/[thuban]/branches/WIP-pyshapelib-bramz/Thuban/UI/mainwindow.py
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revision 310 by bh, Tue Sep 10 16:45:22 2002 UTC revision 1072 by bh, Tue May 27 16:47:48 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                             "SelectedShapes": "canvas",
68                             }
69    
70      def __init__(self, parent, ID, title, application, interactor,      def __init__(self, parent, ID, title, application, interactor,
71                   initial_message = None, size = wxSize(-1, -1)):                   initial_message = None, size = wxSize(-1, -1)):
72          wxFrame.__init__(self, parent, ID, title, wxDefaultPosition, size)          DockFrame.__init__(self, parent, ID, title, wxDefaultPosition, size)
73            #wxFrame.__init__(self, parent, ID, title, wxDefaultPosition, size)
74    
75          self.application = application          self.application = application
         self.interactor = interactor  
76    
77          self.CreateStatusBar()          self.CreateStatusBar()
78          if initial_message:          if initial_message:
# Line 63  class MainWindow(wxFrame): Line 90  class MainWindow(wxFrame):
90          # call Realize to make sure that the tools appear.          # call Realize to make sure that the tools appear.
91          toolbar.Realize()          toolbar.Realize()
92    
93    
94          # Create the map canvas          # Create the map canvas
95          canvas = view.MapCanvas(self, -1, interactor)          canvas = view.MapCanvas(self, -1)
96          canvas.Subscribe(VIEW_POSITION, self.view_position_changed)          canvas.Subscribe(VIEW_POSITION, self.view_position_changed)
97            canvas.Subscribe(SHAPES_SELECTED, self.identify_view_on_demand)
98          self.canvas = canvas          self.canvas = canvas
99    
100          self.init_dialogs()          self.SetMainWindow(self.canvas)
101    
102          interactor.Subscribe(SELECTED_SHAPE, self.identify_view_on_demand)          self.SetAutoLayout(True)
103    
104            self.init_dialogs()
105    
106          EVT_CLOSE(self, self.OnClose)          EVT_CLOSE(self, self.OnClose)
107    
108        def Subscribe(self, channel, *args):
109            """Subscribe a function to a message channel.
110    
111            If channel is one of the delegated messages call the appropriate
112            object's Subscribe method. Otherwise do nothing.
113            """
114            if channel in self.delegated_messages:
115                object = getattr(self, self.delegated_messages[channel])
116                object.Subscribe(channel, *args)
117            else:
118                print "Trying to subscribe to unsupported channel %s" % channel
119    
120        def Unsubscribe(self, channel, *args):
121            """Unsubscribe a function from a message channel.
122    
123            If channel is one of the delegated messages call the appropriate
124            object's Unsubscribe method. Otherwise do nothing.
125            """
126            if channel in self.delegated_messages:
127                object = getattr(self, self.delegated_messages[channel])
128                object.Unsubscribe(channel, *args)
129    
130        def __getattr__(self, attr):
