/[thuban]/branches/WIP-pyshapelib-bramz/Thuban/UI/mainwindow.py
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revision 185 by bh, Thu May 23 15:37:39 2002 UTC revision 2061 by bh, Fri Feb 13 10:46:44 2004 UTC
# Line 1  Line 1 
1  # Copyright (C) 2001, 2002 by Intevation GmbH  # Copyright (C) 2001, 2002, 2003, 2004 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,  
                      "show_session_tree", 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_outline_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 138  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 152  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 171  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 modal 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 213  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 231  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 242  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 257  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)                                 self.application.Path("data"), "",
383          if dlg.ShowModal() == wxID_OK:                                 "Thuban Session File (*.thuban)|*.thuban",
384              main.app.OpenSession(dlg.GetPath())                                 wxOPEN)
385          dlg.Destroy()              if dlg.ShowModal() == wxID_OK:
386                    self.application.OpenSession(dlg.GetPath(),
387                                                 self.run_db_param_dialog)
388                    self.application.SetPath("data", dlg.GetPath())
389                dlg.Destroy()
390    
391        def run_db_param_dialog(self, parameters, message):
392            dlg = DBDialog(self, _("DB Connection Parameters"), parameters,
393                           message)
394            return dlg.RunDialog()
395    
396      def SaveSession(self):      def SaveSession(self):
397          if main.app.session.filename == None:          if self.application.session.filename == None:
398              self.SaveSessionAs()              self.SaveSessionAs()
399          main.app.SaveSession()          else:
400                self.application.SaveSession()
401    
402      def SaveSessionAs(self):      def SaveSessionAs(self):
403          dlg = wxFileDialog(self, "Enter a filename for session", ".", "",          dlg = wxFileDialog(self, _("Save Session As"),
404                             "*.thuban", wxOPEN)                             self.application.Path("data"), "",
405                               "Thuban Session File (*.thuban)|*.thuban",
406                               wxSAVE|wxOVERWRITE_PROMPT)
407          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wxID_OK:
408              main.app.session.SetFilename(dlg.GetPath())              self.application.session.SetFilename(dlg.GetPath())
409              main.app.SaveSession()              self.application.SaveSession()
410                self.application.SetPath("data",dlg.GetPath())
411          dlg.Destroy()          dlg.Destroy()
412    
413      def Exit(self):      def Exit(self):
414          self.Close(false)          self.Close(False)
415    
416      def OnClose(self, event):      def OnClose(self, event):
417          result = self.save_modified_session(can_veto = event.CanVeto())          result = self.save_modified_session(can_veto = event.CanVeto())
418          if result == wxID_CANCEL:          if result == wxID_CANCEL:
419              event.Veto()              event.Veto()
420          else:          else:
421                # FIXME: it would be better to tie the unsubscription to
422                # wx's destroy event, but that isn't implemented for wxGTK
423                # yet.
424                self.canvas.Unsubscribe(VIEW_POSITION, self.view_position_changed)
425                DockFrame.OnClose(self, event)
426                for dlg in self.dialogs.values():
427                    dlg.Destroy()
428                self.canvas.Destroy()
429              self.Destroy()              self.Destroy()
430    
431      def SetMap(self, map):      def SetMap(self, map):
432          self.canvas.SetMap(map)          self.canvas.SetMap(map)
433            self.update_title()
434    
435            dialog = self.FindRegisteredDock("legend")
436            if dialog is not None:
437                dialog.GetPanel().SetMap(self.Map())
438    
439        def Map(self):
440            """Return the map displayed by this mainwindow"""
441    
442            return self.canvas.Map()
443    
444      def ShowSessionTree(self):      def ToggleSessionTree(self):
445            """If the session tree is shown close it otherwise create a new tree"""
446          name = "session_tree"          name = "session_tree"
447          dialog = self.get_open_dialog(name)          dialog = self.get_open_dialog(name)
448          if dialog is None:          if dialog is None:
449              dialog = tree.SessionTreeView(self, main.app, name)              dialog = tree.SessionTreeView(self, self.application, name)
450              self.add_dialog(name, dialog)              self.add_dialog(name, dialog)
451              dialog.Show(true)              dialog.Show(True)
452          else:          else:
453              # FIXME: bring dialog to front here              dialog.Close()
454              pass  
455        def SessionTreeShown(self):
456            """Return true iff the session tree is currently shown"""
457            return self.get_open_dialog("session_tree") is not None
458    
459      def About(self):      def About(self):
460          self.RunMessageBox("About",          dlg = About(self)
461                             ("Thuban is a program for\n"          dlg.ShowModal()
462                              "exploring geographic data.\n"          dlg.Destroy()
463                              "Copyright (C) 2001 Intevation GmbH.\n"  
464                              "Thuban is licensed under the GPL"),      def DatabaseManagement(self):
465                             wxOK | wxICON_INFORMATION)          name = "dbmanagement"
466            dialog = self.get_open_dialog(name)
467            if dialog is None:
468                map = self.canvas.Map()
469                dialog = DBFrame(self, name, self.application.Session())
470                self.add_dialog(name, dialog)
471                dialog.Show()
472            dialog.Raise()
473    
474      def AddLayer(self):      def AddLayer(self):
475          dlg = wxFileDialog(self, "Select a data file", ".", "", "*.*",          dlg = wxFileDialog(self, _("Select one or more data files"),
476                               self.application.Path("data"), "",
477                               _("Shapefiles (*.shp)") + "|*.shp;*.SHP|" +
