summaryrefslogtreecommitdiff
path: root/ui.c
blob: ebaa0efb7625cc2b9ab582b0bb6f365fc2e27337 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
#if __unix__
#include <fcntl.h>
#endif

static float selector_entries_start_y(Ted *ted, Selector const *s) {
	float padding = ted_active_settings(ted)->padding;

	return s->bounds.pos.y
		+ ted_line_buffer_height(ted) + padding; // make room for line buffer
}

// number of entries that can be displayed on the screen
static u32 selector_n_display_entries(Ted *ted, Selector const *s) {
	float char_height = text_font_char_height(ted->font);
	float entries_h = rect_y2(s->bounds) - selector_entries_start_y(ted, s);
	return (u32)(entries_h / char_height);
}

static void selector_clamp_scroll(Ted *ted, Selector *s) {
	float max_scroll = (float)s->n_entries - (float)selector_n_display_entries(ted, s);
	if (max_scroll < 0) max_scroll = 0;
	s->scroll = clampf(s->scroll, 0, max_scroll);
}

static void selector_scroll_to_cursor(Ted *ted, Selector *s) {
	u32 n_display_entries = selector_n_display_entries(ted, s);
	float scrolloff = ted_active_settings(ted)->scrolloff;
	float min_scroll = (float)s->cursor - ((float)n_display_entries - scrolloff);
	float max_scroll = (float)s->cursor - scrolloff;
	s->scroll = clampf(s->scroll, min_scroll, max_scroll);
	selector_clamp_scroll(ted, s);
}

// where is the ith entry in the selector on the screen?
// returns false if it's completely offscreen
static bool selector_entry_pos(Ted *ted, Selector const *s, u32 i, Rect *r) {
	Rect bounds = s->bounds;
	float char_height = text_font_char_height(ted->font);
	*r = rect(V2(bounds.pos.x, selector_entries_start_y(ted, s)
		- char_height * s->scroll
		+ char_height * (float)i), 
		V2(bounds.size.x, char_height));
	return rect_clip_to_rect(r, bounds);
}

static void selector_up(Ted *ted, Selector *s, i64 n) {
	if (!s->enable_cursor || s->n_entries == 0) {
		// can't do anything
		return;
	}
	s->cursor = (u32)mod_i64(s->cursor - n, s->n_entries);
	selector_scroll_to_cursor(ted, s);
}

static void selector_down(Ted *ted, Selector *s, i64 n) {
	selector_up(ted, s, -n);
}

static int selectory_entry_cmp_name(void const *av, void const *bv) {
	SelectorEntry const *a = av, *b = bv;
	return strcmp(a->name, b->name);
}

// sort entries alphabetically
static void selector_sort_entries_by_name(Selector *s) {
	qsort(s->entries, s->n_entries, sizeof *s->entries, selectory_entry_cmp_name);
}

// returns a null-terminated UTF-8 string of the option selected, or NULL if none was.
// you should call free() on the return value.
static char *selector_update(Ted *ted, Selector *s) {
	char *ret = NULL;
	TextBuffer *line_buffer = &ted->line_buffer;

	ted->selector_open = s;
	for (u32 i = 0; i < s->n_entries; ++i) {
		// check if this entry was clicked on
		Rect entry_rect;
		if (selector_entry_pos(ted, s, i, &entry_rect)) {
			for (uint c = 0; c < ted->nmouse_clicks[SDL_BUTTON_LEFT]; ++c) {
				if (rect_contains_point(entry_rect, ted->mouse_clicks[SDL_BUTTON_LEFT][c])) {
					// this option was selected
					ret = str_dup(s->entries[i].name);
					break;
				}
			}
		}
	}

	if (line_buffer->line_buffer_submitted) {
		line_buffer->line_buffer_submitted = false;
		if (!ret) {
			if (s->enable_cursor) {
				// select this option
				if (s->cursor < s->n_entries)
					ret = str_dup(s->entries[s->cursor].name);

			} else {
				// user typed in submission
				ret = str32_to_utf8_cstr(buffer_get_line(line_buffer, 0));
			}
		}
	}

	// apply scroll
	float scroll_speed = 2.5f;
	s->scroll += scroll_speed * (float)ted->scroll_total_y;
	selector_clamp_scroll(ted, s);
	return ret;
}

// NOTE: also renders the line buffer
static void selector_render(Ted *ted, Selector *s) {
	const Settings *settings = ted_active_settings(ted);
	const u32 *colors = settings->colors;
	Font *font = ted->font;
	float padding = settings->padding;

