1 /* Libart_LGPL - library of basic graphic primitives
2 * Copyright (C) 1998 Raph Levien
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Library General Public License for more details.
14 * You should have received a copy of the GNU Library General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 * Boston, MA 02111-1307, USA.
21 #include "art_rect_svp.h"
28 #define MAX(a, b) (((a) > (b)) ? (a) : (b))
32 #define MIN(a, b) (((a) < (b)) ? (a) : (b))
36 * art_drect_svp: Find the bounding box of a sorted vector path.
37 * @bbox: Where to store the bounding box.
40 * Finds the bounding box of the SVP.
43 art_drect_svp (ArtDRect *bbox, const ArtSVP *svp)
56 art_drect_copy (bbox, &svp->segs[0].bbox);
58 for (i = 1; i < svp->n_segs; i++)
60 bbox->x0 = MIN (bbox->x0, svp->segs[i].bbox.x0);
61 bbox->y0 = MIN (bbox->y0, svp->segs[i].bbox.y0);
62 bbox->x1 = MAX (bbox->x1, svp->segs[i].bbox.x1);
63 bbox->y1 = MAX (bbox->y1, svp->segs[i].bbox.y1);
68 * art_drect_svp_union: Compute the bounding box of the svp and union it in to the existing bounding box.
69 * @bbox: Initial boundin box and where to store the bounding box.
72 * Finds the bounding box of the SVP, computing its union with an
76 art_drect_svp_union (ArtDRect *bbox, const ArtSVP *svp)
80 art_drect_svp (&svp_bbox, svp);
81 art_drect_union (bbox, bbox, &svp_bbox);