/[thuban]/branches/WIP-pyshapelib-bramz/Thuban/UI/application.py
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revision 1390 by jonathan, Thu Jul 10 14:53:38 2003 UTC revision 1650 by bh, Mon Aug 25 15:05:49 2003 UTC
# Line 26  from Thuban.Lib.fileutil import get_appl Line 26  from Thuban.Lib.fileutil import get_appl
26  from Thuban import _  from Thuban import _
27  from Thuban.Model.session import create_empty_session  from Thuban.Model.session import create_empty_session
28  from Thuban.Model.save import save_session  from Thuban.Model.save import save_session
29  from Thuban.Model.load import load_session  from Thuban.Model.load import load_session, LoadCancelled
30  from Thuban.Model.messages import MAPS_CHANGED  from Thuban.Model.messages import MAPS_CHANGED
31  from Thuban.Model.layer import RasterLayer  from Thuban.Model.layer import RasterLayer
32  import Thuban.Model.resource  import Thuban.Model.resource
# Line 38  import mainwindow Line 38  import mainwindow
38  from messages import SESSION_REPLACED  from messages import SESSION_REPLACED
39    
40    
   
41  class ThubanApplication(wxApp, Publisher):  class ThubanApplication(wxApp, Publisher):
42    
43      """      """
# Line 50  class ThubanApplication(wxApp, Publisher Line 49  class ThubanApplication(wxApp, Publisher
49      """      """
50    
51      def OnInit(self):      def OnInit(self):
52            sys.excepthook = self.ShowExceptionDialog
53          self.splash = self.splash_screen()          self.splash = self.splash_screen()
54          if self.splash is not None:          if self.splash is not None:
55              self.splash.Show()              self.splash.Show()
# Line 189  class ThubanApplication(wxApp, Publisher Line 189  class ThubanApplication(wxApp, Publisher
189          """          """
190          self.SetSession(create_empty_session())          self.SetSession(create_empty_session())
191    
192      def OpenSession(self, filename):      def OpenSession(self, filename, db_connection_callback = None):
193          """Open the session in the file named filename"""          """Open the session in the file named filename"""
194          # Make sure we deal with an absolute pathname. Otherwise we can          # Make sure we deal with an absolute pathname. Otherwise we can
195          # get problems when saving because the saving code expects an          # get problems when saving because the saving code expects an
196          # absolute directory name          # absolute directory name
197          filename = os.path.abspath(filename)          filename = os.path.abspath(filename)
198          session = load_session(filename)          try:
199                session = load_session(filename,
200                                   db_connection_callback=db_connection_callback)
201            except LoadCancelled:
202                return
203          session.SetFilename(filename)          session.SetFilename(filename)
204          session.UnsetModified()          session.UnsetModified()
205          self.SetSession(session)          self.SetSession(session)
# Line 204  class ThubanApplication(wxApp, Publisher Line 208  class ThubanApplication(wxApp, Publisher
208              for layer in map.Layers():              for layer in map.Layers():
209                  if isinstance(layer, RasterLayer) \                  if isinstance(layer, RasterLayer) \
210                      and not Thuban.Model.resource.has_gdal_support():                      and not Thuban.Model.resource.has_gdal_support():
211                      msg = _("The current session contains Image layers,\n" +                      msg = _("The current session contains Image layers,\n"
212                              "but the GDAL library is not available to " +                              "but the GDAL library is not available to "
213                              "draw them.")                              "draw them.")
214                      dlg = wx.wxMessageDialog(None,                      dlg = wx.wxMessageDialog(None,
215                                               msg,                                               msg,
216                                               _("Library not available"),                                               _("Library not available"),
217                                               wx.wxOK | wx.wxICON_INFORMATION)                                               wx.wxOK | wx.wxICON_INFORMATION)
218                      print msg                      print msg
# Line 229  class ThubanApplication(wxApp, Publisher Line 233  class ThubanApplication(wxApp, Publisher
233    
234      def ShowExceptionDialog(self, exc_type, exc_value, exc_traceback):      def ShowExceptionDialog(self, exc_type, exc_value, exc_traceback):
235          """Show a message box with information about an exception.          """Show a message box with information about an exception.
236        
237          The parameters are the usual values describing an exception in          The parameters are the usual values describing an exception in
238          Python, the exception type, the value and the traceback.          Python, the exception type, the value and the traceback.
239        
240          This method can be used as a value for the sys.excepthook.          This method can be used as a value for the sys.excepthook.
241          """          """
242    
243          if self.in_exception_dialog:          if self.in_exception_dialog:
244              return              return
245          self.in_exception_dialog = 1          self.in_exception_dialog = 1
# Line 243  class ThubanApplication(wxApp, Publisher Line 248  class ThubanApplication(wxApp, Publisher
248    
249          try:          try:
250              lines = traceback.format_exception(exc_type, exc_value,              lines = traceback.format_exception(exc_type, exc_value,
251                                                 exc_traceback)                                              exc_traceback)
252              message = "An unhandled exception occurred:\n%s\n" % exc_value+\              message = "An unhandled exception occurred:\n%s\n" % exc_value+\
253                        "(please report to " \                      "(please report to " \
254                        "http://thuban.intevation.org/bugtracker.html)"\                      "http://thuban.intevation.org/bugtracker.html)"\
255                        "\n\n\n"+\                      "\n\n\n"+\
256                        "".join(lines)                      "".join(lines)
257              print message              print message
258    
259              # We don't use an explicit parent here because this method might              # We don't use an explicit parent here because this method might
260              # be called in circumstances where the main window doesn't exist              # be called in circumstances where the main window doesn't exist
261              # anymore.              # anymore.
262              dlg = wxScrolledMessageDialog(None, message,              dlg = wxScrolledMessageDialog(None, message,
263                                            "Thuban: Internal Error")                                          "Thuban: Internal Error")
264              dlg.ShowModal()              dlg.ShowModal()
265              dlg.Destroy()              dlg.Destroy()
266    
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