478                               _("All Files (*.*)") + "|*.*",
479                               wxOPEN | wxMULTIPLE)
480            if dlg.ShowModal() == wxID_OK:
481                filenames = dlg.GetPaths()
482                for filename in filenames:
483                    title = os.path.splitext(os.path.basename(filename))[0]
484                    map = self.canvas.Map()
485                    has_layers = map.HasLayers()
486                    try:
487                        store = self.application.Session().OpenShapefile(filename)
488                    except IOError:
489                        # the layer couldn't be opened
490                        self.RunMessageBox(_("Add Layer"),
491                                           _("Can't open the file '%s'.")%filename)
492                    else:
493                        layer = Layer(title, store)
494                        map.AddLayer(layer)
495                        if not has_layers:
496                            # if we're adding a layer to an empty map, fit the
497                            # new map to the window
498                            self.canvas.FitMapToWindow()
499                        self.application.SetPath("data",filename)
500            dlg.Destroy()
501    
502        def AddRasterLayer(self):
503            dlg = wxFileDialog(self, _("Select an image file"),
504                               self.application.Path("data"), "", "*.*",
505                             wxOPEN)                             wxOPEN)
506          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wxID_OK:
507              filename = dlg.GetPath()              filename = dlg.GetPath()
508              title = os.path.splitext(os.path.basename(filename))[0]              title = os.path.splitext(os.path.basename(filename))[0]
             layer = Layer(title, filename)  
509              map = self.canvas.Map()              map = self.canvas.Map()
510              has_layers = map.HasLayers()              has_layers = map.HasLayers()
511              try:              try:
512                  map.AddLayer(layer)                  layer = RasterLayer(title, filename)
513              except IOError:              except IOError:
514                  # the layer couldn't be opened                  # the layer couldn't be opened
515                  self.RunMessageBox("Add Layer",                  self.RunMessageBox(_("Add Image Layer"),
516                                     "Can't open the file '%s'." % filename)                                     _("Can't open the file '%s'.") % filename)
517              else:              else:
518                    map.AddLayer(layer)
519                  if not has_layers:                  if not has_layers:
520                      # if we're adding a layer to an empty map, for the                      # if we're adding a layer to an empty map, fit the
521                      # new map to the window                      # new map to the window
522                      self.canvas.FitMapToWindow()                      self.canvas.FitMapToWindow()
523                    self.application.SetPath("data", filename)
524            dlg.Destroy()
525    
526        def AddDBLayer(self):
527            """Add a layer read from a database"""
528            session = self.application.Session()
529            dlg = ChooseDBTableDialog(self, self.application.Session())
530    
531            if dlg.ShowModal() == wxID_OK:
532                dbconn, dbtable = dlg.GetTable()
533                try:
534                    title = str(dbtable)
535    
536                    # Chose the correct Interface for the database type
537                    store = PostGISShapeStore(dbconn, dbtable)
538                    session.AddShapeStore(store)
539                    layer = Layer(title, store)
540                except:
541                    # Some error occured while initializing the layer
542                    self.RunMessageBox(_("Add Layer from database"),
543                                       _("Can't open the database table '%s'")
544                                       % dbtable)
545                    return
546    
547                map = self.canvas.Map()
548    
549                has_layers = map.HasLayers()
550                map.AddLayer(layer)
551                if not has_layers:
552                    self.canvas.FitMapToWindow()
553    
554          dlg.Destroy()          dlg.Destroy()
555    
556      def RemoveLayer(self):      def RemoveLayer(self):
# Line 340  class MainWindow(wxFrame): Line 558  class MainWindow(wxFrame):
558          if layer is not None:          if layer is not None:
559              self.canvas.Map().RemoveLayer(layer)              self.canvas.Map().RemoveLayer(layer)
560    
561        def CanRemoveLayer(self):
562            """Return true if the currently selected layer can be deleted.
563    
564            If no layer is selected return False.
565    
566            The return value of this method determines whether the remove
567            layer command is sensitive in menu.
568            """
569            layer = self.current_layer()
570            if layer is not None:
571                return self.canvas.Map().CanRemoveLayer(layer)
572            return False
573    
574      def RaiseLayer(self):      def RaiseLayer(self):
575          layer = self.current_layer()          layer = self.current_layer()
576          if layer is not None:          if layer is not None:
577              self.canvas.Map().RaiseLayer(layer)              self.canvas.Map().RaiseLayer(layer)
578            
579      def LowerLayer(self):      def LowerLayer(self):
580          layer = self.current_layer()          layer = self.current_layer()
581          if layer is not None:          if layer is not None:
# Line 355  class MainWindow(wxFrame): Line 586  class MainWindow(wxFrame):
586    
587          If no layer is selected, return None          If no layer is selected, return None
588          """          """
589          return self.interactor.SelectedLayer()          return self.canvas.SelectedLayer()
590    
591      def has_selected_layer(self):      def has_selected_layer(self):
592          """Return true if a layer is currently selected"""          """Return true if a layer is currently selected"""
593          return self.interactor.HasSelectedLayer()          return self.canvas.HasSelectedLayer()
594    
595      def choose_color(self):      def has_selected_shape_layer(self):
596          """Run the color selection dialog and return the selected color.          """Return true if a shape layer is currently selected"""
597            return isinstance(self.current_layer(), Layer)
