Hello!
I've run into the issue I can't resolve on my own. I have
a Gio::ListModel implementation and a (C++) class derived
from said implementation.
Calling G_IS_LIST_MODEL(gobj) on the implementation's gobj returns 1.
However, G_IS_LIST_MODEL(gobj) on the derived class's gobj returns 0.
How to make inheritance work? I've been unable to find any
guides/tutorials on this issue, hence the question.
The implementation is defined as follows:
class Item { ... }
class ModelImpl: public Gio::ListModel, public Glib::Object {
public: ModelImpl(): Glib::ObjectBase(typeid(ModelImpl)),
Gio::ListModel() {}
virtual ~ModelImpl() = default;
protected:
std::vector<Item*> items;
GType get_item_type_vfunc() override {
return Item::get_type();
}
guint get_n_items_vfunc() override {
return items.size();
}
gpointer get_item_vfunc(guint position) override {
if (position < items.size()) {
return items[position]->gobj();
}
return nullptr;
}
};
And the derived class:
class Derived: public ModelImpl {
Derived(): ModelImpl() {}
}
Thanks in advance!
Sergey Smirnykh
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