content: /*
   * Copyright (C) 2007 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 com.onegravity.rteditor.media.crop;
  
  import android.graphics.Bitmap;
  import android.graphics.Matrix;
  
  public class RotateBitmap {
  
      public static final String TAG = "RotateBitmap";
      private Bitmap mBitmap;
      private int mRotation;
  
      public RotateBitmap(Bitmap bitmap) {
  
          mBitmap = bitmap;
          mRotation = 0;
      }
  
      public RotateBitmap(Bitmap bitmap, int rotation) {
  
          mBitmap = bitmap;
          mRotation = rotation % 360;
      }
  
      public void setRotation(int rotation) {
  
          mRotation = rotation;
      }
  
      public int getRotation() {
  
          return mRotation;
      }
  
      public Bitmap getBitmap() {
  
          return mBitmap;
      }
  
      public void setBitmap(Bitmap bitmap) {
  
          mBitmap = bitmap;
      }
  
      public Matrix getRotateMatrix() {
          // By default this is an identity matrix.
          Matrix matrix = new Matrix();
          if (mRotation != 0) {
              // We want to do the rotation at origin, but since the bounding
              // rectangle will be changed after rotation, so the delta values
              // are based on old & new width/height respectively.
              int cx = mBitmap.getWidth() / 2;
              int cy = mBitmap.getHeight() / 2;
              matrix.preTranslate(-cx, -cy);
              matrix.postRotate(mRotation);
              matrix.postTranslate(getWidth() / 2, getHeight() / 2);
          }
          return matrix;
      }
  
      public boolean isOrientationChanged() {
  
          return (mRotation / 90) % 2 != 0;
      }
  
      public int getHeight() {
  
          if (isOrientationChanged()) {
              return mBitmap.getWidth();
          } else {
              return mBitmap.getHeight();
          }
      }
  
      public int getWidth() {
  
          if (isOrientationChanged()) {
              return mBitmap.getHeight();
          } else {
              return mBitmap.getWidth();
          }
      }
  
      public void recycle() {
  
          if (mBitmap != null) {
              mBitmap.recycle();
              mBitmap = null;
          }
      }
  }