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Diffstat (limited to 'src/digikam/pixmapmanager.cpp')
-rw-r--r-- | src/digikam/pixmapmanager.cpp | 252 |
1 files changed, 252 insertions, 0 deletions
diff --git a/src/digikam/pixmapmanager.cpp b/src/digikam/pixmapmanager.cpp new file mode 100644 index 00000000..3da11b5a --- /dev/null +++ b/src/digikam/pixmapmanager.cpp @@ -0,0 +1,252 @@ +/* ============================================================ + * + * This file is a part of digiKam project + * http://www.digikam.org + * + * Date : 2005-04-14 + * Description : a pixmap manager for album icon view. + * + * Copyright (C) 2005 by Renchi Raju <[email protected]> + * Copyright (C) 2006-2007 by Gilles Caulier <caulier dot gilles at gmail dot com> + * + * 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, 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. + * + * ============================================================ */ + +// C Ansi includes. + +extern "C" +{ +#include <unistd.h> +} + +// TQt includes. + +#include <tqcache.h> +#include <tqguardedptr.h> +#include <tqpixmap.h> +#include <tqdir.h> +#include <tqfile.h> +#include <tqtimer.h> +#include <tqimage.h> + +// KDE includes. + +#include <kmdcodec.h> +#include <kiconloader.h> +#include <kurl.h> + +// Local includes. + +#include "thumbnailjob.h" +#include "albumiconview.h" +#include "albumiconitem.h" +#include "albumsettings.h" +#include "pixmapmanager.h" +#include "pixmapmanager.moc" + +/** @file pixmapmanager.cpp */ + +namespace Digikam +{ + +class PixmapManagerPriv +{ + +public: + + PixmapManagerPriv() + { + size = 0; + cache = 0; + view = 0; + timer = 0; + thumbJob = 0; + } + + int size; + + TQCache<TQPixmap> *cache; + TQGuardedPtr<ThumbnailJob> thumbJob; + TQTimer *timer; + TQString thumbCacheDir; + + AlbumIconView *view; +}; + +PixmapManager::PixmapManager(AlbumIconView* view) +{ + d = new PixmapManagerPriv; + d->view = view; + d->cache = new TQCache<TQPixmap>(101, 211); + d->cache->setAutoDelete(true); + d->thumbCacheDir = TQDir::homeDirPath() + "/.thumbnails/"; + + d->timer = new TQTimer(this); + connect(d->timer, TQ_SIGNAL(timeout()), + this, TQ_SLOT(slotCompleted())); +} + +PixmapManager::~PixmapManager() +{ + delete d->timer; + + if (!d->thumbJob.isNull()) + { + d->thumbJob->kill(); + } + + delete d->cache; + delete d; +} + +void PixmapManager::setThumbnailSize(int size) +{ + if (d->size == size) + return; + + d->size = size; + d->cache->clear(); + if (!d->thumbJob.isNull()) + { + d->thumbJob->kill(); + d->thumbJob = 0; + } +} + +TQPixmap* PixmapManager::find(const KURL& url) +{ + TQPixmap* pix = d->cache->find(url.path()); + if (pix) + return pix; + + if (d->thumbJob.isNull()) + { + d->thumbJob = new ThumbnailJob(url, d->size, true, AlbumSettings::instance()->getExifRotate()); + + connect(d->thumbJob, TQ_SIGNAL(signalThumbnail(const KURL&, const TQPixmap&)), + this, TQ_SLOT(slotGotThumbnail(const KURL&, const TQPixmap&))); + + connect(d->thumbJob, TQ_SIGNAL(signalFailed(const KURL&)), + this, TQ_SLOT(slotFailedThumbnail(const KURL&))); + + connect(d->thumbJob, TQ_SIGNAL(signalCompleted()), + this, TQ_SLOT(slotCompleted())); + } + + return 0; +} + +void PixmapManager::remove(const KURL& url) +{ + d->cache->remove(url.path()); + + if (!d->thumbJob.isNull()) + d->thumbJob->removeItem(url); + + // remove the items from the thumbnail cache directory as well. + TQString uri = "file://" + TQDir::cleanDirPath(url.path()); + KMD5 md5(TQFile::encodeName(uri).data()); + uri = md5.hexDigest(); + + TQString smallThumbPath = d->thumbCacheDir + "normal/" + uri + ".png"; + TQString bigThumbPath = d->thumbCacheDir + "large/" + uri + ".png"; + + ::unlink(TQFile::encodeName(smallThumbPath)); + ::unlink(TQFile::encodeName(bigThumbPath)); +} + +void PixmapManager::clear() +{ + if (!d->thumbJob.isNull()) + { + d->thumbJob->kill(); + d->thumbJob = 0; + } + + d->cache->clear(); +} + +void PixmapManager::slotGotThumbnail(const KURL& url, const TQPixmap& pix) +{ + d->cache->remove(url.path()); + TQPixmap* thumb = new TQPixmap(pix); + d->cache->insert(url.path(), thumb); + emit signalPixmap(url); +} + +void PixmapManager::slotFailedThumbnail(const KURL& url) +{ + TQImage img; + TQString ext = TQFileInfo(url.path()).extension(false); + + // Wrapper around mime type of item to get the right icon. + + AlbumSettings* settings = AlbumSettings::instance(); + if (settings) + { + if (settings->getImageFileFilter().upper().contains(ext.upper()) || + settings->getRawFileFilter().upper().contains(ext.upper())) + { + img = DesktopIcon("image-x-generic", TDEIcon::SizeEnormous).convertToImage(); + } + else if (settings->getMovieFileFilter().upper().contains(ext.upper())) + { + img = DesktopIcon("video-x-generic", TDEIcon::SizeEnormous).convertToImage(); + } + else if (settings->getAudioFileFilter().upper().contains(ext.upper())) + { + img = DesktopIcon("audio-x-generic", TDEIcon::SizeEnormous).convertToImage(); + } + } + + if (img.isNull()) + img = DesktopIcon("file_broken", TDEIcon::SizeEnormous).convertToImage(); + + // Resize icon to the right size depending of current settings. + + TQSize size(img.size()); + size.scale(d->size, d->size, TQSize::ScaleMin); + if (size.width() < img.width() && size.height() < img.height()) + { + // only scale down + // do not scale up, looks bad + img = img.smoothScale(size); + } + + d->cache->remove(url.path()); + TQPixmap* thumb = new TQPixmap(img); + d->cache->insert(url.path(), thumb); + emit signalPixmap(url); +} + +void PixmapManager::slotCompleted() +{ + if (!d->thumbJob.isNull()) + { + d->thumbJob->kill(); + d->thumbJob = 0; + } + + AlbumIconItem* item = d->view->nextItemToThumbnail(); + if (!item) + return; + + find(item->imageInfo()->kurl()); +} + +int PixmapManager::cacheSize() const +{ + return d->cache->maxCost(); +} + +} // namespace Digikam |