/[thuban]/branches/WIP-pyshapelib-bramz/Thuban/UI/mainwindow.py
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revision 312 by bh, Wed Sep 11 13:59:37 2002 UTC revision 1056 by frank, Tue May 27 11:29:46 2003 UTC
# Line 1  Line 1 
1  # Copyright (C) 2001, 2002 by Intevation GmbH  # Copyright (C) 2001, 2002, 2003 by Intevation GmbH
2  # Authors:  # Authors:
3  # Jan-Oliver Wagner <[email protected]>  # Jan-Oliver Wagner <[email protected]>
4  # Bernhard Herzog <[email protected]>  # Bernhard Herzog <[email protected]>
5    # Frank Koormann <[email protected]>
6  #  #
7  # This program is free software under the GPL (>=v2)  # This program is free software under the GPL (>=v2)
8  # Read the file COPYING coming with Thuban for details.  # Read the file COPYING coming with Thuban for details.
# Line 12  The main window Line 13  The main window
13    
14  __version__ = "$Revision$"  __version__ = "$Revision$"
15    
16    __ThubanVersion__ = "0.2" #"$THUBAN_0_2$"
17    #__BuildDate__ = "$Date$"
18    
19  import os  import os
20    
21  from wxPython.wx import *  from wxPython.wx import *
22    from wxPython.wx import __version__ as wxPython_version
23    
24    from wxPython.lib.dialogs import wxMultipleChoiceDialog
25    
26  import Thuban  import Thuban
27    import Thuban.version
28    
29    from Thuban import _
30  from Thuban.Model.session import create_empty_session  from Thuban.Model.session import create_empty_session
31  from Thuban.Model.layer import Layer  from Thuban.Model.layer import Layer, RasterLayer
32  from Thuban.Model.color import Color  from Thuban.Model.color import Color
33  from Thuban.Model.proj import Projection  from Thuban.Model.proj import Projection
34    
# Line 26  import view Line 36  import view
36  import tree  import tree
37  import proj4dialog  import proj4dialog
38  import tableview, identifyview  import tableview, identifyview
39    from Thuban.UI.classifier import Classifier
40    import legend
41  from menu import Menu  from menu import Menu
42    
43  from context import Context  from context import Context
44  from command import registry, Command  from command import registry, Command, ToolCommand
45  from messages import SELECTED_SHAPE, VIEW_POSITION  from messages import LAYER_SELECTED, SHAPES_SELECTED, VIEW_POSITION
46    
47    from Thuban.UI.dock import DockFrame
48    from Thuban.UI.join import JoinDialog
49    
50    import resource
51    
52    import projdialog
53    
 # the directory where the toolbar icons are stored  
 bitmapdir = os.path.join(Thuban.__path__[0], os.pardir, "Resources", "Bitmaps")  
 bitmapext = ".xpm"  
54    
55    
56  class MainWindow(wxFrame):  class MainWindow(DockFrame):
57    
58        # Some messages that can be subscribed/unsubscribed directly through
59        # the MapCanvas come in fact from other objects. This is a map to
60        # map those messages to the names of the instance variables they
61        # actually come from. This delegation is implemented in the
62        # Subscribe and unsubscribed methods
63        delegated_messages = {LAYER_SELECTED: "canvas",
64                              SHAPES_SELECTED: "canvas"}
65    
66        # Methods delegated to some instance variables. The delegation is
67        # implemented in the __getattr__ method.
68        delegated_methods = {"SelectLayer": "canvas",
69                             "SelectShapes": "canvas",
70                             "SelectedShapes": "canvas",
71                             }
72    
73      def __init__(self, parent, ID, title, application, interactor,      def __init__(self, parent, ID, title, application, interactor,
74                   initial_message = None, size = wxSize(-1, -1)):                   initial_message = None, size = wxSize(-1, -1)):
75          wxFrame.__init__(self, parent, ID, title, wxDefaultPosition, size)          DockFrame.__init__(self, parent, ID, title, wxDefaultPosition, size)
76            #wxFrame.__init__(self, parent, ID, title, wxDefaultPosition, size)
77    
78          self.application = application          self.application = application
         self.interactor = interactor  
79    
80          self.CreateStatusBar()          self.CreateStatusBar()
81          if initial_message:          if initial_message:
# Line 63  class MainWindow(wxFrame): Line 93  class MainWindow(wxFrame):
93          # call Realize to make sure that the tools appear.          # call Realize to make sure that the tools appear.
94          toolbar.Realize()          toolbar.Realize()
95    
96    
97          # Create the map canvas          # Create the map canvas
98          canvas = view.MapCanvas(self, -1, interactor)          canvas = view.MapCanvas(self, -1)
99          canvas.Subscribe(VIEW_POSITION, self.view_position_changed)          canvas.Subscribe(VIEW_POSITION, self.view_position_changed)
100            canvas.Subscribe(SHAPES_SELECTED, self.identify_view_on_demand)
101          self.canvas = canvas          self.canvas = canvas
102    
103          self.init_dialogs()          self.SetMainWindow(self.canvas)
104    
105          interactor.Subscribe(SELECTED_SHAPE, self.identify_view_on_demand)          self.SetAutoLayout(True)
106    
107            self.init_dialogs()
108    
109          EVT_CLOSE(self, self.OnClose)          EVT_CLOSE(self, self.OnClose)
110    
111        def Subscribe(self, channel, *args):
112            """Subscribe a function to a message channel.
113    
114            If channel is one of the delegated messages call the appropriate
115            object's Subscribe method. Otherwise do nothing.
116            """
117            if channel in self.delegated_messages:
118                object = getattr(self, self.delegated_messages[channel])
119                object.Subscribe(channel, *args)
120            else:
121                print "Trying to subscribe to unsupported channel %s" % channel
122    
123        def Unsubscribe(self, channel, *args):
124            """Unsubscribe a function from a message channel.
