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/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995-1999 Spencer Kimball and Peter Mattis
*
* gimpink-blob.h: routines for manipulating scan converted convex polygons.
* Copyright 1998, Owen Taylor <otaylor@gtk.org>
*
* 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 3 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, see <https://www.gnu.org/licenses/>.
*
*/
#ifndef __GIMP_INK_BLOB_H__
#define __GIMP_INK_BLOB_H__
typedef struct _GimpBlobPoint GimpBlobPoint;
typedef struct _GimpBlobSpan GimpBlobSpan;
typedef struct _GimpBlob GimpBlob;
typedef GimpBlob * (* GimpBlobFunc) (gdouble xc,
gdouble yc,
gdouble xp,
gdouble yp,
gdouble xq,
gdouble yq);
struct _GimpBlobPoint
{
gint x;
gint y;
};
struct _GimpBlobSpan
{
gint left;
gint right;
};
struct _GimpBlob
{
gint y;
gint height;
GimpBlobSpan data[1];
};
GimpBlob * gimp_blob_polygon (GimpBlobPoint *points,
gint n_points);
GimpBlob * gimp_blob_square (gdouble xc,
gdouble yc,
gdouble xp,
gdouble yp,
gdouble xq,
gdouble yq);
GimpBlob * gimp_blob_diamond (gdouble xc,
gdouble yc,
gdouble xp,
gdouble yp,
gdouble xq,
gdouble yq);
GimpBlob * gimp_blob_ellipse (gdouble xc,
gdouble yc,
gdouble xp,
gdouble yp,
gdouble xq,
gdouble yq);
void gimp_blob_bounds (GimpBlob *b,
gint *x,
gint *y,
gint *width,
gint *height);
GimpBlob * gimp_blob_convex_union (GimpBlob *b1,
GimpBlob *b2);
GimpBlob * gimp_blob_duplicate (GimpBlob *b);
#endif /* __GIMP_INK_BLOB_H__ */
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