/[thuban]/branches/WIP-pyshapelib-bramz/Thuban/UI/application.py
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revision 503 by jonathan, Mon Mar 10 15:12:09 2003 UTC revision 699 by bh, Thu Apr 17 15:20:14 2003 UTC
# Line 27  from Thuban.Model.messages import MAPS_C Line 27  from Thuban.Model.messages import MAPS_C
27    
28  import view  import view
29  import tree  import tree
 from interactor import Interactor  
30  import mainwindow  import mainwindow
31    
32  from messages import SESSION_REPLACED  from messages import SESSION_REPLACED
# Line 41  class ThubanApplication(wxApp, Publisher Line 40  class ThubanApplication(wxApp, Publisher
40    
41      All wxWindows programs have to have an instance of an application      All wxWindows programs have to have an instance of an application
42      class derived from wxApp. In Thuban the application class holds      class derived from wxApp. In Thuban the application class holds
43      references to the main window, the session and the interactor.      references to the main window and the session.
44      """      """
45    
46      def OnInit(self):      def OnInit(self):
# Line 49  class ThubanApplication(wxApp, Publisher Line 48  class ThubanApplication(wxApp, Publisher
48          if self.splash is not None:          if self.splash is not None:
49              self.splash.Show()              self.splash.Show()
50          self.read_startup_files()          self.read_startup_files()
         self.interactor = Interactor(None)  
51          self.top = self.CreateMainWindow()          self.top = self.CreateMainWindow()
52          self.SetTopWindow(self.top)          self.SetTopWindow(self.top)
53          if self.splash is None:          if self.splash is None:
54              self.ShowMainWindow()              self.ShowMainWindow()
55          self.session = None          self.session = None
56          self.create_session()          self.create_session()
57          return true          return True
58    
59      def OnExit(self):      def OnExit(self):
60          """Clean up code.          """Clean up code.
# Line 64  class ThubanApplication(wxApp, Publisher Line 62  class ThubanApplication(wxApp, Publisher
62          Extend this in derived classes if needed.          Extend this in derived classes if needed.
63          """          """
64          self.session.Destroy()          self.session.Destroy()
         self.interactor.Destroy()  
65          Publisher.Destroy(self)          Publisher.Destroy(self)
66    
     def MainLoop(self):  
         """Call the inherited MainLoop method and then call OnExit.  
   
         In wxPython OnExit isn't called automatically, unfortunately, so  
         we do it here.  
         """  
         wxApp.MainLoop(self)  
         self.OnExit()  
   
67      def read_startup_files(self):      def read_startup_files(self):
68          """Read the startup files."""          """Read the startup files."""
69          # for now the startup file is ~/.thuban/thubanstart.py          # for now the startup file is ~/.thuban/thubanstart.py
# Line 91  class ThubanApplication(wxApp, Publisher Line 79  class ThubanApplication(wxApp, Publisher
79                          # The ImportError exception was raised from                          # The ImportError exception was raised from
80                          # inside the thubanstart module.                          # inside the thubanstart module.
81                          sys.stderr.write(_("Cannot import the thubanstart"                          sys.stderr.write(_("Cannot import the thubanstart"
82                                           "module\n"))                                           " module\n"))
83                          traceback.print_exc(None, sys.stderr)                          traceback.print_exc(None, sys.stderr)
84                      else:                      else:
85                          # There's no thubanstart module.                          # There's no thubanstart module.
# Line 132  class ThubanApplication(wxApp, Publisher Line 120  class ThubanApplication(wxApp, Publisher
120          also arranges for ShowMainWindow to be called at the appropriate          also arranges for ShowMainWindow to be called at the appropriate
121          time.          time.
122          """          """
123          self.top.Show(true)          self.top.Show(True)
124          
125      def CreateMainWindow(self):      def CreateMainWindow(self):
126          """Create and return the main window for the application.          """Create and return the main window for the application.
127    
128          Override this in subclasses to instantiate the Thuban mainwindow          Override this in subclasses to instantiate the Thuban mainwindow
129          with different parameters or to use a different class for the          with different parameters or to use a different class for the
130          main window.          main window.
   
         when this method is called by OnInit self.interactor (to be used  
         for the interactor argument of the standard Thuban main window  
         class) has already been instantiated.  
131          """          """
132          msg = (_("This is the wxPython-based Graphical User Interface"          msg = (_("This is the wxPython-based Graphical User Interface"
133                 " for exploring geographic data"))                 " for exploring geographic data"))
134          return mainwindow.MainWindow(NULL, -1, "Thuban", self, self.interactor,          return mainwindow.MainWindow(NULL, -1, "Thuban", self, None,
135                                       initial_message = msg)                                       initial_message = msg)
136    
137      def Session(self):      def Session(self):
# Line 166  class ThubanApplication(wxApp, Publisher Line 150  class ThubanApplication(wxApp, Publisher
150          self.session = session          self.session = session
151          self.subscribe_session(self.session)          self.subscribe_session(self.session)
152          self.issue(SESSION_REPLACED)          self.issue(SESSION_REPLACED)
         self.interactor.SetSession(session)  
153          self.maps_changed()          self.maps_changed()
154          if oldsession is not None:          if oldsession is not None:
155              self.unsubscribe_session(oldsession)              self.unsubscribe_session(oldsession)
# Line 199  class ThubanApplication(wxApp, Publisher Line 182  class ThubanApplication(wxApp, Publisher
182          self.SetSession(create_empty_session())          self.SetSession(create_empty_session())
183    
184      def OpenSession(self, filename):      def OpenSession(self, filename):
185            """Open the session in the file named filename"""
186            # Make sure we deal with an absolute pathname. Otherwise we can
187            # get problems when saving because the saving code expects an
188            # absolute directory name
189            filename = os.path.abspath(filename)
190          session = load_session(filename)          session = load_session(filename)
191          session.SetFilename(filename)          session.SetFilename(filename)
192          session.UnsetModified()          session.UnsetModified()
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