125    
126            If channel is one of the delegated messages call the appropriate
127            object's Unsubscribe method. Otherwise do nothing.
128            """
129            if channel in self.delegated_messages:
130                object = getattr(self, self.delegated_messages[channel])
131                object.Unsubscribe(channel, *args)
132    
133        def __getattr__(self, attr):
134            """If attr is one of the delegated methods return that method
135    
136            Otherwise raise AttributeError.
137            """
138            if attr in self.delegated_methods:
139                return getattr(getattr(self, self.delegated_methods[attr]), attr)
140            raise AttributeError(attr)
141    
142      def init_ids(self):      def init_ids(self):
143          """Initialize the ids"""          """Initialize the ids"""
144          self.current_id = 6000          self.current_id = 6000
# Line 112  class MainWindow(wxFrame): Line 177  class MainWindow(wxFrame):
177          return menu_bar          return menu_bar
178    
179      def build_menu(self, menudesc):      def build_menu(self, menudesc):
180          """Build and return a wxMenu from a menudescription"""          """Return a wxMenu built from the menu description menudesc"""
181          wxmenu = wxMenu()          wxmenu = wxMenu()
182          last = None          last = None
183          for item in menudesc.items:          for item in menudesc.items:
             # here the items must all be Menu instances themselves  
184              if item is None:              if item is None:
185                  # a separator. Only add one if the last item was not a                  # a separator. Only add one if the last item was not a
186                  # separator                  # separator
# Line 169  class MainWindow(wxFrame): Line 233  class MainWindow(wxFrame):
233                              command.IsCheckCommand())                              command.IsCheckCommand())
234                  self.bind_command_events(command, ID)                  self.bind_command_events(command, ID)
235              else:              else:
236                  print "Unknown command %s" % name                  print _("Unknown command %s") % name
237    
238      def add_toolbar_command(self, toolbar, name):      def add_toolbar_command(self, toolbar, name):
239          """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 248  class MainWindow(wxFrame):
248              command = registry.Command(name)              command = registry.Command(name)
249              if command is not None:              if command is not None:
250                  ID = self.get_id(name)                  ID = self.get_id(name)
251                  filename = os.path.join(bitmapdir, command.Icon()) + bitmapext                  bitmap = resource.GetBitmapResource(command.Icon(),
252                  bitmap = wxBitmap(filename, wxBITMAP_TYPE_XPM)                                                      wxBITMAP_TYPE_XPM)
253                  toolbar.AddTool(ID, bitmap,                  toolbar.AddTool(ID, bitmap,
254                                  shortHelpString = command.HelpText(),                                  shortHelpString = command.HelpText(),
255                                  isToggle = command.IsCheckCommand())                                  isToggle = command.IsCheckCommand())
256                  self.bind_command_events(command, ID)                  self.bind_command_events(command, ID)
257              else:              else:
258                  print "Unknown command %s" % name                  print _("Unknown command %s") % name
259    
260      def Context(self):      def Context(self):
261          """Return the context object for a command invoked from this window          """Return the context object for a command invoked from this window
# Line 204  class MainWindow(wxFrame): Line 268  class MainWindow(wxFrame):
268              command = registry.Command(name)              command = registry.Command(name)
269              command.Execute(self.Context())              command.Execute(self.Context())
270          else:          else:
271              print "Unknown command ID %d" % event.GetId()              print _("Unknown command ID %d") % event.GetId()
272    
273      def update_command_ui(self, event):      def update_command_ui(self, event):
274          #print "update_command_ui", self.id_to_name[event.GetId()]          #print "update_command_ui", self.id_to_name[event.GetId()]
275          context = self.Context()          context = self.Context()
276          command = registry.Command(self.id_to_name[event.GetId()])          command = registry.Command(self.id_to_name[event.GetId()])
277          if command is not None:          if command is not None:
278              event.Enable(command.Sensitive(context))              sensitive = command.Sensitive(context)
279                event.Enable(sensitive)
280                if command.IsTool() and not sensitive and command.Checked(context):
281                    # When a checked tool command is disabled deselect all
282                    # tools. Otherwise the tool would remain active but it
283                    # might lead to errors if the tools stays active. This
284                    # problem occurred in GREAT-ER and this fixes it, but
285                    # it's not clear to me whether this is really the best
286                    # way to do it (BH, 20021206).
287                    self.canvas.SelectTool(None)
288              event.SetText(command.DynText(context))              event.SetText(command.DynText(context))
289              if command.IsCheckCommand():              if command.IsCheckCommand():
290                  event.Check(command.Checked(context))                      event.Check(command.Checked(context))
291    
292      def RunMessageBox(self, title, text, flags = wxOK | wxICON_INFORMATION):      def RunMessageBox(self, title, text, flags = wxOK | wxICON_INFORMATION):
293          """Run a modal message box with the given text, title and flags          """Run a modal message box with the given text, title and flags
294          and return the result"""          and return the result"""
295          dlg = wxMessageDialog(self, text, title, flags)          dlg = wxMessageDialog(self, text, title, flags)
296            dlg.CenterOnParent()
297          result = dlg.ShowModal()          result = dlg.ShowModal()
298          dlg.Destroy()          dlg.Destroy()
299          return result          return result
# Line 233  class MainWindow(wxFrame): Line 307  class MainWindow(wxFrame):
307    
308      def add_dialog(self, name, dialog):      def add_dialog(self, name, dialog):
309          if self.dialogs.has_key(name):          if self.dialogs.has_key(name):
310              raise RuntimeError("The Dialog named %s is already open" % name)              raise RuntimeError(_("The Dialog named %s is already open") % name)
311          self.dialogs[name] = dialog          self.dialogs[name] = dialog
312    
313      def dialog_open(self, name):      def dialog_open(self, name):
# Line 251  class MainWindow(wxFrame): Line 325  class MainWindow(wxFrame):
325              text = "(%10.10g, %10.10g)" % pos              text = "(%10.10g, %10.10g)" % pos
326          else:          else:
327              text = ""              text = ""
328            self.set_position_text(text)
329    
330        def set_position_text(self, text):
331            """Set the statusbar text showing the current position.
