/[thuban]/branches/WIP-pyshapelib-bramz/Thuban/UI/mainwindow.py
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revision 723 by bh, Thu Apr 24 15:31:53 2003 UTC revision 2529 by russell, Thu Jan 20 17:55:23 2005 UTC
# Line 1  Line 1 
1  # Copyright (C) 2001, 2002, 2003 by Intevation GmbH  # Copyright (C) 2001, 2002, 2003, 2004 by Intevation GmbH
2  # Authors:  # Authors:
3  # Jan-Oliver Wagner <[email protected]>  # Jan-Oliver Wagner <[email protected]>
4  # Bernhard Herzog <[email protected]>  # Bernhard Herzog <[email protected]>
5    # Frank Koormann <[email protected]>
6  #  #
7  # This program is free software under the GPL (>=v2)  # This program is free software under the GPL (>=v2)
8  # Read the file COPYING coming with Thuban for details.  # Read the file COPYING coming with Thuban for details.
# Line 11  The main window Line 12  The main window
12  """  """
13    
14  __version__ = "$Revision$"  __version__ = "$Revision$"
15    # $Source$
16  __ThubanVersion__ = "0.2" #"$THUBAN_0_2$"  # $Id$
 #__BuildDate__ = "$Date$"  
17    
18  import os  import os
19    import copy
20    
21  from wxPython.wx import *  from wxPython.wx import *
22    
23  import Thuban  import Thuban
24    
25  from Thuban import _  from Thuban import _
26    from Thuban.Model.messages import TITLE_CHANGED
27  from Thuban.Model.session import create_empty_session  from Thuban.Model.session import create_empty_session
28  from Thuban.Model.layer import Layer  from Thuban.Model.layer import Layer, RasterLayer
29  from Thuban.Model.color import Color  from Thuban.Model.postgisdb import PostGISShapeStore, has_postgis_support
30  from Thuban.Model.proj import Projection  # XXX: replace this by
31    # from wxPython.lib.dialogs import wxMultipleChoiceDialog
32    # when Thuban does not support wxPython 2.4.0 any more.
33    from Thuban.UI.multiplechoicedialog import wxMultipleChoiceDialog
34    
35  import view  import view
36  import tree  import tree
 import proj4dialog  
37  import tableview, identifyview  import tableview, identifyview
 from Thuban.UI.classifier import Classifier  
38  import legend  import legend
39  from menu import Menu  from menu import Menu
40    
41  from context import Context  from context import Context
42  from command import registry, Command, ToolCommand  from command import registry, Command, ToolCommand
43  from messages import LAYER_SELECTED, SHAPES_SELECTED, VIEW_POSITION  from messages import LAYER_SELECTED, SHAPES_SELECTED, VIEW_POSITION, \
44         MAP_REPLACED
45    from about import About
46    
47  from Thuban.UI.dock import DockFrame  from Thuban.UI.dock import DockFrame
48    from Thuban.UI.join import JoinDialog
49    from Thuban.UI.dbdialog import DBFrame, DBDialog, ChooseDBTableDialog
50  import resource  import resource
51    import Thuban.Model.resource
52    
53  import projdialog  import projdialog
54    
55    from Thuban.Lib.classmapper import ClassMapper
56    
57    layer_properties_dialogs = ClassMapper()
58    
59  class MainWindow(DockFrame):  class MainWindow(DockFrame):
60    
# Line 54  class MainWindow(DockFrame): Line 64  class MainWindow(DockFrame):
64      # actually come from. This delegation is implemented in the      # actually come from. This delegation is implemented in the
65      # Subscribe and unsubscribed methods      # Subscribe and unsubscribed methods
66      delegated_messages = {LAYER_SELECTED: "canvas",      delegated_messages = {LAYER_SELECTED: "canvas",
67                            SHAPES_SELECTED: "canvas"}                            SHAPES_SELECTED: "canvas",
68                              MAP_REPLACED: "canvas"}
69    
70      # Methods delegated to some instance variables. The delegation is      # Methods delegated to some instance variables. The delegation is
71      # implemented in the __getattr__ method.      # implemented in the __getattr__ method.
72      delegated_methods = {"SelectLayer": "canvas",      delegated_methods = {"SelectLayer": "canvas",
73                           "SelectShapes": "canvas",                           "SelectShapes": "canvas",
74                             "SelectedLayer": "canvas",
75                             "SelectedShapes": "canvas",
76                           }                           }
77    
78      def __init__(self, parent, ID, title, application, interactor,      def __init__(self, parent, ID, title, application, interactor,
# Line 91  class MainWindow(DockFrame): Line 104  class MainWindow(DockFrame):
104          canvas.Subscribe(VIEW_POSITION, self.view_position_changed)          canvas.Subscribe(VIEW_POSITION, self.view_position_changed)
105          canvas.Subscribe(SHAPES_SELECTED, self.identify_view_on_demand)          canvas.Subscribe(SHAPES_SELECTED, self.identify_view_on_demand)
106          self.canvas = canvas          self.canvas = canvas
107            self.canvas.Subscribe(TITLE_CHANGED, self.title_changed)
108    
109          self.SetMainWindow(self.canvas)          self.SetMainWindow(self.canvas)
110    
# Line 98  class MainWindow(DockFrame): Line 112  class MainWindow(DockFrame):
112    
113          self.init_dialogs()          self.init_dialogs()
114    
115          EVT_CLOSE(self, self._OnClose)          self.ShowLegend()
116    
117            EVT_CLOSE(self, self.OnClose)
118    
119      def Subscribe(self, channel, *args):      def Subscribe(self, channel, *args):
120          """Subscribe a function to a message channel.          """Subscribe a function to a message channel.
