/[thuban]/branches/WIP-pyshapelib-bramz/Thuban/UI/mainwindow.py
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revision 33 by bh, Thu Sep 6 15:31:31 2001 UTC revision 357 by bh, Mon Dec 9 10:32:27 2002 UTC
# Line 1  Line 1 
1  # Copyright (C) 2001 by Intevation GmbH  # Copyright (C) 2001, 2002 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]>
# Line 12  The main window Line 12  The main window
12    
13  __version__ = "$Revision$"  __version__ = "$Revision$"
14    
15  import sys, os  import os
16    
17  from wxPython.wx import *  from wxPython.wx import *
18    
19  import Thuban  import Thuban
20  from Thuban.Model.session import Session  from Thuban.Model.session import create_empty_session
 from Thuban.Model.map import Map  
21  from Thuban.Model.layer import Layer  from Thuban.Model.layer import Layer
22  from Thuban.Model.color import Color  from Thuban.Model.color import Color
23  from Thuban.Model.proj import Projection  from Thuban.Model.proj import Projection
# Line 27  import view Line 26  import view
26  import tree  import tree
27  import proj4dialog  import proj4dialog
28  import tableview, identifyview  import tableview, identifyview
29    from menu import Menu
30    
31  import main  from context import Context
32  from command import registry, Command  from command import registry, Command, ToolCommand
33  from messages import SELECTED_SHAPE  from messages import SELECTED_SHAPE, VIEW_POSITION
34    
35    
36  # the directory where the toolbar icons are stored  # the directory where the toolbar icons are stored
# Line 40  bitmapext = ".xpm" Line 40  bitmapext = ".xpm"
40    
41  class MainWindow(wxFrame):  class MainWindow(wxFrame):
42    
43      def __init__(self, parent, ID, interactor):      def __init__(self, parent, ID, title, application, interactor,
44          wxFrame.__init__(self, parent, ID, 'Thuban',                   initial_message = None, size = wxSize(-1, -1)):
45                           wxDefaultPosition, wxSize(400, 300))          wxFrame.__init__(self, parent, ID, title, wxDefaultPosition, size)
46    
47            self.application = application
48            self.interactor = interactor
49    
50          self.CreateStatusBar()          self.CreateStatusBar()
51          self.SetStatusText("This is the wxPython-based "          if initial_message:
52                        "Graphical User Interface for exploring geographic data")              self.SetStatusText(initial_message)
53    
54          self.identify_view = None          self.identify_view = None
55    
56          self.init_ids()          self.init_ids()
57    
58          menuBar = wxMenuBar()          # creat the menubar from the main_menu description
59            self.SetMenuBar(self.build_menu_bar(main_menu))
         menu = wxMenu()  
         menuBar.Append(menu, "&File");  
         for name in ["new_session", "open_session", None,  
                      "save_session", "save_session_as", None,  
                      "exit"]:  
             self.add_menu_command(menu, name)  
   
         menu = wxMenu()  
         menuBar.Append(menu, "&Map");  
         for name in ["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_add", "layer_remove",  
                      None,  
                      "layer_fill_color", "layer_transparent_fill",  
                      "layer_ourline_color", "layer_no_outline",  
                      None,  
                      "layer_raise", "layer_lower",  
                      None,  
                      "layer_show", "layer_hide",  
                      None,  
                      "layer_show_table"]:  
             self.add_menu_command(menu, name)  
   
         menu = wxMenu()  
         menuBar.Append(menu, "&Help");  
         self.add_menu_command(menu, "help_about")  
   
         self.SetMenuBar(menuBar)  
60    
61          # toolbar          # Similarly, create the toolbar from main_toolbar
62          toolbar = self.CreateToolBar(wxTB_3DBUTTONS)          toolbar = self.build_toolbar(main_toolbar)
         for name in ["map_zoom_in_tool", "map_zoom_out_tool", "map_pan_tool",  
                      "map_identify_tool", "map_label_tool"]:  
             self.add_toolbar_command(toolbar, name)  
63          # call Realize to make sure that the tools appear.          # call Realize to make sure that the tools appear.
