/[thuban]/branches/WIP-pyshapelib-bramz/Thuban/UI/mainwindow.py
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revision 270 by bh, Thu Aug 22 13:46:46 2002 UTC revision 2529 by russell, Thu Jan 20 17:55:23 2005 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 os  import os
19    import copy
20    
21  from wxPython.wx import *  from wxPython.wx import *
22    
23  import Thuban  import Thuban
24    
25    from Thuban import _
26    from Thuban.Model.messages import TITLE_CHANGED
27  from Thuban.Model.session import create_empty_session  from Thuban.Model.session import create_empty_session
28  from Thuban.Model.layer import Layer  from Thuban.Model.layer import Layer, RasterLayer
29  from Thuban.Model.color import Color  from Thuban.Model.postgisdb import PostGISShapeStore, has_postgis_support
30  from Thuban.Model.proj import Projection  # 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    import legend
39  from menu import Menu  from menu import Menu
40    
41  from context import Context  from context import Context
42  from command import registry, Command  from command import registry, Command, ToolCommand
43  from messages import SELECTED_SHAPE, VIEW_POSITION  from messages import LAYER_SELECTED, SHAPES_SELECTED, VIEW_POSITION, \
44         MAP_REPLACED
45    from about import About
46  # the directory where the toolbar icons are stored  
47  bitmapdir = os.path.join(Thuban.__path__[0], os.pardir, "Resources", "Bitmaps")  from Thuban.UI.dock import DockFrame
48  bitmapext = ".xpm"  from Thuban.UI.join import JoinDialog
49    from Thuban.UI.dbdialog import DBFrame, DBDialog, ChooseDBTableDialog
50    import resource
51  class MainWindow(wxFrame):  import Thuban.Model.resource
52    
53    import projdialog
54    
55    from Thuban.Lib.classmapper import ClassMapper
56    
57    layer_properties_dialogs = ClassMapper()
58    
59    class MainWindow(DockFrame):
60    
61        # Some messages that can be subscribed/unsubscribed directly through
62        # the MapCanvas come in fact from other objects. This is a map to
63        # map those messages to the names of the instance variables they
64        # actually come from. This delegation is implemented in the
65        # Subscribe and unsubscribed methods
66        delegated_messages = {LAYER_SELECTED: "canvas",
67                              SHAPES_SELECTED: "canvas",
68                              MAP_REPLACED: "canvas"}
69    
70        # Methods delegated to some instance variables. The delegation is
71        # implemented in the __getattr__ method.
72        delegated_methods = {"SelectLayer": "canvas",
73                             "SelectShapes": "canvas",
74                             "SelectedLayer": "canvas",
75                             "SelectedShapes": "canvas",
76                             }
77    
78      def __init__(self, parent, ID, title, application, interactor,      def __init__(self, parent, ID, title, application, interactor,
79                   initial_message = None, size = wxSize(-1, -1)):                   initial_message = None, size = wxSize(-1, -1)):
80          wxFrame.__init__(self, parent, ID, title, wxDefaultPosition, size)          DockFrame.__init__(self, parent, ID, title, wxDefaultPosition, size)
81            #wxFrame.__init__(self, parent, ID, title, wxDefaultPosition, size)
82    
83          self.application = application          self.application = application
         self.interactor = interactor  
84    
85          self.CreateStatusBar()          self.CreateStatusBar()
86          if initial_message:          if initial_message:
# Line 63  class MainWindow(wxFrame): Line 98  class MainWindow(wxFrame):
98          # call Realize to make sure that the tools appear.          # call Realize to make sure that the tools appear.
99          toolbar.Realize()          toolbar.Realize()
100    
101    
102          # Create the map canvas          # Create the map canvas
103          canvas = view.MapCanvas(self, -1, interactor)          canvas = view.MapCanvas(self, -1)
104          canvas.Subscribe(VIEW_POSITION, self.view_position_changed)          canvas.Subscribe(VIEW_POSITION, self.view_position_changed)
105            canvas.Subscribe(SHAPES_SELECTED, self.identify_view_on_demand)
106          self.canvas = canvas          self.canvas = canvas
107            self.canvas.Subscribe(TITLE_CHANGED, self.title_changed)
108    
109            self.SetMainWindow(self.canvas)
110    
111            self.SetAutoLayout(True)
112    
113          self.init_dialogs()          self.init_dialogs()
114    
115          interactor.Subscribe(SELECTED_SHAPE, self.identify_view_on_demand)          self.ShowLegend()
116    
117          EVT_CLOSE(self, self.OnClose)          EVT_CLOSE(self, self.OnClose)
118    
119        def Subscribe(self, channel, *args):
120            """Subscribe a function to a message channel.
121    
122            If channel is one of the delegated messages call the appropriate
123            object's Subscribe method. Otherwise do nothing.
124            """
125            if channel in self.delegated_messages:
126                object = getattr(self, self.delegated_messages[channel])
127                object.Subscribe(channel, *args)
128            else:
129                print "Trying to subscribe to unsupported channel %s" % channel
130    
131        def Unsubscribe(self, channel, *args):
132            """Unsubscribe a function from a message channel.
133    
134            If channel is one of the delegated messages call the appropriate
135            object's Unsubscribe method. Otherwise do nothing.
136            """
137            if channel in self.delegated_messages:
138                object = getattr(self, self.delegated_messages[channel])
139                try:
140                    object.Unsubscribe(channel, *args)
141                except wxPyDeadObjectError:
142                    # The object was a wxObject and has already been
143                    # destroyed. Hopefully it has unsubscribed all its
144                    # subscribers already so that it's OK if we do nothing
145                    # here
146                    pass
147    
148        def __getattr__(self, attr):
149            """If attr is one of the delegated methods return that method
150    
151            Otherwise raise AttributeError.
152            """
153            if attr in self.delegated_methods:
154                return getattr(getattr(self, self.delegated_methods[attr]), attr)
155            raise AttributeError(attr)
156    
157      def init_ids(self):      def init_ids(self):
158          """Initialize the ids"""          """Initialize the ids"""
159          self.current_id = 6000          self.current_id = 6000
# Line 112  class MainWindow(wxFrame): Line 192  class MainWindow(wxFrame):
192          return menu_bar          return menu_bar
193    
194      def build_menu(self, menudesc):      def build_menu(self, menudesc):
195          """Build and return a wxMenu from a menudescription"""          """Return a wxMenu built from the menu description menudesc"""
196          wxmenu = wxMenu()          wxmenu = wxMenu()
197          last = None          last = None
198          for item in menudesc.items:          for item in menudesc.items:
             # here the items must all be Menu instances themselves  
199              if item is None:              if item is None:
200                  # a separator. Only add one if the last item was not a                  # a separator. Only add one if the last item was not a
201                  # separator                  # separator
# Line 169  class MainWindow(wxFrame): Line 248  class MainWindow(wxFrame):
248                              command.IsCheckCommand())                              command.IsCheckCommand())
249                  self.bind_command_events(command, ID)                  self.bind_command_events(command, ID)
250              else:              else:
251                  print "Unknown command %s" % name                  print _("Unknown command %s") % name
252    
253      def add_toolbar_command(self, toolbar, name):      def add_toolbar_command(self, toolbar, name):
254          """Add the command with name name to the toolbar toolbar.          """Add the command with name name to the toolbar toolbar.