598          If the user cancels, return None.  
599          """      def has_selected_shapes(self):
600          dlg = wxColourDialog(self)          """Return true if a shape is currently selected"""
601          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  
602    
603      def LayerFillColor(self):      def HideLayer(self):
604          layer = self.current_layer()          layer = self.current_layer()
605          if layer is not None:          if layer is not None:
606              color = self.choose_color()              layer.SetVisible(0)
             if color is not None:  
                 layer.SetFill(color)  
607    
608      def LayerTransparentFill(self):      def ShowLayer(self):
609          layer = self.current_layer()          layer = self.current_layer()
610          if layer is not None:          if layer is not None:
611              layer.SetFill(None)              layer.SetVisible(1)
612    
613      def LayerOutlineColor(self):      def DuplicateLayer(self):
614            """Ceate a new layer above the selected layer with the same shapestore
615            """
616          layer = self.current_layer()          layer = self.current_layer()
617          if layer is not None:          if layer is not None and hasattr(layer, "ShapeStore"):
618              color = self.choose_color()              new_layer = Layer(_("Copy of `%s'") % layer.Title(),
619              if color is not None:                                layer.ShapeStore(),
620                  layer.SetStroke(color)                                projection = layer.GetProjection())
621                new_classification = copy.deepcopy(layer.GetClassification())
622                new_layer.SetClassification(new_classification)
623                self.Map().AddLayer(new_layer)
624    
625      def LayerNoOutline(self):      def CanDuplicateLayer(self):
626            """Return whether the DuplicateLayer method can create a duplicate"""
627          layer = self.current_layer()          layer = self.current_layer()
628          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)  
629    
630      def LayerShowTable(self):      def LayerShowTable(self):
631          layer = self.current_layer()          layer = self.current_layer()
632          if layer is not None:          if layer is not None:
633              table = layer.table              table = layer.ShapeStore().Table()
634              name = "table_view" + str(id(table))              name = "table_view" + str(id(table))
635              dialog = self.get_open_dialog(name)              dialog = self.get_open_dialog(name)
636              if dialog is None:              if dialog is None:
637                  dialog = tableview.TableFrame(self, self.interactor, name,                  dialog = tableview.LayerTableFrame(self, name,
638                                                "Table: %s" % layer.Title(),                                           _("Layer Table: %s") % layer.Title(),
639                                                layer, table)                                           layer, table)
640                  self.add_dialog(name, dialog)                  self.add_dialog(name, dialog)
641                  dialog.Show(true)                  dialog.Show(True)
642              else:              else:
643                  # FIXME: bring dialog to front here                  # FIXME: bring dialog to front here
644                  pass                  pass
645    
646      def Projection(self):      def MapProjection(self):
647          map = self.canvas.Map()  
648          proj = map.projection          name = "map_projection"
649          if proj is None:          dialog = self.get_open_dialog(name)
650              proj4Dlg = proj4dialog.Proj4Dialog(NULL, None, map.BoundingBox())  
651          else:          if dialog is None:
652              proj4Dlg = proj4dialog.Proj4Dialog(NULL, map.projection.params,              map = self.canvas.Map()
653                                                 map.BoundingBox())              dialog = projdialog.ProjFrame(self, name,
654          if proj4Dlg.ShowModal() == wxID_OK:                       _("Map Projection: %s") % map.Title(), map)
655              params = proj4Dlg.GetParams()              self.add_dialog(name, dialog)
656              if params is not None:              dialog.Show()
657                  proj = Projection(params)          dialog.Raise()
658    
659        def LayerProjection(self):
660    
661            layer = self.current_layer()
662    
663            name = "layer_projection" + str(id(layer))
664            dialog = self.get_open_dialog(name)
665    
666            if dialog is None:
667                map = self.canvas.Map()
668                dialog = projdialog.ProjFrame(self, name,
669                         _("Layer Projection: %s") % layer.Title(), layer)
670                self.add_dialog(name, dialog)
671                dialog.Show()
672            dialog.Raise()
673    
674        def LayerEditProperties(self):
675    
676            #
677            # the menu option for this should only be available if there
678            # is a current layer, so we don't need to check if the
679            # current layer is None
680            #
681    
682            layer = self.current_layer()
683            self.OpenLayerProperties(layer)
684    
685        def OpenLayerProperties(self, layer, group = None):
686            name = "layer_properties" + str(id(layer))
687            dialog = self.get_open_dialog(name)
688    
689            if dialog is None:
690                dialog = Classifier(self, name, self.Map(), layer, group)
691                self.add_dialog(name, dialog)
692                dialog.Show()
693            dialog.Raise()
694    
695        def LayerJoinTable(self):
696            layer = self.canvas.SelectedLayer()
697            if layer is not None:
698                dlg = JoinDialog(self, _("Join Layer with Table"),
699                                 self.application.session,
700                                 layer = layer)
701                dlg.ShowModal()
702    
703        def LayerUnjoinTable(self):
704            layer = self.canvas.SelectedLayer()
705            if layer is not None:
