prepare class to simplify keeping binary compatibility

svn path=/trunk/KDE/kdebase/apps/; revision=863339

1 files changed, 11 insertions, 132 deletions

diff --git a/src/kfilepreviewgenerator.h b/src/kfilepreviewgenerator.h
index 6d720fefc..67f26a7e7 100644
--- a/src/kfilepreviewgenerator.h
+++ b/src/kfilepreviewgenerator.h
@@ -84,139 +84,18 @@ public:
     /** Cancels all pending previews. */
     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 KFilePreviewGenerator::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;
+    class Private;
+    Private* const d; /// @internal
+    Q_DISABLE_COPY(KFilePreviewGenerator)
+    
+    Q_PRIVATE_SLOT(d, void generatePreviews(const KFileItemList&))
+    Q_PRIVATE_SLOT(d, void addToPreviewQueue(const KFileItem&, const QPixmap&))
+    Q_PRIVATE_SLOT(d, void slotPreviewJobFinished(KJob*))
+    Q_PRIVATE_SLOT(d, void updateCutItems())
+    Q_PRIVATE_SLOT(d, void dispatchPreviewQueue())
+    Q_PRIVATE_SLOT(d, void pausePreviews())
+    Q_PRIVATE_SLOT(d, void resumePreviews())
 };
 
-inline bool KFilePreviewGenerator::showPreview() const
-{
-    return m_showPreview;
-}
-
 #endif