# Line 184  class MainWindow(wxFrame): Line 263  class MainWindow(wxFrame):
263              command = registry.Command(name)              command = registry.Command(name)
264              if command is not None:              if command is not None:
265                  ID = self.get_id(name)                  ID = self.get_id(name)
266                  filename = os.path.join(bitmapdir, command.Icon()) + bitmapext                  bitmap = resource.GetBitmapResource(command.Icon(),
267                  bitmap = wxBitmap(filename, wxBITMAP_TYPE_XPM)                                                      wxBITMAP_TYPE_XPM)
268                  toolbar.AddTool(ID, bitmap,                  toolbar.AddTool(ID, bitmap,
269                                  shortHelpString = command.HelpText(),                                  shortHelpString = command.HelpText(),
270                                  isToggle = command.IsCheckCommand())                                  isToggle = command.IsCheckCommand())
271                  self.bind_command_events(command, ID)                  self.bind_command_events(command, ID)
272              else:              else:
273                  print "Unknown command %s" % name                  print _("Unknown command %s") % name
274    
275        def Context(self):
276            """Return the context object for a command invoked from this window
277            """
278            return Context(self.application, self.application.Session(), self)
279    
280      def invoke_command(self, event):      def invoke_command(self, event):
281          name = self.id_to_name.get(event.GetId())          name = self.id_to_name.get(event.GetId())
282          if name is not None:          if name is not None:
283              command = registry.Command(name)              command = registry.Command(name)
284              context = Context(self.application, self.application.Session(),              command.Execute(self.Context())
                               self)  
             command.Execute(context)  
285          else:          else:
286              print "Unknown command ID %d" % event.GetId()              print _("Unknown command ID %d") % event.GetId()
287    
288      def update_command_ui(self, event):      def update_command_ui(self, event):
289          #print "update_command_ui", self.id_to_name[event.GetId()]          #print "update_command_ui", self.id_to_name[event.GetId()]
290          context = Context(self.application, self.application.Session(), self)          context = self.Context()
291          command = registry.Command(self.id_to_name[event.GetId()])          command = registry.Command(self.id_to_name[event.GetId()])
292          if command is not None:          if command is not None:
293              event.Enable(command.Sensitive(context))              sensitive = command.Sensitive(context)
294                event.Enable(sensitive)
295                if command.IsTool() and not sensitive and command.Checked(context):
296                    # When a checked tool command is disabled deselect all
297                    # tools. Otherwise the tool would remain active but it
298                    # might lead to errors if the tools stays active. This
299                    # problem occurred in GREAT-ER and this fixes it, but
300                    # it's not clear to me whether this is really the best
301                    # way to do it (BH, 20021206).
302                    self.canvas.SelectTool(None)
303              event.SetText(command.DynText(context))              event.SetText(command.DynText(context))
304              if command.IsCheckCommand():              if command.IsCheckCommand():
305                  event.Check(command.Checked(context))                      event.Check(command.Checked(context))
306    
307      def RunMessageBox(self, title, text, flags = wxOK | wxICON_INFORMATION):      def RunMessageBox(self, title, text, flags = wxOK | wxICON_INFORMATION):
308          """Run a modal message box with the given text, title and flags          """Run a modal message box with the given text, title and flags
309          and return the result"""          and return the result"""
310          dlg = wxMessageDialog(self, text, title, flags)          dlg = wxMessageDialog(self, text, title, flags)
311            dlg.CenterOnParent()
312          result = dlg.ShowModal()          result = dlg.ShowModal()
313          dlg.Destroy()          dlg.Destroy()
314          return result          return result
# Line 230  class MainWindow(wxFrame): Line 322  class MainWindow(wxFrame):
322    
323      def add_dialog(self, name, dialog):      def add_dialog(self, name, dialog):
324          if self.dialogs.has_key(name):          if self.dialogs.has_key(name):
325              raise RuntimeError("The Dialog named %s is already open" % name)              raise RuntimeError(_("The Dialog named %s is already open") % name)
326          self.dialogs[name] = dialog          self.dialogs[name] = dialog
327    
328      def dialog_open(self, name):      def dialog_open(self, name):
# Line 248  class MainWindow(wxFrame): Line 340  class MainWindow(wxFrame):
340              text = "(%10.10g, %10.10g)" % pos              text = "(%10.10g, %10.10g)" % pos
341          else:          else:
342              text = ""              text = ""
343                map = self.canvas.Map()
344                for layer in map.layers:
345                    bbox = layer.LatLongBoundingBox()
346                    if bbox:
347                        left, bottom, right, top = bbox
348                        if not (-180 <= left <= 180 and
349                            -180 <= right <= 180 and
350                            -90 <= top <= 90 and
351                            -90 <= bottom <= 90):
352                            text = ("Select '"+layer.title+"' and pick a " +
353                                "projection using Layer/Projection...")
354                            break
355    
356            self.set_position_text(text)
357    
358        def set_position_text(self, text):
359            """Set the statusbar text showing the current position.
360    
361            By default the text is shown in field 0 of the status bar.
362            Override this method in derived classes to put it into a
363            different field of the statusbar.
364            """
365          self.SetStatusText(text)          self.SetStatusText(text)
366    
367        def OpenOrRaiseDialog(self, name, dialog_class, *args, **kw):
368            """
369            Open or raise a dialog.
370    
371            If a dialog with the denoted name does already exist it is
372            raised.  Otherwise a new dialog, an instance of dialog_class,
373            is created, inserted into the main list and displayed.
374            """
375            dialog = self.get_open_dialog(name)
376    
377            if dialog is None:
378                dialog = dialog_class(self, name, *args, **kw)
379                self.add_dialog(name, dialog)
380                dialog.Show(True)
381            else:
382                dialog.Raise()
383                              
384      def save_modified_session(self, can_veto = 1):      def save_modified_session(self, can_veto = 1):
385          """If the current session has been modified, ask the user          """If the current session has been modified, ask the user
386          whether to save it and do so if requested. Return the outcome of          whether to save it and do so if requested. Return the outcome of
# Line 263  class MainWindow(wxFrame): Line 394  class MainWindow(wxFrame):
394              flags = wxYES_NO | wxICON_QUESTION              flags = wxYES_NO | wxICON_QUESTION
395              if can_veto:              if can_veto:
396                  flags = flags | wxCANCEL                  flags = flags | wxCANCEL
397              result = self.RunMessageBox("Exit",              result = self.RunMessageBox(_("Exit"),
398                                          ("The session has been modified."                                          _("The session has been modified."
