/[thuban]/branches/WIP-pyshapelib-bramz/Thuban/UI/mainwindow.py
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revision 150 by bh, Tue May 7 16:55:38 2002 UTC revision 1155 by jan, Thu Jun 12 12:17:11 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  import sys, os  __ThubanVersion__ = "0.2" #"$THUBAN_0_2$"
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  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    
48    from Thuban.UI.dock import DockFrame
49    from Thuban.UI.join import JoinDialog
50    
51  # the directory where the toolbar icons are stored  import resource
 bitmapdir = os.path.join(Thuban.__path__[0], os.pardir, "Resources", "Bitmaps")  
 bitmapext = ".xpm"  
52    
53    import projdialog
54    
 class MainWindow(wxFrame):  
55    
     def __init__(self, parent, ID, interactor):  
         wxFrame.__init__(self, parent, ID, 'Thuban',  
                          wxDefaultPosition, wxSize(400, 300))  
56    
57          self.interactor = interactor  class MainWindow(DockFrame):
58    
59          self.CreateStatusBar()      # Some messages that can be subscribed/unsubscribed directly through
60          self.SetStatusText("This is the wxPython-based "      # the MapCanvas come in fact from other objects. This is a map to
61                        "Graphical User Interface for exploring geographic data")      # map those messages to the names of the instance variables they
62        # actually come from. This delegation is implemented in the
63        # Subscribe and unsubscribed methods
64        delegated_messages = {LAYER_SELECTED: "canvas",
65                              SHAPES_SELECTED: "canvas"}
66    
67          self.identify_view = None      # Methods delegated to some instance variables. The delegation is
68        # implemented in the __getattr__ method.
69        delegated_methods = {"SelectLayer": "canvas",
70                             "SelectShapes": "canvas",
71                             "SelectedLayer": "canvas",
72                             "SelectedShapes": "canvas",
73                             }
74    
75          self.init_ids()      def __init__(self, parent, ID, title, application, interactor,
76                     initial_message = None, size = wxSize(-1, -1)):
77            DockFrame.__init__(self, parent, ID, title, wxDefaultPosition, size)
78            #wxFrame.__init__(self, parent, ID, title, wxDefaultPosition, size)
79    
80          menuBar = wxMenuBar()          self.application = application
81    
82          menu = wxMenu()          self.CreateStatusBar()
83          menuBar.Append(menu, "&File");          if initial_message:
84          for name in ["new_session", "open_session", None,              self.SetStatusText(initial_message)
                      "save_session", "save_session_as", None,  
                      "show_session_tree", 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")  
85    
86          self.SetMenuBar(menuBar)          self.identify_view = None
87    
88          # toolbar          self.init_ids()
         toolbar = self.CreateToolBar(wxTB_3DBUTTONS)  
89    
90          # set the size of the tools' bitmaps. Not needed on wxGTK, but          # creat the menubar from the main_menu description
91          # on Windows. We probably shouldn't hardwire the bitmap size          self.SetMenuBar(self.build_menu_bar(main_menu))
         # here  
         toolbar.SetToolBitmapSize(wxSize(24, 24))  
92    
93          for name in ["map_zoom_in_tool", "map_zoom_out_tool", "map_pan_tool",          # Similarly, create the toolbar from main_toolbar
94                       "map_identify_tool", "map_label_tool", "map_full_extent"]:          toolbar = self.build_toolbar(main_toolbar)
             self.add_toolbar_command(toolbar, name)  
95          # call Realize to make sure that the tools appear.          # call Realize to make sure that the tools appear.
96          toolbar.Realize()          toolbar.Realize()
97    
98    
99          # Create the map canvas          # Create the map canvas
100          canvas = view.MapCanvas(self, -1, interactor)          canvas = view.MapCanvas(self, -1)
101          canvas.Subscribe(VIEW_POSITION, self.view_position_changed)          canvas.Subscribe(VIEW_POSITION, self.view_position_changed)
102            canvas.Subscribe(SHAPES_SELECTED, self.identify_view_on_demand)
103          self.canvas = canvas          self.canvas = canvas
104    
105          self.init_dialogs()          self.SetMainWindow(self.canvas)
106    
107            self.SetAutoLayout(True)
108    
109          interactor.Subscribe(SELECTED_SHAPE, self.identify_view_on_demand)          self.init_dialogs()
110    
111          EVT_CLOSE(self, self.OnClose)          EVT_CLOSE(self, self.OnClose)
112    
113        def Subscribe(self, channel, *args):
114            """Subscribe a function to a message channel.
115    
116            If channel is one of the delegated messages call the appropriate
117            object's Subscribe method. Otherwise do nothing.
118            """
119            if channel in self.delegated_messages:
120                object = getattr(self, self.delegated_messages[channel])
121                object.Subscribe(channel, *args)
122            else:
123                print "Trying to subscribe to unsupported channel %s" % channel
124    
125        def Unsubscribe(self, channel, *args):
126            """Unsubscribe a function from a message channel.
127    
128            If channel is one of the delegated messages call the appropriate
129            object's Unsubscribe method. Otherwise do nothing.
130            """
131            if channel in self.delegated_messages:
132                object = getattr(self, self.delegated_messages[channel])
133                object.Unsubscribe(channel, *args)
134    
135        def __getattr__(self, attr):
136            """If attr is one of the delegated methods return that method
137    
138            Otherwise raise AttributeError.
139            """
140            if attr in self.delegated_methods:
141                return getattr(getattr(self, self.delegated_methods[attr]), attr)
142            raise AttributeError(attr)
143    
144      def init_ids(self):      def init_ids(self):
145          """Initialize the ids"""          """Initialize the ids"""
146          self.current_id = 6000          self.current_id = 6000
147          self.id_to_name = {}          self.id_to_name = {}
148          self.name_to_id = {}          self.name_to_id = {}
149            self.events_bound = {}
150    
151      def get_id(self, name):      def get_id(self, name):
152          """Return the wxWindows id for the command named name.          """Return the wxWindows id for the command named name.
