/[thuban]/branches/WIP-pyshapelib-bramz/Thuban/UI/mainwindow.py
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revision 393 by jonathan, Mon Feb 10 15:26:54 2003 UTC revision 621 by jonathan, Mon Apr 7 10:14:50 2003 UTC
# Line 1  Line 1 
1  # Copyright (C) 2001, 2002 by Intevation GmbH  # Copyright (C) 2001, 2002, 2003 by Intevation GmbH
2  # Authors:  # Authors:
3  # Jan-Oliver Wagner <[email protected]>  # Jan-Oliver Wagner <[email protected]>
4  # Bernhard Herzog <[email protected]>  # Bernhard Herzog <[email protected]>
# Line 12  The main window Line 12  The main window
12    
13  __version__ = "$Revision$"  __version__ = "$Revision$"
14    
15    __ThubanVersion__ = "0.2" #"$THUBAN_0_2$"
16    #__BuildDate__ = "$Date$"
17    
18  import os  import os
19    
20  from wxPython.wx import *  from wxPython.wx import *
# Line 28  import tree Line 31  import tree
31  import proj4dialog  import proj4dialog
32  import tableview, identifyview  import tableview, identifyview
33  import classifier  import classifier
34    import legend
35  from menu import Menu  from menu import Menu
36    
37  from context import Context  from context import Context
38  from command import registry, Command, ToolCommand  from command import registry, Command, ToolCommand
39  from messages import SELECTED_SHAPE, VIEW_POSITION  from messages import LAYER_SELECTED, SHAPES_SELECTED, VIEW_POSITION, DOCKABLE_DOCKED, DOCKABLE_UNDOCKED, DOCKABLE_CLOSED
40    
41    from Thuban.UI.dock import DockableWindow, DockFrame, DockPanel
42    
43    
44  # the directory where the toolbar icons are stored  # the directory where the toolbar icons are stored
45  bitmapdir = os.path.join(Thuban.__path__[0], os.pardir, "Resources", "Bitmaps")  bitmapdir = os.path.join(Thuban.__path__[0], os.pardir, "Resources", "Bitmaps")
46  bitmapext = ".xpm"  bitmapext = ".xpm"
47    
48    ID_WINDOW_LEGEND = 4001
49    ID_WINDOW_CANVAS = 4002
50    
51    
52  class MainWindow(wxFrame):  class MainWindow(DockFrame):
53    
54        # Some messages that can be subscribed/unsubscribed directly through
55        # the MapCanvas come in fact from other objects. This is a map to
56        # map those messages to the names of the instance variables they
57        # actually come from. This delegation is implemented in the
58        # Subscribe and unsubscribed methods
59        delegated_messages = {LAYER_SELECTED: "canvas",
60                              SHAPES_SELECTED: "canvas"}
61    
62        # Methods delegated to some instance variables. The delegation is
63        # implemented in the __getattr__ method.
64        delegated_methods = {"SelectLayer": "canvas",
65                             "SelectShapes": "canvas",
66                             }
67    
68      def __init__(self, parent, ID, title, application, interactor,      def __init__(self, parent, ID, title, application, interactor,
69                   initial_message = None, size = wxSize(-1, -1)):                   initial_message = None, size = wxSize(-1, -1)):
70          wxFrame.__init__(self, parent, ID, title, wxDefaultPosition, size)          DockFrame.__init__(self, parent, ID, title, wxDefaultPosition, size)
71            #wxFrame.__init__(self, parent, ID, title, wxDefaultPosition, size)
72    
73          self.application = application          self.application = application
         self.interactor = interactor  
74    
75          self.CreateStatusBar()          self.CreateStatusBar()
76          if initial_message:          if initial_message:
# Line 65  class MainWindow(wxFrame): Line 88  class MainWindow(wxFrame):
88          # call Realize to make sure that the tools appear.          # call Realize to make sure that the tools appear.
