drw.c (20644B)
1 /* See LICENSE file for copyright and license details. */ 2 #include <stdio.h> 3 #include <stdlib.h> 4 #include <string.h> 5 #include <X11/Xlib.h> 6 #include <X11/Xft/Xft.h> 7 8 #include "patches.h" 9 #include "drw.h" 10 #include "util.h" 11 12 #if BIDI_PATCH 13 #include <fribidi.h> 14 15 static char fribidi_text[BUFSIZ] = ""; 16 17 static void 18 apply_fribidi(const char *str) 19 { 20 FriBidiStrIndex len = strlen(str); 21 FriBidiChar logical[BUFSIZ]; 22 FriBidiChar visual[BUFSIZ]; 23 FriBidiParType base = FRIBIDI_PAR_ON; 24 FriBidiCharSet charset; 25 26 fribidi_text[0] = 0; 27 if (len > 0) { 28 charset = fribidi_parse_charset("UTF-8"); 29 len = fribidi_charset_to_unicode(charset, str, len, logical); 30 fribidi_log2vis(logical, len, &base, visual, NULL, NULL, NULL); 31 len = fribidi_unicode_to_charset(charset, visual, len, fribidi_text); 32 } 33 } 34 #endif 35 36 #if !BAR_PANGO_PATCH 37 #define UTF_INVALID 0xFFFD 38 #endif // BAR_PANGO_PATCH 39 40 #if BAR_POWERLINE_TAGS_PATCH || BAR_POWERLINE_STATUS_PATCH 41 Clr transcheme[3]; 42 #endif // BAR_POWERLINE_TAGS_PATCH | BAR_POWERLINE_STATUS_PATCH 43 44 #if !BAR_PANGO_PATCH 45 static int 46 utf8decode(const char *s_in, long *u, int *err) 47 { 48 static const unsigned char lens[] = { 49 /* 0XXXX */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 50 /* 10XXX */ 0, 0, 0, 0, 0, 0, 0, 0, /* invalid */ 51 /* 110XX */ 2, 2, 2, 2, 52 /* 1110X */ 3, 3, 53 /* 11110 */ 4, 54 /* 11111 */ 0, /* invalid */ 55 }; 56 static const unsigned char leading_mask[] = { 0x7F, 0x1F, 0x0F, 0x07 }; 57 static const unsigned int overlong[] = { 0x0, 0x80, 0x0800, 0x10000 }; 58 59 const unsigned char *s = (const unsigned char *)s_in; 60 int len = lens[*s >> 3]; 61 *u = UTF_INVALID; 62 *err = 1; 63 if (len == 0) 64 return 1; 65 66 long cp = s[0] & leading_mask[len - 1]; 67 for (int i = 1; i < len; ++i) { 68 if (s[i] == '\0' || (s[i] & 0xC0) != 0x80) 69 return i; 70 cp = (cp << 6) | (s[i] & 0x3F); 71 } 72 /* out of range, surrogate, overlong encoding */ 73 if (cp > 0x10FFFF || (cp >> 11) == 0x1B || cp < overlong[len - 1]) 74 return len; 75 76 *err = 0; 77 *u = cp; 78 return len; 79 } 80 #endif // BAR_PANGO_PATCH 81 82 Drw * 83 #if BAR_ALPHA_PATCH 84 drw_create(Display *dpy, int screen, Window root, unsigned int w, unsigned int h, Visual *visual, unsigned int depth, Colormap cmap) 85 #else 86 drw_create(Display *dpy, int screen, Window root, unsigned int w, unsigned int h) 87 #endif // BAR_ALPHA_PATCH 88 { 89 Drw *drw = ecalloc(1, sizeof(Drw)); 90 91 drw->dpy = dpy; 92 drw->screen = screen; 93 drw->root = root; 94 drw->w = w; 95 drw->h = h; 96 97 #if BAR_ALPHA_PATCH 98 drw->visual = visual; 99 drw->depth = depth; 100 drw->cmap = cmap; 101 drw->drawable = XCreatePixmap(dpy, root, w, h, depth); 102 #if BAR_WINICON_PATCH 103 drw->picture = XRenderCreatePicture(dpy, drw->drawable, XRenderFindVisualFormat(dpy, visual), 0, NULL); 104 #endif // BAR_WINICON_PATCH 105 drw->gc = XCreateGC(dpy, drw->drawable, 0, NULL); 106 #else 107 drw->drawable = XCreatePixmap(dpy, root, w, h, DefaultDepth(dpy, screen)); 108 #if BAR_WINICON_PATCH 109 drw->picture = XRenderCreatePicture(dpy, drw->drawable, XRenderFindVisualFormat(dpy, DefaultVisual(dpy, screen)), 