	Rect bounds = s->bounds;

	for (u32 i = 0; i < s->n_entries; ++i) {
		// highlight entry user is hovering over/selecting
		Rect entry_rect;
		if (selector_entry_pos(ted, s, i, &entry_rect)) {
			rect_clip_to_rect(&entry_rect, bounds);
			if (rect_contains_point(entry_rect, ted->mouse_pos) || (s->enable_cursor && s->cursor == i)) {
				// highlight it
				gl_geometry_rect(entry_rect, colors[COLOR_MENU_HL]);
			}
		}
	}
	gl_geometry_draw();

	float x1, y1, x2, y2;
	rect_coords(bounds, &x1, &y1, &x2, &y2);
	// search buffer
	float line_buffer_height = ted_line_buffer_height(ted);
	buffer_render(&ted->line_buffer, rect4(x1, y1, x2, y1 + line_buffer_height));
	y1 += line_buffer_height;
		
	TextRenderState text_state = text_render_state_default;
	text_state.min_x = x1;
	text_state.max_x = x2;
	text_state.min_y = y1;
	text_state.max_y = y2;
	text_state.render = true;

	// render entries themselves
	SelectorEntry *entries = s->entries;
	for (u32 i = 0; i < s->n_entries; ++i) {
		Rect r;
		if (selector_entry_pos(ted, s, i, &r)) {
			SelectorEntry *entry = &entries[i];
			float x = r.pos.x, y = r.pos.y;
			text_state.x = x; text_state.y = y;
			
			// draw name
			rgba_u32_to_floats(entry->color, text_state.color);
			text_utf8_with_state(font, &text_state, entry->name);
			
			if (entry->detail) {
				// draw detail
				float detail_size = text_get_size_v2(font, entry->detail).x;
				TextRenderState detail_state = text_state;
				detail_state.x = maxd(text_state.x + 2 * padding, x2 - detail_size);
				
				rgba_u32_to_floats(colors[COLOR_COMMENT], detail_state.color);
				text_utf8_with_state(font, &detail_state, entry->detail);
			}
		}
	}
	text_render(font);
}


// clear the entries in the file selector
static void file_selector_clear_entries(FileSelector *fs) {
	for (u32 i = 0; i < fs->n_entries; ++i) {
		free(fs->entries[i].name);
		free(fs->entries[i].path);
	}
	free(fs->entries);
	arr_free(fs->sel.entries);
	fs->entries = NULL;
	fs->n_entries = fs->sel.n_entries = 0;
}

// returns true if there are any directory entries
static bool file_selector_any_directories(FileSelector const *fs) {
	FileEntry const *entries = fs->entries;
	for (u32 i = 0, n_entries = fs->n_entries; i < n_entries; ++i) {
		if (entries[i].type == FS_DIRECTORY)
			return true;
	}
	return false;
}

static void file_selector_free(FileSelector *fs) {
	file_selector_clear_entries(fs);
	memset(fs, 0, sizeof *fs);
}

static int qsort_file_entry_cmp(void *search_termv, void const *av, void const *bv) {
	char const *search_term = search_termv;
	FileEntry const *a = av, *b = bv;
	// put directories first
	if (a->type == FS_DIRECTORY && b->type != FS_DIRECTORY) {
		return -1;
	}
	if (a->type != FS_DIRECTORY && b->type == FS_DIRECTORY) {
		return +1;
	}
	if (search_term) {
		bool a_prefix = str_has_prefix(a->name, search_term);
		bool b_prefix = str_has_prefix(b->name, search_term);
		if (a_prefix && !b_prefix) {
			return -1;
		}
		if (b_prefix && !a_prefix) {
			return +1;
		}
	}
	
	return strcmp_case_insensitive(a->name, b->name);
}

static Status file_selector_cd_(Ted *ted, FileSelector *fs, char const *path, int symlink_depth);

