Traverso/cvs/traverso/src/sheetcanvas/FadeView.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: FadeView.h,v 1.2 2008/05/24 17:27:49 r_sijrier Exp $
*/

#ifndef FADE_VIEW_H
#define FADE_VIEW_H

#include "ViewItem.h"

class Curve;
class FadeCurve;
class AudioClipView;

class FadeView : public ViewItem
{
        Q_OBJECT
        
        Q_CLASSINFO("bend", tr("Adjust Bend"))
        Q_CLASSINFO("strength", tr("Adjust Strength"))
        Q_CLASSINFO("select_fade_shape", tr("Select Preset"))
        
public:
        FadeView(SheetView* sv, AudioClipView* parent, FadeCurve* fadeCuve);
        ~FadeView();
        
        void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget);
        int get_vector(int xstart, int pixelcount, float * arg);
        void calculate_bounding_rect();
        void set_holding(bool hold);
        
        FadeCurve* get_fade() const {return m_fadeCurve;}
        
        void load_theme_data();

private:
        FadeCurve*      m_fadeCurve;
        Curve*          m_guicurve;
        bool            m_holdactive;
        
public slots:
        void state_changed();
        
        Command* bend();
        Command* strength();
        Command* select_fade_shape();
//      Command* edit_properties();

signals :
        // emit from the gui so that we can stop following the playhead only
        // when the user manually edits, not on undo/redo
        void fadeModified();
};


#endif

//eof

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