# Line 120  class MainWindow(DockFrame): Line 136  class MainWindow(DockFrame):
136          """          """
137          if channel in self.delegated_messages:          if channel in self.delegated_messages:
138              object = getattr(self, self.delegated_messages[channel])              object = getattr(self, self.delegated_messages[channel])
139              object.Unsubscribe(channel, *args)              try:
140                    object.Unsubscribe(channel, *args)
141                except wxPyDeadObjectError:
142                    # The object was a wxObject and has already been
143                    # destroyed. Hopefully it has unsubscribed all its
144                    # subscribers already so that it's OK if we do nothing
145                    # here
146                    pass
147    
148      def __getattr__(self, attr):      def __getattr__(self, attr):
149          """If attr is one of the delegated methods return that method          """If attr is one of the delegated methods return that method
# Line 317  class MainWindow(DockFrame): Line 340  class MainWindow(DockFrame):
340              text = "(%10.10g, %10.10g)" % pos              text = "(%10.10g, %10.10g)" % pos
341          else:          else:
342              text = ""              text = ""
343                map = self.canvas.Map()
344                for layer in map.layers:
345                    bbox = layer.LatLongBoundingBox()
346                    if bbox:
347                        left, bottom, right, top = bbox
348                        if not (-180 <= left <= 180 and
349                            -180 <= right <= 180 and
350                            -90 <= top <= 90 and
351                            -90 <= bottom <= 90):
352                            text = ("Select '"+layer.title+"' and pick a " +
353                                "projection using Layer/Projection...")
354                            break
355    
356          self.set_position_text(text)          self.set_position_text(text)
357    
358      def set_position_text(self, text):      def set_position_text(self, text):
# Line 328  class MainWindow(DockFrame): Line 364  class MainWindow(DockFrame):
364          """          """
365          self.SetStatusText(text)          self.SetStatusText(text)
366    
367        def OpenOrRaiseDialog(self, name, dialog_class, *args, **kw):
368            """
369            Open or raise a dialog.
370    
371            If a dialog with the denoted name does already exist it is
372            raised.  Otherwise a new dialog, an instance of dialog_class,
373            is created, inserted into the main list and displayed.
374            """
375            dialog = self.get_open_dialog(name)
376    
377            if dialog is None:
378                dialog = dialog_class(self, name, *args, **kw)
379                self.add_dialog(name, dialog)
380                dialog.Show(True)
381            else:
382                dialog.Raise()
383                              
384      def save_modified_session(self, can_veto = 1):      def save_modified_session(self, can_veto = 1):
385          """If the current session has been modified, ask the user          """If the current session has been modified, ask the user
386          whether to save it and do so if requested. Return the outcome of          whether to save it and do so if requested. Return the outcome of
# Line 351  class MainWindow(DockFrame): Line 404  class MainWindow(DockFrame):
404              result = wxID_NO              result = wxID_NO
405          return result          return result
406    
     def prepare_new_session(self):  
         for d in self.dialogs.values():  
             if not isinstance(d, tree.SessionTreeView):  
                 d.Close()  
   
407      def NewSession(self):      def NewSession(self):
408          self.save_modified_session()          if self.save_modified_session() != wxID_CANCEL:
409          self.prepare_new_session()              self.application.SetSession(create_empty_session())
         self.application.SetSession(create_empty_session())  
410    
411      def OpenSession(self):      def OpenSession(self):
412          self.save_modified_session()          if self.save_modified_session() != wxID_CANCEL:
413          dlg = wxFileDialog(self, _("Open Session"), ".", "", "*.thuban", wxOPEN)              dlg = wxFileDialog(self, _("Open Session"),
414          if dlg.ShowModal() == wxID_OK:                                 self.application.Path("data"), "",
415              self.prepare_new_session()                                 "Thuban Session File (*.thuban)|*.thuban",
416              self.application.OpenSession(dlg.GetPath())                                 wxOPEN)
417          dlg.Destroy()              if dlg.ShowModal() == wxID_OK:
418                    self.application.OpenSession(dlg.GetPath(),
419                                                 self.run_db_param_dialog)
420                    self.application.SetPath("data", dlg.GetPath())
421                dlg.Destroy()
422    
423        def run_db_param_dialog(self, parameters, message):
424            dlg = DBDialog(self, _("DB Connection Parameters"), parameters,
425                           message)
426            return dlg.RunDialog()
427    
428      def SaveSession(self):      def SaveSession(self):
429          if self.application.session.filename == None:          if self.application.session.filename == None:
# Line 376  class MainWindow(DockFrame): Line 432  class MainWindow(DockFrame):
432              self.application.SaveSession()              self.application.SaveSession()
433    
434      def SaveSessionAs(self):      def SaveSessionAs(self):
435          dlg = wxFileDialog(self, _("Save Session As"), ".", "",          dlg = wxFileDialog(self, _("Save Session As"),
436                             "*.thuban", wxOPEN)                             self.application.Path("data"), "",
437                               "Thuban Session File (*.thuban)|*.thuban",
438                               wxSAVE|wxOVERWRITE_PROMPT)
439          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wxID_OK:
440              self.application.session.SetFilename(dlg.GetPath())              self.application.session.SetFilename(dlg.GetPath())
441              self.application.SaveSession()              self.application.SaveSession()
442                self.application.SetPath("data",dlg.GetPath())
443          dlg.Destroy()          dlg.Destroy()
444    
445      def Exit(self):      def Exit(self):
446          self.Close(False)          self.Close(False)
447    
448      def _OnClose(self, event):      def OnClose(self, event):
449          result = self.save_modified_session(can_veto = event.CanVeto())          result = self.save_modified_session(can_veto = event.CanVeto())
450          if result == wxID_CANCEL:          if result == wxID_CANCEL:
451              event.Veto()              event.Veto()
# Line 395  class MainWindow(DockFrame): Line 454  class MainWindow(DockFrame):
454              # wx's destroy event, but that isn't implemented for wxGTK              # wx's destroy event, but that isn't implemented for wxGTK
455              # yet.              # yet.
