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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 <grail.h>
#include <string.h>
#include <stdio.h>
#include <unistd.h>
#include <fcntl.h>
static int tp_get_clients(int x, int y, int screen,
grail_clientid_t *clients, int nclients)
{
return 0;
}
static void tp_event(struct grail *ge, const struct input_event *ev)
{
fprintf(stderr, "event %d %d %d\n", ev->type, ev->code, ev->value);
}
static void tp_gesture(struct grail *ge, const struct grail_event *ev)
{
fprintf(stderr, "gesture %d %d\n", ev->type, ev->id);
}
static void loop_device(struct grail *ge, int fd)
{
while (!grail_idle(ge, fd, 5000))
grail_pull(ge, fd);
}
#if 0
void grail_add_client(struct grail *ge, grail_clientid_t id,
const int *types, const int *priority, int ntypes);
void grail_remove_client(struct grail *ge, grail_clientid_t id);
#endif
int main(int argc, char *argv[])
{
struct grail ge;
int fd;
if (argc < 2) {
fprintf(stderr, "Usage: %s <device>\n", argv[0]);
return -1;
}
memset(&ge, 0, sizeof(ge));
ge.get_clients = tp_get_clients;
ge.event = tp_event;
ge.gesture = tp_gesture;
fd = open(argv[1], O_RDONLY | O_NONBLOCK);
if (fd < 0) {
fprintf(stderr, "error: could not open device\n");
return -1;
}
if (ioctl(fd, EVIOCGRAB, 1)) {
fprintf(stderr, "error: could not grab the device\n");
return -1;
}
if (grail_open(&ge, fd)) {
fprintf(stderr, "error: could not open touch device\n");
return -1;
}
loop_device(&ge, fd);
grail_close(&ge, fd);
ioctl(fd, EVIOCGRAB, 0);
close(fd);
return 0;
}
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