application.session.changed()
811                finally:
812                    dlg.Destroy()
813    
814    
815      def ZoomInTool(self):      def ZoomInTool(self):
816          self.canvas.ZoomInTool()          self.canvas.ZoomInTool()
# Line 454  class MainWindow(wxFrame): Line 831  class MainWindow(wxFrame):
831      def FullExtent(self):      def FullExtent(self):
832          self.canvas.FitMapToWindow()          self.canvas.FitMapToWindow()
833    
834        def FullLayerExtent(self):
835            self.canvas.FitLayerToWindow(self.current_layer())
836    
837        def FullSelectionExtent(self):
838            self.canvas.FitSelectedToWindow()
839    
840        def ExportMap(self):
841            self.canvas.Export()
842    
843      def PrintMap(self):      def PrintMap(self):
844          self.canvas.Print()          self.canvas.Print()
845    
846      def identify_view_on_demand(self, layer, shape):      def RenameMap(self):
847            dlg = wxTextEntryDialog(self, "Map Title: ", "Rename Map",
848                                    self.Map().Title())
849            if dlg.ShowModal() == wxID_OK:
850                title = dlg.GetValue()
851                if title != "":
852                    self.Map().SetTitle(title)
853                    self.__SetTitle(title)
854    
855            dlg.Destroy()
856    
857        def RenameLayer(self):
858            """Let the user rename the currently selected layer"""
859            layer = self.current_layer()
860            if layer is not None:
861                dlg = wxTextEntryDialog(self, "Layer Title: ", "Rename Layer",
862                                        layer.Title())
863                try:
864                    if dlg.ShowModal() == wxID_OK:
865                        title = dlg.GetValue()
866                        if title != "":
867                            layer.SetTitle(title)
868                finally:
869                    dlg.Destroy()
870    
871        def identify_view_on_demand(self, layer, shapes):
872            """Subscribed to the canvas' SHAPES_SELECTED message
873    
874            If the current tool is the identify tool, at least one shape is
875            selected and the identify dialog is not shown, show the dialog.
876            """
877            # If the selection has become empty we don't need to do
878            # anything. Otherwise it could happen that the dialog was popped
879            # up when the selection became empty, e.g. when a new selection
880            # is opened while the identify tool is active and dialog had
881            # been closed
882            if not shapes:
883                return
884    
885          name = "identify_view"          name = "identify_view"
886          if self.canvas.CurrentTool() == "IdentifyTool":          if self.canvas.CurrentTool() == "IdentifyTool":
887              if not self.dialog_open(name):              if not self.dialog_open(name):
888                  dialog = identifyview.IdentifyView(self, self.interactor, name)                  dialog = identifyview.IdentifyView(self, name)
889                  self.add_dialog(name, dialog)                  self.add_dialog(name, dialog)
890                  dialog.Show(true)                  dialog.Show(True)
891              else:              else:
892                  # FIXME: bring dialog to front?                  # FIXME: bring dialog to front?
893                  pass                  pass
894    
895        def __SetTitle(self, title):
896            self.SetTitle("Thuban - " + title)
897    
898  #  #
899  # Define all the commands available in the main window  # Define all the commands available in the main window
900  #  #
# Line 475  class MainWindow(wxFrame): Line 902  class MainWindow(wxFrame):
902    
903  # Helper functions to define common command implementations  # Helper functions to define common command implementations
904  def call_method(context, methodname, *args):  def call_method(context, methodname, *args):
905      """Call the context's method methodname with args *args"""      """Call the mainwindow's method methodname with args *args"""
906      apply(getattr(context, methodname), args)      apply(getattr(context.mainwindow, methodname), args)
907    
908  def _method_command(name, title, method, helptext = "",  def _method_command(name, title, method, helptext = "",
909                      icon = "", sensitive = None):                      icon = "", sensitive = None, checked = None):
910      """Add a command implemented by a method of the context object"""      """Add a command implemented by a method of the mainwindow object"""
911      registry.Add(Command(name, title, call_method, args=(method,),      registry.Add(Command(name, title, call_method, args=(method,),
912                           helptext = helptext, icon = icon,                           helptext = helptext, icon = icon,
913                           sensitive = sensitive))                           sensitive = sensitive, checked = checked))
914    
915    def make_check_current_tool(toolname):
916        """Return a function that tests if the currently active tool is toolname
917    
918        The returned function can be called with the context and returns
919        true iff the currently active tool's name is toolname. It's directly
920        usable as the 'checked' callback of a command.
