1 /* 2 * vim:ts=4:sw=4:expandtab 3 * 4 * © 2010 Michael Stapelberg 5 * © 2015 Cassandra Fox 6 * © 2021 Raymond Li 7 * 8 * See LICENSE for licensing information 9 * 10 */ 11 #include <stdbool.h> 12 #include <stdlib.h> 13 #include <stdio.h> 14 #include <string.h> 15 #include <math.h> 16 #include <xcb/xcb.h> 17 #include <xcb/randr.h> 18 #include <ev.h> 19 #include <cairo.h> 20 #include <cairo/cairo-xcb.h> 21 22 #include "i3lock.h" 23 #include "xcb.h" 24 #include "unlock_indicator.h" 25 #include "randr.h" 26 #include "dpi.h" 27 #include "tinyexpr.h" 28 #include "fonts.h" 29 30 /* clock stuff */ 31 #include <time.h> 32 33 extern double circle_radius; 34 extern double ring_width; 35 36 #define BUTTON_RADIUS (circle_radius) 37 #define RING_WIDTH (ring_width) 38 #define BUTTON_SPACE (BUTTON_RADIUS + (RING_WIDTH / 2)) 39 #define BUTTON_DIAMETER (2 * BUTTON_SPACE) 40 41 /******************************************************************************* 42 * Variables defined in i3lock.c. 43 ******************************************************************************/ 44 45 extern bool debug_mode; 46 47 /* The current position in the input buffer. Useful to determine if any 48 * characters of the password have already been entered or not. */ 49 extern int input_position; 50 51 /* The lock window. */ 52 extern xcb_window_t win; 53 54 /* The current resolution of the X11 root window. */ 55 extern uint32_t last_resolution[2]; 56 57 /* Whether the unlock indicator is enabled (defaults to true). */ 58 extern bool unlock_indicator; 59 60 /* List of pressed modifiers, or NULL if none are pressed. */ 61 extern char *modifier_string; 62 63 /* A Cairo surface containing the specified image (-i), if any. */ 64 extern cairo_surface_t *img; 65 extern char *image_path; 66 extern char *slideshow_path; 67 extern char *img_slideshow[256]; 68 extern cairo_surface_t *blur_bg_img; 69 extern int slideshow_image_count; 70 extern int slideshow_interval; 71 extern bool slideshow_random_selection; 72 int slideshow_image_now = 0; 73 74 unsigned long lastCheck; 75 76 /* How the background image should be displayed */ 77 extern background_type_t bg_type; 78 /* The background color to use (in hex). */ 79 extern char color[9]; 80 /* indicator color options */ 81 extern char insidevercolor[9]; 82 extern char insidewrongcolor[9]; 83 extern char insidecolor[9]; 84 extern char ringvercolor[9]; 85 extern char ringwrongcolor[9]; 86 extern char ringcolor[9]; 87 extern char linecolor[9]; 88 extern char verifcolor[9]; 89 extern char wrongcolor[9]; 90 extern char layoutcolor[9]; 91 extern char timecolor[9]; 92 extern char datecolor[9]; 93 extern char modifcolor[9]; 94 extern char keyhlcolor[9]; 95 extern char bshlcolor[9]; 96 extern char separatorcolor[9]; 97 extern char greetercolor[9]; 98 extern int internal_line_source; 99 100 extern char verifoutlinecolor[9]; 101 extern char wrongoutlinecolor[9]; 102 extern char layoutoutlinecolor[9]; 103 extern char timeoutlinecolor[9]; 104 extern char dateoutlinecolor[9]; 105 extern char greeteroutlinecolor[9]; 106 extern char modifoutlinecolor[9]; 107 108 extern int screen_number; 109 extern float refresh_rate; 110 111 extern bool show_clock; 112 extern bool always_show_clock; 113 extern bool show_indicator; 114 extern int verif_align; 115 extern int wrong_align; 116 extern int time_align; 117 extern int date_align; 118 extern int layout_align; 119 extern int modif_align; 120 extern int greeter_align; 121 extern char time_format[32]; 122 extern char date_format[32]; 123 extern char *fonts[6]; 124 extern char ind_x_expr[32]; 125 extern char ind_y_expr[32]; 126 extern char time_x_expr[32]; 127 extern char time_y_expr[32]; 128 extern char date_x_expr[32]; 129 extern char date_y_expr[32]; 130 extern char layout_x_expr[32]; 131 extern char layout_y_expr[32]; 132 extern char status_x_expr[32]; 133 extern char status_y_expr[32]; 134 extern char verif_x_expr[32]; 135 extern char verif_y_expr[32]; 136 extern char wrong_x_expr[32]; 137 extern char wrong_y_expr[32]; 138 extern char modif_x_expr[32]; 139 extern char modif_y_expr[32]; 140 extern char greeter_x_expr[32]; 141 extern char greeter_y_expr[32]; 142 143 extern double time_size; 144 extern double date_size; 145 extern double verif_size; 146 extern double wrong_size; 147 extern double modifier_size; 148 extern double layout_size; 149 extern double greeter_size; 150 151 extern double timeoutlinewidth; 152 extern double dateoutlinewidth; 153 extern double verifoutlinewidth; 154 extern double wrongoutlinewidth; 155 extern double modifieroutlinewidth; 156 extern double layoutoutlinewidth; 157 extern double greeteroutlinewidth; 158 159 extern char *verif_text; 160 extern char *wrong_text; 161 extern char *noinput_text; 162 extern char *lock_text; 163 extern char *lock_failed_text; 164 extern char *layout_text; 165 extern char *greeter_text; 166 167 bool load_slideshow_images(const char *path); 168 cairo_surface_t* load_image(char* image_path); 169 170 /* Whether the failed attempts should be displayed. */ 171 extern bool show_failed_attempts; 172 /* Number of failed unlock attempts. */ 173 extern int failed_attempts; 174 175 /******************************************************************************* 176 * Variables defined in xcb.c. 177 ******************************************************************************/ 178 179 /* The root screen, to determine the DPI. */ 180 extern xcb_screen_t *screen; 181 182 /******************************************************************************* 183 * Local variables. 