64          toolbar.Realize()          toolbar.Realize()
65    
66          # Create the map canvas          # Create the map canvas
67          canvas = view.MapCanvas(self, -1, interactor)          canvas = view.MapCanvas(self, -1, interactor)
68            canvas.Subscribe(VIEW_POSITION, self.view_position_changed)
69          self.canvas = canvas          self.canvas = canvas
70    
71          self.init_dialogs()          self.init_dialogs()
# Line 116  class MainWindow(wxFrame): Line 79  class MainWindow(wxFrame):
79          self.current_id = 6000          self.current_id = 6000
80          self.id_to_name = {}          self.id_to_name = {}
81          self.name_to_id = {}          self.name_to_id = {}
82            self.events_bound = {}
83    
84      def get_id(self, name):      def get_id(self, name):
85          """Return the wxWindows id for the command named name.          """Return the wxWindows id for the command named name.
# Line 128  class MainWindow(wxFrame): Line 92  class MainWindow(wxFrame):
92              self.name_to_id[name] = ID              self.name_to_id[name] = ID
93              self.id_to_name[ID] = name              self.id_to_name[ID] = name
94          return ID          return ID
95            
96        def bind_command_events(self, command, ID):
97            """Bind the necessary events for the given command and ID"""
98            if not self.events_bound.has_key(ID):
99                # the events haven't been bound yet
100                EVT_MENU(self, ID, self.invoke_command)
101                if command.IsDynamic():
102                    EVT_UPDATE_UI(self, ID, self.update_command_ui)
103    
104        def build_menu_bar(self, menudesc):
105            """Build and return the menu bar from the menu description"""
106            menu_bar = wxMenuBar()
107    
108            for item in menudesc.items:
109                # here the items must all be Menu instances themselves
110                menu_bar.Append(self.build_menu(item), item.title)
111    
112            return menu_bar
113    
114        def build_menu(self, menudesc):
115            """Return a wxMenu built from the menu description menudesc"""
116            wxmenu = wxMenu()
117            last = None
118            for item in menudesc.items:
119                if item is None:
120                    # a separator. Only add one if the last item was not a
121                    # separator
122                    if last is not None:
123                        wxmenu.AppendSeparator()
124                elif isinstance(item, Menu):
125                    # a submenu
126                    wxmenu.AppendMenu(wxNewId(), item.title, self.build_menu(item))
127                else:
128                    # must the name the name of a command
129                    self.add_menu_command(wxmenu, item)
130                last = item
131            return wxmenu
132    
133        def build_toolbar(self, toolbardesc):
134            """Build and return the main toolbar window from a toolbar description
135    
136            The parameter should be an instance of the Menu class but it
137            should not contain submenus.
138            """
139            toolbar = self.CreateToolBar(wxTB_3DBUTTONS)
140    
141            # set the size of the tools' bitmaps. Not needed on wxGTK, but
142            # on Windows, although it doesn't work very well there. It seems
143            # that only 16x16 icons are really supported on windows.
144            # We probably shouldn't hardwire the bitmap size here.
145            toolbar.SetToolBitmapSize(wxSize(24, 24))
146    
147            for item in toolbardesc.items:
148                if item is None:
149                    toolbar.AddSeparator()
150                else:
151                    # assume it's a string.
152                    self.add_toolbar_command(toolbar, item)
153    
154            return toolbar
155    
156      def add_menu_command(self, menu, name):      def add_menu_command(self, menu, name):
157          """Add the command with name name to the menu menu.          """Add the command with name name to the menu menu.
