Traverso/cvs/traverso/src/sheetcanvas/Cursors.h

/*
    Copyright (C) 2005-2007 Remon Sijrier 
 
    This file is part of Traverso
 
    Traverso 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., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA.
 
*/

#ifndef CURSORS_H
#define CURSORS_H

#include "ViewItem.h"
#include <QTimer>
#include <QTimeLine>

class Sheet;
class SheetView;
class ClipsViewPort;
                
class PlayHead : public ViewItem
{
        Q_OBJECT

public:
        PlayHead(SheetView* sv, Sheet* sheet, ClipsViewPort* vp);
        ~PlayHead();

        void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget);
        void set_bounding_rect(QRectF rect);
        
        bool is_active();
        void set_active(bool active);
        
        enum PlayHeadMode {
                FLIP_PAGE,
                CENTERED,
                ANIMATED_FLIP_PAGE
        };
        
        void set_mode(PlayHeadMode mode);
        void toggle_follow();

private:
        Sheet*          m_sheet;
        QTimer          m_playTimer;
        QTimeLine       m_animation;
        ClipsViewPort*  m_vp;
        bool            m_follow;
        bool            m_followDisabled;
        PlayHeadMode    m_mode;
        int             m_animationScrollStartPos;
        int             m_animFrameRange;
        qreal           m_animScaleFactor;
        
private slots:
        void check_config();
        void play_start();
        void play_stop();
        void set_animation_value(int);
        void animation_finished();
        
public slots:
        void update_position();
        void enable_follow();  // enable/disable follow only do anything if following is
        void disable_follow(); // enabled in the config
};



class WorkCursor : public ViewItem
{
        Q_OBJECT

public:
        WorkCursor(SheetView* sv, Sheet* sheet);
        ~WorkCursor();

        void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget);
        void set_bounding_rect(QRectF rect);

private:
        Sheet*          m_sheet;
        SheetView*      m_sv;
        QPixmap         m_pix;
        
        void update_background();

public slots:
        void update_position();
};


#endif

//eof

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