1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
|
/*
* $XConsortium: DviP.h,v 1.10 92/02/11 01:27:15 keith Exp $
*/
/* $XFree86: xc/programs/xditview/DviP.h,v 1.4 2001/08/01 00:45:03 tsi Exp $ */
/*
* 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, 2),\
(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;
/* draw.c */
extern void HorizontalMove(DviWidget, int);
extern void HorizontalGoto(DviWidget, int);
extern void VerticalMove(DviWidget, int);
extern void VerticalGoto(DviWidget, int);
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, char *, int);
/* font.c */
extern void ParseFontMap(DviWidget);
extern void DestroyFontMap(DviFontMap *);
extern void SetFontPosition(DviWidget, int, char *, 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 */
|
