419 lines
9.2 KiB
C++
419 lines
9.2 KiB
C++
/***************************************************************************
|
|
* Copyright (C) 2008-2012 by Andrzej Rybczak *
|
|
* electricityispower@gmail.com *
|
|
* *
|
|
* 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 of the License, 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 St, Fifth Floor, Boston, MA 02110-1301, USA. *
|
|
***************************************************************************/
|
|
|
|
#include <cassert>
|
|
#include <cstring>
|
|
#include <boost/format.hpp>
|
|
#include <boost/lexical_cast.hpp>
|
|
#include <iostream>
|
|
#include <memory>
|
|
|
|
#include "song.h"
|
|
#include "utility/type_conversions.h"
|
|
#include "utility/wide_string.h"
|
|
#include "window.h"
|
|
|
|
namespace {//
|
|
|
|
size_t calc_hash(const char* s, unsigned seed = 0)
|
|
{
|
|
size_t hash = seed;
|
|
while (*s)
|
|
hash = hash * 101 + *s++;
|
|
return hash;
|
|
}
|
|
|
|
}
|
|
|
|
namespace MPD {//
|
|
|
|
std::string Song::get(mpd_tag_type type, unsigned idx) const
|
|
{
|
|
std::string result;
|
|
const char *tag = mpd_song_get_tag(m_song.get(), type, idx);
|
|
if (tag)
|
|
result = tag;
|
|
return result;
|
|
}
|
|
|
|
Song::Song(mpd_song *s)
|
|
{
|
|
assert(s);
|
|
m_song = std::shared_ptr<mpd_song>(s, mpd_song_free);
|
|
m_hash = calc_hash(mpd_song_get_uri(s));
|
|
}
|
|
|
|
std::string Song::getURI(unsigned idx) const
|
|
{
|
|
assert(m_song);
|
|
if (idx > 0)
|
|
return "";
|
|
else
|
|
return mpd_song_get_uri(m_song.get());
|
|
}
|
|
|
|
std::string Song::getName(unsigned idx) const
|
|
{
|
|
assert(m_song);
|
|
mpd_song *s = m_song.get();
|
|
const char *res = mpd_song_get_tag(s, MPD_TAG_NAME, idx);
|
|
if (!res && idx > 0)
|
|
return "";
|
|
const char *uri = mpd_song_get_uri(s);
|
|
const char *name = strrchr(uri, '/');
|
|
if (name)
|
|
return name+1;
|
|
else
|
|
return uri;
|
|
}
|
|
|
|
std::string Song::getDirectory(unsigned idx) const
|
|
{
|
|
assert(m_song);
|
|
if (idx > 0 || isStream())
|
|
return "";
|
|
const char *uri = mpd_song_get_uri(m_song.get());
|
|
const char *name = strrchr(uri, '/');
|
|
if (name)
|
|
return std::string(uri, name-uri);
|
|
else
|
|
return "/";
|
|
}
|
|
|
|
std::string Song::getArtist(unsigned idx) const
|
|
{
|
|
assert(m_song);
|
|
return get(MPD_TAG_ARTIST, idx);
|
|
}
|
|
|
|
std::string Song::getTitle(unsigned idx) const
|
|
{
|
|
assert(m_song);
|
|
return get(MPD_TAG_TITLE, idx);
|
|
}
|
|
|
|
std::string Song::getAlbum(unsigned idx) const
|
|
{
|
|
assert(m_song);
|
|
return get(MPD_TAG_ALBUM, idx);
|
|
}
|
|
|
|
std::string Song::getAlbumArtist(unsigned idx) const
|
|
{
|
|
assert(m_song);
|
|
return get(MPD_TAG_ALBUM_ARTIST, idx);
|
|
}
|
|
|
|
std::string Song::getTrack(unsigned idx) const
|
|
{
|
|
assert(m_song);
|
|
std::string track = get(MPD_TAG_TRACK, idx);
|
|
if ((track.length() == 1 && track[0] != '0')
|
|
|| (track.length() > 3 && track[1] == '/'))
|
|
track = "0"+track;
|
|
return track;
|
|
}
|
|
|
|
std::string Song::getTrackNumber(unsigned idx) const
|
|
{
|
|
assert(m_song);
|
|
std::string track = getTrack(idx);
|
|
size_t slash = track.find('/');
|
|
