--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/declarative/graphicsitems/qdeclarativeimagebase.cpp Tue Jul 06 15:10:48 2010 +0300
@@ -0,0 +1,256 @@
+/****************************************************************************
+**
+** 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.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** 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.
+**
+** 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
+
+QDeclarativeImageBase::QDeclarativeImageBase(QDeclarativeImageBasePrivate &dd, QDeclarativeItem *parent)
+ : QDeclarativeItem(dd, parent)
+{
+}
+
+QDeclarativeImageBase::~QDeclarativeImageBase()
+{
+ Q_D(QDeclarativeImageBase);
+ if (d->pendingPixmapCache)
+ QDeclarativePixmapCache::cancel(d->url, this);
+}
+
+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;
+
+ if (d->pendingPixmapCache) {
+ QDeclarativePixmapCache::cancel(d->url, this);
+ d->pendingPixmapCache = false;
+ }
+
+ 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 = QPixmap();
+ d->status = Null;
+ setImplicitWidth(0);
+ setImplicitHeight(0);
+ emit statusChanged(d->status);
+ pixmapChange();
+ update();
+ } else {
+ d->status = Loading;
+ int reqwidth = d->sourcesize.width();
+ int reqheight = d->sourcesize.height();
+ QSize impsize;
+ QString errorString;
+ QDeclarativePixmapReply::Status status = QDeclarativePixmapCache::get(d->url, &d->pix, &errorString, &impsize, d->async, reqwidth, reqheight);
+ if (status != QDeclarativePixmapReply::Ready && status != QDeclarativePixmapReply::Error) {
+ QDeclarativePixmapReply *reply = QDeclarativePixmapCache::request(qmlEngine(this), d->url, reqwidth, reqheight);
+ d->pendingPixmapCache = true;
+
+ static int replyDownloadProgress = -1;
+ static int replyFinished = -1;
+ static int thisRequestProgress = -1;
+ static int thisRequestFinished = -1;
+ if (replyDownloadProgress == -1) {
+ replyDownloadProgress =
+ QDeclarativePixmapReply::staticMetaObject.indexOfSignal("downloadProgress(qint64,qint64)");
+ replyFinished =
+ QDeclarativePixmapReply::staticMetaObject.indexOfSignal("finished()");
+ thisRequestProgress =
+ QDeclarativeImageBase::staticMetaObject.indexOfSlot("requestProgress(qint64,qint64)");
+ thisRequestFinished =
+ QDeclarativeImageBase::staticMetaObject.indexOfSlot("requestFinished()");
+ }
+
+ QMetaObject::connect(reply, replyFinished, this,
+ thisRequestFinished, Qt::DirectConnection);
+ QMetaObject::connect(reply, replyDownloadProgress, this,
+ thisRequestProgress, Qt::DirectConnection);
+ } else {
+ //### should be unified with requestFinished
+ if (status == QDeclarativePixmapReply::Ready) {
+ setImplicitWidth(impsize.width());
+ setImplicitHeight(impsize.height());
+
+ if (d->status == Loading)
+ d->status = Ready;
+
+ if (!d->sourcesize.isValid())
+ emit sourceSizeChanged();
+ } else {
+ d->status = Error;
+ qmlInfo(this) << errorString;
+ }
+ d->progress = 1.0;
+ emit statusChanged(d->status);
+ emit progressChanged(d->progress);
+ pixmapChange();
+ update();
+ }
+ }
+
+ emit statusChanged(d->status);
+}
+
+void QDeclarativeImageBase::requestFinished()
+{
+ Q_D(QDeclarativeImageBase);
+
+ d->pendingPixmapCache = false;
+
+ QSize impsize;
+ QString errorString;
+ if (QDeclarativePixmapCache::get(d->url, &d->pix, &errorString, &impsize, d->async, d->sourcesize.width(), d->sourcesize.height()) != QDeclarativePixmapReply::Ready) {
+ d->status = Error;
+ qmlInfo(this) << errorString;
+ }
+ 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