332    
333            By default the text is shown in field 0 of the status bar.
334            Override this method in derived classes to put it into a
335            different field of the statusbar.
336            """
337          self.SetStatusText(text)          self.SetStatusText(text)
338    
339      def save_modified_session(self, can_veto = 1):      def save_modified_session(self, can_veto = 1):
# Line 266  class MainWindow(wxFrame): Line 349  class MainWindow(wxFrame):
349              flags = wxYES_NO | wxICON_QUESTION              flags = wxYES_NO | wxICON_QUESTION
350              if can_veto:              if can_veto:
351                  flags = flags | wxCANCEL                  flags = flags | wxCANCEL
352              result = self.RunMessageBox("Exit",              result = self.RunMessageBox(_("Exit"),
353                                          ("The session has been modified."                                          _("The session has been modified."
354                                           " Do you want to save it?"),                                           " Do you want to save it?"),
355                                          flags)                                          flags)
356              if result == wxID_YES:              if result == wxID_YES:
# Line 276  class MainWindow(wxFrame): Line 359  class MainWindow(wxFrame):
359              result = wxID_NO              result = wxID_NO
360          return result          return result
361    
362        def prepare_new_session(self):
363            for d in self.dialogs.values():
364                if not isinstance(d, tree.SessionTreeView):
365                    d.Close()
366    
367      def NewSession(self):      def NewSession(self):
368          self.save_modified_session()          if self.save_modified_session() != wxID_CANCEL:
369          self.application.SetSession(create_empty_session())              self.prepare_new_session()
370                self.application.SetSession(create_empty_session())
371    
372      def OpenSession(self):      def OpenSession(self):
373          self.save_modified_session()          if self.save_modified_session() != wxID_CANCEL:
374          dlg = wxFileDialog(self, "Select a session file", ".", "",              dlg = wxFileDialog(self, _("Open Session"), ".", "",
375                             "*.thuban", wxOPEN)                                 "Thuban Session File (*.thuban)|*.thuban",
376          if dlg.ShowModal() == wxID_OK:                                 wxOPEN)
377              self.application.OpenSession(dlg.GetPath())              if dlg.ShowModal() == wxID_OK:
378          dlg.Destroy()                  self.prepare_new_session()
379                    self.application.OpenSession(dlg.GetPath())
380                dlg.Destroy()
381    
382      def SaveSession(self):      def SaveSession(self):
383          if self.application.session.filename == None:          if self.application.session.filename == None:
384              self.SaveSessionAs()              self.SaveSessionAs()
385          self.application.SaveSession()          else:
386                self.application.SaveSession()
387    
388      def SaveSessionAs(self):      def SaveSessionAs(self):
389          dlg = wxFileDialog(self, "Enter a filename for session", ".", "",          dlg = wxFileDialog(self, _("Save Session As"), ".", "",
390                             "*.thuban", wxOPEN)                             "Thuban Session File (*.thuban)|*.thuban",
391                               wxSAVE|wxOVERWRITE_PROMPT)
392          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wxID_OK:
393              self.application.session.SetFilename(dlg.GetPath())              self.application.session.SetFilename(dlg.GetPath())
394              self.application.SaveSession()              self.application.SaveSession()
395          dlg.Destroy()          dlg.Destroy()
396    
397      def Exit(self):      def Exit(self):
398          self.Close(false)          self.Close(False)
399    
400      def OnClose(self, event):      def OnClose(self, event):
401          result = self.save_modified_session(can_veto = event.CanVeto())          result = self.save_modified_session(can_veto = event.CanVeto())
# Line 313  class MainWindow(wxFrame): Line 406  class MainWindow(wxFrame):
406              # wx's destroy event, but that isn't implemented for wxGTK              # wx's destroy event, but that isn't implemented for wxGTK
407              # yet.              # yet.