# Line 138  class MainWindow(wxFrame): Line 159  class MainWindow(wxFrame):
159              self.name_to_id[name] = ID              self.name_to_id[name] = ID
160              self.id_to_name[ID] = name              self.id_to_name[ID] = name
161          return ID          return ID
162            
163        def bind_command_events(self, command, ID):
164            """Bind the necessary events for the given command and ID"""
165            if not self.events_bound.has_key(ID):
166                # the events haven't been bound yet
167                EVT_MENU(self, ID, self.invoke_command)
168                if command.IsDynamic():
169                    EVT_UPDATE_UI(self, ID, self.update_command_ui)
170    
171        def build_menu_bar(self, menudesc):
172            """Build and return the menu bar from the menu description"""
173            menu_bar = wxMenuBar()
174    
175            for item in menudesc.items:
176                # here the items must all be Menu instances themselves
177                menu_bar.Append(self.build_menu(item), item.title)
178    
179            return menu_bar
180    
181        def build_menu(self, menudesc):
182            """Return a wxMenu built from the menu description menudesc"""
183            wxmenu = wxMenu()
184            last = None
185            for item in menudesc.items:
186                if item is None:
187                    # a separator. Only add one if the last item was not a
188                    # separator
189                    if last is not None:
190                        wxmenu.AppendSeparator()
191                elif isinstance(item, Menu):
192                    # a submenu
193                    wxmenu.AppendMenu(wxNewId(), item.title, self.build_menu(item))
194                else:
195                    # must the name the name of a command
196                    self.add_menu_command(wxmenu, item)
197                last = item
198            return wxmenu
199    
200        def build_toolbar(self, toolbardesc):
201            """Build and return the main toolbar window from a toolbar description
202    
203            The parameter should be an instance of the Menu class but it
204            should not contain submenus.
205            """
206            toolbar = self.CreateToolBar(wxTB_3DBUTTONS)
207    
208            # set the size of the tools' bitmaps. Not needed on wxGTK, but
209            # on Windows, although it doesn't work very well there. It seems
210            # that only 16x16 icons are really supported on windows.
211            # We probably shouldn't hardwire the bitmap size here.
212            toolbar.SetToolBitmapSize(wxSize(24, 24))
213    
214            for item in toolbardesc.items:
215                if item is None:
216                    toolbar.AddSeparator()
217                else:
218                    # assume it's a string.
219                    self.add_toolbar_command(toolbar, item)
220    
221            return toolbar
222    
223      def add_menu_command(self, menu, name):      def add_menu_command(self, menu, name):
224          """Add the command with name name to the menu menu.          """Add the command with name name to the menu menu.
225    
# Line 152  class MainWindow(wxFrame): Line 233  class MainWindow(wxFrame):
233                  ID = self.get_id(name)                  ID = self.get_id(name)
234                  menu.Append(ID, command.Title(), command.HelpText(),                  menu.Append(ID, command.Title(), command.HelpText(),
235                              command.IsCheckCommand())                              command.IsCheckCommand())
236                  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)  
237              else:              else:
238                  print "Unknown command %s" % name                  print _("Unknown command %s") % name
239    
240      def add_toolbar_command(self, toolbar, name):      def add_toolbar_command(self, toolbar, name):
241          """Add the command with name name to the toolbar toolbar.          """Add the command with name name to the toolbar toolbar.
# Line 171  class MainWindow(wxFrame): Line 250  class MainWindow(wxFrame):
250              command = registry.Command(name)              command = registry.Command(name)
251              if command is not None:              if command is not None:
252                  ID = self.get_id(name)                  ID = self.get_id(name)
253                  filename = os.path.join(bitmapdir, command.Icon()) + bitmapext                  bitmap = resource.GetBitmapResource(command.Icon(),
254                  bitmap = wxBitmap(filename, wxBITMAP_TYPE_XPM)                                                      wxBITMAP_TYPE_XPM)
255                  toolbar.AddTool(ID, bitmap,                  toolbar.AddTool(ID, bitmap,
256                                  shortHelpString = command.HelpText(),                                  shortHelpString = command.HelpText(),
257                                  isToggle = command.IsCheckCommand())                                  isToggle = command.IsCheckCommand())
258                    self.bind_command_events(command, ID)
259              else:              else:
260                  print "Unknown command %s" % name                  print _("Unknown command %s") % name
261    
262        def Context(self):
263            """Return the context object for a command invoked from this window
264            """
265            return Context(self.application, self.application.Session(), self)
266    
267      def invoke_command(self, event):      def invoke_command(self, event):
268          name = self.id_to_name.get(event.GetId())          name = self.id_to_name.get(event.GetId())
269          if name is not None:          if name is not None:
270              command = registry.Command(name)              command = registry.Command(name)
271              command.Execute(self)              command.Execute(self.Context())
272          else:          else:
273              print "Unknown command ID %d" % event.GetId()              print _("Unknown command ID %d") % event.GetId()
274    
275      def update_command_ui(self, event):      def update_command_ui(self, event):
276          #print "update_command_ui", self.id_to_name[event.GetId()]          #print "update_command_ui", self.id_to_name[event.GetId()]
277            context = self.Context()
278          command = registry.Command(self.id_to_name[event.GetId()])          command = registry.Command(self.id_to_name[event.GetId()])
279          if command is not None:          if command is not None:
280              event.Enable(command.Sensitive(self))              sensitive = command.Sensitive(context)
281              event.SetText(command.DynText(self))              event.Enable(sensitive)
282                if command.IsTool() and not sensitive and command.Checked(context):
283                    # When a checked tool command is disabled deselect all
284                    # tools. Otherwise the tool would remain active but it
285                    # might lead to errors if the tools stays active. This
286                    # problem occurred in GREAT-ER and this fixes it, but
287                    # it's not clear to me whether this is really the best
288                    # way to do it (BH, 20021206).
289                    self.canvas.SelectTool(None)
290                event.SetText(command.DynText(context))
291              if command.IsCheckCommand():              if command.IsCheckCommand():
292                  event.Check(command.Checked(self))                      event.Check(command.Checked(context))
293    
294      def RunMessageBox(self, title, text, flags = wxOK | wxICON_INFORMATION):      def RunMessageBox(self, title, text, flags = wxOK | wxICON_INFORMATION):
295          """Run a modla message box with the given text, title and flags          """Run a modal message box with the given text, title and flags
296          and return the result"""          and return the result"""
297          dlg = wxMessageDialog(self, text, title, flags)          dlg = wxMessageDialog(self, text, title, flags)
298            dlg.CenterOnParent()
299          result = dlg.ShowModal()          result = dlg.ShowModal()
300          dlg.Destroy()          dlg.Destroy()
301          return result          return result
# Line 213  class MainWindow(wxFrame): Line 309  class MainWindow(wxFrame):
309    
310      def add_dialog(self, name, dialog):      def add_dialog(self, name, dialog):
311          if self.dialogs.has_key(name):          if self.dialogs.has_key(name):
312              raise RuntimeError("The Dialog named %s is already open" % name)              raise RuntimeError(_("The Dialog named %s is already open") % name)
313          self.dialogs[name] = dialog          self.dialogs[name] = dialog
314    
315      def dialog_open(self, name):      def dialog_open(self, name):
# Line 231  class MainWindow(wxFrame): Line 327  class MainWindow(wxFrame):
327              text = "(%10.10g, %10.10g)" % pos              text = "(%10.10g, %10.10g)" % pos
328          else:          else:
329              text = ""              text = ""
330            self.set_position_text(text)
331    
332        def set_position_text(self, text):
333            """Set the statusbar text showing the current position.
