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koffice/tools/thumbnail/kofficecreator.cpp

126 lines
3.2 KiB

/* This file is part of the KDE libraries
Copyright (C) 2002 Simon MacMullen
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
// $Id: kofficecreator.cpp 508787 2006-02-12 18:28:12Z ingwa $
#include <time.h>
#include <tqpixmap.h>
#include <tqimage.h>
#include <tqpainter.h>
#include <kapplication.h>
#include <kfileitem.h>
#include <ktrader.h>
#include <klibloader.h>
#include <kparts/part.h>
#include <kparts/componentfactory.h>
#include "kofficecreator.h"
#include <KoStore.h>
#include <KoDocument.h>
#include "koffice_export.h"
extern "C"
{
KOFFICETOOLS_EXPORT ThumbCreator *new_creator()
{
return new KOfficeCreator;
}
}
KOfficeCreator::KOfficeCreator()
: m_doc(0)
{
}
KOfficeCreator::~KOfficeCreator()
{
delete m_doc;
}
bool KOfficeCreator::create(const TQString &path, int width, int height, TQImage &img)
{
KoStore* store = KoStore::createStore(path, KoStore::Read);
if ( store && ( store->open( TQString("Thumbnails/thumbnail.png") ) || store->open( TQString("preview.png") ) ) )
{
// Hooray! No long delay for the user...
TQByteArray bytes = store->read(store->size());
store->close();
delete store;
return img.loadFromData(bytes);
}
delete store;
TQString mimetype = KMimeType::findByPath( path )->name();
m_doc = KParts::ComponentFactory::createPartInstanceFromQuery<KoDocument>( mimetype, TQString());
if (!m_doc) return false;
connect(m_doc, TQT_SIGNAL(completed()), TQT_SLOT(slotCompleted()));
KURL url;
url.setPath( path );
m_doc->setCheckAutoSaveFile( false );
m_doc->setAutoErrorHandlingEnabled( false ); // don't show message boxes
if ( !m_doc->openURL( url ) )
return false;
m_completed = false;
startTimer(5000);
while (!m_completed)
kapp->processOneEvent();
killTimers();
// render the page on a bigger pixmap and use smoothScale,
// looks better than directly scaling with the TQPainter (malte)
TQPixmap pix;
if (width > 400)
{
pix = m_doc->generatePreview(TQSize(width, height));
}
else
{
pix = m_doc->generatePreview(TQSize(400, 400));
}
img = pix.convertToImage();
return true;
}
void KOfficeCreator::timerEvent(TQTimerEvent *)
{
m_doc->closeURL();
m_completed = true;
}
void KOfficeCreator::slotCompleted()
{
m_completed = true;
}
ThumbCreator::Flags KOfficeCreator::flags() const
{
return (Flags)(DrawFrame | BlendIcon);
}
#include "kofficecreator.moc"