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https://invent.kde.org/graphics/okular
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19d98d6a74
find . \( -name "*.cpp" -or -name "*.h" -or -name "*.c" -or -name "*.cc" \) -exec clang-format -i {} \;
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124 lines
4.3 KiB
C++
124 lines
4.3 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 "mobidocument.h"
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#include <QApplication> // Because of the HACK
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#include <QColor>
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#include <QDebug>
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#include <QFile>
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#include <QPalette> // Because of the HACK
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#include <QRegExp>
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#include <qmobipocket/mobipocket.h>
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#include <qmobipocket/qfilestream.h>
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using namespace Mobi;
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MobiDocument::MobiDocument(const QString &fileName)
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: QTextDocument()
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{
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file = new Mobipocket::QFileStream(fileName);
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doc = new Mobipocket::Document(file);
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if (doc->isValid()) {
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QString text = doc->text();
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QString header = text.left(1024);
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if (header.contains(QStringLiteral("<html>")) || header.contains(QStringLiteral("<HTML>"))) {
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// HACK BEGIN Get the links without CSS to be blue
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// Remove if Qt ever gets fixed and the code in textdocumentgenerator.cpp works
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const QPalette orig = qApp->palette();
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QPalette p = orig;
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p.setColor(QPalette::Link, Qt::blue);
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qApp->setPalette(p);
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// HACK END
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setHtml(fixMobiMarkup(text));
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// HACK BEGIN
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qApp->setPalette(orig);
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// HACK END
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} else {
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setPlainText(text);
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}
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}
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}
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MobiDocument::~MobiDocument()
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{
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delete doc;
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delete file;
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}
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QVariant MobiDocument::loadResource(int type, const QUrl &name)
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{
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if (type != QTextDocument::ImageResource || name.scheme() != QString(QStringLiteral("pdbrec")))
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return QVariant();
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bool ok;
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quint16 recnum = name.path().midRef(1).toUShort(&ok);
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if (!ok || recnum >= doc->imageCount())
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return QVariant();
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QVariant resource;
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resource.setValue(doc->getImage(recnum - 1));
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addResource(type, name, resource);
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return resource;
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}
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// starting from 'pos', find position in the string that is not inside a tag
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int outsideTag(const QString &data, int pos)
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{
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for (int i = pos - 1; i >= 0; i--) {
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if (data[i] == QLatin1Char('>'))
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return pos;
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if (data[i] == QLatin1Char('<'))
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return i;
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}
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return pos;
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}
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QString MobiDocument::fixMobiMarkup(const QString &data)
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{
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QString ret = data;
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QMap<int, QString> anchorPositions;
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static QRegExp anchors(QStringLiteral("<a(?: href=\"[^\"]*\"){0,1}[\\s]+filepos=['\"]{0,1}([\\d]+)[\"']{0,1}"), Qt::CaseInsensitive);
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int pos = 0;
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// find all link destinations
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while ((pos = anchors.indexIn(data, pos)) != -1) {
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int filepos = anchors.cap(1).toUInt();
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if (filepos)
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anchorPositions[filepos] = anchors.cap(1);
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pos += anchors.matchedLength();
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}
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// put HTML anchors in all link destinations
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int offset = 0;
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QMapIterator<int, QString> it(anchorPositions);
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while (it.hasNext()) {
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it.next();
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// link pointing outside the document, ignore
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if ((it.key() + offset) >= ret.size())
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continue;
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int fixedpos = outsideTag(ret, it.key() + offset);
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ret.insert(fixedpos, QStringLiteral("<a name=\"") + it.value() + QStringLiteral("\"> </a>"));
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// inserting anchor shifts all offsets after the anchor
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offset += 21 + it.value().size();
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}
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// replace links referencing filepos with normal internal links
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ret.replace(anchors, QStringLiteral("<a href=\"#\\1\""));
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// Mobipocket uses strange variang of IMG tags: <img recindex="3232"> where recindex is number of
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// record containing image
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static QRegExp imgs(QStringLiteral("<img.*recindex=\"([\\d]*)\".*>"), Qt::CaseInsensitive);
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imgs.setMinimal(true);
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ret.replace(imgs, QStringLiteral("<img src=\"pdbrec:/\\1\">"));
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ret.replace(QStringLiteral("<mbp:pagebreak/>"), QStringLiteral("<p style=\"page-break-after:always\"></p>"));
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return ret;
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}
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