… | |
… | |
32 | #ifndef NO_SLOW_LINK_SUPPORT |
32 | #ifndef NO_SLOW_LINK_SUPPORT |
33 | # include <sys/socket.h> |
33 | # include <sys/socket.h> |
34 | # include <sys/un.h> |
34 | # include <sys/un.h> |
35 | #endif |
35 | #endif |
36 | |
36 | |
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37 | #if XFT |
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38 | # include <X11/extensions/Xrender.h> |
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39 | #endif |
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40 | |
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41 | const char *const xa_names[] = |
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42 | { |
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43 | "TEXT", |
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44 | "COMPOUND_TEXT", |
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45 | "UTF8_STRING", |
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46 | "MULTIPLE", |
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47 | "TARGETS", |
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48 | "TIMESTAMP", |
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49 | "VT_SELECTION", |
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50 | "INCR", |
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51 | "WM_PROTOCOLS", |
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52 | "WM_DELETE_WINDOW", |
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53 | "CLIPBOARD", |
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54 | "AVERAGE_WIDTH", |
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55 | "WEIGHT_NAME", |
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56 | "SLANT", |
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57 | "CHARSET_REGISTRY", |
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58 | "CHARSET_ENCODING", |
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59 | #if ENABLE_FRILLS |
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60 | "_MOTIF_WM_HINTS", |
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61 | #endif |
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62 | #if ENABLE_EWMH |
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63 | "_NET_WM_PID", |
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64 | "_NET_WM_NAME", |
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65 | "_NET_WM_ICON_NAME", |
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66 | "_NET_WM_PING", |
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67 | #endif |
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68 | #if USE_XIM |
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69 | "WM_LOCALE_NAME", |
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70 | "XIM_SERVERS", |
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71 | #endif |
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72 | #ifdef TRANSPARENT |
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73 | "_XROOTPMAP_ID", |
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74 | "ESETROOT_PMAP_ID", |
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75 | #endif |
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76 | #if ENABLE_XEMBED |
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77 | "_XEMBED", |
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78 | "_XEMBED_INFO", |
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79 | #endif |
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80 | #if !ENABLE_MINIMAL |
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81 | "SCREEN_RESOURCES", |
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82 | "XDCCC_LINEAR_RGB_CORRECTION", |
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83 | "XDCCC_LINEAR_RGB_MATRICES", |
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84 | "WM_COLORMAP_WINDOWS", |
