| 49 |
""" |
""" |
| 50 |
|
|
| 51 |
def OnInit(self): |
def OnInit(self): |
| 52 |
sys.excepthook = show_exception_dialog |
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() |
| 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) |
session = load_session(filename, |
| 199 |
|
db_connection_callback = db_connection_callback) |
| 200 |
session.SetFilename(filename) |
session.SetFilename(filename) |
| 201 |
session.UnsetModified() |
session.UnsetModified() |
| 202 |
self.SetSession(session) |
self.SetSession(session) |
| 205 |
for layer in map.Layers(): |
for layer in map.Layers(): |
| 206 |
if isinstance(layer, RasterLayer) \ |
if isinstance(layer, RasterLayer) \ |
| 207 |
and not Thuban.Model.resource.has_gdal_support(): |
and not Thuban.Model.resource.has_gdal_support(): |
| 208 |
msg = _("The current session contains Image layers,\n" + |
msg = _("The current session contains Image layers,\n" |
| 209 |
"but the GDAL library is not available to " + |
"but the GDAL library is not available to " |
| 210 |
"draw them.") |
"draw them.") |
| 211 |
dlg = wx.wxMessageDialog(None, |
dlg = wx.wxMessageDialog(None, |
| 212 |
msg, |
msg, |
| 213 |
_("Library not available"), |
_("Library not available"), |
| 214 |
wx.wxOK | wx.wxICON_INFORMATION) |
wx.wxOK | wx.wxICON_INFORMATION) |
| 215 |
print msg |
print msg |
| 226 |
else: |
else: |
| 227 |
self.top.SetMap(None) |
self.top.SetMap(None) |
| 228 |
|
|
| 229 |
in_exception_dialog = 0 # flag: are we already inside the exception dialog? |
in_exception_dialog = 0 # flag: are we already inside the exception dialog? |
| 230 |
|
|
| 231 |
def show_exception_dialog(exc_type, exc_value, exc_traceback): |
def ShowExceptionDialog(self, exc_type, exc_value, exc_traceback): |
| 232 |
"""Show a message box with information about an exception. |
"""Show a message box with information about an exception. |
| 233 |
|
|
| 234 |
The parameters are the usual values describing an exception in |
The parameters are the usual values describing an exception in |
| 235 |
Python, the exception type, the value and the traceback. |
Python, the exception type, the value and the traceback. |
| 236 |
|
|
| 237 |
This method can be used as a value for the sys.excepthook. |
This method can be used as a value for the sys.excepthook. |
| 238 |
""" |
""" |
| 239 |
global in_exception_dialog |
|
| 240 |
|
if self.in_exception_dialog: |
| 241 |
if in_exception_dialog: |
return |
| 242 |
return |
self.in_exception_dialog = 1 |
| 243 |
in_exception_dialog = 1 |
while wxIsBusy(): |
| 244 |
while wxIsBusy(): |
wxEndBusyCursor() # reset the mouse cursor |
| 245 |
wxEndBusyCursor() # reset the mouse cursor |
|
| 246 |
|
try: |
| 247 |
try: |
lines = traceback.format_exception(exc_type, exc_value, |
| 248 |
lines = traceback.format_exception(exc_type, exc_value, |
exc_traceback) |
| 249 |
exc_traceback) |
message = "An unhandled exception occurred:\n%s\n" % exc_value+\ |
| 250 |
message = "An unhandled exception occurred:\n%s\n" % exc_value+\ |
"(please report to " \ |
| 251 |
"(please report to " \ |
"http://thuban.intevation.org/bugtracker.html)"\ |
| 252 |
"http://thuban.intevation.org/bugtracker.html)"\ |
"\n\n\n"+\ |
| 253 |
"\n\n\n"+\ |
"".join(lines) |
| 254 |
"".join(lines) |
print message |
| 255 |
print message |
|
| 256 |
|
# We don't use an explicit parent here because this method might |
| 257 |
# We don't use an explicit parent here because this method might |
# be called in circumstances where the main window doesn't exist |
| 258 |
# be called in circumstances where the main window doesn't exist |
# anymore. |
| 259 |
# anymore. |
dlg = wxScrolledMessageDialog(None, message, |
| 260 |
dlg = wxScrolledMessageDialog(None, message, |
"Thuban: Internal Error") |
| 261 |
"Thuban: Internal Error") |
dlg.ShowModal() |
| 262 |
dlg.ShowModal() |
dlg.Destroy() |
| 263 |
dlg.Destroy() |
|
| 264 |
|
finally: |
| 265 |
finally: |
self.in_exception_dialog = 0 |
| 266 |
in_exception_dialog = 0 |
# delete the last exception info that python keeps in |
| 267 |
# delete the last exception info that python keeps in |
# sys.last_* because especially last_traceback keeps |
| 268 |
# sys.last_* because especially last_traceback keeps |
# indirect references to all objects bound to local |
| 269 |
# indirect references to all objects bound to local |
# variables and this might prevent some object from being |
| 270 |
# variables and this might prevent some object from being |
# collected early enough. |
| 271 |
# collected early enough. |
sys.last_type = sys.last_value = sys.last_traceback = None |
|
sys.last_type = sys.last_value = sys.last_traceback = None |
|
| 272 |
|
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