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Manual page management
[pipeglade.git] / pipeglade.c
blobb1246cf5f0524eb30b250ab14c702a846bea7037
1 /*
2 * Copyright (c) 2014-2016 Bert Burgemeister <trebbu@googlemail.com>
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining
5 * a copy of this software and associated documentation files (the
6 * "Software"), to deal in the Software without restriction, including
7 * without limitation the rights to use, copy, modify, merge, publish,
8 * distribute, sublicense, and/or sell copies of the Software, and to
9 * permit persons to whom the Software is furnished to do so, subject to
10 * the following conditions:
11 *
12 * The above copyright notice and this permission notice shall be
13 * included in all copies or substantial portions of the Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
19 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
20 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
21 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
22 */
23
24 #include <cairo-pdf.h>
25 #include <cairo-ps.h>
26 #include <cairo-svg.h>
27 #include <errno.h>
28 #include <fcntl.h>
29 #include <gtk/gtk.h>
30 #include <gtk/gtkunixprint.h>
31 #include <gtk/gtkx.h>
32 #include <inttypes.h>
33 #include <libxml/xpath.h>
34 #include <locale.h>
35 #include <math.h>
36 #include <pthread.h>
37 #include <stdio.h>
38 #include <stdarg.h>
39 #include <stdbool.h>
40 #include <stdlib.h>
41 #include <string.h>
42 #include <sys/select.h>
43 #include <sys/stat.h>
44 #include <time.h>
45 #include <unistd.h>
46
47 #define VERSION "4.7.0"
48 #define BUFLEN 256
49 #define WHITESPACE " \t\n"
50 #define MAIN_WIN "main"
51 #define USAGE \
52 "usage: pipeglade [[-i in-fifo] " \
53 "[-o out-fifo] " \
54 "[-b] " \
55 "[-u glade-file.ui] " \
56 "[-e xid]\n" \
57 " [-l log-file] " \
58 "[-O err-file] " \
59 "[--display X-server]] | " \
60 "[-h |" \
61 "-G |" \
62 "-V]\n"
63
64 #define ABORT \
65 do { \
66 fprintf(stderr, \
67 "In %s (%s:%d): ", \
68 __func__, __FILE__, __LINE__); \
69 abort(); \
70 } while (0)
71
72 #define OOM_ABORT \
73 do { \
74 fprintf(stderr, \
75 "Out of memory in %s (%s:%d): ", \
76 __func__, __FILE__, __LINE__); \
77 abort(); \
78 } while (0)
79
80 \f
81 /*
82 * ============================================================
83 * Helper functions
84 * ============================================================
85 */
86
87 /*
88 * Check if s1 and s2 are equal strings
89 */
90 static bool
91 eql(const char *s1, const char *s2)
92 {
93 return s1 != NULL && s2 != NULL && strcmp(s1, s2) == 0;
94 }
95
96 /*
97 * Print a formatted message to stream s and give up with status
98 */
99 static void
100 bye(int status, FILE *s, const char *fmt, ...)
101 {
102 va_list ap;
103
104 va_start(ap, fmt);
105 vfprintf(s, fmt, ap);
106 va_end(ap);
107 exit(status);
108 }
109
110 static void
111 show_lib_versions(void)
112 {
113 bye(EXIT_SUCCESS, stdout,
114 "GTK+ v%d.%d.%d (running v%d.%d.%d)\n"
115 "cairo v%s (running v%s)\n",
116 GTK_MAJOR_VERSION, GTK_MINOR_VERSION, GTK_MICRO_VERSION,
117 gtk_get_major_version(), gtk_get_minor_version(),
118 gtk_get_micro_version(),
119 CAIRO_VERSION_STRING, cairo_version_string());
120 }
121
122 /*
123 * XEmbed us if xid_s is given, or show a standalone window; give up
124 * on errors
125 */
126 static void
127 xembed_if(char *xid_s, GObject *main_window)
128 {
129 GtkWidget *plug, *body;
130 Window xid;
131 char xid_s2[BUFLEN];
132
133 if (xid_s == NULL) { /* standalone */
134 gtk_widget_show(GTK_WIDGET(main_window));
135 return;
136 }
137 /* We're being XEmbedded */
138 xid = strtoul(xid_s, NULL, 10);
139 snprintf(xid_s2, BUFLEN, "%lu", xid);
140 if (!eql(xid_s, xid_s2))
141 bye(EXIT_FAILURE, stderr,
142 "%s is not a valid XEmbed socket id\n", xid_s);
143 body = gtk_bin_get_child(GTK_BIN(main_window));
144 gtk_container_remove(GTK_CONTAINER(main_window), body);
145 plug = gtk_plug_new(xid);
146 if (!gtk_plug_get_embedded(GTK_PLUG(plug)))
147 bye(EXIT_FAILURE, stderr,
148 "unable to embed into XEmbed socket %s\n", xid_s);
149 gtk_container_add(GTK_CONTAINER(plug), body);
150 gtk_widget_show(plug);
151 }
152
153 /*
154 * If requested, redirect stderr to file name
155 */
156 static void
157 redirect_stderr(const char *name)
158 {
159 if (name == NULL)
160 return;
161 if (freopen(name, "a", stderr) == NULL)
162 /* complaining on stdout since stderr is closed now */
163 bye(EXIT_FAILURE, stdout, "redirecting stderr to %s: %s\n",
164 name, strerror(errno));
165 if (fchmod(fileno(stderr), 0600) < 0)
166 bye(EXIT_FAILURE, stdout, "setting permissions of %s: %s\n",
167 name, strerror(errno));
168 setvbuf(stderr, NULL, _IOLBF, 0);
169 return;
170 }
171
172 /*
173 * fork() if requested in bg; give up on errors
174 */
175 static void
176 go_bg_if(bool bg, FILE *in, FILE *out, char *err_file)
177 {
178 pid_t pid = 0;
179
180 if (!bg)
181 return;
182 if (in == stdin || out == stdout)
183 bye(EXIT_FAILURE, stderr,
184 "parameter -b requires both -i and -o\n");
185 pid = fork();
186 if (pid < 0)
187 bye(EXIT_FAILURE, stderr,
188 "going to background: %s\n", strerror(errno));
189 if (pid > 0)
190 bye(EXIT_SUCCESS, stdout, "%d\n", pid);
191 /* We're the child */
192 close(fileno(stdin)); /* making certain not-so-smart */
193 close(fileno(stdout)); /* system/run-shell commands happy */
194 if (err_file == NULL)
195 freopen("/dev/null", "w", stderr);
196 }
197
198 /*
199 * Return the current locale and set it to "C". Should be free()d if
200 * done.
201 */
202 static char *
203 lc_numeric()
204 {
205 char *lc_orig;
206 char *lc = setlocale(LC_NUMERIC, NULL);
207
208 if ((lc_orig = malloc(strlen(lc) + 1)) == NULL)
209 OOM_ABORT;
210 strcpy(lc_orig, lc);
211 setlocale(LC_NUMERIC, "C");
212 return lc_orig;
213 }
214
215 /*
216 * Set locale (back) to lc; free lc
217 */
218 static void
219 lc_numeric_free(char *lc)
220 {
221 setlocale(LC_NUMERIC, lc);
222 free(lc);
223 }
224
225 /*
226 * Print a warning about a malformed command to stderr. Runs inside
227 * gtk_main().
228 */
229 static void
230 ign_cmd(GType type, const char *msg)
231 {
232 const char *name, *pad = " ";
233
234 if (type == G_TYPE_INVALID) {
235 name = "";
236 pad = "";
237 } else
238 name = g_type_name(type);
239 fprintf(stderr, "ignoring %s%scommand \"%s\"\n", name, pad, msg);
240 }
241
242 /*
243 * Check if n is, or can be made, the name of a fifo, and put its
244 * struct stat into sb. Give up if n exists but is not a fifo.
245 */
246 static void
247 find_fifo(const char *n, struct stat *sb)
248 {
249 int fd;
250
251 if ((fd = open(n, O_RDONLY | O_NONBLOCK)) > -1) {
252 if (fstat(fd, sb) == 0 &&
253 S_ISFIFO(sb->st_mode) &&
254 fchmod(fd, 0600) == 0) {
255 fstat(fd, sb);
256 close(fd);
257 return;
258 }
259 bye(EXIT_FAILURE, stderr, "using pre-existing fifo %s: %s\n",
260 n, strerror(errno));
261 }
262 if (mkfifo(n, 0600) != 0)
263 bye(EXIT_FAILURE, stderr, "making fifo %s: %s\n",
264 n, strerror(errno));
265 find_fifo(n, sb);
266 }
267
268 static FILE *
269 open_fifo(const char *name, const char *fmode, FILE *fallback, int bmode)
270 {
271 FILE *s = NULL;
272 int fd;
273 struct stat sb1, sb2;
274
275 if (name == NULL)
276 s = fallback;
277 else {
278 find_fifo(name, &sb1);
279 /* TODO: O_RDWR on fifo is undefined in POSIX */
280 if (!((fd = open(name, O_RDWR)) > -1 &&
281 fstat(fd, &sb2) == 0 &&
282 sb1.st_mode == sb2.st_mode &&
283 sb1.st_ino == sb2.st_ino &&
284 sb1.st_dev == sb2.st_dev &&
285 (s = fdopen(fd, fmode)) != NULL))
286 bye(EXIT_FAILURE, stderr, "opening fifo %s (%s): %s\n",
287 name, fmode, strerror(errno));
288 }
289 setvbuf(s, NULL, bmode, 0);
290 return s;
291 }
292
293 /*
294 * Create a log file if necessary, and open it. A name of "-"
295 * requests use of stderr.
296 */
297 static FILE *
298 open_log(const char *name)
299 {
300 FILE *s = NULL;
301
302 if (name == NULL)
303 return NULL;
304 if (eql(name, "-"))
305 return stderr;
306 if ((s = fopen(name, "a")) == NULL)
307 bye(EXIT_FAILURE, stderr, "opening log file %s: %s\n",
308 name, strerror(errno));
309 if (fchmod(fileno(s), 0600) < 0)
310 bye(EXIT_FAILURE, stderr, "setting permissions of %s: %s\n",
311 name, strerror(errno));
312 return s;
313 }
314
315 /*
316 * Delete fifo fn if streams s and forbidden are distinct
317 */
318 static void
319 rm_unless(FILE *forbidden, FILE *s, char *fn)
320 {
321 if (s == forbidden)
322 return;
323 fclose(s);
324 remove(fn);
325 }
326
327 /*
328 * Microseconds elapsed since start
329 */
330 static long int
331 usec_since(struct timespec *start)
332 {
333 struct timespec now;
334
335 clock_gettime(CLOCK_MONOTONIC, &now);
336 return (now.tv_sec - start->tv_sec) * 1e6 +
337 (now.tv_nsec - start->tv_nsec) / 1e3;
338 }
339
340 /*
341 * Write string s to stream o, escaping newlines and backslashes
342 */
343 static void
344 fputs_escaped(const char *s, FILE *o)
345 {
346 size_t i = 0;
347 char c;
348
349 while ((c = s[i++]) != '\0')
350 switch (c) {
351 case '\\': fputs("\\\\", o); break;
352 case '\n': fputs("\\n", o); break;
353 default: putc(c, o); break;
354 }
355 }
356
357 /*
358 * Write log file
359 */
360 static void
361 log_msg(FILE *l, char *msg)
362 {
363 static char *old_msg;
364 static struct timespec start;
365
366 if (l == NULL) /* no logging */
367 return;
368 if (msg == NULL && old_msg == NULL)
369 fprintf(l, "##########\t##### (New Pipeglade session) #####\n");
370 else if (msg == NULL && old_msg != NULL) {
371 /* command done; start idle */
372 fprintf(l, "%10ld\t", usec_since(&start));
373 fputs_escaped(old_msg, l);
374 putc('\n', l);
375 free(old_msg);
376 old_msg = NULL;
377 } else if (msg != NULL && old_msg == NULL) {
378 /* idle done; start command */
379 fprintf(l, "%10ld\t### (Idle) ###\n", usec_since(&start));
380 if ((old_msg = malloc(strlen(msg) + 1)) == NULL)
381 OOM_ABORT;
382 strcpy(old_msg, msg);
383 } else
384 ABORT;
385 clock_gettime(CLOCK_MONOTONIC, &start);
386 }
387
388 static bool
389 has_suffix(const char *s, const char *suffix)
390 {
391 int s_suf = strlen(s) - strlen(suffix);
392
393 if (s_suf < 0)
394 return false;
395 return eql(suffix, s + s_suf);
396 }
397
398 /*
399 * Remove suffix from name; find the object named like this
400 */
401 static GObject *
402 obj_sans_suffix(GtkBuilder *builder, const char *suffix, const char *name)
403 {
404 char str[BUFLEN + 1] = {'\0'};
405 int str_l;
406
407 str_l = suffix - name;
408 strncpy(str, name, str_l < BUFLEN ? str_l : BUFLEN);
409 return gtk_builder_get_object(builder, str);
410 }
411
412 /*
413 * Read UI definition from ui_file; give up on errors
414 */
415 static GtkBuilder *
416 builder_from_file(char *ui_file)
417 {
418 GError *error = NULL;
419 GtkBuilder *b;
420
421 b = gtk_builder_new();
422 if (gtk_builder_add_from_file(b, ui_file, &error) == 0)
423 bye(EXIT_FAILURE, stderr, "%s\n", error->message);
424 return b;
425 }
426
427 /*
428 * Return the id attribute of widget
429 */
430 static const char *
431 widget_id(GtkBuildable *widget)
432 {
433 return gtk_buildable_get_name(widget);
434 }
435
436 /*
437 * Get the main window; give up on errors
438 */
439 static GObject *
440 find_main_window(GtkBuilder *builder)
441 {
442 GObject *mw;
443
444 if (GTK_IS_WINDOW(mw = gtk_builder_get_object(builder, MAIN_WIN)))
445 return mw;
446 bye(EXIT_FAILURE, stderr, "no toplevel window with id \'" MAIN_WIN "\'\n");
447 return NULL; /* NOT REACHED */
448 }
449
450 /*
451 * Store a line from stream s into buf, which should have been malloc'd
452 * to bufsize. Enlarge buf and bufsize if necessary.
453 */
454 static size_t
455 read_buf(FILE *s, char **buf, size_t *bufsize)
456 {
457 bool esc = false;
458 fd_set rfds;
459 int c;
460 int ifd = fileno(s);
461 size_t i = 0;
462
463 FD_ZERO(&rfds);
464 FD_SET(ifd, &rfds);
465 for (;;) {
466 select(ifd + 1, &rfds, NULL, NULL, NULL);
467 c = getc(s);
468 if (c == '\n' || feof(s))
469 break;
470 if (i >= *bufsize - 1)
471 if ((*buf = realloc(*buf, *bufsize *= 2)) == NULL)
472 OOM_ABORT;
473 if (esc) {
474 esc = false;
475 switch (c) {
476 case 'n': (*buf)[i++] = '\n'; break;
477 case 'r': (*buf)[i++] = '\r'; break;
478 default: (*buf)[i++] = c; break;
479 }
480 } else if (c == '\\')
481 esc = true;
482 else
483 (*buf)[i++] = c;
484 }
485 (*buf)[i] = '\0';
486 return i;
487 }
488
489 \f
490 /*
491 * ============================================================
492 * Receiving feedback from the GUI
493 * ============================================================
494 */
495
496 /*
497 * Preclude triggering of GTK's default GtkLinkButton action which
498 * could otherwise interfere with pipeglade's own signal blocking
499 */
500 gboolean
501 gtk_show_uri(GdkScreen *s, const gchar *uri, guint32 ts, GError **e)
502 {
503 (void) s; (void) uri; (void) ts; (void) e;
504 return TRUE;
505 }
506
507 static void
508 send_msg_to(FILE* o, GtkBuildable *obj, const char *tag, va_list ap)
509 {
510 char *data;
511 const char *w_id = widget_id(obj);
512 fd_set wfds;
513 int ofd = fileno(o);
514 struct timeval timeout = {1, 0};
515
516 FD_ZERO(&wfds);
517 FD_SET(ofd, &wfds);
518 if (select(ofd + 1, NULL, &wfds, NULL, &timeout) == 1) {
519 fprintf(o, "%s:%s ", w_id, tag);
520 while ((data = va_arg(ap, char *)) != NULL)
521 fputs_escaped(data, o);
522 putc('\n', o);
523 } else
524 fprintf(stderr,
525 "send error; discarding feedback message %s:%s\n",
526 w_id, tag);
527 }
528
529 /*
530 * Send GUI feedback to stream o. The message format is
531 * "<origin>:<tag> <data ...>". The variadic arguments are strings;
532 * last argument must be NULL.
533 */
534 static void
535 send_msg(FILE *o, GtkBuildable *obj, const char *tag, ...)
536 {
537 va_list ap;
538
539 va_start(ap, tag);
540 send_msg_to(o, obj, tag, ap);
541 va_end(ap);
542 }
543
544 /*
545 * Send message from GUI to stream o. The message format is
546 * "<origin>:set <data ...>", which happens to be a legal command.