456              self.canvas.Unsubscribe(VIEW_POSITION, self.view_position_changed)              self.canvas.Unsubscribe(VIEW_POSITION, self.view_position_changed)
457              DockFrame._OnClose(self, event)              DockFrame.OnClose(self, event)
458                for dlg in self.dialogs.values():
459                    dlg.Destroy()
460                self.canvas.Destroy()
461              self.Destroy()              self.Destroy()
462    
463      def SetMap(self, map):      def SetMap(self, map):
464          self.canvas.SetMap(map)          self.canvas.SetMap(map)
465          self.__SetTitle(map.Title())          self.update_title()
466          #self.legendPanel.SetMap(map)  
467            dialog = self.FindRegisteredDock("legend")
468            if dialog is not None:
469                dialog.GetPanel().SetMap(self.Map())
470    
471      def Map(self):      def Map(self):
472          """Return the map displayed by this mainwindow"""          """Return the map displayed by this mainwindow"""
473    
         # sanity check  
         #assert(self.canvas.Map() is self.legendPanel.GetMap())  
   
474          return self.canvas.Map()          return self.canvas.Map()
475    
476      def ToggleSessionTree(self):      def ToggleSessionTree(self):
# Line 427  class MainWindow(DockFrame): Line 489  class MainWindow(DockFrame):
489          return self.get_open_dialog("session_tree") is not None          return self.get_open_dialog("session_tree") is not None
490    
491      def About(self):      def About(self):
492          self.RunMessageBox(_("About"),          dlg = About(self)
493                             _("Thuban v%s\n"          dlg.ShowModal()
494                              #"Build Date: %s\n"          dlg.Destroy()
495                              "\n"  
496                              "Thuban is a program for\n"      def DatabaseManagement(self):
497                              "exploring geographic data.\n"          name = "dbmanagement"
498                              "Copyright (C) 2001-2003 Intevation GmbH.\n"          dialog = self.get_open_dialog(name)
499                              "Thuban is licensed under the GNU GPL"          if dialog is None:
500                             % __ThubanVersion__), #__BuildDate__)),              map = self.canvas.Map()
501                             wxOK | wxICON_INFORMATION)              dialog = DBFrame(self, name, self.application.Session())
502                self.add_dialog(name, dialog)
503                dialog.Show()
504            dialog.Raise()
505    
506      def AddLayer(self):      def AddLayer(self):
507          dlg = wxFileDialog(self, _("Select a data file"), ".", "", "*.*",          dlg = wxFileDialog(self, _("Select one or more data files"),
508                               self.application.Path("data"), "",
509                               _("Shapefiles (*.shp)") + "|*.shp;*.SHP|" +
510                               _("All Files (*.*)") + "|*.*",
511                               wxOPEN | wxMULTIPLE)
512            if dlg.ShowModal() == wxID_OK:
513                filenames = dlg.GetPaths()
514                for filename in filenames:
515                    title = os.path.splitext(os.path.basename(filename))[0]
516                    map = self.canvas.Map()
517                    has_layers = map.HasLayers()
518                    try:
519                        store = self.application.Session().OpenShapefile(filename)
520                    except IOError:
521                        # the layer couldn't be opened
522                        self.RunMessageBox(_("Add Layer"),
523                                           _("Can't open the file '%s'.")%filename)
524                    else:
525                        layer = Layer(title, store)
526                        map.AddLayer(layer)
527                        if not has_layers:
528                            # if we're adding a layer to an empty map, fit the
529                            # new map to the window
530                            self.canvas.FitMapToWindow()
531                        self.application.SetPath("data",filename)
532            dlg.Destroy()
533    
534        def AddRasterLayer(self):
535            dlg = wxFileDialog(self, _("Select an image file"),
536                               self.application.Path("data"), "", "*.*",
537                             wxOPEN)                             wxOPEN)
538          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wxID_OK:
539              filename = dlg.GetPath()              filename = dlg.GetPath()
540              title = os.path.splitext(os.path.basename(filename))[0]              title = os.path.splitext(os.path.basename(filename))[0]
             store = self.application.Session().OpenShapefile(filename)  
             layer = Layer(title, store)  
541              map = self.canvas.Map()              map = self.canvas.Map()
542              has_layers = map.HasLayers()              has_layers = map.HasLayers()
543              try:              try:
544                  map.AddLayer(layer)                  layer = RasterLayer(title, filename)
545              except IOError:              except IOError:
546                  # the layer couldn't be opened                  # the layer couldn't be opened
547                  self.RunMessageBox(_("Add Layer"),                  self.RunMessageBox(_("Add Image Layer"),
548                                     _("Can't open the file '%s'.") % filename)                                     _("Can't open the file '%s'.") % filename)
549              else:              else:
550                    map.AddLayer(layer)
551                  if not has_layers:                  if not has_layers:
552                      # if we're adding a layer to an empty map, fit the                      # if we're adding a layer to an empty map, fit the
553                      # new map to the window                      # new map to the window
554                      self.canvas.FitMapToWindow()                      self.canvas.FitMapToWindow()
555                    self.application.SetPath("data", filename)
556            dlg.Destroy()
557    
558        def AddDBLayer(self):
559            """Add a layer read from a database"""
560            session = self.application.Session()
561            dlg = ChooseDBTableDialog(self, self.application.Session())
562    
563            if dlg.ShowModal() == wxID_OK:
564                dbconn, dbtable, id_column, geo_column = dlg.GetTable()
565                try:
566                    title = str(dbtable)
567    
568                    # Chose the correct Interface for the database type
569                    store = session.OpenDBShapeStore(dbconn, dbtable,
570                                                     id_column = id_column,
571                                                     geometry_column = geo_column)
572                    layer = Layer(title, store)
573                except:
574                    # Some error occured while initializing the layer
575                    self.RunMessageBox(_("Add Layer from database"),
576                                       _("Can't open the database table '%s'")
577                                       % dbtable)
578                    return
579    
580                map = self.canvas.Map()
581    
582                has_layers = map.HasLayers()
583                map.AddLayer(layer)
584                if not has_layers:
585                    self.canvas.FitMapToWindow()
586    
587          dlg.Destroy()          dlg.Destroy()
588    
589      def RemoveLayer(self):      def RemoveLayer(self):
# Line 479  class MainWindow(DockFrame): Line 604  class MainWindow(DockFrame):
604              return self.canvas.Map().CanRemoveLayer(layer)              return self.canvas.Map().CanRemoveLayer(layer)
605          return False          return False
606    
607        def LayerToTop(self):
608            layer = self.current_layer()
609            if layer is not None:
610                self.canvas.Map().MoveLayerToTop(layer)
611    
612      def RaiseLayer(self):      def RaiseLayer(self):
613          layer = self.current_layer()          layer = self.current_layer()
614          if layer is not None:          if layer is not None:
# Line 489  class MainWindow(DockFrame): Line 619  class MainWindow(DockFrame):
619          if layer is not None:          if layer is not None:
620              self.canvas.Map().LowerLayer(layer)              self.canvas.Map().LowerLayer(layer)
621    
622        def LayerToBottom(self):
623            layer = self.current_layer()
624            if layer is not None:
625                self.canvas.Map().MoveLayerToBottom(layer)
626    
627      def current_layer(self):      def current_layer(self):
628          """Return the currently selected layer.          """Return the currently selected layer.
