2020-06-26 23:30:30 +02:00
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/***************************************************************************
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2018-05-10 15:29:28 +02:00
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copyright : (C) 2002 - 2008 by Scott Wheeler
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email : wheeler@kde.org
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***************************************************************************/
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/***************************************************************************
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* This library is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU Lesser General Public License version *
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* 2.1 as published by the Free Software Foundation. *
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* *
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* This library is distributed in the hope that it will be useful, but *
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* WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
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* Lesser General Public License for more details. *
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* *
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* You should have received a copy of the GNU Lesser General Public *
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* License along with this library; if not, write to the Free Software *
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA *
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* 02110-1301 USA *
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* *
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* Alternatively, this file is available under the Mozilla Public *
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* License Version 1.1. You may obtain a copy of the License at *
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* http://www.mozilla.org/MPL/ *
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***************************************************************************/
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2020-06-26 23:30:30 +02:00
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#include <memory>
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2018-05-10 15:29:28 +02:00
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#include <tagunion.h>
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#include <tstringlist.h>
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#include <tpropertymap.h>
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2020-06-26 23:30:30 +02:00
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#include <tpicturemap.h>
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#define stringUnion(method) \
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for (size_t j = 0; j < COUNT; ++j) { \
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String val = d->tags[j] ? d->tags[j]->method() : String(); \
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if (!val.isEmpty()) \
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return val; \
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} \
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2020-06-13 19:02:42 +02:00
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return String();
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2020-06-26 23:30:30 +02:00
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#define numberUnion(method) \
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for (size_t j = 0; j < COUNT; ++j) { \
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unsigned int val = d->tags[j] ? d->tags[j]->method() : 0; \
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if (val > 0) \
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return val; \
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} \
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return 0;
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#define pictureMapUnion(method) \
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for (size_t j = 0; j < COUNT; ++j) { \
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PictureMap val = d->tags[j] ? d->tags[j]->method() : PictureMap(); \
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if (!val.isEmpty()) \
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return val; \
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} \
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return PictureMap();
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#define setUnion(method, value) \
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for (size_t j = 0; j < COUNT; ++j) { \
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if (d->tags[j]) \
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d->tags[j]->set##method(value); \
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2018-05-10 15:29:28 +02:00
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}
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2020-06-26 23:30:30 +02:00
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namespace Strawberry_TagLib {
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namespace TagLib {
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template<size_t COUNT>
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class TagUnion<COUNT>::TagUnionPrivate {
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public:
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std::unique_ptr<Tag> tags[COUNT];
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2018-05-10 15:29:28 +02:00
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};
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2020-06-26 23:30:30 +02:00
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template<size_t COUNT>
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TagUnion<COUNT>::TagUnion() : d(new TagUnionPrivate()) {}
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2020-06-26 23:30:30 +02:00
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template<size_t COUNT>
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TagUnion<COUNT>::~TagUnion() {
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2018-05-10 15:29:28 +02:00
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delete d;
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}
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2020-06-26 23:30:30 +02:00
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template<size_t COUNT>
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Tag *TagUnion<COUNT>::operator[](size_t index) const {
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return tag(index);
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}
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2020-06-26 23:30:30 +02:00
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template<size_t COUNT>
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Tag *TagUnion<COUNT>::tag(size_t index) const {
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return d->tags[index].get();
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2018-05-10 15:29:28 +02:00
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}
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2020-06-26 23:30:30 +02:00
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template<size_t COUNT>
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void TagUnion<COUNT>::set(size_t index, Tag *tag) {
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d->tags[index].reset(tag);
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2018-05-10 15:29:28 +02:00
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}
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2020-06-26 23:30:30 +02:00
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template<size_t COUNT>
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PropertyMap TagUnion<COUNT>::properties() const {
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2020-06-26 23:30:30 +02:00
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for (size_t i = 0; i < COUNT; ++i) {
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if (d->tags[i] && !d->tags[i]->isEmpty())
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return d->tags[i]->properties();
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2018-05-10 15:29:28 +02:00
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}
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return PropertyMap();
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2020-06-14 17:01:05 +02:00
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2018-05-10 15:29:28 +02:00
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}
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2020-06-26 23:30:30 +02:00
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template<size_t COUNT>
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void TagUnion<COUNT>::removeUnsupportedProperties(const StringList &unsupported) {
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2020-06-14 17:01:05 +02:00
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2020-06-26 23:30:30 +02:00
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for (size_t i = 0; i < COUNT; ++i) {
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if (d->tags[i])
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d->tags[i]->removeUnsupportedProperties(unsupported);
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}
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2018-05-10 15:29:28 +02:00
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2020-06-26 23:30:30 +02:00
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}
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2018-05-10 15:29:28 +02:00
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2020-06-26 23:30:30 +02:00
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template<size_t COUNT>
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PropertyMap TagUnion<COUNT>::setProperties(const PropertyMap &properties) {
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2018-05-10 15:29:28 +02:00
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2020-06-26 23:30:30 +02:00
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// Record unassigned properties for each tag in the union
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std::vector<PropertyMap> returnCandidates;
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for (size_t i = 0; i < COUNT; ++i) {
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if (d->tags[i])
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returnCandidates.insert(returnCandidates.end(), d->tags[i]->setProperties(properties));
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}
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2018-05-10 15:29:28 +02:00
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2020-06-26 23:30:30 +02:00
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if (!returnCandidates.empty()) {
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// Only one tag present, return its unassigned properties
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if (returnCandidates.size() == 1) {
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return returnCandidates.front();
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}
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2018-05-10 15:29:28 +02:00
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2020-06-26 23:30:30 +02:00
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// Multiple tags in union:
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// if a property has been assigned in any member tag
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// remove it from ignored properties to return
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PropertyMap propertiesCopy(properties);
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for (std::vector<PropertyMap>::iterator i = returnCandidates.begin(); i != returnCandidates.end(); i++) {
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for (PropertyMap::Iterator j = propertiesCopy.begin(); j != propertiesCopy.end();) {
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if (!i->contains(j->first)) {
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j = propertiesCopy.erase(j->first).begin();
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}
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else {
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j++;
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}
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}
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2018-05-10 15:29:28 +02:00
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}
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}
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2020-06-14 17:01:05 +02:00
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2020-06-26 23:30:30 +02:00
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// No assignments made by union member tags.
