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//------------------------------------------------------------------------
// Copyright 2008-2010 (c) Jeff Brown <spadix@users.sourceforge.net>
//
// This file is part of the ZBar Bar Code Reader.
//
// The ZBar Bar Code Reader is free software; you can redistribute it
// and/or modify it under the terms of the GNU Lesser Public License as
// published by the Free Software Foundation; either version 2.1 of
// the License, or (at your option) any later version.
//
// The ZBar Bar Code Reader 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 Lesser Public License for more details.
//
// You should have received a copy of the GNU Lesser Public License
// along with the ZBar Bar Code Reader; if not, write to the Free
// Software Foundation, Inc., 51 Franklin St, Fifth Floor,
// Boston, MA 02110-1301 USA
//
// http://sourceforge.net/projects/zbar
//------------------------------------------------------------------------
#ifndef _QZBARIMAGE_H_
#define _QZBARIMAGE_H_
/// @file
/// QImage to Image type conversion wrapper
#include <qimage.h>
#include <zbar.h>
namespace zbar
{
/// wrap a QImage and convert into a format suitable for scanning.
class QZBarImage : public Image
{
public:
/// construct a zbar library image based on an existing QImage.
QZBarImage(const QImage &qimg) : qimg(qimg)
{
QImage::Format fmt = qimg.format();
if (fmt != QImage::Format_RGB32 && fmt != QImage::Format_ARGB32 &&
fmt != QImage::Format_ARGB32_Premultiplied)
throw FormatError();
unsigned bpl = qimg.bytesPerLine();
unsigned width = bpl / 4;
unsigned height = qimg.height();
set_size(width, height);
set_format(zbar_fourcc('B', 'G', 'R', '4'));
#if QT_VERSION >= QT_VERSION_CHECK(5, 10, 0)
unsigned long datalen = qimg.sizeInBytes();
#elif QT_VERSION >= QT_VERSION_CHECK(5, 0, 0)
unsigned long datalen = qimg.byteCount();
#else
unsigned long datalen = qimg.numBytes();
#endif
set_data(qimg.bits(), datalen);
if ((width * 4 != bpl) || (width * height * 4 > datalen))
throw FormatError();
}
private:
QImage qimg;
};
}; // namespace zbar
#endif
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