fe8abbf4 |
1 | /* |
2 | * dialog.c - a reasonably platform-independent mechanism for |
3 | * describing dialog boxes. |
4 | */ |
5 | |
6 | #include <assert.h> |
7 | #include <limits.h> |
8 | #include <stdarg.h> |
d1582b2e |
9 | #include <stdlib.h> |
fe8abbf4 |
10 | |
11 | #define DEFINE_INTORPTR_FNS |
12 | |
13 | #include "putty.h" |
14 | #include "dialog.h" |
15 | |
16 | int ctrl_path_elements(char *path) |
17 | { |
18 | int i = 1; |
19 | while (*path) { |
20 | if (*path == '/') i++; |
21 | path++; |
22 | } |
23 | return i; |
24 | } |
25 | |
26 | /* Return the number of matching path elements at the starts of p1 and p2, |
27 | * or INT_MAX if the paths are identical. */ |
28 | int ctrl_path_compare(char *p1, char *p2) |
29 | { |
30 | int i = 0; |
31 | while (*p1 || *p2) { |
32 | if ((*p1 == '/' || *p1 == '\0') && |
33 | (*p2 == '/' || *p2 == '\0')) |
34 | i++; /* a whole element matches, ooh */ |
35 | if (*p1 != *p2) |
36 | return i; /* mismatch */ |
37 | p1++, p2++; |
38 | } |
39 | return INT_MAX; /* exact match */ |
40 | } |
41 | |
42 | struct controlbox *ctrl_new_box(void) |
43 | { |
3d88e64d |
44 | struct controlbox *ret = snew(struct controlbox); |
fe8abbf4 |
45 | |
46 | ret->nctrlsets = ret->ctrlsetsize = 0; |
47 | ret->ctrlsets = NULL; |
48 | ret->nfrees = ret->freesize = 0; |
49 | ret->frees = NULL; |
50 | |
51 | return ret; |
52 | } |
53 | |
54 | void ctrl_free_box(struct controlbox *b) |
55 | { |
56 | int i; |
57 | |
58 | for (i = 0; i < b->nctrlsets; i++) { |
59 | ctrl_free_set(b->ctrlsets[i]); |
60 | } |
61 | for (i = 0; i < b->nfrees; i++) |
62 | sfree(b->frees[i]); |
63 | sfree(b->ctrlsets); |
64 | sfree(b->frees); |
65 | sfree(b); |
66 | } |
67 | |
68 | void ctrl_free_set(struct controlset *s) |
69 | { |
70 | int i; |
71 | |
72 | sfree(s->pathname); |
73 | sfree(s->boxname); |
74 | sfree(s->boxtitle); |
75 | for (i = 0; i < s->ncontrols; i++) { |
76 | ctrl_free(s->ctrls[i]); |
77 | } |
78 | sfree(s->ctrls); |
79 | sfree(s); |
80 | } |
81 | |
82 | /* |
83 | * Find the index of first controlset in a controlbox for a given |
84 | * path. If that path doesn't exist, return the index where it |
85 | * should be inserted. |
86 | */ |
87 | static int ctrl_find_set(struct controlbox *b, char *path, int start) |
88 | { |
89 | int i, last, thisone; |
90 | |
91 | last = 0; |
92 | for (i = 0; i < b->nctrlsets; i++) { |
93 | thisone = ctrl_path_compare(path, b->ctrlsets[i]->pathname); |
94 | /* |
95 | * If `start' is true and there exists a controlset with |
96 | * exactly the path we've been given, we should return the |
97 | * index of the first such controlset we find. Otherwise, |
98 | * we should return the index of the first entry in which |
99 | * _fewer_ path elements match than they did last time. |
100 | */ |
101 | if ((start && thisone == INT_MAX) || thisone < last) |
102 | return i; |
103 | last = thisone; |
104 | } |
105 | return b->nctrlsets; /* insert at end */ |
106 | } |
107 | |
108 | /* |
109 | * Find the index of next controlset in a controlbox for a given |
110 | * path, or -1 if no such controlset exists. If -1 is passed as |
111 | * input, finds the first. |
112 | */ |
113 | int ctrl_find_path(struct controlbox *b, char *path, int index) |
114 | { |
115 | if (index < 0) |
116 | index = ctrl_find_set(b, path, 1); |
117 | else |
118 | index++; |
119 | |
120 | if (index < b->nctrlsets && !strcmp(path, b->ctrlsets[index]->pathname)) |
121 | return index; |
122 | else |
