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/****************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtDeclarative module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial Usage
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
** $QT_END_LICENSE$
**
****************************************************************************/
#include "private/qdeclarativeimagebase_p.h"
#include "private/qdeclarativeimagebase_p_p.h"
#include <qdeclarativeengine.h>
#include <qdeclarativeinfo.h>
#include <qdeclarativepixmapcache_p.h>
#include <QFile>
QT_BEGIN_NAMESPACE
/*!
\class QDeclarativeImageBase
\internal
\brief The base class for declarative images.
*/
QDeclarativeImageBase::QDeclarativeImageBase(QDeclarativeImageBasePrivate &dd, QDeclarativeItem *parent)
: QDeclarativeItem(dd, parent)
{
}
QDeclarativeImageBase::~QDeclarativeImageBase()
{
}
QDeclarativeImageBase::Status QDeclarativeImageBase::status() const
{
Q_D(const QDeclarativeImageBase);
return d->status;
}
qreal QDeclarativeImageBase::progress() const
{
Q_D(const QDeclarativeImageBase);
return d->progress;
}
bool QDeclarativeImageBase::asynchronous() const
{
Q_D(const QDeclarativeImageBase);
return d->async;
}
void QDeclarativeImageBase::setAsynchronous(bool async)
{
Q_D(QDeclarativeImageBase);
if (d->async != async) {
d->async = async;
emit asynchronousChanged();
}
}
QUrl QDeclarativeImageBase::source() const
{
Q_D(const QDeclarativeImageBase);
return d->url;
}
void QDeclarativeImageBase::setSource(const QUrl &url)
{
Q_D(QDeclarativeImageBase);
//equality is fairly expensive, so we bypass for simple, common case
if ((d->url.isEmpty() == url.isEmpty()) && url == d->url)
return;
d->url = url;
emit sourceChanged(d->url);
if (isComponentComplete())
load();
}
void QDeclarativeImageBase::setSourceSize(const QSize& size)
{
Q_D(QDeclarativeImageBase);
if (d->sourcesize == size)
return;
d->sourcesize = size;
emit sourceSizeChanged();
if (isComponentComplete())
load();
}
QSize QDeclarativeImageBase::sourceSize() const
{
Q_D(const QDeclarativeImageBase);
return d->sourcesize.isValid() ? d->sourcesize : QSize(implicitWidth(),implicitHeight());
}
void QDeclarativeImageBase::load()
{
Q_D(QDeclarativeImageBase);
if (d->progress != 0.0) {
d->progress = 0.0;
emit progressChanged(d->progress);
}
if (d->url.isEmpty()) {
d->pix.clear();
d->status = Null;
setImplicitWidth(0);
setImplicitHeight(0);
emit statusChanged(d->status);
pixmapChange();
update();
} else {
d->status = Loading;
d->pix.load(qmlEngine(this), d->url, d->sourcesize, d->async);
if (d->pix.isLoading()) {
static int thisRequestProgress = -1;
static int thisRequestFinished = -1;
if (thisRequestProgress == -1) {
thisRequestProgress =
QDeclarativeImageBase::staticMetaObject.indexOfSlot("requestProgress(qint64,qint64)");
thisRequestFinished =
QDeclarativeImageBase::staticMetaObject.indexOfSlot("requestFinished()");
}
d->pix.connectFinished(this, thisRequestFinished);
d->pix.connectDownloadProgress(this, thisRequestProgress);
} else {
QSize impsize = d->pix.implicitSize();
setImplicitWidth(impsize.width());
setImplicitHeight(impsize.height());
if (d->pix.isReady()) {
d->status = Ready;
if (!d->sourcesize.isValid())
emit sourceSizeChanged();
} else {
d->status = Error;
qmlInfo(this) << d->pix.error();
}
d->progress = 1.0;
emit statusChanged(d->status);
emit progressChanged(d->progress);
pixmapChange();
update();
}
}
emit statusChanged(d->status);
}
void QDeclarativeImageBase::requestFinished()
{
Q_D(QDeclarativeImageBase);
QSize impsize = d->pix.implicitSize();
if (d->pix.isError()) {
d->status = Error;
qmlInfo(this) << d->pix.error();
}
setImplicitWidth(impsize.width());
setImplicitHeight(impsize.height());
if (d->status == Loading)
d->status = Ready;
d->progress = 1.0;
emit statusChanged(d->status);
emit progressChanged(1.0);
if (!d->sourcesize.isValid())
emit sourceSizeChanged();
pixmapChange();
update();
}
void QDeclarativeImageBase::requestProgress(qint64 received, qint64 total)
{
Q_D(QDeclarativeImageBase);
if (d->status == Loading && total > 0) {
d->progress = qreal(received)/total;
emit progressChanged(d->progress);
}
}
void QDeclarativeImageBase::componentComplete()
{
Q_D(QDeclarativeImageBase);
QDeclarativeItem::componentComplete();
if (d->url.isValid())
load();
}
void QDeclarativeImageBase::pixmapChange()
{
}
QT_END_NAMESPACE
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