/[thuban]/branches/WIP-pyshapelib-bramz/Thuban/UI/mainwindow.py
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revision 130 by bh, Fri May 3 14:50:18 2002 UTC revision 2040 by bh, Tue Dec 23 11:37:04 2003 UTC
# Line 1  Line 1 
1  # Copyright (C) 2001, 2002 by Intevation GmbH  # Copyright (C) 2001, 2002, 2003 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]>
5    # Frank Koormann <[email protected]>
6  #  #
7  # This program is free software under the GPL (>=v2)  # This program is free software under the GPL (>=v2)
8  # Read the file COPYING coming with Thuban for details.  # Read the file COPYING coming with Thuban for details.
# Line 11  The main window Line 12  The main window
12  """  """
13    
14  __version__ = "$Revision$"  __version__ = "$Revision$"
15    # $Source$
16    # $Id$
17    
18  import sys, os  import os
19    import copy
20    
21  from wxPython.wx import *  from wxPython.wx import *
22    
23  import Thuban  import Thuban
24  from Thuban.Model.session import Session, create_empty_session  
25  from Thuban.Model.map import Map  from Thuban import _
26  from Thuban.Model.layer import Layer  from Thuban.Model.messages import TITLE_CHANGED
27  from Thuban.Model.color import Color  from Thuban.Model.session import create_empty_session
28  from Thuban.Model.proj import Projection  from Thuban.Model.layer import Layer, RasterLayer
29    from Thuban.Model.postgisdb import PostGISShapeStore, has_postgis_support
30    # XXX: replace this by
31    # from wxPython.lib.dialogs import wxMultipleChoiceDialog
32    # when Thuban does not support wxPython 2.4.0 any more.
33    from Thuban.UI.multiplechoicedialog import wxMultipleChoiceDialog
34    
35  import view  import view
36  import tree  import tree
 import proj4dialog  
37  import tableview, identifyview  import tableview, identifyview
38    from Thuban.UI.classifier import Classifier
39    import legend
40    from menu import Menu
41    
42    from context import Context
43    from command import registry, Command, ToolCommand
44    from messages import LAYER_SELECTED, SHAPES_SELECTED, VIEW_POSITION, \
45         MAP_REPLACED
46    from about import About
47    
48    from Thuban.UI.dock import DockFrame
49    from Thuban.UI.join import JoinDialog
50    from Thuban.UI.dbdialog import DBFrame, DBDialog, ChooseDBTableDialog
51    import resource
52    import Thuban.Model.resource
53    
54    import projdialog
55    
56    
57    class MainWindow(DockFrame):
58    
59        # Some messages that can be subscribed/unsubscribed directly through
60        # the MapCanvas come in fact from other objects. This is a map to
61        # map those messages to the names of the instance variables they
62        # actually come from. This delegation is implemented in the
63        # Subscribe and unsubscribed methods
64        delegated_messages = {LAYER_SELECTED: "canvas",
65                              SHAPES_SELECTED: "canvas",
66                              MAP_REPLACED: "canvas"}
67    
68        # Methods delegated to some instance variables. The delegation is
69        # implemented in the __getattr__ method.
70        delegated_methods = {"SelectLayer": "canvas",
71                             "SelectShapes": "canvas",
72                             "SelectedLayer": "canvas",
73                             "SelectedShapes": "canvas",
74                             }
75    
76        def __init__(self, parent, ID, title, application, interactor,
77                     initial_message = None, size = wxSize(-1, -1)):
78            DockFrame.__init__(self, parent, ID, title, wxDefaultPosition, size)
79            #wxFrame.__init__(self, parent, ID, title, wxDefaultPosition, size)
80    
81  import main          self.application = application
 from command import registry, Command  
 from messages import SELECTED_SHAPE, VIEW_POSITION  
   
   
 # the directory where the toolbar icons are stored  
 bitmapdir = os.path.join(Thuban.__path__[0], os.pardir, "Resources", "Bitmaps")  
 bitmapext = ".xpm"  
   
   
 class MainWindow(wxFrame):  
   
     def __init__(self, parent, ID, interactor):  
         wxFrame.__init__(self, parent, ID, 'Thuban',  
                          wxDefaultPosition, wxSize(400, 300))  
   
         self.interactor = interactor  
82    
83          self.CreateStatusBar()          self.CreateStatusBar()
84          self.SetStatusText("This is the wxPython-based "          if initial_message:
85                        "Graphical User Interface for exploring geographic data")              self.SetStatusText(initial_message)
86    
87          self.identify_view = None          self.identify_view = None
88    
89          self.init_ids()          self.init_ids()
90    
91          menuBar = wxMenuBar()          # creat the menubar from the main_menu description
92            self.SetMenuBar(self.build_menu_bar(main_menu))
93    
94          menu = wxMenu()          # Similarly, create the toolbar from main_toolbar
95          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)  
96          # call Realize to make sure that the tools appear.          # call Realize to make sure that the tools appear.
97          toolbar.Realize()          toolbar.Realize()
98    
99    
100          # Create the map canvas          # Create the map canvas
101          canvas = view.MapCanvas(self, -1, interactor)          canvas = view.MapCanvas(self, -1)
102          canvas.Subscribe(VIEW_POSITION, self.view_position_changed)          canvas.Subscribe(VIEW_POSITION, self.view_position_changed)
103            canvas.Subscribe(SHAPES_SELECTED, self.identify_view_on_demand)
104          self.canvas = canvas          self.canvas = canvas
105            self.canvas.Subscribe(TITLE_CHANGED, self.title_changed)
106    
107            self.SetMainWindow(self.canvas)
108    
109            self.SetAutoLayout(True)
110    
111          self.init_dialogs()          self.init_dialogs()
112    
113          interactor.Subscribe(SELECTED_SHAPE, self.identify_view_on_demand)          self.ShowLegend()
114    
115          EVT_CLOSE(self, self.OnClose)          EVT_CLOSE(self, self.OnClose)
116    
117        def Subscribe(self, channel, *args):
118            """Subscribe a function to a message channel.
119    
120            If channel is one of the delegated messages call the appropriate
121            object's Subscribe method. Otherwise do nothing.
122            """
123            if channel in self.delegated_messages:
124                object = getattr(self, self.delegated_messages[channel])
125                object.Subscribe(channel, *args)
126            else:
127                print "Trying to subscribe to unsupported channel %s" % channel
128    
129        def Unsubscribe(self, channel, *args):
130            """Unsubscribe a function from a message channel.
131    
132            If channel is one of the delegated messages call the appropriate
133            object's Unsubscribe method. Otherwise do nothing.
134            """
135            if channel in self.delegated_messages:
136                object = getattr(self, self.delegated_messages[channel])
137                try:
138                    object.Unsubscribe(channel, *args)
139                except wxPyDeadObjectError:
140                    # The object was a wxObject and has already been
141                    # destroyed. Hopefully it has unsubscribed all its
142                    # subscribers already so that it's OK if we do nothing
143                    # here
144                    pass
145    
146        def __getattr__(self, attr):
147            """If attr is one of the delegated methods return that method
148    
149            Otherwise raise AttributeError.
150            """
151            if attr in self.delegated_methods:
152                return getattr(getattr(self, self.delegated_methods[attr]), attr)
153            raise AttributeError(attr)
154    
155      def init_ids(self):      def init_ids(self):
156          """Initialize the ids"""          """Initialize the ids"""
157          self.current_id = 6000          self.current_id = 6000
158          self.id_to_name = {}          self.id_to_name = {}
159          self.name_to_id = {}          self.name_to_id = {}
160            self.events_bound = {}
161    
162      def get_id(self, name):      def get_id(self, name):
163          """Return the wxWindows id for the command named name.          """Return the wxWindows id for the command named name.
