/[thuban]/branches/WIP-pyshapelib-bramz/Thuban/UI/mainwindow.py
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revision 321 by bh, Fri Sep 13 14:21:48 2002 UTC revision 1076 by frank, Wed May 28 08:25:12 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
 from Thuban.Model.color import Color  
 from Thuban.Model.proj import Projection  
32    
33  import view  import view
34  import tree  import tree
 import proj4dialog  
35  import tableview, identifyview  import tableview, identifyview
36    from Thuban.UI.classifier import Classifier
37    import legend
38  from menu import Menu  from menu import Menu
39    
40  from context import Context  from context import Context
41  from command import registry, Command  from command import registry, Command, ToolCommand
42  from messages import SELECTED_SHAPE, VIEW_POSITION  from messages import LAYER_SELECTED, SHAPES_SELECTED, VIEW_POSITION
43    
44    from Thuban.UI.dock import DockFrame
45    from Thuban.UI.join import JoinDialog
46    
47    import resource
48    
49    import projdialog
50    
 # the directory where the toolbar icons are stored  
 bitmapdir = os.path.join(Thuban.__path__[0], os.pardir, "Resources", "Bitmaps")  
 bitmapext = ".xpm"  
51    
52    
53  class MainWindow(wxFrame):  class MainWindow(DockFrame):
54    
55        # Some messages that can be subscribed/unsubscribed directly through
56        # the MapCanvas come in fact from other objects. This is a map to
57        # map those messages to the names of the instance variables they
58        # actually come from. This delegation is implemented in the
59        # Subscribe and unsubscribed methods
60        delegated_messages = {LAYER_SELECTED: "canvas",
61                              SHAPES_SELECTED: "canvas"}
62    
63        # Methods delegated to some instance variables. The delegation is
64        # implemented in the __getattr__ method.
65        delegated_methods = {"SelectLayer": "canvas",
66                             "SelectShapes": "canvas",
67                             "SelectedLayer": "canvas",
68                             "SelectedShapes": "canvas",
69                             }
70    
71      def __init__(self, parent, ID, title, application, interactor,      def __init__(self, parent, ID, title, application, interactor,
72                   initial_message = None, size = wxSize(-1, -1)):                   initial_message = None, size = wxSize(-1, -1)):
73          wxFrame.__init__(self, parent, ID, title, wxDefaultPosition, size)          DockFrame.__init__(self, parent, ID, title, wxDefaultPosition, size)
74            #wxFrame.__init__(self, parent, ID, title, wxDefaultPosition, size)
75    
76          self.application = application          self.application = application
         self.interactor = interactor  
77    
78          self.CreateStatusBar()          self.CreateStatusBar()
79          if initial_message:          if initial_message:
# Line 63  class MainWindow(wxFrame): Line 91  class MainWindow(wxFrame):
91          # call Realize to make sure that the tools appear.          # call Realize to make sure that the tools appear.
92          toolbar.Realize()          toolbar.Realize()
93    
94    
95          # Create the map canvas          # Create the map canvas
96          canvas = view.MapCanvas(self, -1, interactor)          canvas = view.MapCanvas(self, -1)
97          canvas.Subscribe(VIEW_POSITION, self.view_position_changed)          canvas.Subscribe(VIEW_POSITION, self.view_position_changed)
98            canvas.Subscribe(SHAPES_SELECTED, self.identify_view_on_demand)
99          self.canvas = canvas          self.canvas = canvas
100    
101          self.init_dialogs()          self.SetMainWindow(self.canvas)
102    
103          interactor.Subscribe(SELECTED_SHAPE, self.identify_view_on_demand)          self.SetAutoLayout(True)
104    
105            self.init_dialogs()
106    
107          EVT_CLOSE(self, self.OnClose)          EVT_CLOSE(self, self.OnClose)
108    
109        def Subscribe(self, channel, *args):
110            """Subscribe a function to a message channel.
111    
112            If channel is one of the delegated messages call the appropriate
113            object's Subscribe method. Otherwise do nothing.
114            """
115            if channel in self.delegated_messages:
116                object = getattr(self, self.delegated_messages[channel])
117                object.Subscribe(channel, *args)
118            else:
119                print "Trying to subscribe to unsupported channel %s" % channel
120    
121        def Unsubscribe(self, channel, *args):
122            """Unsubscribe a function from a message channel.
123    
124            If channel is one of the delegated messages call the appropriate
125            object's Unsubscribe method. Otherwise do nothing.
126            """
127            if channel in self.delegated_messages:
128                object = getattr(self, self.delegated_messages[channel])
129                object.Unsubscribe(channel, *args)
130    
131        def __getattr__(self, attr):
132            """If attr is one of the delegated methods return that method
133    
134            Otherwise raise AttributeError.
135            """
136            if attr in self.delegated_methods:
137                return getattr(getattr(self, self.delegated_methods[attr]), attr)
138            raise AttributeError(attr)
139    
140      def init_ids(self):      def init_ids(self):
141          """Initialize the ids"""          """Initialize the ids"""
142          self.current_id = 6000          self.current_id = 6000
# Line 168  class MainWindow(wxFrame): Line 231  class MainWindow(wxFrame):
231                              command.IsCheckCommand())                              command.IsCheckCommand())
232                  self.bind_command_events(command, ID)                  self.bind_command_events(command, ID)
233              else:              else:
234                  print "Unknown command %s" % name                  print _("Unknown command %s") % name
235    
236      def add_toolbar_command(self, toolbar, name):      def add_toolbar_command(self, toolbar, name):
237          """Add the command with name name to the toolbar toolbar.          """Add the command with name name to the toolbar toolbar.
