package net.dev123.yibo;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.util.concurrent.CountDownLatch;
import net.dev123.yibo.common.ExifUtils;
import net.dev123.yibo.common.ImageUtil;
import net.dev123.yibo.widget.CropImageView;
import net.dev123.yibo.widget.HighlightView;
import android.content.ContentResolver;
import android.content.ContentValues;
import android.content.Intent;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.Bitmap.CompressFormat;
import android.graphics.Canvas;
import android.graphics.Matrix;
import android.graphics.Path;
import android.graphics.PointF;
import android.graphics.PorterDuff;
import android.graphics.Rect;
import android.graphics.RectF;
import android.graphics.Region;
import android.media.FaceDetector;
import android.net.Uri;
import android.os.Bundle;
import android.os.Handler;
import android.provider.MediaStore;
import android.provider.MediaStore.Images;
import android.util.Log;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;
import android.widget.Toast;
/**
* The activity can crop specific region of interest from an image.
*/
public class CropImageActivity extends MonitoredActivity {
private static final String TAG = "CropImage";
// These are various options can be specified in the intent.
private Bitmap.CompressFormat mOutputFormat = Bitmap.CompressFormat.JPEG;
// only used with mSaveUri
private Uri mSaveUri = null;
private int mAspectX, mAspectY;
private boolean mCircleCrop = false;
private final Handler mHandler = new Handler();
// These options specifiy the output image size and whether we should
// scale the output to fit it (or just crop it).
private int mOutputX, mOutputY;
private boolean mScale;
private boolean mScaleUp = true;
private boolean mDoFaceDetection = true;
boolean mWaitingToPick; // Whether we are wait the user to pick a face.
boolean mSaving; // Whether the "save" button is already clicked.
private CropImageView mImageView;
private ContentResolver mContentResolver;
private Bitmap mBitmap;
HighlightView mCrop;
private String mImagePath;
@Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
mContentResolver = getContentResolver();
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.cropimage);
mImageView = (CropImageView) findViewById(R.id.image);
Intent intent = getIntent();
Bundle extras = intent.getExtras();
if (extras != null) {
if (extras.getString("circleCrop") != null) {
mCircleCrop = true;
mAspectX = 1;
mAspectY = 1;
}
mSaveUri = (Uri) extras.getParcelable(MediaStore.EXTRA_OUTPUT);
if (mSaveUri != null) {
String outputFormatString = extras.getString("outputFormat");
if (outputFormatString != null) {
mOutputFormat = Bitmap.CompressFormat.valueOf(outputFormatString);
}
}
mBitmap = (Bitmap) extras.getParcelable("data");
mAspectX = extras.getInt("aspectX");
mAspectY = extras.getInt("aspectY");
mOutputX = extras.getInt("outputX");
mOutputY = extras.getInt("outputY");
mScale = extras.getBoolean("scale", true);
mScaleUp = extras.getBoolean("scaleUpIfNeeded", true);
mDoFaceDetection = extras.containsKey("noFaceDetection") ? !extras.getBoolean("noFaceDetection") : true;
}
if (mBitmap == null && intent.getData() != null) {
try {
// Create a MediaItem representing the URI.
Uri target = intent.getData();
String targetScheme = target.getScheme();
int rotation = 0;
if (targetScheme.equals(ContentResolver.SCHEME_CONTENT)) {
Cursor cursor = getContentResolver().query(target, null, null, null, null);
if (cursor != null) {
int pathIndex = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
int rotateIndex = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.ORIENTATION);
if (cursor.moveToFirst()) {
mImagePath = cursor.getString(pathIndex);
rotation = cursor.getInt(rotateIndex);
}
cursor.close();
}
} else if (targetScheme.equals(ContentResolver.SCHEME_FILE)) {
mImagePath = target.getPath();
if (android.os.Build.VERSION.SDK_INT > android.os.Build.VERSION_CODES.DONUT) {
rotation = ExifUtils.getExifRotation(mImagePath);
}
}
mBitmap = ImageUtil.createBitmapFromUri(this, target.toString(), 1024, 1024);
if (mBitmap != null && rotation != 0) {
mBitmap = ImageUtil.rotate(mBitmap, rotation);
}
} catch (Exception e) {
// Do nothing
}
}
if (mBitmap == null) {
Log.d(TAG, "Cannot load bitmap, exiting.");
finish();
return;
}
// Make UI fullscreen.
