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#pragma once
#include "Control.h"
namespace cru::ui::controls {
template <typename TRenderObject>
class LayoutControl : public Control {
protected:
LayoutControl() : container_render_object_(new TRenderObject()) {
container_render_object_->SetAttachedControl(this);
}
public:
using Control::AddChild;
using Control::InsertChildAt;
using Control::RemoveChildAt;
Index GetChildCount() const { return children_.size(); }
Control* GetChildAt(Index index) const { return children_[index]; }
Index IndexOfChild(Control* control) const {
auto it = std::find(children_.begin(), children_.end(), control);
if (it == children_.end()) {
return -1;
}
return it - children_.begin();
}
render::RenderObject* GetRenderObject() const override {
return container_render_object_.get();
}
TRenderObject* GetContainerRenderObject() const {
return container_render_object_.get();
}
const typename TRenderObject::ChildLayoutData& GetChildLayoutData(
Index position) {
return container_render_object_->GetChildLayoutDataAt(position);
}
void SetChildLayoutData(Index position,
typename TRenderObject::ChildLayoutData data) {
container_render_object_->SetChildLayoutDataAt(position, data);
}
protected:
void OnChildInserted(Control* control, Index index) override {
container_render_object_->AddChild(control->GetRenderObject(), index);
}
void OnChildRemoved([[maybe_unused]] Control* control, Index index) override {
container_render_object_->RemoveChild(index);
}
private:
std::unique_ptr<TRenderObject> container_render_object_;
std::vector<Control*> children_;
};
} // namespace cru::ui::controls
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