547 * The variadic arguments are strings; last argument must be NULL.
548 */
549 static void
550 send_msg_as_cmd(FILE *o, GtkBuildable *obj, const char *tag, ...)
551 {
552 va_list ap;
553
554 va_start(ap, tag);
555 send_msg_to(o, obj, "set", ap);
556 va_end(ap);
557 }
558
559 /*
560 * Stuff to pass around
561 */
562 struct info {
563 FILE *fout; /* UI feedback messages */
564 FILE *fin; /* command input */
565 FILE *flog; /* logging output */
566 GtkBuilder *builder; /* to be read from .ui file */
567 GObject *obj;
568 GtkTreeModel *model;
569 char *txt;
570 char *data;
571 };
572
573 /*
574 * Data to be passed to and from the GTK main loop
575 */
576 struct ui_data {
577 void (*fn)(struct ui_data *);
578 GObject *obj;
579 char *action;
580 char *data;
581 char *cmd;
582 char *cmd_tokens;
583 GType type;
584 struct info *args;
585 };
586
587 /*
588 * Return pointer to a newly allocated struct info
589 */
590 struct info *
591 info_new_full(FILE *stream, GObject *obj, GtkTreeModel *model, char *txt)
592 {
593 struct info *ar;
594
595 if ((ar = malloc(sizeof(struct info))) == NULL)
596 OOM_ABORT;
597 ar->fout = stream;
598 ar->fin = NULL;
599 ar->flog = NULL;
600 ar->builder = NULL;
601 ar->obj = obj;
602 ar->model = model;
603 ar->txt = txt;
604 return ar;
605 }
606
607 struct info *
608 info_txt_new(FILE *stream, char *txt)
609 {
610 return info_new_full(stream, NULL, NULL, txt);
611 }
612
613 struct info *
614 info_obj_new(FILE *stream, GObject *obj, GtkTreeModel *model)
615 {
616 return info_new_full(stream, obj, model, NULL);
617 }
618
619 /*
620 * Use msg_sender() to send a message describing a particular cell
621 */
622 static void
623 send_tree_cell_msg_by(void msg_sender(FILE *, GtkBuildable *, const char *, ...),
624 const char *path_s,
625 GtkTreeIter *iter, int col, struct info *ar)
626 {
627 GtkBuildable *obj = GTK_BUILDABLE(ar->obj);
628 GtkTreeModel *model = ar->model;
629 GType col_type;
630 GValue value = G_VALUE_INIT;
631 char str[BUFLEN], *lc = lc_numeric();
632
633 gtk_tree_model_get_value(model, iter, col, &value);
634 col_type = gtk_tree_model_get_column_type(model, col);
635 switch (col_type) {
636 case G_TYPE_INT:
637 snprintf(str, BUFLEN, " %d %d", col, g_value_get_int(&value));
638 msg_sender(ar->fout, obj, "gint", path_s, str, NULL);
639 break;
640 case G_TYPE_LONG:
641 snprintf(str, BUFLEN, " %d %ld", col, g_value_get_long(&value));
642 msg_sender(ar->fout, obj, "glong", path_s, str, NULL);
643 break;
644 case G_TYPE_INT64:
645 snprintf(str, BUFLEN, " %d %" PRId64, col, g_value_get_int64(&value));
646 msg_sender(ar->fout, obj, "gint64", path_s, str, NULL);
647 break;
648 case G_TYPE_UINT:
649 snprintf(str, BUFLEN, " %d %u", col, g_value_get_uint(&value));
650 msg_sender(ar->fout, obj, "guint", path_s, str, NULL);
651 break;
652 case G_TYPE_ULONG:
653 snprintf(str, BUFLEN, " %d %lu", col, g_value_get_ulong(&value));
654 msg_sender(ar->fout, obj, "gulong", path_s, str, NULL);
655 break;
656 case G_TYPE_UINT64:
657 snprintf(str, BUFLEN, " %d %" PRIu64, col, g_value_get_uint64(&value));
658 msg_sender(ar->fout, obj, "guint64", path_s, str, NULL);
659 break;
660 case G_TYPE_BOOLEAN:
661 snprintf(str, BUFLEN, " %d %d", col, g_value_get_boolean(&value));
662 msg_sender(ar->fout, obj, "gboolean", path_s, str, NULL);
663 break;
664 case G_TYPE_FLOAT:
665 snprintf(str, BUFLEN, " %d %f", col, g_value_get_float(&value));
666 msg_sender(ar->fout, obj, "gfloat", path_s, str, NULL);
667 break;
668 case G_TYPE_DOUBLE:
669 snprintf(str, BUFLEN, " %d %f", col, g_value_get_double(&value));
670 msg_sender(ar->fout, obj, "gdouble", path_s, str, NULL);
671 break;
672 case G_TYPE_STRING:
673 snprintf(str, BUFLEN, " %d ", col);
674 msg_sender(ar->fout, obj, "gchararray", path_s, str, g_value_get_string(&value), NULL);
675 break;
676 default:
677 fprintf(stderr, "column %d not implemented: %s\n", col, G_VALUE_TYPE_NAME(&value));
678 break;
679 }
680 g_value_unset(&value);
681 lc_numeric_free(lc);
682 }
683
684 /*
685 * Use msg_sender() to send one message per column for a single row
686 */
687 static void
688 send_tree_row_msg_by(void msg_sender(FILE *, GtkBuildable *, const char *, ...),
689 char *path_s, GtkTreeIter *iter, struct info *ar)
690 {
691 int col;
692
693 for (col = 0; col < gtk_tree_model_get_n_columns(ar->model); col++)
694 send_tree_cell_msg_by(msg_sender, path_s, iter, col, ar);
695 }
696
697 /*
698 * send_tree_row_msg serves as an argument for
699 * gtk_tree_selection_selected_foreach()
700 */
701 static gboolean
702 send_tree_row_msg(GtkTreeModel *model,
703 GtkTreePath *path, GtkTreeIter *iter, struct info *ar)
704 {
705 char *path_s = gtk_tree_path_to_string(path);
706
707 ar->model = model;
708 send_tree_row_msg_by(send_msg, path_s, iter, ar);
709 g_free(path_s);
710 return FALSE;
711 }
712
713 /*
714 * save_tree_row_msg serves as an argument for
715 * gtk_tree_model_foreach().
716 * Send message from GUI to global stream "save".
717 */
718 static gboolean
719 save_tree_row_msg(GtkTreeModel *model,
720 GtkTreePath *path, GtkTreeIter *iter, struct info *ar)
721 {
722 char *path_s = gtk_tree_path_to_string(path);
723
724 ar->model = model;
725 send_tree_row_msg_by(send_msg_as_cmd, path_s, iter, ar);
726 g_free(path_s);
727 return FALSE;
728 }
729
730 static void
731 cb_calendar(GtkBuildable *obj, struct info *ar)
732 {
733 char str[BUFLEN];
734 unsigned int year = 0, month = 0, day = 0;
735
736 gtk_calendar_get_date(GTK_CALENDAR(obj), &year, &month, &day);
737 snprintf(str, BUFLEN, "%04u-%02u-%02u", year, ++month, day);
738 send_msg(ar->fout, obj, ar->txt, str, NULL);
739 }
740
741 static void
742 cb_color_button(GtkBuildable *obj, struct info *ar)
743 {
744 GdkRGBA color;
745
746 gtk_color_chooser_get_rgba(GTK_COLOR_CHOOSER(obj), &color);
747 send_msg(ar->fout, obj, ar->txt, gdk_rgba_to_string(&color), NULL);
748 }
749
750 static void
751 cb_editable(GtkBuildable *obj, struct info *ar)
752 {
753 send_msg(ar->fout, obj, ar->txt, gtk_entry_get_text(GTK_ENTRY(obj)), NULL);
754 }
755
756 /*
757 * Callback that sends a message about a pointer device button press
758 * in a GtkEventBox
759 */
760 static bool
761 cb_event_box_button(GtkBuildable *obj, GdkEvent *e, struct info *ar)
762 {
763 char data[BUFLEN], *lc = lc_numeric();
764
765 snprintf(data, BUFLEN, "%d %.1lf %.1lf",
766 e->button.button, e->button.x, e->button.y);
767 send_msg(ar->fout, obj, ar->txt, data, NULL);
768 lc_numeric_free(lc);
769 return true;
770 }
771
772 /*
773 * Callback that sends in a message the name of the key pressed when
774 * a GtkEventBox is focused
775 */
776 static bool
777 cb_event_box_key(GtkBuildable *obj, GdkEvent *e, struct info *ar)
778 {
779 send_msg(ar->fout, obj, ar->txt, gdk_keyval_name(e->key.keyval), NULL);
780 return true;
781 }
782
783 /*
784 * Callback that sends a message about pointer device motion in a
785 * GtkEventBox
786 */
787 static bool
788 cb_event_box_motion(GtkBuildable *obj, GdkEvent *e, struct info *ar)
789 {
790 char data[BUFLEN], *lc = lc_numeric();
791
792 snprintf(data, BUFLEN, "%.1lf %.1lf", e->button.x, e->button.y);
793 send_msg(ar->fout, obj, ar->txt, data, NULL);
794 lc_numeric_free(lc);
795 return true;
796 }
797
798 /*
799 * Callback that only sends "name:tag" and returns false
800 */
801 static bool
802 cb_event_simple(GtkBuildable *obj, GdkEvent *e, struct info *ar)
803 {
804 (void) e;
805 send_msg(ar->fout, obj, ar->txt, NULL);
806 return false;
807 }
808
809 static void
810 cb_file_chooser_button(GtkBuildable *obj, struct info *ar)
811 {
812 send_msg(ar->fout, obj, ar->txt,
813 gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(obj)), NULL);
814 }
815
816 static void
817 cb_font_button(GtkBuildable *obj, struct info *ar)
818 {
819 send_msg(ar->fout, obj, ar->txt,
820 gtk_font_button_get_font_name(GTK_FONT_BUTTON(obj)), NULL);
821 }
822
823 static void
824 cb_menu_item(GtkBuildable *obj, struct info *ar)
825 {
826 send_msg(ar->fout, obj, ar->txt,
827 gtk_menu_item_get_label(GTK_MENU_ITEM(obj)), NULL);
828 }
829
830 static void
831 cb_range(GtkBuildable *obj, struct info *ar)
832 {
833 char str[BUFLEN], *lc = lc_numeric();
834
835 snprintf(str, BUFLEN, "%f", gtk_range_get_value(GTK_RANGE(obj)));
836 send_msg(ar->fout, obj, ar->txt, str, NULL);
837 lc_numeric_free(lc);
838 }
839
840 /*
841 * Callback that sends user's selection from a file dialog
842 */
843 static void
844 cb_send_file_chooser_dialog_selection(struct info *ar)
845 {
846 send_msg(ar->fout, GTK_BUILDABLE(ar->obj), "file",
847 gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(ar->obj)),
848 NULL);
849 send_msg(ar->fout, GTK_BUILDABLE(ar->obj), "folder",
850 gtk_file_chooser_get_current_folder(GTK_FILE_CHOOSER(ar->obj)),
851 NULL);
852 }
853
854 /*
855 * Callback that sends in a message the content of the text buffer
856 * passed in user_data
857 */
858 static void
859 cb_send_text(GtkBuildable *obj, struct info *ar)
860 {
861 GtkTextIter a, b;
862
863 gtk_text_buffer_get_bounds(GTK_TEXT_BUFFER(ar->obj), &a, &b);
864 send_msg(ar->fout, obj, "text",
865 gtk_text_buffer_get_text(GTK_TEXT_BUFFER(ar->obj), &a, &b, TRUE),
866 NULL);
867 }
868
869 /*
870 * Callback that sends in a message the highlighted text from the text
871 * buffer which was passed in user_data
872 */
873 static void
874 cb_send_text_selection(GtkBuildable *obj, struct info *ar)
875 {
876 GtkTextIter a, b;
877
878 gtk_text_buffer_get_selection_bounds(GTK_TEXT_BUFFER(ar->obj), &a, &b);
879 send_msg(ar->fout, obj, "text",
880 gtk_text_buffer_get_text(GTK_TEXT_BUFFER(ar->obj), &a, &b, TRUE),
881 NULL);
882 }
883
884 /*
885 * Callback that only sends "name:tag data" and returns true
886 */
887 static bool
888 cb_simple(GtkBuildable *obj, struct info *ar)
889 {
890 send_msg(ar->fout, obj, ar->txt, ar->data, NULL);
891 return true;
892 }
893
894 static void
895 cb_spin_button(GtkBuildable *obj, struct info *ar)
896 {
897 char str[BUFLEN], *lc = lc_numeric();
898
899 snprintf(str, BUFLEN, "%f", gtk_spin_button_get_value(GTK_SPIN_BUTTON(obj)));
900 send_msg(ar->fout, obj, ar->txt, str, NULL);
901 lc_numeric_free(lc);
902 }
903
904 static void
905 cb_switch(GtkBuildable *obj, void *pspec, struct info *ar)
906 {
907 (void) pspec;
908 send_msg(ar->fout, obj,
909 gtk_switch_get_active(GTK_SWITCH(obj)) ? "1" : "0",
910 NULL);
911 }
912
913 static void
914 cb_toggle_button(GtkBuildable *obj, struct info *ar)
915 {
916 send_msg(ar->fout, obj,
917 gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(obj)) ? "1" : "0",
918 NULL);
919 }
920
921 static void
922 cb_tree_selection(GtkBuildable *obj, struct info *ar)
923 {
924 GtkTreeSelection *sel = GTK_TREE_SELECTION(obj);
925 GtkTreeView *view = gtk_tree_selection_get_tree_view(sel);
926
927 ar->obj = G_OBJECT(view);
928 send_msg(ar->fout, GTK_BUILDABLE(view), ar->txt, NULL);
929 gtk_tree_selection_selected_foreach(
930 sel, (GtkTreeSelectionForeachFunc) send_tree_row_msg, ar);
931 }
932
933 \f
934 /*
935 * ============================================================
936 * cb_draw() maintains a drawing on a GtkDrawingArea; it needs a few
937 * helper functions
938 * ============================================================
939 */
940
941 /*
942 * The set of supported drawing operations
943 */
944 enum cairo_fn {
945 ARC,
946 ARC_NEGATIVE,
947 CLOSE_PATH,
948 CURVE_TO,
949 FILL,
950 FILL_PRESERVE,
951 LINE_TO,
952 MOVE_TO,
953 RECTANGLE,
954 REL_CURVE_TO,
955 REL_LINE_TO,
956 REL_MOVE_TO,
957 REL_MOVE_FOR,
958 RESET_CTM,
959 SET_DASH,
960 SET_FONT_FACE,
961 SET_FONT_SIZE,
962 SET_LINE_CAP,
963 SET_LINE_JOIN,
964 SET_LINE_WIDTH,
965 SET_SOURCE_RGBA,
966 SHOW_TEXT,
967 STROKE,
968 STROKE_PRESERVE,
969 TRANSFORM,
970 };
971
972 /*
973 * Text placement mode for rel_move_for()
974 */
975 enum ref_point {
976 C,
977 E,
978 N,
979 NE,
980 NW,
981 S,
982 SE,
983 SW,
984 W,
985 };
986
987 enum draw_op_policy {
988 APPEND,
989 BEFORE,
990 REPLACE,
991 };
992
993 /*
994 * One single element of a drawing
995 */
996 struct draw_op {
997 struct draw_op *next;
998 struct draw_op *prev;
999 unsigned long long int id;
1000 unsigned long long int before;
1001 enum draw_op_policy policy;
1002 enum cairo_fn op;
1003 void *op_args;
1004 };
1005
1006 /*
1007 * Argument sets for the various drawing operations
1008 */
1009 struct arc_args {
1010 double x;
1011 double y;
1012 double radius;
1013 double angle1;
1014 double angle2;
1015 };
1016
1017 struct curve_to_args {
1018 double x1;
1019 double y1;
1020 double x2;
1021 double y2;
1022 double x3;
1023 double y3;
1024 };
1025
1026 struct move_to_args {
1027 double x;
1028 double y;
1029 };
1030
1031 struct rectangle_args {
1032 double x;
1033 double y;
1034 double width;
1035 double height;
1036 };
1037
1038 struct rel_move_for_args {
1039 enum ref_point ref;
1040 int len;
1041 char text[];
1042 };
1043
1044 struct set_dash_args {
1045 int num_dashes;
1046 double dashes[];
1047 };
1048
1049 struct set_font_face_args {
1050 cairo_font_slant_t slant;
1051 cairo_font_weight_t weight;
1052 char family[];
1053 };
1054
1055 struct set_font_size_args {
1056 double size;
1057 };
1058
1059 struct set_line_cap_args {
1060 cairo_line_cap_t line_cap;
1061 };
1062
1063 struct set_line_join_args {
1064 cairo_line_join_t line_join;
