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KNewStuff

qasyncpixmap.cpp

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00001 /*
00002     This file is part of KNewStuff2.
00003     Copyright (c) 2006, 2007 Josef Spillner <spillner@kde.org>
00004 
00005     This library is free software; you can redistribute it and/or
00006     modify it under the terms of the GNU Library General Public
00007     License as published by the Free Software Foundation; either
00008     version 2 of the License, or (at your option) any later version.
00009 
00010     This library is distributed in the hope that it will be useful,
00011     but WITHOUT ANY WARRANTY; without even the implied warranty of
00012     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013     Library General Public License for more details.
00014 
00015     You should have received a copy of the GNU Library General Public License
00016     along with this library; see the file COPYING.LIB.  If not, write to
00017     the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
00018     Boston, MA 02110-1301, USA.
00019 */
00020 
00021 #include "qasyncpixmap.h"
00022 
00023 #include <kio/job.h>
00024 #include <kio/scheduler.h>
00025 #include <kstandarddirs.h>
00026 #include <kapplication.h>
00027 #include <krandom.h>
00028 #include <kdebug.h>
00029 
00030 #include <QtCore/QFile>
00031 
00032 QAsyncPixmap::QAsyncPixmap(const QString& url, QObject* parent)
00033         : QObject(parent), QPixmap(), m_url(url)
00034 {
00035     if (!m_url.isEmpty()) {
00036         KIO::TransferJob *job = KIO::get(m_url, KIO::NoReload, KIO::HideProgressInfo);
00037         KIO::Scheduler::scheduleJob(job);
00038         connect(job, SIGNAL(result(KJob*)), SLOT(slotDownload(KJob*)));
00039         connect(job, SIGNAL(data(KIO::Job*, const QByteArray&)), SLOT(slotData(KIO::Job*, const QByteArray&)));
00040     }
00041 }
00042 
00043 void QAsyncPixmap::slotData(KIO::Job *job, const QByteArray& buf)
00044 {
00045     Q_UNUSED(job);
00046     m_buffer.append(buf);
00047 }
00048 
00049 void QAsyncPixmap::slotDownload(KJob *job)
00050 {
00051     //kDebug(550) << "DOWNLOAD";
00052     if (job->error()) {
00053         // XXX ???
00054         m_buffer.clear();
00055         return;
00056     }
00057     loadFromData(m_buffer);
00058     m_buffer.clear();
00059     emit signalLoaded(m_url, *this);
00060 }
00061 
00062 #include "qasyncpixmap.moc"

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