158    
# Line 142  class MainWindow(wxFrame): Line 166  class MainWindow(wxFrame):
166                  ID = self.get_id(name)                  ID = self.get_id(name)
167                  menu.Append(ID, command.Title(), command.HelpText(),                  menu.Append(ID, command.Title(), command.HelpText(),
168                              command.IsCheckCommand())                              command.IsCheckCommand())
169                  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)  
170              else:              else:
171                  print "Unknown command %s" % name                  print "Unknown command %s" % name
172    
# Line 166  class MainWindow(wxFrame): Line 188  class MainWindow(wxFrame):
188                  toolbar.AddTool(ID, bitmap,                  toolbar.AddTool(ID, bitmap,
189                                  shortHelpString = command.HelpText(),                                  shortHelpString = command.HelpText(),
190                                  isToggle = command.IsCheckCommand())                                  isToggle = command.IsCheckCommand())
191                    self.bind_command_events(command, ID)
192              else:              else:
193                  print "Unknown command %s" % name                  print "Unknown command %s" % name
194    
195        def Context(self):
196            """Return the context object for a command invoked from this window
197            """
198            return Context(self.application, self.application.Session(), self)
199    
200      def invoke_command(self, event):      def invoke_command(self, event):
201          name = self.id_to_name.get(event.GetId())          name = self.id_to_name.get(event.GetId())
202          if name is not None:          if name is not None:
203              command = registry.Command(name)              command = registry.Command(name)
204              command.Execute(self)              command.Execute(self.Context())
205          else:          else:
206              print "Unknown command ID %d" % event.GetId()              print "Unknown command ID %d" % event.GetId()
207    
208      def update_command_ui(self, event):      def update_command_ui(self, event):
209          #print "update_command_ui", self.id_to_name[event.GetId()]          #print "update_command_ui", self.id_to_name[event.GetId()]
210            context = self.Context()
211          command = registry.Command(self.id_to_name[event.GetId()])          command = registry.Command(self.id_to_name[event.GetId()])
212          if command is not None:          if command is not None:
213              event.Enable(command.Sensitive(self))              sensitive = command.Sensitive(context)
214              event.SetText(command.DynText(self))              event.Enable(sensitive)
215                if command.IsTool() and not sensitive and command.Checked(context):
216                    # When a checked tool command is disabled deselect all
217                    # tools. Otherwise the tool would remain active but it
218                    # might lead to errors if the tools stays active. This
219                    # problem occurred in GREAT-ER and this fixes it, but
220                    # it's not clear to me whether this is really the best
221                    # way to do it (BH, 20021206).
222                    self.canvas.SelectTool(None)
223                event.SetText(command.DynText(context))
224              if command.IsCheckCommand():              if command.IsCheckCommand():
225                  event.Check(command.Checked(self))                      event.Check(command.Checked(context))
226    
227      def RunMessageBox(self, title, text, flags = wxOK | wxICON_INFORMATION):      def RunMessageBox(self, title, text, flags = wxOK | wxICON_INFORMATION):
228          """Run a modla message box with the given text, title and flags          """Run a modal message box with the given text, title and flags
229          and return the result"""          and return the result"""
230          dlg = wxMessageDialog(self, text, title, flags)          dlg = wxMessageDialog(self, text, title, flags)
231            dlg.CenterOnParent()
232          result = dlg.ShowModal()          result = dlg.ShowModal()
233          dlg.Destroy()          dlg.Destroy()
234          return result          return result
# Line 215  class MainWindow(wxFrame): Line 254  class MainWindow(wxFrame):
254      def get_open_dialog(self, name):      def get_open_dialog(self, name):
255          return self.dialogs.get(name)          return self.dialogs.get(name)
256    
257        def view_position_changed(self):
258            pos = self.canvas.CurrentPosition()
259            if pos is not None:
260                text = "(%10.10g, %10.10g)" % pos
261            else:
262                text = ""
263            self.set_position_text(text)
264    
265        def set_position_text(self, text):
266            """Set the statusbar text showing the current position.
267    
268            By default the text is shown in field 0 of the status bar.
269            Override this method in derived classes to put it into a
270            different field of the statusbar.
