/[thuban]/branches/WIP-pyshapelib-bramz/Thuban/UI/mainwindow.py

Diff of /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 299 by bh,
Fri Aug 30 17:41:04 2002 UTC
 Line 193 
 class MainWindow(wxFrame):
              else:
                  print "Unknown command %s" % name
+     def Context(self):
+         """Return the context object for a command invoked from this window
+         """
+         return Context(self.application, self.application.Session(), self)
      def invoke_command(self, event):
          name = self.id_to_name.get(event.GetId())
          if name is not None:
              command = registry.Command(name)
-             context = Context(self.application, self.application.Session(),
+             command.Execute(self.Context())
-                               self)
-             command.Execute(context)
          else:
              print "Unknown command ID %d" % event.GetId()
      def update_command_ui(self, event):
          #print "update_command_ui", self.id_to_name[event.GetId()]
-         context = Context(self.application, self.application.Session(), self)
+         context = self.Context()
          command = registry.Command(self.id_to_name[event.GetId()])
          if command is not None:
              event.Enable(command.Sensitive(context))
-Line 357 
 class MainWindow(wxFrame):
+Line 360 
 class MainWindow(wxFrame):
          if layer is not None:
              self.canvas.Map().RemoveLayer(layer)
+     def CanRemoveLayer(self):
+         """Return true if the currently selected layer can be deleted.
+         If no layer is selected return false.
+         The return value of this method determines whether the remove
+         layer command is sensitive in menu.
+         """
+         layer = self.current_layer()
+         if layer is not None:
+             return self.canvas.Map().CanRemoveLayer(layer)
+         return 0
      def RaiseLayer(self):
          layer = self.current_layer()
          if layer is not None:
-Line 435 
 class MainWindow(wxFrame):
+Line 451 
 class MainWindow(wxFrame):
              name = "table_view" + str(id(table))
              dialog = self.get_open_dialog(name)
              if dialog is None:
-                 dialog = tableview.TableFrame(self, self.interactor, name,
+                 dialog = tableview.LayerTableFrame(self, self.interactor, name,
-                                               "Table: %s" % layer.Title(),
+                                                    "Table: %s" % layer.Title(),
-                                               layer, table)
+                                                    layer, table)
                  self.add_dialog(name, dialog)
                  dialog.Show(true)
              else:
-Line 511 
 def _method_command(name, title, method,
+Line 527 
 def _method_command(name, title, method,
                           helptext = helptext, icon = icon,
                           sensitive = sensitive))
+ def make_check_current_tool(toolname):
+     """Return a function that tests if the currently active tool is toolname
+     The returned function can be called with the context and returns
+     true iff the currently active tool's name is toolname. It's directly
+     usable as the 'checked' callback of a command.
+     """
+     def check_current_tool(context, name=toolname):
+         return context.mainwindow.canvas.CurrentTool() == name
+     return check_current_tool
  def _tool_command(name, title, method, toolname, helptext = "",
                    icon = ""):
      """Add a tool command"""
-     def check_current_tool(context, name=toolname):
-         return context.mainwindow.canvas.CurrentTool() == name
      registry.Add(Command(name, title, call_method, args=(method,),
                           helptext = helptext, icon = icon,
-                          checked = check_current_tool))
+                          checked = make_check_current_tool(toolname)))
  def _has_selected_layer(context):
      """Return true if a layer is selected in the context"""
      return context.mainwindow.has_selected_layer()
+ def _can_remove_layer(context):
+     return context.mainwindow.CanRemoveLayer()
+ def _has_tree_window_shown(context):
+     """Return true if the tree window is shown"""
+     return context.mainwindow.get_open_dialog("session_tree") is None
  # File menu
  _method_command("new_session", "&New Session", "NewSession")
  _method_command("open_session", "&Open Session", "OpenSession")
  _method_command("save_session", "&Save Session", "SaveSession")
  _method_command("save_session_as", "Save Session &As", "SaveSessionAs")
- _method_command("show_session_tree", "Show Session &Tree", "ShowSessionTree")
+ _method_command("show_session_tree", "Show Session &Tree", "ShowSessionTree",
+                 sensitive = _has_tree_window_shown)
  _method_command("exit", "&Exit", "Exit")
  # Help menu
-Line 558 
 _method_command("layer_add", "&Add Layer
+Line 591 
 _method_command("layer_add", "&Add Layer
                  helptext = "Add a new layer to active map")
  _method_command("layer_remove", "&Remove Layer", "RemoveLayer",
                  helptext = "Remove selected layer(s)",
-                 sensitive = _has_selected_layer)
+                 sensitive = _can_remove_layer)
  _method_command("layer_fill_color", "&Fill Color", "LayerFillColor",
                  helptext = "Set the fill color of selected layer(s)",
                  sensitive = _has_selected_layer)

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Removed from v.238
 


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Added in v.299
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Removed from v.238
 


changed lines


 
Added in v.299
-Removed from v.238
+Added in v.299

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