ardour/gtk2_ardour/control_point.h

/*
    Copyright (C) 2002-2007 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 __ardour_control_point_h__
#define __ardour_control_point_h__

#include <sys/types.h>

#include <ardour/automation_list.h>

#include "canvas.h"
#include "simplerect.h"

class AutomationLine;
class ControlPoint;
class PointSelection;
class TimeAxisView;
class AutomationTimeAxisView;
class Selectable;
class Selection;

namespace Gnome {
	namespace Canvas {
		class SimpleRect;
		class Diamond;
	}
}

class ControlPoint 
{
  public:
	ControlPoint (AutomationLine& al);
	ControlPoint (const ControlPoint&, bool dummy_arg_to_force_special_copy_constructor);
	virtual ~ControlPoint ();

	enum ShapeType {
		Full,
		Start,
		End
	};
	
	void move_to (double x, double y, ShapeType);
	void reset (double x, double y, ARDOUR::AutomationList::iterator, uint32_t, ShapeType);
	double get_x() const { return _x; }
	double get_y() const { return _y; }

	void hide (); 
	void show ();
	void show_color (bool entered, bool hide_too);

	void set_size (double);
	void set_visible (bool);

	bool     can_slide() const          { return _can_slide; }
	void     set_can_slide(bool yn)     { _can_slide = yn; }
	bool     selected() const           { return _selected; }
	void     set_selected(bool yn)      { _selected = yn; }
	uint32_t view_index() const         { return _view_index; }
	void     set_view_index(uint32_t i) { _view_index = i; }
	
	ARDOUR::AutomationList::iterator model() const { return _model; }
	AutomationLine&                  line()  const { return _line; }
	ArdourCanvas::Item*              item()  const { return _item; }

  protected:
	ArdourCanvas::SimpleRect* _item;

	AutomationLine& _line;

	ARDOUR::AutomationList::iterator _model;
	uint32_t _view_index;
	bool     _can_slide;
	bool     _selected;

	virtual bool event_handler (GdkEvent*);

  private:
	double    _x;
	double    _y;
	double    _size;
	ShapeType _shape;
};


#endif /* __ardour_control_point_h__ */