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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>
*
****************************************************************************/
#include <gesture-dev.h>
#include <gesture-buffer.h>
#include <malloc.h>
#include <string.h>
#include <errno.h>
#define DIM_CLIENT 32
struct gedev_impl {
int nclient;
struct gesture_client *client[DIM_CLIENT];
};
int gedev_init(struct gesture_dev *dev, void *priv)
{
struct gedev_impl *x;
x = calloc(1, sizeof(*x));
if (!x)
return -ENOMEM;
dev->impl = x;
dev->priv = priv;
return 0;
}
int gedev_attach_client(struct gesture_dev *dev,
struct gesture_client *client)
{
struct gedev_impl *x = dev->impl;
if (x->nclient >= DIM_CLIENT)
return -ENOMEM;
x->client[x->nclient++] = client;
return 0;
}
void gedev_flag(struct gesture_dev *dev,
const struct gesture_flag *flag)
{
struct gedev_impl *x = dev->impl;
int i;
for (i = 0; i < x->nclient; i++)
client_flag(x->client[i], flag);
}
void gedev_event(struct gesture_dev *dev,
const struct gesture_event *ev)
{
struct gedev_impl *x = dev->impl;
int i;
for (i = 0; i < x->nclient; i++)
client_event(x->client[i], ev);
}
void gedev_sync(struct gesture_dev *dev)
{
struct gedev_impl *x = dev->impl;
int i;
for (i = 0; i < x->nclient; i++)
client_sync(x->client[i]);
}
void gedev_detach_client(struct gesture_dev *dev,
struct gesture_client *client)
{
struct gedev_impl *x = dev->impl;
int i, j;
for (i = 0; i < x->nclient; i++)
if (x->client[i] == client)
break;
if (i >= x->nclient)
return;
x->nclient--;
for (j = i; j < x->nclient; j++)
x->client[j] = x->client[j + 1];
for (j = x->nclient; j < DIM_CLIENT; j++)
x->client[j] = 0;
}
void gedev_destroy(struct gesture_dev *dev)
{
free(dev->impl);
memset(dev, 0, sizeof(*dev));
}
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