mirror of
https://invent.kde.org/graphics/okular
synced 2024-09-12 20:51:17 +00:00
107 lines
3.7 KiB
C++
107 lines
3.7 KiB
C++
/***************************************************************************
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* Copyright (C) 2008 by Jakub Stachowski <qbast@go2.pl> *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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***************************************************************************/
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#include "converter.h"
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#include <QAbstractTextDocumentLayout>
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#include <QTextDocument>
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#include <QTextBlock>
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#include <QTextFrame>
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#include <QTextDocumentFragment>
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#include <QDebug>
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#include <QFile>
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#include <KLocalizedString>
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#include <core/action.h>
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using namespace Mobi;
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Converter::Converter()
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{
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}
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Converter::~Converter()
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{
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}
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void Converter::handleMetadata(const QMap<Mobipocket::Document::MetaKey,QString> &metadata)
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{
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QMapIterator<Mobipocket::Document::MetaKey,QString> it(metadata);
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while (it.hasNext()) {
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it.next();
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switch (it.key()) {
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case Mobipocket::Document::Title: addMetaData(Okular::DocumentInfo::Title, it.value()); break;
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case Mobipocket::Document::Author: addMetaData(Okular::DocumentInfo::Author, it.value()); break;
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case Mobipocket::Document::Description: addMetaData(Okular::DocumentInfo::Description, it.value()); break;
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case Mobipocket::Document::Subject: addMetaData(Okular::DocumentInfo::Subject, it.value()); break;
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case Mobipocket::Document::Copyright: addMetaData(Okular::DocumentInfo::Copyright, it.value()); break;
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}
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}
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}
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QTextDocument* Converter::convert( const QString &fileName )
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{
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MobiDocument* newDocument=new MobiDocument(fileName);
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if (!newDocument->mobi()->isValid()) {
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emit error(i18n("Error while opening the Mobipocket document."), -1);
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delete newDocument;
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return NULL;
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}
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if (newDocument->mobi()->hasDRM()) {
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emit error(i18n("This book is protected by DRM and can be displayed only on designated device"), -1);
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delete newDocument;
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return NULL;
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}
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handleMetadata(newDocument->mobi()->metadata());
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newDocument->setPageSize(QSizeF(600, 800));
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QTextFrameFormat frameFormat;
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frameFormat.setMargin( 20 );
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QTextFrame *rootFrame = newDocument->rootFrame();
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rootFrame->setFrameFormat( frameFormat );
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QMap<QString,QPair<int,int> > links;
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QMap<QString,QTextBlock> targets;
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// go over whole document and add all <a> tags to links or targets map
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for (QTextBlock it = newDocument->begin(); it != newDocument->end(); it = it.next())
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for (QTextBlock::iterator fit=it.begin(); !fit.atEnd(); ++fit) {
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QTextFragment frag=fit.fragment();
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QTextCharFormat format=frag.charFormat();
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if (!format.isAnchor()) continue;
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//link
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if (!format.anchorHref().isEmpty()) links[format.anchorHref()]=
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QPair<int,int>(frag.position(), frag.position()+frag.length());
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if (!format.anchorNames().isEmpty()) {
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// link targets
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Q_FOREACH(const QString& name, format.anchorNames())
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targets[QLatin1Char('#')+name]=it;
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}
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}
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// create link actions
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QMapIterator<QString,QPair<int,int> > it(links);
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while (it.hasNext()) {
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it.next();
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QUrl u(it.key());
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// external or internal link
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if (!u.isRelative()) emit addAction(new Okular::BrowseAction(QUrl(it.key())), it.value().first, it.value().second);
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else {
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// is there valid target?
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if (!targets.contains( it.key() ) || !targets[it.key()].isValid()) continue;
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emit addAction(new Okular::GotoAction(QString(), calculateViewport( newDocument, targets[it.key()] )),
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it.value().first, it.value().second);
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}
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}
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return newDocument;
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}
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