/[thuban]/branches/WIP-pyshapelib-bramz/Thuban/UI/mainwindow.py
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revision 640 by jonathan, Thu Apr 10 14:36:08 2003 UTC revision 1464 by bh, Fri Jul 18 18:20:40 2003 UTC
# Line 2  Line 2 
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" #"$THUBAN_0_2$"  __ThubanVersion__ = "0.8" #"$THUBAN_0_2$"
17  #__BuildDate__ = "$Date$"  #__BuildDate__ = "$Date$"
18    
19  import os  import os
20    import copy
21    
22  from wxPython.wx import *  from wxPython.wx import *
23    from wxPython.wx import __version__ as wxPython_version
24    
25  import Thuban  import Thuban
26    import Thuban.version
27    
28  from Thuban import _  from Thuban import _
29  from Thuban.Model.session import create_empty_session  from Thuban.Model.session import create_empty_session
30  from Thuban.Model.layer import Layer  from Thuban.Model.layer import Layer, RasterLayer
31  from Thuban.Model.color import Color  
32  from Thuban.Model.proj import Projection  # XXX: replace this by
33    # from wxPython.lib.dialogs import wxMultipleChoiceDialog
34    # when Thuban does not support wxPython 2.4.0 any more.
35    from Thuban.UI.multiplechoicedialog import wxMultipleChoiceDialog
36    
37  import view  import view
38  import tree  import tree
 import proj4dialog  
39  import tableview, identifyview  import tableview, identifyview
40  from Thuban.UI.classifier import Classifier  from Thuban.UI.classifier import Classifier
41  import legend  import legend
# Line 36  from menu import Menu Line 43  from menu import Menu
43    
44  from context import Context  from context import Context
45  from command import registry, Command, ToolCommand  from command import registry, Command, ToolCommand
46  from messages import LAYER_SELECTED, SHAPES_SELECTED, VIEW_POSITION, DOCKABLE_DOCKED, DOCKABLE_UNDOCKED, DOCKABLE_CLOSED  from messages import LAYER_SELECTED, SHAPES_SELECTED, VIEW_POSITION, \
47         MAP_REPLACED
48  from Thuban.UI.dock import DockableWindow, DockFrame, DockPanel  from about import About
49    
50    from Thuban.UI.dock import DockFrame
51    from Thuban.UI.join import JoinDialog
52    
53  # the directory where the toolbar icons are stored  import resource
54  bitmapdir = os.path.join(Thuban.__path__[0], os.pardir, "Resources", "Bitmaps")  import Thuban.Model.resource
 bitmapext = ".xpm"  
55    
56  ID_WINDOW_LEGEND = 4001  import projdialog
 ID_WINDOW_CANVAS = 4002  
57    
58    
59  class MainWindow(DockFrame):  class MainWindow(DockFrame):
# Line 57  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 101  class MainWindow(DockFrame): Line 111  class MainWindow(DockFrame):
111    
112          self.init_dialogs()          self.init_dialogs()
113    
114          EVT_CLOSE(self, self._OnClose)          self.ShowLegend()
115    
116            EVT_CLOSE(self, self.OnClose)
117    
118      def Subscribe(self, channel, *args):      def Subscribe(self, channel, *args):
119          """Subscribe a function to a message channel.          """Subscribe a function to a message channel.
# Line 243  class MainWindow(DockFrame): Line 255  class MainWindow(DockFrame):
255              command = registry.Command(name)              command = registry.Command(name)
256              if command is not None:              if command is not None:
257                  ID = self.get_id(name)                  ID = self.get_id(name)
258                  filename = os.path.join(bitmapdir, command.Icon()) + bitmapext                  bitmap = resource.GetBitmapResource(command.Icon(),
259                  bitmap = wxBitmap(filename, wxBITMAP_TYPE_XPM)                                                      wxBITMAP_TYPE_XPM)
260                  toolbar.AddTool(ID, bitmap,                  toolbar.AddTool(ID, bitmap,
261                                  shortHelpString = command.HelpText(),                                  shortHelpString = command.HelpText(),
262                                  isToggle = command.IsCheckCommand())                                  isToggle = command.IsCheckCommand())
# Line 354  class MainWindow(DockFrame): Line 366  class MainWindow(DockFrame):
366              result = wxID_NO              result = wxID_NO
367          return result          return result
368    
     def prepare_new_session(self):  
         for d in self.dialogs.values():  
             if not isinstance(d, tree.SessionTreeView):  
                 d.Close()  
   
369      def NewSession(self):      def NewSession(self):
370          self.save_modified_session()          if self.save_modified_session() != wxID_CANCEL:
371          self.prepare_new_session()              self.application.SetSession(create_empty_session())
         self.application.SetSession(create_empty_session())  
372    
373      def OpenSession(self):      def OpenSession(self):
374          self.save_modified_session()          if self.save_modified_session() != wxID_CANCEL:
375          dlg = wxFileDialog(self, _("Open Session"), ".", "", "*.thuban", wxOPEN)              dlg = wxFileDialog(self, _("Open Session"), ".", "",
376          if dlg.ShowModal() == wxID_OK:                                 "Thuban Session File (*.thuban)|*.thuban",
377              self.prepare_new_session()                                 wxOPEN)
378              self.application.OpenSession(dlg.GetPath())              if dlg.ShowModal() == wxID_OK:
