content: /*
   * Created on Oct 21, 2008
   * 
   * 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.
   * 
   * Copyright @2008-2013 the original author or authors.
   */
  package org.fest.swing.driver;
  
  import static org.fest.util.Preconditions.checkNotNull;
  
  import java.awt.Container;
  import java.awt.Point;
  import java.awt.Rectangle;
  
  import javax.annotation.Nonnull;
  import javax.swing.CellRendererPane;
  import javax.swing.JComponent;
  import javax.swing.JTextField;
  
  import org.fest.swing.annotation.RunsInCurrentThread;
  import org.fest.swing.util.Pair;
  
  /**
   * <p>
   * Returns the point and parent to use as a reference when scrolling a {@code JTextField} up or down.
   * </p>
   * 
   * <p>
   * <b>Note:</b> Methods in this class are accessed in the current executing thread. Such thread may or may not be the
   * event dispatch thread (EDT.) Client code must call methods in this class from the EDT.
   * </p>
   * 
   * @author Alex Ruiz
   * @author Yvonne Wang
   */
  final class PointAndParentForScrollingJTextFieldQuery {
    @RunsInCurrentThread
    static @Nonnull Pair<Point, Container> pointAndParentForScrolling(final @Nonnull JTextField textField) {
      Point origin = new Point(textField.getX(), textField.getY());
      Container parent = textField.getParent();
      while (parent != null && !(parent instanceof JComponent) && !(parent instanceof CellRendererPane)) {
        origin = addRectangleToPoint(checkNotNull(parent.getBounds()), origin);
        parent = parent.getParent();
      }
      return Pair.of(origin, parent);
    }
  
    private static @Nonnull Point addRectangleToPoint(@Nonnull Rectangle r, @Nonnull Point p) {
      Point newPoint = new Point(p);
      newPoint.x += r.x;
      newPoint.y += r.y;
      return newPoint;
    }
  
    private PointAndParentForScrollingJTextFieldQuery() {}
  }
  