1065 };
1066
1067 struct set_line_width_args {
1068 double width;
1069 };
1070
1071 struct set_source_rgba_args {
1072 GdkRGBA color;
1073 };
1074
1075 struct show_text_args {
1076 int len;
1077 char text[];
1078 };
1079
1080 struct transform_args {
1081 cairo_matrix_t matrix;
1082 };
1083
1084 static void
1085 draw(cairo_t *cr, enum cairo_fn op, void *op_args)
1086 {
1087 switch (op) {
1088 case LINE_TO: {
1089 struct move_to_args *args = op_args;
1090
1091 cairo_line_to(cr, args->x, args->y);
1092 break;
1093 }
1094 case REL_LINE_TO: {
1095 struct move_to_args *args = op_args;
1096
1097 cairo_rel_line_to(cr, args->x, args->y);
1098 break;
1099 }
1100 case MOVE_TO: {
1101 struct move_to_args *args = op_args;
1102
1103 cairo_move_to(cr, args->x, args->y);
1104 break;
1105 }
1106 case REL_MOVE_TO: {
1107 struct move_to_args *args = op_args;
1108
1109 cairo_rel_move_to(cr, args->x, args->y);
1110 break;
1111 }
1112 case ARC: {
1113 struct arc_args *args = op_args;
1114
1115 cairo_arc(cr, args->x, args->y, args->radius, args->angle1, args->angle2);
1116 break;
1117 }
1118 case ARC_NEGATIVE: {
1119 struct arc_args *args = op_args;
1120
1121 cairo_arc_negative(cr, args->x, args->y, args->radius, args->angle1, args->angle2);
1122 break;
1123 }
1124 case CURVE_TO: {
1125 struct curve_to_args *args = op_args;
1126
1127 cairo_curve_to(cr, args->x1, args->y1, args->x2, args->y2, args->x3, args->y3);
1128 break;
1129 }
1130 case REL_CURVE_TO: {
1131 struct curve_to_args *args = op_args;
1132
1133 cairo_curve_to(cr, args->x1, args->y1, args->x2, args->y2, args->x3, args->y3);
1134 break;
1135 }
1136 case RECTANGLE: {
1137 struct rectangle_args *args = op_args;
1138
1139 cairo_rectangle(cr, args->x, args->y, args->width, args->height);
1140 break;
1141 }
1142 case CLOSE_PATH:
1143 cairo_close_path(cr);
1144 break;
1145 case SHOW_TEXT: {
1146 struct show_text_args *args = op_args;
1147
1148 cairo_show_text(cr, args->text);
1149 break;
1150 }
1151 case REL_MOVE_FOR: {
1152 cairo_text_extents_t e;
1153 double dx = 0.0, dy = 0.0;
1154 struct rel_move_for_args *args = op_args;
1155
1156 cairo_text_extents(cr, args->text, &e);
1157 switch (args->ref) {
1158 case C: dx = -e.width / 2; dy = e.height / 2; break;
1159 case E: dx = -e.width; dy = e.height / 2; break;
1160 case N: dx = -e.width / 2; dy = e.height; break;
1161 case NE: dx = -e.width; dy = e.height; break;
1162 case NW: dy = e.height; break;
1163 case S: dx = -e.width / 2; break;
1164 case SE: dx = -e.width; break;
1165 case SW: break;
1166 case W: dy = e.height / 2; break;
1167 default: ABORT; break;
1168 }
1169 cairo_rel_move_to(cr, dx, dy);
1170 break;
1171 }
1172 case RESET_CTM:
1173 cairo_identity_matrix(cr);
1174 break;
1175 case STROKE:
1176 cairo_stroke(cr);
1177 break;
1178 case STROKE_PRESERVE:
1179 cairo_stroke_preserve(cr);
1180 break;
1181 case FILL:
1182 cairo_fill(cr);
1183 break;
1184 case FILL_PRESERVE:
1185 cairo_fill_preserve(cr);
1186 break;
1187 case SET_DASH: {
1188 struct set_dash_args *args = op_args;
1189
1190 cairo_set_dash(cr, args->dashes, args->num_dashes, 0);
1191 break;
1192 }
1193 case SET_FONT_FACE: {
1194 struct set_font_face_args *args = op_args;
1195
1196 cairo_select_font_face(cr, args->family, args->slant, args->weight);
1197 break;
1198 }
1199 case SET_FONT_SIZE: {
1200 struct set_font_size_args *args = op_args;
1201
1202 cairo_set_font_size(cr, args->size);
1203 break;
1204 }
1205 case SET_LINE_CAP: {
1206 struct set_line_cap_args *args = op_args;
1207
1208 cairo_set_line_cap(cr, args->line_cap);
1209 break;
1210 }
1211 case SET_LINE_JOIN: {
1212 struct set_line_join_args *args = op_args;
1213
1214 cairo_set_line_join(cr, args->line_join);
1215 break;
1216 }
1217 case SET_LINE_WIDTH: {
1218 struct set_line_width_args *args = op_args;
1219
1220 cairo_set_line_width(cr, args->width);
1221 break;
1222 }
1223 case SET_SOURCE_RGBA: {
1224 struct set_source_rgba_args *args = op_args;
1225
1226 gdk_cairo_set_source_rgba(cr, &args->color);
1227 break;
1228 }
1229 case TRANSFORM: {
1230 struct transform_args *args = op_args;
1231
1232 cairo_transform(cr, &args->matrix);
1233 break;
1234 }
1235 default:
1236 ABORT;
1237 break;
1238 }
1239 }
1240
1241 /*
1242 * Callback that draws on a GtkDrawingArea
1243 */
1244 static gboolean
1245 cb_draw(GtkWidget *widget, cairo_t *cr, gpointer data)
1246 {
1247 struct draw_op *op;
1248
1249 (void) data;
1250 for (op = g_object_get_data(G_OBJECT(widget), "draw_ops");
1251 op != NULL;
1252 op = op->next)
1253 draw(cr, op->op, op->op_args);
1254 return FALSE;
1255 }
1256
1257 \f
1258 /*
1259 * ============================================================
1260 * Manipulating the GUI
1261 * ============================================================
1262 */
1263
1264 /*
1265 * Generic actions that are applicable to most widgets
1266 */
1267
1268 /*
1269 * Simulate user activity on various widgets. Runs inside gtk_main().
1270 */
1271 static void
1272 fake_ui_activity(struct ui_data *ud)
1273 {
1274 char dummy;
1275
1276 if (!GTK_IS_WIDGET(ud->obj) || sscanf(ud->data, " %c", &dummy) > 0)
1277 ign_cmd(ud->type, ud->cmd);
1278 else if (GTK_IS_SPIN_BUTTON(ud->obj)) {
1279 ud->args->txt = "text";
1280 cb_spin_button(GTK_BUILDABLE(ud->obj), ud->args); /* TODO: rename to "value" */
1281 } else if (GTK_IS_SCALE(ud->obj)) {
1282 ud->args->txt = "value";
1283 cb_range(GTK_BUILDABLE(ud->obj), ud->args);
1284 } else if (GTK_IS_ENTRY(ud->obj)) {
1285 ud->args->txt = "text";
1286 cb_editable(GTK_BUILDABLE(ud->obj), ud->args);
1287 } else if (GTK_IS_CALENDAR(ud->obj)) {
1288 ud->args->txt = "clicked";
1289 cb_calendar(GTK_BUILDABLE(ud->obj), ud->args);
1290 } else if (GTK_IS_FILE_CHOOSER_BUTTON(ud->obj)) {
1291 ud->args->txt = "file";
1292 cb_file_chooser_button(GTK_BUILDABLE(ud->obj), ud->args);
1293 } else if (!gtk_widget_activate(GTK_WIDGET(ud->obj)))
1294 ign_cmd(ud->type, ud->cmd);
1295 }
1296
1297 static void
1298 update_focus(struct ui_data *ud){
1299 char dummy;
1300
1301 if (GTK_IS_WIDGET(ud->obj) &&
1302 sscanf(ud->data, " %c", &dummy) < 1 &&
1303 gtk_widget_get_can_focus(GTK_WIDGET(ud->obj)))
1304 gtk_widget_grab_focus(GTK_WIDGET(ud->obj));
1305 else
1306 ign_cmd(ud->type, ud->cmd);
1307 }
1308
1309 /*
1310 * Have the widget say "ping". Runs inside gtk_main().
1311 */
1312 static void
1313 ping(struct ui_data *ud)
1314 {
1315 if (!GTK_IS_WIDGET(ud->obj))
1316 ign_cmd(ud->type, ud->cmd);
1317 ud->args->txt = "ping";
1318 ud->args->data = ud->data;
1319 cb_simple(GTK_BUILDABLE(ud->obj), ud->args);
1320 }
1321
1322 /*
1323 * Write snapshot of widget in an appropriate format to file
1324 */
1325 static void
1326 take_snapshot(struct ui_data *ud)
1327 {
1328 cairo_surface_t *sur = NULL;
1329 cairo_t *cr = NULL;
1330 int height;
1331 int width;
1332
1333 if (!GTK_IS_WIDGET(ud->obj) ||
1334 !gtk_widget_is_drawable(GTK_WIDGET(ud->obj))) {
1335 ign_cmd(ud->type, ud->cmd);
1336 return;
1337 }
1338 height = gtk_widget_get_allocated_height(GTK_WIDGET(ud->obj));
1339 width = gtk_widget_get_allocated_width(GTK_WIDGET(ud->obj));
1340 if (has_suffix(ud->data, ".epsf") || has_suffix(ud->data, ".eps")) {
1341 sur = cairo_ps_surface_create(ud->data, width, height);
1342 cairo_ps_surface_set_eps(sur, TRUE);
1343 } else if (has_suffix(ud->data, ".pdf"))
1344 sur = cairo_pdf_surface_create(ud->data, width, height);
1345 else if (has_suffix(ud->data, ".ps"))
1346 sur = cairo_ps_surface_create(ud->data, width, height);
1347 else if (has_suffix(ud->data, ".svg"))
1348 sur = cairo_svg_surface_create(ud->data, width, height);
1349 else {
1350 ign_cmd(ud->type, ud->cmd);
1351 return;
1352 }
1353 cr = cairo_create(sur);
1354 gtk_widget_draw(GTK_WIDGET(ud->obj), cr);
1355 cairo_destroy(cr);
1356 cairo_surface_destroy(sur);
1357 }
1358
1359 struct handler_id {
1360 unsigned int id; /* returned by g_signal_connect() and friends */
1361 bool blocked; /* we avoid multiple blocking/unblocking */
1362 struct handler_id *next;
1363 };
1364
1365 static void
1366 update_blocked(struct ui_data *ud)
1367 {
1368 char dummy;
1369 struct handler_id *hid;
1370 unsigned long int val;
1371
1372 if (sscanf(ud->data, "%lu %c", &val, &dummy) == 1 && val < 2) {
1373 for (hid = g_object_get_data(ud->obj, "signal-id");
1374 hid != NULL; hid = hid->next) {
1375 if (val == 0 && hid->blocked == true) {
1376 g_signal_handler_unblock(ud->obj, hid->id);
1377 hid->blocked = false;
1378 } else if (val == 1 && hid->blocked == false) {
1379 g_signal_handler_block(ud->obj, hid->id);
1380 hid->blocked = true;
1381 }
1382 }
1383 } else
1384 ign_cmd(ud->type, ud->cmd);
1385 }
1386
1387 static void
1388 update_sensitivity(struct ui_data *ud)
1389 {
1390 char dummy;
1391 unsigned int val;
1392
1393 if (GTK_IS_WIDGET(ud->obj) &&
1394 sscanf(ud->data, "%u %c", &val, &dummy) == 1 && val < 2)
1395 gtk_widget_set_sensitive(GTK_WIDGET(ud->obj), val);
1396 else
1397 ign_cmd(ud->type, ud->cmd);
1398 }
1399
1400 static void
1401 update_size_request(struct ui_data *ud)
1402 {
1403 char dummy;
1404 int x, y;
1405
1406 if (GTK_IS_WIDGET(ud->obj) &&
1407 sscanf(ud->data, "%d %d %c", &x, &y, &dummy) == 2)
1408 gtk_widget_set_size_request(GTK_WIDGET(ud->obj), x, y);
1409 else if (GTK_IS_WIDGET(ud->obj) &&
1410 sscanf(ud->data, " %c", &dummy) < 1)
1411 gtk_widget_set_size_request(GTK_WIDGET(ud->obj), -1, -1);
1412 else
1413 ign_cmd(ud->type, ud->cmd);
1414 }
1415
1416 static void
1417 update_tooltip_text(struct ui_data *ud)
1418 {
1419 if (GTK_IS_WIDGET(ud->obj))
1420 gtk_widget_set_tooltip_text(GTK_WIDGET(ud->obj), ud->data);
1421 else
1422 ign_cmd(ud->type, ud->cmd);
1423 }
1424
1425 static void
1426 update_visibility(struct ui_data *ud)
1427 {
1428 char dummy;
1429 unsigned int val;
1430
1431 if (GTK_IS_WIDGET(ud->obj) &&
1432 sscanf(ud->data, "%u %c", &val, &dummy) == 1 && val < 2)
1433 gtk_widget_set_visible(GTK_WIDGET(ud->obj), val);
1434 else
1435 ign_cmd(ud->type, ud->cmd);
1436 }
1437
1438 /*
1439 * Change the style of the widget passed. Runs inside gtk_main().
1440 */
1441 static void
1442 update_widget_style(struct ui_data *ud)
1443 {
1444 GtkStyleContext *context;
1445 GtkStyleProvider *style_provider;
1446 char *style_decl;
1447 const char *prefix = "* {", *suffix = "}";
1448 size_t sz;
1449
1450 if (!GTK_IS_WIDGET(ud->obj)) {
1451 ign_cmd(ud->type, ud->cmd);
1452 return;
1453 }
1454 style_provider = g_object_get_data(ud->obj, "style_provider");
1455 sz = strlen(prefix) + strlen(suffix) + strlen(ud->data) + 1;
1456 context = gtk_widget_get_style_context(GTK_WIDGET(ud->obj));
1457 gtk_style_context_remove_provider(context, style_provider);
1458 if ((style_decl = malloc(sz)) == NULL)
1459 OOM_ABORT;
1460 strcpy(style_decl, prefix);
1461 strcat(style_decl, ud->data);
1462 strcat(style_decl, suffix);
1463 gtk_style_context_add_provider(context, style_provider,
1464 GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
1465 gtk_css_provider_load_from_data(GTK_CSS_PROVIDER(style_provider),
1466 style_decl, -1, NULL);
1467 free(style_decl);
1468 }
1469
1470 /*
1471 * Check if one of the generic actions is requested; complain if none
1472 * of them is
1473 */
1474 static void
1475 try_generic_cmds(struct ui_data *ud)
1476 {
1477 if (eql(ud->action, "block"))
1478 update_blocked(ud);
1479 else if (eql(ud->action, "set_sensitive"))
1480 update_sensitivity(ud);
1481 else if (eql(ud->action, "set_visible"))
1482 update_visibility(ud);
1483 else if (eql(ud->action, "set_tooltip_text"))
1484 update_tooltip_text(ud);
1485 else if (eql(ud->action, "grab_focus"))
1486 update_focus(ud);
1487 else if (eql(ud->action, "set_size_request"))
1488 update_size_request(ud);
1489 else if (eql(ud->action, "style"))
1490 update_widget_style(ud);
1491 else if (eql(ud->action, "force"))
1492 fake_ui_activity(ud);
1493 else if (eql(ud->action, "ping"))
1494 ping(ud);
1495 else if (eql(ud->action, "snapshot"))
1496 take_snapshot(ud);
1497 else
1498 ign_cmd(ud->type, ud->cmd);
1499 }
1500
1501 /*
1502 * Manipulation of specific widgets
1503 */
1504
1505 static void
1506 update_button(struct ui_data *ud)
1507 {
1508 if (eql(ud->action, "set_label"))
1509 gtk_button_set_label(GTK_BUTTON(ud->obj), ud->data);
1510 else
1511 try_generic_cmds(ud);
1512 }
1513
1514 static void
1515 update_calendar(struct ui_data *ud)
1516 {
1517 GtkCalendar *calendar = GTK_CALENDAR(ud->obj);
1518 char dummy;
1519 int year = 0, month = 0, day = 0;
1520
1521 if (eql(ud->action, "select_date") &&
1522 sscanf(ud->data, "%d-%d-%d %c", &year, &month, &day, &dummy) == 3) {
1523 if (month > -1 && month <= 11 && day > 0 && day <= 31) {
1524 gtk_calendar_select_month(calendar, --month, year);
1525 gtk_calendar_select_day(calendar, day);
1526 } else
1527 ign_cmd(ud->type, ud->cmd);
1528 } else if (eql(ud->action, "mark_day") &&
1529 sscanf(ud->data, "%d %c", &day, &dummy) == 1) {
1530 if (day > 0 && day <= 31)
1531 gtk_calendar_mark_day(calendar, day);
1532 else
1533 ign_cmd(ud->type, ud->cmd);
1534 } else if (eql(ud->action, "clear_marks") && sscanf(ud->data, " %c", &dummy) < 1)
1535 gtk_calendar_clear_marks(calendar);
1536 else
1537 try_generic_cmds(ud);
1538 }
1539
1540 /*
1541 * Common actions for various kinds of window. Return false if
1542 * command is ignored. Runs inside gtk_main().