// cd to the directory `name`. `name` cannot include any path separators.
static Status file_selector_cd1(Ted *ted, FileSelector *fs, char const *name, size_t name_len, int symlink_depth) {
	char *const cwd = fs->cwd;

	if (name_len == 0 || (name_len == 1 && name[0] == '.')) {
		// no name, or .
		return true;
	}

	if (name_len == 1 && name[0] == '~') {
		// just in case the user's HOME happens to be accidentally set to, e.g. '/foo/~', make
		// sure we don't recurse infinitely
		if (symlink_depth < 32) {
			return file_selector_cd_(ted, fs, ted->home, symlink_depth + 1);
		} else {
			return false;
		}
	}

	if (name_len == 2 && name[0] == '.' && name[1] == '.') {
		// ..
		char *last_sep = strrchr(cwd, PATH_SEPARATOR);
		if (last_sep) {
			if (last_sep == cwd // this is the starting "/" of a path
			#if _WIN32
				|| (last_sep == cwd + 2 && cwd[1] == ':') // this is the \ of C:\  .
			#endif
				) {
				last_sep[1] = '\0'; // include the last separator
			} else {
				last_sep[0] = '\0';
			}
		}
	} else {
		char path[TED_PATH_MAX];
		// join fs->cwd with name to get full path
		str_printf(path, TED_PATH_MAX, "%s%s%*s", cwd, 
				cwd[strlen(cwd) - 1] == PATH_SEPARATOR ?
				"" : PATH_SEPARATOR_STR,
				(int)name_len, name);
		if (fs_path_type(path) != FS_DIRECTORY) {
			// trying to cd to something that's not a directory!
			return false;
		}

		#if __unix__
		if (symlink_depth < 32) { // on my system, MAXSYMLINKS is 20, so this should be plenty
			char link_to[TED_PATH_MAX];
			ssize_t bytes = readlink(path, link_to, sizeof link_to);
			if (bytes != -1) {
				// this is a symlink
				link_to[bytes] = '\0';
				return file_selector_cd_(ted, fs, link_to, symlink_depth + 1);
			}
		} else {
			return false;
		}
		#else
		(void)symlink_depth;
		#endif

		// add path separator to end if not already there (which could happen in the case of /)
		if (cwd[strlen(cwd) - 1] != PATH_SEPARATOR)
			str_cat(cwd, sizeof fs->cwd, PATH_SEPARATOR_STR);
		// add name itself
		strn_cat(cwd, sizeof fs->cwd, name, name_len);
	}
	return true;
	
}

static Status file_selector_cd_(Ted *ted, FileSelector *fs, char const *path, int symlink_depth) {
	char *const cwd = fs->cwd;
	if (path[0] == '\0') return true;

	if (path_is_absolute(path)) {
		// absolute path (e.g. /foo, c:\foo)
		// start out by replacing cwd with the start of the absolute path
		if (path[0] == PATH_SEPARATOR) {
			char new_cwd[TED_PATH_MAX];
			// necessary because the full path of \ on windows isn't just \, it's c:\ or something
			ted_path_full(ted, PATH_SEPARATOR_STR, new_cwd, sizeof new_cwd);
			strcpy(cwd, new_cwd);
			path += 1;
		}
		#if _WIN32
		else {
			cwd[0] = '\0';
			strn_cat(cwd, sizeof fs->cwd, path, 3);
			path += 3;
		}
		#endif
	}

	char const *p = path;

	while (*p) {
		size_t len = strcspn(p, PATH_SEPARATOR_STR);
		if (!file_selector_cd1(ted, fs, p, len, symlink_depth))
			return false;
		p += len;
		p += strspn(p, PATH_SEPARATOR_STR);
	}
	
	return true;
}

// go to the directory `path`. make sure `path` only contains path separators like PATH_SEPARATOR, not any
// other members of ALL_PATH_SEPARATORS
// returns false if this path doesn't exist or isn't a directory
static bool file_selector_cd(Ted *ted, FileSelector *fs, char const *path) {
	fs->sel.cursor = 0;
	fs->sel.scroll = 0;
	return file_selector_cd_(ted, fs, path, 0);
}

// returns the name of the selected file, or NULL
// if none was selected. the returned pointer should be freed.
static char *file_selector_update(Ted *ted, FileSelector *fs) {

	TextBuffer *line_buffer = &ted->line_buffer;
	String32 search_term32 = buffer_get_line(line_buffer, 0);
	fs->sel.enable_cursor = !fs->create_menu || search_term32.len == 0;
	char *const cwd = fs->cwd;

	if (cwd[0] == '\0') {
		// set the file selector's directory to our current directory.
		str_cpy(cwd, sizeof fs->cwd, ted->cwd);
	}
	

