/[thuban]/branches/WIP-pyshapelib-bramz/Thuban/UI/mainwindow.py
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revision 502 by jonathan, Mon Mar 10 15:11:53 2003 UTC revision 640 by jonathan, Thu Apr 10 14:36:08 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 27  import view Line 30  import view
30  import tree  import tree
31  import proj4dialog  import proj4dialog
32  import tableview, identifyview  import tableview, identifyview
33  import classifier  from Thuban.UI.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(DockFrame):
53    
54  class MainWindow(wxFrame):      # 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          EVT_CLOSE(self, self.OnClose)      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            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 329  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 340  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.SetTitle("Thuban - " + map.Title())
407            #self.legendPanel.SetMap(map)
408    
409      def Map(self):      def Map(self):
410          """Return the map displayed by this mainwindow"""          """Return the map displayed by this mainwindow"""
411    
412            # sanity check
413            #assert(self.canvas.Map() is self.legendPanel.GetMap())
414    
415          return self.canvas.Map()          return self.canvas.Map()
416    
417      def ShowSessionTree(self):      def ToggleSessionTree(self):
418            """If the session tree is shown close it otherwise create a new tree"""
419          name = "session_tree"          name = "session_tree"
420          dialog = self.get_open_dialog(name)          dialog = self.get_open_dialog(name)
421          if dialog is None:          if dialog is None:
422              dialog = tree.SessionTreeView(self, self.application, name)              dialog = tree.SessionTreeView(self, self.application, name)
423              self.add_dialog(name, dialog)              self.add_dialog(name, dialog)
424              dialog.Show(true)              dialog.Show(True)
425          else:          else:
426              # FIXME: bring dialog to front here              dialog.Close()
427              pass  
428        def SessionTreeShown(self):
429            """Return true iff the session tree is currently shown"""
430            return self.get_open_dialog("session_tree") is not None
431    
432      def About(self):      def About(self):
433          self.RunMessageBox(_("About"),          self.RunMessageBox(_("About"),
434                             _("Thuban is a program for\n"                             _("Thuban v%s\n"
435                                #"Build Date: %s\n"
436                                "\n"
437                                "Thuban is a program for\n"
438                              "exploring geographic data.\n"                              "exploring geographic data.\n"
439                              "Copyright (C) 2001-2003 Intevation GmbH.\n"                              "Copyright (C) 2001-2003 Intevation GmbH.\n"
440                              "Thuban is licensed under the GPL"),                              "Thuban is licensed under the GNU GPL"
441                               % __ThubanVersion__), #__BuildDate__)),
442                             wxOK | wxICON_INFORMATION)                             wxOK | wxICON_INFORMATION)
443    
444      def AddLayer(self):      def AddLayer(self):
# Line 385  class MainWindow(wxFrame): Line 458  class MainWindow(wxFrame):
458                                     _("Can't open the file '%s'.") % filename)                                     _("Can't open the file '%s'.") % filename)
459              else:              else:
460                  if not has_layers:                  if not has_layers:
461                      # if we're adding a layer to an empty map, for the                      # if we're adding a layer to an empty map, fit the
462                      # new map to the window                      # new map to the window
463                      self.canvas.FitMapToWindow()                      self.canvas.FitMapToWindow()
464          dlg.Destroy()          dlg.Destroy()
# Line 398  class MainWindow(wxFrame): Line 471  class MainWindow(wxFrame):
471      def CanRemoveLayer(self):      def CanRemoveLayer(self):
472          """Return true if the currently selected layer can be deleted.          """Return true if the currently selected layer can be deleted.
473    
474          If no layer is selected return false.          If no layer is selected return False.
475    
476          The return value of this method determines whether the remove          The return value of this method determines whether the remove
477          layer command is sensitive in menu.          layer command is sensitive in menu.
