/*
* Copyright (C) 2013 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.
*/
/* Copied from Launcher3 */
package com.android.wallpapercropper;
import android.app.ActionBar;
import android.app.Activity;
import android.app.WallpaperManager;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.res.Configuration;
import android.content.res.Resources;
import android.graphics.Bitmap;
import android.graphics.Bitmap.CompressFormat;
import android.graphics.BitmapFactory;
import android.graphics.BitmapRegionDecoder;
import android.graphics.Canvas;
import android.graphics.Matrix;
import android.graphics.Paint;
import android.graphics.Point;
import android.graphics.Rect;
import android.graphics.RectF;
import android.net.Uri;
import android.os.AsyncTask;
import android.os.Bundle;
import android.util.Log;
import android.view.Display;
import android.view.View;
import android.view.WindowManager;
import android.widget.Toast;
import com.android.gallery3d.common.Utils;
import com.android.gallery3d.exif.ExifInterface;
import com.android.photos.BitmapRegionTileSource;
import com.android.photos.BitmapRegionTileSource.BitmapSource;
import java.io.BufferedInputStream;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
public class WallpaperCropActivity extends Activity {
private static final String LOGTAG = "Launcher3.CropActivity";
protected static final String WALLPAPER_WIDTH_KEY = "wallpaper.width";
protected static final String WALLPAPER_HEIGHT_KEY = "wallpaper.height";
private static final int DEFAULT_COMPRESS_QUALITY = 90;
/**
* The maximum bitmap size we allow to be returned through the intent.
* Intents have a maximum of 1MB in total size. However, the Bitmap seems to
* have some overhead to hit so that we go way below the limit here to make
* sure the intent stays below 1MB.We should consider just returning a byte
* array instead of a Bitmap instance to avoid overhead.
*/
public static final int MAX_BMAP_IN_INTENT = 750000;
private static final float WALLPAPER_SCREENS_SPAN = 2f;
protected static Point sDefaultWallpaperSize;
protected CropView mCropView;
protected Uri mUri;
private View mSetWallpaperButton;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
init();
if (!enableRotation()) {
setRequestedOrientation(Configuration.ORIENTATION_PORTRAIT);
}
}
protected void init() {
setContentView(R.layout.wallpaper_cropper);
mCropView = (CropView) findViewById(R.id.cropView);
Intent cropIntent = getIntent();
final Uri imageUri = cropIntent.getData();
if (imageUri == null) {
Log.e(LOGTAG, "No URI passed in intent, exiting WallpaperCropActivity");
finish();
return;
}
// Action bar
// Show the custom action bar view
final ActionBar actionBar = getActionBar();
actionBar.setCustomView(R.layout.actionbar_set_wallpaper);
actionBar.getCustomView().setOnClickListener(
new View.OnClickListener() {
@Override
public void onClick(View v) {
boolean finishActivityWhenDone = true;
cropImageAndSetWallpaper(imageUri, null, finishActivityWhenDone);
}
});
mSetWallpaperButton = findViewById(R.id.set_wallpaper_button);
// Load image in background
final BitmapRegionTileSource.UriBitmapSource bitmapSource =
new BitmapRegionTileSource.UriBitmapSource(this, imageUri, 1024);
mSetWallpaperButton.setVisibility(View.INVISIBLE);
Runnable onLoad = new Runnable() {
public void run() {
if (bitmapSource.getLoadingState() != BitmapSource.State.LOADED) {
Toast.makeText(WallpaperCropActivity.this,
getString(R.string.wallpaper_load_fail),
Toast.LENGTH_LONG).show();
finish();
} else {
mSetWallpaperButton.setVisibility(View.VISIBLE);
}
}
};
setCropViewTileSource(bitmapSource, true, false, onLoad);
}
@Override
protected void onDestroy() {
if (mCropView != null) {
mCropView.destroy();
}
super.onDestroy();
}
public void setCropViewTileSource(
final BitmapRegionTileSource.BitmapSource bitmapSource, final boolean touchEnabled,
final boolean moveToLeft, final Runnable postExecute) {
final Context context = WallpaperCropActivity.this;
final View progressView = findViewById(R.id.loading);
final AsyncTask<Void, Void, Void> loadBitmapTask = new AsyncTask<Void, Void, Void>() {
protected Void doInBackground(Void...args) {
if (!isCancelled()) {
try {
bitmapSource.loadInBackground();
} catch (SecurityException securityException) {
if (isDestroyed()) {
// Temporarily granted permissions are revoked when the activity
// finishes, potentially resulting in a SecurityException here.
