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/*
* DviP.h - Private definitions for Dvi widget
*/
#ifndef _XtDviP_h
#define _XtDviP_h
#ifdef USE_XFT
#include <X11/Xft/Xft.h>
#endif
#include "Dvi.h"
#include <X11/Xaw/SimpleP.h>
#include "DviChar.h"
/***********************************************************************
*
* Dvi Widget Private Data
*
***********************************************************************/
/************************************
*
* Class structure
*
***********************************/
/*
* New fields for the Dvi widget class record
*/
typedef struct _DviClass {
int makes_compiler_happy; /* not used */
} DviClassPart;
/*
* Full class record declaration
*/
typedef struct _DviClassRec {
CoreClassPart core_class;
SimpleClassPart simple_class;
DviClassPart command_class;
} DviClassRec;
extern DviClassRec dviClassRec;
/***************************************
*
* Instance (widget) structure
*
**************************************/
/*
* a list of fonts we've used for this widget
*/
typedef struct _dviFontSizeList {
struct _dviFontSizeList *next;
int size;
char *x_name;
#ifdef USE_XFT
XftFont *font;
Bool core;
#else
XFontStruct *font;
#endif
int doesnt_exist;
} DviFontSizeList;
typedef struct _dviFontList {
struct _dviFontList *next;
char *dvi_name;
char *x_name;
int dvi_number;
Boolean initialized;
Boolean scalable;
DviFontSizeList *sizes;
DviCharNameMap *char_map;
} DviFontList;
typedef struct _dviFontMap {
struct _dviFontMap *next;
char *dvi_name;
char *x_name;
} DviFontMap;
#define DVI_TEXT_CACHE_SIZE 256
#define DVI_CHAR_CACHE_SIZE 1024
#ifdef USE_XFT
typedef struct _dviTextItem {
char *chars;
int nchars;
int x;
XftFont *font;
} DviTextItem;
#endif
typedef struct _dviCharCache {
#ifdef USE_XFT
DviTextItem cache[DVI_TEXT_CACHE_SIZE];
#else
XTextItem cache[DVI_TEXT_CACHE_SIZE];
#endif
char char_cache[DVI_CHAR_CACHE_SIZE];
int index;
int max;
int char_index;
int font_size;
int font_number;
#ifdef USE_XFT
XftFont *font;
#else
XFontStruct *font;
#endif
int start_x, start_y;
int x, y;
} DviCharCache;
typedef struct _dviState {
struct _dviState *next;
int font_size;
int font_bound;
int font_number;
int line_style;
int line_width;
int x;
int y;
} DviState;
typedef struct _dviFileMap {
struct _dviFileMap *next;
long position;
int page_number;
} DviFileMap;
/*
* New fields for the Dvi widget record
*/
typedef struct {
/*
* resource specifiable items
*/
char *font_map_string;
unsigned long foreground;
int requested_page;
int last_page;
FILE *file;
Boolean seek; /* file is "seekable" */
#ifdef USE_XFT
XftFont *default_font;
#else
XFontStruct *default_font;
#endif
int backing_store;
Boolean noPolyText;
int screen_resolution;
float page_width;
float page_height;
int size_scale_set;
/*
* private state
*/
FILE *tmpFile; /* used when reading stdin */
char readingTmp; /* reading now from tmp */
char ungot; /* have ungetc'd a char */
GC normal_GC;
#ifdef USE_XFT
XftDraw *draw;
XftColor black;
#endif
DviFileMap *file_map;
DviFontList *fonts;
DviFontMap *font_map;
int current_page;
int font_size;
int font_number;
int device_resolution;
int line_width;
int line_style;
int desired_width;
int desired_height;
int size_scale; /* font size scale */
#ifdef USE_XFT
XftFont *font;
#else
XFontStruct *font;
#endif
int display_enable;
double scale; /* device coordinates to pixels */
struct ExposedExtents {
int x1, y1, x2, y2;
} extents;
DviState *state;
DviCharCache cache;
} DviPart;
extern int DviGetAndPut(DviWidget, int *);
#define DviGetIn(dw,cp)\
(dw->dvi.tmpFile ? (\
DviGetAndPut (dw, cp) \
) :\
(*cp = getc (dw->dvi.file))\
)
#define DviGetC(dw, cp)\
(dw->dvi.readingTmp ? (\
((*cp = getc (dw->dvi.tmpFile)) == EOF) ? (\
fseek (dw->dvi.tmpFile, 0l, SEEK_END),\
(dw->dvi.readingTmp = 0),\
DviGetIn (dw,cp)\
) : (\
*cp\
)\
) : (\
DviGetIn(dw,cp)\
)\
)
#define DviUngetC(dw, c)\
(dw->dvi.readingTmp ? (\
ungetc (c, dw->dvi.tmpFile)\
) : ( \
(dw->dvi.ungot = 1),\
ungetc (c, dw->dvi.file)))
#define ToX(dw,device) ((int) ((device) * (dw)->dvi.scale + 0.5))
#define ToDevice(dw,x) ((int) ((x) / (dw)->dvi.scale + 0.5))
#define SizeScale(dw) ((dw)->dvi.size_scale ? (dw)->dvi.size_scale : 4)
#define FontSizeInPixels(dw,size) ((int) ((size) * (dw)->dvi.screen_resolution / (SizeScale(dw) * 72)))
#define FontSizeInDevice(dw,size) ((int) ((size) * (dw)->dvi.device_resolution / (SizeScale(dw) * 72)))
/*
* Full widget declaration
*/
typedef struct _DviRec {
CorePart core;
SimplePart simple;
DviPart dvi;
} DviRec;
/* previously in draw.c */
static inline void
HorizontalMove(DviWidget dw, int delta)
{
dw->dvi.state->x += delta;
}
static inline void
HorizontalGoto(DviWidget dw, int NewPosition)
{
dw->dvi.state->x = NewPosition;
}
static inline void
VerticalMove(DviWidget dw, int delta)
{
dw->dvi.state->y += delta;
}
static inline void
VerticalGoto(DviWidget dw, int NewPosition)
{
dw->dvi.state->y = NewPosition;
}
/* draw.c */
extern void FlushCharCache(DviWidget);
extern void SetGCForDraw(DviWidget);
extern void DrawLine(DviWidget, int, int);
extern void DrawCircle(DviWidget, int);
extern void DrawEllipse(DviWidget, int, int);
extern void DrawArc(DviWidget, int, int, int, int);
extern void DrawSpline(DviWidget, const char *, int);
/* font.c */
extern void ParseFontMap(DviWidget);
extern void DestroyFontMap(DviFontMap *);
extern void SetFontPosition(DviWidget, int, const char *, const char *);
#ifdef USE_XFT
extern XftFont *QueryFont(DviWidget, int, int);
#else
extern XFontStruct *QueryFont(DviWidget, int, int);
#endif
extern DviCharNameMap *QueryFontMap(DviWidget, int);
/* lex.c */
extern char *GetLine(DviWidget, char *, int);
extern char *GetWord(DviWidget, char *, int);
extern int GetNumber(DviWidget);
/* page.c */
extern void DestroyFileMap(DviFileMap *);
extern void ForgetPagePositions(DviWidget);
extern void RememberPagePosition(DviWidget, int);
extern long SearchPagePosition(DviWidget, int);
extern void FileSeek(DviWidget, long);
/* parse.c */
extern int ParseInput(DviWidget);
/* Dvi.c */
extern void SetDeviceResolution(DviWidget, int);
#endif /* _XtDviP_h */
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