	// check if the search term contains a path separator. if so, cd to the dirname.
	u32 first_path_sep = U32_MAX, last_path_sep = U32_MAX;
	for (u32 i = 0; i < search_term32.len; ++i) {
		char32_t c = search_term32.str[i];
		if (c < CHAR_MAX && strchr(ALL_PATH_SEPARATORS, (char)c)) {
			last_path_sep = i;
			if (first_path_sep == U32_MAX)
				first_path_sep = i;
		}
	}

	if (last_path_sep != U32_MAX) {
		bool include_last_path_sep = last_path_sep == 0;
		String32 dir_name32 = str32_substr(search_term32, 0, last_path_sep + include_last_path_sep);
		char *dir_name = str32_to_utf8_cstr(dir_name32);
		if (dir_name) {
			// replace all members of ALL_PATH_SEPARATORS with PATH_SEPARATOR in dir_name (i.e. change / to \ on windows)
			for (char *p = dir_name; *p; ++p)
				if (strchr(ALL_PATH_SEPARATORS, *p))
					*p = PATH_SEPARATOR;

			if (file_selector_cd(ted, fs, dir_name)) {
				buffer_delete_chars_at_pos(line_buffer, buffer_pos_start_of_file(line_buffer), last_path_sep + 1); // delete up to and including the last path separator
				buffer_clear_undo_redo(line_buffer);			
			} else {
				// delete up to first path separator in line buffer
				BufferPos pos = {.line = 0, .index = first_path_sep};
				size_t nchars = search_term32.len - first_path_sep;
				buffer_delete_chars_at_pos(line_buffer, pos, (i64)nchars);
			}
			free(dir_name);
		}
	}

	char *option_chosen = selector_update(ted, &fs->sel);

	if (option_chosen) {
		char path[TED_PATH_MAX];
		path_full(cwd, option_chosen, path, sizeof path);
		char *ret = NULL;

		switch (fs_path_type(path)) {
		case FS_NON_EXISTENT:
		case FS_OTHER:
			if (fs->create_menu)
				ret = str_dup(path); // you can only select non-existent things if this is a create menu
			break;
		case FS_FILE:
			// selected a file!
			ret = str_dup(path);
			break;
		case FS_DIRECTORY:
			// cd there
			file_selector_cd(ted, fs, option_chosen);
			buffer_clear(line_buffer);
			break;
		}
		
		free(option_chosen);
		if (ret) {
			return ret;
		}
	}
	
	// free previous entries
	file_selector_clear_entries(fs);
	// get new entries
	FsDirectoryEntry **files;
	// if the directory we're in gets deleted, go back a directory.
	for (u32 i = 0; i < 100; ++i) {
		files = fs_list_directory(cwd);
		if (files) break;
		else if (i == 0) {
			if (fs_path_type(cwd) == FS_NON_EXISTENT)
				ted_seterr(ted, "%s is not a directory.", cwd);
			else
				ted_seterr(ted, "Can't list directory %s.", cwd);
		}
		file_selector_cd(ted, fs, "..");
	}

	char *search_term = str32_to_utf8_cstr(buffer_get_line(line_buffer, 0));
	if (files) {
		u32 nfiles;
		for (nfiles = 0; files[nfiles]; ++nfiles);

		// filter entries
		bool increment = true;
		for (u32 i = 0; i < nfiles; i += increment, increment = true) {
			// remove if the file name does not contain the search term,
			bool remove = search_term && *search_term && !stristr(files[i]->name, search_term);
			// or if this is just the current directory
			remove |= streq(files[i]->name, ".");
			if (remove) {
				// remove this one
				free(files[i]);
				--nfiles;
				if (nfiles) {
					files[i] = files[nfiles];
				}
				increment = false;
			}
		}
		
		if (nfiles) {
			FileEntry *entries = ted_calloc(ted, nfiles, sizeof *entries);
			if (entries) {
				fs->n_entries = nfiles;
				if (fs->sel.cursor >= fs->n_entries) fs->sel.cursor = nfiles - 1;
				fs->entries = entries;
				for (u32 i = 0; i < nfiles; ++i) {
					char *name = files[i]->name;
					entries[i].name = str_dup(name);
					entries[i].type = files[i]->type;
					// add cwd to start of file name
					size_t path_size = strlen(name) + strlen(cwd) + 3;
					char *path = ted_calloc(ted, 1, path_size);
					if (path) {
						path_full(cwd, name, path, path_size);
						entries[i].path = path;
					} else {
						entries[i].path = NULL; // what can we do?
					}
					free(files[i]);
					files[i] = NULL;
				}
			}
			qsort_with_context(entries, nfiles, sizeof *entries, qsort_file_entry_cmp, search_term);
		}

