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/*
* Copyright (c) 2009, Thomas Jaeger <ThJaeger@gmail.com>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef __STROKE_H__
#define __STROKE_H__
#ifdef __cplusplus
extern "C" {
#endif
struct _stroke_t;
typedef struct _stroke_t stroke_t;
stroke_t *stroke_alloc(int n);
void stroke_add_point(stroke_t *stroke, double x, double y);
void stroke_finish(stroke_t *stroke);
void stroke_free(stroke_t *stroke);
int stroke_get_size(const stroke_t *stroke);
void stroke_get_point(const stroke_t *stroke, int n, double *x, double *y);
double stroke_get_time(const stroke_t *stroke, int n);
double stroke_get_angle(const stroke_t *stroke, int n);
double stroke_angle_difference(const stroke_t *a, const stroke_t *b, int i, int j);
double stroke_compare(const stroke_t *a, const stroke_t *b, int *path_x, int *path_y);
extern const double stroke_infinity;
ClutterGestureSlideDirection st_gesture_process(void *handle,
GSList *list, guint num);
void *s_plugin_init();
void s_plugin_shutdown(void *handle);
#ifdef __cplusplus
}
#endif
#endif
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