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// Return input (this should not happen)
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return properties;
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2018-05-10 15:29:28 +02:00
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}
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2020-06-26 23:30:30 +02:00
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template<size_t COUNT>
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String TagUnion<COUNT>::title() const {
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stringUnion(title);
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}
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2020-06-26 23:30:30 +02:00
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template<size_t COUNT>
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String TagUnion<COUNT>::artist() const {
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stringUnion(artist);
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}
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2020-06-26 23:30:30 +02:00
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template<size_t COUNT>
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String TagUnion<COUNT>::album() const {
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stringUnion(album);
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}
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2020-06-26 23:30:30 +02:00
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template<size_t COUNT>
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String TagUnion<COUNT>::comment() const {
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stringUnion(comment);
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}
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2020-06-26 23:30:30 +02:00
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template<size_t COUNT>
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String TagUnion<COUNT>::genre() const {
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stringUnion(genre);
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}
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2020-06-26 23:30:30 +02:00
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template<size_t COUNT>
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unsigned int TagUnion<COUNT>::year() const {
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numberUnion(year);
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}
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2020-06-26 23:30:30 +02:00
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template<size_t COUNT>
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unsigned int TagUnion<COUNT>::track() const {
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numberUnion(track);
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}
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2020-06-26 23:30:30 +02:00
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template<size_t COUNT>
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void TagUnion<COUNT>::setTitle(const String &s) {
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setUnion(Title, s);
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}
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2020-06-26 23:30:30 +02:00
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template<size_t COUNT>
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void TagUnion<COUNT>::setArtist(const String &s) {
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setUnion(Artist, s);
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}
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2020-06-26 23:30:30 +02:00
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template<size_t COUNT>
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Strawberry_TagLib::TagLib::PictureMap TagUnion<COUNT>::pictures() const {
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pictureMapUnion(pictures);
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}
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template<size_t COUNT>
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void TagUnion<COUNT>::setAlbum(const String &s) {
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setUnion(Album, s);
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}
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2020-06-26 23:30:30 +02:00
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template<size_t COUNT>
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void TagUnion<COUNT>::setComment(const String &s) {
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setUnion(Comment, s);
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}
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2020-06-26 23:30:30 +02:00
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template<size_t COUNT>
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void TagUnion<COUNT>::setGenre(const String &s) {
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setUnion(Genre, s);
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}
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2020-06-26 23:30:30 +02:00
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template<size_t COUNT>
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void TagUnion<COUNT>::setYear(unsigned int i) {
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setUnion(Year, i);
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}
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2020-06-26 23:30:30 +02:00
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template<size_t COUNT>
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void TagUnion<COUNT>::setTrack(unsigned int i) {
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setUnion(Track, i);
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}
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2020-06-26 23:30:30 +02:00
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template<size_t COUNT>
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void TagUnion<COUNT>::setPictures(const PictureMap &l) {
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setUnion(Pictures, l);
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}
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template<size_t COUNT>
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bool TagUnion<COUNT>::isEmpty() const {
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2020-06-14 17:01:05 +02:00
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2020-06-26 23:30:30 +02:00
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for (size_t i = 0; i < COUNT; ++i) {
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if (d->tags[i] && !d->tags[i]->isEmpty())
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return false;
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}
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2018-05-10 15:29:28 +02:00
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return true;
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2018-05-10 15:29:28 +02:00
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}
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2020-06-26 23:30:30 +02:00
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// All the versions of TagUnion should be explicitly instantiated here.
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template class TagUnion<2>;
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template class TagUnion<3>;
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} // namespace TagLib
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} // namepsace Strawberry_TagLib
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