| 1 |
/*----------------------------------------------------------------------* |
| 2 |
* File: background.C |
| 3 |
*----------------------------------------------------------------------* |
| 4 |
* |
| 5 |
* All portions of code are copyright by their respective author/s. |
| 6 |
* Copyright (c) 2005-2008 Marc Lehmann <schmorp@schmorp.de> |
| 7 |
* Copyright (c) 2007 Sasha Vasko <sasha@aftercode.net> |
| 8 |
* Copyright (c) 2010-2012 Emanuele Giaquinta <e.giaquinta@glauco.it> |
| 9 |
* |
| 10 |
* This program is free software; you can redistribute it and/or modify |
| 11 |
* it under the terms of the GNU General Public License as published by |
| 12 |
* the Free Software Foundation; either version 3 of the License, or |
| 13 |
* (at your option) any later version. |
| 14 |
* |
| 15 |
* This program is distributed in the hope that it will be useful, |
| 16 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 17 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 18 |
* GNU General Public License for more details. |
| 19 |
* |
| 20 |
* You should have received a copy of the GNU General Public License |
| 21 |
* along with this program; if not, write to the Free Software |
| 22 |
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 23 |
*---------------------------------------------------------------------*/ |
| 24 |
|
| 25 |
#include "../config.h" /* NECESSARY */ |
| 26 |
#include "rxvt.h" /* NECESSARY */ |
| 27 |
|
| 28 |
#ifdef HAVE_BG_PIXMAP |
| 29 |
|
| 30 |
void |
| 31 |
rxvt_term::bg_destroy () |
| 32 |
{ |
| 33 |
# if BG_IMAGE_FROM_ROOT |
| 34 |
delete root_img; |
| 35 |
root_img = 0; |
| 36 |
# endif |
| 37 |
|
| 38 |
# if BG_IMAGE_FROM_FILE |
| 39 |
fimage.destroy (); |
| 40 |
# endif |
| 41 |
} |
| 42 |
|
| 43 |
bool |
| 44 |
rxvt_term::bg_window_size_sensitive () |
| 45 |
{ |
| 46 |
# if BG_IMAGE_FROM_ROOT |
| 47 |
if (root_img) |
| 48 |
return true; |
| 49 |
# endif |
| 50 |
|
| 51 |
# if BG_IMAGE_FROM_FILE |
| 52 |
if (fimage.img) |
| 53 |
{ |
| 54 |
if ((fimage.flags & IM_IS_SIZE_SENSITIVE) |
| 55 |
|| fimage.img->w > szHint.width |
| 56 |
|| fimage.img->h > szHint.height) |
| 57 |
return true; |
| 58 |
} |
| 59 |
# endif |
| 60 |
|
| 61 |
return false; |
| 62 |
} |
| 63 |
|
| 64 |
bool |
| 65 |
rxvt_term::bg_window_position_sensitive () |
| 66 |
{ |
| 67 |
# if BG_IMAGE_FROM_ROOT |
| 68 |
if (root_img) |
| 69 |
return true; |
| 70 |
# endif |
| 71 |
|
| 72 |
# if BG_IMAGE_FROM_FILE |
| 73 |
if (fimage.img) |
| 74 |
{ |
| 75 |
if (fimage.flags & IM_ROOT_ALIGN) |
| 76 |
return true; |
| 77 |
} |
| 78 |
# endif |
| 79 |
|
| 80 |
return false; |
| 81 |
} |
| 82 |
|
| 83 |
# if BG_IMAGE_FROM_FILE |
| 84 |
static inline int |
| 85 |
make_align_position (int align, int window_size, int image_size) |
| 86 |
{ |
| 87 |
if (align >= 0 && align <= 100) |
| 88 |
return lerp (0, window_size - image_size, align); |
| 89 |
else if (align > 100) |
| 90 |
return lerp (window_size - image_size, window_size, align - 100); |
| 91 |
else |
| 92 |
return lerp (-image_size, 0, align + 100); |
| 93 |
} |
| 94 |
|
| 95 |
static void |
| 96 |
parse_style (const char *style, int &x, int &y, unsigned int &w, unsigned int &h, uint8_t &flags) |
