/[thuban]/branches/WIP-pyshapelib-bramz/Thuban/UI/mainwindow.py
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revision 450 by jonathan, Tue Mar 4 10:33:28 2003 UTC revision 535 by bh, Fri Mar 14 20:42:18 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 32  from menu import Menu Line 35  from menu import Menu
35    
36  from context import Context  from context import Context
37  from command import registry, Command, ToolCommand  from command import registry, Command, ToolCommand
38  from messages import SELECTED_SHAPE, VIEW_POSITION  from messages import LAYER_SELECTED, SHAPES_SELECTED, VIEW_POSITION
39    
40    
41  # the directory where the toolbar icons are stored  # the directory where the toolbar icons are stored
# Line 42  bitmapext = ".xpm" Line 45  bitmapext = ".xpm"
45    
46  class MainWindow(wxFrame):  class MainWindow(wxFrame):
47    
48        # Some messages that can be subscribed/unsubscribed directly through
49        # the MapCanvas come in fact from other objects. This is a map to
50        # map those messages to the names of the instance variables they
51        # actually come from. This delegation is implemented in the
52        # Subscribe and unsubscribed methods
53        delegated_messages = {LAYER_SELECTED: "canvas",
54                              SHAPES_SELECTED: "canvas"}
55    
56        # Methods delegated to some instance variables. The delegation is
57        # implemented in the __getattr__ method.
58        delegated_methods = {"SelectLayer": "canvas",
59                             "SelectShapes": "canvas",
60                             }
61    
62      def __init__(self, parent, ID, title, application, interactor,      def __init__(self, parent, ID, title, application, interactor,
63                   initial_message = None, size = wxSize(-1, -1)):                   initial_message = None, size = wxSize(-1, -1)):
64          wxFrame.__init__(self, parent, ID, title, wxDefaultPosition, size)          wxFrame.__init__(self, parent, ID, title, wxDefaultPosition, size)
65    
66          self.application = application          self.application = application
         self.interactor = interactor  
67    
68          self.CreateStatusBar()          self.CreateStatusBar()
69          if initial_message:          if initial_message:
# Line 66  class MainWindow(wxFrame): Line 82  class MainWindow(wxFrame):
82          toolbar.Realize()          toolbar.Realize()
83    
84          # Create the map canvas          # Create the map canvas
85          canvas = view.MapCanvas(self, -1, interactor)          canvas = view.MapCanvas(self, -1)
86          canvas.Subscribe(VIEW_POSITION, self.view_position_changed)          canvas.Subscribe(VIEW_POSITION, self.view_position_changed)
87            canvas.Subscribe(SHAPES_SELECTED, self.identify_view_on_demand)
88          self.canvas = canvas          self.canvas = canvas
89    
90          self.init_dialogs()          self.init_dialogs()
91    
         interactor.Subscribe(SELECTED_SHAPE, self.identify_view_on_demand)  
   
92          EVT_CLOSE(self, self.OnClose)          EVT_CLOSE(self, self.OnClose)
93    
94        def Subscribe(self, channel, *args):
95            """Subscribe a function to a message channel.
96    
97            If channel is one of the delegated messages call the appropriate
98            object's Subscribe method. Otherwise do nothing.
99            """
100            if channel in self.delegated_messages:
101                object = getattr(self, self.delegated_messages[channel])
102                object.Subscribe(channel, *args)
103            else:
104                print "Trying to subscribe to unsupported channel %s" % channel
105    
106        def Unsubscribe(self, channel, *args):
107            """Unsubscribe a function from a message channel.
108    
109            If channel is one of the delegated messages call the appropriate
110            object's Unsubscribe method. Otherwise do nothing.