706                orig_store = layer.ShapeStore().OrigShapeStore()
707                if orig_store:
708                    layer.SetShapeStore(orig_store)
709    
710        def ShowLegend(self):
711            if not self.LegendShown():
712                self.ToggleLegend()
713    
714        def ToggleLegend(self):
715            """Show the legend if it's not shown otherwise hide it again"""
716            name = "legend"
717            dialog = self.FindRegisteredDock(name)
718    
719            if dialog is None:
720                dialog = self.CreateDock(name, -1, _("Legend"), wxLAYOUT_LEFT)
721                legend.LegendPanel(dialog, None, self)
722                dialog.Dock()
723                dialog.GetPanel().SetMap(self.Map())
724                dialog.Show()
725            else:
726                dialog.Show(not dialog.IsShown())
727    
728        def LegendShown(self):
729            """Return true iff the legend is currently open"""
730            dialog = self.FindRegisteredDock("legend")
731            return dialog is not None and dialog.IsShown()
732    
733        def TableOpen(self):
734            dlg = wxFileDialog(self, _("Open Table"),
735                               self.application.Path("data"), "",
736                               _("DBF Files (*.dbf)") + "|*.dbf|" +
737                               #_("CSV Files (*.csv)") + "|*.csv|" +
738                               _("All Files (*.*)") + "|*.*",
739                               wxOPEN)
740            if dlg.ShowModal() == wxID_OK:
741                filename = dlg.GetPath()
742                dlg.Destroy()
743                try:
744                    table = self.application.session.OpenTableFile(filename)
745                except IOError:
746                    # the layer couldn't be opened
747                    self.RunMessageBox(_("Open Table"),
748                                       _("Can't open the file '%s'.") % filename)
749              else:              else:
750                  proj = None                  self.ShowTableView(table)
751              map.SetProjection(proj)                  self.application.SetPath("data",filename)
752          proj4Dlg.Destroy()  
753        def TableClose(self):
754            tables = self.application.session.UnreferencedTables()
755    
756            lst = [(t.Title(), t) for t in tables]
757            lst.sort()
758            titles = [i[0] for i in lst]
759            dlg = wxMultipleChoiceDialog(self, _("Pick the tables to close:"),
760                                         _("Close Table"), titles,
761                                         size = (400, 300),
762                                         style = wxDEFAULT_DIALOG_STYLE |
763                                                 wxRESIZE_BORDER)
764            if dlg.ShowModal() == wxID_OK:
765                for i in dlg.GetValue():
766                    self.application.session.RemoveTable(lst[i][1])
767    
768    
769        def TableShow(self):
770            """Offer a multi-selection dialog for tables to be displayed
771    
772            The windows for the selected tables are opened or brought to
773            the front.
774            """
775            tables = self.application.session.Tables()
776    
777            lst = [(t.Title(), t) for t in tables]
778            lst.sort()
779            titles = [i[0] for i in lst]
780            dlg = wxMultipleChoiceDialog(self, _("Pick the table to show:"),
781                                         _("Show Table"), titles,
782                                         size = (400,300),
783                                         style = wxDEFAULT_DIALOG_STYLE |
784                                                 wxRESIZE_BORDER)
785            if (dlg.ShowModal() == wxID_OK):
786                for i in dlg.GetValue():
787                    # XXX: if the table belongs to a layer, open a
788                    # LayerTableFrame instead of QueryTableFrame
789                    self.ShowTableView(lst[i][1])
790    
791        def TableJoin(self):
792            dlg = JoinDialog(self, _("Join Tables"), self.application.session)
793            dlg.ShowModal()
794    
795        def ShowTableView(self, table):
796            """Open a table view for the table and optionally"""
797            name = "table_view%d" % id(table)
798            dialog = self.get_open_dialog(name)
799            if dialog is None:
800                dialog = tableview.QueryTableFrame(self, name,
801                                                   _("Table: %s") % table.Title(),
802                                                   table)
803                self.add_dialog(name, dialog)
804                dialog.Show(True)
805            dialog.Raise()
806    
807        def TableRename(self):
808            """Let the user rename a table"""
809    
810            # First, let the user select a table
811            tables = self.application.session.Tables()
812            lst = [(t.Title(), t) for t in tables]
813            lst.sort()
814            titles = [i[0] for i in lst]
815            dlg = wxMultipleChoiceDialog(self, _("Pick the table to rename:"),
816                                         _("Rename Table"), titles,
817                                         size = (400,300),
818                                         style = wxDEFAULT_DIALOG_STYLE |
819                                                 wxRESIZE_BORDER)
820            if (dlg.ShowModal() == wxID_OK):
821                to_rename = [lst[i][1] for i in dlg.GetValue()]
822                dlg.Destroy()
823            else:
824                to_rename = []
825    
826            # Second, let the user rename the layers
827            for table in to_rename:
828                dlg = wxTextEntryDialog(self, _("Table Title:"), _("Rename Table"),
829                                        table.Title())
830                try:
831                    if dlg.ShowModal() == wxID_OK:
832                        title = dlg.GetValue()
833                        if title != "":
834                            table.SetTitle(title)
835    
836                            # Make sure the session is marked as modified.