184 ******************************************************************************/ 185 186 /* time stuff */ 187 static struct ev_periodic *time_redraw_tick; 188 189 /* Cache the screen’s visual, necessary for creating a Cairo context. */ 190 static xcb_visualtype_t *vistype; 191 192 int current_slideshow_index = 0; 193 194 /* Maintain the current unlock/PAM state to draw the appropriate unlock 195 * indicator. */ 196 unlock_state_t unlock_state; 197 auth_state_t auth_state; 198 199 // color arrays 200 rgba_t insidever16; 201 rgba_t insidewrong16; 202 rgba_t inside16; 203 rgba_t ringver16; 204 rgba_t ringwrong16; 205 rgba_t ring16; 206 rgba_t line16; 207 rgba_t verif16; 208 rgba_t wrong16; 209 rgba_t layout16; 210 rgba_t time16; 211 rgba_t date16; 212 rgba_t modif16; 213 rgba_t keyhl16; 214 rgba_t bshl16; 215 rgba_t sep16; 216 rgba_t bar16; 217 rgba_t greeter16; 218 rgba_t background; 219 220 rgba_t verifoutline16; 221 rgba_t wrongoutline16; 222 rgba_t layoutoutline16; 223 rgba_t timeoutline16; 224 rgba_t dateoutline16; 225 rgba_t greeteroutline16; 226 rgba_t modifoutline16; 227 228 // experimental bar stuff 229 230 #define BAR_VERT 0 231 #define BAR_FLAT 1 232 // experimental bar stuff 233 extern bool bar_enabled; 234 extern double *bar_heights; 235 extern double bar_step; 236 extern double bar_base_height; 237 extern double bar_periodic_step; 238 extern double max_bar_height; 239 extern double bar_position; 240 extern int bar_count; 241 extern int bar_orientation; 242 243 extern char bar_base_color[9]; 244 extern char bar_x_expr[32]; 245 extern char bar_y_expr[32]; 246 extern char bar_width_expr[32]; 247 extern bool bar_bidirectional; 248 extern bool bar_reversed; 249 250 static cairo_font_face_t *font_faces[6] = { 251 NULL, 252 NULL, 253 NULL, 254 NULL, 255 NULL, 256 NULL, 257 }; 258 259 static control_char_config_t control_characters[] = { 260 {'\n', CC_POS_RESET, 0, CC_POS_CHANGE, 1}, 261 {'\b', CC_POS_CHANGE, -1, CC_POS_KEEP, 0}, 262 {'\r', CC_POS_RESET, 0, CC_POS_KEEP, 0}, 263 {'\t', CC_POS_TAB, 4, CC_POS_KEEP, 0}, 264 }; 265 size_t control_char_count = sizeof control_characters / sizeof(control_char_config_t); 266 267 static cairo_font_face_t *get_font_face(int which) { 268 if (font_faces[which]) { 269 return font_faces[which]; 270 } 271 const unsigned char *face_name = (const unsigned char *)fonts[which]; 272 FcResult result; 273 /* 274 * Loads the default config. 275 * On successive calls, does no work and just returns true. 276 */ 277 if (!FcInit()) { 278 DEBUG("Fontconfig init failed. No text will be shown.\n"); 279 return NULL; 280 } 281 282 /* 283 * converts a font face name to a pattern for that face name 284 */ 285 FcPattern *pattern = FcNameParse(face_name); 286 if (!pattern) { 287 DEBUG("no sans-serif font available\n"); 288 return NULL; 289 } 290 291 /* 292 * Gets the default font for our pattern. (Gets the default sans-serif font face) 293 * Without these two calls, the FcFontMatch call will fail due to FcConfigGetCurrent() 294 * not giving it a valid/useful config. 295 */ 296 FcDefaultSubstitute(pattern); 297 if (!FcConfigSubstitute(FcConfigGetCurrent(), pattern, FcMatchPattern)) { 298 DEBUG("config sub failed?\n"); 299 return NULL; 300 } 301 302 /* 303 * Looks up the font pattern and does some internal RenderPrepare work, 304 * then returns the resulting pattern that's ready for rendering. 305 */ 306 FcPattern *pattern_ready = FcFontMatch(FcConfigGetCurrent(), pattern, &result); 307 FcPatternDestroy(pattern); 308 pattern = NULL; 309 if (!pattern_ready) { 310 DEBUG("no sans-serif font available\n"); 311 return NULL; 312 } 313 314 /* 315 * Passes the given pattern into cairo, which loads it into a cairo freetype font face. 316 * Increment its reference count and cache it. 317 */ 318 cairo_font_face_t *face = cairo_ft_font_face_create_for_pattern(pattern_ready); 319 FcPatternDestroy(pattern_ready); 320 font_faces[which] = cairo_font_face_reference(face); 321 FcFini(); 322 return face; 323 } 324 325 /* 326 * Splits the given text by "control chars", 327 * And then draws the given text onto the cairo context. 328 */ 329 static void draw_text_with_cc(cairo_t *ctx, text_t text, double start_x) { 330 // get scaled_font 331 cairo_scaled_font_t *sft; 332 cairo_matrix_t fm, ctm; 333 cairo_matrix_init_scale(&fm, text.size, text.size); 334 cairo_get_matrix(ctx, &ctm); 335 cairo_font_options_t *opts; 336 opts = cairo_font_options_create(); 337 sft = cairo_scaled_font_create(text.font, &fm, &ctm, opts); 338 cairo_font_options_destroy(opts); 339 /* use `a` to represent common character width, using in `\t` */ 340 cairo_text_extents_t te; 341 cairo_text_extents(ctx, "a", &te); 342 343 // convert text to glyphs. 344 cairo_status_t status; 345 cairo_glyph_t* glyphs; 346 int nglyphs = 0, 347 len = 0, 348 start = 0, 349 lineno = 0, 350 x = start_x, 351 y = text.y; 352 size_t cur_cc; 353 354 while (text.str[start + len] != '\0') { 355 char is_cc = 0; 356 do { 357 for (cur_cc = 0; cur_cc < control_char_count; cur_cc++) { 358 if (text.str[start+len] == control_characters[cur_cc].character) { 359 is_cc = 1; 360 break; 361 } 362 } 363 } while (text.str[start+(len++)] != '\0' && !is_cc); 364 if (len > is_cc) { 365 status = cairo_scaled_font_text_to_glyphs( 366 sft, x, y, text.str + start, is_cc ? len - 1: len, 367 &glyphs, &nglyphs, 368 NULL, NULL, NULL 369 ); 370 if (status == CAIRO_STATUS_SUCCESS) { 371 cairo_glyph_path(ctx, glyphs, nglyphs); 372 } else { 373 DEBUG("draw %c failed\n", text.str[start]); 374 } 375 } 376 if (is_cc && (cur_cc < control_char_count)) { 377 if (control_characters[cur_cc].x_behavior == CC_POS_CHANGE) { 378 char x_offset = control_characters[cur_cc].x_behavior_arg; 379 if (x_offset < 0 && x_offset > -nglyphs) { 380 x = glyphs[nglyphs+x_offset].x; 381 } else if (x_offset > 0) { 382 if (nglyphs >= 1) { // the case is some leading control chars.(although there is none now) 383 x = glyphs[nglyphs - 1].x + x_offset * te.x_advance; 384 } else { // deal the leading control chars. 