# Line 183  class MainWindow(wxFrame): Line 246  class MainWindow(wxFrame):
246              command = registry.Command(name)              command = registry.Command(name)
247              if command is not None:              if command is not None:
248                  ID = self.get_id(name)                  ID = self.get_id(name)
249                  filename = os.path.join(bitmapdir, command.Icon()) + bitmapext                  bitmap = resource.GetBitmapResource(command.Icon(),
250                  bitmap = wxBitmap(filename, wxBITMAP_TYPE_XPM)                                                      wxBITMAP_TYPE_XPM)
251                  toolbar.AddTool(ID, bitmap,                  toolbar.AddTool(ID, bitmap,
252                                  shortHelpString = command.HelpText(),                                  shortHelpString = command.HelpText(),
253                                  isToggle = command.IsCheckCommand())                                  isToggle = command.IsCheckCommand())
254                  self.bind_command_events(command, ID)                  self.bind_command_events(command, ID)
255              else:              else:
256                  print "Unknown command %s" % name                  print _("Unknown command %s") % name
257    
258      def Context(self):      def Context(self):
259          """Return the context object for a command invoked from this window          """Return the context object for a command invoked from this window
# Line 203  class MainWindow(wxFrame): Line 266  class MainWindow(wxFrame):
266              command = registry.Command(name)              command = registry.Command(name)
267              command.Execute(self.Context())              command.Execute(self.Context())
268          else:          else:
269              print "Unknown command ID %d" % event.GetId()              print _("Unknown command ID %d") % event.GetId()
270    
271      def update_command_ui(self, event):      def update_command_ui(self, event):
272          #print "update_command_ui", self.id_to_name[event.GetId()]          #print "update_command_ui", self.id_to_name[event.GetId()]
273          context = self.Context()          context = self.Context()
274          command = registry.Command(self.id_to_name[event.GetId()])          command = registry.Command(self.id_to_name[event.GetId()])
275          if command is not None:          if command is not None:
276              event.Enable(command.Sensitive(context))              sensitive = command.Sensitive(context)
277                event.Enable(sensitive)
278                if command.IsTool() and not sensitive and command.Checked(context):
279                    # When a checked tool command is disabled deselect all
280                    # tools. Otherwise the tool would remain active but it
281                    # might lead to errors if the tools stays active. This
282                    # problem occurred in GREAT-ER and this fixes it, but
283                    # it's not clear to me whether this is really the best
284                    # way to do it (BH, 20021206).
285                    self.canvas.SelectTool(None)
286              event.SetText(command.DynText(context))              event.SetText(command.DynText(context))
287              if command.IsCheckCommand():              if command.IsCheckCommand():
288                  event.Check(command.Checked(context))                      event.Check(command.Checked(context))
289    
290      def RunMessageBox(self, title, text, flags = wxOK | wxICON_INFORMATION):      def RunMessageBox(self, title, text, flags = wxOK | wxICON_INFORMATION):
291          """Run a modal message box with the given text, title and flags          """Run a modal message box with the given text, title and flags
# Line 233  class MainWindow(wxFrame): Line 305  class MainWindow(wxFrame):
305    
306      def add_dialog(self, name, dialog):      def add_dialog(self, name, dialog):
307          if self.dialogs.has_key(name):          if self.dialogs.has_key(name):
308              raise RuntimeError("The Dialog named %s is already open" % name)              raise RuntimeError(_("The Dialog named %s is already open") % name)
309          self.dialogs[name] = dialog          self.dialogs[name] = dialog
310    
311      def dialog_open(self, name):      def dialog_open(self, name):
# Line 275  class MainWindow(wxFrame): Line 347  class MainWindow(wxFrame):
347              flags = wxYES_NO | wxICON_QUESTION              flags = wxYES_NO | wxICON_QUESTION
348              if can_veto:              if can_veto:
349                  flags = flags | wxCANCEL                  flags = flags | wxCANCEL
350              result = self.RunMessageBox("Exit",              result = self.RunMessageBox(_("Exit"),
351                                          ("The session has been modified."                                          _("The session has been modified."