629    
# Line 500  class MainWindow(DockFrame): Line 635  class MainWindow(DockFrame):
635          """Return true if a layer is currently selected"""          """Return true if a layer is currently selected"""
636          return self.canvas.HasSelectedLayer()          return self.canvas.HasSelectedLayer()
637    
638      def choose_color(self):      def has_selected_shape_layer(self):
639          """Run the color selection dialog and return the selected color.          """Return true if a shape layer is currently selected"""
640            return isinstance(self.current_layer(), Layer)
641          If the user cancels, return None.  
642          """      def has_selected_shapes(self):
643          dlg = wxColourDialog(self)          """Return true if a shape is currently selected"""
644          color = None          return self.canvas.HasSelectedShapes()
         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  
645    
646      def HideLayer(self):      def HideLayer(self):
647          layer = self.current_layer()          layer = self.current_layer()
648          if layer is not None:          if layer is not None:
649              layer.SetVisible(0)              layer.SetVisible(False)
650            
651      def ShowLayer(self):      def ShowLayer(self):
652          layer = self.current_layer()          layer = self.current_layer()
653          if layer is not None:          if layer is not None:
654              layer.SetVisible(1)              layer.SetVisible(True)
655    
656        def ToggleLayerVisibility(self):
657            layer = self.current_layer()
658            layer.SetVisible(not layer.Visible())
659    
660        def DuplicateLayer(self):
661            """Ceate a new layer above the selected layer with the same shapestore
662            """
663            layer = self.current_layer()
664            if layer is not None and hasattr(layer, "ShapeStore"):
665                new_layer = Layer(_("Copy of `%s'") % layer.Title(),
666                                  layer.ShapeStore(),
667                                  projection = layer.GetProjection())
668                new_classification = copy.deepcopy(layer.GetClassification())
669                new_layer.SetClassificationColumn(
670                        layer.GetClassificationColumn())
671                new_layer.SetClassification(new_classification)
672                self.Map().AddLayer(new_layer)
673    
674        def CanDuplicateLayer(self):
675            """Return whether the DuplicateLayer method can create a duplicate"""
676            layer = self.current_layer()
677            return layer is not None and hasattr(layer, "ShapeStore")
678    
679      def LayerShowTable(self):      def LayerShowTable(self):
680            """
681            Present a TableView Window for the current layer.
682            In case the window is already open, bring it to the front.
683            In case, there is no active layer, do nothing.
684            In case, the layer has no ShapeStore, do nothing.
685            """
686          layer = self.current_layer()          layer = self.current_layer()
687          if layer is not None:          if layer is not None:
688              table = layer.table              if not hasattr(layer, "ShapeStore"):
689                    return
690                table = layer.ShapeStore().Table()
691              name = "table_view" + str(id(table))              name = "table_view" + str(id(table))
692              dialog = self.get_open_dialog(name)              dialog = self.get_open_dialog(name)
693              if dialog is None:              if dialog is None:
694                  dialog = tableview.LayerTableFrame(self, name,                  dialog = tableview.LayerTableFrame(self, name,
695                                                 _("Table: %s") % layer.Title(),                                           _("Layer Table: %s") % layer.Title(),
696                                                     layer, table)                                           layer, table)
697                  self.add_dialog(name, dialog)                  self.add_dialog(name, dialog)
698                  dialog.Show(true)                  dialog.Show(True)
699              else:              else:
700                  # FIXME: bring dialog to front here                  dialog.Raise()
                 pass  
701    
702      def Projection(self):      def MapProjection(self):
703    
704          name = "projection"          name = "map_projection"
705          dialog = self.get_open_dialog(name)          dialog = self.get_open_dialog(name)
706    
707          if dialog is None:          if dialog is None:
708              map = self.canvas.Map()              map = self.canvas.Map()
709              dialog = projdialog.ProjFrame(self, name, map)              dialog = projdialog.ProjFrame(self, name,
710                         _("Map Projection: %s") % map.Title(), map)
711                self.add_dialog(name, dialog)
712                dialog.Show()
713            dialog.Raise()
714    
715        def LayerProjection(self):
716    
717            layer = self.current_layer()
718    
719            name = "layer_projection" + str(id(layer))
720            dialog = self.get_open_dialog(name)
721    
722            if dialog is None:
723                map = self.canvas.Map()
724                dialog = projdialog.ProjFrame(self, name,
725                         _("Layer Projection: %s") % layer.Title(), layer)
726              self.add_dialog(name, dialog)              self.add_dialog(name, dialog)
727              dialog.Show()              dialog.Show()
728          dialog.Raise()          dialog.Raise()
# Line 566  class MainWindow(DockFrame): Line 739  class MainWindow(DockFrame):
739          self.OpenLayerProperties(layer)          self.OpenLayerProperties(layer)
740    
741      def OpenLayerProperties(self, layer, group = None):      def OpenLayerProperties(self, layer, group = None):
742          name = "layer_properties" + str(id(layer))          """
743          dialog = self.get_open_dialog(name)          Open or raise the properties dialog.
744    
745          if dialog is None:          This method opens or raises the properties dialog for the
746              dialog = Classifier(self, name, layer, group)          currently selected layer if one is defined for this layer
747              self.add_dialog(name, dialog)          type.
