/[thuban]/branches/WIP-pyshapelib-bramz/Thuban/UI/mainwindow.py
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revision 621 by jonathan, Mon Apr 7 10:14:50 2003 UTC revision 2051 by frank, Wed Jan 21 17:09:15 2004 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 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
38  import classifier  from Thuban.UI.classifier import Classifier
39  import legend  import legend
40  from menu import Menu  from menu import Menu
41    
42  from context import Context  from context import Context
43  from command import registry, Command, ToolCommand  from command import registry, Command, ToolCommand
44  from messages import LAYER_SELECTED, SHAPES_SELECTED, VIEW_POSITION, DOCKABLE_DOCKED, DOCKABLE_UNDOCKED, DOCKABLE_CLOSED  from messages import LAYER_SELECTED, SHAPES_SELECTED, VIEW_POSITION, \
45         MAP_REPLACED
46  from Thuban.UI.dock import DockableWindow, DockFrame, DockPanel  from about import About
47    
48    from Thuban.UI.dock import DockFrame
49    from Thuban.UI.join import JoinDialog
50    from Thuban.UI.dbdialog import DBFrame, DBDialog, ChooseDBTableDialog
51    import resource
52    import Thuban.Model.resource
53    
54    import projdialog
 # the directory where the toolbar icons are stored  
 bitmapdir = os.path.join(Thuban.__path__[0], os.pardir, "Resources", "Bitmaps")  
 bitmapext = ".xpm"  
   
 ID_WINDOW_LEGEND = 4001  
 ID_WINDOW_CANVAS = 4002  
55    
56    
57  class MainWindow(DockFrame):  class MainWindow(DockFrame):
# Line 57  class MainWindow(DockFrame): Line 62  class MainWindow(DockFrame):
62      # actually come from. This delegation is implemented in the      # actually come from. This delegation is implemented in the
63      # Subscribe and unsubscribed methods      # Subscribe and unsubscribed methods
64      delegated_messages = {LAYER_SELECTED: "canvas",      delegated_messages = {LAYER_SELECTED: "canvas",
65                            SHAPES_SELECTED: "canvas"}                            SHAPES_SELECTED: "canvas",
66                              MAP_REPLACED: "canvas"}
67    
68      # Methods delegated to some instance variables. The delegation is      # Methods delegated to some instance variables. The delegation is
69      # implemented in the __getattr__ method.      # implemented in the __getattr__ method.
70      delegated_methods = {"SelectLayer": "canvas",      delegated_methods = {"SelectLayer": "canvas",
71                           "SelectShapes": "canvas",                           "SelectShapes": "canvas",
72                             "SelectedLayer": "canvas",
73                             "SelectedShapes": "canvas",
74                           }                           }
75    
76      def __init__(self, parent, ID, title, application, interactor,      def __init__(self, parent, ID, title, application, interactor,
# Line 94  class MainWindow(DockFrame): Line 102  class MainWindow(DockFrame):
102          canvas.Subscribe(VIEW_POSITION, self.view_position_changed)          canvas.Subscribe(VIEW_POSITION, self.view_position_changed)
103          canvas.Subscribe(SHAPES_SELECTED, self.identify_view_on_demand)          canvas.Subscribe(SHAPES_SELECTED, self.identify_view_on_demand)
104          self.canvas = canvas          self.canvas = canvas
105            self.canvas.Subscribe(TITLE_CHANGED, self.title_changed)
106    
107          self.SetMainWindow(self.canvas)          self.SetMainWindow(self.canvas)
108    
# Line 101  class MainWindow(DockFrame): Line 110  class MainWindow(DockFrame):
110    
111          self.init_dialogs()          self.init_dialogs()
112    
113          EVT_CLOSE(self, self._OnClose)          self.ShowLegend()
114    
115            EVT_CLOSE(self, self.OnClose)
116    
117      def Subscribe(self, channel, *args):      def Subscribe(self, channel, *args):
118          """Subscribe a function to a message channel.          """Subscribe a function to a message channel.
# Line 123  class MainWindow(DockFrame): Line 134  class MainWindow(DockFrame):
134          """          """
135          if channel in self.delegated_messages:          if channel in self.delegated_messages:
136              object = getattr(self, self.delegated_messages[channel])              object = getattr(self, self.delegated_messages[channel])
137              object.Unsubscribe(channel, *args)              try:
138                    object.Unsubscribe(channel, *args)
139                except wxPyDeadObjectError:
140                    # The object was a wxObject and has already been
141                    # destroyed. Hopefully it has unsubscribed all its
142                    # subscribers already so that it's OK if we do nothing
143                    # here
144                    pass
145    
146      def __getattr__(self, attr):      def __getattr__(self, attr):
147          """If attr is one of the delegated methods return that method          """If attr is one of the delegated methods return that method
# Line 243  class MainWindow(DockFrame): Line 261  class MainWindow(DockFrame):
261              command = registry.Command(name)              command = registry.Command(name)
262              if command is not None:              if command is not None:
263                  ID = self.get_id(name)                  ID = self.get_id(name)
264                  filename = os.path.join(bitmapdir, command.Icon()) + bitmapext                  bitmap = resource.GetBitmapResource(command.Icon(),
265                  bitmap = wxBitmap(filename, wxBITMAP_TYPE_XPM)                                                      wxBITMAP_TYPE_XPM)
266                  toolbar.AddTool(ID, bitmap,                  toolbar.AddTool(ID, bitmap,
267                                  shortHelpString = command.HelpText(),                                  shortHelpString = command.HelpText(),
268                                  isToggle = command.IsCheckCommand())                                  isToggle = command.IsCheckCommand())
# Line 354  class MainWindow(DockFrame): Line 372  class MainWindow(DockFrame):
372              result = wxID_NO              result = wxID_NO
373          return result          return result
374    
     def prepare_new_session(self):  
         for d in self.dialogs.values():  
             if not isinstance(d, tree.SessionTreeView):  
                 d.Close()  
   
375      def NewSession(self):      def NewSession(self):
376          self.save_modified_session()          if self.save_modified_session() != wxID_CANCEL:
377          self.prepare_new_session()              self.application.SetSession(create_empty_session())
         self.application.SetSession(create_empty_session())  
378    
379      def OpenSession(self):      def OpenSession(self):
380          self.save_modified_session()          if self.save_modified_session() != wxID_CANCEL:
381          dlg = wxFileDialog(self, _("Open Session"), ".", "", "*.thuban", wxOPEN)              dlg = wxFileDialog(self, _("Open Session"),
382          if dlg.ShowModal() == wxID_OK:                                 self.application.Path("data"), "",
383              self.prepare_new_session()                                 "Thuban Session File (*.thuban)|*.thuban",
384              self.application.OpenSession(dlg.GetPath())                                 wxOPEN)