# Line 137  class MainWindow(wxFrame): Line 170  class MainWindow(wxFrame):
170              self.name_to_id[name] = ID              self.name_to_id[name] = ID
171              self.id_to_name[ID] = name              self.id_to_name[ID] = name
172          return ID          return ID
173            
174        def bind_command_events(self, command, ID):
175            """Bind the necessary events for the given command and ID"""
176            if not self.events_bound.has_key(ID):
177                # the events haven't been bound yet
178                EVT_MENU(self, ID, self.invoke_command)
179                if command.IsDynamic():
180                    EVT_UPDATE_UI(self, ID, self.update_command_ui)
181    
182        def build_menu_bar(self, menudesc):
183            """Build and return the menu bar from the menu description"""
184            menu_bar = wxMenuBar()
185    
186            for item in menudesc.items:
187                # here the items must all be Menu instances themselves
188                menu_bar.Append(self.build_menu(item), item.title)
189    
190            return menu_bar
191    
192        def build_menu(self, menudesc):
193            """Return a wxMenu built from the menu description menudesc"""
194            wxmenu = wxMenu()
195            last = None
196            for item in menudesc.items:
197                if item is None:
198                    # a separator. Only add one if the last item was not a
199                    # separator
200                    if last is not None:
201                        wxmenu.AppendSeparator()
202                elif isinstance(item, Menu):
203                    # a submenu
204                    wxmenu.AppendMenu(wxNewId(), item.title, self.build_menu(item))
205                else:
206                    # must the name the name of a command
207                    self.add_menu_command(wxmenu, item)
208                last = item
209            return wxmenu
210    
211        def build_toolbar(self, toolbardesc):
212            """Build and return the main toolbar window from a toolbar description
213    
214            The parameter should be an instance of the Menu class but it
215            should not contain submenus.
216            """
217            toolbar = self.CreateToolBar(wxTB_3DBUTTONS)
218    
219            # set the size of the tools' bitmaps. Not needed on wxGTK, but
220            # on Windows, although it doesn't work very well there. It seems
221            # that only 16x16 icons are really supported on windows.
222            # We probably shouldn't hardwire the bitmap size here.
223            toolbar.SetToolBitmapSize(wxSize(24, 24))
224    
225            for item in toolbardesc.items:
226                if item is None:
227                    toolbar.AddSeparator()
228                else:
229                    # assume it's a string.
230                    self.add_toolbar_command(toolbar, item)
231    
232            return toolbar
233    
234      def add_menu_command(self, menu, name):      def add_menu_command(self, menu, name):
235          """Add the command with name name to the menu menu.          """Add the command with name name to the menu menu.
236    
# Line 151  class MainWindow(wxFrame): Line 244  class MainWindow(wxFrame):
244                  ID = self.get_id(name)                  ID = self.get_id(name)
245                  menu.Append(ID, command.Title(), command.HelpText(),                  menu.Append(ID, command.Title(), command.HelpText(),
246                              command.IsCheckCommand())                              command.IsCheckCommand())
247                  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)  
248              else:              else:
249                  print "Unknown command %s" % name                  print _("Unknown command %s") % name
250    
251      def add_toolbar_command(self, toolbar, name):      def add_toolbar_command(self, toolbar, name):
252          """Add the command with name name to the toolbar toolbar.          """Add the command with name name to the toolbar toolbar.
# Line 170  class MainWindow(wxFrame): Line 261  class MainWindow(wxFrame):
261              command = registry.Command(name)              command = registry.Command(name)
262              if command is not None:              if command is not None:
263                  ID = self.get_id(name)                  ID = self.get_id(name)
264                  filename = os.path.join(bitmapdir, command.Icon()) + bitmapext                  bitmap = resource.GetBitmapResource(command.Icon(),
265                  bitmap = wxBitmap(filename, wxBITMAP_TYPE_XPM)                                                      wxBITMAP_TYPE_XPM)
266                  toolbar.AddTool(ID, bitmap,                  toolbar.AddTool(ID, bitmap,
267                                  shortHelpString = command.HelpText(),                                  shortHelpString = command.HelpText(),
268                                  isToggle = command.IsCheckCommand())                                  isToggle = command.IsCheckCommand())
269                    self.bind_command_events(command, ID)
270              else:              else:
271                  print "Unknown command %s" % name                  print _("Unknown command %s") % name
272    
273        def Context(self):
274            """Return the context object for a command invoked from this window
275            """
276            return Context(self.application, self.application.Session(), self)
277    
278      def invoke_command(self, event):      def invoke_command(self, event):
279          name = self.id_to_name.get(event.GetId())          name = self.id_to_name.get(event.GetId())
280          if name is not None:          if name is not None:
281              command = registry.Command(name)              command = registry.Command(name)
282              command.Execute(self)              command.Execute(self.Context())
283          else:          else:
284              print "Unknown command ID %d" % event.GetId()              print _("Unknown command ID %d") % event.GetId()
285    
286      def update_command_ui(self, event):      def update_command_ui(self, event):
287          #print "update_command_ui", self.id_to_name[event.GetId()]          #print "update_command_ui", self.id_to_name[event.GetId()]
288            context = self.Context()
289          command = registry.Command(self.id_to_name[event.GetId()])          command = registry.Command(self.id_to_name[event.GetId()])
290          if command is not None:          if command is not None:
291              event.Enable(command.Sensitive(self))              sensitive = command.Sensitive(context)
292              event.SetText(command.DynText(self))              event.Enable(sensitive)
293                if command.IsTool() and not sensitive and command.Checked(context):
294                    # When a checked tool command is disabled deselect all
295                    # tools. Otherwise the tool would remain active but it
296                    # might lead to errors if the tools stays active. This
297                    # problem occurred in GREAT-ER and this fixes it, but
298                    # it's not clear to me whether this is really the best
299                    # way to do it (BH, 20021206).
300                    self.canvas.SelectTool(None)
301                event.SetText(command.DynText(context))
302              if command.IsCheckCommand():              if command.IsCheckCommand():
303                  event.Check(command.Checked(self))                      event.Check(command.Checked(context))
304    
305      def RunMessageBox(self, title, text, flags = wxOK | wxICON_INFORMATION):      def RunMessageBox(self, title, text, flags = wxOK | wxICON_INFORMATION):
306          """Run a modla message box with the given text, title and flags          """Run a modal message box with the given text, title and flags
307          and return the result"""          and return the result"""
308          dlg = wxMessageDialog(self, text, title, flags)          dlg = wxMessageDialog(self, text, title, flags)
309            dlg.CenterOnParent()
310          result = dlg.ShowModal()          result = dlg.ShowModal()
311          dlg.Destroy()          dlg.Destroy()
312          return result          return result
# Line 212  class MainWindow(wxFrame): Line 320  class MainWindow(wxFrame):
320    
321      def add_dialog(self, name, dialog):      def add_dialog(self, name, dialog):
322          if self.dialogs.has_key(name):          if self.dialogs.has_key(name):
323              raise RuntimeError("The Dialog named %s is already open" % name)              raise RuntimeError(_("The Dialog named %s is already open") % name)
324          self.dialogs[name] = dialog          self.dialogs[name] = dialog
325    
326      def dialog_open(self, name):      def dialog_open(self, name):
# Line 230  class MainWindow(wxFrame): Line 338  class MainWindow(wxFrame):
338              text = "(%10.10g, %10.10g)" % pos              text = "(%10.10g, %10.10g)" % pos
339          else:          else:
340              text = ""              text = ""
341            self.set_position_text(text)
342    
343        def set_position_text(self, text):
344            """Set the statusbar text showing the current position.
