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# Copyright (C) 2001, 2002 by Intevation GmbH |
# Copyright (C) 2001, 2002, 2003 by Intevation GmbH |
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# Authors: |
# Authors: |
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# Jan-Oliver Wagner <[email protected]> |
# Jan-Oliver Wagner <[email protected]> |
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# Bernhard Herzog <[email protected]> |
# Bernhard Herzog <[email protected]> |
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from Thuban.Lib.connector import Publisher |
from Thuban.Lib.connector import Publisher |
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from Thuban import _ |
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from Thuban.Model.session import create_empty_session |
from Thuban.Model.session import create_empty_session |
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from Thuban.Model.save import save_session |
from Thuban.Model.save import save_session |
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from Thuban.Model.load import load_session |
from Thuban.Model.load import load_session |
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""" |
""" |
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def OnInit(self): |
def OnInit(self): |
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self.splash = self.splash_screen() |
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if self.splash is not None: |
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self.splash.Show() |
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self.read_startup_files() |
self.read_startup_files() |
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self.interactor = Interactor(None) |
self.interactor = Interactor(None) |
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top = self.CreateMainWindow() |
self.top = self.CreateMainWindow() |
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top.Show(true) |
self.SetTopWindow(self.top) |
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self.top = top |
if self.splash is None: |
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self.SetTopWindow(top) |
self.ShowMainWindow() |
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self.session = None |
self.session = None |
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self.create_session() |
self.create_session() |
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return true |
return true |
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def OnExit(self): |
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"""Clean up code. |
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Extend this in derived classes if needed. |
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""" |
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self.session.Destroy() |
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self.interactor.Destroy() |
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Publisher.Destroy(self) |
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def MainLoop(self): |
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"""Call the inherited MainLoop method and then call OnExit. |
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In wxPython OnExit isn't called automatically, unfortunately, so |
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we do it here. |
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""" |
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wxApp.MainLoop(self) |
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self.OnExit() |
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def read_startup_files(self): |
def read_startup_files(self): |
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"""Read the startup files.""" |
"""Read the startup files.""" |
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# for now the startup file is ~/.thuban/thubanstart.py |
# for now the startup file is ~/.thuban/thubanstart.py |
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if tb.tb_next is not None: |
if tb.tb_next is not None: |
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# The ImportError exception was raised from |
# The ImportError exception was raised from |
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# inside the thubanstart module. |
# inside the thubanstart module. |
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sys.stderr.write("Cannot import the thubanstart" |
sys.stderr.write(_("Cannot import the thubanstart" |
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"module\n") |
"module\n")) |
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traceback.print_exc(None, sys.stderr) |
traceback.print_exc(None, sys.stderr) |
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else: |
else: |
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# There's no thubanstart module. |
# There's no thubanstart module. |
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sys.stderr.write("No thubanstart module available\n") |
sys.stderr.write(_("No thubanstart module available\n")) |
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finally: |
finally: |
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# make sure we delete the traceback object, |
# make sure we delete the traceback object, |
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# otherwise there's be circular references involving |
# otherwise there's be circular references involving |
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# the current stack frame |
# the current stack frame |
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del tb |
del tb |
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except: |
except: |
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sys.stderr.write("Cannot import the thubanstart module\n") |
sys.stderr.write(_("Cannot import the thubanstart module\n")) |
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traceback.print_exc(None, sys.stderr) |
traceback.print_exc(None, sys.stderr) |
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else: |
else: |
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# There's no .thuban directory |
# There's no .thuban directory |
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sys.stderr.write("No ~/.thuban directory\n") |
sys.stderr.write(_("No ~/.thuban directory\n")) |
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def splash_screen(self): |
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"""Create and return a splash screen. |
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This method is called by OnInit to determine whether the |
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application should have a splashscreen. If the application |
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should display a splash screen override this method in a derived |
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class and have it create and return the wxSplashScreen instance. |
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The implementation of this method in the derived class should |
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also arranged for ShowMainWindow to be called. |
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The default implementation simply returns None so that no splash |
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screen is shown and ShowMainWindow will be called automatically. |
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""" |
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return None |
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def ShowMainWindow(self): |
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"""Show the main window |
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Normally this method is automatically called by OnInit to show |
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the main window. However, if the splash_screen method has |
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returned a splashscreen it is expected that the derived class |
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also arranges for ShowMainWindow to be called at the appropriate |
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time. |
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""" |
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self.top.Show(true) |
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def CreateMainWindow(self): |
def CreateMainWindow(self): |
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"""Create and return the main window for the application. |
"""Create and return the main window for the application. |
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for the interactor argument of the standard Thuban main window |
for the interactor argument of the standard Thuban main window |
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class) has already been instantiated. |
class) has already been instantiated. |
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""" |
""" |
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msg = ("This is the wxPython-based Graphical User Interface" |
msg = (_("This is the wxPython-based Graphical User Interface" |
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" for exploring geographic data") |
" for exploring geographic data")) |
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return mainwindow.MainWindow(NULL, -1, "Thuban", self, self.interactor, |
return mainwindow.MainWindow(NULL, -1, "Thuban", self, self.interactor, |
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initial_message = msg) |
initial_message = msg) |
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