| /* |
| * Copyright (C) 2009-2010, Pino Toscano <pino@kde.org> |
| * Copyright (C) 2013 Adrian Johnson <ajohnson@redneon.com> |
| * Copyright (C) 2014, Hans-Peter Deifel <hpdeifel@gmx.de> |
| * Copyright (C) 2016 Jakub Alba <jakubalba@gmail.com> |
| * Copyright (C) 2017-2019 Albert Astals Cid <aacid@kde.org> |
| * Copyright (C) 2018 Suzuki Toshiya <mpsuzuki@hiroshima-u.ac.jp> |
| * Copyright (C) 2020 Adam Reichold <adam.reichold@t-online.de> |
| * Copyright (C) 2024 Oliver Sander <oliver.sander@tu-dresden.de> |
| * |
| * 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. |
| */ |
| |
| #include "poppler-private.h" |
| |
| #include "GooString.h" |
| #include "Page.h" |
| #include "UTF.h" |
| |
| #include <ctime> |
| #include <iostream> |
| #include <sstream> |
| |
| using namespace poppler; |
| |
| static void stderr_debug_function(const std::string &msg, void * /*data*/) |
| { |
| std::cerr << "poppler/" << msg << std::endl; |
| } |
| |
| debug_func detail::user_debug_function = stderr_debug_function; |
| void *detail::debug_closure = nullptr; |
| |
| void detail::error_function(ErrorCategory /*category*/, Goffset pos, const char *msg) |
| { |
| std::ostringstream oss; |
| if (pos >= 0) { |
| oss << "error (" << pos << "): "; |
| } else { |
| oss << "error: "; |
| } |
| oss << msg; |
| detail::user_debug_function(oss.str(), detail::debug_closure); |
| } |
| |
| rectf detail::pdfrectangle_to_rectf(const PDFRectangle &pdfrect) |
| { |
| return rectf(pdfrect.x1, pdfrect.y1, pdfrect.x2 - pdfrect.x1, pdfrect.y2 - pdfrect.y1); |
| } |
| |
| ustring detail::unicode_GooString_to_ustring(const GooString *str) |
| { |
| const char *data = str->c_str(); |
| const int len = str->getLength(); |
| |
| const bool is_unicodeLE = hasUnicodeByteOrderMarkLE(str->toStr()); |
| const bool is_unicode = hasUnicodeByteOrderMark(str->toStr()) || is_unicodeLE; |
| int i = is_unicode ? 2 : 0; |
| ustring::size_type ret_len = len - i; |
| if (is_unicode) { |
| ret_len >>= 1; |
| } |
| ustring ret(ret_len, 0); |
| size_t ret_index = 0; |
| ustring::value_type u; |
| if (is_unicode) { |
| while (i < len) { |
| u = is_unicodeLE ? ((data[i + 1] & 0xff) << 8) | (data[i] & 0xff) : ((data[i] & 0xff) << 8) | (data[i + 1] & 0xff); |
| i += 2; |
| ret[ret_index++] = u; |
| } |
| } else { |
| while (i < len) { |
| u = data[i] & 0xff; |
| ++i; |
| ret[ret_index++] = u; |
| } |
| } |
| |
| return ret; |
| } |
| |
| ustring detail::unicode_to_ustring(const Unicode *u, int length) |
| { |
| ustring str(length, 0); |
| ustring::iterator it = str.begin(); |
| const Unicode *uu = u; |
| for (int i = 0; i < length; ++i) { |
| *it++ = ustring::value_type(*uu++ & 0xffff); |
| } |
| return str; |
| } |
| |
| GooString *detail::ustring_to_unicode_GooString(const ustring &str) |
| { |
| const size_t len = str.size() * 2 + 2; |
| const ustring::value_type *me = str.data(); |
| byte_array ba(len); |
| ba[0] = (char)0xfe; |
| ba[1] = (char)0xff; |
| for (size_t i = 0; i < str.size(); ++i, ++me) { |
| ba[i * 2 + 2] = ((*me >> 8) & 0xff); |
| ba[i * 2 + 3] = (*me & 0xff); |
| } |
| GooString *goo = new GooString(&ba[0], len); |
| return goo; |
| } |