1 /*
2 *
3 * Conky, a system monitor, based on torsmo
4 *
5 * Any original torsmo code is licensed under the BSD license
6 *
7 * All code written since the fork of torsmo is licensed under the GPL
8 *
9 * Please see COPYING for details
10 *
11 * Copyright (c) 2004, Hannu Saransaari and Lauri Hakkarainen
12 * Copyright (c) 2005-2021 Brenden Matthews, Philip Kovacs, et. al.
13 * (see AUTHORS)
14 * All rights reserved.
15 *
16 * This program is free software: you can redistribute it and/or modify
17 * it under the terms of the GNU General Public License as published by
18 * the Free Software Foundation, either version 3 of the License, or
19 * (at your option) any later version.
20 *
21 * This program is distributed in the hope that it will be useful,
22 * but WITHOUT ANY WARRANTY; without even the implied warranty of
23 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
24 * GNU General Public License for more details.
25 * You should have received a copy of the GNU General Public License
26 * along with this program. If not, see <http://www.gnu.org/licenses/>.
27 *
28 */
29 #include "conky.h"
30 #ifdef BUILD_X11
31 #include "fonts.h"
32 #endif /* BUILD_X11 */
33 #include <cmath>
34 #include "logging.h"
35 #include "nc.h"
36 #include "specials.h"
37 #ifdef HAVE_SYS_PARAM_H
38 #include <sys/param.h>
39 #endif /* HAVE_SYS_PARAM_H */
40 #include <algorithm>
41 #include <map>
42 #include <sstream>
43 #include "colours.h"
44 #include "common.h"
45 #include "conky.h"
46
47 struct special_t *specials = nullptr;
48
49 int special_count;
50 int graph_count = 0;
51
52 std::map<int, double *> graphs;
53
54 namespace {
55 conky::range_config_setting<int> default_bar_width(
56 "default_bar_width", 0, std::numeric_limits<int>::max(), 0, false);
57 conky::range_config_setting<int> default_bar_height(
58 "default_bar_height", 0, std::numeric_limits<int>::max(), 6, false);
59
60 #ifdef BUILD_X11
61 conky::range_config_setting<int> default_graph_width(
62 "default_graph_width", 0, std::numeric_limits<int>::max(), 0, false);
63 conky::range_config_setting<int> default_graph_height(
64 "default_graph_height", 0, std::numeric_limits<int>::max(), 25, false);
65
66 conky::range_config_setting<int> default_gauge_width(
67 "default_gauge_width", 0, std::numeric_limits<int>::max(), 40, false);
68 conky::range_config_setting<int> default_gauge_height(
69 "default_gauge_height", 0, std::numeric_limits<int>::max(), 25, false);
70 #endif /* BUILD_X11 */
71
72 conky::simple_config_setting<std::string> console_graph_ticks(
73 "console_graph_ticks", " ,_,=,#", false);
74 } // namespace
75
76 /* special data types flags */
77 #define SF_SCALED (1 << 0)
78 #define SF_SHOWLOG (1 << 1)
79
80 /*
81 * Special data typedefs
82 */
83
84 struct bar {
85 char flags;
86 int width, height;
87 double scale;
88 };
89
90 struct gauge {
91 char flags;
92 int width, height;
93 double scale;
94 };
95
96 struct graph {
97 int id;
98 char flags;
99 int width, height;
100 unsigned int first_colour, last_colour;
101 double scale;
102 char tempgrad;
103 };
104
105 struct stippled_hr {
106 int height, arg;
107 };
108
109 struct tab {
110 int width, arg;
111 };
112
113 /*
114 * Scanning arguments to various special text objects
115 */
116
117 #ifdef BUILD_X11
scan_gauge(struct text_object * obj,const char * args,double scale)118 const char *scan_gauge(struct text_object *obj, const char *args,
119 double scale) {
120 struct gauge *g;
121
122 g = static_cast<struct gauge *>(malloc(sizeof(struct gauge)));
123 memset(g, 0, sizeof(struct gauge));
124
125 /*width and height*/
126 g->width = default_gauge_width.get(*state);
127 g->height = default_gauge_height.get(*state);
128