271            """
272            self.SetStatusText(text)
273    
274        def save_modified_session(self, can_veto = 1):
275            """If the current session has been modified, ask the user
276            whether to save it and do so if requested. Return the outcome of
277            the dialog (either wxID_OK, wxID_CANCEL or wxID_NO). If the
278            dialog wasn't run return wxID_NO.
279    
280            If the can_veto parameter is true (default) the dialog includes
281            a cancel button, otherwise not.
282            """
283            if self.application.session.WasModified():
284                flags = wxYES_NO | wxICON_QUESTION
285                if can_veto:
286                    flags = flags | wxCANCEL
287                result = self.RunMessageBox("Exit",
288                                            ("The session has been modified."
289                                             " Do you want to save it?"),
290                                            flags)
291                if result == wxID_YES:
292                    self.SaveSession()
293            else:
294                result = wxID_NO
295            return result
296    
297      def NewSession(self):      def NewSession(self):
298          session = Session("")          self.save_modified_session()
299          session.AddMap(Map(""))          self.application.SetSession(create_empty_session())
         main.app.SetSession(session)  
300    
301      def OpenSession(self):      def OpenSession(self):
302            self.save_modified_session()
303          dlg = wxFileDialog(self, "Select a session file", ".", "",          dlg = wxFileDialog(self, "Select a session file", ".", "",
304                             "*.session", wxOPEN)                             "*.thuban", wxOPEN)
305          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wxID_OK:
306              main.app.OpenSession(dlg.GetPath())              self.application.OpenSession(dlg.GetPath())
307          dlg.Destroy()          dlg.Destroy()
308    
309      def SaveSession(self):      def SaveSession(self):
310          main.app.SaveSession()          if self.application.session.filename == None:
311                self.SaveSessionAs()
312            self.application.SaveSession()
313    
314      def SaveSessionAs(self):      def SaveSessionAs(self):
315          dlg = wxFileDialog(self, "Enter a filename for session", ".", "",          dlg = wxFileDialog(self, "Enter a filename for session", ".", "",
316                             "*.session", wxOPEN)                             "*.thuban", wxOPEN)
317          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wxID_OK:
318              main.app.session.SetFilename(dlg.GetPath())              self.application.session.SetFilename(dlg.GetPath())
319              main.app.SaveSession()              self.application.SaveSession()
320          dlg.Destroy()          dlg.Destroy()
321    
322      def Exit(self):      def Exit(self):
323          self.Close(false)          self.Close(false)
324    
325      def OnClose(self, event):      def OnClose(self, event):
326          veto = 0          result = self.save_modified_session(can_veto = event.CanVeto())
327          if main.app.session.WasModified():          if result == wxID_CANCEL:
             flags = wxYES_NO | wxICON_QUESTION  
             if event.CanVeto():  
                 flags = flags | wxCANCEL  
             result = self.RunMessageBox("Exit",  
                                         ("The session has been modified."  
                                          " Do you want to save it?"),  
                                         flags)  
             if result == wxID_YES:  
                 self.SaveSession()  
             elif result == wxID_CANCEL:  
                 veto = 1  
   
         if veto:  
328              event.Veto()              event.Veto()
329          else:          else:
330                # FIXME: it would be better to tie the unsubscription to
331                # wx's destroy event, but that isn't implemented for wxGTK
332                # yet.