334    
335            By default the text is shown in field 0 of the status bar.
336            Override this method in derived classes to put it into a
337            different field of the statusbar.
338            """
339          self.SetStatusText(text)          self.SetStatusText(text)
340    
341      def save_modified_session(self, can_veto = 1):      def save_modified_session(self, can_veto = 1):
# Line 242  class MainWindow(wxFrame): Line 347  class MainWindow(wxFrame):
347          If the can_veto parameter is true (default) the dialog includes          If the can_veto parameter is true (default) the dialog includes
348          a cancel button, otherwise not.          a cancel button, otherwise not.
349          """          """
350          if main.app.session.WasModified():          if self.application.session.WasModified():
351              flags = wxYES_NO | wxICON_QUESTION              flags = wxYES_NO | wxICON_QUESTION
352              if can_veto:              if can_veto:
353                  flags = flags | wxCANCEL                  flags = flags | wxCANCEL
354              result = self.RunMessageBox("Exit",              result = self.RunMessageBox(_("Exit"),
355                                          ("The session has been modified."                                          _("The session has been modified."
356                                           " Do you want to save it?"),                                           " Do you want to save it?"),
357                                          flags)                                          flags)
358              if result == wxID_YES:              if result == wxID_YES:
# Line 256  class MainWindow(wxFrame): Line 361  class MainWindow(wxFrame):
361              result = wxID_NO              result = wxID_NO
362          return result          return result
363    
364        def prepare_new_session(self):
365            for d in self.dialogs.values():
366                if not isinstance(d, tree.SessionTreeView):
367                    d.Close()
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.prepare_new_session()
372                self.application.SetSession(create_empty_session())
373    
374      def OpenSession(self):      def OpenSession(self):
375          self.save_modified_session()          if self.save_modified_session() != wxID_CANCEL:
376          dlg = wxFileDialog(self, "Select a session file", ".", "",              dlg = wxFileDialog(self, _("Open Session"), ".", "",
377                             "*.thuban", wxOPEN)                                 "Thuban Session File (*.thuban)|*.thuban",
378          if dlg.ShowModal() == wxID_OK:                                 wxOPEN)
379              main.app.OpenSession(dlg.GetPath())              if dlg.ShowModal() == wxID_OK:
380          dlg.Destroy()                  self.prepare_new_session()
381                    self.application.OpenSession(dlg.GetPath())
382                dlg.Destroy()
383    
384      def SaveSession(self):      def SaveSession(self):
385          if main.app.session.filename == None:          if self.application.session.filename == None:
386              self.SaveSessionAs()              self.SaveSessionAs()
387          main.app.SaveSession()          else:
388                self.application.SaveSession()
389    
390      def SaveSessionAs(self):      def SaveSessionAs(self):
391          dlg = wxFileDialog(self, "Enter a filename for session", ".", "",          dlg = wxFileDialog(self, _("Save Session As"), ".", "",
392                             "*.thuban", wxOPEN)                             "Thuban Session File (*.thuban)|*.thuban",
393                               wxSAVE|wxOVERWRITE_PROMPT)
394          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wxID_OK:
395              main.app.session.SetFilename(dlg.GetPath())              self.application.session.SetFilename(dlg.GetPath())
396              main.app.SaveSession()              self.application.SaveSession()
397          dlg.Destroy()          dlg.Destroy()
398    
399      def Exit(self):      def Exit(self):
400          self.Close(false)          self.Close(False)
401    
402      def OnClose(self, event):      def OnClose(self, event):
403          result = self.save_modified_session(can_veto = event.CanVeto())          result = self.save_modified_session(can_veto = event.CanVeto())
404          if result == wxID_CANCEL:          if result == wxID_CANCEL:
405              event.Veto()              event.Veto()
406          else:          else:
407                # FIXME: it would be better to tie the unsubscription to
408                # wx's destroy event, but that isn't implemented for wxGTK
409                # yet.
410                self.canvas.Unsubscribe(VIEW_POSITION, self.view_position_changed)
411                DockFrame.OnClose(self, event)
412                for dlg in self.dialogs.values():
413                    dlg.Destroy()
414                self.canvas.Destroy()
415              self.Destroy()              self.Destroy()
416    
417      def SetMap(self, map):      def SetMap(self, map):
418          self.canvas.SetMap(map)          self.canvas.SetMap(map)
419            self.__SetTitle(map.Title())
420    
421            dialog = self.FindRegisteredDock("legend")
422            if dialog is not None:
423                dialog.GetPanel().SetMap(self.Map())
424    
425        def Map(self):
426            """Return the map displayed by this mainwindow"""
427    
428      def ShowSessionTree(self):          return self.canvas.Map()
429    
430        def ToggleSessionTree(self):
431            """If the session tree is shown close it otherwise create a new tree"""
432          name = "session_tree"          name = "session_tree"
433          dialog = self.get_open_dialog(name)          dialog = self.get_open_dialog(name)
434          if dialog is None:          if dialog is None:
435              dialog = tree.SessionTreeView(self, main.app, name)              dialog = tree.SessionTreeView(self, self.application, name)
436              self.add_dialog(name, dialog)              self.add_dialog(name, dialog)
437              dialog.Show(true)              dialog.Show(True)
438          else:          else:
439              # FIXME: bring dialog to front here              dialog.Close()
440              pass  
441        def SessionTreeShown(self):
442            """Return true iff the session tree is currently shown"""
443            return self.get_open_dialog("session_tree") is not None
444    
445      def About(self):      def About(self):
446          self.RunMessageBox("About",          self.RunMessageBox(_("About"),
447                             ("Thuban is a program for\n"                             _("Thuban %s\n"
448                                #"Build Date: %s\n"
449                                "using:\n"
450                                "  %s\n"
451                                "  %s\n\n"
452                                "Thuban is a program for\n"
453                              "exploring geographic data.\n"                              "exploring geographic data.\n"
454                              "Copyright (C) 2001 Intevation GmbH.\n"                              "Copyright (C) 2001-2003 Intevation GmbH.\n"
455                              "Thuban is licensed under the GPL"),                              "Thuban is licensed under the GNU GPL"
