TomZ
71 lines
2.2 KiB
C++
71 lines
2.2 KiB
C++
/*
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* This file is part of the Flowee project
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* Copyright (C) 2018 Tom Zander <tomz@freedommail.ch>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "QRCreator.h"
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#include "PaymentDataProvider.h"
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#include "Payment.h"
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#if defined(HAVE_CONFIG_H)
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#include "config/flowee-config.h" /* for USE_QRCODE */
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#endif
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#ifdef USE_QRCODE
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#include <qrencode.h>
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#endif
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QRCreator::QRCreator(PaymentDataProvider *provider)
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: QQuickImageProvider(QQmlImageProviderBase::Image),
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m_provider(provider)
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{
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}
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QImage QRCreator::requestImage(const QString &id, QSize *size, const QSize &requestedSize)
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{
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Q_UNUSED(id)
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Q_UNUSED(size)
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Q_UNUSED(requestedSize)
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const Payment *payment = m_provider->payment();
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if (!payment)
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return QImage();
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#ifdef USE_QRCODE
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QString text("bitcoincash:%1?amount=%2.%3");
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text = text.arg(payment->pubAddress());
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qint64 amount = payment->amountBch();
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const int major = amount / 100000000;
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int minor = amount % 100000000;
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text = text.arg(major).arg(minor, 8, 10, QChar('0'));
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while (text.endsWith('0'))
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text = text.left(text.size() - 1);
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QRcode *code = QRcode_encodeString(text.toLatin1().constData(), 0, QR_ECLEVEL_L, QR_MODE_8, 1);
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QImage result = QImage(code->width, code->width, QImage::Format_RGB32);
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result.fill(0xffffff);
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unsigned char *p = code->data;
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for (int y = 0; y < code->width; y++) {
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for (int x = 0; x < code->width; x++) {
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result.setPixel(x, y, ((*p & 1) ? 0x0 : 0xffffff));
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++p;
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}
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}
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QRcode_free(code);
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#else
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QImage result = QImage(8,8, QImage::Format_RGB32);
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result.fill(0xffffff);
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#endif
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return result;
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}
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