379          dlg.Destroy()                  self.application.OpenSession(dlg.GetPath())
380                dlg.Destroy()
381    
382      def SaveSession(self):      def SaveSession(self):
383          if self.application.session.filename == None:          if self.application.session.filename == None:
# Line 380  class MainWindow(DockFrame): Line 387  class MainWindow(DockFrame):
387    
388      def SaveSessionAs(self):      def SaveSessionAs(self):
389          dlg = wxFileDialog(self, _("Save Session As"), ".", "",          dlg = wxFileDialog(self, _("Save Session As"), ".", "",
390                             "*.thuban", wxOPEN)                             "Thuban Session File (*.thuban)|*.thuban",
391                               wxSAVE|wxOVERWRITE_PROMPT)
392          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wxID_OK:
393              self.application.session.SetFilename(dlg.GetPath())              self.application.session.SetFilename(dlg.GetPath())
394              self.application.SaveSession()              self.application.SaveSession()
# Line 389  class MainWindow(DockFrame): Line 397  class MainWindow(DockFrame):
397      def Exit(self):      def Exit(self):
398          self.Close(False)          self.Close(False)
399    
400      def _OnClose(self, event):      def OnClose(self, event):
401          result = self.save_modified_session(can_veto = event.CanVeto())          result = self.save_modified_session(can_veto = event.CanVeto())
402          if result == wxID_CANCEL:          if result == wxID_CANCEL:
403              event.Veto()              event.Veto()
# Line 398  class MainWindow(DockFrame): Line 406  class MainWindow(DockFrame):
406              # wx's destroy event, but that isn't implemented for wxGTK              # wx's destroy event, but that isn't implemented for wxGTK
407              # yet.              # yet.
408              self.canvas.Unsubscribe(VIEW_POSITION, self.view_position_changed)              self.canvas.Unsubscribe(VIEW_POSITION, self.view_position_changed)
409              DockFrame._OnClose(self, event)              DockFrame.OnClose(self, event)
410                for dlg in self.dialogs.values():
411                    dlg.Destroy()
412                self.canvas.Destroy()
413              self.Destroy()              self.Destroy()
414    
415      def SetMap(self, map):      def SetMap(self, map):
416          self.canvas.SetMap(map)          self.canvas.SetMap(map)
417          self.SetTitle("Thuban - " + map.Title())          self.__SetTitle(map.Title())
418          #self.legendPanel.SetMap(map)  
419            dialog = self.FindRegisteredDock("legend")
420            if dialog is not None:
421                dialog.GetPanel().SetMap(self.Map())
422    
423      def Map(self):      def Map(self):
424          """Return the map displayed by this mainwindow"""          """Return the map displayed by this mainwindow"""
425    
         # sanity check  
         #assert(self.canvas.Map() is self.legendPanel.GetMap())  
   
426          return self.canvas.Map()          return self.canvas.Map()
427    
428      def ToggleSessionTree(self):      def ToggleSessionTree(self):
# Line 430  class MainWindow(DockFrame): Line 441  class MainWindow(DockFrame):
441          return self.get_open_dialog("session_tree") is not None          return self.get_open_dialog("session_tree") is not None
442    
443      def About(self):      def About(self):
444          self.RunMessageBox(_("About"),          dlg = About(self)
445                             _("Thuban v%s\n"          dlg.ShowModal()
446                              #"Build Date: %s\n"          dlg.Destroy()
                             "\n"  
                             "Thuban is a program for\n"  
                             "exploring geographic data.\n"  
                             "Copyright (C) 2001-2003 Intevation GmbH.\n"  
                             "Thuban is licensed under the GNU GPL"  
                            % __ThubanVersion__), #__BuildDate__)),  
                            wxOK | wxICON_INFORMATION)  
447    
448      def AddLayer(self):      def AddLayer(self):
449          dlg = wxFileDialog(self, _("Select a data file"), ".", "", "*.*",          dlg = wxFileDialog(self, _("Select a data file"), ".", "", "*.*",
# Line 447  class MainWindow(DockFrame): Line 451  class MainWindow(DockFrame):
451          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wxID_OK:
452              filename = dlg.GetPath()              filename = dlg.GetPath()
453              title = os.path.splitext(os.path.basename(filename))[0]              title = os.path.splitext(os.path.basename(filename))[0]
             layer = Layer(title, filename)  
454              map = self.canvas.Map()              map = self.canvas.Map()
455              has_layers = map.HasLayers()              has_layers = map.HasLayers()
456              try:              try:
457                  map.AddLayer(layer)                  store = self.application.Session().OpenShapefile(filename)
458              except IOError:              except IOError:
459                  # the layer couldn't be opened                  # the layer couldn't be opened
460                  self.RunMessageBox(_("Add Layer"),                  self.RunMessageBox(_("Add Layer"),