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85 | "WM_STATE", |
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86 | "cursor", |
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87 | # if USE_XIM |
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88 | "TRANSPORT", |
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89 | "LOCALES", |
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90 | "_XIM_PROTOCOL", |
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91 | "_XIM_XCONNECT", |
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92 | "_XIM_MOREDATA", |
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93 | # endif |
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94 | #endif |
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95 | }; |
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96 | |
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97 | ///////////////////////////////////////////////////////////////////////////// |
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98 | |
37 | refcounted::refcounted (const char *id) |
99 | refcounted::refcounted (const char *id) |
38 | { |
100 | { |
39 | this->id = strdup (id); |
101 | this->id = strdup (id); |
40 | } |
102 | } |
41 | |
103 | |
… | |
… | |
139 | |
201 | |
140 | #endif |
202 | #endif |
141 | |
203 | |
142 | ///////////////////////////////////////////////////////////////////////////// |
204 | ///////////////////////////////////////////////////////////////////////////// |
143 | |
205 | |
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206 | void |
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207 | rxvt_screen::set (rxvt_display *disp) |
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208 | { |
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209 | display = disp; |
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210 | xdisp = disp->display; |
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211 | |
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212 | Screen *screen = ScreenOfDisplay (xdisp, disp->screen); |
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213 | |
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214 | depth = DefaultDepthOfScreen (screen); |
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215 | visual = DefaultVisualOfScreen (screen); |
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216 | cmap = DefaultColormapOfScreen (screen); |
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217 | } |
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218 | |
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219 | void |
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220 | rxvt_screen::set (rxvt_display *disp, int bitdepth) |
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221 | { |
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222 | set (disp); |
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223 | |
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224 | #if XFT |
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225 | XVisualInfo vinfo; |
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226 | |
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227 | if (XMatchVisualInfo (xdisp, display->screen, bitdepth, TrueColor, &vinfo)) |
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228 | { |
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229 | depth = bitdepth; |
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230 | visual = vinfo.visual; |
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231 | cmap = XCreateColormap (xdisp, disp->root, visual, AllocNone); |
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232 | } |
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233 | #endif |
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234 | } |
