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+/* ============================================================
+ *
+ * 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 <renchi@pooh.tam.uiuc.edu>
+ * 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
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