385          dlg.Destroy()              if dlg.ShowModal() == wxID_OK:
386                    self.application.OpenSession(dlg.GetPath(),
387                                                 self.run_db_param_dialog)
388                    self.application.SetPath("data", dlg.GetPath())
389                dlg.Destroy()
390    
391        def run_db_param_dialog(self, parameters, message):
392            dlg = DBDialog(self, _("DB Connection Parameters"), parameters,
393                           message)
394            return dlg.RunDialog()
395    
396      def SaveSession(self):      def SaveSession(self):
397          if self.application.session.filename == None:          if self.application.session.filename == None:
# Line 379  class MainWindow(DockFrame): Line 400  class MainWindow(DockFrame):
400              self.application.SaveSession()              self.application.SaveSession()
401    
402      def SaveSessionAs(self):      def SaveSessionAs(self):
403          dlg = wxFileDialog(self, _("Save Session As"), ".", "",          dlg = wxFileDialog(self, _("Save Session As"),
404                             "*.thuban", wxOPEN)                             self.application.Path("data"), "",
405                               "Thuban Session File (*.thuban)|*.thuban",
406                               wxSAVE|wxOVERWRITE_PROMPT)
407          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wxID_OK:
408              self.application.session.SetFilename(dlg.GetPath())              self.application.session.SetFilename(dlg.GetPath())
409              self.application.SaveSession()              self.application.SaveSession()
410                self.application.SetPath("data",dlg.GetPath())
411          dlg.Destroy()          dlg.Destroy()
412    
413      def Exit(self):      def Exit(self):
414          self.Close(False)          self.Close(False)
415    
416      def _OnClose(self, event):      def OnClose(self, event):
417          result = self.save_modified_session(can_veto = event.CanVeto())          result = self.save_modified_session(can_veto = event.CanVeto())
418          if result == wxID_CANCEL:          if result == wxID_CANCEL:
419              event.Veto()              event.Veto()
# Line 398  class MainWindow(DockFrame): Line 422  class MainWindow(DockFrame):
422              # wx's destroy event, but that isn't implemented for wxGTK              # wx's destroy event, but that isn't implemented for wxGTK
423              # yet.              # yet.
424              self.canvas.Unsubscribe(VIEW_POSITION, self.view_position_changed)              self.canvas.Unsubscribe(VIEW_POSITION, self.view_position_changed)
425              DockFrame._OnClose(self, event)              DockFrame.OnClose(self, event)
426                for dlg in self.dialogs.values():
427                    dlg.Destroy()
428                self.canvas.Destroy()
429              self.Destroy()              self.Destroy()
430    
431      def SetMap(self, map):      def SetMap(self, map):
432          self.canvas.SetMap(map)          self.canvas.SetMap(map)
433          #self.legendPanel.SetMap(map)          self.update_title()
434    
435            dialog = self.FindRegisteredDock("legend")
436            if dialog is not None:
437                dialog.GetPanel().SetMap(self.Map())
438    
439      def Map(self):      def Map(self):
440          """Return the map displayed by this mainwindow"""          """Return the map displayed by this mainwindow"""
441    
         # sanity check  
         #assert(self.canvas.Map() is self.legendPanel.GetMap())  
   
442          return self.canvas.Map()          return self.canvas.Map()
443    
444      def ShowSessionTree(self):      def ToggleSessionTree(self):
445            """If the session tree is shown close it otherwise create a new tree"""
446          name = "session_tree"          name = "session_tree"
447          dialog = self.get_open_dialog(name)          dialog = self.get_open_dialog(name)
448          if dialog is None:          if dialog is None:
# Line 421  class MainWindow(DockFrame): Line 450  class MainWindow(DockFrame):
450              self.add_dialog(name, dialog)              self.add_dialog(name, dialog)
451              dialog.Show(True)              dialog.Show(True)
452          else:          else:
453              # FIXME: bring dialog to front here              dialog.Close()
             pass  
454    
455        def SessionTreeShown(self):
456            """Return true iff the session tree is currently shown"""
457            return self.get_open_dialog("session_tree") is not None
458    
459      def About(self):      def About(self):
460          self.RunMessageBox(_("About"),          dlg = About(self)
461                             _("Thuban v%s\n"          dlg.ShowModal()
462                              #"Build Date: %s\n"          dlg.Destroy()
463                              "\n"  
464                              "Thuban is a program for\n"      def DatabaseManagement(self):
465                              "exploring geographic data.\n"          name = "dbmanagement"
466                              "Copyright (C) 2001-2003 Intevation GmbH.\n"          dialog = self.get_open_dialog(name)
467                              "Thuban is licensed under the GNU GPL"          if dialog is None:
468                             % __ThubanVersion__), #__BuildDate__)),              map = self.canvas.Map()
469                             wxOK | wxICON_INFORMATION)              dialog = DBFrame(self, name, self.application.Session())
470                self.add_dialog(name, dialog)
471                dialog.Show()
472            dialog.Raise()
473    
474      def AddLayer(self):      def AddLayer(self):
475          dlg = wxFileDialog(self, _("Select a data file"), ".", "", "*.*",          dlg = wxFileDialog(self, _("Select one or more data files"),
476                               self.application.Path("data"), "",
477                               _("Shapefiles (*.shp)") + "|*.shp;*.SHP|" +
478                               _("All Files (*.*)") + "|*.*",
479                               wxOPEN | wxMULTIPLE)
480            if dlg.ShowModal() == wxID_OK:
481                filenames = dlg.GetPaths()
482                for filename in filenames:
483                    title = os.path.splitext(os.path.basename(filename))[0]
484                    map = self.canvas.Map()
485                    has_layers = map.HasLayers()
486                    try:
487                        store = self.application.Session().OpenShapefile(filename)
488                    except IOError:
489                        # the layer couldn't be opened
490                        self.RunMessageBox(_("Add Layer"),
491                                           _("Can't open the file '%s'.")%filename)
492                    else:
493                        layer = Layer(title, store)
494                        map.AddLayer(layer)
495                        if not has_layers:
496                            # if we're adding a layer to an empty map, fit the
497                            # new map to the window
498                            self.canvas.FitMapToWindow()
499                        self.application.SetPath("data",filename)
500            dlg.Destroy()
