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79 lines
2.2 KiB
C
79 lines
2.2 KiB
C
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/* Libart_LGPL - library of basic graphic primitives
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* Copyright (C) 1998 Raph Levien
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __ART_RECT_H__
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#define __ART_RECT_H__
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct _ArtDRect ArtDRect;
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typedef struct _ArtIRect ArtIRect;
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struct _ArtDRect {
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/*< public >*/
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double x0, y0, x1, y1;
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};
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struct _ArtIRect {
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/*< public >*/
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int x0, y0, x1, y1;
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};
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/* Make a copy of the rectangle. */
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void art_irect_copy (ArtIRect *dest, const ArtIRect *src);
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/* Find the smallest rectangle that includes both source rectangles. */
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void art_irect_union (ArtIRect *dest,
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const ArtIRect *src1, const ArtIRect *src2);
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/* Return the intersection of the two rectangles */
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void art_irect_intersect (ArtIRect *dest,
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const ArtIRect *src1, const ArtIRect *src2);
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/* Return true if the rectangle is empty. */
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int art_irect_empty (const ArtIRect *src);
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/* Make a copy of the rectangle. */
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void art_drect_copy (ArtDRect *dest, const ArtDRect *src);
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/* Find the smallest rectangle that includes both source rectangles. */
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void art_drect_union (ArtDRect *dest,
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const ArtDRect *src1, const ArtDRect *src2);
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/* Return the intersection of the two rectangles */
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void art_drect_intersect (ArtDRect *dest,
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const ArtDRect *src1, const ArtDRect *src2);
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/* Return true if the rectangle is empty. */
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int art_drect_empty (const ArtDRect *src);
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void
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art_drect_affine_transform (ArtDRect *dst, const ArtDRect *src,
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const double matrix[6]);
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void art_drect_to_irect (ArtIRect *dst, ArtDRect *src);
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#ifdef __cplusplus
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}
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#endif
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#endif
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