748              dialog.Show()          """
749          dialog.Raise()          dialog_class = layer_properties_dialogs.get(layer)
750    
751            if dialog_class is not None:
752                name = "layer_properties" + str(id(layer))
753                self.OpenOrRaiseDialog(name, dialog_class, layer, group = group)
754    
755        def LayerJoinTable(self):
756            layer = self.canvas.SelectedLayer()
757            if layer is not None:
758                dlg = JoinDialog(self, _("Join Layer with Table"),
759                                 self.application.session,
760                                 layer = layer)
761                dlg.ShowModal()
762    
763        def LayerUnjoinTable(self):
764            layer = self.canvas.SelectedLayer()
765            if layer is not None:
766                orig_store = layer.ShapeStore().OrigShapeStore()
767                if orig_store:
768                    layer.SetShapeStore(orig_store)
769    
770      def ShowLegend(self):      def ShowLegend(self):
771          if not self.LegendShown():          if not self.LegendShown():
# Line 599  class MainWindow(DockFrame): Line 790  class MainWindow(DockFrame):
790          dialog = self.FindRegisteredDock("legend")          dialog = self.FindRegisteredDock("legend")
791          return dialog is not None and dialog.IsShown()          return dialog is not None and dialog.IsShown()
792    
793        def TableOpen(self):
794            dlg = wxFileDialog(self, _("Open Table"),
795                               self.application.Path("data"), "",
796                               _("DBF Files (*.dbf)") + "|*.dbf|" +
797                               #_("CSV Files (*.csv)") + "|*.csv|" +
798                               _("All Files (*.*)") + "|*.*",
799                               wxOPEN)
800            if dlg.ShowModal() == wxID_OK:
801                filename = dlg.GetPath()
802                dlg.Destroy()
803                try:
804                    table = self.application.session.OpenTableFile(filename)
805                except IOError:
806                    # the layer couldn't be opened
807                    self.RunMessageBox(_("Open Table"),
808                                       _("Can't open the file '%s'.") % filename)
809                else:
810                    self.ShowTableView(table)
811                    self.application.SetPath("data",filename)
812    
813        def TableClose(self):
814            tables = self.application.session.UnreferencedTables()
815    
816            lst = [(t.Title(), t) for t in tables]
817            lst.sort()
818            titles = [i[0] for i in lst]
819            dlg = wxMultipleChoiceDialog(self, _("Pick the tables to close:"),
820                                         _("Close Table"), titles,
821                                         size = (400, 300),
822                                         style = wxDEFAULT_DIALOG_STYLE |
823                                                 wxRESIZE_BORDER)
824            if dlg.ShowModal() == wxID_OK:
825                for i in dlg.GetValue():
826                    self.application.session.RemoveTable(lst[i][1])
827    
828    
829        def TableShow(self):
830            """Offer a multi-selection dialog for tables to be displayed
831    
832            The windows for the selected tables are opened or brought to
833            the front.
834            """
835            tables = self.application.session.Tables()
836    
837            lst = [(t.Title(), t) for t in tables]
838            lst.sort()
839            titles = [i[0] for i in lst]
840            dlg = wxMultipleChoiceDialog(self, _("Pick the table to show:"),
841                                         _("Show Table"), titles,
842                                         size = (400,300),
843                                         style = wxDEFAULT_DIALOG_STYLE |
844                                                 wxRESIZE_BORDER)
845            if (dlg.ShowModal() == wxID_OK):
846                for i in dlg.GetValue():
847                    # XXX: if the table belongs to a layer, open a
848                    # LayerTableFrame instead of QueryTableFrame
849                    self.ShowTableView(lst[i][1])
850    
851        def TableJoin(self):
852            dlg = JoinDialog(self, _("Join Tables"), self.application.session)
853            dlg.ShowModal()
854    
855        def ShowTableView(self, table):
856            """Open a table view for the table and optionally"""
857            name = "table_view%d" % id(table)
858            dialog = self.get_open_dialog(name)
859            if dialog is None:
860                dialog = tableview.QueryTableFrame(self, name,
861                                                   _("Table: %s") % table.Title(),
862                                                   table)
863                self.add_dialog(name, dialog)
864                dialog.Show(True)
865            dialog.Raise()
866    
867        def TableRename(self):
868            """Let the user rename a table"""
869    
870            # First, let the user select a table
871            tables = self.application.session.Tables()
872            lst = [(t.Title(), t) for t in tables]
873            lst.sort()
874            titles = [i[0] for i in lst]
875            dlg = wxMultipleChoiceDialog(self, _("Pick the table to rename:"),
876                                         _("Rename Table"), titles,
877                                         size = (400,300),
878                                         style = wxDEFAULT_DIALOG_STYLE |
879                                                 wxRESIZE_BORDER)
880            if (dlg.ShowModal() == wxID_OK):
881                to_rename = [lst[i][1] for i in dlg.GetValue()]
882                dlg.Destroy()
883            else:
884                to_rename = []
885    
886            # Second, let the user rename the layers
887            for table in to_rename:
888                dlg = wxTextEntryDialog(self, _("Table Title:"), _("Rename Table"),
889                                        table.Title())
890                try:
891                    if dlg.ShowModal() == wxID_OK:
892                        title = dlg.GetValue()
893                        if title != "":
894                            table.SetTitle(title)
895    
896                            # Make sure the session is marked as modified.
897                            # FIXME: This should be handled automatically,
898                            # but that requires more changes to the tables
899                            # than I have time for currently.
