content: /*
   * Copyright (C) 2015 The Android Open Source Project
   *
   * 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.
   */
  
  package dev.dworks.apps.anexplorer.misc;
  
  import android.graphics.Rect;
  import android.os.Build;
  import android.view.View;
  import android.view.ViewGroup;
  
  class ViewGroupUtils {
  
      private interface ViewGroupUtilsImpl {
          void offsetDescendantRect(ViewGroup parent, View child, Rect rect);
      }
  
      private static class ViewGroupUtilsImplBase implements ViewGroupUtilsImpl {
          @Override
          public void offsetDescendantRect(ViewGroup parent, View child, Rect rect) {
              parent.offsetDescendantRectToMyCoords(child, rect);
          }
      }
  
      private static class ViewGroupUtilsImplHoneycomb implements ViewGroupUtilsImpl {
          @Override
          public void offsetDescendantRect(ViewGroup parent, View child, Rect rect) {
              ViewGroupUtilsHoneycomb.offsetDescendantRect(parent, child, rect);
          }
      }
  
      private static final ViewGroupUtilsImpl IMPL;
  
      static {
          final int version = Build.VERSION.SDK_INT;
          if (version >= 11) {
              IMPL = new ViewGroupUtilsImplHoneycomb();
          } else {
              IMPL = new ViewGroupUtilsImplBase();
          }
      }
  
      /**
       * This is a port of the common
       * {@link ViewGroup#offsetDescendantRectToMyCoords(View, Rect)}
       * from the framework, but adapted to take transformations into account. The result
       * will be the bounding rect of the real transformed rect.
       *
       * @param descendant view defining the original coordinate system of rect
       * @param rect (in/out) the rect to offset from descendant to this view's coordinate system
       */
      static void offsetDescendantRect(ViewGroup parent, View descendant, Rect rect) {
          IMPL.offsetDescendantRect(parent, descendant, rect);
      }
  
      /**
       * Retrieve the transformed bounding rect of an arbitrary descendant view.
       * This does not need to be a direct child.
       *
       * @param descendant descendant view to reference
       * @param out rect to set to the bounds of the descendant view
       */
      static void getDescendantRect(ViewGroup parent, View descendant, Rect out) {
          out.set(0, 0, descendant.getWidth(), descendant.getHeight());
          offsetDescendantRect(parent, descendant, out);
      }
  
  }
  