/[thuban]/branches/WIP-pyshapelib-bramz/Thuban/UI/mainwindow.py
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revision 227 by bh, Thu Jul 18 16:27:11 2002 UTC revision 1037 by bh, Mon May 26 17:30:43 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      def __init__(self, parent, ID, application, interactor):      # Some messages that can be subscribed/unsubscribed directly through
59          wxFrame.__init__(self, parent, ID, 'Thuban',      # the MapCanvas come in fact from other objects. This is a map to
60                           wxDefaultPosition, wxSize(400, 300))      # 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,
74                     initial_message = None, size = wxSize(-1, -1)):
75            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          self.SetStatusText("This is the wxPython-based "          if initial_message:
82                        "Graphical User Interface for exploring geographic data")              self.SetStatusText(initial_message)
83    
84          self.identify_view = None          self.identify_view = None
85    
# 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            self.SetAutoLayout(True)
106    
107          interactor.Subscribe(SELECTED_SHAPE, self.identify_view_on_demand)          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):
261            """Return the context object for a command invoked from this window
262            """
263            return Context(self.application, self.application.Session(), self)
264    
265      def invoke_command(self, event):      def invoke_command(self, event):
266          name = self.id_to_name.get(event.GetId())          name = self.id_to_name.get(event.GetId())
267          if name is not None:          if name is not None:
268              command = registry.Command(name)              command = registry.Command(name)
269              context = Context(self.application, self.application.Session(),              command.Execute(self.Context())
                               self)  
             command.Execute(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 = Context(self.application, self.application.Session(), self)          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 230  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 248  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 263  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 273  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())
402          if result == wxID_CANCEL:          if result == wxID_CANCEL:
403              event.Veto()              event.Veto()
404          else:          else:
405                # FIXME: it would be better to tie the unsubscription to
406                # wx's destroy event, but that isn't implemented for wxGTK
407                # yet.
408                self.canvas.Unsubscribe(VIEW_POSITION, self.view_position_changed)
409                DockFrame.OnClose(self, event)
410              self.Destroy()              self.Destroy()
411    
412      def SetMap(self, map):      def SetMap(self, map):
413          self.canvas.SetMap(map)          self.canvas.SetMap(map)
414            self.__SetTitle(map.Title())
415    
416            dialog = self.FindRegisteredDock("legend")
417            if dialog is not None:
418                dialog.GetPanel().SetMap(self.Map())
419    
420        def Map(self):
421            """Return the map displayed by this mainwindow"""
422    
423            return self.canvas.Map()
424    
425      def ShowSessionTree(self):      def ToggleSessionTree(self):
426            """If the session tree is shown close it otherwise create a new tree"""
427          name = "session_tree"          name = "session_tree"
428          dialog = self.get_open_dialog(name)          dialog = self.get_open_dialog(name)
429          if dialog is None:          if dialog is None:
430              dialog = tree.SessionTreeView(self, self.application, name)              dialog = tree.SessionTreeView(self, self.application, name)
431              self.add_dialog(name, dialog)              self.add_dialog(name, dialog)
432              dialog.Show(true)              dialog.Show(True)
433          else:          else:
434              # FIXME: bring dialog to front here              dialog.Close()
435              pass  
436        def SessionTreeShown(self):
437            """Return true iff the session tree is currently shown"""
438            return self.get_open_dialog("session_tree") is not None
439    
440      def About(self):      def About(self):
441          self.RunMessageBox("About",          self.RunMessageBox(_("About"),
442                             ("Thuban is a program for\n"                             _("Thuban %s\n"