352                                           " Do you want to save it?"),                                           " Do you want to save it?"),
353                                          flags)                                          flags)
354              if result == wxID_YES:              if result == wxID_YES:
# Line 285  class MainWindow(wxFrame): Line 357  class MainWindow(wxFrame):
357              result = wxID_NO              result = wxID_NO
358          return result          return result
359    
360        def prepare_new_session(self):
361            for d in self.dialogs.values():
362                if not isinstance(d, tree.SessionTreeView):
363                    d.Close()
364    
365      def NewSession(self):      def NewSession(self):
366          self.save_modified_session()          if self.save_modified_session() != wxID_CANCEL:
367          self.application.SetSession(create_empty_session())              self.prepare_new_session()
368                self.application.SetSession(create_empty_session())
369    
370      def OpenSession(self):      def OpenSession(self):
371          self.save_modified_session()          if self.save_modified_session() != wxID_CANCEL:
372          dlg = wxFileDialog(self, "Select a session file", ".", "",              dlg = wxFileDialog(self, _("Open Session"), ".", "",
373                             "*.thuban", wxOPEN)                                 "Thuban Session File (*.thuban)|*.thuban",
374          if dlg.ShowModal() == wxID_OK:                                 wxOPEN)
375              self.application.OpenSession(dlg.GetPath())              if dlg.ShowModal() == wxID_OK:
376          dlg.Destroy()                  self.prepare_new_session()
377                    self.application.OpenSession(dlg.GetPath())
378                dlg.Destroy()
379    
380      def SaveSession(self):      def SaveSession(self):
381          if self.application.session.filename == None:          if self.application.session.filename == None:
382              self.SaveSessionAs()              self.SaveSessionAs()
383          self.application.SaveSession()          else:
384                self.application.SaveSession()
385    
386      def SaveSessionAs(self):      def SaveSessionAs(self):
387          dlg = wxFileDialog(self, "Enter a filename for session", ".", "",          dlg = wxFileDialog(self, _("Save Session As"), ".", "",
388                             "*.thuban", wxOPEN)                             "Thuban Session File (*.thuban)|*.thuban",
389                               wxSAVE|wxOVERWRITE_PROMPT)
390          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wxID_OK:
391              self.application.session.SetFilename(dlg.GetPath())              self.application.session.SetFilename(dlg.GetPath())
392              self.application.SaveSession()              self.application.SaveSession()
393          dlg.Destroy()          dlg.Destroy()
394    
395      def Exit(self):      def Exit(self):
396          self.Close(false)          self.Close(False)
397    
398      def OnClose(self, event):      def OnClose(self, event):
399          result = self.save_modified_session(can_veto = event.CanVeto())          result = self.save_modified_session(can_veto = event.CanVeto())
# Line 322  class MainWindow(wxFrame): Line 404  class MainWindow(wxFrame):
404              # wx's destroy event, but that isn't implemented for wxGTK              # wx's destroy event, but that isn't implemented for wxGTK
405              # yet.              # yet.
406              self.canvas.Unsubscribe(VIEW_POSITION, self.view_position_changed)              self.canvas.Unsubscribe(VIEW_POSITION, self.view_position_changed)
407                DockFrame.OnClose(self, event)
408                for dlg in self.dialogs.values():
409                    dlg.Destroy()
410                self.canvas.Destroy()
411              self.Destroy()              self.Destroy()
412    
413      def SetMap(self, map):      def SetMap(self, map):
414          self.canvas.SetMap(map)          self.canvas.SetMap(map)
415            self.__SetTitle(map.Title())
416    
417            dialog = self.FindRegisteredDock("legend")
418            if dialog is not None:
419                dialog.GetPanel().SetMap(self.Map())
420    
421      def Map(self):      def Map(self):
422          """Return the map displayed by this mainwindow"""          """Return the map displayed by this mainwindow"""
423    
424          return self.canvas.Map()          return self.canvas.Map()
425    
426      def ShowSessionTree(self):      def ToggleSessionTree(self):
427            """If the session tree is shown close it otherwise create a new tree"""
428          name = "session_tree"          name = "session_tree"
429          dialog = self.get_open_dialog(name)          dialog = self.get_open_dialog(name)
430          if dialog is None:          if dialog is None:
431              dialog = tree.SessionTreeView(self, self.application, name)              dialog = tree.SessionTreeView(self, self.application, name)
432              self.add_dialog(name, dialog)              self.add_dialog(name, dialog)
433              dialog.Show(true)              dialog.Show(True)
434          else:          else:
435              # FIXME: bring dialog to front here              dialog.Close()
436              pass  
437        def SessionTreeShown(self):
438            """Return true iff the session tree is currently shown"""
439            return self.get_open_dialog("session_tree") is not None
440    
441      def About(self):      def About(self):
442          self.RunMessageBox("About",          self.RunMessageBox(_("About"),
443                             ("Thuban is a program for\n"                             _("Thuban %s\n"
444                                #"Build Date: %s\n"
445                                "using:\n"
446                                "  %s\n"
447                                "  %s\n\n"
448                                "Thuban is a program for\n"
449                              "exploring geographic data.\n"                              "exploring geographic data.\n"
450                              "Copyright (C) 2001 Intevation GmbH.\n"                              "Copyright (C) 2001-2003 Intevation GmbH.\n"
451                              "Thuban is licensed under the GPL"),                              "Thuban is licensed under the GNU GPL"
452                                % (Thuban.version.longversion,
453                                   "wxPython %s" % wxPython_version,
454                                   "Python %d.%d.%d" % sys.version_info[:3]
455                                  )),
456    #                           % __ThubanVersion__), #__BuildDate__)),
457                             wxOK | wxICON_INFORMATION)                             wxOK | wxICON_INFORMATION)
458    
459      def AddLayer(self):      def AddLayer(self):
460          dlg = wxFileDialog(self, "Select a data file", ".", "", "*.*",          dlg = wxFileDialog(self, _("Select a data file"), ".", "", "*.*",
461                             wxOPEN)                             wxOPEN)
462          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wxID_OK:
463              filename = dlg.GetPath()              filename = dlg.GetPath()
