44 lines
1.5 KiB
C++
44 lines
1.5 KiB
C++
/*
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* This file is part of the Flowee project
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* Copyright (C) 2018-2022 Tom Zander <tom@flowee.org>
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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 <Logger.h>
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// cmake requires the presence of the lib.
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#include <qrencode.h>
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QRCreator::QRCreator()
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: QQuickImageProvider(QQmlImageProviderBase::Image)
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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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QRcode *code = QRcode_encodeString(id.toLatin1().constData(), 0, QR_ECLEVEL_L, QR_MODE_8, 1);
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QImage result = QImage(code->width + 8, code->width + 8, 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 + 4, y + 4, ((*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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return result;
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}
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