443                                #"Build Date: %s\n"
444                                "using:\n"
445                                "  %s\n"
446                                "  %s\n\n"
447                                "Thuban is a program for\n"
448                              "exploring geographic data.\n"                              "exploring geographic data.\n"
449                              "Copyright (C) 2001 Intevation GmbH.\n"                              "Copyright (C) 2001-2003 Intevation GmbH.\n"
450                              "Thuban is licensed under the GPL"),                              "Thuban is licensed under the GNU GPL"
451                                % (Thuban.version.longversion,
452                                   "wxPython %s" % wxPython_version,
453                                   "Python %d.%d.%d" % sys.version_info[:3]
454                                  )),
455    #                           % __ThubanVersion__), #__BuildDate__)),
456                             wxOK | wxICON_INFORMATION)                             wxOK | wxICON_INFORMATION)
457    
458      def AddLayer(self):      def AddLayer(self):
459          dlg = wxFileDialog(self, "Select a data file", ".", "", "*.*",          dlg = wxFileDialog(self, _("Select a data file"), ".", "", "*.*",
460                             wxOPEN)                             wxOPEN)
461          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wxID_OK:
462              filename = dlg.GetPath()              filename = dlg.GetPath()
463              title = os.path.splitext(os.path.basename(filename))[0]              title = os.path.splitext(os.path.basename(filename))[0]
             layer = Layer(title, filename)  
464              map = self.canvas.Map()              map = self.canvas.Map()
465              has_layers = map.HasLayers()              has_layers = map.HasLayers()
466              try:              try:
467                    store = self.application.Session().OpenShapefile(filename)
468                except IOError:
469                    # the layer couldn't be opened
470                    self.RunMessageBox(_("Add Layer"),
471                                       _("Can't open the file '%s'.") % filename)
472                else:
473                    layer = Layer(title, store)
474                  map.AddLayer(layer)                  map.AddLayer(layer)
475                    if not has_layers:
476                        # if we're adding a layer to an empty map, fit the
477                        # new map to the window
478                        self.canvas.FitMapToWindow()
479            dlg.Destroy()
480    
481        def AddRasterLayer(self):
482            dlg = wxFileDialog(self, _("Select an image file"), ".", "", "*.*",
483                               wxOPEN)
484            if dlg.ShowModal() == wxID_OK:
485                filename = dlg.GetPath()
486                title = os.path.splitext(os.path.basename(filename))[0]
487                map = self.canvas.Map()
488                has_layers = map.HasLayers()
489                try:
490                    layer = RasterLayer(title, filename)
491              except IOError:              except IOError:
492                  # the layer couldn't be opened                  # the layer couldn't be opened
493                  self.RunMessageBox("Add Layer",                  self.RunMessageBox(_("Add Image Layer"),
494                                     "Can't open the file '%s'." % filename)                                     _("Can't open the file '%s'.") % filename)
495              else:              else:
496                    map.AddLayer(layer)
497                  if not has_layers:                  if not has_layers:
498                      # if we're adding a layer to an empty map, for the                      # if we're adding a layer to an empty map, fit the
499                      # new map to the window                      # new map to the window
500                      self.canvas.FitMapToWindow()                      self.canvas.FitMapToWindow()
501          dlg.Destroy()          dlg.Destroy()
# Line 357  class MainWindow(wxFrame): Line 505  class MainWindow(wxFrame):
505          if layer is not None:          if layer is not None:
506              self.canvas.Map().RemoveLayer(layer)              self.canvas.Map().RemoveLayer(layer)
507    
508        def CanRemoveLayer(self):
509            """Return true if the currently selected layer can be deleted.
510    
511            If no layer is selected return False.
512    
513            The return value of this method determines whether the remove
514            layer command is sensitive in menu.
