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LibGUI: Add "Vector<GWidget*> GWidget::child_widgets()"

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This is quite inefficient since it constructs a new Vector each time.
This commit is contained in:
Andreas Kling 2019-11-11 19:12:32 +01:00
parent 3ef287eb9f
commit 524da0ad01
2 changed files with 16 additions and 1 deletions
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12
Libraries/LibGUI/GWidget.cpp
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@ -675,3 +675,15 @@ void GWidget::save_to(AK::JsonObject& json)
json.set("size_policy", String::format("[%s,%s]", to_string(horizontal_size_policy()), to_string(vertical_size_policy())));
CObject::save_to(json);
}
Vector<GWidget*> GWidget::child_widgets() const
{
Vector<GWidget*> widgets;
widgets.ensure_capacity(children().size());
for (auto& child : const_cast<GWidget*>(this)->children()) {
if (child.is_widget())
widgets.append(static_cast<GWidget*>(&child));
}
return widgets;
}

5
Libraries/LibGUI/GWidget.h
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@ -124,7 +124,8 @@ public:
bool is_focused() const;
void set_focus(bool);
enum class ShouldRespectGreediness { No = 0, Yes };
enum class ShouldRespectGreediness { No = 0,
Yes };
struct HitTestResult {
GWidget* widget { nullptr };
Point local_position;
@ -220,6 +221,8 @@ public:
});
}
Vector<GWidget*> child_widgets() const;
virtual bool is_radio_button() const { return false; }
virtual bool is_abstract_button() const { return false; }