Android Bitmap Rotate rotateAndMirror(Bitmap b, int degrees, boolean mirror)

Description

rotate And Mirror

License

Apache License

Declaration

public static Bitmap rotateAndMirror(Bitmap b, int degrees,
            boolean mirror) 

Method Source Code

/*/* www .  j a  va2  s  .  c  o m*/
 * Copyright (C) 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.
 */

import android.app.Activity;
import android.app.AlertDialog;
import android.app.admin.DevicePolicyManager;
import android.content.ActivityNotFoundException;
import android.content.ComponentName;
import android.content.ContentResolver;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Matrix;
import android.graphics.Point;
import android.graphics.Rect;
import android.graphics.RectF;
import android.hardware.Camera;
import android.hardware.Camera.CameraInfo;
import android.hardware.Camera.Parameters;
import android.hardware.Camera.Size;
import android.location.Location;
import android.net.Uri;
import android.os.Handler;
import android.os.ParcelFileDescriptor;
import android.telephony.TelephonyManager;
import android.util.DisplayMetrics;
import android.util.Log;
import android.util.TypedValue;
import android.view.Display;
import android.view.OrientationEventListener;
import android.view.Surface;
import android.view.View;
import android.view.WindowManager;
import android.view.animation.AlphaAnimation;
import android.view.animation.Animation;
import android.widget.Toast;
import com.android.camera.CameraActivity;
import com.android.camera.CameraDisabledException;
import com.android.camera.CameraHolder;
import com.android.camera.CameraManager;
import com.android.camera.util.IntentHelper;
import com.android.camera2.R;
import java.io.Closeable;
import java.io.IOException;
import java.lang.reflect.Method;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.List;
import java.util.Locale;
import java.util.StringTokenizer;

public class Main{
    public static Bitmap rotateAndMirror(Bitmap b, int degrees,
            boolean mirror) {
        if ((degrees != 0 || mirror) && b != null) {
            Matrix m = new Matrix();
            // Mirror first.
            // horizontal flip + rotation = -rotation + horizontal flip
            if (mirror) {
                m.postScale(-1, 1);
                degrees = (degrees + 360) % 360;
                if (degrees == 0 || degrees == 180) {
                    m.postTranslate(b.getWidth(), 0);
                } else if (degrees == 90 || degrees == 270) {
                    m.postTranslate(b.getHeight(), 0);
                } else {
                    throw new IllegalArgumentException("Invalid degrees="
                            + degrees);
                }
            }
            if (degrees != 0) {
                // clockwise
                m.postRotate(degrees, (float) b.getWidth() / 2,
                        (float) b.getHeight() / 2);
            }

            try {
                Bitmap b2 = Bitmap.createBitmap(b, 0, 0, b.getWidth(),
                        b.getHeight(), m, true);
                if (b != b2) {
                    b.recycle();
                    b = b2;
                }
            } catch (OutOfMemoryError ex) {
                // We have no memory to rotate. Return the original bitmap.
            }
        }
        return b;
    }
}

Related

1. fixBitmapOrientation(Uri uri, Bitmap bmp)
2. rotate(Bitmap b, int degrees)
3. rotate(Bitmap bitmap, int degree)
4. rotateBitmap(Bitmap b, int degrees)
5. rotateBitmap(Bitmap source, float angle)
6. rotateBitmap(Bitmap source, int rotation, boolean recycle)
7. rotatePic(Bitmap bitmap, int degree)