464              title = os.path.splitext(os.path.basename(filename))[0]              title = os.path.splitext(os.path.basename(filename))[0]
             layer = Layer(title, filename)  
465              map = self.canvas.Map()              map = self.canvas.Map()
466              has_layers = map.HasLayers()              has_layers = map.HasLayers()
467              try:              try:
468                    store = self.application.Session().OpenShapefile(filename)
469                except IOError:
470                    # the layer couldn't be opened
471                    self.RunMessageBox(_("Add Layer"),
472                                       _("Can't open the file '%s'.") % filename)
473                else:
474                    layer = Layer(title, store)
475                  map.AddLayer(layer)                  map.AddLayer(layer)
476                    if not has_layers:
477                        # if we're adding a layer to an empty map, fit the
478                        # new map to the window
479                        self.canvas.FitMapToWindow()
480            dlg.Destroy()
481    
482        def AddRasterLayer(self):
483            dlg = wxFileDialog(self, _("Select an image file"), ".", "", "*.*",
484                               wxOPEN)
485            if dlg.ShowModal() == wxID_OK:
486                filename = dlg.GetPath()
487                title = os.path.splitext(os.path.basename(filename))[0]
488                map = self.canvas.Map()
489                has_layers = map.HasLayers()
490                try:
491                    layer = RasterLayer(title, filename)
492              except IOError:              except IOError:
493                  # the layer couldn't be opened                  # the layer couldn't be opened
494                  self.RunMessageBox("Add Layer",                  self.RunMessageBox(_("Add Image Layer"),
495                                     "Can't open the file '%s'." % filename)                                     _("Can't open the file '%s'.") % filename)
496              else:              else:
497                    map.AddLayer(layer)
498                  if not has_layers:                  if not has_layers:
499                      # if we're adding a layer to an empty map, for the                      # if we're adding a layer to an empty map, fit the
500                      # new map to the window                      # new map to the window
501                      self.canvas.FitMapToWindow()                      self.canvas.FitMapToWindow()
502          dlg.Destroy()          dlg.Destroy()
# Line 380  class MainWindow(wxFrame): Line 509  class MainWindow(wxFrame):
509      def CanRemoveLayer(self):      def CanRemoveLayer(self):
510          """Return true if the currently selected layer can be deleted.          """Return true if the currently selected layer can be deleted.
511    
512          If no layer is selected return false.          If no layer is selected return False.
513    
514          The return value of this method determines whether the remove          The return value of this method determines whether the remove
515          layer command is sensitive in menu.          layer command is sensitive in menu.
# Line 388  class MainWindow(wxFrame): Line 517  class MainWindow(wxFrame):
517          layer = self.current_layer()          layer = self.current_layer()
518          if layer is not None:          if layer is not None:
519              return self.canvas.Map().CanRemoveLayer(layer)              return self.canvas.Map().CanRemoveLayer(layer)
520          return 0          return False
521    
522      def RaiseLayer(self):      def RaiseLayer(self):
523          layer = self.current_layer()          layer = self.current_layer()
# Line 405  class MainWindow(wxFrame): Line 534  class MainWindow(wxFrame):
534    
535          If no layer is selected, return None          If no layer is selected, return None
536          """          """
537          return self.interactor.SelectedLayer()          return self.canvas.SelectedLayer()
538    
539      def has_selected_layer(self):      def has_selected_layer(self):
540          """Return true if a layer is currently selected"""          """Return true if a layer is currently selected"""
541          return self.interactor.HasSelectedLayer()          return self.canvas.HasSelectedLayer()
   
     def choose_color(self):  
         """Run the color selection dialog and return the selected color.  
542    
543          If the user cancels, return None.      def has_selected_shapes(self):
544          """          """Return true if a shape is currently selected"""
545          dlg = wxColourDialog(self)          return self.canvas.HasSelectedShapes()
         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)  
546    
547      def HideLayer(self):      def HideLayer(self):
548          layer = self.current_layer()          layer = self.current_layer()
# Line 468  class MainWindow(wxFrame): Line 561  class MainWindow(wxFrame):
561              name = "table_view" + str(id(table))              name = "table_view" + str(id(table))
562              dialog = self.get_open_dialog(name)              dialog = self.get_open_dialog(name)
563              if dialog is None:              if dialog is None:
564                  dialog = tableview.LayerTableFrame(self, self.interactor, name,                  dialog = tableview.LayerTableFrame(self, name,
565                                                     "Table: %s" % layer.Title(),                                           _("Layer Table: %s") % layer.Title(),
566                                                     layer, table)                                           layer, table)
567                  self.add_dialog(name, dialog)                  self.add_dialog(name, dialog)
568                  dialog.Show(true)                  dialog.Show(True)
569              else:              else:
570                  # FIXME: bring dialog to front here                  # FIXME: bring dialog to front here
571                  pass                  pass
572    
573      def Projection(self):      def MapProjection(self):
574          map = self.canvas.Map()  
575          proj = map.projection          name = "map_projection"
576          if proj is None:          dialog = self.get_open_dialog(name)
577              proj4Dlg = proj4dialog.Proj4Dialog(NULL, None, map.BoundingBox())  
578            if dialog is None:
579                map = self.canvas.Map()
580                dialog = projdialog.ProjFrame(self, name,
581                         _("Map Projection: %s") % map.Title(), map)
582                self.add_dialog(name, dialog)
583                dialog.Show()
584            dialog.Raise()
585    
586        def LayerProjection(self):
587    
588            layer = self.current_layer()
589    
590            name = "layer_projection" + str(id(layer))
591            dialog = self.get_open_dialog(name)
592    
593            if dialog is None:
594                map = self.canvas.Map()
595                dialog = projdialog.ProjFrame(self, name,
596                         _("Layer Projection: %s") % layer.Title(), layer)
597                self.add_dialog(name, dialog)
598                dialog.Show()
599            dialog.Raise()
600    
601        def LayerEditProperties(self):
602    
603            #
604            # the menu option for this should only be available if there
