| 1 | |
| 2 | |
| 3 | |
| 4 | |
| 5 | |
| 6 | |
| 7 | #include <X11/Xos.h> |
| 8 | #include <X11/IntrinsicP.h> |
| 9 | #include <X11/StringDefs.h> |
| 10 | #include <stdio.h> |
| 11 | #include <stdlib.h> |
| 12 | #include <ctype.h> |
| 13 | #include "DviP.h" |
| 14 | #include "XFontName.h" |
| 15 | |
| 16 | static char * |
| 17 | savestr (const char *s) |
| 18 | { |
| 19 | char *n; |
| 20 | |
| 21 | if (!s) |
| 22 | return NULL((void*)0); |
| 23 | n = XtMalloc (strlen (s) + 1); |
| 24 | if (n) |
| 25 | strcpy (n, s)__builtin___strcpy_chk (n, s, __builtin_object_size (n, 2 > 1 ? 1 : 0)); |
| 26 | return n; |
| 27 | } |
| 28 | |
| 29 | static DviFontList * |
| 30 | LookupFontByPosition (DviWidget dw, int position) |
| 31 | { |
| 32 | DviFontList *f; |
| 33 | |
| 34 | for (f = dw->dvi.fonts; f; f=f->next) |
| 35 | if (f->dvi_number == position) |
| 36 | break; |
| 37 | return f; |
| 38 | } |
| 39 | |
| 40 | static DviFontSizeList * |
| 41 | LookupFontSizeBySize (DviWidget dw, DviFontList *f, int size) |
| 42 | { |
| 43 | DviFontSizeList *fs, *best = NULL((void*)0); |
| 44 | int bestdist; |
| 45 | char fontNameString[2048]; |
| 46 | XFontName fontName; |
| 47 | unsigned int fontNameAttributes; |
| 48 | int dist; |
| 49 | |
| 50 | if (f->scalable) |
| 51 | { |
| 52 | for (best = f->sizes; best; best = best->next) |
| 53 | if (best->size == size) |
| 54 | return best; |
| 55 | best = (DviFontSizeList *) XtMalloc (sizeof *best); |
| 56 | best->next = f->sizes; |
| 57 | best->size = size; |
| 58 | XParseFontName (f->x_name, &fontName, &fontNameAttributes); |
| 59 | fontNameAttributes &= ~(FontNamePixelSize(1<<7)|FontNameAverageWidth(1<<12)); |
| 60 | fontNameAttributes |= FontNameResolutionX(1<<9); |
| 61 | fontNameAttributes |= FontNameResolutionY(1<<10); |
| 62 | fontNameAttributes |= FontNamePointSize(1<<8); |
| 63 | fontName.ResolutionX = dw->dvi.screen_resolution; |
| 64 | fontName.ResolutionY = dw->dvi.screen_resolution; |
| 65 | fontName.PointSize = size * 10 / dw->dvi.size_scale; |
| 66 | XFormatFontName (&fontName, fontNameAttributes, fontNameString); |
| 67 | best->x_name = savestr (fontNameString); |
| 68 | #ifdef USE_XFT |
| 69 | |
| 70 | |
| 71 | |
| 72 | |
| 73 | |
| 74 | best->core = False0; |
| 75 | if (!strcmp (fontName.CharSetRegistry, "adobe") && |
| 76 | !strcmp (fontName.CharSetEncoding, "fontspecific")) |
| 77 | { |
| 78 | best->core = True1; |
| 79 | } |
| 80 | #endif |
| 81 | best->doesnt_exist = 0; |
| 82 | best->font = NULL((void*)0); |
| 83 | f->sizes = best; |
| 84 | } |
| 85 | else |
| 86 | { |
| 87 | bestdist = 65536; |
| 88 | for (fs = f->sizes; fs; fs=fs->next) { |
| 89 | dist = size - fs->size; |
| 90 | if (dist < 0) |
| 91 | dist = -dist * 16; |
| 92 | if (dist < bestdist) |
| 93 | { |
| 94 | best = fs; |
| 95 | bestdist = dist; |
| 96 | } |
| 97 | } |
| 98 | } |
| 99 | return best; |
| 100 | } |
| 101 | |
| 102 | static char * |
| 103 | SkipFontNameElement (char *n) |
| 104 | { |
| 105 | while (*n != '-') |
| 106 | if (!*++n) |
| 107 | return NULL((void*)0); |
| 108 | return n+1; |
| 109 | } |
| 110 | |
| 111 | # define SizePosition8 8 |
| 112 | # define EncodingPosition13 13 |
| 113 | |
| 114 | #ifndef USE_XFT |
| 115 | static int |
| 116 | ConvertFontNameToSize (char *n) |
| 117 | { |
| 118 | int i, size; |
| 119 | |
| 120 | for (i = 0; i < SizePosition8; i++) { |