123 | return -1; |
124 | } |
125 | |
126 | /* Set up a panel title. */ |
127 | struct controlset *ctrl_settitle(struct controlbox *b, |
128 | char *path, char *title) |
129 | { |
130 | |
3d88e64d |
131 | struct controlset *s = snew(struct controlset); |
fe8abbf4 |
132 | int index = ctrl_find_set(b, path, 1); |
133 | s->pathname = dupstr(path); |
134 | s->boxname = NULL; |
135 | s->boxtitle = dupstr(title); |
136 | s->ncontrols = s->ctrlsize = 0; |
137 | s->ncolumns = 0; /* this is a title! */ |
138 | s->ctrls = NULL; |
139 | if (b->nctrlsets >= b->ctrlsetsize) { |
140 | b->ctrlsetsize = b->nctrlsets + 32; |
3d88e64d |
141 | b->ctrlsets = sresize(b->ctrlsets, b->ctrlsetsize,struct controlset *); |
fe8abbf4 |
142 | } |
143 | if (index < b->nctrlsets) |
144 | memmove(&b->ctrlsets[index+1], &b->ctrlsets[index], |
145 | (b->nctrlsets-index) * sizeof(*b->ctrlsets)); |
146 | b->ctrlsets[index] = s; |
147 | b->nctrlsets++; |
148 | return s; |
149 | } |
150 | |
151 | /* Retrieve a pointer to a controlset, creating it if absent. */ |
152 | struct controlset *ctrl_getset(struct controlbox *b, |
153 | char *path, char *name, char *boxtitle) |
154 | { |
155 | struct controlset *s; |
156 | int index = ctrl_find_set(b, path, 1); |
157 | while (index < b->nctrlsets && |
158 | !strcmp(b->ctrlsets[index]->pathname, path)) { |
159 | if (b->ctrlsets[index]->boxname && |
160 | !strcmp(b->ctrlsets[index]->boxname, name)) |
161 | return b->ctrlsets[index]; |
162 | index++; |
163 | } |
3d88e64d |
164 | s = snew(struct controlset); |
fe8abbf4 |
165 | s->pathname = dupstr(path); |
166 | s->boxname = dupstr(name); |
167 | s->boxtitle = boxtitle ? dupstr(boxtitle) : NULL; |
168 | s->ncolumns = 1; |
169 | s->ncontrols = s->ctrlsize = 0; |
170 | s->ctrls = NULL; |
171 | if (b->nctrlsets >= b->ctrlsetsize) { |
172 | b->ctrlsetsize = b->nctrlsets + 32; |
3d88e64d |
173 | b->ctrlsets = sresize(b->ctrlsets, b->ctrlsetsize,struct controlset *); |
fe8abbf4 |
174 | } |
175 | if (index < b->nctrlsets) |
176 | memmove(&b->ctrlsets[index+1], &b->ctrlsets[index], |
177 | (b->nctrlsets-index) * sizeof(*b->ctrlsets)); |
178 | b->ctrlsets[index] = s; |
179 | b->nctrlsets++; |
180 | return s; |
181 | } |
182 | |
183 | /* Allocate some private data in a controlbox. */ |
184 | void *ctrl_alloc(struct controlbox *b, size_t size) |
185 | { |
186 | void *p; |
3d88e64d |
187 | /* |
188 | * This is an internal allocation routine, so it's allowed to |
189 | * use smalloc directly. |
190 | */ |
fe8abbf4 |
191 | p = smalloc(size); |
192 | if (b->nfrees >= b->freesize) { |
193 | b->freesize = b->nfrees + 32; |
3d88e64d |
194 | b->frees = sresize(b->frees, b->freesize, void *); |
fe8abbf4 |
195 | } |
196 | b->frees[b->nfrees++] = p; |
197 | return p; |
198 | } |
199 | |
200 | static union control *ctrl_new(struct controlset *s, int type, |
201 | intorptr helpctx, handler_fn handler, |
202 | intorptr context) |
203 | { |
3d88e64d |
204 | union control *c = snew(union control); |
fe8abbf4 |
205 | if (s->ncontrols >= s->ctrlsize) { |
206 | s->ctrlsize = s->ncontrols + 32; |
3d88e64d |
207 | s->ctrls = sresize(s->ctrls, s->ctrlsize, union control *); |
fe8abbf4 |
208 | } |
209 | s->ctrls[s->ncontrols++] = c; |
210 | /* |
211 | * Fill in the standard fields. |
212 | */ |
213 | c->generic.type = type; |
214 | c->generic.tabdelay = 0; |
215 | c->generic.column = COLUMN_FIELD(0, s->ncolumns); |
216 | c->generic.helpctx = helpctx; |
217 | c->generic.handler = handler; |