900                            self.application.session.changed()
901                finally:
902                    dlg.Destroy()
903    
904    
905      def ZoomInTool(self):      def ZoomInTool(self):
906          self.canvas.ZoomInTool()          self.canvas.ZoomInTool()
907    
# Line 618  class MainWindow(DockFrame): Line 921  class MainWindow(DockFrame):
921      def FullExtent(self):      def FullExtent(self):
922          self.canvas.FitMapToWindow()          self.canvas.FitMapToWindow()
923    
924        def FullLayerExtent(self):
925            self.canvas.FitLayerToWindow(self.current_layer())
926    
927        def FullSelectionExtent(self):
928            self.canvas.FitSelectedToWindow()
929    
930        def ExportMap(self):
931            self.canvas.Export()
932    
933      def PrintMap(self):      def PrintMap(self):
934          self.canvas.Print()          self.canvas.Print()
935    
936      def RenameMap(self):      def RenameMap(self):
937          dlg = wxTextEntryDialog(self, "Map Title: ", "Rename Map",          dlg = wxTextEntryDialog(self, _("Map Title:"), _("Rename Map"),
938                                  self.Map().Title())                                  self.Map().Title())
939          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wxID_OK:
940              title = dlg.GetValue()              title = dlg.GetValue()
941              if title != "":              if title != "":
942                  self.Map().SetTitle(title)                  self.Map().SetTitle(title)
                 self.__SetTitle(title)  
943    
944          dlg.Destroy()          dlg.Destroy()
945    
946        def RenameLayer(self):
947            """Let the user rename the currently selected layer"""
948            layer = self.current_layer()
949            if layer is not None:
950                dlg = wxTextEntryDialog(self, _("Layer Title:"), _("Rename Layer"),
951                                        layer.Title())
952                try:
953                    if dlg.ShowModal() == wxID_OK:
954                        title = dlg.GetValue()
955                        if title != "":
956                            layer.SetTitle(title)
957                finally:
958                    dlg.Destroy()
959    
960      def identify_view_on_demand(self, layer, shapes):      def identify_view_on_demand(self, layer, shapes):
961            """Subscribed to the canvas' SHAPES_SELECTED message
962    
963            If the current tool is the identify tool, at least one shape is
964            selected and the identify dialog is not shown, show the dialog.
965            """
966            # If the selection has become empty we don't need to do
967            # anything. Otherwise it could happen that the dialog was popped
968            # up when the selection became empty, e.g. when a new selection
969            # is opened while the identify tool is active and dialog had
970            # been closed
971            if not shapes:
972                return
973    
974          name = "identify_view"          name = "identify_view"
975          if self.canvas.CurrentTool() == "IdentifyTool":          if self.canvas.CurrentTool() == "IdentifyTool":
976              if not self.dialog_open(name):              if not self.dialog_open(name):
# Line 643  class MainWindow(DockFrame): Line 981  class MainWindow(DockFrame):
981                  # FIXME: bring dialog to front?                  # FIXME: bring dialog to front?
982                  pass                  pass
983    
984      def __SetTitle(self, title):      def title_changed(self, map):
985          self.SetTitle("Thuban - " + title)          """Subscribed to the canvas' TITLE_CHANGED messages"""
986            self.update_title()
987    
988        def update_title(self):
989            """Update the window's title according to it's current state.
990    
991            In this default implementation the title is 'Thuban - ' followed
992            by the map's title or simply 'Thuban' if there is not map.
993            Derived classes should override this method to get different
994            titles.
995    
996            This method is called automatically by other methods when the
997            title may have to change. For the methods implemented in this
998            class this usually only means that a different map has been set
999            or the current map's title has changed.
1000            """
1001            map = self.Map()
1002            if map is not None:
1003                title = _("Thuban - %s") % (map.Title(),)
1004            else:
1005                title = _("Thuban")
1006            self.SetTitle(title)
1007    
1008    
1009  #  #
1010  # Define all the commands available in the main window  # Define all the commands available in the main window
# Line 686  def _has_selected_layer(context): Line 1046  def _has_selected_layer(context):
1046      """Return true if a layer is selected in the context"""      """Return true if a layer is selected in the context"""
1047      return context.mainwindow.has_selected_layer()      return context.mainwindow.has_selected_layer()
1048    
1049    def _has_selected_layer_visible(context):
1050        """Return true if a layer is selected in the context which is
1051        visible."""
1052        if context.mainwindow.has_selected_layer():
1053            layer = context.mainwindow.current_layer()
1054            if layer.Visible(): return True
1055        return False
1056    
1057    def _has_selected_shape_layer(context):
1058        """Return true if a shape layer is selected in the context"""
1059        return context.mainwindow.has_selected_shape_layer()
1060    
1061    def _has_selected_shapes(context):
1062        """Return true if a layer is selected in the context"""
1063        return context.mainwindow.has_selected_shapes()
1064    
1065  def _can_remove_layer(context):  def _can_remove_layer(context):
1066      return context.mainwindow.CanRemoveLayer()      return context.mainwindow.CanRemoveLayer()
1067    
# Line 701  def _has_visible_map(context): Line 1077  def _has_visible_map(context):
1077      if map is not None:      if map is not None:
1078          for layer in map.Layers():          for layer in map.Layers():
1079              if layer.Visible():              if layer.Visible():
1080                  return 1                  return True
1081      return 0      return False
1082    
1083  def _has_legend_shown(context):  def _has_legend_shown(context):
1084      """Return true if the legend window is shown"""      """Return true if the legend window is shown"""
1085      return context.mainwindow.LegendShown()      return context.mainwindow.LegendShown()
1086    
1087    def _has_gdal_support(context):
1088        """Return True if the GDAL is available"""
1089        return Thuban.Model.resource.has_gdal_support()
1090    
1091    def _has_dbconnections(context):
1092        """Return whether the the session has database connections"""
1093        return context.session.HasDBConnections()
1094    
1095    def _has_postgis_support(context):
1096        return has_postgis_support()
1097    
1098    
1099  # File menu  # File menu
1100  _method_command("new_session", _("&New Session"), "NewSession")  _method_command("new_session", _("&New Session"), "NewSession",
1101  _method_command("open_session", _("&Open Session"), "OpenSession")                  helptext = _("Start a new session"))
1102  _method_command("save_session", _("&Save Session"), "SaveSession")  _method_command("open_session", _("&Open Session..."), "OpenSession",
1103  _method_command("save_session_as", _("Save Session &As"), "SaveSessionAs")                  helptext = _("Open a session file"))
1104    _method_command("save_session", _("&Save Session"), "SaveSession",
1105                    helptext =_("Save this session to the file it was opened from"))
1106    _method_command("save_session_as", _("Save Session &As..."), "SaveSessionAs",
1107                    helptext = _("Save this session to a new file"))
1108  _method_command("toggle_session_tree", _("Session &Tree"), "ToggleSessionTree",  _method_command("toggle_session_tree", _("Session &Tree"), "ToggleSessionTree",
