src/xditview/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 #include "device.h"
  15
  16 /***********************************************************************
  17  *
  18  * Dvi Widget Private Data
  19  *
  20  ***********************************************************************/
  21
  22 /************************************
  23  *
  24  *  Class structure
  25  *
  26  ***********************************/
  27
  28 /* Type for save method. */
  29
  30 typedef void (*DviSaveProc)();
  31
  32 /*
  33  * New fields for the Dvi widget class record
  34  */
  35
  36
  37 typedef struct _DviClass {
  38       DviSaveProc       save;
  39 } DviClassPart;
  40
  41 /*
  42  * Full class record declaration
  43  */
  44
  45 typedef struct _DviClassRec {
  46         CoreClassPart   core_class;
  47         DviClassPart    command_class;
  48 } DviClassRec;
  49
  50 extern DviClassRec dviClassRec;
  51
  52 /***************************************
  53  *
  54  *  Instance (widget) structure
  55  *
  56  **************************************/
  57
  58 /*
  59  * a list of fonts we've used for this widget
  60  */
  61
  62 typedef struct _dviFontSizeList {
  63         struct _dviFontSizeList *next;
  64         int                     size;
  65         char                    *x_name;
  66         XFontStruct             *font;
  67         int                     doesnt_exist;
  68 } DviFontSizeList;
  69
  70 typedef struct _dviFontList {
  71         struct _dviFontList     *next;
  72         char                    *dvi_name;
  73         char                    *x_name;
  74         int                     dvi_number;
  75         Boolean                 initialized;
  76         Boolean                 scalable;
  77         DviFontSizeList         *sizes;
  78         DviCharNameMap          *char_map;
  79         DeviceFont              *device_font;
  80 } DviFontList;
  81
  82 typedef struct _dviFontMap {
  83         struct _dviFontMap      *next;
  84         char                    *dvi_name;
  85         char                    *x_name;
  86 } DviFontMap;
  87
  88 #define DVI_TEXT_CACHE_SIZE     256
  89 #define DVI_CHAR_CACHE_SIZE     1024
  90
  91 typedef struct _dviCharCache {
  92         XTextItem       cache[DVI_TEXT_CACHE_SIZE];
  93         char            adjustable[DVI_TEXT_CACHE_SIZE];
  94         char            char_cache[DVI_CHAR_CACHE_SIZE];
  95         int             index;
  96         int             max;
  97         int             char_index;
  98         int             font_size;
  99         int             font_number;
 100         XFontStruct     *font;
 101         int             start_x, start_y;
 102         int             x, y;
 103 } DviCharCache;
 104
 105 typedef struct _dviState {
 106         struct _dviState        *next;
 107         int                     font_size;
 108         int                     font_number;
 109         int                     x;
 110         int                     y;
 111 } DviState;
 112
 113 typedef struct _dviFileMap {
 114         struct _dviFileMap      *next;
 115         long                    position;
 116         int                     page_number;
 117 } DviFileMap;
 118
 119 /*
 120  * New fields for the Dvi widget record
 121  */
 122
 123 typedef struct {
 124         /*
 125          * resource specifiable items
 126          */
 127         char            *font_map_string;
 128         unsigned long   foreground;
 129         unsigned long   background;
 130         int             requested_page;
 131         int             last_page;
 132         XFontStruct     *default_font;
 133         FILE            *file;
 134         Boolean         noPolyText;
 135         Boolean         seek;           /* file is "seekable" */
 136         int             default_resolution;
 137         /*
 138          * private state
 139          */
 140         FILE            *tmpFile;       /* used when reading stdin */
 141         char            readingTmp;     /* reading now from tmp */
 142         char            ungot;          /* have ungetc'd a char */
 143         GC              normal_GC;
 144         GC              fill_GC;
 145         DviFileMap      *file_map;
 146         DviFontList     *fonts;
 147         DviFontMap      *font_map;
 148         int             current_page;
 149         int             font_size;
 150         int             font_number;
 151         DeviceFont      *device_font;
 152         int             device_font_number;
 153         Device          *device;
 154         int             native;
 155         int             device_resolution;
 156         int             display_resolution;
 157         int             paperlength;
 158         int             paperwidth;
 159         double          scale_factor;   /* display res / device res */
 160         int             sizescale;
 161         int             line_thickness;
 162         int             line_width;
 163
 164 #define DVI_FILL_MAX 1000
 165
 166         int             fill;
 167 #define DVI_FILL_WHITE 0
 168 #define DVI_FILL_GRAY 1
 169 #define DVI_FILL_BLACK 2
 170         int             fill_type;
 171         Pixmap          gray[8];
 172         int             backing_store;
 173         XFontStruct     *font;
 174         int             display_enable;
 175         struct ExposedExtents {
 176             int x1, y1, x2, y2;
 177         }               extents;
 178         DviState        *state;
 179         DviCharCache    cache;
 180         int             text_x_width;
 181         int             text_device_width;
 182         int             word_flag;
 183 } DviPart;
 184
 185 extern int DviGetAndPut();
 186 #define DviGetIn(dw,cp)\
 187     (dw->dvi.tmpFile ? (\
 188         DviGetAndPut (dw, cp) \
 189     ) :\
 190         (*cp = getc (dw->dvi.file))\
 191 )
 192
 193 #define DviGetC(dw, cp)\
 194     (dw->dvi.readingTmp ? (\
 195         ((*cp = getc (dw->dvi.tmpFile)) == EOF) ? (\
 196             fseek (dw->dvi.tmpFile, 0l, 2),\
 197             (dw->dvi.readingTmp = 0),\
 198             DviGetIn (dw,cp)\
 199         ) : (\
 200             *cp\
 201         )\
 202     ) : (\
 203         DviGetIn(dw,cp)\
 204     )\
 205 )
 206
 207 #define DviUngetC(dw, c)\
 208     (dw->dvi.readingTmp ? (\
 209         ungetc (c, dw->dvi.tmpFile)\
 210     ) : ( \
 211         (dw->dvi.ungot = 1),\
 212         ungetc (c, dw->dvi.file)))
 213
 214 /*
 215  * Full widget declaration
 216  */
 217
 218 typedef struct _DviRec {
 219         CorePart        core;
 220         DviPart         dvi;
 221 } DviRec;
 222
 223 #define InheritSaveToFile ((DviSaveProc)_XtInherit)
 224
 225 extern XFontStruct      *QueryFont ();
 226
 227 extern DviCharNameMap   *QueryFontMap ();
 228
 229 extern DeviceFont       *QueryDeviceFont ();
 230
 231 extern char *GetWord(), *GetLine();
 232 #endif /* _XtDviP_h */
 233
 234