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LibCore: Add CObject::for_each_child_of_type<T>()

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Use this to iterate over all the GRadioButtons in a group.
This commit is contained in:
Andreas Kling 2019-05-27 04:18:24 +02:00
parent 0c85d3dba9
commit 3873c51781
3 changed files with 21 additions and 5 deletions
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4
LibGUI/GRadioButton.cpp
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@ -55,9 +55,7 @@ void GRadioButton::for_each_in_group(Callback callback)
{
if (!parent())
return;
for_each_child_widget([&] (auto& child) {
if (!child.is_radio_button())
return IterationDecision::Continue;
parent()->for_each_child_of_type<GRadioButton>([&] (auto& child) {
return callback(static_cast<GRadioButton&>(child));
});
}

7
LibGUI/GRadioButton.h
View file

@ -20,3 +20,10 @@ private:
template<typename Callback> void for_each_in_group(Callback);
static Size circle_size();
};
template<> inline bool is<GRadioButton>(const CObject& object)
{
if (!is<GWidget>(object))
return false;
return to<GWidget>(object).is_radio_button();
}