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/* This is dvipdfmx, an eXtended version of dvipdfm by Mark A. Wicks.
Copyright (C) 2002-2018 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 _PDFDEV_H_
#define _PDFDEV_H_
#include "numbers.h"
#include "pdfobj.h"
#include "pdfcolor.h"
typedef int spt_t;
typedef struct pdf_tmatrix
{
double a, b, c, d, e, f;
} pdf_tmatrix;
typedef struct pdf_rect
{
double llx, lly, urx, ury;
} pdf_rect;
typedef struct pdf_coord
{
double x, y;
} pdf_coord;
/* The name transform_info is misleading.
* I'll put this here for a moment...
*/
typedef struct
{
/* Physical dimensions
*
* If those values are given, images will be scaled
* and/or shifted to fit within a box described by
* those values.
*/
double width;
double height;
double depth;
pdf_tmatrix matrix; /* transform matrix */
pdf_rect bbox; /* user_bbox */
int flags;
} transform_info;
#define INFO_HAS_USER_BBOX (1 << 0)
#define INFO_HAS_WIDTH (1 << 1)
#define INFO_HAS_HEIGHT (1 << 2)
#define INFO_DO_CLIP (1 << 3)
#define INFO_DO_HIDE (1 << 4)
extern void transform_info_clear (transform_info *info);
/* Not in spt_t. */
extern int pdf_sprint_matrix (char *buf, const pdf_tmatrix *p);
extern int pdf_sprint_rect (char *buf, const pdf_rect *p);
extern int pdf_sprint_coord (char *buf, const pdf_coord *p);
extern int pdf_sprint_length (char *buf, double value);
extern int pdf_sprint_number (char *buf, double value);
/* unit_conv: multiplier for input unit (spt_t) to bp conversion.
* precision: How many fractional digits preserved in output (not real
* accuracy control).
* is_bw: Ignore color related special instructions.
*/
extern void pdf_init_device (double unit_conv, int precision, int is_bw);
extern void pdf_close_device (void);
/* returns 1.0/unit_conv */
extern double dev_unit_dviunit (void);
#if 0
/* DVI interpreter knows text positioning in relative motion.
* However, pdf_dev_set_string() recieves text string with placement
* in absolute position in user space, and it convert absolute
* positioning back to relative positioning. It is quite wasteful.
*
* TeX using DVI register stack operation to do CR and then use down
* command for LF. DVI interpreter knows hint for current leading
* and others (raised or lowered), but they are mostly lost in
* pdf_dev_set_string().
*/
typedef struct
{
int argc;
struct {
int is_kern; /* kern or string */
spt_t kern; /* negative kern means space */
int offset; /* offset to sbuf */
int length; /* length of string */
} args[];
unsigned char sbuf[PDF_STRING_LEN_MAX];
} pdf_text_string;
/* Something for handling raise, leading, etc. here. */
#endif
/* Draw texts and rules:
*
* xpos, ypos, width, and height are all fixed-point numbers
* converted to big-points by multiplying unit_conv (dvi2pts).
* They must be position in the user space.
*
* ctype:
* 0 - input string is in multi-byte encoding.
* 1 - input string is in 8-bit encoding.
* 2 - input string is in 16-bit encoding.
*/
extern void pdf_dev_set_string (spt_t xpos, spt_t ypos,
const void *instr_ptr, int instr_len,
spt_t text_width,
int font_id, int ctype);
extern void pdf_dev_set_rule (spt_t xpos, spt_t ypos,
spt_t width, spt_t height);
/* Place XObject */
extern int pdf_dev_put_image (int xobj_id,
transform_info *p, double ref_x, double ref_y);
/* The design_size and ptsize required by PK font support...
*/
extern int pdf_dev_locate_font (const char *font_name, spt_t ptsize);
/* The following two routines are NOT WORKING.
* Dvipdfmx doesn't manage gstate well..
*/
#if 0
/* pdf_dev_translate() or pdf_dev_concat() should be used. */
extern void pdf_dev_set_origin (double orig_x, double orig_y);
#endif
/* Always returns 1.0, please rename this. */
extern double pdf_dev_scale (void);
/* Access text state parameters. */
#if 0
extern int pdf_dev_currentfont (void); /* returns font_id */
extern double pdf_dev_get_font_ptsize (int font_id);
#endif
extern int pdf_dev_get_font_wmode (int font_id); /* ps: special support want this (pTeX). */
/* Text composition (direction) mode
* This affects only when auto_rotate is enabled.
*/
extern int pdf_dev_get_dirmode (void);
extern void pdf_dev_set_dirmode (int dir_mode);
/* Set rect to rectangle in device space.
* Unit conversion spt_t to bp and transformation applied within it.
*/
extern void pdf_dev_set_rect (pdf_rect *rect,
spt_t x_pos, spt_t y_pos,
spt_t width, spt_t height, spt_t depth);
/* Accessor to various device parameters.
*/
#define PDF_DEV_PARAM_AUTOROTATE 1
#define PDF_DEV_PARAM_COLORMODE 2
extern int pdf_dev_get_param (int param_type);
extern void pdf_dev_set_param (int param_type, int value);
/* Text composition mode is ignored (always same as font's
* writing mode) and glyph rotation is not enabled if
* auto_rotate is unset.
*/
#define pdf_dev_set_autorotate(v) pdf_dev_set_param(PDF_DEV_PARAM_AUTOROTATE, (v))
/*
* For pdf_doc, pdf_draw and others.
*/
/* Force reselecting font and color:
* XFrom (content grabbing) and Metapost support want them.
*/
extern void pdf_dev_reset_fonts (int newpage);
extern void pdf_dev_reset_color (int force);
/* Initialization of transformation matrix with M and others.
* They are called within pdf_doc_begin_page() and pdf_doc_end_page().
*/
extern void pdf_dev_bop (const pdf_tmatrix *M);
extern void pdf_dev_eop (void);
/* Text is normal and line art is not normal in dvipdfmx. So we don't have
* begin_text (BT in PDF) and end_text (ET), but instead we have graphics_mode()
* to terminate text section. pdf_dev_flushpath() and others call this.
*/
extern void graphics_mode (void);
extern void pdf_dev_get_coord(double *xpos, double *ypos);
extern void pdf_dev_push_coord(double xpos, double ypos);
extern void pdf_dev_pop_coord(void);
extern void pdf_dev_begin_actualtext (uint16_t *unicodes, int len);
extern void pdf_dev_end_actualtext ();
#endif /* _PDFDEV_H_ */
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