294 lines
6.1 KiB
C
294 lines
6.1 KiB
C
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/*
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* $XConsortium: DviP.h,v 1.10 92/02/11 01:27:15 keith Exp $
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*/
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/* $XFree86: xc/programs/xditview/DviP.h,v 1.4 2001/08/01 00:45:03 tsi Exp $ */
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/*
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* DviP.h - Private definitions for Dvi widget
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*/
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#ifndef _XtDviP_h
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#define _XtDviP_h
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#ifdef USE_XFT
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#include <X11/Xft/Xft.h>
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#endif
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#include "Dvi.h"
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#include <X11/Xaw/SimpleP.h>
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#include "DviChar.h"
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/***********************************************************************
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*
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* Dvi Widget Private Data
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*
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***********************************************************************/
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/************************************
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*
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* Class structure
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*
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***********************************/
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/*
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* New fields for the Dvi widget class record
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*/
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typedef struct _DviClass {
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int makes_compiler_happy; /* not used */
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} DviClassPart;
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/*
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* Full class record declaration
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*/
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typedef struct _DviClassRec {
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CoreClassPart core_class;
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SimpleClassPart simple_class;
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DviClassPart command_class;
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} DviClassRec;
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extern DviClassRec dviClassRec;
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/***************************************
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*
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* Instance (widget) structure
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*
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**************************************/
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/*
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* a list of fonts we've used for this widget
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*/
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typedef struct _dviFontSizeList {
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struct _dviFontSizeList *next;
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int size;
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char *x_name;
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#ifdef USE_XFT
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XftFont *font;
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Bool core;
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#else
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XFontStruct *font;
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#endif
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int doesnt_exist;
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} DviFontSizeList;
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typedef struct _dviFontList {
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struct _dviFontList *next;
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char *dvi_name;
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char *x_name;
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int dvi_number;
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Boolean initialized;
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Boolean scalable;
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DviFontSizeList *sizes;
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DviCharNameMap *char_map;
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} DviFontList;
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typedef struct _dviFontMap {
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struct _dviFontMap *next;
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char *dvi_name;
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char *x_name;
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} DviFontMap;
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#define DVI_TEXT_CACHE_SIZE 256
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#define DVI_CHAR_CACHE_SIZE 1024
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#ifdef USE_XFT
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typedef struct _dviTextItem {
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char *chars;
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int nchars;
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int x;
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XftFont *font;
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} DviTextItem;
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#endif
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typedef struct _dviCharCache {
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#ifdef USE_XFT
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DviTextItem cache[DVI_TEXT_CACHE_SIZE];
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#else
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XTextItem cache[DVI_TEXT_CACHE_SIZE];
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#endif
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char char_cache[DVI_CHAR_CACHE_SIZE];
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int index;
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int max;
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int char_index;
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int font_size;
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int font_number;
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#ifdef USE_XFT
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XftFont *font;
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#else
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XFontStruct *font;
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#endif
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int start_x, start_y;
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int x, y;
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} DviCharCache;
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typedef struct _dviState {
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struct _dviState *next;
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int font_size;
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int font_bound;
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int font_number;
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int line_style;
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int line_width;
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int x;
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int y;
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} DviState;
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typedef struct _dviFileMap {
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struct _dviFileMap *next;
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long position;
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int page_number;
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} DviFileMap;
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/*
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* New fields for the Dvi widget record
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*/
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typedef struct {
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/*
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* resource specifiable items
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*/
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char *font_map_string;
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unsigned long foreground;
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int requested_page;
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int last_page;
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FILE *file;
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Boolean seek; /* file is "seekable" */
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#ifdef USE_XFT