385 x += x_offset * te.x_advance; 386 } 387 } 388 } else if (control_characters[cur_cc].x_behavior == CC_POS_RESET) { 389 x = start_x; 390 } else if (control_characters[cur_cc].x_behavior == CC_POS_TAB) { 391 if (nglyphs > 0) { // there may be leading tab, such as '\t\t' or '\n\t' 392 int advance = control_characters[cur_cc].x_behavior_arg - ((nglyphs - 1) % control_characters[cur_cc].x_behavior_arg); 393 x = glyphs[nglyphs - 1].x + advance * te.x_advance; 394 } else { // deal the leading tab. 395 x += control_characters[cur_cc].x_behavior_arg * te.x_advance; 396 } 397 } 398 if (control_characters[cur_cc].y_behavior == CC_POS_CHANGE) { 399 lineno += control_characters[cur_cc].y_behavior_arg; 400 } // CC_POS_KEEP is default for y 401 } 402 y = text.y + text.size * lineno; 403 if (len > is_cc) { 404 cairo_glyph_free(glyphs); 405 } 406 nglyphs = 0; 407 start += len; 408 len = 0; 409 } 410 cairo_scaled_font_destroy(sft); 411 } 412 413 /* 414 * Draws the given text onto the cairo context 415 */ 416 static void draw_text(cairo_t *ctx, text_t text) { 417 if (!text.show) 418 return; 419 cairo_text_extents_t extents; 420 cairo_set_font_face(ctx, text.font); 421 cairo_set_font_size(ctx, text.size); 422 423 cairo_text_extents(ctx, text.str, &extents); 424 425 double x; 426 427 switch (text.align) { 428 case 1: 429 x = text.x; 430 break; 431 case 2: 432 x = text.x - (extents.width + extents.x_bearing); 433 break; 434 case 0: 435 default: 436 x = text.x - extents.x_advance / 2; 437 break; 438 } 439 440 cairo_set_source_rgba(ctx, text.color.red, text.color.green, text.color.blue, text.color.alpha); 441 442 draw_text_with_cc(ctx, text, x); 443 cairo_fill_preserve(ctx); 444 445 cairo_set_source_rgba(ctx, text.outline_color.red, text.outline_color.green, text.outline_color.blue, text.outline_color.alpha); 446 cairo_set_line_width(ctx, text.outline_width); 447 cairo_stroke(ctx); 448 } 449 450 static void draw_single_bar(cairo_t *ctx, double pos, double offset, double width, double height) { 451 if (bar_reversed) { 452 offset -= height; 453 } else if (bar_bidirectional) { 454 offset -= height / 2; 455 } 456 457 if (bar_orientation == BAR_VERT) 458 cairo_rectangle(ctx, offset, pos, height, width); 459 else 460 cairo_rectangle(ctx, pos, offset, width, height); 461 cairo_fill(ctx); 462 } 463 464 static void draw_bar(cairo_t *ctx, double bar_x, double bar_y, double bar_width, double screen_x, double screen_y) { 465 466 cairo_save(ctx); 467 468 switch (auth_state) { 469 case STATE_AUTH_VERIFY: 470 case STATE_AUTH_LOCK: 471 cairo_set_source_rgba(ctx, ringver16.red, ringver16.green, ringver16.blue, ringver16.alpha); 472 break; 473 case STATE_AUTH_WRONG: 474 case STATE_I3LOCK_LOCK_FAILED: 475 cairo_set_source_rgba(ctx, ringwrong16.red, ringwrong16.green, ringwrong16.blue, ringwrong16.alpha); 476 break; 477 default: 478 cairo_set_source_rgba(ctx, bar16.red, bar16.green, bar16.blue, bar16.alpha); 479 break; 480 } 481 482 if (bar_orientation == BAR_VERT) 483 draw_single_bar(ctx, bar_y, bar_x, bar_width, bar_base_height); 484 else 485 draw_single_bar(ctx, bar_x, bar_y, bar_width, bar_base_height); 486 487 if (unlock_state == STATE_BACKSPACE_ACTIVE) 488 cairo_set_source_rgba(ctx, bshl16.red, bshl16.green, bshl16.blue, bshl16.alpha); 489 else 490 cairo_set_source_rgba(ctx, keyhl16.red, keyhl16.green, keyhl16.blue, keyhl16.alpha); 491 492 cairo_set_operator(ctx, CAIRO_OPERATOR_SOURCE); 493 494 double base_width = bar_width / bar_count; 495 double bar_pos, bar_offset; 496 if (bar_orientation == BAR_VERT) { 497 bar_pos = bar_y; 498 bar_offset = bar_x; 499 } else { 500 bar_pos = bar_x; 501 bar_offset = bar_y; 502 } 503 504 for (int i = 0; i < bar_count; ++i) { 505 double bar_height = bar_heights[i]; 506 if (bar_bidirectional) bar_height *= 2; 507 if (bar_height > 0) { 508 draw_single_bar(ctx, bar_pos + i * base_width, bar_offset, base_width, bar_height); 509 } 510 } 511 512 for (int i = 0; i < bar_count; ++i) { 513 if (bar_heights[i] > 0) { 514 bar_heights[i] -= bar_periodic_step; 515 } 516 } 517 518 cairo_restore(ctx); 519 } 520 521 static void draw_indic(cairo_t *ctx, double ind_x, double ind_y) { 522 if (unlock_indicator && 523 (unlock_state >= STATE_KEY_PRESSED || auth_state > STATE_AUTH_IDLE || show_indicator)) { 524 /* Draw a (centered) circle with transparent background. */ 525 cairo_set_line_width(ctx, RING_WIDTH); 526 cairo_arc(ctx, ind_x, ind_y, BUTTON_RADIUS, 0, 2 * M_PI); 527 528 /* Use the appropriate color for the different PAM states 529 * (currently verifying, wrong password, or default) */ 530 switch (auth_state) { 531 case STATE_AUTH_VERIFY: 532 case STATE_AUTH_LOCK: 533 cairo_set_source_rgba(ctx, insidever16.red, insidever16.green, insidever16.blue, insidever16.alpha); 534 break; 535 case STATE_AUTH_WRONG: 536 case STATE_I3LOCK_LOCK_FAILED: 537 cairo_set_source_rgba(ctx, insidewrong16.red, insidewrong16.green, insidewrong16.blue, insidewrong16.alpha); 538 break; 539 default: 540 if (unlock_state == STATE_NOTHING_TO_DELETE) { 541 cairo_set_source_rgba(ctx, insidewrong16.red, insidewrong16.green, insidewrong16.blue, insidewrong16.alpha); 542 break; 543 } 544 cairo_set_source_rgba(ctx, inside16.red, inside16.green, inside16.blue, inside16.alpha); 545 break; 546 } 547 cairo_fill_preserve(ctx); 548 549 switch (auth_state) { 550 case STATE_AUTH_VERIFY: 551 case STATE_AUTH_LOCK: 552 cairo_set_source_rgba(ctx, ringver16.red, ringver16.green, ringver16.blue, ringver16.alpha); 553 if (internal_line_source == 1) { 554 line16.red = ringver16.red; 555 line16.green = ringver16.green; 556 line16.blue = ringver16.blue; 557 line16.alpha = ringver16.alpha; 558 } 559 break; 560 case STATE_AUTH_WRONG: 561 case STATE_I3LOCK_LOCK_FAILED: 562 cairo_set_source_rgba(ctx, ringwrong16.red, ringwrong16.green, ringwrong16.blue, ringwrong16.alpha); 563 if (internal_line_source == 1) { 564 line16.red = ringwrong16.red; 565 line16.green = ringwrong16.green; 566 line16.blue = ringwrong16.blue; 567 line16.alpha = ringwrong16.alpha; 568 } 569 break; 570 case STATE_AUTH_IDLE: 571 if (unlock_state == STATE_NOTHING_TO_DELETE) { 572 cairo_set_source_rgba(ctx, ringwrong16.red, ringwrong16.green, ringwrong16.blue, ringwrong16.alpha); 573 if (internal_line_source == 1) { 574 line16.red = ringwrong16.red; 575 line16.green = ringwrong16.green; 576 line16.blue = ringwrong16.blue; 577 line16.alpha = ringwrong16.alpha; 578 } 579 break; 580 } 581 cairo_set_source_rgba(ctx, ring16.red, ring16.green, ring16.blue, ring16.alpha); 582 if (internal_line_source == 1) { 583 line16.red = ring16.red; 584 line16.green = ring16.green; 585 line16.blue = ring16.blue; 586 line16.alpha = ring16.alpha; 587 } 588 break; 589 } 590 cairo_stroke(ctx); 591 592 /* Draw an inner separator line. */ 593 if (internal_line_source != 2) { //pretty sure this only needs drawn if it's being drawn over the inside? 