605            # is a current layer, so we don't need to check if the
606            # current layer is None
607            #
608    
609            layer = self.current_layer()
610            self.OpenLayerProperties(layer)
611    
612        def OpenLayerProperties(self, layer, group = None):
613            name = "layer_properties" + str(id(layer))
614            dialog = self.get_open_dialog(name)
615    
616            if dialog is None:
617                dialog = Classifier(self, name, layer, group)
618                self.add_dialog(name, dialog)
619                dialog.Show()
620            dialog.Raise()
621    
622        def LayerJoinTable(self):
623            layer = self.canvas.SelectedLayer()
624            if layer is not None:
625                dlg = JoinDialog(self, _("Join Layer with Table"),
626                                 self.application.session,
627                                 layer = layer)
628                dlg.ShowModal()
629    
630        def LayerUnjoinTable(self):
631            layer = self.canvas.SelectedLayer()
632            if layer is not None:
633                orig_store = layer.ShapeStore().OrigShapeStore()
634                if orig_store:
635                    layer.SetShapeStore(orig_store)
636    
637        def ShowLegend(self):
638            if not self.LegendShown():
639                self.ToggleLegend()
640    
641        def ToggleLegend(self):
642            """Show the legend if it's not shown otherwise hide it again"""
643            name = "legend"
644            dialog = self.FindRegisteredDock(name)
645    
646            if dialog is None:
647                dialog = self.CreateDock(name, -1, _("Legend"), wxLAYOUT_LEFT)
648                legend.LegendPanel(dialog, None, self)
649                dialog.Dock()
650                dialog.GetPanel().SetMap(self.Map())
651                dialog.Show()
652          else:          else:
653              proj4Dlg = proj4dialog.Proj4Dialog(NULL, map.projection.params,              dialog.Show(not dialog.IsShown())
654                                                 map.BoundingBox())  
655          if proj4Dlg.ShowModal() == wxID_OK:      def LegendShown(self):
656              params = proj4Dlg.GetParams()          """Return true iff the legend is currently open"""
657              if params is not None:          dialog = self.FindRegisteredDock("legend")
658                  proj = Projection(params)          return dialog is not None and dialog.IsShown()
659    
660        def TableOpen(self):
661            dlg = wxFileDialog(self, _("Open Table"), ".", "",
662                               _("DBF Files (*.dbf)") + "|*.dbf|" +
663                               #_("CSV Files (*.csv)") + "|*.csv|" +
664                               _("All Files (*.*)") + "|*.*",
665                               wxOPEN)
666            if dlg.ShowModal() == wxID_OK:
667                filename = dlg.GetPath()
668                dlg.Destroy()
669                try:
670                    table = self.application.session.OpenTableFile(filename)
671                except IOError:
672                    # the layer couldn't be opened
673                    self.RunMessageBox(_("Open Table"),
674                                       _("Can't open the file '%s'.") % filename)
675              else:              else:
676                  proj = None                  self.ShowTableView(table)
677              map.SetProjection(proj)  
678          proj4Dlg.Destroy()      def TableClose(self):
679            tables = self.application.session.UnreferencedTables()
680    
681            dlg = wxMultipleChoiceDialog(self, _("Pick the tables to close:"),
682                                         _("Close Table"),
683                                         [t.Title() for t in tables],
684                                         size = (400, 300), style=wxRESIZE_BORDER)
685            if dlg.ShowModal() == wxID_OK:
686                for i in dlg.GetValue():
687                    self.application.session.RemoveTable(tables[i])
688    
689    
690        def TableShow(self):
691            """Offer a multi-selection dialog for tables to be displayed
692    
693            The windows for the selected tables are opened or brought to
694            the front.
695            """
696            tables = self.application.session.Tables()
697    
698            dlg = wxMultipleChoiceDialog(self, _("Pick the table to show:"),
699                                         _("Show Table"),
700                                         [t.Title() for t in tables],
701                                         size = (400,300),
702                                         style = wxDEFAULT_DIALOG_STYLE |
703                                                 wxRESIZE_BORDER)
704            if (dlg.ShowModal() == wxID_OK):
705                for i in dlg.GetValue():
706                    # XXX: if the table belongs to a layer, open a
707                    # LayerTableFrame instead of QueryTableFrame
708                    self.ShowTableView(tables[i])
709    
710        def TableJoin(self):
711            dlg = JoinDialog(self, _("Join Tables"), self.application.session)
712            dlg.ShowModal()
713    
714        def ShowTableView(self, table):
715            """Open a table view for the table and optionally"""
716            name = "table_view%d" % id(table)
717            dialog = self.get_open_dialog(name)
718            if dialog is None:
719                dialog = tableview.QueryTableFrame(self, name,
720                                                   _("Table: %s") % table.Title(),
721                                                   table)
722                self.add_dialog(name, dialog)
723                dialog.Show(True)
724            # FIXME: else bring dialog to front
725    
726      def ZoomInTool(self):      def ZoomInTool(self):
727          self.canvas.ZoomInTool()          self.canvas.ZoomInTool()
# Line 513  class MainWindow(wxFrame): Line 742  class MainWindow(wxFrame):
742      def FullExtent(self):      def FullExtent(self):
743          self.canvas.FitMapToWindow()          self.canvas.FitMapToWindow()
744    
745        def FullLayerExtent(self):
746            self.canvas.FitLayerToWindow(self.current_layer())
747    
748        def FullSelectionExtent(self):
749            self.canvas.FitSelectedToWindow()
750    
751        def ExportMap(self):
752            self.canvas.Export()
753    
754      def PrintMap(self):      def PrintMap(self):
755          self.canvas.Print()          self.canvas.Print()
756    
757      def identify_view_on_demand(self, layer, shape):      def RenameMap(self):
758            dlg = wxTextEntryDialog(self, "Map Title: ", "Rename Map",
759                                    self.Map().Title())
760            if dlg.ShowModal() == wxID_OK:
761                title = dlg.GetValue()
762                if title != "":
763                    self.Map().SetTitle(title)
764                    self.__SetTitle(title)
765    
766            dlg.Destroy()
767    
768        def identify_view_on_demand(self, layer, shapes):
769            """Subscribed to the canvas' SHAPES_SELECTED message
770    
771            If the current tool is the identify tool, at least one shape is
772            selected and the identify dialog is not shown, show the dialog.
