/[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 1150 by frank, Wed Jun 11 10:45:49 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    
18  import traceback  import traceback
19    
20  from wxPython.wx import *  from wxPython.wx import *
21    
22  from Thuban.Lib.connector import Publisher  from Thuban.Lib.connector import Publisher
23    from Thuban.Lib.fileutil import get_application_dir
24    
25  from Thuban import _  from Thuban import _
26  from Thuban.Model.session import create_empty_session  from Thuban.Model.session import create_empty_session
# 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")          dir = get_application_dir()
75          if os.path.isdir(dir):          if os.path.isdir(dir):
76              sys.path.append(dir)              sys.path.append(dir)
77              try:              try:
# Line 91  class ThubanApplication(wxApp, Publisher Line 83  class ThubanApplication(wxApp, Publisher
83                          # The ImportError exception was raised from                          # The ImportError exception was raised from
84                          # inside the thubanstart module.                          # inside the thubanstart module.
85                          sys.stderr.write(_("Cannot import the thubanstart"                          sys.stderr.write(_("Cannot import the thubanstart"
86                                           "module\n"))                                           " module\n"))
87                          traceback.print_exc(None, sys.stderr)                          traceback.print_exc(None, sys.stderr)
88                      else:                      else:
89                          # There's no thubanstart module.                          # There's no thubanstart module.
# Line 133  class ThubanApplication(wxApp, Publisher Line 125  class ThubanApplication(wxApp, Publisher
125          time.          time.
126          """          """
127          self.top.Show(True)          self.top.Show(True)
128          
129      def CreateMainWindow(self):      def CreateMainWindow(self):
130          """Create and return the main window for the application.          """Create and return the main window for the application.
131    
132          Override this in subclasses to instantiate the Thuban mainwindow          Override this in subclasses to instantiate the Thuban mainwindow
133          with different parameters or to use a different class for the          with different parameters or to use a different class for the
134          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.  
135          """          """
136          msg = (_("This is the wxPython-based Graphical User Interface"          msg = (_("This is the wxPython-based Graphical User Interface"
137                 " for exploring geographic data"))                 " for exploring geographic data"))
138          return mainwindow.MainWindow(NULL, -1, "Thuban", self, self.interactor,          return mainwindow.MainWindow(NULL, -1, "Thuban", self, None,
139                                       initial_message = msg)                                       initial_message = msg,
140                                         size = (600, 400))
141    
142      def Session(self):      def Session(self):
143          """Return the application's session object"""          """Return the application's session object"""
# Line 166  class ThubanApplication(wxApp, Publisher Line 155  class ThubanApplication(wxApp, Publisher
155          self.session = session          self.session = session
156          self.subscribe_session(self.session)          self.subscribe_session(self.session)
157          self.issue(SESSION_REPLACED)          self.issue(SESSION_REPLACED)
         self.interactor.SetSession(session)  
158          self.maps_changed()          self.maps_changed()
159          if oldsession is not None:          if oldsession is not None:
160              self.unsubscribe_session(oldsession)              self.unsubscribe_session(oldsession)
# Line 199  class ThubanApplication(wxApp, Publisher Line 187  class ThubanApplication(wxApp, Publisher
187          self.SetSession(create_empty_session())          self.SetSession(create_empty_session())
188    
189      def OpenSession(self, filename):      def OpenSession(self, filename):
190            """Open the session in the file named filename"""
191            # Make sure we deal with an absolute pathname. Otherwise we can
192            # get problems when saving because the saving code expects an
193            # absolute directory name
194            filename = os.path.abspath(filename)
195          session = load_session(filename)          session = load_session(filename)
196          session.SetFilename(filename)          session.SetFilename(filename)
197          session.UnsetModified()          session.UnsetModified()
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