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166 lines
4.4 KiB
166 lines
4.4 KiB
// vim: set tabstop=4 shiftwidth=4 noexpandtab
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/*
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Gwenview - A simple image viewer for KDE
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Copyright 2000-2004 Aurélien Gâteau
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include "documentloadingimpl.moc"
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// Qt
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// KDE
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#include <kmimetype.h>
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// Local
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#include "imageloader.h"
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#include "documentotherloadedimpl.h"
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#include "documentanimatedloadedimpl.h"
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#include "documentloadedimpl.h"
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#include "documentjpegloadedimpl.h"
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#include "mimetypeutils.h"
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namespace Gwenview {
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#undef ENABLE_LOG
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#undef LOG
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//#define ENABLE_LOG
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#ifdef ENABLE_LOG
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#define LOG(x) kdDebug() << k_funcinfo << x << endl
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#else
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#define LOG(x) ;
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#endif
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//---------------------------------------------------------------------
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//
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// DocumentLoadingImplPrivate
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//
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//---------------------------------------------------------------------
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class DocumentLoadingImplPrivate {
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public:
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DocumentLoadingImplPrivate()
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: mLoader( NULL )
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{}
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ImageLoader* mLoader;
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};
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//---------------------------------------------------------------------
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//
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// DocumentLoadingImpl
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//
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//---------------------------------------------------------------------
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DocumentLoadingImpl::DocumentLoadingImpl(Document* document)
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: DocumentImpl(document) {
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LOG("");
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d=new DocumentLoadingImplPrivate;
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}
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DocumentLoadingImpl::~DocumentLoadingImpl() {
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LOG("");
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delete d;
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}
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void DocumentLoadingImpl::init() {
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LOG("");
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d->mLoader = ImageLoader::loader( mDocument->url(), this, BUSY_LOADING );
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if (d->mLoader->urlKind()==MimeTypeUtils::KIND_FILE) {
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LOG("urlKind already determined");
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switchToImpl(new DocumentOtherLoadedImpl(mDocument));
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return;
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}
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connect( d->mLoader, SIGNAL( urlKindDetermined()), SLOT( slotURLKindDetermined() ));
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connect( d->mLoader, SIGNAL( sizeLoaded( int, int )), SLOT( sizeLoaded( int, int )));
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connect( d->mLoader, SIGNAL( imageChanged( const QRect& )), SLOT( imageChanged( const QRect& )));
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connect( d->mLoader, SIGNAL( imageLoaded( bool )), SLOT( imageLoaded( bool )));
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// it's possible the loader already has the whole or at least part of the image loaded
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QImage image = d->mLoader->processedImage();
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if (!image.isNull()) {
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if( d->mLoader->frames().count() > 0 ) {
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setImage( d->mLoader->frames().first().image);
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emitImageRectUpdated();
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} else {
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setImage(image);
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QMemArray< QRect > rects = d->mLoader->loadedRegion().rects();
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for( unsigned int i = 0; i < rects.count(); ++i ) {
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emit rectUpdated(rects[i]);
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}
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}
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}
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if( d->mLoader->completed()) imageLoaded( d->mLoader->frames().count() != 0 );
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// 'this' may be deleted here
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}
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void DocumentLoadingImpl::slotURLKindDetermined() {
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LOG("");
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if (d->mLoader->urlKind()==MimeTypeUtils::KIND_FILE) {
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switchToImpl(new DocumentOtherLoadedImpl(mDocument));
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}
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}
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void DocumentLoadingImpl::imageLoaded( bool ok ) {
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LOG("");
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QCString format = d->mLoader->imageFormat();
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if ( !ok || format.isEmpty()) {
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// Unknown format, no need to go further
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emit finished(false);
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switchToImpl(new DocumentEmptyImpl(mDocument));
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return;
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}
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setImageFormat( format );
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setMimeType(d->mLoader->mimeType());
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// Update file info
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setFileSize(d->mLoader->rawData().size());
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// Now we switch to a loaded implementation
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if ( d->mLoader->frames().count() > 1 ) {
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switchToImpl( new DocumentAnimatedLoadedImpl(mDocument, d->mLoader->frames()));
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} else if ( format == "JPEG" ) {
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switchToImpl( new DocumentJPEGLoadedImpl(mDocument, d->mLoader->rawData()) );
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} else {
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switchToImpl(new DocumentLoadedImpl(mDocument));
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}
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}
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void DocumentLoadingImpl::imageChanged(const QRect& rect) {
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LOG(rect);
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setImage(d->mLoader->processedImage());
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emit rectUpdated(rect);
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}
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void DocumentLoadingImpl::sizeLoaded(int width, int height) {
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LOG(width << "x" << height);
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// Silence compiler
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width=width;
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height=height;
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setImage(d->mLoader->processedImage());
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emit sizeUpdated();
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}
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} // namespace
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