501    
502        def AddRasterLayer(self):
503            dlg = wxFileDialog(self, _("Select an image file"),
504                               self.application.Path("data"), "", "*.*",
505                             wxOPEN)                             wxOPEN)
506          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wxID_OK:
507              filename = dlg.GetPath()              filename = dlg.GetPath()
508              title = os.path.splitext(os.path.basename(filename))[0]              title = os.path.splitext(os.path.basename(filename))[0]
             layer = Layer(title, filename)  
509              map = self.canvas.Map()              map = self.canvas.Map()
510              has_layers = map.HasLayers()              has_layers = map.HasLayers()
511              try:              try:
512                  map.AddLayer(layer)                  layer = RasterLayer(title, filename)
513              except IOError:              except IOError:
514                  # the layer couldn't be opened                  # the layer couldn't be opened
515                  self.RunMessageBox(_("Add Layer"),                  self.RunMessageBox(_("Add Image Layer"),
516                                     _("Can't open the file '%s'.") % filename)                                     _("Can't open the file '%s'.") % filename)
517              else:              else:
518                    map.AddLayer(layer)
519                  if not has_layers:                  if not has_layers:
520                      # if we're adding a layer to an empty map, fit the                      # if we're adding a layer to an empty map, fit the
521                      # new map to the window                      # new map to the window
522                      self.canvas.FitMapToWindow()                      self.canvas.FitMapToWindow()
523                    self.application.SetPath("data", filename)
524            dlg.Destroy()
525    
526        def AddDBLayer(self):
527            """Add a layer read from a database"""
528            session = self.application.Session()
529            dlg = ChooseDBTableDialog(self, self.application.Session())
530    
531            if dlg.ShowModal() == wxID_OK:
532                dbconn, dbtable = dlg.GetTable()
533                try:
534                    title = str(dbtable)
535    
536                    # Chose the correct Interface for the database type
537                    store = PostGISShapeStore(dbconn, dbtable)
538                    session.AddShapeStore(store)
539                    layer = Layer(title, store)
540                except:
541                    # Some error occured while initializing the layer
542                    self.RunMessageBox(_("Add Layer from database"),
543                                       _("Can't open the database table '%s'")
544                                       % dbtable)
545    
546                map = self.canvas.Map()
547    
548                has_layers = map.HasLayers()
549                map.AddLayer(layer)
550                if not has_layers:
551                    self.canvas.FitMapToWindow()
552    
553          dlg.Destroy()          dlg.Destroy()
554    
555      def RemoveLayer(self):      def RemoveLayer(self):
# Line 498  class MainWindow(DockFrame): Line 591  class MainWindow(DockFrame):
591          """Return true if a layer is currently selected"""          """Return true if a layer is currently selected"""
592          return self.canvas.HasSelectedLayer()          return self.canvas.HasSelectedLayer()
593    
594      def choose_color(self):      def has_selected_shape_layer(self):
595          """Run the color selection dialog and return the selected color.          """Return true if a shape layer is currently selected"""
596            return isinstance(self.current_layer(), Layer)
597          If the user cancels, return None.  
598          """      def has_selected_shapes(self):
599          dlg = wxColourDialog(self)          """Return true if a shape is currently selected"""
600          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  
   
     def LayerFillColor(self):  
         layer = self.current_layer()  
         if layer is not None:  
             color = self.choose_color()  
             if color is not None:  
                 layer.GetClassification().SetDefaultFill(color)  
601    
602      def LayerTransparentFill(self):      def HideLayer(self):
603          layer = self.current_layer()          layer = self.current_layer()
604          if layer is not None:          if layer is not None:
605              layer.GetClassification().SetDefaultFill(Color.Transparent)              layer.SetVisible(0)
606    
607      def LayerOutlineColor(self):      def ShowLayer(self):
608          layer = self.current_layer()          layer = self.current_layer()
609          if layer is not None:          if layer is not None:
610              color = self.choose_color()              layer.SetVisible(1)
             if color is not None:  
                 layer.GetClassification().SetDefaultLineColor(color)  
611    
612      def LayerNoOutline(self):      def DuplicateLayer(self):
613            """Ceate a new layer above the selected layer with the same shapestore
614            """
615          layer = self.current_layer()          layer = self.current_layer()
616          if layer is not None:          if layer is not None and hasattr(layer, "ShapeStore"):
617              layer.GetClassification().SetDefaultLineColor(Color.Transparent)              new_layer = Layer(_("Copy of `%s'") % layer.Title(),
618                                  layer.ShapeStore(),
619                                  projection = layer.GetProjection())
620                new_classification = copy.deepcopy(layer.GetClassification())
621                new_layer.SetClassification(new_classification)
622                self.Map().AddLayer(new_layer)
623    
624      def HideLayer(self):      def CanDuplicateLayer(self):
625            """Return whether the DuplicateLayer method can create a duplicate"""
626          layer = self.current_layer()          layer = self.current_layer()
627          if layer is not None:          return layer is not None and hasattr(layer, "ShapeStore")
             layer.SetVisible(0)  
           
     def ShowLayer(self):  
         layer = self.current_layer()  
         if layer is not None:  
             layer.SetVisible(1)  
628    
629      def LayerShowTable(self):      def LayerShowTable(self):
630          layer = self.current_layer()          layer = self.current_layer()
631          if layer is not None:          if layer is not None:
632              table = layer.table              table = layer.ShapeStore().Table()
633              name = "table_view" + str(id(table))              name = "table_view" + str(id(table))
634              dialog = self.get_open_dialog(name)              dialog = self.get_open_dialog(name)
635              if dialog is None:              if dialog is None:
636                  dialog = tableview.LayerTableFrame(self, name,                  dialog = tableview.LayerTableFrame(self, name,
637                                                 _("Table: %s") % layer.Title(),                                           _("Layer Table: %s") % layer.Title(),