345    
346            By default the text is shown in field 0 of the status bar.
347            Override this method in derived classes to put it into a
348            different field of the statusbar.
349            """
350          self.SetStatusText(text)          self.SetStatusText(text)
351    
352      def save_modified_session(self, can_veto = 1):      def save_modified_session(self, can_veto = 1):
# Line 241  class MainWindow(wxFrame): Line 358  class MainWindow(wxFrame):
358          If the can_veto parameter is true (default) the dialog includes          If the can_veto parameter is true (default) the dialog includes
359          a cancel button, otherwise not.          a cancel button, otherwise not.
360          """          """
361          if main.app.session.WasModified():          if self.application.session.WasModified():
362              flags = wxYES_NO | wxICON_QUESTION              flags = wxYES_NO | wxICON_QUESTION
363              if can_veto:              if can_veto:
364                  flags = flags | wxCANCEL                  flags = flags | wxCANCEL
365              result = self.RunMessageBox("Exit",              result = self.RunMessageBox(_("Exit"),
366                                          ("The session has been modified."                                          _("The session has been modified."
367                                           " Do you want to save it?"),                                           " Do you want to save it?"),
368                                          flags)                                          flags)
369              if result == wxID_YES:              if result == wxID_YES:
# Line 256  class MainWindow(wxFrame): Line 373  class MainWindow(wxFrame):
373          return result          return result
374    
375      def NewSession(self):      def NewSession(self):
376          self.save_modified_session()          if self.save_modified_session() != wxID_CANCEL:
377          main.app.SetSession(create_empty_session())              self.application.SetSession(create_empty_session())
378    
379      def OpenSession(self):      def OpenSession(self):
380          self.save_modified_session()          if self.save_modified_session() != wxID_CANCEL:
381          dlg = wxFileDialog(self, "Select a session file", ".", "",              dlg = wxFileDialog(self, _("Open Session"), ".", "",
382                             "*.thuban", wxOPEN)                                 "Thuban Session File (*.thuban)|*.thuban",
383          if dlg.ShowModal() == wxID_OK:                                 wxOPEN)
384              main.app.OpenSession(dlg.GetPath())              if dlg.ShowModal() == wxID_OK:
385          dlg.Destroy()                  self.application.OpenSession(dlg.GetPath(),
386                                                 self.run_db_param_dialog)
387                dlg.Destroy()
388    
389        def run_db_param_dialog(self, parameters, message):
390            dlg = DBDialog(self, _("DB Connection Parameters"), parameters,
391                           message)
392            return dlg.RunDialog()
393    
394      def SaveSession(self):      def SaveSession(self):
395          if main.app.session.filename == None:          if self.application.session.filename == None:
396              self.SaveSessionAs()              self.SaveSessionAs()
397          main.app.SaveSession()          else:
398                self.application.SaveSession()
399    
400      def SaveSessionAs(self):      def SaveSessionAs(self):
401          dlg = wxFileDialog(self, "Enter a filename for session", ".", "",          dlg = wxFileDialog(self, _("Save Session As"), ".", "",
402                             "*.thuban", wxOPEN)                             "Thuban Session File (*.thuban)|*.thuban",
403                               wxSAVE|wxOVERWRITE_PROMPT)
404          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wxID_OK:
405              main.app.session.SetFilename(dlg.GetPath())              self.application.session.SetFilename(dlg.GetPath())
406              main.app.SaveSession()              self.application.SaveSession()
407          dlg.Destroy()          dlg.Destroy()
408    
409      def Exit(self):      def Exit(self):
410          self.Close(false)          self.Close(False)
411    
412      def OnClose(self, event):      def OnClose(self, event):
413          result = self.save_modified_session(can_veto = event.CanVeto())          result = self.save_modified_session(can_veto = event.CanVeto())
414          if result == wxID_CANCEL:          if result == wxID_CANCEL:
415              event.Veto()              event.Veto()
416          else:          else:
417                # FIXME: it would be better to tie the unsubscription to
418                # wx's destroy event, but that isn't implemented for wxGTK
419                # yet.
420                self.canvas.Unsubscribe(VIEW_POSITION, self.view_position_changed)
421                DockFrame.OnClose(self, event)
422                for dlg in self.dialogs.values():
423                    dlg.Destroy()
424                self.canvas.Destroy()
425              self.Destroy()              self.Destroy()
426    
427      def SetMap(self, map):      def SetMap(self, map):
428          self.canvas.SetMap(map)          self.canvas.SetMap(map)
429            self.update_title()
430    
431            dialog = self.FindRegisteredDock("legend")
432            if dialog is not None:
433                dialog.GetPanel().SetMap(self.Map())
434    
435        def Map(self):
436            """Return the map displayed by this mainwindow"""
437    
438            return self.canvas.Map()
439    
440      def ShowSessionTree(self):      def ToggleSessionTree(self):
441            """If the session tree is shown close it otherwise create a new tree"""
442          name = "session_tree"          name = "session_tree"
443          dialog = self.get_open_dialog(name)          dialog = self.get_open_dialog(name)
444          if dialog is None:          if dialog is None:
445              dialog = tree.SessionTreeView(self, main.app, name)              dialog = tree.SessionTreeView(self, self.application, name)
446              self.add_dialog(name, dialog)              self.add_dialog(name, dialog)
447              dialog.Show(true)              dialog.Show(True)
448          else:          else:
449              # FIXME: bring dialog to front here              dialog.Close()
450              pass  
451        def SessionTreeShown(self):
452            """Return true iff the session tree is currently shown"""
453            return self.get_open_dialog("session_tree") is not None
454    
455      def About(self):      def About(self):
456          self.RunMessageBox("About",          dlg = About(self)
457                             ("Thuban is a program for\n"          dlg.ShowModal()
458                              "exploring geographic data.\n"          dlg.Destroy()
459                              "Copyright (C) 2001 Intevation GmbH.\n"  
460                              "Thuban is licensed under the GPL"),      def DatabaseManagement(self):
461                             wxOK | wxICON_INFORMATION)          name = "dbmanagement"
462            dialog = self.get_open_dialog(name)
463            if dialog is None:
464                map = self.canvas.Map()
465                dialog = DBFrame(self, name, self.application.Session())
466                self.add_dialog(name, dialog)
467                dialog.Show()
468            dialog.Raise()
469    
470      def AddLayer(self):      def AddLayer(self):
471          dlg = wxFileDialog(self, "Select a data file", ".", "", "*.*",          dlg = wxFileDialog(self, _("Select one or more data files"), ".", "",
472                               _("Shapefiles (*.shp)") + "|*.shp;*.SHP|" +
473                               _("All Files (*.*)") + "|*.*",
474                               wxOPEN | wxMULTIPLE)
475            if dlg.ShowModal() == wxID_OK:
476                filenames = dlg.GetPaths()
477                for filename in filenames:
478                    title = os.path.splitext(os.path.basename(filename))[0]
479                    map = self.canvas.Map()
480                    has_layers = map.HasLayers()
481                    try:
482                        store = self.application.Session().OpenShapefile(filename)
483                    except IOError:
484                        # the layer couldn't be opened
485                        self.RunMessageBox(_("Add Layer"),
486                                           _("Can't open the file '%s'.")%filename)
487                    else:
488                        layer = Layer(title, store)
489                        map.AddLayer(layer)
490                        if not has_layers:
491                            # if we're adding a layer to an empty map, fit the
492                            # new map to the window
493                            self.canvas.FitMapToWindow()
494            dlg.Destroy()
495    
496        def AddRasterLayer(self):
497            dlg = wxFileDialog(self, _("Select an image file"), ".", "", "*.*",