456                                % (Thuban.version.longversion,
457                                   "wxPython %s" % wxPython_version,
458                                   "Python %d.%d.%d" % sys.version_info[:3]
459                                  )),
460    #                           % __ThubanVersion__), #__BuildDate__)),
461                             wxOK | wxICON_INFORMATION)                             wxOK | wxICON_INFORMATION)
462    
463      def AddLayer(self):      def AddLayer(self):
464          dlg = wxFileDialog(self, "Select a data file", ".", "", "*.*",          dlg = wxFileDialog(self, _("Select a data file"), ".", "", "*.*",
465                             wxOPEN)                             wxOPEN)
466          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wxID_OK:
467              filename = dlg.GetPath()              filename = dlg.GetPath()
468              title = os.path.splitext(os.path.basename(filename))[0]              title = os.path.splitext(os.path.basename(filename))[0]
             layer = Layer(title, filename)  
469              map = self.canvas.Map()              map = self.canvas.Map()
470              has_layers = map.HasLayers()              has_layers = map.HasLayers()
471              try:              try:
472                    store = self.application.Session().OpenShapefile(filename)
473                except IOError:
474                    # the layer couldn't be opened
475                    self.RunMessageBox(_("Add Layer"),
476                                       _("Can't open the file '%s'.") % filename)
477                else:
478                    layer = Layer(title, store)
479                  map.AddLayer(layer)                  map.AddLayer(layer)
480                    if not has_layers:
481                        # if we're adding a layer to an empty map, fit the
482                        # new map to the window
483                        self.canvas.FitMapToWindow()
484            dlg.Destroy()
485    
486        def AddRasterLayer(self):
487            dlg = wxFileDialog(self, _("Select an image file"), ".", "", "*.*",
488                               wxOPEN)
489            if dlg.ShowModal() == wxID_OK:
490                filename = dlg.GetPath()
491                title = os.path.splitext(os.path.basename(filename))[0]
492                map = self.canvas.Map()
493                has_layers = map.HasLayers()
494                try:
495                    layer = RasterLayer(title, filename)
496              except IOError:              except IOError:
497                  # the layer couldn't be opened                  # the layer couldn't be opened
498                  self.RunMessageBox("Add Layer",                  self.RunMessageBox(_("Add Image Layer"),
499                                     "Can't open the file '%s'." % filename)                                     _("Can't open the file '%s'.") % filename)
500              else:              else:
501                    map.AddLayer(layer)
502                  if not has_layers:                  if not has_layers:
503                      # if we're adding a layer to an empty map, for the                      # if we're adding a layer to an empty map, fit the
504                      # new map to the window                      # new map to the window
505                      self.canvas.FitMapToWindow()                      self.canvas.FitMapToWindow()
506          dlg.Destroy()          dlg.Destroy()
# Line 340  class MainWindow(wxFrame): Line 510  class MainWindow(wxFrame):
510          if layer is not None:          if layer is not None:
511              self.canvas.Map().RemoveLayer(layer)              self.canvas.Map().RemoveLayer(layer)
512    
513        def CanRemoveLayer(self):
514            """Return true if the currently selected layer can be deleted.
515    
516            If no layer is selected return False.
517    
518            The return value of this method determines whether the remove
519            layer command is sensitive in menu.
520            """
521            layer = self.current_layer()
522            if layer is not None:
523                return self.canvas.Map().CanRemoveLayer(layer)
524            return False
525    
526      def RaiseLayer(self):      def RaiseLayer(self):
527          layer = self.current_layer()          layer = self.current_layer()
528          if layer is not None:          if layer is not None:
529              self.canvas.Map().RaiseLayer(layer)              self.canvas.Map().RaiseLayer(layer)
530            
531      def LowerLayer(self):      def LowerLayer(self):
532          layer = self.current_layer()          layer = self.current_layer()
533          if layer is not None:          if layer is not None:
# Line 355  class MainWindow(wxFrame): Line 538  class MainWindow(wxFrame):
538    
539          If no layer is selected, return None          If no layer is selected, return None
540          """          """
541          return self.interactor.SelectedLayer()          return self.canvas.SelectedLayer()
542    
543      def has_selected_layer(self):      def has_selected_layer(self):
544          """Return true if a layer is currently selected"""          """Return true if a layer is currently selected"""
545          return self.interactor.HasSelectedLayer()          return self.canvas.HasSelectedLayer()
546    
547      def choose_color(self):      def has_selected_shapes(self):
548          """Run the color selection dialog and return the selected color.          """Return true if a shape is currently selected"""
549            return self.canvas.HasSelectedShapes()
550    
551          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):  
552          layer = self.current_layer()          layer = self.current_layer()
553          if layer is not None:          if layer is not None:
554              color = self.choose_color()              layer.SetVisible(0)
             if color is not None:  
                 layer.SetFill(color)  
555    
556      def LayerTransparentFill(self):      def ShowLayer(self):
557          layer = self.current_layer()          layer = self.current_layer()
558          if layer is not None:          if layer is not None:
559              layer.SetFill(None)              layer.SetVisible(1)
560    
561      def LayerOutlineColor(self):      def DuplicateLayer(self):
562            """Ceate a new layer above the selected layer with the same shapestore
563            """
564          layer = self.current_layer()          layer = self.current_layer()
565          if layer is not None:          if layer is not None and hasattr(layer, "ShapeStore"):
566              color = self.choose_color()              new_layer = Layer(_("Copy of `%s'") % layer.Title(),
567              if color is not None:                                layer.ShapeStore(),
568                  layer.SetStroke(color)                                projection = layer.GetProjection())
569                new_classification = copy.deepcopy(layer.GetClassification())
570                new_layer.SetClassification(new_classification)
571                self.Map().AddLayer(new_layer)
572    
573      def LayerNoOutline(self):      def CanDuplicateLayer(self):
574            """Return whether the DuplicateLayer method can create a duplicate"""