638                                                     layer, table)                                           layer, table)
639                  self.add_dialog(name, dialog)                  self.add_dialog(name, dialog)
640                  dialog.Show(true)                  dialog.Show(True)
641              else:              else:
642                  # FIXME: bring dialog to front here                  # FIXME: bring dialog to front here
643                  pass                  pass
644    
645      def Projection(self):      def MapProjection(self):
         map = self.canvas.Map()  
         proj = map.projection  
         if proj is None:  
             proj4Dlg = proj4dialog.Proj4Dialog(NULL, None, map.BoundingBox())  
         else:  
             proj4Dlg = proj4dialog.Proj4Dialog(NULL, map.projection.params,  
                                                map.BoundingBox())  
         if proj4Dlg.ShowModal() == wxID_OK:  
             params = proj4Dlg.GetParams()  
             if params is not None:  
                 proj = Projection(params)  
             else:  
                 proj = None  
             map.SetProjection(proj)  
         proj4Dlg.Destroy()  
646    
647      def Classify(self):          name = "map_projection"
648            dialog = self.get_open_dialog(name)
649    
650            if dialog is None:
651                map = self.canvas.Map()
652                dialog = projdialog.ProjFrame(self, name,
653                         _("Map Projection: %s") % map.Title(), map)
654                self.add_dialog(name, dialog)
655                dialog.Show()
656            dialog.Raise()
657    
658        def LayerProjection(self):
659    
660            layer = self.current_layer()
661    
662            name = "layer_projection" + str(id(layer))
663            dialog = self.get_open_dialog(name)
664    
665            if dialog is None:
666                map = self.canvas.Map()
667                dialog = projdialog.ProjFrame(self, name,
668                         _("Layer Projection: %s") % layer.Title(), layer)
669                self.add_dialog(name, dialog)
670                dialog.Show()
671            dialog.Raise()
672    
673        def LayerEditProperties(self):
674    
675          #          #
676          # the menu option for this should only be available if there          # the menu option for this should only be available if there
# Line 590  class MainWindow(DockFrame): Line 679  class MainWindow(DockFrame):
679          #          #
680    
681          layer = self.current_layer()          layer = self.current_layer()
682          self.OpenClassifier(layer)          self.OpenLayerProperties(layer)
683    
684      def OpenClassifier(self, layer, group = None):      def OpenLayerProperties(self, layer, group = None):
685          name = "classifier" + str(id(layer))          name = "layer_properties" + str(id(layer))
686          dialog = self.get_open_dialog(name)          dialog = self.get_open_dialog(name)
687    
688          if dialog is None:          if dialog is None:
689              dialog = classifier.Classifier(self, name, layer, group)              dialog = Classifier(self, name, self.Map(), layer, group)
690              self.add_dialog(name, dialog)              self.add_dialog(name, dialog)
691              dialog.Show()              dialog.Show()
692          dialog.Raise()          dialog.Raise()
693    
694        def LayerJoinTable(self):
695            layer = self.canvas.SelectedLayer()
696            if layer is not None:
697                dlg = JoinDialog(self, _("Join Layer with Table"),
698                                 self.application.session,
699                                 layer = layer)
700                dlg.ShowModal()
701    
702        def LayerUnjoinTable(self):
703            layer = self.canvas.SelectedLayer()
704            if layer is not None:
705                orig_store = layer.ShapeStore().OrigShapeStore()
706                if orig_store:
707                    layer.SetShapeStore(orig_store)
708    
709      def ShowLegend(self):      def ShowLegend(self):
710            if not self.LegendShown():
711                self.ToggleLegend()
712    
713        def ToggleLegend(self):
714            """Show the legend if it's not shown otherwise hide it again"""
715          name = "legend"          name = "legend"
716          dialog = self.FindRegisteredDock(name)          dialog = self.FindRegisteredDock(name)
717    
718          if dialog is None:          if dialog is None:
719              title = "Legend: %s" % self.Map().Title()              dialog = self.CreateDock(name, -1, _("Legend"), wxLAYOUT_LEFT)
             dialog = self.CreateDock(name, -1, title, wxLAYOUT_LEFT)  
720              legend.LegendPanel(dialog, None, self)              legend.LegendPanel(dialog, None, self)
721              dialog.Dock()              dialog.Dock()
722                dialog.GetPanel().SetMap(self.Map())
723                dialog.Show()
724            else:
725                dialog.Show(not dialog.IsShown())
726    
727        def LegendShown(self):
728            """Return true iff the legend is currently open"""
729            dialog = self.FindRegisteredDock("legend")
730            return dialog is not None and dialog.IsShown()
731    
732        def TableOpen(self):
733            dlg = wxFileDialog(self, _("Open Table"),
734                               self.application.Path("data"), "",
735                               _("DBF Files (*.dbf)") + "|*.dbf|" +
736                               #_("CSV Files (*.csv)") + "|*.csv|" +
737                               _("All Files (*.*)") + "|*.*",
738                               wxOPEN)
739            if dlg.ShowModal() == wxID_OK:
740                filename = dlg.GetPath()
741                dlg.Destroy()
742                try:
743                    table = self.application.session.OpenTableFile(filename)
744                except IOError:
745                    # the layer couldn't be opened
746                    self.RunMessageBox(_("Open Table"),
747                                       _("Can't open the file '%s'.") % filename)
748                else:
749                    self.ShowTableView(table)
750                    self.application.SetPath("data",filename)
751    
752        def TableClose(self):
753            tables = self.application.session.UnreferencedTables()
754    
755            lst = [(t.Title(), t) for t in tables]
756            lst.sort()
757            titles = [i[0] for i in lst]
758            dlg = wxMultipleChoiceDialog(self, _("Pick the tables to close:"),
759                                         _("Close Table"), titles,
760                                         size = (400, 300),
761                                         style = wxDEFAULT_DIALOG_STYLE |
762                                                 wxRESIZE_BORDER)
763            if dlg.ShowModal() == wxID_OK:
764                for i in dlg.GetValue():
765                    self.application.session.RemoveTable(lst[i][1])
766    
767    
768        def TableShow(self):
769            """Offer a multi-selection dialog for tables to be displayed
770    
771            The windows for the selected tables are opened or brought to
772            the front.