89          toolbar.Realize()          toolbar.Realize()
90    
91    
92          # Create the map canvas          # Create the map canvas
93          canvas = view.MapCanvas(self, -1, interactor)          canvas = view.MapCanvas(self, -1)
94          canvas.Subscribe(VIEW_POSITION, self.view_position_changed)          canvas.Subscribe(VIEW_POSITION, self.view_position_changed)
95            canvas.Subscribe(SHAPES_SELECTED, self.identify_view_on_demand)
96          self.canvas = canvas          self.canvas = canvas
97    
98            self.SetMainWindow(self.canvas)
99    
100            self.SetAutoLayout(True)
101    
102          self.init_dialogs()          self.init_dialogs()
103    
104          interactor.Subscribe(SELECTED_SHAPE, self.identify_view_on_demand)          EVT_CLOSE(self, self._OnClose)
105    
106        def Subscribe(self, channel, *args):
107            """Subscribe a function to a message channel.
108    
109            If channel is one of the delegated messages call the appropriate
110            object's Subscribe method. Otherwise do nothing.
111            """
112            if channel in self.delegated_messages:
113                object = getattr(self, self.delegated_messages[channel])
114                object.Subscribe(channel, *args)
115            else:
116                print "Trying to subscribe to unsupported channel %s" % channel
117    
118        def Unsubscribe(self, channel, *args):
119            """Unsubscribe a function from a message channel.
120    
121            If channel is one of the delegated messages call the appropriate
122            object's Unsubscribe method. Otherwise do nothing.
123            """
124            if channel in self.delegated_messages:
125                object = getattr(self, self.delegated_messages[channel])
126                object.Unsubscribe(channel, *args)
127    
128        def __getattr__(self, attr):
129            """If attr is one of the delegated methods return that method
130    
131          EVT_CLOSE(self, self.OnClose)          Otherwise raise AttributeError.
132            """
133            if attr in self.delegated_methods:
134                return getattr(getattr(self, self.delegated_methods[attr]), attr)
135            raise AttributeError(attr)
136    
137      def init_ids(self):      def init_ids(self):
138          """Initialize the ids"""          """Initialize the ids"""
# Line 296  class MainWindow(wxFrame): Line 354  class MainWindow(wxFrame):
354              result = wxID_NO              result = wxID_NO
355          return result          return result
356    
357        def prepare_new_session(self):
358            for d in self.dialogs.values():
359                if not isinstance(d, tree.SessionTreeView):
360                    d.Close()
361    
362      def NewSession(self):      def NewSession(self):
363          self.save_modified_session()          self.save_modified_session()
364            self.prepare_new_session()
365          self.application.SetSession(create_empty_session())          self.application.SetSession(create_empty_session())
366    
367      def OpenSession(self):      def OpenSession(self):
368          self.save_modified_session()          self.save_modified_session()
369          dlg = wxFileDialog(self, _("Select a session file"), ".", "",          dlg = wxFileDialog(self, _("Open Session"), ".", "", "*.thuban", wxOPEN)
                            "*.thuban", wxOPEN)  
370          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wxID_OK:
371                self.prepare_new_session()
372              self.application.OpenSession(dlg.GetPath())              self.application.OpenSession(dlg.GetPath())
373          dlg.Destroy()          dlg.Destroy()
374    
375      def SaveSession(self):      def SaveSession(self):
376          if self.application.session.filename == None:          if self.application.session.filename == None:
377              self.SaveSessionAs()              self.SaveSessionAs()
378          self.application.SaveSession()          else:
379                self.application.SaveSession()
380    
381      def SaveSessionAs(self):      def SaveSessionAs(self):
382          dlg = wxFileDialog(self, _("Enter a filename for session"), ".", "",          dlg = wxFileDialog(self, _("Save Session As"), ".", "",
383                             "*.thuban", wxOPEN)                             "*.thuban", wxOPEN)
384          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wxID_OK:
385              self.application.session.SetFilename(dlg.GetPath())              self.application.session.SetFilename(dlg.GetPath())
# Line 322  class MainWindow(wxFrame): Line 387  class MainWindow(wxFrame):
387          dlg.Destroy()          dlg.Destroy()
388    
389      def Exit(self):      def Exit(self):
390          self.Close(false)          self.Close(False)
391    
392      def OnClose(self, event):      def _OnClose(self, event):
393          result = self.save_modified_session(can_veto = event.CanVeto())          result = self.save_modified_session(can_veto = event.CanVeto())
394          if result == wxID_CANCEL:          if result == wxID_CANCEL:
395              event.Veto()              event.Veto()
# Line 333  class MainWindow(wxFrame): Line 398  class MainWindow(wxFrame):
398              # wx's destroy event, but that isn't implemented for wxGTK              # wx's destroy event, but that isn't implemented for wxGTK
399              # yet.              # yet.
