/[thuban]/branches/WIP-pyshapelib-bramz/Thuban/UI/mainwindow.py
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revision 270 by bh, Thu Aug 22 13:46:46 2002 UTC revision 314 by bh, Wed Sep 11 15:18:09 2002 UTC
# Line 112  class MainWindow(wxFrame): Line 112  class MainWindow(wxFrame):
112          return menu_bar          return menu_bar
113    
114      def build_menu(self, menudesc):      def build_menu(self, menudesc):
115          """Build and return a wxMenu from a menudescription"""          """Return a wxMenu built from the menu description menudesc"""
116          wxmenu = wxMenu()          wxmenu = wxMenu()
117          last = None          last = None
118          for item in menudesc.items:          for item in menudesc.items:
             # here the items must all be Menu instances themselves  
119              if item is None:              if item is None:
120                  # a separator. Only add one if the last item was not a                  # a separator. Only add one if the last item was not a
121                  # separator                  # separator
# Line 193  class MainWindow(wxFrame): Line 192  class MainWindow(wxFrame):
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              context = Context(self.application, self.application.Session(),              command.Execute(self.Context())
                               self)  
             command.Execute(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 = Context(self.application, self.application.Session(), self)          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(context))              event.Enable(command.Sensitive(context))
# Line 306  class MainWindow(wxFrame): Line 308  class MainWindow(wxFrame):
308          if result == wxID_CANCEL:          if result == wxID_CANCEL:
309              event.Veto()              event.Veto()
310          else:          else:
311                # FIXME: it would be better to tie the unsubscription to
312                # wx's destroy event, but that isn't implemented for wxGTK
313                # yet.
314                self.canvas.Unsubscribe(VIEW_POSITION, self.view_position_changed)
315              self.Destroy()              self.Destroy()
316    
317      def SetMap(self, map):      def SetMap(self, map):
318          self.canvas.SetMap(map)          self.canvas.SetMap(map)
319    
320        def Map(self):
321            """Return the map displayed by this mainwindow"""
322            return self.canvas.Map()
323    
324      def ShowSessionTree(self):      def ShowSessionTree(self):
325          name = "session_tree"          name = "session_tree"
326          dialog = self.get_open_dialog(name)          dialog = self.get_open_dialog(name)
# Line 357  class MainWindow(wxFrame): Line 367  class MainWindow(wxFrame):
367          if layer is not None:          if layer is not None:
368              self.canvas.Map().RemoveLayer(layer)              self.canvas.Map().RemoveLayer(layer)
369    
370        def CanRemoveLayer(self):
371            """Return true if the currently selected layer can be deleted.
372    
373            If no layer is selected return false.
374    
375            The return value of this method determines whether the remove
376            layer command is sensitive in menu.
377            """
378            layer = self.current_layer()
379            if layer is not None:
380                return self.canvas.Map().CanRemoveLayer(layer)
381            return 0
382    
383      def RaiseLayer(self):      def RaiseLayer(self):
384          layer = self.current_layer()          layer = self.current_layer()
385          if layer is not None:          if layer is not None:
# Line 435  class MainWindow(wxFrame): Line 458  class MainWindow(wxFrame):
458              name = "table_view" + str(id(table))              name = "table_view" + str(id(table))
459              dialog = self.get_open_dialog(name)              dialog = self.get_open_dialog(name)
460              if dialog is None:              if dialog is None:
461                  dialog = tableview.TableFrame(self, self.interactor, name,                  dialog = tableview.LayerTableFrame(self, self.interactor, name,
462                                                "Table: %s" % layer.Title(),                                                     "Table: %s" % layer.Title(),
463                                                layer, table)                                                     layer, table)
464                  self.add_dialog(name, dialog)                  self.add_dialog(name, dialog)
465                  dialog.Show(true)                  dialog.Show(true)
466              else:              else:
# Line 523  def make_check_current_tool(toolname): Line 546  def make_check_current_tool(toolname):
546      return check_current_tool      return check_current_tool
547    
548  def _tool_command(name, title, method, toolname, helptext = "",  def _tool_command(name, title, method, toolname, helptext = "",
549                    icon = ""):                    icon = "", sensitive = None):
550      """Add a tool command"""      """Add a tool command"""
551      registry.Add(Command(name, title, call_method, args=(method,),      registry.Add(Command(name, title, call_method, args=(method,),
552                           helptext = helptext, icon = icon,                           helptext = helptext, icon = icon,
553                           checked = make_check_current_tool(toolname)))                           checked = make_check_current_tool(toolname),
554                             sensitive = sensitive))
555    
556  def _has_selected_layer(context):  def _has_selected_layer(context):
557      """Return true if a layer is selected in the context"""      """Return true if a layer is selected in the context"""
558      return context.mainwindow.has_selected_layer()      return context.mainwindow.has_selected_layer()
559    
560    def _can_remove_layer(context):
561        return context.mainwindow.CanRemoveLayer()
562    
563  def _has_tree_window_shown(context):  def _has_tree_window_shown(context):
564      """Return true if the tree window is shown"""      """Return true if the tree window is shown"""
565      return context.mainwindow.get_open_dialog("session_tree") is None      return context.mainwindow.get_open_dialog("session_tree") is None
566    
567    def _has_visible_map(context):
568        """Return true iff theres a visible map in the mainwindow.