399                                           " Do you want to save it?"),                                           " Do you want to save it?"),
400                                          flags)                                          flags)
401              if result == wxID_YES:              if result == wxID_YES:
# Line 274  class MainWindow(wxFrame): Line 405  class MainWindow(wxFrame):
405          return result          return result
406    
407      def NewSession(self):      def NewSession(self):
408          self.save_modified_session()          if self.save_modified_session() != wxID_CANCEL:
409          self.application.SetSession(create_empty_session())              self.application.SetSession(create_empty_session())
410    
411      def OpenSession(self):      def OpenSession(self):
412          self.save_modified_session()          if self.save_modified_session() != wxID_CANCEL:
413          dlg = wxFileDialog(self, "Select a session file", ".", "",              dlg = wxFileDialog(self, _("Open Session"),
414                             "*.thuban", wxOPEN)                                 self.application.Path("data"), "",
415          if dlg.ShowModal() == wxID_OK:                                 "Thuban Session File (*.thuban)|*.thuban",
416              self.application.OpenSession(dlg.GetPath())                                 wxOPEN)
417          dlg.Destroy()              if dlg.ShowModal() == wxID_OK:
418                    self.application.OpenSession(dlg.GetPath(),
419                                                 self.run_db_param_dialog)
420                    self.application.SetPath("data", dlg.GetPath())
421                dlg.Destroy()
422    
423        def run_db_param_dialog(self, parameters, message):
424            dlg = DBDialog(self, _("DB Connection Parameters"), parameters,
425                           message)
426            return dlg.RunDialog()
427    
428      def SaveSession(self):      def SaveSession(self):
429          if self.application.session.filename == None:          if self.application.session.filename == None:
430              self.SaveSessionAs()              self.SaveSessionAs()
431          self.application.SaveSession()          else:
432                self.application.SaveSession()
433    
434      def SaveSessionAs(self):      def SaveSessionAs(self):
435          dlg = wxFileDialog(self, "Enter a filename for session", ".", "",          dlg = wxFileDialog(self, _("Save Session As"),
436                             "*.thuban", wxOPEN)                             self.application.Path("data"), "",
437                               "Thuban Session File (*.thuban)|*.thuban",
438                               wxSAVE|wxOVERWRITE_PROMPT)
439          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wxID_OK:
440              self.application.session.SetFilename(dlg.GetPath())              self.application.session.SetFilename(dlg.GetPath())
441              self.application.SaveSession()              self.application.SaveSession()
442                self.application.SetPath("data",dlg.GetPath())
443          dlg.Destroy()          dlg.Destroy()
444    
445      def Exit(self):      def Exit(self):
446          self.Close(false)          self.Close(False)
447    
448      def OnClose(self, event):      def OnClose(self, event):
449          result = self.save_modified_session(can_veto = event.CanVeto())          result = self.save_modified_session(can_veto = event.CanVeto())
450          if result == wxID_CANCEL:          if result == wxID_CANCEL:
451              event.Veto()              event.Veto()
452          else:          else:
453                # FIXME: it would be better to tie the unsubscription to
454                # wx's destroy event, but that isn't implemented for wxGTK
455                # yet.
456                self.canvas.Unsubscribe(VIEW_POSITION, self.view_position_changed)
457                DockFrame.OnClose(self, event)
458                for dlg in self.dialogs.values():
459                    dlg.Destroy()
460                self.canvas.Destroy()
461              self.Destroy()              self.Destroy()
462    
463      def SetMap(self, map):      def SetMap(self, map):
464          self.canvas.SetMap(map)          self.canvas.SetMap(map)
465            self.update_title()
466    
467      def ShowSessionTree(self):          dialog = self.FindRegisteredDock("legend")
468            if dialog is not None:
469                dialog.GetPanel().SetMap(self.Map())
470    
471        def Map(self):
472            """Return the map displayed by this mainwindow"""
473    
474            return self.canvas.Map()
475    
476        def ToggleSessionTree(self):
477            """If the session tree is shown close it otherwise create a new tree"""
478          name = "session_tree"          name = "session_tree"
479          dialog = self.get_open_dialog(name)          dialog = self.get_open_dialog(name)
480          if dialog is None:          if dialog is None:
481              dialog = tree.SessionTreeView(self, self.application, name)              dialog = tree.SessionTreeView(self, self.application, name)
482              self.add_dialog(name, dialog)              self.add_dialog(name, dialog)
483              dialog.Show(true)              dialog.Show(True)
484          else:          else:
485              # FIXME: bring dialog to front here              dialog.Close()
486              pass  
487        def SessionTreeShown(self):
488            """Return true iff the session tree is currently shown"""
489            return self.get_open_dialog("session_tree") is not None
490    
491      def About(self):      def About(self):
492          self.RunMessageBox("About",          dlg = About(self)
493                             ("Thuban is a program for\n"          dlg.ShowModal()
494                              "exploring geographic data.\n"          dlg.Destroy()
495                              "Copyright (C) 2001 Intevation GmbH.\n"  
496                              "Thuban is licensed under the GPL"),      def DatabaseManagement(self):
497                             wxOK | wxICON_INFORMATION)          name = "dbmanagement"
498            dialog = self.get_open_dialog(name)
499            if dialog is None:
500                map = self.canvas.Map()
501                dialog = DBFrame(self, name, self.application.Session())
502                self.add_dialog(name, dialog)
503                dialog.Show()
504            dialog.Raise()
505    
506      def AddLayer(self):      def AddLayer(self):
507          dlg = wxFileDialog(self, "Select a data file", ".", "", "*.*",          dlg = wxFileDialog(self, _("Select one or more data files"),
508                               self.application.Path("data"), "",
509                               _("Shapefiles (*.shp)") + "|*.shp;*.SHP|" +
510                               _("All Files (*.*)") + "|*.*",
511                               wxOPEN | wxMULTIPLE)
512            if dlg.ShowModal() == wxID_OK:
513                filenames = dlg.GetPaths()
514                for filename in filenames:
515                    title = os.path.splitext(os.path.basename(filename))[0]
516                    map = self.canvas.Map()
517                    has_layers = map.HasLayers()
518                    try:
519                        store = self.application.Session().OpenShapefile(filename)
520                    except IOError:
521                        # the layer couldn't be opened
522                        self.RunMessageBox(_("Add Layer"),
523                                           _("Can't open the file '%s'.")%filename)
524                    else:
525                        layer = Layer(title, store)
526                        map.AddLayer(layer)
527                        if not has_layers:
528                            # if we're adding a layer to an empty map, fit the
529                            # new map to the window
530                            self.canvas.FitMapToWindow()
531                        self.application.SetPath("data",filename)
532            dlg.Destroy()
533    
534        def AddRasterLayer(self):
535            dlg = wxFileDialog(self, _("Select an image file"),
536                               self.application.Path("data"), "", "*.*",
537                             wxOPEN)                             wxOPEN)
538          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wxID_OK:
539              filename = dlg.GetPath()              filename = dlg.GetPath()
540              title = os.path.splitext(os.path.basename(filename))[0]              title = os.path.splitext(os.path.basename(filename))[0]
             layer = Layer(title, filename)  
541              map = self.canvas.Map()              map = self.canvas.Map()
542              has_layers = map.HasLayers()              has_layers = map.HasLayers()
543              try:              try:
544                  map.AddLayer(layer)                  layer = RasterLayer(title, filename)
545              except IOError:              except IOError:
546                  # the layer couldn't be opened                  # the layer couldn't be opened
547                  self.RunMessageBox("Add Layer",                  self.RunMessageBox(_("Add Image Layer"),
548                                     "Can't open the file '%s'." % filename)                                     _("Can't open the file '%s'.") % filename)
549              else:              else:
550                    map.AddLayer(layer)
551                  if not has_layers:                  if not has_layers:
552                      # if we're adding a layer to an empty map, for the                      # if we're adding a layer to an empty map, fit the
553                      # new map to the window                      # new map to the window
554                      self.canvas.FitMapToWindow()                      self.canvas.FitMapToWindow()
555                    self.application.SetPath("data", filename)
556            dlg.Destroy()
557    
558        def AddDBLayer(self):
559            """Add a layer read from a database"""
560            session = self.application.Session()
561            dlg = ChooseDBTableDialog(self, self.application.Session())
562    
563            if dlg.ShowModal() == wxID_OK:
564                dbconn, dbtable, id_column, geo_column = dlg.GetTable()
565                try:
566                    title = str(dbtable)
567    
568                    # Chose the correct Interface for the database type
569                    store = session.OpenDBShapeStore(dbconn, dbtable,
570                                                     id_column = id_column,
571                                                     geometry_column = geo_column)
572                    layer = Layer(title, store)
573                except:
574                    # Some error occured while initializing the layer
575                    self.RunMessageBox(_("Add Layer from database"),
576                                       _("Can't open the database table '%s'")
577                                       % dbtable)
578                    return
579    
580                map = self.canvas.Map()
581    
582                has_layers = map.HasLayers()
583                map.AddLayer(layer)
584                if not has_layers:
585                    self.canvas.FitMapToWindow()
586    
587          dlg.Destroy()          dlg.Destroy()
588    
589      def RemoveLayer(self):      def RemoveLayer(self):
# Line 357  class MainWindow(wxFrame): Line 591  class MainWindow(wxFrame):
591          if layer is not None:          if layer is not None:
592              self.canvas.Map().RemoveLayer(layer)              self.canvas.Map().RemoveLayer(layer)
593    
594        def CanRemoveLayer(self):
595            """Return true if the currently selected layer can be deleted.