129 if (scale != 0.0) {
130 g->scale = scale;
131 } else {
132 g->flags |= SF_SCALED;
133 }
134
135 /* gauge's argument is either height or height,width */
136 if (args != nullptr) {
137 int n = 0;
138
139 if (sscanf(args, "%d,%d %n", &g->height, &g->width, &n) <= 1) {
140 if (sscanf(args, "%d %n", &g->height, &n) == 2) {
141 g->width = g->height; /*square gauge*/
142 }
143 }
144 args += n;
145 }
146
147 obj->special_data = g;
148 return args;
149 }
150 #endif
151
scan_bar(struct text_object * obj,const char * args,double scale)152 const char *scan_bar(struct text_object *obj, const char *args, double scale) {
153 struct bar *b;
154
155 b = static_cast<struct bar *>(malloc(sizeof(struct bar)));
156 memset(b, 0, sizeof(struct bar));
157
158 /* zero width means all space that is available */
159 b->width = default_bar_width.get(*state);
160 b->height = default_bar_height.get(*state);
161
162 if (scale != 0.0) {
163 b->scale = scale;
164 } else {
165 b->flags |= SF_SCALED;
166 }
167
168 /* bar's argument is either height or height,width */
169 if (args != nullptr) {
170 int n = 0;
171
172 if (sscanf(args, "%d,%d %n", &b->height, &b->width, &n) <= 1) {
173 sscanf(args, "%d %n", &b->height, &n);
174 }
175 args += n;
176 }
177
178 obj->special_data = b;
179 return args;
180 }
181
182 #ifdef BUILD_X11
scan_font(struct text_object * obj,const char * args)183 void scan_font(struct text_object *obj, const char *args) {
184 if ((args != nullptr) && (*args != 0)) {
185 obj->data.s = strndup(args, DEFAULT_TEXT_BUFFER_SIZE);
186 }
187 }
188
189 /**
190 * parses for [height,width] [color1 color2] [scale] [-t] [-l]
191 *
192 * -l will set the showlog flag, enabling logarithmic graph scales
193 * -t will set the tempgrad member to true, enabling temperature gradient colors
194 *
195 * @param[out] obj struct in which to save width, height and other options
196 * @param[in] args argument string to parse
197 * @param[in] defscale default scale if no scale argument given
198 * @return string to the command argument, nullptr if argument didn't start with
199 * a string, but a number or if invalid argument string
200 **/
scan_graph(struct text_object * obj,const char * args,double defscale)201 char *scan_graph(struct text_object *obj, const char *args, double defscale) {
202 char quoted_cmd[1024] = {'\0'}; /* double-quoted execgraph command */
203 char argstr[1024] = {'\0'}; /* args minus quoted_cmd */
204 char buf[1024] = {'\0'}; /* first unquoted string argument in argstr */
205
206 auto *g = static_cast<struct graph *>(malloc(sizeof(struct graph)));
207 memset(g, 0, sizeof(struct graph));
208 obj->special_data = g;
209
210 /* zero width means all space that is available */
211 g->id = ++graph_count;
212 g->width = default_graph_width.get(*state);
213 g->height = default_graph_height.get(*state);
214 g->first_colour = 0;
215 g->last_colour = 0;
216 g->scale = defscale;
217 g->tempgrad = FALSE;
218 if (args != nullptr) {
219 /* extract double-quoted command in case of execgraph */
220 if (*args == '"') {
221 char *_ptr;
222 size_t _size;
223 if (((_ptr = const_cast<char *>(strrchr(args, '"'))) != nullptr) &&
224 _ptr != args) {
225 _size = _ptr - args - 1;
226 } else {
227 NORM_ERR("mismatched double-quote in execgraph object");
228 return nullptr;
229 }
230
231 _size = _size < 1024 ? _size : 1023;
232 strncpy(quoted_cmd, args + 1, _size);
233 quoted_cmd[_size] = '\0';
234
235 /* copy everything after the last quote into argstr */
236 if (_size + 2 < strlen(args)) { strncpy(argstr, args + _size + 2, 1023); }
237 } else {
238 /* redundant, but simplifies the code below */
239 strncpy(argstr, args, 1023);
240 }
241
242 /* set tempgrad to true, if '-t' specified.
