renamed IconManager to KFilePreviewGenerator

svn path=/trunk/KDE/kdebase/apps/; revision=863324

1 files changed, 0 insertions, 210 deletions

diff --git a/src/iconmanager.h b/src/iconmanager.h
deleted file mode 100644
index 4f0b9645f..000000000
--- a/src/iconmanager.h
+++ /dev/null
@@ -1,210 +0,0 @@
-/***************************************************************************
- *   Copyright (C) 2008 by Peter Penz <[email protected]>                  *
- *                                                                         *
- *   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.,                                       *
- *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
- ***************************************************************************/
-
-#ifndef ICONMANAGER_H
-#define ICONMANAGER_H
-
-#include <kfileitem.h>
-#include <kurl.h>
-
-#include <QList>
-#include <QObject>
-#include <QPixmap>
-
-class KDirModel;
-class KDirSortFilterProxyModel;
-class KJob;
-class KMimeTypeResolver;
-class QAbstractItemView;
-
-/**
- * @brief Manages the icon state of a directory model.
- *
- * Per default a preview is generated for each item.
- * Additionally the clipboard is checked for cut items.
- * The icon state for cut items gets dimmed automatically.
- *
- * The following strategy is used when creating previews:
- * - The previews for currently visible items are created before
- *   the previews for invisible items.
- * - If the user changes the visible area by using the scrollbars,
- *   all pending previews get paused. As soon as the user stays
- *   on the same position for a short delay, the previews are
- *   resumed. Also in this case the previews for the visible items
- *   are generated first.
- */
-class IconManager : public QObject
-{
-    Q_OBJECT
-
-public:
-    IconManager(QAbstractItemView* parent, KDirSortFilterProxyModel* model);
-    virtual ~IconManager();
-    void setShowPreview(bool show);
-    bool showPreview() const;
-
-    /**
-     * Updates the previews for all already available items. It is only necessary
-     * to invoke this method when the icon size of the abstract item view has
-     * been changed.
-     */
-    void updatePreviews();
-
-    /**
-     * Cancels all pending previews. Should be invoked when the URL of the item
-     * view has been changed.
-     */
-    void cancelPreviews();
-
-private slots:
-    /**
-     * Generates previews for the items \a items asynchronously.
-     */
-    void generatePreviews(const KFileItemList& items);
-
-    /**
-     * Adds the preview \a pixmap for the item \a item to the preview
-     * queue and starts a timer which will dispatch the preview queue
-     * later.
-     */
-    void addToPreviewQueue(const KFileItem& item, const QPixmap& pixmap);
-
-    /**
-     * Is invoked when the preview job has been finished and
-     * removes the job from the m_previewJobs list.
-     */
-    void slotPreviewJobFinished(KJob* job);
-
-    /** Synchronizes the item icon with the clipboard of cut items. */
-    void updateCutItems();
-
-    /**
-     * Dispatches the preview queue  block by block within
-     * time slices.
-     */
-    void dispatchPreviewQueue();
-
-    /**
-     * Pauses all preview jobs and invokes IconManager::resumePreviews()
-     * after a short delay. Is invoked as soon as the user has moved
-     * a scrollbar.
-     */
-    void pausePreviews();
-
-    /**
-     * Resumes the previews that have been paused after moving the
-     * scrollbar. The previews for the current visible area are
-     * generated first.
-     */
-    void resumePreviews();
-
-private:
-    /**
-     * Returns true, if the item \a item has been cut into
-     * the clipboard.
-     */
-    bool isCutItem(const KFileItem& item) const;
-
-    /** Applies an item effect to all cut items. */
-    void applyCutItemEffect();
-
-    /**
-     * Applies a frame around the icon. False is returned if
-     * no frame has been added because the icon is too small.
-     */
-    bool applyImageFrame(QPixmap& icon);
-
-    /**
-     * Resizes the icon to \a maxSize if the icon size does not
-     * fit into the maximum size. The aspect ratio of the icon
-     * is kept.
-     */
-    void limitToSize(QPixmap& icon, const QSize& maxSize);
-
-    /**
-     * Starts a new preview job for the items \a to m_previewJobs
-     * and triggers the preview timer.
-     */
-    void startPreviewJob(const KFileItemList& items);
-
-    /** Kills all ongoing preview jobs. */
-    void killPreviewJobs();
-
-    /**
-     * Orders the items \a items in a way that the visible items
-     * are moved to the front of the list. When passing this
-     * list to a preview job, the visible items will get generated
-     * first.
-     */
-    void orderItems(KFileItemList& items);
-
-private:
-    /** Remembers the pixmap for an item specified by an URL. */
-    struct ItemInfo
-    {
-        KUrl url;
-        QPixmap pixmap;
-    };
-
-    bool m_showPreview;
-
-    /**
-     * True, if m_pendingItems and m_dispatchedItems should be
-     * cleared when the preview jobs have been finished.
-     */
-    bool m_clearItemQueues;
-
-    /**
-     * True if a selection has been done which should cut items.
-     */
-    bool m_hasCutSelection;
-
-    int m_pendingVisiblePreviews;
-
-    QAbstractItemView* m_view;
-    QTimer* m_previewTimer;
-    QTimer* m_scrollAreaTimer;
-    QList<KJob*> m_previewJobs;
-    KDirModel* m_dirModel;
-    KDirSortFilterProxyModel* m_proxyModel;
-
-    KMimeTypeResolver* m_mimeTypeResolver;
-
-    QList<ItemInfo> m_cutItemsCache;
-    QList<ItemInfo> m_previews;
-
-    /**
-     * Contains all items where a preview must be generated, but
-     * where the preview job has not dispatched the items yet.
-     */
-    KFileItemList m_pendingItems;
-
-    /**
-     * Contains all items, where a preview has already been
-     * generated by the preview jobs.
-     */
-    KFileItemList m_dispatchedItems;
-};
-
-inline bool IconManager::showPreview() const
-{
-    return m_showPreview;
-}
-
-#endif