773            """
774            # If the selection has become empty we don't need to do
775            # anything. Otherwise it could happen that the dialog was popped
776            # up when the selection became empty, e.g. when a new selection
777            # is opened while the identify tool is active and dialog had
778            # been closed
779            if not shapes:
780                return
781    
782          name = "identify_view"          name = "identify_view"
783          if self.canvas.CurrentTool() == "IdentifyTool":          if self.canvas.CurrentTool() == "IdentifyTool":
784              if not self.dialog_open(name):              if not self.dialog_open(name):
785                  dialog = identifyview.IdentifyView(self, self.interactor, name)                  dialog = identifyview.IdentifyView(self, name)
786                  self.add_dialog(name, dialog)                  self.add_dialog(name, dialog)
787                  dialog.Show(true)                  dialog.Show(True)
788              else:              else:
789                  # FIXME: bring dialog to front?                  # FIXME: bring dialog to front?
790                  pass                  pass
791    
792        def __SetTitle(self, title):
793            self.SetTitle("Thuban - " + title)
794    
795  #  #
796  # Define all the commands available in the main window  # Define all the commands available in the main window
797  #  #
# Line 538  def call_method(context, methodname, *ar Line 803  def call_method(context, methodname, *ar
803      apply(getattr(context.mainwindow, methodname), args)      apply(getattr(context.mainwindow, methodname), args)
804    
805  def _method_command(name, title, method, helptext = "",  def _method_command(name, title, method, helptext = "",
806                      icon = "", sensitive = None):                      icon = "", sensitive = None, checked = None):
807      """Add a command implemented by a method of the mainwindow object"""      """Add a command implemented by a method of the mainwindow object"""
808      registry.Add(Command(name, title, call_method, args=(method,),      registry.Add(Command(name, title, call_method, args=(method,),
809                           helptext = helptext, icon = icon,                           helptext = helptext, icon = icon,
810                           sensitive = sensitive))                           sensitive = sensitive, checked = checked))
811    
812  def make_check_current_tool(toolname):  def make_check_current_tool(toolname):
813      """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 558  def make_check_current_tool(toolname): Line 823  def make_check_current_tool(toolname):
823  def _tool_command(name, title, method, toolname, helptext = "",  def _tool_command(name, title, method, toolname, helptext = "",
824                    icon = "", sensitive = None):                    icon = "", sensitive = None):
825      """Add a tool command"""      """Add a tool command"""
826      registry.Add(Command(name, title, call_method, args=(method,),      registry.Add(ToolCommand(name, title, call_method, args=(method,),
827                           helptext = helptext, icon = icon,                               helptext = helptext, icon = icon,
828                           checked = make_check_current_tool(toolname),                               checked = make_check_current_tool(toolname),
829                           sensitive = sensitive))                               sensitive = sensitive))
830    
831  def _has_selected_layer(context):  def _has_selected_layer(context):
832      """Return true if a layer is selected in the context"""      """Return true if a layer is selected in the context"""
833      return context.mainwindow.has_selected_layer()      return context.mainwindow.has_selected_layer()
834    
835    def _has_selected_shapes(context):
836        """Return true if a layer is selected in the context"""
837        return context.mainwindow.has_selected_shapes()
838    
839  def _can_remove_layer(context):  def _can_remove_layer(context):
840      return context.mainwindow.CanRemoveLayer()      return context.mainwindow.CanRemoveLayer()
841    
842  def _has_tree_window_shown(context):  def _has_tree_window_shown(context):
843      """Return true if the tree window is shown"""      """Return true if the tree window is shown"""
844      return context.mainwindow.get_open_dialog("session_tree") is None      return context.mainwindow.SessionTreeShown()
845    
846  def _has_visible_map(context):  def _has_visible_map(context):
847      """Return true iff theres a visible map in the mainwindow.      """Return true iff theres a visible map in the mainwindow.
