mirror of https://github.com/GNOME/gimp.git
69 lines
2.5 KiB
C
69 lines
2.5 KiB
C
/* GIMP - The GNU 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 3 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, see <https://www.gnu.org/licenses/>.
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*/
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#ifndef __GIMP_BOUNDARY_H__
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#define __GIMP_BOUNDARY_H__
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/* half intensity for mask */
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#define GIMP_BOUNDARY_HALF_WAY 0.5
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typedef enum
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{
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GIMP_BOUNDARY_WITHIN_BOUNDS,
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GIMP_BOUNDARY_IGNORE_BOUNDS
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} GimpBoundaryType;
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struct _GimpBoundSeg
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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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GimpBoundSeg * gimp_boundary_find (GeglBuffer *buffer,
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const GeglRectangle *region,
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const Babl *format,
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GimpBoundaryType 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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gfloat threshold,
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gint *num_segs);
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GimpBoundSeg * gimp_boundary_sort (const GimpBoundSeg *segs,
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gint num_segs,
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gint *num_groups);
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GimpBoundSeg * gimp_boundary_simplify (GimpBoundSeg *sorted_segs,
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gint num_groups,
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gint *num_segs);
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/* offsets in-place */
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void gimp_boundary_offset (GimpBoundSeg *segs,
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gint num_segs,
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gint off_x,
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gint off_y);
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#endif /* __GIMP_BOUNDARY_H__ */
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