/*****************************************************************************
 *
 * grail - Gesture Recognition And Instantiation Library
 *
 * Copyright (C) 2010 Canonical Ltd.
 *
 * 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 3 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, see <http://www.gnu.org/licenses/>.
 *
 * Authors:
 *      Henrik Rydberg <rydberg@bitmath.org>
 *
 ****************************************************************************/

#ifndef _GRAIL_GESTURES_H
#define _GRAIL_GESTURES_H

#include "grail-inserter.h"

struct move_model {
	float xfuzz, yfuzz, rfuzz, afuzz;
	float xbar, ybar, rbar, abar;
	float x, y, r, a;
	int ntouch;
};

void gru_init_motion(struct grail *ge,
		     const struct touch_dev_caps *caps);
void gru_reset_motion(struct grail *ge,
		      const struct touch_frame *frame);
void gru_compute_motion(struct grail *ge,
			const struct touch_frame *frame);

struct scroll_model {
	float x, y;
	int active, moving, geslot;
};

void gru_reset_scroll(struct grail *ge,
		      const struct touch_frame *frame);
int gru_scroll(struct grail *ge,
	       const struct touch_frame *frame);

struct zoom_model {
	float r;
	int active, zooming, geslot;
};

void gru_reset_zoom(struct grail *ge,
		    const struct touch_frame *frame);
int gru_zoom(struct grail *ge,
	     const struct touch_frame *frame);

struct rotate_model {
	float a;
	int active, rotating, geslot;
};

void gru_reset_rotate(struct grail *ge,
		      const struct touch_frame *frame);
int gru_rotate(struct grail *ge,
	       const struct touch_frame *frame);

struct combo_model {
	float x, y, r, a;
	int active, running, geslot;
};

void gru_reset_combo(struct grail *ge,
		     const struct touch_frame *frame);
int gru_combo(struct grail *ge,
	      const struct touch_frame *frame);

#endif