243 * It doesn#t matter where the argument is exactly. */
244 if ((strstr(argstr, " " TEMPGRAD) != nullptr) ||
245 strncmp(argstr, TEMPGRAD, strlen(TEMPGRAD)) == 0) {
246 g->tempgrad = TRUE;
247 }
248 /* set showlog-flag, if '-l' specified
249 * It doesn#t matter where the argument is exactly. */
250 if ((strstr(argstr, " " LOGGRAPH) != nullptr) ||
251 strncmp(argstr, LOGGRAPH, strlen(LOGGRAPH)) == 0) {
252 g->flags |= SF_SHOWLOG;
253 }
254
255 /* all the following functions try to interpret the beginning of a
256 * a string with different formaters. If successfully the return from
257 * this whole function */
258
259 /* interpret the beginning(!) of the argument string as:
260 * '[height],[width] [color1] [color2] [scale]'
261 * This means parameters like -t and -l may not be in the beginning */
262 if (sscanf(argstr, "%d,%d %x %x %lf", &g->height, &g->width,
263 &g->first_colour, &g->last_colour, &g->scale) == 5) {
264 return *quoted_cmd != 0
265 ? strndup(quoted_cmd, text_buffer_size.get(*state))
266 : nullptr;
267 }
268 /* [height],[width] [color1] [color2] */
269 g->scale = defscale;
270 if (sscanf(argstr, "%d,%d %x %x", &g->height, &g->width, &g->first_colour,
271 &g->last_colour) == 4) {
272 return *quoted_cmd != 0
273 ? strndup(quoted_cmd, text_buffer_size.get(*state))
274 : nullptr;
275 }
276 /* [command] [height],[width] [color1] [color2] [scale] */
277 if (sscanf(argstr, "%1023s %d,%d %x %x %lf", buf, &g->height, &g->width,
278 &g->first_colour, &g->last_colour, &g->scale) == 6) {
279 return strndup(buf, text_buffer_size.get(*state));
280 }
281 g->scale = defscale;
282 if (sscanf(argstr, "%1023s %d,%d %x %x", buf, &g->height, &g->width,
283 &g->first_colour, &g->last_colour) == 5) {
284 return strndup(buf, text_buffer_size.get(*state));
285 }
286
287 buf[0] = '\0';
288 g->height = default_graph_height.get(*state);
289 g->width = default_graph_width.get(*state);
290 if (sscanf(argstr, "%x %x %lf", &g->first_colour, &g->last_colour,
291 &g->scale) == 3) {
292 return *quoted_cmd != 0
293 ? strndup(quoted_cmd, text_buffer_size.get(*state))
294 : nullptr;
295 }
296 g->scale = defscale;
297 if (sscanf(argstr, "%x %x", &g->first_colour, &g->last_colour) == 2) {
298 return *quoted_cmd != 0
299 ? strndup(quoted_cmd, text_buffer_size.get(*state))
300 : nullptr;
301 }
302 if (sscanf(argstr, "%1023s %x %x %lf", buf, &g->first_colour,
303 &g->last_colour, &g->scale) == 4) {
304 return strndup(buf, text_buffer_size.get(*state));
305 }
306 g->scale = defscale;
307 if (sscanf(argstr, "%1023s %x %x", buf, &g->first_colour,
308 &g->last_colour) == 3) {
309 return strndup(buf, text_buffer_size.get(*state));
310 }
311
312 buf[0] = '\0';
313 g->first_colour = 0;
314 g->last_colour = 0;
315 if (sscanf(argstr, "%d,%d %lf", &g->height, &g->width, &g->scale) == 3) {
316 return *quoted_cmd != 0
317 ? strndup(quoted_cmd, text_buffer_size.get(*state))
318 : nullptr;
319 }
320 g->scale = defscale;
321 if (sscanf(argstr, "%d,%d", &g->height, &g->width) == 2) {
322 return *quoted_cmd != 0
323 ? strndup(quoted_cmd, text_buffer_size.get(*state))
324 : nullptr;
325 }
326 if (sscanf(argstr, "%1023s %d,%d %lf", buf, &g->height, &g->width,
327 &g->scale) < 4) {
328 g->scale = defscale;
329 // TODO(brenden): check the return value and throw an error?
