/*
* 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.lovejjfg.blogdemo.utils.crop;
import android.annotation.TargetApi;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.BitmapRegionDecoder;
import android.graphics.Canvas;
import android.graphics.Matrix;
import android.graphics.Rect;
import android.graphics.RectF;
import android.net.Uri;
import android.opengl.GLES10;
import android.os.Build;
import android.os.Bundle;
import android.os.Handler;
import android.provider.MediaStore;
import android.view.View;
import android.view.Window;
import com.lovejjfg.blogdemo.R;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.concurrent.CountDownLatch;
/*
* Modified from original in AOSP.
*/
public class CropImageActivity extends MonitoredActivity {
private static final boolean IN_MEMORY_CROP = Build.VERSION.SDK_INT < Build.VERSION_CODES.GINGERBREAD_MR1;
private static final int SIZE_DEFAULT = 1024;
private static final int SIZE_LIMIT = 1024;
private final Handler handler = new Handler();
private int aspectX;
private int aspectY;
// Output image size
private int maxX;
private int maxY;
private int exifRotation;
private Uri sourceUri;
private Uri saveUri;
private boolean isSaving;
private int sampleSize;
private RotateBitmap rotateBitmap;
private CropImageView imageView;
private HighlightView cropView;
@Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.activity_crop);
initViews();
setupFromIntent();
if (rotateBitmap == null) {
finish();
return;
}
startCrop();
}
private void initViews() {
imageView = (CropImageView) findViewById(R.id.crop_image);
imageView.context = this;
imageView.setRecycler(new ImageViewTouchBase.Recycler() {
@Override
public void recycle(Bitmap b) {
b.recycle();
System.gc();
}
});
findViewById(R.id.btn_cancel).setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
setResult(RESULT_CANCELED);
finish();
}
});
findViewById(R.id.btn_done).setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
onSaveClicked();
}
});
}
private void setupFromIntent() {
Intent intent = getIntent();
Bundle extras = intent.getExtras();
if (extras != null) {
aspectX = extras.getInt(Crop.Extra.ASPECT_X);
aspectY = extras.getInt(Crop.Extra.ASPECT_Y);
maxX = extras.getInt(Crop.Extra.MAX_X);
maxY = extras.getInt(Crop.Extra.MAX_Y);
saveUri = extras.getParcelable(MediaStore.EXTRA_OUTPUT);
}
sourceUri = intent.getData();
if (sourceUri != null) {
exifRotation = CropUtil.getExifRotation(CropUtil.getFromMediaUri(getContentResolver(), sourceUri));
InputStream is = null;
try {
sampleSize = calculateBitmapSampleSize(sourceUri);
is = getContentResolver().openInputStream(sourceUri);
BitmapFactory.Options option = new BitmapFactory.Options();
option.inSampleSize = sampleSize;
rotateBitmap = new RotateBitmap(BitmapFactory.decodeStream(is, null, option), exifRotation);
} catch (IOException e) {
setResultException(e);
} catch (OutOfMemoryError e) {
setResultException(e);
} finally {
CropUtil.closeSilently(is);
}
}
}
private int calculateBitmapSampleSize(Uri bitmapUri) throws IOException {
InputStream is = null;
BitmapFactory.Options options = new BitmapFactory.Options();
options.inJustDecodeBounds = true;
try {
is = getContentResolver().openInputStream(bitmapUri);
BitmapFactory.decodeStream(is, null, options); // Just get image size
} finally {
CropUtil.closeSilently(is);
}
int maxSize = getMaxImageSize();
int sampleSize = 1;
while (options.outHeight / sampleSize > maxSize || options.outWidth / sampleSize > maxSize) {
sampleSize = sampleSize << 1;
}
return sampleSize;
}
private int getMaxImageSize() {
int textureLimit = getMaxTextureSize();
if (textureLimit == 0) {
return SIZE_DEFAULT;
} else {
return Math.min(textureLimit, SIZE_LIMIT);
}
}
private int getMaxTextureSize() {
// The OpenGL texture size is the maximum size that can be drawn in an ImageView
int[] maxSize = new int[1];
GLES10.glGetIntegerv(GLES10.GL_MAX_TEXTURE_SIZE, maxSize, 0);
return maxSize[0];
}