333                self.canvas.Unsubscribe(VIEW_POSITION, self.view_position_changed)
334              self.Destroy()              self.Destroy()
335    
336      def SetMap(self, map):      def SetMap(self, map):
337          self.canvas.SetMap(map)          self.canvas.SetMap(map)
338    
339        def Map(self):
340            """Return the map displayed by this mainwindow"""
341            return self.canvas.Map()
342    
343        def ShowSessionTree(self):
344            name = "session_tree"
345            dialog = self.get_open_dialog(name)
346            if dialog is None:
347                dialog = tree.SessionTreeView(self, self.application, name)
348                self.add_dialog(name, dialog)
349                dialog.Show(true)
350            else:
351                # FIXME: bring dialog to front here
352                pass
353    
354      def About(self):      def About(self):
355          self.RunMessageBox("About",          self.RunMessageBox("About",
356                             ("Thuban is a program for\n"                             ("Thuban is a program for\n"
357                              "exploring geographic data.\n"                              "exploring geographic data.\n"
358                              "Copyright (C) 2001 Intevation GmbH.\n"                              "Copyright (C) 2001, 2002 Intevation GmbH.\n"
359                              "Thuban is licensed under the GPL"),                              "Thuban is licensed under the GPL"),
360                             wxOK | wxICON_INFORMATION)                             wxOK | wxICON_INFORMATION)
361    
362      def AddLayer(self):      def AddLayer(self):
363          dlg = wxFileDialog(self, "Select a session file", ".", "", "*.*",          dlg = wxFileDialog(self, "Select a data file", ".", "", "*.*",
364                             wxOPEN)                             wxOPEN)
365          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wxID_OK:
366              filename = dlg.GetPath()              filename = dlg.GetPath()
# Line 299  class MainWindow(wxFrame): Line 386  class MainWindow(wxFrame):
386          if layer is not None:          if layer is not None:
387              self.canvas.Map().RemoveLayer(layer)              self.canvas.Map().RemoveLayer(layer)
388    
389        def CanRemoveLayer(self):
390            """Return true if the currently selected layer can be deleted.
391    
392            If no layer is selected return false.
393    
394            The return value of this method determines whether the remove
395            layer command is sensitive in menu.
396            """
397            layer = self.current_layer()
398            if layer is not None:
399                return self.canvas.Map().CanRemoveLayer(layer)
400            return 0
401    
402      def RaiseLayer(self):      def RaiseLayer(self):
403          layer = self.current_layer()          layer = self.current_layer()
404          if layer is not None:          if layer is not None:
405              self.canvas.Map().RaiseLayer(layer)              self.canvas.Map().RaiseLayer(layer)
406            
407      def LowerLayer(self):      def LowerLayer(self):
408          layer = self.current_layer()          layer = self.current_layer()
409          if layer is not None:          if layer is not None:
# Line 314  class MainWindow(wxFrame): Line 414  class MainWindow(wxFrame):
414    
415          If no layer is selected, return None          If no layer is selected, return None
416          """          """
417          tree = main.app.tree.tree          return self.interactor.SelectedLayer()
         layer = tree.GetPyData(tree.GetSelection())  
         if isinstance(layer, Layer):  
             return layer  
         return None  
418    
419      def has_selected_layer(self):      def has_selected_layer(self):
420          """Return true if a layer is currently selected"""          """Return true if a layer is currently selected"""
421          tree = main.app.tree.tree          return self.interactor.HasSelectedLayer()
         layer = tree.GetPyData(tree.GetSelection())  
         return isinstance(layer, Layer)  
422    
423      def choose_color(self):      def choose_color(self):
424          """Run the color selection dialog and return the selected color.          """Run the color selection dialog and return the selected color.