218 | c->generic.context = context; |
219 | c->generic.label = NULL; |
220 | return c; |
221 | } |
222 | |
223 | /* `ncolumns' is followed by that many percentages, as integers. */ |
224 | union control *ctrl_columns(struct controlset *s, int ncolumns, ...) |
225 | { |
226 | union control *c = ctrl_new(s, CTRL_COLUMNS, P(NULL), NULL, P(NULL)); |
227 | assert(s->ncolumns == 1 || ncolumns == 1); |
228 | c->columns.ncols = ncolumns; |
229 | s->ncolumns = ncolumns; |
230 | if (ncolumns == 1) { |
231 | c->columns.percentages = NULL; |
232 | } else { |
233 | va_list ap; |
234 | int i; |
3d88e64d |
235 | c->columns.percentages = snewn(ncolumns, int); |
fe8abbf4 |
236 | va_start(ap, ncolumns); |
237 | for (i = 0; i < ncolumns; i++) |
238 | c->columns.percentages[i] = va_arg(ap, int); |
239 | va_end(ap); |
240 | } |
241 | return c; |
242 | } |
243 | |
244 | union control *ctrl_editbox(struct controlset *s, char *label, char shortcut, |
245 | int percentage, |
246 | intorptr helpctx, handler_fn handler, |
247 | intorptr context, intorptr context2) |
248 | { |
249 | union control *c = ctrl_new(s, CTRL_EDITBOX, helpctx, handler, context); |
250 | c->editbox.label = label ? dupstr(label) : NULL; |
251 | c->editbox.shortcut = shortcut; |
252 | c->editbox.percentwidth = percentage; |
253 | c->editbox.password = 0; |
254 | c->editbox.has_list = 0; |
255 | c->editbox.context2 = context2; |
256 | return c; |
257 | } |
258 | |
259 | union control *ctrl_combobox(struct controlset *s, char *label, char shortcut, |
260 | int percentage, |
261 | intorptr helpctx, handler_fn handler, |
262 | intorptr context, intorptr context2) |
263 | { |
264 | union control *c = ctrl_new(s, CTRL_EDITBOX, helpctx, handler, context); |
265 | c->editbox.label = label ? dupstr(label) : NULL; |
266 | c->editbox.shortcut = shortcut; |
267 | c->editbox.percentwidth = percentage; |
268 | c->editbox.password = 0; |
269 | c->editbox.has_list = 1; |
270 | c->editbox.context2 = context2; |
271 | return c; |
272 | } |
273 | |
274 | /* |
275 | * `ncolumns' is followed by (alternately) radio button titles and |
276 | * intorptrs, until a NULL in place of a title string is seen. Each |
277 | * title is expected to be followed by a shortcut _iff_ `shortcut' |
278 | * is NO_SHORTCUT. |
279 | */ |
280 | union control *ctrl_radiobuttons(struct controlset *s, char *label, |
281 | char shortcut, int ncolumns, intorptr helpctx, |
282 | handler_fn handler, intorptr context, ...) |
283 | { |
284 | va_list ap; |
285 | int i; |
286 | union control *c = ctrl_new(s, CTRL_RADIO, helpctx, handler, context); |
287 | c->radio.label = label ? dupstr(label) : NULL; |
288 | c->radio.shortcut = shortcut; |
289 | c->radio.ncolumns = ncolumns; |
290 | /* |
291 | * Initial pass along variable argument list to count the |
292 | * buttons. |
293 | */ |
294 | va_start(ap, context); |
295 | i = 0; |
296 | while (va_arg(ap, char *) != NULL) { |
297 | i++; |
298 | if (c->radio.shortcut == NO_SHORTCUT) |
d1582b2e |
299 | (void)va_arg(ap, int); /* char promotes to int in arg lists */ |
300 | (void)va_arg(ap, intorptr); |
fe8abbf4 |
301 | } |
302 | va_end(ap); |
303 | c->radio.nbuttons = i; |
304 | if (c->radio.shortcut == NO_SHORTCUT) |
3d88e64d |
305 | c->radio.shortcuts = snewn(c->radio.nbuttons, char); |
fe8abbf4 |
306 | else |
307 | c->radio.shortcuts = NULL; |
3d88e64d |
308 | c->radio.buttons = snewn(c->radio.nbuttons, char *); |