# Line 406  class MainWindow(wxFrame): Line 479  class MainWindow(wxFrame):
479          layer = self.current_layer()          layer = self.current_layer()
480          if layer is not None:          if layer is not None:
481              return self.canvas.Map().CanRemoveLayer(layer)              return self.canvas.Map().CanRemoveLayer(layer)
482          return 0          return False
483    
484      def RaiseLayer(self):      def RaiseLayer(self):
485          layer = self.current_layer()          layer = self.current_layer()
# Line 423  class MainWindow(wxFrame): Line 496  class MainWindow(wxFrame):
496    
497          If no layer is selected, return None          If no layer is selected, return None
498          """          """
499          return self.interactor.SelectedLayer()          return self.canvas.SelectedLayer()
500    
501      def has_selected_layer(self):      def has_selected_layer(self):
502          """Return true if a layer is currently selected"""          """Return true if a layer is currently selected"""
503          return self.interactor.HasSelectedLayer()          return self.canvas.HasSelectedLayer()
504    
505      def choose_color(self):      def choose_color(self):
506          """Run the color selection dialog and return the selected color.          """Run the color selection dialog and return the selected color.
# Line 445  class MainWindow(wxFrame): Line 518  class MainWindow(wxFrame):
518          dlg.Destroy()          dlg.Destroy()
519          return color          return color
520    
     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)  
   
     def LayerTransparentFill(self):  
         layer = self.current_layer()  
         if layer is not None:  
             layer.GetClassification().SetDefaultFill(Color.None)  
   
     def LayerOutlineColor(self):  
         layer = self.current_layer()  
         if layer is not None:  
             color = self.choose_color()  
             if color is not None:  
                 layer.GetClassification().SetDefaultLineColor(color)  
   
     def LayerNoOutline(self):  
         layer = self.current_layer()  
         if layer is not None:  
             layer.GetClassification().SetDefaultLineColor(Color.None)  
   
521      def HideLayer(self):      def HideLayer(self):
522          layer = self.current_layer()          layer = self.current_layer()
523          if layer is not None:          if layer is not None:
# Line 486  class MainWindow(wxFrame): Line 535  class MainWindow(wxFrame):
535              name = "table_view" + str(id(table))              name = "table_view" + str(id(table))
536              dialog = self.get_open_dialog(name)              dialog = self.get_open_dialog(name)
537              if dialog is None:              if dialog is None:
538                  dialog = tableview.LayerTableFrame(self, self.interactor, name,                  dialog = tableview.LayerTableFrame(self, name,
539                                                     _("Table: %s") % layer.Title(),                                                 _("Table: %s") % layer.Title(),
540                                                     layer, table)                                                     layer, table)
541                  self.add_dialog(name, dialog)                  self.add_dialog(name, dialog)
542                  dialog.Show(true)                  dialog.Show(true)
# Line 512  class MainWindow(wxFrame): Line 561  class MainWindow(wxFrame):
561              map.SetProjection(proj)              map.SetProjection(proj)
562          proj4Dlg.Destroy()          proj4Dlg.Destroy()
563    
564      def Classify(self):      def LayerEditProperties(self):
565    
566          #          #
567          # the menu option for this should only be available if there          # the menu option for this should only be available if there
# Line 521  class MainWindow(wxFrame): Line 570  class MainWindow(wxFrame):
570          #          #
571    
572          layer = self.current_layer()          layer = self.current_layer()
573          name = "classifier" + str(id(layer))          self.OpenLayerProperties(layer)
574    
575        def OpenLayerProperties(self, layer, group = None):
576            name = "layer_properties" + str(id(layer))
577          dialog = self.get_open_dialog(name)          dialog = self.get_open_dialog(name)
578    