# Line 383  class MainWindow(wxFrame): Line 477  class MainWindow(wxFrame):
477              name = "table_view" + str(id(table))              name = "table_view" + str(id(table))
478              dialog = self.get_open_dialog(name)              dialog = self.get_open_dialog(name)
479              if dialog is None:              if dialog is None:
480                  dialog = tableview.TableFrame(self, main.app.interactor, name,                  dialog = tableview.LayerTableFrame(self, self.interactor, name,
481                                                "Table: %s" % layer.Title(),                                                     "Table: %s" % layer.Title(),
482                                                layer, table)                                                     layer, table)
483                  self.add_dialog(name, dialog)                  self.add_dialog(name, dialog)
484                  dialog.Show(true)                  dialog.Show(true)
485              else:              else:
# Line 396  class MainWindow(wxFrame): Line 490  class MainWindow(wxFrame):
490          map = self.canvas.Map()          map = self.canvas.Map()
491          proj = map.projection          proj = map.projection
492          if proj is None:          if proj is None:
493              proj4Dlg = proj4dialog.Proj4Dialog(NULL, None)              proj4Dlg = proj4dialog.Proj4Dialog(NULL, None, map.BoundingBox())
494          else:          else:
495              proj4Dlg = proj4dialog.Proj4Dialog(NULL, map.projection.params)              proj4Dlg = proj4dialog.Proj4Dialog(NULL, map.projection.params,
496                                                   map.BoundingBox())
497          if proj4Dlg.ShowModal() == wxID_OK:          if proj4Dlg.ShowModal() == wxID_OK:
498              params = proj4Dlg.GetParams()              params = proj4Dlg.GetParams()
499              if params is not None:              if params is not None:
# Line 419  class MainWindow(wxFrame): Line 514  class MainWindow(wxFrame):
514    
515      def IdentifyTool(self):      def IdentifyTool(self):
516          self.canvas.IdentifyTool()          self.canvas.IdentifyTool()
517            self.identify_view_on_demand(None, None)
518    
519      def LabelTool(self):      def LabelTool(self):
520          self.canvas.LabelTool()          self.canvas.LabelTool()
# Line 433  class MainWindow(wxFrame): Line 529  class MainWindow(wxFrame):
529          name = "identify_view"          name = "identify_view"
530          if self.canvas.CurrentTool() == "IdentifyTool":          if self.canvas.CurrentTool() == "IdentifyTool":
531              if not self.dialog_open(name):              if not self.dialog_open(name):
532                  dialog = identifyview.IdentifyView(self, main.app.interactor,                  dialog = identifyview.IdentifyView(self, self.interactor, name)
                                                    name)  
533                  self.add_dialog(name, dialog)                  self.add_dialog(name, dialog)
534                  dialog.Show(true)                  dialog.Show(true)
535              else:              else:
# Line 448  class MainWindow(wxFrame): Line 543  class MainWindow(wxFrame):
543    
544  # Helper functions to define common command implementations  # Helper functions to define common command implementations
545  def call_method(context, methodname, *args):  def call_method(context, methodname, *args):
546      """Call the context's method methodname with args *args"""      """Call the mainwindow's method methodname with args *args"""
547      apply(getattr(context, methodname), args)      apply(getattr(context.mainwindow, methodname), args)
548    
549  def _method_command(name, title, method, helptext = "", sensitive = None):  def _method_command(name, title, method, helptext = "",
550      """Add a command implemented by a method of the context object"""                      icon = "", sensitive = None):
551        """Add a command implemented by a method of the mainwindow object"""
552      registry.Add(Command(name, title, call_method, args=(method,),      registry.Add(Command(name, title, call_method, args=(method,),
553                           helptext = helptext, sensitive = sensitive))                           helptext = helptext, icon = icon,
554                             sensitive = sensitive))
555    
556    def make_check_current_tool(toolname):
557        """Return a function that tests if the currently active tool is toolname
558    
559        The returned function can be called with the context and returns
560        true iff the currently active tool's name is toolname. It's directly
561        usable as the 'checked' callback of a command.
562        """
563        def check_current_tool(context, name=toolname):
564            return context.mainwindow.canvas.CurrentTool() == name
565        return check_current_tool
566    
567  def _tool_command(name, title, method, toolname, helptext = "",  def _tool_command(name, title, method, toolname, helptext = "",
568                    icon = ""):                    icon = "", sensitive = None):
569      """Add a tool command"""      """Add a tool command"""
570      def check_current_tool(context, name=toolname):      registry.Add(ToolCommand(name, title, call_method, args=(method,),
571          return context.canvas.CurrentTool() == name                               helptext = helptext, icon = icon,
572      registry.Add(Command(name, title, call_method, args=(method,),                               checked = make_check_current_tool(toolname),
573                           helptext = helptext, icon = icon,                               sensitive = sensitive))
                          checked = check_current_tool))  
574    
575  def _has_selected_layer(context):  def _has_selected_layer(context):
576      """Return true if a layer is selected in the context"""      """Return true if a layer is selected in the context"""
577      return context.has_selected_layer()      return context.mainwindow.has_selected_layer()
578    
579    def _can_remove_layer(context):
580        return context.mainwindow.CanRemoveLayer()
581    
582    def _has_tree_window_shown(context):
583        """Return true if the tree window is shown"""
584        return context.mainwindow.get_open_dialog("session_tree") is None
585    
586    def _has_visible_map(context):
587        """Return true iff theres a visible map in the mainwindow.