1109                  checked = _has_tree_window_shown)                  checked = _has_tree_window_shown,
1110                    helptext = _("Toggle on/off the session tree analysis window"))
1111  _method_command("toggle_legend", _("Legend"), "ToggleLegend",  _method_command("toggle_legend", _("Legend"), "ToggleLegend",
1112                  checked = _has_legend_shown)                  checked = _has_legend_shown,
1113  _method_command("exit", _("E&xit"), "Exit")                  helptext = _("Toggle Legend on/off"))
1114    _method_command("database_management", _("&Database Connections..."),
1115                    "DatabaseManagement",
1116                    sensitive = _has_postgis_support)
1117    _method_command("exit", _("E&xit"), "Exit",
1118                    helptext = _("Finish working with Thuban"))
1119    
1120  # Help menu  # Help menu
1121  _method_command("help_about", _("&About"), "About")  _method_command("help_about", _("&About..."), "About",
1122                    helptext = _("Info about Thuban authors, version and modules"))
1123    
1124    
1125  # Map menu  # Map menu
1126  _method_command("map_projection", _("Pro&jection"), "Projection")  _method_command("map_projection", _("Pro&jection..."), "MapProjection",
1127                    helptext = _("Set or change the map projection"))
1128    
1129  _tool_command("map_zoom_in_tool", _("&Zoom in"), "ZoomInTool", "ZoomInTool",  _tool_command("map_zoom_in_tool", _("&Zoom in"), "ZoomInTool", "ZoomInTool",
1130                helptext = _("Switch to map-mode 'zoom-in'"), icon = "zoom_in",                helptext = _("Switch to map-mode 'zoom-in'"), icon = "zoom_in",
# Line 744  _tool_command("map_label_tool", _("&Labe Line 1143  _tool_command("map_label_tool", _("&Labe
1143                helptext = _("Add/Remove labels"), icon = "label",                helptext = _("Add/Remove labels"), icon = "label",
1144                sensitive = _has_visible_map)                sensitive = _has_visible_map)
1145  _method_command("map_full_extent", _("&Full extent"), "FullExtent",  _method_command("map_full_extent", _("&Full extent"), "FullExtent",
1146                 helptext = _("Full Extent"), icon = "fullextent",                 helptext = _("Zoom to the full map extent"), icon = "fullextent",
1147                sensitive = _has_visible_map)                sensitive = _has_visible_map)
1148    _method_command("layer_full_extent", _("&Full layer extent"), "FullLayerExtent",
1149                    helptext = _("Zoom to the full layer extent"),
1150                    icon = "fulllayerextent", sensitive = _has_selected_layer)
1151    _method_command("selected_full_extent", _("&Full selection extent"),
1152                    "FullSelectionExtent",
1153                    helptext = _("Zoom to the full selection extent"),
1154                    icon = "fullselextent", sensitive = _has_selected_shapes)
1155    _method_command("map_export", _("E&xport"), "ExportMap",
1156                    helptext = _("Export the map to file"))
1157  _method_command("map_print", _("Prin&t"), "PrintMap",  _method_command("map_print", _("Prin&t"), "PrintMap",
1158                  helptext = _("Print the map"))                  helptext = _("Print the map"))
1159  _method_command("map_rename", _("&Rename"), "RenameMap",  _method_command("map_rename", _("&Rename..."), "RenameMap",
1160                  helptext = _("Rename the map"))                  helptext = _("Rename the map"))
1161    _method_command("layer_add", _("&Add Layer..."), "AddLayer",
1162  # Layer menu                  helptext = _("Add a new layer to the map"))
1163  _method_command("layer_add", _("&Add Layer"), "AddLayer",  _method_command("rasterlayer_add", _("&Add Image Layer..."), "AddRasterLayer",
1164                  helptext = _("Add a new layer to active map"))                  helptext = _("Add a new image layer to the map"),
1165                    sensitive = _has_gdal_support)
1166    _method_command("layer_add_db", _("Add &Database Layer..."), "AddDBLayer",
1167                    helptext = _("Add a new database layer to active map"),
1168                    sensitive = _has_dbconnections)
1169  _method_command("layer_remove", _("&Remove Layer"), "RemoveLayer",  _method_command("layer_remove", _("&Remove Layer"), "RemoveLayer",
1170                  helptext = _("Remove selected layer(s)"),                  helptext = _("Remove selected layer"),
1171                  sensitive = _can_remove_layer)                  sensitive = _can_remove_layer)
1172    
1173    # Layer menu
1174    _method_command("layer_projection", _("Pro&jection..."), "LayerProjection",
1175                    sensitive = _has_selected_layer,
1176                    helptext = _("Specify projection for selected layer"))
1177    _method_command("layer_duplicate", _("&Duplicate"), "DuplicateLayer",
1178                    helptext = _("Duplicate selected layer"),
1179              sensitive = lambda context: context.mainwindow.CanDuplicateLayer())
1180    _method_command("layer_rename", _("Re&name ..."), "RenameLayer",
1181                    helptext = _("Rename selected layer"),
1182                    sensitive = _has_selected_layer)
1183  _method_command("layer_raise", _("&Raise"), "RaiseLayer",  _method_command("layer_raise", _("&Raise"), "RaiseLayer",
1184                  helptext = _("Raise selected layer(s)"),                  helptext = _("Raise selected layer"),
1185                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1186  _method_command("layer_lower", _("&Lower"), "LowerLayer",  _method_command("layer_lower", _("&Lower"), "LowerLayer",
1187                  helptext = _("Lower selected layer(s)"),                  helptext = _("Lower selected layer"),
1188                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1189  _method_command("layer_show", _("&Show"), "ShowLayer",  _method_command("layer_show", _("&Show"), "ShowLayer",
1190                  helptext = _("Make selected layer(s) visible"),                  helptext = _("Make selected layer visible"),
1191                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1192  _method_command("layer_hide", _("&Hide"), "HideLayer",  _method_command("layer_hide", _("&Hide"), "HideLayer",
1193                  helptext = _("Make selected layer(s) unvisible"),                  helptext = _("Make selected layer unvisible"),
1194                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1195  _method_command("layer_show_table", _("Show Ta&ble"), "LayerShowTable",  _method_command("layer_show_table", _("Show Ta&ble"), "LayerShowTable",
1196                  helptext = _("Show the selected layer's table"),                  helptext = _("Show the selected layer's table"),
1197                    sensitive = _has_selected_shape_layer)
1198    _method_command("layer_properties", _("&Properties..."), "LayerEditProperties",
1199                    sensitive = _has_selected_layer,
1200                    helptext = _("Edit the properties of the selected layer"))
1201    _method_command("layer_jointable", _("&Join Table..."), "LayerJoinTable",
1202                    sensitive = _has_selected_shape_layer,
1203                    helptext = _("Join and attach a table to the selected layer"))
1204    
1205    # further layer methods:
1206    _method_command("layer_to_top", _("&Top"), "LayerToTop",
1207                    helptext = _("Put selected layer to the top"),
1208                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1209  _method_command("layer_properties", _("Properties"), "LayerEditProperties",  _method_command("layer_to_bottom", _("&Bottom"), "LayerToBottom",
1210                    helptext = _("Put selected layer to the bottom"),
1211                    sensitive = _has_selected_layer)
1212    _method_command("layer_visibility", _("&Visible"), "ToggleLayerVisibility",
1213                    checked = _has_selected_layer_visible,
1214                    helptext = _("Toggle visibility of selected layer"),
1215                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1216    
1217  # the menu structure  def _can_unjoin(context):
1218  main_menu = Menu("<main>", "<main>",      """Return whether the Layer/Unjoin command can be executed.