515            """
516            layer = self.current_layer()
517            if layer is not None:
518                return self.canvas.Map().CanRemoveLayer(layer)
519            return False
520    
521      def RaiseLayer(self):      def RaiseLayer(self):
522          layer = self.current_layer()          layer = self.current_layer()
523          if layer is not None:          if layer is not None:
# Line 372  class MainWindow(wxFrame): Line 533  class MainWindow(wxFrame):
533    
534          If no layer is selected, return None          If no layer is selected, return None
535          """          """
536          return self.interactor.SelectedLayer()          return self.canvas.SelectedLayer()
537    
538      def has_selected_layer(self):      def has_selected_layer(self):
539          """Return true if a layer is currently selected"""          """Return true if a layer is currently selected"""
540          return self.interactor.HasSelectedLayer()          return self.canvas.HasSelectedLayer()
541    
542      def choose_color(self):      def has_selected_shapes(self):
543          """Run the color selection dialog and return the selected color.          """Return true if a shape is currently selected"""
544            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)  
545    
546      def HideLayer(self):      def HideLayer(self):
547          layer = self.current_layer()          layer = self.current_layer()
# Line 435  class MainWindow(wxFrame): Line 560  class MainWindow(wxFrame):
560              name = "table_view" + str(id(table))              name = "table_view" + str(id(table))
561              dialog = self.get_open_dialog(name)              dialog = self.get_open_dialog(name)
562              if dialog is None:              if dialog is None:
563                  dialog = tableview.TableFrame(self, self.interactor, name,                  dialog = tableview.LayerTableFrame(self, name,
564                                                "Table: %s" % layer.Title(),                                           _("Layer Table: %s") % layer.Title(),
565                                                layer, table)                                           layer, table)
566                  self.add_dialog(name, dialog)                  self.add_dialog(name, dialog)
567                  dialog.Show(true)                  dialog.Show(True)
568              else:              else:
569                  # FIXME: bring dialog to front here                  # FIXME: bring dialog to front here
570                  pass                  pass
571    
572      def Projection(self):      def MapProjection(self):
573          map = self.canvas.Map()  
574          proj = map.projection          name = "map_projection"
575          if proj is None:          dialog = self.get_open_dialog(name)
576              proj4Dlg = proj4dialog.Proj4Dialog(NULL, None, map.BoundingBox())  
577            if dialog is None:
578                map = self.canvas.Map()
579                dialog = projdialog.ProjFrame(self, name,
580                         _("Map Projection: %s") % map.Title(), map)
581                self.add_dialog(name, dialog)
582                dialog.Show()
583            dialog.Raise()
584    
585        def LayerProjection(self):
586    
587            layer = self.current_layer()
588    
589            name = "layer_projection" + str(id(layer))
590            dialog = self.get_open_dialog(name)
591    
592            if dialog is None:
593                map = self.canvas.Map()
594                dialog = projdialog.ProjFrame(self, name,
595                         _("Layer Projection: %s") % layer.Title(), layer)
596                self.add_dialog(name, dialog)
597                dialog.Show()
598            dialog.Raise()
599    
600        def LayerEditProperties(self):
601    
602            #
603            # the menu option for this should only be available if there
604            # is a current layer, so we don't need to check if the
605            # current layer is None
606            #
607    
608            layer = self.current_layer()
609            self.OpenLayerProperties(layer)
610    
611        def OpenLayerProperties(self, layer, group = None):
612            name = "layer_properties" + str(id(layer))
613            dialog = self.get_open_dialog(name)
614    
615            if dialog is None:
616                dialog = Classifier(self, name, layer, group)
617                self.add_dialog(name, dialog)
618                dialog.Show()
619            dialog.Raise()
620    
621        def LayerJoinTable(self):
622            print "LayerJoinTable: Not implemented."
623    
624        def LayerUnjoinTable(self):
625            print "LayerUnjoinTable: Not implemented."
626    
627        def ShowLegend(self):
628            if not self.LegendShown():
629                self.ToggleLegend()
630    
631        def ToggleLegend(self):
632            """Show the legend if it's not shown otherwise hide it again"""
633            name = "legend"
634            dialog = self.FindRegisteredDock(name)
635    
636            if dialog is None:
637                dialog = self.CreateDock(name, -1, _("Legend"), wxLAYOUT_LEFT)
638                legend.LegendPanel(dialog, None, self)
639                dialog.Dock()
640                dialog.GetPanel().SetMap(self.Map())
641                dialog.Show()
642          else:          else:
643              proj4Dlg = proj4dialog.Proj4Dialog(NULL, map.projection.params,              dialog.Show(not dialog.IsShown())
644                                                 map.BoundingBox())  
645          if proj4Dlg.ShowModal() == wxID_OK:      def LegendShown(self):
646              params = proj4Dlg.GetParams()          """Return true iff the legend is currently open"""
647              if params is not None:          dialog = self.FindRegisteredDock("legend")
648                  proj = Projection(params)          return dialog is not None and dialog.IsShown()
649    
650        def TableOpen(self):
651            dlg = wxFileDialog(self, _("Open Table"), ".", "",
652                               _("DBF Files (*.dbf)") + "|*.dbf|" +
653                               #_("CSV Files (*.csv)") + "|*.csv|" +
654                               _("All Files (*.*)") + "|*.*",
655                               wxOPEN)
656            if dlg.ShowModal() == wxID_OK:
657                self.application.session.OpenTableFile(dlg.GetPath())
658    
659            dlg.Destroy()
660    
661        def TableClose(self):
662            print "TableClose: not implemented"
663    
664        def TableShow(self):
665            """Offer a multi-selection dialog for tables to be displayed
666            
667            The windows for the selected tables are opened or brought to
668            the front.