588    
589        A visible map is a map with at least one visible layer."""
590        map = context.mainwindow.Map()
591        if map is not None:
592            for layer in map.Layers():
593                if layer.Visible():
594                    return 1
595        return 0
596    
597    
598  # File menu  # File menu
599  _method_command("new_session", "&New Session", "NewSession")  _method_command("new_session", "&New Session", "NewSession")
600  _method_command("open_session", "&Open Session", "OpenSession")  _method_command("open_session", "&Open Session", "OpenSession")
601  _method_command("save_session", "&Save Session", "SaveSession")  _method_command("save_session", "&Save Session", "SaveSession")
602  _method_command("save_session_as", "Save Session &As", "SaveSessionAs")  _method_command("save_session_as", "Save Session &As", "SaveSessionAs")
603  _method_command("exit", "&Exit", "Exit")  _method_command("show_session_tree", "Show Session &Tree", "ShowSessionTree",
604                    sensitive = _has_tree_window_shown)
605    _method_command("exit", "E&xit", "Exit")
606    
607  # Help menu  # Help menu
608  _method_command("help_about", "&About", "About")  _method_command("help_about", "&About", "About")
# Line 483  _method_command("help_about", "&About", Line 612  _method_command("help_about", "&About",
612  _method_command("map_projection", "Pro&jection", "Projection")  _method_command("map_projection", "Pro&jection", "Projection")
613    
614  _tool_command("map_zoom_in_tool", "&Zoom in", "ZoomInTool", "ZoomInTool",  _tool_command("map_zoom_in_tool", "&Zoom in", "ZoomInTool", "ZoomInTool",
615                helptext = "Switch to map-mode 'zoom-in'", icon = "zoom_in")                helptext = "Switch to map-mode 'zoom-in'", icon = "zoom_in",
616                  sensitive = _has_visible_map)
617  _tool_command("map_zoom_out_tool", "Zoom &out", "ZoomOutTool", "ZoomOutTool",  _tool_command("map_zoom_out_tool", "Zoom &out", "ZoomOutTool", "ZoomOutTool",
618                helptext = "Switch to map-mode 'zoom-out'", icon = "zoom_out")                helptext = "Switch to map-mode 'zoom-out'", icon = "zoom_out",
619                  sensitive = _has_visible_map)
620  _tool_command("map_pan_tool", "&Pan", "PanTool", "PanTool",  _tool_command("map_pan_tool", "&Pan", "PanTool", "PanTool",
621                helptext = "Switch to map-mode 'pan'", icon = "pan")                helptext = "Switch to map-mode 'pan'", icon = "pan",
622                  sensitive = _has_visible_map)
623  _tool_command("map_identify_tool", "&Identify", "IdentifyTool", "IdentifyTool",  _tool_command("map_identify_tool", "&Identify", "IdentifyTool", "IdentifyTool",
624                helptext = "Switch to map-mode 'identify'", icon = "identify")                helptext = "Switch to map-mode 'identify'", icon = "identify",
625                  sensitive = _has_visible_map)
626  _tool_command("map_label_tool", "&Label", "LabelTool", "LabelTool",  _tool_command("map_label_tool", "&Label", "LabelTool", "LabelTool",
627                helptext = "Add/Remove labels", icon = "label")                helptext = "Add/Remove labels", icon = "label",
628  _method_command("map_full_extent", "&Full extent", "FullExtent")                sensitive = _has_visible_map)
629    _method_command("map_full_extent", "&Full extent", "FullExtent",
630                   helptext = "Full Extent", icon = "fullextent",
631                  sensitive = _has_visible_map)
632  _method_command("map_print", "Prin&t", "PrintMap", helptext = "Print the map")  _method_command("map_print", "Prin&t", "PrintMap", helptext = "Print the map")
633    
634  # Layer menu  # Layer menu
635  _method_command("layer_add", "&Add", "AddLayer",  _method_command("layer_add", "&Add Layer", "AddLayer",
636                  helptext = "Add a new layer to active map")                  helptext = "Add a new layer to active map")
