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 /***************************************************************************
  *   Copyright (C) 2005-2014 by Linuxstopmotion contributors;              *
  *   see the AUTHORS file for details.                                     *
  *                                                                         *
  *   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.,                                       *
  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  ***************************************************************************/
 #ifndef MODELHANDLER_H
 #define MODELHANDLER_H
 
 #include <QObject>
 
 class FrameBar;
 class QStatusBar;
 class QFileDialog;
 class QPushButton;
 class QStringList;
 class QString;
 
 /**
  * This class handles request related to adding, removing and moving things
  * in the model.
  *
  * @author Bjoern Erik Nilsen & Fredrik Berg Kjoelstad
  */
 class ModelHandler : public QObject {
     Q_OBJECT
 public:
     /**
      * Creates and initializes the ModelHander.
      * @param parent the parent of the ModelHander.
      * @param sb a statusbar for displaying status information to the user.
      * @param frameBar the framebar containing the thumbnails
      * @param lastVisitedDir the last visited directory
      * @param name the name of the ModelHander
      */
     ModelHandler( QObject *parent = 0, QStatusBar *sb = 0, FrameBar *frameBar = 0,
             QString *lastVisitedDir = 0, const char *name = 0 );
 
     /**
      * Cleans up after the modelhandler.
      */
     ~ModelHandler();
 
     /**
      * Function for setting the button used for removing frames. This button is
      * needed for checking if it is enabled when attempting to remove frames with
      * the delete key.
      * @param removeFramesButton the button used for removing frames.
      */
     void setRemoveFramesButton(QPushButton *removeFramesButton);
 
 
 public slots:
     /**
      * Brings up a dialog so that the user can choose a file to load.
      */
     void chooseFrame();
 
     /**
      *Adds the file fileName to the animation through the use of
      *addFrames(QStringList).
      *@param fileName the file to be added to the animation.
      */
     void addFrame( const QString &fileName );
 
     /**
      * Removes the currently selected frame from the animation.
      */
     void removeFrames();
 
     /**
      * Adds the files to the animation.
      * @param fileNames the files to be added to the animation
      */
     void addFrames(const QStringList & fileNames);
 
 
     /**
      * Creates a new scene. This will be added after the selected frame.
      */
     void newScene();
 
     /**
      * Removes the active scene.
      */
     void removeScene();
 
      /**
      * Launch the gimp to edit the current frame.
      * @return 0 If successful, 1 on error.
      */
     int editCurrentFrame();
 
 private:
     FrameBar *frameBar;
     QStatusBar *statusBar;
     QPushButton *removeFramesButton;
     QFileDialog* fileDialog;
     QString *lastVisitedDir;
 
 signals:
     /**
      * Notified when the model is changed.
      */
     void modelChanged();
 };
 
 #endif