// Even though {@link #isDestroyed} might also return true in different
// situations where the configuration changes, we are fine with
// catching these cases here as well.
cancel(false);
} else {
// otherwise it had a different cause and we throw it further
throw securityException;
}
}
}
return null;
}
protected void onPostExecute(Void arg) {
if (!isCancelled()) {
progressView.setVisibility(View.INVISIBLE);
if (bitmapSource.getLoadingState() == BitmapSource.State.LOADED) {
mCropView.setTileSource(
new BitmapRegionTileSource(context, bitmapSource), null);
mCropView.setTouchEnabled(touchEnabled);
if (moveToLeft) {
mCropView.moveToLeft();
}
}
}
if (postExecute != null) {
postExecute.run();
}
}
};
// We don't want to show the spinner every time we load an image, because that would be
// annoying; instead, only start showing the spinner if loading the image has taken
// longer than 1 sec (ie 1000 ms)
progressView.postDelayed(new Runnable() {
public void run() {
if (loadBitmapTask.getStatus() != AsyncTask.Status.FINISHED) {
progressView.setVisibility(View.VISIBLE);
}
}
}, 1000);
loadBitmapTask.execute();
}
public boolean enableRotation() {
return getResources().getBoolean(R.bool.allow_rotation);
}
public static String getSharedPreferencesKey() {
return WallpaperCropActivity.class.getName();
}
// As a ratio of screen height, the total distance we want the parallax effect to span
// horizontally
private static float wallpaperTravelToScreenWidthRatio(int width, int height) {
float aspectRatio = width / (float) height;
// At an aspect ratio of 16/10, the wallpaper parallax effect should span 1.5 * screen width
// At an aspect ratio of 10/16, the wallpaper parallax effect should span 1.2 * screen width
// We will use these two data points to extrapolate how much the wallpaper parallax effect
// to span (ie travel) at any aspect ratio:
final float ASPECT_RATIO_LANDSCAPE = 16/10f;
final float ASPECT_RATIO_PORTRAIT = 10/16f;
final float WALLPAPER_WIDTH_TO_SCREEN_RATIO_LANDSCAPE = 1.5f;
final float WALLPAPER_WIDTH_TO_SCREEN_RATIO_PORTRAIT = 1.2f;
// To find out the desired width at different aspect ratios, we use the following two
// formulas, where the coefficient on x is the aspect ratio (width/height):
// (16/10)x + y = 1.5
// (10/16)x + y = 1.2
// We solve for x and y and end up with a final formula:
final float x =
(WALLPAPER_WIDTH_TO_SCREEN_RATIO_LANDSCAPE - WALLPAPER_WIDTH_TO_SCREEN_RATIO_PORTRAIT) /
(ASPECT_RATIO_LANDSCAPE - ASPECT_RATIO_PORTRAIT);
final float y = WALLPAPER_WIDTH_TO_SCREEN_RATIO_PORTRAIT - x * ASPECT_RATIO_PORTRAIT;
return x * aspectRatio + y;
}
static protected Point getDefaultWallpaperSize(Resources res, WindowManager windowManager) {
if (sDefaultWallpaperSize == null) {
Point minDims = new Point();
Point maxDims = new Point();
windowManager.getDefaultDisplay().getCurrentSizeRange(minDims, maxDims);
int maxDim = Math.max(maxDims.x, maxDims.y);
int minDim = Math.max(minDims.x, minDims.y);
if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.JELLY_BEAN_MR1) {
Point realSize = new Point();
windowManager.getDefaultDisplay().getRealSize(realSize);
maxDim = Math.max(realSize.x, realSize.y);
minDim = Math.min(realSize.x, realSize.y);
}
// We need to ensure that there is enough extra space in the wallpaper
// for the intended parallax effects
final int defaultWidth, defaultHeight;
if (isScreenLarge(res)) {
defaultWidth = (int) (maxDim * wallpaperTravelToScreenWidthRatio(maxDim, minDim));
defaultHeight = maxDim;
