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82 lines
2.1 KiB
C++
82 lines
2.1 KiB
C++
/** ===========================================================
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*
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* This file is a part of digiKam project
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* <a href="http://www.digikam.org">http://www.digikam.org</a>
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*
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* @date 2009-02-04
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* @brief a command line tool to set IPTC Preview
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*
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* @author Copyright (C) 2009-2012 by Gilles Caulier
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* <a href="mailto:caulier dot gilles at gmail dot com">caulier dot gilles at gmail dot com</a>
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*
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* This program is free software; you can redistribute it
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* and/or modify it under the terms of the GNU General
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* Public License as published by the Free Software Foundation;
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* either version 2, or (at your option)
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* 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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* ============================================================ */
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// Qt includes
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#include <QMatrix>
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#include <QImage>
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#include <QString>
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#include <QFile>
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// KDE includes
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#include "kdeversion.h"
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#include "qdebug.h"
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#define PRINT_DEBUG qDebug()
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#define ENDL
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// Local includes
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#include "kexiv2.h"
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using namespace KExiv2Iface;
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int main (int argc, char **argv)
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{
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if(argc != 2)
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{
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PRINT_DEBUG << "setiptcpreview - update/add jpeg iptc preview to image" ENDL;
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PRINT_DEBUG << "Usage: <image>" ENDL;
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return -1;
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}
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QImage preview;
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QString filePath(argv[1]);
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KExiv2 meta(filePath);
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QImage image(filePath);
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QMatrix matrix;
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matrix.rotate(90);
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image = image.transformed(matrix);
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QSize previewSize = image.size();
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previewSize.scale(1280, 1024, Qt::KeepAspectRatio);
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// Ensure that preview is not upscaled
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if (previewSize.width() >= (int)image.width())
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preview = image.copy();
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else
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preview = image.scaled(previewSize.width(), previewSize.height(), Qt::IgnoreAspectRatio).copy();
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meta.setImagePreview(preview);
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meta.applyChanges();
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QImage preview2;
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KExiv2 meta2(filePath);
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meta2.getImagePreview(preview2);
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preview2.save("preview.png", "PNG");
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return 0;
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}
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