| 121 | n = SkipFontNameElement (n); |
| 122 | if (!n) |
| 123 | return -1; |
| 124 | } |
| 125 | size = atoi (n); |
| 126 | return size/10; |
| 127 | } |
| 128 | #endif |
| 129 | |
| 130 | static char * |
| 131 | ConvertFontNameToEncoding (char *n) |
| 132 | { |
| 133 | int i; |
| 134 | for (i = 0; i < EncodingPosition13; i++) { |
| 135 | n = SkipFontNameElement (n); |
| 136 | if (!n) |
| 137 | return NULL((void*)0); |
| 138 | } |
| 139 | return n; |
| 140 | } |
| 141 | |
| 142 | static void |
| 143 | DisposeFontSizes (DviWidget dw, DviFontSizeList *fs) |
| 144 | { |
| 145 | DviFontSizeList *next; |
| 146 | |
| 147 | for (; fs; fs=next) { |
| 148 | next = fs->next; |
| 149 | if (fs->x_name) |
| 150 | XtFree (fs->x_name); |
| 151 | if (fs->font) |
| 152 | { |
| 153 | #ifdef USE_XFT |
| 154 | XftFontClose (XtDisplay (dw)(((dw)->core.screen)->display), fs->font); |
| 155 | #else |
| 156 | XUnloadFont (XtDisplay (dw)(((dw)->core.screen)->display), fs->font->fid); |
| 157 | XFree ((char *)fs->font); |
| 158 | #endif |
| 159 | } |
| 160 | XtFree ((char *) fs); |
| 161 | } |
| 162 | } |
| 163 | |
| 164 | void |
| 165 | ResetFonts (DviWidget dw) |
| 166 | { |
| 167 | DviFontList *f; |
| 168 | |
| 169 | for (f = dw->dvi.fonts; f; f = f->next) |
| 170 | { |
| 171 | if (f->initialized) |
| 172 | { |
| 173 | DisposeFontSizes (dw, f->sizes); |
| 174 | f->sizes = NULL((void*)0); |
| 175 | f->initialized = FALSE0; |
| 176 | f->scalable = FALSE0; |
| 177 | } |
| 178 | } |
| 179 | |
| 180 | |
| 181 | |
| 182 | dw->dvi.font = NULL((void*)0); |
| 183 | dw->dvi.font_number = -1; |
| 184 | dw->dvi.cache.font = NULL((void*)0); |
| 185 | dw->dvi.cache.font_number = -1; |
| 186 | } |
| 187 | |
| 188 | static DviFontSizeList * |
| 189 | InstallFontSizes (DviWidget dw, char *x_name, Boolean *scalablep) |
| 190 | { |
| 191 | #ifndef USE_XFT |
| 192 | char fontNameString[2048]; |
| 193 | char **fonts; |
| 194 | int i, count; |
| 195 | int size; |
| 196 | DviFontSizeList *new; |
| 197 | XFontName fontName; |
| 198 | unsigned int fontNameAttributes; |
| 199 | #endif |
| 200 | DviFontSizeList *sizes; |
| 201 | |
| 202 | sizes = NULL((void*)0); |
| 203 | #ifdef USE_XFT |
| 204 | *scalablep = TRUE1; |
| 205 | #else |
| 206 | *scalablep = FALSE0; |
| 207 | if (!XParseFontName (x_name, &fontName, &fontNameAttributes)) |
| 208 | return NULL((void*)0); |
| 209 | |
| 210 | fontNameAttributes &= ~(FontNamePixelSize(1<<7)|FontNamePointSize(1<<8)); |
| 211 | fontNameAttributes |= FontNameResolutionX(1<<9); |
| 212 | fontNameAttributes |= FontNameResolutionY(1<<10); |
| 213 | fontName.ResolutionX = dw->dvi.screen_resolution; |
| 214 | fontName.ResolutionY = dw->dvi.screen_resolution; |
| 215 | XFormatFontName (&fontName, fontNameAttributes, fontNameString); |
| 216 | fonts = XListFonts (XtDisplay (dw)(((dw)->core.screen)->display), fontNameString, 10000000, &count); |
| 217 | for (i = 0; i < count; i++) { |
| 218 | size = ConvertFontNameToSize (fonts[i]); |
| 219 | if (size == 0) |
| 220 | { |
| 221 | DisposeFontSizes (dw, sizes); |
| 222 | *scalablep = TRUE1; |
| 223 | sizes = NULL((void*)0); |
| 224 | break; |
| 225 | } |
| 226 | if (size != -1) { |
| 227 | new = (DviFontSizeList *) XtMalloc (sizeof *new); |
| 228 | new->next = sizes; |
| 229 | new->size = size; |
| 230 | new->x_name = savestr (fonts[i]); |