837                            # FIXME: This should be handled automatically,
838                            # but that requires more changes to the tables
839                            # than I have time for currently.
840                            self.application.session.changed()
841                finally:
842                    dlg.Destroy()
843    
844    
845      def ZoomInTool(self):      def ZoomInTool(self):
846          self.canvas.ZoomInTool()          self.canvas.ZoomInTool()
# Line 463  class MainWindow(wxFrame): Line 861  class MainWindow(wxFrame):
861      def FullExtent(self):      def FullExtent(self):
862          self.canvas.FitMapToWindow()          self.canvas.FitMapToWindow()
863    
864        def FullLayerExtent(self):
865            self.canvas.FitLayerToWindow(self.current_layer())
866    
867        def FullSelectionExtent(self):
868            self.canvas.FitSelectedToWindow()
869    
870        def ExportMap(self):
871            self.canvas.Export()
872    
873      def PrintMap(self):      def PrintMap(self):
874          self.canvas.Print()          self.canvas.Print()
875    
876      def identify_view_on_demand(self, layer, shape):      def RenameMap(self):
877            dlg = wxTextEntryDialog(self, _("Map Title:"), _("Rename Map"),
878                                    self.Map().Title())
879            if dlg.ShowModal() == wxID_OK:
880                title = dlg.GetValue()
881                if title != "":
882                    self.Map().SetTitle(title)
883    
884            dlg.Destroy()
885    
886        def RenameLayer(self):
887            """Let the user rename the currently selected layer"""
888            layer = self.current_layer()
889            if layer is not None:
890                dlg = wxTextEntryDialog(self, _("Layer Title:"), _("Rename Layer"),
891                                        layer.Title())
892                try:
893                    if dlg.ShowModal() == wxID_OK:
894                        title = dlg.GetValue()
895                        if title != "":
896                            layer.SetTitle(title)
897                finally:
898                    dlg.Destroy()
899    
900        def identify_view_on_demand(self, layer, shapes):
901            """Subscribed to the canvas' SHAPES_SELECTED message
902    
903            If the current tool is the identify tool, at least one shape is
904            selected and the identify dialog is not shown, show the dialog.
905            """
906            # If the selection has become empty we don't need to do
907            # anything. Otherwise it could happen that the dialog was popped
908            # up when the selection became empty, e.g. when a new selection
909            # is opened while the identify tool is active and dialog had
910            # been closed
911            if not shapes:
912                return
913    
914          name = "identify_view"          name = "identify_view"
915          if self.canvas.CurrentTool() == "IdentifyTool":          if self.canvas.CurrentTool() == "IdentifyTool":
916              if not self.dialog_open(name):              if not self.dialog_open(name):
917                  dialog = identifyview.IdentifyView(self, self.interactor, name)                  dialog = identifyview.IdentifyView(self, name)
918                  self.add_dialog(name, dialog)                  self.add_dialog(name, dialog)
919                  dialog.Show(true)                  dialog.Show(True)
920              else:              else:
921                  # FIXME: bring dialog to front?                  # FIXME: bring dialog to front?
922                  pass                  pass
923    
924        def title_changed(self, map):
925            """Subscribed to the canvas' TITLE_CHANGED messages"""
926            self.update_title()
927    
928        def update_title(self):
929            """Update the window's title according to it's current state.
930    
931            In this default implementation the title is 'Thuban - ' followed
932            by the map's title or simply 'Thuban' if there is not map.
933            Derived classes should override this method to get different
934            titles.
935    
936            This method is called automatically by other methods when the
937            title may have to change. For the methods implemented in this
938            class this usually only means that a different map has been set
939            or the current map's title has changed.
940            """
941            map = self.Map()
942            if map is not None:
943                title = _("Thuban - %s") % (map.Title(),)
944            else:
945                title = _("Thuban")
946            self.SetTitle(title)
947    
948    
949  #  #
950  # Define all the commands available in the main window  # Define all the commands available in the main window
951  #  #
# Line 484  class MainWindow(wxFrame): Line 953  class MainWindow(wxFrame):
953    
954  # Helper functions to define common command implementations  # Helper functions to define common command implementations
955  def call_method(context, methodname, *args):  def call_method(context, methodname, *args):
956      """Call the context's method methodname with args *args"""      """Call the mainwindow's method methodname with args *args"""
957      apply(getattr(context, methodname), args)      apply(getattr(context.mainwindow, methodname), args)
958    
959  def _method_command(name, title, method, helptext = "",  def _method_command(name, title, method, helptext = "",
960                      icon = "", sensitive = None):                      icon = "", sensitive = None, checked = None):
961      """Add a command implemented by a method of the context object"""      """Add a command implemented by a method of the mainwindow object"""
962      registry.Add(Command(name, title, call_method, args=(method,),      registry.Add(Command(name, title, call_method, args=(method,),
963                           helptext = helptext, icon = icon,                           helptext = helptext, icon = icon,
964                           sensitive = sensitive))                           sensitive = sensitive, checked = checked))
965    
966    def make_check_current_tool(toolname):
967        """Return a function that tests if the currently active tool is toolname
968    
969        The returned function can be called with the context and returns
970        true iff the currently active tool's name is toolname. It's directly
971        usable as the 'checked' callback of a command.