309 | c->radio.buttondata = snewn(c->radio.nbuttons, intorptr); |
fe8abbf4 |
310 | /* |
311 | * Second pass along variable argument list to actually fill in |
312 | * the structure. |
313 | */ |
314 | va_start(ap, context); |
315 | for (i = 0; i < c->radio.nbuttons; i++) { |
316 | c->radio.buttons[i] = dupstr(va_arg(ap, char *)); |
317 | if (c->radio.shortcut == NO_SHORTCUT) |
318 | c->radio.shortcuts[i] = va_arg(ap, int); |
319 | /* char promotes to int in arg lists */ |
320 | c->radio.buttondata[i] = va_arg(ap, intorptr); |
321 | } |
322 | va_end(ap); |
323 | return c; |
324 | } |
325 | |
326 | union control *ctrl_pushbutton(struct controlset *s,char *label,char shortcut, |
327 | intorptr helpctx, handler_fn handler, |
328 | intorptr context) |
329 | { |
330 | union control *c = ctrl_new(s, CTRL_BUTTON, helpctx, handler, context); |
331 | c->button.label = label ? dupstr(label) : NULL; |
332 | c->button.shortcut = shortcut; |
333 | c->button.isdefault = 0; |
0bd8d76d |
334 | c->button.iscancel = 0; |
fe8abbf4 |
335 | return c; |
336 | } |
337 | |
338 | union control *ctrl_listbox(struct controlset *s,char *label,char shortcut, |
339 | intorptr helpctx, handler_fn handler, |
340 | intorptr context) |
341 | { |
342 | union control *c = ctrl_new(s, CTRL_LISTBOX, helpctx, handler, context); |
343 | c->listbox.label = label ? dupstr(label) : NULL; |
344 | c->listbox.shortcut = shortcut; |
345 | c->listbox.height = 5; /* *shrug* a plausible default */ |
346 | c->listbox.draglist = 0; |
347 | c->listbox.multisel = 0; |
348 | c->listbox.percentwidth = 100; |
349 | c->listbox.ncols = 0; |
350 | c->listbox.percentages = NULL; |
351 | return c; |
352 | } |
353 | |
354 | union control *ctrl_droplist(struct controlset *s, char *label, char shortcut, |
355 | int percentage, intorptr helpctx, |
356 | handler_fn handler, intorptr context) |
357 | { |
358 | union control *c = ctrl_new(s, CTRL_LISTBOX, helpctx, handler, context); |
359 | c->listbox.label = label ? dupstr(label) : NULL; |
360 | c->listbox.shortcut = shortcut; |
361 | c->listbox.height = 0; /* means it's a drop-down list */ |
362 | c->listbox.draglist = 0; |
363 | c->listbox.multisel = 0; |
364 | c->listbox.percentwidth = percentage; |
365 | return c; |
366 | } |
367 | |
368 | union control *ctrl_draglist(struct controlset *s,char *label,char shortcut, |
369 | intorptr helpctx, handler_fn handler, |
370 | intorptr context) |
371 | { |
372 | union control *c = ctrl_new(s, CTRL_LISTBOX, helpctx, handler, context); |
373 | c->listbox.label = label ? dupstr(label) : NULL; |
374 | c->listbox.shortcut = shortcut; |
375 | c->listbox.height = 5; /* *shrug* a plausible default */ |
376 | c->listbox.draglist = 1; |
377 | c->listbox.multisel = 0; |
378 | c->listbox.percentwidth = 100; |
379 | return c; |
380 | } |
381 | |
382 | union control *ctrl_filesel(struct controlset *s,char *label,char shortcut, |
383 | char const *filter, int write, char *title, |
384 | intorptr helpctx, handler_fn handler, |
385 | intorptr context) |
386 | { |
387 | union control *c = ctrl_new(s, CTRL_FILESELECT, helpctx, handler, context); |
388 | c->fileselect.label = label ? dupstr(label) : NULL; |
389 | c->fileselect.shortcut = shortcut; |
390 | c->fileselect.filter = filter; |
391 | c->fileselect.for_writing = write; |
392 | c->fileselect.title = dupstr(title); |
393 | return c; |
394 | } |
395 | |
396 | union control *ctrl_fontsel(struct controlset *s,char *label,char shortcut, |