596    
597            If no layer is selected return False.
598    
599            The return value of this method determines whether the remove
600            layer command is sensitive in menu.
601            """
602            layer = self.current_layer()
603            if layer is not None:
604                return self.canvas.Map().CanRemoveLayer(layer)
605            return False
606    
607        def LayerToTop(self):
608            layer = self.current_layer()
609            if layer is not None:
610                self.canvas.Map().MoveLayerToTop(layer)
611    
612      def RaiseLayer(self):      def RaiseLayer(self):
613          layer = self.current_layer()          layer = self.current_layer()
614          if layer is not None:          if layer is not None:
# Line 367  class MainWindow(wxFrame): Line 619  class MainWindow(wxFrame):
619          if layer is not None:          if layer is not None:
620              self.canvas.Map().LowerLayer(layer)              self.canvas.Map().LowerLayer(layer)
621    
622        def LayerToBottom(self):
623            layer = self.current_layer()
624            if layer is not None:
625                self.canvas.Map().MoveLayerToBottom(layer)
626    
627      def current_layer(self):      def current_layer(self):
628          """Return the currently selected layer.          """Return the currently selected layer.
629    
630          If no layer is selected, return None          If no layer is selected, return None
631          """          """
632          return self.interactor.SelectedLayer()          return self.canvas.SelectedLayer()
633    
634      def has_selected_layer(self):      def has_selected_layer(self):
635          """Return true if a layer is currently selected"""          """Return true if a layer is currently selected"""
636          return self.interactor.HasSelectedLayer()          return self.canvas.HasSelectedLayer()
   
     def choose_color(self):  
         """Run the color selection dialog and return the selected color.  
637    
638          If the user cancels, return None.      def has_selected_shape_layer(self):
639          """          """Return true if a shape layer is currently selected"""
640          dlg = wxColourDialog(self)          return isinstance(self.current_layer(), Layer)
641          color = None  
642          if dlg.ShowModal() == wxID_OK:      def has_selected_shapes(self):
643              data = dlg.GetColourData()          """Return true if a shape is currently selected"""
644              wxc = data.GetColour()          return self.canvas.HasSelectedShapes()
             color = Color(wxc.Red() / 255.0,  
                           wxc.Green() / 255.0,  
                           wxc.Blue() / 255.0)  
         dlg.Destroy()  
         return color  
645    
646      def LayerFillColor(self):      def HideLayer(self):
647          layer = self.current_layer()          layer = self.current_layer()
648          if layer is not None:          if layer is not None:
649              color = self.choose_color()              layer.SetVisible(False)
             if color is not None:  
                 layer.SetFill(color)  
650    
651      def LayerTransparentFill(self):      def ShowLayer(self):
652          layer = self.current_layer()          layer = self.current_layer()
653          if layer is not None:          if layer is not None:
654              layer.SetFill(None)              layer.SetVisible(True)
655    
656      def LayerOutlineColor(self):      def ToggleLayerVisibility(self):
657          layer = self.current_layer()          layer = self.current_layer()
658          if layer is not None:          layer.SetVisible(not layer.Visible())
             color = self.choose_color()  
             if color is not None:  
                 layer.SetStroke(color)  
659    
660      def LayerNoOutline(self):      def DuplicateLayer(self):
661            """Ceate a new layer above the selected layer with the same shapestore
662            """
663          layer = self.current_layer()          layer = self.current_layer()
664          if layer is not None:          if layer is not None and hasattr(layer, "ShapeStore"):
665              layer.SetStroke(None)              new_layer = Layer(_("Copy of `%s'") % layer.Title(),
666                                  layer.ShapeStore(),
667                                  projection = layer.GetProjection())
668                new_classification = copy.deepcopy(layer.GetClassification())
669                new_layer.SetClassificationColumn(
670                        layer.GetClassificationColumn())
671                new_layer.SetClassification(new_classification)
672                self.Map().AddLayer(new_layer)
673    
674      def HideLayer(self):      def CanDuplicateLayer(self):
675          layer = self.current_layer()          """Return whether the DuplicateLayer method can create a duplicate"""
         if layer is not None:  
             layer.SetVisible(0)  
           
     def ShowLayer(self):  
676          layer = self.current_layer()          layer = self.current_layer()
677          if layer is not None:          return layer is not None and hasattr(layer, "ShapeStore")
             layer.SetVisible(1)  
678    
679      def LayerShowTable(self):      def LayerShowTable(self):
680            """
681            Present a TableView Window for the current layer.
682            In case the window is already open, bring it to the front.
683            In case, there is no active layer, do nothing.
684            In case, the layer has no ShapeStore, do nothing.
685            """
686          layer = self.current_layer()          layer = self.current_layer()
687          if layer is not None:          if layer is not None:
688              table = layer.table              if not hasattr(layer, "ShapeStore"):
689                    return
690                table = layer.ShapeStore().Table()
691              name = "table_view" + str(id(table))              name = "table_view" + str(id(table))
692              dialog = self.get_open_dialog(name)              dialog = self.get_open_dialog(name)
693              if dialog is None:              if dialog is None:
694                  dialog = tableview.TableFrame(self, self.interactor, name,                  dialog = tableview.LayerTableFrame(self, name,
695                                                "Table: %s" % layer.Title(),                                           _("Layer Table: %s") % layer.Title(),
696                                                layer, table)                                           layer, table)
697                  self.add_dialog(name, dialog)                  self.add_dialog(name, dialog)
698                  dialog.Show(true)                  dialog.Show(True)
699              else:              else:
700                  # FIXME: bring dialog to front here                  dialog.Raise()
                 pass  
701    
702      def Projection(self):      def MapProjection(self):
703          map = self.canvas.Map()  
704          proj = map.projection          name = "map_projection"
705          if proj is None:          dialog = self.get_open_dialog(name)
706              proj4Dlg = proj4dialog.Proj4Dialog(NULL, None, map.BoundingBox())  
707          else:          if dialog is None:
708              proj4Dlg = proj4dialog.Proj4Dialog(NULL, map.projection.params,              map = self.canvas.Map()
709                                                 map.BoundingBox())              dialog = projdialog.ProjFrame(self, name,
710          if proj4Dlg.ShowModal() == wxID_OK:                       _("Map Projection: %s") % map.Title(), map)
711              params = proj4Dlg.GetParams()              self.add_dialog(name, dialog)
712              if params is not None:              dialog.Show()
713                  proj = Projection(params)          dialog.Raise()
714    
715        def LayerProjection(self):
716    
717            layer = self.current_layer()
718    
719            name = "layer_projection" + str(id(layer))
720            dialog = self.get_open_dialog(name)
721    
722            if dialog is None:
723                map = self.canvas.Map()
724                dialog = projdialog.ProjFrame(self, name,
725                         _("Layer Projection: %s") % layer.Title(), layer)
726                self.add_dialog(name, dialog)
727                dialog.Show()
728            dialog.Raise()
729    
730        def LayerEditProperties(self):
731    
732            #
733            # the menu option for this should only be available if there
734            # is a current layer, so we don't need to check if the
735            # current layer is None
736            #
737    
738            layer = self.current_layer()
739            self.OpenLayerProperties(layer)
740    
741        def OpenLayerProperties(self, layer, group = None):
742            """
