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/*****************************************************************************
*
* grail - Gesture Recognition And Instantiation Library
*
* Copyright (C) 2010 Canonical Ltd.
* Copyright (C) 2010 Henrik Rydberg <rydberg@bitmath.org>
*
* 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/>.
*
****************************************************************************/
#include "grail-inserter.h"
#include "grail-impl.h"
#include <math.h>
int grail_get_contacts(const struct grail *ge,
struct grail_contact *touch, int max_touch)
{
const struct touch_dev *dev = &ge->impl->dev;
const struct gesture_inserter *gin = ge->gin;
const struct touch_frame *frame = &dev->frame;
int i;
if (frame->nactive < max_touch)
max_touch = frame->nactive;
for (i = 0; i < max_touch; i++) {
struct grail_contact *t = &touch[i];
const struct touch *ct = frame->active[i];
t->id = ct->id;
t->tool_type = ct->tool_type;
t->pos.x = gin_prop_x(gin, ct->x);
t->pos.y = gin_prop_y(gin, ct->y);
t->touch_major = gin->scale_r * ct->touch_major;
t->touch_minor = gin->scale_r * ct->touch_minor;
t->width_major = gin->scale_r * ct->width_major;
t->width_minor = gin->scale_r * ct->width_minor;
t->angle = touch_angle(dev, ct->orientation);
t->pressure = touch_pressure(dev, ct->pressure);
}
return max_touch;
}
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