File indexing completed on 2024-05-12 04:19:43

0001 // vim: set tabstop=4 shiftwidth=4 expandtab:
0002 /*
0003 Gwenview: an image viewer
0004 Copyright 2008 Aurélien Gâteau <agateau@kde.org>
0005 
0006 This program is free software; you can redistribute it and/or
0007 modify it under the terms of the GNU General Public License
0008 as published by the Free Software Foundation; either version 2
0009 of the License, or (at your option) any later version.
0010 
0011 This program is distributed in the hope that it will be useful,
0012 but WITHOUT ANY WARRANTY; without even the implied warranty of
0013 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
0014 GNU General Public License for more details.
0015 
0016 You should have received a copy of the GNU General Public License
0017 along with this program; if not, write to the Free Software
0018 Foundation, Inc., 51 Franklin Street, Fifth Floor, Cambridge, MA 02110-1301, USA.
0019 
0020 */
0021 
0022 #include "fitshandler.h"
0023 
0024 #include "imageformats/fitsformat/fitsdata.h"
0025 
0026 #include "gwenview_lib_debug.h"
0027 #include <QImage>
0028 #include <QSize>
0029 #include <QVariant>
0030 
0031 namespace Gwenview
0032 {
0033 bool FitsHandler::canRead() const
0034 {
0035     if (!device()) {
0036         return false;
0037     }
0038 
0039     device()->seek(0);
0040     if (device()->peek(6) != "SIMPLE" && device()->peek(8) != "XTENSION") {
0041         return false;
0042     }
0043 
0044     FITSData fitsLoader;
0045 
0046     if (fitsLoader.loadFITS(*device())) {
0047         setFormat("fits");
0048         return true;
0049     }
0050     return false;
0051 }
0052 
0053 bool FitsHandler::read(QImage *image)
0054 {
0055     if (!device()) {
0056         return false;
0057     }
0058 
0059     *image = FITSData::FITSToImage(*device());
0060     return true;
0061 }
0062 
0063 bool FitsHandler::supportsOption(ImageOption option) const
0064 {
0065     return option == Size;
0066 }
0067 
0068 QVariant FitsHandler::option(ImageOption option) const
0069 {
0070     if (option == Size && device()) {
0071         FITSData fitsLoader;
0072 
0073         if (fitsLoader.loadFITS(*device())) {
0074             return QSize((int)fitsLoader.getWidth(), (int)fitsLoader.getHeight());
0075         }
0076     }
0077     return QVariant();
0078 }
0079 
0080 } // namespace