575          layer = self.current_layer()          layer = self.current_layer()
576          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)  
577    
578      def LayerShowTable(self):      def LayerShowTable(self):
579          layer = self.current_layer()          layer = self.current_layer()
# Line 418  class MainWindow(wxFrame): Line 582  class MainWindow(wxFrame):
582              name = "table_view" + str(id(table))              name = "table_view" + str(id(table))
583              dialog = self.get_open_dialog(name)              dialog = self.get_open_dialog(name)
584              if dialog is None:              if dialog is None:
585                  dialog = tableview.TableFrame(self, self.interactor, name,                  dialog = tableview.LayerTableFrame(self, name,
586                                                "Table: %s" % layer.Title(),                                           _("Layer Table: %s") % layer.Title(),
587                                                layer, table)                                           layer, table)
588                  self.add_dialog(name, dialog)                  self.add_dialog(name, dialog)
589                  dialog.Show(true)                  dialog.Show(True)
590              else:              else:
591                  # FIXME: bring dialog to front here                  # FIXME: bring dialog to front here
592                  pass                  pass
593    
594      def Projection(self):      def MapProjection(self):
595          map = self.canvas.Map()  
596          proj = map.projection          name = "map_projection"
597          if proj is None:          dialog = self.get_open_dialog(name)
598              proj4Dlg = proj4dialog.Proj4Dialog(NULL, None, map.BoundingBox())  
599          else:          if dialog is None:
600              proj4Dlg = proj4dialog.Proj4Dialog(NULL, map.projection.params,              map = self.canvas.Map()
601                                                 map.BoundingBox())              dialog = projdialog.ProjFrame(self, name,
602          if proj4Dlg.ShowModal() == wxID_OK:                       _("Map Projection: %s") % map.Title(), map)
603              params = proj4Dlg.GetParams()              self.add_dialog(name, dialog)
604              if params is not None:              dialog.Show()
605                  proj = Projection(params)          dialog.Raise()
606    
607        def LayerProjection(self):
608    
609            layer = self.current_layer()
610    
611            name = "layer_projection" + str(id(layer))
612            dialog = self.get_open_dialog(name)
613    
614            if dialog is None:
615                map = self.canvas.Map()
616                dialog = projdialog.ProjFrame(self, name,
617                         _("Layer Projection: %s") % layer.Title(), layer)
618                self.add_dialog(name, dialog)
619                dialog.Show()
620            dialog.Raise()
621    
622        def LayerEditProperties(self):
623    
624            #
625            # the menu option for this should only be available if there
626            # is a current layer, so we don't need to check if the
627            # current layer is None
628            #
629    
630            layer = self.current_layer()
631            self.OpenLayerProperties(layer)
632    
633        def OpenLayerProperties(self, layer, group = None):
634            name = "layer_properties" + str(id(layer))
635            dialog = self.get_open_dialog(name)
636    
637            if dialog is None:
638                dialog = Classifier(self, name, self.Map(), layer, group)
639                self.add_dialog(name, dialog)
640                dialog.Show()
641            dialog.Raise()
642    
643        def LayerJoinTable(self):
644            layer = self.canvas.SelectedLayer()
645            if layer is not None:
646                dlg = JoinDialog(self, _("Join Layer with Table"),
647                                 self.application.session,
648                                 layer = layer)
649                dlg.ShowModal()
650    
651        def LayerUnjoinTable(self):
652            layer = self.canvas.SelectedLayer()
653            if layer is not None:
654                orig_store = layer.ShapeStore().OrigShapeStore()
655                if orig_store:
656                    layer.SetShapeStore(orig_store)
657    
658        def ShowLegend(self):
659            if not self.LegendShown():
660                self.ToggleLegend()
661    
662        def ToggleLegend(self):
663            """Show the legend if it's not shown otherwise hide it again"""
664            name = "legend"
665            dialog = self.FindRegisteredDock(name)
666    
667            if dialog is None:
668                dialog = self.CreateDock(name, -1, _("Legend"), wxLAYOUT_LEFT)
669                legend.LegendPanel(dialog, None, self)
670                dialog.Dock()
671                dialog.GetPanel().SetMap(self.Map())
672                dialog.Show()
673            else:
674                dialog.Show(not dialog.IsShown())
675    
676            self.canvas.FitMapToWindow()
677    
678        def LegendShown(self):
679            """Return true iff the legend is currently open"""
680            dialog = self.FindRegisteredDock("legend")
681            return dialog is not None and dialog.IsShown()
682    
683        def TableOpen(self):
684            dlg = wxFileDialog(self, _("Open Table"), ".", "",
685                               _("DBF Files (*.dbf)") + "|*.dbf|" +
686                               #_("CSV Files (*.csv)") + "|*.csv|" +
687                               _("All Files (*.*)") + "|*.*",
688                               wxOPEN)
689            if dlg.ShowModal() == wxID_OK:
690                filename = dlg.GetPath()
691                dlg.Destroy()
692                try:
693                    table = self.application.session.OpenTableFile(filename)
694                except IOError:
695                    # the layer couldn't be opened
696                    self.RunMessageBox(_("Open Table"),
697                                       _("Can't open the file '%s'.") % filename)
698              else:              else:
699                  proj = None                  self.ShowTableView(table)
700              map.SetProjection(proj)  
701          proj4Dlg.Destroy()      def TableClose(self):
702            tables = self.application.session.UnreferencedTables()
703    
704            lst = [(t.Title(), t) for t in tables]
705            lst.sort()
706            titles = [i[0] for i in lst]
707            dlg = wxMultipleChoiceDialog(self, _("Pick the tables to close:"),
708                                         _("Close Table"), titles,
709                                         size = (400, 300),
710                                         style = wxDEFAULT_DIALOG_STYLE |
711                                                 wxRESIZE_BORDER)
712            if dlg.ShowModal() == wxID_OK:
713                for i in dlg.GetValue():
714                    self.application.session.RemoveTable(lst[i][1])
715    
716    
717        def TableShow(self):
718            """Offer a multi-selection dialog for tables to be displayed
719    
720            The windows for the selected tables are opened or brought to
721            the front.