| 97 |
{ |
| 98 |
if (!strcasecmp (style, "tiled")) |
| 99 |
{ |
| 100 |
flags = IM_TILE; |
| 101 |
w = h = noScale; |
| 102 |
x = y = 0; |
| 103 |
} |
| 104 |
else if (!strcasecmp (style, "aspect-stretched")) |
| 105 |
{ |
| 106 |
flags = IM_KEEP_ASPECT; |
| 107 |
w = h = windowScale; |
| 108 |
x = y = centerAlign; |
| 109 |
} |
| 110 |
else if (!strcasecmp (style, "stretched")) |
| 111 |
{ |
| 112 |
flags = 0; |
| 113 |
w = h = windowScale; |
| 114 |
x = y = centerAlign; |
| 115 |
} |
| 116 |
else if (!strcasecmp (style, "centered")) |
| 117 |
{ |
| 118 |
flags = 0; |
| 119 |
w = h = noScale; |
| 120 |
x = y = centerAlign; |
| 121 |
} |
| 122 |
else if (!strcasecmp (style, "root-tiled")) |
| 123 |
{ |
| 124 |
flags = IM_TILE|IM_ROOT_ALIGN; |
| 125 |
w = h = noScale; |
| 126 |
x = y = 0; |
| 127 |
} |
| 128 |
} |
| 129 |
|
| 130 |
bool |
| 131 |
rxvt_image::set_geometry (const char *geom, bool update) |
| 132 |
{ |
| 133 |
bool changed = false; |
| 134 |
int geom_flags = 0; |
| 135 |
int x = h_align; |
| 136 |
int y = v_align; |
| 137 |
unsigned int w = h_scale; |
| 138 |
unsigned int h = v_scale; |
| 139 |
uint8_t new_flags = 0; |
| 140 |
|
| 141 |
if (geom == NULL) |
| 142 |
return false; |
| 143 |
|
| 144 |
if (geom[0]) |
| 145 |
{ |
| 146 |
char **arr = rxvt_strsplit (':', geom); |
| 147 |
|
| 148 |
for (int i = 0; arr[i]; i++) |
| 149 |
{ |
| 150 |
if (!strncasecmp (arr[i], "style=", 6)) |
| 151 |
{ |
| 152 |
parse_style (arr[i] + 6, x, y, w, h, new_flags); |
| 153 |
geom_flags = WidthValue|HeightValue|XValue|YValue; |
| 154 |
} |
| 155 |
else if (!strcasecmp (arr[i], "op=tile")) |
| 156 |
new_flags |= IM_TILE; |
| 157 |
else if (!strcasecmp (arr[i], "op=keep-aspect")) |
| 158 |
new_flags |= IM_KEEP_ASPECT; |
| 159 |
else if (!strcasecmp (arr[i], "op=root-align")) |
| 160 |
new_flags |= IM_ROOT_ALIGN; |
| 161 |
|
| 162 |
// deprecated |
| 163 |
else if (!strcasecmp (arr[i], "tile")) |
| 164 |
{ |
| 165 |
new_flags |= IM_TILE; |
| 166 |
w = h = noScale; |
| 167 |
geom_flags |= WidthValue|HeightValue; |
| 168 |
} |
| 169 |
else if (!strcasecmp (arr[i], "propscale")) |
| 170 |
{ |
| 171 |
new_flags |= IM_KEEP_ASPECT; |
| 172 |
w = h = windowScale; |
| 173 |
geom_flags |= WidthValue|HeightValue; |
| 174 |
} |
| 175 |
else if (!strcasecmp (arr[i], "hscale")) |
| 176 |
{ |
| 177 |
new_flags |= IM_TILE; |
| 178 |
w = windowScale; |
| 179 |
h = noScale; |
| 180 |
geom_flags |= WidthValue|HeightValue; |
| 181 |
} |
| 182 |
else if (!strcasecmp (arr[i], "vscale")) |
| 183 |
{ |
| 184 |
new_flags |= IM_TILE; |
| 185 |
h = windowScale; |
| 186 |
w = noScale; |
| 187 |
geom_flags |= WidthValue|HeightValue; |
| 188 |
} |
| 189 |
else if (!strcasecmp (arr[i], "scale")) |
| 190 |
{ |
| 191 |
w = h = windowScale; |
| 192 |
geom_flags |= WidthValue|HeightValue; |
| 193 |
} |
| 194 |
else if (!strcasecmp (arr[i], "auto")) |
| 195 |
{ |
| 196 |
w = h = windowScale; |
| 197 |
x = y = centerAlign; |
| 198 |
geom_flags |= WidthValue|HeightValue|XValue|YValue; |
| 199 |
} |
| 200 |
else if (!strcasecmp (arr[i], "root")) |
| 201 |
{ |
| 202 |
new_flags |= IM_TILE|IM_ROOT_ALIGN; |
| 203 |
w = h = noScale; |
| 204 |
geom_flags |= WidthValue|HeightValue; |