569    
570        A visible map is a map with at least one visible layer."""
571        map = context.mainwindow.Map()
572        if map is not None:
573            for layer in map.Layers():
574                if layer.Visible():
575                    return 1
576        return 0
577    
578    
579  # File menu  # File menu
580  _method_command("new_session", "&New Session", "NewSession")  _method_command("new_session", "&New Session", "NewSession")
581  _method_command("open_session", "&Open Session", "OpenSession")  _method_command("open_session", "&Open Session", "OpenSession")
# Line 544  _method_command("save_session", "&Save S Line 583  _method_command("save_session", "&Save S
583  _method_command("save_session_as", "Save Session &As", "SaveSessionAs")  _method_command("save_session_as", "Save Session &As", "SaveSessionAs")
584  _method_command("show_session_tree", "Show Session &Tree", "ShowSessionTree",  _method_command("show_session_tree", "Show Session &Tree", "ShowSessionTree",
585                  sensitive = _has_tree_window_shown)                  sensitive = _has_tree_window_shown)
586  _method_command("exit", "&Exit", "Exit")  _method_command("exit", "E&xit", "Exit")
587    
588  # Help menu  # Help menu
589  _method_command("help_about", "&About", "About")  _method_command("help_about", "&About", "About")
# Line 554  _method_command("help_about", "&About", Line 593  _method_command("help_about", "&About",
593  _method_command("map_projection", "Pro&jection", "Projection")  _method_command("map_projection", "Pro&jection", "Projection")
594    
595  _tool_command("map_zoom_in_tool", "&Zoom in", "ZoomInTool", "ZoomInTool",  _tool_command("map_zoom_in_tool", "&Zoom in", "ZoomInTool", "ZoomInTool",
596                helptext = "Switch to map-mode 'zoom-in'", icon = "zoom_in")                helptext = "Switch to map-mode 'zoom-in'", icon = "zoom_in",
597                  sensitive = _has_visible_map)
598  _tool_command("map_zoom_out_tool", "Zoom &out", "ZoomOutTool", "ZoomOutTool",  _tool_command("map_zoom_out_tool", "Zoom &out", "ZoomOutTool", "ZoomOutTool",
599                helptext = "Switch to map-mode 'zoom-out'", icon = "zoom_out")                helptext = "Switch to map-mode 'zoom-out'", icon = "zoom_out",
600                  sensitive = _has_visible_map)
601  _tool_command("map_pan_tool", "&Pan", "PanTool", "PanTool",  _tool_command("map_pan_tool", "&Pan", "PanTool", "PanTool",
602                helptext = "Switch to map-mode 'pan'", icon = "pan")                helptext = "Switch to map-mode 'pan'", icon = "pan",
603                  sensitive = _has_visible_map)
604  _tool_command("map_identify_tool", "&Identify", "IdentifyTool", "IdentifyTool",  _tool_command("map_identify_tool", "&Identify", "IdentifyTool", "IdentifyTool",
605                helptext = "Switch to map-mode 'identify'", icon = "identify")                helptext = "Switch to map-mode 'identify'", icon = "identify",
606                  sensitive = _has_visible_map)
607  _tool_command("map_label_tool", "&Label", "LabelTool", "LabelTool",  _tool_command("map_label_tool", "&Label", "LabelTool", "LabelTool",
608                helptext = "Add/Remove labels", icon = "label")                helptext = "Add/Remove labels", icon = "label",
609                  sensitive = _has_visible_map)
610  _method_command("map_full_extent", "&Full extent", "FullExtent",  _method_command("map_full_extent", "&Full extent", "FullExtent",
611                 helptext = "Full Extent", icon = "fullextent")                 helptext = "Full Extent", icon = "fullextent",
612                  sensitive = _has_visible_map)
613  _method_command("map_print", "Prin&t", "PrintMap", helptext = "Print the map")  _method_command("map_print", "Prin&t", "PrintMap", helptext = "Print the map")
614    
615  # Layer menu  # Layer menu
# Line 572  _method_command("layer_add", "&Add Layer Line 617  _method_command("layer_add", "&Add Layer
617                  helptext = "Add a new layer to active map")                  helptext = "Add a new layer to active map")
618  _method_command("layer_remove", "&Remove Layer", "RemoveLayer",  _method_command("layer_remove", "&Remove Layer", "RemoveLayer",
619                  helptext = "Remove selected layer(s)",                  helptext = "Remove selected layer(s)",
620                  sensitive = _has_selected_layer)                  sensitive = _can_remove_layer)
621  _method_command("layer_fill_color", "&Fill Color", "LayerFillColor",  _method_command("layer_fill_color", "&Fill Color", "LayerFillColor",
622                  helptext = "Set the fill color of selected layer(s)",                  helptext = "Set the fill color of selected layer(s)",
623                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
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