} else {
defaultWidth = Math.max((int) (minDim * WALLPAPER_SCREENS_SPAN), maxDim);
defaultHeight = maxDim;
}
sDefaultWallpaperSize = new Point(defaultWidth, defaultHeight);
}
return sDefaultWallpaperSize;
}
public static int getRotationFromExif(String path) {
return getRotationFromExifHelper(path, null, 0, null, null);
}
public static int getRotationFromExif(Context context, Uri uri) {
return getRotationFromExifHelper(null, null, 0, context, uri);
}
public static int getRotationFromExif(Resources res, int resId) {
return getRotationFromExifHelper(null, res, resId, null, null);
}
private static int getRotationFromExifHelper(
String path, Resources res, int resId, Context context, Uri uri) {
ExifInterface ei = new ExifInterface();
InputStream is = null;
BufferedInputStream bis = null;
try {
if (path != null) {
ei.readExif(path);
} else if (uri != null) {
is = context.getContentResolver().openInputStream(uri);
bis = new BufferedInputStream(is);
ei.readExif(bis);
} else {
is = res.openRawResource(resId);
bis = new BufferedInputStream(is);
ei.readExif(bis);
}
Integer ori = ei.getTagIntValue(ExifInterface.TAG_ORIENTATION);
if (ori != null) {
return ExifInterface.getRotationForOrientationValue(ori.shortValue());
}
} catch (IOException e) {
Log.w(LOGTAG, "Getting exif data failed", e);
} catch (NullPointerException e) {
// Sometimes the ExifInterface has an internal NPE if Exif data isn't valid
Log.w(LOGTAG, "Getting exif data failed", e);
} finally {
Utils.closeSilently(bis);
Utils.closeSilently(is);
}
return 0;
}
protected void setWallpaper(String filePath, final boolean finishActivityWhenDone) {
int rotation = getRotationFromExif(filePath);
BitmapCropTask cropTask = new BitmapCropTask(
this, filePath, null, rotation, 0, 0, true, false, null);
final Point bounds = cropTask.getImageBounds();
Runnable onEndCrop = new Runnable() {
public void run() {
if (finishActivityWhenDone) {
setResult(Activity.RESULT_OK);
finish();
}
}
};
cropTask.setOnEndRunnable(onEndCrop);
cropTask.setNoCrop(true);
cropTask.execute();
}
protected void cropImageAndSetWallpaper(
Resources res, int resId, final boolean finishActivityWhenDone) {
// crop this image and scale it down to the default wallpaper size for
// this device
int rotation = getRotationFromExif(res, resId);
Point inSize = mCropView.getSourceDimensions();
Point outSize = getDefaultWallpaperSize(getResources(),
getWindowManager());
RectF crop = getMaxCropRect(
inSize.x, inSize.y, outSize.x, outSize.y, false);
Runnable onEndCrop = new Runnable() {
public void run() {
if (finishActivityWhenDone) {
setResult(Activity.RESULT_OK);
finish();
}
}
};
BitmapCropTask cropTask = new BitmapCropTask(this, res, resId,
crop, rotation, outSize.x, outSize.y, true, false, onEndCrop);
cropTask.execute();
}
private static boolean isScreenLarge(Resources res) {
Configuration config = res.getConfiguration();
return config.smallestScreenWidthDp >= 720;
}
protected void cropImageAndSetWallpaper(Uri uri,
OnBitmapCroppedHandler onBitmapCroppedHandler, final boolean finishActivityWhenDone) {
boolean centerCrop = getResources().getBoolean(R.bool.center_crop);
// Get the crop
boolean ltr = mCropView.getLayoutDirection() == View.LAYOUT_DIRECTION_LTR;
Display d = getWindowManager().getDefaultDisplay();
Point displaySize = new Point();
d.getSize(displaySize);
boolean isPortrait = displaySize.x < displaySize.y;
Point defaultWallpaperSize = getDefaultWallpaperSize(getResources(),
getWindowManager());
// Get the crop