400              self.canvas.Unsubscribe(VIEW_POSITION, self.view_position_changed)              self.canvas.Unsubscribe(VIEW_POSITION, self.view_position_changed)
401                DockFrame._OnClose(self, event)
402              self.Destroy()              self.Destroy()
403    
404      def SetMap(self, map):      def SetMap(self, map):
405          self.canvas.SetMap(map)          self.canvas.SetMap(map)
406            #self.legendPanel.SetMap(map)
407    
408      def Map(self):      def Map(self):
409          """Return the map displayed by this mainwindow"""          """Return the map displayed by this mainwindow"""
410    
411            # sanity check
412            #assert(self.canvas.Map() is self.legendPanel.GetMap())
413    
414          return self.canvas.Map()          return self.canvas.Map()
415    
416      def ShowSessionTree(self):      def ShowSessionTree(self):
# Line 348  class MainWindow(wxFrame): Line 419  class MainWindow(wxFrame):
419          if dialog is None:          if dialog is None:
420              dialog = tree.SessionTreeView(self, self.application, name)              dialog = tree.SessionTreeView(self, self.application, name)
421              self.add_dialog(name, dialog)              self.add_dialog(name, dialog)
422              dialog.Show(true)              dialog.Show(True)
423          else:          else:
424              # FIXME: bring dialog to front here              # FIXME: bring dialog to front here
425              pass              pass
426    
427    
428      def About(self):      def About(self):
429          self.RunMessageBox(_("About"),          self.RunMessageBox(_("About"),
430                             _("Thuban is a program for\n"                             _("Thuban v%s\n"
431                                #"Build Date: %s\n"
432                                "\n"
433                                "Thuban is a program for\n"
434                              "exploring geographic data.\n"                              "exploring geographic data.\n"
435                              "Copyright (C) 2001-2003 Intevation GmbH.\n"                              "Copyright (C) 2001-2003 Intevation GmbH.\n"
436                              "Thuban is licensed under the GPL"),                              "Thuban is licensed under the GNU GPL"
437                               % __ThubanVersion__), #__BuildDate__)),
438                             wxOK | wxICON_INFORMATION)                             wxOK | wxICON_INFORMATION)
439    
440      def AddLayer(self):      def AddLayer(self):
# Line 378  class MainWindow(wxFrame): Line 454  class MainWindow(wxFrame):
454                                     _("Can't open the file '%s'.") % filename)                                     _("Can't open the file '%s'.") % filename)
455              else:              else:
456                  if not has_layers:                  if not has_layers:
457                      # if we're adding a layer to an empty map, for the                      # if we're adding a layer to an empty map, fit the
458                      # new map to the window                      # new map to the window
459                      self.canvas.FitMapToWindow()                      self.canvas.FitMapToWindow()
460          dlg.Destroy()          dlg.Destroy()
# Line 391  class MainWindow(wxFrame): Line 467  class MainWindow(wxFrame):
467      def CanRemoveLayer(self):      def CanRemoveLayer(self):
468          """Return true if the currently selected layer can be deleted.          """Return true if the currently selected layer can be deleted.
469    
470          If no layer is selected return false.          If no layer is selected return False.
471    
472          The return value of this method determines whether the remove          The return value of this method determines whether the remove
473          layer command is sensitive in menu.          layer command is sensitive in menu.
