projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| c34a149e WJ |
1 | /* Copyright (C) 1989, 1992 Aladdin Enterprises. All rights reserved. |
| 2 | Distributed by Free Software Foundation, Inc. | |
| 3 | ||
| 4 | This file is part of Ghostscript. | |
| 5 | ||
| 6 | Ghostscript is distributed in the hope that it will be useful, but | |
| 7 | WITHOUT ANY WARRANTY. No author or distributor accepts responsibility | |
| 8 | to anyone for the consequences of using it or for whether it serves any | |
| 9 | particular purpose or works at all, unless he says so in writing. Refer | |
| 10 | to the Ghostscript General Public License for full details. | |
| 11 | ||
| 12 | Everyone is granted permission to copy, modify and redistribute | |
| 13 | Ghostscript, but only under the conditions described in the Ghostscript | |
| 14 | General Public License. A copy of this license is supposed to have been | |
| 15 | given to you along with Ghostscript so you can know your rights and | |
| 16 | responsibilities. It should be in a file named COPYING. Among other | |
| 17 | things, the copyright notice and this notice must be preserved on all | |
| 18 | copies. */ | |
| 19 | ||
| 20 | /* gspath.h */ | |
| 21 | /* Path manipulation interface for GhostScript library */ | |
| 22 | /* Requires gsstate.h */ | |
| 23 | ||
| 24 | /* Path constructors */ | |
| 25 | extern int gs_newpath(P1(gs_state *)), | |
| 26 | gs_moveto(P3(gs_state *, floatp, floatp)), | |
| 27 | gs_rmoveto(P3(gs_state *, floatp, floatp)), | |
| 28 | gs_lineto(P3(gs_state *, floatp, floatp)), | |
| 29 | gs_rlineto(P3(gs_state *, floatp, floatp)), | |
| 30 | gs_arc(P6(gs_state *, floatp, floatp, floatp, floatp, floatp)), | |
| 31 | gs_arcn(P6(gs_state *, floatp, floatp, floatp, floatp, floatp)), | |
| 32 | gs_arcto(P7(gs_state *, floatp, floatp, floatp, floatp, floatp, float [4])), | |
| 33 | gs_curveto(P7(gs_state *, floatp, floatp, floatp, floatp, floatp, floatp)), | |
| 34 | gs_rcurveto(P7(gs_state *, floatp, floatp, floatp, floatp, floatp, floatp)), | |
| 35 | gs_closepath(P1(gs_state *)); | |
| 36 | ||
| 37 | /* Add the current path to the path in the previous graphics state. */ | |
| 38 | extern int gs_upmergepath(P1(gs_state *)); | |
| 39 | ||
| 40 | /* Path accessors and transformers */ | |
| 41 | extern int gs_currentpoint(P2(const gs_state *, gs_point *)), | |
| 42 | gs_pathbbox(P2(gs_state *, gs_rect *)), | |
| 43 | gs_flattenpath(P1(gs_state *)), | |
| 44 | gs_reversepath(P1(gs_state *)), | |
| 45 | gs_strokepath(P1(gs_state *)); | |
| 46 | ||
| 47 | /* Path enumeration */ | |
| 48 | #define gs_pe_moveto 1 | |
| 49 | #define gs_pe_lineto 2 | |
| 50 | #define gs_pe_curveto 3 | |
| 51 | #define gs_pe_closepath 4 | |
| 52 | typedef struct gs_path_enum_s gs_path_enum; | |
| 53 | extern const uint gs_path_enum_sizeof; | |
| 54 | void gs_path_enum_init(P2(gs_path_enum *, const gs_state *)); | |
| 55 | int gs_path_enum_next(P2(gs_path_enum *, gs_point [3])); /* 0 when done */ | |
| 56 | ||
| 57 | /* Clipping */ | |
| 58 | extern int gs_clippath(P1(gs_state *)), | |
| 59 | gs_initclip(P1(gs_state *)), | |
| 60 | gs_clip(P1(gs_state *)), | |
| 61 | gs_eoclip(P1(gs_state *)); |