| /* |
| * Copyright (C) 2009-2010, Pino Toscano <pino@kde.org> |
| * Copyright (C) 2010, Hib Eris <hib@hiberis.nl> |
| * Copyright (C) 2014, 2015 Hans-Peter Deifel <hpdeifel@gmx.de> |
| * Copyright (C) 2015, Tamas Szekeres <szekerest@gmail.com> |
| * Copyright (C) 2016 Jakub Alba <jakubalba@gmail.com> |
| * Copyright (C) 2018, Albert Astals Cid <aacid@kde.org> |
| * Copyright (C) 2018 Suzuki Toshiya <mpsuzuki@hiroshima-u.ac.jp> |
| * Copyright (C) 2018, Adam Reichold <adam.reichold@t-online.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. |
| */ |
| |
| /** |
| \file poppler-global.h |
| */ |
| #include "poppler-global.h" |
| |
| #include "poppler-private.h" |
| #include "poppler-document-private.h" |
| |
| #include "DateInfo.h" |
| |
| #include <algorithm> |
| |
| #include <cerrno> |
| #include <cstring> |
| #include <ios> |
| #include <iostream> |
| |
| #include <iconv.h> |
| |
| #include "config.h" |
| |
| namespace |
| { |
| |
| struct MiniIconv |
| { |
| MiniIconv(const char *to_code, const char *from_code) |
| : i_(iconv_open(to_code, from_code)) |
| {} |
| ~MiniIconv() |
| { if (is_valid()) iconv_close(i_); } |
| MiniIconv(const MiniIconv &) = delete; |
| MiniIconv& operator=(const MiniIconv &) = delete; |
| bool is_valid() const |
| { return i_ != (iconv_t)-1; } |
| operator iconv_t() const |
| { return i_; } |
| iconv_t i_; |
| }; |
| |
| } |
| |
| using namespace poppler; |
| |
| /** |
| \namespace poppler |
| |
| Single namespace containing all the classes and functions of poppler-cpp. |
| */ |
| |
| /** |
| \class poppler::noncopyable |
| |
| A class that cannot be copied. |
| */ |
| |
| /** |
| \enum poppler::rotation_enum |
| |
| The case sensitivity. |
| */ |
| /** |
| \var poppler::rotation_enum poppler::rotate_0 |
| |
| A rotation of 0 degrees clockwise. |
| */ |
| /** |
| \var poppler::rotation_enum poppler::rotate_90 |
| |
| A rotation of 90 degrees clockwise. |
| */ |
| /** |
| \var poppler::rotation_enum poppler::rotate_180 |
| |
| A rotation of 180 degrees clockwise. |
| */ |
| /** |
| \var poppler::rotation_enum poppler::rotate_270 |
| |
| A rotation of 270 degrees clockwise. |
| */ |
| |
| /** |
| \enum poppler::page_box_enum |
| |
| A possible box of a page in a PDF %document. |
| */ |
| /** |
| \var poppler::page_box_enum poppler::media_box |
| |
| The "media" box. |
| */ |
| /** |
| \var poppler::page_box_enum poppler::crop_box |
| |
| The "crop" box. |
| */ |
| /** |
| \var poppler::page_box_enum poppler::bleed_box |
| |
| The "bleed" box. |
| */ |
| /** |
| \var poppler::page_box_enum poppler::trim_box |
| |
| The "trim" box. |
| */ |
| /** |
| \var poppler::page_box_enum poppler::art_box |
| |
| The "art" box. |
| */ |
| |
| /** |
| \enum poppler::permission_enum |
| |
| A possible permission in a PDF %document. |
| */ |
| /** |
| \var poppler::permission_enum poppler::perm_print |
| |
| The permission to allow the print of a %document. |
| */ |
| /** |
| \var poppler::permission_enum poppler::perm_change |
| |
| The permission to change a %document. |
| |
| This is a generic "change" permission, so other permissions could affect |
| some types of changes. |
| */ |
| /** |
| \var poppler::permission_enum poppler::perm_copy |
| |
| The permission to allow the copy or extraction of the text in a %document. |
| */ |
| /** |
| \var poppler::permission_enum poppler::perm_add_notes |