1543 */
1544 static bool
1545 update_class_window(struct ui_data *ud)
1546 {
1547 GtkWindow *window = GTK_WINDOW(ud->obj);
1548 char dummy;
1549 int x, y;
1550
1551 if (eql(ud->action, "set_title"))
1552 gtk_window_set_title(window, ud->data);
1553 else if (eql(ud->action, "fullscreen") && sscanf(ud->data, " %c", &dummy) < 1)
1554 gtk_window_fullscreen(window);
1555 else if (eql(ud->action, "unfullscreen") && sscanf(ud->data, " %c", &dummy) < 1)
1556 gtk_window_unfullscreen(window);
1557 else if (eql(ud->action, "resize") &&
1558 sscanf(ud->data, "%d %d %c", &x, &y, &dummy) == 2)
1559 gtk_window_resize(window, x, y);
1560 else if (eql(ud->action, "resize") && sscanf(ud->data, " %c", &dummy) < 1) {
1561 gtk_window_get_default_size(window, &x, &y);
1562 gtk_window_resize(window, x, y);
1563 } else if (eql(ud->action, "move") &&
1564 sscanf(ud->data, "%d %d %c", &x, &y, &dummy) == 2)
1565 gtk_window_move(window, x, y);
1566 else
1567 return false;
1568 return true;
1569 }
1570
1571 static void
1572 update_color_button(struct ui_data *ud)
1573 {
1574 GdkRGBA color;
1575
1576 if (eql(ud->action, "set_color")) {
1577 gdk_rgba_parse(&color, ud->data);
1578 gtk_color_chooser_set_rgba(GTK_COLOR_CHOOSER(ud->obj), &color);
1579 } else
1580 try_generic_cmds(ud);
1581 }
1582
1583 static void
1584 update_combo_box_text(struct ui_data *ud)
1585 {
1586 GtkComboBoxText *combobox = GTK_COMBO_BOX_TEXT(ud->obj);
1587 char dummy;
1588 int txt0, pos;
1589
1590 if (eql(ud->action, "prepend_text"))
1591 gtk_combo_box_text_prepend_text(combobox, ud->data);
1592 else if (eql(ud->action, "append_text"))
1593 gtk_combo_box_text_append_text(combobox, ud->data);
1594 else if (eql(ud->action, "remove") &&
1595 sscanf(ud->data, "%d %c", &pos, &dummy) == 1)
1596 gtk_combo_box_text_remove(combobox, pos);
1597 else if (eql(ud->action, "insert_text") &&
1598 sscanf(ud->data, "%d %n", &pos, &txt0) == 1)
1599 gtk_combo_box_text_insert_text(combobox, pos, ud->data + txt0);
1600 else
1601 try_generic_cmds(ud);
1602 }
1603
1604 /*
1605 * update_drawing_area(), which runs inside gtk_main(), maintains a
1606 * list of drawing operations. It needs a few helper functions. It
1607 * is the responsibility of cb_draw() to actually execute the list.
1608 */
1609
1610 enum draw_op_stat {
1611 FAILURE,
1612 SUCCESS,
1613 NEED_REDRAW,
1614 };
1615
1616 /*
1617 * Fill structure *op with the drawing operation according to action
1618 * and with the appropriate set of arguments
1619 */
1620 static enum draw_op_stat
1621 set_draw_op(struct draw_op *op, const char *action, const char *data)
1622 {
1623 char dummy;
1624 const char *raw_args = data;
1625 enum draw_op_stat result = SUCCESS;
1626 int args_start = 0;
1627
1628 if (sscanf(data, "=%llu %n", &op->id, &args_start) == 1) {
1629 op->policy = REPLACE;
1630 result = NEED_REDRAW;
1631 } else if (sscanf(data, "%llu<%llu %n", &op->id, &op->before, &args_start) == 2) {
1632 op->policy = BEFORE;
1633 result = NEED_REDRAW;
1634 } else if (sscanf(data, "%llu %n", &op->id, &args_start) == 1)
1635 op->policy = APPEND;
1636 else
1637 return FAILURE;
1638 raw_args += args_start;
1639 if (eql(action, "line_to")) {
1640 struct move_to_args *args;
1641
1642 if ((args = malloc(sizeof(*args))) == NULL)
1643 OOM_ABORT;
1644 op->op = LINE_TO;
1645 op->op_args = args;
1646 if (sscanf(raw_args, "%lf %lf %c", &args->x, &args->y, &dummy) != 2)
1647 return FAILURE;
1648 } else if (eql(action, "rel_line_to")) {
1649 struct move_to_args *args;
1650
1651 if ((args = malloc(sizeof(*args))) == NULL)
1652 OOM_ABORT;
1653 op->op = REL_LINE_TO;
1654 op->op_args = args;
1655 if (sscanf(raw_args, "%lf %lf %c", &args->x, &args->y, &dummy) != 2)
1656 return FAILURE;
1657 } else if (eql(action, "move_to")) {
1658 struct move_to_args *args;
1659
1660 if ((args = malloc(sizeof(*args))) == NULL)
1661 OOM_ABORT;
1662 op->op = MOVE_TO;
1663 op->op_args = args;
1664 if (sscanf(raw_args, "%lf %lf %c", &args->x, &args->y, &dummy) != 2)
1665 return FAILURE;
1666 } else if (eql(action, "rel_move_to")) {
1667 struct move_to_args *args;
1668
1669 if ((args = malloc(sizeof(*args))) == NULL)
1670 OOM_ABORT;
1671 op->op = REL_MOVE_TO;
1672 op->op_args = args;
1673 if (sscanf(raw_args, "%lf %lf %c", &args->x, &args->y, &dummy) != 2)
1674 return FAILURE;
1675 } else if (eql(action, "arc")) {
1676 struct arc_args *args;
1677 double deg1, deg2;
1678
1679 if ((args = malloc(sizeof(*args))) == NULL)
1680 OOM_ABORT;
1681 op->op = ARC;
1682 op->op_args = args;
1683 if (sscanf(raw_args, "%lf %lf %lf %lf %lf %c",
1684 &args->x, &args->y, &args->radius, &deg1, &deg2, &dummy) != 5)
1685 return FAILURE;
1686 args->angle1 = deg1 * (M_PI / 180.L);
1687 args->angle2 = deg2 * (M_PI / 180.L);
1688 } else if (eql(action, "arc_negative")) {
1689 double deg1, deg2;
1690 struct arc_args *args;
1691
1692 if ((args = malloc(sizeof(*args))) == NULL)
1693 OOM_ABORT;
1694 op->op = ARC_NEGATIVE;
1695 op->op_args = args;
1696 if (sscanf(raw_args, "%lf %lf %lf %lf %lf %c",
1697 &args->x, &args->y, &args->radius, &deg1, &deg2, &dummy) != 5)
1698 return FAILURE;
1699 args->angle1 = deg1 * (M_PI / 180.L);
1700 args->angle2 = deg2 * (M_PI / 180.L);
1701 } else if (eql(action, "curve_to")) {
1702 struct curve_to_args *args;
1703
1704 if ((args = malloc(sizeof(*args))) == NULL)
1705 OOM_ABORT;
1706 op->op = CURVE_TO;
1707 op->op_args = args;
1708 if (sscanf(raw_args, "%lf %lf %lf %lf %lf %lf %c",
1709 &args->x1, &args->y1, &args->x2, &args->y2, &args->x3, &args->y3, &dummy) != 6)
1710 return FAILURE;
1711 } else if (eql(action, "rel_curve_to")) {
1712 struct curve_to_args *args;
1713
1714 if ((args = malloc(sizeof(*args))) == NULL)
1715 OOM_ABORT;
1716 op->op = REL_CURVE_TO;
1717 op->op_args = args;
1718 if (sscanf(raw_args, "%lf %lf %lf %lf %lf %lf %c",
1719 &args->x1, &args->y1, &args->x2, &args->y2, &args->x3, &args->y3, &dummy) != 6)
1720 return FAILURE;
1721 } else if (eql(action, "rectangle")) {
1722 struct rectangle_args *args;
1723
1724 if ((args = malloc(sizeof(*args))) == NULL)
1725 OOM_ABORT;
1726 op->op = RECTANGLE;
1727 op->op_args = args;
1728 if (sscanf(raw_args, "%lf %lf %lf %lf %c",
1729 &args->x, &args->y, &args->width, &args->height, &dummy) != 4)
1730 return FAILURE;
1731 } else if (eql(action, "close_path")) {
1732 op->op = CLOSE_PATH;
1733 if (sscanf(raw_args, " %c", &dummy) > 0)
1734 return FAILURE;
1735 op->op_args = NULL;
1736 } else if (eql(action, "show_text")) {
1737 struct show_text_args *args;
1738 int len;
1739
1740 len = strlen(raw_args) + 1;
1741 if ((args = malloc(sizeof(*args) + len * sizeof(args->text[0]))) == NULL)
1742 OOM_ABORT;
1743 op->op = SHOW_TEXT;
1744 op->op_args = args;
1745 args->len = len; /* not used */
1746 strncpy(args->text, raw_args, len);
1747 result = NEED_REDRAW;
1748 } else if (eql(action, "rel_move_for")) {
1749 char ref_point[2 + 1];
1750 int start, len;
1751 struct rel_move_for_args *args;
1752
1753 if (sscanf(raw_args, "%2s %n", ref_point, &start) < 1)
1754 return FAILURE;
1755 len = strlen(raw_args + start) + 1;
1756 if ((args = malloc(sizeof(*args) + len * sizeof(args->text[0]))) == NULL)
1757 OOM_ABORT;
1758 if (eql(ref_point, "c"))
1759 args->ref = C;
1760 else if (eql(ref_point, "e"))
1761 args->ref = E;
1762 else if (eql(ref_point, "n"))
1763 args->ref = N;
1764 else if (eql(ref_point, "ne"))
1765 args->ref = NE;
1766 else if (eql(ref_point, "nw"))
1767 args->ref = NW;
1768 else if (eql(ref_point, "s"))
1769 args->ref = S;
1770 else if (eql(ref_point, "se"))
1771 args->ref = SE;
1772 else if (eql(ref_point, "sw"))
1773 args->ref = SW;
1774 else if (eql(ref_point, "w"))
1775 args->ref = W;
1776 else
1777 return FAILURE;
1778 op->op = REL_MOVE_FOR;
1779 op->op_args = args;
1780 args->len = len; /* not used */
1781 strncpy(args->text, (raw_args + start), len);
1782 } else if (eql(action, "stroke")) {
1783 op->op = STROKE;
1784 if (sscanf(raw_args, " %c", &dummy) > 0)
1785 return FAILURE;
1786 op->op_args = NULL;
1787 result = NEED_REDRAW;
1788 } else if (eql(action, "stroke_preserve")) {
1789 op->op = STROKE_PRESERVE;
1790 if (sscanf(raw_args, " %c", &dummy) > 0)
1791 return FAILURE;
1792 op->op_args = NULL;
1793 result = NEED_REDRAW;
1794 } else if (eql(action, "fill")) {
1795 op->op = FILL;
1796 if (sscanf(raw_args, " %c", &dummy) > 0)
1797 return FAILURE;
1798 op->op_args = NULL;
1799 result = NEED_REDRAW;
1800 } else if (eql(action, "fill_preserve")) {
1801 op->op = FILL_PRESERVE;
1802 if (sscanf(raw_args, " %c", &dummy) > 0)
1803 return FAILURE;
1804 op->op_args = NULL;
1805 result = NEED_REDRAW;
1806 } else if (eql(action, "set_dash")) {
1807 char *next, *end;
1808 char data1[strlen(raw_args) + 1];
1809 int n, i;
1810 struct set_dash_args *args;
1811
1812 strcpy(data1, raw_args);
1813 next = end = data1;
1814 n = -1;
1815 do {
1816 n++;
1817 next = end;
1818 strtod(next, &end);
1819 } while (next != end);
1820 if ((args = malloc(sizeof(*args) + n * sizeof(args->dashes[0]))) == NULL)
1821 OOM_ABORT;
1822 op->op = SET_DASH;
1823 op->op_args = args;
1824 args->num_dashes = n;
1825 for (i = 0, next = data1; i < n; i++, next = end) {
1826 args->dashes[i] = strtod(next, &end);
1827 }
1828 } else if (eql(action, "set_font_face")) {
1829 char slant[7 + 1]; /* "oblique" */
1830 char weight[6 + 1]; /* "normal" */
1831 int family_start, family_len;
1832 struct set_font_face_args *args;
1833
1834 if (sscanf(raw_args, "%7s %6s %n%*s", slant, weight, &family_start) != 2)
1835 return FAILURE;
1836 family_len = strlen(raw_args + family_start) + 1;
1837 if ((args = malloc(sizeof(*args) + family_len * sizeof(args->family[0]))) == NULL)
1838 OOM_ABORT;
1839 op->op = SET_FONT_FACE;
1840 op->op_args = args;
1841 strncpy(args->family, raw_args + family_start, family_len);
1842 if (eql(slant, "normal"))
1843 args->slant = CAIRO_FONT_SLANT_NORMAL;
1844 else if (eql(slant, "italic"))
1845 args->slant = CAIRO_FONT_SLANT_ITALIC;
1846 else if (eql(slant, "oblique"))
1847 args->slant = CAIRO_FONT_SLANT_OBLIQUE;
1848 else
1849 return FAILURE;
1850 if (eql(weight, "normal"))
1851 args->weight = CAIRO_FONT_WEIGHT_NORMAL;
1852 else if (eql(weight, "bold"))
1853 args->weight = CAIRO_FONT_WEIGHT_BOLD;
1854 else
1855 return FAILURE;
1856 } else if (eql(action, "set_font_size")) {
1857 struct set_font_size_args *args;
1858
1859 if ((args = malloc(sizeof(*args))) == NULL)
1860 OOM_ABORT;
1861 op->op = SET_FONT_SIZE;
1862 op->op_args = args;
1863 if (sscanf(raw_args, "%lf %c", &args->size, &dummy) != 1)
1864 return FAILURE;
1865 } else if (eql(action, "set_line_cap")) {
1866 char str[6 + 1]; /* "square" */
1867 struct set_line_cap_args *args;
1868
1869 if ((args = malloc(sizeof(*args))) == NULL)
1870 OOM_ABORT;
1871 op->op = SET_LINE_CAP;
1872 op->op_args = args;
1873 if (sscanf(raw_args, "%6s %c", str, &dummy) != 1)
1874 return FAILURE;
1875 if (eql(str, "butt"))
1876 args->line_cap = CAIRO_LINE_CAP_BUTT;
1877 else if (eql(str, "round"))
1878 args->line_cap = CAIRO_LINE_CAP_ROUND;
1879 else if (eql(str, "square"))
1880 args->line_cap = CAIRO_LINE_CAP_SQUARE;
1881 else
1882 return FAILURE;
1883 } else if (eql(action, "set_line_join")) {
1884 char str[5 + 1]; /* "miter" */
1885 struct set_line_join_args *args;
1886
1887 if ((args = malloc(sizeof(*args))) == NULL)
1888 OOM_ABORT;
1889 op->op = SET_LINE_JOIN;
1890 op->op_args = args;
1891 if (sscanf(raw_args, "%5s %c", str, &dummy) != 1)
1892 return FAILURE;
1893 if (eql(str, "miter"))
1894 args->line_join = CAIRO_LINE_JOIN_MITER;
1895 else if (eql(str, "round"))
1896 args->line_join = CAIRO_LINE_JOIN_ROUND;
1897 else if (eql(str, "bevel"))
1898 args->line_join = CAIRO_LINE_JOIN_BEVEL;
1899 else
1900 return FAILURE;
1901 } else if (eql(action, "set_line_width")) {
1902 struct set_line_width_args *args;
1903
1904 if ((args = malloc(sizeof(*args))) == NULL)
1905 OOM_ABORT;
1906 op->op = SET_LINE_WIDTH;
1907 op->op_args = args;
1908 if (sscanf(raw_args, "%lf %c", &args->width, &dummy) != 1)
1909 return FAILURE;
1910 } else if (eql(action, "set_source_rgba")) {
1911 struct set_source_rgba_args *args;
1912
1913 if ((args = malloc(sizeof(*args))) == NULL)
1914 OOM_ABORT;
1915 op->op = SET_SOURCE_RGBA;
1916 op->op_args = args;
1917 gdk_rgba_parse(&args->color, raw_args);
1918 } else if (eql(action, "transform")) {
1919 char dummy;
1920 double xx, yx, xy, yy, x0, y0;
1921
1922 if (sscanf(raw_args, "%lf %lf %lf %lf %lf %lf %c",
1923 &xx, &yx, &xy, &yy, &x0, &y0, &dummy) == 6) {
1924 struct transform_args *args;
1925
1926 if ((args = malloc(sizeof(*args))) == NULL)
1927 OOM_ABORT;
1928 op->op_args = args;
1929 op->op = TRANSFORM;
1930 cairo_matrix_init(&args->matrix, xx, yx, xy, yy, x0, y0);
1931 } else if (sscanf(raw_args, " %c", &dummy) < 1) {
1932 op->op = RESET_CTM;
1933 op->op_args = NULL;
1934 } else
1935 return FAILURE;
1936 } else if (eql(action, "translate")) {
1937 double tx, ty;
1938 struct transform_args *args;
1939
1940 if ((args = malloc(sizeof(*args))) == NULL)
1941 OOM_ABORT;
1942 op->op = TRANSFORM;
1943 op->op_args = args;
1944 if (sscanf(raw_args, "%lf %lf %c", &tx, &ty, &dummy) != 2)
1945 return FAILURE;
1946 cairo_matrix_init_translate(&args->matrix, tx, ty);
1947 } else if (eql(action, "scale")) {
1948 double sx, sy;
1949 struct transform_args *args;
1950
1951 if ((args = malloc(sizeof(*args))) == NULL)
1952 OOM_ABORT;
1953 op->op = TRANSFORM;
1954 op->op_args = args;
1955 if (sscanf(raw_args, "%lf %lf %c", &sx, &sy, &dummy) != 2)
1956 return FAILURE;
1957 cairo_matrix_init_scale(&args->matrix, sx, sy);
1958 } else if (eql(action, "rotate")) {
1959 double angle;
1960 struct transform_args *args;
1961