773            """
774            tables = self.application.session.Tables()
775    
776            lst = [(t.Title(), t) for t in tables]
777            lst.sort()
778            titles = [i[0] for i in lst]
779            dlg = wxMultipleChoiceDialog(self, _("Pick the table to show:"),
780                                         _("Show Table"), titles,
781                                         size = (400,300),
782                                         style = wxDEFAULT_DIALOG_STYLE |
783                                                 wxRESIZE_BORDER)
784            if (dlg.ShowModal() == wxID_OK):
785                for i in dlg.GetValue():
786                    # XXX: if the table belongs to a layer, open a
787                    # LayerTableFrame instead of QueryTableFrame
788                    self.ShowTableView(lst[i][1])
789    
790        def TableJoin(self):
791            dlg = JoinDialog(self, _("Join Tables"), self.application.session)
792            dlg.ShowModal()
793    
794        def ShowTableView(self, table):
795            """Open a table view for the table and optionally"""
796            name = "table_view%d" % id(table)
797            dialog = self.get_open_dialog(name)
798            if dialog is None:
799                dialog = tableview.QueryTableFrame(self, name,
800                                                   _("Table: %s") % table.Title(),
801                                                   table)
802                self.add_dialog(name, dialog)
803                dialog.Show(True)
804            dialog.Raise()
805    
806        def TableRename(self):
807            """Let the user rename a table"""
808    
809            # First, let the user select a table
810            tables = self.application.session.Tables()
811            lst = [(t.Title(), t) for t in tables]
812            lst.sort()
813            titles = [i[0] for i in lst]
814            dlg = wxMultipleChoiceDialog(self, _("Pick the table to rename:"),
815                                         _("Rename Table"), titles,
816                                         size = (400,300),
817                                         style = wxDEFAULT_DIALOG_STYLE |
818                                                 wxRESIZE_BORDER)
819            if (dlg.ShowModal() == wxID_OK):
820                to_rename = [lst[i][1] for i in dlg.GetValue()]
821                dlg.Destroy()
822            else:
823                to_rename = []
824    
825            # Second, let the user rename the layers
826            for table in to_rename:
827                dlg = wxTextEntryDialog(self, _("Table Title:"), _("Rename Table"),
828                                        table.Title())
829                try:
830                    if dlg.ShowModal() == wxID_OK:
831                        title = dlg.GetValue()
832                        if title != "":
833                            table.SetTitle(title)
834    
835                            # Make sure the session is marked as modified.
836                            # FIXME: This should be handled automatically,
837                            # but that requires more changes to the tables
838                            # than I have time for currently.
839                            self.application.session.changed()
840                finally:
841                    dlg.Destroy()
842    
         dialog.GetPanel().SetMap(self.Map())  
         dialog.Show()  
843    
844      def ZoomInTool(self):      def ZoomInTool(self):
845          self.canvas.ZoomInTool()          self.canvas.ZoomInTool()
# Line 635  class MainWindow(DockFrame): Line 860  class MainWindow(DockFrame):
860      def FullExtent(self):      def FullExtent(self):
861          self.canvas.FitMapToWindow()          self.canvas.FitMapToWindow()
862    
863        def FullLayerExtent(self):
864            self.canvas.FitLayerToWindow(self.current_layer())
865    
866        def FullSelectionExtent(self):
867            self.canvas.FitSelectedToWindow()
868    
869        def ExportMap(self):
870            self.canvas.Export()
871    
872      def PrintMap(self):      def PrintMap(self):
873          self.canvas.Print()          self.canvas.Print()
874    
875        def RenameMap(self):
876            dlg = wxTextEntryDialog(self, _("Map Title:"), _("Rename Map"),
877                                    self.Map().Title())
878            if dlg.ShowModal() == wxID_OK:
879                title = dlg.GetValue()
880                if title != "":
881                    self.Map().SetTitle(title)
882    
883            dlg.Destroy()
884    
885        def RenameLayer(self):
886            """Let the user rename the currently selected layer"""
887            layer = self.current_layer()
888            if layer is not None:
889                dlg = wxTextEntryDialog(self, _("Layer Title:"), _("Rename Layer"),
890                                        layer.Title())
891                try:
892                    if dlg.ShowModal() == wxID_OK:
893                        title = dlg.GetValue()
894                        if title != "":
895                            layer.SetTitle(title)
896                finally:
897                    dlg.Destroy()
898    
899      def identify_view_on_demand(self, layer, shapes):      def identify_view_on_demand(self, layer, shapes):
900            """Subscribed to the canvas' SHAPES_SELECTED message
901    
902            If the current tool is the identify tool, at least one shape is
903            selected and the identify dialog is not shown, show the dialog.