743            Open or raise the properties dialog.
744    
745            This method opens or raises the properties dialog for the
746            currently selected layer if one is defined for this layer
747            type.
748            """
749            dialog_class = layer_properties_dialogs.get(layer)
750    
751            if dialog_class is not None:
752                name = "layer_properties" + str(id(layer))
753                self.OpenOrRaiseDialog(name, dialog_class, layer, group = group)
754    
755        def LayerJoinTable(self):
756            layer = self.canvas.SelectedLayer()
757            if layer is not None:
758                dlg = JoinDialog(self, _("Join Layer with Table"),
759                                 self.application.session,
760                                 layer = layer)
761                dlg.ShowModal()
762    
763        def LayerUnjoinTable(self):
764            layer = self.canvas.SelectedLayer()
765            if layer is not None:
766                orig_store = layer.ShapeStore().OrigShapeStore()
767                if orig_store:
768                    layer.SetShapeStore(orig_store)
769    
770        def ShowLegend(self):
771            if not self.LegendShown():
772                self.ToggleLegend()
773    
774        def ToggleLegend(self):
775            """Show the legend if it's not shown otherwise hide it again"""
776            name = "legend"
777            dialog = self.FindRegisteredDock(name)
778    
779            if dialog is None:
780                dialog = self.CreateDock(name, -1, _("Legend"), wxLAYOUT_LEFT)
781                legend.LegendPanel(dialog, None, self)
782                dialog.Dock()
783                dialog.GetPanel().SetMap(self.Map())
784                dialog.Show()
785            else:
786                dialog.Show(not dialog.IsShown())
787    
788        def LegendShown(self):
789            """Return true iff the legend is currently open"""
790            dialog = self.FindRegisteredDock("legend")
791            return dialog is not None and dialog.IsShown()
792    
793        def TableOpen(self):
794            dlg = wxFileDialog(self, _("Open Table"),
795                               self.application.Path("data"), "",
796                               _("DBF Files (*.dbf)") + "|*.dbf|" +
797                               #_("CSV Files (*.csv)") + "|*.csv|" +
798                               _("All Files (*.*)") + "|*.*",
799                               wxOPEN)
800            if dlg.ShowModal() == wxID_OK:
801                filename = dlg.GetPath()
802                dlg.Destroy()
803                try:
804                    table = self.application.session.OpenTableFile(filename)
805                except IOError:
806                    # the layer couldn't be opened
807                    self.RunMessageBox(_("Open Table"),
808                                       _("Can't open the file '%s'.") % filename)
809              else:              else:
810                  proj = None                  self.ShowTableView(table)
811              map.SetProjection(proj)                  self.application.SetPath("data",filename)
812          proj4Dlg.Destroy()  
813        def TableClose(self):
814            tables = self.application.session.UnreferencedTables()
815    
816            lst = [(t.Title(), t) for t in tables]
817            lst.sort()
818            titles = [i[0] for i in lst]
819            dlg = wxMultipleChoiceDialog(self, _("Pick the tables to close:"),
820                                         _("Close Table"), titles,
821                                         size = (400, 300),
822                                         style = wxDEFAULT_DIALOG_STYLE |
823                                                 wxRESIZE_BORDER)
824            if dlg.ShowModal() == wxID_OK:
825                for i in dlg.GetValue():
826                    self.application.session.RemoveTable(lst[i][1])
827    
828    
829        def TableShow(self):
830            """Offer a multi-selection dialog for tables to be displayed
831    
832            The windows for the selected tables are opened or brought to
833            the front.
834            """
835            tables = self.application.session.Tables()
836    
837            lst = [(t.Title(), t) for t in tables]
838            lst.sort()
839            titles = [i[0] for i in lst]
840            dlg = wxMultipleChoiceDialog(self, _("Pick the table to show:"),
841                                         _("Show Table"), titles,
842                                         size = (400,300),
843                                         style = wxDEFAULT_DIALOG_STYLE |
844                                                 wxRESIZE_BORDER)
845            if (dlg.ShowModal() == wxID_OK):
846                for i in dlg.GetValue():
847                    # XXX: if the table belongs to a layer, open a
848                    # LayerTableFrame instead of QueryTableFrame
849                    self.ShowTableView(lst[i][1])
850    
851        def TableJoin(self):
852            dlg = JoinDialog(self, _("Join Tables"), self.application.session)
853            dlg.ShowModal()
854    
855        def ShowTableView(self, table):
856            """Open a table view for the table and optionally"""
857            name = "table_view%d" % id(table)
858            dialog = self.get_open_dialog(name)
859            if dialog is None:
860                dialog = tableview.QueryTableFrame(self, name,
861                                                   _("Table: %s") % table.Title(),
862                                                   table)
863                self.add_dialog(name, dialog)
864                dialog.Show(True)
865            dialog.Raise()
866    
867        def TableRename(self):
868            """Let the user rename a table"""
869    
870            # First, let the user select a table
871            tables = self.application.session.Tables()
872            lst = [(t.Title(), t) for t in tables]
873            lst.sort()
874            titles = [i[0] for i in lst]
875            dlg = wxMultipleChoiceDialog(self, _("Pick the table to rename:"),
876                                         _("Rename Table"), titles,
877                                         size = (400,300),
878                                         style = wxDEFAULT_DIALOG_STYLE |
879                                                 wxRESIZE_BORDER)
880            if (dlg.ShowModal() == wxID_OK):
881                to_rename = [lst[i][1] for i in dlg.GetValue()]
882                dlg.Destroy()
883            else:
884                to_rename = []
885    
886            # Second, let the user rename the layers
887            for table in to_rename:
888                dlg = wxTextEntryDialog(self, _("Table Title:"), _("Rename Table"),
889                                        table.Title())
890                try:
891                    if dlg.ShowModal() == wxID_OK:
892                        title = dlg.GetValue()
893                        if title != "":
894                            table.SetTitle(title)
895    
896                            # Make sure the session is marked as modified.
897                            # FIXME: This should be handled automatically,
898                            # but that requires more changes to the tables
899                            # than I have time for currently.