972        """
973        def check_current_tool(context, name=toolname):
974            return context.mainwindow.canvas.CurrentTool() == name
975        return check_current_tool
976    
977  def _tool_command(name, title, method, toolname, helptext = "",  def _tool_command(name, title, method, toolname, helptext = "",
978                    icon = ""):                    icon = "", sensitive = None):
979      """Add a tool command"""      """Add a tool command"""
980      def check_current_tool(context, name=toolname):      registry.Add(ToolCommand(name, title, call_method, args=(method,),
981          return context.canvas.CurrentTool() == name                               helptext = helptext, icon = icon,
982      registry.Add(Command(name, title, call_method, args=(method,),                               checked = make_check_current_tool(toolname),
983                           helptext = helptext, icon = icon,                               sensitive = sensitive))
                          checked = check_current_tool))  
984    
985  def _has_selected_layer(context):  def _has_selected_layer(context):
986      """Return true if a layer is selected in the context"""      """Return true if a layer is selected in the context"""
987      return context.has_selected_layer()      return context.mainwindow.has_selected_layer()
988    
989    def _has_selected_shape_layer(context):
990        """Return true if a shape layer is selected in the context"""
991        return context.mainwindow.has_selected_shape_layer()
992    
993    def _has_selected_shapes(context):
994        """Return true if a layer is selected in the context"""
995        return context.mainwindow.has_selected_shapes()
996    
997    def _can_remove_layer(context):
998        return context.mainwindow.CanRemoveLayer()
999    
1000    def _has_tree_window_shown(context):
1001        """Return true if the tree window is shown"""
1002        return context.mainwindow.SessionTreeShown()
1003    
1004    def _has_visible_map(context):
1005        """Return true iff theres a visible map in the mainwindow.
1006    
1007        A visible map is a map with at least one visible layer."""
1008        map = context.mainwindow.Map()
1009        if map is not None:
1010            for layer in map.Layers():
1011                if layer.Visible():
1012                    return 1
1013        return 0
1014    
1015    def _has_legend_shown(context):
1016        """Return true if the legend window is shown"""
1017        return context.mainwindow.LegendShown()
1018    
1019    def _has_gdal_support(context):
1020        """Return True if the GDAL is available"""
1021        return Thuban.Model.resource.has_gdal_support()
1022    
1023    def _has_dbconnections(context):
1024        """Return whether the the session has database connections"""
1025        return context.session.HasDBConnections()
1026    
1027    def _has_postgis_support(context):
1028        return has_postgis_support()
1029    
1030    
1031  # File menu  # File menu
1032  _method_command("new_session", "&New Session", "NewSession")  _method_command("new_session", _("&New Session"), "NewSession",
1033  _method_command("open_session", "&Open Session", "OpenSession")                  helptext = _("Start a new session"))
1034  _method_command("save_session", "&Save Session", "SaveSession")  _method_command("open_session", _("&Open Session..."), "OpenSession",
1035  _method_command("save_session_as", "Save Session &As", "SaveSessionAs")                  helptext = _("Open a session file"))
1036  _method_command("show_session_tree", "Show Session &Tree", "ShowSessionTree")  _method_command("save_session", _("&Save Session"), "SaveSession",
1037  _method_command("exit", "&Exit", "Exit")                  helptext =_("Save this session to the file it was opened from"))
1038    _method_command("save_session_as", _("Save Session &As..."), "SaveSessionAs",
1039                    helptext = _("Save this session to a new file"))
1040    _method_command("toggle_session_tree", _("Session &Tree"), "ToggleSessionTree",
1041                    checked = _has_tree_window_shown,
1042                    helptext = _("Toggle on/off the session tree analysis window"))
1043    _method_command("toggle_legend", _("Legend"), "ToggleLegend",
1044                    checked = _has_legend_shown,
1045                    helptext = _("Toggle Legend on/off"))
1046    _method_command("database_management", _("&Database Connections..."),
1047                    "DatabaseManagement",
1048                    sensitive = _has_postgis_support)
1049    _method_command("exit", _("E&xit"), "Exit",
1050                    helptext = _("Finish working with Thuban"))
1051    
1052  # Help menu  # Help menu
1053  _method_command("help_about", "&About", "About")  _method_command("help_about", _("&About..."), "About",
1054                    helptext = _("Info about Thuban authors, version and modules"))
1055    
1056    
1057  # Map menu  # Map menu
1058  _method_command("map_projection", "Pro&jection", "Projection")  _method_command("map_projection", _("Pro&jection..."), "MapProjection",
1059                    helptext = _("Set or change the map projection"))
1060    
1061  _tool_command("map_zoom_in_tool", "&Zoom in", "ZoomInTool", "ZoomInTool",  _tool_command("map_zoom_in_tool", _("&Zoom in"), "ZoomInTool", "ZoomInTool",
1062                helptext = "Switch to map-mode 'zoom-in'", icon = "zoom_in")                helptext = _("Switch to map-mode 'zoom-in'"), icon = "zoom_in",
1063  _tool_command("map_zoom_out_tool", "Zoom &out", "ZoomOutTool", "ZoomOutTool",                sensitive = _has_visible_map)
1064                helptext = "Switch to map-mode 'zoom-out'", icon = "zoom_out")  _tool_command("map_zoom_out_tool", _("Zoom &out"), "ZoomOutTool", "ZoomOutTool",
1065  _tool_command("map_pan_tool", "&Pan", "PanTool", "PanTool",                helptext = _("Switch to map-mode 'zoom-out'"), icon = "zoom_out",
1066                helptext = "Switch to map-mode 'pan'", icon = "pan")                sensitive = _has_visible_map)
