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/*
This is dvipdfmx, an eXtended version of dvipdfm by Mark A. Wicks.
Copyright (C) 2002-2012 by Jin-Hwan Cho and Shunsaku Hirata,
the dvipdfmx project team.
Copyright (C) 1998, 1999 by Mark A. Wicks <mwicks@kettering.edu>
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 _PDF_DRAW_H_
#define _PDF_DRAW_H_
#include "pdfcolor.h"
#include "pdfdev.h"
#define PDF_DASH_SIZE_MAX 16
#define PDF_GSAVE_MAX 256
extern void pdf_dev_init_gstates (void);
extern void pdf_dev_clear_gstates (void);
#define pdf_copymatrix(m,n) do {\
(m)->a = (n)->a; (m)->b = (n)->b;\
(m)->c = (n)->c; (m)->d = (n)->d;\
(m)->e = (n)->e; (m)->f = (n)->f;\
} while (0)
#define pdf_setmatrix(m,p,q,r,s,t,u) do {\
(m)->a = (p); (m)->b = (q);\
(m)->c = (r); (m)->d = (s);\
(m)->e = (t); (m)->f = (u);\
} while (0)
/* m -> n x m */
#define pdf_concatmatrix(m,n) do {\
double _tmp_a, _tmp_b, _tmp_c, _tmp_d; \
_tmp_a = (m)->a; _tmp_b = (m)->b; \
_tmp_c = (m)->c; _tmp_d = (m)->d; \
(m)->a = ((n)->a) * _tmp_a + ((n)->b) * _tmp_c; \
(m)->b = ((n)->a) * _tmp_b + ((n)->b) * _tmp_d; \
(m)->c = ((n)->c) * _tmp_a + ((n)->d) * _tmp_c; \
(m)->d = ((n)->c) * _tmp_b + ((n)->d) * _tmp_d; \
(m)->e += ((n)->e) * _tmp_a + ((n)->f) * _tmp_c; \
(m)->f += ((n)->e) * _tmp_b + ((n)->f) * _tmp_d; \
} while (0)
typedef struct pdf_path_ pdf_path;
extern int pdf_dev_currentmatrix (pdf_tmatrix *M);
extern int pdf_dev_currentpoint (pdf_coord *cp);
extern int pdf_dev_setlinewidth (double width);
extern int pdf_dev_setmiterlimit (double mlimit);
extern int pdf_dev_setlinecap (int style);
extern int pdf_dev_setlinejoin (int style);
extern int pdf_dev_setdash (int count,
double *pattern,
double offset);
#if 0
extern int pdf_dev_setflat (int flatness);
#endif
/* Path Construction */
extern int pdf_dev_moveto (double x , double y);
extern int pdf_dev_rmoveto (double x , double y);
extern int pdf_dev_closepath (void);
extern int pdf_dev_lineto (double x0 , double y0);
extern int pdf_dev_rlineto (double x0 , double y0);
extern int pdf_dev_curveto (double x0 , double y0,
double x1 , double y1,
double x2 , double y2);
extern int pdf_dev_rcurveto (double x0 , double y0,
double x1 , double y1,
double x2 , double y2);
extern int pdf_dev_arc (double c_x, double c_y, double r,
double a_0, double a_1);
extern int pdf_dev_arcn (double c_x, double c_y, double r,
double a_0, double a_1);
#define PDF_FILL_RULE_NONZERO 0
#define PDF_FILL_RULE_EVENODD 1
extern int pdf_dev_newpath (void);
/* Path Painting */
extern int pdf_dev_clip (void);
extern int pdf_dev_eoclip (void);
#if 0
extern int pdf_dev_rectstroke (double x, double y,
double w, double h,
const pdf_tmatrix *M /* optional */
);
#endif
extern int pdf_dev_rectfill (double x, double y, double w, double h);
extern int pdf_dev_rectclip (double x, double y, double w, double h);
extern int pdf_dev_flushpath (char p_op, int fill_rule);
#define pdf_dev_fill() pdf_dev_flushpath('f', PDF_FILL_RULE_NONZERO)
#define pdf_dev_eofill() pdf_dev_flushpath('f', PDF_FILL_RULE_EVENODD)
#define pdf_dev_stroke() pdf_dev_flushpath('S', PDF_FILL_RULE_NONZERO)
#define pdf_dev_fillstroke() pdf_dev_flushpath('B', PDF_FILL_RULE_NONZERO)
extern int pdf_dev_concat (const pdf_tmatrix *M);
/* NULL pointer of M mean apply current transformation */
extern void pdf_dev_dtransform (pdf_coord *p, const pdf_tmatrix *M);
extern void pdf_dev_idtransform (pdf_coord *p, const pdf_tmatrix *M);
extern void pdf_dev_transform (pdf_coord *p, const pdf_tmatrix *M);
#if 0
extern void pdf_dev_itransform (pdf_coord *p, const pdf_tmatrix *M);
#endif
extern int pdf_dev_gsave (void);
extern int pdf_dev_grestore (void);
/* Requires from mpost.c because new MetaPost graphics must initialize
* the current gstate. */
extern int pdf_dev_push_gstate (void);
extern int pdf_dev_pop_gstate (void);
/* extension */
extern int pdf_dev_arcx (double c_x, double c_y,
double r_x, double r_y,
double a_0, double a_1,
int a_d, /* arc direction */
double xar /* x-axis-rotation */
);
extern int pdf_dev_bspline (double x0, double y0,
double x1, double y1,
double x2, double y2);
extern void pdf_invertmatrix (pdf_tmatrix *M);
/* The depth here is the depth of q/Q nesting.
* We must remember current depth of nesting when starting a page or xform,
* and must recover until that depth at the end of page/xform.
*/
extern int pdf_dev_current_depth (void);
extern void pdf_dev_grestore_to (int depth);
#define pdf_dev_grestoreall() pdf_dev_grestore_to(0);
extern void pdf_dev_set_color (const pdf_color *color, char mask, int force);
#define pdf_dev_set_strokingcolor(c) pdf_dev_set_color(c, 0, 0);
#define pdf_dev_set_nonstrokingcolor(c) pdf_dev_set_color(c, 0x20, 0);
extern void pdf_dev_reset_color (int force);
#endif /* _PDF_DRAW_H_ */
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