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strawberry-audio-player-win.../3rdparty/taglib/tagunion.cpp
2018-05-10 15:29:28 +02:00

249 lines
7.1 KiB
C++

/***************************************************************************
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 <tagunion.h>
#include <tstringlist.h>
#include <tpropertymap.h>
#include "id3v1tag.h"
#include "id3v2tag.h"
#include "apetag.h"
#include "xiphcomment.h"
#include "infotag.h"
using namespace TagLib;
#define stringUnion(method) \
if(tag(0) && !tag(0)->method().isEmpty()) \
return tag(0)->method(); \
if(tag(1) && !tag(1)->method().isEmpty()) \
return tag(1)->method(); \
if(tag(2) && !tag(2)->method().isEmpty()) \
return tag(2)->method(); \
return String(); \
#define numberUnion(method) \
if(tag(0) && tag(0)->method() > 0) \
return tag(0)->method(); \
if(tag(1) && tag(1)->method() > 0) \
return tag(1)->method(); \
if(tag(2) && tag(2)->method() > 0) \
return tag(2)->method(); \
return 0
#define setUnion(method, value) \
if(tag(0)) \
tag(0)->set##method(value); \
if(tag(1)) \
tag(1)->set##method(value); \
if(tag(2)) \
tag(2)->set##method(value); \
class TagUnion::TagUnionPrivate
{
public:
TagUnionPrivate() : tags(3, static_cast<Tag *>(0))
{
}
~TagUnionPrivate()
{
delete tags[0];
delete tags[1];
delete tags[2];
}
std::vector<Tag *> tags;
};
TagUnion::TagUnion(Tag *first, Tag *second, Tag *third) :
d(new TagUnionPrivate())
{
d->tags[0] = first;
d->tags[1] = second;
d->tags[2] = third;
}
TagUnion::~TagUnion()
{
delete d;
}
Tag *TagUnion::operator[](int index) const
{
return tag(index);
}
Tag *TagUnion::tag(int index) const
{
return d->tags[index];
}
void TagUnion::set(int index, Tag *tag)
{
delete d->tags[index];
d->tags[index] = tag;
}
PropertyMap TagUnion::properties() const
{
// This is an ugly workaround but we can't add a virtual function.
// Should be virtual in taglib2.
for(size_t i = 0; i < 3; ++i) {
if(d->tags[i] && !d->tags[i]->isEmpty()) {
if(dynamic_cast<const ID3v1::Tag *>(d->tags[i]))
return dynamic_cast<const ID3v1::Tag *>(d->tags[i])->properties();
else if(dynamic_cast<const ID3v2::Tag *>(d->tags[i]))
return dynamic_cast<const ID3v2::Tag *>(d->tags[i])->properties();
else if(dynamic_cast<const APE::Tag *>(d->tags[i]))
return dynamic_cast<const APE::Tag *>(d->tags[i])->properties();
else if(dynamic_cast<const Ogg::XiphComment *>(d->tags[i]))
return dynamic_cast<const Ogg::XiphComment *>(d->tags[i])->properties();
else if(dynamic_cast<const RIFF::Info::Tag *>(d->tags[i]))
return dynamic_cast<const RIFF::Info::Tag *>(d->tags[i])->properties();
}
}
return PropertyMap();
}
void TagUnion::removeUnsupportedProperties(const StringList &unsupported)
{
// This is an ugly workaround but we can't add a virtual function.
// Should be virtual in taglib2.
for(size_t i = 0; i < 3; ++i) {
if(d->tags[i]) {
if(dynamic_cast<ID3v1::Tag *>(d->tags[i]))
dynamic_cast<ID3v1::Tag *>(d->tags[i])->removeUnsupportedProperties(unsupported);
else if(dynamic_cast<ID3v2::Tag *>(d->tags[i]))
dynamic_cast<ID3v2::Tag *>(d->tags[i])->removeUnsupportedProperties(unsupported);
else if(dynamic_cast<APE::Tag *>(d->tags[i]))
dynamic_cast<APE::Tag *>(d->tags[i])->removeUnsupportedProperties(unsupported);
else if(dynamic_cast<Ogg::XiphComment *>(d->tags[i]))
dynamic_cast<Ogg::XiphComment *>(d->tags[i])->removeUnsupportedProperties(unsupported);
else if(dynamic_cast<RIFF::Info::Tag *>(d->tags[i]))
dynamic_cast<RIFF::Info::Tag *>(d->tags[i])->removeUnsupportedProperties(unsupported);
}
}
}
String TagUnion::title() const
{
stringUnion(title);
}
String TagUnion::artist() const
{
stringUnion(artist);
}
String TagUnion::album() const
{
stringUnion(album);
}
String TagUnion::comment() const
{
stringUnion(comment);
}
String TagUnion::genre() const
{
stringUnion(genre);
}
unsigned int TagUnion::year() const
{
numberUnion(year);
}
unsigned int TagUnion::track() const
{
numberUnion(track);
}
void TagUnion::setTitle(const String &s)
{
setUnion(Title, s);
}
void TagUnion::setArtist(const String &s)
{
setUnion(Artist, s);
}
void TagUnion::setAlbum(const String &s)
{
setUnion(Album, s);
}
void TagUnion::setComment(const String &s)
{
setUnion(Comment, s);
}
void TagUnion::setGenre(const String &s)
{
setUnion(Genre, s);
}
void TagUnion::setYear(unsigned int i)
{
setUnion(Year, i);
}
void TagUnion::setTrack(unsigned int i)
{
setUnion(Track, i);
}
bool TagUnion::isEmpty() const
{
if(d->tags[0] && !d->tags[0]->isEmpty())
return false;
if(d->tags[1] && !d->tags[1]->isEmpty())
return false;
if(d->tags[2] && !d->tags[2]->isEmpty())
return false;
return true;
}