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235 | |
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236 | void |
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237 | rxvt_screen::clear () |
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238 | { |
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239 | if (cmap != DefaultColormapOfScreen (ScreenOfDisplay (xdisp, display->screen))) |
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240 | XFreeColormap (xdisp, cmap); |
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241 | } |
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242 | |
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243 | ///////////////////////////////////////////////////////////////////////////// |
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244 | |
144 | rxvt_display::rxvt_display (const char *id) |
245 | rxvt_display::rxvt_display (const char *id) |
145 | : refcounted (id) |
246 | : refcounted (id) |
146 | , x_ev (this, &rxvt_display::x_cb) |
247 | , x_ev (this, &rxvt_display::x_cb) |
147 | , selection_owner (0) |
248 | , selection_owner (0) |
148 | { |
249 | { |
… | |
… | |
249 | if (!display) |
350 | if (!display) |
250 | return false; |
351 | return false; |
251 | |
352 | |
252 | screen = DefaultScreen (display); |
353 | screen = DefaultScreen (display); |
253 | root = DefaultRootWindow (display); |
354 | root = DefaultRootWindow (display); |
254 | visual = DefaultVisual (display, screen); |
355 | |
255 | cmap = DefaultColormap (display, screen); |
356 | assert (sizeof (xa_names) / sizeof (char *) == NUM_XA); |
256 | depth = DefaultDepth (display, screen); |
357 | XInternAtoms (display, (char **)xa_names, NUM_XA, False, xa); |
257 | |
358 | |
258 | XrmSetDatabase (display, get_resources ()); |
359 | XrmSetDatabase (display, get_resources ()); |
259 | |
360 | |
260 | #ifdef POINTER_BLANK |
361 | #ifdef POINTER_BLANK |
261 | XColor blackcolour; |
362 | XColor blackcolour; |
… | |
… | |
266 | blank_cursor = XCreateGlyphCursor (display, f, f, ' ', ' ', |
367 | blank_cursor = XCreateGlyphCursor (display, f, f, ' ', ' ', |
267 | &blackcolour, &blackcolour); |
368 | &blackcolour, &blackcolour); |
268 | XUnloadFont (display, f); |
369 | XUnloadFont (display, f); |
269 | #endif |
370 | #endif |
270 | |
371 | |
271 | #ifdef PREFER_24BIT |
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272 | /* |
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273 | * If depth is not 24, look for a 24bit visual. |
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274 | */ |
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275 | if (depth != 24) |
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276 | { |
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277 | XVisualInfo vinfo; |
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278 | |
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279 | if (XMatchVisualInfo (display, screen, 24, TrueColor, &vinfo)) |
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280 | { |
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281 | depth = 24; |
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282 | visual = vinfo.visual; |
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283 | cmap = XCreateColormap (display, |
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284 | RootWindow (display, screen), |
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285 | visual, AllocNone); |
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286 | } |
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287 | } |
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288 | #endif |
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289 | |
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290 | int fd = XConnectionNumber (display); |