111            """
112            if channel in self.delegated_messages:
113                object = getattr(self, self.delegated_messages[channel])
114                object.Unsubscribe(channel, *args)
115    
116        def __getattr__(self, attr):
117            """If attr is one of the delegated methods return that method
118    
119            Otherwise raise AttributeError.
120            """
121            if attr in self.delegated_methods:
122                return getattr(getattr(self, self.delegated_methods[attr]), attr)
123            raise AttributeError(attr)
124    
125      def init_ids(self):      def init_ids(self):
126          """Initialize the ids"""          """Initialize the ids"""
127          self.current_id = 6000          self.current_id = 6000
# Line 296  class MainWindow(wxFrame): Line 342  class MainWindow(wxFrame):
342              result = wxID_NO              result = wxID_NO
343          return result          return result
344    
345        def prepare_new_session(self):
346            for d in self.dialogs.values():
347                if not isinstance(d, tree.SessionTreeView):
348                    d.Close()
349    
350      def NewSession(self):      def NewSession(self):
351          self.save_modified_session()          self.save_modified_session()
352            self.prepare_new_session()
353          self.application.SetSession(create_empty_session())          self.application.SetSession(create_empty_session())
354    
355      def OpenSession(self):      def OpenSession(self):
356          self.save_modified_session()          self.save_modified_session()
357          dlg = wxFileDialog(self, _("Open Session"), ".", "",          dlg = wxFileDialog(self, _("Open Session"), ".", "", "*.thuban", wxOPEN)
                            "*.thuban", wxOPEN)  
358          if dlg.ShowModal() == wxID_OK:          if dlg.ShowModal() == wxID_OK:
359                self.prepare_new_session()
360              self.application.OpenSession(dlg.GetPath())              self.application.OpenSession(dlg.GetPath())
361          dlg.Destroy()          dlg.Destroy()
362    
363      def SaveSession(self):      def SaveSession(self):
364          if self.application.session.filename == None:          if self.application.session.filename == None:
365              self.SaveSessionAs()              self.SaveSessionAs()
366          self.application.SaveSession()          else:
367                self.application.SaveSession()
368    
369      def SaveSessionAs(self):      def SaveSessionAs(self):
370          dlg = wxFileDialog(self, _("Save Session As"), ".", "",          dlg = wxFileDialog(self, _("Save Session As"), ".", "",
# Line 348  class MainWindow(wxFrame): Line 401  class MainWindow(wxFrame):
401          if dialog is None:          if dialog is None:
402              dialog = tree.SessionTreeView(self, self.application, name)              dialog = tree.SessionTreeView(self, self.application, name)
403              self.add_dialog(name, dialog)              self.add_dialog(name, dialog)
404              dialog.Show(true)              dialog.Show(True)
405          else:          else:
406              # FIXME: bring dialog to front here              # FIXME: bring dialog to front here
407              pass              pass
408    
409    
410      def About(self):      def About(self):
411          self.RunMessageBox(_("About"),          self.RunMessageBox(_("About"),
412                             _("Thuban is a program for\n"                             _("Thuban v%s\n"
413                                #"Build Date: %s\n"
414                                "\n"
415                                "Thuban is a program for\n"
416                              "exploring geographic data.\n"                              "exploring geographic data.\n"
417                              "Copyright (C) 2001-2003 Intevation GmbH.\n"                              "Copyright (C) 2001-2003 Intevation GmbH.\n"
418                              "Thuban is licensed under the GPL"),                              "Thuban is licensed under the GNU GPL"
419                               % __ThubanVersion__), #__BuildDate__)),
420                             wxOK | wxICON_INFORMATION)                             wxOK | wxICON_INFORMATION)
421    
422      def AddLayer(self):      def AddLayer(self):
# Line 378  class MainWindow(wxFrame): Line 436  class MainWindow(wxFrame):
436                                     _("Can't open the file '%s'.") % filename)                                     _("Can't open the file '%s'.") % filename)
437              else:              else:
438                  if not has_layers:                  if not has_layers:
439                      # if we're adding a layer to an empty map, for the                      # if we're adding a layer to an empty map, fit the
440                      # new map to the window                      # new map to the window
441                      self.canvas.FitMapToWindow()                      self.canvas.FitMapToWindow()
442          dlg.Destroy()          dlg.Destroy()
# Line 416  class MainWindow(wxFrame): Line 474  class MainWindow(wxFrame):
474    
475          If no layer is selected, return None          If no layer is selected, return None
476          """          """
477          return self.interactor.SelectedLayer()          return self.canvas.SelectedLayer()
478    
479      def has_selected_layer(self):      def has_selected_layer(self):
480          """Return true if a layer is currently selected"""          """Return true if a layer is currently selected"""
481          return self.interactor.HasSelectedLayer()          return self.canvas.HasSelectedLayer()
482    
483      def choose_color(self):      def choose_color(self):
484          """Run the color selection dialog and return the selected color.          """Run the color selection dialog and return the selected color.