594 cairo_set_source_rgba(ctx, line16.red, line16.green, line16.blue, line16.alpha); 595 cairo_set_line_width(ctx, 2.0); 596 cairo_arc(ctx, ind_x, ind_y, BUTTON_RADIUS - 5, 0, 2 * M_PI); 597 cairo_stroke(ctx); 598 } 599 if (unlock_state == STATE_KEY_ACTIVE || unlock_state == STATE_BACKSPACE_ACTIVE) { 600 cairo_set_line_width(ctx, RING_WIDTH); 601 cairo_new_sub_path(ctx); 602 double highlight_start = (rand() % (int)(2 * M_PI * 100)) / 100.0; 603 cairo_arc(ctx, ind_x, ind_y, BUTTON_RADIUS, 604 highlight_start, highlight_start + (M_PI / 3.0)); 605 if (unlock_state == STATE_KEY_ACTIVE) { 606 /* For normal keys, we use a lighter green. */ 607 cairo_set_source_rgba(ctx, keyhl16.red, keyhl16.green, keyhl16.blue, keyhl16.alpha); 608 } else { 609 /* For backspace, we use red. */ 610 cairo_set_source_rgba(ctx, bshl16.red, bshl16.green, bshl16.blue, bshl16.alpha); 611 } 612 613 cairo_stroke(ctx); 614 615 /* Draw two little separators for the highlighted part of the 616 * unlock indicator. */ 617 cairo_set_source_rgba(ctx, sep16.red, sep16.green, sep16.blue, sep16.alpha); 618 cairo_arc(ctx, ind_x, ind_y, BUTTON_RADIUS, 619 highlight_start, highlight_start + (M_PI / 128.0)); 620 cairo_stroke(ctx); 621 cairo_arc(ctx, ind_x, ind_y, BUTTON_RADIUS, 622 (highlight_start + (M_PI / 3.0)) - (M_PI / 128.0), 623 highlight_start + (M_PI / 3.0)); 624 cairo_stroke(ctx); 625 } 626 } 627 } 628 629 /* 630 * Initialize all the color arrays once. 631 * Called once after options are parsed. 632 */ 633 634 /* 635 colorstring: 8-character RGBA string ("ff0000ff", "00000000", "ffffffff", etc) 636 colorstring16: array of 4 integers (r, g, b, a). 637 MAKE_COLORGROUPS(colorstring, colorstring16) => 638 639 char colorstring_tmparr[4][3] = {{colorstring[0], colorstring[1], '\0'}, 640 {colorstring[2], colorstring[3], '\0'}, 641 {colorstring[4], colorstring[5], '\0'}, 642 {colorstring[6], colorstring[7], '\0'}}; 643 uint32_t colorstring16[4] = {(strtol(colorstring_tmparr[0], NULL, 16)), 644 (strtol(colorstring_tmparr[1], NULL, 16)), 645 (strtol(colorstring_tmparr[2], NULL, 16)), 646 (strtol(colorstring_tmparr[3], NULL, 16))}; 647 */ 648 649 static void set_color(char *dest, const char *src, int offset) { 650 dest[0] = src[offset]; 651 dest[1] = src[offset + 1]; 652 dest[2] = '\0'; 653 } 654 655 static void colorgen(rgba_str_t *tmp, const char *src, rgba_t *dest) { 656 set_color(tmp->red, src, 0); 657 set_color(tmp->green, src, 2); 658 set_color(tmp->blue, src, 4); 659 set_color(tmp->alpha, src, 6); 660 661 dest->red = strtol(tmp->red, NULL, 16) / 255.0; 662 dest->green = strtol(tmp->green, NULL, 16) / 255.0; 663 dest->blue = strtol(tmp->blue, NULL, 16) / 255.0; 664 dest->alpha = strtol(tmp->alpha, NULL, 16) / 255.0; 665 } 666 667 void init_colors_once(void) { 668 669 /* initialize for slideshow time interval */ 670 lastCheck = (unsigned long)time(NULL); 671 672 rgba_str_t tmp; 673 674 /* build indicator color arrays */ 675 colorgen(&tmp, insidevercolor, &insidever16); 676 colorgen(&tmp, insidewrongcolor, &insidewrong16); 677 colorgen(&tmp, insidecolor, &inside16); 678 colorgen(&tmp, ringvercolor, &ringver16); 679 colorgen(&tmp, ringwrongcolor, &ringwrong16); 680 colorgen(&tmp, ringcolor, &ring16); 681 colorgen(&tmp, linecolor, &line16); 682 colorgen(&tmp, verifcolor, &verif16); 683 colorgen(&tmp, wrongcolor, &wrong16); 684 colorgen(&tmp, layoutcolor, &layout16); 685 colorgen(&tmp, timecolor, &time16); 686 colorgen(&tmp, datecolor, &date16); 687 colorgen(&tmp, modifcolor, &modif16); 688 colorgen(&tmp, keyhlcolor, &keyhl16); 689 colorgen(&tmp, bshlcolor, &bshl16); 690 colorgen(&tmp, separatorcolor, &sep16); 691 colorgen(&tmp, bar_base_color, &bar16); 692 colorgen(&tmp, greetercolor, &greeter16); 693 colorgen(&tmp, color, &background); 694 695 colorgen(&tmp, verifoutlinecolor, &verifoutline16); 696 colorgen(&tmp, wrongoutlinecolor, &wrongoutline16); 697 colorgen(&tmp, layoutoutlinecolor, &layoutoutline16); 698 colorgen(&tmp, timeoutlinecolor, &timeoutline16); 699 colorgen(&tmp, dateoutlinecolor, &dateoutline16); 700 colorgen(&tmp, greeteroutlinecolor, &greeteroutline16); 701 colorgen(&tmp, modifoutlinecolor, &modifoutline16); 702 } 703 704 static te_expr *compile_expression(const char *const from, const char *expression, const te_variable *variables, int var_count) { 705 int te_err = 0; 706 te_expr *expr = te_compile(expression, variables, var_count, &te_err); 707 if (te_err) { 708 fprintf(stderr, "Failed to reason about '%s' given by '%s'\n", expression, from); 709 exit(EXIT_FAILURE); 710 } 711 return expr; 712 } 713 714 static DrawData create_draw_data() { 715 DrawData draw_data; 716 memset(&draw_data, 0, sizeof(DrawData)); 717 718 return draw_data; 719 } 720 721 static void draw_elements(cairo_t *const ctx, DrawData const *const draw_data) { 722 // indicator stuff 723 if (!bar_enabled) { 724 draw_indic(ctx, draw_data->indicator_x, draw_data->indicator_y); 725 } else { 726 if (unlock_state == STATE_KEY_ACTIVE || 727 unlock_state == STATE_BACKSPACE_ACTIVE) { 728 // note: might be biased to cause more hits on lower indices 729 // maybe see about doing ((double) rand() / RAND_MAX) * bar_count 730 int index = rand() % bar_count; 731 bar_heights[index] = max_bar_height; 732 for (int i = 0; i < ((max_bar_height / bar_step) + 1); ++i) { 733 int low_ind = index - i; 734 while (low_ind < 0) { 735 low_ind += bar_count; 736 } 737 int high_ind = (index + i) % bar_count; 738 int tmp_height = max_bar_height - (bar_step * i); 739 if (tmp_height < 0) 740 tmp_height = 0; 741 if (bar_heights[low_ind] < tmp_height) 742 bar_heights[low_ind] = tmp_height; 743 if (bar_heights[high_ind] < tmp_height) 744 bar_heights[high_ind] = tmp_height; 745 if (tmp_height == 0) 746 break; 747 } 748 } 749 draw_bar(ctx, draw_data->bar_x, draw_data->bar_y, draw_data->bar_width, draw_data->screen_x, draw_data->screen_y); 750 } 751 752 draw_text(ctx, draw_data->status_text); 753 draw_text(ctx, draw_data->keylayout_text); 754 draw_text(ctx, draw_data->mod_text); 755 draw_text(ctx, draw_data->time_text); 756 draw_text(ctx, draw_data->date_text); 757 draw_text(ctx, draw_data->greeter_text); 758 } 759 760 /* 761 * Renders the lock screen on the provided drawable with the given resolution. 