498                             wxOPEN)                             wxOPEN)
499          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wxID_OK:
500              filename = dlg.GetPath()              filename = dlg.GetPath()
501              title = os.path.splitext(os.path.basename(filename))[0]              title = os.path.splitext(os.path.basename(filename))[0]
             layer = Layer(title, filename)  
502              map = self.canvas.Map()              map = self.canvas.Map()
503              has_layers = map.HasLayers()              has_layers = map.HasLayers()
504              try:              try:
505                  map.AddLayer(layer)                  layer = RasterLayer(title, filename)
506              except IOError:              except IOError:
507                  # the layer couldn't be opened                  # the layer couldn't be opened
508                  self.RunMessageBox("Add Layer",                  self.RunMessageBox(_("Add Image Layer"),
509                                     "Can't open the file '%s'." % filename)                                     _("Can't open the file '%s'.") % filename)
510              else:              else:
511                    map.AddLayer(layer)
512                  if not has_layers:                  if not has_layers:
513                      # if we're adding a layer to an empty map, for the                      # if we're adding a layer to an empty map, fit the
514                      # new map to the window                      # new map to the window
515                      self.canvas.FitMapToWindow()                      self.canvas.FitMapToWindow()
516          dlg.Destroy()          dlg.Destroy()
517    
518        def AddDBLayer(self):
519            """Add a layer read from a database"""
520            session = self.application.Session()
521            dlg = ChooseDBTableDialog(self, self.application.Session())
522    
523            if dlg.ShowModal() == wxID_OK:
524                dbconn, dbtable = dlg.GetTable()
525                try:
526                    title = str(dbtable)
527    
528                    # Chose the correct Interface for the database type
529                    store = PostGISShapeStore(dbconn, dbtable)
530                    session.AddShapeStore(store)
531                    layer = Layer(title, store)
532                except:
533                    # Some error occured while initializing the layer
534                    self.RunMessageBox(_("Add Layer from database"),
535                                       _("Can't open the database table '%s'")
536                                       % dbtable)
537    
538                map = self.canvas.Map()
539    
540                has_layers = map.HasLayers()
541                map.AddLayer(layer)
542                if not has_layers:
543                    self.canvas.FitMapToWindow()
544    
545            dlg.Destroy()
546    
547      def RemoveLayer(self):      def RemoveLayer(self):
548          layer = self.current_layer()          layer = self.current_layer()
549          if layer is not None:          if layer is not None:
550              self.canvas.Map().RemoveLayer(layer)              self.canvas.Map().RemoveLayer(layer)
551    
552        def CanRemoveLayer(self):
553            """Return true if the currently selected layer can be deleted.
554    
555            If no layer is selected return False.
556    
557            The return value of this method determines whether the remove
558            layer command is sensitive in menu.
559            """
560            layer = self.current_layer()
561            if layer is not None:
562                return self.canvas.Map().CanRemoveLayer(layer)
563            return False
564    
565      def RaiseLayer(self):      def RaiseLayer(self):
566          layer = self.current_layer()          layer = self.current_layer()
567          if layer is not None:          if layer is not None:
568              self.canvas.Map().RaiseLayer(layer)              self.canvas.Map().RaiseLayer(layer)
569            
570      def LowerLayer(self):      def LowerLayer(self):
571          layer = self.current_layer()          layer = self.current_layer()
572          if layer is not None:          if layer is not None:
# Line 354  class MainWindow(wxFrame): Line 577  class MainWindow(wxFrame):
577    
578          If no layer is selected, return None          If no layer is selected, return None
579          """          """
580          return self.interactor.SelectedLayer()          return self.canvas.SelectedLayer()
581    
582      def has_selected_layer(self):      def has_selected_layer(self):
583          """Return true if a layer is currently selected"""          """Return true if a layer is currently selected"""
584          return self.interactor.HasSelectedLayer()          return self.canvas.HasSelectedLayer()
585    
586      def choose_color(self):      def has_selected_shape_layer(self):
587          """Run the color selection dialog and return the selected color.          """Return true if a shape layer is currently selected"""
588            return isinstance(self.current_layer(), Layer)
589          If the user cancels, return None.  
590          """      def has_selected_shapes(self):
591          dlg = wxColourDialog(self)          """Return true if a shape is currently selected"""
592          color = None          return self.canvas.HasSelectedShapes()
         if dlg.ShowModal() == wxID_OK:  
             data = dlg.GetColourData()  
             wxc = data.GetColour()  
             color = Color(wxc.Red() / 255.0,  
                           wxc.Green() / 255.0,  
                           wxc.Blue() / 255.0)  
         dlg.Destroy()  
         return color  
593    
594      def LayerFillColor(self):      def HideLayer(self):
595          layer = self.current_layer()          layer = self.current_layer()
596          if layer is not None:          if layer is not None:
597              color = self.choose_color()              layer.SetVisible(0)
             if color is not None:  
                 layer.SetFill(color)  
598    
599      def LayerTransparentFill(self):      def ShowLayer(self):
600          layer = self.current_layer()          layer = self.current_layer()
601          if layer is not None:          if layer is not None:
602              layer.SetFill(None)              layer.SetVisible(1)
603    
604      def LayerOutlineColor(self):      def DuplicateLayer(self):
605            """Ceate a new layer above the selected layer with the same shapestore
606            """
607          layer = self.current_layer()          layer = self.current_layer()
608          if layer is not None:          if layer is not None and hasattr(layer, "ShapeStore"):
609              color = self.choose_color()              new_layer = Layer(_("Copy of `%s'") % layer.Title(),
610              if color is not None:                                layer.ShapeStore(),
611                  layer.SetStroke(color)                                projection = layer.GetProjection())
612                new_classification = copy.deepcopy(layer.GetClassification())
613                new_layer.SetClassification(new_classification)
614                self.Map().AddLayer(new_layer)
615    
616      def LayerNoOutline(self):      def CanDuplicateLayer(self):
617            """Return whether the DuplicateLayer method can create a duplicate"""
618          layer = self.current_layer()          layer = self.current_layer()
619          if layer is not None:          return layer is not None and hasattr(layer, "ShapeStore")
             layer.SetStroke(None)  
   
     def HideLayer(self):  
         layer = self.current_layer()  
         if layer is not None:  
             layer.SetVisible(0)  
           
     def ShowLayer(self):  
         layer = self.current_layer()  
         if layer is not None:  
             layer.SetVisible(1)  
620    
621      def LayerShowTable(self):      def LayerShowTable(self):
622          layer = self.current_layer()          layer = self.current_layer()
623          if layer is not None:          if layer is not None:
624              table = layer.table              table = layer.ShapeStore().Table()
625              name = "table_view" + str(id(table))              name = "table_view" + str(id(table))
626              dialog = self.get_open_dialog(name)              dialog = self.get_open_dialog(name)
627              if dialog is None:              if dialog is None:
628                  dialog = tableview.TableFrame(self, self.interactor, name,                  dialog = tableview.LayerTableFrame(self, name,
629                                                "Table: %s" % layer.Title(),                                           _("Layer Table: %s") % layer.Title(),
630                                                layer, table)                                           layer, table)
631                  self.add_dialog(name, dialog)                  self.add_dialog(name, dialog)