RectF cropRect = mCropView.getCrop();
Point inSize = mCropView.getSourceDimensions();
int cropRotation = mCropView.getImageRotation();
float cropScale = mCropView.getWidth() / (float) cropRect.width();
Matrix rotateMatrix = new Matrix();
rotateMatrix.setRotate(cropRotation);
float[] rotatedInSize = new float[] { inSize.x, inSize.y };
rotateMatrix.mapPoints(rotatedInSize);
rotatedInSize[0] = Math.abs(rotatedInSize[0]);
rotatedInSize[1] = Math.abs(rotatedInSize[1]);
// Due to rounding errors in the cropview renderer the edges can be slightly offset
// therefore we ensure that the boundaries are sanely defined
cropRect.left = Math.max(0, cropRect.left);
cropRect.right = Math.min(rotatedInSize[0], cropRect.right);
cropRect.top = Math.max(0, cropRect.top);
cropRect.bottom = Math.min(rotatedInSize[1], cropRect.bottom);
// ADJUST CROP WIDTH
// Extend the crop all the way to the right, for parallax
// (or all the way to the left, in RTL)
float extraSpace;
if (centerCrop) {
extraSpace = 2f * Math.min(rotatedInSize[0] - cropRect.right, cropRect.left);
} else {
extraSpace = ltr ? rotatedInSize[0] - cropRect.right : cropRect.left;
}
// Cap the amount of extra width
float maxExtraSpace = defaultWallpaperSize.x / cropScale - cropRect.width();
extraSpace = Math.min(extraSpace, maxExtraSpace);
if (centerCrop) {
cropRect.left -= extraSpace / 2f;
cropRect.right += extraSpace / 2f;
} else {
if (ltr) {
cropRect.right += extraSpace;
} else {
cropRect.left -= extraSpace;
}
}
// ADJUST CROP HEIGHT
if (isPortrait) {
cropRect.bottom = cropRect.top + defaultWallpaperSize.y / cropScale;
} else { // LANDSCAPE
float extraPortraitHeight =
defaultWallpaperSize.y / cropScale - cropRect.height();
float expandHeight =
Math.min(Math.min(rotatedInSize[1] - cropRect.bottom, cropRect.top),
extraPortraitHeight / 2);
cropRect.top -= expandHeight;
cropRect.bottom += expandHeight;
}
final int outWidth = (int) Math.round(cropRect.width() * cropScale);
final int outHeight = (int) Math.round(cropRect.height() * cropScale);
Runnable onEndCrop = new Runnable() {
public void run() {
if (finishActivityWhenDone) {
setResult(Activity.RESULT_OK);
finish();
}
}
};
BitmapCropTask cropTask = new BitmapCropTask(this, uri,
cropRect, cropRotation, outWidth, outHeight, true, false, onEndCrop);
if (onBitmapCroppedHandler != null) {
cropTask.setOnBitmapCropped(onBitmapCroppedHandler);
}
cropTask.execute();
}
public interface OnBitmapCroppedHandler {
public void onBitmapCropped(byte[] imageBytes);
}
protected static class BitmapCropTask extends AsyncTask<Void, Void, Boolean> {
Uri mInUri = null;
Context mContext;
String mInFilePath;
byte[] mInImageBytes;
int mInResId = 0;
RectF mCropBounds = null;
int mOutWidth, mOutHeight;
int mRotation;
String mOutputFormat = "jpg"; // for now
boolean mSetWallpaper;
boolean mSaveCroppedBitmap;
Bitmap mCroppedBitmap;
Runnable mOnEndRunnable;
Resources mResources;
OnBitmapCroppedHandler mOnBitmapCroppedHandler;
boolean mNoCrop;
public BitmapCropTask(Context c, String filePath,
RectF cropBounds, int rotation, int outWidth, int outHeight,
boolean setWallpaper, boolean saveCroppedBitmap, Runnable onEndRunnable) {
mContext = c;
mInFilePath = filePath;
init(cropBounds, rotation,
outWidth, outHeight, setWallpaper, saveCroppedBitmap, onEndRunnable);
}
public BitmapCropTask(byte[] imageBytes,
RectF cropBounds, int rotation, int outWidth, int outHeight,
boolean setWallpaper, boolean saveCroppedBitmap, Runnable onEndRunnable) {
mInImageBytes = imageBytes;
init(cropBounds, rotation,