131            """If attr is one of the delegated methods return that method
132    
133            Otherwise raise AttributeError.
134            """
135            if attr in self.delegated_methods:
136                return getattr(getattr(self, self.delegated_methods[attr]), attr)
137            raise AttributeError(attr)
138    
139      def init_ids(self):      def init_ids(self):
140          """Initialize the ids"""          """Initialize the ids"""
141          self.current_id = 6000          self.current_id = 6000
# Line 112  class MainWindow(wxFrame): Line 174  class MainWindow(wxFrame):
174          return menu_bar          return menu_bar
175    
176      def build_menu(self, menudesc):      def build_menu(self, menudesc):
177          """Build and return a wxMenu from a menudescription"""          """Return a wxMenu built from the menu description menudesc"""
178          wxmenu = wxMenu()          wxmenu = wxMenu()
179          last = None          last = None
180          for item in menudesc.items:          for item in menudesc.items:
             # here the items must all be Menu instances themselves  
181              if item is None:              if item is None:
182                  # a separator. Only add one if the last item was not a                  # a separator. Only add one if the last item was not a
183                  # separator                  # separator
# Line 169  class MainWindow(wxFrame): Line 230  class MainWindow(wxFrame):
230                              command.IsCheckCommand())                              command.IsCheckCommand())
231                  self.bind_command_events(command, ID)                  self.bind_command_events(command, ID)
232              else:              else:
233                  print "Unknown command %s" % name                  print _("Unknown command %s") % name
234    
235      def add_toolbar_command(self, toolbar, name):      def add_toolbar_command(self, toolbar, name):
236          """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 245  class MainWindow(wxFrame):
245              command = registry.Command(name)              command = registry.Command(name)
246              if command is not None:              if command is not None:
247                  ID = self.get_id(name)                  ID = self.get_id(name)
248                  filename = os.path.join(bitmapdir, command.Icon()) + bitmapext                  bitmap = resource.GetBitmapResource(command.Icon(),
249                  bitmap = wxBitmap(filename, wxBITMAP_TYPE_XPM)                                                      wxBITMAP_TYPE_XPM)
250                  toolbar.AddTool(ID, bitmap,                  toolbar.AddTool(ID, bitmap,
251                                  shortHelpString = command.HelpText(),                                  shortHelpString = command.HelpText(),
252                                  isToggle = command.IsCheckCommand())                                  isToggle = command.IsCheckCommand())
253                  self.bind_command_events(command, ID)                  self.bind_command_events(command, ID)
254              else:              else:
255                  print "Unknown command %s" % name                  print _("Unknown command %s") % name
256    
257      def Context(self):      def Context(self):
258          """Return the context object for a command invoked from this window          """Return the context object for a command invoked from this window
# Line 204  class MainWindow(wxFrame): Line 265  class MainWindow(wxFrame):
265              command = registry.Command(name)              command = registry.Command(name)
266              command.Execute(self.Context())              command.Execute(self.Context())
267          else:          else:
268              print "Unknown command ID %d" % event.GetId()              print _("Unknown command ID %d") % event.GetId()
269    
270      def update_command_ui(self, event):      def update_command_ui(self, event):
271          #print "update_command_ui", self.id_to_name[event.GetId()]          #print "update_command_ui", self.id_to_name[event.GetId()]
272          context = self.Context()          context = self.Context()
273          command = registry.Command(self.id_to_name[event.GetId()])          command = registry.Command(self.id_to_name[event.GetId()])
274          if command is not None:          if command is not None:
275              event.Enable(command.Sensitive(context))              sensitive = command.Sensitive(context)
276                event.Enable(sensitive)
277                if command.IsTool() and not sensitive and command.Checked(context):
278                    # When a checked tool command is disabled deselect all
279                    # tools. Otherwise the tool would remain active but it
280                    # might lead to errors if the tools stays active. This
281                    # problem occurred in GREAT-ER and this fixes it, but
282                    # it's not clear to me whether this is really the best
283                    # way to do it (BH, 20021206).
284                    self.canvas.SelectTool(None)
285              event.SetText(command.DynText(context))              event.SetText(command.DynText(context))
286              if command.IsCheckCommand():              if command.IsCheckCommand():
287                  event.Check(command.Checked(context))                      event.Check(command.Checked(context))
288    
289      def RunMessageBox(self, title, text, flags = wxOK | wxICON_INFORMATION):      def RunMessageBox(self, title, text, flags = wxOK | wxICON_INFORMATION):
290          """Run a modal message box with the given text, title and flags          """Run a modal message box with the given text, title and flags
291          and return the result"""          and return the result"""
292          dlg = wxMessageDialog(self, text, title, flags)          dlg = wxMessageDialog(self, text, title, flags)
293            dlg.CenterOnParent()
294          result = dlg.ShowModal()          result = dlg.ShowModal()
295          dlg.Destroy()          dlg.Destroy()
296          return result          return result
# Line 233  class MainWindow(wxFrame): Line 304  class MainWindow(wxFrame):
304    
305      def add_dialog(self, name, dialog):      def add_dialog(self, name, dialog):
306          if self.dialogs.has_key(name):          if self.dialogs.has_key(name):
307              raise RuntimeError("The Dialog named %s is already open" % name)              raise RuntimeError(_("The Dialog named %s is already open") % name)
308          self.dialogs[name] = dialog          self.dialogs[name] = dialog
309    
310      def dialog_open(self, name):      def dialog_open(self, name):
# Line 251  class MainWindow(wxFrame): Line 322  class MainWindow(wxFrame):
322              text = "(%10.10g, %10.10g)" % pos              text = "(%10.10g, %10.10g)" % pos
323          else:          else:
324              text = ""              text = ""
325            self.set_position_text(text)
326    
327        def set_position_text(self, text):
328            """Set the statusbar text showing the current position.