0, NULL); 110 #endif // BAR_WINICON_PATCH 111 drw->gc = XCreateGC(dpy, root, 0, NULL); 112 #endif // BAR_ALPHA_PATCH 113 XSetLineAttributes(dpy, drw->gc, 1, LineSolid, CapButt, JoinMiter); 114 115 return drw; 116 } 117 118 void 119 drw_resize(Drw *drw, unsigned int w, unsigned int h) 120 { 121 if (!drw) 122 return; 123 124 drw->w = w; 125 drw->h = h; 126 #if BAR_WINICON_PATCH 127 if (drw->picture) 128 XRenderFreePicture(drw->dpy, drw->picture); 129 #endif // BAR_WINICON_PATCH 130 if (drw->drawable) 131 XFreePixmap(drw->dpy, drw->drawable); 132 #if BAR_ALPHA_PATCH 133 drw->drawable = XCreatePixmap(drw->dpy, drw->root, w, h, drw->depth); 134 #if BAR_WINICON_PATCH 135 drw->picture = XRenderCreatePicture(drw->dpy, drw->drawable, XRenderFindVisualFormat(drw->dpy, drw->visual), 0, NULL); 136 #endif // BAR_WINICON_PATCH 137 #else // !BAR_ALPHA_PATCH 138 drw->drawable = XCreatePixmap(drw->dpy, drw->root, w, h, DefaultDepth(drw->dpy, drw->screen)); 139 #if BAR_WINICON_PATCH 140 drw->picture = XRenderCreatePicture(drw->dpy, drw->drawable, XRenderFindVisualFormat(drw->dpy, DefaultVisual(drw->dpy, drw->screen)), 0, NULL); 141 #endif // BAR_WINICON_PATCH 142 #endif // BAR_ALPHA_PATCH 143 } 144 145 void 146 drw_free(Drw *drw) 147 { 148 #if BAR_WINICON_PATCH 149 XRenderFreePicture(drw->dpy, drw->picture); 150 #endif // BAR_WINICON_PATCH 151 XFreePixmap(drw->dpy, drw->drawable); 152 XFreeGC(drw->dpy, drw->gc); 153 drw_fontset_free(drw->fonts); 154 free(drw); 155 } 156 157 #if BAR_PANGO_PATCH 158 /* This function is an implementation detail. Library users should use 159 * drw_font_create instead. 160 */ 161 static Fnt * 162 xfont_create(Drw *drw, const char *fontname) 163 { 164 Fnt *font; 165 PangoFontMap *fontmap; 166 PangoContext *context; 167 PangoFontDescription *desc; 168 PangoFontMetrics *metrics; 169 170 if (!fontname) { 171 die("no font specified."); 172 } 173 174 font = ecalloc(1, sizeof(Fnt)); 175 font->dpy = drw->dpy; 176 177 fontmap = pango_xft_get_font_map(drw->dpy, drw->screen); 178 context = pango_font_map_create_context(fontmap); 179 desc = pango_font_description_from_string(fontname); 180 font->layout = pango_layout_new(context); 181 pango_layout_set_font_description(font->layout, desc); 182 183 metrics = pango_context_get_metrics(context, desc, pango_language_from_string ("en-us")); 184 font->h = pango_font_metrics_get_height(metrics) / PANGO_SCALE; 185 186 pango_font_metrics_unref(metrics); 187 g_object_unref(context); 188 189 return font; 190 } 191 #else 192 /* This function is an implementation detail. Library users should use 193 * drw_fontset_create instead. 194 */ 195 static Fnt * 196 xfont_create(Drw *drw, const char *fontname, FcPattern *fontpattern) 197 { 198 Fnt *font; 199 XftFont *xfont = NULL; 200 FcPattern *pattern = NULL; 201 202 if (fontname) { 203 /* Using the pattern found at font->xfont->pattern does not yield the 204 * same substitution results as using the pattern returned by 205 * FcNameParse; using the latter results in the desired fallback 206 * behaviour whereas the former just results in missing-character 207 * rectangles being drawn, at least with some fonts. */ 208 if (!