900                            self.application.session.changed()
901                finally:
902                    dlg.Destroy()
903    
904    
905      def ZoomInTool(self):      def ZoomInTool(self):
906          self.canvas.ZoomInTool()          self.canvas.ZoomInTool()
# Line 480  class MainWindow(wxFrame): Line 921  class MainWindow(wxFrame):
921      def FullExtent(self):      def FullExtent(self):
922          self.canvas.FitMapToWindow()          self.canvas.FitMapToWindow()
923    
924        def FullLayerExtent(self):
925            self.canvas.FitLayerToWindow(self.current_layer())
926    
927        def FullSelectionExtent(self):
928            self.canvas.FitSelectedToWindow()
929    
930        def ExportMap(self):
931            self.canvas.Export()
932    
933      def PrintMap(self):      def PrintMap(self):
934          self.canvas.Print()          self.canvas.Print()
935    
936      def identify_view_on_demand(self, layer, shape):      def RenameMap(self):
937            dlg = wxTextEntryDialog(self, _("Map Title:"), _("Rename Map"),
938                                    self.Map().Title())
939            if dlg.ShowModal() == wxID_OK:
940                title = dlg.GetValue()
941                if title != "":
942                    self.Map().SetTitle(title)
943    
944            dlg.Destroy()
945    
946        def RenameLayer(self):
947            """Let the user rename the currently selected layer"""
948            layer = self.current_layer()
949            if layer is not None:
950                dlg = wxTextEntryDialog(self, _("Layer Title:"), _("Rename Layer"),
951                                        layer.Title())
952                try:
953                    if dlg.ShowModal() == wxID_OK:
954                        title = dlg.GetValue()
955                        if title != "":
956                            layer.SetTitle(title)
957                finally:
958                    dlg.Destroy()
959    
960        def identify_view_on_demand(self, layer, shapes):
961            """Subscribed to the canvas' SHAPES_SELECTED message
962    
963            If the current tool is the identify tool, at least one shape is
964            selected and the identify dialog is not shown, show the dialog.
965            """
966            # If the selection has become empty we don't need to do
967            # anything. Otherwise it could happen that the dialog was popped
968            # up when the selection became empty, e.g. when a new selection
969            # is opened while the identify tool is active and dialog had
970            # been closed
971            if not shapes:
972                return
973    
974          name = "identify_view"          name = "identify_view"
975          if self.canvas.CurrentTool() == "IdentifyTool":          if self.canvas.CurrentTool() == "IdentifyTool":
976              if not self.dialog_open(name):              if not self.dialog_open(name):
977                  dialog = identifyview.IdentifyView(self, self.interactor, name)                  dialog = identifyview.IdentifyView(self, name)
978                  self.add_dialog(name, dialog)                  self.add_dialog(name, dialog)
979                  dialog.Show(true)                  dialog.Show(True)
980              else:              else:
981                  # FIXME: bring dialog to front?                  # FIXME: bring dialog to front?
982                  pass                  pass
983    
984        def title_changed(self, map):
985            """Subscribed to the canvas' TITLE_CHANGED messages"""
986            self.update_title()
987    
988        def update_title(self):
989            """Update the window's title according to it's current state.
990    
991            In this default implementation the title is 'Thuban - ' followed
992            by the map's title or simply 'Thuban' if there is not map.
993            Derived classes should override this method to get different
994            titles.
995    
996            This method is called automatically by other methods when the
997            title may have to change. For the methods implemented in this
998            class this usually only means that a different map has been set
999            or the current map's title has changed.
1000            """
1001            map = self.Map()
1002            if map is not None:
1003                title = _("Thuban - %s") % (map.Title(),)
1004            else:
1005                title = _("Thuban")
1006            self.SetTitle(title)
1007    
1008    
1009  #  #
1010  # Define all the commands available in the main window  # Define all the commands available in the main window
1011  #  #
# Line 505  def call_method(context, methodname, *ar Line 1017  def call_method(context, methodname, *ar
1017      apply(getattr(context.mainwindow, methodname), args)      apply(getattr(context.mainwindow, methodname), args)
1018    
1019  def _method_command(name, title, method, helptext = "",  def _method_command(name, title, method, helptext = "",
1020                      icon = "", sensitive = None):                      icon = "", sensitive = None, checked = None):
1021      """Add a command implemented by a method of the mainwindow object"""      """Add a command implemented by a method of the mainwindow object"""
1022      registry.Add(Command(name, title, call_method, args=(method,),      registry.Add(Command(name, title, call_method, args=(method,),
1023                           helptext = helptext, icon = icon,                           helptext = helptext, icon = icon,
1024                           sensitive = sensitive))                           sensitive = sensitive, checked = checked))
1025    
1026  def make_check_current_tool(toolname):  def make_check_current_tool(toolname):
1027      """Return a function that tests if the currently active tool is toolname      """Return a function that tests if the currently active tool is toolname
# Line 523  def make_check_current_tool(toolname): Line 1035  def make_check_current_tool(toolname):
1035      return check_current_tool      return check_current_tool
1036    
1037  def _tool_command(name, title, method, toolname, helptext = "",  def _tool_command(name, title, method, toolname, helptext = "",
1038                    icon = ""):                    icon = "", sensitive = None):
1039      """Add a tool command"""      """Add a tool command"""
1040      registry.Add(Command(name, title, call_method, args=(method,),      registry.Add(ToolCommand(name, title, call_method, args=(method,),
1041                           helptext = helptext, icon = icon,                               helptext = helptext, icon = icon,
1042                           checked = make_check_current_tool(toolname)))                               checked = make_check_current_tool(toolname),
1043                                 sensitive = sensitive))
1044    
1045  def _has_selected_layer(context):  def _has_selected_layer(context):
1046      """Return true if a layer is selected in the context"""      """Return true if a layer is selected in the context"""
1047      return context.mainwindow.has_selected_layer()      return context.mainwindow.has_selected_layer()
1048    
1049    def _has_selected_layer_visible(context):
1050        """Return true if a layer is selected in the context which is
1051        visible."""
1052        if context.mainwindow.has_selected_layer():
1053            layer = context.mainwindow.current_layer()
1054            if layer.Visible(): return True
1055        return False
1056    
1057    def _has_selected_shape_layer(context):
1058        """Return true if a shape layer is selected in the context"""
1059        return context.mainwindow.has_selected_shape_layer()
1060    
1061    def _has_selected_shapes(context):
1062        """Return true if a layer is selected in the context"""
1063        return context.mainwindow.has_selected_shapes()
1064    
1065    def _can_remove_layer(context):
1066        return context.mainwindow.CanRemoveLayer()
1067    
1068  def _has_tree_window_shown(context):  def _has_tree_window_shown(context):
1069      """Return true if the tree window is shown"""      """Return true if the tree window is shown"""
1070      return context.mainwindow.get_open_dialog("session_tree") is None      return context.mainwindow.SessionTreeShown()
1071    
1072    def _has_visible_map(context):
1073        """Return true iff theres a visible map in the mainwindow.