329    
330            By default the text is shown in field 0 of the status bar.
331            Override this method in derived classes to put it into a
332            different field of the statusbar.
333            """
334          self.SetStatusText(text)          self.SetStatusText(text)
335    
336      def save_modified_session(self, can_veto = 1):      def save_modified_session(self, can_veto = 1):
# Line 266  class MainWindow(wxFrame): Line 346  class MainWindow(wxFrame):
346              flags = wxYES_NO | wxICON_QUESTION              flags = wxYES_NO | wxICON_QUESTION
347              if can_veto:              if can_veto:
348                  flags = flags | wxCANCEL                  flags = flags | wxCANCEL
349              result = self.RunMessageBox("Exit",              result = self.RunMessageBox(_("Exit"),
350                                          ("The session has been modified."                                          _("The session has been modified."
351                                           " Do you want to save it?"),                                           " Do you want to save it?"),
352                                          flags)                                          flags)
353              if result == wxID_YES:              if result == wxID_YES:
# Line 276  class MainWindow(wxFrame): Line 356  class MainWindow(wxFrame):
356              result = wxID_NO              result = wxID_NO
357          return result          return result
358    
359        def prepare_new_session(self):
360            for d in self.dialogs.values():
361                if not isinstance(d, tree.SessionTreeView):
362                    d.Close()
363    
364      def NewSession(self):      def NewSession(self):
365          self.save_modified_session()          if self.save_modified_session() != wxID_CANCEL:
366          self.application.SetSession(create_empty_session())              self.prepare_new_session()
367                self.application.SetSession(create_empty_session())
368    
369      def OpenSession(self):      def OpenSession(self):
370          self.save_modified_session()          if self.save_modified_session() != wxID_CANCEL:
371          dlg = wxFileDialog(self, "Select a session file", ".", "",              dlg = wxFileDialog(self, _("Open Session"), ".", "",
372                             "*.thuban", wxOPEN)                                 "Thuban Session File (*.thuban)|*.thuban",
373          if dlg.ShowModal() == wxID_OK:                                 wxOPEN)
374              self.application.OpenSession(dlg.GetPath())              if dlg.ShowModal() == wxID_OK:
375          dlg.Destroy()                  self.prepare_new_session()
376                    self.application.OpenSession(dlg.GetPath())
377                dlg.Destroy()
378    
379      def SaveSession(self):      def SaveSession(self):
380          if self.application.session.filename == None:          if self.application.session.filename == None:
381              self.SaveSessionAs()              self.SaveSessionAs()
382          self.application.SaveSession()          else:
383                self.application.SaveSession()
384    
385      def SaveSessionAs(self):      def SaveSessionAs(self):
386          dlg = wxFileDialog(self, "Enter a filename for session", ".", "",          dlg = wxFileDialog(self, _("Save Session As"), ".", "",
387                             "*.thuban", wxOPEN)                             "Thuban Session File (*.thuban)|*.thuban",
388                               wxSAVE|wxOVERWRITE_PROMPT)
389          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wxID_OK:
390              self.application.session.SetFilename(dlg.GetPath())              self.application.session.SetFilename(dlg.GetPath())
391              self.application.SaveSession()              self.application.SaveSession()
392          dlg.Destroy()          dlg.Destroy()
393    
394      def Exit(self):      def Exit(self):
395          self.Close(false)          self.Close(False)
396    
397      def OnClose(self, event):      def OnClose(self, event):
398          result = self.save_modified_session(can_veto = event.CanVeto())          result = self.save_modified_session(can_veto = event.CanVeto())
# Line 313  class MainWindow(wxFrame): Line 403  class MainWindow(wxFrame):
403              # wx's destroy event, but that isn't implemented for wxGTK              # wx's destroy event, but that isn't implemented for wxGTK
404              # yet.              # yet.
405              self.canvas.Unsubscribe(VIEW_POSITION, self.view_position_changed)              self.canvas.Unsubscribe(VIEW_POSITION, self.view_position_changed)
406                DockFrame.OnClose(self, event)
407                for dlg in self.dialogs.values():
408                    dlg.Destroy()
409                self.canvas.Destroy()
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):      def Map(self):
421          """Return the map displayed by this mainwindow"""          """Return the map displayed by this mainwindow"""
422    
423          return self.canvas.Map()          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 371  class MainWindow(wxFrame): Line 508  class MainWindow(wxFrame):
508      def CanRemoveLayer(self):      def CanRemoveLayer(self):
509          """Return true if the currently selected layer can be deleted.          """Return true if the currently selected layer can be deleted.
