2 Copyright (C) 2012-2014 Carl Hetherington <cth@carlh.net>
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24 * @brief Utility methods.
28 #include <boost/shared_ptr.hpp>
29 #include <boost/function.hpp>
30 #include <boost/date_time/posix_time/posix_time.hpp>
31 #include <boost/filesystem.hpp>
32 #include <boost/optional.hpp>
44 class CertificateChain;
60 float ratio () const {
61 return float (width) / height;
68 extern bool operator== (Size const & a, Size const & b);
69 extern bool operator!= (Size const & a, Size const & b);
71 extern std::string make_uuid ();
72 extern std::string make_digest (boost::filesystem::path filename, boost::function<void (float)> *);
73 extern std::string content_kind_to_string (ContentKind kind);
74 extern ContentKind content_kind_from_string (std::string kind);
75 extern bool empty_or_white_space (std::string s);
76 extern boost::shared_ptr<XYZFrame> decompress_j2k (uint8_t* data, int64_t size, int reduce);
80 extern void sign (xmlpp::Element* parent, CertificateChain const & certificates, boost::filesystem::path signer_key, Standard standard);
81 extern void add_signature_value (xmlpp::Element* parent, CertificateChain const & certificates, boost::filesystem::path signer_key, std::string const & ns);
82 extern void add_signer (xmlpp::Element* parent, CertificateChain const & certificates, std::string const & ns);
84 extern int base64_decode (std::string const & in, unsigned char* out, int out_length);
85 extern boost::optional<boost::filesystem::path> relative_to_root (boost::filesystem::path root, boost::filesystem::path file);
86 extern std::string tm_to_string (struct tm *);
87 extern std::string utc_offset_to_string (int);
88 extern std::string ptime_to_string (boost::posix_time::ptime);
89 extern FILE * fopen_boost (boost::filesystem::path, std::string);
91 template <class F, class T>
92 std::list<boost::shared_ptr<T> >
93 list_of_type (std::list<boost::shared_ptr<F> > const & from)
95 std::list<boost::shared_ptr<T> > out;
96 for (typename std::list<boost::shared_ptr<F> >::const_iterator i = from.begin(); i != from.end(); ++i) {
97 boost::shared_ptr<T> check = boost::dynamic_pointer_cast<T> (*i);
99 out.push_back (check);