| |
| The permission to allow the addition or editing of annotations, |
| and the filling of interactive form fields (including signature fields). |
| */ |
| /** |
| \var poppler::permission_enum poppler::perm_fill_forms |
| |
| The permission to allow the filling of interactive form fields |
| (including signature fields). |
| |
| \note this permission can be set even when the \ref poppler::perm_add_notes "perm_add_notes" |
| is not: this means that only the filling of forms is allowed. |
| */ |
| /** |
| \var poppler::permission_enum poppler::perm_accessibility |
| |
| The permission to allow the extracting of content (for example, text) for |
| accessibility usage (e.g. for a screen reader). |
| */ |
| /** |
| \var poppler::permission_enum poppler::perm_assemble |
| |
| The permission to allow to "assemble" a %document. |
| |
| This implies operations such as the insertion, the rotation and the deletion |
| of pages; the creation of bookmarks and thumbnail images. |
| |
| \note this permission can be set even when the \ref poppler::perm_change "perm_change" |
| is not |
| */ |
| /** |
| \var poppler::permission_enum poppler::perm_print_high_resolution |
| |
| The permission to allow the high resolution print of a %document. |
| */ |
| |
| /** |
| \enum poppler::case_sensitivity_enum |
| |
| The case sensitivity. |
| */ |
| |
| |
| noncopyable::noncopyable() |
| { |
| } |
| |
| noncopyable::~noncopyable() |
| { |
| } |
| |
| |
| ustring::ustring() |
| { |
| } |
| |
| ustring::ustring(size_type len, value_type ch) |
| : std::basic_string<value_type>(len, ch) |
| { |
| } |
| |
| ustring::~ustring() |
| { |
| } |
| |
| byte_array ustring::to_utf8() const |
| { |
| if (!size()) { |
| return byte_array(); |
| } |
| |
| #ifdef WORDS_BIGENDIAN |
| MiniIconv ic("UTF-8", "UTF-16BE"); |
| #else |
| MiniIconv ic("UTF-8", "UTF-16LE"); |
| #endif |
| if (!ic.is_valid()) { |
| return byte_array(); |
| } |
| const value_type *me_data = data(); |
| byte_array str(size()*sizeof(value_type)); |
| char *str_data = &str[0]; |
| size_t me_len_char = size()*sizeof(value_type); |
| size_t str_len_left = str.size(); |
| size_t ir = iconv(ic, (ICONV_CONST char **)&me_data, &me_len_char, &str_data, &str_len_left); |
| if ((ir == (size_t)-1) && (errno == E2BIG)) { |
| const size_t delta = str_data - &str[0]; |
| str_len_left += str.size(); |
| str.resize(str.size() * 2); |
| str_data = &str[delta]; |
| ir = iconv(ic, (ICONV_CONST char **)&me_data, &me_len_char, &str_data, &str_len_left); |
| if (ir == (size_t)-1) { |
| return byte_array(); |
| } |
| } |
| str.resize(str.size() - str_len_left); |
| return str; |
| } |
| |
| std::string ustring::to_latin1() const |
| { |
| if (!size()) { |
| return std::string(); |
| } |
| |
| const size_type mylength = size(); |
| std::string ret(mylength, '\0'); |
| const value_type *me = data(); |
| for (size_type i = 0; i < mylength; ++i) { |
| ret[i] = (char)*me++; |
| } |
| return ret; |
| } |
| |
| ustring ustring::from_utf8(const char *str, int len) |
| { |
| if (len <= 0) { |
| len = std::strlen(str); |
| if (len <= 0) { |
| return ustring(); |
| } |
| } |
| |
| #ifdef WORDS_BIGENDIAN |
| MiniIconv ic("UTF-16BE", "UTF-8"); |
| #else |
| MiniIconv ic("UTF-16LE", "UTF-8"); |
| #endif |
| if (!ic.is_valid()) { |
| return ustring(); |
| } |
| |