1074    
1075        A visible map is a map with at least one visible layer."""
1076        map = context.mainwindow.Map()
1077        if map is not None:
1078            for layer in map.Layers():
1079                if layer.Visible():
1080                    return True
1081        return False
1082    
1083    def _has_legend_shown(context):
1084        """Return true if the legend window is shown"""
1085        return context.mainwindow.LegendShown()
1086    
1087    def _has_gdal_support(context):
1088        """Return True if the GDAL is available"""
1089        return Thuban.Model.resource.has_gdal_support()
1090    
1091    def _has_dbconnections(context):
1092        """Return whether the the session has database connections"""
1093        return context.session.HasDBConnections()
1094    
1095    def _has_postgis_support(context):
1096        return has_postgis_support()
1097    
1098    
1099  # File menu  # File menu
1100  _method_command("new_session", "&New Session", "NewSession")  _method_command("new_session", _("&New Session"), "NewSession",
1101  _method_command("open_session", "&Open Session", "OpenSession")                  helptext = _("Start a new session"))
1102  _method_command("save_session", "&Save Session", "SaveSession")  _method_command("open_session", _("&Open Session..."), "OpenSession",
1103  _method_command("save_session_as", "Save Session &As", "SaveSessionAs")                  helptext = _("Open a session file"))
1104  _method_command("show_session_tree", "Show Session &Tree", "ShowSessionTree",  _method_command("save_session", _("&Save Session"), "SaveSession",
1105                  sensitive = _has_tree_window_shown)                  helptext =_("Save this session to the file it was opened from"))
1106  _method_command("exit", "&Exit", "Exit")  _method_command("save_session_as", _("Save Session &As..."), "SaveSessionAs",
1107                    helptext = _("Save this session to a new file"))
1108    _method_command("toggle_session_tree", _("Session &Tree"), "ToggleSessionTree",
1109                    checked = _has_tree_window_shown,
1110                    helptext = _("Toggle on/off the session tree analysis window"))
1111    _method_command("toggle_legend", _("Legend"), "ToggleLegend",
1112                    checked = _has_legend_shown,
1113                    helptext = _("Toggle Legend on/off"))
1114    _method_command("database_management", _("&Database Connections..."),
1115                    "DatabaseManagement",
1116                    sensitive = _has_postgis_support)
1117    _method_command("exit", _("E&xit"), "Exit",
1118                    helptext = _("Finish working with Thuban"))
1119    
1120  # Help menu  # Help menu
1121  _method_command("help_about", "&About", "About")  _method_command("help_about", _("&About..."), "About",
1122                    helptext = _("Info about Thuban authors, version and modules"))
1123    
1124    
1125  # Map menu  # Map menu
1126  _method_command("map_projection", "Pro&jection", "Projection")  _method_command("map_projection", _("Pro&jection..."), "MapProjection",
1127                    helptext = _("Set or change the map projection"))
1128    
1129  _tool_command("map_zoom_in_tool", "&Zoom in", "ZoomInTool", "ZoomInTool",  _tool_command("map_zoom_in_tool", _("&Zoom in"), "ZoomInTool", "ZoomInTool",
1130                helptext = "Switch to map-mode 'zoom-in'", icon = "zoom_in")                helptext = _("Switch to map-mode 'zoom-in'"), icon = "zoom_in",
1131  _tool_command("map_zoom_out_tool", "Zoom &out", "ZoomOutTool", "ZoomOutTool",                sensitive = _has_visible_map)
1132                helptext = "Switch to map-mode 'zoom-out'", icon = "zoom_out")  _tool_command("map_zoom_out_tool", _("Zoom &out"), "ZoomOutTool", "ZoomOutTool",
1133  _tool_command("map_pan_tool", "&Pan", "PanTool", "PanTool",                helptext = _("Switch to map-mode 'zoom-out'"), icon = "zoom_out",
1134                helptext = "Switch to map-mode 'pan'", icon = "pan")                sensitive = _has_visible_map)
1135  _tool_command("map_identify_tool", "&Identify", "IdentifyTool", "IdentifyTool",  _tool_command("map_pan_tool", _("&Pan"), "PanTool", "PanTool",
1136                helptext = "Switch to map-mode 'identify'", icon = "identify")                helptext = _("Switch to map-mode 'pan'"), icon = "pan",
1137  _tool_command("map_label_tool", "&Label", "LabelTool", "LabelTool",                sensitive = _has_visible_map)
1138                helptext = "Add/Remove labels", icon = "label")  _tool_command("map_identify_tool", _("&Identify"), "IdentifyTool",
1139  _method_command("map_full_extent", "&Full extent", "FullExtent",                "IdentifyTool",
1140                 helptext = "Full Extent", icon = "fullextent")                helptext = _("Switch to map-mode 'identify'"), icon = "identify",
1141  _method_command("map_print", "Prin&t", "PrintMap", helptext = "Print the map")                sensitive = _has_visible_map)
1142    _tool_command("map_label_tool", _("&Label"), "LabelTool", "LabelTool",
1143                  helptext = _("Add/Remove labels"), icon = "label",
1144                  sensitive = _has_visible_map)
1145    _method_command("map_full_extent", _("&Full extent"), "FullExtent",
1146                   helptext = _("Zoom to the full map extent"), icon = "fullextent",
1147                  sensitive = _has_visible_map)
1148    _method_command("layer_full_extent", _("&Full layer extent"), "FullLayerExtent",
1149                    helptext = _("Zoom to the full layer extent"),
1150                    icon = "fulllayerextent", sensitive = _has_selected_layer)
1151    _method_command("selected_full_extent", _("&Full selection extent"),
1152                    "FullSelectionExtent",
1153                    helptext = _("Zoom to the full selection extent"),
1154                    icon = "fullselextent", sensitive = _has_selected_shapes)
1155    _method_command("map_export", _("E&xport"), "ExportMap",
1156                    helptext = _("Export the map to file"))
1157    _method_command("map_print", _("Prin&t"), "PrintMap",
1158                    helptext = _("Print the map"))
1159    _method_command("map_rename", _("&Rename..."), "RenameMap",
1160                    helptext = _("Rename the map"))
1161    _method_command("layer_add", _("&Add Layer..."), "AddLayer",
1162                    helptext = _("Add a new layer to the map"))
1163    _method_command("rasterlayer_add", _("&Add Image Layer..."), "AddRasterLayer",
1164                    helptext = _("Add a new image layer to the map"),
1165                    sensitive = _has_gdal_support)
1166    _method_command("layer_add_db", _("Add &Database Layer..."), "AddDBLayer",
1167                    helptext = _("Add a new database layer to active map"),
1168                    sensitive = _has_dbconnections)
1169    _method_command("layer_remove", _("&Remove Layer"), "RemoveLayer",
1170                    helptext = _("Remove selected layer"),
1171                    sensitive = _can_remove_layer)
1172    
1173  # Layer menu  # Layer menu
1174  _method_command("layer_add", "&Add Layer", "AddLayer",  _method_command("layer_projection", _("Pro&jection..."), "LayerProjection",
1175                  helptext = "Add a new layer to active map")                  sensitive = _has_selected_layer,
1176  _method_command("layer_remove", "&Remove Layer", "RemoveLayer",                  helptext = _("Specify projection for selected layer"))
1177                  helptext = "Remove selected layer(s)",  _method_command("layer_duplicate", _("&Duplicate"), "DuplicateLayer",
1178                  sensitive = _has_selected_layer)                  helptext = _("Duplicate selected layer"),
1179  _method_command("layer_fill_color", "&Fill Color", "LayerFillColor",            sensitive = lambda context: context.mainwindow.CanDuplicateLayer())
1180                  helptext = "Set the fill color of selected layer(s)",  _method_command("layer_rename", _("Re&name ..."), "RenameLayer",
1181                  sensitive = _has_selected_layer)                  helptext = _("Rename selected layer"),
 _method_command("layer_transparent_fill", "&Transparent Fill",  
                 "LayerTransparentFill",  
                 helptext = "Do not fill the selected layer(s)",  
1182                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1183  _method_command("layer_outline_color", "&Outline Color", "LayerOutlineColor",  _method_command("layer_raise", _("&Raise"), "RaiseLayer",
1184                  helptext = "Set the outline color of selected layer(s)",                  helptext = _("Raise selected layer"),
1185                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1186  _method_command("layer_no_outline", "&No Outline", "LayerNoOutline",  _method_command("layer_lower", _("&Lower"), "LowerLayer",
