text: /*
   * Copyright (c) 2014 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-toolkit/internal/controls/scrollable/scroll-view/scroll-view-effect-impl.h>
  #include <dali-toolkit/internal/controls/scrollable/scroll-view/scroll-view-impl.h>
  
  using namespace Dali;
  
  namespace Dali
  {
  
  namespace Toolkit
  {
  
  namespace Internal
  {
  
  ScrollViewEffect::ScrollViewEffect()
  : mScrollViewImpl(NULL)
  {
  }
  
  ScrollViewEffect::~ScrollViewEffect()
  {
  }
  
  void ScrollViewEffect::Attach(Toolkit::ScrollView& scrollView)
  {
    DALI_ASSERT_ALWAYS( (!mScrollViewImpl) && "Already attached to a ScrollView" );
  
    mScrollViewImpl = &GetImpl(scrollView);
  
    OnAttach(scrollView);
  }
  
  void ScrollViewEffect::Detach(Toolkit::ScrollView& scrollView)
  {
    DALI_ASSERT_ALWAYS( (mScrollViewImpl) && "Already detached from ScrollView" );
    DALI_ASSERT_ALWAYS( (&GetImpl(scrollView) == mScrollViewImpl) && "Effect attached to a different ScrollView");
  
    OnDetach(scrollView);
  
    mScrollViewImpl = NULL;
  }
  
  Toolkit::ScrollView ScrollViewEffect::GetScrollView()
  {
    DALI_ASSERT_ALWAYS(mScrollViewImpl);
  
    return DownCast<Toolkit::ScrollView>( mScrollViewImpl->Self() );
  }
  
  } // namespace Internal
  
  } // namespace Toolkit
  
  } // namespace Dali
  