| /* poppler-annotation-helper.h: qt interface to poppler |
| * Copyright (C) 2006, 2008, 2017-2019, Albert Astals Cid <aacid@kde.org> |
| * Copyright (C) 2008, Pino Toscano <pino@kde.org> |
| * Copyright (C) 2012, Fabio D'Urso <fabiodurso@hotmail.it> |
| * Copyright (C) 2018, Dileep Sankhla <sankhla.dileep96@gmail.com> |
| * Copyright (C) 2018, Carlos Garcia Campos <carlosgc@gnome.org> |
| * Copyright (C) 2018, 2019, Oliver Sander <oliver.sander@tu-dresden.de> |
| * Adapting code from |
| * Copyright (C) 2004 by Enrico Ros <eros.kde@email.it> |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2, or (at your option) |
| * any later version. |
| * |
| * This program 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 General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. |
| */ |
| |
| #ifndef _POPPLER_ANNOTATION_HELPER_H_ |
| #define _POPPLER_ANNOTATION_HELPER_H_ |
| |
| #include <memory> |
| |
| #include <QtCore/QDebug> |
| |
| #include <Object.h> |
| |
| class QColor; |
| |
| class AnnotColor; |
| |
| namespace Poppler { |
| |
| class XPDFReader |
| { |
| public: |
| // transform from user coords to normalized ones using the matrix M |
| static inline void transform( double * M, double x, double y, QPointF &res ); |
| static inline void invTransform( const double * M, const QPointF p, double &x, double &y ); |
| }; |
| |
| void XPDFReader::transform( double * M, double x, double y, QPointF &res ) |
| { |
| res.setX( M[0] * x + M[2] * y + M[4] ); |
| res.setY( M[1] * x + M[3] * y + M[5] ); |
| } |
| |
| void XPDFReader::invTransform( const double * M, const QPointF p, double &x, double &y ) |
| { |
| const double det = M[0]*M[3] - M[1]*M[2]; |
| Q_ASSERT(det != 0); |
| |
| const double invM[4] = { M[3]/det, -M[1]/det, -M[2]/det, M[0]/det }; |
| const double xt = p.x() - M[4]; |
| const double yt = p.y() - M[5]; |
| |
| x = invM[0] * xt + invM[2] * yt; |
| y = invM[1] * xt + invM[3] * yt; |
| } |
| |
| QColor convertAnnotColor( const AnnotColor *color ); |
| std::unique_ptr<AnnotColor> convertQColor( const QColor &color ); |
| |
| } |
| |
| #endif |