| 205 |
} |
| 206 |
|
| 207 |
else |
| 208 |
geom_flags |= XParseGeometry (arr[i], &x, &y, &w, &h); |
| 209 |
} /* done parsing ops */ |
| 210 |
|
| 211 |
rxvt_free_strsplit (arr); |
| 212 |
} |
| 213 |
|
| 214 |
new_flags |= flags & ~IM_GEOMETRY_FLAGS; |
| 215 |
|
| 216 |
if (!update) |
| 217 |
{ |
| 218 |
if (!(geom_flags & XValue)) |
| 219 |
x = y = defaultAlign; |
| 220 |
else if (!(geom_flags & YValue)) |
| 221 |
y = x; |
| 222 |
|
| 223 |
if (!(geom_flags & (WidthValue|HeightValue))) |
| 224 |
w = h = defaultScale; |
| 225 |
else if (!(geom_flags & HeightValue)) |
| 226 |
h = w; |
| 227 |
else if (!(geom_flags & WidthValue)) |
| 228 |
w = h; |
| 229 |
} |
| 230 |
|
| 231 |
clamp_it (x, -100, 200); |
| 232 |
clamp_it (y, -100, 200); |
| 233 |
|
| 234 |
if (flags != new_flags |
| 235 |
|| h_scale != w |
| 236 |
|| v_scale != h |
| 237 |
|| h_align != x |
| 238 |
|| v_align != y) |
| 239 |
{ |
| 240 |
flags = new_flags; |
| 241 |
h_scale = w; |
| 242 |
v_scale = h; |
| 243 |
h_align = x; |
| 244 |
v_align = y; |
| 245 |
changed = true; |
| 246 |
} |
| 247 |
|
| 248 |
if (is_size_sensitive ()) |
| 249 |
flags |= IM_IS_SIZE_SENSITIVE; |
| 250 |
else |
| 251 |
flags &= ~IM_IS_SIZE_SENSITIVE; |
| 252 |
|
| 253 |
return changed; |
| 254 |
} |
| 255 |
|
| 256 |
void |
| 257 |
rxvt_term::render_image (rxvt_image &image) |
| 258 |
{ |
| 259 |
int image_width = image.img->w; |
| 260 |
int image_height = image.img->h; |
| 261 |
int parent_width = szHint.width; |
| 262 |
int parent_height = szHint.height; |
| 263 |
int h_scale = min (image.h_scale, 32767 * 100 / parent_width); |
| 264 |
int v_scale = min (image.v_scale, 32767 * 100 / parent_height); |
| 265 |
|
| 266 |
int w; |
| 267 |
int h; |
| 268 |
int x; |
| 269 |
int y; |
| 270 |
|
| 271 |
w = h_scale * parent_width / 100; |
| 272 |
h = v_scale * parent_height / 100; |
| 273 |
|
| 274 |
if (image.flags & IM_KEEP_ASPECT) |
| 275 |
{ |
| 276 |
float scale = (float)w / image_width; |
| 277 |
min_it (scale, (float)h / image_height); |
| 278 |
w = image_width * scale + 0.5; |
| 279 |
h = image_height * scale + 0.5; |
| 280 |
} |
| 281 |
|
| 282 |
if (!w) w = image_width; |
| 283 |
if (!h) h = image_height; |
| 284 |
|
| 285 |
if (image.flags & IM_ROOT_ALIGN) |
| 286 |
{ |
| 287 |
x = -parent_x; |
| 288 |
y = -parent_y; |
| 289 |
} |
| 290 |
else |
| 291 |
{ |
| 292 |
x = make_align_position (image.h_align, parent_width, w); |
| 293 |
y = make_align_position (image.v_align, parent_height, h); |
| 294 |
} |
| 295 |
|
| 296 |
if (!(image.flags & IM_ROOT_ALIGN) |
| 297 |
&& (x >= parent_width |
| 298 |
|| y >= parent_height |
| 299 |
|| x + w <= 0 |
| 300 |
|| y + h <= 0)) |
| 301 |
return; |
| 302 |
|
| 303 |
rxvt_img *img = image.img->scale (w, h); |
| 304 |
|
| 305 |
if (image.flags & IM_TILE) |
| 306 |
img->repeat_mode (RepeatNormal); |
| 307 |
else |
| 308 |
img->repeat_mode (RepeatNone); |
| 309 |
img->sub_rect (-x, -y, parent_width, parent_height)->replace (img); |
| 310 |
|
| 311 |
if (bg_img) |
| 312 |
img->draw (bg_img, PictOpOver, image.alpha * 1. / 0xffff); |
| 313 |
|
| 314 |
XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual); |
| 315 |
