/[thuban]/branches/WIP-pyshapelib-bramz/Thuban/UI/mainwindow.py
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revision 119 by frank, Fri Apr 26 09:30:41 2002 UTC revision 222 by bh, Thu Jul 18 13:03:08 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, create_empty_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  import main
32    from context import Context
33  from command import registry, Command  from command import registry, Command
34  from messages import SELECTED_SHAPE  from messages import SELECTED_SHAPE, VIEW_POSITION
35    
36    
37  # the directory where the toolbar icons are stored  # the directory where the toolbar icons are stored
# Line 54  class MainWindow(wxFrame): Line 55  class MainWindow(wxFrame):
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))
60    
61          menu = wxMenu()          # Similarly, create the toolbar from main_toolbar
62          menuBar.Append(menu, "&File");          toolbar = self.build_toolbar(main_toolbar)
         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 ["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")  
   
         self.SetMenuBar(menuBar)  
   
         # toolbar  
         toolbar = self.CreateToolBar(wxTB_3DBUTTONS)  
   
         # set the size of the tools' bitmaps. Not needed on wxGTK, but  
         # on Windows. We probably shouldn't hardwire the bitmap size  
         # here  
         toolbar.SetToolBitmapSize(wxSize(24, 24))  
   
         for name in ["map_zoom_in_tool", "map_zoom_out_tool", "map_pan_tool",  
                      "map_identify_tool", "map_label_tool", "map_full_extent"]:  
             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 124  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 136  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            """Build and return a wxMenu from a menudescription"""
116            wxmenu = wxMenu()
117            last = None
118            for item in menudesc.items:
119                # here the items must all be Menu instances themselves
120                if item is None:
121                    # a separator. Only add one if the last item was not a
122                    # separator
123                    if last is not None:
124                        wxmenu.AppendSeparator()
125                elif isinstance(item, Menu):
126                    # a submenu
127                    wxmenu.AppendMenu(wxNewId(), item.title, self.build_menu(item))
128                else:
129                    # must the name the name of a command
130                    self.add_menu_command(wxmenu, item)
131                last = item
132            return wxmenu
133    
134        def build_toolbar(self, toolbardesc):
135            """Build and return the main toolbar window from a toolbar description
136    
137            The parameter should be an instance of the Menu class but it
138            should not contain submenus.
139            """
140            toolbar = self.CreateToolBar(wxTB_3DBUTTONS)
141    
142            # set the size of the tools' bitmaps. Not needed on wxGTK, but
143            # on Windows, although it doesn't work very well there. It seems
144            # that only 16x16 icons are really supported on windows.
145            # We probably shouldn't hardwire the bitmap size here.
146            toolbar.SetToolBitmapSize(wxSize(24, 24))
147    
148            for item in toolbardesc.items:
149                if item is None:
150                    toolbar.AddSeparator()
151                else:
152                    # assume it's a string.
153                    self.add_toolbar_command(toolbar, item)
154    
155            return toolbar
156    
157      def add_menu_command(self, menu, name):      def add_menu_command(self, menu, name):
158          """Add the command with name name to the menu menu.          """Add the command with name name to the menu menu.
159    
# Line 150  class MainWindow(wxFrame): Line 167  class MainWindow(wxFrame):
167                  ID = self.get_id(name)                  ID = self.get_id(name)
168                  menu.Append(ID, command.Title(), command.HelpText(),                  menu.Append(ID, command.Title(), command.HelpText(),
169                              command.IsCheckCommand())                              command.IsCheckCommand())
170                  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)  
171              else:              else:
172                  print "Unknown command %s" % name                  print "Unknown command %s" % name
173    
# Line 174  class MainWindow(wxFrame): Line 189  class MainWindow(wxFrame):
189                  toolbar.AddTool(ID, bitmap,                  toolbar.AddTool(ID, bitmap,
190                                  shortHelpString = command.HelpText(),                                  shortHelpString = command.HelpText(),
191                                  isToggle = command.IsCheckCommand())                                  isToggle = command.IsCheckCommand())
192                    self.bind_command_events(command, ID)
193              else:              else:
194                  print "Unknown command %s" % name                  print "Unknown command %s" % name
195    
# Line 181  class MainWindow(wxFrame): Line 197  class MainWindow(wxFrame):
197          name = self.id_to_name.get(event.GetId())          name = self.id_to_name.get(event.GetId())
198          if name is not None:          if name is not None:
199              command = registry.Command(name)              command = registry.Command(name)
200              command.Execute(self)              command.Execute(Context(main.app, main.app.Session(), self))
201          else:          else:
202              print "Unknown command ID %d" % event.GetId()              print "Unknown command ID %d" % event.GetId()
203    
204      def update_command_ui(self, event):      def update_command_ui(self, event):
205          #print "update_command_ui", self.id_to_name[event.GetId()]          #print "update_command_ui", self.id_to_name[event.GetId()]
206            context = Context(main.app, main.app.Session(), self)
207          command = registry.Command(self.id_to_name[event.GetId()])          command = registry.Command(self.id_to_name[event.GetId()])
208          if command is not None:          if command is not None:
209              event.Enable(command.Sensitive(self))              event.Enable(command.Sensitive(context))
210              event.SetText(command.DynText(self))              event.SetText(command.DynText(context))
211              if command.IsCheckCommand():              if command.IsCheckCommand():
212                  event.Check(command.Checked(self))                  event.Check(command.Checked(context))
213    
214      def RunMessageBox(self, title, text, flags = wxOK | wxICON_INFORMATION):      def RunMessageBox(self, title, text, flags = wxOK | wxICON_INFORMATION):
215          """Run a modla message box with the given text, title and flags          """Run a modal message box with the given text, title and flags
216          and return the result"""          and return the result"""
217          dlg = wxMessageDialog(self, text, title, flags)          dlg = wxMessageDialog(self, text, title, flags)
218          result = dlg.ShowModal()          result = dlg.ShowModal()
# Line 223  class MainWindow(wxFrame): Line 240  class MainWindow(wxFrame):
240      def get_open_dialog(self, name):      def get_open_dialog(self, name):
241          return self.dialogs.get(name)          return self.dialogs.get(name)
242    
243        def view_position_changed(self):
244            pos = self.canvas.CurrentPosition()
245            if pos is not None:
246                text = "(%10.10g, %10.10g)" % pos
247            else:
248                text = ""
249            self.SetStatusText(text)
250    
251      def save_modified_session(self, can_veto = 1):      def save_modified_session(self, can_veto = 1):
252          """If the current session has been modified, ask the user          """If the current session has been modified, ask the user
253          whether to save it and do so if requested. Return the outcome of          whether to save it and do so if requested. Return the outcome of
# Line 253  class MainWindow(wxFrame): Line 278  class MainWindow(wxFrame):
278      def OpenSession(self):      def OpenSession(self):
279          self.save_modified_session()          self.save_modified_session()
280          dlg = wxFileDialog(self, "Select a session file", ".", "",          dlg = wxFileDialog(self, "Select a session file", ".", "",
281                             "*.session", wxOPEN)                             "*.thuban", wxOPEN)
282          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wxID_OK:
283              main.app.OpenSession(dlg.GetPath())              main.app.OpenSession(dlg.GetPath())
284          dlg.Destroy()          dlg.Destroy()
# Line 265  class MainWindow(wxFrame): Line 290  class MainWindow(wxFrame):
290    
291      def SaveSessionAs(self):      def SaveSessionAs(self):
292          dlg = wxFileDialog(self, "Enter a filename for session", ".", "",          dlg = wxFileDialog(self, "Enter a filename for session", ".", "",
293                             "*.session", wxOPEN)                             "*.thuban", wxOPEN)
294          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wxID_OK:
295              main.app.session.SetFilename(dlg.GetPath())              main.app.session.SetFilename(dlg.GetPath())
296              main.app.SaveSession()              main.app.SaveSession()
# Line 334  class MainWindow(wxFrame): Line 359  class MainWindow(wxFrame):
359          layer = self.current_layer()          layer = self.current_layer()
360          if layer is not None:          if layer is not None:
361              self.canvas.Map().RaiseLayer(layer)              self.canvas.Map().RaiseLayer(layer)
362            
363      def LowerLayer(self):      def LowerLayer(self):
364          layer = self.current_layer()          layer = self.current_layer()
365          if layer is not None:          if layer is not None:
# Line 474  class MainWindow(wxFrame): Line 499  class MainWindow(wxFrame):
499    
500  # Helper functions to define common command implementations  # Helper functions to define common command implementations
501  def call_method(context, methodname, *args):  def call_method(context, methodname, *args):
502      """Call the context's method methodname with args *args"""      """Call the mainwindow's method methodname with args *args"""
503      apply(getattr(context, methodname), args)      apply(getattr(context.mainwindow, methodname), args)
504    
505  def _method_command(name, title, method, helptext = "",  def _method_command(name, title, method, helptext = "",
506                      icon = "", sensitive = None):                      icon = "", sensitive = None):
507      """Add a command implemented by a method of the context object"""      """Add a command implemented by a method of the mainwindow object"""
