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/*
* ink.h
*
* Routines for handling Ink
*
* (c) 2002-2005 Thomas White <taw27@srcf.ucam.org>
* Part of TuxMessenger - GTK+-based MSN Messenger client
*
* This package 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; version 2 dated June, 1991.
*
* This package 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 package; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
*
*/
#ifndef INK_H
#define INK_H
typedef struct stru_inkpoint {
struct stru_inkpoint *next; /* Next point in linked list */
double x;
double y;
struct stru_inkpoint *prev; /* Previous point in linked list */
} InkPoint;
typedef struct stru_inkstroke {
struct stru_inkstroke *next; /* Next stroke in linked list */
InkPoint *points; /* Linked list of points. */
InkPoint *last_point; /* Last point in list (saves rescanning) */
} InkStroke;
/* Opaque! */
typedef struct {
InkStroke *strokes; /* Linked list of strokes */
InkStroke *last_stroke; /* Last stroke in list (saves rescanning) */
} Ink;
extern Ink *ink_new();
extern Ink *ink_new_from_isf(const char *isf);
extern void ink_destroy(Ink *ink);
extern InkStroke *ink_stroke_new(Ink *ink);
extern InkStroke *ink_stroke_get_last(Ink *ink);
extern InkPoint *ink_point_add(InkStroke *stroke, double x, double y);
extern InkPoint *ink_point_get_last(InkStroke *stroke);
extern InkPoint *ink_point_get_previous(InkPoint *point);
#endif /* INK_H */
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