397 | intorptr helpctx, handler_fn handler, |
398 | intorptr context) |
399 | { |
400 | union control *c = ctrl_new(s, CTRL_FONTSELECT, helpctx, handler, context); |
401 | c->fontselect.label = label ? dupstr(label) : NULL; |
402 | c->fontselect.shortcut = shortcut; |
403 | return c; |
404 | } |
405 | |
406 | union control *ctrl_tabdelay(struct controlset *s, union control *ctrl) |
407 | { |
408 | union control *c = ctrl_new(s, CTRL_TABDELAY, P(NULL), NULL, P(NULL)); |
409 | c->tabdelay.ctrl = ctrl; |
410 | return c; |
411 | } |
412 | |
413 | union control *ctrl_text(struct controlset *s, char *text, intorptr helpctx) |
414 | { |
415 | union control *c = ctrl_new(s, CTRL_TEXT, helpctx, NULL, P(NULL)); |
416 | c->text.label = dupstr(text); |
417 | return c; |
418 | } |
419 | |
420 | union control *ctrl_checkbox(struct controlset *s, char *label, char shortcut, |
421 | intorptr helpctx, handler_fn handler, |
422 | intorptr context) |
423 | { |
424 | union control *c = ctrl_new(s, CTRL_CHECKBOX, helpctx, handler, context); |
425 | c->checkbox.label = label ? dupstr(label) : NULL; |
426 | c->checkbox.shortcut = shortcut; |
427 | return c; |
428 | } |
429 | |
430 | void ctrl_free(union control *ctrl) |
431 | { |
432 | int i; |
433 | |
434 | sfree(ctrl->generic.label); |
435 | switch (ctrl->generic.type) { |
436 | case CTRL_RADIO: |
437 | for (i = 0; i < ctrl->radio.nbuttons; i++) |
438 | sfree(ctrl->radio.buttons[i]); |
439 | sfree(ctrl->radio.buttons); |
440 | sfree(ctrl->radio.shortcuts); |
441 | sfree(ctrl->radio.buttondata); |
442 | break; |
443 | case CTRL_COLUMNS: |
444 | sfree(ctrl->columns.percentages); |
445 | break; |
446 | case CTRL_LISTBOX: |
447 | sfree(ctrl->listbox.percentages); |
448 | break; |
449 | case CTRL_FILESELECT: |
450 | sfree(ctrl->fileselect.title); |
451 | break; |
452 | } |
453 | sfree(ctrl); |
454 | } |
455 | |
456 | void dlg_stdradiobutton_handler(union control *ctrl, void *dlg, |
457 | void *data, int event) |
458 | { |
459 | int button; |
460 | /* |
461 | * For a standard radio button set, the context parameter gives |
462 | * offsetof(targetfield, Config), and the extra data per button |
463 | * gives the value the target field should take if that button |
464 | * is the one selected. |
465 | */ |
466 | if (event == EVENT_REFRESH) { |
467 | for (button = 0; button < ctrl->radio.nbuttons; button++) |
468 | if (*(int *)ATOFFSET(data, ctrl->radio.context.i) == |
469 | ctrl->radio.buttondata[button].i) |
470 | break; |
471 | /* We expected that `break' to happen, in all circumstances. */ |
472 | assert(button < ctrl->radio.nbuttons); |
473 | dlg_radiobutton_set(ctrl, dlg, button); |
474 | } else if (event == EVENT_VALCHANGE) { |
475 | button = dlg_radiobutton_get(ctrl, dlg); |
476 | assert(button >= 0 && button < ctrl->radio.nbuttons); |
477 | *(int *)ATOFFSET(data, ctrl->radio.context.i) = |
478 | ctrl->radio.buttondata[button].i; |
479 | } |
480 | } |
481 | |
482 | void dlg_stdcheckbox_handler(union control *ctrl, void *dlg, |
483 | void *data, int event) |
484 | { |
485 | int offset, invert; |
486 | |
487 | /* |
488 | * For a standard checkbox, the context parameter gives |
489 | * offsetof(targetfield, Config), optionally ORed with |
490 | * CHECKBOX_INVERT. |
491 | */ |
492 | offset = ctrl->checkbox.context.i; |
493 | if (offset & CHECKBOX_INVERT) { |
494 | offset &= ~CHECKBOX_INVERT; |
495 | invert = 1; |
496 | } else |
497 | invert = 0; |
498 | |
499 | /* |