510    
511          If no layer is selected return false.          If no layer is selected return False.
512    
513          The return value of this method determines whether the remove          The return value of this method determines whether the remove
514          layer command is sensitive in menu.          layer command is sensitive in menu.
# Line 379  class MainWindow(wxFrame): Line 516  class MainWindow(wxFrame):
516          layer = self.current_layer()          layer = self.current_layer()
517          if layer is not None:          if layer is not None:
518              return self.canvas.Map().CanRemoveLayer(layer)              return self.canvas.Map().CanRemoveLayer(layer)
519          return 0          return False
520    
521      def RaiseLayer(self):      def RaiseLayer(self):
522          layer = self.current_layer()          layer = self.current_layer()
# Line 396  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()
   
     def choose_color(self):  
         """Run the color selection dialog and return the selected color.  
   
         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  
541    
542      def LayerFillColor(self):      def has_selected_shapes(self):
543          layer = self.current_layer()          """Return true if a shape is currently selected"""
544          if layer is not None:          return self.canvas.HasSelectedShapes()
             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 459  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.LayerTableFrame(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            layer = self.canvas.SelectedLayer()
623            if layer is not None:
624                dlg = JoinDialog(self, _("Join Layer with Table"),
625                                 self.application.session,
626                                 layer = layer)
627                dlg.ShowModal()
628    
629        def LayerUnjoinTable(self):
630            print "LayerUnjoinTable: Not implemented."
631    
632        def ShowLegend(self):
633            if not self.LegendShown():
634                self.ToggleLegend()
635    
636        def ToggleLegend(self):
637            """Show the legend if it's not shown otherwise hide it again"""
638            name = "legend"
639            dialog = self.FindRegisteredDock(name)
640    
641            if dialog is None:
642                dialog = self.CreateDock(name, -1, _("Legend"), wxLAYOUT_LEFT)
643                legend.LegendPanel(dialog, None, self)
644                dialog.Dock()
645                dialog.GetPanel().SetMap(self.Map())
646                dialog.Show()
647          else:          else:
648              proj4Dlg = proj4dialog.Proj4Dialog(NULL, map.projection.params,              dialog.Show(not dialog.IsShown())
649                                                 map.BoundingBox())  
650          if proj4Dlg.ShowModal() == wxID_OK:      def LegendShown(self):
651              params = proj4Dlg.GetParams()          """Return true iff the legend is currently open"""
652              if params is not None:          dialog = self.FindRegisteredDock("legend")
653                  proj = Projection(params)          return dialog is not None and dialog.IsShown()
654    
655        def TableOpen(self):
656            dlg = wxFileDialog(self, _("Open Table"), ".", "",
657                               _("DBF Files (*.dbf)") + "|*.dbf|" +
658                               #_("CSV Files (*.csv)") + "|*.csv|" +
659                               _("All Files (*.*)") + "|*.*",
660                               wxOPEN)
661            if dlg.ShowModal() == wxID_OK:
662                filename = dlg.GetPath()
663                dlg.Destroy()
664                try:
665                    table = self.application.session.OpenTableFile(filename)
666                except IOError:
667                    # the layer couldn't be opened
668                    self.RunMessageBox(_("Open Table"),
669                                       _("Can't open the file '%s'.") % filename)
670              else:              else:
671                  proj = None                  self.ShowTableView(table)
672              map.SetProjection(proj)  
673          proj4Dlg.Destroy()      def TableClose(self):
674            tables = self.application.session.UnreferencedTables()
675    
676            dlg = wxMultipleChoiceDialog(self, _("Pick the tables to close:"),
677                                         _("Close Table"),
678                                         [t.Title() for t in tables],
679                                         size = (400, 300), style=wxRESIZE_BORDER)
680            if dlg.ShowModal() == wxID_OK:
681                for i in dlg.GetValue():
682                    self.application.session.RemoveTable(tables[i])
683    
684    
685        def TableShow(self):
686            """Offer a multi-selection dialog for tables to be displayed
687    
688            The windows for the selected tables are opened or brought to
689            the front.