461                                     _("Can't open the file '%s'.") % filename)                                     _("Can't open the file '%s'.") % filename)
462              else:              else:
463                    layer = Layer(title, store)
464                    map.AddLayer(layer)
465                    if not has_layers:
466                        # if we're adding a layer to an empty map, fit the
467                        # new map to the window
468                        self.canvas.FitMapToWindow()
469            dlg.Destroy()
470    
471        def AddRasterLayer(self):
472            dlg = wxFileDialog(self, _("Select an image file"), ".", "", "*.*",
473                               wxOPEN)
474            if dlg.ShowModal() == wxID_OK:
475                filename = dlg.GetPath()
476                title = os.path.splitext(os.path.basename(filename))[0]
477                map = self.canvas.Map()
478                has_layers = map.HasLayers()
479                try:
480                    layer = RasterLayer(title, filename)
481                except IOError:
482                    # the layer couldn't be opened
483                    self.RunMessageBox(_("Add Image Layer"),
484                                       _("Can't open the file '%s'.") % filename)
485                else:
486                    map.AddLayer(layer)
487                  if not has_layers:                  if not has_layers:
488                      # if we're adding a layer to an empty map, fit the                      # if we're adding a layer to an empty map, fit the
489                      # new map to the window                      # new map to the window
# Line 502  class MainWindow(DockFrame): Line 529  class MainWindow(DockFrame):
529          """Return true if a layer is currently selected"""          """Return true if a layer is currently selected"""
530          return self.canvas.HasSelectedLayer()          return self.canvas.HasSelectedLayer()
531    
532      def choose_color(self):      def has_selected_shapes(self):
533          """Run the color selection dialog and return the selected color.          """Return true if a shape is currently selected"""
534            return self.canvas.HasSelectedShapes()
         If the user cancels, return None.  
         """  
         dlg = wxColourDialog(self)  
         color = None  
         if dlg.ShowModal() == wxID_OK:  
             data = dlg.GetColourData()  
             wxc = data.GetColour()  
             color = Color(wxc.Red() / 255.0,  
                           wxc.Green() / 255.0,  
                           wxc.Blue() / 255.0)  
         dlg.Destroy()  
         return color  
535    
536      def HideLayer(self):      def HideLayer(self):
537          layer = self.current_layer()          layer = self.current_layer()
538          if layer is not None:          if layer is not None:
539              layer.SetVisible(0)              layer.SetVisible(0)
540            
541      def ShowLayer(self):      def ShowLayer(self):
542          layer = self.current_layer()          layer = self.current_layer()
543          if layer is not None:          if layer is not None:
544              layer.SetVisible(1)              layer.SetVisible(1)
545    
546        def DuplicateLayer(self):
547            """Ceate a new layer above the selected layer with the same shapestore
548            """
549            layer = self.current_layer()
550            if layer is not None and hasattr(layer, "ShapeStore"):
551                new_layer = Layer(_("Copy of `%s'") % layer.Title(),
552                                  layer.ShapeStore(),
553                                  projection = layer.GetProjection())
554                new_classification = copy.deepcopy(layer.GetClassification())
555                new_layer.SetClassification(new_classification)
556                self.Map().AddLayer(new_layer)
557    
558        def CanDuplicateLayer(self):
559            """Return whether the DuplicateLayer method can create a duplicate"""
560            layer = self.current_layer()
561            return layer is not None and hasattr(layer, "ShapeStore")
562    
563      def LayerShowTable(self):      def LayerShowTable(self):
564          layer = self.current_layer()          layer = self.current_layer()
565          if layer is not None:          if layer is not None:
566              table = layer.table              table = layer.ShapeStore().Table()
567              name = "table_view" + str(id(table))              name = "table_view" + str(id(table))
568              dialog = self.get_open_dialog(name)              dialog = self.get_open_dialog(name)
569              if dialog is None:              if dialog is None:
570                  dialog = tableview.LayerTableFrame(self, name,                  dialog = tableview.LayerTableFrame(self, name,
571                                                 _("Table: %s") % layer.Title(),                                           _("Layer Table: %s") % layer.Title(),
572                                                     layer, table)                                           layer, table)
573                  self.add_dialog(name, dialog)                  self.add_dialog(name, dialog)
574                  dialog.Show(true)                  dialog.Show(True)
575              else:              else:
576                  # FIXME: bring dialog to front here                  # FIXME: bring dialog to front here
577                  pass                  pass
578    
579      def Projection(self):      def MapProjection(self):
580          map = self.canvas.Map()  
581          proj = map.projection          name = "map_projection"
582          if proj is None:          dialog = self.get_open_dialog(name)
583              proj4Dlg = proj4dialog.Proj4Dialog(NULL, None, map.BoundingBox())  
584          else:          if dialog is None:
585              proj4Dlg = proj4dialog.Proj4Dialog(NULL, map.projection.params,              map = self.canvas.Map()
586                                                 map.BoundingBox())              dialog = projdialog.ProjFrame(self, name,
587          if proj4Dlg.ShowModal() == wxID_OK:                       _("Map Projection: %s") % map.Title(), map)
588              params = proj4Dlg.GetParams()              self.add_dialog(name, dialog)
589              if params is not None:              dialog.Show()
590                  proj = Projection(params)          dialog.Raise()
591              else:  
592                  proj = None      def LayerProjection(self):
593              map.SetProjection(proj)  
594          proj4Dlg.Destroy()          layer = self.current_layer()
595    
596            name = "layer_projection" + str(id(layer))
597            dialog = self.get_open_dialog(name)
598    
599            if dialog is None:
600                map = self.canvas.Map()
601                dialog = projdialog.ProjFrame(self, name,
602                         _("Layer Projection: %s") % layer.Title(), layer)
603                self.add_dialog(name, dialog)
604                dialog.Show()
605            dialog.Raise()
606    
607      def LayerEditProperties(self):      def LayerEditProperties(self):
608    
# Line 577  class MainWindow(DockFrame): Line 620  class MainWindow(DockFrame):
620          dialog = self.get_open_dialog(name)          dialog = self.get_open_dialog(name)
621    
622          if dialog is None:          if dialog is None:
623              dialog = Classifier(self, name, layer, group)              dialog = Classifier(self, name, self.Map(), layer, group)
624              self.add_dialog(name, dialog)              self.add_dialog(name, dialog)
625              dialog.Show()              dialog.Show()
626          dialog.Raise()          dialog.Raise()
627    
628        def LayerJoinTable(self):
629            layer = self.canvas.SelectedLayer()
630            if layer is not None:
631                dlg = JoinDialog(self, _("Join Layer with Table"),
632                                 self.application.session,
633                                 layer = layer)
634                dlg.ShowModal()
635    
636        def LayerUnjoinTable(self):
637            layer = self.canvas.SelectedLayer()
638            if layer is not None:
639                orig_store = layer.ShapeStore().OrigShapeStore()
640                if orig_store:
641                    layer.SetShapeStore(orig_store)
642    
643      def ShowLegend(self):      def ShowLegend(self):
644          if not self.LegendShown():          if not self.LegendShown():
# Line 606  class MainWindow(DockFrame): Line 663  class MainWindow(DockFrame):
663          dialog = self.FindRegisteredDock("legend")          dialog = self.FindRegisteredDock("legend")
664          return dialog is not None and dialog.IsShown()          return dialog is not None and dialog.IsShown()
665    
666        def TableOpen(self):
667            dlg = wxFileDialog(self, _("Open Table"), ".", "",
668                               _("DBF Files (*.dbf)") + "|*.dbf|" +
669                               #_("CSV Files (*.csv)") + "|*.csv|" +
670                               _("All Files (*.*)") + "|*.*",
671                               wxOPEN)
672            if dlg.ShowModal() == wxID_OK:
673                filename = dlg.GetPath()
674                dlg.Destroy()
675                try:
676                    table = self.application.session.OpenTableFile(filename)
677                except IOError:
678                    # the layer couldn't be opened
679                    self.RunMessageBox(_("Open Table"),
680                                       _("Can't open the file '%s'.") % filename)
681                else:
682                    self.ShowTableView(table)
683    
684        def TableClose(self):
685            tables = self.application.session.UnreferencedTables()
686    
687            lst = [(t.Title(), t) for t in tables]
688            lst.sort()
689            titles = [i[0] for i in lst]
690            dlg = wxMultipleChoiceDialog(self, _("Pick the tables to close:"),
691                                         _("Close Table"), titles,
692                                         size = (400, 300),
693                                         style = wxDEFAULT_DIALOG_STYLE |
694                                                 wxRESIZE_BORDER)
695            if dlg.ShowModal() == wxID_OK:
696                for i in dlg.GetValue():
697                    self.application.session.RemoveTable(lst[i][1])
698    
699    
700        def TableShow(self):
701            """Offer a multi-selection dialog for tables to be displayed
702    
703            The windows for the selected tables are opened or brought to
704            the front.
