ctrlr_deleter.hpp

#pragma once
#include "base_controller.hpp"
#include <widgets/container_widget.hpp>
 
namespace bugui
{
template <typename T>
struct ctrlr_deleter : base_controller
{
  void on_Delete(button_presser& p)
  {
    if (!p.get_bool()) return;
 
    auto d{get_deepest_held()};
    if (d.empty()) return;
    auto it{d.begin()};
 
    while (it != d.end())
    {
      if (!(*it)->handle_Delete())
      {
        recursive_child_Delete(*it);
 
        auto new_d{get_deepest_held()};
 
        if (d == new_d)
        {
          it++;
          continue;
        }
 
        d = new_d;
        it = d.begin();
      }
      else
        it++;
    }
 
    repaint();
  }
 
  using base_controller::base_controller;
 
private:
  void recursive_child_Delete(base_widget* cw)
  {
    auto p{cw->get_parent()};
 
    if (p->handle_child_Delete())
      return;
    else
      recursive_child_Delete(p);
  }
};

template <has_Delete T>
struct ctrlr_deleter<T> : base_controller
{ using base_controller::base_controller; };
 
} // namespace bugui