904            """
905            # If the selection has become empty we don't need to do
906            # anything. Otherwise it could happen that the dialog was popped
907            # up when the selection became empty, e.g. when a new selection
908            # is opened while the identify tool is active and dialog had
909            # been closed
910            if not shapes:
911                return
912    
913          name = "identify_view"          name = "identify_view"
914          if self.canvas.CurrentTool() == "IdentifyTool":          if self.canvas.CurrentTool() == "IdentifyTool":
915              if not self.dialog_open(name):              if not self.dialog_open(name):
# Line 649  class MainWindow(DockFrame): Line 920  class MainWindow(DockFrame):
920                  # FIXME: bring dialog to front?                  # FIXME: bring dialog to front?
921                  pass                  pass
922    
923        def title_changed(self, map):
924            """Subscribed to the canvas' TITLE_CHANGED messages"""
925            self.update_title()
926    
927        def update_title(self):
928            """Update the window's title according to it's current state.
929    
930            In this default implementation the title is 'Thuban - ' followed
931            by the map's title or simply 'Thuban' if there is not map.
932            Derived classes should override this method to get different
933            titles.
934    
935            This method is called automatically by other methods when the
936            title may have to change. For the methods implemented in this
937            class this usually only means that a different map has been set
938            or the current map's title has changed.
939            """
940            map = self.Map()
941            if map is not None:
942                title = _("Thuban - %s") % (map.Title(),)
943            else:
944                title = _("Thuban")
945            self.SetTitle(title)
946    
947    
948  #  #
949  # Define all the commands available in the main window  # Define all the commands available in the main window
950  #  #
# Line 660  def call_method(context, methodname, *ar Line 956  def call_method(context, methodname, *ar
956      apply(getattr(context.mainwindow, methodname), args)      apply(getattr(context.mainwindow, methodname), args)
957    
958  def _method_command(name, title, method, helptext = "",  def _method_command(name, title, method, helptext = "",
959                      icon = "", sensitive = None):                      icon = "", sensitive = None, checked = None):
960      """Add a command implemented by a method of the mainwindow object"""      """Add a command implemented by a method of the mainwindow object"""
961      registry.Add(Command(name, title, call_method, args=(method,),      registry.Add(Command(name, title, call_method, args=(method,),
962                           helptext = helptext, icon = icon,                           helptext = helptext, icon = icon,
963                           sensitive = sensitive))                           sensitive = sensitive, checked = checked))
964    
965  def make_check_current_tool(toolname):  def make_check_current_tool(toolname):
966      """Return a function that tests if the currently active tool is toolname      """Return a function that tests if the currently active tool is toolname
# Line 689  def _has_selected_layer(context): Line 985  def _has_selected_layer(context):
985      """Return true if a layer is selected in the context"""      """Return true if a layer is selected in the context"""
986      return context.mainwindow.has_selected_layer()      return context.mainwindow.has_selected_layer()
987    
988    def _has_selected_shape_layer(context):
989        """Return true if a shape layer is selected in the context"""
990        return context.mainwindow.has_selected_shape_layer()
991    
992    def _has_selected_shapes(context):
993        """Return true if a layer is selected in the context"""
994        return context.mainwindow.has_selected_shapes()
995    
996  def _can_remove_layer(context):  def _can_remove_layer(context):
997      return context.mainwindow.CanRemoveLayer()      return context.mainwindow.CanRemoveLayer()
998    
999  def _has_tree_window_shown(context):  def _has_tree_window_shown(context):
1000      """Return true if the tree window is shown"""      """Return true if the tree window is shown"""
1001      return context.mainwindow.get_open_dialog("session_tree") is None      return context.mainwindow.SessionTreeShown()
1002    
1003  def _has_visible_map(context):  def _has_visible_map(context):
1004      """Return true iff theres a visible map in the mainwindow.      """Return true iff theres a visible map in the mainwindow.
# Line 709  def _has_visible_map(context): Line 1013  def _has_visible_map(context):
1013    
1014  def _has_legend_shown(context):  def _has_legend_shown(context):
1015      """Return true if the legend window is shown"""      """Return true if the legend window is shown"""
1016      return context.mainwindow.FindRegisteredDock("legend") is None      return context.mainwindow.LegendShown()
1017    
1018    def _has_gdal_support(context):
1019        """Return True if the GDAL is available"""
1020        return Thuban.Model.resource.has_gdal_support()
1021    
1022    def _has_dbconnections(context):
1023        """Return whether the the session has database connections"""
1024        return context.session.HasDBConnections()
1025    
1026    def _has_postgis_support(context):
1027        return has_postgis_support()
1028    
1029    
1030  # File menu  # File menu
1031  _method_command("new_session", _("&New Session"), "NewSession")  _method_command("new_session", _("&New Session"), "NewSession",
1032  _method_command("open_session", _("&Open Session"), "OpenSession")                  helptext = _("Start a new session"))
1033  _method_command("save_session", _("&Save Session"), "SaveSession")  _method_command("open_session", _("&Open Session..."), "OpenSession",
1034  _method_command("save_session_as", _("Save Session &As"), "SaveSessionAs")                  helptext = _("Open a session file"))
1035  _method_command("show_session_tree", _("Session &Tree"), "ShowSessionTree",  _method_command("save_session", _("&Save Session"), "SaveSession",
1036                  sensitive = _has_tree_window_shown)                  helptext =_("Save this session to the file it was opened from"))
1037  _method_command("show_legend", _("Legend"), "ShowLegend",  _method_command("save_session_as", _("Save Session &As..."), "SaveSessionAs",
1038                  sensitive = _has_legend_shown)                  helptext = _("Save this session to a new file"))
1039  _method_command("exit", _("E&xit"), "Exit")  _method_command("toggle_session_tree", _("Session &Tree"), "ToggleSessionTree",
1040                    checked = _has_tree_window_shown,
1041                    helptext = _("Toggle on/off the session tree analysis window"))
1042    _method_command("toggle_legend", _("Legend"), "ToggleLegend",
1043                    checked = _has_legend_shown,
1044                    helptext = _("Toggle Legend on/off"))
1045    _method_command("database_management", _("&Database Connections..."),
1046                    "DatabaseManagement",
1047                    sensitive = _has_postgis_support)
1048    _method_command("exit", _("E&xit"), "Exit",
