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/*
Copyright (C) 2003 Paul Davis
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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef __gtk_ardour_crossfade_view_h__
#define __gtk_ardour_crossfade_view_h__
#include <vector>
#include <libgnomecanvasmm.h>
#include <sigc++/signal.h>
#include <ardour/crossfade.h>
#include "time_axis_view_item.h"
class RouteTimeAxisView;
class AudioRegionView;
struct CrossfadeView : public TimeAxisViewItem
{
CrossfadeView (ArdourCanvas::Group*,
RouteTimeAxisView&,
boost::shared_ptr<ARDOUR::Crossfade>,
double initial_samples_per_unit,
Gdk::Color& basic_color,
AudioRegionView& leftview,
AudioRegionView& rightview);
~CrossfadeView ();
boost::shared_ptr<ARDOUR::Crossfade> crossfade; // ok, let 'em have it
AudioRegionView& left_view; // and these too
AudioRegionView& right_view;
void set_height (double);
bool valid() const { return _valid; }
bool visible() const { return _visible; }
void set_valid (bool yn);
static sigc::signal<void,CrossfadeView*> GoingAway;
AudioRegionView& upper_regionview () const;
void fake_hide ();
void hide ();
void show ();
protected:
void reset_width_dependent_items (double pixel_width);
private:
bool _valid;
bool _visible;
double spu;
double _y_position;
double _height;
ArdourCanvas::Item *overlap_rect;
ArdourCanvas::Line *fade_in;
ArdourCanvas::Line *fade_out;
ArdourCanvas::Item *active_button;
void crossfade_changed (ARDOUR::Change);
void active_changed ();
void redraw_curves ();
void color_handler ();
};
#endif /* __gtk_ardour_crossfade_view_h__ */
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