921        """
922        def check_current_tool(context, name=toolname):
923            return context.mainwindow.canvas.CurrentTool() == name
924        return check_current_tool
925    
926  def _tool_command(name, title, method, toolname, helptext = "",  def _tool_command(name, title, method, toolname, helptext = "",
927                    icon = ""):                    icon = "", sensitive = None):
928      """Add a tool command"""      """Add a tool command"""
929      def check_current_tool(context, name=toolname):      registry.Add(ToolCommand(name, title, call_method, args=(method,),
930          return context.canvas.CurrentTool() == name                               helptext = helptext, icon = icon,
931      registry.Add(Command(name, title, call_method, args=(method,),                               checked = make_check_current_tool(toolname),
932                           helptext = helptext, icon = icon,                               sensitive = sensitive))
                          checked = check_current_tool))  
933    
934  def _has_selected_layer(context):  def _has_selected_layer(context):
935      """Return true if a layer is selected in the context"""      """Return true if a layer is selected in the context"""
936      return context.has_selected_layer()      return context.mainwindow.has_selected_layer()
937    
938    def _has_selected_shapes(context):
939        """Return true if a layer is selected in the context"""
940        return context.mainwindow.has_selected_shapes()
941    
942    def _can_remove_layer(context):
943        return context.mainwindow.CanRemoveLayer()
944    
945    def _has_tree_window_shown(context):
946        """Return true if the tree window is shown"""
947        return context.mainwindow.SessionTreeShown()
948    
949    def _has_visible_map(context):
950        """Return true iff theres a visible map in the mainwindow.
951    
952        A visible map is a map with at least one visible layer."""
953        map = context.mainwindow.Map()
954        if map is not None:
955            for layer in map.Layers():
956                if layer.Visible():
957                    return 1
958        return 0
959    
960    def _has_legend_shown(context):
961        """Return true if the legend window is shown"""
962        return context.mainwindow.LegendShown()
963    
964    def _has_gdal_support(context):
965        """Return True if the GDAL is available"""
966        return Thuban.Model.resource.has_gdal_support()
967    
968    def _has_dbconnections(context):
969        """Return whether the the session has database connections"""
970        return context.session.HasDBConnections()
971    
972  # File menu  # File menu
973  _method_command("new_session", "&New Session", "NewSession")  _method_command("new_session", _("&New Session"), "NewSession",
974  _method_command("open_session", "&Open Session", "OpenSession")                  helptext = _("Start a new session"))
975  _method_command("save_session", "&Save Session", "SaveSession")  _method_command("open_session", _("&Open Session..."), "OpenSession",
976  _method_command("save_session_as", "Save Session &As", "SaveSessionAs")                  helptext = _("Open a session file"))
977  _method_command("show_session_tree", "Show Session &Tree", "ShowSessionTree")  _method_command("save_session", _("&Save Session"), "SaveSession",
978  _method_command("exit", "&Exit", "Exit")                  helptext =_("Save this session to the file it was opened from"))
979    _method_command("save_session_as", _("Save Session &As..."), "SaveSessionAs",
980                    helptext = _("Save this session to a new file"))
981    _method_command("toggle_session_tree", _("Session &Tree"), "ToggleSessionTree",
982                    checked = _has_tree_window_shown,
983                    helptext = _("Toggle on/off the session tree analysis window"))
984    _method_command("toggle_legend", _("Legend"), "ToggleLegend",
985                    checked = _has_legend_shown,
986                    helptext = _("Toggle Legend on/off"))
987    _method_command("database_management", _("&Database Connections..."),
988                    "DatabaseManagement")
989    _method_command("exit", _("E&xit"), "Exit",