# Line 585  def _has_visible_map(context): Line 854  def _has_visible_map(context):
854                  return 1                  return 1
855      return 0      return 0
856    
857    def _has_legend_shown(context):
858        """Return true if the legend window is shown"""
859        return context.mainwindow.LegendShown()
860    
861    
862  # File menu  # File menu
863  _method_command("new_session", "&New Session", "NewSession")  _method_command("new_session", _("&New Session"), "NewSession")
864  _method_command("open_session", "&Open Session", "OpenSession")  _method_command("open_session", _("&Open Session..."), "OpenSession")
865  _method_command("save_session", "&Save Session", "SaveSession")  _method_command("save_session", _("&Save Session"), "SaveSession")
866  _method_command("save_session_as", "Save Session &As", "SaveSessionAs")  _method_command("save_session_as", _("Save Session &As..."), "SaveSessionAs")
867  _method_command("show_session_tree", "Show Session &Tree", "ShowSessionTree",  _method_command("toggle_session_tree", _("Session &Tree"), "ToggleSessionTree",
868                  sensitive = _has_tree_window_shown)                  checked = _has_tree_window_shown)
869  _method_command("exit", "E&xit", "Exit")  _method_command("toggle_legend", _("Legend"), "ToggleLegend",
870                    checked = _has_legend_shown)
871    _method_command("exit", _("E&xit"), "Exit")
872    
873  # Help menu  # Help menu
874  _method_command("help_about", "&About", "About")  _method_command("help_about", _("&About..."), "About")
875    
876    
877  # Map menu  # Map menu
878  _method_command("map_projection", "Pro&jection", "Projection")  _method_command("map_projection", _("Pro&jection..."), "MapProjection")
879    
880  _tool_command("map_zoom_in_tool", "&Zoom in", "ZoomInTool", "ZoomInTool",  _tool_command("map_zoom_in_tool", _("&Zoom in"), "ZoomInTool", "ZoomInTool",
881                helptext = "Switch to map-mode 'zoom-in'", icon = "zoom_in",                helptext = _("Switch to map-mode 'zoom-in'"), icon = "zoom_in",
882                sensitive = _has_visible_map)                sensitive = _has_visible_map)
883  _tool_command("map_zoom_out_tool", "Zoom &out", "ZoomOutTool", "ZoomOutTool",  _tool_command("map_zoom_out_tool", _("Zoom &out"), "ZoomOutTool", "ZoomOutTool",
884                helptext = "Switch to map-mode 'zoom-out'", icon = "zoom_out",                helptext = _("Switch to map-mode 'zoom-out'"), icon = "zoom_out",
885                sensitive = _has_visible_map)                sensitive = _has_visible_map)
886  _tool_command("map_pan_tool", "&Pan", "PanTool", "PanTool",  _tool_command("map_pan_tool", _("&Pan"), "PanTool", "PanTool",
887                helptext = "Switch to map-mode 'pan'", icon = "pan",                helptext = _("Switch to map-mode 'pan'"), icon = "pan",
888                sensitive = _has_visible_map)                sensitive = _has_visible_map)
889  _tool_command("map_identify_tool", "&Identify", "IdentifyTool", "IdentifyTool",  _tool_command("map_identify_tool", _("&Identify"), "IdentifyTool",
890                helptext = "Switch to map-mode 'identify'", icon = "identify",                "IdentifyTool",
891                  helptext = _("Switch to map-mode 'identify'"), icon = "identify",
892                sensitive = _has_visible_map)                sensitive = _has_visible_map)
893  _tool_command("map_label_tool", "&Label", "LabelTool", "LabelTool",  _tool_command("map_label_tool", _("&Label"), "LabelTool", "LabelTool",
894                helptext = "Add/Remove labels", icon = "label",                helptext = _("Add/Remove labels"), icon = "label",
895                sensitive = _has_visible_map)                sensitive = _has_visible_map)
896  _method_command("map_full_extent", "&Full extent", "FullExtent",  _method_command("map_full_extent", _("&Full extent"), "FullExtent",
897                 helptext = "Full Extent", icon = "fullextent",                 helptext = _("Full Extent"), icon = "fullextent",
898                sensitive = _has_visible_map)                sensitive = _has_visible_map)
899  _method_command("map_print", "Prin&t", "PrintMap", helptext = "Print the map")  _method_command("layer_full_extent", _("&Full layer extent"), "FullLayerExtent",
900                   helptext = _("Full Layer Extent"), icon = "fulllayerextent",
901                  sensitive = _has_selected_layer)
902    _method_command("selected_full_extent", _("&Full selection extent"), "FullSelectionExtent",
903                   helptext = _("Full Selection Extent"), icon = "fullselextent",
904                  sensitive = _has_selected_shapes)
905    _method_command("map_export", _("E&xport"), "ExportMap",
906                        helptext = _("Export the map to file"))
907    _method_command("map_print", _("Prin&t"), "PrintMap",
908                    helptext = _("Print the map"))
909    _method_command("map_rename", _("&Rename..."), "RenameMap",
910                    helptext = _("Rename the map"))
911    _method_command("layer_add", _("&Add Layer..."), "AddLayer",
912                    helptext = _("Add a new layer to active map"))
913    _method_command("rasterlayer_add", _("&Add Image Layer..."), "AddRasterLayer",
914                    helptext = _("Add a new image layer to active map"))
915    _method_command("layer_remove", _("&Remove Layer"), "RemoveLayer",
916                    helptext = _("Remove selected layer(s)"),
917                    sensitive = _can_remove_layer)
918    
919  # Layer menu  # Layer menu
920  _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)",  
                 sensitive = _has_selected_layer)  
 _method_command("layer_transparent_fill", "&Transparent Fill",  
                 "LayerTransparentFill",  
                 helptext = "Do not fill the selected layer(s)",  
921                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
922  _method_command("layer_outline_color", "&Outline Color", "LayerOutlineColor",  _method_command("layer_raise", _("&Raise"), "RaiseLayer",
923                  helptext = "Set the outline color of selected layer(s)",                  helptext = _("Raise selected layer(s)"),
924                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
