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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 __BOUNDARY_H__
#define __BOUNDARY_H__
/* half intensity for mask */
#define HALF_WAY 127
typedef enum
{
WithinBounds,
IgnoreBounds
} BoundaryType;
struct _BoundSeg
{
gint x1;
gint y1;
gint x2;
gint y2;
guint open : 1;
guint visited : 1;
};
BoundSeg * find_mask_boundary (PixelRegion *maskPR,
gint *num_elems,
BoundaryType type,
gint x1,
gint y1,
gint x2,
gint y2,
guchar threshold);
BoundSeg * sort_boundary (const BoundSeg *segs,
gint num_segs,
gint *num_groups);
BoundSeg * simplify_boundary (BoundSeg *stroke_segs,
gint num_groups,
gint *num_segs);
#endif /* __BOUNDARY_H__ */
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