669            """
670            tables = self.application.session.Tables()
671            table_list = []
672            for table in tables:
673                table_list.append(table.Title())
674    
675            dlg = wxMultipleChoiceDialog(self, _("Pick the table to show:"),
676                                         _("Show Table"), table_list,
677                                         size = (400,300), style = wxRESIZE_BORDER)
678            if (dlg.ShowModal() == wxID_OK):
679                for i in dlg.GetValue():
680                    # XXX: First check whether the dialog is already open
681                    # and if so, bring it to the front.
682                    # XXX: if the table belongs to a layer, open a
683                    # LayerTableFrame instead of QueryTableFrame
684                    print "tables[i]:", tables[i]
685                    dialog = tableview.QueryTableFrame(self, table_list[i],
686                                                  _("Table: %s") % table_list[i],
687                                                  tables[i])
688                    self.add_dialog(table_list[i], dialog)
689                    dialog.Show(True)
690    
691            # XXX: just some analyis code, remove it when the above XXX is
692            # resolved.
693            for d in self.dialogs.values():
694                if isinstance(d, tableview.LayerTableFrame):
695                    print "LayerTable:", d.GetTitle()
696                elif isinstance(d, tableview.QueryTableFrame):
697                    print "QueryTable:", d.GetTitle()
698              else:              else:
699                  proj = None                  print "Other:", d.GetTitle()
700              map.SetProjection(proj)  
701          proj4Dlg.Destroy()      def TableHide(self):
702            print "TableHide: not implemented"
703    
704        def TableJoin(self):
705            dlg = JoinDialog(self, _("Join Tables"), self.application.session)
706            dlg.ShowModal()
707    
708      def ZoomInTool(self):      def ZoomInTool(self):
709          self.canvas.ZoomInTool()          self.canvas.ZoomInTool()
# Line 480  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 505  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 _tool_command(name, title, method, toolname, helptext = "",  def make_check_current_tool(toolname):
795                    icon = ""):      """Return a function that tests if the currently active tool is toolname
796      """Add a tool command"""  
797        The returned function can be called with the context and returns
798        true iff the currently active tool's name is toolname. It's directly
799        usable as the 'checked' callback of a command.
800        """
801      def check_current_tool(context, name=toolname):      def check_current_tool(context, name=toolname):
802          return context.mainwindow.canvas.CurrentTool() == name          return context.mainwindow.canvas.CurrentTool() == name
803      registry.Add(Command(name, title, call_method, args=(method,),      return check_current_tool
804                           helptext = helptext, icon = icon,  
805                           checked = check_current_tool))  def _tool_command(name, title, method, toolname, helptext = "",
806                      icon = "", sensitive = None):
807        """Add a tool command"""
808        registry.Add(ToolCommand(name, title, call_method, args=(method,),
809                                 helptext = helptext, icon = icon,
810                                 checked = make_check_current_tool(toolname),
811                                 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):
822        return context.mainwindow.CanRemoveLayer()
823    
824    def _has_tree_window_shown(context):
825        """Return true if the tree window is shown"""
826        return context.mainwindow.SessionTreeShown()
827    
828    def _has_visible_map(context):
829        """Return true iff theres a visible map in the mainwindow.
