37 lines
1.1 KiB
Java
37 lines
1.1 KiB
Java
package org.thoughtcrime.securesms.qr;
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import android.graphics.Bitmap;
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import android.graphics.Color;
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import androidx.annotation.NonNull;
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import org.thoughtcrime.securesms.logging.Log;
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import com.google.zxing.BarcodeFormat;
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import com.google.zxing.WriterException;
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import com.google.zxing.common.BitMatrix;
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import com.google.zxing.qrcode.QRCodeWriter;
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public class QrCode {
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public static final String TAG = QrCode.class.getSimpleName();
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public static @NonNull Bitmap create(String data) {
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try {
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BitMatrix result = new QRCodeWriter().encode(data, BarcodeFormat.QR_CODE, 512, 512);
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Bitmap bitmap = Bitmap.createBitmap(result.getWidth(), result.getHeight(), Bitmap.Config.ARGB_8888);
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for (int y = 0; y < result.getHeight(); y++) {
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for (int x = 0; x < result.getWidth(); x++) {
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if (result.get(x, y)) {
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bitmap.setPixel(x, y, Color.BLACK);
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}
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}
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}
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return bitmap;
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} catch (WriterException e) {
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Log.w(TAG, e);
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return Bitmap.createBitmap(512, 512, Bitmap.Config.ARGB_8888);
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}
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}
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}
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