925  _method_command("layer_no_outline", "&No Outline", "LayerNoOutline",  _method_command("layer_lower", _("&Lower"), "LowerLayer",
926                  helptext = "Do not draw the outline of the selected layer(s)",                  helptext = _("Lower selected layer(s)"),
927                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
928  _method_command("layer_raise", "&Raise", "RaiseLayer",  _method_command("layer_show", _("&Show"), "ShowLayer",
929                  helptext = "Raise selected layer(s)",                  helptext = _("Make selected layer(s) visible"),
930                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
931  _method_command("layer_lower", "&Lower", "LowerLayer",  _method_command("layer_hide", _("&Hide"), "HideLayer",
932                  helptext = "Lower selected layer(s)",                  helptext = _("Make selected layer(s) unvisible"),
933                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
934  _method_command("layer_show", "&Show", "ShowLayer",  _method_command("layer_show_table", _("Show Ta&ble"), "LayerShowTable",
935                  helptext = "Make selected layer(s) visible",                  helptext = _("Show the selected layer's table"),
936                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
937  _method_command("layer_hide", "&Hide", "HideLayer",  _method_command("layer_properties", _("&Properties..."), "LayerEditProperties",
                 helptext = "Make selected layer(s) unvisible",  
938                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
939  _method_command("layer_show_table", "Show Ta&ble", "LayerShowTable",  _method_command("layer_jointable", _("&Join Table..."), "LayerJoinTable",
                 helptext = "Show the selected layer's table",  
940                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
941    
942    def _can_unjoin(context):
943        layer = context.mainwindow.SelectedLayer()
944        return bool(layer and layer.ShapeStore().OrigShapeStore() is not None)
945    _method_command("layer_unjointable", _("&Unjoin Table..."), "LayerUnjoinTable",
946                    sensitive = _can_unjoin)
947    
948    # Table menu
949    _method_command("table_open", _("&Open..."), "TableOpen")
950    _method_command("table_close", _("&Close"), "TableClose",
951           sensitive = lambda context: bool(context.session.UnreferencedTables()))
952    _method_command("table_show", _("&Show"), "TableShow")
953    _method_command("table_join", _("&Join..."), "TableJoin")
954    
955  # the menu structure  #  Export only under Windows ...
956  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",  
957                          None,                          None,
958                          "map_projection",                          "map_projection",
959                          None,                          None,
960                          "map_zoom_in_tool", "map_zoom_out_tool",                          "map_zoom_in_tool", "map_zoom_out_tool",
961                          "map_pan_tool", "map_identify_tool", "map_label_tool",                          "map_pan_tool",
962                          None,                          "map_full_extent",
963                          "map_full_extent",                          "layer_full_extent",
964                            "selected_full_extent",
965                          None,                          None,
966                          "map_print"]),                          "map_identify_tool", "map_label_tool",
                   Menu("layer", "&Layer",  
                        ["layer_fill_color", "layer_transparent_fill",  
                         "layer_outline_color", "layer_no_outline",  
967                          None,                          None,
968                          "layer_raise", "layer_lower",                          "toggle_legend",
969                            None]
970    if wxPlatform == '__WXMSW__':
971        map_menu.append("map_export")
972    map_menu.append("map_print")
973    
974    # the menu structure
975    main_menu = Menu("<main>", "<main>",
976                     [Menu("file", _("&File"),
977                           ["new_session", "open_session", None,
978                            "save_session", "save_session_as", None,
979                            "toggle_session_tree", None,
980                            "exit"]),
981                      Menu("map", _("&Map"), map_menu),
982                      Menu("layer", _("&Layer"),
983                            ["layer_raise", "layer_lower",
984                          None,                          None,
985                          "layer_show", "layer_hide",                          "layer_show", "layer_hide",
986                          None,                          None,
987                          "layer_show_table"]),                          "layer_projection",
988                    Menu("help", "&Help",                          None,
989                            "layer_show_table",
990                            "layer_jointable",
991                            "layer_unjointable",
992                            None,
993                            "layer_properties"]),
994                      Menu("table", _("&Table"),
995                           ["table_open", "table_close",
996                           None,
997                           "table_show",
998                           None,
999                           "table_join"]),
1000                      Menu("help", _("&Help"),
1001                         ["help_about"])])                         ["help_about"])])
1002    
1003  # the main toolbar  # the main toolbar
1004    
1005  main_toolbar = Menu("<toolbar>", "<toolbar>",  main_toolbar = Menu("<toolbar>", "<toolbar>",
1006                      ["map_zoom_in_tool", "map_zoom_out_tool", "map_pan_tool",                      ["map_zoom_in_tool", "map_zoom_out_tool", "map_pan_tool",
1007                       "map_identify_tool", "map_label_tool", "map_full_extent"])                       "map_full_extent",
1008                         "layer_full_extent",
1009                         "selected_full_extent",
1010                         None,
1011                         "map_identify_tool", "map_label_tool"])
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