1962 if ((args = malloc(sizeof(*args))) == NULL)
1963 OOM_ABORT;
1964 op->op = TRANSFORM;
1965 op->op_args = args;
1966 if (sscanf(raw_args, "%lf %c", &angle, &dummy) != 1)
1967 return FAILURE;
1968 cairo_matrix_init_rotate(&args->matrix, angle * (M_PI / 180.L));
1969 } else
1970 return FAILURE;
1971 return result;
1972 }
1973
1974 /*
1975 * Add another element to widget's "draw_ops" list
1976 */
1977 static enum draw_op_stat
1978 ins_draw_op(GObject *widget, const char *action, const char *data)
1979 {
1980 enum draw_op_stat result;
1981 struct draw_op *new_op = NULL, *draw_ops = NULL, *prev_op = NULL;
1982
1983 if ((new_op = malloc(sizeof(*new_op))) == NULL)
1984 OOM_ABORT;
1985 new_op->op_args = NULL;
1986 new_op->next = NULL;
1987 if ((result = set_draw_op(new_op, action, data)) == FAILURE) {
1988 free(new_op->op_args);
1989 free(new_op);
1990 return FAILURE;
1991 }
1992 switch (new_op->policy) {
1993 case APPEND:
1994 if ((draw_ops = g_object_get_data(widget, "draw_ops")) == NULL)
1995 g_object_set_data(widget, "draw_ops", new_op);
1996 else {
1997 for (prev_op = draw_ops;
1998 prev_op->next != NULL;
1999 prev_op = prev_op->next);
2000 prev_op->next = new_op;
2001 }
2002 break;
2003 case BEFORE:
2004 for (prev_op = NULL, draw_ops = g_object_get_data(widget, "draw_ops");
2005 draw_ops != NULL && draw_ops->id != new_op->before;
2006 prev_op = draw_ops, draw_ops = draw_ops->next);
2007 if (prev_op == NULL) { /* prepend a new first element */
2008 g_object_set_data(widget, "draw_ops", new_op);
2009 new_op->next = draw_ops;
2010 } else if (draw_ops == NULL) /* append */
2011 prev_op->next = new_op;
2012 else { /* insert */
2013 new_op->next = draw_ops;
2014 prev_op->next = new_op;
2015 }
2016 break;
2017 case REPLACE:
2018 for (prev_op = NULL, draw_ops = g_object_get_data(widget, "draw_ops");
2019 draw_ops != NULL && draw_ops->id != new_op->id;
2020 prev_op = draw_ops, draw_ops = draw_ops->next);
2021 if (draw_ops == NULL && prev_op == NULL) /* start a new list */
2022 g_object_set_data(widget, "draw_ops", new_op);
2023 else if (prev_op == NULL) { /* replace the first element */
2024 g_object_set_data(widget, "draw_ops", new_op);
2025 new_op->next = draw_ops->next;
2026 free(draw_ops->op_args);
2027 free(draw_ops);
2028 } else if (draw_ops == NULL) /* append */
2029 prev_op->next = new_op;
2030 else { /* replace some other element */
2031 new_op->next = draw_ops->next;
2032 prev_op->next = new_op;
2033 free(draw_ops->op_args);
2034 free(draw_ops);
2035 }
2036 break;
2037 default:
2038 ABORT;
2039 break;
2040 }
2041 return result;
2042 }
2043
2044 /*
2045 * Remove all elements with the given id from widget's "draw_ops" list
2046 */
2047 static enum draw_op_stat
2048 rem_draw_op(GObject *widget, const char *data)
2049 {
2050 char dummy;
2051 struct draw_op *op, *next_op, *prev_op = NULL;
2052 unsigned long long int id;
2053
2054 if (sscanf(data, "%llu %c", &id, &dummy) != 1)
2055 return FAILURE;
2056 op = g_object_get_data(widget, "draw_ops");
2057 while (op != NULL) {
2058 next_op = op->next;
2059 if (op->id == id) {
2060 if (prev_op == NULL) /* list head */
2061 g_object_set_data(widget, "draw_ops", op->next);
2062 else
2063 prev_op->next = op->next;
2064 free(op->op_args);
2065 free(op);
2066 } else
2067 prev_op = op;
2068 op = next_op;
2069 }
2070 return NEED_REDRAW;
2071 }
2072
2073 static gboolean
2074 refresh_widget(GtkWidget *widget)
2075 {
2076 gint height = gtk_widget_get_allocated_height(widget);
2077 gint width = gtk_widget_get_allocated_width(widget);
2078
2079 gtk_widget_queue_draw_area(widget, 0, 0, width, height);
2080 return G_SOURCE_REMOVE;
2081 }
2082
2083 static void
2084 update_drawing_area(struct ui_data *ud)
2085 {
2086 enum draw_op_stat dost;
2087
2088 if (eql(ud->action, "remove"))
2089 dost = rem_draw_op(ud->obj, ud->data);
2090 else
2091 dost = ins_draw_op(ud->obj, ud->action, ud->data);
2092 switch (dost) {
2093 case NEED_REDRAW:
2094 gdk_threads_add_idle_full(G_PRIORITY_LOW,
2095 (GSourceFunc) refresh_widget,
2096 GTK_WIDGET(ud->obj), NULL);
2097 break;
2098 case FAILURE:
2099 try_generic_cmds(ud);
2100 break;
2101 case SUCCESS:
2102 break;
2103 default:
2104 ABORT;
2105 break;
2106 }
2107 }
2108
2109 static void
2110 update_entry(struct ui_data *ud)
2111 {
2112 GtkEntry *entry = GTK_ENTRY(ud->obj);
2113
2114 if (eql(ud->action, "set_text"))
2115 gtk_entry_set_text(entry, ud->data);
2116 else if (eql(ud->action, "set_placeholder_text"))
2117 gtk_entry_set_placeholder_text(entry, ud->data);
2118 else
2119 try_generic_cmds(ud);
2120 }
2121
2122 static void
2123 update_expander(struct ui_data *ud)
2124 {
2125 GtkExpander *expander = GTK_EXPANDER(ud->obj);
2126 char dummy;
2127 unsigned int val;
2128
2129 if (eql(ud->action, "set_expanded") &&
2130 sscanf(ud->data, "%u %c", &val, &dummy) == 1 && val < 2)
2131 gtk_expander_set_expanded(expander, val);
2132 else if (eql(ud->action, "set_label"))
2133 gtk_expander_set_label(expander, ud->data);
2134 else
2135 try_generic_cmds(ud);
2136 }
2137
2138 static void
2139 update_file_chooser_button(struct ui_data *ud)
2140 {
2141 if (eql(ud->action, "set_filename"))
2142 gtk_file_chooser_set_filename(GTK_FILE_CHOOSER(ud->obj), ud->data);
2143 else
2144 try_generic_cmds(ud);
2145 }
2146
2147 static void
2148 update_file_chooser_dialog(struct ui_data *ud)
2149 {
2150 GtkFileChooser *chooser = GTK_FILE_CHOOSER(ud->obj);
2151
2152 if (eql(ud->action, "set_filename"))
2153 gtk_file_chooser_set_filename(chooser, ud->data);
2154 else if (eql(ud->action, "set_current_name"))
2155 gtk_file_chooser_set_current_name(chooser, ud->data);
2156 else if (update_class_window(ud));
2157 else
2158 try_generic_cmds(ud);
2159 }
2160
2161 static void
2162 update_font_button(struct ui_data *ud){
2163 GtkFontButton *font_button = GTK_FONT_BUTTON(ud->obj);
2164
2165 if (eql(ud->action, "set_font_name"))
2166 gtk_font_button_set_font_name(font_button, ud->data);
2167 else
2168 try_generic_cmds(ud);
2169 }
2170
2171 static void
2172 update_frame(struct ui_data *ud)
2173 {
2174 if (eql(ud->action, "set_label"))
2175 gtk_frame_set_label(GTK_FRAME(ud->obj), ud->data);
2176 else
2177 try_generic_cmds(ud);
2178 }
2179
2180 static void
2181 update_image(struct ui_data *ud)
2182 {
2183 GtkIconSize size;
2184 GtkImage *image = GTK_IMAGE(ud->obj);
2185
2186 gtk_image_get_icon_name(image, NULL, &size);
2187 if (eql(ud->action, "set_from_file"))
2188 gtk_image_set_from_file(image, ud->data);
2189 else if (eql(ud->action, "set_from_icon_name"))
2190 gtk_image_set_from_icon_name(image, ud->data, size);
2191 else
2192 try_generic_cmds(ud);
2193 }
2194
2195 static void
2196 update_label(struct ui_data *ud)
2197 {
2198 if (eql(ud->action, "set_text"))
2199 gtk_label_set_text(GTK_LABEL(ud->obj), ud->data);
2200 else
2201 try_generic_cmds(ud);
2202 }
2203
2204 static void
2205 update_link_button(struct ui_data *ud)
2206 {
2207 char dummy;
2208 unsigned int val;
2209
2210 if (eql(ud->action, "set_visited") &&
2211 sscanf(ud->data, "%u %c", &val, &dummy) == 1 && val < 2)
2212 gtk_link_button_set_visited(GTK_LINK_BUTTON(ud->obj), val);
2213 else
2214 update_button(ud);
2215 }
2216
2217 static void
2218 update_menu(struct ui_data *ud)
2219 {
2220 char dummy;
2221 GtkMenu* menu = GTK_MENU(ud->obj);
2222
2223 if (eql(ud->action, "popup") && sscanf(ud->data, " %c", &dummy) < 1)
2224 gtk_menu_popup(menu, NULL, NULL, NULL, NULL, 0,
2225 gtk_get_current_event_time());
2226 else if (eql(ud->action, "popdown") && sscanf(ud->data, " %c", &dummy) < 1)
2227 gtk_menu_popdown(menu);
2228 else
2229 try_generic_cmds(ud);
2230 }
2231
2232 static void
2233 update_menu_item(struct ui_data *ud)
2234 {
2235 try_generic_cmds(ud);
2236 }
2237
2238 static void
2239 update_notebook(struct ui_data *ud)
2240 {
2241 char dummy;
2242 int val, n_pages = gtk_notebook_get_n_pages(GTK_NOTEBOOK(ud->obj));
2243
2244 if (eql(ud->action, "set_current_page") &&
2245 sscanf(ud->data, "%d %c", &val, &dummy) == 1 &&
2246 val >= 0 && val < n_pages)
2247 gtk_notebook_set_current_page(GTK_NOTEBOOK(ud->obj), val);
2248 else
2249 try_generic_cmds(ud);
2250 }
2251
2252 static void
2253 update_nothing(struct ui_data *ud)
2254 {
2255 (void) ud;
2256 }
2257
2258 static void
2259 update_print_dialog(struct ui_data *ud)
2260 {
2261 GtkPageSetup *page_setup;
2262 GtkPrintJob *job;
2263 GtkPrintSettings *settings;
2264 GtkPrintUnixDialog *dialog = GTK_PRINT_UNIX_DIALOG(ud->obj);
2265 GtkPrinter *printer;
2266 gint response_id;
2267
2268 if (eql(ud->action, "print")) {
2269 response_id = gtk_dialog_run(GTK_DIALOG(dialog));
2270 switch (response_id) {
2271 case GTK_RESPONSE_OK:
2272 printer = gtk_print_unix_dialog_get_selected_printer(dialog);
2273 settings = gtk_print_unix_dialog_get_settings(dialog);
2274 page_setup = gtk_print_unix_dialog_get_page_setup(dialog);
2275 job = gtk_print_job_new(ud->data, printer, settings, page_setup);
2276 if (gtk_print_job_set_source_file(job, ud->data, NULL))
2277 gtk_print_job_send(job, NULL, NULL, NULL);
2278 else
2279 ign_cmd(ud->type, ud->cmd);
2280 g_clear_object(&settings);
2281 g_clear_object(&job);
2282 break;
2283 case GTK_RESPONSE_CANCEL:
2284 case GTK_RESPONSE_DELETE_EVENT:
2285 break;
2286 default:
2287 fprintf(stderr, "%s sent an unexpected response id (%d)\n",
2288 widget_id(GTK_BUILDABLE(dialog)), response_id);
2289 break;
2290 }
2291 gtk_widget_hide(GTK_WIDGET(dialog));
2292 } else
2293 try_generic_cmds(ud);
2294 }
2295
2296 static void
2297 update_progress_bar(struct ui_data *ud)
2298 {
2299 GtkProgressBar *progressbar = GTK_PROGRESS_BAR(ud->obj);
2300 char dummy;
2301 double frac;
2302
2303 if (eql(ud->action, "set_text"))
2304 gtk_progress_bar_set_text(progressbar, *(ud->data) == '\0' ? NULL : ud->data);
2305 else if (eql(ud->action, "set_fraction") &&
2306 sscanf(ud->data, "%lf %c", &frac, &dummy) == 1)
2307 gtk_progress_bar_set_fraction(progressbar, frac);
2308 else
2309 try_generic_cmds(ud);
2310 }
2311
2312 static void
2313 update_scale(struct ui_data *ud)
2314 {
2315 GtkRange *range = GTK_RANGE(ud->obj);
2316 char dummy;
2317 double val1, val2;
2318
2319 if (eql(ud->action, "set_value") && sscanf(ud->data, "%lf %c", &val1, &dummy) == 1)
2320 gtk_range_set_value(range, val1);
2321 else if (eql(ud->action, "set_fill_level") &&
2322 sscanf(ud->data, "%lf %c", &val1, &dummy) == 1) {
2323 gtk_range_set_fill_level(range, val1);
2324 gtk_range_set_show_fill_level(range, TRUE);
2325 } else if (eql(ud->action, "set_fill_level") &&
2326 sscanf(ud->data, " %c", &dummy) < 1)
2327 gtk_range_set_show_fill_level(range, FALSE);
2328 else if (eql(ud->action, "set_range") &&
2329 sscanf(ud->data, "%lf %lf %c", &val1, &val2, &dummy) == 2)
2330 gtk_range_set_range(range, val1, val2);
2331 else if (eql(ud->action, "set_increments") &&
2332 sscanf(ud->data, "%lf %lf %c", &val1, &val2, &dummy) == 2)
2333 gtk_range_set_increments(range, val1, val2);
2334 else
2335 try_generic_cmds(ud);
2336 }
2337
2338 static void
2339 update_scrolled_window(struct ui_data *ud)
2340 {
2341 GtkScrolledWindow *window = GTK_SCROLLED_WINDOW(ud->obj);
2342 GtkAdjustment *hadj = gtk_scrolled_window_get_hadjustment(window);
2343 GtkAdjustment *vadj = gtk_scrolled_window_get_vadjustment(window);
2344 char dummy;
2345 double d0, d1;
2346
2347 if (eql(ud->action, "hscroll") && sscanf(ud->data, "%lf %c", &d0, &dummy) == 1)
2348 gtk_adjustment_set_value(hadj, d0);
2349 else if (eql(ud->action, "vscroll") && sscanf(ud->data, "%lf %c", &d0, &dummy) == 1)
2350 gtk_adjustment_set_value(vadj, d0);
2351 else if (eql(ud->action, "hscroll_to_range") &&
2352 sscanf(ud->data, "%lf %lf %c", &d0, &d1, &dummy) == 2)
2353 gtk_adjustment_clamp_page(hadj, d0, d1);
2354 else if (eql(ud->action, "vscroll_to_range") &&
2355 sscanf(ud->data, "%lf %lf %c", &d0, &d1, &dummy) == 2)
2356 gtk_adjustment_clamp_page(vadj, d0, d1);
2357 else
2358 try_generic_cmds(ud);
2359 }
2360
2361 static void
2362 update_socket(struct ui_data *ud)
2363 {
2364 GtkSocket *socket = GTK_SOCKET(ud->obj);
2365 Window id;
2366 char str[BUFLEN], dummy;
2367
2368 if (eql(ud->action, "id") && sscanf(ud->data, " %c", &dummy) < 1) {
2369 id = gtk_socket_get_id(socket);
2370 snprintf(str, BUFLEN, "%lu", id);
2371 send_msg(ud->args->fout, GTK_BUILDABLE(socket), "id", str, NULL);
2372 } else
2373 try_generic_cmds(ud);
2374 }
2375
2376 static void
2377 update_spin_button(struct ui_data *ud)
2378 {
2379 GtkSpinButton *spinbutton = GTK_SPIN_BUTTON(ud->obj);
2380 char dummy;
2381 double val1, val2;
2382
2383 if (eql(ud->action, "set_text") && /* TODO: rename to "set_value" */
2384 sscanf(ud->data, "%lf %c", &val1, &dummy) == 1)
2385 gtk_spin_button_set_value(spinbutton, val1);
2386 else if (eql(ud->action, "set_range") &&
2387 sscanf(ud->data, "%lf %lf %c", &val1, &val2, &dummy) == 2)
2388 gtk_spin_button_set_range(spinbutton, val1, val2);
2389 else if (eql(ud->action, "set_increments") &&
2390 sscanf(ud->data, "%lf %lf %c", &val1, &val2, &dummy) == 2)
2391 gtk_spin_button_set_increments(spinbutton, val1, val2);
2392 else
2393 try_generic_cmds(ud);
2394 }
2395
2396 static void
2397 update_spinner(struct ui_data *ud)
2398 {
2399 GtkSpinner *spinner = GTK_SPINNER(ud->obj);
2400 char dummy;
2401
2402 if (eql(ud->action, "start") && sscanf(ud->data, " %c", &dummy) < 1)
2403 gtk_spinner_start(spinner);
2404 else if (eql(ud->action, "stop") && sscanf(ud->data, " %c", &dummy) < 1)
2405 gtk_spinner_stop(spinner);
2406 else
2407 try_generic_cmds(ud);
2408 }
2409
2410 static void
2411 update_statusbar(struct ui_data *ud)
2412 {
2413 GtkStatusbar *statusbar = GTK_STATUSBAR(ud->obj);
2414 char *ctx_msg, dummy;
