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Gui: Allow to override onBeforeChange in view objects

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This commit is contained in:
wmayer
2024-11-27 19:52:00 +01:00
committed by wwmayer
parent c07df6b392
commit a303eaf28e
2 changed files with 39 additions and 0 deletions
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32
src/Gui/ViewProviderFeaturePython.cpp
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@@ -638,6 +638,38 @@ void ViewProviderFeaturePythonImp::onChanged(const App::Property* prop)
}
}
void ViewProviderFeaturePythonImp::onBeforeChange(const App::Property* prop)
{
if(py_onBeforeChange.isNone())
return;
// Run the onChanged method of the proxy object.
Base::PyGILStateLocker lock;
try {
if (has__object__) {
Py::Tuple args(1);
const char* prop_name = object->getPropertyName(prop);
if (prop_name) {
args.setItem(0, Py::String(prop_name));
Base::pyCall(py_onBeforeChange.ptr(),args.ptr());
}
}
else {
Py::Tuple args(2);
args.setItem(0, Py::Object(object->getPyObject(), true));
const char* prop_name = object->getPropertyName(prop);
if (prop_name) {
args.setItem(1, Py::String(prop_name));
Base::pyCall(py_onBeforeChange.ptr(),args.ptr());
}
}
}
catch (Py::Exception&) {
Base::PyException e; // extract the Python error text
e.ReportException();
}
}
void ViewProviderFeaturePythonImp::startRestoring()
{
}