You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
128 lines
3.2 KiB
128 lines
3.2 KiB
/*************************************************************************** |
|
* Copyright (C) 2008 by Ely Levy <elylevy@cs.huji.ac.il> * |
|
* * |
|
* This program is free software; you can redistribute it and/or modify * |
|
* it under the terms of the GNU General Public License as published by * |
|
* the Free Software Foundation; either version 2 of the License, or * |
|
* (at your option) any later version. * |
|
***************************************************************************/ |
|
|
|
#include "epubdocument.h" |
|
#include <QTemporaryFile> |
|
#include <QDir> |
|
|
|
#include <KDebug> |
|
|
|
#include <QRegExp> |
|
|
|
using namespace Epub; |
|
|
|
namespace { |
|
|
|
QString resourceUrl(const KUrl &baseUrl, const QString &u) |
|
{ |
|
KUrl newUrl(KUrl(baseUrl.directory(KUrl::AppendTrailingSlash)), u); |
|
QString newDir = newUrl.toLocalFile(); |
|
newDir.remove(0, 1); |
|
return newDir; |
|
} |
|
|
|
} |
|
|
|
EpubDocument::EpubDocument(const QString &fileName) : QTextDocument(), |
|
padding(20) |
|
{ |
|
mEpub = epub_open(qPrintable(fileName), 3); |
|
|
|
setPageSize(QSizeF(600, 800)); |
|
} |
|
|
|
bool EpubDocument::isValid() |
|
{ |
|
return (mEpub?true:false); |
|
} |
|
|
|
EpubDocument::~EpubDocument() { |
|
|
|
if (mEpub) |
|
epub_close(mEpub); |
|
|
|
epub_cleanup(); |
|
} |
|
|
|
struct epub *EpubDocument::getEpub() |
|
{ |
|
return mEpub; |
|
} |
|
|
|
void EpubDocument::setCurrentSubDocument(const QString &doc) |
|
{ |
|
mCurrentSubDocument = KUrl::fromPath("/" + doc); |
|
} |
|
|
|
int EpubDocument::maxContentHeight() const |
|
{ |
|
return pageSize().height() - (2 * padding); |
|
} |
|
|
|
int EpubDocument::maxContentWidth() const |
|
{ |
|
return pageSize().width() - (2 * padding); |
|
} |
|
|
|
void EpubDocument::checkCSS(QString &css) |
|
{ |
|
// remove paragraph line-heights |
|
css.remove(QRegExp("line-height\\s*:\\s*[\\w\\.]*;")); |
|
} |
|
|
|
QVariant EpubDocument::loadResource(int type, const QUrl &name) |
|
{ |
|
int size; |
|
char *data; |
|
|
|
// Get the data from the epub file |
|
size = epub_get_data(mEpub, resourceUrl(mCurrentSubDocument, name.toString()).toUtf8(), &data); |
|
|
|
QVariant resource; |
|
|
|
if (data) { |
|
switch(type) { |
|
case QTextDocument::ImageResource:{ |
|
QImage img = QImage::fromData((unsigned char *)data, size); |
|
const int maxHeight = maxContentHeight(); |
|
const int maxWidth = maxContentWidth(); |
|
if(img.height() > maxHeight) |
|
img = img.scaledToHeight(maxHeight); |
|
if(img.width() > maxWidth) |
|
img = img.scaledToWidth(maxWidth); |
|
resource.setValue(img); |
|
break; |
|
} |
|
case QTextDocument::StyleSheetResource: { |
|
QString css = QString::fromUtf8(data); |
|
checkCSS(css); |
|
resource.setValue(css); |
|
break; |
|
} |
|
case EpubDocument::MovieResource: { |
|
QTemporaryFile *tmp = new QTemporaryFile(QString("%1/okrXXXXXX").arg(QDir::tempPath()),this); |
|
if(!tmp->open()) kWarning() << "EPUB : error creating temporary video file"; |
|
if(tmp->write(data,size) == -1) kWarning() << "EPUB : error writing data" << tmp->errorString(); |
|
tmp->flush(); |
|
resource.setValue(tmp->fileName()); |
|
break; |
|
} |
|
default: |
|
resource.setValue(QString::fromUtf8(data)); |
|
break; |
|
} |
|
|
|
free(data); |
|
} |
|
|
|
// add to cache |
|
addResource(type, name, resource); |
|
|
|
return resource; |
|
}
|
|
|