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 /* This file is part of the KDE project
  * Copyright (C) 2006 Thomas Zander <zander@kde.org>
  * Copyright (C) 2007 Sebastian Sauer <mail@dipe.org>
  * Copyright (C) 2008 Thorsten Zachmann <zachmann@kde.org>
  * Copyright (C) 2008 Girish Ramakrishnan <girish@forwardbias.in>
  * Copyright (C) 2009-2011 KO GmbH <cbo@kogmbh.com>
  * Copyright (C) 2011-2012 Pierre Stirnweiss <pstirnweiss@googlemail.com>
  * Copyright (C) 2012 Gopalakrishna Bhat A <gopalakbhat@gmail.com>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library 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
  * Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public License
  * along with this library; see the file COPYING.LIB.  If not, write to
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  */
 
 #ifndef KOSTYLETHUMBNAILER_H
 #define KOSTYLETHUMBNAILER_H
 
 #include "kotextlayout_export.h"
 
 #include <QSize>
 
 class KoCharacterStyle;
 class KoParagraphStyle;
 
 class QImage;
 
 /**
  * Helper class to create (and cache) thumbnails of styles
  */
 class KOTEXTLAYOUT_EXPORT KoStyleThumbnailer
 {
 public:
     enum KoStyleThumbnailerFlag {
         NoFlags = 0,
         CenterAlignThumbnail = 1, ///< Vertically Center Align the layout of the thumbnail
                                   ///     i.e the layout is done at the center of the area
         UseStyleNameText = 2, ///< Use the style name as the text that is layouted inside the thumbnail
         ScaleThumbnailFont = 4 ///< If set, then when the layout size is more than the size available
                                ///  the font size is scaled down to fit the space available
     };
     Q_DECLARE_FLAGS(KoStyleThumbnailerFlags, KoStyleThumbnailerFlag)
 
     /**
      * Create a new style thumbnailer.
      */
     explicit KoStyleThumbnailer();
 
     /**
      * Destructor.
      */
     virtual ~KoStyleThumbnailer();
 
     /**
      * @returns a thumbnail representing the @param style, constrained into the @param size.
      * If there is no specified @param size, the thumbnail is the size specified with @fn setThumbnailSize or 250*48 pt if no size was provided.
      * If the given @param size is too small, the font size will be decreased, so the thumbnail fits.
      * The real font size is indicated in this case.
      * If @param recreateThumbnail is true, do not return the cached thumbnail if it exist, but recreate a new one.
      * The created thumbnail is cached.
      */
     QImage thumbnail(KoParagraphStyle *style,
                      const QSize &size = QSize(), bool recreateThumbnail = false,
                      KoStyleThumbnailerFlags flags =
                           KoStyleThumbnailerFlags(CenterAlignThumbnail | UseStyleNameText | ScaleThumbnailFont));
 
     /**
      * @returns a thumbnail representing the @param characterStyle applied on the given @param paragraphStyle, constrained into the @param size.
      * If there is no specified @param size, the thumbnail is the size specified with @fn setThumbnailSize or 250*48 pt if no size was provided.
      * If the given @param size is too small, the font size will be decreased, so the thumbnail fits.
      * The real font size is indicated in this case.
      * If @param recreateThumbnail is true, do not return the cached thumbnail if it exist, but recreate a new one.
      * The created thumbnail is cached.
      */
     QImage thumbnail(KoCharacterStyle *characterStyle, KoParagraphStyle *paragraphStyle = 0,
                      const QSize &size = QSize(), bool recreateThumbnail = false,
                      KoStyleThumbnailerFlags flags =
                           KoStyleThumbnailerFlags(CenterAlignThumbnail | UseStyleNameText | ScaleThumbnailFont));
 
     /**
      * Sets the size of the thumbnails returned by the @fn thumbnail with no size arguments.
      */
     void setThumbnailSize(const QSize &size);
 
     /**
      * Sets the text that will be layouted.
      * @param text The text that will be layouted inside the thumbnail
      *If the UseStyleNameText flag is set then this text will not be used
      */
     void setText(const QString &text);
 
     /**
      * remove all occurrences of the style from the cache
      */
     void removeFromCache(KoParagraphStyle *style);
 
     /**
      * remove all occurrences of the style from the cache
      */
     void removeFromCache(KoCharacterStyle *style);
 
 private:
     void layoutThumbnail(const QSize &size, QImage *im, KoStyleThumbnailerFlags flags);
     void removeFromCache(const QString &expr);
 
     class Private;
     Private* const d;
 };
 
 #endif