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75 lines
1.6 KiB
C++
75 lines
1.6 KiB
C++
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// vim: set tabstop=4 shiftwidth=4 expandtab:
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/*
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Gwenview: an image viewer
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Copyright 2007 Aurélien Gâteau <agateau@kde.org>
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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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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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include "imageutils.h"
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// Qt
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#include <QMatrix>
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namespace Gwenview
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{
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namespace ImageUtils
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{
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QMatrix transformMatrix(Orientation orientation)
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{
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QMatrix matrix;
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switch (orientation) {
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case NOT_AVAILABLE:
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case NORMAL:
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break;
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case HFLIP:
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matrix.scale(-1, 1);
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break;
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case ROT_180:
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matrix.rotate(180);
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break;
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case VFLIP:
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matrix.scale(1, -1);
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break;
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case TRANSPOSE:
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matrix.scale(-1, 1);
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matrix.rotate(90);
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break;
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case ROT_90:
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matrix.rotate(90);
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break;
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case TRANSVERSE:
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matrix.scale(1, -1);
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matrix.rotate(90);
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break;
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case ROT_270:
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matrix.rotate(270);
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break;
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}
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return matrix;
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}
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} // namespace
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} // namespace
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