# Line 399  class MainWindow(wxFrame): Line 475  class MainWindow(wxFrame):
475          layer = self.current_layer()          layer = self.current_layer()
476          if layer is not None:          if layer is not None:
477              return self.canvas.Map().CanRemoveLayer(layer)              return self.canvas.Map().CanRemoveLayer(layer)
478          return 0          return False
479    
480      def RaiseLayer(self):      def RaiseLayer(self):
481          layer = self.current_layer()          layer = self.current_layer()
# Line 416  class MainWindow(wxFrame): Line 492  class MainWindow(wxFrame):
492    
493          If no layer is selected, return None          If no layer is selected, return None
494          """          """
495          return self.interactor.SelectedLayer()          return self.canvas.SelectedLayer()
496    
497      def has_selected_layer(self):      def has_selected_layer(self):
498          """Return true if a layer is currently selected"""          """Return true if a layer is currently selected"""
499          return self.interactor.HasSelectedLayer()          return self.canvas.HasSelectedLayer()
500    
501      def choose_color(self):      def choose_color(self):
502          """Run the color selection dialog and return the selected color.          """Run the color selection dialog and return the selected color.
# Line 443  class MainWindow(wxFrame): Line 519  class MainWindow(wxFrame):
519          if layer is not None:          if layer is not None:
520              color = self.choose_color()              color = self.choose_color()
521              if color is not None:              if color is not None:
522                  layer.classification.SetDefaultFill(color)                  layer.GetClassification().SetDefaultFill(color)
523    
524      def LayerTransparentFill(self):      def LayerTransparentFill(self):
525          layer = self.current_layer()          layer = self.current_layer()
526          if layer is not None:          if layer is not None:
527              layer.classification.SetDefaultFill(None)              layer.GetClassification().SetDefaultFill(Color.Transparent)
528    
529      def LayerOutlineColor(self):      def LayerOutlineColor(self):
530          layer = self.current_layer()          layer = self.current_layer()
531          if layer is not None:          if layer is not None:
532              color = self.choose_color()              color = self.choose_color()
533              if color is not None:              if color is not None:
534                  layer.classification.SetDefaultStroke(color)                  layer.GetClassification().SetDefaultLineColor(color)
535    
536      def LayerNoOutline(self):      def LayerNoOutline(self):
537          layer = self.current_layer()          layer = self.current_layer()
538          if layer is not None:          if layer is not None:
539              layer.classification.SetDefaultStroke(None)              layer.GetClassification().SetDefaultLineColor(Color.Transparent)
540    
541      def HideLayer(self):      def HideLayer(self):
542          layer = self.current_layer()          layer = self.current_layer()
# Line 479  class MainWindow(wxFrame): Line 555  class MainWindow(wxFrame):
555              name = "table_view" + str(id(table))              name = "table_view" + str(id(table))
556              dialog = self.get_open_dialog(name)              dialog = self.get_open_dialog(name)
557              if dialog is None:              if dialog is None:
558                  dialog = tableview.LayerTableFrame(self, self.interactor, name,                  dialog = tableview.LayerTableFrame(self, name,
559                                                     _("Table: %s") % layer.Title(),                                                 _("Table: %s") % layer.Title(),
560                                                     layer, table)                                                     layer, table)
561                  self.add_dialog(name, dialog)                  self.add_dialog(name, dialog)
562                  dialog.Show(true)                  dialog.Show(true)
# Line 506  class MainWindow(wxFrame): Line 582  class MainWindow(wxFrame):
582          proj4Dlg.Destroy()          proj4Dlg.Destroy()
583    
584      def Classify(self):      def Classify(self):
585          classifyDlg = classifier.Classifier(NULL, self.current_layer())  
586            #
587          classifyDlg.ShowModal()          # the menu option for this should only be available if there
588          classifyDlg.Destroy()          # is a current layer, so we don't need to check if the
589            # current layer is None
590            #
591    
592            layer = self.current_layer()
593            self.OpenClassifier(layer)
594    
595        def OpenClassifier(self, layer, group = None):
596            name = "classifier" + str(id(layer))
597            dialog = self.get_open_dialog(name)
598    
599            if dialog is None:
600                dialog = classifier.Classifier(self, name, layer, group)
601                self.add_dialog(name, dialog)
602                dialog.Show()
603            dialog.Raise()
604    
605    
606        def ShowLegend(self):
607            name = "legend"
608            dialog = self.FindRegisteredDock(name)
609    
610            if dialog is None:
611                title = "Legend: %s" % self.Map().Title()
612                dialog = self.CreateDock(name, -1, title, wxLAYOUT_LEFT)
613                legend.LegendPanel(dialog, None, self)
614                dialog.Dock()
615    
616            dialog.GetPanel().SetMap(self.Map())
617            dialog.Show()
618    
619      def ZoomInTool(self):      def ZoomInTool(self):
620          self.canvas.ZoomInTool()          self.canvas.ZoomInTool()
# Line 533  class MainWindow(wxFrame): Line 638  class MainWindow(wxFrame):
638      def PrintMap(self):      def PrintMap(self):
639          self.canvas.Print()          self.canvas.Print()
640    
641      def identify_view_on_demand(self, layer, shape):      def identify_view_on_demand(self, layer, shapes):
642          name = "identify_view"          name = "identify_view"
643          if self.canvas.CurrentTool() == "IdentifyTool":          if self.canvas.CurrentTool() == "IdentifyTool":
644              if not self.dialog_open(name):              if not self.dialog_open(name):
645                  dialog = identifyview.IdentifyView(self, self.interactor, name)                  dialog = identifyview.IdentifyView(self, name)
646                  self.add_dialog(name, dialog)                  self.add_dialog(name, dialog)
647                  dialog.Show(true)                  dialog.Show(True)
648              else:              else:
649                  # FIXME: bring dialog to front?                  # FIXME: bring dialog to front?
650                  pass                  pass
# Line 602  def _has_visible_map(context): Line 707  def _has_visible_map(context):
707                  return 1                  return 1
708      return 0      return 0
709    
710    def _has_legend_shown(context):
711        """Return true if the legend window is shown"""
712        return context.mainwindow.FindRegisteredDock("legend") is None
713    
714    
715  # File menu  # File menu
716  _method_command("new_session", _("&New Session"), "NewSession")  _method_command("new_session", _("&New Session"), "NewSession")
717  _method_command("open_session", _("&Open Session"), "OpenSession")  _method_command("open_session", _("&Open Session"), "OpenSession")
718  _method_command("save_session", _("&Save Session"), "SaveSession")  _method_command("save_session", _("&Save Session"), "SaveSession")
719  _method_command("save_session_as", _("Save Session &As"), "SaveSessionAs")  _method_command("save_session_as", _("Save Session &As"), "SaveSessionAs")
720  _method_command("show_session_tree", _("Show Session &Tree"), "ShowSessionTree",  _method_command("show_session_tree", _("Session &Tree"), "ShowSessionTree",
721                  sensitive = _has_tree_window_shown)                  sensitive = _has_tree_window_shown)
722    _method_command("show_legend", _("Legend"), "ShowLegend",
723                    sensitive = _has_legend_shown)
724  _method_command("exit", _("E&xit"), "Exit")  _method_command("exit", _("E&xit"), "Exit")
725    
726  # Help menu  # Help menu
# Line 675  _method_command("layer_hide", _("&Hide") Line 786  _method_command("layer_hide", _("&Hide")
786  _method_command("layer_show_table", _("Show Ta&ble"), "LayerShowTable",  _method_command("layer_show_table", _("Show Ta&ble"), "LayerShowTable",
787                  helptext = _("Show the selected layer's table"),                  helptext = _("Show the selected layer's table"),
788                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
   
789  _method_command("layer_classifier", _("Classify"), "Classify",  _method_command("layer_classifier", _("Classify"), "Classify",
790                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
791    
# Line 684  main_menu = Menu("<main>", "<main>", Line 794  main_menu = Menu("<main>", "<main>",
794                   [Menu("file", _("&File"),                   [Menu("file", _("&File"),
795                         ["new_session", "open_session", None,                         ["new_session", "open_session", None,
796                          "save_session", "save_session_as", None,                          "save_session", "save_session_as", None,
797                          "show_session_tree", None,                          "show_session_tree",
798                            "show_legend", None,
799                          "exit"]),                          "exit"]),
800                    Menu("map", _("&Map"),                    Menu("map", _("&Map"),
801                         ["layer_add", "layer_remove",                         ["layer_add", "layer_remove",
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