632                  dialog.Show(true)                  dialog.Show(True)
633              else:              else:
634                  # FIXME: bring dialog to front here                  # FIXME: bring dialog to front here
635                  pass                  pass
636    
637      def Projection(self):      def MapProjection(self):
638          map = self.canvas.Map()  
639          proj = map.projection          name = "map_projection"
640          if proj is None:          dialog = self.get_open_dialog(name)
641              proj4Dlg = proj4dialog.Proj4Dialog(NULL, None, map.BoundingBox())  
642          else:          if dialog is None:
643              proj4Dlg = proj4dialog.Proj4Dialog(NULL, map.projection.params,              map = self.canvas.Map()
644                                                 map.BoundingBox())              dialog = projdialog.ProjFrame(self, name,
645          if proj4Dlg.ShowModal() == wxID_OK:                       _("Map Projection: %s") % map.Title(), map)
646              params = proj4Dlg.GetParams()              self.add_dialog(name, dialog)
647              if params is not None:              dialog.Show()
648                  proj = Projection(params)          dialog.Raise()
649    
650        def LayerProjection(self):
651    
652            layer = self.current_layer()
653    
654            name = "layer_projection" + str(id(layer))
655            dialog = self.get_open_dialog(name)
656    
657            if dialog is None:
658                map = self.canvas.Map()
659                dialog = projdialog.ProjFrame(self, name,
660                         _("Layer Projection: %s") % layer.Title(), layer)
661                self.add_dialog(name, dialog)
662                dialog.Show()
663            dialog.Raise()
664    
665        def LayerEditProperties(self):
666    
667            #
668            # the menu option for this should only be available if there
669            # is a current layer, so we don't need to check if the
670            # current layer is None
671            #
672    
673            layer = self.current_layer()
674            self.OpenLayerProperties(layer)
675    
676        def OpenLayerProperties(self, layer, group = None):
677            name = "layer_properties" + str(id(layer))
678            dialog = self.get_open_dialog(name)
679    
680            if dialog is None:
681                dialog = Classifier(self, name, self.Map(), layer, group)
682                self.add_dialog(name, dialog)
683                dialog.Show()
684            dialog.Raise()
685    
686        def LayerJoinTable(self):
687            layer = self.canvas.SelectedLayer()
688            if layer is not None:
689                dlg = JoinDialog(self, _("Join Layer with Table"),
690                                 self.application.session,
691                                 layer = layer)
692                dlg.ShowModal()
693    
694        def LayerUnjoinTable(self):
695            layer = self.canvas.SelectedLayer()
696            if layer is not None:
697                orig_store = layer.ShapeStore().OrigShapeStore()
698                if orig_store:
699                    layer.SetShapeStore(orig_store)
700    
701        def ShowLegend(self):
702            if not self.LegendShown():
703                self.ToggleLegend()
704    
705        def ToggleLegend(self):
706            """Show the legend if it's not shown otherwise hide it again"""
707            name = "legend"
708            dialog = self.FindRegisteredDock(name)
709    
710            if dialog is None:
711                dialog = self.CreateDock(name, -1, _("Legend"), wxLAYOUT_LEFT)
712                legend.LegendPanel(dialog, None, self)
713                dialog.Dock()
714                dialog.GetPanel().SetMap(self.Map())
715                dialog.Show()
716            else:
717                dialog.Show(not dialog.IsShown())
718    
719        def LegendShown(self):
720            """Return true iff the legend is currently open"""
721            dialog = self.FindRegisteredDock("legend")
722            return dialog is not None and dialog.IsShown()
723    
724        def TableOpen(self):
725            dlg = wxFileDialog(self, _("Open Table"), ".", "",
726                               _("DBF Files (*.dbf)") + "|*.dbf|" +
727                               #_("CSV Files (*.csv)") + "|*.csv|" +
728                               _("All Files (*.*)") + "|*.*",
729                               wxOPEN)
730            if dlg.ShowModal() == wxID_OK:
731                filename = dlg.GetPath()
732                dlg.Destroy()
733                try:
734                    table = self.application.session.OpenTableFile(filename)
735                except IOError:
736                    # the layer couldn't be opened
737                    self.RunMessageBox(_("Open Table"),
738                                       _("Can't open the file '%s'.") % filename)
739              else:              else:
740                  proj = None                  self.ShowTableView(table)
741              map.SetProjection(proj)  
742          proj4Dlg.Destroy()      def TableClose(self):
743            tables = self.application.session.UnreferencedTables()
744    
745            lst = [(t.Title(), t) for t in tables]
746            lst.sort()
747            titles = [i[0] for i in lst]
748            dlg = wxMultipleChoiceDialog(self, _("Pick the tables to close:"),
749                                         _("Close Table"), titles,
750                                         size = (400, 300),
751                                         style = wxDEFAULT_DIALOG_STYLE |
752                                                 wxRESIZE_BORDER)
753            if dlg.ShowModal() == wxID_OK:
754                for i in dlg.GetValue():
755                    self.application.session.RemoveTable(lst[i][1])
756    
757    
758        def TableShow(self):
759            """Offer a multi-selection dialog for tables to be displayed
760    
761            The windows for the selected tables are opened or brought to
762            the front.
763            """
764            tables = self.application.session.Tables()
765    
766            lst = [(t.Title(), t) for t in tables]
767            lst.sort()
768            titles = [i[0] for i in lst]
769            dlg = wxMultipleChoiceDialog(self, _("Pick the table to show:"),
770                                         _("Show Table"), titles,
771                                         size = (400,300),
772                                         style = wxDEFAULT_DIALOG_STYLE |
773                                                 wxRESIZE_BORDER)
774            if (dlg.ShowModal() == wxID_OK):
775                for i in dlg.GetValue():
776                    # XXX: if the table belongs to a layer, open a
777                    # LayerTableFrame instead of QueryTableFrame
778                    self.ShowTableView(lst[i][1])
779    
780        def TableJoin(self):
781            dlg = JoinDialog(self, _("Join Tables"), self.application.session)
782            dlg.ShowModal()
783    
784        def ShowTableView(self, table):
785            """Open a table view for the table and optionally"""
786            name = "table_view%d" % id(table)
787            dialog = self.get_open_dialog(name)
788            if dialog is None:
789                dialog = tableview.QueryTableFrame(self, name,
790                                                   _("Table: %s") % table.Title(),
791                                                   table)
792                self.add_dialog(name, dialog)
793                dialog.Show(True)
794            dialog.Raise()
795    
796        def TableRename(self):
797            """Let the user rename a table"""
798    
799            # First, let the user select a table
800            tables = self.application.session.Tables()
801            lst = [(t.Title(), t) for t in tables]
802            lst.sort()
803            titles = [i[0] for i in lst]
804            dlg = wxMultipleChoiceDialog(self, _("Pick the table to rename:"),
805                                         _("Rename Table"), titles,
806                                         size = (400,300),
807                                         style = wxDEFAULT_DIALOG_STYLE |
808                                                 wxRESIZE_BORDER)
809            if (dlg.ShowModal() == wxID_OK):
810                to_rename = [lst[i][1] for i in dlg.GetValue()]
811                dlg.Destroy()
812            else:
813                to_rename = []
814    
815            # Second, let the user rename the layers
816            for table in to_rename:
817                dlg = wxTextEntryDialog(self, _("Table Title:"), _("Rename Table"),
818                                        table.Title())
819                try:
820                    if dlg.ShowModal() == wxID_OK:
821                        title = dlg.GetValue()
822                        if title != "":
823                            table.SetTitle(title)
824    
825                            # Make sure the session is marked as modified.