500 | * C lacks a logical XOR, so the following code uses the idiom |
501 | * (!a ^ !b) to obtain the logical XOR of a and b. (That is, 1 |
502 | * iff exactly one of a and b is nonzero, otherwise 0.) |
503 | */ |
504 | |
505 | if (event == EVENT_REFRESH) { |
506 | dlg_checkbox_set(ctrl,dlg, (!*(int *)ATOFFSET(data,offset) ^ !invert)); |
507 | } else if (event == EVENT_VALCHANGE) { |
508 | *(int *)ATOFFSET(data, offset) = !dlg_checkbox_get(ctrl,dlg) ^ !invert; |
509 | } |
510 | } |
511 | |
512 | void dlg_stdeditbox_handler(union control *ctrl, void *dlg, |
513 | void *data, int event) |
514 | { |
515 | /* |
516 | * The standard edit-box handler expects the main `context' |
517 | * field to contain the `offsetof' a field in the structure |
518 | * pointed to by `data'. The secondary `context2' field |
519 | * indicates the type of this field: |
520 | * |
521 | * - if context2 > 0, the field is a char array and context2 |
522 | * gives its size. |
523 | * - if context2 == -1, the field is an int and the edit box |
524 | * is numeric. |
525 | * - if context2 < -1, the field is an int and the edit box is |
526 | * _floating_, and (-context2) gives the scale. (E.g. if |
527 | * context2 == -1000, then typing 1.2 into the box will set |
528 | * the field to 1200.) |
529 | */ |
530 | int offset = ctrl->editbox.context.i; |
531 | int length = ctrl->editbox.context2.i; |
532 | |
533 | if (length > 0) { |
534 | char *field = (char *)ATOFFSET(data, offset); |
535 | if (event == EVENT_REFRESH) { |
536 | dlg_editbox_set(ctrl, dlg, field); |
537 | } else if (event == EVENT_VALCHANGE) { |
538 | dlg_editbox_get(ctrl, dlg, field, length); |
539 | } |
540 | } else if (length < 0) { |
541 | int *field = (int *)ATOFFSET(data, offset); |
542 | char data[80]; |
543 | if (event == EVENT_REFRESH) { |
544 | if (length == -1) |
545 | sprintf(data, "%d", *field); |
546 | else |
547 | sprintf(data, "%g", (double)*field / (double)(-length)); |
548 | dlg_editbox_set(ctrl, dlg, data); |
549 | } else if (event == EVENT_VALCHANGE) { |
550 | dlg_editbox_get(ctrl, dlg, data, lenof(data)); |
551 | if (length == -1) |
552 | *field = atoi(data); |
553 | else |
554 | *field = (int)((-length) * atof(data)); |
555 | } |
556 | } |
557 | } |
558 | |
559 | void dlg_stdfilesel_handler(union control *ctrl, void *dlg, |
560 | void *data, int event) |
561 | { |
562 | /* |
563 | * The standard file-selector handler expects the `context' |
564 | * field to contain the `offsetof' a Filename field in the |
565 | * structure pointed to by `data'. |
566 | */ |
567 | int offset = ctrl->fileselect.context.i; |
568 | |
569 | if (event == EVENT_REFRESH) { |
570 | dlg_filesel_set(ctrl, dlg, *(Filename *)ATOFFSET(data, offset)); |
571 | } else if (event == EVENT_VALCHANGE) { |
572 | dlg_filesel_get(ctrl, dlg, (Filename *)ATOFFSET(data, offset)); |
573 | } |
574 | } |
575 | |
576 | void dlg_stdfontsel_handler(union control *ctrl, void *dlg, |
577 | void *data, int event) |
578 | { |
579 | /* |
580 | * The standard file-selector handler expects the `context' |
581 | * field to contain the `offsetof' a FontSpec field in the |
582 | * structure pointed to by `data'. |
583 | */ |
584 | int offset = ctrl->fontselect.context.i; |
585 | |
586 | if (event == EVENT_REFRESH) { |
587 | dlg_fontsel_set(ctrl, dlg, *(FontSpec *)ATOFFSET(data, offset)); |
588 | } else if (event == EVENT_VALCHANGE) { |
589 | dlg_fontsel_get(ctrl, dlg, (FontSpec *)ATOFFSET(data, offset)); |
590 | } |
591 | } |