content: /*
   * Copyright (C) 2008-2009 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 android.gesture;
  
  import android.graphics.Matrix;
  import android.graphics.Path;
  
  /**
   * An oriented bounding box
   */
  public class OrientedBoundingBox {
      public final float squareness;
  
      public final float width;
      public final float height;
  
      public final float orientation; 
  
      public final float centerX;
      public final float centerY;
  
      OrientedBoundingBox(float angle, float cx, float cy, float w, float h) {
          orientation = angle;
          width = w;
          height = h;
          centerX = cx;
          centerY = cy;
          float ratio = w / h;
          if (ratio > 1) {
              squareness = 1 / ratio;
          } else {
              squareness = ratio;
          }
      }
  
      /**
       * Currently used for debugging purpose only.
       *
       * @hide
       */
      public Path toPath() {
          Path path = new Path();
          float[] point = new float[2];
          point[0] = -width / 2;
          point[1] = height / 2;
          Matrix matrix = new Matrix();
          matrix.setRotate(orientation);
          matrix.postTranslate(centerX, centerY);
          matrix.mapPoints(point);
          path.moveTo(point[0], point[1]);
  
          point[0] = -width / 2;
          point[1] = -height / 2;
          matrix.mapPoints(point);
          path.lineTo(point[0], point[1]);
  
          point[0] = width / 2;
          point[1] = -height / 2;
          matrix.mapPoints(point);
          path.lineTo(point[0], point[1]);
  
          point[0] = width / 2;
          point[1] = height / 2;
          matrix.mapPoints(point);
          path.lineTo(point[0], point[1]);
  
          path.close();
  
          return path;
      }
  }
  