690            """
691            tables = self.application.session.Tables()
692    
693            dlg = wxMultipleChoiceDialog(self, _("Pick the table to show:"),
694                                         _("Show Table"),
695                                         [t.Title() for t in tables],
696                                         size = (400,300), style = wxRESIZE_BORDER)
697            if (dlg.ShowModal() == wxID_OK):
698                for i in dlg.GetValue():
699                    # XXX: if the table belongs to a layer, open a
700                    # LayerTableFrame instead of QueryTableFrame
701                    self.ShowTableView(tables[i])
702    
703        def TableJoin(self):
704            dlg = JoinDialog(self, _("Join Tables"), self.application.session)
705            dlg.ShowModal()
706    
707        def ShowTableView(self, table):
708            """Open a table view for the table and optionally"""
709            name = "table_view%d" % id(table)
710            dialog = self.get_open_dialog(name)
711            if dialog is None:
712                dialog = tableview.QueryTableFrame(self, name,
713                                                   _("Table: %s") % table.Title(),
714                                                   table)
715                self.add_dialog(name, dialog)
716                dialog.Show(True)
717            # FIXME: else bring dialog to front
718    
719      def ZoomInTool(self):      def ZoomInTool(self):
720          self.canvas.ZoomInTool()          self.canvas.ZoomInTool()
# Line 504  class MainWindow(wxFrame): Line 735  class MainWindow(wxFrame):
735      def FullExtent(self):      def FullExtent(self):
736          self.canvas.FitMapToWindow()          self.canvas.FitMapToWindow()
737    
738        def FullLayerExtent(self):
739            self.canvas.FitLayerToWindow(self.current_layer())
740    
741        def FullSelectionExtent(self):
742            self.canvas.FitSelectedToWindow()
743    
744        def ExportMap(self):
745            self.canvas.Export()
746    
747      def PrintMap(self):      def PrintMap(self):
748          self.canvas.Print()          self.canvas.Print()
749    
750      def identify_view_on_demand(self, layer, shape):      def RenameMap(self):
751            dlg = wxTextEntryDialog(self, "Map Title: ", "Rename Map",
752                                    self.Map().Title())
753            if dlg.ShowModal() == wxID_OK:
754                title = dlg.GetValue()
755                if title != "":
756                    self.Map().SetTitle(title)
757                    self.__SetTitle(title)
758    
759            dlg.Destroy()
760    
761        def identify_view_on_demand(self, layer, shapes):
762            """Subscribed to the canvas' SHAPES_SELECTED message
763    
764            If the current tool is the identify tool, at least one shape is
765            selected and the identify dialog is not shown, show the dialog.
766            """
767            # If the selection has become empty we don't need to do
768            # anything. Otherwise it could happen that the dialog was popped
769            # up when the selection became empty, e.g. when a new selection
770            # is opened while the identify tool is active and dialog had
771            # been closed
772            if not shapes:
773                return
774    
775          name = "identify_view"          name = "identify_view"
776          if self.canvas.CurrentTool() == "IdentifyTool":          if self.canvas.CurrentTool() == "IdentifyTool":
777              if not self.dialog_open(name):              if not self.dialog_open(name):
778                  dialog = identifyview.IdentifyView(self, self.interactor, name)                  dialog = identifyview.IdentifyView(self, name)
779                  self.add_dialog(name, dialog)                  self.add_dialog(name, dialog)
780                  dialog.Show(true)                  dialog.Show(True)
781              else:              else:
782                  # FIXME: bring dialog to front?                  # FIXME: bring dialog to front?
