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qasyncimage.cpp
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1/*
2 This file is part of KNewStuff2.
3 Copyright (c) 2006, 2007 Josef Spillner <spillner@kde.org>
4
5 This library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 This library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with this library. If not, see <http://www.gnu.org/licenses/>.
17*/
18
19#include "qasyncimage_p.h"
20
21#include <kio/job.h>
22#include <kio/scheduler.h>
23#include <kstandarddirs.h>
24#include <kapplication.h>
25#include <krandom.h>
26#include <kdebug.h>
27
28#include <QtCore/QFile>
29
30QAsyncImage::QAsyncImage(const QString& url, QObject* parent)
31 : QObject(parent), QImage(), m_url(url)
32{
33 if (!m_url.isEmpty()) {
34 KIO::TransferJob *job = KIO::get(m_url, KIO::NoReload, KIO::HideProgressInfo);
35 KIO::Scheduler::setJobPriority(job,1);
36 connect(job, SIGNAL(result(KJob*)), SLOT(slotDownload(KJob*)));
37 connect(job, SIGNAL(data(KIO::Job*,QByteArray)), SLOT(slotData(KIO::Job*,QByteArray)));
38 }
39}
40
41void QAsyncImage::slotData(KIO::Job *job, const QByteArray& buf)
42{
43 Q_UNUSED(job);
44 m_buffer.append(buf);
45}
46
47void QAsyncImage::slotDownload(KJob *job)
48{
49 //kDebug(550) << "DOWNLOAD";
50 if (job->error()) {
51 // XXX ???
52 m_buffer.clear();
53 return;
54 }
55 loadFromData(m_buffer);
56 m_buffer.clear();
57 emit signalLoaded(m_url, *this);
58}
59
60#include "qasyncimage_p.moc"
KIO::Job
KIO::Scheduler::setJobPriority
static void setJobPriority(SimpleJob *job, int priority)
KIO::TransferJob
KJob
KJob::error
int error() const
QAsyncImage::signalLoaded
void signalLoaded(const QString &url, const QImage &pix)
QAsyncImage::QAsyncImage
QAsyncImage(const QString &url, QObject *parent)
Definition: qasyncimage.cpp:30
QObject
job.h
kapplication.h
kdebug.h
krandom.h
kstandarddirs.h
KIO::get
TransferJob * get(const KUrl &url, LoadType reload=NoReload, JobFlags flags=DefaultFlags)
KIO::NoReload
NoReload
KIO::HideProgressInfo
HideProgressInfo
qasyncimage_p.h
scheduler.h
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