outWidth, outHeight, setWallpaper, saveCroppedBitmap, onEndRunnable);
}
public BitmapCropTask(Context c, Uri inUri,
RectF cropBounds, int rotation, int outWidth, int outHeight,
boolean setWallpaper, boolean saveCroppedBitmap, Runnable onEndRunnable) {
mContext = c;
mInUri = inUri;
init(cropBounds, rotation,
outWidth, outHeight, setWallpaper, saveCroppedBitmap, onEndRunnable);
}
public BitmapCropTask(Context c, Resources res, int inResId,
RectF cropBounds, int rotation, int outWidth, int outHeight,
boolean setWallpaper, boolean saveCroppedBitmap, Runnable onEndRunnable) {
mContext = c;
mInResId = inResId;
mResources = res;
init(cropBounds, rotation,
outWidth, outHeight, setWallpaper, saveCroppedBitmap, onEndRunnable);
}
private void init(RectF cropBounds, int rotation, int outWidth, int outHeight,
boolean setWallpaper, boolean saveCroppedBitmap, Runnable onEndRunnable) {
mCropBounds = cropBounds;
mRotation = rotation;
mOutWidth = outWidth;
mOutHeight = outHeight;
mSetWallpaper = setWallpaper;
mSaveCroppedBitmap = saveCroppedBitmap;
mOnEndRunnable = onEndRunnable;
}
public void setOnBitmapCropped(OnBitmapCroppedHandler handler) {
mOnBitmapCroppedHandler = handler;
}
public void setNoCrop(boolean value) {
mNoCrop = value;
}
public void setOnEndRunnable(Runnable onEndRunnable) {
mOnEndRunnable = onEndRunnable;
}
// Helper to setup input stream
private InputStream regenerateInputStream() {
if (mInUri == null && mInResId == 0 && mInFilePath == null && mInImageBytes == null) {
Log.w(LOGTAG, "cannot read original file, no input URI, resource ID, or " +
"image byte array given");
} else {
try {
if (mInUri != null) {
return new BufferedInputStream(
mContext.getContentResolver().openInputStream(mInUri));
} else if (mInFilePath != null) {
return mContext.openFileInput(mInFilePath);
} else if (mInImageBytes != null) {
return new BufferedInputStream(new ByteArrayInputStream(mInImageBytes));
} else {
return new BufferedInputStream(mResources.openRawResource(mInResId));
}
} catch (FileNotFoundException e) {
Log.w(LOGTAG, "cannot read file: " + mInUri.toString(), e);
}
}
return null;
}
public Point getImageBounds() {
InputStream is = regenerateInputStream();
if (is != null) {
BitmapFactory.Options options = new BitmapFactory.Options();
options.inJustDecodeBounds = true;
BitmapFactory.decodeStream(is, null, options);
Utils.closeSilently(is);
if (options.outWidth != 0 && options.outHeight != 0) {
return new Point(options.outWidth, options.outHeight);
}
}
return null;
}
public void setCropBounds(RectF cropBounds) {
mCropBounds = cropBounds;
}
public Bitmap getCroppedBitmap() {
return mCroppedBitmap;
}
public boolean cropBitmap() {
boolean failure = false;
WallpaperManager wallpaperManager = null;
if (mSetWallpaper) {
wallpaperManager = WallpaperManager.getInstance(mContext.getApplicationContext());
}
if (mSetWallpaper && mNoCrop) {
try {
InputStream is = regenerateInputStream();
if (is != null) {
wallpaperManager.setStream(is);
Utils.closeSilently(is);
}
} catch (IOException e) {
Log.w(LOGTAG, "cannot write stream to wallpaper", e);
failure = true;
}
return !failure;
} else {
// Find crop bounds (scaled to original image size)
Rect roundedTrueCrop = new Rect();
Matrix rotateMatrix = new Matrix();
Matrix inverseRotateMatrix = new Matrix();
Point bounds = getImageBounds();
if (mRotation > 0) {
rotateMatrix.setRotate(mRotation);
inverseRotateMatrix.setRotate(-mRotation);
mCropBounds.roundOut(roundedTrueCrop);
mCropBounds = new RectF(roundedTrueCrop);