637  _method_command("layer_remove", "&Remove", "RemoveLayer",  _method_command("layer_remove", "&Remove Layer", "RemoveLayer",
638                  helptext = "Remove selected layer(s)",                  helptext = "Remove selected layer(s)",
639                  sensitive = _has_selected_layer)                  sensitive = _can_remove_layer)
640  _method_command("layer_fill_color", "&Fill Color", "LayerFillColor",  _method_command("layer_fill_color", "&Fill Color", "LayerFillColor",
641                  helptext = "Set the fill color of selected layer(s)",                  helptext = "Set the fill color of selected layer(s)",
642                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
# Line 508  _method_command("layer_transparent_fill" Line 644  _method_command("layer_transparent_fill"
644                  "LayerTransparentFill",                  "LayerTransparentFill",
645                  helptext = "Do not fill the selected layer(s)",                  helptext = "Do not fill the selected layer(s)",
646                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
647  _method_command("layer_ourline_color", "&Outline Color", "LayerOutlineColor",  _method_command("layer_outline_color", "&Outline Color", "LayerOutlineColor",
648                  helptext = "Set the outline color of selected layer(s)",                  helptext = "Set the outline color of selected layer(s)",
649                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
650  _method_command("layer_no_outline", "&No Outline", "LayerNoOutline",  _method_command("layer_no_outline", "&No Outline", "LayerNoOutline",
# Line 529  _method_command("layer_hide", "&Hide", " Line 665  _method_command("layer_hide", "&Hide", "
665  _method_command("layer_show_table", "Show Ta&ble", "LayerShowTable",  _method_command("layer_show_table", "Show Ta&ble", "LayerShowTable",
666                  helptext = "Show the selected layer's table",                  helptext = "Show the selected layer's table",
667                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
668    
669    
670    # the menu structure
671    main_menu = Menu("<main>", "<main>",
672                     [Menu("file", "&File",
673                           ["new_session", "open_session", None,
674                            "save_session", "save_session_as", None,
675                            "show_session_tree", None,
676                            "exit"]),
677                      Menu("map", "&Map",
678                           ["layer_add", "layer_remove",
679                            None,
680                            "map_projection",
681                            None,
682                            "map_zoom_in_tool", "map_zoom_out_tool",
683                            "map_pan_tool", "map_identify_tool", "map_label_tool",
684                            None,
685                            "map_full_extent",
686                            None,
687                            "map_print"]),
688                      Menu("layer", "&Layer",
689                           ["layer_fill_color", "layer_transparent_fill",
690                            "layer_outline_color", "layer_no_outline",
691                            None,
692                            "layer_raise", "layer_lower",
693                            None,
694                            "layer_show", "layer_hide",
695                            None,
696                            "layer_show_table"]),
697                      Menu("help", "&Help",
698                           ["help_about"])])
699    
700    # the main toolbar
701    
702    main_toolbar = Menu("<toolbar>", "<toolbar>",
703                        ["map_zoom_in_tool", "map_zoom_out_tool", "map_pan_tool",
704                         "map_full_extent", None,
705                         "map_identify_tool", "map_label_tool"])
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