826                            # FIXME: This should be handled automatically,
827                            # but that requires more changes to the tables
828                            # than I have time for currently.
829                            self.application.session.changed()
830                finally:
831                    dlg.Destroy()
832    
833    
834      def ZoomInTool(self):      def ZoomInTool(self):
835          self.canvas.ZoomInTool()          self.canvas.ZoomInTool()
# Line 462  class MainWindow(wxFrame): Line 850  class MainWindow(wxFrame):
850      def FullExtent(self):      def FullExtent(self):
851          self.canvas.FitMapToWindow()          self.canvas.FitMapToWindow()
852    
853        def FullLayerExtent(self):
854            self.canvas.FitLayerToWindow(self.current_layer())
855    
856        def FullSelectionExtent(self):
857            self.canvas.FitSelectedToWindow()
858    
859        def ExportMap(self):
860            self.canvas.Export()
861    
862      def PrintMap(self):      def PrintMap(self):
863          self.canvas.Print()          self.canvas.Print()
864    
865      def identify_view_on_demand(self, layer, shape):      def RenameMap(self):
866            dlg = wxTextEntryDialog(self, _("Map Title:"), _("Rename Map"),
867                                    self.Map().Title())
868            if dlg.ShowModal() == wxID_OK:
869                title = dlg.GetValue()
870                if title != "":
871                    self.Map().SetTitle(title)
872    
873            dlg.Destroy()
874    
875        def RenameLayer(self):
876            """Let the user rename the currently selected layer"""
877            layer = self.current_layer()
878            if layer is not None:
879                dlg = wxTextEntryDialog(self, _("Layer Title:"), _("Rename Layer"),
880                                        layer.Title())
881                try:
882                    if dlg.ShowModal() == wxID_OK:
883                        title = dlg.GetValue()
884                        if title != "":
885                            layer.SetTitle(title)
886                finally:
887                    dlg.Destroy()
888    
889        def identify_view_on_demand(self, layer, shapes):
890            """Subscribed to the canvas' SHAPES_SELECTED message
891    
892            If the current tool is the identify tool, at least one shape is
893            selected and the identify dialog is not shown, show the dialog.
894            """
895            # If the selection has become empty we don't need to do
896            # anything. Otherwise it could happen that the dialog was popped
897            # up when the selection became empty, e.g. when a new selection
898            # is opened while the identify tool is active and dialog had
899            # been closed
900            if not shapes:
901                return
902    
903          name = "identify_view"          name = "identify_view"
904          if self.canvas.CurrentTool() == "IdentifyTool":          if self.canvas.CurrentTool() == "IdentifyTool":
905              if not self.dialog_open(name):              if not self.dialog_open(name):
906                  dialog = identifyview.IdentifyView(self, self.interactor, name)                  dialog = identifyview.IdentifyView(self, name)
907                  self.add_dialog(name, dialog)                  self.add_dialog(name, dialog)
908                  dialog.Show(true)                  dialog.Show(True)
909              else:              else:
910                  # FIXME: bring dialog to front?                  # FIXME: bring dialog to front?
911                  pass                  pass
912    
913        def title_changed(self, map):
914            """Subscribed to the canvas' TITLE_CHANGED messages"""
915            self.update_title()
916    
917        def update_title(self):
918            """Update the window's title according to it's current state.
919    
920            In this default implementation the title is 'Thuban - ' followed
921            by the map's title or simply 'Thuban' if there is not map.
922            Derived classes should override this method to get different
923            titles.
924    
925            This method is called automatically by other methods when the
926            title may have to change. For the methods implemented in this
927            class this usually only means that a different map has been set
928            or the current map's title has changed.
929            """
930            map = self.Map()
931            if map is not None:
932                title = _("Thuban - %s") % (map.Title(),)
933            else:
934                title = _("Thuban")
935            self.SetTitle(title)
936    
937    
938  #  #
939  # Define all the commands available in the main window  # Define all the commands available in the main window
940  #  #
# Line 483  class MainWindow(wxFrame): Line 942  class MainWindow(wxFrame):
942    
943  # Helper functions to define common command implementations  # Helper functions to define common command implementations
944  def call_method(context, methodname, *args):  def call_method(context, methodname, *args):
945      """Call the context's method methodname with args *args"""      """Call the mainwindow's method methodname with args *args"""
946      apply(getattr(context, methodname), args)      apply(getattr(context.mainwindow, methodname), args)
947    
948  def _method_command(name, title, method, helptext = "",  def _method_command(name, title, method, helptext = "",
949                      icon = "", sensitive = None):                      icon = "", sensitive = None, checked = None):
950      """Add a command implemented by a method of the context object"""      """Add a command implemented by a method of the mainwindow object"""
951      registry.Add(Command(name, title, call_method, args=(method,),      registry.Add(Command(name, title, call_method, args=(method,),
952                           helptext = helptext, icon = icon,                           helptext = helptext, icon = icon,
953                           sensitive = sensitive))                           sensitive = sensitive, checked = checked))
954    
955    def make_check_current_tool(toolname):
956        """Return a function that tests if the currently active tool is toolname
957    
958        The returned function can be called with the context and returns
959        true iff the currently active tool's name is toolname. It's directly
960        usable as the 'checked' callback of a command.
961        """
962        def check_current_tool(context, name=toolname):
963            return context.mainwindow.canvas.CurrentTool() == name
964        return check_current_tool
965    
966  def _tool_command(name, title, method, toolname, helptext = "",  def _tool_command(name, title, method, toolname, helptext = "",
967                    icon = ""):                    icon = "", sensitive = None):
968      """Add a tool command"""      """Add a tool command"""
969      def check_current_tool(context, name=toolname):      registry.Add(ToolCommand(name, title, call_method, args=(method,),
970          return context.canvas.CurrentTool() == name                               helptext = helptext, icon = icon,
971      registry.Add(Command(name, title, call_method, args=(method,),                               checked = make_check_current_tool(toolname),
972                           helptext = helptext, icon = icon,                               sensitive = sensitive))
                          checked = check_current_tool))  
973    
974  def _has_selected_layer(context):  def _has_selected_layer(context):
975      """Return true if a layer is selected in the context"""      """Return true if a layer is selected in the context"""
976      return context.has_selected_layer()      return context.mainwindow.has_selected_layer()
977    
978    def _has_selected_shape_layer(context):
979        """Return true if a shape layer is selected in the context"""
980        return context.mainwindow.has_selected_shape_layer()
981    
982    def _has_selected_shapes(context):
983        """Return true if a layer is selected in the context"""
984        return context.mainwindow.has_selected_shapes()
985    
986    def _can_remove_layer(context):
987        return context.mainwindow.CanRemoveLayer()
988    
989    def _has_tree_window_shown(context):
990        """Return true if the tree window is shown"""
991        return context.mainwindow.SessionTreeShown()
992    
993    def _has_visible_map(context):
994        """Return true iff theres a visible map in the mainwindow.
