1 /* Conky, a system monitor, based on torsmo
3 * Any original torsmo code is licensed under the BSD license
5 * All code written since the fork of torsmo is licensed under the GPL
7 * Please see COPYING for details
9 * Copyright (c) 2004, Hannu Saransaari and Lauri Hakkarainen
10 * Copyright (c) 2005-2009 Brenden Matthews, Philip Kovacs, et. al.
12 * All rights reserved.
14 * This program is free software: you can redistribute it and/or modify
15 * it under the terms of the GNU General Public License as published by
16 * the Free Software Foundation, either version 3 of the License, or
17 * (at your option) any later version.
19 * This program is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU General Public License for more details.
23 * You should have received a copy of the GNU General Public License
24 * along with this program. If not, see <http://www.gnu.org/licenses/>.
36 /* maximum number of special things, e.g. fonts, offsets, aligns, etc. */
37 unsigned int max_specials = MAX_SPECIALS_DEFAULT;
39 /* create specials array on heap instead of stack with introduction of
41 struct special_t *specials = NULL;
43 unsigned int special_count;
45 int default_bar_width = 0, default_bar_height = 6;
47 int default_graph_width = 0, default_graph_height = 25;
48 int default_gauge_width = 40, default_gauge_height = 25;
52 * Scanning arguments to various special text objects
56 const char *scan_gauge(const char *args, int *w, int *h)
59 *w = default_gauge_width;
60 *h = default_gauge_height;
62 /* gauge's argument is either height or height,width */
66 if (sscanf(args, "%d,%d %n", h, w, &n) <= 1) {
67 if (sscanf(args, "%d %n", h, &n) == 2) {
68 *w = *h; /*square gauge*/
77 const char *scan_bar(const char *args, int *w, int *h)
79 /* zero width means all space that is available */
80 *w = default_bar_width;
81 *h = default_bar_height;
82 /* bar's argument is either height or height,width */
86 if (sscanf(args, "%d,%d %n", h, w, &n) <= 1) {
87 sscanf(args, "%d %n", h, &n);
95 char *scan_font(const char *args)
98 return strndup(args, DEFAULT_TEXT_BUFFER_SIZE);
104 char *scan_graph(const char *args, int *w, int *h,
105 unsigned int *first_colour, unsigned int *last_colour,
106 unsigned int *scale, char *showaslog, char *tempgrad)
108 const char *nographtype;
112 /* zero width means all space that is available */
113 *w = default_graph_width;
114 *h = default_graph_height;
120 // set showaslog and place the rest of the args in nographtype
121 if (strcasecmp(args, LOGGRAPH) == EQUAL) {
124 } else if (strcasecmp(args, NORMGRAPH) == EQUAL) {
127 } else if (strncasecmp(args, LOGGRAPH" ", strlen(LOGGRAPH) + 1 ) == EQUAL) {
129 nographtype = &args[strlen(LOGGRAPH) + 1];
130 } else if (strncasecmp(args, NORMGRAPH" ", strlen(NORMGRAPH) + 1 ) == EQUAL) {
132 nographtype = &args[strlen(NORMGRAPH) + 1];
137 if (strstr(args, " "TEMPGRAD)) {
140 DBGP("printing graph as %s, other args are: %s", (*showaslog ? "log" : "normal"), nographtype);
141 //check the rest of the args
142 if (sscanf(nographtype, "%d,%d %x %x %u", h, w, first_colour, last_colour, scale) == 5) {
146 if (sscanf(nographtype, "%d,%d %x %x", h, w, first_colour, last_colour) == 4) {
149 if (sscanf(nographtype, "%63s %d,%d %x %x %u", buf, h, w, first_colour, last_colour, scale) == 6) {
150 return strndup(buf, text_buffer_size);
153 if (sscanf(nographtype, "%63s %d,%d %x %x", buf, h, w, first_colour, last_colour) == 5) {
154 return strndup(buf, text_buffer_size);
159 if (sscanf(nographtype, "%x %x %u", first_colour, last_colour, scale) == 3) {
163 if (sscanf(nographtype, "%x %x", first_colour, last_colour) == 2) {
166 if (sscanf(nographtype, "%63s %x %x %u", buf, first_colour, last_colour, scale) == 4) {
167 return strndup(buf, text_buffer_size);
170 if (sscanf(nographtype, "%63s %x %x", buf, first_colour, last_colour) == 3) {
171 return strndup(buf, text_buffer_size);
176 if (sscanf(nographtype, "%d,%d %u", h, w, scale) == 3) {
180 if (sscanf(nographtype, "%d,%d", h, w) == 2) {
183 if (sscanf(nographtype, "%63s %d,%d %u", buf, h, w, scale) < 4) {
185 //TODO: check the return value and throw an error?