783                  pass                  pass
784    
785        def __SetTitle(self, title):
786            self.SetTitle("Thuban - " + title)
787    
788  #  #
789  # Define all the commands available in the main window  # Define all the commands available in the main window
790  #  #
# Line 529  def call_method(context, methodname, *ar Line 796  def call_method(context, methodname, *ar
796      apply(getattr(context.mainwindow, methodname), args)      apply(getattr(context.mainwindow, methodname), args)
797    
798  def _method_command(name, title, method, helptext = "",  def _method_command(name, title, method, helptext = "",
799                      icon = "", sensitive = None):                      icon = "", sensitive = None, checked = None):
800      """Add a command implemented by a method of the mainwindow object"""      """Add a command implemented by a method of the mainwindow object"""
801      registry.Add(Command(name, title, call_method, args=(method,),      registry.Add(Command(name, title, call_method, args=(method,),
802                           helptext = helptext, icon = icon,                           helptext = helptext, icon = icon,
803                           sensitive = sensitive))                           sensitive = sensitive, checked = checked))
804    
805  def make_check_current_tool(toolname):  def make_check_current_tool(toolname):
806      """Return a function that tests if the currently active tool is toolname      """Return a function that tests if the currently active tool is toolname
# Line 549  def make_check_current_tool(toolname): Line 816  def make_check_current_tool(toolname):
816  def _tool_command(name, title, method, toolname, helptext = "",  def _tool_command(name, title, method, toolname, helptext = "",
817                    icon = "", sensitive = None):                    icon = "", sensitive = None):
818      """Add a tool command"""      """Add a tool command"""
819      registry.Add(Command(name, title, call_method, args=(method,),      registry.Add(ToolCommand(name, title, call_method, args=(method,),
820                           helptext = helptext, icon = icon,                               helptext = helptext, icon = icon,
821                           checked = make_check_current_tool(toolname),                               checked = make_check_current_tool(toolname),
822                           sensitive = sensitive))                               sensitive = sensitive))
823    
824  def _has_selected_layer(context):  def _has_selected_layer(context):
825      """Return true if a layer is selected in the context"""      """Return true if a layer is selected in the context"""
826      return context.mainwindow.has_selected_layer()      return context.mainwindow.has_selected_layer()
827    
828    def _has_selected_shapes(context):
829        """Return true if a layer is selected in the context"""
830        return context.mainwindow.has_selected_shapes()
831    
832  def _can_remove_layer(context):  def _can_remove_layer(context):
833      return context.mainwindow.CanRemoveLayer()      return context.mainwindow.CanRemoveLayer()
834    
835  def _has_tree_window_shown(context):  def _has_tree_window_shown(context):
836      """Return true if the tree window is shown"""      """Return true if the tree window is shown"""
837      return context.mainwindow.get_open_dialog("session_tree") is None      return context.mainwindow.SessionTreeShown()
838    
839  def _has_visible_map(context):  def _has_visible_map(context):
840      """Return true iff theres a visible map in the mainwindow.      """Return true iff theres a visible map in the mainwindow.
# Line 576  def _has_visible_map(context): Line 847  def _has_visible_map(context):
847                  return 1                  return 1
848      return 0      return 0
849    
850    def _has_legend_shown(context):
851        """Return true if the legend window is shown"""
852        return context.mainwindow.LegendShown()
853    
854    
855  # File menu  # File menu
856  _method_command("new_session", "&New Session", "NewSession")  _method_command("new_session", _("&New Session"), "NewSession")
857  _method_command("open_session", "&Open Session", "OpenSession")  _method_command("open_session", _("&Open Session..."), "OpenSession")
858  _method_command("save_session", "&Save Session", "SaveSession")  _method_command("save_session", _("&Save Session"), "SaveSession")
859  _method_command("save_session_as", "Save Session &As", "SaveSessionAs")  _method_command("save_session_as", _("Save Session &As..."), "SaveSessionAs")
860  _method_command("show_session_tree", "Show Session &Tree", "ShowSessionTree",  _method_command("toggle_session_tree", _("Session &Tree"), "ToggleSessionTree",
861                  sensitive = _has_tree_window_shown)                  checked = _has_tree_window_shown)
862  _method_command("exit", "&Exit", "Exit")  _method_command("toggle_legend", _("Legend"), "ToggleLegend",
863                    checked = _has_legend_shown)
864    _method_command("exit", _("E&xit"), "Exit")
865    
866  # Help menu  # Help menu
867  _method_command("help_about", "&About", "About")  _method_command("help_about", _("&About..."), "About")
868    
869    
870  # Map menu  # Map menu
871  _method_command("map_projection", "Pro&jection", "Projection")  _method_command("map_projection", _("Pro&jection..."), "MapProjection")