1049                    helptext = _("Finish working with Thuban"))
1050    
1051  # Help menu  # Help menu
1052  _method_command("help_about", _("&About"), "About")  _method_command("help_about", _("&About..."), "About",
1053                    helptext = _("Info about Thuban authors, version and modules"))
1054    
1055    
1056  # Map menu  # Map menu
1057  _method_command("map_projection", _("Pro&jection"), "Projection")  _method_command("map_projection", _("Pro&jection..."), "MapProjection",
1058                    helptext = _("Set or change the map projection"))
1059    
1060  _tool_command("map_zoom_in_tool", _("&Zoom in"), "ZoomInTool", "ZoomInTool",  _tool_command("map_zoom_in_tool", _("&Zoom in"), "ZoomInTool", "ZoomInTool",
1061                helptext = _("Switch to map-mode 'zoom-in'"), icon = "zoom_in",                helptext = _("Switch to map-mode 'zoom-in'"), icon = "zoom_in",
# Line 747  _tool_command("map_label_tool", _("&Labe Line 1074  _tool_command("map_label_tool", _("&Labe
1074                helptext = _("Add/Remove labels"), icon = "label",                helptext = _("Add/Remove labels"), icon = "label",
1075                sensitive = _has_visible_map)                sensitive = _has_visible_map)
1076  _method_command("map_full_extent", _("&Full extent"), "FullExtent",  _method_command("map_full_extent", _("&Full extent"), "FullExtent",
1077                 helptext = _("Full Extent"), icon = "fullextent",                 helptext = _("Zoom to the full map extent"), icon = "fullextent",
1078                sensitive = _has_visible_map)                sensitive = _has_visible_map)
1079    _method_command("layer_full_extent", _("&Full layer extent"), "FullLayerExtent",
1080                    helptext = _("Zoom to the full layer extent"),
1081                    icon = "fulllayerextent", sensitive = _has_selected_layer)
1082    _method_command("selected_full_extent", _("&Full selection extent"),
1083                    "FullSelectionExtent",
1084                    helptext = _("Zoom to the full selection extent"),
1085                    icon = "fullselextent", sensitive = _has_selected_shapes)
1086    _method_command("map_export", _("E&xport"), "ExportMap",
1087                    helptext = _("Export the map to file"))
1088  _method_command("map_print", _("Prin&t"), "PrintMap",  _method_command("map_print", _("Prin&t"), "PrintMap",
1089                  helptext = _("Print the map"))                  helptext = _("Print the map"))
1090    _method_command("map_rename", _("&Rename..."), "RenameMap",
1091  # Layer menu                  helptext = _("Rename the map"))
1092  _method_command("layer_add", _("&Add Layer"), "AddLayer",  _method_command("layer_add", _("&Add Layer..."), "AddLayer",
1093                  helptext = _("Add a new layer to active map"))                  helptext = _("Add a new layer to the map"))
1094    _method_command("rasterlayer_add", _("&Add Image Layer..."), "AddRasterLayer",
1095                    helptext = _("Add a new image layer to the map"),
1096                    sensitive = _has_gdal_support)
1097    _method_command("layer_add_db", _("Add &Database Layer..."), "AddDBLayer",
1098                    helptext = _("Add a new database layer to active map"),
1099                    sensitive = _has_dbconnections)
1100  _method_command("layer_remove", _("&Remove Layer"), "RemoveLayer",  _method_command("layer_remove", _("&Remove Layer"), "RemoveLayer",
1101                  helptext = _("Remove selected layer(s)"),                  helptext = _("Remove selected layer"),
1102                  sensitive = _can_remove_layer)                  sensitive = _can_remove_layer)
1103  _method_command("layer_fill_color", _("&Fill Color"), "LayerFillColor",  
1104                  helptext = _("Set the fill color of selected layer(s)"),  # Layer menu
1105                  sensitive = _has_selected_layer)  _method_command("layer_projection", _("Pro&jection..."), "LayerProjection",
1106  _method_command("layer_transparent_fill", _("&Transparent Fill"),                  sensitive = _has_selected_layer,
1107                  "LayerTransparentFill",                  helptext = _("Specify projection for selected layer"))
1108                  helptext = _("Do not fill the selected layer(s)"),  _method_command("layer_duplicate", _("&Duplicate"), "DuplicateLayer",
1109                  sensitive = _has_selected_layer)                  helptext = _("Duplicate selected layer"),
1110  _method_command("layer_outline_color", _("&Outline Color"), "LayerOutlineColor",            sensitive = lambda context: context.mainwindow.CanDuplicateLayer())
1111                  helptext = _("Set the outline color of selected layer(s)"),  _method_command("layer_rename", _("Re&name ..."), "RenameLayer",
1112                  sensitive = _has_selected_layer)                  helptext = _("Rename selected layer"),
 _method_command("layer_no_outline", _("&No Outline"), "LayerNoOutline",  
                 helptext= _("Do not draw the outline of the selected layer(s)"),  
1113                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1114  _method_command("layer_raise", _("&Raise"), "RaiseLayer",  _method_command("layer_raise", _("&Raise"), "RaiseLayer",
1115                  helptext = _("Raise selected layer(s)"),                  helptext = _("Raise selected layer"),
1116                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1117  _method_command("layer_lower", _("&Lower"), "LowerLayer",  _method_command("layer_lower", _("&Lower"), "LowerLayer",
1118                  helptext = _("Lower selected layer(s)"),                  helptext = _("Lower selected layer"),
1119                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1120  _method_command("layer_show", _("&Show"), "ShowLayer",  _method_command("layer_show", _("&Show"), "ShowLayer",
1121                  helptext = _("Make selected layer(s) visible"),                  helptext = _("Make selected layer visible"),
1122                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1123  _method_command("layer_hide", _("&Hide"), "HideLayer",  _method_command("layer_hide", _("&Hide"), "HideLayer",
1124                  helptext = _("Make selected layer(s) unvisible"),                  helptext = _("Make selected layer unvisible"),
1125                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
1126  _method_command("layer_show_table", _("Show Ta&ble"), "LayerShowTable",  _method_command("layer_show_table", _("Show Ta&ble"), "LayerShowTable",
1127                  helptext = _("Show the selected layer's table"),                  helptext = _("Show the selected layer's table"),
1128                  sensitive = _has_selected_layer)                  sensitive = _has_selected_shape_layer)
1129  _method_command("layer_classifier", _("Classify"), "Classify",  _method_command("layer_properties", _("&Properties..."), "LayerEditProperties",
1130                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer,
1131                    helptext = _("Edit the properties of the selected layer"))
1132    _method_command("layer_jointable", _("&Join Table..."), "LayerJoinTable",
1133                    sensitive = _has_selected_shape_layer,
1134                    helptext = _("Join and attach a table to the selected layer"))
1135    
1136  # the menu structure  def _can_unjoin(context):
1137  main_menu = Menu("<main>", "<main>",      """Return whether the Layer/Unjoin command can be executed.
