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