722            """
723            tables = self.application.session.Tables()
724    
725            lst = [(t.Title(), t) for t in tables]
726            lst.sort()
727            titles = [i[0] for i in lst]
728            dlg = wxMultipleChoiceDialog(self, _("Pick the table to show:"),
729                                         _("Show Table"), titles,
730                                         size = (400,300),
731                                         style = wxDEFAULT_DIALOG_STYLE |
732                                                 wxRESIZE_BORDER)
733            if (dlg.ShowModal() == wxID_OK):
734                for i in dlg.GetValue():
735                    # XXX: if the table belongs to a layer, open a
736                    # LayerTableFrame instead of QueryTableFrame
737                    self.ShowTableView(lst[i][1])
738    
739        def TableJoin(self):
740            dlg = JoinDialog(self, _("Join Tables"), self.application.session)
741            dlg.ShowModal()
742    
743        def ShowTableView(self, table):
744            """Open a table view for the table and optionally"""
745            name = "table_view%d" % id(table)
746            dialog = self.get_open_dialog(name)
747            if dialog is None:
748                dialog = tableview.QueryTableFrame(self, name,
749                                                   _("Table: %s") % table.Title(),
750                                                   table)
751                self.add_dialog(name, dialog)
752                dialog.Show(True)
753            # FIXME: else bring dialog to front
754    
755        def TableRename(self):
756            """Let the user rename a table"""
757    
758            # First, let the user select a table
759            tables = self.application.session.Tables()
760            lst = [(t.Title(), t) for t in tables]
761            lst.sort()
762            titles = [i[0] for i in lst]
763            dlg = wxMultipleChoiceDialog(self, _("Pick the table to rename:"),
764                                         _("Rename Table"), titles,
765                                         size = (400,300),
766                                         style = wxDEFAULT_DIALOG_STYLE |
767                                                 wxRESIZE_BORDER)
768            if (dlg.ShowModal() == wxID_OK):
769                to_rename = [lst[i][1] for i in dlg.GetValue()]
770                dlg.Destroy()
771            else:
772                to_rename = []
773    
774            # Second, let the user rename the layers
775            for table in to_rename:
776                dlg = wxTextEntryDialog(self, "Table Title: ", "Rename Table",
777                                        table.Title())
778                try:
779                    if dlg.ShowModal() == wxID_OK:
780                        title = dlg.GetValue()
781                        if title != "":
782                            table.SetTitle(title)
783    
784                            # Make sure the session is marked as modified.
785                            # FIXME: This should be handled automatically,
786                            # but that requires more changes to the tables
787                            # than I have time for currently.
788                            self.application.session.changed()
789                finally:
790                    dlg.Destroy()
791    
792    
793      def ZoomInTool(self):      def ZoomInTool(self):
794          self.canvas.ZoomInTool()          self.canvas.ZoomInTool()
# Line 463  class MainWindow(wxFrame): Line 809  class MainWindow(wxFrame):
809      def FullExtent(self):      def FullExtent(self):
810          self.canvas.FitMapToWindow()          self.canvas.FitMapToWindow()
811    
812        def FullLayerExtent(self):
813            self.canvas.FitLayerToWindow(self.current_layer())
814    
815        def FullSelectionExtent(self):
816            self.canvas.FitSelectedToWindow()
817    
818        def ExportMap(self):
819            self.canvas.Export()
820    
821      def PrintMap(self):      def PrintMap(self):
822          self.canvas.Print()          self.canvas.Print()
823    
824      def identify_view_on_demand(self, layer, shape):      def RenameMap(self):
825            dlg = wxTextEntryDialog(self, "Map Title: ", "Rename Map",
826                                    self.Map().Title())
827            if dlg.ShowModal() == wxID_OK:
828                title = dlg.GetValue()
829                if title != "":
830                    self.Map().SetTitle(title)
831                    self.__SetTitle(title)
832    
833            dlg.Destroy()
834    
835        def RenameLayer(self):
836            """Let the user rename the currently selected layer"""
837            layer = self.current_layer()
838            if layer is not None:
839                dlg = wxTextEntryDialog(self, "Layer Title: ", "Rename Layer",
840                                        layer.Title())
841                try:
842                    if dlg.ShowModal() == wxID_OK:
843                        title = dlg.GetValue()
844                        if title != "":
845                            layer.SetTitle(title)
846                finally:
847                    dlg.Destroy()
848    
849        def identify_view_on_demand(self, layer, shapes):
850            """Subscribed to the canvas' SHAPES_SELECTED message
851    
852            If the current tool is the identify tool, at least one shape is
853            selected and the identify dialog is not shown, show the dialog.
854            """
855            # If the selection has become empty we don't need to do
856            # anything. Otherwise it could happen that the dialog was popped
857            # up when the selection became empty, e.g. when a new selection
858            # is opened while the identify tool is active and dialog had
859            # been closed
860            if not shapes:
861                return
862    
863          name = "identify_view"          name = "identify_view"
864          if self.canvas.CurrentTool() == "IdentifyTool":          if self.canvas.CurrentTool() == "IdentifyTool":
865              if not self.dialog_open(name):              if not self.dialog_open(name):
866                  dialog = identifyview.IdentifyView(self, self.interactor, name)                  dialog = identifyview.IdentifyView(self, name)
867                  self.add_dialog(name, dialog)                  self.add_dialog(name, dialog)
868                  dialog.Show(true)                  dialog.Show(True)
869              else:              else:
870                  # FIXME: bring dialog to front?                  # FIXME: bring dialog to front?
871                  pass                  pass
872    
873        def __SetTitle(self, title):
874            self.SetTitle("Thuban - " + title)
875    
876  #  #
877  # Define all the commands available in the main window  # Define all the commands available in the main window
878  #  #
# Line 484  class MainWindow(wxFrame): Line 880  class MainWindow(wxFrame):
880    
881  # Helper functions to define common command implementations  # Helper functions to define common command implementations
882  def call_method(context, methodname, *args):  def call_method(context, methodname, *args):
883      """Call the context's method methodname with args *args"""      """Call the mainwindow's method methodname with args *args"""
884      apply(getattr(context, methodname), args)      apply(getattr(context.mainwindow, methodname), args)
885    
886  def _method_command(name, title, method, helptext = "",  def _method_command(name, title, method, helptext = "",
887                      icon = "", sensitive = None):                      icon = "", sensitive = None, checked = None):
888      """Add a command implemented by a method of the context object"""      """Add a command implemented by a method of the mainwindow object"""
889      registry.Add(Command(name, title, call_method, args=(method,),      registry.Add(Command(name, title, call_method, args=(method,),
890                           helptext = helptext, icon = icon,                           helptext = helptext, icon = icon,
891                           sensitive = sensitive))                           sensitive = sensitive, checked = checked))
892    
893    def make_check_current_tool(toolname):
894        """Return a function that tests if the currently active tool is toolname
895    
896        The returned function can be called with the context and returns
897        true iff the currently active tool's name is toolname. It's directly
898        usable as the 'checked' callback of a command.
