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author | Torsten Grote <t@grobox.de> | 2020-03-18 14:24:41 -0300 |
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committer | Torsten Grote <t@grobox.de> | 2020-03-18 14:24:41 -0300 |
commit | a4796ec47d89a851b260b6fc195494547208a025 (patch) | |
tree | d2941b68ff2ce22c523e7aa634965033b1100560 /merchant-terminal/src/main/java/net/taler/merchantpos/QrCodeManager.kt | |
download | taler-android-a4796ec47d89a851b260b6fc195494547208a025.tar.gz taler-android-a4796ec47d89a851b260b6fc195494547208a025.tar.bz2 taler-android-a4796ec47d89a851b260b6fc195494547208a025.zip |
Merge all three apps into one repository
Diffstat (limited to 'merchant-terminal/src/main/java/net/taler/merchantpos/QrCodeManager.kt')
-rw-r--r-- | merchant-terminal/src/main/java/net/taler/merchantpos/QrCodeManager.kt | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/merchant-terminal/src/main/java/net/taler/merchantpos/QrCodeManager.kt b/merchant-terminal/src/main/java/net/taler/merchantpos/QrCodeManager.kt new file mode 100644 index 0000000..595e7ac --- /dev/null +++ b/merchant-terminal/src/main/java/net/taler/merchantpos/QrCodeManager.kt @@ -0,0 +1,42 @@ +/* + * This file is part of GNU Taler + * (C) 2020 Taler Systems S.A. + * + * GNU Taler is free software; you can redistribute it and/or modify it under the + * terms of the GNU General Public License as published by the Free Software + * Foundation; either version 3, or (at your option) any later version. + * + * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY + * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR + * A PARTICULAR PURPOSE. See the GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License along with + * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/> + */ + +package net.taler.merchantpos + +import android.graphics.Bitmap +import android.graphics.Bitmap.Config.RGB_565 +import android.graphics.Color.BLACK +import android.graphics.Color.WHITE +import com.google.zxing.BarcodeFormat.QR_CODE +import com.google.zxing.qrcode.QRCodeWriter + +object QrCodeManager { + + fun makeQrCode(text: String, size: Int = 256): Bitmap { + val qrCodeWriter = QRCodeWriter() + val bitMatrix = qrCodeWriter.encode(text, QR_CODE, size, size) + val height = bitMatrix.height + val width = bitMatrix.width + val bmp = Bitmap.createBitmap(width, height, RGB_565) + for (x in 0 until width) { + for (y in 0 until height) { + bmp.setPixel(x, y, if (bitMatrix.get(x, y)) BLACK else WHITE) + } + } + return bmp + } + +} |