if (slash != std::string::npos)
|
|
track.resize(slash);
|
|
return track;
|
|
}
|
|
|
|
std::string Song::getDate(unsigned idx) const
|
|
{
|
|
assert(m_song);
|
|
return get(MPD_TAG_DATE, idx);
|
|
}
|
|
|
|
std::string Song::getGenre(unsigned idx) const
|
|
{
|
|
assert(m_song);
|
|
return get(MPD_TAG_GENRE, idx);
|
|
}
|
|
|
|
std::string Song::getComposer(unsigned idx) const
|
|
{
|
|
assert(m_song);
|
|
return get(MPD_TAG_COMPOSER, idx);
|
|
}
|
|
|
|
std::string Song::getPerformer(unsigned idx) const
|
|
{
|
|
assert(m_song);
|
|
return get(MPD_TAG_PERFORMER, idx);
|
|
}
|
|
|
|
std::string Song::getDisc(unsigned idx) const
|
|
{
|
|
assert(m_song);
|
|
return get(MPD_TAG_DISC, idx);
|
|
}
|
|
|
|
std::string Song::getComment(unsigned idx) const
|
|
{
|
|
assert(m_song);
|
|
return get(MPD_TAG_COMMENT, idx);
|
|
}
|
|
|
|
std::string Song::getLength(unsigned idx) const
|
|
{
|
|
assert(m_song);
|
|
if (idx > 0)
|
|
return "";
|
|
unsigned len = getDuration();
|
|
if (len > 0)
|
|
return ShowTime(len);
|
|
else
|
|
return "-:--";
|
|
}
|
|
|
|
std::string Song::getPriority(unsigned idx) const
|
|
{
|
|
assert(m_song);
|
|
if (idx > 0)
|
|
return "";
|
|
return boost::lexical_cast<std::string>(getPrio());
|
|
}
|
|
|
|
std::string MPD::Song::getTags(GetFunction f, const std::string &tags_separator) const
|
|
{
|
|
assert(m_song);
|
|
unsigned idx = 0;
|
|
std::string result;
|
|
for (std::string tag; !(tag = (this->*f)(idx)).empty(); ++idx)
|
|
{
|
|
if (!result.empty())
|
|
result += tags_separator;
|
|
result += tag;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
unsigned Song::getHash() const
|
|
{
|
|
assert(m_song);
|
|
return m_hash;
|
|
}
|
|
|
|
unsigned Song::getDuration() const
|
|
{
|
|
assert(m_song);
|
|
return mpd_song_get_duration(m_song.get());
|
|
}
|
|
|
|
unsigned Song::getPosition() const
|
|
{
|
|
assert(m_song);
|
|
return mpd_song_get_pos(m_song.get());
|
|
}
|
|
|
|
unsigned Song::getID() const
|
|
{
|
|
assert(m_song);
|
|
return mpd_song_get_id(m_song.get());
|
|
}
|
|
|
|
unsigned Song::getPrio() const
|
|
{
|
|
assert(m_song);
|
|
return mpd_song_get_prio(m_song.get());
|
|
}
|
|
|
|
time_t Song::getMTime() const
|
|
{
|
|
assert(m_song);
|
|
return mpd_song_get_last_modified(m_song.get());
|
|
}
|
|
|
|
bool Song::isFromDatabase() const
|
|
{
|
|
assert(m_song);
|
|
const char *uri = mpd_song_get_uri(m_song.get());
|
|
return uri[0] != '/' || !strrchr(uri, '/');
|
|
}
|
|
|
|
bool Song::isStream() const
|
|
{
|
|
assert(m_song);
|
|
return !strncmp(mpd_song_get_uri(m_song.get()), "http://", 7);
|
|
}
|
|
|
|
bool Song::empty() const
|
|
{
|
|
return m_song.get() == 0;
|
|
}
|
|
|
|
std::string Song::toString(const std::string &fmt, const std::string &tags_separator, const std::string &escape_chars) const
|
|
{
|
|
assert(m_song);
|
|
std::string::const_iterator it = fmt.begin();
|
|
return ParseFormat(it, tags_separator, escape_chars);
|
|
}
|
|
|
|
std::string Song::ShowTime(unsigned length)
|
|
{
|
|
int hours = length/3600;
|
|
length -= hours*3600;
|
|
int minutes = length/60;
|
|
length -= minutes*60;
|
|
int seconds = length;
|
|
|
|
std::string result;
|
|
if (hours > 0)
|
|
