gnu/usr.bin/groff/libXdvi/DviP.h

   1 /*
   2  * $XConsortium: DviP.h,v 1.5 89/07/22 19:44:08 keith Exp $
   3  */
   4
   5 /*
   6  * DviP.h - Private definitions for Dvi widget
   7  */
   8
   9 #ifndef _XtDviP_h
  10 #define _XtDviP_h
  11
  12 #include "Dvi.h"
  13 #include "DviChar.h"
  14
  15 /***********************************************************************
  16  *
  17  * Dvi Widget Private Data
  18  *
  19  ***********************************************************************/
  20
  21 /************************************
  22  *
  23  *  Class structure
  24  *
  25  ***********************************/
  26
  27 /*
  28  * New fields for the Dvi widget class record
  29  */
  30
  31 typedef struct _DviClass {
  32         int             makes_compiler_happy;  /* not used */
  33 } DviClassPart;
  34
  35 /*
  36  * Full class record declaration
  37  */
  38
  39 typedef struct _DviClassRec {
  40         CoreClassPart   core_class;
  41         DviClassPart    command_class;
  42 } DviClassRec;
  43
  44 extern DviClassRec dviClassRec;
  45
  46 /***************************************
  47  *
  48  *  Instance (widget) structure
  49  *
  50  **************************************/
  51
  52 /*
  53  * a list of fonts we've used for this widget
  54  */
  55
  56 typedef struct _dviFontSizeList {
  57         struct _dviFontSizeList *next;
  58         int                     size;
  59         char                    *x_name;
  60         XFontStruct             *font;
  61         int                     doesnt_exist;
  62 } DviFontSizeList;
  63
  64 typedef struct _dviFontList {
  65         struct _dviFontList     *next;
  66         char                    *dvi_name;
  67         char                    *x_name;
  68         int                     dvi_number;
  69         DviFontSizeList         *sizes;
  70         DviCharNameMap          *char_map;
  71 } DviFontList;
  72
  73 typedef struct _dviFontMap {
  74         struct _dviFontMap      *next;
  75         char                    *dvi_name;
  76         char                    *x_name;
  77 } DviFontMap;
  78
  79 #define DVI_TEXT_CACHE_SIZE     256
  80 #define DVI_CHAR_CACHE_SIZE     1024
  81
  82 typedef struct _dviCharCache {
  83         XTextItem       cache[DVI_TEXT_CACHE_SIZE];
  84         char            char_cache[DVI_CHAR_CACHE_SIZE];
  85         int             index;
  86         int             max;
  87         int             char_index;
  88         int             font_size;
  89         int             font_number;
  90         XFontStruct     *font;
  91         int             start_x, start_y;
  92         int             x, y;
  93 } DviCharCache;
  94
  95 typedef struct _dviState {
  96         struct _dviState        *next;
  97         int                     font_size;
  98         int                     font_number;
  99         int                     x;
 100         int                     y;
 101 } DviState;
 102
 103 typedef struct _dviFileMap {
 104         struct _dviFileMap      *next;
 105         long                    position;
 106         int                     page_number;
 107 } DviFileMap;
 108
 109 /*
 110  * New fields for the Dvi widget record
 111  */
 112
 113 typedef struct {
 114         /*
 115          * resource specifiable items
 116          */
 117         char            *font_map_string;
 118         unsigned long   foreground;
 119         unsigned long   background;
 120         int             requested_page;
 121         int             last_page;
 122         XFontStruct     *default_font;
 123         FILE            *file;
 124         Boolean         noPolyText;
 125         Boolean         seek;           /* file is "seekable" */
 126         /*
 127          * private state
 128          */
 129         FILE            *tmpFile;       /* used when reading stdin */
 130         char            readingTmp;     /* reading now from tmp */
 131         char            ungot;          /* have ungetc'd a char */
 132         GC              normal_GC;
 133         GC              fill_GC;
 134         DviFileMap      *file_map;
 135         DviFontList     *fonts;
 136         DviFontMap      *font_map;
 137         int             current_page;
 138         int             font_size;
 139         int             font_number;
 140         int             device_resolution;
 141         int             line_thickness;
 142         int             line_width;
 143
 144 #define DVI_FILL_MAX 1000
 145
 146         int             fill;
 147 #define DVI_FILL_WHITE 0
 148 #define DVI_FILL_GRAY 1
 149 #define DVI_FILL_BLACK 2
 150         int             fill_type;
 151         Pixmap          gray;
 152         int             backing_store;
 153         XFontStruct     *font;
 154         int             display_enable;
 155         struct ExposedExtents {
 156             int x1, y1, x2, y2;
 157         }               extents;
 158         DviState        *state;
 159         DviCharCache    cache;
 160 } DviPart;
 161
 162 #define DviGetIn(dw,cp)\
 163     (dw->dvi.tmpFile ? (\
 164         DviGetAndPut (dw, cp) \
 165     ) :\
 166         (*cp = getc (dw->dvi.file))\
 167 )
 168
 169 #define DviGetC(dw, cp)\
 170     (dw->dvi.readingTmp ? (\
 171         ((*cp = getc (dw->dvi.tmpFile)) == EOF) ? (\
 172             fseek (dw->dvi.tmpFile, 0l, 2),\
 173             (dw->dvi.readingTmp = 0),\
 174             DviGetIn (dw,cp)\
 175         ) : (\
 176             *cp\
 177         )\
 178     ) : (\
 179         DviGetIn(dw,cp)\
 180     )\
 181 )
 182
 183 #define DviUngetC(dw, c)\
 184     (dw->dvi.readingTmp ? (\
 185         ungetc (c, dw->dvi.tmpFile)\
 186     ) : ( \
 187         (dw->dvi.ungot = 1),\
 188         ungetc (c, dw->dvi.file)))
 189
 190 /*
 191  * Full widget declaration
 192  */
 193
 194 typedef struct _DviRec {
 195         CorePart        core;
 196         DviPart         dvi;
 197 } DviRec;
 198
 199 extern XFontStruct      *QueryFont ();
 200
 201 extern DviCharNameMap   *QueryFontMap ();
 202 #endif /* _XtDviP_h */
 203
 204