1067  _tool_command("map_identify_tool", "&Identify", "IdentifyTool", "IdentifyTool",  _tool_command("map_pan_tool", _("&Pan"), "PanTool", "PanTool",
1068                helptext = "Switch to map-mode 'identify'", icon = "identify")                helptext = _("Switch to map-mode 'pan'"), icon = "pan",
1069  _tool_command("map_label_tool", "&Label", "LabelTool", "LabelTool",                sensitive = _has_visible_map)
1070                helptext = "Add/Remove labels", icon = "label")  _tool_command("map_identify_tool", _("&Identify"), "IdentifyTool",
1071  _method_command("map_full_extent", "&Full extent", "FullExtent",                "IdentifyTool",
1072                 helptext = "Full Extent", icon = "fullextent")                helptext = _("Switch to map-mode 'identify'"), icon = "identify",
1073  _method_command("map_print", "Prin&t", "PrintMap", helptext = "Print the map")                sensitive = _has_visible_map)
1074    _tool_command("map_label_tool", _("&Label"), "LabelTool", "LabelTool",
1075                  helptext = _("Add/Remove labels"), icon = "label",
1076                  sensitive = _has_visible_map)
1077    _method_command("map_full_extent", _("&Full extent"), "FullExtent",
1078                   helptext = _("Zoom to the full map extent"), icon = "fullextent",
1079                  sensitive = _has_visible_map)
1080    _method_command("layer_full_extent", _("&Full layer extent"), "FullLayerExtent",
1081                    helptext = _("Zoom to the full layer extent"),
1082                    icon = "fulllayerextent", sensitive = _has_selected_layer)
1083    _method_command("selected_full_extent", _("&Full selection extent"),
1084                    "FullSelectionExtent",
1085                    helptext = _("Zoom to the full selection extent"),
1086                    icon = "fullselextent", sensitive = _has_selected_shapes)
1087    _method_command("map_export", _("E&xport"), "ExportMap",
1088                    helptext = _("Export the map to file"))
1089    _method_command("map_print", _("Prin&t"), "PrintMap",
1090                    helptext = _("Print the map"))
1091    _method_command("map_rename", _("&Rename..."), "RenameMap",
1092                    helptext = _("Rename the map"))
1093    _method_command("layer_add", _("&Add Layer..."), "AddLayer",
1094                    helptext = _("Add a new layer to the map"))
1095    _method_command("rasterlayer_add", _("&Add Image Layer..."), "AddRasterLayer",
1096                    helptext = _("Add a new image layer to the map"),
1097                    sensitive = _has_gdal_support)
1098    _method_command("layer_add_db", _("Add &Database Layer..."), "AddDBLayer",
1099                    helptext = _("Add a new database layer to active map"),
1100                    sensitive = _has_dbconnections)
1101    _method_command("layer_remove", _("&Remove Layer"), "RemoveLayer",
1102                    helptext = _("Remove selected layer"),
1103                    sensitive = _can_remove_layer)
1104    
1105  # Layer menu  # Layer menu
1106  _method_command("layer_add", "&Add Layer", "AddLayer",  _method_command("layer_projection", _("Pro&jection..."), "LayerProjection",
1107                  helptext = "Add a new layer to active map")                  sensitive = _has_selected_layer,
1108  _method_command("layer_remove", "&Remove Layer", "RemoveLayer",                  helptext = _("Specify projection for selected layer"))
1109                  helptext = "Remove selected layer(s)",  _method_command("layer_duplicate", _("&Duplicate"), "DuplicateLayer",
1110                    helptext = _("Duplicate selected layer"),
1111              sensitive = lambda context: context.mainwindow.CanDuplicateLayer())
1112    _method_command("layer_rename", _("Re&name ..."), "RenameLayer",
1113                    helptext = _("Rename selected layer"),
1114                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1115  _method_command("layer_fill_color", "&Fill Color", "LayerFillColor",  _method_command("layer_raise", _("&Raise"), "RaiseLayer",
1116                  helptext = "Set the fill color of selected layer(s)",                  helptext = _("Raise selected layer"),
1117                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1118  _method_command("layer_transparent_fill", "&Transparent Fill",  _method_command("layer_lower", _("&Lower"), "LowerLayer",
1119                  "LayerTransparentFill",                  helptext = _("Lower selected layer"),
                 helptext = "Do not fill the selected layer(s)",  
1120                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1121  _method_command("layer_outline_color", "&Outline Color", "LayerOutlineColor",  _method_command("layer_show", _("&Show"), "ShowLayer",
1122                  helptext = "Set the outline color of selected layer(s)",                  helptext = _("Make selected layer visible"),
1123                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1124  _method_command("layer_no_outline", "&No Outline", "LayerNoOutline",  _method_command("layer_hide", _("&Hide"), "HideLayer",
1125                  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",  
1126                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1127    _method_command("layer_show_table", _("Show Ta&ble"), "LayerShowTable",
1128                    helptext = _("Show the selected layer's table"),
1129                    sensitive = _has_selected_shape_layer)
1130    _method_command("layer_properties", _("&Properties..."), "LayerEditProperties",
1131                    sensitive = _has_selected_layer,
1132                    helptext = _("Edit the properties of the selected layer"))
1133    _method_command("layer_jointable", _("&Join Table..."), "LayerJoinTable",
1134                    sensitive = _has_selected_shape_layer,
1135                    helptext = _("Join and attach a table to the selected layer"))
1136    
1137    def _can_unjoin(context):
1138        """Return whether the Layer/Unjoin command can be executed.