408              self.canvas.Unsubscribe(VIEW_POSITION, self.view_position_changed)              self.canvas.Unsubscribe(VIEW_POSITION, self.view_position_changed)
409                DockFrame.OnClose(self, event)
410                for dlg in self.dialogs.values():
411                    dlg.Destroy()
412                self.canvas.Destroy()
413              self.Destroy()              self.Destroy()
414    
415      def SetMap(self, map):      def SetMap(self, map):
416          self.canvas.SetMap(map)          self.canvas.SetMap(map)
417            self.__SetTitle(map.Title())
418    
419            dialog = self.FindRegisteredDock("legend")
420            if dialog is not None:
421                dialog.GetPanel().SetMap(self.Map())
422    
423      def Map(self):      def Map(self):
424          """Return the map displayed by this mainwindow"""          """Return the map displayed by this mainwindow"""
425    
426          return self.canvas.Map()          return self.canvas.Map()
427    
428      def ShowSessionTree(self):      def ToggleSessionTree(self):
429            """If the session tree is shown close it otherwise create a new tree"""
430          name = "session_tree"          name = "session_tree"
431          dialog = self.get_open_dialog(name)          dialog = self.get_open_dialog(name)
432          if dialog is None:          if dialog is None:
433              dialog = tree.SessionTreeView(self, self.application, name)              dialog = tree.SessionTreeView(self, self.application, name)
434              self.add_dialog(name, dialog)              self.add_dialog(name, dialog)
435              dialog.Show(true)              dialog.Show(True)
436          else:          else:
437              # FIXME: bring dialog to front here              dialog.Close()
438              pass  
439        def SessionTreeShown(self):
440            """Return true iff the session tree is currently shown"""
441            return self.get_open_dialog("session_tree") is not None
442    
443      def About(self):      def About(self):
444          self.RunMessageBox("About",          self.RunMessageBox(_("About"),
445                             ("Thuban is a program for\n"                             _("Thuban %s\n"
446                                #"Build Date: %s\n"
447                                "using:\n"
448                                "  %s\n"
449                                "  %s\n\n"
450                                "Thuban is a program for\n"
451                              "exploring geographic data.\n"                              "exploring geographic data.\n"
452                              "Copyright (C) 2001 Intevation GmbH.\n"                              "Copyright (C) 2001-2003 Intevation GmbH.\n"
453                              "Thuban is licensed under the GPL"),                              "Thuban is licensed under the GNU GPL"
454                                % (Thuban.version.longversion,
455                                   "wxPython %s" % wxPython_version,
456                                   "Python %d.%d.%d" % sys.version_info[:3]
457                                  )),
458    #                           % __ThubanVersion__), #__BuildDate__)),
459                             wxOK | wxICON_INFORMATION)                             wxOK | wxICON_INFORMATION)
460    
461      def AddLayer(self):      def AddLayer(self):
462          dlg = wxFileDialog(self, "Select a data file", ".", "", "*.*",          dlg = wxFileDialog(self, _("Select a data file"), ".", "", "*.*",
463                             wxOPEN)                             wxOPEN)
464          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wxID_OK:
465              filename = dlg.GetPath()              filename = dlg.GetPath()
466              title = os.path.splitext(os.path.basename(filename))[0]              title = os.path.splitext(os.path.basename(filename))[0]
             layer = Layer(title, filename)  
467              map = self.canvas.Map()              map = self.canvas.Map()
468              has_layers = map.HasLayers()              has_layers = map.HasLayers()
469              try:              try:
470                    store = self.application.Session().OpenShapefile(filename)
471                except IOError:
472                    # the layer couldn't be opened
473                    self.RunMessageBox(_("Add Layer"),
474                                       _("Can't open the file '%s'.") % filename)
475                else:
476                    layer = Layer(title, store)
477                  map.AddLayer(layer)                  map.AddLayer(layer)
478                    if not has_layers:
479                        # if we're adding a layer to an empty map, fit the
480                        # new map to the window
481                        self.canvas.FitMapToWindow()
482            dlg.Destroy()
483    
484        def AddRasterLayer(self):
485            dlg = wxFileDialog(self, _("Select an image file"), ".", "", "*.*",
486                               wxOPEN)
487            if dlg.ShowModal() == wxID_OK:
488                filename = dlg.GetPath()
489                title = os.path.splitext(os.path.basename(filename))[0]
490                map = self.canvas.Map()
491                has_layers = map.HasLayers()
492                try:
493                    layer = RasterLayer(title, filename)
494              except IOError:              except IOError:
495                  # the layer couldn't be opened                  # the layer couldn't be opened
496                  self.RunMessageBox("Add Layer",                  self.RunMessageBox(_("Add Image Layer"),
497                                     "Can't open the file '%s'." % filename)                                     _("Can't open the file '%s'.") % filename)
498              else:              else:
499                    map.AddLayer(layer)
500                  if not has_layers:                  if not has_layers:
501                      # if we're adding a layer to an empty map, for the                      # if we're adding a layer to an empty map, fit the
502                      # new map to the window                      # new map to the window
503                      self.canvas.FitMapToWindow()                      self.canvas.FitMapToWindow()
504          dlg.Destroy()          dlg.Destroy()
# Line 371  class MainWindow(wxFrame): Line 511  class MainWindow(wxFrame):
511      def CanRemoveLayer(self):      def CanRemoveLayer(self):
512          """Return true if the currently selected layer can be deleted.          """Return true if the currently selected layer can be deleted.
513    
514          If no layer is selected return false.          If no layer is selected return False.
515    
516          The return value of this method determines whether the remove          The return value of this method determines whether the remove
517          layer command is sensitive in menu.          layer command is sensitive in menu.
# Line 379  class MainWindow(wxFrame): Line 519  class MainWindow(wxFrame):
519          layer = self.current_layer()          layer = self.current_layer()
520          if layer is not None:          if layer is not None:
521              return self.canvas.Map().CanRemoveLayer(layer)              return self.canvas.Map().CanRemoveLayer(layer)
522          return 0          return False
523    
524      def RaiseLayer(self):      def RaiseLayer(self):
525          layer = self.current_layer()          layer = self.current_layer()
# Line 396  class MainWindow(wxFrame): Line 536  class MainWindow(wxFrame):
536    
537          If no layer is selected, return None          If no layer is selected, return None
538          """          """
539          return self.interactor.SelectedLayer()          return self.canvas.SelectedLayer()
540    
541      def has_selected_layer(self):      def has_selected_layer(self):
542          """Return true if a layer is currently selected"""          """Return true if a layer is currently selected"""
543          return self.interactor.HasSelectedLayer()          return self.canvas.HasSelectedLayer()
544    
545      def choose_color(self):      def has_selected_shapes(self):
546          """Run the color selection dialog and return the selected color.          """Return true if a shape is currently selected"""
547            return self.canvas.HasSelectedShapes()
         If the user cancels, return None.  
