/[thuban]/branches/WIP-pyshapelib-bramz/Thuban/UI/mainwindow.py
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revision 238 by bh, Wed Jul 24 10:19:46 2002 UTC revision 307 by bh, Fri Sep 6 10:01:16 2002 UTC
# Line 193  class MainWindow(wxFrame): Line 193  class MainWindow(wxFrame):
193              else:              else:
194                  print "Unknown command %s" % name                  print "Unknown command %s" % name
195    
196        def Context(self):
197            """Return the context object for a command invoked from this window
198            """
199            return Context(self.application, self.application.Session(), self)
200    
201      def invoke_command(self, event):      def invoke_command(self, event):
202          name = self.id_to_name.get(event.GetId())          name = self.id_to_name.get(event.GetId())
203          if name is not None:          if name is not None:
204              command = registry.Command(name)              command = registry.Command(name)
205              context = Context(self.application, self.application.Session(),              command.Execute(self.Context())
                               self)  
             command.Execute(context)  
206          else:          else:
207              print "Unknown command ID %d" % event.GetId()              print "Unknown command ID %d" % event.GetId()
208    
209      def update_command_ui(self, event):      def update_command_ui(self, event):
210          #print "update_command_ui", self.id_to_name[event.GetId()]          #print "update_command_ui", self.id_to_name[event.GetId()]
211          context = Context(self.application, self.application.Session(), self)          context = self.Context()
212          command = registry.Command(self.id_to_name[event.GetId()])          command = registry.Command(self.id_to_name[event.GetId()])
213          if command is not None:          if command is not None:
214              event.Enable(command.Sensitive(context))              event.Enable(command.Sensitive(context))
# Line 306  class MainWindow(wxFrame): Line 309  class MainWindow(wxFrame):
309          if result == wxID_CANCEL:          if result == wxID_CANCEL:
310              event.Veto()              event.Veto()
311          else:          else:
312                # FIXME: it would be better to tie the unsubscription to
313                # wx's destroy event, but that isn't implemented for wxGTK
314                # yet.
315                self.canvas.Unsubscribe(VIEW_POSITION, self.view_position_changed)
316              self.Destroy()              self.Destroy()
317    
318      def SetMap(self, map):      def SetMap(self, map):
# Line 357  class MainWindow(wxFrame): Line 364  class MainWindow(wxFrame):
364          if layer is not None:          if layer is not None:
365              self.canvas.Map().RemoveLayer(layer)              self.canvas.Map().RemoveLayer(layer)
366    
367        def CanRemoveLayer(self):
368            """Return true if the currently selected layer can be deleted.
369    
370            If no layer is selected return false.
371    
372            The return value of this method determines whether the remove
373            layer command is sensitive in menu.
374            """
375            layer = self.current_layer()
376            if layer is not None:
377                return self.canvas.Map().CanRemoveLayer(layer)
378            return 0
379    
380      def RaiseLayer(self):      def RaiseLayer(self):
381          layer = self.current_layer()          layer = self.current_layer()
382          if layer is not None:          if layer is not None:
# Line 435  class MainWindow(wxFrame): Line 455  class MainWindow(wxFrame):
455              name = "table_view" + str(id(table))              name = "table_view" + str(id(table))
456              dialog = self.get_open_dialog(name)              dialog = self.get_open_dialog(name)
457              if dialog is None:              if dialog is None:
458                  dialog = tableview.TableFrame(self, self.interactor, name,                  dialog = tableview.LayerTableFrame(self, self.interactor, name,
459                                                "Table: %s" % layer.Title(),                                                     "Table: %s" % layer.Title(),
460                                                layer, table)                                                     layer, table)
461                  self.add_dialog(name, dialog)                  self.add_dialog(name, dialog)
462                  dialog.Show(true)                  dialog.Show(true)
463              else:              else:
# Line 511  def _method_command(name, title, method, Line 531  def _method_command(name, title, method,
531                           helptext = helptext, icon = icon,                           helptext = helptext, icon = icon,
532                           sensitive = sensitive))                           sensitive = sensitive))
533    
534    def make_check_current_tool(toolname):
535        """Return a function that tests if the currently active tool is toolname
536    
537        The returned function can be called with the context and returns
538        true iff the currently active tool's name is toolname. It's directly
539        usable as the 'checked' callback of a command.
540        """
541        def check_current_tool(context, name=toolname):
542            return context.mainwindow.canvas.CurrentTool() == name
543        return check_current_tool
544    
545  def _tool_command(name, title, method, toolname, helptext = "",  def _tool_command(name, title, method, toolname, helptext = "",
546                    icon = ""):                    icon = ""):
547      """Add a tool command"""      """Add a tool command"""
     def check_current_tool(context, name=toolname):  
         return context.mainwindow.canvas.CurrentTool() == name  
548      registry.Add(Command(name, title, call_method, args=(method,),      registry.Add(Command(name, title, call_method, args=(method,),
549                           helptext = helptext, icon = icon,                           helptext = helptext, icon = icon,
550                           checked = check_current_tool))                           checked = make_check_current_tool(toolname)))
551    
552  def _has_selected_layer(context):  def _has_selected_layer(context):
553      """Return true if a layer is selected in the context"""      """Return true if a layer is selected in the context"""
554      return context.mainwindow.has_selected_layer()      return context.mainwindow.has_selected_layer()
555    
556    def _can_remove_layer(context):
557        return context.mainwindow.CanRemoveLayer()
558    
559    def _has_tree_window_shown(context):
560        """Return true if the tree window is shown"""
561        return context.mainwindow.get_open_dialog("session_tree") is None
562    
563  # File menu  # File menu
564  _method_command("new_session", "&New Session", "NewSession")  _method_command("new_session", "&New Session", "NewSession")
565  _method_command("open_session", "&Open Session", "OpenSession")  _method_command("open_session", "&Open Session", "OpenSession")
566  _method_command("save_session", "&Save Session", "SaveSession")  _method_command("save_session", "&Save Session", "SaveSession")
567  _method_command("save_session_as", "Save Session &As", "SaveSessionAs")  _method_command("save_session_as", "Save Session &As", "SaveSessionAs")
568  _method_command("show_session_tree", "Show Session &Tree", "ShowSessionTree")  _method_command("show_session_tree", "Show Session &Tree", "ShowSessionTree",
569                    sensitive = _has_tree_window_shown)
570  _method_command("exit", "&Exit", "Exit")  _method_command("exit", "&Exit", "Exit")
571    
572  # Help menu  # Help menu
# Line 558  _method_command("layer_add", "&Add Layer Line 595  _method_command("layer_add", "&Add Layer
595                  helptext = "Add a new layer to active map")                  helptext = "Add a new layer to active map")
596  _method_command("layer_remove", "&Remove Layer", "RemoveLayer",  _method_command("layer_remove", "&Remove Layer", "RemoveLayer",
597                  helptext = "Remove selected layer(s)",                  helptext = "Remove selected layer(s)",
598                  sensitive = _has_selected_layer)                  sensitive = _can_remove_layer)
599  _method_command("layer_fill_color", "&Fill Color", "LayerFillColor",  _method_command("layer_fill_color", "&Fill Color", "LayerFillColor",
600                  helptext = "Set the fill color of selected layer(s)",                  helptext = "Set the fill color of selected layer(s)",
601                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
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