330 sscanf(argstr, "%1023s %d,%d", buf, &g->height, &g->width);
331 }
332
333 if ((*quoted_cmd == 0) && (*buf == 0)) { return nullptr; }
334 return strndup(*quoted_cmd != 0 ? quoted_cmd : buf,
335 text_buffer_size.get(*state));
336 }
337
338 return nullptr;
339 }
340 #endif /* BUILD_X11 */
341
342 /*
343 * Printing various special text objects
344 */
345
new_special_t_node()346 struct special_t *new_special_t_node() {
347 auto *newnode = new special_t;
348
349 memset(newnode, 0, sizeof *newnode);
350 return newnode;
351 }
352
353 /**
354 * expands the current global linked list specials to special_count elements
355 *
356 * increases special_count
357 * @param[out] buf is set to "\x01\x00" not sure why ???
358 * @param[in] t special type enum, e.g. alignc, alignr, fg, bg, ...
359 * @return pointer to the newly inserted special of type t
360 **/
new_special(char * buf,enum special_types t)361 struct special_t *new_special(char *buf, enum special_types t) {
362 special_t *current;
363
364 buf[0] = SPECIAL_CHAR;
365 buf[1] = '\0';
366 if (specials == nullptr) { specials = new_special_t_node(); }
367 current = specials;
368 /* allocate special_count linked list elements */
369 for (int i = 0; i < special_count; i++) {
370 if (current->next == nullptr) { current->next = new_special_t_node(); }
371 current = current->next;
372 }
373 current->type = t;
374 special_count++;
375 return current;
376 }
377
new_gauge_in_shell(struct text_object * obj,char * p,unsigned int p_max_size,double usage)378 void new_gauge_in_shell(struct text_object *obj, char *p,
379 unsigned int p_max_size, double usage) {
380 static const char *gaugevals[] = {"_. ", "\\. ", " | ", " ./", " ._"};
381 auto *g = static_cast<struct gauge *>(obj->special_data);
382
383 snprintf(p, p_max_size, "%s",
384 gaugevals[round_to_positive_int(usage * 4 / g->scale)]);
385 }
386
387 #ifdef BUILD_X11
new_gauge_in_x11(struct text_object * obj,char * buf,double usage)388 void new_gauge_in_x11(struct text_object *obj, char *buf, double usage) {
389 struct special_t *s = nullptr;
390 auto *g = static_cast<struct gauge *>(obj->special_data);
391
392 if (!out_to_x.get(*state)) { return; }
393
394 if (g == nullptr) { return; }
395
396 s = new_special(buf, GAUGE);
397
398 s->arg = usage;
399 s->width = xft_dpi_scale(g->width);
400 s->height = xft_dpi_scale(g->height);
401 s->scale = g->scale;
402 }
403 #endif /* BUILD_X11 */
404
new_gauge(struct text_object * obj,char * p,unsigned int p_max_size,double usage)405 void new_gauge(struct text_object *obj, char *p, unsigned int p_max_size,
406 double usage) {
407 auto *g = static_cast<struct gauge *>(obj->special_data);
408
409 if ((p_max_size == 0) || (g == nullptr)) { return; }
410
411 if ((g->flags & SF_SCALED) != 0) {
412 g->scale = std::max(g->scale, usage);
413 } else {
414 usage = std::min(g->scale, usage);
415 }
416
417 #ifdef BUILD_X11
418 if (out_to_x.get(*state)) { new_gauge_in_x11(obj, p, usage); }
419 if (out_to_stdout.get(*state)) {
420 new_gauge_in_shell(obj, p, p_max_size, usage);
421 }
422 #else /* BUILD_X11 */
423 new_gauge_in_shell(obj, p, p_max_size, usage);
424 #endif /* BUILD_X11 */
425 }
426
427 #ifdef BUILD_X11
new_font(struct text_object * obj,char * p,unsigned int p_max_size)428 void new_font(struct text_object *obj, char *p, unsigned int p_max_size) {
429 struct special_t *s;
430 unsigned int tmp = selected_font;
431
432 if (!out_to_x.get(*state)) { return; }
433
434 if (p_max_size == 0) { return; }
435
436 s = new_special(p, FONT);
437
438 if (obj->data.s != nullptr) {