         """  
         dlg = wxColourDialog(self)  
         color = None  
         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  
   
     def LayerFillColor(self):  
         layer = self.current_layer()  
         if layer is not None:  
             color = self.choose_color()  
             if color is not None:  
                 layer.SetFill(color)  
   
     def LayerTransparentFill(self):  
         layer = self.current_layer()  
         if layer is not None:  
             layer.SetFill(None)  
   
     def LayerOutlineColor(self):  
         layer = self.current_layer()  
         if layer is not None:  
             color = self.choose_color()  
             if color is not None:  
                 layer.SetStroke(color)  
   
     def LayerNoOutline(self):  
         layer = self.current_layer()  
         if layer is not None:  
             layer.SetStroke(None)  
548    
549      def HideLayer(self):      def HideLayer(self):
550          layer = self.current_layer()          layer = self.current_layer()
# Line 459  class MainWindow(wxFrame): Line 563  class MainWindow(wxFrame):
563              name = "table_view" + str(id(table))              name = "table_view" + str(id(table))
564              dialog = self.get_open_dialog(name)              dialog = self.get_open_dialog(name)
565              if dialog is None:              if dialog is None:
566                  dialog = tableview.LayerTableFrame(self, self.interactor, name,                  dialog = tableview.LayerTableFrame(self, name,
567                                                     "Table: %s" % layer.Title(),                                           _("Layer Table: %s") % layer.Title(),
568                                                     layer, table)                                           layer, table)
569                  self.add_dialog(name, dialog)                  self.add_dialog(name, dialog)
570                  dialog.Show(true)                  dialog.Show(True)
571              else:              else:
572                  # FIXME: bring dialog to front here                  # FIXME: bring dialog to front here
573                  pass                  pass
574    
575      def Projection(self):      def MapProjection(self):
576          map = self.canvas.Map()  
577          proj = map.projection          name = "map_projection"
578          if proj is None:          dialog = self.get_open_dialog(name)
579              proj4Dlg = proj4dialog.Proj4Dialog(NULL, None, map.BoundingBox())  
580            if dialog is None:
581                map = self.canvas.Map()
582                dialog = projdialog.ProjFrame(self, name,
583                         _("Map Projection: %s") % map.Title(), map)
584                self.add_dialog(name, dialog)
585                dialog.Show()
586            dialog.Raise()
587    
588        def LayerProjection(self):
589    
590            layer = self.current_layer()
591    
592            name = "layer_projection" + str(id(layer))
593            dialog = self.get_open_dialog(name)
594    
595            if dialog is None:
596                map = self.canvas.Map()
597                dialog = projdialog.ProjFrame(self, name,
598                         _("Layer Projection: %s") % layer.Title(), layer)
599                self.add_dialog(name, dialog)
600                dialog.Show()
601            dialog.Raise()
602    
603        def LayerEditProperties(self):
604    
605            #
606            # the menu option for this should only be available if there
607            # is a current layer, so we don't need to check if the
608            # current layer is None
609            #
610    
611            layer = self.current_layer()
612            self.OpenLayerProperties(layer)
613    
614        def OpenLayerProperties(self, layer, group = None):
615            name = "layer_properties" + str(id(layer))
616            dialog = self.get_open_dialog(name)
617    
618            if dialog is None:
619                dialog = Classifier(self, name, layer, group)
620                self.add_dialog(name, dialog)
621                dialog.Show()
622            dialog.Raise()
623    
624        def LayerJoinTable(self):
625            print "LayerJoinTable: Not implemented."
626    
627        def LayerUnjoinTable(self):
628            print "LayerUnjoinTable: Not implemented."
629    
630        def ShowLegend(self):
631            if not self.LegendShown():
632                self.ToggleLegend()
633    
634        def ToggleLegend(self):
635            """Show the legend if it's not shown otherwise hide it again"""
636            name = "legend"
637            dialog = self.FindRegisteredDock(name)
638    
639            if dialog is None:
640                dialog = self.CreateDock(name, -1, _("Legend"), wxLAYOUT_LEFT)
641                legend.LegendPanel(dialog, None, self)
642                dialog.Dock()
643                dialog.GetPanel().SetMap(self.Map())
644                dialog.Show()
645          else:          else:
646              proj4Dlg = proj4dialog.Proj4Dialog(NULL, map.projection.params,              dialog.Show(not dialog.IsShown())
647                                                 map.BoundingBox())  
648          if proj4Dlg.ShowModal() == wxID_OK:      def LegendShown(self):
649              params = proj4Dlg.GetParams()          """Return true iff the legend is currently open"""
650              if params is not None:          dialog = self.FindRegisteredDock("legend")
651                  proj = Projection(params)          return dialog is not None and dialog.IsShown()
652    
653        def TableOpen(self):
654            dlg = wxFileDialog(self, _("Open Table"), ".", "",
655                               _("DBF Files (*.dbf)") + "|*.dbf|" +
656                               #_("CSV Files (*.csv)") + "|*.csv|" +
657                               _("All Files (*.*)") + "|*.*",
658                               wxOPEN)
659            if dlg.ShowModal() == wxID_OK:
660                filename = dlg.GetPath()
661                dlg.Destroy()
662                try:
663                    table = self.application.session.OpenTableFile(filename)
664                except IOError:
665                    # the layer couldn't be opened
666                    self.RunMessageBox(_("Open Table"),
667                                       _("Can't open the file '%s'.") % filename)
668              else:              else:
669                  proj = None                  self.ShowTableView(table)
670              map.SetProjection(proj)  
671          proj4Dlg.Destroy()      def TableClose(self):
672            print "TableClose: not implemented"
673    
674        def TableShow(self):
675            """Offer a multi-selection dialog for tables to be displayed
676    
677            The windows for the selected tables are opened or brought to
678            the front.