579          if dialog is None:          if dialog is None:
580              dialog = classifier.Classifier(self, self.interactor,              dialog = Classifier(self, name, layer, group)
                                            name, self.current_layer())  
581              self.add_dialog(name, dialog)              self.add_dialog(name, dialog)
582              dialog.Show()              dialog.Show()
583            dialog.Raise()
584    
585    
586        def ShowLegend(self):
587            if not self.LegendShown():
588                self.ToggleLegend()
589    
590        def ToggleLegend(self):
591            """Show the legend if it's not shown otherwise hide it again"""
592            name = "legend"
593            dialog = self.FindRegisteredDock(name)
594    
595            if dialog is None:
596                dialog = self.CreateDock(name, -1, _("Legend"), wxLAYOUT_LEFT)
597                legend.LegendPanel(dialog, None, self)
598                dialog.Dock()
599                dialog.GetPanel().SetMap(self.Map())
600                dialog.Show()
601            else:
602                dialog.Show(not dialog.IsShown())
603    
604        def LegendShown(self):
605            """Return true iff the legend is currently open"""
606            dialog = self.FindRegisteredDock("legend")
607            return dialog is not None and dialog.IsShown()
608    
609      def ZoomInTool(self):      def ZoomInTool(self):
610          self.canvas.ZoomInTool()          self.canvas.ZoomInTool()
# Line 552  class MainWindow(wxFrame): Line 628  class MainWindow(wxFrame):
628      def PrintMap(self):      def PrintMap(self):
629          self.canvas.Print()          self.canvas.Print()
630    
631      def identify_view_on_demand(self, layer, shape):      def identify_view_on_demand(self, layer, shapes):
632          name = "identify_view"          name = "identify_view"
633          if self.canvas.CurrentTool() == "IdentifyTool":          if self.canvas.CurrentTool() == "IdentifyTool":
634              if not self.dialog_open(name):              if not self.dialog_open(name):
635                  dialog = identifyview.IdentifyView(self, self.interactor, name)                  dialog = identifyview.IdentifyView(self, name)
636                  self.add_dialog(name, dialog)                  self.add_dialog(name, dialog)
637                  dialog.Show(true)                  dialog.Show(True)
638              else:              else:
639                  # FIXME: bring dialog to front?                  # FIXME: bring dialog to front?
640                  pass                  pass
# Line 574  def call_method(context, methodname, *ar Line 650  def call_method(context, methodname, *ar
650      apply(getattr(context.mainwindow, methodname), args)      apply(getattr(context.mainwindow, methodname), args)
651    
652  def _method_command(name, title, method, helptext = "",  def _method_command(name, title, method, helptext = "",
653                      icon = "", sensitive = None):                      icon = "", sensitive = None, checked = None):
654      """Add a command implemented by a method of the mainwindow object"""      """Add a command implemented by a method of the mainwindow object"""
655      registry.Add(Command(name, title, call_method, args=(method,),      registry.Add(Command(name, title, call_method, args=(method,),
656                           helptext = helptext, icon = icon,                           helptext = helptext, icon = icon,
657                           sensitive = sensitive))                           sensitive = sensitive, checked = checked))
658    
659  def make_check_current_tool(toolname):  def make_check_current_tool(toolname):
660      """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 608  def _can_remove_layer(context): Line 684  def _can_remove_layer(context):
684    
685  def _has_tree_window_shown(context):  def _has_tree_window_shown(context):
686      """Return true if the tree window is shown"""      """Return true if the tree window is shown"""
687      return context.mainwindow.get_open_dialog("session_tree") is None      return context.mainwindow.SessionTreeShown()
688    
689  def _has_visible_map(context):  def _has_visible_map(context):
690      """Return true iff theres a visible map in the mainwindow.      """Return true iff theres a visible map in the mainwindow.