getWindow().addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
findViewById(R.id.btnCancel).setOnClickListener(
new View.OnClickListener() {
public void onClick(View v) {
setResult(RESULT_CANCELED);
finish();
}
});
findViewById(R.id.btnSave).setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
onSaveClicked();
}
});
startFaceDetection();
}
private void startFaceDetection() {
if (isFinishing()) {
return;
}
mImageView.setImageBitmapResetBase(mBitmap, mImageView.getRotation(), true);
Util.startBackgroundJob(this, null, "Running……", new Runnable() {
public void run() {
final CountDownLatch latch = new CountDownLatch(1);
final Bitmap b = mBitmap;
mHandler.post(new Runnable() {
public void run() {
if (b != mBitmap && b != null) {
mImageView.setImageBitmapResetBase(b, mImageView.getRotation(), true);
mBitmap.recycle();
mBitmap = b;
}
if (mImageView.getScale() == 1.0f) {
mImageView.center(true, true);
}
latch.countDown();
}
});
try {
latch.await();
} catch (InterruptedException e) {
throw new RuntimeException(e);
}
mRunFaceDetection.run();
}
}, mHandler);
}
private void onSaveClicked() {
// TODO this code needs to change to use the decode/crop/encode single
// step api so that we don't require that the whole (possibly large)
// bitmap doesn't have to be read into memory
if (mSaving)
return;
if (mCrop == null) {
return;
}
mSaving = true;
Rect r = mCrop.getCropRect();
int width = r.width();
int height = r.height();
// If we are circle cropping, we want alpha channel, which is the
// third param here.
Bitmap croppedImage = Bitmap.createBitmap(width, height,
mCircleCrop ? Bitmap.Config.ARGB_8888 : Bitmap.Config.RGB_565);
{
Canvas canvas = new Canvas(croppedImage);
Rect dstRect = new Rect(0, 0, width, height);
canvas.drawBitmap(mBitmap, r, dstRect, null);
}
if (mCircleCrop) {
// OK, so what's all this about?
// Bitmaps are inherently rectangular but we want to return
// something that's basically a circle. So we fill in the
// area around the circle with alpha. Note the all important
// PortDuff.Mode.CLEAR.
Canvas c = new Canvas(croppedImage);
Path p = new Path();
p.addCircle(width / 2F, height / 2F, width / 2F, Path.Direction.CW);
c.clipPath(p, Region.Op.DIFFERENCE);
c.drawColor(0x00000000, PorterDuff.Mode.CLEAR);
}
/* If the output is required to a specific size then scale or fill */
if (mOutputX != 0 && mOutputY != 0) {
if (mScale) {
/* Scale the image to the required dimensions */
Bitmap old = croppedImage;
int options = ImageUtil.OPTIONS_NONE;
if (mScaleUp) {
options |= ImageUtil.OPTIONS_SCALE_UP;
}
croppedImage = ImageUtil.transform(new Matrix(), croppedImage, mOutputX, mOutputY, options);
if (old != croppedImage) {
old.recycle();
}
} else {
/*
* Don't scale the image crop it to the size requested. Create
* an new image with the cropped image in the center and the
* extra space filled.
*/
// Don't scale the image but instead fill it so it's the
// required dimension
Bitmap b = Bitmap.createBitmap(mOutputX, mOutputY,
Bitmap.Config.RGB_565);
Canvas canvas = new Canvas(b);
Rect srcRect = mCrop.getCropRect();
Rect dstRect = new Rect(0, 0, mOutputX, mOutputY);
int dx = (srcRect.width() - dstRect.width()) / 2;
int dy = (srcRect.height() - dstRect.height()) / 2;
/* If the srcRect is too big, use the center part of it. */
srcRect.inset(Math.max(0, dx), Math.max(0, dy));
/* If the dstRect is too big, use the center part of it. */
dstRect.inset(Math.max(0, -dx), Math.max(0, -dy));
/* Draw the cropped bitmap in the center */
canvas.drawBitmap(mBitmap, srcRect, dstRect, null);
/* Set the cropped bitmap as the new bitmap */
croppedImage.recycle();
croppedImage = b;
}
}
// Return the cropped image directly or save it to the specified URI.