372 | int fd = XConnectionNumber (display); |
291 | |
373 | |
292 | #ifndef NO_SLOW_LINK_SUPPORT |
374 | #ifndef NO_SLOW_LINK_SUPPORT |
293 | // try to detect wether we have a local connection. |
375 | // try to detect wether we have a local connection. |
294 | // assume unix domains socket == local, everything else not |
376 | // assume unix domains socket == local, everything else not |
… | |
… | |
303 | |
385 | |
304 | x_ev.start (fd, EVENT_READ); |
386 | x_ev.start (fd, EVENT_READ); |
305 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
387 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
306 | |
388 | |
307 | XSelectInput (display, root, PropertyChangeMask); |
389 | XSelectInput (display, root, PropertyChangeMask); |
308 | #ifdef USE_XIM |
|
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309 | xa_xim_servers = XInternAtom (display, "XIM_SERVERS", 0); |
|
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310 | #endif |
|
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311 | |
390 | |
312 | flush (); |
391 | flush (); |
313 | |
392 | |
314 | return true; |
393 | return true; |
315 | } |
394 | } |
316 | |
395 | |
317 | void |
396 | void |
318 | rxvt_display::ref_next () |
397 | rxvt_display::ref_next () |
319 | { |
398 | { |
320 | // TODO: somehow check wether the database files/resources changed |
399 | // TODO: somehow check wether the database files/resources changed |
321 | // before re-loading/parsing |
400 | // before affording re-loading/parsing |
322 | XrmDestroyDatabase (XrmGetDatabase (display)); |
401 | XrmDestroyDatabase (XrmGetDatabase (display)); |
323 | XrmSetDatabase (display, get_resources ()); |
402 | XrmSetDatabase (display, get_resources ()); |
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403 | printf ("next\n");//D |
324 | } |
404 | } |
325 | |
405 | |
326 | rxvt_display::~rxvt_display () |
406 | rxvt_display::~rxvt_display () |
327 | { |
407 | { |
328 | if (!display) |
408 | if (!display) |
… | |
… | |
351 | // registers, as xlib crashes due to a race otherwise. |
431 | // registers, as xlib crashes due to a race otherwise. |
352 | Atom actual_type, *atoms; |
432 | Atom actual_type, *atoms; |
353 | int actual_format; |
433 | int actual_format; |
354 | unsigned long nitems, bytes_after; |
434 | unsigned long nitems, bytes_after; |
355 | |
435 | |
356 | if (XGetWindowProperty (display, root, xa_xim_servers, 0L, 1000000L, |
436 | if (XGetWindowProperty (display, root, xa[XA_XIM_SERVERS], 0L, 1000000L, |
357 | False, XA_ATOM, &actual_type, &actual_format, |
437 | False, XA_ATOM, &actual_type, &actual_format, |
358 | &nitems, &bytes_after, (unsigned char **)&atoms) |
438 | &nitems, &bytes_after, (unsigned char **)&atoms) |
359 | != Success ) |
439 | != Success ) |
360 | return; |
440 | return; |
361 | |
441 | |
… | |
… | |
381 | #ifdef USE_XIM |
461 | #ifdef USE_XIM |
382 | if (!XFilterEvent (&xev, None)) |
462 | if (!XFilterEvent (&xev, None)) |
383 | { |
463 | { |
384 | if (xev.type == PropertyNotify |
464 | if (xev.type == PropertyNotify |
385 | && xev.xany.window == root |
465 | && xev.xany.window == root |
386 | && xev.xproperty.atom == xa_xim_servers) |
466 | && xev.xproperty.atom == xa[XA_XIM_SERVERS]) |
387 | im_change_check (); |
467 | im_change_check (); |
388 | #endif |
468 | #endif |
389 | for (int i = xw.size (); i--; ) |
469 | for (int i = xw.size (); i--; ) |
390 | { |
470 | { |
391 | if (!xw[i]) |
471 | if (!xw[i]) |
… | |
… | |
429 | |
509 | |
430 | selection_owner = owner; |
510 | selection_owner = owner; |
431 | } |
511 | } |
432 | |
512 | |
433 | #ifdef USE_XIM |
513 | #ifdef USE_XIM |
|
|
514 | |
434 | void rxvt_display::reg (im_watcher *w) |
515 | void rxvt_display::reg (im_watcher *w) |
435 | { |
516 | { |
436 | imw.push_back (w); |
517 | imw.push_back (w); |
437 | } |
518 | } |
438 | |
519 | |
… | |
… | |