899        """
900        def check_current_tool(context, name=toolname):
901            return context.mainwindow.canvas.CurrentTool() == name
902        return check_current_tool
903    
904  def _tool_command(name, title, method, toolname, helptext = "",  def _tool_command(name, title, method, toolname, helptext = "",
905                    icon = ""):                    icon = "", sensitive = None):
906      """Add a tool command"""      """Add a tool command"""
907      def check_current_tool(context, name=toolname):      registry.Add(ToolCommand(name, title, call_method, args=(method,),
908          return context.canvas.CurrentTool() == name                               helptext = helptext, icon = icon,
909      registry.Add(Command(name, title, call_method, args=(method,),                               checked = make_check_current_tool(toolname),
910                           helptext = helptext, icon = icon,                               sensitive = sensitive))
                          checked = check_current_tool))  
911    
912  def _has_selected_layer(context):  def _has_selected_layer(context):
913      """Return true if a layer is selected in the context"""      """Return true if a layer is selected in the context"""
914      return context.has_selected_layer()      return context.mainwindow.has_selected_layer()
915    
916    def _has_selected_shapes(context):
917        """Return true if a layer is selected in the context"""
918        return context.mainwindow.has_selected_shapes()
919    
920    def _can_remove_layer(context):
921        return context.mainwindow.CanRemoveLayer()
922    
923    def _has_tree_window_shown(context):
924        """Return true if the tree window is shown"""
925        return context.mainwindow.SessionTreeShown()
926    
927    def _has_visible_map(context):
928        """Return true iff theres a visible map in the mainwindow.
929    
930        A visible map is a map with at least one visible layer."""
931        map = context.mainwindow.Map()
932        if map is not None:
933            for layer in map.Layers():
934                if layer.Visible():
935                    return 1
936        return 0
937    
938    def _has_legend_shown(context):
939        """Return true if the legend window is shown"""
940        return context.mainwindow.LegendShown()
941    
942    
943  # File menu  # File menu
944  _method_command("new_session", "&New Session", "NewSession")  _method_command("new_session", _("&New Session"), "NewSession",
945  _method_command("open_session", "&Open Session", "OpenSession")                  helptext = _("Start a new session"))
946  _method_command("save_session", "&Save Session", "SaveSession")  _method_command("open_session", _("&Open Session..."), "OpenSession",
947  _method_command("save_session_as", "Save Session &As", "SaveSessionAs")                  helptext = _("Open a session file"))
948  _method_command("show_session_tree", "Show Session &Tree", "ShowSessionTree")  _method_command("save_session", _("&Save Session"), "SaveSession",
949  _method_command("exit", "&Exit", "Exit")                  helptext =_("Save this session to the file it was opened from"))
950    _method_command("save_session_as", _("Save Session &As..."), "SaveSessionAs",
951                    helptext = _("Save this session to a new file"))
952    _method_command("toggle_session_tree", _("Session &Tree"), "ToggleSessionTree",
953                    checked = _has_tree_window_shown,
954                    helptext = _("Toggle on/off the session tree analysis window"))
955    _method_command("toggle_legend", _("Legend"), "ToggleLegend",
956                    checked = _has_legend_shown,
957                    helptext = _("Toggle Legend on/off"))
958    _method_command("exit", _("E&xit"), "Exit",
959                    helptext = _("Finish working with Thuban"))
960    
961  # Help menu  # Help menu
962  _method_command("help_about", "&About", "About")  _method_command("help_about", _("&About..."), "About",
963                    helptext = _("Info about Thuban authors, version and modules"))
964    
965    
966  # Map menu  # Map menu
967  _method_command("map_projection", "Pro&jection", "Projection")  _method_command("map_projection", _("Pro&jection..."), "MapProjection",
968                    helptext = _("Set or change the map projection"))
969    
970  _tool_command("map_zoom_in_tool", "&Zoom in", "ZoomInTool", "ZoomInTool",  _tool_command("map_zoom_in_tool", _("&Zoom in"), "ZoomInTool", "ZoomInTool",
971                helptext = "Switch to map-mode 'zoom-in'", icon = "zoom_in")                helptext = _("Switch to map-mode 'zoom-in'"), icon = "zoom_in",
972  _tool_command("map_zoom_out_tool", "Zoom &out", "ZoomOutTool", "ZoomOutTool",                sensitive = _has_visible_map)
973                helptext = "Switch to map-mode 'zoom-out'", icon = "zoom_out")  _tool_command("map_zoom_out_tool", _("Zoom &out"), "ZoomOutTool", "ZoomOutTool",
974  _tool_command("map_pan_tool", "&Pan", "PanTool", "PanTool",                helptext = _("Switch to map-mode 'zoom-out'"), icon = "zoom_out",
975                helptext = "Switch to map-mode 'pan'", icon = "pan")                sensitive = _has_visible_map)
976  _tool_command("map_identify_tool", "&Identify", "IdentifyTool", "IdentifyTool",  _tool_command("map_pan_tool", _("&Pan"), "PanTool", "PanTool",
977                helptext = "Switch to map-mode 'identify'", icon = "identify")                helptext = _("Switch to map-mode 'pan'"), icon = "pan",
978  _tool_command("map_label_tool", "&Label", "LabelTool", "LabelTool",                sensitive = _has_visible_map)
979                helptext = "Add/Remove labels", icon = "label")  _tool_command("map_identify_tool", _("&Identify"), "IdentifyTool",
980  _method_command("map_full_extent", "&Full extent", "FullExtent",                "IdentifyTool",
981                 helptext = "Full Extent", icon = "fullextent")                helptext = _("Switch to map-mode 'identify'"), icon = "identify",
982  _method_command("map_print", "Prin&t", "PrintMap", helptext = "Print the map")                sensitive = _has_visible_map)
983    _tool_command("map_label_tool", _("&Label"), "LabelTool", "LabelTool",
984                  helptext = _("Add/Remove labels"), icon = "label",
985                  sensitive = _has_visible_map)
986    _method_command("map_full_extent", _("&Full extent"), "FullExtent",
987                   helptext = _("Zoom to the full map extent"), icon = "fullextent",
988                  sensitive = _has_visible_map)
989    _method_command("layer_full_extent", _("&Full layer extent"), "FullLayerExtent",
990                    helptext = _("Zoom to the full layer extent"),
991                    icon = "fulllayerextent", sensitive = _has_selected_layer)
992    _method_command("selected_full_extent", _("&Full selection extent"),
993                    "FullSelectionExtent",
994                    helptext = _("Zoom to the full selection extent"),
995                    icon = "fullselextent", sensitive = _has_selected_shapes)
996    _method_command("map_export", _("E&xport"), "ExportMap",
997                    helptext = _("Export the map to file"))
998    _method_command("map_print", _("Prin&t"), "PrintMap",
999                    helptext = _("Print the map"))
1000    _method_command("map_rename", _("&Rename..."), "RenameMap",
1001                    helptext = _("Rename the map"))
1002    _method_command("layer_add", _("&Add Layer..."), "AddLayer",
1003                    helptext = _("Add a new layer to the map"))
1004    _method_command("rasterlayer_add", _("&Add Image Layer..."), "AddRasterLayer",
1005                    helptext = _("Add a new image layer to the map"))
1006    _method_command("layer_remove", _("&Remove Layer"), "RemoveLayer",
1007                    helptext = _("Remove selected layer"),
1008                    sensitive = _can_remove_layer)
1009    
