notepad_thumbnail.h

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#ifndef __NOTEPAD_THUMBNAIL_H__
#define __NOTEPAD_THUMBNAIL_H__

/**
 * File Name  : notepad_thumbnail.h
 *
 * Description: save thumbnail of coverpage of note for contentbrowser
 */

/*
 * This file is part of notepad.
 *
 * notepad 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.
 *
 * notepad 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, see <http://www.gnu.org/licenses/>.
 */

/**
 * Copyright (C) 2010 IREX Technologies B.V.
 * All rights reserved.
 */

#include <libermetadb/ermetadb.h>
#include <gdk/gdk.h>
#include "notepad_pages.h"
#include "notepad_filestore.h"

namespace notepad
{
    class CThumbnail 
    {
        public:
            // Note: must be synchronised with table THUMBNAIL_COLUMNS[] in uds_mdb_manager.cpp.
            enum ThumbnailSize
            {
                THUMBNAIL_MINI = 0, // not used
                THUMBNAIL_SMALL,
                THUMBNAIL_MEDIUM,
                THUMBNAIL_LARGE, // not used
                THUMBNAIL_COUNT
            };

        public: // lifecycle
            CThumbnail();
            CThumbnail(CFileStore& filestore, CNotepadPages& pagecache, gint margin) 
                { storeThumbnail(filestore, pagecache, margin); };
            ~CThumbnail() {};

        private: // don'ts
            CThumbnail(const CThumbnail&);
            CThumbnail operator=(const CThumbnail&);


        //internals
        private:
            void        storeThumbnail(CFileStore& filestore, CNotepadPages& pagecache, gint margin);
            void        putPixel(GdkPixbuf* pb, gint x, gint y);
            void        enhance(GdkPixbuf* pb, gint width, gint height);
            void        drawRectangle(GdkPixbuf* pb, gint width, gint height);
            gint        getWidth(const ThumbnailSize size);
            gint        getHeight(const ThumbnailSize size);

    };
}


#endif // __NOTEPAD_THUMBNAIL_H__