439 if (s->font_added >= static_cast<int>(fonts.size()) ||
440 (s->font_added == 0) || obj->data.s != fonts[s->font_added].name) {
441 selected_font = s->font_added = add_font(obj->data.s);
442 selected_font = tmp;
443 }
444 } else {
445 selected_font = s->font_added = 0;
446 selected_font = tmp;
447 }
448 }
449
450 /**
451 * Adds value f to graph possibly truncating and scaling the graph
452 **/
graph_append(struct special_t * graph,double f,char showaslog)453 static void graph_append(struct special_t *graph, double f, char showaslog) {
454 int i;
455
456 /* do nothing if we don't even have a graph yet */
457 if (graph->graph == nullptr) { return; }
458
459 if (showaslog != 0) {
460 #ifdef BUILD_MATH
461 f = log10(f + 1);
462 #endif
463 }
464
465 if ((graph->scaled == 0) && f > graph->scale) { f = graph->scale; }
466
467 /* shift all the data by 1 */
468 for (i = graph->graph_allocated - 1; i > 0; i--) {
469 graph->graph[i] = graph->graph[i - 1];
470 }
471 graph->graph[0] = f; /* add new data */
472
473 if (graph->scaled != 0) {
474 graph->scale =
475 *std::max_element(graph->graph + 0, graph->graph + graph->graph_width);
476 if (graph->scale < 1e-47) {
477 /* avoid NaN's when the graph is all-zero (e.g. before the first update)
478 * there is nothing magical about 1e-47 here */
479 graph->scale = 1e-47;
480 }
481 }
482 }
483
new_graph_in_shell(struct special_t * s,char * buf,int buf_max_size)484 void new_graph_in_shell(struct special_t *s, char *buf, int buf_max_size) {
485 // Split config string on comma to avoid the hassle of dealing with the
486 // idiosyncrasies of multi-byte unicode on different platforms.
487 // TODO(brenden): Parse config string once and cache result.
488 const std::string ticks = console_graph_ticks.get(*state);
489 std::stringstream ss(ticks);
490 std::string tickitem;
491 std::vector<std::string> tickitems;
492 while (std::getline(ss, tickitem, ',')) { tickitems.push_back(tickitem); }
493
494 char *p = buf;
495 char *buf_max = buf + (sizeof(char) * buf_max_size);
496 double scale = (tickitems.size() - 1) / s->scale;
497 for (int i = s->graph_allocated - 1; i >= 0; i--) {
498 const unsigned int v = round_to_positive_int(s->graph[i] * scale);
499 const char *tick = tickitems[v].c_str();
500 size_t itemlen = tickitems[v].size();
501 for (unsigned int j = 0; j < itemlen; j++) {
502 *p++ = tick[j];
503 if (p == buf_max) { goto graph_buf_end; }
504 }
505 }
506 graph_buf_end:
507 *p = '\0';
508 }
509
copy_graph(double * original_graph,int graph_width)510 double *copy_graph(double *original_graph, int graph_width) {
511 double *new_graph =
512 static_cast<double *>(malloc(graph_width * sizeof(double)));
513
514 memcpy(new_graph, original_graph, graph_width * sizeof(double));
515
516 return new_graph;
517 }
518
retrieve_graph(int graph_id,int graph_width)519 double *retrieve_graph(int graph_id, int graph_width) {
520 if (graphs.find(graph_id) == graphs.end()) {
521 return static_cast<double *>(calloc(1, graph_width * sizeof(double)));
522 } else {
523 return copy_graph(graphs[graph_id], graph_width);
524 }
525 }
526
store_graph(int graph_id,struct special_t * s)527 void store_graph(int graph_id, struct special_t *s) {
528 if (s->graph == nullptr) {
529 graphs[graph_id] = nullptr;
530 } else {
531 if (graphs.find(graph_id) != graphs.end()) { free(graphs[graph_id]); }
532 graphs[graph_id] = s->graph;
533 }
534 }
535
536 /**
537 * Creates a visual graph and/or appends val to the graph / plot
538 *
539 * @param[in] obj struct containing all relevant flags like width, height, ...