762 */ 763 void render_lock(uint32_t *resolution, xcb_drawable_t drawable) { 764 const double scaling_factor = get_dpi_value() / 96.0; 765 int button_diameter_physical = ceil(scaling_factor * BUTTON_DIAMETER); 766 DEBUG("scaling_factor is %.f, physical diameter is %d px\n", 767 scaling_factor, button_diameter_physical); 768 769 if (!vistype) 770 vistype = get_visualtype_by_depth(32, screen); 771 /* Initialize cairo: Create one in-memory surface to render the unlock 772 * indicator on, create one XCB surface to actually draw (one or more, 773 * depending on the amount of screens) unlock indicators on. 774 * create two more surfaces for time and date display 775 */ 776 cairo_surface_t *output = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, resolution[0], resolution[1]); 777 cairo_t *ctx = cairo_create(output); 778 cairo_scale(ctx, scaling_factor, scaling_factor); 779 780 // cairo_set_font_face(ctx, get_font_face(0)); 781 782 cairo_surface_t *xcb_output = cairo_xcb_surface_create(conn, drawable, vistype, resolution[0], resolution[1]); 783 cairo_t *xcb_ctx = cairo_create(xcb_output); 784 785 /*update image according to the slideshow_interval*/ 786 if (slideshow_image_count > 0) { 787 unsigned long now = (unsigned long)time(NULL); 788 if (img == NULL || now - lastCheck >= slideshow_interval) { 789 if (slideshow_random_selection) { 790 img = load_image(img_slideshow[rand() % slideshow_image_count]); 791 } else { 792 img = load_image(img_slideshow[current_slideshow_index]); 793 } 794 current_slideshow_index++; 795 if (current_slideshow_index >= slideshow_image_count) { 796 current_slideshow_index = 0; 797 load_slideshow_images(slideshow_path); 798 } 799 lastCheck = now; 800 } 801 } 802 803 if (blur_bg_img) { 804 cairo_set_source_surface(xcb_ctx, blur_bg_img, 0, 0); 805 cairo_paint(xcb_ctx); 806 } else { 807 cairo_set_source_rgba(xcb_ctx, background.red, background.green, background.blue, background.alpha); 808 cairo_rectangle(xcb_ctx, 0, 0, resolution[0], resolution[1]); 809 cairo_fill(xcb_ctx); 810 } 811 812 if (img) { 813 draw_image(resolution, img, xcb_ctx); 814 } 815 816 /* 817 * gen text 818 * calc vars 819 * process if keystroke or not 820 * draw indicator 821 * draw text 822 */ 823 DrawData draw_data = create_draw_data(); 824 825 if (unlock_indicator && 826 (unlock_state >= STATE_KEY_PRESSED || auth_state > STATE_AUTH_IDLE || show_indicator)) { 827 switch (auth_state) { 828 case STATE_AUTH_VERIFY: 829 draw_data.status_text.show = true; 830 strncpy(draw_data.status_text.str, verif_text, sizeof(draw_data.status_text.str) - 1); 831 draw_data.status_text.font = get_font_face(VERIF_FONT); 832 draw_data.status_text.color = verif16; 833 draw_data.status_text.outline_color = verifoutline16; 834 draw_data.status_text.size = verif_size; 835 draw_data.status_text.outline_width = verifoutlinewidth; 836 draw_data.status_text.align = verif_align; 837 break; 838 case STATE_AUTH_LOCK: 839 draw_data.status_text.show = true; 840 strncpy(draw_data.status_text.str, lock_text, sizeof(draw_data.status_text.str) - 1); 841 draw_data.status_text.font = get_font_face(VERIF_FONT); 842 draw_data.status_text.color = verif16; 843 draw_data.status_text.outline_color = verifoutline16; 844 draw_data.status_text.size = verif_size; 845 draw_data.status_text.outline_width = verifoutlinewidth; 846 draw_data.status_text.align = verif_align; 847 break; 848 case STATE_AUTH_WRONG: 849 draw_data.status_text.show = true; 850 strncpy(draw_data.status_text.str, wrong_text, sizeof(draw_data.status_text.str) - 1); 851 draw_data.status_text.font = get_font_face(WRONG_FONT); 852 draw_data.status_text.color = wrong16; 853 draw_data.status_text.outline_color = wrongoutline16; 854 draw_data.status_text.size = wrong_size; 855 draw_data.status_text.outline_width = wrongoutlinewidth; 856 draw_data.status_text.align = wrong_align; 857 break; 858 case STATE_I3LOCK_LOCK_FAILED: 859 draw_data.status_text.show = true; 860 strncpy(draw_data.status_text.str, lock_failed_text, sizeof(draw_data.status_text.str) - 1); 861 draw_data.status_text.font = get_font_face(WRONG_FONT); 862 draw_data.status_text.color = wrong16; 863 draw_data.status_text.outline_color = wrongoutline16; 864 draw_data.status_text.size = wrong_size; 865 draw_data.status_text.outline_width = wrongoutlinewidth; 866 draw_data.status_text.align = wrong_align; 867 break; 868 default: 869 if (unlock_state == STATE_NOTHING_TO_DELETE) { 870 draw_data.status_text.show = true; 871 strncpy(draw_data.status_text.str, noinput_text, sizeof(draw_data.status_text.str) - 1); 872 draw_data.status_text.font = get_font_face(WRONG_FONT); 873 draw_data.status_text.color = wrong16; 874 draw_data.status_text.outline_color = wrongoutline16; 875 draw_data.status_text.size = wrong_size; 876 draw_data.status_text.outline_width = wrongoutlinewidth; 877 draw_data.status_text.align = wrong_align; 878 break; 879 } 880 if (show_failed_attempts && failed_attempts > 0) { 881 draw_data.status_text.show = true; 882 draw_data.status_text.font = get_font_face(WRONG_FONT); 883 draw_data.status_text.color = wrong16; 884 draw_data.status_text.outline_color = wrongoutline16; 885 draw_data.status_text.size = wrong_size; 886 draw_data.status_text.outline_width = wrongoutlinewidth; 887 draw_data.status_text.align = wrong_align; 888 // TODO: variable for this 889 draw_data.status_text.size = 32.0; 890 if (failed_attempts > 999) { 891 strncpy(draw_data.status_text.str, "> 999", sizeof(draw_data.status_text.str)); 892 } else { 893 snprintf(draw_data.status_text.str, sizeof(draw_data.status_text.str), "%d", failed_attempts); 894 } 895 } 896 break; 897 } 898 } 899 900 if (modifier_string) { 901 draw_data.mod_text.show = true; 902 strncpy(draw_data.mod_text.str, modifier_string, sizeof(draw_data.mod_text.str) - 1); 903 draw_data.mod_text.size = modifier_size; 904 draw_data.mod_text.outline_width = modifieroutlinewidth; 905 draw_data.mod_text.font = get_font_face(WRONG_FONT); 906 draw_data.mod_text.align = modif_align; 907 draw_data.mod_text.color = modif16; 908 draw_data.mod_text.outline_color = modifoutline16; 909 } 910 911 if (layout_text) { 912 draw_data.keylayout_text.show = true; 913 strncpy(draw_data.keylayout_text.str, layout_text, sizeof(draw_data.keylayout_text.str) - 1); 914 draw_data.keylayout_text.size = layout_size; 915 draw_data.keylayout_text.outline_width = layoutoutlinewidth; 916 draw_data.keylayout_text.font = get_font_face(LAYOUT_FONT); 917 draw_data.keylayout_text.color = layout16; 918 draw_data.keylayout_text.outline_color = layoutoutline16; 919 draw_data.keylayout_text.align = layout_align; 920 } 921 922 if (greeter_text) { 923 draw_data.greeter_text.show = true; 924 strncpy(draw_data.greeter_text.str, greeter_text, sizeof(draw_data.greeter_text.str) - 1); 925 draw_data.greeter_text.size = greeter_size; 926 draw_data.greeter_text.outline_width = greeteroutlinewidth; 927 draw_data.greeter_text.font = get_font_face(GREETER_FONT); 928 draw_data.greeter_text.color = greeter16; 929 draw_data.greeter_text.outline_color = greeteroutline16; 930 draw_data.greeter_text.align = greeter_align; 931 } 932 933 if (show_clock && (!draw_data.status_text.show || always_show_clock)) { 934 time_t rawtime; 935 struct tm *timeinfo; 936 time(&rawtime); 937 timeinfo = localtime(&rawtime); 938 939 strftime(draw_data.time_text.str, 40, time_format, timeinfo); 940 if (*draw_data.time_text.str) { 941 draw_data.time_text.show = true; 942 draw_data.time_text.size = time_size; 943 draw_data.time_text.outline_width = timeoutlinewidth; 944 draw_data.time_text.color = time16; 945 draw_data.time_text.outline_color = timeoutline16; 946 draw_data.time_text.font = get_font_face(TIME_FONT); 947 draw_data.time_text.align = time_align; 948 } 949 strftime(draw_data.date_text.str, 40, date_format, timeinfo); 950 if (*draw_data.date_text.str) { 951 draw_data.date_text.show = true; 952 draw_data.date_text.size = date_size; 953 draw_data.date_text.outline_width = dateoutlinewidth; 954 draw_data.date_text.color = date16; 955 draw_data.date_text.outline_color = dateoutline16; 956 draw_data.date_text.font = get_font_face(DATE_FONT); 957 draw_data.date_text.align = date_align; 958 } 959 960 if (*draw_data.greeter_text.str) { 961 draw_data.greeter_text.show = true; 962 draw_data.greeter_text.size = greeter_size; 963 draw_data.greeter_text.outline_width = greeteroutlinewidth; 964 draw_data.greeter_text.color = greeter16; 965 draw_data.greeter_text.outline_color = greeteroutline16; 966 draw_data.greeter_text.font = get_font_face(GREETER_FONT); 967 draw_data.greeter_text.align = greeter_align; 968 } 969 } 970 971 // initialize positioning vars 972 double screen_x = 0, screen_y = 0, 973 width = 0, height = 0; 974 975 double radius = (circle_radius + ring_width); 976 DEBUG("scaling_factor is %f, physical diameter is %d px\n", 977 scaling_factor, button_diameter_physical); 978 979 // variable mapping for evaluating the clock position expression 980 const unsigned int vars_size = 14; 981 te_variable vars[] = 982 {{"w", &width}, 983 {"h", &height}, 984 {"x", &screen_x}, 985 {"y", &screen_y}, 986 {"ix", &draw_data.indicator_x}, 987 {"iy", &draw_data.indicator_y}, 988 {"tx", &draw_data.time_text.x}, 989 {"ty", &draw_data.time_text.y}, 990 {"dx", &draw_data.date_text.x}, 991 {"dy", &draw_data.date_text.y}, 992 {"bw", &draw_data.bar_width}, 993 {"bx", &draw_data.bar_x}, 994 {"by", &draw_data.bar_y}, 995 {"r", &radius}}; 996 997 te_expr *te_ind_x_expr = compile_expression("--indpos", ind_x_expr, vars, vars_size); 998 te_expr *te_ind_y_expr = compile_expression("--indpos", ind_y_expr, vars, vars_size); 999 te_expr *te_time_x_expr = compile_expression("--timepos", time_x_expr, vars, vars_size); 1000 te_expr *te_time_y_expr = compile_expression("--timepos", time_y_expr, vars, vars_size); 1001 te_expr *te_date_x_expr = compile_expression("--datepos", date_x_expr, vars, vars_size); 1002 te_expr *te_date_y_expr = compile_expression("--datepos", date_y_expr, vars, vars_size); 1003 te_expr *te_layout_x_expr = compile_expression("--layoutpos", layout_x_expr, vars, vars_size); 1004 te_expr *te_layout_y_expr = compile_expression("--layoutpos", layout_y_expr, vars, vars_size); 1005 te_expr *te_status_x_expr = compile_expression("--statuspos", status_x_expr, vars, vars_size); 1006 te_expr *te_status_y_expr = compile_expression("--statuspos", status_y_expr, vars, vars_size); 1007 te_expr *te_verif_x_expr = compile_expression("--verifpos", verif_x_expr, vars, vars_size); 1008 te_expr *te_verif_y_expr = compile_expression("--verifpos", verif_y_expr, vars, vars_size); 1009 te_expr *te_wrong_x_expr = compile_expression("--wrongpos", wrong_x_expr, vars, vars_size); 1010 te_expr *te_wrong_y_expr = compile_expression("--wrongpos", wrong_y_expr, vars, vars_size); 1011 te_expr *te_modif_x_expr = compile_expression("--modifpos", modif_x_expr, vars, vars_size); 1012 te_expr *te_modif_y_expr = compile_expression("--modifpos", modif_y_expr, vars, vars_size); 1013 te_expr *te_bar_x_expr = compile_expression("--bar-position", bar_x_expr, vars, vars_size); 1014 te_expr *te_bar_y_expr = strlen(bar_y_expr) ? compile_expression("--bar-position", bar_y_expr, vars, vars_size) : NULL; 1015 te_expr *te_bar_width_expr = strlen(bar_width_expr) ? compile_expression("--bar-width", bar_width_expr, vars, vars_size) : NULL; 1016 1017 te_expr *te_greeter_x_expr = compile_expression("--greeterpos", greeter_x_expr, vars, vars_size); 1018 te_expr *te_greeter_y_expr = compile_expression("--greeterpos", greeter_y_expr, vars, vars_size); 1019 1020 if (xr_screens > 0) { 1021 if (screen_number < 0 || screen_number > xr_screens) { 1022 screen_number = 0; 1023 } 1024 1025 DEBUG("Drawing indicator on %d screens\n", screen_number); 1026 1027 int current_screen = screen_number == 0 ? 