705            """
706            tables = self.application.session.Tables()
707    
708            lst = [(t.Title(), t) for t in tables]
709            lst.sort()
710            titles = [i[0] for i in lst]
711            dlg = wxMultipleChoiceDialog(self, _("Pick the table to show:"),
712                                         _("Show Table"), titles,
713                                         size = (400,300),
714                                         style = wxDEFAULT_DIALOG_STYLE |
715                                                 wxRESIZE_BORDER)
716            if (dlg.ShowModal() == wxID_OK):
717                for i in dlg.GetValue():
718                    # XXX: if the table belongs to a layer, open a
719                    # LayerTableFrame instead of QueryTableFrame
720                    self.ShowTableView(lst[i][1])
721    
722        def TableJoin(self):
723            dlg = JoinDialog(self, _("Join Tables"), self.application.session)
724            dlg.ShowModal()
725    
726        def ShowTableView(self, table):
727            """Open a table view for the table and optionally"""
728            name = "table_view%d" % id(table)
729            dialog = self.get_open_dialog(name)
730            if dialog is None:
731                dialog = tableview.QueryTableFrame(self, name,
732                                                   _("Table: %s") % table.Title(),
733                                                   table)
734                self.add_dialog(name, dialog)
735                dialog.Show(True)
736            dialog.Raise()
737    
738        def TableRename(self):
739            """Let the user rename a table"""
740    
741            # First, let the user select a table
742            tables = self.application.session.Tables()
743            lst = [(t.Title(), t) for t in tables]
744            lst.sort()
745            titles = [i[0] for i in lst]
746            dlg = wxMultipleChoiceDialog(self, _("Pick the table to rename:"),
747                                         _("Rename Table"), titles,
748                                         size = (400,300),
749                                         style = wxDEFAULT_DIALOG_STYLE |
750                                                 wxRESIZE_BORDER)
751            if (dlg.ShowModal() == wxID_OK):
752                to_rename = [lst[i][1] for i in dlg.GetValue()]
753                dlg.Destroy()
754            else:
755                to_rename = []
756    
757            # Second, let the user rename the layers
758            for table in to_rename:
759                dlg = wxTextEntryDialog(self, "Table Title: ", "Rename Table",
760                                        table.Title())
761                try:
762                    if dlg.ShowModal() == wxID_OK:
763                        title = dlg.GetValue()
764                        if title != "":
765                            table.SetTitle(title)
766    
767                            # Make sure the session is marked as modified.
768                            # FIXME: This should be handled automatically,
769                            # but that requires more changes to the tables
770                            # than I have time for currently.
771                            self.application.session.changed()
772                finally:
773                    dlg.Destroy()
774    
775    
776      def ZoomInTool(self):      def ZoomInTool(self):
777          self.canvas.ZoomInTool()          self.canvas.ZoomInTool()
778    
# Line 625  class MainWindow(DockFrame): Line 792  class MainWindow(DockFrame):
792      def FullExtent(self):      def FullExtent(self):
793          self.canvas.FitMapToWindow()          self.canvas.FitMapToWindow()
794    
795        def FullLayerExtent(self):
796            self.canvas.FitLayerToWindow(self.current_layer())
797    
798        def FullSelectionExtent(self):
799            self.canvas.FitSelectedToWindow()
800    
801        def ExportMap(self):
802            self.canvas.Export()
803    
804      def PrintMap(self):      def PrintMap(self):
805          self.canvas.Print()          self.canvas.Print()
806    
807        def RenameMap(self):
808            dlg = wxTextEntryDialog(self, "Map Title: ", "Rename Map",
809                                    self.Map().Title())
810            if dlg.ShowModal() == wxID_OK:
811                title = dlg.GetValue()
812                if title != "":
813                    self.Map().SetTitle(title)
814                    self.__SetTitle(title)
815    
816            dlg.Destroy()
817    
818        def RenameLayer(self):
819            """Let the user rename the currently selected layer"""
820            layer = self.current_layer()
821            if layer is not None:
822                dlg = wxTextEntryDialog(self, "Layer Title: ", "Rename Layer",
823                                        layer.Title())
824                try:
825                    if dlg.ShowModal() == wxID_OK:
826                        title = dlg.GetValue()
827                        if title != "":
828                            layer.SetTitle(title)
829                finally:
830                    dlg.Destroy()
831    
832      def identify_view_on_demand(self, layer, shapes):      def identify_view_on_demand(self, layer, shapes):
833            """Subscribed to the canvas' SHAPES_SELECTED message
834    
835            If the current tool is the identify tool, at least one shape is
836            selected and the identify dialog is not shown, show the dialog.
