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/***************************************************************************
copyright : (C) 2002 - 2008 by Scott Wheeler
email : wheeler@kde.org
***************************************************************************/
/***************************************************************************
* This library is free software; you can redistribute it and/or modify *
* it under the terms of the GNU Lesser General Public License version *
* 2.1 as published by the Free Software Foundation. *
* *
* This library 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 *
* Lesser General Public License for more details. *
* *
* You should have received a copy of the GNU Lesser General Public *
* License along with this library; if not, write to the Free Software *
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA *
* 02110-1301 USA *
* *
* Alternatively, this file is available under the Mozilla Public *
* License Version 1.1. You may obtain a copy of the License at *
* http://www.mozilla.org/MPL/ *
***************************************************************************/
#include "tag.h"
#include <utility>
#include "tstringlist.h"
#include "tpropertymap.h"
using namespace TagLib;
class Tag::TagPrivate
{
};
Tag::Tag() = default;
Tag::~Tag() = default;
bool Tag::isEmpty() const
{
return title().isEmpty() &&
artist().isEmpty() &&
album().isEmpty() &&
comment().isEmpty() &&
genre().isEmpty() &&
year() == 0 &&
track() == 0;
}
PropertyMap Tag::properties() const
{
PropertyMap map;
if(!title().isEmpty())
map["TITLE"].append(title());
if(!artist().isEmpty())
map["ARTIST"].append(artist());
if(!album().isEmpty())
map["ALBUM"].append(album());
if(!comment().isEmpty())
map["COMMENT"].append(comment());
if(!genre().isEmpty())
map["GENRE"].append(genre());
if(year() != 0)
map["DATE"].append(String::number(year()));
if(track() != 0)
map["TRACKNUMBER"].append(String::number(track()));
return map;
}
void Tag::removeUnsupportedProperties(const StringList&)
{
}
PropertyMap Tag::setProperties(const PropertyMap &origProps)
{
PropertyMap props(origProps);
props.removeEmpty();
StringList oneValueSet;
// can this be simplified by using some preprocessor defines / function pointers?
if(props.contains("TITLE")) {
setTitle(props["TITLE"].front());
oneValueSet.append("TITLE");
} else
setTitle(String());
if(props.contains("ARTIST")) {
setArtist(props["ARTIST"].front());
oneValueSet.append("ARTIST");
} else
setArtist(String());
if(props.contains("ALBUM")) {
setAlbum(props["ALBUM"].front());
oneValueSet.append("ALBUM");
} else
setAlbum(String());
if(props.contains("COMMENT")) {
setComment(props["COMMENT"].front());
oneValueSet.append("COMMENT");
} else
setComment(String());
if(props.contains("GENRE")) {
setGenre(props["GENRE"].front());
oneValueSet.append("GENRE");
} else
setGenre(String());
if(props.contains("DATE")) {
bool ok;
int date = props["DATE"].front().toInt(&ok);
if(ok) {
setYear(date);
oneValueSet.append("DATE");
} else
setYear(0);
}
else
setYear(0);
if(props.contains("TRACKNUMBER")) {
bool ok;
int trackNumber = props["TRACKNUMBER"].front().toInt(&ok);
if(ok) {
setTrack(trackNumber);
oneValueSet.append("TRACKNUMBER");
} else
setTrack(0);
}
else
setTrack(0);
// for each tag that has been set above, remove the first entry in the corresponding
// value list. The others will be returned as unsupported by this format.
for(const auto &entry : std::as_const(oneValueSet)) {
if(props[entry].size() == 1)
props.erase(entry);
else
props[entry].erase(props[entry].begin());
}
return props;
}
StringList Tag::complexPropertyKeys() const
{
return StringList();
}
List<VariantMap> Tag::complexProperties(const String &) const
{
return {};
}
bool Tag::setComplexProperties(const String &, const List<VariantMap> &)
{
return false;
}
void Tag::duplicate(const Tag *source, Tag *target, bool overwrite) // static
{
if(overwrite) {
target->setTitle(source->title());
target->setArtist(source->artist());
target->setAlbum(source->album());
target->setComment(source->comment());
target->setGenre(source->genre());
target->setYear(source->year());
target->setTrack(source->track());
}
else {
if(target->title().isEmpty())
target->setTitle(source->title());
if(target->artist().isEmpty())
target->setArtist(source->artist());
if(target->album().isEmpty())
target->setAlbum(source->album());
if(target->comment().isEmpty())
target->setComment(source->comment());
if(target->genre().isEmpty())
target->setGenre(source->genre());
if(target->year() == 0)
target->setYear(source->year());
if(target->track() == 0)
target->setTrack(source->track());
}
}
String Tag::joinTagValues(const StringList &values)
{
return values.toString(" / ");
}
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