Traverso/cvs/traverso/src/commands/Fade.h

/*
Copyright (C) 2006 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.

$Id: Fade.h,v 1.13 2008/01/21 16:22:11 r_sijrier Exp $
*/

#ifndef FADE_H
#define FADE_H

#include "Command.h"

class Curve;
class AudioClip;
class FadeCurve;
class FadeView;
class SheetView;

class FadeRange : public Command
{
public :
        FadeRange(AudioClip* clip, FadeCurve* curve, qint64 scalefactor);
        FadeRange(AudioClip* clip, FadeCurve* curve, double newVal);
        ~FadeRange();

        int begin_hold();
        int finish_hold();
        int prepare_actions();
        int do_action();
        int undo_action();
        void cancel_action();

        int jog();
        
        void set_cursor_shape(int useX, int useY);

private :
        FadeCurve*      m_curve;
        double          m_origRange;
        double          m_newRange;
        class Private {
                public:
                        int origX;
                        int direction;
                        QPoint  mousePos;
                        qint64 scalefactor;
        };
        Private* d;
};


class FadeStrength : public Command
{
public :
        FadeStrength(FadeView* fadeview);
        FadeStrength(FadeCurve* fade, double val);
        ~FadeStrength(){};

        int begin_hold();
        int finish_hold();
        int prepare_actions();
        int do_action();
        int undo_action();
        void cancel_action();

        int jog();

        void set_cursor_shape(int useX, int useY);
        
private :
        float   oldValue;
        int     origY;
        double  origStrength;
        double  newStrength;
        FadeCurve*      m_fade;
        FadeView*       m_fv;
        QPoint          mousePos;
};


class FadeBend : public Command
{
public :
        FadeBend(FadeView* fadeview);
        FadeBend(FadeCurve* fade, double val);
        ~FadeBend(){};

        int begin_hold();
        int finish_hold();
        int prepare_actions();
        int do_action();
        int undo_action();
        void cancel_action();

        int jog();
        
        void set_cursor_shape(int useX, int useY);

private :
        float   oldValue;
        int     origY;
        double  origBend;
        double  newBend;
        FadeCurve*      m_fade;
        FadeView*       m_fv;
        QPoint          mousePos;
};


class FadeMode : public Command
{
public :
        FadeMode(FadeCurve* fade, int oldMode, int newMode);
        ~FadeMode(){};

        int prepare_actions();
        int do_action();
        int undo_action();

private :
        int             m_oldMode;
        int             m_newMode;
        FadeCurve*      m_fade;
};


#endif

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