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/*****************************************************************************
*
* 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_H
#define _GRAIL_H
#include <grail-touch.h>
#define DIM_GESTURE_PROP 8
typedef int gesture_prop_t;
enum gesture_type {
GE_MOVE,
GE_VSCROLL,
DIM_GESTURE_TYPE
};
enum gesture_state {
GS_CANCEL,
GS_BEGIN,
GS_END
};
struct gesture_flag {
enum gesture_type type;
touch_time_t time;
enum gesture_state state;
};
struct gesture_event {
enum gesture_type type;
touch_time_t time;
gesture_prop_t prop[DIM_GESTURE_PROP];
};
struct gesture_dev {
struct gedev_impl *impl;
void *priv;
};
struct gesture_client {
void (*gesture)(struct gesture_client *client,
const struct gesture_event *ev);
int priority[DIM_GESTURE_TYPE];
struct client_impl *impl;
void *priv;
};
int client_init(struct gesture_client *client, void *priv);
void client_flag(struct gesture_client *client,
const struct gesture_flag *flag);
void client_event(struct gesture_client *client,
const struct gesture_event *ev);
void client_sync(struct gesture_client *client);
void client_destroy(struct gesture_client *client);
int gedev_init(struct gesture_dev *dev, void *priv);
int gedev_attach_client(struct gesture_dev *dev,
struct gesture_client *client);
void gedev_flag(struct gesture_dev *dev, const struct gesture_flag *flag);
void gedev_event(struct gesture_dev *dev, const struct gesture_event *ev);
void gedev_sync(struct gesture_dev *dev);
void gedev_detach_client(struct gesture_dev *dev,
struct gesture_client *client);
void gedev_destroy(struct gesture_dev *dev);
#endif
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