679            """
680            tables = self.application.session.Tables()
681    
682            dlg = wxMultipleChoiceDialog(self, _("Pick the table to show:"),
683                                         _("Show Table"),
684                                         [t.Title() for t in tables],
685                                         size = (400,300), style = wxRESIZE_BORDER)
686            if (dlg.ShowModal() == wxID_OK):
687                for i in dlg.GetValue():
688                    # XXX: if the table belongs to a layer, open a
689                    # LayerTableFrame instead of QueryTableFrame
690                    self.ShowTableView(tables[i])
691    
692        def TableJoin(self):
693            dlg = JoinDialog(self, _("Join Tables"), self.application.session)
694            dlg.ShowModal()
695    
696        def ShowTableView(self, table):
697            """Open a table view for the table and optionally"""
698            name = "table_view%d" % id(table)
699            dialog = self.get_open_dialog(name)
700            if dialog is None:
701                dialog = tableview.QueryTableFrame(self, name,
702                                                   _("Table: %s") % table.Title(),
703                                                   table)
704                self.add_dialog(name, dialog)
705                dialog.Show(True)
706            # FIXME: else bring dialog to front
707    
708      def ZoomInTool(self):      def ZoomInTool(self):
709          self.canvas.ZoomInTool()          self.canvas.ZoomInTool()
# Line 504  class MainWindow(wxFrame): Line 724  class MainWindow(wxFrame):
724      def FullExtent(self):      def FullExtent(self):
725          self.canvas.FitMapToWindow()          self.canvas.FitMapToWindow()
726    
727        def FullLayerExtent(self):
728            self.canvas.FitLayerToWindow(self.current_layer())
729    
730        def FullSelectionExtent(self):
731            self.canvas.FitSelectedToWindow()
732    
733        def ExportMap(self):
734            self.canvas.Export()
735    
736      def PrintMap(self):      def PrintMap(self):
737          self.canvas.Print()          self.canvas.Print()
738    
739      def identify_view_on_demand(self, layer, shape):      def RenameMap(self):
740            dlg = wxTextEntryDialog(self, "Map Title: ", "Rename Map",
741                                    self.Map().Title())
742            if dlg.ShowModal() == wxID_OK:
743                title = dlg.GetValue()
744                if title != "":
745                    self.Map().SetTitle(title)
746                    self.__SetTitle(title)
747    
748            dlg.Destroy()
749    
750        def identify_view_on_demand(self, layer, shapes):
751            """Subscribed to the canvas' SHAPES_SELECTED message
752    
753            If the current tool is the identify tool, at least one shape is
754            selected and the identify dialog is not shown, show the dialog.
755            """
756            # If the selection has become empty we don't need to do
757            # anything. Otherwise it could happen that the dialog was popped
758            # up when the selection became empty, e.g. when a new selection
759            # is opened while the identify tool is active and dialog had
760            # been closed
761            if not shapes:
762                return
763    
764          name = "identify_view"          name = "identify_view"
765          if self.canvas.CurrentTool() == "IdentifyTool":          if self.canvas.CurrentTool() == "IdentifyTool":
766              if not self.dialog_open(name):              if not self.dialog_open(name):
767                  dialog = identifyview.IdentifyView(self, self.interactor, name)                  dialog = identifyview.IdentifyView(self, name)
768                  self.add_dialog(name, dialog)                  self.add_dialog(name, dialog)
769                  dialog.Show(true)                  dialog.Show(True)
770              else:              else:
771                  # FIXME: bring dialog to front?                  # FIXME: bring dialog to front?
772                  pass                  pass
773    
774        def __SetTitle(self, title):
775            self.SetTitle("Thuban - " + title)
776    
777  #  #
778  # Define all the commands available in the main window  # Define all the commands available in the main window
779  #  #
# Line 529  def call_method(context, methodname, *ar Line 785  def call_method(context, methodname, *ar
785      apply(getattr(context.mainwindow, methodname), args)      apply(getattr(context.mainwindow, methodname), args)
786    
787  def _method_command(name, title, method, helptext = "",  def _method_command(name, title, method, helptext = "",
788                      icon = "", sensitive = None):                      icon = "", sensitive = None, checked = None):
789      """Add a command implemented by a method of the mainwindow object"""      """Add a command implemented by a method of the mainwindow object"""
790      registry.Add(Command(name, title, call_method, args=(method,),      registry.Add(Command(name, title, call_method, args=(method,),
791                           helptext = helptext, icon = icon,                           helptext = helptext, icon = icon,
792                           sensitive = sensitive))                           sensitive = sensitive, checked = checked))
793    
794  def make_check_current_tool(toolname):  def make_check_current_tool(toolname):
795      """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 549  def make_check_current_tool(toolname): Line 805  def make_check_current_tool(toolname):
805  def _tool_command(name, title, method, toolname, helptext = "",  def _tool_command(name, title, method, toolname, helptext = "",
806                    icon = "", sensitive = None):                    icon = "", sensitive = None):
807      """Add a tool command"""      """Add a tool command"""
808      registry.Add(Command(name, title, call_method, args=(method,),      registry.Add(ToolCommand(name, title, call_method, args=(method,),
809                           helptext = helptext, icon = icon,                               helptext = helptext, icon = icon,
810                           checked = make_check_current_tool(toolname),                               checked = make_check_current_tool(toolname),
811                           sensitive = sensitive))                               sensitive = sensitive))
812    
813  def _has_selected_layer(context):  def _has_selected_layer(context):
814      """Return true if a layer is selected in the context"""      """Return true if a layer is selected in the context"""
815      return context.mainwindow.has_selected_layer()      return context.mainwindow.has_selected_layer()
816    
817    def _has_selected_shapes(context):
818        """Return true if a layer is selected in the context"""
819        return context.mainwindow.has_selected_shapes()
820    
821  def _can_remove_layer(context):  def _can_remove_layer(context):
822      return context.mainwindow.CanRemoveLayer()      return context.mainwindow.CanRemoveLayer()
823    
824  def _has_tree_window_shown(context):  def _has_tree_window_shown(context):
825      """Return true if the tree window is shown"""      """Return true if the tree window is shown"""
826      return context.mainwindow.get_open_dialog("session_tree") is None      return context.mainwindow.SessionTreeShown()
827    
828  def _has_visible_map(context):  def _has_visible_map(context):
829      """Return true iff theres a visible map in the mainwindow.      """Return true iff theres a visible map in the mainwindow.