462 | return xim; |
543 | return xim; |
463 | } |
544 | } |
464 | |
545 | |
465 | void rxvt_display::put_xim (rxvt_xim *xim) |
546 | void rxvt_display::put_xim (rxvt_xim *xim) |
466 | { |
547 | { |
467 | #if XLIB_IS_RACEFREE |
548 | # if XLIB_IS_RACEFREE |
468 | xims.put (xim); |
549 | xims.put (xim); |
469 | #endif |
550 | # endif |
470 | } |
551 | } |
|
|
552 | |
471 | #endif |
553 | #endif |
472 | |
554 | |
473 | Atom rxvt_display::atom (const char *name) |
555 | Atom rxvt_display::atom (const char *name) |
474 | { |
556 | { |
475 | return XInternAtom (display, name, False); |
557 | return XInternAtom (display, name, False); |
… | |
… | |
479 | |
561 | |
480 | template class refcache<rxvt_display>; |
562 | template class refcache<rxvt_display>; |
481 | refcache<rxvt_display> displays; |
563 | refcache<rxvt_display> displays; |
482 | |
564 | |
483 | ///////////////////////////////////////////////////////////////////////////// |
565 | ///////////////////////////////////////////////////////////////////////////// |
484 | |
566 | |
485 | bool |
567 | bool |
486 | rxvt_color::set (rxvt_display *display, Pixel p) |
568 | rxvt_color::alloc (rxvt_screen *screen, const rgba &color) |
487 | { |
569 | { |
488 | #if XFT |
570 | #if XFT |
489 | XColor xc; |
571 | XRenderPictFormat *format; |
490 | |
572 | |
491 | xc.pixel = p; |
573 | // FUCKING Xft gets it wrong, of course, so work around it |
492 | if (!XQueryColor (display->display, display->cmap, &xc)) |
574 | // transparency users should eat shit and die, and then |
493 | return false; |
575 | // XRenderQueryPictIndexValues themselves plenty. |
|
|
576 | if ((screen->visual->c_class == TrueColor || screen->visual->c_class == DirectColor) |
|
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577 | && (format = XRenderFindVisualFormat (screen->xdisp, screen->visual))) |
|
|
578 | { |
|
|
579 | // the fun lies in doing everything manually... |
|
|
580 | c.color.red = color.r; |
|
|
581 | c.color.green = color.g; |
|
|
582 | c.color.blue = color.b; |
|
|
583 | c.color.alpha = color.a; |
494 | |
584 | |
|
|
585 | c.pixel = ((color.r * format->direct.redMask / rgba::MAX_CC) << format->direct.red ) |
|
|
586 | | ((color.g * format->direct.greenMask / rgba::MAX_CC) << format->direct.green) |
|
|
587 | | ((color.b * format->direct.blueMask / rgba::MAX_CC) << format->direct.blue ) |
|
|
588 | | ((color.a * format->direct.alphaMask / rgba::MAX_CC) << format->direct.alpha); |
|
|
589 | |
|
|
590 | return true; |
|
|
591 | } |
|
|
592 | else |
|
|
593 | { |
495 | XRenderColor d; |
594 | XRenderColor d; |
496 | |
595 | |
497 | d.red = xc.red; |
596 | d.red = color.r; |
498 | d.green = xc.green; |
597 | d.green = color.g; |
499 | d.blue = xc.blue; |
598 | d.blue = color.b; |
500 | d.alpha = 0xffff; |
599 | d.alpha = color.a; |
501 | |
600 | |
502 | return |
601 | return XftColorAllocValue (screen->xdisp, screen->visual, screen->cmap, &d, &c); |
503 | XftColorAllocValue (display->display, |
602 | } |
504 | display->visual, |
|
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505 | display->cmap, |
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506 | &d, &c); |
|
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507 | #else |
603 | #else |
508 | this->p = p; |
604 | c.red = color.r; |
509 | #endif |
605 | c.green = color.g; |
|
|
606 | c.blue = color.b; |
510 | |
607 | |
|
|
608 | if (screen->visual->c_class == TrueColor || screen->visual->c_class == DirectColor) |
|
|
609 | { |
|
|
610 | c.pixel = (color.r * (screen->visual->red_mask >> ctz (screen->visual->red_mask )) |
|
|
611 | / rgba::MAX_CC) << ctz (screen->visual->red_mask ) |
|
|
612 | | (color.g * (screen->visual->green_mask >> ctz (screen->visual->green_mask)) |
|
|
613 | / rgba::MAX_CC) << ctz (screen->visual->green_mask) |
|
|
614 | | (color.b * (screen->visual->blue_mask >> ctz (screen->visual->blue_mask )) |