990                    helptext = _("Finish working with Thuban"))
991    
992  # Help menu  # Help menu
993  _method_command("help_about", "&About", "About")  _method_command("help_about", _("&About..."), "About",
994                    helptext = _("Info about Thuban authors, version and modules"))
995    
996    
997  # Map menu  # Map menu
998  _method_command("map_projection", "Pro&jection", "Projection")  _method_command("map_projection", _("Pro&jection..."), "MapProjection",
999                    helptext = _("Set or change the map projection"))
1000    
1001  _tool_command("map_zoom_in_tool", "&Zoom in", "ZoomInTool", "ZoomInTool",  _tool_command("map_zoom_in_tool", _("&Zoom in"), "ZoomInTool", "ZoomInTool",
1002                helptext = "Switch to map-mode 'zoom-in'", icon = "zoom_in")                helptext = _("Switch to map-mode 'zoom-in'"), icon = "zoom_in",
1003  _tool_command("map_zoom_out_tool", "Zoom &out", "ZoomOutTool", "ZoomOutTool",                sensitive = _has_visible_map)
1004                helptext = "Switch to map-mode 'zoom-out'", icon = "zoom_out")  _tool_command("map_zoom_out_tool", _("Zoom &out"), "ZoomOutTool", "ZoomOutTool",
1005  _tool_command("map_pan_tool", "&Pan", "PanTool", "PanTool",                helptext = _("Switch to map-mode 'zoom-out'"), icon = "zoom_out",
1006                helptext = "Switch to map-mode 'pan'", icon = "pan")                sensitive = _has_visible_map)
1007  _tool_command("map_identify_tool", "&Identify", "IdentifyTool", "IdentifyTool",  _tool_command("map_pan_tool", _("&Pan"), "PanTool", "PanTool",
1008                helptext = "Switch to map-mode 'identify'", icon = "identify")                helptext = _("Switch to map-mode 'pan'"), icon = "pan",
1009  _tool_command("map_label_tool", "&Label", "LabelTool", "LabelTool",                sensitive = _has_visible_map)
1010                helptext = "Add/Remove labels", icon = "label")  _tool_command("map_identify_tool", _("&Identify"), "IdentifyTool",
1011  _method_command("map_full_extent", "&Full extent", "FullExtent",                "IdentifyTool",
1012                 helptext = "Full Extent", icon = "fullextent")                helptext = _("Switch to map-mode 'identify'"), icon = "identify",
1013  _method_command("map_print", "Prin&t", "PrintMap", helptext = "Print the map")                sensitive = _has_visible_map)
1014    _tool_command("map_label_tool", _("&Label"), "LabelTool", "LabelTool",
1015                  helptext = _("Add/Remove labels"), icon = "label",
1016                  sensitive = _has_visible_map)
1017    _method_command("map_full_extent", _("&Full extent"), "FullExtent",
1018                   helptext = _("Zoom to the full map extent"), icon = "fullextent",
1019                  sensitive = _has_visible_map)
1020    _method_command("layer_full_extent", _("&Full layer extent"), "FullLayerExtent",
1021                    helptext = _("Zoom to the full layer extent"),
1022                    icon = "fulllayerextent", sensitive = _has_selected_layer)
1023    _method_command("selected_full_extent", _("&Full selection extent"),
1024                    "FullSelectionExtent",
1025                    helptext = _("Zoom to the full selection extent"),
1026                    icon = "fullselextent", sensitive = _has_selected_shapes)
1027    _method_command("map_export", _("E&xport"), "ExportMap",
1028                    helptext = _("Export the map to file"))
1029    _method_command("map_print", _("Prin&t"), "PrintMap",
1030                    helptext = _("Print the map"))
1031    _method_command("map_rename", _("&Rename..."), "RenameMap",
1032                    helptext = _("Rename the map"))
1033    _method_command("layer_add", _("&Add Layer..."), "AddLayer",
1034                    helptext = _("Add a new layer to the map"))
1035    _method_command("rasterlayer_add", _("&Add Image Layer..."), "AddRasterLayer",
1036                    helptext = _("Add a new image layer to the map"),
1037                    sensitive = _has_gdal_support)
1038    _method_command("layer_add_db", _("Add &Database Layer..."), "AddDBLayer",
1039                    helptext = _("Add a new database layer to active map"),
1040                    sensitive = _has_dbconnections)