		free(files);
		// set cwd to this (if no buffers are open, the "open" menu should use the last file selector's cwd)
		strbuf_cpy(ted->cwd, cwd);
	} else {
		ted_seterr(ted, "Couldn't list directory '%s'.", cwd);
	}
	
	free(search_term);
	return NULL;
}

static void file_selector_render(Ted *ted, FileSelector *fs) {
	Settings const *settings = ted_active_settings(ted);
	u32 const *colors = settings->colors;
	Rect bounds = fs->bounds;
	Font *font = ted->font;
	float padding = settings->padding;
	float char_height = text_font_char_height(font);
	float x1, y1, x2, y2;
	rect_coords(bounds, &x1, &y1, &x2, &y2);

	// current working directory
	text_utf8(font, fs->cwd, x1, y1, colors[COLOR_TEXT]);
	y1 += char_height + padding;

	// render selector
	Selector *sel = &fs->sel;
	sel->bounds = rect4(x1, y1, x2, y2); // selector takes up remaining space
	arr_clear(sel->entries);
	for (u32 i = 0; i < fs->n_entries; ++i) {
		ColorSetting color = 0;
		switch (fs->entries[i].type) {
		case FS_FILE:
			color = COLOR_TEXT;
			break;
		case FS_DIRECTORY:
			color = COLOR_TEXT_FOLDER;
			break;
		default:
			color = COLOR_TEXT_OTHER;
			break;
		}
		SelectorEntry entry = {.name = fs->entries[i].name, .color = colors[color]};
		arr_add(sel->entries, entry);
	}
	if (sel->entries)
		sel->n_entries = fs->n_entries;

	selector_render(ted, sel);
}

static v2 button_get_size(Ted *ted, char const *text) {
	float border_thickness = ted_active_settings(ted)->border_thickness;
	return v2_add_const(text_get_size_v2(ted->font, text), 2 * border_thickness);
}

static void button_render(Ted *ted, Rect button, char const *text, u32 color) {
	u32 const *colors = ted_active_settings(ted)->colors;
	
	if (rect_contains_point(button, ted->mouse_pos)) {
		// highlight button when hovering over it
		u32 new_color = (color & 0xffffff00) | ((color & 0xff) / 3);
		gl_geometry_rect(button, new_color);
	}
	
	gl_geometry_rect_border(button, ted_active_settings(ted)->border_thickness, colors[COLOR_BORDER]);
	gl_geometry_draw();

	v2 pos = rect_center(button);
	text_utf8_anchored(ted->font, text, pos.x, pos.y, color, ANCHOR_MIDDLE);
	text_render(ted->font);
}

// returns true if the button was clicked on.
static bool button_update(Ted *ted, Rect button) {
	for (u16 i = 0; i < ted->nmouse_clicks[SDL_BUTTON_LEFT]; ++i) {
		if (rect_contains_point(button, ted->mouse_clicks[SDL_BUTTON_LEFT][i])) {
			return true;
		}
	}
	return false;
}

typedef enum {
	POPUP_NONE,
	POPUP_YES = 1<<1,
	POPUP_NO = 1<<2,
	POPUP_CANCEL = 1<<3,
} PopupOption;

#define POPUP_YES_NO (POPUP_YES | POPUP_NO)
#define POPUP_YES_NO_CANCEL (POPUP_YES | POPUP_NO | POPUP_CANCEL)

static void popup_get_rects(Ted const *ted, u32 options, Rect *popup, Rect *button_yes, Rect *button_no, Rect *button_cancel) {
	float window_width = ted->window_width, window_height = ted->window_height;
	
	*popup = rect_centered(V2(window_width * 0.5f, window_height * 0.5f), V2(300, 200));
	float button_height = 30;
	u16 nbuttons = util_popcount(options);
	float button_width = popup->size.x / nbuttons;
	popup->size = v2_clamp(popup->size, v2_zero, V2(window_width, window_height));
	Rect r = rect(V2(popup->pos.x, rect_y2(*popup) - button_height), V2(button_width, button_height));
	if (options & POPUP_YES) {
		*button_yes = r;
		r = rect_translate(r, V2(button_width, 0));
	}
	if (options & POPUP_NO) {
		*button_no = r;
		r = rect_translate(r, V2(button_width, 0));
	}
	if (options & POPUP_CANCEL) {
		*button_cancel = r;
		r = rect_translate(r, V2(button_width, 0));
	}	
}