872    
873  _tool_command("map_zoom_in_tool", "&Zoom in", "ZoomInTool", "ZoomInTool",  _tool_command("map_zoom_in_tool", _("&Zoom in"), "ZoomInTool", "ZoomInTool",
874                helptext = "Switch to map-mode 'zoom-in'", icon = "zoom_in",                helptext = _("Switch to map-mode 'zoom-in'"), icon = "zoom_in",
875                sensitive = _has_visible_map)                sensitive = _has_visible_map)
876  _tool_command("map_zoom_out_tool", "Zoom &out", "ZoomOutTool", "ZoomOutTool",  _tool_command("map_zoom_out_tool", _("Zoom &out"), "ZoomOutTool", "ZoomOutTool",
877                helptext = "Switch to map-mode 'zoom-out'", icon = "zoom_out",                helptext = _("Switch to map-mode 'zoom-out'"), icon = "zoom_out",
878                sensitive = _has_visible_map)                sensitive = _has_visible_map)
879  _tool_command("map_pan_tool", "&Pan", "PanTool", "PanTool",  _tool_command("map_pan_tool", _("&Pan"), "PanTool", "PanTool",
880                helptext = "Switch to map-mode 'pan'", icon = "pan",                helptext = _("Switch to map-mode 'pan'"), icon = "pan",
881                sensitive = _has_visible_map)                sensitive = _has_visible_map)
882  _tool_command("map_identify_tool", "&Identify", "IdentifyTool", "IdentifyTool",  _tool_command("map_identify_tool", _("&Identify"), "IdentifyTool",
883                helptext = "Switch to map-mode 'identify'", icon = "identify",                "IdentifyTool",
884                  helptext = _("Switch to map-mode 'identify'"), icon = "identify",
885                sensitive = _has_visible_map)                sensitive = _has_visible_map)
886  _tool_command("map_label_tool", "&Label", "LabelTool", "LabelTool",  _tool_command("map_label_tool", _("&Label"), "LabelTool", "LabelTool",
887                helptext = "Add/Remove labels", icon = "label",                helptext = _("Add/Remove labels"), icon = "label",
888                sensitive = _has_visible_map)                sensitive = _has_visible_map)
889  _method_command("map_full_extent", "&Full extent", "FullExtent",  _method_command("map_full_extent", _("&Full extent"), "FullExtent",
890                 helptext = "Full Extent", icon = "fullextent",                 helptext = _("Full Extent"), icon = "fullextent",
891                sensitive = _has_visible_map)                sensitive = _has_visible_map)
892  _method_command("map_print", "Prin&t", "PrintMap", helptext = "Print the map")  _method_command("layer_full_extent", _("&Full layer extent"), "FullLayerExtent",
893                   helptext = _("Full Layer Extent"), icon = "fulllayerextent",
894                  sensitive = _has_selected_layer)
895    _method_command("selected_full_extent", _("&Full selection extent"), "FullSelectionExtent",
896                   helptext = _("Full Selection Extent"), icon = "fullselextent",
897                  sensitive = _has_selected_shapes)
898    _method_command("map_export", _("E&xport"), "ExportMap",
899                        helptext = _("Export the map to file"))
900    _method_command("map_print", _("Prin&t"), "PrintMap",
901                    helptext = _("Print the map"))
902    _method_command("map_rename", _("&Rename..."), "RenameMap",
903                    helptext = _("Rename the map"))
904    _method_command("layer_add", _("&Add Layer..."), "AddLayer",
905                    helptext = _("Add a new layer to active map"))
906    _method_command("rasterlayer_add", _("&Add Image Layer..."), "AddRasterLayer",
907                    helptext = _("Add a new image layer to active map"))
908    _method_command("layer_remove", _("&Remove Layer"), "RemoveLayer",
909                    helptext = _("Remove selected layer(s)"),
910                    sensitive = _can_remove_layer)
911    
912  # Layer menu  # Layer menu
913  _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)",  
914                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
915  _method_command("layer_transparent_fill", "&Transparent Fill",  _method_command("layer_raise", _("&Raise"), "RaiseLayer",
916                  "LayerTransparentFill",                  helptext = _("Raise selected layer(s)"),
                 helptext = "Do not fill the selected layer(s)",  
917                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
918  _method_command("layer_outline_color", "&Outline Color", "LayerOutlineColor",  _method_command("layer_lower", _("&Lower"), "LowerLayer",
919                  helptext = "Set the outline color of selected layer(s)",                  helptext = _("Lower selected layer(s)"),
920                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
921  _method_command("layer_no_outline", "&No Outline", "LayerNoOutline",  _method_command("layer_show", _("&Show"), "ShowLayer",
922                  helptext = "Do not draw the outline of the selected layer(s)",                  helptext = _("Make selected layer(s) visible"),
923                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
924  _method_command("layer_raise", "&Raise", "RaiseLayer",  _method_command("layer_hide", _("&Hide"), "HideLayer",
925                  helptext = "Raise selected layer(s)",                  helptext = _("Make selected layer(s) unvisible"),
926                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