| 231 | new->doesnt_exist = 0; |
| 232 | new->font = NULL((void*)0); |
| 233 | sizes = new; |
| 234 | } |
| 235 | } |
| 236 | XFreeFontNames (fonts); |
| 237 | #endif |
| 238 | return sizes; |
| 239 | } |
| 240 | |
| 241 | static DviFontList * |
| 242 | InstallFont (DviWidget dw, int position, const char *dvi_name, const char *x_name) |
| 243 | { |
| 244 | DviFontList *f; |
| 245 | const char *encoding; |
| 246 | |
| 247 | f = LookupFontByPosition (dw, position); |
| 248 | if (f) { |
| 249 | |
| 250 | |
| 251 | |
| 252 | if (!strcmp (f->dvi_name, dvi_name) && !strcmp (f->x_name, x_name)) |
| 253 | return f; |
| 254 | |
| 255 | DisposeFontSizes (dw, f->sizes); |
| 256 | if (f->dvi_name) |
| 257 | XtFree (f->dvi_name); |
| 258 | if (f->x_name) |
| 259 | XtFree (f->x_name); |
| 260 | } else { |
| 261 | f = (DviFontList *) XtMalloc (sizeof (*f)); |
| 262 | f->next = dw->dvi.fonts; |
| 263 | dw->dvi.fonts = f; |
| 264 | } |
| 265 | f->initialized = FALSE0; |
| 266 | f->dvi_name = savestr (dvi_name); |
| 267 | f->x_name = savestr (x_name); |
| 268 | f->dvi_number = position; |
| 269 | f->sizes = NULL((void*)0); |
| 270 | f->scalable = FALSE0; |
| 271 | if (f->x_name) { |
| 272 | encoding = ConvertFontNameToEncoding (f->x_name); |
| 273 | f->char_map = DviFindMap (encoding); |
| 274 | } else |
| 275 | f->char_map = NULL((void*)0); |
| 276 | |
| 277 | |
| 278 | |
| 279 | dw->dvi.font = NULL((void*)0); |
| 280 | dw->dvi.font_number = -1; |
| 281 | dw->dvi.cache.font = NULL((void*)0); |
| 282 | dw->dvi.cache.font_number = -1; |
| 283 | return f; |
| 284 | } |
| 285 | |
| 286 | static const char * |
| 287 | MapDviNameToXName (DviWidget dw, const char *dvi_name) |
| 288 | { |
| 289 | DviFontMap *fm; |
| 290 | |
| 291 | for (fm = dw->dvi.font_map; fm; fm=fm->next) |
| 2 | | Assuming pointer value is null | |
|
| 3 | | Loop condition is false. Execution continues on line 294 | |
|
| 292 | if (!strcmp (fm->dvi_name, dvi_name)) |
| 293 | return fm->x_name; |
| 294 | ++dvi_name; |
| 295 | for (fm = dw->dvi.font_map; fm; fm=fm->next) |
| 4 | | Loop condition is false. Execution continues on line 298 | |
|
| 296 | if (!strcmp (fm->dvi_name, "R")) |
| 297 | return fm->x_name; |
| 298 | if (dw->dvi.font_map->x_name) |
| 5 | | Access to field 'x_name' results in a dereference of a null pointer (loaded from field 'font_map') |
|
| 299 | return dw->dvi.font_map->x_name; |
| 300 | return "-*-*-*-*-*-*-*-*-*-*-*-*-iso8859-1"; |
| 301 | } |
| 302 | |
| 303 | |
| 304 | void |
| 305 | ParseFontMap (DviWidget dw) |
| 306 | { |
| 307 | char dvi_name[1024]; |
| 308 | char x_name[2048]; |
| 309 | char *m, *s; |
| 310 | DviFontMap *fm, *new; |
| 311 | |
| 312 | if (dw->dvi.font_map) |
| 313 | DestroyFontMap (dw->dvi.font_map); |
| 314 | fm = NULL((void*)0); |
| 315 | m = dw->dvi.font_map_string; |
| 316 | while (*m) { |
| 317 | s = m; |
| 318 | while (*m && !isspace (*m)) |
| 319 | ++m; |
| 320 | strncpy (dvi_name, s, m-s)__builtin___strncpy_chk (dvi_name, s, m-s, __builtin_object_size (dvi_name, 2 > 1 ? 1 : 0)); |
| 321 | dvi_name[m-s] = '\0'; |
| 322 | while (isspace (*m)) |
| 323 | ++m; |
| 324 | s = m; |
| 325 | while (*m && *m != '\n') |
| 326 | ++m; |
| 327 | strncpy (x_name, s, m-s)__builtin___strncpy_chk (x_name, s, m-s, __builtin_object_size (x_name, 2 > 1 ? 1 : 0)); |
| 328 | x_name[m-s] = '\0'; |
