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Diffstat (limited to 'src/gvcore/documentloadingimpl.cpp')
| -rw-r--r-- | src/gvcore/documentloadingimpl.cpp | 165 |
1 files changed, 165 insertions, 0 deletions
diff --git a/src/gvcore/documentloadingimpl.cpp b/src/gvcore/documentloadingimpl.cpp new file mode 100644 index 0000000..e148543 --- /dev/null +++ b/src/gvcore/documentloadingimpl.cpp @@ -0,0 +1,165 @@ +// vim: set tabstop=4 shiftwidth=4 noexpandtab +/* +Gwenview - A simple image viewer for KDE +Copyright 2000-2004 Aur�lien G�teau + +This program is free software; you can redistribute it and/or +modify it under the terms of the GNU General Public License +as published by the Free Software Foundation; either version 2 +of the License, or (at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program; if not, write to the Free Software +Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + +*/ + +#include "documentloadingimpl.moc" + +// Qt + +// KDE +#include <kmimetype.h> + +// Local +#include "imageloader.h" +#include "documentotherloadedimpl.h" +#include "documentanimatedloadedimpl.h" +#include "documentloadedimpl.h" +#include "documentjpegloadedimpl.h" +#include "mimetypeutils.h" + +namespace Gwenview { + +#undef ENABLE_LOG +#undef LOG +//#define ENABLE_LOG +#ifdef ENABLE_LOG +#define LOG(x) kdDebug() << k_funcinfo << x << endl +#else +#define LOG(x) ; +#endif + +//--------------------------------------------------------------------- +// +// DocumentLoadingImplPrivate +// +//--------------------------------------------------------------------- + +class DocumentLoadingImplPrivate { +public: + DocumentLoadingImplPrivate() + : mLoader( NULL ) + {} + + ImageLoader* mLoader; +}; + +//--------------------------------------------------------------------- +// +// DocumentLoadingImpl +// +//--------------------------------------------------------------------- +DocumentLoadingImpl::DocumentLoadingImpl(Document* document) +: DocumentImpl(document) { + LOG(""); + d=new DocumentLoadingImplPrivate; +} + + +DocumentLoadingImpl::~DocumentLoadingImpl() { + LOG(""); + delete d; +} + + +void DocumentLoadingImpl::init() { + LOG(""); + d->mLoader = ImageLoader::loader( mDocument->url(), this, BUSY_LOADING ); + if (d->mLoader->urlKind()==MimeTypeUtils::KIND_FILE) { + LOG("urlKind already determined"); + switchToImpl(new DocumentOtherLoadedImpl(mDocument)); + return; + } + connect( d->mLoader, SIGNAL( urlKindDetermined()), SLOT( slotURLKindDetermined() )); + connect( d->mLoader, SIGNAL( sizeLoaded( int, int )), SLOT( sizeLoaded( int, int ))); + connect( d->mLoader, SIGNAL( imageChanged( const QRect& )), SLOT( imageChanged( const QRect& ))); + connect( d->mLoader, SIGNAL( imageLoaded( bool )), SLOT( imageLoaded( bool ))); + + // it's possible the loader already has the whole or at least part of the image loaded + QImage image = d->mLoader->processedImage(); + if (!image.isNull()) { + if( d->mLoader->frames().count() > 0 ) { + setImage( d->mLoader->frames().first().image); + emitImageRectUpdated(); + } else { + setImage(image); + QMemArray< QRect > rects = d->mLoader->loadedRegion().rects(); + for( unsigned int i = 0; i < rects.count(); ++i ) { + emit rectUpdated(rects[i]); + } + } + } + if( d->mLoader->completed()) imageLoaded( d->mLoader->frames().count() != 0 ); + // 'this' may be deleted here +} + + +void DocumentLoadingImpl::slotURLKindDetermined() { + LOG(""); + if (d->mLoader->urlKind()==MimeTypeUtils::KIND_FILE) { + switchToImpl(new DocumentOtherLoadedImpl(mDocument)); + } +} + + +void DocumentLoadingImpl::imageLoaded( bool ok ) { + LOG(""); + + QCString format = d->mLoader->imageFormat(); + if ( !ok || format.isEmpty()) { + // Unknown format, no need to go further + emit finished(false); + switchToImpl(new DocumentEmptyImpl(mDocument)); + return; + } + setImageFormat( format ); + setMimeType(d->mLoader->mimeType()); + + // Update file info + setFileSize(d->mLoader->rawData().size()); + + // Now we switch to a loaded implementation + if ( d->mLoader->frames().count() > 1 ) { + switchToImpl( new DocumentAnimatedLoadedImpl(mDocument, d->mLoader->frames())); + } else if ( format == "JPEG" ) { + switchToImpl( new DocumentJPEGLoadedImpl(mDocument, d->mLoader->rawData()) ); + } else { + switchToImpl(new DocumentLoadedImpl(mDocument)); + } +} + + +void DocumentLoadingImpl::imageChanged(const QRect& rect) { + LOG(rect); + setImage(d->mLoader->processedImage()); + emit rectUpdated(rect); +} + + +void DocumentLoadingImpl::sizeLoaded(int width, int height) { + LOG(width << "x" << height); + // Silence compiler + width=width; + height=height; + + setImage(d->mLoader->processedImage()); + emit sizeUpdated(); +} + +} // namespace |