img->convert_format (format, pix_colors [Color_bg])->replace (img); |
| 316 |
|
| 317 |
delete bg_img; |
| 318 |
bg_img = img; |
| 319 |
} |
| 320 |
|
| 321 |
rxvt_image::rxvt_image () |
| 322 |
{ |
| 323 |
alpha = 0xffff; |
| 324 |
flags = 0; |
| 325 |
h_scale = |
| 326 |
v_scale = defaultScale; |
| 327 |
h_align = |
| 328 |
v_align = defaultAlign; |
| 329 |
|
| 330 |
img = 0; |
| 331 |
} |
| 332 |
|
| 333 |
void |
| 334 |
rxvt_image::set_file_geometry (rxvt_screen *s, const char *file) |
| 335 |
{ |
| 336 |
if (!file || !*file) |
| 337 |
return; |
| 338 |
|
| 339 |
const char *p = strchr (file, ';'); |
| 340 |
|
| 341 |
if (p) |
| 342 |
{ |
| 343 |
size_t len = p - file; |
| 344 |
char *f = rxvt_temp_buf<char> (len + 1); |
| 345 |
memcpy (f, file, len); |
| 346 |
f[len] = '\0'; |
| 347 |
file = f; |
| 348 |
} |
| 349 |
|
| 350 |
set_file (s, file); |
| 351 |
alpha = 0x8000; |
| 352 |
set_geometry (p ? p + 1 : ""); |
| 353 |
} |
| 354 |
|
| 355 |
void |
| 356 |
rxvt_image::set_file (rxvt_screen *s, const char *file) |
| 357 |
{ |
| 358 |
rxvt_img *img2 = rxvt_img::new_from_file (s, file); |
| 359 |
delete img; |
| 360 |
img = img2; |
| 361 |
} |
| 362 |
|
| 363 |
# endif /* BG_IMAGE_FROM_FILE */ |
| 364 |
|
| 365 |
bool |
| 366 |
image_effects::set_blur (const char *geom) |
| 367 |
{ |
| 368 |
bool changed = false; |
| 369 |
unsigned int hr, vr; |
| 370 |
int junk; |
| 371 |
int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr); |
| 372 |
|
| 373 |
if (!(geom_flags & WidthValue)) |
| 374 |
hr = 1; |
| 375 |
if (!(geom_flags & HeightValue)) |
| 376 |
vr = hr; |
| 377 |
|
| 378 |
min_it (hr, 128); |
| 379 |
min_it (vr, 128); |
| 380 |
|
| 381 |
if (h_blurRadius != hr) |
| 382 |
{ |
| 383 |
changed = true; |
| 384 |
h_blurRadius = hr; |
| 385 |
} |
| 386 |
|
| 387 |
if (v_blurRadius != vr) |
| 388 |
{ |
| 389 |
changed = true; |
| 390 |
v_blurRadius = vr; |
| 391 |
} |
| 392 |
|
| 393 |
return changed; |
| 394 |
} |
| 395 |
|
| 396 |
bool |
| 397 |
image_effects::set_tint (const rxvt_color &new_tint) |
| 398 |
{ |
| 399 |
if (!tint_set || tint != new_tint) |
| 400 |
{ |
| 401 |
tint = new_tint; |
| 402 |
tint_set = true; |
| 403 |
|
| 404 |
return true; |
| 405 |
} |
| 406 |
|
| 407 |
return false; |
| 408 |
} |
| 409 |
|
| 410 |
bool |
| 411 |
image_effects::set_shade (const char *shade_str) |
| 412 |
{ |
| 413 |
int new_shade = atoi (shade_str); |
| 414 |
|
| 415 |
clamp_it (new_shade, -100, 200); |
| 416 |
if (new_shade < 0) |
| 417 |
new_shade = 200 - (100 + new_shade); |
| 418 |
|
| 419 |
if (new_shade != shade) |
| 420 |
{ |
| 421 |
shade = new_shade; |
| 422 |
return true; |
| 423 |
} |
| 424 |
|
| 425 |
return false; |
| 426 |
} |
| 427 |
|
| 428 |
# if BG_IMAGE_FROM_ROOT |
| 429 |
/* |
| 430 |
* Builds a pixmap of the same size as the terminal window that contains |
| 431 |
* the tiled portion of the root pixmap that is supposed to be covered by |
| 432 |
* our window. |
| 433 |
*/ |
| 434 |
void |
| 435 |
rxvt_term::render_root_image () |
| 436 |
{ |
| 437 |
/* root dimensions may change from call to call - but Display structure should |
| 438 |
* be always up-to-date, so let's use it : |
| 439 |
*/ |
| 440 |
int screen = display->screen; |