|
|
615 | / rgba::MAX_CC) << ctz (screen->visual->blue_mask ); |
|
|
616 | |
|
|
617 | return true; |
|
|
618 | } |
|
|
619 | else if (XAllocColor (screen->xdisp, screen->cmap, &c)) |
511 | return true; |
620 | return true; |
|
|
621 | else |
|
|
622 | c.pixel = (color.r + color.g + color.b) > 128*3 |
|
|
623 | ? WhitePixelOfScreen (DefaultScreenOfDisplay (screen->xdisp)) |
|
|
624 | : BlackPixelOfScreen (DefaultScreenOfDisplay (screen->xdisp)); |
|
|
625 | #endif |
|
|
626 | |
|
|
627 | return false; |
512 | } |
628 | } |
513 | |
629 | |
514 | bool |
630 | bool |
515 | rxvt_color::set (rxvt_display *display, const char *name) |
631 | rxvt_color::set (rxvt_screen *screen, const char *name) |
|
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632 | { |
|
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633 | rgba c; |
|
|
634 | char eos; |
|
|
635 | int skip; |
|
|
636 | |
|
|
637 | // parse the nonstandard "[alphapercent]" prefix |
|
|
638 | if (1 <= sscanf (name, "[%hd]%n", &c.a, &skip)) |
|
|
639 | { |
|
|
640 | c.a = lerp<int, int, int> (0, rgba::MAX_CC, c.a); |
|
|
641 | name += skip; |
|
|
642 | } |
|
|
643 | else |
|
|
644 | c.a = rgba::MAX_CC; |
|
|
645 | |
|
|
646 | // parse the non-standard "rgba:rrrr/gggg/bbbb/aaaa" format |
|
|
647 | if (strlen (name) != 4+5*4 || 4 != sscanf (name, "rgba:%4hx/%4hx/%4hx/%4hx%c", &c.r, &c.g, &c.b, &c.a, &eos)) |
|
|
648 | { |
|
|
649 | XColor xc, xc_exact; |
|
|
650 | |
|
|
651 | if (XParseColor (screen->xdisp, screen->cmap, name, &xc)) |
|
|
652 | { |
|
|
653 | c.r = xc.red; |
|
|
654 | c.g = xc.green; |
|
|
655 | c.b = xc.blue; |
|
|
656 | } |
|
|
657 | else |
|
|
658 | { |
|
|
659 | c.r = 0xffff; |
|
|
660 | c.g = 0x6969; |
|
|
661 | c.b = 0xb4b4; |
|
|
662 | |
|
|
663 | rxvt_warn ("unable to parse color '%s', using pink instead.\n", name); |
|
|
664 | } |
|
|
665 | } |
|
|
666 | |
|
|
667 | return set (screen, c); |
|
|
668 | } |
|
|
669 | |
|
|
670 | bool |
|
|
671 | rxvt_color::set (rxvt_screen *screen, const rgba &color) |
|
|
672 | { |
|
|
673 | bool got = alloc (screen, color); |
|
|
674 | |
|
|
675 | #if !ENABLE_MINIMAL |
|
|
676 | int cmap_size = screen->visual->map_entries; |
|
|
677 | |
|
|
678 | if (!got |
|
|
679 | && screen->visual->c_class == PseudoColor |
|
|
680 | && cmap_size < 4096) |
|
|
681 | { |
|
|
682 | XColor *colors = new XColor [screen->visual->map_entries]; |
|
|
683 | |
|
|
684 | for (int i = 0; i < cmap_size; i++) |
|
|
685 | colors [i].pixel = i; |
|
|
686 | |
|
|
687 | // many kilobytes transfer per colour, but pseudocolor isn't worth |
|
|
688 | // many extra optimisations. |
|
|
689 | XQueryColors (screen->xdisp, screen->cmap, colors, cmap_size); |
|
|
690 | |
|
|
691 | int diff = 0x7fffffffUL; |
|
|
692 | XColor *best = colors; |
|
|
693 | |
|
|
694 | for (int i = 0; i < cmap_size; i++) |
|
|
695 | { |
|
|
696 | int d = (squared_diff<int> (color.r >> 2, colors [i].red >> 2)) |
|
|
697 | + (squared_diff<int> (color.g >> 2, colors [i].green >> 2)) |
|
|
698 | + (squared_diff<int> (color.b >> 2, colors [i].blue >> 2)); |
|
|
699 | |
|
|
700 | if (d < diff) |
|
|
701 | { |
|
|
702 | diff = d; |
|
|
703 | best = colors + i; |
|
|
704 | } |
|
|
705 | } |
|
|
706 | |
|
|
707 | //rxvt_warn ("could not allocate %04x %04x %04x, getting %04x %04x %04x instead (%d)\n", |
|
|
708 | // color.r, color.g, color.b, best->red, best->green, best->blue, diff); |
|
|
709 | |
|
|
710 | got = alloc (screen, rgba (best->red, best->green, best->blue)); |
|
|
711 | |
|
|
712 | delete colors; |
|
|
713 | } |
|
|
714 | #endif |
|
|
715 | |
|
|
716 | return got; |
|
|
717 | } |
|
|
718 | |
|
|
719 | void |
|
|
720 | rxvt_color::get (rgba &color) |
516 | { |
721 | { |
517 | #if XFT |
722 | #if XFT |
518 | return XftColorAllocName (display->display, display->visual, display->cmap, |
