/***

  Olive - Non-Linear Video Editor
  Copyright (C) 2019 Olive Team

  This program is free software: you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation, either version 3 of the License, or
  (at your option) any later version.

  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with this program.  If not, see <http://www.gnu.org/licenses/>.

***/

#include "item.h"

Item::Item() :
  parent_(nullptr)
{
}

Item::~Item()
{
  // Delete all children
  for (int i=0;i<children_.size();i++) {
    delete children_.at(i);
  }
}

void Item::add_child(Item* c)
{
  if (c->parent_ == this) {
    return;
  }

  children_.append(c);
  c->parent_ = this;
}

void Item::remove_child(Item *c)
{
  if (c->parent_ != this) {
    return;
  }

  children_.removeAll(c);
  c->parent_ = nullptr;
}

int Item::child_count()
{
  return children_.size();
}

Item *Item::child(int i)
{
  return children_.at(i);
}

const QString &Item::name() const
{
  return name_;
}

void Item::set_name(const QString &n)
{
  name_ = n;
}

Item *Item::parent() const
{
  return parent_;
}

void Item::set_parent(Item *p)
{
  if (parent_ != nullptr) {
    parent_->remove_child(this);
  }

  p->add_child(this);
}