| 441 |
int root_width = DisplayWidth (dpy, screen); |
| 442 |
int root_height = DisplayHeight (dpy, screen); |
| 443 |
int parent_width = szHint.width; |
| 444 |
int parent_height = szHint.height; |
| 445 |
int sx, sy; |
| 446 |
|
| 447 |
sx = parent_x; |
| 448 |
sy = parent_y; |
| 449 |
|
| 450 |
/* check if we are outside of the visible part of the virtual screen : */ |
| 451 |
if (sx + parent_width <= 0 || sy + parent_height <= 0 |
| 452 |
|| sx >= root_width || sy >= root_height) |
| 453 |
return; |
| 454 |
|
| 455 |
while (sx < 0) sx += root_img->w; |
| 456 |
while (sy < 0) sy += root_img->h; |
| 457 |
|
| 458 |
rxvt_img *img = root_img->sub_rect (sx, sy, parent_width, parent_height); |
| 459 |
|
| 460 |
if (root_effects.need_blur ()) |
| 461 |
img->blur (root_effects.h_blurRadius, root_effects.v_blurRadius)->replace (img); |
| 462 |
|
| 463 |
if (root_effects.need_tint ()) |
| 464 |
{ |
| 465 |
rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC); |
| 466 |
|
| 467 |
if (root_effects.tint_set) |
| 468 |
root_effects.tint.get (c); |
| 469 |
rxvt_img::nv factor = root_effects.shade / 100. - 1.; |
| 470 |
img->shade (factor, c)->replace (img); |
| 471 |
} |
| 472 |
|
| 473 |
XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual); |
| 474 |
img->convert_format (format, pix_colors [Color_bg])->replace (img); |
| 475 |
|
| 476 |
delete bg_img; |
| 477 |
bg_img = img; |
| 478 |
} |
| 479 |
# endif /* BG_IMAGE_FROM_ROOT */ |
| 480 |
|
| 481 |
void |
| 482 |
rxvt_term::bg_render () |
| 483 |
{ |
| 484 |
if (bg_flags & BG_INHIBIT_RENDER) |
| 485 |
return; |
| 486 |
|
| 487 |
delete bg_img; |
| 488 |
bg_img = 0; |
| 489 |
bg_flags = 0; |
| 490 |
|
| 491 |
if (!mapped) |
| 492 |
return; |
| 493 |
|
| 494 |
# if BG_IMAGE_FROM_ROOT |
| 495 |
if (root_img) |
| 496 |
{ |
| 497 |
render_root_image (); |
| 498 |
bg_flags |= BG_IS_TRANSPARENT; |
| 499 |
} |
| 500 |
# endif |
| 501 |
|
| 502 |
# if BG_IMAGE_FROM_FILE |
| 503 |
if (fimage.img) |
| 504 |
render_image (fimage); |
| 505 |
# endif |
| 506 |
|
| 507 |
scr_recolor (false); |
| 508 |
bg_flags |= BG_NEEDS_REFRESH; |
| 509 |
|
| 510 |
bg_valid_since = ev::now (); |
| 511 |
} |
| 512 |
|
| 513 |
void |
| 514 |
rxvt_term::bg_init () |
| 515 |
{ |
| 516 |
#if BG_IMAGE_FROM_ROOT |
| 517 |
if (option (Opt_transparent)) |
| 518 |
{ |
| 519 |
if (rs [Rs_blurradius]) |
| 520 |
root_effects.set_blur (rs [Rs_blurradius]); |
| 521 |
|
| 522 |
if (ISSET_PIXCOLOR (Color_tint)) |
| 523 |
root_effects.set_tint (pix_colors_focused [Color_tint]); |
| 524 |
|
| 525 |
if (rs [Rs_shade]) |
| 526 |
root_effects.set_shade (rs [Rs_shade]); |
| 527 |
|
| 528 |
rxvt_img::new_from_root (this)->replace (root_img); |
| 529 |
XSelectInput (dpy, display->root, PropertyChangeMask); |
| 530 |
rootwin_ev.start (display, display->root); |
| 531 |
} |
| 532 |
#endif |
| 533 |
|
| 534 |
#if BG_IMAGE_FROM_FILE |
| 535 |
if (rs[Rs_backgroundPixmap]) |
| 536 |
{ |
| 537 |
fimage.set_file_geometry (this, rs[Rs_backgroundPixmap]); |
| 538 |
if (!bg_window_position_sensitive ()) |
| 539 |
update_background (); |
| 540 |
} |
| 541 |
#endif |
| 542 |
} |
| 543 |
|
| 544 |
#endif /* HAVE_BG_PIXMAP */ |
