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Diffstat (limited to 'Build/source/texk/xdvik/dvi-draw.h')
-rw-r--r-- | Build/source/texk/xdvik/dvi-draw.h | 160 |
1 files changed, 160 insertions, 0 deletions
diff --git a/Build/source/texk/xdvik/dvi-draw.h b/Build/source/texk/xdvik/dvi-draw.h new file mode 100644 index 00000000000..bacb8a721f6 --- /dev/null +++ b/Build/source/texk/xdvik/dvi-draw.h @@ -0,0 +1,160 @@ +/* + * Copyright (c) 1990-2004 Paul Vojta and the xdvik development team + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to + * deal in the Software without restriction, including without limitation the + * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or + * sell copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * PAUL VOJTA OR ANY OTHER AUTHOR OF THIS SOFTWARE BE LIABLE FOR ANY CLAIM, + * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + */ + +#ifndef DVI_DRAW_H_ +#define DVI_DRAW_H_ + +#include "xdvi-config.h" +#include "xdvi.h" + + +extern void prescan(FILE *fp); + + +/* forward declarations */ +struct font; +struct tn; + +/* this information is saved when using virtual fonts */ +struct drawinf { + struct framedata data; + struct font *fontp; + set_char_proc set_char_p; + unsigned long tn_table_len; + struct font **tn_table; + struct tn *tn_head; + ubyte *pos, *end; /* pointers to a scan buffer defined in dvi-draw.c */ + struct font *virtual; +#ifdef TEXXET + int dir; +#endif +}; + +struct src_parsed_special { + int line; + int col; + char *filename; + size_t filename_len; +}; +extern void src_parse(const char *str, int str_len, struct src_parsed_special *parsed); + +/* + * pixel_conv is currently used only for converting absolute positions + * to pixel values; although normally it should be + * + * ((int) ((x) / currwin.shrinkfactor + (1 << 15) >> 16)), + * + * the rounding is achieved instead by moving the constant 1 << 15 to + * PAGE_OFFSET in dvi-draw.c. + */ + +#define pixel_conv(x) ((int) ((x) / currwin.shrinkfactor >> 16)) +#define pixel_round(x) ((int) ROUNDUP(x, currwin.shrinkfactor << 16)) + +/* entries below with the characters 'dvi' in them are actually stored in + scaled pixel units */ + +#define DVI_H currinf.data.dvi_h +#define PXL_H pixel_conv(currinf.data.dvi_h) +#define DVI_V currinf.data.dvi_v +#define PXL_V currinf.data.pxl_v +#define WW currinf.data.w +#define XX currinf.data.x +#define YY currinf.data.y +#define ZZ currinf.data.z + +extern void draw_page(void); +extern void source_reverse_search(int, int, wide_bool); +extern void source_special_show(wide_bool); +extern void source_forward_search(const char *); + +extern void anchor_search(const char *str); + +#ifdef T1LIB +extern void init_t1(void); +extern void add_T1_mapentry(int lineno, const char *mapfile, const char *name, const char *file, const char *vec, char *psec); +extern void read_T1_char(struct font *, wide_ubyte); +extern int find_T1_font(const char *); +extern setcharRetvalT set_t1_char( +#ifdef TEXXET + wide_ubyte cmd, +#endif + wide_ubyte ch); +#endif /* T1LIB */ + + +/* + this is needed by any program that wants to use spcl_scan, + since the buffer is supposed to be of that length. +*/ +#ifndef DVI_BUFFER_LEN +#define DVI_BUFFER_LEN 2048 +#endif + +extern long text_do_char(FILE *fp, struct scan_info *info, wide_ubyte ch); +extern Boolean spcl_scan(Boolean(*spcl_proc) (char *str, int str_len, void *data), void *data, Boolean return_if_found, FILE *fp); + +extern void geom_scan_part(long(*char_proc)(FILE *, struct scan_info *, wide_ubyte), + FILE *fp, struct scan_info *info, struct frame *min_frame, double current_dimconv); + +extern void geom_scan(long(*char_proc)(FILE *, struct scan_info *, wide_ubyte), + FILE *fp, struct scan_info *info, int pageno); + +extern off_t save_file_status(FILE *fp, struct drawinf *currinf_save, ubyte *maxchar_save); +extern void reinit_text_scan(void); +extern void restore_file_status(FILE *fp, struct drawinf currinf_save, ubyte maxchar_save, off_t pos_save); + +void htex_do_special(const char *str, size_t len); + +extern setcharRetvalT set_char( +#ifdef TEXXET + wide_ubyte cmd, +#endif + wide_ubyte ch); +extern setcharRetvalT load_n_set_char( +#ifdef TEXXET + wide_ubyte cmd, +#endif + wide_ubyte ch); +extern setcharRetvalT set_vf_char( +#ifdef TEXXET + wide_ubyte cmd, +#endif + wide_ubyte ch); + +#ifdef GREY +void init_plane_masks(void); +#endif + +#if COLOR +struct rgb; /* forward declaration */ + +Pixel alloc_color(const struct rgb *, Pixel); +void do_color_change(void); +#elif GREY +void init_pix(void); +#endif + +void dvi_fmt_error(const char *message, ...); + +#endif /* DVI_DRAW_H_ */ |