1138                   [Menu("file", _("&File"),  
1139                         ["new_session", "open_session", None,      This is the case if a layer is selected and that layer has a
1140                          "save_session", "save_session_as", None,      shapestore that has an original shapestore.
1141                          "show_session_tree",      """
1142                          "show_legend", None,      layer = context.mainwindow.SelectedLayer()
1143                          "exit"]),      if layer is None:
1144                    Menu("map", _("&Map"),          return 0
1145                         ["layer_add", "layer_remove",      getstore = getattr(layer, "ShapeStore", None)
1146        if getstore is not None:
1147            return getstore().OrigShapeStore() is not None
1148        else:
1149            return 0
1150    _method_command("layer_unjointable", _("&Unjoin Table..."), "LayerUnjoinTable",
1151                    sensitive = _can_unjoin,
1152                    helptext = _("Undo the last join operation"))
1153    
1154    
1155    def _has_tables(context):
1156        return bool(context.session.Tables())
1157    
1158    # Table menu
1159    _method_command("table_open", _("&Open..."), "TableOpen",
1160                    helptext = _("Open a DBF-table from a file"))
1161    _method_command("table_close", _("&Close..."), "TableClose",
1162           sensitive = lambda context: bool(context.session.UnreferencedTables()),
1163                    helptext = _("Close one or more tables from a list"))
1164    _method_command("table_rename", _("&Rename..."), "TableRename",
1165                    sensitive = _has_tables,
1166                    helptext = _("Rename one or more tables"))
1167    _method_command("table_show", _("&Show..."), "TableShow",
1168                    sensitive = _has_tables,
1169                    helptext = _("Show one or more tables in a dialog"))
1170    _method_command("table_join", _("&Join..."), "TableJoin",
1171                    sensitive = _has_tables,
1172                    helptext = _("Join two tables creating a new one"))
1173    
1174    #  Export only under Windows ...
1175    map_menu = ["layer_add", "layer_add_db", "rasterlayer_add", "layer_remove",
1176                          None,                          None,
1177                            "map_rename",
1178                          "map_projection",                          "map_projection",
1179                          None,                          None,
1180                          "map_zoom_in_tool", "map_zoom_out_tool",                          "map_zoom_in_tool", "map_zoom_out_tool",
1181                          "map_pan_tool", "map_identify_tool", "map_label_tool",                          "map_pan_tool",
                         None,  
1182                          "map_full_extent",                          "map_full_extent",
1183                            "layer_full_extent",
1184                            "selected_full_extent",
1185                          None,                          None,
1186                          "map_print"]),                          "map_identify_tool", "map_label_tool",
1187                            None,
1188                            "toggle_legend",
1189                            None]
1190    if wxPlatform == '__WXMSW__':
1191        map_menu.append("map_export")
1192    map_menu.append("map_print")
1193    
1194    # the menu structure
1195    main_menu = Menu("<main>", "<main>",
1196                     [Menu("file", _("&File"),
1197                           ["new_session", "open_session", None,
1198                            "save_session", "save_session_as", None,
1199                            "database_management", None,
1200                            "toggle_session_tree", None,
1201                            "exit"]),
1202                      Menu("map", _("&Map"), map_menu),
1203                    Menu("layer", _("&Layer"),                    Menu("layer", _("&Layer"),
1204                         ["layer_fill_color", "layer_transparent_fill",                         ["layer_rename", "layer_duplicate",
                         "layer_outline_color", "layer_no_outline",  
1205                          None,                          None,
1206                          "layer_raise", "layer_lower",                          "layer_raise", "layer_lower",
1207                          None,                          None,
1208                          "layer_show", "layer_hide",                          "layer_show", "layer_hide",
1209                          None,                          None,
1210                            "layer_projection",
1211                            None,
1212                          "layer_show_table",                          "layer_show_table",
1213                            "layer_jointable",
1214                            "layer_unjointable",
1215                          None,                          None,
1216                          "layer_classifier"]),                          "layer_properties"]),
1217                      Menu("table", _("&Table"),
1218                           ["table_open", "table_close", "table_rename",
1219                           None,
1220                           "table_show",
1221                           None,
1222                           "table_join"]),
1223                    Menu("help", _("&Help"),                    Menu("help", _("&Help"),
1224                         ["help_about"])])                         ["help_about"])])
1225    
# Line 826  main_menu = Menu("<main>", "<main>", Line 1227  main_menu = Menu("<main>", "<main>",
1227    
1228  main_toolbar = Menu("<toolbar>", "<toolbar>",  main_toolbar = Menu("<toolbar>", "<toolbar>",
1229                      ["map_zoom_in_tool", "map_zoom_out_tool", "map_pan_tool",                      ["map_zoom_in_tool", "map_zoom_out_tool", "map_pan_tool",
1230                       "map_full_extent", None,                       "map_full_extent",
1231                         "layer_full_extent",
1232                         "selected_full_extent",
1233                         None,
1234                       "map_identify_tool", "map_label_tool"])                       "map_identify_tool", "map_label_tool"])
1235    
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