1219                   [Menu("file", _("&File"),  
1220                         ["new_session", "open_session", None,      This is the case if a layer is selected and that layer has a
1221                          "save_session", "save_session_as", None,      shapestore that has an original shapestore.
1222                          "toggle_session_tree", None,      """
1223                          "exit"]),      layer = context.mainwindow.SelectedLayer()
1224                    Menu("map", _("&Map"),      if layer is None:
1225                         ["layer_add", "layer_remove",          return 0
1226        getstore = getattr(layer, "ShapeStore", None)
1227        if getstore is not None:
1228            return getstore().OrigShapeStore() is not None
1229        else:
1230            return 0
1231    _method_command("layer_unjointable", _("&Unjoin Table..."), "LayerUnjoinTable",
1232                    sensitive = _can_unjoin,
1233                    helptext = _("Undo the last join operation"))
1234    
1235    
1236    def _has_tables(context):
1237        return bool(context.session.Tables())
1238    
1239    # Table menu
1240    _method_command("table_open", _("&Open..."), "TableOpen",
1241                    helptext = _("Open a DBF-table from a file"))
1242    _method_command("table_close", _("&Close..."), "TableClose",
1243           sensitive = lambda context: bool(context.session.UnreferencedTables()),
1244                    helptext = _("Close one or more tables from a list"))
1245    _method_command("table_rename", _("&Rename..."), "TableRename",
1246                    sensitive = _has_tables,
1247                    helptext = _("Rename one or more tables"))
1248    _method_command("table_show", _("&Show..."), "TableShow",
1249                    sensitive = _has_tables,
1250                    helptext = _("Show one or more tables in a dialog"))
1251    _method_command("table_join", _("&Join..."), "TableJoin",
1252                    sensitive = _has_tables,
1253                    helptext = _("Join two tables creating a new one"))
1254    
1255    #  Export only under Windows ...
1256    map_menu = ["layer_add", "layer_add_db", "rasterlayer_add", "layer_remove",
1257                          None,                          None,
1258                            "map_rename",
1259                          "map_projection",                          "map_projection",
1260                          None,                          None,
1261                          "map_zoom_in_tool", "map_zoom_out_tool",                          "map_zoom_in_tool", "map_zoom_out_tool",
1262                          "map_pan_tool", "map_identify_tool", "map_label_tool",                          "map_pan_tool",
                         None,  
1263                          "map_full_extent",                          "map_full_extent",
1264                            "layer_full_extent",
1265                            "selected_full_extent",
1266                          None,                          None,
1267                          "toggle_legend",                          "map_identify_tool", "map_label_tool",
                         None,  
                         "map_print",  
1268                          None,                          None,
1269                          "map_rename"]),                          "toggle_legend",
1270                            None]
1271    if wxPlatform == '__WXMSW__':
1272        map_menu.append("map_export")
1273    map_menu.append("map_print")
1274    
1275    # the menu structure
1276    main_menu = Menu("<main>", "<main>",
1277                     [Menu("file", _("&File"),
1278                           ["new_session", "open_session", None,
1279                            "save_session", "save_session_as", None,
1280                            "database_management", None,
1281                            "toggle_session_tree", None,
1282                            "exit"]),
1283                      Menu("map", _("&Map"), map_menu),
1284                    Menu("layer", _("&Layer"),                    Menu("layer", _("&Layer"),
1285                          ["layer_raise", "layer_lower",                         ["layer_rename", "layer_duplicate",
1286                            None,
1287                            "layer_raise", "layer_lower",
1288                          None,                          None,
1289                          "layer_show", "layer_hide",                          "layer_show", "layer_hide",
1290                          None,                          None,
1291                            "layer_projection",
1292                            None,
1293                          "layer_show_table",                          "layer_show_table",
1294                            "layer_jointable",
1295                            "layer_unjointable",
1296                          None,                          None,
1297                          "layer_properties"]),                          "layer_properties"]),
1298                      Menu("table", _("&Table"),
1299                           ["table_open", "table_close", "table_rename",
1300                           None,
1301                           "table_show",
1302                           None,
1303                           "table_join"]),
1304                    Menu("help", _("&Help"),                    Menu("help", _("&Help"),
1305                         ["help_about"])])                         ["help_about"])])
1306    
# Line 812  main_menu = Menu("<main>", "<main>", Line 1308  main_menu = Menu("<main>", "<main>",
1308    
1309  main_toolbar = Menu("<toolbar>", "<toolbar>",  main_toolbar = Menu("<toolbar>", "<toolbar>",
1310                      ["map_zoom_in_tool", "map_zoom_out_tool", "map_pan_tool",                      ["map_zoom_in_tool", "map_zoom_out_tool", "map_pan_tool",
1311                       "map_full_extent", None,                       "map_full_extent",
1312                         "layer_full_extent",
1313                         "selected_full_extent",
1314                         None,
1315                       "map_identify_tool", "map_label_tool"])                       "map_identify_tool", "map_label_tool"])
1316    
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