830    
831        A visible map is a map with at least one visible layer."""
832        map = context.mainwindow.Map()
833        if map is not None:
834            for layer in map.Layers():
835                if layer.Visible():
836                    return 1
837        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  _method_command("exit", "&Exit", "Exit")                  checked = _has_tree_window_shown)
851    _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  _tool_command("map_zoom_out_tool", "Zoom &out", "ZoomOutTool", "ZoomOutTool",                sensitive = _has_visible_map)
865                helptext = "Switch to map-mode 'zoom-out'", icon = "zoom_out")  _tool_command("map_zoom_out_tool", _("Zoom &out"), "ZoomOutTool", "ZoomOutTool",
866  _tool_command("map_pan_tool", "&Pan", "PanTool", "PanTool",                helptext = _("Switch to map-mode 'zoom-out'"), icon = "zoom_out",
867                helptext = "Switch to map-mode 'pan'", icon = "pan")                sensitive = _has_visible_map)
868  _tool_command("map_identify_tool", "&Identify", "IdentifyTool", "IdentifyTool",  _tool_command("map_pan_tool", _("&Pan"), "PanTool", "PanTool",
869                helptext = "Switch to map-mode 'identify'", icon = "identify")                helptext = _("Switch to map-mode 'pan'"), icon = "pan",
870  _tool_command("map_label_tool", "&Label", "LabelTool", "LabelTool",                sensitive = _has_visible_map)
871                helptext = "Add/Remove labels", icon = "label")  _tool_command("map_identify_tool", _("&Identify"), "IdentifyTool",
872  _method_command("map_full_extent", "&Full extent", "FullExtent",                "IdentifyTool",
873                 helptext = "Full Extent", icon = "fullextent")                helptext = _("Switch to map-mode 'identify'"), icon = "identify",
874  _method_command("map_print", "Prin&t", "PrintMap", helptext = "Print the map")                sensitive = _has_visible_map)
875    _tool_command("map_label_tool", _("&Label"), "LabelTool", "LabelTool",
876                  helptext = _("Add/Remove labels"), icon = "label",
877                  sensitive = _has_visible_map)
878    _method_command("map_full_extent", _("&Full extent"), "FullExtent",
879                   helptext = _("Full Extent"), icon = "fullextent",
880                  sensitive = _has_visible_map)
881    _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 = _has_selected_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_hide", _("&Hide"), "TableHide")
931    _method_command("table_join", _("&Join..."), "TableJoin")
932    
933  # the menu structure  #  Export only under Windows ...
934  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",  
935                          None,                          None,
936                          "map_projection",                          "map_projection",
937                          None,                          None,
938                          "map_zoom_in_tool", "map_zoom_out_tool",                          "map_zoom_in_tool", "map_zoom_out_tool",
939                          "map_pan_tool", "map_identify_tool", "map_label_tool",                          "map_pan_tool",
940                            "map_full_extent",
941                            "layer_full_extent",
942                            "selected_full_extent",
943                          None,                          None,
944                          "map_full_extent",                          "map_identify_tool", "map_label_tool",
945                          None,                          None,
946                          "map_print"]),                          "toggle_legend",
947                    Menu("layer", "&Layer",                          None]
948                         ["layer_fill_color", "layer_transparent_fill",  if wxPlatform == '__WXMSW__':
949                          "layer_outline_color", "layer_no_outline",      map_menu.append("map_export")
950                          None,  map_menu.append("map_print")
951                          "layer_raise", "layer_lower",  
952    # the menu structure
953    main_menu = Menu("<main>", "<main>",
954                     [Menu("file", _("&File"),
955                           ["new_session", "open_session", None,
956                            "save_session", "save_session_as", None,
957                            "toggle_session_tree", None,
958                            "exit"]),
959                      Menu("map", _("&Map"), map_menu),
960                      Menu("layer", _("&Layer"),
961                            ["layer_raise", "layer_lower",
962                          None,                          None,
963                          "layer_show", "layer_hide",                          "layer_show", "layer_hide",
964                          None,                          None,
965                          "layer_show_table"]),                          "layer_projection",
966                    Menu("help", "&Help",                          None,
967                            "layer_show_table",
968                            "layer_jointable",
969                            "layer_unjointable",
970                            None,
971                            "layer_properties"]),
972                      Menu("table", _("&Table"),
973                           ["table_open", "table_close",
974                           None,
975                           "table_show", "table_hide",
976                           None,
977                           "table_join"]),
978                      Menu("help", _("&Help"),
979                         ["help_about"])])                         ["help_about"])])
980    
981  # the main toolbar  # the main toolbar
982    
983  main_toolbar = Menu("<toolbar>", "<toolbar>",  main_toolbar = Menu("<toolbar>", "<toolbar>",
984                      ["map_zoom_in_tool", "map_zoom_out_tool", "map_pan_tool",                      ["map_zoom_in_tool", "map_zoom_out_tool", "map_pan_tool",
985                       "map_identify_tool", "map_label_tool", "map_full_extent"])                       "map_full_extent",
986                         "layer_full_extent",
987                         "selected_full_extent",
988                         None,
989                         "map_identify_tool", "map_label_tool"])
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