1139    
1140        This is the case if a layer is selected and that layer has a
1141        shapestore that has an original shapestore.
1142        """
1143        layer = context.mainwindow.SelectedLayer()
1144        if layer is None:
1145            return 0
1146        getstore = getattr(layer, "ShapeStore", None)
1147        if getstore is not None:
1148            return getstore().OrigShapeStore() is not None
1149        else:
1150            return 0
1151    _method_command("layer_unjointable", _("&Unjoin Table..."), "LayerUnjoinTable",
1152                    sensitive = _can_unjoin,
1153                    helptext = _("Undo the last join operation"))
1154    
1155    
1156    def _has_tables(context):
1157        return bool(context.session.Tables())
1158    
1159    # Table menu
1160    _method_command("table_open", _("&Open..."), "TableOpen",
1161                    helptext = _("Open a DBF-table from a file"))
1162    _method_command("table_close", _("&Close..."), "TableClose",
1163           sensitive = lambda context: bool(context.session.UnreferencedTables()),
1164                    helptext = _("Close one or more tables from a list"))
1165    _method_command("table_rename", _("&Rename..."), "TableRename",
1166                    sensitive = _has_tables,
1167                    helptext = _("Rename one or more tables"))
1168    _method_command("table_show", _("&Show..."), "TableShow",
1169                    sensitive = _has_tables,
1170                    helptext = _("Show one or more tables in a dialog"))
1171    _method_command("table_join", _("&Join..."), "TableJoin",
1172                    sensitive = _has_tables,
1173                    helptext = _("Join two tables creating a new one"))
1174    
1175    #  Export only under Windows ...
1176    map_menu = ["layer_add", "layer_add_db", "rasterlayer_add", "layer_remove",
1177                            None,
1178                            "map_rename",
1179                            "map_projection",
1180                            None,
1181                            "map_zoom_in_tool", "map_zoom_out_tool",
1182                            "map_pan_tool",
1183                            "map_full_extent",
1184                            "layer_full_extent",
1185                            "selected_full_extent",
1186                            None,
1187                            "map_identify_tool", "map_label_tool",
1188                            None,
1189                            "toggle_legend",
1190                            None]
1191    if wxPlatform == '__WXMSW__':
1192        map_menu.append("map_export")
1193    map_menu.append("map_print")
1194    
1195    # the menu structure
1196    main_menu = Menu("<main>", "<main>",
1197                     [Menu("file", _("&File"),
1198                           ["new_session", "open_session", None,
1199                            "save_session", "save_session_as", None,
1200                            "database_management", None,
1201                            "toggle_session_tree", None,
1202                            "exit"]),
1203                      Menu("map", _("&Map"), map_menu),
1204                      Menu("layer", _("&Layer"),
1205                           ["layer_rename", "layer_duplicate",
1206                            None,
1207                            "layer_raise", "layer_lower",
1208                            None,
1209                            "layer_show", "layer_hide",
1210                            None,
1211                            "layer_projection",
1212                            None,
1213                            "layer_show_table",
1214                            "layer_jointable",
1215                            "layer_unjointable",
1216                            None,
1217                            "layer_properties"]),
1218                      Menu("table", _("&Table"),
1219                           ["table_open", "table_close", "table_rename",
1220                           None,
1221                           "table_show",
1222                           None,
1223                           "table_join"]),
1224                      Menu("help", _("&Help"),
1225                           ["help_about"])])
1226    
1227    # the main toolbar
1228    
1229    main_toolbar = Menu("<toolbar>", "<toolbar>",
1230                        ["map_zoom_in_tool", "map_zoom_out_tool", "map_pan_tool",
1231                         "map_full_extent",
1232                         "layer_full_extent",
1233                         "selected_full_extent",
1234                         None,
1235                         "map_identify_tool", "map_label_tool"])
1236    
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