0 : screen_number - 1; 1028 const int end_screen = screen_number == 0 ? xr_screens : screen_number; 1029 for (; current_screen < end_screen; current_screen++) { 1030 draw_data.indicator_x = 0; 1031 draw_data.indicator_y = 0; 1032 draw_data.time_text.x = 0; 1033 draw_data.time_text.y = 0; 1034 draw_data.date_text.x = 0; 1035 draw_data.date_text.y = 0; 1036 draw_data.greeter_text.x = 0; 1037 draw_data.greeter_text.y = 0; 1038 1039 width = xr_resolutions[current_screen].width / scaling_factor; 1040 height = xr_resolutions[current_screen].height / scaling_factor; 1041 screen_x = xr_resolutions[current_screen].x / scaling_factor; 1042 screen_y = xr_resolutions[current_screen].y / scaling_factor; 1043 draw_data.screen_x = screen_x; 1044 draw_data.screen_y = screen_y; 1045 draw_data.indicator_x = te_eval(te_ind_x_expr); 1046 draw_data.indicator_y = te_eval(te_ind_y_expr); 1047 draw_data.time_text.x = te_eval(te_time_x_expr); 1048 draw_data.time_text.y = te_eval(te_time_y_expr); 1049 draw_data.date_text.x = te_eval(te_date_x_expr); 1050 draw_data.date_text.y = te_eval(te_date_y_expr); 1051 draw_data.keylayout_text.x = te_eval(te_layout_x_expr); 1052 draw_data.keylayout_text.y = te_eval(te_layout_y_expr); 1053 draw_data.greeter_text.x = te_eval(te_greeter_x_expr); 1054 draw_data.greeter_text.y = te_eval(te_greeter_y_expr); 1055 1056 switch (auth_state) { 1057 case STATE_AUTH_VERIFY: 1058 case STATE_AUTH_LOCK: 1059 draw_data.status_text.x = te_eval(te_verif_x_expr); 1060 draw_data.status_text.y = te_eval(te_verif_y_expr); 1061 break; 1062 case STATE_AUTH_WRONG: 1063 case STATE_I3LOCK_LOCK_FAILED: 1064 draw_data.status_text.x = te_eval(te_wrong_x_expr); 1065 draw_data.status_text.y = te_eval(te_wrong_y_expr); 1066 break; 1067 default: 1068 draw_data.status_text.x = te_eval(te_status_x_expr); 1069 draw_data.status_text.y = te_eval(te_status_y_expr); 1070 break; 1071 } 1072 1073 draw_data.mod_text.x = te_eval(te_modif_x_expr); 1074 draw_data.mod_text.y = te_eval(te_modif_y_expr); 1075 1076 if (te_bar_y_expr) { 1077 draw_data.bar_x = te_eval(te_bar_x_expr); 1078 draw_data.bar_y = te_eval(te_bar_y_expr); 1079 } else { 1080 double bar_offset = te_eval(te_bar_x_expr); 1081 if (bar_orientation == BAR_VERT) { 1082 draw_data.bar_x = bar_offset; 1083 draw_data.bar_y = screen_y; 1084 } else { 1085 draw_data.bar_x = screen_x; 1086 draw_data.bar_y = bar_offset; 1087 } 1088 } 1089 if (te_bar_width_expr) 1090 draw_data.bar_width = te_eval(te_bar_width_expr); 1091 else if (bar_orientation == BAR_VERT) 1092 draw_data.bar_width = height; 1093 else 1094 draw_data.bar_width = width; 1095 1096 1097 DEBUG("Indicator at %fx%f on screen %d\n", draw_data.indicator_x, draw_data.indicator_y, current_screen + 1); 1098 DEBUG("Bar at %fx%f with width %f on screen %d\n", draw_data.bar_x, draw_data.bar_y, draw_data.bar_width, current_screen + 1); 1099 DEBUG("Time at %fx%f on screen %d\n", draw_data.time_text.x, draw_data.time_text.y, current_screen + 1); 1100 DEBUG("Date at %fx%f on screen %d\n", draw_data.date_text.x, draw_data.date_text.y, current_screen + 1); 1101 DEBUG("Layout at %fx%f on screen %d\n", draw_data.keylayout_text.x, draw_data.keylayout_text.y, current_screen + 1); 1102 DEBUG("Status at %fx%f on screen %d\n", draw_data.status_text.x, draw_data.status_text.y, current_screen + 1); 1103 DEBUG("Mod at %fx%f on screen %d\n", draw_data.mod_text.x, draw_data.mod_text.y, current_screen + 1); 1104 // scale_draw_data(&draw_data, scaling_factor); 1105 draw_elements(ctx, &draw_data); 1106 } 1107 } else { 1108 /* We have no information about the screen sizes/positions, so we just 1109 * place the unlock indicator in the middle of the X root window and 1110 * hope for the best. */ 1111 width = last_resolution[0] / scaling_factor; 1112 height = last_resolution[1] / scaling_factor; 1113 draw_data.screen_x = 0; 1114 draw_data.screen_y = 0; 1115 draw_data.indicator_x = width / 2; 1116 draw_data.indicator_y = height / 2; 1117 1118 draw_data.time_text.x = te_eval(te_time_x_expr); 1119 draw_data.time_text.y = te_eval(te_time_y_expr); 1120 draw_data.date_text.x = te_eval(te_date_x_expr); 1121 draw_data.date_text.y = te_eval(te_date_y_expr); 1122 draw_data.keylayout_text.x = te_eval(te_layout_x_expr); 1123 draw_data.keylayout_text.y = te_eval(te_layout_y_expr); 1124 draw_data.greeter_text.x = te_eval(te_greeter_x_expr); 1125 draw_data.greeter_text.y = te_eval(te_greeter_y_expr); 1126 switch (auth_state) { 1127 case STATE_AUTH_VERIFY: 1128 case STATE_AUTH_LOCK: 1129 draw_data.status_text.x = te_eval(te_verif_x_expr); 1130 draw_data.status_text.y = te_eval(te_verif_y_expr); 1131 break; 1132 case STATE_AUTH_WRONG: 1133 case STATE_I3LOCK_LOCK_FAILED: 1134 draw_data.status_text.x = te_eval(te_wrong_x_expr); 1135 draw_data.status_text.y = te_eval(te_wrong_y_expr); 1136 break; 1137 default: 1138 draw_data.status_text.x = te_eval(te_status_x_expr); 1139 draw_data.status_text.y = te_eval(te_status_y_expr); 1140 break; 1141 } 1142 draw_data.mod_text.x = te_eval(te_modif_x_expr); 1143 draw_data.mod_text.y = te_eval(te_modif_y_expr); 1144 1145 if (te_bar_y_expr) { 1146 draw_data.bar_x = te_eval(te_bar_x_expr); 1147 draw_data.bar_y = te_eval(te_bar_y_expr); 1148 } else { 1149 double bar_offset = te_eval(te_bar_x_expr); 1150 if (bar_orientation == BAR_VERT) { 1151 draw_data.bar_x = bar_offset; 1152 draw_data.bar_y = screen_y; 1153 } else { 1154 draw_data.bar_x = screen_x; 1155 draw_data.bar_y = bar_offset; 1156 } 1157 } 1158 if (te_bar_width_expr) 1159 draw_data.bar_width = te_eval(te_bar_width_expr); 1160 else if (bar_orientation == BAR_VERT) 1161 draw_data.bar_width = height; 1162 else 1163 draw_data.bar_width = width; 1164 1165 DEBUG("Indicator at %fx%f\n", draw_data.indicator_x, draw_data.indicator_y); 1166 DEBUG("Bar at %fx%f with width %f\n", draw_data.bar_x, draw_data.bar_y, draw_data.bar_width); 1167 DEBUG("Time at %fx%f\n", draw_data.time_text.x, draw_data.time_text.y); 1168 DEBUG("Date at %fx%f\n", draw_data.date_text.x, draw_data.date_text.y); 1169 DEBUG("Layout at %fx%f\n", draw_data.keylayout_text.x, draw_data.keylayout_text.y); 1170 DEBUG("Status at %fx%f\n", draw_data.status_text.x, draw_data.status_text.y); 1171 DEBUG("Mod at %fx%f\n", draw_data.mod_text.x, draw_data.mod_text.y); 1172 1173 draw_elements(ctx, &draw_data); 1174 } 1175 1176 te_free(te_ind_x_expr); 1177 te_free(te_ind_y_expr); 1178 te_free(te_time_x_expr); 1179 te_free(te_time_y_expr); 1180 te_free(te_date_x_expr); 1181 te_free(te_date_y_expr); 1182 te_free(te_layout_x_expr); 1183 te_free(te_layout_y_expr); 1184 te_free(te_status_x_expr); 1185 te_free(te_status_y_expr); 1186 te_free(te_verif_x_expr); 1187 te_free(te_verif_y_expr); 1188 te_free(te_wrong_x_expr); 1189 te_free(te_wrong_y_expr); 1190 te_free(te_modif_x_expr); 1191 te_free(te_modif_y_expr); 1192 te_free(te_bar_x_expr); 1193 te_free(te_bar_y_expr); 1194 te_free(te_bar_width_expr); 1195 te_free(te_greeter_x_expr); 1196 te_free(te_greeter_y_expr); 1197 1198 cairo_set_source_surface(xcb_ctx, output, 0, 0); 1199 cairo_rectangle(xcb_ctx, 0, 0, resolution[0], resolution[1]); 1200 cairo_fill(xcb_ctx); 1201 1202 cairo_surface_destroy(xcb_output); 1203 cairo_surface_destroy(output); 1204 cairo_destroy(ctx); 1205 cairo_destroy(xcb_ctx); 1206 } 1207 1208 /** 1209 * Draws the configured image on the provided context. The image is drawn centered on all monitors, tiled, or just 1210 * painted starting from 0,0. It is also scaled if bg_type is FILL, MAX, or SCALE. 1211 */ 1212 void draw_image(uint32_t* root_resolution, cairo_surface_t *img, cairo_t* xcb_ctx) { 1213 1214 if (bg_type == NONE) { 1215 // Don't do any image manipulation 1216 cairo_set_source_surface(xcb_ctx, img, 0, 0); 1217 cairo_paint(xcb_ctx); 1218 return; 1219 } 1220 1221 cairo_pattern_t *pattern = cairo_pattern_create_for_surface(img); 1222 cairo_pattern_set_extend(pattern, bg_type == TILE ? CAIRO_EXTEND_REPEAT : CAIRO_EXTEND_NONE); 1223 cairo_set_source(xcb_ctx, pattern); 1224 1225 double image_width = cairo_image_surface_get_width(img); 1226 double image_height = cairo_image_surface_get_height(img); 1227 1228 for (int i = 0; i < xr_screens; i++) { 1229 // Find out scaling factors using bg_type and aspect ratios 1230 double scale_x = 1, scale_y = 1; 1231 if (bg_type == SCALE) { 1232 scale_x = xr_resolutions[i].width / image_width; 1233 scale_y = xr_resolutions[i].height / image_height; 1234 1235 } else if (bg_type == MAX || bg_type == FILL) { 1236 double aspect_diff = (double) xr_resolutions[i].height / xr_resolutions[i].width - image_height / image_width; 1237 if((bg_type == MAX && aspect_diff >= 0) || (bg_type == FILL && aspect_diff <= 0)) { 1238 scale_x = scale_y = xr_resolutions[i].width / image_width; 1239 } else if ((bg_type == MAX && aspect_diff < 0) || (bg_type == FILL && aspect_diff > 0)) { 1240 scale_x = scale_y = xr_resolutions[i].height / image_height; 1241 } 1242 } 1243 1244 // Scale and translate the pattern 1245 cairo_matrix_t matrix; 1246 cairo_matrix_init_scale(&matrix, 1/scale_x, 1/scale_y); 1247 1248 if (bg_type == TILE) { 1249 // Start image from top-left corner 1250 cairo_matrix_translate(&matrix, -xr_resolutions[i].x, -xr_resolutions[i].y); 1251 } else { 1252 // Draw image in the center of the screen 1253 cairo_matrix_translate(&matrix, 1254 (image_width * scale_x - xr_resolutions[i].width ) / 2 - xr_resolutions[i].x, 1255 (image_height * scale_y - xr_resolutions[i].height) / 2 - xr_resolutions[i].y); 1256 } 1257 1258 cairo_pattern_set_matrix(pattern, &matrix); 1259 1260 // Draw to screen 1261 cairo_rectangle(xcb_ctx, xr_resolutions[i].x, xr_resolutions[i].y, xr_resolutions[i].width, xr_resolutions[i].height); 1262 cairo_fill(xcb_ctx); 1263 } 1264 1265 cairo_pattern_destroy(pattern); 1266 } 1267 1268 /* 1269 * Calls render_lock on a new pixmap and swaps that with the current pixmap 1270 * 1271 */ 1272 void redraw_screen(void) { 1273 DEBUG("redraw_screen(unlock_state = %d, auth_state = %d) @ [%lu]\n", unlock_state, auth_state, (unsigned long)time(NULL)); 1274 xcb_pixmap_t pixmap = create_bg_pixmap(conn, win, last_resolution, color); 1275 render_lock(last_resolution, pixmap); 1276 xcb_change_window_attributes(conn, win, XCB_CW_BACK_PIXMAP, (uint32_t[1]){pixmap}); 1277 xcb_clear_area(conn, 0, win, 0, 0, last_resolution[0], last_resolution[1]); 1278 xcb_free_pixmap(conn, pixmap); 1279 xcb_flush(conn); 1280 } 1281 1282 /* 1283 * Hides the unlock indicator completely when there is no content in the 1284 * password buffer. 1285 * 1286 */ 1287 void clear_indicator(void) { 1288 if (input_position == 0) { 1289 unlock_state = STATE_STARTED; 1290 } else 1291 unlock_state = STATE_KEY_PRESSED; 1292 redraw_screen(); 1293 } 1294 1295 void *start_time_redraw_tick_pthread(void *arg) { 1296 struct timespec *ts = (struct timespec *)arg; 1297 while (1) { 1298 nanosleep(ts, NULL); 1299 redraw_screen(); 1300 } 1301 return NULL; 1302 } 1303 1304 static void time_redraw_cb(struct ev_loop *loop, ev_periodic *w, int revents) { 1305 redraw_screen(); 1306 } 1307 1308 void start_time_redraw_tick(struct ev_loop *main_loop) { 1309 if (time_redraw_tick) { 1310 ev_periodic_set(time_redraw_tick, 0., refresh_rate, 0); 1311 ev_periodic_again(main_loop, time_redraw_tick); 1312 } else { 1313 if (!(time_redraw_tick = calloc(sizeof(struct ev_periodic), 1))) { 1314 return; 1315 } 1316 ev_periodic_init(time_redraw_tick, time_redraw_cb, 0., refresh_rate, 0); 1317 ev_periodic_start(main_loop, time_redraw_tick); 1318 } 1319 }
