183 lines
5.6 KiB
C++
183 lines
5.6 KiB
C++
/***************************************************************************
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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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#include <tbytevectorlist.h>
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#include <id3v2tag.h>
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#include <tdebug.h>
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#include <tstringlist.h>
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#include "commentsframe.h"
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#include "tpropertymap.h"
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using namespace Strawberry_TagLib::TagLib;
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using namespace ID3v2;
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class CommentsFrame::CommentsFramePrivate {
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public:
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CommentsFramePrivate() : textEncoding(String::Latin1) {}
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String::Type textEncoding;
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ByteVector language;
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String description;
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String text;
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};
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////////////////////////////////////////////////////////////////////////////////
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// public members
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////////////////////////////////////////////////////////////////////////////////
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CommentsFrame::CommentsFrame(String::Type encoding) : Frame("COMM"), d(new CommentsFramePrivate()) {
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d->textEncoding = encoding;
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}
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CommentsFrame::CommentsFrame(const ByteVector &data) : Frame(data), d(new CommentsFramePrivate()) {
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setData(data);
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}
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CommentsFrame::~CommentsFrame() {
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delete d;
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}
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String CommentsFrame::toString() const {
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return d->text;
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}
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ByteVector CommentsFrame::language() const {
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return d->language;
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}
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String CommentsFrame::description() const {
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return d->description;
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}
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String CommentsFrame::text() const {
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return d->text;
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}
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void CommentsFrame::setLanguage(const ByteVector &languageEncoding) {
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d->language = languageEncoding.mid(0, 3);
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}
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void CommentsFrame::setDescription(const String &s) {
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d->description = s;
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}
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void CommentsFrame::setText(const String &s) {
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d->text = s;
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}
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String::Type CommentsFrame::textEncoding() const {
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return d->textEncoding;
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}
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void CommentsFrame::setTextEncoding(String::Type encoding) {
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d->textEncoding = encoding;
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}
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PropertyMap CommentsFrame::asProperties() const {
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String key = description().upper();
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PropertyMap map;
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if (key.isEmpty() || key == "COMMENT")
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map.insert("COMMENT", text());
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else
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map.insert("COMMENT:" + key, text());
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return map;
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}
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CommentsFrame *CommentsFrame::findByDescription(const ID3v2::Tag *tag, const String &d) { // static
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ID3v2::FrameList comments = tag->frameList("COMM");
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for (ID3v2::FrameList::ConstIterator it = comments.begin();
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it != comments.end();
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++it) {
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CommentsFrame *frame = dynamic_cast<CommentsFrame *>(*it);
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if (frame && frame->description() == d)
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return frame;
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}
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return nullptr;
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}
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////////////////////////////////////////////////////////////////////////////////
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// protected members
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////////////////////////////////////////////////////////////////////////////////
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void CommentsFrame::parseFields(const ByteVector &data) {
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if (data.size() < 5) {
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debug("A comment frame must contain at least 5 bytes.");
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return;
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}
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d->textEncoding = String::Type(data[0]);
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d->language = data.mid(1, 3);
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int byteAlign = d->textEncoding == String::Latin1 || d->textEncoding == String::UTF8 ? 1 : 2;
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ByteVectorList l = ByteVectorList::split(data.mid(4), textDelimiter(d->textEncoding), byteAlign, 2);
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if (l.size() == 2) {
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if (d->textEncoding == String::Latin1) {
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d->description = Tag::latin1StringHandler()->parse(l.front());
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d->text = Tag::latin1StringHandler()->parse(l.back());
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}
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else {
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d->description = String(l.front(), d->textEncoding);
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d->text = String(l.back(), d->textEncoding);
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}
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}
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}
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ByteVector CommentsFrame::renderFields() const {
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ByteVector v;
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String::Type encoding = d->textEncoding;
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encoding = checkTextEncoding(d->description, encoding);
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encoding = checkTextEncoding(d->text, encoding);
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v.append(char(encoding));
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v.append(d->language.size() == 3 ? d->language : "XXX");
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v.append(d->description.data(encoding));
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v.append(textDelimiter(encoding));
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v.append(d->text.data(encoding));
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return v;
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}
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////////////////////////////////////////////////////////////////////////////////
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// private members
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////////////////////////////////////////////////////////////////////////////////
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CommentsFrame::CommentsFrame(const ByteVector &data, Header *h) : Frame(h), d(new CommentsFramePrivate()) {
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parseFields(fieldData(data));
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}
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