2415 const char *status_msg;
2416 int ctx_len, t;
2417
2418 /* TODO: remove "push", "pop", "remove_all"; rename "push_id" to "push", etc. */
2419 if ((ctx_msg = malloc(strlen(ud->data) + 1)) == NULL)
2420 OOM_ABORT;
2421 t = sscanf(ud->data, "%s %n%c", ctx_msg, &ctx_len, &dummy);
2422 status_msg = ud->data + ctx_len;
2423 if (eql(ud->action, "push"))
2424 gtk_statusbar_push(statusbar,
2425 gtk_statusbar_get_context_id(statusbar, "0"),
2426 ud->data);
2427 else if (eql(ud->action, "push_id") && t >= 1)
2428 gtk_statusbar_push(statusbar,
2429 gtk_statusbar_get_context_id(statusbar, ctx_msg),
2430 status_msg);
2431 else if (eql(ud->action, "pop") && t < 1)
2432 gtk_statusbar_pop(statusbar,
2433 gtk_statusbar_get_context_id(statusbar, "0"));
2434 else if (eql(ud->action, "pop_id") && t == 1)
2435 gtk_statusbar_pop(statusbar,
2436 gtk_statusbar_get_context_id(statusbar, ctx_msg));
2437 else if (eql(ud->action, "remove_all") && t < 1)
2438 gtk_statusbar_remove_all(statusbar,
2439 gtk_statusbar_get_context_id(statusbar, "0"));
2440 else if (eql(ud->action, "remove_all_id") && t == 1)
2441 gtk_statusbar_remove_all(statusbar,
2442 gtk_statusbar_get_context_id(statusbar, ctx_msg));
2443 else
2444 try_generic_cmds(ud);
2445 free(ctx_msg);
2446 }
2447
2448 static void
2449 update_switch(struct ui_data *ud)
2450 {
2451 char dummy;
2452 unsigned int val;
2453
2454 if (eql(ud->action, "set_active") &&
2455 sscanf(ud->data, "%u %c", &val, &dummy) == 1 && val < 2)
2456 gtk_switch_set_active(GTK_SWITCH(ud->obj), val);
2457 else
2458 try_generic_cmds(ud);
2459 }
2460
2461 static void
2462 update_text_view(struct ui_data *ud)
2463 {
2464 FILE *sv;
2465 GtkTextView *view = GTK_TEXT_VIEW(ud->obj);
2466 GtkTextBuffer *textbuf = gtk_text_view_get_buffer(view);
2467 GtkTextIter a, b;
2468 char dummy;
2469 int val;
2470
2471 if (eql(ud->action, "set_text"))
2472 gtk_text_buffer_set_text(textbuf, ud->data, -1);
2473 else if (eql(ud->action, "delete") && sscanf(ud->data, " %c", &dummy) < 1) {
2474 gtk_text_buffer_get_bounds(textbuf, &a, &b);
2475 gtk_text_buffer_delete(textbuf, &a, &b);
2476 } else if (eql(ud->action, "insert_at_cursor"))
2477 gtk_text_buffer_insert_at_cursor(textbuf, ud->data, -1);
2478 else if (eql(ud->action, "place_cursor") && eql(ud->data, "end")) {
2479 gtk_text_buffer_get_end_iter(textbuf, &a);
2480 gtk_text_buffer_place_cursor(textbuf, &a);
2481 } else if (eql(ud->action, "place_cursor") &&
2482 sscanf(ud->data, "%d %c", &val, &dummy) == 1) {
2483 gtk_text_buffer_get_iter_at_offset(textbuf, &a, val);
2484 gtk_text_buffer_place_cursor(textbuf, &a);
2485 } else if (eql(ud->action, "place_cursor_at_line") &&
2486 sscanf(ud->data, "%d %c", &val, &dummy) == 1) {
2487 gtk_text_buffer_get_iter_at_line(textbuf, &a, val);
2488 gtk_text_buffer_place_cursor(textbuf, &a);
2489 } else if (eql(ud->action, "scroll_to_cursor") &&
2490 sscanf(ud->data, " %c", &dummy) < 1)
2491 gtk_text_view_scroll_to_mark(view, gtk_text_buffer_get_insert(textbuf),
2492 0., 0, 0., 0.);
2493 else if (eql(ud->action, "save") && ud->data != NULL &&
2494 (sv = fopen(ud->data, "w")) != NULL) {
2495 gtk_text_buffer_get_bounds(textbuf, &a, &b);
2496 send_msg(sv, GTK_BUILDABLE(view), "insert_at_cursor",
2497 gtk_text_buffer_get_text(textbuf, &a, &b, TRUE), NULL);
2498 fclose(sv);
2499 } else
2500 try_generic_cmds(ud);
2501 }
2502
2503 static void
2504 update_toggle_button(struct ui_data *ud)
2505 {
2506 char dummy;
2507 unsigned int val;
2508
2509 if (eql(ud->action, "set_label"))
2510 gtk_button_set_label(GTK_BUTTON(ud->obj), ud->data);
2511 else if (eql(ud->action, "set_active") &&
2512 sscanf(ud->data, "%u %c", &val, &dummy) == 1 && val < 2)
2513 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(ud->obj), val);
2514 else
2515 try_generic_cmds(ud);
2516 }
2517
2518 /*
2519 * update_tree_view(), which runs inside gtk_main(), needs a few
2520 * helper functions
2521 */
2522
2523 /*
2524 * Check if s is a valid string representation of a GtkTreePath
2525 */
2526 static bool
2527 is_path_string(char *s)
2528 {
2529 return s != NULL &&
2530 strlen(s) == strspn(s, ":0123456789") &&
2531 strstr(s, "::") == NULL &&
2532 strcspn(s, ":") > 0;
2533 }
2534
2535 static void
2536 tree_model_insert_before(GtkTreeModel *model, GtkTreeIter *iter,
2537 GtkTreeIter *parent, GtkTreeIter *sibling)
2538 {
2539 if (GTK_IS_TREE_STORE(model))
2540 gtk_tree_store_insert_before(GTK_TREE_STORE(model),
2541 iter, parent, sibling);
2542 else if (GTK_IS_LIST_STORE(model))
2543 gtk_list_store_insert_before(GTK_LIST_STORE(model),
2544 iter, sibling);
2545 else
2546 ABORT;
2547 }
2548
2549 static void
2550 tree_model_insert_after(GtkTreeModel *model, GtkTreeIter *iter,
2551 GtkTreeIter *parent, GtkTreeIter *sibling)
2552 {
2553 if (GTK_IS_TREE_STORE(model))
2554 gtk_tree_store_insert_after(GTK_TREE_STORE(model),
2555 iter, parent, sibling);
2556 else if (GTK_IS_LIST_STORE(model))
2557 gtk_list_store_insert_after(GTK_LIST_STORE(model),
2558 iter, sibling);
2559 else
2560 ABORT;
2561 }
2562
2563 static void
2564 tree_model_move_before(GtkTreeModel *model, GtkTreeIter *iter,
2565 GtkTreeIter *position)
2566 {
2567 if (GTK_IS_TREE_STORE(model))
2568 gtk_tree_store_move_before(GTK_TREE_STORE(model), iter, position);
2569 else if (GTK_IS_LIST_STORE(model))
2570 gtk_list_store_move_before(GTK_LIST_STORE(model), iter, position);
2571 else
2572 ABORT;
2573 }
2574
2575 static void
2576 tree_model_remove(GtkTreeModel *model, GtkTreeIter *iter)
2577 {
2578 if (GTK_IS_TREE_STORE(model))
2579 gtk_tree_store_remove(GTK_TREE_STORE(model), iter);
2580 else if (GTK_IS_LIST_STORE(model))
2581 gtk_list_store_remove(GTK_LIST_STORE(model), iter);
2582 else
2583 ABORT;
2584 }
2585
2586 static void
2587 tree_model_clear(GtkTreeModel *model)
2588 {
2589 if (GTK_IS_TREE_STORE(model))
2590 gtk_tree_store_clear(GTK_TREE_STORE(model));
2591 else if (GTK_IS_LIST_STORE(model))
2592 gtk_list_store_clear(GTK_LIST_STORE(model));
2593 else
2594 ABORT;
2595 }
2596
2597 static void
2598 tree_model_set(GtkTreeModel *model, GtkTreeIter *iter, ...)
2599 {
2600 va_list ap;
2601
2602 va_start(ap, iter);
2603 if (GTK_IS_TREE_STORE(model))
2604 gtk_tree_store_set_valist(GTK_TREE_STORE(model), iter, ap);
2605 else if (GTK_IS_LIST_STORE(model))
2606 gtk_list_store_set_valist(GTK_LIST_STORE(model), iter, ap);
2607 else
2608 ABORT;
2609 va_end(ap);
2610 }
2611
2612 /*
2613 * Create an empty row at path if it doesn't yet exist. Create older
2614 * siblings and parents as necessary.
2615 */
2616 static void
2617 create_subtree(GtkTreeModel *model, GtkTreePath *path, GtkTreeIter *iter)
2618 {
2619 GtkTreeIter iter_1; /* iter's predecessor */
2620 GtkTreePath *path_1; /* path's predecessor */
2621
2622 if (gtk_tree_path_get_depth(path) > 0 &&
2623 gtk_tree_model_get_iter(model, iter, path))
2624 return;
2625 path_1 = gtk_tree_path_copy(path);
2626 if (gtk_tree_path_prev(path_1)) { /* need an older sibling */
2627 create_subtree(model, path_1, iter);
2628 iter_1 = *iter;
2629 tree_model_insert_after(model, iter, NULL, &iter_1);
2630 } else if (gtk_tree_path_up(path_1)) { /* need a parent */
2631 create_subtree(model, path_1, iter);
2632 if (gtk_tree_path_get_depth(path_1) == 0)
2633 /* first toplevel row */
2634 tree_model_insert_after(model, iter, NULL, NULL);
2635 else { /* first row in a lower level */
2636 iter_1 = *iter;
2637 tree_model_insert_after(model, iter, &iter_1, NULL);
2638 }
2639 } /* neither prev nor up mean we're at the root of an empty tree */
2640 gtk_tree_path_free(path_1);
2641 }
2642
2643 static bool
2644 set_tree_view_cell(GtkTreeModel *model, GtkTreeIter *iter,
2645 const char *path_s, int col, const char *new_text)
2646 {
2647 GType col_type = gtk_tree_model_get_column_type(model, col);
2648 GtkTreePath *path;
2649 bool ok = false;
2650 char dummy;
2651 double d;
2652 long long int n;
2653
2654 path = gtk_tree_path_new_from_string(path_s);
2655 switch (col_type) {
2656 case G_TYPE_BOOLEAN:
2657 case G_TYPE_INT:
2658 case G_TYPE_LONG:
2659 case G_TYPE_INT64:
2660 case G_TYPE_UINT:
2661 case G_TYPE_ULONG:
2662 case G_TYPE_UINT64:
2663 if (new_text != NULL &&
2664 sscanf(new_text, "%lld %c", &n, &dummy) == 1) {
2665 create_subtree(model, path, iter);
2666 tree_model_set(model, iter, col, n, -1);
2667 ok = true;
2668 }
2669 break;
2670 case G_TYPE_FLOAT:
2671 case G_TYPE_DOUBLE:
2672 if (new_text != NULL &&
2673 sscanf(new_text, "%lf %c", &d, &dummy) == 1) {
2674 create_subtree(model, path, iter);
2675 tree_model_set(model, iter, col, d, -1);
2676 ok = true;
2677 }
2678 break;
2679 case G_TYPE_STRING:
2680 create_subtree(model, path, iter);
2681 tree_model_set(model, iter, col, new_text, -1);
2682 ok = true;
2683 break;
2684 default:
2685 fprintf(stderr, "column %d: %s not implemented\n",
2686 col, g_type_name(col_type));
2687 ok = true;
2688 break;
2689 }
2690 gtk_tree_path_free(path);
2691 return ok;
2692 }
2693
2694 static void
2695 tree_view_set_cursor(GtkTreeView *view, GtkTreePath *path, GtkTreeViewColumn *col)
2696 {
2697 /* GTK+ 3.14 requires this. For 3.18, path = NULL */
2698 /* is just fine and this function need not exist. */
2699 if (path == NULL)
2700 path = gtk_tree_path_new();
2701 gtk_tree_view_set_cursor(view, path, col, false);
2702 }
2703
2704 static void
2705 update_tree_view(struct ui_data *ud)
2706 {
2707 GtkTreeView *view = GTK_TREE_VIEW(ud->obj);
2708 GtkTreeIter iter0, iter1;
2709 GtkTreeModel *model = gtk_tree_view_get_model(view);
2710 GtkTreePath *path = NULL;
2711 GtkTreeSelection *sel = gtk_tree_view_get_selection(view);
2712 bool iter0_valid, iter1_valid;
2713 char *tokens, *arg0, *arg1, *arg2;
2714 int col = -1; /* invalid column number */
2715 struct info ar;
2716
2717 if (!GTK_IS_LIST_STORE(model) && !GTK_IS_TREE_STORE(model))
2718 {
2719 fprintf(stderr, "missing model/");
2720 ign_cmd(ud->type, ud->cmd);
2721 return;
2722 }
2723 if ((tokens = malloc(strlen(ud->data) + 1)) == NULL)
2724 OOM_ABORT;
2725 strcpy(tokens, ud->data);
2726 arg0 = strtok(tokens, WHITESPACE);
2727 arg1 = strtok(NULL, WHITESPACE);
2728 arg2 = strtok(NULL, "");
2729 iter0_valid = is_path_string(arg0) &&
2730 gtk_tree_model_get_iter_from_string(model, &iter0, arg0);
2731 iter1_valid = is_path_string(arg1) &&
2732 gtk_tree_model_get_iter_from_string(model, &iter1, arg1);
2733 if (is_path_string(arg1))
2734 col = strtol(arg1, NULL, 10);
2735 if (eql(ud->action, "set") &&
2736 col > -1 &&
2737 col < gtk_tree_model_get_n_columns(model) &&
2738 is_path_string(arg0)) {
2739 if (set_tree_view_cell(model, &iter0, arg0, col, arg2) == false)
2740 ign_cmd(ud->type, ud->cmd);
2741 } else if (eql(ud->action, "scroll") && iter0_valid && iter1_valid &&
2742 arg2 == NULL) {
2743 path = gtk_tree_path_new_from_string(arg0);
2744 gtk_tree_view_scroll_to_cell (view,
2745 path,
2746 gtk_tree_view_get_column(view, col),
2747 0, 0., 0.);
2748 } else if (eql(ud->action, "expand") && iter0_valid && arg1 == NULL) {
2749 path = gtk_tree_path_new_from_string(arg0);
2750 gtk_tree_view_expand_row(view, path, false);
2751 } else if (eql(ud->action, "expand_all") && iter0_valid && arg1 == NULL) {
2752 path = gtk_tree_path_new_from_string(arg0);
2753 gtk_tree_view_expand_row(view, path, true);
2754 } else if (eql(ud->action, "expand_all") && arg0 == NULL)
2755 gtk_tree_view_expand_all(view);
2756 else if (eql(ud->action, "collapse") && iter0_valid && arg1 == NULL) {
2757 path = gtk_tree_path_new_from_string(arg0);
2758 gtk_tree_view_collapse_row(view, path);
2759 } else if (eql(ud->action, "collapse") && arg0 == NULL)
2760 gtk_tree_view_collapse_all(view);
2761 else if (eql(ud->action, "set_cursor") && iter0_valid && arg1 == NULL) {
2762 path = gtk_tree_path_new_from_string(arg0);
2763 tree_view_set_cursor(view, path, NULL);
2764 } else if (eql(ud->action, "set_cursor") && arg0 == NULL) {
2765 tree_view_set_cursor(view, NULL, NULL);
2766 gtk_tree_selection_unselect_all(sel);
2767 } else if (eql(ud->action, "insert_row") &&
2768 eql(arg0, "end") && arg1 == NULL)
2769 tree_model_insert_before(model, &iter1, NULL, NULL);
2770 else if (eql(ud->action, "insert_row") && iter0_valid &&
2771 eql(arg1, "as_child") && arg2 == NULL)
2772 tree_model_insert_after(model, &iter1, &iter0, NULL);
2773 else if (eql(ud->action, "insert_row") && iter0_valid && arg1 == NULL)
2774 tree_model_insert_before(model, &iter1, NULL, &iter0);
2775 else if (eql(ud->action, "move_row") && iter0_valid &&
2776 eql(arg1, "end") && arg2 == NULL)
2777 tree_model_move_before(model, &iter0, NULL);
2778 else if (eql(ud->action, "move_row") && iter0_valid && iter1_valid && arg2 == NULL)
2779 tree_model_move_before(model, &iter0, &iter1);
2780 else if (eql(ud->action, "remove_row") && iter0_valid && arg1 == NULL)
2781 tree_model_remove(model, &iter0);
2782 else if (eql(ud->action, "clear") && arg0 == NULL) {
2783 tree_view_set_cursor(view, NULL, NULL);
2784 gtk_tree_selection_unselect_all(sel);
2785 tree_model_clear(model);
2786 } else if (eql(ud->action, "block") && arg0 != NULL) {
2787 ud->obj=G_OBJECT(sel);
2788 update_blocked(ud);
2789 } else if (eql(ud->action, "save") && arg0 != NULL &&
2790 (ar.fout = fopen(arg0, "w")) != NULL) {
2791 ar.obj = ud->obj;
2792 gtk_tree_model_foreach(model,
2793 (GtkTreeModelForeachFunc) save_tree_row_msg,
2794 &ar);
2795 fclose(ar.fout);
2796 } else
2797 try_generic_cmds(ud);
2798 free(tokens);
2799 gtk_tree_path_free(path);
2800 }
2801
2802 static void
2803 update_window(struct ui_data *ud)
2804 {
2805 if (!update_class_window(ud))
2806 try_generic_cmds(ud);
2807 }
2808
2809 /*
2810 * The final UI update. Runs inside gtk_main().