# Line 455  class MainWindow(wxFrame): Line 513  class MainWindow(wxFrame):
513          if layer is not None:          if layer is not None:
514              color = self.choose_color()              color = self.choose_color()
515              if color is not None:              if color is not None:
516                  layer.GetClassification().SetDefaultStroke(color)                  layer.GetClassification().SetDefaultLineColor(color)
517    
518      def LayerNoOutline(self):      def LayerNoOutline(self):
519          layer = self.current_layer()          layer = self.current_layer()
520          if layer is not None:          if layer is not None:
521              layer.GetClassification().SetDefaultStroke(Color.None)              layer.GetClassification().SetDefaultLineColor(Color.None)
522    
523      def HideLayer(self):      def HideLayer(self):
524          layer = self.current_layer()          layer = self.current_layer()
# Line 479  class MainWindow(wxFrame): Line 537  class MainWindow(wxFrame):
537              name = "table_view" + str(id(table))              name = "table_view" + str(id(table))
538              dialog = self.get_open_dialog(name)              dialog = self.get_open_dialog(name)
539              if dialog is None:              if dialog is None:
540                  dialog = tableview.LayerTableFrame(self, self.interactor, name,                  dialog = tableview.LayerTableFrame(self, name,
541                                                     _("Table: %s") % layer.Title(),                                                 _("Table: %s") % layer.Title(),
542                                                     layer, table)                                                     layer, table)
543                  self.add_dialog(name, dialog)                  self.add_dialog(name, dialog)
544                  dialog.Show(true)                  dialog.Show(true)
# Line 506  class MainWindow(wxFrame): Line 564  class MainWindow(wxFrame):
564          proj4Dlg.Destroy()          proj4Dlg.Destroy()
565    
566      def Classify(self):      def Classify(self):
567          classifyDlg = classifier.Classifier(NULL, self.current_layer())  
568            #
569          classifyDlg.ShowModal()          # the menu option for this should only be available if there
570          classifyDlg.Destroy()          # is a current layer, so we don't need to check if the
571            # current layer is None
572            #
573    
574            layer = self.current_layer()
575            name = "classifier" + str(id(layer))
576            dialog = self.get_open_dialog(name)
577    
578            if dialog is None:
579                dialog = classifier.Classifier(self, name, self.current_layer())
580                self.add_dialog(name, dialog)
581                dialog.Show()
582    
583      def ZoomInTool(self):      def ZoomInTool(self):
584          self.canvas.ZoomInTool()          self.canvas.ZoomInTool()
# Line 533  class MainWindow(wxFrame): Line 602  class MainWindow(wxFrame):
602      def PrintMap(self):      def PrintMap(self):
603          self.canvas.Print()          self.canvas.Print()
604    
605      def identify_view_on_demand(self, layer, shape):      def identify_view_on_demand(self, layer, shapes):
606          name = "identify_view"          name = "identify_view"
607          if self.canvas.CurrentTool() == "IdentifyTool":          if self.canvas.CurrentTool() == "IdentifyTool":
608              if not self.dialog_open(name):              if not self.dialog_open(name):
609                  dialog = identifyview.IdentifyView(self, self.interactor, name)                  dialog = identifyview.IdentifyView(self, name)
610                  self.add_dialog(name, dialog)                  self.add_dialog(name, dialog)
611                  dialog.Show(true)                  dialog.Show(true)
612              else:              else:
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