3de4d7263a
Add a transform matrix to GimpCanvasBoundary and get rid of the whole BoundSeg transform code in boundary.c and gimpbrushcore.c, it was impossible to get this right on that level. Also fix te extents of GimpCanvasBoundary os it leaves no artifacts.
67 lines
2.1 KiB
C
67 lines
2.1 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 <http://www.gnu.org/licenses/>.
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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 BOUNDARY_HALF_WAY 127
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typedef enum
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{
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BOUNDARY_WITHIN_BOUNDS,
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BOUNDARY_IGNORE_BOUNDS
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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 * boundary_find (PixelRegion *maskPR,
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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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gint *num_segs);
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BoundSeg * boundary_sort (const BoundSeg *segs,
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gint num_segs,
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gint *num_groups);
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BoundSeg * boundary_simplify (BoundSeg *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 boundary_offset (BoundSeg *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 /* __BOUNDARY_H__ */
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