927  _method_command("layer_lower", "&Lower", "LowerLayer",  _method_command("layer_show_table", _("Show Ta&ble"), "LayerShowTable",
928                  helptext = "Lower selected layer(s)",                  helptext = _("Show the selected layer's table"),
929                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
930  _method_command("layer_show", "&Show", "ShowLayer",  _method_command("layer_properties", _("&Properties..."), "LayerEditProperties",
                 helptext = "Make selected layer(s) visible",  
931                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
932  _method_command("layer_hide", "&Hide", "HideLayer",  _method_command("layer_jointable", _("&Join Table..."), "LayerJoinTable",
                 helptext = "Make selected layer(s) unvisible",  
933                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
934  _method_command("layer_show_table", "Show Ta&ble", "LayerShowTable",  _method_command("layer_unjointable", _("&Unjoin Table..."), "LayerUnjoinTable",
                 helptext = "Show the selected layer's table",  
935                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
936    
937    # Table menu
938    _method_command("table_open", _("&Open..."), "TableOpen")
939    _method_command("table_close", _("&Close"), "TableClose",
940           sensitive = lambda context: bool(context.session.UnreferencedTables()))
941    _method_command("table_show", _("&Show"), "TableShow")
942    _method_command("table_join", _("&Join..."), "TableJoin")
943    
944  # the menu structure  #  Export only under Windows ...
945  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",  
946                          None,                          None,
947                          "map_projection",                          "map_projection",
948                          None,                          None,
949                          "map_zoom_in_tool", "map_zoom_out_tool",                          "map_zoom_in_tool", "map_zoom_out_tool",
950                          "map_pan_tool", "map_identify_tool", "map_label_tool",                          "map_pan_tool",
951                          None,                          "map_full_extent",
952                          "map_full_extent",                          "layer_full_extent",
953                            "selected_full_extent",
954                          None,                          None,
955                          "map_print"]),                          "map_identify_tool", "map_label_tool",
                   Menu("layer", "&Layer",  
                        ["layer_fill_color", "layer_transparent_fill",  
                         "layer_outline_color", "layer_no_outline",  
956                          None,                          None,
957                          "layer_raise", "layer_lower",                          "toggle_legend",
958                            None]
959    if wxPlatform == '__WXMSW__':
960        map_menu.append("map_export")
961    map_menu.append("map_print")
962    
963    # the menu structure
964    main_menu = Menu("<main>", "<main>",
965                     [Menu("file", _("&File"),
966                           ["new_session", "open_session", None,
967                            "save_session", "save_session_as", None,
968                            "toggle_session_tree", None,
969                            "exit"]),
970                      Menu("map", _("&Map"), map_menu),
971                      Menu("layer", _("&Layer"),
972                            ["layer_raise", "layer_lower",
973                          None,                          None,
974                          "layer_show", "layer_hide",                          "layer_show", "layer_hide",
975                          None,                          None,
976                          "layer_show_table"]),                          "layer_projection",
977                    Menu("help", "&Help",                          None,
978                            "layer_show_table",
979                            "layer_jointable",
980                            "layer_unjointable",
981                            None,
982                            "layer_properties"]),
983                      Menu("table", _("&Table"),
984                           ["table_open", "table_close",
985                           None,
986                           "table_show",
987                           None,
988                           "table_join"]),
989                      Menu("help", _("&Help"),
990                         ["help_about"])])                         ["help_about"])])
991    
992  # the main toolbar  # the main toolbar
993    
994  main_toolbar = Menu("<toolbar>", "<toolbar>",  main_toolbar = Menu("<toolbar>", "<toolbar>",
995                      ["map_zoom_in_tool", "map_zoom_out_tool", "map_pan_tool",                      ["map_zoom_in_tool", "map_zoom_out_tool", "map_pan_tool",
996                       "map_identify_tool", "map_label_tool", "map_full_extent"])                       "map_full_extent",
997                         "layer_full_extent",
998                         "selected_full_extent",
999                         None,
1000                         "map_identify_tool", "map_label_tool"])
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