2025-07-01

2026-03-17 14:30:01 -06:00
parent f9a22056dd
commit 62b5978595
4579 changed files with 1257472 additions and 0 deletions
@@ -0,0 +1,72 @@
+'''
+Copyright (C) 2023 CG Cookie
+https://github.com/CGCookie/retopoflow
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+'''
+
+import contextlib
+
+from ..common.fsm import FSM
+from ..common.debug import debugger, ExceptionHandler
+from ..common.functools import find_fns
+
+class CookieCutter_Exceptions:
+    @staticmethod
+    def _handle_exception(e, action, fatal=False):
+        print(f'CookieCutter_Exceptions: handling caught exception')
+        print(f'    action: {action}')
+        debugger.print_exception()
+        if fatal: assert False
+        if hasattr(CookieCutter_Exceptions, '_instance'):
+            CookieCutter_Exceptions._instance._callback_exception_callbacks(e)
+
+    @staticmethod
+    @contextlib.contextmanager
+    def try_exception(action, *, fatal=False, fn_succeed=None, fn_exception=None, fn_finally=None):
+        try:
+            yield
+            if fn_succeed: fn_succeed()
+        except Exception as e:
+            CookieCutter_Exceptions._handle_exception(e, action, fatal=fatal)
+            if fn_exception: fn_exception(e)
+        finally:
+            if fn_finally: fn_finally()
+
+    @staticmethod
+    def _exception_callback_wrapper(fn):
+        fn._cc_exception_callback = True
+        return fn
+    Exception_Callback = _exception_callback_wrapper
+
+    @ExceptionHandler.on_exception
+    def _callback_exception_callbacks(self, e):
+        print(f'CookieCutter_Exceptions._callback_exception_callbacks: {e}')
+        # debugger.dcallstack(0)
+        for fn_name in self._exception_callbacks:
+            try:
+                fn = getattr(self, fn_name)
+                fn(e)
+            except Exception as e2:
+                print(f'CookieCutter caught exception while calling back exception callbacks: {fn.__name__}')
+                debugger.print_exception()
+
+    def _cc_exception_init(self):
+        self._exception_callbacks = [fn.__name__ for (_,fn) in find_fns(self, '_cc_exception_callback')]
+        self._exceptionhandler = ExceptionHandler(self)
+        #self._exceptionhandler.add_callback(self._callback_exception_callbacks, universal=True)
+        CookieCutter_Exceptions._instance = self
+
+    def _cc_exception_done(self):
+        del self._exceptionhandler
+        del CookieCutter_Exceptions._instance
+        self._exceptionhandler = None
+        ExceptionHandler.clear_universal_callbacks()