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Two ways binding works also work as three ways binding and more

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A side effect is that the order of calling set_binding and link_two_ways is no longer relevant
This commit is contained in:
Olivier Goffart 2020-09-28 10:42:27 +02:00
parent 09e9336c75
commit 3b6679ed4b
7 changed files with 129 additions and 73 deletions
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12
api/sixtyfps-cpp/include/sixtyfps_properties.h
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@ -60,7 +60,7 @@ struct Property
*reinterpret_cast<T *>(value) = (*reinterpret_cast<F *>(user_data))();
},
new F(binding), [](void *user_data) { delete reinterpret_cast<F *>(user_data); },
nullptr);
nullptr, nullptr);
}
inline void set_animated_value(const T &value,
@ -91,10 +91,16 @@ struct Property
*reinterpret_cast<const T *>(value));
return true;
};
auto intercept_binding_fn = [] (void *user_data, void *value) {
cbindgen_private::sixtyfps_property_set_binding_internal(
&reinterpret_cast<TwoWayBinding *>(user_data)->common_property->inner,
value);
return true;
};
cbindgen_private::sixtyfps_property_set_binding(&p1->inner, call_fn,
new TwoWayBinding{common_property}, del_fn, intercept_fn);
new TwoWayBinding{common_property}, del_fn, intercept_fn, intercept_binding_fn);
cbindgen_private::sixtyfps_property_set_binding(&p2->inner, call_fn,
new TwoWayBinding{common_property}, del_fn, intercept_fn);
new TwoWayBinding{common_property}, del_fn, intercept_fn, intercept_binding_fn);
}
/// Internal (private) constructor used by link_two_way