| // +1, because iconv inserts byte order marks |
| ustring ret(len+1, 0); |
| char *ret_data = reinterpret_cast<char *>(&ret[0]); |
| char *str_data = const_cast<char *>(str); |
| size_t str_len_char = len; |
| size_t ret_len_left = ret.size() * sizeof(ustring::value_type); |
| size_t ir = iconv(ic, (ICONV_CONST char **)&str_data, &str_len_char, &ret_data, &ret_len_left); |
| if ((ir == (size_t)-1) && (errno == E2BIG)) { |
| const size_t delta = ret_data - reinterpret_cast<char *>(&ret[0]); |
| ret_len_left += ret.size()*sizeof(ustring::value_type); |
| ret.resize(ret.size() * 2); |
| ret_data = reinterpret_cast<char *>(&ret[0]) + delta; |
| ir = iconv(ic, (ICONV_CONST char **)&str_data, &str_len_char, &ret_data, &ret_len_left); |
| if (ir == (size_t)-1) { |
| return ustring(); |
| } |
| } |
| ret.resize(ret.size() - ret_len_left/sizeof(ustring::value_type)); |
| |
| return ret; |
| } |
| |
| ustring ustring::from_latin1(const std::string &str) |
| { |
| const size_type l = str.size(); |
| if (!l) { |
| return ustring(); |
| } |
| const char *c = str.data(); |
| ustring ret(l, 0); |
| for (size_type i = 0; i < l; ++i) { |
| ret[i] = *c++; |
| } |
| return ret; |
| } |
| |
| |
| /** |
| Converts a string representing a PDF date to a value compatible with time_t. |
| */ |
| time_type poppler::convert_date(const std::string &date) |
| { |
| GooString gooDateStr(date.c_str()); |
| return dateStringToTime(&gooDateStr); |
| } |
| |
| std::ostream& poppler::operator<<(std::ostream& stream, const byte_array &array) |
| { |
| stream << "["; |
| const std::ios_base::fmtflags f = stream.flags(); |
| std::hex(stream); |
| const char *data = &array[0]; |
| const byte_array::size_type out_len = std::min<byte_array::size_type>(array.size(), 50); |
| for (byte_array::size_type i = 0; i < out_len; ++i) |
| { |
| if (i != 0) { |
| stream << " "; |
| } |
| stream << ((data[i] & 0xf0) >> 4) << (data[i] & 0xf); |
| } |
| stream.flags(f); |
| if (out_len < array.size()) { |
| stream << " ..."; |
| } |
| stream << "]"; |
| return stream; |
| } |
| |
| /** |
| * Sets a custom data directory for initialization of global parameters |
| * |
| * If no instances of \see document currently exist, this will save the |
| * given path as a custom data directory to be used when the first instance |
| * of the \see document is constructed. |
| * |
| * \returns true on success, false on failure |
| * |
| * \since 0.73.0 |
| */ |
| bool poppler::set_data_dir(const std::string &new_data_dir) |
| { |
| return initer::set_data_dir(new_data_dir); |
| } |
| |
| /** |
| \typedef poppler::debug_func |
| |
| Debug/error function. |
| |
| This function type is used for debugging & error output; |
| the first parameter is the actual message, the second is the unaltered |
| closure argument which was passed to the set_debug_error_function() call. |
| |
| \since 0.30.0 |
| */ |
| |
| /** |
| Set a new debug/error output function. |
| |
| If not set, by default error and debug messages will be sent to stderr. |
| |
| \param debug_function the new debug function |
| \param closure user data which will be passed as-is to the debug function |
| |
| \since 0.30.0 |
| */ |
| void poppler::set_debug_error_function(debug_func debug_function, void *closure) |
| { |
| poppler::detail::user_debug_function = debug_function; |
| poppler::detail::debug_closure = closure; |
| } |