2811 */
2812 static void
2813 main_quit(struct ui_data *ud)
2814 {
2815 char dummy;
2816
2817 if (sscanf(ud->data, " %c", &dummy) < 1)
2818 gtk_main_quit();
2819 else
2820 try_generic_cmds(ud);
2821 }
2822
2823 /*
2824 * Don't update anything; just complain from inside gtk_main()
2825 */
2826 static void
2827 complain(struct ui_data *ud)
2828 {
2829 ign_cmd(ud->type, ud->cmd);
2830 }
2831
2832 /*
2833 * Parse command pointed to by ud, and act on ui accordingly. Runs
2834 * once per command inside gtk_main().
2835 */
2836 static gboolean
2837 update_ui(struct ui_data *ud)
2838 {
2839 char *lc = lc_numeric();
2840
2841 (ud->fn)(ud);
2842 free(ud->cmd_tokens);
2843 free(ud->cmd);
2844 free(ud);
2845 lc_numeric_free(lc);
2846 return G_SOURCE_REMOVE;
2847 }
2848
2849 /*
2850 * Keep track of loading files to avoid recursive loading of the same
2851 * file. If filename = NULL, forget the most recently remembered file.
2852 */
2853 static bool
2854 remember_loading_file(char *filename)
2855 {
2856 static char *filenames[BUFLEN];
2857 static size_t latest = 0;
2858 size_t i;
2859
2860 if (filename == NULL) { /* pop */
2861 if (latest < 1)
2862 ABORT;
2863 latest--;
2864 return false;
2865 } else { /* push */
2866 for (i = 1; i <= latest; i++)
2867 if (eql(filename, filenames[i]))
2868 return false;
2869 if (latest > BUFLEN -2)
2870 return false;
2871 filenames[++latest] = filename;
2872 return true;
2873 }
2874 }
2875
2876 /*
2877 * Read lines from stream cmd and perform appropriate actions on the
2878 * GUI. Runs inside receiver thread.
2879 */
2880 static void *
2881 digest_cmd(struct info *ar)
2882 {
2883 static int recursion = -1; /* > 0 means this is a recursive call */
2884
2885 recursion++;
2886 for (;;) {
2887 FILE *cmd = ar->fin;
2888 struct ui_data *ud = NULL;
2889 char first_char = '\0';
2890 char *id; /* widget id */
2891 size_t msg_size = 32;
2892 int id_start = 0, id_end = 0;
2893 int action_start = 0, action_end = 0;
2894 int data_start = 0;
2895
2896 if (feof(cmd))
2897 break;
2898 if ((ud = malloc(sizeof(*ud))) == NULL)
2899 OOM_ABORT;
2900 if ((ud->cmd = malloc(msg_size)) == NULL)
2901 OOM_ABORT;
2902 ud->args = ar;
2903 ud->type = G_TYPE_INVALID;
2904 pthread_testcancel();
2905 if (recursion == 0)
2906 log_msg(ar->flog, NULL);
2907 data_start = read_buf(cmd, &ud->cmd, &msg_size);
2908 if (recursion == 0)
2909 log_msg(ar->flog, ud->cmd);
2910 if ((ud->cmd_tokens = malloc(strlen(ud->cmd) + 1)) == NULL)
2911 OOM_ABORT;
2912 sscanf(ud->cmd, " %c", &first_char);
2913 if (data_start == 0 || /* empty line */
2914 first_char == '#') { /* comment */
2915 ud->fn = update_nothing;
2916 goto exec;
2917 }
2918 strcpy(ud->cmd_tokens, ud->cmd);
2919 sscanf(ud->cmd_tokens,
2920 " %n%*[0-9a-zA-Z_-]%n:%n%*[0-9a-zA-Z_]%n%*1[ \t]%n",
2921 &id_start, &id_end, &action_start, &action_end, &data_start);
2922 ud->cmd_tokens[id_end] = ud->cmd_tokens[action_end] = '\0';
2923 id = ud->cmd_tokens + id_start;
2924 ud->action = ud->cmd_tokens + action_start;
2925 ud->data = ud->cmd_tokens + data_start;
2926 if (eql(ud->action, "main_quit")) {
2927 ud->fn = main_quit;
2928 goto exec;
2929 }
2930 if (eql(ud->action, "load") && strlen(ud->data) > 0 &&
2931 remember_loading_file(ud->data)) {
2932 struct info a = *ar;
2933
2934 if ((a.fin = fopen(ud->data, "r")) != NULL) {
2935 digest_cmd(&a);
2936 fclose(a.fin);
2937 ud->fn = update_nothing;
2938 } else
2939 ud->fn = complain;
2940 remember_loading_file(NULL);
2941 goto exec;
2942 }
2943 if ((ud->obj = (gtk_builder_get_object(ar->builder, id))) == NULL) {
2944 ud->fn = complain;
2945 goto exec;
2946 }
2947 ud->type = G_TYPE_FROM_INSTANCE(ud->obj);
2948 if (ud->type == GTK_TYPE_DRAWING_AREA)
2949 ud->fn = update_drawing_area;
2950 else if (ud->type == GTK_TYPE_TREE_VIEW)
2951 ud->fn = update_tree_view;
2952 else if (ud->type == GTK_TYPE_COMBO_BOX_TEXT)
2953 ud->fn = update_combo_box_text;
2954 else if (ud->type == GTK_TYPE_LABEL)
2955 ud->fn = update_label;
2956 else if (ud->type == GTK_TYPE_IMAGE)
2957 ud->fn = update_image;
2958 else if (ud->type == GTK_TYPE_TEXT_VIEW)
2959 ud->fn = update_text_view;
2960 else if (ud->type == GTK_TYPE_NOTEBOOK)
2961 ud->fn = update_notebook;
2962 else if (ud->type == GTK_TYPE_EXPANDER)
2963 ud->fn = update_expander;
2964 else if (ud->type == GTK_TYPE_FRAME ||
2965 ud->type == GTK_TYPE_ASPECT_FRAME)
2966 ud->fn = update_frame;
2967 else if (ud->type == GTK_TYPE_SCROLLED_WINDOW)
2968 ud->fn = update_scrolled_window;
2969 else if (ud->type == GTK_TYPE_LINK_BUTTON)
2970 ud->fn = update_link_button;
2971 else if (ud->type == GTK_TYPE_BUTTON)
2972 ud->fn = update_button;
2973 else if (ud->type == GTK_TYPE_MENU)
2974 ud->fn = update_menu;
2975 else if (ud->type == GTK_TYPE_MENU_ITEM)
2976 ud->fn = update_menu_item;
2977 else if (ud->type == GTK_TYPE_FILE_CHOOSER_DIALOG)
2978 ud->fn = update_file_chooser_dialog;
2979 else if (ud->type == GTK_TYPE_FILE_CHOOSER_BUTTON)
2980 ud->fn = update_file_chooser_button;
2981 else if (ud->type == GTK_TYPE_COLOR_BUTTON)
2982 ud->fn = update_color_button;
2983 else if (ud->type == GTK_TYPE_FONT_BUTTON)
2984 ud->fn = update_font_button;
2985 else if (ud->type == GTK_TYPE_PRINT_UNIX_DIALOG)
2986 ud->fn = update_print_dialog;
2987 else if (ud->type == GTK_TYPE_SWITCH)
2988 ud->fn = update_switch;
2989 else if (ud->type == GTK_TYPE_TOGGLE_BUTTON ||
2990 ud->type == GTK_TYPE_RADIO_BUTTON ||
2991 ud->type == GTK_TYPE_CHECK_BUTTON)
2992 ud->fn = update_toggle_button;
2993 else if (ud->type == GTK_TYPE_ENTRY)
2994 ud->fn = update_entry;
2995 else if (ud->type == GTK_TYPE_SPIN_BUTTON)
2996 ud->fn = update_spin_button;
2997 else if (ud->type == GTK_TYPE_SCALE)
2998 ud->fn = update_scale;
2999 else if (ud->type == GTK_TYPE_PROGRESS_BAR)
3000 ud->fn = update_progress_bar;
3001 else if (ud->type == GTK_TYPE_SPINNER)
3002 ud->fn = update_spinner;
3003 else if (ud->type == GTK_TYPE_STATUSBAR)
3004 ud->fn = update_statusbar;
3005 else if (ud->type == GTK_TYPE_CALENDAR)
3006 ud->fn = update_calendar;
3007 else if (ud->type == GTK_TYPE_SOCKET)
3008 ud->fn = update_socket;
3009 else if (ud->type == GTK_TYPE_WINDOW ||
3010 ud->type == GTK_TYPE_DIALOG)
3011 ud->fn = update_window;
3012 else
3013 ud->fn = try_generic_cmds;
3014 exec:
3015 pthread_testcancel();
3016 gdk_threads_add_timeout(0, (GSourceFunc) update_ui, ud);
3017 }
3018 recursion--;
3019 return NULL;
3020 }
3021
3022 \f
3023 /*
3024 * ============================================================
3025 * Initialization
3026 * ============================================================
3027 */
3028
3029 /*
3030 * Return the first string xpath obtains from ui_file.
3031 * xmlFree(string) must be called when done
3032 */
3033 static xmlChar *
3034 xpath1(xmlChar *xpath, const char *ui_file)
3035 {
3036 xmlChar *r = NULL;
3037 xmlDocPtr doc = NULL;
3038 xmlNodeSetPtr nodes = NULL;
3039 xmlXPathContextPtr ctx = NULL;
3040 xmlXPathObjectPtr xpath_obj = NULL;
3041
3042 if ((doc = xmlParseFile(ui_file)) == NULL)
3043 goto ret0;
3044 if ((ctx = xmlXPathNewContext(doc)) == NULL)
3045 goto ret1;
3046 if ((xpath_obj = xmlXPathEvalExpression(xpath, ctx)) == NULL)
3047 goto ret2;
3048 if ((nodes = xpath_obj->nodesetval) != NULL && nodes->nodeNr > 0)
3049 r = xmlNodeGetContent(nodes->nodeTab[0]);
3050 xmlXPathFreeObject(xpath_obj);
3051 ret2:
3052 xmlXPathFreeContext(ctx);
3053 ret1:
3054 xmlFreeDoc(doc);
3055 ret0:
3056 return r;
3057 }
3058
3059 /*
3060 * Attach key "col_number" to renderer. Associate "col_number" with
3061 * the corresponding column number in the underlying model.
3062 * Due to what looks like a gap in the GTK API, renderer id and column
3063 * number are taken directly from the XML .ui file.