540 * @param[in] buf buffer for ascii art graph in console
541 * @param[in] buf_max_size maximum length of buf
542 * @param[in] val value to plot i.e. to add to plot
543 **/
new_graph(struct text_object * obj,char * buf,int buf_max_size,double val)544 void new_graph(struct text_object *obj, char *buf, int buf_max_size,
545 double val) {
546 struct special_t *s = nullptr;
547 auto *g = static_cast<struct graph *>(obj->special_data);
548
549 if ((g == nullptr) || (buf_max_size == 0)) { return; }
550
551 s = new_special(buf, GRAPH);
552
553 /* set graph (special) width to width in obj */
554 s->width = xft_dpi_scale(g->width);
555 if (s->width != 0) { s->graph_width = s->width; }
556
557 if (s->graph_width != s->graph_allocated) {
558 auto *graph = static_cast<double *>(
559 realloc(s->graph, s->graph_width * sizeof(double)));
560 DBGP("reallocing graph from %d to %d", s->graph_allocated, s->graph_width);
561 if (s->graph == nullptr) {
562 /* initialize */
563 std::fill_n(graph, s->graph_width, 0.0);
564 s->scale = 100;
565 } else if (graph != nullptr) {
566 if (s->graph_width > s->graph_allocated) {
567 /* initialize the new region */
568 std::fill(graph + s->graph_allocated, graph + s->graph_width, 0.0);
569 }
570 } else {
571 DBGP("reallocing FAILED");
572 graph = s->graph;
573 s->graph_width = s->graph_allocated;
574 }
575 s->graph = graph;
576 s->graph_allocated = s->graph_width;
577 graphs[g->id] = graph;
578 }
579 s->height = xft_dpi_scale(g->height);
580 s->first_colour = adjust_colours(g->first_colour);
581 s->last_colour = adjust_colours(g->last_colour);
582 if (g->scale != 0) {
583 s->scaled = 0;
584 s->scale = g->scale;
585 s->show_scale = 0;
586 } else {
587 s->scaled = 1;
588 s->scale = 1;
589 s->show_scale = 1;
590 }
591 s->tempgrad = g->tempgrad;
592 #ifdef BUILD_MATH
593 if ((g->flags & SF_SHOWLOG) != 0) {
594 s->scale_log = 1;
595 s->scale = log10(s->scale + 1);
596 }
597 #endif
598
599 int graph_id = ((struct graph *)obj->special_data)->id;
600 s->graph = retrieve_graph(graph_id, s->graph_width);
601
602 graph_append(s, val, g->flags);
603
604 store_graph(graph_id, s);
605
606 if (out_to_stdout.get(*state)) { new_graph_in_shell(s, buf, buf_max_size); }
607 }
608
new_hr(struct text_object * obj,char * p,unsigned int p_max_size)609 void new_hr(struct text_object *obj, char *p, unsigned int p_max_size) {
610 if (!out_to_x.get(*state)) { return; }
611
612 if (p_max_size == 0) { return; }
613
614 new_special(p, HORIZONTAL_LINE)->height = xft_dpi_scale(obj->data.l);
615 }
616
scan_stippled_hr(struct text_object * obj,const char * arg)617 void scan_stippled_hr(struct text_object *obj, const char *arg) {
618 struct stippled_hr *sh;
619
620 sh = static_cast<struct stippled_hr *>(malloc(sizeof(struct stippled_hr)));
621 memset(sh, 0, sizeof(struct stippled_hr));
622
623 sh->arg = stippled_borders.get(*state);
624 sh->height = 1;
625
626 if (arg != nullptr) {
627 if (sscanf(arg, "%d %d", &sh->arg, &sh->height) != 2) {
628 sscanf(arg, "%d", &sh->height);
629 }
630 }
631 if (sh->arg <= 0) { sh->arg = 1; }
632 obj->special_data = sh;
633 }
634