Bundle myExtras = getIntent().getExtras();
if (myExtras != null
&& (myExtras.getParcelable("data") != null
|| myExtras.getBoolean("return-data"))) {
Bundle extras = new Bundle();
extras.putParcelable("data", croppedImage);
setResult(RESULT_OK, (new Intent()).setAction("inline-data").putExtras(extras));
finish();
} else {
final Bitmap b = croppedImage;
Util.startBackgroundJob(this, null, "Saving image", new Runnable() {
public void run() {
saveOutput(b);
}
}, mHandler);
}
}
private void saveOutput(Bitmap croppedImage) {
if (mSaveUri != null) {
OutputStream outputStream = null;
try {
outputStream = mContentResolver.openOutputStream(mSaveUri);
if (outputStream != null) {
croppedImage.compress(mOutputFormat, 75, outputStream);
}
} catch (IOException ex) {
Log.e(TAG, "Cannot open file: " + mSaveUri, ex);
} finally {
if (outputStream != null) {
try {
outputStream.close();
} catch (Throwable t) {
// do nothing
}
}
}
Bundle extras = new Bundle();
setResult(RESULT_OK,
new Intent(mSaveUri.toString()).putExtras(extras));
} else {
Bundle extras = new Bundle();
extras.putString("rect", mCrop.getCropRect().toString());
File oldPath = new File(mImagePath);
File directory = new File(oldPath.getParent());
int x = 0;
String fileName = oldPath.getName();
fileName = fileName.substring(0, fileName.lastIndexOf("."));
// Try file-1.jpg, file-2.jpg, ... until we find a filename
// which does not exist yet.
while (true) {
x += 1;
String candidate = directory.toString() + File.separator + fileName + "-" + x + ".jpg";
boolean exists = (new File(candidate)).exists();
if (!exists) {
break;
}
}
String title = fileName + "-" + x;
String finalFileName = title + ".jpg";
OutputStream outputStream = null;
try {
File file = new File(directory, finalFileName);
outputStream = new FileOutputStream(file);
if (outputStream != null) {
croppedImage.compress(CompressFormat.JPEG, 75, outputStream);
}
} catch (IOException ex) {
Log.e(TAG, "Cannot open file: " + mSaveUri, ex);
} finally {
if (outputStream != null) {
try {
outputStream.close();
} catch (Throwable t) {
// do nothing
}
}
}
//获取保存后的图片大小
long size = new File(directory, finalFileName).length();
ContentValues values = new ContentValues();
values.put(Images.Media.TITLE, title);
values.put(Images.Media.DISPLAY_NAME, finalFileName);
values.put(Images.Media.MIME_TYPE, "image/jpeg");
values.put(Images.Media.DATA, directory + "/" + finalFileName);
values.put(Images.Media.SIZE, size);
Uri newUri = mContentResolver.insert(Images.Media.EXTERNAL_CONTENT_URI, values);
if (newUri != null) {
setResult(RESULT_OK, new Intent(newUri.toString()).putExtras(extras));
} else {
setResult(RESULT_OK);
}
}
croppedImage.recycle();
finish();
}
@Override
protected void onPause() {
super.onPause();
}
@Override
protected void onDestroy() {
super.onDestroy();
}
Runnable mRunFaceDetection = new Runnable() {
float mScale = 1F;
Matrix mImageMatrix;
FaceDetector.Face[] mFaces = new FaceDetector.Face[3];
int mNumFaces;
// For each face, we create a HightlightView for it.