private void startCrop() {
if (isFinishing()) {
return;
}
imageView.setImageRotateBitmapResetBase(rotateBitmap, true);
CropUtil.startBackgroundJob(this, null, getResources().getString(R.string.crop__wait),
new Runnable() {
public void run() {
final CountDownLatch latch = new CountDownLatch(1);
handler.post(new Runnable() {
public void run() {
if (imageView.getScale() == 1F) {
imageView.center(true, true);
}
latch.countDown();
}
});
try {
latch.await();
} catch (InterruptedException e) {
throw new RuntimeException(e);
}
new Cropper().crop();
}
}, handler
);
}
private class Cropper {
private void makeDefault() {
if (rotateBitmap == null) {
return;
}
HighlightView hv = new HighlightView(imageView);
final int width = rotateBitmap.getWidth();
final int height = rotateBitmap.getHeight();
Rect imageRect = new Rect(0, 0, width, height);
// Make the default size about 4/5 of the width or height
int cropWidth = Math.min(width, height) * 4 / 5;
@SuppressWarnings("SuspiciousNameCombination")
int cropHeight = cropWidth;
if (aspectX != 0 && aspectY != 0) {
if (aspectX > aspectY) {
cropHeight = cropWidth * aspectY / aspectX;
} else {
cropWidth = cropHeight * aspectX / aspectY;
}
}
int x = (width - cropWidth) / 2;
int y = (height - cropHeight) / 2;
RectF cropRect = new RectF(x, y, x + cropWidth, y + cropHeight);
hv.setup(imageView.getUnrotatedMatrix(), imageRect, cropRect, aspectX != 0 && aspectY != 0);
imageView.add(hv);
}
public void crop() {
handler.post(new Runnable() {
public void run() {
makeDefault();
imageView.invalidate();
if (imageView.highlightViews.size() == 1) {
cropView = imageView.highlightViews.get(0);
cropView.setFocus(true);
}
}
});
}
}
/*
* TODO
* This should use the decode/crop/encode single step API so that the whole
* (possibly large) Bitmap doesn't need to be read into memory
*/
private void onSaveClicked() {
if (cropView == null || isSaving) {
return;
}
isSaving = true;
Bitmap croppedImage = null;
Rect r = cropView.getScaledCropRect(sampleSize);
sampleSize = cropView.getCurrentScale();
int width = r.width();
int height = r.height();
int outWidth = width, outHeight = height;
if (maxX > 0 && maxY > 0 && (width > maxX || height > maxY)) {
float ratio = (float) width / (float) height;
if ((float) maxX / (float) maxY > ratio) {
outHeight = maxY;
outWidth = (int) ((float) maxY * ratio + .5f);
} else {
outWidth = maxX;
outHeight = (int) ((float) maxX / ratio + .5f);
}
}
if (IN_MEMORY_CROP && rotateBitmap != null) {
croppedImage = inMemoryCrop(rotateBitmap, croppedImage, r, width, height, outWidth, outHeight);
if (croppedImage != null) {
imageView.setImageBitmapResetBase(croppedImage, true);
imageView.center(true, true);
imageView.highlightViews.clear();
}
} else {
try {
croppedImage = decodeRegionCrop(croppedImage, r);
} catch (IllegalArgumentException e) {
setResultException(e);
finish();
return;
}
if (croppedImage != null) {
imageView.setImageRotateBitmapResetBase(new RotateBitmap(croppedImage, exifRotation), true);
imageView.center(true, true);
imageView.highlightViews.clear();
}
}
saveImage(croppedImage);
}
private void saveImage(Bitmap croppedImage) {
if (croppedImage != null) {
final Bitmap b = croppedImage;
CropUtil.startBackgroundJob(this, null, getResources().getString(R.string.crop__saving),
new Runnable() {
public void run() {
saveOutput(b);
}
}, handler
);
} else {
finish();
}
}
@TargetApi(10)
private Bitmap decodeRegionCrop(Bitmap croppedImage, Rect rect) {
// Release memory now
clearImageView();
InputStream is = null;
try {
is = getContentResolver().openInputStream(sourceUri);
BitmapRegionDecoder decoder = BitmapRegionDecoder.newInstance(is, false);
final int width = decoder.getWidth();
final int height = decoder.getHeight();
if (exifRotation != 0) {
// Adjust crop area to account for image rotation
Matrix matrix = new Matrix();
matrix.setRotate(-exifRotation);
RectF adjusted = new RectF();
matrix.mapRect(adjusted, new RectF(rect));