(xfont = XftFontOpenName(drw->dpy, drw->screen, fontname))) { 209 fprintf(stderr, "error, cannot load font from name: '%s'\n", fontname); 210 return NULL; 211 } 212 if (!(pattern = FcNameParse((FcChar8 *) fontname))) { 213 fprintf(stderr, "error, cannot parse font name to pattern: '%s'\n", fontname); 214 XftFontClose(drw->dpy, xfont); 215 return NULL; 216 } 217 } else if (fontpattern) { 218 if (!(xfont = XftFontOpenPattern(drw->dpy, fontpattern))) { 219 fprintf(stderr, "error, cannot load font from pattern.\n"); 220 return NULL; 221 } 222 } else { 223 die("no font specified."); 224 } 225 226 #if BAR_NO_COLOR_EMOJI_PATCH 227 /* Do not allow using color fonts. This is a workaround for a BadLength 228 * error from Xft with color glyphs. Modelled on the Xterm workaround. See 229 * https://bugzilla.redhat.com/show_bug.cgi?id=1498269 230 * https://lists.suckless.org/dev/1701/30932.html 231 * https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=916349 232 * and lots more all over the internet. 233 */ 234 FcBool iscol; 235 if (FcPatternGetBool(xfont->pattern, FC_COLOR, 0, &iscol) == FcResultMatch && iscol) { 236 XftFontClose(drw->dpy, xfont); 237 return NULL; 238 } 239 #endif // BAR_NO_COLOR_EMOJI_PATCH 240 241 font = ecalloc(1, sizeof(Fnt)); 242 font->xfont = xfont; 243 font->pattern = pattern; 244 font->h = xfont->ascent + xfont->descent; 245 font->dpy = drw->dpy; 246 247 return font; 248 } 249 #endif // BAR_PANGO_PATCH 250 251 static void 252 xfont_free(Fnt *font) 253 { 254 if (!font) 255 return; 256 #if BAR_PANGO_PATCH 257 if (font->layout) 258 g_object_unref(font->layout); 259 #else 260 if (font->pattern) 261 FcPatternDestroy(font->pattern); 262 XftFontClose(font->dpy, font->xfont); 263 #endif // BAR_PANGO_PATCH 264 free(font); 265 } 266 267 #if BAR_PANGO_PATCH 268 Fnt* 269 drw_font_create(Drw* drw, const char font[]) 270 { 271 Fnt *fnt = NULL; 272 273 if (!drw || !font) 274 return NULL; 275 276 fnt = xfont_create(drw, font); 277 278 return (drw->fonts = fnt); 279 } 280 #else 281 Fnt* 282 drw_fontset_create(Drw* drw, const char *fonts[], size_t fontcount) 283 { 284 Fnt *cur, *ret = NULL; 285 size_t i; 286 287 if (!drw || !fonts) 288 return NULL; 289 290 for (i = 1; i <= fontcount; i++) { 291 if ((cur = xfont_create(drw, fonts[fontcount - i], NULL))) { 292 cur->next = ret; 293 ret = cur; 294 } 295 } 296 return (drw->fonts = ret); 297 } 298 #endif // BAR_PANGO_PATCH 299 300 void 301 drw_fontset_free(Fnt *font) 302 { 303 if (font) { 304 #if !BAR_PANGO_PATCH 305 drw_fontset_free(font->next); 306 #endif // BAR_PANGO_PATCH 307 xfont_free(font); 308 } 309 } 310 311 void 312 drw_clr_create( 313 Drw *drw, 314 Clr *dest, 315 const char *clrname 316 #if BAR_ALPHA_PATCH 317 , unsigned int alpha 318 #endif // BAR_ALPHA_PATCH 319 ) { 320 if (!drw || !dest || !clrname) 321 return; 322 323 #if BAR_ALPHA_PATCH 324 if (!XftColorAllocName(drw->dpy, drw->visual, drw->cmap, 325 clrname, dest)) 326 #if DO_NOT_DIE_ON_COLOR_ALLOCATION_FAILURE_PATCH 327 fprintf(stderr, "warning, cannot allocate color '%s'", clrname); 328 #else 329 die("error, cannot allocate color '%s'", clrname); 330 #endif // DO_NOT_DIE_ON_COLOR_ALLOCATION_FAILURE_PATCH 331 332 dest->pixel = (dest->pixel & 0x00ffffffU) | (alpha << 24); 333 #else 334 if (!XftColorAllocName(drw->dpy, DefaultVisual(drw->dpy, drw->screen), 335 DefaultColormap(drw->dpy, drw->screen), 336 clrname, dest)) 337 #if DO_NOT_DIE_ON_COLOR_ALLOCATION_FAILURE_PATCH 338 fprintf(stderr, "warning, cannot allocate color '%s'", clrname); 339 #else 340 die("error, cannot allocate color '%s'", clrname); 341 #endif // DO_NOT_DIE_ON_COLOR_ALLOCATION_FAILURE_PATCH 342 343 #if NO_TRANSPARENT_BORDERS_PATCH 344 dest->pixel |= 0xff << 24; 345 #endif // NO_TRANSPARENT_BORDERS_PATCH 346 #endif // BAR_ALPHA_PATCH 347 } 348 349 /* Wrapper to create color schemes. The caller has to call free(3) on the 350 * returned color scheme when done using it. */ 351 Clr * 352 drw_scm_create( 353 Drw *drw, 354 char *clrnames[], 355 #if BAR_ALPHA_PATCH 356 const unsigned int alphas[], 357 #endif // BAR_ALPHA_PATCH 358 size_t clrcount 359 ) { 360 size_t i; 361 Clr *ret; 362 363 /* need at least two colors for a scheme */ 364 if (!drw || !clrnames || clrcount < 2 || !(ret = ecalloc(clrcount, sizeof(XftColor)))) 365 return NULL; 366 367 for (i = 0; i < clrcount; i++) 368 #if BAR_ALPHA_PATCH 369 drw_clr_create(drw, &ret[i], clrnames[i], alphas[i]); 370 #else 371 drw_clr_create(drw, &ret[i], clrnames[i]); 372 #endif // BAR_ALPHA_PATCH 373 return ret; 374 } 375 376 #if !BAR_PANGO_PATCH 377 void 378 drw_setfontset(Drw *drw, Fnt *set) 379 { 380 if (drw) 381 drw->fonts = set; 382 } 383 #endif // BAR_PANGO_PATCH 384 385 void 386 drw_setscheme(Drw *drw, Clr *scm) 387 { 388 if (drw) 389 drw->scheme = scm; 390 } 391 392 #if BAR_POWERLINE_TAGS_PATCH || BAR_POWERLINE_STATUS_PATCH 393 void 394 drw_settrans(Drw *drw, Clr *psc, Clr *nsc) 395 { 396 if (drw) { 397 transcheme[0] = psc[ColBg]; transcheme[1] = nsc[ColBg]; transcheme[2] = psc[ColBorder]; 398 drw->scheme = transcheme; 399 } 400 } 401 #endif // BAR_POWERLINE_TAGS_PATCH | BAR_POWERLINE_STATUS_PATCH 402 403 void 404 drw_rect(Drw *drw, int x, int y, unsigned int w, unsigned int h, int filled, int invert) 405 { 406 if (!drw || !drw->scheme) 407 return; 408 XSetForeground(drw->dpy, drw->gc, invert ? drw->scheme[ColBg].pixel : drw->scheme[ColFg].pixel); 409 if (filled) 410 XFillRectangle(drw->dpy, drw->drawable, drw->gc, x, y, w, h); 411 else 412 XDrawRectangle(drw->dpy, drw->drawable, drw->gc, x, y, w - 1, h - 1); 413 } 414 415 #if BIDI_PATCH 416 int 417 _drw_text(Drw *drw, int x, int y, unsigned int w, unsigned int h, unsigned int lpad, const char *text, int invert, Bool markup) 418 #else 419 int 420 drw_text(Drw *drw, int x, int y, unsigned int w, unsigned int h, unsigned int lpad, const char *text, int invert, Bool markup) 421 #endif // BIDI_PATCH 422 { 423 #if BAR_PANGO_PATCH 424 char buf[1024]; 425 int i, ty, th; 426 unsigned int ew, eh; 427 XftDraw *d = NULL; 428 size_t len; 429 int render = x || y || w || h; 430 431 if (!drw || (render && !drw->scheme) || !text || !drw->fonts) 432 return 0; 433 434 if (!render) { 435 w = ~w; 436 } else { 437 XSetForeground(drw->dpy, drw->gc, drw->scheme[invert ? ColFg : ColBg].pixel); 438 XFillRectangle(drw->dpy, drw->drawable, drw->gc, x, y, w, h); 439 if (w < lpad) 440 return x + w; 441 #if BAR_ALPHA_PATCH 