private void handleFace(FaceDetector.Face f) {
PointF midPoint = new PointF();
int r = ((int) (f.eyesDistance() * mScale)) * 2;
f.getMidPoint(midPoint);
midPoint.x *= mScale;
midPoint.y *= mScale;
int midX = (int) midPoint.x;
int midY = (int) midPoint.y;
HighlightView hv = new HighlightView(mImageView);
int width = mBitmap.getWidth();
int height = mBitmap.getHeight();
Rect imageRect = new Rect(0, 0, width, height);
RectF faceRect = new RectF(midX, midY, midX, midY);
faceRect.inset(-r, -r);
if (faceRect.left < 0) {
faceRect.inset(-faceRect.left, -faceRect.left);
}
if (faceRect.top < 0) {
faceRect.inset(-faceRect.top, -faceRect.top);
}
if (faceRect.right > imageRect.right) {
faceRect.inset(faceRect.right - imageRect.right, faceRect.right - imageRect.right);
}
if (faceRect.bottom > imageRect.bottom) {
faceRect.inset(faceRect.bottom - imageRect.bottom, faceRect.bottom - imageRect.bottom);
}
hv.setup(mImageMatrix, imageRect, faceRect, mCircleCrop, mAspectX != 0 && mAspectY != 0);
mImageView.add(hv);
}
// Create a default HightlightView if we found no face in the picture.
private void makeDefault() {
HighlightView hv = new HighlightView(mImageView);
int width = mBitmap.getWidth();
int height = mBitmap.getHeight();
Rect imageRect = new Rect(0, 0, width, height);
// CR: sentences!
// make the default size about 4/5 of the width or height
int cropWidth = Math.min(width, height) * 4 / 5;
int cropHeight = cropWidth;
if (mAspectX != 0 && mAspectY != 0) {
if (mAspectX > mAspectY) {
cropHeight = cropWidth * mAspectY / mAspectX;
} else {
cropWidth = cropHeight * mAspectX / mAspectY;
}
}
int x = (width - cropWidth) / 2;
int y = (height - cropHeight) / 2;
RectF cropRect = new RectF(x, y, x + cropWidth, y + cropHeight);
hv.setup(mImageMatrix, imageRect, cropRect, mCircleCrop, mAspectX != 0 && mAspectY != 0);
mImageView.add(hv);
}
// Scale the image down for faster face detection.
private Bitmap prepareBitmap() {
if (mBitmap == null) {
return null;
}
// 256 pixels wide is enough.
if (mBitmap.getWidth() > 256) {
mScale = 256.0F / mBitmap.getWidth(); // CR: F => f (or change
// all f to F).
}
Matrix matrix = new Matrix();
matrix.setScale(mScale, mScale);
Bitmap faceBitmap = Bitmap.createBitmap(mBitmap, 0, 0, mBitmap.getWidth(), mBitmap.getHeight(), matrix, true);
return faceBitmap;
}
public void run() {
mImageMatrix = mImageView.getImageMatrix();
Bitmap faceBitmap = prepareBitmap();
mScale = 1.0F / mScale;
if (faceBitmap != null && mDoFaceDetection) {
FaceDetector detector = new FaceDetector(faceBitmap.getWidth(), faceBitmap.getHeight(), mFaces.length);
mNumFaces = detector.findFaces(faceBitmap, mFaces);
}
if (faceBitmap != null && faceBitmap != mBitmap) {
faceBitmap.recycle();
}
mHandler.post(new Runnable() {
public void run() {
mWaitingToPick = mNumFaces > 1;
if (mNumFaces > 0) {
for (int i = 0; i < mNumFaces; i++) {
handleFace(mFaces[i]);
}
} else {
makeDefault();
}
mImageView.invalidate();
if (mImageView.getHighlightViews().size() == 1) {
mCrop = mImageView.getHighlightViews().get(0);
mCrop.setFocus(true);
}
if (mNumFaces > 1) {
// CR: no need for the variable t. just do
// Toast.makeText(...).show().
Toast t = Toast.makeText(CropImageActivity.this, "Choose One", Toast.LENGTH_SHORT);
t.show();
}
}
});
}
};
public boolean isSaving() {
return mSaving;
}
public void setCrop(HighlightView mCrop) {
this.mCrop = mCrop;
}
public boolean isWaitingToPick() {
return mWaitingToPick;
}
public void setWaitingToPick(boolean mWaitingToPick) {
this.mWaitingToPick = mWaitingToPick;
}
}