if (bounds == null) {
Log.w(LOGTAG, "cannot get bounds for image");
failure = true;
return false;
}
float[] rotatedBounds = new float[] { bounds.x, bounds.y };
rotateMatrix.mapPoints(rotatedBounds);
rotatedBounds[0] = Math.abs(rotatedBounds[0]);
rotatedBounds[1] = Math.abs(rotatedBounds[1]);
mCropBounds.offset(-rotatedBounds[0]/2, -rotatedBounds[1]/2);
inverseRotateMatrix.mapRect(mCropBounds);
mCropBounds.offset(bounds.x/2, bounds.y/2);
}
mCropBounds.roundOut(roundedTrueCrop);
if (roundedTrueCrop.width() <= 0 || roundedTrueCrop.height() <= 0) {
Log.w(LOGTAG, "crop has bad values for full size image");
failure = true;
return false;
}
// See how much we're reducing the size of the image
int scaleDownSampleSize = Math.max(1, Math.min(roundedTrueCrop.width() / mOutWidth,
roundedTrueCrop.height() / mOutHeight));
// Attempt to open a region decoder
BitmapRegionDecoder decoder = null;
InputStream is = null;
try {
is = regenerateInputStream();
if (is == null) {
Log.w(LOGTAG, "cannot get input stream for uri=" + mInUri.toString());
failure = true;
return false;
}
decoder = BitmapRegionDecoder.newInstance(is, false);
Utils.closeSilently(is);
} catch (IOException e) {
Log.w(LOGTAG, "cannot open region decoder for file: " + mInUri.toString(), e);
} finally {
Utils.closeSilently(is);
is = null;
}
Bitmap crop = null;
if (decoder != null) {
// Do region decoding to get crop bitmap
BitmapFactory.Options options = new BitmapFactory.Options();
if (scaleDownSampleSize > 1) {
options.inSampleSize = scaleDownSampleSize;
}
crop = decoder.decodeRegion(roundedTrueCrop, options);
decoder.recycle();
}
if (crop == null) {
// BitmapRegionDecoder has failed, try to crop in-memory
is = regenerateInputStream();
Bitmap fullSize = null;
if (is != null) {
BitmapFactory.Options options = new BitmapFactory.Options();
if (scaleDownSampleSize > 1) {
options.inSampleSize = scaleDownSampleSize;
}
fullSize = BitmapFactory.decodeStream(is, null, options);
Utils.closeSilently(is);
}
if (fullSize != null) {
// Find out the true sample size that was used by the decoder
scaleDownSampleSize = bounds.x / fullSize.getWidth();
mCropBounds.left /= scaleDownSampleSize;
mCropBounds.top /= scaleDownSampleSize;
mCropBounds.bottom /= scaleDownSampleSize;
mCropBounds.right /= scaleDownSampleSize;
mCropBounds.roundOut(roundedTrueCrop);
// Adjust values to account for issues related to rounding
if (roundedTrueCrop.width() > fullSize.getWidth()) {
// Adjust the width
roundedTrueCrop.right = roundedTrueCrop.left + fullSize.getWidth();
}
if (roundedTrueCrop.right > fullSize.getWidth()) {
// Adjust the left value
int adjustment = roundedTrueCrop.left -
Math.max(0, roundedTrueCrop.right - roundedTrueCrop.width());
roundedTrueCrop.left -= adjustment;
roundedTrueCrop.right -= adjustment;
}
if (roundedTrueCrop.height() > fullSize.getHeight()) {
// Adjust the height
roundedTrueCrop.bottom = roundedTrueCrop.top + fullSize.getHeight();
}
if (roundedTrueCrop.bottom > fullSize.getHeight()) {
// Adjust the top value
int adjustment = roundedTrueCrop.top -
Math.max(0, roundedTrueCrop.bottom - roundedTrueCrop.height());
roundedTrueCrop.top -= adjustment;
roundedTrueCrop.bottom -= adjustment;
}
crop = Bitmap.createBitmap(fullSize, roundedTrueCrop.left,
roundedTrueCrop.top, roundedTrueCrop.width(),
roundedTrueCrop.height());
}
}
if (crop == null) {
Log.w(LOGTAG, "cannot decode file: " + mInUri.toString());
failure = true;
return false;
}
if (mOutWidth > 0 && mOutHeight > 0 || mRotation > 0) {
