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/* pdflistout.h
Copyright 2009 Taco Hoekwater <taco@luatex.org>
This file is part of LuaTeX.
LuaTeX 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.
LuaTeX 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 Lesser General Public
License for more details.
You should have received a copy of the GNU General Public License along
with LuaTeX; if not, see <http://www.gnu.org/licenses/>. */
/* $Id: pdflistout.h 3386 2010-01-26 06:41:37Z taco $ */
#ifndef PDFLISTOUT_H
# define PDFLISTOUT_H
/* a few small helpers */
# define pos_right(A) pdf->posstruct->pos.h = pdf->posstruct->pos.h + (A)
# define pos_left(A) pdf->posstruct->pos.h = pdf->posstruct->pos.h - (A)
# define pos_up(A) pdf->posstruct->pos.v = pdf->posstruct->pos.v + (A)
# define pos_down(A) pdf->posstruct->pos.v = pdf->posstruct->pos.v - (A)
typedef void (*backend_function) (); /* variadic arguments */
typedef struct {
char *name; /* name of the backend */
backend_function *node_fu; /* array of node output functions */
backend_function *whatsit_fu; /* array of whatsit output functions */
} backend_struct;
extern pos_info_structure pos_info;
extern backend_function *backend_out;
extern backend_function *backend_out_whatsit;
extern void init_backend_functionpointers(output_mode o_mode);
extern void hlist_out(PDF pdf, halfword this_box);
extern void vlist_out(PDF pdf, halfword this_box);
extern void out_what(PDF pdf, halfword p);
#endif
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