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2003-10-01 Simon Budig <simon@gimp.org> * app/base/boundary.[ch]: a little bit of tweaking. * app/paint/gimppaintcore-stroke.c: Use it here too.
63 lines
1.7 KiB
C
63 lines
1.7 KiB
C
/* The GIMP -- an image manipulation program
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifndef __BOUNDARY_H__
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#define __BOUNDARY_H__
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/* half intensity for mask */
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#define HALF_WAY 127
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typedef enum
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{
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WithinBounds,
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IgnoreBounds
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} BoundaryType;
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struct _BoundSeg
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{
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gint x1;
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gint y1;
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gint x2;
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gint y2;
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guint open : 1;
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guint visited : 1;
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};
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BoundSeg * find_mask_boundary (PixelRegion *maskPR,
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gint *num_elems,
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BoundaryType type,
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gint x1,
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gint y1,
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gint x2,
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gint y2,
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guchar threshold);
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BoundSeg * sort_boundary (const BoundSeg *segs,
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gint num_segs,
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gint *num_groups);
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BoundSeg * simplify_boundary (BoundSeg *stroke_segs,
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gint num_groups,
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gint *num_segs);
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#endif /* __BOUNDARY_H__ */
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