/[thuban]/branches/WIP-pyshapelib-bramz/Thuban/UI/application.py
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revision 1704 by jan, Wed Sep 3 07:02:36 2003 UTC revision 2072 by bh, Tue Feb 17 13:14:49 2004 UTC
# Line 1  Line 1 
1  # Copyright (C) 2001, 2002, 2003 by Intevation GmbH  # Copyright (C) 2001, 2002, 2003, 2004 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 51  class ThubanApplication(wxApp, Publisher Line 51  class ThubanApplication(wxApp, Publisher
51    
52      def OnInit(self):      def OnInit(self):
53          sys.excepthook = self.ShowExceptionDialog          sys.excepthook = self.ShowExceptionDialog
54    
55            # Initialize instance variables before trying to create any
56            # windows.  Creating windows can start an event loop if
57            # e.g. message boxes are popped up for some reason, and event
58            # handlers, especially EVT_UPDATE_UI may want to access things
59            # from the application.
60    
61            # Defaults for the directories used in file dialogs
62            self.path={"data":".", "projection":"."}
63    
64            self.session = None
65            self.top = None
66            self.create_session()
67    
68            # Create an optional splash screen and then the mainwindow
69          self.splash = self.splash_screen()          self.splash = self.splash_screen()
70          if self.splash is not None:          if self.splash is not None:
71              self.splash.Show()              self.splash.Show()
# Line 59  class ThubanApplication(wxApp, Publisher Line 74  class ThubanApplication(wxApp, Publisher
74          self.SetTopWindow(self.top)          self.SetTopWindow(self.top)
75          if self.splash is None:          if self.splash is None:
76              self.ShowMainWindow()              self.ShowMainWindow()
77          self.session = None  
         self.create_session()  
78          return True          return True
79    
80      def OnExit(self):      def OnExit(self):
# Line 164  class ThubanApplication(wxApp, Publisher Line 178  class ThubanApplication(wxApp, Publisher
178              self.unsubscribe_session(oldsession)              self.unsubscribe_session(oldsession)
179              oldsession.Destroy()              oldsession.Destroy()
180    
181        def SetPath(self, group, filename):
182            """Store the application's default path for file dialogs extracted
183            from a given filename.
184            """
185            self.path[group] = os.path.dirname( filename )
186    
187        def Path(self, group):
188            """Return the application's default path for file dialogs."""
189            return self.path[group]
190    
191      def subscribe_session(self, session):      def subscribe_session(self, session):
192          """Subscribe to some of the sessions channels.          """Subscribe to some of the sessions channels.
193    
# Line 234  class ThubanApplication(wxApp, Publisher Line 258  class ThubanApplication(wxApp, Publisher
258          save_session(self.session, self.session.filename)          save_session(self.session, self.session.filename)
259    
260      def maps_changed(self, *args):      def maps_changed(self, *args):
261          if self.session.HasMaps():          """Subscribed to the session's MAPS_CHANGED messages.
262              self.top.SetMap(self.session.Maps()[0])  
263          else:          Set the toplevel window's map to the map in the session. This is
264              self.top.SetMap(None)          done by calling the window's SetMap method with the map as
265            argument. If the session doesn't have any maps None is used
266            instead.
267    
268            Currently Thuban can only really handle at most one map in a
269            sessions so the first map in the session's list of maps as
270            returned by the Maps method is used.
271            """
272            # The mainwindow may not have been created yet, so check whether
273            # it has been created before calling any of its methods
274            if self.top is not None:
275                if self.session.HasMaps():
276                    self.top.SetMap(self.session.Maps()[0])
277                else:
278                    self.top.SetMap(None)
279    
280      in_exception_dialog = 0 # flag: are we already inside the exception dialog?      in_exception_dialog = 0 # flag: are we already inside the exception dialog?
281    
# Line 259  class ThubanApplication(wxApp, Publisher Line 297  class ThubanApplication(wxApp, Publisher
297          try:          try:
298              lines = traceback.format_exception(exc_type, exc_value,              lines = traceback.format_exception(exc_type, exc_value,
299                                              exc_traceback)                                              exc_traceback)
300              message = _("An unhandled exception occurred:\n%s\n") % exc_value+\              message = _("An unhandled exception occurred:\n%s\n"
301                      _("(please report to") +\                          "(please report to"
302                      " http://thuban.intevation.org/bugtracker.html)"\                          " http://thuban.intevation.org/bugtracker.html)"
303                      "\n\n\n"+\                          "\n\n%s") % (exc_value, "".join(lines))
                     "".join(lines)  
304              print message              print message
305    
306              # We don't use an explicit parent here because this method might              # We don't use an explicit parent here because this method might
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