837            """
838            # If the selection has become empty we don't need to do
839            # anything. Otherwise it could happen that the dialog was popped
840            # up when the selection became empty, e.g. when a new selection
841            # is opened while the identify tool is active and dialog had
842            # been closed
843            if not shapes:
844                return
845    
846          name = "identify_view"          name = "identify_view"
847          if self.canvas.CurrentTool() == "IdentifyTool":          if self.canvas.CurrentTool() == "IdentifyTool":
848              if not self.dialog_open(name):              if not self.dialog_open(name):
# Line 639  class MainWindow(DockFrame): Line 853  class MainWindow(DockFrame):
853                  # FIXME: bring dialog to front?                  # FIXME: bring dialog to front?
854                  pass                  pass
855    
856        def __SetTitle(self, title):
857            self.SetTitle("Thuban - " + title)
858    
859  #  #
860  # Define all the commands available in the main window  # Define all the commands available in the main window
861  #  #
# Line 679  def _has_selected_layer(context): Line 896  def _has_selected_layer(context):
896      """Return true if a layer is selected in the context"""      """Return true if a layer is selected in the context"""
897      return context.mainwindow.has_selected_layer()      return context.mainwindow.has_selected_layer()
898    
899    def _has_selected_shapes(context):
900        """Return true if a layer is selected in the context"""
901        return context.mainwindow.has_selected_shapes()
902    
903  def _can_remove_layer(context):  def _can_remove_layer(context):
904      return context.mainwindow.CanRemoveLayer()      return context.mainwindow.CanRemoveLayer()
905    
# Line 701  def _has_legend_shown(context): Line 922  def _has_legend_shown(context):
922      """Return true if the legend window is shown"""      """Return true if the legend window is shown"""
923      return context.mainwindow.LegendShown()      return context.mainwindow.LegendShown()
924    
925    def _has_gdal_support(context):
926        """Return True if the GDAL is available"""
927        return Thuban.Model.resource.has_gdal_support()
928    
929  # File menu  # File menu
930  _method_command("new_session", _("&New Session"), "NewSession")  _method_command("new_session", _("&New Session"), "NewSession",
931  _method_command("open_session", _("&Open Session"), "OpenSession")                  helptext = _("Start a new session"))
932  _method_command("save_session", _("&Save Session"), "SaveSession")  _method_command("open_session", _("&Open Session..."), "OpenSession",
933  _method_command("save_session_as", _("Save Session &As"), "SaveSessionAs")                  helptext = _("Open a session file"))
934    _method_command("save_session", _("&Save Session"), "SaveSession",
935                    helptext =_("Save this session to the file it was opened from"))
936    _method_command("save_session_as", _("Save Session &As..."), "SaveSessionAs",
937                    helptext = _("Save this session to a new file"))
938  _method_command("toggle_session_tree", _("Session &Tree"), "ToggleSessionTree",  _method_command("toggle_session_tree", _("Session &Tree"), "ToggleSessionTree",
939                  checked = _has_tree_window_shown)                  checked = _has_tree_window_shown,
940                    helptext = _("Toggle on/off the session tree analysis window"))
941  _method_command("toggle_legend", _("Legend"), "ToggleLegend",  _method_command("toggle_legend", _("Legend"), "ToggleLegend",
942                  checked = _has_legend_shown)                  checked = _has_legend_shown,
943  _method_command("exit", _("E&xit"), "Exit")                  helptext = _("Toggle Legend on/off"))
944    _method_command("exit", _("E&xit"), "Exit",
945                    helptext = _("Finish working with Thuban"))
946    
947  # Help menu  # Help menu
948  _method_command("help_about", _("&About"), "About")  _method_command("help_about", _("&About..."), "About",
949                    helptext = _("Info about Thuban authors, version and modules"))
950    
951    
952  # Map menu  # Map menu
953  _method_command("map_projection", _("Pro&jection"), "Projection")  _method_command("map_projection", _("Pro&jection..."), "MapProjection",
954                    helptext = _("Set or change the map projection"))
955    
956  _tool_command("map_zoom_in_tool", _("&Zoom in"), "ZoomInTool", "ZoomInTool",  _tool_command("map_zoom_in_tool", _("&Zoom in"), "ZoomInTool", "ZoomInTool",
957                helptext = _("Switch to map-mode 'zoom-in'"), icon = "zoom_in",                helptext = _("Switch to map-mode 'zoom-in'"), icon = "zoom_in",
# Line 737  _tool_command("map_label_tool", _("&Labe Line 970  _tool_command("map_label_tool", _("&Labe
970                helptext = _("Add/Remove labels"), icon = "label",                helptext = _("Add/Remove labels"), icon = "label",
971                sensitive = _has_visible_map)                sensitive = _has_visible_map)
972  _method_command("map_full_extent", _("&Full extent"), "FullExtent",  _method_command("map_full_extent", _("&Full extent"), "FullExtent",