# Line 576  def _has_visible_map(context): Line 836  def _has_visible_map(context):
836                  return 1                  return 1
837      return 0      return 0
838    
839    def _has_legend_shown(context):
840        """Return true if the legend window is shown"""
841        return context.mainwindow.LegendShown()
842    
843    
844  # File menu  # File menu
845  _method_command("new_session", "&New Session", "NewSession")  _method_command("new_session", _("&New Session"), "NewSession")
846  _method_command("open_session", "&Open Session", "OpenSession")  _method_command("open_session", _("&Open Session..."), "OpenSession")
847  _method_command("save_session", "&Save Session", "SaveSession")  _method_command("save_session", _("&Save Session"), "SaveSession")
848  _method_command("save_session_as", "Save Session &As", "SaveSessionAs")  _method_command("save_session_as", _("Save Session &As..."), "SaveSessionAs")
849  _method_command("show_session_tree", "Show Session &Tree", "ShowSessionTree",  _method_command("toggle_session_tree", _("Session &Tree"), "ToggleSessionTree",
850                  sensitive = _has_tree_window_shown)                  checked = _has_tree_window_shown)
851  _method_command("exit", "E&xit", "Exit")  _method_command("toggle_legend", _("Legend"), "ToggleLegend",
852                    checked = _has_legend_shown)
853    _method_command("exit", _("E&xit"), "Exit")
854    
855  # Help menu  # Help menu
856  _method_command("help_about", "&About", "About")  _method_command("help_about", _("&About..."), "About")
857    
858    
859  # Map menu  # Map menu
860  _method_command("map_projection", "Pro&jection", "Projection")  _method_command("map_projection", _("Pro&jection..."), "MapProjection")
861    
862  _tool_command("map_zoom_in_tool", "&Zoom in", "ZoomInTool", "ZoomInTool",  _tool_command("map_zoom_in_tool", _("&Zoom in"), "ZoomInTool", "ZoomInTool",
863                helptext = "Switch to map-mode 'zoom-in'", icon = "zoom_in",                helptext = _("Switch to map-mode 'zoom-in'"), icon = "zoom_in",
864                sensitive = _has_visible_map)                sensitive = _has_visible_map)
865  _tool_command("map_zoom_out_tool", "Zoom &out", "ZoomOutTool", "ZoomOutTool",  _tool_command("map_zoom_out_tool", _("Zoom &out"), "ZoomOutTool", "ZoomOutTool",
866                helptext = "Switch to map-mode 'zoom-out'", icon = "zoom_out",                helptext = _("Switch to map-mode 'zoom-out'"), icon = "zoom_out",
867                sensitive = _has_visible_map)                sensitive = _has_visible_map)
868  _tool_command("map_pan_tool", "&Pan", "PanTool", "PanTool",  _tool_command("map_pan_tool", _("&Pan"), "PanTool", "PanTool",
869                helptext = "Switch to map-mode 'pan'", icon = "pan",                helptext = _("Switch to map-mode 'pan'"), icon = "pan",
870                sensitive = _has_visible_map)                sensitive = _has_visible_map)
871  _tool_command("map_identify_tool", "&Identify", "IdentifyTool", "IdentifyTool",  _tool_command("map_identify_tool", _("&Identify"), "IdentifyTool",
872                helptext = "Switch to map-mode 'identify'", icon = "identify",                "IdentifyTool",
873                  helptext = _("Switch to map-mode 'identify'"), icon = "identify",
874                sensitive = _has_visible_map)                sensitive = _has_visible_map)
875  _tool_command("map_label_tool", "&Label", "LabelTool", "LabelTool",  _tool_command("map_label_tool", _("&Label"), "LabelTool", "LabelTool",
876                helptext = "Add/Remove labels", icon = "label",                helptext = _("Add/Remove labels"), icon = "label",
877                sensitive = _has_visible_map)                sensitive = _has_visible_map)
878  _method_command("map_full_extent", "&Full extent", "FullExtent",  _method_command("map_full_extent", _("&Full extent"), "FullExtent",
879                 helptext = "Full Extent", icon = "fullextent",                 helptext = _("Full Extent"), icon = "fullextent",
880                sensitive = _has_visible_map)                sensitive = _has_visible_map)
881  _method_command("map_print", "Prin&t", "PrintMap", helptext = "Print the map")  _method_command("layer_full_extent", _("&Full layer extent"), "FullLayerExtent",
882                   helptext = _("Full Layer Extent"), icon = "fulllayerextent",
883                  sensitive = _has_selected_layer)
884    _method_command("selected_full_extent", _("&Full selection extent"), "FullSelectionExtent",
885                   helptext = _("Full Selection Extent"), icon = "fullselextent",
886                  sensitive = _has_selected_shapes)
887    _method_command("map_export", _("E&xport"), "ExportMap",
888                        helptext = _("Export the map to file"))
889    _method_command("map_print", _("Prin&t"), "PrintMap",
890                    helptext = _("Print the map"))
891    _method_command("map_rename", _("&Rename..."), "RenameMap",
892                    helptext = _("Rename the map"))
893    _method_command("layer_add", _("&Add Layer..."), "AddLayer",
894                    helptext = _("Add a new layer to active map"))
895    _method_command("rasterlayer_add", _("&Add Image Layer..."), "AddRasterLayer",
896                    helptext = _("Add a new image layer to active map"))
897    _method_command("layer_remove", _("&Remove Layer"), "RemoveLayer",
898                    helptext = _("Remove selected layer(s)"),
899                    sensitive = _can_remove_layer)
900    
901  # Layer menu  # Layer menu
902  _method_command("layer_add", "&Add Layer", "AddLayer",  _method_command("layer_projection", _("Pro&jection..."), "LayerProjection",
                 helptext = "Add a new layer to active map")  
 _method_command("layer_remove", "&Remove Layer", "RemoveLayer",  
                 helptext = "Remove selected layer(s)",  
                 sensitive = _can_remove_layer)  
 _method_command("layer_fill_color", "&Fill Color", "LayerFillColor",  
                 helptext = "Set the fill color of selected layer(s)",  
903                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
904  _method_command("layer_transparent_fill", "&Transparent Fill",  _method_command("layer_raise", _("&Raise"), "RaiseLayer",
905                  "LayerTransparentFill",                  helptext = _("Raise selected layer(s)"),
                 helptext = "Do not fill the selected layer(s)",  
906                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
907  _method_command("layer_outline_color", "&Outline Color", "LayerOutlineColor",  _method_command("layer_lower", _("&Lower"), "LowerLayer",
