/* gfxpoly.h
Various boolean polygon functions.
Part of the swftools package.
Copyright (c) 2005 Matthias Kramm
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 __gfxpoly_h__
#define __gfxpoly_h__
#ifdef __cplusplus
extern "C" {
#endif
#include
#include "mem.h"
#include "gfxdevice.h"
#include "gfxtools.h"
/* A "grid" value is the granularity at which polygon intersection operates.
It usually makes sense this to the smallest value that can actually be represented
in the output device (like 0.05 = 1 twip for SWF). */
#define DEFAULT_GRID (0.05)
typedef struct _gfxpoly {
} gfxpoly_t;
void gfxpoly_destroy(gfxpoly_t*poly);
/* constructors */
gfxpoly_t* gfxpoly_from_fill(gfxline_t*line, double gridsize);
gfxpoly_t* gfxpoly_from_stroke(gfxline_t*line, gfxcoord_t width, gfx_capType cap_style, gfx_joinType joint_style, gfxcoord_t miterLimit, double gridsize);
/* operators */
gfxpoly_t* gfxpoly_intersect(gfxpoly_t*p1, gfxpoly_t*p2);
gfxpoly_t* gfxpoly_union(gfxpoly_t*p1, gfxpoly_t*p2);
/* conversion functions */
gfxpoly_t* gfxpoly_createbox(double x1, double y1,double x2, double y2, double gridsize);
gfxline_t* gfxline_from_gfxpoly(gfxpoly_t*poly);
gfxline_t* gfxpoly_circular_to_evenodd(gfxline_t*line, double gridsize);
#ifdef __cplusplus
}
#endif
#endif //__gfxpoly_h__