186 sscanf(nographtype, "%63s %d,%d", buf, h, w);
189 return strndup(buf, text_buffer_size);
192 if (buf[0] == '\0') {
195 return strndup(buf, text_buffer_size);
201 * Printing various special text objects
204 static struct special_t *new_special(char *buf, enum special_types t)
206 if (special_count >= max_specials) {
207 CRIT_ERR("too many special things in text");
210 buf[0] = SPECIAL_CHAR;
212 specials[special_count].type = t;
213 return &specials[special_count++];
217 void new_gauge(char *buf, int w, int h, int usage)
219 struct special_t *s = 0;
220 if ((output_methods & TO_X) == 0)
223 s = new_special(buf, GAUGE);
225 s->arg = (usage > 255) ? 255 : ((usage < 0) ? 0 : usage);
230 void new_bar(char *buf, int w, int h, int usage)
232 struct special_t *s = 0;
234 if ((output_methods & TO_X) == 0)
237 s = new_special(buf, BAR);
239 s->arg = (usage > 255) ? 255 : ((usage < 0) ? 0 : usage);
244 void new_font(char *buf, char *args)
246 if ((output_methods & TO_X) == 0)
250 struct special_t *s = new_special(buf, FONT);
252 if (s->font_added > font_count || !s->font_added || (strncmp(args, fonts[s->font_added].name, DEFAULT_TEXT_BUFFER_SIZE) != EQUAL) ) {
253 int tmp = selected_font;
255 selected_font = s->font_added = addfont(args);
260 struct special_t *s = new_special(buf, FONT);
261 int tmp = selected_font;
263 selected_font = s->font_added = 0;
268 static void graph_append(struct special_t *graph, double f, char showaslog)
278 if (!graph->scaled && f > graph->graph_scale) {
279 f = graph->graph_scale;
282 /* Already happens in new_graph
284 graph->graph_scale = 1;
287 graph->graph[0] = f; /* add new data */
288 /* shift all the data by 1 */
289 for (i = graph->graph_width - 1; i > 0; i--) {
290 graph->graph[i] = graph->graph[i - 1];
291 if (graph->scaled && graph->graph[i - 1] > graph->graph_scale) {
292 /* check if we need to update the scale */
293 graph->graph_scale = graph->graph[i - 1];
296 if (graph->scaled && graph->graph[graph->graph_width] > graph->graph_scale) {
297 /* check if we need to update the scale */
298 graph->graph_scale = graph->graph[graph->graph_width];
302 void new_graph(char *buf, int w, int h, unsigned int first_colour,
303 unsigned int second_colour, double i, int scale, int append, char showaslog, char tempgrad)
305 struct special_t *s = 0;
307 if ((output_methods & TO_X) == 0)
310 s = new_special(buf, GRAPH);
313 if (s->graph == NULL) {
314 if (s->width > 0 && s->width < MAX_GRAPH_DEPTH) {
315 // subtract 2 for the box
316 s->graph_width = s->width /* - 2 */;
318 s->graph_width = MAX_GRAPH_DEPTH - 2;
320 s->graph = malloc(s->graph_width * sizeof(double));
321 memset(s->graph, 0, s->graph_width * sizeof(double));
322 s->graph_scale = 100;
325 s->first_colour = adjust_colors(first_colour);
326 s->last_colour = adjust_colors(second_colour);
329 s->graph_scale = scale;
336 s->tempgrad = tempgrad;
338 s->graph_width = s->width - 2; // subtract 2 for rectangle around
342 s->graph_scale = log10(s->graph_scale + 1);
346 graph_append(s, i, showaslog);
350 void new_hr(char *buf, int a)
352 if ((output_methods & TO_X) == 0)
355 new_special(buf, HORIZONTAL_LINE)->height = a;
358 void new_stippled_hr(char *buf, int a, int b)
360 struct special_t *s = 0;
362 if ((output_methods & TO_X) == 0)
365 s = new_special(buf, STIPPLED_HR);
371 void new_fg(char *buf, long c)
373 if ((output_methods & TO_X) == 0)
376 new_special(buf, FG)->arg = c;
379 void new_bg(char *buf, long c)
381 if ((output_methods & TO_X) == 0)
384 new_special(buf, BG)->arg = c;
388 void new_outline(char *buf, long c)
390 new_special(buf, OUTLINE)->arg = c;
393 void new_offset(char *buf, long c)
395 new_special(buf, OFFSET)->arg = c;
398 void new_voffset(char *buf, long c)
400 new_special(buf, VOFFSET)->arg = c;
403 void new_alignr(char *buf, long c)
405 new_special(buf, ALIGNR)->arg = c;
408 // A postive offset pushes the text further left
409 void new_alignc(char *buf, long c)
411 new_special(buf, ALIGNC)->arg = c;
414 void new_goto(char *buf, long c)
416 new_special(buf, GOTO)->arg = c;
419 void new_tab(char *buf, int a, int b)
421 struct special_t *s = new_special(buf, TAB);