908                  helptext = "Set the outline color of selected layer(s)",                  helptext = _("Lower selected layer(s)"),
909                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
910  _method_command("layer_no_outline", "&No Outline", "LayerNoOutline",  _method_command("layer_show", _("&Show"), "ShowLayer",
911                  helptext = "Do not draw the outline of the selected layer(s)",                  helptext = _("Make selected layer(s) visible"),
912                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
913  _method_command("layer_raise", "&Raise", "RaiseLayer",  _method_command("layer_hide", _("&Hide"), "HideLayer",
914                  helptext = "Raise selected layer(s)",                  helptext = _("Make selected layer(s) unvisible"),
915                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
916  _method_command("layer_lower", "&Lower", "LowerLayer",  _method_command("layer_show_table", _("Show Ta&ble"), "LayerShowTable",
917                  helptext = "Lower selected layer(s)",                  helptext = _("Show the selected layer's table"),
918                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
919  _method_command("layer_show", "&Show", "ShowLayer",  _method_command("layer_properties", _("&Properties..."), "LayerEditProperties",
                 helptext = "Make selected layer(s) visible",  
920                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
921  _method_command("layer_hide", "&Hide", "HideLayer",  _method_command("layer_jointable", _("&Join Table..."), "LayerJoinTable",
                 helptext = "Make selected layer(s) unvisible",  
922                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
923  _method_command("layer_show_table", "Show Ta&ble", "LayerShowTable",  _method_command("layer_unjointable", _("&Unjoin Table..."), "LayerUnjoinTable",
                 helptext = "Show the selected layer's table",  
924                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
925    
926    # Table menu
927    _method_command("table_open", _("&Open..."), "TableOpen")
928    _method_command("table_close", _("&Close"), "TableClose")
929    _method_command("table_show", _("&Show"), "TableShow")
930    _method_command("table_join", _("&Join..."), "TableJoin")
931    
932  # the menu structure  #  Export only under Windows ...
933  main_menu = Menu("<main>", "<main>",  map_menu = ["layer_add", "rasterlayer_add", "layer_remove", "map_rename",
                  [Menu("file", "&File",  
                        ["new_session", "open_session", None,  
                         "save_session", "save_session_as", None,  
                         "show_session_tree", None,  
                         "exit"]),  
                   Menu("map", "&Map",  
                        ["layer_add", "layer_remove",  
934                          None,                          None,
935                          "map_projection",                          "map_projection",
936                          None,                          None,
937                          "map_zoom_in_tool", "map_zoom_out_tool",                          "map_zoom_in_tool", "map_zoom_out_tool",
938                          "map_pan_tool", "map_identify_tool", "map_label_tool",                          "map_pan_tool",
939                          None,                          "map_full_extent",
940                          "map_full_extent",                          "layer_full_extent",
941                            "selected_full_extent",
942                          None,                          None,
943                          "map_print"]),                          "map_identify_tool", "map_label_tool",
                   Menu("layer", "&Layer",  
                        ["layer_fill_color", "layer_transparent_fill",  
                         "layer_outline_color", "layer_no_outline",  
944                          None,                          None,
945                          "layer_raise", "layer_lower",                          "toggle_legend",
946                            None]
947    if wxPlatform == '__WXMSW__':
948        map_menu.append("map_export")
949    map_menu.append("map_print")
950    
951    # the menu structure
952    main_menu = Menu("<main>", "<main>",
953                     [Menu("file", _("&File"),
954                           ["new_session", "open_session", None,
955                            "save_session", "save_session_as", None,
956                            "toggle_session_tree", None,
957                            "exit"]),
958                      Menu("map", _("&Map"), map_menu),
959                      Menu("layer", _("&Layer"),
960                            ["layer_raise", "layer_lower",
961                          None,                          None,
962                          "layer_show", "layer_hide",                          "layer_show", "layer_hide",
963                          None,                          None,
964                          "layer_show_table"]),                          "layer_projection",
965                    Menu("help", "&Help",                          None,
966                            "layer_show_table",
967                            "layer_jointable",
968                            "layer_unjointable",
969                            None,
970                            "layer_properties"]),
971                      Menu("table", _("&Table"),
972                           ["table_open", "table_close",
973                           None,
974                           "table_show",
975                           None,
976                           "table_join"]),
977                      Menu("help", _("&Help"),
978                         ["help_about"])])                         ["help_about"])])
979    
980  # the main toolbar  # the main toolbar
981    
982  main_toolbar = Menu("<toolbar>", "<toolbar>",  main_toolbar = Menu("<toolbar>", "<toolbar>",
983                      ["map_zoom_in_tool", "map_zoom_out_tool", "map_pan_tool",                      ["map_zoom_in_tool", "map_zoom_out_tool", "map_pan_tool",
984                       "map_identify_tool", "map_label_tool", "map_full_extent"])                       "map_full_extent",
985                         "layer_full_extent",
986                         "selected_full_extent",
987                         None,
988                         "map_identify_tool", "map_label_tool"])
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