new_stippled_hr(struct text_object * obj,char * p,unsigned int p_max_size)635 void new_stippled_hr(struct text_object *obj, char *p,
636 unsigned int p_max_size) {
637 struct special_t *s = nullptr;
638 auto *sh = static_cast<struct stippled_hr *>(obj->special_data);
639
640 if (!out_to_x.get(*state)) { return; }
641
642 if ((sh == nullptr) || (p_max_size == 0)) { return; }
643
644 s = new_special(p, STIPPLED_HR);
645
646 s->height = xft_dpi_scale(sh->height);
647 s->arg = xft_dpi_scale(sh->arg);
648 }
649 #endif /* BUILD_X11 */
650
new_fg(struct text_object * obj,char * p,unsigned int p_max_size)651 void new_fg(struct text_object *obj, char *p, unsigned int p_max_size) {
652 #ifdef BUILD_X11
653 if (out_to_x.get(*state)) { new_special(p, FG)->arg = obj->data.l; }
654 #endif /* BUILD_X11 */
655 #ifdef BUILD_NCURSES
656 if (out_to_ncurses.get(*state)) { new_special(p, FG)->arg = obj->data.l; }
657 #endif /* BUILD_NCURSES */
658 UNUSED(obj);
659 UNUSED(p);
660 UNUSED(p_max_size);
661 }
662
663 #ifdef BUILD_X11
new_bg(struct text_object * obj,char * p,unsigned int p_max_size)664 void new_bg(struct text_object *obj, char *p, unsigned int p_max_size) {
665 if (!out_to_x.get(*state)) { return; }
666
667 if (p_max_size == 0) { return; }
668
669 new_special(p, BG)->arg = obj->data.l;
670 }
671 #endif /* BUILD_X11 */
672
new_bar_in_shell(struct text_object * obj,char * buffer,unsigned int buf_max_size,double usage)673 static void new_bar_in_shell(struct text_object *obj, char *buffer,
674 unsigned int buf_max_size, double usage) {
675 auto *b = static_cast<struct bar *>(obj->special_data);
676 unsigned int width, i, scaledusage;
677
678 if (b == nullptr) { return; }
679
680 width = b->width;
681 if (width == 0) { width = DEFAULT_BAR_WIDTH_NO_X; }
682
683 if (width > buf_max_size) { width = buf_max_size; }
684
685 scaledusage = round_to_positive_int(usage * width / b->scale);
686
687 for (i = 0; i < scaledusage; i++) {
688 buffer[i] = *(bar_fill.get(*state).c_str());
689 }
690
691 for (; i < width; i++) { buffer[i] = *(bar_unfill.get(*state).c_str()); }
692
693 buffer[i] = 0;
694 }
695
696 #ifdef BUILD_X11
new_bar_in_x11(struct text_object * obj,char * buf,double usage)697 static void new_bar_in_x11(struct text_object *obj, char *buf, double usage) {
698 struct special_t *s = nullptr;
699 auto *b = static_cast<struct bar *>(obj->special_data);
700
701 if (!out_to_x.get(*state)) { return; }
702
703 if (b == nullptr) { return; }
704
705 s = new_special(buf, BAR);
706
707 s->arg = usage;
708 s->width = xft_dpi_scale(b->width);
709 s->height = xft_dpi_scale(b->height);
710 s->scale = b->scale;
711 }
712 #endif /* BUILD_X11 */
713
714 /* usage is in range [0,255] */
new_bar(struct text_object * obj,char * p,unsigned int p_max_size,double usage)715 void new_bar(struct text_object *obj, char *p, unsigned int p_max_size,
716 double usage) {
717 auto *b = static_cast<struct bar *>(obj->special_data);
718
719 if ((p_max_size == 0) || (b == nullptr)) { return; }
720
721 if ((b->flags & SF_SCALED) != 0) {
722 b->scale = std::max(b->scale, usage);
723 } else {
724 usage = std::min(b->scale, usage);
725 }
726
727 #ifdef BUILD_X11