3064 */
3065 static bool
3066 tree_view_column_get_renderer_column(GtkBuilder *builder, const char *ui_file,
3067 GtkTreeViewColumn *t_col, int n,
3068 GtkCellRenderer **rnd)
3069 {
3070 bool r = false;
3071 char *xp_bas1 = "//object[@class=\"GtkTreeViewColumn\" and @id=\"";
3072 char *xp_bas2 = "\"]/child[";
3073 char *xp_bas3 = "]/object[@class=\"GtkCellRendererText\""
3074 " or @class=\"GtkCellRendererToggle\"]/";
3075 char *xp_rnd_id = "@id";
3076 char *xp_text_col = "../attributes/attribute[@name=\"text\""
3077 " or @name=\"active\"]/text()";
3078 const char *tree_col_id = widget_id(GTK_BUILDABLE(t_col));
3079 size_t xp_rnd_nam_len, xp_mod_col_len;
3080 size_t xp_n_len = 3; /* Big Enough (TM) */
3081 xmlChar *xp_rnd_nam = NULL, *xp_mod_col = NULL;
3082 xmlChar *rnd_nam = NULL, *mod_col = NULL;
3083
3084 /* find name of nth cell renderer under the GtkTreeViewColumn */
3085 /* tree_col_id */
3086 xp_rnd_nam_len = strlen(xp_bas1) + strlen(tree_col_id) +
3087 strlen(xp_bas2) + xp_n_len + strlen(xp_bas3) +
3088 strlen(xp_rnd_id) + sizeof('\0');
3089 if ((xp_rnd_nam = malloc(xp_rnd_nam_len)) == NULL)
3090 OOM_ABORT;
3091 snprintf((char *) xp_rnd_nam, xp_rnd_nam_len, "%s%s%s%d%s%s",
3092 xp_bas1, tree_col_id, xp_bas2, n,
3093 xp_bas3, xp_rnd_id);
3094 rnd_nam = xpath1(xp_rnd_nam, ui_file);
3095 /* find the model column that is attached to the nth cell */
3096 /* renderer under GtkTreeViewColumn tree_col_id */
3097 xp_mod_col_len = strlen(xp_bas1) + strlen(tree_col_id) +
3098 strlen(xp_bas2) + xp_n_len + strlen(xp_bas3) +
3099 strlen(xp_text_col) + sizeof('\0');
3100 if ((xp_mod_col = malloc(xp_mod_col_len)) == NULL)
3101 OOM_ABORT;
3102 snprintf((char *) xp_mod_col, xp_mod_col_len, "%s%s%s%d%s%s",
3103 xp_bas1, tree_col_id, xp_bas2, n, xp_bas3, xp_text_col);
3104 mod_col = xpath1(xp_mod_col, ui_file);
3105 if (rnd_nam) {
3106 *rnd = GTK_CELL_RENDERER(
3107 gtk_builder_get_object(builder, (char *) rnd_nam));
3108 if (mod_col) {
3109 g_object_set_data(G_OBJECT(*rnd), "col_number",
3110 GINT_TO_POINTER(strtol((char *) mod_col,
3111 NULL, 10)));
3112 r = true;
3113 }
3114 }
3115 free(xp_rnd_nam);
3116 free(xp_mod_col);
3117 xmlFree(rnd_nam);
3118 xmlFree(mod_col);
3119 return r;
3120 }
3121
3122 /*
3123 * Callbacks that forward a modification of a tree view cell to the
3124 * underlying model
3125 */
3126 static void
3127 cb_tree_model_edit(GtkCellRenderer *renderer, const gchar *path_s,
3128 const gchar *new_text, struct info *ar)
3129 {
3130 GtkTreeIter iter;
3131 int col = GPOINTER_TO_INT(g_object_get_data(G_OBJECT(renderer),
3132 "col_number"));
3133
3134 gtk_tree_model_get_iter_from_string(ar->model, &iter, path_s);
3135 set_tree_view_cell(ar->model, &iter, path_s, col,
3136 new_text);
3137 send_tree_cell_msg_by(send_msg, path_s, &iter, col, ar);
3138 }
3139
3140 static void
3141 cb_tree_model_toggle(GtkCellRenderer *renderer, gchar *path_s, struct info *ar)
3142 {
3143 GtkTreeIter iter;
3144 bool toggle_state;
3145 int col = GPOINTER_TO_INT(g_object_get_data(G_OBJECT(renderer),
3146 "col_number"));
3147
3148 gtk_tree_model_get_iter_from_string(ar->model, &iter, path_s);
3149 gtk_tree_model_get(ar->model, &iter, col, &toggle_state, -1);
3150 set_tree_view_cell(ar->model, &iter, path_s, col,
3151 toggle_state? "0" : "1");
3152 }
3153
3154 /*
3155 * Add new element containing id to the list of callback-handler ids
3156 * stored in obj's field named "signal_id"
3157 */
3158 static void
3159 push_handler_id(gpointer *obj, unsigned int id)
3160 {
3161 struct handler_id *prev_hid, *hid;
3162
3163 prev_hid = g_object_get_data(G_OBJECT(obj), "signal-id");
3164 if ((hid = malloc(sizeof(struct handler_id))) == NULL)
3165 OOM_ABORT;
3166 hid->next = prev_hid;
3167 hid->id = id;
3168 hid->blocked = false;
3169 g_object_set_data(G_OBJECT(obj), "signal-id", hid);
3170 }
3171
3172 /*
3173 * Connect function cb to obj's widget signal sig, remembering the
3174 * handler id in a list in obj's field named "signal-id"
3175 */
3176 static void
3177 sig_conn(gpointer *obj, char *sig, GCallback cb, struct info *ar)
3178 {
3179 unsigned int handler_id = g_signal_connect(obj, sig, cb, ar);
3180
3181 push_handler_id(obj, handler_id);
3182 }
3183
3184 static void
3185 sig_conn_swapped(gpointer *obj, char *sig, GCallback cb, void *data)
3186 {
3187 unsigned int handler_id = g_signal_connect_swapped(obj, sig, cb, data);
3188
3189 push_handler_id(obj, handler_id);
3190 }
3191
3192 static void
3193 connect_widget_signals(gpointer *obj, struct info *ar)
3194 {
3195 GObject *obj2;
3196 GType type = G_TYPE_INVALID;
3197 char *suffix = NULL;
3198 const char *w_id = NULL;
3199 FILE *o = ar->fout;
3200
3201 type = G_TYPE_FROM_INSTANCE(obj);
3202 if (GTK_IS_BUILDABLE(obj))
3203 w_id = widget_id(GTK_BUILDABLE(obj));
3204 if (type == GTK_TYPE_TREE_VIEW_COLUMN) {
3205 GList *cells = gtk_cell_layout_get_cells(GTK_CELL_LAYOUT(obj));
3206 GtkTreeViewColumn *tv_col = GTK_TREE_VIEW_COLUMN(obj);
3207 GObject *view = G_OBJECT(
3208 gtk_tree_view_column_get_tree_view(tv_col));
3209 unsigned int i, n_cells = g_list_length(cells);
3210
3211 g_list_free(cells);
3212 sig_conn(obj, "clicked", G_CALLBACK(cb_simple), info_txt_new(o, "clicked"));
3213 for (i = 1; i <= n_cells; i++) {
3214 GtkCellRenderer *renderer;
3215 gboolean editable = FALSE;
3216
3217 if (!tree_view_column_get_renderer_column(ar->builder, ar->txt, tv_col,
3218 i, &renderer))
3219 continue;
3220 if (GTK_IS_CELL_RENDERER_TEXT(renderer)) {
3221 g_object_get(renderer, "editable", &editable, NULL);
3222 if (editable) {
3223 GtkTreeModel *model = gtk_tree_view_get_model(GTK_TREE_VIEW(view));
3224
3225 g_signal_connect(renderer, "edited",
3226 G_CALLBACK(cb_tree_model_edit),
3227 info_obj_new(o, view, model));
3228 }
3229 } else if (GTK_IS_CELL_RENDERER_TOGGLE(renderer)) {
3230 g_object_get(renderer, "activatable", &editable, NULL);
3231 if (editable) {
3232 GtkTreeModel *model = gtk_tree_view_get_model(GTK_TREE_VIEW(view));
3233
3234 g_signal_connect(renderer, "toggled",
3235 G_CALLBACK(cb_tree_model_toggle),
3236 info_obj_new(o, NULL, model));
3237 }
3238 }
3239 }
3240 } else if (type == GTK_TYPE_LINK_BUTTON)
3241 sig_conn(obj, "activate-link", G_CALLBACK(cb_simple), info_txt_new(o, "clicked"));
3242 else if (type == GTK_TYPE_BUTTON)
3243 /* Button associated with a GtkTextView. */
3244 if ((suffix = strstr(w_id, "_send_text")) != NULL &&
3245 GTK_IS_TEXT_VIEW(obj2 = obj_sans_suffix(ar->builder, suffix, w_id)))
3246 sig_conn(obj, "clicked", G_CALLBACK(cb_send_text),
3247 info_obj_new(o, G_OBJECT(gtk_text_view_get_buffer(GTK_TEXT_VIEW(obj2))), NULL));
3248 else if ((suffix = strstr(w_id, "_send_selection")) != NULL &&
3249 GTK_IS_TEXT_VIEW(obj2 = obj_sans_suffix(ar->builder, suffix, w_id)))
3250 sig_conn(obj, "clicked", G_CALLBACK(cb_send_text_selection),
3251 info_obj_new(o, G_OBJECT(gtk_text_view_get_buffer(GTK_TEXT_VIEW(obj2))), NULL));
3252 else {
3253 sig_conn(obj, "clicked", G_CALLBACK(cb_simple), info_txt_new(o, "clicked"));
3254 /* Buttons associated with (and part of) a GtkDialog.
3255 * (We shun response ids which could be returned from
3256 * gtk_dialog_run() because that would require the
3257 * user to define those response ids in Glade,
3258 * numerically */
3259 if ((suffix = strstr(w_id, "_cancel")) != NULL &&
3260 GTK_IS_DIALOG(obj2 = obj_sans_suffix(ar->builder, suffix, w_id)))
3261 if (eql(widget_id(GTK_BUILDABLE(obj2)), MAIN_WIN))
3262 sig_conn_swapped(obj, "clicked",
3263 G_CALLBACK(gtk_main_quit), NULL);
3264 else
3265 sig_conn_swapped(obj, "clicked",
3266 G_CALLBACK(gtk_widget_hide), obj2);
3267 else if ((suffix = strstr(w_id, "_ok")) != NULL &&
3268 GTK_IS_DIALOG(obj2 = obj_sans_suffix(ar->builder, suffix, w_id))) {
3269 if (GTK_IS_FILE_CHOOSER_DIALOG(obj2))
3270 sig_conn_swapped(obj, "clicked",
3271 G_CALLBACK(cb_send_file_chooser_dialog_selection),
3272 info_obj_new(o, obj2, NULL));
3273 if (eql(widget_id(GTK_BUILDABLE(obj2)), MAIN_WIN))
3274 sig_conn_swapped(obj, "clicked",
3275 G_CALLBACK(gtk_main_quit), NULL);
3276 else
3277 sig_conn_swapped(obj, "clicked",
3278 G_CALLBACK(gtk_widget_hide), obj2);
3279 } else if ((suffix = strstr(w_id, "_apply")) != NULL &&
3280 GTK_IS_FILE_CHOOSER_DIALOG(obj2 = obj_sans_suffix(ar->builder, suffix, w_id)))
3281 sig_conn_swapped(obj, "clicked",
3282 G_CALLBACK(cb_send_file_chooser_dialog_selection),
3283 info_obj_new(o, obj2, NULL));
3284 }
3285 else if (GTK_IS_MENU_ITEM(obj))
3286 if ((suffix = strstr(w_id, "_invoke")) != NULL &&
3287 GTK_IS_DIALOG(obj2 = obj_sans_suffix(ar->builder, suffix, w_id)))
3288 sig_conn_swapped(obj, "activate",
3289 G_CALLBACK(gtk_widget_show), obj2);
3290 else
3291 sig_conn(obj, "activate",
3292 G_CALLBACK(cb_menu_item), info_txt_new(o, "active"));
3293 else if (GTK_IS_WINDOW(obj)) {
3294 sig_conn(obj, "delete-event",
3295 G_CALLBACK(cb_event_simple), info_txt_new(o, "closed"));
3296 if (eql(w_id, MAIN_WIN))
3297 sig_conn_swapped(obj, "delete-event",
3298 G_CALLBACK(gtk_main_quit), NULL);
3299 else
3300 sig_conn(obj, "delete-event",
3301 G_CALLBACK(gtk_widget_hide_on_delete), NULL);
3302 } else if (type == GTK_TYPE_FILE_CHOOSER_BUTTON)
3303 sig_conn(obj, "file-set",
3304 G_CALLBACK(cb_file_chooser_button), info_txt_new(o, "file"));
3305 else if (type == GTK_TYPE_COLOR_BUTTON)
3306 sig_conn(obj, "color-set",
3307 G_CALLBACK(cb_color_button), info_txt_new(o, "color"));
3308 else if (type == GTK_TYPE_FONT_BUTTON)
3309 sig_conn(obj, "font-set",
3310 G_CALLBACK(cb_font_button), info_txt_new(o, "font"));
3311 else if (type == GTK_TYPE_SWITCH)
3312 sig_conn(obj, "notify::active",
3313 G_CALLBACK(cb_switch), info_txt_new(o, NULL));
3314 else if (type == GTK_TYPE_TOGGLE_BUTTON ||
3315 type == GTK_TYPE_RADIO_BUTTON ||
3316 type == GTK_TYPE_CHECK_BUTTON)
3317 sig_conn(obj, "toggled",
3318 G_CALLBACK(cb_toggle_button), info_txt_new(o, NULL));
3319 else if (type == GTK_TYPE_ENTRY)
3320 sig_conn(obj, "changed",
3321 G_CALLBACK(cb_editable), info_txt_new(o, "text"));
3322 else if (type == GTK_TYPE_SPIN_BUTTON)
3323 sig_conn(obj, "value_changed",
3324 G_CALLBACK(cb_spin_button), info_txt_new(o, "text")); /* TODO: rename to "value" */
3325 else if (type == GTK_TYPE_SCALE)
3326 sig_conn(obj, "value-changed",
3327 G_CALLBACK(cb_range), info_txt_new(o, "value"));
3328 else if (type == GTK_TYPE_CALENDAR) {
3329 sig_conn(obj, "day-selected-double-click",
3330 G_CALLBACK(cb_calendar), info_txt_new(o, "doubleclicked"));
3331 sig_conn(obj, "day-selected",
3332 G_CALLBACK(cb_calendar), info_txt_new(o, "clicked"));
3333 } else if (type == GTK_TYPE_TREE_SELECTION)
3334 sig_conn(obj, "changed",
3335 G_CALLBACK(cb_tree_selection), info_txt_new(o, "clicked"));
3336 else if (type == GTK_TYPE_SOCKET) {
3337 sig_conn(obj, "plug-added",
3338 G_CALLBACK(cb_simple), info_txt_new(o, "plug-added"));
3339 sig_conn(obj, "plug-removed",
3340 G_CALLBACK(cb_simple), info_txt_new(o, "plug-removed"));
3341 /* TODO: rename to plug_added, plug_removed */
3342 } else if (type == GTK_TYPE_DRAWING_AREA)
3343 sig_conn(obj, "draw", G_CALLBACK(cb_draw), NULL);
3344 else if (type == GTK_TYPE_EVENT_BOX) {
3345 gtk_widget_set_can_focus(GTK_WIDGET(obj), true);
3346 sig_conn(obj, "button-press-event",
3347 G_CALLBACK(cb_event_box_button),
3348 info_txt_new(o, "button_press"));
3349 sig_conn(obj, "button-release-event",
3350 G_CALLBACK(cb_event_box_button),
3351 info_txt_new(o, "button_release"));
3352 sig_conn(obj, "motion-notify-event",
3353 G_CALLBACK(cb_event_box_motion),
3354 info_txt_new(o, "motion"));
3355 sig_conn(obj, "key-press-event",
3356 G_CALLBACK(cb_event_box_key),
3357 info_txt_new(o, "key_press"));
3358 }
3359 }
3360
3361 /*
3362 * We keep a style provider with each widget
3363 */
3364 static void
3365 add_widget_style_provider(gpointer *obj, void *data)
3366 {
3367 GtkCssProvider *style_provider;
3368 GtkStyleContext *context;
3369
3370 (void) data;
3371 if (!GTK_IS_WIDGET(obj))
3372 return;
3373 style_provider = gtk_css_provider_new();
3374 context = gtk_widget_get_style_context(GTK_WIDGET(obj));
3375 gtk_style_context_add_provider(context,
3376 GTK_STYLE_PROVIDER(style_provider),
3377 GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
3378 g_object_set_data(G_OBJECT(obj), "style_provider", style_provider);
3379 }
3380
3381 static void
3382 prepare_widgets(GtkBuilder *builder, char *ui_file, FILE *out)
3383 {
3384 GSList *objects = NULL;
3385 struct info ar = {.builder = builder, .fout = out, .txt = ui_file};
3386
3387 objects = gtk_builder_get_objects(builder);
3388 g_slist_foreach(objects, (GFunc) connect_widget_signals, &ar);
3389 g_slist_foreach(objects, (GFunc) add_widget_style_provider, NULL);
3390 g_slist_free(objects);
3391 }
3392
3393 int
3394 main(int argc, char *argv[])
3395 {
3396 GObject *main_window = NULL;
3397 bool bg = false;
3398 char *in_fifo = NULL, *out_fifo = NULL;
3399 char *ui_file = "pipeglade.ui", *log_file = NULL, *err_file = NULL;
3400 char *xid = NULL;
3401 char opt;
3402 pthread_t receiver;
3403 struct info ar;
3404
3405 /* Disable runtime GLIB deprecation warnings: */
3406 setenv("G_ENABLE_DIAGNOSTIC", "0", 0);
3407 gtk_init(&argc, &argv);
3408 while ((opt = getopt(argc, argv, "bGhe:i:l:o:O:u:V")) != -1) {
3409 switch (opt) {
3410 case 'b': bg = true; break;
3411 case 'e': xid = optarg; break;
3412 case 'G': show_lib_versions(); break;
3413 case 'h': bye(EXIT_SUCCESS, stdout, USAGE); break;
3414 case 'i': in_fifo = optarg; break;
3415 case 'l': log_file = optarg; break;
3416 case 'o': out_fifo = optarg; break;
3417 case 'O': err_file = optarg; break;
3418 case 'u': ui_file = optarg; break;
3419 case 'V': bye(EXIT_SUCCESS, stdout, "%s\n", VERSION); break;
3420 case '?':
3421 default: bye(EXIT_FAILURE, stderr, USAGE); break;
3422 }
3423 }
3424 if (argv[optind] != NULL)
3425 bye(EXIT_FAILURE, stderr,
3426 "illegal parameter '%s'\n" USAGE, argv[optind]);
3427 redirect_stderr(err_file);
3428 ar.fin = open_fifo(in_fifo, "r", stdin, _IONBF);
3429 ar.fout = open_fifo(out_fifo, "w", stdout, _IOLBF);
3430 go_bg_if(bg, ar.fin, ar.fout, err_file);
3431 ar.builder = builder_from_file(ui_file);
3432 ar.flog = open_log(log_file);
3433 pthread_create(&receiver, NULL, (void *(*)(void *)) digest_cmd, &ar);
3434 main_window = find_main_window(ar.builder);
3435 xmlInitParser();
3436 LIBXML_TEST_VERSION;
3437 prepare_widgets(ar.builder, ui_file, ar.fout);
3438 xembed_if(xid, main_window);
3439 gtk_main();
3440 pthread_cancel(receiver);
3441 pthread_join(receiver, NULL);
3442 xmlCleanupParser();
3443 rm_unless(stdin, ar.fin, in_fifo);
3444 rm_unless(stdout, ar.fout, out_fifo);
3445 exit(EXIT_SUCCESS);
3446 }
Graphical User Interfaces, The UNIX Way