// Adjust to account for origin at 0,0
adjusted.offset(adjusted.left < 0 ? width : 0, adjusted.top < 0 ? height : 0);
rect = new Rect((int) adjusted.left, (int) adjusted.top, (int) adjusted.right, (int) adjusted.bottom);
}
try {
BitmapFactory.Options options = new BitmapFactory.Options();
int inSampleSize = 1;
if (width > 1000 || height > 1000) {
int hafWidth = width / 2;
int hafHeight = height / 2;
inSampleSize *= 2;
while (hafWidth > 1000 && hafHeight > 1000) {
hafWidth /= inSampleSize;
hafHeight /= inSampleSize;
inSampleSize *= 2;
}
}
options.inSampleSize = inSampleSize;
croppedImage = decoder.decodeRegion(rect, options);
} catch (IllegalArgumentException e) {
// Rethrow with some extra information
throw new IllegalArgumentException("Rectangle " + rect + " is outside of the image ("
+ width + "," + height + "," + exifRotation + ")", e);
}
} catch (IOException e) {
finish();
} catch (OutOfMemoryError e) {
setResultException(e);
} finally {
CropUtil.closeSilently(is);
}
return croppedImage;
}
private Bitmap inMemoryCrop(RotateBitmap rotateBitmap, Bitmap croppedImage, Rect r,
int width, int height, int outWidth, int outHeight) {
// In-memory crop means potential OOM errors,
// but we have no choice as we can't selectively decode a bitmap with this API level
System.gc();
try {
croppedImage = Bitmap.createBitmap(outWidth, outHeight, Bitmap.Config.RGB_565);
Canvas canvas = new Canvas(croppedImage);
RectF dstRect = new RectF(0, 0, width, height);
Matrix m = new Matrix();
m.setRectToRect(new RectF(r), dstRect, Matrix.ScaleToFit.FILL);
m.preConcat(rotateBitmap.getRotateMatrix());
canvas.drawBitmap(rotateBitmap.getBitmap(), m, null);
} catch (OutOfMemoryError e) {
setResultException(e);
System.gc();
}
// Release bitmap memory as soon as possible
clearImageView();
return croppedImage;
}
private void clearImageView() {
imageView.clear();
if (rotateBitmap != null) {
rotateBitmap.recycle();
}
System.gc();
}
private void saveOutput(Bitmap croppedImage) {
// TODO: 2016-07-20 是否考虑先压缩原图再去裁剪。。
if (saveUri != null) {
FileOutputStream outputStream = null;
try {
// outputStream = getContentResolver().openOutputStream(saveUri);
File file = new File(saveUri.getPath());
File pf = file.getParentFile();
if (pf != null) {
pf.mkdirs();
}
if (!file.exists()) {
file.createNewFile();
}
outputStream = new FileOutputStream(saveUri.getPath());
croppedImage.compress(Bitmap.CompressFormat.JPEG, 100, outputStream);
// if (outputStream.toByteArray().length > 0) {
// File file = new File(saveUri.getPath());
// File pf = file.getParentFile();
// if (pf != null) {
// pf.mkdirs();
// }
// if (!file.exists()) {
// file.createNewFile();
// }
// FileOutputStream out = null;
// try {
// out = new FileOutputStream(file);
// out.write(outputStream.toByteArray());
// out.flush();
// out.close();
// } catch (IOException e) {
// // TODO Auto-generated catch block
// e.printStackTrace();
// }finally {
// CropUtil.closeSilently(out);
// }
//
// }
} catch (IOException e) {
setResultException(e);
} finally {
CropUtil.closeSilently(outputStream);
}
if (!IN_MEMORY_CROP) {
// In-memory crop negates the rotation
CropUtil.copyExifRotation(
CropUtil.getFromMediaUri(getContentResolver(), sourceUri),
CropUtil.getFromMediaUri(getContentResolver(), saveUri)
);
}
setResultUri(saveUri);
}
// final Bitmap b = croppedImage;
// handler.post(new Runnable() {
// public void run() {
// imageView.clear();
// b.recycle();
// }
// });
finish();
}
@Override
protected void onDestroy() {
super.onDestroy();
clearImageView();
if (rotateBitmap != null) {
rotateBitmap.recycle();
}
}
@Override
public boolean onSearchRequested() {
return false;
}
public boolean isSaving() {
return isSaving;
}
private void setResultUri(Uri uri) {
setResult(RESULT_OK, new Intent().putExtra(MediaStore.EXTRA_OUTPUT, uri));
}
private void setResultException(Throwable throwable) {
setResult(Crop.RESULT_ERROR, new Intent().putExtra(Crop.Extra.ERROR, throwable));
}
}