723 | color.r = c.color.red; |
519 | name, &c); |
724 | color.g = c.color.green; |
|
|
725 | color.b = c.color.blue; |
|
|
726 | color.a = c.color.alpha; |
520 | #else |
727 | #else |
521 | XColor xc; |
728 | color.r = c.red; |
522 | |
729 | color.g = c.green; |
523 | if (XParseColor (display->display, display->cmap, name, &xc)) |
730 | color.b = c.blue; |
524 | return set (display, xc.red, xc.green, xc.blue); |
731 | color.a = rgba::MAX_CC; |
525 | |
|
|
526 | return false; |
|
|
527 | #endif |
732 | #endif |
528 | } |
733 | } |
529 | |
734 | |
530 | bool |
735 | void |
531 | rxvt_color::set (rxvt_display *display, unsigned short cr, unsigned short cg, unsigned short cb) |
736 | rxvt_color::get (XColor &color) |
532 | { |
737 | { |
533 | XColor xc; |
738 | rgba c; |
|
|
739 | get (c); |
534 | |
740 | |
535 | xc.red = cr; |
741 | color.red = c.r; |
536 | xc.green = cg; |
742 | color.green = c.g; |
537 | xc.blue = cb; |
743 | color.blue = c.b; |
538 | xc.flags = DoRed | DoGreen | DoBlue; |
744 | color.pixel = (Pixel)*this; |
539 | |
|
|
540 | if (XAllocColor (display->display, display->cmap, &xc)) |
|
|
541 | return set (display, xc.pixel); |
|
|
542 | |
|
|
543 | return false; |
|
|
544 | } |
745 | } |
545 | |
746 | |
546 | void |
747 | void |
547 | rxvt_color::get (rxvt_display *display, unsigned short &cr, unsigned short &cg, unsigned short &cb) |
748 | rxvt_color::free (rxvt_screen *screen) |
548 | { |
749 | { |
549 | #if XFT |
750 | #if XFT |
550 | cr = c.color.red; |
751 | XftColorFree (screen->xdisp, screen->visual, screen->cmap, &c); |
551 | cg = c.color.green; |
|
|
552 | cb = c.color.blue; |
|
|
553 | #else |
752 | #else |
554 | XColor c; |
753 | XFreeColors (screen->xdisp, screen->cmap, &c.pixel, 1, AllPlanes); |
555 | |
|
|
556 | c.pixel = p; |
|
|
557 | XQueryColor (display->display, display->cmap, &c); |
|
|
558 | |
|
|
559 | cr = c.red; |
|
|
560 | cg = c.green; |
|
|
561 | cb = c.blue; |
|
|
562 | #endif |
754 | #endif |
563 | } |
755 | } |
564 | |
756 | |
565 | void |
757 | void |
566 | rxvt_color::free (rxvt_display *display) |
758 | rxvt_color::fade (rxvt_screen *screen, int percent, rxvt_color &result, const rgba &to) |
567 | { |
759 | { |
568 | #if XFT |
760 | rgba c; |
569 | XftColorFree (display->display, display->visual, display->cmap, &c); |
761 | get (c); |
570 | #else |
|
|
571 | XFreeColors (display->display, display->cmap, &p, 1, AllPlanes); |
|
|
572 | #endif |
|
|
573 | } |
|
|
574 | |
762 | |
575 | rxvt_color |
763 | result.set ( |
576 | rxvt_color::fade (rxvt_display *display, int percent) |
764 | screen, |
577 | { |
765 | rgba ( |
578 | percent = 100 - percent; |
766 | lerp (c.r, to.r, percent), |
579 | |
767 | lerp (c.g, to.g, percent), |
580 | unsigned short cr, cg, cb; |
768 | lerp (c.b, to.b, percent), |
581 | rxvt_color faded; |
769 | lerp (c.a, to.a, percent) |
582 | |
770 | ) |
583 | get (display, cr, cg, cb); |
|
|
584 | |
|
|
585 | faded.set ( |
|
|
586 | display, |
|
|
587 | cr * percent / 100, |
|
|
588 | cg * percent / 100, |
|
|
589 | cb * percent / 100 |
|
|
590 | ); |
771 | ); |
591 | |
|
|
592 | return faded; |
|
|
593 | } |
772 | } |
594 | |
773 | |
595 | #define LERP(a,b,p) (a * p + b * (100 - p)) / 100 |
|
|
596 | |
|
|
597 | rxvt_color |
|
|
598 | rxvt_color::fade (rxvt_display *display, int percent, rxvt_color &fadeto) |
|
|
599 | { |
|
|
600 | percent = 100 - percent; |
|
|
601 | |
|
|
602 | unsigned short cr, cg, cb; |
|
|
603 | unsigned short fcr, fcg, fcb; |
|
|
604 | rxvt_color faded; |
|
|
605 | |
|
|
606 | get (display, cr, cg, cb); |
|
|
607 | fadeto.get(display, fcr, fcg, fcb); |
|
|
608 | |
|
|
609 | faded.set ( |
|
|
610 | display, |
|
|
611 | LERP (cr, fcr, percent), |
|
|
612 | LERP (cg, fcg, percent), |
|
|
613 | LERP (cb, fcb, percent) |
|
|
614 | ); |
|
|
615 | |
|
|
616 | return faded; |
|
|
617 | } |
|
|
618 | |
|
|