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/* The GIMP -- an image manipulation program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* 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 2 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, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef __GIMP_INK_H__
#define __GIMP_INK_H__
#include "gimppaintcore.h"
#include "gimpink-blob.h"
#define DIST_SMOOTHER_BUFFER 10
#define TIME_SMOOTHER_BUFFER 10
#define GIMP_TYPE_INK (gimp_ink_get_type ())
#define GIMP_INK(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GIMP_TYPE_INK, GimpInk))
#define GIMP_INK_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GIMP_TYPE_INK, GimpInkClass))
#define GIMP_IS_INK(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GIMP_TYPE_INK))
#define GIMP_IS_INK_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GIMP_TYPE_INK))
#define GIMP_INK_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_INK, GimpInkClass))
typedef struct _GimpInk GimpInk;
typedef struct _GimpInkClass GimpInkClass;
struct _GimpInk
{
GimpPaintCore parent_instance;
Blob *start_blob; /* starting blob (for undo) */
Blob *cur_blob; /* current blob */
Blob *last_blob; /* blob for last cursor position */
/* circular distance history buffer */
gdouble dt_buffer[DIST_SMOOTHER_BUFFER];
gint dt_index;
/* circular timing history buffer */
guint32 ts_buffer[TIME_SMOOTHER_BUFFER];
gint ts_index;
gdouble last_time; /* previous time of a motion event */
gboolean init_velocity;
};
struct _GimpInkClass
{
GimpPaintCoreClass parent_class;
};
void gimp_ink_register (Gimp *gimp,
GimpPaintRegisterCallback callback);
GType gimp_ink_get_type (void) G_GNUC_CONST;
#endif /* __GIMP_INK_H__ */
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