973                 helptext = _("Full Extent"), icon = "fullextent",                 helptext = _("Zoom to the full map extent"), icon = "fullextent",
974                sensitive = _has_visible_map)                sensitive = _has_visible_map)
975    _method_command("layer_full_extent", _("&Full layer extent"), "FullLayerExtent",
976                    helptext = _("Zoom to the full layer extent"),
977                    icon = "fulllayerextent", sensitive = _has_selected_layer)
978    _method_command("selected_full_extent", _("&Full selection extent"),
979                    "FullSelectionExtent",
980                    helptext = _("Zoom to the full selection extent"),
981                    icon = "fullselextent", sensitive = _has_selected_shapes)
982    _method_command("map_export", _("E&xport"), "ExportMap",
983                    helptext = _("Export the map to file"))
984  _method_command("map_print", _("Prin&t"), "PrintMap",  _method_command("map_print", _("Prin&t"), "PrintMap",
985                  helptext = _("Print the map"))                  helptext = _("Print the map"))
986    _method_command("map_rename", _("&Rename..."), "RenameMap",
987  # Layer menu                  helptext = _("Rename the map"))
988  _method_command("layer_add", _("&Add Layer"), "AddLayer",  _method_command("layer_add", _("&Add Layer..."), "AddLayer",
989                  helptext = _("Add a new layer to active map"))                  helptext = _("Add a new layer to the map"))
990    _method_command("rasterlayer_add", _("&Add Image Layer..."), "AddRasterLayer",
991                    helptext = _("Add a new image layer to the map"),
992                    sensitive = _has_gdal_support)
993  _method_command("layer_remove", _("&Remove Layer"), "RemoveLayer",  _method_command("layer_remove", _("&Remove Layer"), "RemoveLayer",
994                  helptext = _("Remove selected layer(s)"),                  helptext = _("Remove selected layer"),
995                  sensitive = _can_remove_layer)                  sensitive = _can_remove_layer)
996    
997    # Layer menu
998    _method_command("layer_projection", _("Pro&jection..."), "LayerProjection",
999                    sensitive = _has_selected_layer,
1000                    helptext = _("Specify projection for selected layer"))
1001    _method_command("layer_duplicate", _("&Duplicate"), "DuplicateLayer",
1002                    helptext = _("Duplicate selected layer"),
1003              sensitive = lambda context: context.mainwindow.CanDuplicateLayer())
1004    _method_command("layer_rename", _("Re&name ..."), "RenameLayer",
1005                    helptext = _("Rename selected layer"),
1006                    sensitive = _has_selected_layer)
1007  _method_command("layer_raise", _("&Raise"), "RaiseLayer",  _method_command("layer_raise", _("&Raise"), "RaiseLayer",
1008                  helptext = _("Raise selected layer(s)"),                  helptext = _("Raise selected layer"),
1009                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1010  _method_command("layer_lower", _("&Lower"), "LowerLayer",  _method_command("layer_lower", _("&Lower"), "LowerLayer",
1011                  helptext = _("Lower selected layer(s)"),                  helptext = _("Lower selected layer"),
1012                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1013  _method_command("layer_show", _("&Show"), "ShowLayer",  _method_command("layer_show", _("&Show"), "ShowLayer",
1014                  helptext = _("Make selected layer(s) visible"),                  helptext = _("Make selected layer visible"),
1015                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1016  _method_command("layer_hide", _("&Hide"), "HideLayer",  _method_command("layer_hide", _("&Hide"), "HideLayer",
1017                  helptext = _("Make selected layer(s) unvisible"),                  helptext = _("Make selected layer unvisible"),
1018                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1019  _method_command("layer_show_table", _("Show Ta&ble"), "LayerShowTable",  _method_command("layer_show_table", _("Show Ta&ble"), "LayerShowTable",
1020                  helptext = _("Show the selected layer's table"),                  helptext = _("Show the selected layer's table"),
1021                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1022  _method_command("layer_properties", _("Properties"), "LayerEditProperties",  _method_command("layer_properties", _("&Properties..."), "LayerEditProperties",
1023                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer,
1024                    helptext = _("Edit the properties of the selected layer"))
1025    _method_command("layer_jointable", _("&Join Table..."), "LayerJoinTable",
1026                    sensitive = _has_selected_layer,
1027                    helptext = _("Join and attach a table to the selected layer"))
1028    
1029  # the menu structure  def _can_unjoin(context):
1030  main_menu = Menu("<main>", "<main>",      """Return whether the Layer/Unjoin command can be executed.
1031                   [Menu("file", _("&File"),  
1032                         ["new_session", "open_session", None,      This is the case if a layer is selected and that layer has a
1033                          "save_session", "save_session_as", None,      shapestore that has an original shapestore.