442 d = XftDrawCreate(drw->dpy, drw->drawable, drw->visual, drw->cmap); 443 #else 444 d = XftDrawCreate(drw->dpy, drw->drawable, 445 DefaultVisual(drw->dpy, drw->screen), 446 DefaultColormap(drw->dpy, drw->screen)); 447 #endif // BAR_ALPHA_PATCH 448 x += lpad; 449 w -= lpad; 450 } 451 452 len = strlen(text); 453 454 if (len) { 455 drw_font_getexts(drw->fonts, text, len, &ew, &eh, markup); 456 th = eh; 457 /* shorten text if necessary */ 458 for (len = MIN(len, sizeof(buf) - 1); len && ew > w; len--) { 459 drw_font_getexts(drw->fonts, text, len, &ew, &eh, markup); 460 if (eh > th) 461 th = eh; 462 } 463 464 if (len) { 465 memcpy(buf, text, len); 466 buf[len] = '\0'; 467 if (len < strlen(text)) 468 for (i = len; i && i > len - 3; buf[--i] = '.') 469 ; /* NOP */ 470 471 if (render) { 472 ty = y + (h - th) / 2; 473 if (markup) 474 pango_layout_set_markup(drw->fonts->layout, buf, len); 475 else 476 pango_layout_set_text(drw->fonts->layout, buf, len); 477 pango_xft_render_layout(d, &drw->scheme[invert ? ColBg : ColFg], 478 drw->fonts->layout, x * PANGO_SCALE, ty * PANGO_SCALE); 479 if (markup) /* clear markup attributes */ 480 pango_layout_set_attributes(drw->fonts->layout, NULL); 481 } 482 x += ew; 483 w -= ew; 484 } 485 } 486 if (d) 487 XftDrawDestroy(d); 488 489 return x + (render ? w : 0); 490 #else 491 int ty, ellipsis_x = 0; 492 unsigned int tmpw, ew, ellipsis_w = 0, ellipsis_len, hash, h0, h1; 493 XftDraw *d = NULL; 494 Fnt *usedfont, *curfont, *nextfont; 495 int utf8strlen, utf8charlen, utf8err, render = x || y || w || h; 496 long utf8codepoint = 0; 497 const char *utf8str; 498 FcCharSet *fccharset; 499 FcPattern *fcpattern; 500 FcPattern *match; 501 XftResult result; 502 int charexists = 0, overflow = 0; 503 /* keep track of a couple codepoints for which we have no match. */ 504 static unsigned int nomatches[128], ellipsis_width, invalid_width; 505 static const char invalid[] = "�"; 506 507 if (!drw || (render && (!drw->scheme || !w)) || !text || !drw->fonts) 508 return 0; 509 510 if (!render) { 511 w = invert ? invert : ~invert; 512 } else { 513 XSetForeground(drw->dpy, drw->gc, drw->scheme[invert ? ColFg : ColBg].pixel); 514 XFillRectangle(drw->dpy, drw->drawable, drw->gc, x, y, w, h); 515 if (w < lpad) 516 return x + w; 517 #if BAR_ALPHA_PATCH 518 d = XftDrawCreate(drw->dpy, drw->drawable, drw->visual, drw->cmap); 519 #else 520 d = XftDrawCreate(drw->dpy, drw->drawable, 521 DefaultVisual(drw->dpy, drw->screen), 522 DefaultColormap(drw->dpy, drw->screen)); 523 #endif // BAR_ALPHA_PATCH 524 x += lpad; 525 w -= lpad; 526 } 527 528 usedfont = drw->fonts; 529 if (!ellipsis_width && render) 530 ellipsis_width = drw_fontset_getwidth(drw, "...", markup); 531 if (!invalid_width && render) 532 invalid_width = drw_fontset_getwidth(drw, invalid, markup); 533 while (1) { 534 ew = ellipsis_len = utf8err = utf8charlen = utf8strlen = 0; 535 utf8str = text; 536 nextfont = NULL; 537 while (*text) { 538 utf8charlen = utf8decode(text, &utf8codepoint, &utf8err); 539 for (curfont = drw->fonts; curfont; curfont = curfont->next) { 540 charexists = charexists || XftCharExists(drw->dpy, curfont->xfont, utf8codepoint); 541 if (charexists) { 542 