text: #ifndef DALI_RELAYOUT_CONTAINER_H
  #define DALI_RELAYOUT_CONTAINER_H
  
  /*
   * Copyright (c) 2019 Samsung Electronics Co., Ltd.
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   * http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   *
   */
  
  // INTERNAL INCLUDES
  #include <dali/public-api/actors/actor.h>
  #include <dali/public-api/math/vector2.h>
  
  namespace Dali
  {
  /**
   * @addtogroup dali_core_size_negotiation
   * @{
   */
  
  class RelayoutContainer;
  typedef RelayoutContainer* RelayoutContainerPtr;
  
  
  /**
   * @brief Interface to encapsulate information required for relayout.
   * @SINCE_1_0.0
   */
  class RelayoutContainer
  {
  public:
  
    /**
     * @brief Default constructor.
     *
     * @SINCE_1_0.0
     */
    RelayoutContainer() {}
  
    /**
     * @brief Virtual destructor.
     * @SINCE_1_0.0
     */
    virtual ~RelayoutContainer() {}
  
    /**
     * @brief Adds relayout information to the container if it doesn't already exist.
     *
     * @SINCE_1_0.0
     * @param actor The actor to relayout
     * @param size The size to relayout
     */
    virtual void Add( const Actor& actor, const Vector2& size ) = 0;
  
  };
  
  /**
   * @}
   */
  } // namespace Dali
  
  #endif // DALI_RELAYOUT_CONTAINER_H
  