static PopupOption popup_update(Ted *ted, u32 options) {
	Rect r = {0}, button_yes = {0}, button_no = {0}, button_cancel = {0};
	popup_get_rects(ted, options, &r, &button_yes, &button_no, &button_cancel);
	if (button_update(ted, button_yes))
		return POPUP_YES;
	if (button_update(ted, button_no))
		return POPUP_NO;
	if (button_update(ted, button_cancel))
		return POPUP_CANCEL;
	return POPUP_NONE;
}

static void popup_render(Ted *ted, u32 options, char const *title, char const *body) {
	float window_width = ted->window_width;
	Font *font = ted->font;
	Font *font_bold = ted->font_bold;
	Rect r, button_yes, button_no, button_cancel;
	Settings const *settings = ted_active_settings(ted);
	u32 const *colors = settings->colors;
	float const char_height_bold = text_font_char_height(font_bold);
	float const padding = settings->padding;
	float const border_thickness = settings->border_thickness;
	
	popup_get_rects(ted, options, &r, &button_yes, &button_no, &button_cancel);
	
	
	float y = r.pos.y;
	
	// popup rectangle
	gl_geometry_rect(r, colors[COLOR_MENU_BG]);
	gl_geometry_rect_border(r, border_thickness, colors[COLOR_BORDER]);
	// line separating text from body
	gl_geometry_rect(rect(V2(r.pos.x, y + char_height_bold), V2(r.size.x, border_thickness)), colors[COLOR_BORDER]);
	
	if (options & POPUP_YES) button_render(ted, button_yes, "Yes", colors[COLOR_YES]);
	if (options & POPUP_NO) button_render(ted, button_no, "No", colors[COLOR_NO]);
	if (options & POPUP_CANCEL) button_render(ted, button_cancel, "Cancel", colors[COLOR_CANCEL]);

	// title text
	v2 title_size = {0};
	text_get_size(font_bold, title, &title_size.x, &title_size.y);
	v2 title_pos = v2_sub(V2(window_width * 0.5f, y), V2(title_size.x * 0.5f, 0));
	text_utf8(font_bold, title, title_pos.x, title_pos.y, colors[COLOR_TEXT]);
	text_render(font_bold);

	// body text
	float text_x1 = rect_x1(r) + padding;
	float text_x2 = rect_x2(r) - padding;

	TextRenderState state = text_render_state_default;
	state.min_x = text_x1;
	state.max_x = text_x2;
	state.wrap = true;
	state.x = text_x1;
	state.y = y + char_height_bold + padding;
	rgba_u32_to_floats(colors[COLOR_TEXT], state.color);
	text_utf8_with_state(font, &state, body);

	text_render(font);
}

// returns the size of the checkbox, including the label
static v2 checkbox_frame(Ted *ted, bool *value, char const *label, v2 pos) {
	Font *font = ted->font;
	float char_height = text_font_char_height(font);
	float checkbox_size = char_height;
	Settings const *settings = ted_active_settings(ted);
	u32 const *colors = settings->colors;
	float padding = settings->padding;
	float border_thickness = settings->border_thickness;
	
	Rect checkbox_rect = rect(pos, V2(checkbox_size, checkbox_size));
	
	for (u32 i = 0; i < ted->nmouse_clicks[SDL_BUTTON_LEFT]; ++i) {
		if (rect_contains_point(checkbox_rect, ted->mouse_clicks[SDL_BUTTON_LEFT][i])) {
			*value = !*value;
		}
	}
	
	checkbox_rect.pos = v2_add(checkbox_rect.pos, V2(0.5f, 0.5f));
	gl_geometry_rect_border(checkbox_rect, border_thickness, colors[COLOR_TEXT]);
	if (*value) {
		gl_geometry_rect(rect_shrink(checkbox_rect, border_thickness + 2), colors[COLOR_TEXT]);
	}
	
	v2 text_pos = v2_add(pos, V2(checkbox_size + padding * 0.5f, 0));
	v2 size = text_get_size_v2(font, label);
	text_utf8(font, label, text_pos.x, text_pos.y, colors[COLOR_TEXT]);
	
	gl_geometry_draw();
	text_render(font);
	return v2_add(size, V2(checkbox_size + padding * 0.5f, 0));
}