/[thuban]/branches/WIP-pyshapelib-bramz/Thuban/UI/application.py
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revision 518 by jonathan, Tue Mar 11 17:34:21 2003 UTC revision 1133 by frank, Thu Jun 5 13:27:33 2003 UTC
# Line 13  Thuban's application object. Line 13  Thuban's application object.
13  __version__ = "$Revision$"  __version__ = "$Revision$"
14    
15  import sys, os  import sys, os
16    import os.path
17    from tempfile import mktemp
18    
19  import traceback  import traceback
20    
21  from wxPython.wx import *  from wxPython.wx import *
# Line 27  from Thuban.Model.messages import MAPS_C Line 30  from Thuban.Model.messages import MAPS_C
30    
31  import view  import view
32  import tree  import tree
 from interactor import Interactor  
33  import mainwindow  import mainwindow
34    
35  from messages import SESSION_REPLACED  from messages import SESSION_REPLACED
# Line 41  class ThubanApplication(wxApp, Publisher Line 43  class ThubanApplication(wxApp, Publisher
43    
44      All wxWindows programs have to have an instance of an application      All wxWindows programs have to have an instance of an application
45      class derived from wxApp. In Thuban the application class holds      class derived from wxApp. In Thuban the application class holds
46      references to the main window, the session and the interactor.      references to the main window and the session.
47      """      """
48    
49      def OnInit(self):      def OnInit(self):
# Line 49  class ThubanApplication(wxApp, Publisher Line 51  class ThubanApplication(wxApp, Publisher
51          if self.splash is not None:          if self.splash is not None:
52              self.splash.Show()              self.splash.Show()
53          self.read_startup_files()          self.read_startup_files()
         self.interactor = Interactor(None)  
54          self.top = self.CreateMainWindow()          self.top = self.CreateMainWindow()
55          self.SetTopWindow(self.top)          self.SetTopWindow(self.top)
56          if self.splash is None:          if self.splash is None:
# Line 64  class ThubanApplication(wxApp, Publisher Line 65  class ThubanApplication(wxApp, Publisher
65          Extend this in derived classes if needed.          Extend this in derived classes if needed.
66          """          """
67          self.session.Destroy()          self.session.Destroy()
68          self.interactor.Destroy()          self.session = None
69          Publisher.Destroy(self)          Publisher.Destroy(self)
70    
     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()  
   
71      def read_startup_files(self):      def read_startup_files(self):
72          """Read the startup files."""          """Read the startup files."""
73          # for now the startup file is ~/.thuban/thubanstart.py          # for now the startup file is ~/.thuban/thubanstart.py
74          dir =os.path.expanduser("~/.thuban")          if os.name == 'nt':
75                # This should result in something like the user directory ...
76                guess = os.path.dirname(os.path.dirname(os.path.dirname(mktemp())))
77                dir = os.path.join(guess, ".thuban")
78                if not os.path.isdir(dir):
79                    os.mkdir(dir)
80            else:
81                dir =os.path.expanduser("~/.thuban")
82          if os.path.isdir(dir):          if os.path.isdir(dir):
83              sys.path.append(dir)              sys.path.append(dir)
84              try:              try:
# Line 91  class ThubanApplication(wxApp, Publisher Line 90  class ThubanApplication(wxApp, Publisher
90                          # The ImportError exception was raised from                          # The ImportError exception was raised from
91                          # inside the thubanstart module.                          # inside the thubanstart module.
92                          sys.stderr.write(_("Cannot import the thubanstart"                          sys.stderr.write(_("Cannot import the thubanstart"
93                                           "module\n"))                                           " module\n"))
94                          traceback.print_exc(None, sys.stderr)                          traceback.print_exc(None, sys.stderr)
95                      else:                      else:
96                          # There's no thubanstart module.                          # There's no thubanstart module.
# Line 133  class ThubanApplication(wxApp, Publisher Line 132  class ThubanApplication(wxApp, Publisher
132          time.          time.
133          """          """
134          self.top.Show(True)          self.top.Show(True)
135          
136      def CreateMainWindow(self):      def CreateMainWindow(self):
137          """Create and return the main window for the application.          """Create and return the main window for the application.
138    
139          Override this in subclasses to instantiate the Thuban mainwindow          Override this in subclasses to instantiate the Thuban mainwindow
140          with different parameters or to use a different class for the          with different parameters or to use a different class for the
141          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.  
142          """          """
143          msg = (_("This is the wxPython-based Graphical User Interface"          msg = (_("This is the wxPython-based Graphical User Interface"
144                 " for exploring geographic data"))                 " for exploring geographic data"))
145          return mainwindow.MainWindow(NULL, -1, "Thuban", self, self.interactor,          return mainwindow.MainWindow(NULL, -1, "Thuban", self, None,
146                                       initial_message = msg)                                       initial_message = msg,
147                                         size = (600, 400))
148    
149      def Session(self):      def Session(self):
150          """Return the application's session object"""          """Return the application's session object"""
# Line 166  class ThubanApplication(wxApp, Publisher Line 162  class ThubanApplication(wxApp, Publisher
162          self.session = session          self.session = session
163          self.subscribe_session(self.session)          self.subscribe_session(self.session)
164          self.issue(SESSION_REPLACED)          self.issue(SESSION_REPLACED)
         self.interactor.SetSession(session)  
165          self.maps_changed()          self.maps_changed()
166          if oldsession is not None:          if oldsession is not None:
167              self.unsubscribe_session(oldsession)              self.unsubscribe_session(oldsession)
# Line 199  class ThubanApplication(wxApp, Publisher Line 194  class ThubanApplication(wxApp, Publisher
194          self.SetSession(create_empty_session())          self.SetSession(create_empty_session())
195    
196      def OpenSession(self, filename):      def OpenSession(self, filename):
197            """Open the session in the file named filename"""
198            # Make sure we deal with an absolute pathname. Otherwise we can
199            # get problems when saving because the saving code expects an
200            # absolute directory name
201            filename = os.path.abspath(filename)
202          session = load_session(filename)          session = load_session(filename)
203          session.SetFilename(filename)          session.SetFilename(filename)
204          session.UnsetModified()          session.UnsetModified()
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