# Line 621  def _has_visible_map(context): Line 697  def _has_visible_map(context):
697                  return 1                  return 1
698      return 0      return 0
699    
700    def _has_legend_shown(context):
701        """Return true if the legend window is shown"""
702        return context.mainwindow.LegendShown()
703    
704    
705  # File menu  # File menu
706  _method_command("new_session", _("&New Session"), "NewSession")  _method_command("new_session", _("&New Session"), "NewSession")
707  _method_command("open_session", _("&Open Session"), "OpenSession")  _method_command("open_session", _("&Open Session"), "OpenSession")
708  _method_command("save_session", _("&Save Session"), "SaveSession")  _method_command("save_session", _("&Save Session"), "SaveSession")
709  _method_command("save_session_as", _("Save Session &As"), "SaveSessionAs")  _method_command("save_session_as", _("Save Session &As"), "SaveSessionAs")
710  _method_command("show_session_tree", _("Show Session &Tree"), "ShowSessionTree",  _method_command("toggle_session_tree", _("Session &Tree"), "ToggleSessionTree",
711                  sensitive = _has_tree_window_shown)                  checked = _has_tree_window_shown)
712    _method_command("toggle_legend", _("Legend"), "ToggleLegend",
713                    checked = _has_legend_shown)
714  _method_command("exit", _("E&xit"), "Exit")  _method_command("exit", _("E&xit"), "Exit")
715    
716  # Help menu  # Help menu
# Line 666  _method_command("layer_add", _("&Add Lay Line 748  _method_command("layer_add", _("&Add Lay
748  _method_command("layer_remove", _("&Remove Layer"), "RemoveLayer",  _method_command("layer_remove", _("&Remove Layer"), "RemoveLayer",
749                  helptext = _("Remove selected layer(s)"),                  helptext = _("Remove selected layer(s)"),
750                  sensitive = _can_remove_layer)                  sensitive = _can_remove_layer)
 _method_command("layer_fill_color", _("&Fill Color"), "LayerFillColor",  
                 helptext = _("Set the fill color of selected layer(s)"),  
                 sensitive = _has_selected_layer)  
 _method_command("layer_transparent_fill", _("&Transparent Fill"),  
                 "LayerTransparentFill",  
                 helptext = _("Do not fill the selected layer(s)"),  
                 sensitive = _has_selected_layer)  
 _method_command("layer_outline_color", _("&Outline Color"), "LayerOutlineColor",  
                 helptext = _("Set the outline color of selected layer(s)"),  
                 sensitive = _has_selected_layer)  
 _method_command("layer_no_outline", _("&No Outline"), "LayerNoOutline",  
                 helptext= _("Do not draw the outline of the selected layer(s)"),  
                 sensitive = _has_selected_layer)  
751  _method_command("layer_raise", _("&Raise"), "RaiseLayer",  _method_command("layer_raise", _("&Raise"), "RaiseLayer",
752                  helptext = _("Raise selected layer(s)"),                  helptext = _("Raise selected layer(s)"),
753                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
# Line 694  _method_command("layer_hide", _("&Hide") Line 763  _method_command("layer_hide", _("&Hide")
763  _method_command("layer_show_table", _("Show Ta&ble"), "LayerShowTable",  _method_command("layer_show_table", _("Show Ta&ble"), "LayerShowTable",
764                  helptext = _("Show the selected layer's table"),                  helptext = _("Show the selected layer's table"),
765                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
766    _method_command("layer_properties", _("Properties"), "LayerEditProperties",
 _method_command("layer_classifier", _("Classify"), "Classify",  
767                  sensitive = _has_selected_layer)                  sensitive = _has_selected_layer)
768    
769  # the menu structure  # the menu structure
# Line 703  main_menu = Menu("<main>", "<main>", Line 771  main_menu = Menu("<main>", "<main>",
771                   [Menu("file", _("&File"),                   [Menu("file", _("&File"),
772                         ["new_session", "open_session", None,                         ["new_session", "open_session", None,
773                          "save_session", "save_session_as", None,                          "save_session", "save_session_as", None,
774                          "show_session_tree", None,                          "toggle_session_tree", None,
775                          "exit"]),                          "exit"]),
776                    Menu("map", _("&Map"),                    Menu("map", _("&Map"),
777                         ["layer_add", "layer_remove",                         ["layer_add", "layer_remove",
# Line 715  main_menu = Menu("<main>", "<main>", Line 783  main_menu = Menu("<main>", "<main>",
783                          None,                          None,
784                          "map_full_extent",                          "map_full_extent",
785                          None,                          None,
786                            "toggle_legend",
787                            None,
788                          "map_print"]),                          "map_print"]),
789                    Menu("layer", _("&Layer"),                    Menu("layer", _("&Layer"),
790                         ["layer_fill_color", "layer_transparent_fill",                          ["layer_raise", "layer_lower",
                         "layer_outline_color", "layer_no_outline",  
                         None,  
                         "layer_raise", "layer_lower",  
791                          None,                          None,
792                          "layer_show", "layer_hide",                          "layer_show", "layer_hide",
793                          None,                          None,
794                          "layer_show_table",                          "layer_show_table",
795                          None,                          None,
796                          "layer_classifier"]),                          "layer_properties"]),
797                    Menu("help", _("&Help"),                    Menu("help", _("&Help"),
798                         ["help_about"])])                         ["help_about"])])
799    
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