drw_font_getexts(curfont, text, utf8charlen, &tmpw, NULL); 543 if (ew + ellipsis_width <= w) { 544 /* keep track where the ellipsis still fits */ 545 ellipsis_x = x + ew; 546 ellipsis_w = w - ew; 547 ellipsis_len = utf8strlen; 548 } 549 550 if (ew + tmpw > w) { 551 overflow = 1; 552 /* called from drw_fontset_getwidth_clamp(): 553 * it wants the width AFTER the overflow 554 */ 555 if (!render) 556 x += tmpw; 557 else 558 utf8strlen = ellipsis_len; 559 } else if (curfont == usedfont) { 560 text += utf8charlen; 561 utf8strlen += utf8err ? 0 : utf8charlen; 562 ew += utf8err ? 0 : tmpw; 563 } else { 564 nextfont = curfont; 565 } 566 break; 567 } 568 } 569 570 if (overflow || !charexists || nextfont || utf8err) 571 break; 572 else 573 charexists = 0; 574 } 575 576 if (utf8strlen) { 577 if (render) { 578 ty = y + (h - usedfont->h) / 2 + usedfont->xfont->ascent; 579 XftDrawStringUtf8(d, &drw->scheme[invert ? ColBg : ColFg], 580 usedfont->xfont, x, ty, (XftChar8 *)utf8str, utf8strlen); 581 } 582 x += ew; 583 w -= ew; 584 } 585 if (utf8err && (!render || invalid_width < w)) { 586 if (render) 587 drw_text(drw, x, y, w, h, 0, invalid, invert, markup); 588 x += invalid_width; 589 w -= invalid_width; 590 } 591 if (render && overflow) 592 drw_text(drw, ellipsis_x, y, ellipsis_w, h, 0, "...", invert, markup); 593 594 if (!*text || overflow) { 595 break; 596 } else if (nextfont) { 597 charexists = 0; 598 usedfont = nextfont; 599 } else { 600 /* Regardless of whether or not a fallback font is found, the 601 * character must be drawn. */ 602 charexists = 1; 603 604 hash = (unsigned int)utf8codepoint; 605 hash = ((hash >> 16) ^ hash) * 0x21F0AAAD; 606 hash = ((hash >> 15) ^ hash) * 0xD35A2D97; 607 h0 = ((hash >> 15) ^ hash) % LENGTH(nomatches); 608 h1 = (hash >> 17) % LENGTH(nomatches); 609 /* avoid expensive XftFontMatch call when we know we won't find a match */ 610 if (nomatches[h0] == utf8codepoint || nomatches[h1] == utf8codepoint) 611 goto no_match; 612 613 fccharset = FcCharSetCreate(); 614 FcCharSetAddChar(fccharset, utf8codepoint); 615 616 if (!drw->fonts->pattern) { 617 /* Refer to the comment in xfont_create for more information. */ 618 die("the first font in the cache must be loaded from a font string."); 619 } 620 621 fcpattern = FcPatternDuplicate(drw->fonts->pattern); 622 FcPatternAddCharSet(fcpattern, FC_CHARSET, fccharset); 623 FcPatternAddBool(fcpattern, FC_SCALABLE, FcTrue); 624 #if BAR_NO_COLOR_EMOJI_PATCH 625 FcPatternAddBool(fcpattern, FC_COLOR, FcFalse); 626 #endif // BAR_NO_COLOR_EMOJI_PATCH 627 628 FcConfigSubstitute(NULL, fcpattern, FcMatchPattern); 629 FcDefaultSubstitute(fcpattern); 630 match = XftFontMatch(drw->dpy, drw->screen, fcpattern, &result); 631 632 FcCharSetDestroy(fccharset); 633 FcPatternDestroy(fcpattern); 634 635 if (match) { 636 usedfont = xfont_create(drw, NULL, match); 637 if (usedfont && XftCharExists(drw->dpy, usedfont->xfont, utf8codepoint)) { 638 for (curfont = drw->fonts; curfont->next; curfont = curfont->next) 639 ; /* NOP */ 640 curfont->next = usedfont; 641 } else { 642 xfont_free(usedfont); 643 nomatches[nomatches[h0] ? h1 : h0] = utf8codepoint; 644 no_match: 645 usedfont = drw->fonts; 646 } 647 } 648 } 649 } 