1187                  helptext = "Do not draw the outline of the selected layer(s)",                  helptext = _("Lower selected layer"),
1188                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1189  _method_command("layer_raise", "&Raise", "RaiseLayer",  _method_command("layer_show", _("&Show"), "ShowLayer",
1190                  helptext = "Raise selected layer(s)",                  helptext = _("Make selected layer visible"),
1191                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1192  _method_command("layer_lower", "&Lower", "LowerLayer",  _method_command("layer_hide", _("&Hide"), "HideLayer",
1193                  helptext = "Lower selected layer(s)",                  helptext = _("Make selected layer unvisible"),
1194                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1195  _method_command("layer_show", "&Show", "ShowLayer",  _method_command("layer_show_table", _("Show Ta&ble"), "LayerShowTable",
1196                  helptext = "Make selected layer(s) visible",                  helptext = _("Show the selected layer's table"),
1197                    sensitive = _has_selected_shape_layer)
1198    _method_command("layer_properties", _("&Properties..."), "LayerEditProperties",
1199                    sensitive = _has_selected_layer,
1200                    helptext = _("Edit the properties of the selected layer"))
1201    _method_command("layer_jointable", _("&Join Table..."), "LayerJoinTable",
1202                    sensitive = _has_selected_shape_layer,
1203                    helptext = _("Join and attach a table to the selected layer"))
1204    
1205    # further layer methods:
1206    _method_command("layer_to_top", _("&Top"), "LayerToTop",
1207                    helptext = _("Put selected layer to the top"),
1208                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1209  _method_command("layer_hide", "&Hide", "HideLayer",  _method_command("layer_to_bottom", _("&Bottom"), "LayerToBottom",
1210                  helptext = "Make selected layer(s) unvisible",                  helptext = _("Put selected layer to the bottom"),
1211                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1212  _method_command("layer_show_table", "Show Ta&ble", "LayerShowTable",  _method_command("layer_visibility", _("&Visible"), "ToggleLayerVisibility",
1213                  helptext = "Show the selected layer's table",                  checked = _has_selected_layer_visible,
1214                    helptext = _("Toggle visibility of selected layer"),
1215                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1216    
1217    def _can_unjoin(context):
1218        """Return whether the Layer/Unjoin command can be executed.
1219    
1220  # the menu structure      This is the case if a layer is selected and that layer has a
1221  main_menu = Menu("<main>", "<main>",      shapestore that has an original shapestore.
1222                   [Menu("file", "&File",      """
1223                         ["new_session", "open_session", None,      layer = context.mainwindow.SelectedLayer()
1224                          "save_session", "save_session_as", None,      if layer is None:
1225                          "show_session_tree", None,          return 0
1226                          "exit"]),      getstore = getattr(layer, "ShapeStore", None)
1227                    Menu("map", "&Map",      if getstore is not None:
1228                         ["layer_add", "layer_remove",          return getstore().OrigShapeStore() is not None
1229        else:
1230            return 0
1231    _method_command("layer_unjointable", _("&Unjoin Table..."), "LayerUnjoinTable",
1232                    sensitive = _can_unjoin,
1233                    helptext = _("Undo the last join operation"))
1234    
1235    
1236    def _has_tables(context):
1237        return bool(context.session.Tables())
1238    
1239    # Table menu
1240    _method_command("table_open", _("&Open..."), "TableOpen",
1241                    helptext = _("Open a DBF-table from a file"))
1242    _method_command("table_close", _("&Close..."), "TableClose",
1243           sensitive = lambda context: bool(context.session.UnreferencedTables()),
1244                    helptext = _("Close one or more tables from a list"))
1245    _method_command("table_rename", _("&Rename..."), "TableRename",
1246                    sensitive = _has_tables,
1247                    helptext = _("Rename one or more tables"))
1248    _method_command("table_show", _("&Show..."), "TableShow",
1249                    sensitive = _has_tables,
1250                    helptext = _("Show one or more tables in a dialog"))
1251    _method_command("table_join", _("&Join..."), "TableJoin",
1252                    sensitive = _has_tables,
1253                    helptext = _("Join two tables creating a new one"))
1254    
1255    #  Export only under Windows ...
1256    map_menu = ["layer_add", "layer_add_db", "rasterlayer_add", "layer_remove",
1257                          None,                          None,
1258                            "map_rename",
1259                          "map_projection",                          "map_projection",
1260                          None,                          None,
1261                          "map_zoom_in_tool", "map_zoom_out_tool",                          "map_zoom_in_tool", "map_zoom_out_tool",
1262                          "map_pan_tool", "map_identify_tool", "map_label_tool",                          "map_pan_tool",
                         None,  
1263                          "map_full_extent",                          "map_full_extent",
1264                            "layer_full_extent",
1265                            "selected_full_extent",
1266                            None,
1267                            "map_identify_tool", "map_label_tool",
1268                          None,                          None,
1269                          "map_print"]),                          "toggle_legend",
1270                    Menu("layer", "&Layer",                          None]
1271                         ["layer_fill_color", "layer_transparent_fill",  if wxPlatform == '__WXMSW__':
1272                          "layer_outline_color", "layer_no_outline",      map_menu.append("map_export")
1273    map_menu.append("map_print")
1274    
1275    # the menu structure
1276    main_menu = Menu("<main>", "<main>",
1277                     [Menu("file", _("&File"),
1278                           ["new_session", "open_session", None,
1279                            "save_session", "save_session_as", None,
1280                            "database_management", None,
1281                            "toggle_session_tree", None,
1282                            "exit"]),
1283                      Menu("map", _("&Map"), map_menu),
1284                      Menu("layer", _("&Layer"),
1285                           ["layer_rename", "layer_duplicate",
1286                          None,                          None,
1287                          "layer_raise", "layer_lower",                          "layer_raise", "layer_lower",
1288                          None,                          None,
1289                          "layer_show", "layer_hide",                          "layer_show", "layer_hide",
1290                          None,                          None,
1291                          "layer_show_table"]),                          "layer_projection",
1292                    Menu("help", "&Help",                          None,
1293                            "layer_show_table",
1294                            "layer_jointable",
1295                            "layer_unjointable",
1296                            None,
1297                            "layer_properties"]),
1298                      Menu("table", _("&Table"),
1299                           ["table_open", "table_close", "table_rename",
1300                           None,
1301                           "table_show",
1302                           None,
1303                           "table_join"]),
1304                      Menu("help", _("&Help"),
1305                         ["help_about"])])                         ["help_about"])])
1306    
1307  # the main toolbar  # the main toolbar
1308    
1309  main_toolbar = Menu("<toolbar>", "<toolbar>",  main_toolbar = Menu("<toolbar>", "<toolbar>",
1310                      ["map_zoom_in_tool", "map_zoom_out_tool", "map_pan_tool",                      ["map_zoom_in_tool", "map_zoom_out_tool", "map_pan_tool",
1311                       "map_identify_tool", "map_label_tool", "map_full_extent"])                       "map_full_extent",
1312                         "layer_full_extent",
1313                         "selected_full_extent",
1314                         None,
1315                         "map_identify_tool", "map_label_tool"])
1316    
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