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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 CAMERAHANDLER_H
 #define CAMERAHANDLER_H
 
 #include <QObject>
 #include "src/domain/animation/workspacefile.h"
 
 class FrameView;
 class ModelHandler;
 
 class QPushButton;
 class QStatusBar;
 class QTimer;
 
 /**
  *
  *@author Bjoern Erik Nilsen & Fredrik Berg Kjoelstad
  */
 class CameraHandler : public QObject
 {
     Q_OBJECT
 public:
     /**
      * Constructor for setting up the camerahandler.
      * @param parent the parent widget
      * @param sb the statusbar for updates
      * @param modelHandler for adding frames when capturing.
      * @param name the name of the object
      */
     CameraHandler ( QObject *parent = 0, QStatusBar *sb = 0, 
             ModelHandler* modelHandler = 0, const char *name = 0);
     
     ~CameraHandler();
 
     void setCameraButton( QPushButton *cameraButton );
     void setFrameView(FrameView *frameView);
     
     /**
      * Sets the viewing mode which is the type of effect used when running the camera.
      * @param mode the type of effect to be showed on the video. The modes are:
      *             0: Image mixing/onion skinning
      *             1: Image differentiating
      *             2: Playback
      * @return true if the change was successful
      */
     bool setViewMode(int mode);
     
     /**
      * Checks if the camera is on.
      * @return true if the camera is on.
      */
     bool isCameraRunning();
 
 public slots:
     void toggleCamera();
     void captureFrame();
     
     /**
      * Slot to receive a message when the videoView are finished setting up the
      * camera.
      */
     void switchToVideoView();
     
 private:
     QStatusBar *statusBar;
     QPushButton *cameraButton;
     QTimer *timer;
     WorkspaceFile capturedFile;
     bool isCameraOn;
     ModelHandler *modelHandler;
     
     FrameView *frameView;
     
     void cameraOn();
     void cameraOff();
 
 private slots:
     /**
      * Slot called by the timer which checks if the frame has been fully captured.
      */
     void storeFrame();
     
     void setMixCount(int mixCount);
     
     void setPlaybackSpeed(int playBackSpeed);
     
 signals:
     void capturedFrame();
     
     /**
      * This signal is emitted when the state of the camera is changed.
      * @param isActivated true if the camera has been activated.
      */
     void cameraStateChanged(bool isActivated);
     
 };
 
 #endif