508      registry.Add(Command(name, title, call_method, args=(method,),      registry.Add(Command(name, title, call_method, args=(method,),
509                           helptext = helptext, icon = icon,                           helptext = helptext, icon = icon,
510                           sensitive = sensitive))                           sensitive = sensitive))
# Line 488  def _tool_command(name, title, method, t Line 513  def _tool_command(name, title, method, t
513                    icon = ""):                    icon = ""):
514      """Add a tool command"""      """Add a tool command"""
515      def check_current_tool(context, name=toolname):      def check_current_tool(context, name=toolname):
516          return context.canvas.CurrentTool() == name          return context.mainwindow.canvas.CurrentTool() == name
517      registry.Add(Command(name, title, call_method, args=(method,),      registry.Add(Command(name, title, call_method, args=(method,),
518                           helptext = helptext, icon = icon,                           helptext = helptext, icon = icon,
519                           checked = check_current_tool))                           checked = check_current_tool))
520    
521  def _has_selected_layer(context):  def _has_selected_layer(context):
522      """Return true if a layer is selected in the context"""      """Return true if a layer is selected in the context"""
523      return context.has_selected_layer()      return context.mainwindow.has_selected_layer()
524    
525  # File menu  # File menu
526  _method_command("new_session", "&New Session", "NewSession")  _method_command("new_session", "&New Session", "NewSession")
527  _method_command("open_session", "&Open Session", "OpenSession")  _method_command("open_session", "&Open Session", "OpenSession")
528  _method_command("save_session", "&Save Session", "SaveSession")  _method_command("save_session", "&Save Session", "SaveSession")
529  _method_command("save_session_as", "Save Session &As", "SaveSessionAs")  _method_command("save_session_as", "Save Session &As", "SaveSessionAs")
530    _method_command("show_session_tree", "Show Session &Tree", "ShowSessionTree")
531  _method_command("exit", "&Exit", "Exit")  _method_command("exit", "&Exit", "Exit")
532    
533  # Help menu  # Help menu
# Line 538  _method_command("layer_transparent_fill" Line 564  _method_command("layer_transparent_fill"
564                  "LayerTransparentFill",                  "LayerTransparentFill",
565                  helptext = "Do not fill the selected layer(s)",                  helptext = "Do not fill the selected layer(s)",
566                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
567  _method_command("layer_ourline_color", "&Outline Color", "LayerOutlineColor",  _method_command("layer_outline_color", "&Outline Color", "LayerOutlineColor",
568                  helptext = "Set the outline color of selected layer(s)",                  helptext = "Set the outline color of selected layer(s)",
569                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
570  _method_command("layer_no_outline", "&No Outline", "LayerNoOutline",  _method_command("layer_no_outline", "&No Outline", "LayerNoOutline",
# Line 559  _method_command("layer_hide", "&Hide", " Line 585  _method_command("layer_hide", "&Hide", "
585  _method_command("layer_show_table", "Show Ta&ble", "LayerShowTable",  _method_command("layer_show_table", "Show Ta&ble", "LayerShowTable",
586                  helptext = "Show the selected layer's table",                  helptext = "Show the selected layer's table",
587                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
588    
589    
590    # the menu structure
591    main_menu = Menu("<main>", "<main>",
592                     [Menu("file", "&File",
593                           ["new_session", "open_session", None,
594                            "save_session", "save_session_as", None,
595                            "show_session_tree", None,
596                            "exit"]),
597                      Menu("map", "&Map",
598                           ["layer_add", "layer_remove",
599                            None,
600                            "map_projection",
601                            None,
602                            "map_zoom_in_tool", "map_zoom_out_tool",
603                            "map_pan_tool", "map_identify_tool", "map_label_tool",
604                            None,
605                            "map_full_extent",
606                            None,
607                            "map_print"]),
608                      Menu("layer", "&Layer",
609                           ["layer_fill_color", "layer_transparent_fill",
610                            "layer_outline_color", "layer_no_outline",
611                            None,
612                            "layer_raise", "layer_lower",
613                            None,
614                            "layer_show", "layer_hide",
615                            None,
616                            "layer_show_table"]),
617                      Menu("help", "&Help",
618                           ["help_about"])])
619    
620    # the main toolbar
621    
622    main_toolbar = Menu("<toolbar>", "<toolbar>",
623                        ["map_zoom_in_tool", "map_zoom_out_tool", "map_pan_tool",
624                         "map_identify_tool", "map_label_tool", "map_full_extent"])
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