result = (boost::format("%d:%02d:%02d") % hours % minutes % seconds).str();
|
|
else
|
|
result = (boost::format("%d:%02d") % minutes % seconds).str();
|
|
return result;
|
|
}
|
|
|
|
bool MPD::Song::isFormatOk(const std::string &type, const std::string &fmt)
|
|
{
|
|
int braces = 0;
|
|
for (std::string::const_iterator it = fmt.begin(); it != fmt.end(); ++it)
|
|
{
|
|
if (*it == '{')
|
|
++braces;
|
|
else if (*it == '}')
|
|
--braces;
|
|
}
|
|
if (braces)
|
|
{
|
|
std::cerr << type << ": number of opening and closing braces does not equal\n";
|
|
return false;
|
|
}
|
|
|
|
for (size_t i = fmt.find('%'); i != std::string::npos; i = fmt.find('%', i))
|
|
{
|
|
if (isdigit(fmt[++i]))
|
|
while (isdigit(fmt[++i])) { }
|
|
if (!charToGetFunction(fmt[i]))
|
|
{
|
|
std::cerr << type << ": invalid character at position " << boost::lexical_cast<std::string>(i+1) << ": '" << fmt[i] << "'\n";
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
std::string Song::ParseFormat(std::string::const_iterator &it, const std::string &tags_separator,
|
|
const std::string &escape_chars) const
|
|
{
|
|
std::string result;
|
|
bool has_some_tags = 0;
|
|
MPD::Song::GetFunction get_fun = 0;
|
|
while (*++it != '}')
|
|
{
|
|
while (*it == '{')
|
|
{
|
|
std::string tags = ParseFormat(it, tags_separator, escape_chars);
|
|
if (!tags.empty())
|
|
{
|
|
has_some_tags = 1;
|
|
result += tags;
|
|
}
|
|
}
|
|
if (*it == '}')
|
|
break;
|
|
|
|
if (*it == '%')
|
|
{
|
|
size_t delimiter = 0;
|
|
if (isdigit(*++it))
|
|
{
|
|
delimiter = atol(&*it);
|
|
while (isdigit(*++it)) { }
|
|
}
|
|
|
|
if (*it == '%')
|
|
{
|
|
result += *it;
|
|
get_fun = 0;
|
|
}
|
|
else
|
|
get_fun = charToGetFunction(*it);
|
|
|
|
if (get_fun)
|
|
{
|
|
std::string tag = getTags(get_fun, tags_separator);
|
|
if (!escape_chars.empty()) // prepend format escape character to all given chars to escape
|
|
{
|
|
for (size_t i = 0; i < escape_chars.length(); ++i)
|
|
for (size_t j = 0; (j = tag.find(escape_chars[i], j)) != std::string::npos; j += 2)
|
|
tag.replace(j, 1, std::string(1, FormatEscapeCharacter) + escape_chars[i]);
|
|
}
|
|
if (!tag.empty() && (get_fun != &MPD::Song::getLength || getDuration() > 0))
|
|
{
|
|
if (delimiter && tag.size() > delimiter)
|
|
{
|
|
// Shorten length string by just chopping off the tail
|
|
if (get_fun == &MPD::Song::getLength)
|
|
tag = tag.substr(0, delimiter);
|
|
else
|
|
tag = ToString(wideShorten(ToWString(tag), delimiter));
|
|
}
|
|
has_some_tags = 1;
|
|
result += tag;
|
|
}
|
|
else
|
|
break;
|
|
}
|
|
}
|
|
else
|
|
result += *it;
|
|
}
|
|
int brace_counter = 0;
|
|
if (*it != '}' || !has_some_tags)
|
|
{
|
|
for (; *it != '}' || brace_counter; ++it)
|
|
{
|
|
if (*it == '{')
|
|
++brace_counter;
|
|
else if (*it == '}')
|
|
--brace_counter;
|
|
}
|
|
if (*++it == '|')
|
|
return ParseFormat(++it, tags_separator, escape_chars);
|
|
else
|
|
return "";
|
|
}
|
|
else
|
|
{
|
|
if (*(it+1) == '|')
|
|
{
|
|
for (; *it != '}' || *(it+1) == '|' || brace_counter; ++it)
|
|
{
|
|
if (*it == '{')
|
|
++brace_counter;
|
|
else if (*it == '}')
|
|
--brace_counter;
|
|
}
|
|
}
|
|
++it;
|
|
return result;
|
|
}
|
|
}
|
|
|
|
}
|