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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-recognizer.h"
#include <math.h>
#include <stdio.h>
static const int getype[DIM_TOUCH + 1] = {
-1,
GRAIL_TYPE_TOUCH1,
GRAIL_TYPE_TOUCH2,
GRAIL_TYPE_TOUCH3,
GRAIL_TYPE_TOUCH4,
GRAIL_TYPE_TOUCH5,
};
int gru_touch(struct grail *ge,
const struct utouch_frame *frame)
{
struct gesture_recognizer *gru = ge->gru;
struct combo_model *state = &gru->touch;
struct move_model *move = &gru->move;
if (frame->slot_revision != frame->prev->slot_revision) {
if (state->active) {
gru_end(ge, state->gid, move,
state->prop, state->nprop);
state->active = 0;
}
}
if (!state->active) {
int type = getype[move->ntouch];
if (type <= 0)
return 0;
state->gid = gin_gid_begin(ge, type, -PRIO_GESTURE, frame);
state->active = 1;
}
if (move->time - move->fm[FM_X].original_ms <= move->fm[FM_X].hold_ms)
return 0;
state->nprop = gin_add_contact_props(ge->gin, state->prop, frame);
gru_event(ge, state->gid, move, state->prop, state->nprop);
return 1;
}
int gru_wintouch(struct grail *ge,
const struct utouch_frame *frame)
{
struct gesture_recognizer *gru = ge->gru;
struct combo_model *state = &gru->wintouch;
struct move_model *move = &gru->move;
if (frame->slot_revision != frame->prev->slot_revision) {
if (state->active && out_of_bounds(state, move)) {
gru_end(ge, state->gid, move,
state->prop, state->nprop);
state->active = 0;
}
}
if (!state->active) {
if (move->ntouch == 4) {
state->gid = gin_gid_begin(ge, GRAIL_TYPE_MTOUCH,
-PRIO_META, frame);
state->mintouch = 1;
state->maxtouch = 4;
state->active = 1;
} else if (move->ntouch == 3) {
state->gid = gin_gid_begin(ge, GRAIL_TYPE_ETOUCH,
-PRIO_ENV, frame);
state->mintouch = 1;
state->maxtouch = 3;
state->active = 1;
} else {
return 0;
}
}
if (move->time - move->fm[FM_X].original_ms <= move->fm[FM_X].hold_ms)
return 0;
state->nprop = gin_add_contact_props(ge->gin, state->prop, frame);
gru_event(ge, state->gid, move, state->prop, state->nprop);
return 1;
}
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