1010  # Layer menu  # Layer menu
1011  _method_command("layer_add", "&Add Layer", "AddLayer",  _method_command("layer_projection", _("Pro&jection..."), "LayerProjection",
1012                  helptext = "Add a new layer to active map")                  sensitive = _has_selected_layer,
1013  _method_command("layer_remove", "&Remove Layer", "RemoveLayer",                  helptext = _("Specify projection for selected layer"))
1014                  helptext = "Remove selected layer(s)",  _method_command("layer_duplicate", _("&Duplicate"), "DuplicateLayer",
1015                  sensitive = _has_selected_layer)                  helptext = _("Duplicate selected layer"),
1016  _method_command("layer_fill_color", "&Fill Color", "LayerFillColor",            sensitive = lambda context: context.mainwindow.CanDuplicateLayer())
1017                  helptext = "Set the fill color of selected layer(s)",  _method_command("layer_rename", _("Re&name ..."), "RenameLayer",
1018                  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_ourline_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)",  
1019                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1020  _method_command("layer_raise", "&Raise", "RaiseLayer",  _method_command("layer_raise", _("&Raise"), "RaiseLayer",
1021                  helptext = "Raise selected layer(s)",                  helptext = _("Raise selected layer"),
1022                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1023  _method_command("layer_lower", "&Lower", "LowerLayer",  _method_command("layer_lower", _("&Lower"), "LowerLayer",
1024                  helptext = "Lower selected layer(s)",                  helptext = _("Lower selected layer"),
1025                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1026  _method_command("layer_show", "&Show", "ShowLayer",  _method_command("layer_show", _("&Show"), "ShowLayer",
1027                  helptext = "Make selected layer(s) visible",                  helptext = _("Make selected layer visible"),
1028                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1029  _method_command("layer_hide", "&Hide", "HideLayer",  _method_command("layer_hide", _("&Hide"), "HideLayer",
1030                  helptext = "Make selected layer(s) unvisible",                  helptext = _("Make selected layer unvisible"),
1031                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1032  _method_command("layer_show_table", "Show Ta&ble", "LayerShowTable",  _method_command("layer_show_table", _("Show Ta&ble"), "LayerShowTable",
1033                  helptext = "Show the selected layer's table",                  helptext = _("Show the selected layer's table"),
1034                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1035    _method_command("layer_properties", _("&Properties..."), "LayerEditProperties",
1036                    sensitive = _has_selected_layer,
1037                    helptext = _("Edit the properties of the selected layer"))
1038    _method_command("layer_jointable", _("&Join Table..."), "LayerJoinTable",
1039                    sensitive = _has_selected_layer,
1040                    helptext = _("Join and attach a table to the selected layer"))
1041    
1042    def _can_unjoin(context):
1043        """Return whether the Layer/Unjoin command can be executed.
1044    
1045        This is the case if a layer is selected and that layer has a
1046        shapestore that has an original shapestore.
1047        """
1048        layer = context.mainwindow.SelectedLayer()
1049        if layer is None:
1050            return 0
1051        getstore = getattr(layer, "ShapeStore", None)
1052        if getstore is not None:
1053            return getstore().OrigShapeStore() is not None
1054        else:
1055            return 0
1056    _method_command("layer_unjointable", _("&Unjoin Table..."), "LayerUnjoinTable",
1057                    sensitive = _can_unjoin,
1058                    helptext = _("Undo the last join operation"))
1059    
1060    
1061    def _has_tables(context):
1062        return bool(context.session.Tables())
1063    
1064    # Table menu
1065    _method_command("table_open", _("&Open..."), "TableOpen",
1066                    helptext = _("Open a DBF-table from a file"))
1067    _method_command("table_close", _("&Close..."), "TableClose",
1068           sensitive = lambda context: bool(context.session.UnreferencedTables()),
1069                    helptext = _("Close one or more tables from a list"))
1070    _method_command("table_rename", _("&Rename..."), "TableRename",
1071                    sensitive = _has_tables,
1072                    helptext = _("Rename one or more tables"))
1073    _method_command("table_show", _("&Show..."), "TableShow",
1074                    sensitive = _has_tables,
1075                    helptext = _("Show one or more tables in a dialog"))
1076    _method_command("table_join", _("&Join..."), "TableJoin",
1077                    sensitive = _has_tables,
1078                    helptext = _("Join two tables creating a new one"))
1079    
1080    #  Export only under Windows ...
1081    map_menu = ["layer_add", "rasterlayer_add", "layer_remove", "map_rename",
1082                            None,
1083                            "map_projection",
1084                            None,
1085                            "map_zoom_in_tool", "map_zoom_out_tool",
1086                            "map_pan_tool",
1087                            "map_full_extent",
1088                            "layer_full_extent",
1089                            "selected_full_extent",
1090                            None,
1091                            "map_identify_tool", "map_label_tool",
1092                            None,
1093                            "toggle_legend",
1094                            None]
1095    if wxPlatform == '__WXMSW__':
1096        map_menu.append("map_export")
1097    map_menu.append("map_print")
1098    
1099    # the menu structure
1100    main_menu = Menu("<main>", "<main>",
1101                     [Menu("file", _("&File"),
1102                           ["new_session", "open_session", None,
1103                            "save_session", "save_session_as", None,
1104                            "toggle_session_tree", None,
1105                            "exit"]),
1106                      Menu("map", _("&Map"), map_menu),
1107                      Menu("layer", _("&Layer"),
1108                           ["layer_rename", "layer_duplicate",
1109                            None,
1110                            "layer_raise", "layer_lower",
1111                            None,
1112                            "layer_show", "layer_hide",
1113                            None,
1114                            "layer_projection",
1115                            None,
1116                            "layer_show_table",
1117                            "layer_jointable",
1118                            "layer_unjointable",
1119                            None,
1120                            "layer_properties"]),
1121                      Menu("table", _("&Table"),
1122                           ["table_open", "table_close", "table_rename",
1123                           None,
1124                           "table_show",
1125                           None,
1126                           "table_join"]),
1127                      Menu("help", _("&Help"),
1128                           ["help_about"])])
1129    
1130    # the main toolbar
1131    
1132    main_toolbar = Menu("<toolbar>", "<toolbar>",
1133                        ["map_zoom_in_tool", "map_zoom_out_tool", "map_pan_tool",
1134                         "map_full_extent",
1135                         "layer_full_extent",
1136                         "selected_full_extent",
1137                         None,
1138                         "map_identify_tool", "map_label_tool"])
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