gimp/app/blob.h
Owen Taylor b0e08ede22 Added new files for handling scan-converted convex polygons. (From gsumi)
Sun Jun 14 18:37:06 1998  Owen Taylor  <otaylor@gtk.org>

	* Makefile.am app/blob.[ch] (blob_bounds): Added new files for
	handling scan-converted convex polygons. (From
	gsumi) (these will be moved out to a plug-in tool directory
	when such a thing exists)

	* app/ink.[ch]: New tool for drawing with a hard-edged
	pressure and tilt-sensitive brush.

	* gimprc.c interface.c paint_core.c pixmaps.h tools.[ch]
	All the modifications for adding a new tool. We need
	to fix this.
1998-06-14 22:42:36 +00:00

48 lines
1.4 KiB
C

/* blob.h: routines for manipulating scan converted convex
* polygons.
*
* Copyright 1998, Owen Taylor <otaylor@gtk.org>
*
* > Please contact the above author before modifying the copy <
* > of this file in the GIMP distribution. Thanks. <
*
* 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 __BLOB_H__
#define __BLOB_H__
typedef struct _BlobSpan BlobSpan;
typedef struct _Blob Blob;
struct _BlobSpan {
int left;
int right;
};
struct _Blob {
int y;
int height;
BlobSpan data[0]; /* slightly in violation of ANSI-C? */
};
Blob *blob_convex_union (Blob *b1, Blob *b2);
Blob *blob_ellipse (double xc, double yc, double xp, double yp, double xq, double yq);
void blob_bounds(Blob *b, int *x, int *y, int *width, int *height);
#endif __BLOB_H__