/*
* *
* * Created by Ali YÜCE on 3/2/20 11:18 PM
* * https://github.com/mayuce/
* * Copyright (c) 2020 . All rights reserved.
* * Last modified 3/2/20 11:10 PM
*
*/
package com.labters.documentscanner;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.ColorMatrix;
import android.graphics.ColorMatrixColorFilter;
import android.graphics.Paint;
import android.os.Bundle;
import android.os.Environment;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.FrameLayout;
import android.widget.ImageView;
import android.widget.ProgressBar;
import android.widget.RelativeLayout;
import android.widget.Toast;
import com.labters.documentscanner.base.CropperErrorType;
import com.labters.documentscanner.base.DocumentScanActivity;
import com.labters.documentscanner.helpers.ScannerConstants;
import com.labters.documentscanner.libraries.PolygonView;
import java.io.File;
import java.io.FileOutputStream;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;
import io.reactivex.Observable;
import io.reactivex.android.schedulers.AndroidSchedulers;
import io.reactivex.schedulers.Schedulers;
public class ImageCropActivity extends DocumentScanActivity {
private FrameLayout holderImageCrop;
private ImageView imageView;
private PolygonView polygonView;
private boolean isInverted;
private ProgressBar progressBar;
private Bitmap cropImage;
private OnClickListener btnImageEnhanceClick = new OnClickListener() {
@Override
public void onClick(View v) {
showProgressBar();
disposable.add(
Observable.fromCallable(() -> {
cropImage = getCroppedImage();
if (cropImage == null)
return false;
if (ScannerConstants.saveStorage)
saveToInternalStorage(cropImage);
return false;
})
.subscribeOn(Schedulers.io())
.observeOn(AndroidSchedulers.mainThread())
.subscribe((result) -> {
hideProgressBar();
if (cropImage != null) {
ScannerConstants.selectedImageBitmap = cropImage;
setResult(RESULT_OK);
finish();
}
})
);
}
};
private OnClickListener btnRebase = v -> {
cropImage = ScannerConstants.selectedImageBitmap.copy(ScannerConstants.selectedImageBitmap.getConfig(), true);
isInverted = false;
startCropping();
};
private OnClickListener btnCloseClick = v -> finish();
private OnClickListener btnInvertColor = new OnClickListener() {
@Override
public void onClick(View v) {
showProgressBar();
disposable.add(
Observable.fromCallable(() -> {
invertColor();
return false;
})
.subscribeOn(Schedulers.io())
.observeOn(AndroidSchedulers.mainThread())
.subscribe((result) -> {
hideProgressBar();
Bitmap scaledBitmap = scaledBitmap(cropImage, holderImageCrop.getWidth(), holderImageCrop.getHeight());
imageView.setImageBitmap(scaledBitmap);
})
);
}
};
private OnClickListener onRotateClick = new OnClickListener() {
@Override
public void onClick(View v) {
showProgressBar();
disposable.add(
Observable.fromCallable(() -> {
if (isInverted)
invertColor();
cropImage = rotateBitmap(cropImage, 90);
return false;
})
.subscribeOn(Schedulers.io())
.observeOn(AndroidSchedulers.mainThread())
.subscribe((result) -> {
hideProgressBar();
startCropping();
})
);
}
};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_image_crop);
cropImage = ScannerConstants.selectedImageBitmap;
isInverted = false;
if (ScannerConstants.selectedImageBitmap != null)
initView();
else {
Toast.makeText(this, ScannerConstants.imageError, Toast.LENGTH_LONG).show();
finish();
}
}
@Override
protected FrameLayout getHolderImageCrop() {
return holderImageCrop;
}
@Override
protected ImageView getImageView() {
return imageView;
}
@Override
protected PolygonView getPolygonView() {
return polygonView;
}
@Override
protected void showProgressBar() {
RelativeLayout rlContainer = findViewById(R.id.rlContainer);
setViewInteract(rlContainer, false);
progressBar.setVisibility(View.VISIBLE);
}
@Override
protected void hideProgressBar() {
RelativeLayout rlContainer = findViewById(R.id.rlContainer);
setViewInteract(rlContainer, true);
progressBar.setVisibility(View.GONE);
}
@Override
protected void showError(CropperErrorType errorType) {
switch (errorType) {
case CROP_ERROR:
Toast.makeText(this, ScannerConstants.cropError, Toast.LENGTH_LONG).show();
break;
}
}
@Override
protected Bitmap getBitmapImage() {
return cropImage;
}
private void setViewInteract(View view, boolean canDo) {
view.setEnabled(canDo);
if (view instanceof ViewGroup) {
for (int i = 0; i < ((ViewGroup) view).getChildCount(); i++) {
setViewInteract(((ViewGroup) view).getChildAt(i), canDo);
}
}
}
private void initView() {
Button btnImageCrop = findViewById(R.id.btnImageCrop);
Button btnClose = findViewById(R.id.btnClose);
holderImageCrop = findViewById(R.id.holderImageCrop);
imageView = findViewById(R.id.imageView);
ImageView ivRotate = findViewById(R.id.ivRotate);
ImageView ivInvert = findViewById(R.id.ivInvert);
ImageView ivRebase = findViewById(R.id.ivRebase);
btnImageCrop.setText(ScannerConstants.cropText);
btnClose.setText(ScannerConstants.backText);
polygonView = findViewById(R.id.polygonView);
progressBar = findViewById(R.id.progressBar);
if (progressBar.getIndeterminateDrawable() != null && ScannerConstants.progressColor != null)
progressBar.getIndeterminateDrawable().setColorFilter(Color.parseColor(ScannerConstants.progressColor), android.graphics.PorterDuff.Mode.MULTIPLY);
else if (progressBar.getProgressDrawable() != null && ScannerConstants.progressColor != null)
progressBar.getProgressDrawable().setColorFilter(Color.parseColor(ScannerConstants.progressColor), android.graphics.PorterDuff.Mode.MULTIPLY);
btnImageCrop.setBackgroundColor(Color.parseColor(ScannerConstants.cropColor));
btnClose.setBackgroundColor(Color.parseColor(ScannerConstants.backColor));
btnImageCrop.setOnClickListener(btnImageEnhanceClick);
btnClose.setOnClickListener(btnCloseClick);
ivRotate.setOnClickListener(onRotateClick);
ivInvert.setOnClickListener(btnInvertColor);
ivRebase.setOnClickListener(btnRebase);
startCropping();
}
private void invertColor() {
if (!isInverted) {
Bitmap bmpMonochrome = Bitmap.createBitmap(cropImage.getWidth(), cropImage.getHeight(), Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(bmpMonochrome);
ColorMatrix ma = new ColorMatrix();
ma.setSaturation(0);
Paint paint = new Paint();
paint.setColorFilter(new ColorMatrixColorFilter(ma));
canvas.drawBitmap(cropImage, 0, 0, paint);
cropImage = bmpMonochrome.copy(bmpMonochrome.getConfig(), true);
} else {
cropImage = cropImage.copy(cropImage.getConfig(), true);
}
isInverted = !isInverted;
}
private String saveToInternalStorage(Bitmap bitmapImage) {
File directory = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES);
String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss", Locale.getDefault()).format(new Date());
String imageFileName = "cropped_" + timeStamp + ".png";
File mypath = new File(directory, imageFileName);
FileOutputStream fos = null;
try {
fos = new FileOutputStream(mypath);
bitmapImage.compress(Bitmap.CompressFormat.PNG, 100, fos);
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
fos.close();
} catch (Exception e) {
e.printStackTrace();
}
}
return directory.getAbsolutePath();
}
}