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XftFont *default_font;
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#else
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XFontStruct *default_font;
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#endif
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int backing_store;
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Boolean noPolyText;
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int screen_resolution;
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float page_width;
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float page_height;
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int size_scale_set;
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/*
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* private state
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*/
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FILE *tmpFile; /* used when reading stdin */
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char readingTmp; /* reading now from tmp */
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char ungot; /* have ungetc'd a char */
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GC normal_GC;
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#ifdef USE_XFT
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XftDraw *draw;
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XftColor black;
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#endif
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DviFileMap *file_map;
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DviFontList *fonts;
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DviFontMap *font_map;
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int current_page;
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int font_size;
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int font_number;
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int device_resolution;
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int line_width;
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int line_style;
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int desired_width;
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int desired_height;
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int size_scale; /* font size scale */
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#ifdef USE_XFT
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XftFont *font;
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#else
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XFontStruct *font;
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#endif
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int display_enable;
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double scale; /* device coordinates to pixels */
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struct ExposedExtents {
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int x1, y1, x2, y2;
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} extents;
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DviState *state;
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DviCharCache cache;
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} DviPart;
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extern int DviGetAndPut(DviWidget, int *);
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#define DviGetIn(dw,cp)\
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(dw->dvi.tmpFile ? (\
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DviGetAndPut (dw, cp) \
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) :\
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(*cp = getc (dw->dvi.file))\
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)
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#define DviGetC(dw, cp)\
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(dw->dvi.readingTmp ? (\
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((*cp = getc (dw->dvi.tmpFile)) == EOF) ? (\
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fseek (dw->dvi.tmpFile, 0l, 2),\
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(dw->dvi.readingTmp = 0),\
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DviGetIn (dw,cp)\
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) : (\
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*cp\
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)\
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) : (\
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DviGetIn(dw,cp)\
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)\
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)
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#define DviUngetC(dw, c)\
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(dw->dvi.readingTmp ? (\
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ungetc (c, dw->dvi.tmpFile)\
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) : ( \
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(dw->dvi.ungot = 1),\
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ungetc (c, dw->dvi.file)))
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#define ToX(dw,device) ((int) ((device) * (dw)->dvi.scale + 0.5))
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#define ToDevice(dw,x) ((int) ((x) / (dw)->dvi.scale + 0.5))
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#define SizeScale(dw) ((dw)->dvi.size_scale ? (dw)->dvi.size_scale : 4)
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#define FontSizeInPixels(dw,size) ((int) ((size) * (dw)->dvi.screen_resolution / (SizeScale(dw) * 72)))
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#define FontSizeInDevice(dw,size) ((int) ((size) * (dw)->dvi.device_resolution / (SizeScale(dw) * 72)))
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/*
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* Full widget declaration
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*/
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typedef struct _DviRec {
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CorePart core;
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SimplePart simple;
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DviPart dvi;
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} DviRec;
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/* draw.c */
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extern void HorizontalMove(DviWidget, int);
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extern void HorizontalGoto(DviWidget, int);
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extern void VerticalMove(DviWidget, int);
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extern void VerticalGoto(DviWidget, int);
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extern void FlushCharCache(DviWidget);
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extern void SetGCForDraw(DviWidget);
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extern void DrawLine(DviWidget, int, int);
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extern void DrawCircle(DviWidget, int);
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extern void DrawEllipse(DviWidget, int, int);
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extern void DrawArc(DviWidget, int, int, int, int);
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extern void DrawSpline(DviWidget, char *, int);
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/* font.c */
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extern void ParseFontMap(DviWidget);
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extern void DestroyFontMap(DviFontMap *);
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extern void SetFontPosition(DviWidget, int, char *, char *);
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#ifdef USE_XFT
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extern XftFont * QueryFont(DviWidget, int, int);
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#else
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extern XFontStruct * QueryFont(DviWidget, int, int);
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#endif
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extern DviCharNameMap * QueryFontMap(DviWidget, int);
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/* lex.c */
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extern char * GetLine(DviWidget, char *, int);
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extern char * GetWord(DviWidget, char *, int);
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extern int GetNumber(DviWidget);
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/* page.c */
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extern void DestroyFileMap(DviFileMap *);
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extern void ForgetPagePositions(DviWidget);
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extern void RememberPagePosition(DviWidget, int);
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extern long SearchPagePosition(DviWidget, int);
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extern void FileSeek(DviWidget, long);
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/* parse.c */
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extern int ParseInput(DviWidget);
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/* Dvi.c */
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extern void SetDeviceResolution(DviWidget, int);
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#endif /* _XtDviP_h */
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