float[] dimsAfter = new float[] { crop.getWidth(), crop.getHeight() };
rotateMatrix.mapPoints(dimsAfter);
dimsAfter[0] = Math.abs(dimsAfter[0]);
dimsAfter[1] = Math.abs(dimsAfter[1]);
if (!(mOutWidth > 0 && mOutHeight > 0)) {
mOutWidth = Math.round(dimsAfter[0]);
mOutHeight = Math.round(dimsAfter[1]);
}
RectF cropRect = new RectF(0, 0, dimsAfter[0], dimsAfter[1]);
RectF returnRect = new RectF(0, 0, mOutWidth, mOutHeight);
Matrix m = new Matrix();
if (mRotation == 0) {
m.setRectToRect(cropRect, returnRect, Matrix.ScaleToFit.FILL);
} else {
Matrix m1 = new Matrix();
m1.setTranslate(-crop.getWidth() / 2f, -crop.getHeight() / 2f);
Matrix m2 = new Matrix();
m2.setRotate(mRotation);
Matrix m3 = new Matrix();
m3.setTranslate(dimsAfter[0] / 2f, dimsAfter[1] / 2f);
Matrix m4 = new Matrix();
m4.setRectToRect(cropRect, returnRect, Matrix.ScaleToFit.FILL);
Matrix c1 = new Matrix();
c1.setConcat(m2, m1);
Matrix c2 = new Matrix();
c2.setConcat(m4, m3);
m.setConcat(c2, c1);
}
Bitmap tmp = Bitmap.createBitmap((int) returnRect.width(),
(int) returnRect.height(), Bitmap.Config.ARGB_8888);
if (tmp != null) {
Canvas c = new Canvas(tmp);
Paint p = new Paint();
p.setFilterBitmap(true);
c.drawBitmap(crop, m, p);
crop = tmp;
}
}
if (mSaveCroppedBitmap) {
mCroppedBitmap = crop;
}
// Get output compression format
CompressFormat cf =
convertExtensionToCompressFormat(getFileExtension(mOutputFormat));
// Compress to byte array
ByteArrayOutputStream tmpOut = new ByteArrayOutputStream(2048);
if (crop.compress(cf, DEFAULT_COMPRESS_QUALITY, tmpOut)) {
// If we need to set to the wallpaper, set it
if (mSetWallpaper && wallpaperManager != null) {
try {
byte[] outByteArray = tmpOut.toByteArray();
wallpaperManager.setStream(new ByteArrayInputStream(outByteArray));
if (mOnBitmapCroppedHandler != null) {
mOnBitmapCroppedHandler.onBitmapCropped(outByteArray);
}
} catch (IOException e) {
Log.w(LOGTAG, "cannot write stream to wallpaper", e);
failure = true;
}
}
} else {
Log.w(LOGTAG, "cannot compress bitmap");
failure = true;
}
}
return !failure; // True if any of the operations failed
}
@Override
protected Boolean doInBackground(Void... params) {
return cropBitmap();
}
@Override
protected void onPostExecute(Boolean result) {
if (mOnEndRunnable != null) {
mOnEndRunnable.run();
}
}
}
protected static RectF getMaxCropRect(
int inWidth, int inHeight, int outWidth, int outHeight, boolean leftAligned) {
RectF cropRect = new RectF();
// Get a crop rect that will fit this
if (inWidth / (float) inHeight > outWidth / (float) outHeight) {
cropRect.top = 0;
cropRect.bottom = inHeight;
cropRect.left = (inWidth - (outWidth / (float) outHeight) * inHeight) / 2;
cropRect.right = inWidth - cropRect.left;
if (leftAligned) {
cropRect.right -= cropRect.left;
cropRect.left = 0;
}
} else {
cropRect.left = 0;
cropRect.right = inWidth;
cropRect.top = (inHeight - (outHeight / (float) outWidth) * inWidth) / 2;
cropRect.bottom = inHeight - cropRect.top;
}
return cropRect;
}
protected static CompressFormat convertExtensionToCompressFormat(String extension) {
return extension.equals("png") ? CompressFormat.PNG : CompressFormat.JPEG;
}
protected static String getFileExtension(String requestFormat) {
String outputFormat = (requestFormat == null)
? "jpg"
: requestFormat;
outputFormat = outputFormat.toLowerCase();
return (outputFormat.equals("png") || outputFormat.equals("gif"))
? "png" // We don't support gif compression.
: "jpg";
}
}
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