1034                          "toggle_session_tree", None,      """
1035                          "exit"]),      layer = context.mainwindow.SelectedLayer()
1036                    Menu("map", _("&Map"),      if layer is None:
1037                         ["layer_add", "layer_remove",          return 0
1038        getstore = getattr(layer, "ShapeStore", None)
1039        if getstore is not None:
1040            return getstore().OrigShapeStore() is not None
1041        else:
1042            return 0
1043    _method_command("layer_unjointable", _("&Unjoin Table..."), "LayerUnjoinTable",
1044                    sensitive = _can_unjoin,
1045                    helptext = _("Undo the last join operation"))
1046    
1047    
1048    def _has_tables(context):
1049        return bool(context.session.Tables())
1050    
1051    # Table menu
1052    _method_command("table_open", _("&Open..."), "TableOpen",
1053                    helptext = _("Open a DBF-table from a file"))
1054    _method_command("table_close", _("&Close..."), "TableClose",
1055           sensitive = lambda context: bool(context.session.UnreferencedTables()),
1056                    helptext = _("Close one or more tables from a list"))
1057    _method_command("table_rename", _("&Rename..."), "TableRename",
1058                    sensitive = _has_tables,
1059                    helptext = _("Rename one or more tables"))
1060    _method_command("table_show", _("&Show..."), "TableShow",
1061                    sensitive = _has_tables,
1062                    helptext = _("Show one or more tables in a dialog"))
1063    _method_command("table_join", _("&Join..."), "TableJoin",
1064                    sensitive = _has_tables,
1065                    helptext = _("Join two tables creating a new one"))
1066    
1067    #  Export only under Windows ...
1068    map_menu = ["layer_add", "rasterlayer_add", "layer_remove",
1069                          None,                          None,
1070                            "map_rename",
1071                          "map_projection",                          "map_projection",
1072                          None,                          None,
1073                          "map_zoom_in_tool", "map_zoom_out_tool",                          "map_zoom_in_tool", "map_zoom_out_tool",
1074                          "map_pan_tool", "map_identify_tool", "map_label_tool",                          "map_pan_tool",
1075                            "map_full_extent",
1076                            "layer_full_extent",
1077                            "selected_full_extent",
1078                          None,                          None,
1079                          "map_full_extent",                          "map_identify_tool", "map_label_tool",
1080                          None,                          None,
1081                          "toggle_legend",                          "toggle_legend",
1082                          None,                          None]
1083                          "map_print"]),  if wxPlatform == '__WXMSW__':
1084        map_menu.append("map_export")
1085    map_menu.append("map_print")
1086    
1087    # the menu structure
1088    main_menu = Menu("<main>", "<main>",
1089                     [Menu("file", _("&File"),
1090                           ["new_session", "open_session", None,
1091                            "save_session", "save_session_as", None,
1092                            "toggle_session_tree", None,
1093                            "exit"]),
1094                      Menu("map", _("&Map"), map_menu),
1095                    Menu("layer", _("&Layer"),                    Menu("layer", _("&Layer"),
1096                          ["layer_raise", "layer_lower",                         ["layer_rename", "layer_duplicate",
1097                            None,
1098                            "layer_raise", "layer_lower",
1099                          None,                          None,
1100                          "layer_show", "layer_hide",                          "layer_show", "layer_hide",
1101                          None,                          None,
1102                            "layer_projection",
1103                            None,
1104                          "layer_show_table",                          "layer_show_table",
1105                            "layer_jointable",
1106                            "layer_unjointable",
1107                          None,                          None,
1108                          "layer_properties"]),                          "layer_properties"]),
1109                      Menu("table", _("&Table"),
1110                           ["table_open", "table_close", "table_rename",
1111                           None,
1112                           "table_show",
1113                           None,
1114                           "table_join"]),
1115                    Menu("help", _("&Help"),                    Menu("help", _("&Help"),
1116                         ["help_about"])])                         ["help_about"])])
1117    
# Line 801  main_menu = Menu("<main>", "<main>", Line 1119  main_menu = Menu("<main>", "<main>",
1119    
1120  main_toolbar = Menu("<toolbar>", "<toolbar>",  main_toolbar = Menu("<toolbar>", "<toolbar>",
1121                      ["map_zoom_in_tool", "map_zoom_out_tool", "map_pan_tool",                      ["map_zoom_in_tool", "map_zoom_out_tool", "map_pan_tool",
1122                       "map_full_extent", None,                       "map_full_extent",
1123                         "layer_full_extent",
1124                         "selected_full_extent",
1125                         None,
1126                       "map_identify_tool", "map_label_tool"])                       "map_identify_tool", "map_label_tool"])
1127    
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