728 if (out_to_x.get(*state)) { new_bar_in_x11(obj, p, usage); }
729 if (out_to_stdout.get(*state)) {
730 new_bar_in_shell(obj, p, p_max_size, usage);
731 }
732 #else /* BUILD_X11 */
733 new_bar_in_shell(obj, p, p_max_size, usage);
734 #endif /* BUILD_X11 */
735 }
736
new_outline(struct text_object * obj,char * p,unsigned int p_max_size)737 void new_outline(struct text_object *obj, char *p, unsigned int p_max_size) {
738 if (p_max_size == 0) { return; }
739 new_special(p, OUTLINE)->arg = obj->data.l;
740 }
741
new_offset(struct text_object * obj,char * p,unsigned int p_max_size)742 void new_offset(struct text_object *obj, char *p, unsigned int p_max_size) {
743 if (p_max_size == 0) { return; }
744 new_special(p, OFFSET)->arg = xft_dpi_scale(obj->data.l);
745 }
746
new_voffset(struct text_object * obj,char * p,unsigned int p_max_size)747 void new_voffset(struct text_object *obj, char *p, unsigned int p_max_size) {
748 if (p_max_size == 0) { return; }
749 new_special(p, VOFFSET)->arg = xft_dpi_scale(obj->data.l);
750 }
751
new_save_coordinates(struct text_object * obj,char * p,unsigned int p_max_size)752 void new_save_coordinates(struct text_object *obj, char *p,
753 unsigned int p_max_size) {
754 if (p_max_size == 0) { return; }
755 new_special(p, SAVE_COORDINATES)->arg = obj->data.l;
756 }
757
new_alignr(struct text_object * obj,char * p,unsigned int p_max_size)758 void new_alignr(struct text_object *obj, char *p, unsigned int p_max_size) {
759 if (p_max_size == 0) { return; }
760 new_special(p, ALIGNR)->arg = xft_dpi_scale(obj->data.l);
761 }
762
763 // A positive offset pushes the text further left
new_alignc(struct text_object * obj,char * p,unsigned int p_max_size)764 void new_alignc(struct text_object *obj, char *p, unsigned int p_max_size) {
765 if (p_max_size == 0) { return; }
766 new_special(p, ALIGNC)->arg = xft_dpi_scale(obj->data.l);
767 }
768
new_goto(struct text_object * obj,char * p,unsigned int p_max_size)769 void new_goto(struct text_object *obj, char *p, unsigned int p_max_size) {
770 if (p_max_size == 0) { return; }
771 new_special(p, GOTO)->arg = xft_dpi_scale(obj->data.l);
772 }
773
scan_tab(struct text_object * obj,const char * arg)774 void scan_tab(struct text_object *obj, const char *arg) {
775 struct tab *t;
776
777 t = static_cast<struct tab *>(malloc(sizeof(struct tab)));
778 memset(t, 0, sizeof(struct tab));
779
780 t->width = 10;
781 t->arg = 0;
782
783 if (arg != nullptr) {
784 if (sscanf(arg, "%d %d", &t->width, &t->arg) != 2) {
785 sscanf(arg, "%d", &t->arg);
786 }
787 }
788 if (t->width <= 0) { t->width = 1; }
789 obj->special_data = t;
790 }
791
new_tab(struct text_object * obj,char * p,unsigned int p_max_size)792 void new_tab(struct text_object *obj, char *p, unsigned int p_max_size) {
793 struct special_t *s = nullptr;
794 auto *t = static_cast<struct tab *>(obj->special_data);
795
796 if ((t == nullptr) || (p_max_size == 0)) { return; }
797
798 s = new_special(p, TAB);
799 s->width = xft_dpi_scale(t->width);
800 s->arg = xft_dpi_scale(t->arg);
801 }
802
clear_stored_graphs()803 void clear_stored_graphs() {
804 graph_count = 0;
805 graphs.clear();
806 }
807