| 329 | new = (DviFontMap *) XtMalloc (sizeof *new); |
| 330 | new->x_name = savestr (x_name); |
| 331 | new->dvi_name = savestr (dvi_name); |
| 332 | new->next = fm; |
| 333 | fm = new; |
| 334 | ++m; |
| 335 | } |
| 336 | dw->dvi.font_map = fm; |
| 337 | } |
| 338 | |
| 339 | void |
| 340 | DestroyFontMap (DviFontMap *font_map) |
| 341 | { |
| 342 | DviFontMap *next; |
| 343 | |
| 344 | for (; font_map; font_map = next) { |
| 345 | next = font_map->next; |
| 346 | if (font_map->x_name) |
| 347 | XtFree (font_map->x_name); |
| 348 | if (font_map->dvi_name) |
| 349 | XtFree (font_map->dvi_name); |
| 350 | XtFree ((char *) font_map); |
| 351 | } |
| 352 | } |
| 353 | |
| 354 | |
| 355 | void |
| 356 | SetFontPosition (DviWidget dw, int position, const char *dvi_name, const char *extra) |
| 357 | { |
| 358 | const char *x_name; |
| 359 | |
| 360 | x_name = MapDviNameToXName (dw, dvi_name); |
| 1 | Calling 'MapDviNameToXName' | |
|
| 361 | (void) InstallFont (dw, position, dvi_name, x_name); |
| 362 | } |
| 363 | |
| 364 | #ifdef USE_XFT |
| 365 | XftFont * |
| 366 | #else |
| 367 | XFontStruct * |
| 368 | #endif |
| 369 | QueryFont (DviWidget dw, int position, int size) |
| 370 | { |
| 371 | DviFontList *f; |
| 372 | DviFontSizeList *fs; |
| 373 | |
| 374 | f = LookupFontByPosition (dw, position); |
| 375 | if (!f) |
| 376 | return dw->dvi.default_font; |
| 377 | if (!f->initialized) { |
| 378 | f->sizes = InstallFontSizes (dw, f->x_name, &f->scalable); |
| 379 | f->initialized = TRUE1; |
| 380 | } |
| 381 | fs = LookupFontSizeBySize (dw, f, size); |
| 382 | if (!fs) |
| 383 | return dw->dvi.default_font; |
| 384 | if (!fs->font) { |
| 385 | if (fs->x_name) |
| 386 | { |
| 387 | #ifdef USE_XFT |
| 388 | XftPattern *pat; |
| 389 | XftPattern *match; |
| 390 | XftResult result; |
| 391 | |
| 392 | pat = XftXlfdParse (fs->x_name, False0, False0); |
| 393 | XftPatternAddBool (pat, XFT_CORE, fs->core); |
| 394 | match = XftFontMatch (XtDisplay (dw)(((dw)->core.screen)->display), |
| 395 | XScreenNumberOfScreen(dw->core.screen), |
| 396 | pat, &result); |
| 397 | XftPatternDestroy (pat); |
| 398 | if (match) |
| 399 | { |
| 400 | fs->font = XftFontOpenPattern (XtDisplay (dw)(((dw)->core.screen)->display), |
| 401 | match); |
| 402 | if (!fs->font) |
| 403 | XftPatternDestroy (match); |
| 404 | } |
| 405 | else |
| 406 | fs->font = 0; |
| 407 | #else |
| 408 | fs->font = XLoadQueryFont (XtDisplay (dw)(((dw)->core.screen)->display), fs->x_name); |
| 409 | #endif |
| 410 | } |
| 411 | if (!fs->font) |
| 412 | fs->font = dw->dvi.default_font; |
| 413 | } |
| 414 | return fs->font; |
| 415 | } |
| 416 | |
| 417 | DviCharNameMap * |
| 418 | QueryFontMap (DviWidget dw, int position) |
| 419 | { |
| 420 | DviFontList *f; |
| 421 | |
| 422 | f = LookupFontByPosition (dw, position); |
| 423 | if (f) |
| 424 | return f->char_map; |
| 425 | else |
| 426 | return NULL((void*)0); |
| 427 | } |
| 428 | |
| 429 | unsigned char * |
| 430 | DviCharIsLigature (DviCharNameMap *map, const char *name) |
| 431 | { |
| 432 | int i; |
| 433 | |
| 434 | for (i = 0; i < DVI_MAX_LIGATURES16; i++) { |
| 435 | if (!map->ligatures[i][0]) |
| 436 | break; |
| 437 | if (!strcmp (name, map->ligatures[i][0])) |
| 438 | return (unsigned char *) map->ligatures[i][1]; |
| 439 | } |
| 440 | return NULL((void*)0); |
| 441 | } |