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#include "layout_control.hpp"
#include "window.hpp"
namespace cru::ui {
void ControlAddChildCheck(Control* control) {
if (control->GetParent() != nullptr)
throw std::invalid_argument("The control already has a parent.");
if (dynamic_cast<Window*>(control))
throw std::invalid_argument("Can't add a window as child.");
}
LayoutControl::~LayoutControl() {
for (const auto child : children_) delete child;
}
void LayoutControl::AddChild(Control* control, const int position) {
ControlAddChildCheck(control);
if (position < 0 || static_cast<decltype(children_.size())>(position) >
this->children_.size())
throw std::invalid_argument("The position is out of range.");
children_.insert(this->children_.cbegin() + position, control);
control->_SetParent(this);
control->_SetDescendantWindow(GetWindow());
OnAddChild(control, position);
}
void LayoutControl::RemoveChild(const int position) {
if (position < 0 || static_cast<decltype(this->children_.size())>(position) >=
this->children_.size())
throw std::invalid_argument("The position is out of range.");
const auto i = children_.cbegin() + position;
const auto child = *i;
children_.erase(i);
child->_SetParent(nullptr);
child->_SetDescendantWindow(nullptr);
OnRemoveChild(child, position);
}
void LayoutControl::OnAddChild(Control* child, int position) {}
void LayoutControl::OnRemoveChild(Control* child, int position) {}
} // namespace cru::ui
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