1041    _method_command("layer_remove", _("&Remove Layer"), "RemoveLayer",
1042                    helptext = _("Remove selected layer"),
1043                    sensitive = _can_remove_layer)
1044    
1045  # Layer menu  # Layer menu
1046  _method_command("layer_add", "&Add Layer", "AddLayer",  _method_command("layer_projection", _("Pro&jection..."), "LayerProjection",
1047                  helptext = "Add a new layer to active map")                  sensitive = _has_selected_layer,
1048  _method_command("layer_remove", "&Remove Layer", "RemoveLayer",                  helptext = _("Specify projection for selected layer"))
1049                  helptext = "Remove selected layer(s)",  _method_command("layer_duplicate", _("&Duplicate"), "DuplicateLayer",
1050                  sensitive = _has_selected_layer)                  helptext = _("Duplicate selected layer"),
1051  _method_command("layer_fill_color", "&Fill Color", "LayerFillColor",            sensitive = lambda context: context.mainwindow.CanDuplicateLayer())
1052                  helptext = "Set the fill color of selected layer(s)",  _method_command("layer_rename", _("Re&name ..."), "RenameLayer",
1053                  sensitive = _has_selected_layer)                  helptext = _("Rename selected layer"),
 _method_command("layer_transparent_fill", "&Transparent Fill",  
                 "LayerTransparentFill",  
                 helptext = "Do not fill the selected layer(s)",  
                 sensitive = _has_selected_layer)  
 _method_command("layer_outline_color", "&Outline Color", "LayerOutlineColor",  
                 helptext = "Set the outline color of selected layer(s)",  
                 sensitive = _has_selected_layer)  
 _method_command("layer_no_outline", "&No Outline", "LayerNoOutline",  
                 helptext = "Do not draw the outline of the selected layer(s)",  
1054                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1055  _method_command("layer_raise", "&Raise", "RaiseLayer",  _method_command("layer_raise", _("&Raise"), "RaiseLayer",
1056                  helptext = "Raise selected layer(s)",                  helptext = _("Raise selected layer"),
1057                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1058  _method_command("layer_lower", "&Lower", "LowerLayer",  _method_command("layer_lower", _("&Lower"), "LowerLayer",
1059                  helptext = "Lower selected layer(s)",                  helptext = _("Lower selected layer"),
1060                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1061  _method_command("layer_show", "&Show", "ShowLayer",  _method_command("layer_show", _("&Show"), "ShowLayer",
1062                  helptext = "Make selected layer(s) visible",                  helptext = _("Make selected layer visible"),
1063                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1064  _method_command("layer_hide", "&Hide", "HideLayer",  _method_command("layer_hide", _("&Hide"), "HideLayer",
1065                  helptext = "Make selected layer(s) unvisible",                  helptext = _("Make selected layer unvisible"),
1066                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1067  _method_command("layer_show_table", "Show Ta&ble", "LayerShowTable",  _method_command("layer_show_table", _("Show Ta&ble"), "LayerShowTable",
1068                  helptext = "Show the selected layer's table",                  helptext = _("Show the selected layer's table"),
1069                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1070    _method_command("layer_properties", _("&Properties..."), "LayerEditProperties",
1071                    sensitive = _has_selected_layer,
1072                    helptext = _("Edit the properties of the selected layer"))
1073    _method_command("layer_jointable", _("&Join Table..."), "LayerJoinTable",
1074                    sensitive = _has_selected_layer,
1075                    helptext = _("Join and attach a table to the selected layer"))
1076    
1077    def _can_unjoin(context):
1078        """Return whether the Layer/Unjoin command can be executed.
1079    
1080        This is the case if a layer is selected and that layer has a
1081        shapestore that has an original shapestore.