995    
996        A visible map is a map with at least one visible layer."""
997        map = context.mainwindow.Map()
998        if map is not None:
999            for layer in map.Layers():
1000                if layer.Visible():
1001                    return 1
1002        return 0
1003    
1004    def _has_legend_shown(context):
1005        """Return true if the legend window is shown"""
1006        return context.mainwindow.LegendShown()
1007    
1008    def _has_gdal_support(context):
1009        """Return True if the GDAL is available"""
1010        return Thuban.Model.resource.has_gdal_support()
1011    
1012    def _has_dbconnections(context):
1013        """Return whether the the session has database connections"""
1014        return context.session.HasDBConnections()
1015    
1016    def _has_postgis_support(context):
1017        return has_postgis_support()
1018    
1019    
1020  # File menu  # File menu
1021  _method_command("new_session", "&New Session", "NewSession")  _method_command("new_session", _("&New Session"), "NewSession",
1022  _method_command("open_session", "&Open Session", "OpenSession")                  helptext = _("Start a new session"))
1023  _method_command("save_session", "&Save Session", "SaveSession")  _method_command("open_session", _("&Open Session..."), "OpenSession",
1024  _method_command("save_session_as", "Save Session &As", "SaveSessionAs")                  helptext = _("Open a session file"))
1025  _method_command("exit", "&Exit", "Exit")  _method_command("save_session", _("&Save Session"), "SaveSession",
1026                    helptext =_("Save this session to the file it was opened from"))
1027    _method_command("save_session_as", _("Save Session &As..."), "SaveSessionAs",
1028                    helptext = _("Save this session to a new file"))
1029    _method_command("toggle_session_tree", _("Session &Tree"), "ToggleSessionTree",
1030                    checked = _has_tree_window_shown,
1031                    helptext = _("Toggle on/off the session tree analysis window"))
1032    _method_command("toggle_legend", _("Legend"), "ToggleLegend",
1033                    checked = _has_legend_shown,
1034                    helptext = _("Toggle Legend on/off"))
1035    _method_command("database_management", _("&Database Connections..."),
1036                    "DatabaseManagement",
1037                    sensitive = _has_postgis_support)
1038    _method_command("exit", _("E&xit"), "Exit",
1039                    helptext = _("Finish working with Thuban"))
1040    
1041  # Help menu  # Help menu
1042  _method_command("help_about", "&About", "About")  _method_command("help_about", _("&About..."), "About",
1043                    helptext = _("Info about Thuban authors, version and modules"))
1044    
1045    
1046  # Map menu  # Map menu
1047  _method_command("map_projection", "Pro&jection", "Projection")  _method_command("map_projection", _("Pro&jection..."), "MapProjection",
1048                    helptext = _("Set or change the map projection"))
1049    
1050  _tool_command("map_zoom_in_tool", "&Zoom in", "ZoomInTool", "ZoomInTool",  _tool_command("map_zoom_in_tool", _("&Zoom in"), "ZoomInTool", "ZoomInTool",
1051                helptext = "Switch to map-mode 'zoom-in'", icon = "zoom_in")                helptext = _("Switch to map-mode 'zoom-in'"), icon = "zoom_in",
1052  _tool_command("map_zoom_out_tool", "Zoom &out", "ZoomOutTool", "ZoomOutTool",                sensitive = _has_visible_map)
1053                helptext = "Switch to map-mode 'zoom-out'", icon = "zoom_out")  _tool_command("map_zoom_out_tool", _("Zoom &out"), "ZoomOutTool", "ZoomOutTool",
1054  _tool_command("map_pan_tool", "&Pan", "PanTool", "PanTool",                helptext = _("Switch to map-mode 'zoom-out'"), icon = "zoom_out",
1055                helptext = "Switch to map-mode 'pan'", icon = "pan")                sensitive = _has_visible_map)
1056  _tool_command("map_identify_tool", "&Identify", "IdentifyTool", "IdentifyTool",  _tool_command("map_pan_tool", _("&Pan"), "PanTool", "PanTool",
1057                helptext = "Switch to map-mode 'identify'", icon = "identify")                helptext = _("Switch to map-mode 'pan'"), icon = "pan",
1058  _tool_command("map_label_tool", "&Label", "LabelTool", "LabelTool",                sensitive = _has_visible_map)
1059                helptext = "Add/Remove labels", icon = "label")  _tool_command("map_identify_tool", _("&Identify"), "IdentifyTool",
1060  _method_command("map_full_extent", "&Full extent", "FullExtent",                "IdentifyTool",
1061                 helptext = "Full Extent", icon = "fullextent")                helptext = _("Switch to map-mode 'identify'"), icon = "identify",
1062  _method_command("map_print", "Prin&t", "PrintMap", helptext = "Print the map")                sensitive = _has_visible_map)
1063    _tool_command("map_label_tool", _("&Label"), "LabelTool", "LabelTool",
1064                  helptext = _("Add/Remove labels"), icon = "label",
1065                  sensitive = _has_visible_map)
1066    _method_command("map_full_extent", _("&Full extent"), "FullExtent",
1067                   helptext = _("Zoom to the full map extent"), icon = "fullextent",
1068                  sensitive = _has_visible_map)
1069    _method_command("layer_full_extent", _("&Full layer extent"), "FullLayerExtent",
1070                    helptext = _("Zoom to the full layer extent"),
1071                    icon = "fulllayerextent", sensitive = _has_selected_layer)
1072    _method_command("selected_full_extent", _("&Full selection extent"),
1073                    "FullSelectionExtent",
1074                    helptext = _("Zoom to the full selection extent"),
1075                    icon = "fullselextent", sensitive = _has_selected_shapes)
1076    _method_command("map_export", _("E&xport"), "ExportMap",
1077                    helptext = _("Export the map to file"))
1078    _method_command("map_print", _("Prin&t"), "PrintMap",
1079                    helptext = _("Print the map"))
1080    _method_command("map_rename", _("&Rename..."), "RenameMap",
1081                    helptext = _("Rename the map"))
1082    _method_command("layer_add", _("&Add Layer..."), "AddLayer",
1083                    helptext = _("Add a new layer to the map"))
1084    _method_command("rasterlayer_add", _("&Add Image Layer..."), "AddRasterLayer",
1085                    helptext = _("Add a new image layer to the map"),
1086                    sensitive = _has_gdal_support)
1087    _method_command("layer_add_db", _("Add &Database Layer..."), "AddDBLayer",
1088                    helptext = _("Add a new database layer to active map"),
1089                    sensitive = _has_dbconnections)
1090    _method_command("layer_remove", _("&Remove Layer"), "RemoveLayer",
1091                    helptext = _("Remove selected layer"),
1092                    sensitive = _can_remove_layer)
1093    
1094  # Layer menu  # Layer menu
1095  _method_command("layer_add", "&Add Layer", "AddLayer",  _method_command("layer_projection", _("Pro&jection..."), "LayerProjection",
1096                  helptext = "Add a new layer to active map")                  sensitive = _has_selected_layer,
1097  _method_command("layer_remove", "&Remove Layer", "RemoveLayer",                  helptext = _("Specify projection for selected layer"))
1098                  helptext = "Remove selected layer(s)",  _method_command("layer_duplicate", _("&Duplicate"), "DuplicateLayer",
1099                    helptext = _("Duplicate selected layer"),
1100              sensitive = lambda context: context.mainwindow.CanDuplicateLayer())
1101    _method_command("layer_rename", _("Re&name ..."), "RenameLayer",
1102                    helptext = _("Rename selected layer"),