650 if (d) 651 XftDrawDestroy(d); 652 653 return x + (render ? w : 0); 654 #endif // BAR_PANGO_PATCH 655 } 656 657 #if BIDI_PATCH 658 int 659 drw_text(Drw *drw, int x, int y, unsigned int w, unsigned int h, unsigned int lpad, const char *text, int invert, Bool markup) 660 { 661 apply_fribidi(text); 662 return _drw_text(drw, x, y, w, h, lpad, fribidi_text, invert, markup); 663 } 664 #endif // BIDI_PATCH 665 666 #if BAR_POWERLINE_TAGS_PATCH || BAR_POWERLINE_STATUS_PATCH 667 void 668 drw_arrow(Drw *drw, int x, int y, unsigned int w, unsigned int h, int direction, int slash) 669 { 670 if (!drw || !drw->scheme) 671 return; 672 673 /* direction=1 draws right arrow */ 674 x = direction ? x : x + w; 675 w = direction ? w : -w; 676 /* slash=1 draws slash instead of arrow */ 677 unsigned int hh = slash ? (direction ? 0 : h) : h/2; 678 679 XPoint points[] = { 680 {x , y }, 681 {x + w, y + hh }, 682 {x , y + h }, 683 }; 684 685 XPoint bg[] = { 686 {x , y }, 687 {x + w, y }, 688 {x + w, y + h}, 689 {x , y + h}, 690 }; 691 692 XSetForeground(drw->dpy, drw->gc, drw->scheme[ColBg].pixel); 693 XFillPolygon(drw->dpy, drw->drawable, drw->gc, bg, 4, Convex, CoordModeOrigin); 694 XSetForeground(drw->dpy, drw->gc, drw->scheme[ColFg].pixel); 695 XFillPolygon(drw->dpy, drw->drawable, drw->gc, points, 3, Nonconvex, CoordModeOrigin); 696 } 697 #endif // BAR_POWERLINE_TAGS_PATCH | BAR_POWERLINE_STATUS_PATCH 698 699 void 700 drw_map(Drw *drw, Window win, int x, int y, unsigned int w, unsigned int h) 701 { 702 if (!drw) 703 return; 704 705 XCopyArea(drw->dpy, drw->drawable, win, drw->gc, x, y, w, h, x, y); 706 XSync(drw->dpy, False); 707 } 708 709 unsigned int 710 drw_fontset_getwidth(Drw *drw, const char *text, Bool markup) 711 { 712 if (!drw || !drw->fonts || !text) 713 return 0; 714 return drw_text(drw, 0, 0, 0, 0, 0, text, 0, markup); 715 } 716 717 #if BAR_PANGO_PATCH 718 void 719 drw_font_getexts(Fnt *font, const char *text, unsigned int len, unsigned int *w, unsigned int *h, Bool markup) 720 { 721 if (!font || !text) 722 return; 723 724 PangoRectangle r; 725 if (markup) 726 pango_layout_set_markup(font->layout, text, len); 727 else 728 pango_layout_set_text(font->layout, text, len); 729 pango_layout_get_extents(font->layout, 0, &r); 730 if (markup) /* clear markup attributes */ 731 pango_layout_set_attributes(font->layout, NULL); 732 if (w) 733 *w = r.width / PANGO_SCALE; 734 if (h) 735 *h = r.height / PANGO_SCALE; 736 } 737 #else 738 void 739 drw_font_getexts(Fnt *font, const char *text, unsigned int len, unsigned int *w, unsigned int *h) 740 { 741 XGlyphInfo ext; 742 743 if (!font || !text) 744 return; 745 746 XftTextExtentsUtf8(font->dpy, font->xfont, (XftChar8 *)text, len, &ext); 747 if (w) 748 *w = ext.xOff; 749 if (h) 750 *h = font->h; 751 } 752 #endif // BAR_PANGO_PATCH 753 754 Cur * 755 drw_cur_create(Drw *drw, int shape) 756 { 757 Cur *cur; 758 759 if (!drw || !(cur = ecalloc(1, sizeof(Cur)))) 760 return NULL; 761 762 cur->cursor = XCreateFontCursor(drw->dpy, shape); 763 764 return cur; 765 } 766 767 void 768 drw_cur_free(Drw *drw, Cur *cursor) 769 { 770 if (!cursor) 771 return; 772 773 XFreeCursor(drw->dpy, cursor->cursor); 774 free(cursor); 775 }