1082        """
1083        layer = context.mainwindow.SelectedLayer()
1084        if layer is None:
1085            return 0
1086        getstore = getattr(layer, "ShapeStore", None)
1087        if getstore is not None:
1088            return getstore().OrigShapeStore() is not None
1089        else:
1090            return 0
1091    _method_command("layer_unjointable", _("&Unjoin Table..."), "LayerUnjoinTable",
1092                    sensitive = _can_unjoin,
1093                    helptext = _("Undo the last join operation"))
1094    
1095    
1096    def _has_tables(context):
1097        return bool(context.session.Tables())
1098    
1099    # Table menu
1100    _method_command("table_open", _("&Open..."), "TableOpen",
1101                    helptext = _("Open a DBF-table from a file"))
1102    _method_command("table_close", _("&Close..."), "TableClose",
1103           sensitive = lambda context: bool(context.session.UnreferencedTables()),
1104                    helptext = _("Close one or more tables from a list"))
1105    _method_command("table_rename", _("&Rename..."), "TableRename",
1106                    sensitive = _has_tables,
1107                    helptext = _("Rename one or more tables"))
1108    _method_command("table_show", _("&Show..."), "TableShow",
1109                    sensitive = _has_tables,
1110                    helptext = _("Show one or more tables in a dialog"))
1111    _method_command("table_join", _("&Join..."), "TableJoin",
1112                    sensitive = _has_tables,
1113                    helptext = _("Join two tables creating a new one"))
1114    
1115    #  Export only under Windows ...
1116  # the menu structure  map_menu = ["layer_add", "layer_add_db", "rasterlayer_add", "layer_remove",
 main_menu = Menu("<main>", "<main>",  
                  [Menu("file", "&File",  
                        ["new_session", "open_session", None,  
                         "save_session", "save_session_as", None,  
                         "show_session_tree", None,  
                         "exit"]),  
                   Menu("map", "&Map",  
                        ["layer_add", "layer_remove",  
1117                          None,                          None,
1118                            "map_rename",
1119                          "map_projection",                          "map_projection",
1120                          None,                          None,
1121                          "map_zoom_in_tool", "map_zoom_out_tool",                          "map_zoom_in_tool", "map_zoom_out_tool",
1122                          "map_pan_tool", "map_identify_tool", "map_label_tool",                          "map_pan_tool",
                         None,  
1123                          "map_full_extent",                          "map_full_extent",
1124                            "layer_full_extent",
1125                            "selected_full_extent",
1126                          None,                          None,
1127                          "map_print"]),                          "map_identify_tool", "map_label_tool",
1128                    Menu("layer", "&Layer",                          None,
1129                         ["layer_fill_color", "layer_transparent_fill",                          "toggle_legend",
1130                          "layer_outline_color", "layer_no_outline",                          None]
1131    if wxPlatform == '__WXMSW__':
1132        map_menu.append("map_export")
1133    map_menu.append("map_print")
1134    
1135    # the menu structure
1136    main_menu = Menu("<main>", "<main>",
1137                     [Menu("file", _("&File"),
1138                           ["new_session", "open_session", None,
1139                            "save_session", "save_session_as", None,
1140                            "database_management", None,
1141                            "toggle_session_tree", None,
1142                            "exit"]),
1143                      Menu("map", _("&Map"), map_menu),
1144                      Menu("layer", _("&Layer"),
1145                           ["layer_rename", "layer_duplicate",
1146                          None,                          None,
1147                          "layer_raise", "layer_lower",                          "layer_raise", "layer_lower",
1148                          None,                          None,
1149                          "layer_show", "layer_hide",                          "layer_show", "layer_hide",
1150                          None,                          None,
1151                          "layer_show_table"]),                          "layer_projection",
1152                    Menu("help", "&Help",                          None,
1153                            "layer_show_table",
1154                            "layer_jointable",
1155                            "layer_unjointable",
1156                            None,
1157                            "layer_properties"]),
1158                      Menu("table", _("&Table"),
1159                           ["table_open", "table_close", "table_rename",
1160                           None,
1161                           "table_show",
1162                           None,
1163                           "table_join"]),
1164                      Menu("help", _("&Help"),
1165                         ["help_about"])])                         ["help_about"])])
1166    
1167    # the main toolbar
1168    
1169    main_toolbar = Menu("<toolbar>", "<toolbar>",
1170                        ["map_zoom_in_tool", "map_zoom_out_tool", "map_pan_tool",
1171                         "map_full_extent",
1172                         "layer_full_extent",
1173                         "selected_full_extent",
1174                         None,
1175                         "map_identify_tool", "map_label_tool"])
1176    
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