1103                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1104  _method_command("layer_fill_color", "&Fill Color", "LayerFillColor",  _method_command("layer_raise", _("&Raise"), "RaiseLayer",
1105                  helptext = "Set the fill color of selected layer(s)",                  helptext = _("Raise selected layer"),
1106                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1107  _method_command("layer_transparent_fill", "&Transparent Fill",  _method_command("layer_lower", _("&Lower"), "LowerLayer",
1108                  "LayerTransparentFill",                  helptext = _("Lower selected layer"),
                 helptext = "Do not fill the selected layer(s)",  
1109                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1110  _method_command("layer_ourline_color", "&Outline Color", "LayerOutlineColor",  _method_command("layer_show", _("&Show"), "ShowLayer",
1111                  helptext = "Set the outline color of selected layer(s)",                  helptext = _("Make selected layer visible"),
1112                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1113  _method_command("layer_no_outline", "&No Outline", "LayerNoOutline",  _method_command("layer_hide", _("&Hide"), "HideLayer",
1114                  helptext = "Do not draw the outline of the selected layer(s)",                  helptext = _("Make selected layer unvisible"),
                 sensitive = _has_selected_layer)  
 _method_command("layer_raise", "&Raise", "RaiseLayer",  
                 helptext = "Raise selected layer(s)",  
                 sensitive = _has_selected_layer)  
 _method_command("layer_lower", "&Lower", "LowerLayer",  
                 helptext = "Lower selected layer(s)",  
                 sensitive = _has_selected_layer)  
 _method_command("layer_show", "&Show", "ShowLayer",  
                 helptext = "Make selected layer(s) visible",  
                 sensitive = _has_selected_layer)  
 _method_command("layer_hide", "&Hide", "HideLayer",  
                 helptext = "Make selected layer(s) unvisible",  
                 sensitive = _has_selected_layer)  
 _method_command("layer_show_table", "Show Ta&ble", "LayerShowTable",  
                 helptext = "Show the selected layer's table",  
1115                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1116    _method_command("layer_show_table", _("Show Ta&ble"), "LayerShowTable",
1117                    helptext = _("Show the selected layer's table"),
1118                    sensitive = _has_selected_shape_layer)
1119    _method_command("layer_properties", _("&Properties..."), "LayerEditProperties",
1120                    sensitive = _has_selected_layer,
1121                    helptext = _("Edit the properties of the selected layer"))
1122    _method_command("layer_jointable", _("&Join Table..."), "LayerJoinTable",
1123                    sensitive = _has_selected_shape_layer,
1124                    helptext = _("Join and attach a table to the selected layer"))
1125    
1126    def _can_unjoin(context):
1127        """Return whether the Layer/Unjoin command can be executed.
1128    
1129        This is the case if a layer is selected and that layer has a
1130        shapestore that has an original shapestore.
1131        """
1132        layer = context.mainwindow.SelectedLayer()
1133        if layer is None:
1134            return 0
1135        getstore = getattr(layer, "ShapeStore", None)
1136        if getstore is not None:
1137            return getstore().OrigShapeStore() is not None
1138        else:
1139            return 0
1140    _method_command("layer_unjointable", _("&Unjoin Table..."), "LayerUnjoinTable",
1141                    sensitive = _can_unjoin,
1142                    helptext = _("Undo the last join operation"))
1143    
1144    
1145    def _has_tables(context):
1146        return bool(context.session.Tables())
1147    
1148    # Table menu
1149    _method_command("table_open", _("&Open..."), "TableOpen",
1150                    helptext = _("Open a DBF-table from a file"))
1151    _method_command("table_close", _("&Close..."), "TableClose",
1152           sensitive = lambda context: bool(context.session.UnreferencedTables()),
1153                    helptext = _("Close one or more tables from a list"))
1154    _method_command("table_rename", _("&Rename..."), "TableRename",
1155                    sensitive = _has_tables,
1156                    helptext = _("Rename one or more tables"))
1157    _method_command("table_show", _("&Show..."), "TableShow",
1158                    sensitive = _has_tables,
1159                    helptext = _("Show one or more tables in a dialog"))
1160    _method_command("table_join", _("&Join..."), "TableJoin",
1161                    sensitive = _has_tables,
1162                    helptext = _("Join two tables creating a new one"))
1163    
1164    #  Export only under Windows ...
1165    map_menu = ["layer_add", "layer_add_db", "rasterlayer_add", "layer_remove",
1166                            None,
1167                            "map_rename",
1168                            "map_projection",
1169                            None,
1170                            "map_zoom_in_tool", "map_zoom_out_tool",
1171                            "map_pan_tool",
1172                            "map_full_extent",
1173                            "layer_full_extent",
1174                            "selected_full_extent",
1175                            None,
1176                            "map_identify_tool", "map_label_tool",
1177                            None,
1178                            "toggle_legend",
1179                            None]
1180    if wxPlatform == '__WXMSW__':
1181        map_menu.append("map_export")
1182    map_menu.append("map_print")
1183    
1184    # the menu structure
1185    main_menu = Menu("<main>", "<main>",
1186                     [Menu("file", _("&File"),
1187                           ["new_session", "open_session", None,
1188                            "save_session", "save_session_as", None,
1189                            "database_management", None,
1190                            "toggle_session_tree", None,
1191                            "exit"]),
1192                      Menu("map", _("&Map"), map_menu),
1193                      Menu("layer", _("&Layer"),
1194                           ["layer_rename", "layer_duplicate",
1195                            None,
1196                            "layer_raise", "layer_lower",
1197                            None,
1198                            "layer_show", "layer_hide",
1199                            None,
1200                            "layer_projection",
1201                            None,
1202                            "layer_show_table",
1203                            "layer_jointable",
1204                            "layer_unjointable",
1205                            None,
1206                            "layer_properties"]),
1207                      Menu("table", _("&Table"),
1208                           ["table_open", "table_close", "table_rename",
1209                           None,
1210                           "table_show",
1211                           None,
1212                           "table_join"]),
1213                      Menu("help", _("&Help"),
1214                           ["help_about"])])
1215    
1216    # the main toolbar
1217    
1218    main_toolbar = Menu("<toolbar>", "<toolbar>",
1219                        ["map_zoom_in_tool", "map_zoom_out_tool", "map_pan_tool",
1220                         "map_full_extent",
1221                         "layer_full_extent",
1222                         "selected_full_extent",
1223                         None,
1224                         "map_identify_tool", "map_label_tool"])
1225    
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