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Date:: Tue Jan 4 21:39:23 2005 UTC
Message:: clean up mkfile; fix winctlprint bug reported by peter canning
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1 #include <u.h>
2 #include <libc.h>
3 #include <draw.h>
4 #include <thread.h>
5 #include <cursor.h>
6 #include <mouse.h>
7 #include <keyboard.h>
8 #include <frame.h>
9 #include <fcall.h>
10 #include <plumb.h>
11 #include "dat.h"
12 #include "fns.h"
13 
14 int	winid;
15 
16 void
17 wininit(Window *w, Window *clone, Rectangle r)
18 {
19 	Rectangle r1, br;
20 	File *f;
21 	Reffont *rf;
22 	Rune *rp;
23 	int nc;
24 
25 	w->tag.w = w;
26 	w->body.w = w;
27 	w->id = ++winid;
28 	incref(&w->ref);
29 	if(globalincref)
30 		incref(&w->ref);
31 	w->ctlfid = ~0;
32 	w->utflastqid = -1;
33 	r1 = r;
34 	r1.max.y = r1.min.y + font->height;
35 	incref(&reffont.ref);
36 	f = fileaddtext(nil, &w->tag);
37 	textinit(&w->tag, f, r1, &reffont, tagcols);
38 	w->tag.what = Tag;
39 	/* tag is a copy of the contents, not a tracked image */
40 	if(clone){
41 		textdelete(&w->tag, 0, w->tag.file->b.nc, TRUE);
42 		nc = clone->tag.file->b.nc;
43 		rp = runemalloc(nc);
44 		bufread(&clone->tag.file->b, 0, rp, nc);
45 		textinsert(&w->tag, 0, rp, nc, TRUE);
46 		free(rp);
47 		filereset(w->tag.file);
48 		textsetselect(&w->tag, nc, nc);
49 	}
50 //assert(w->body.w == w);
51 	r1 = r;
52 	r1.min.y += font->height + 1;
53 	if(r1.max.y < r1.min.y)
54 		r1.max.y = r1.min.y;
55 	f = nil;
56 	if(clone){
57 		f = clone->body.file;
58 		w->body.org = clone->body.org;
59 		w->isscratch = clone->isscratch;
60 		rf = rfget(FALSE, FALSE, FALSE, clone->body.reffont->f->name);
61 	}else
62 		rf = rfget(FALSE, FALSE, FALSE, nil);
63 //assert(w->body.w == w);
64 	f = fileaddtext(f, &w->body);
65 	w->body.what = Body;
66 	textinit(&w->body, f, r1, rf, textcols);
67 	r1.min.y -= 1;
68 	r1.max.y = r1.min.y+1;
69 	draw(screen, r1, tagcols[BORD], nil, ZP);
70 	textscrdraw(&w->body);
71 	w->r = r;
72 	w->r.max.y = w->body.fr.r.max.y;
73 	br.min = w->tag.scrollr.min;
74 	br.max.x = br.min.x + Dx(button->r);
75 	br.max.y = br.min.y + Dy(button->r);
76 	draw(screen, br, button, nil, button->r.min);
77 	w->filemenu = TRUE;
78 	w->maxlines = w->body.fr.maxlines;
79 	w->autoindent = globalautoindent;
80 //assert(w->body.w == w);
81 	if(clone){
82 		w->dirty = clone->dirty;
83 		textsetselect(&w->body, clone->body.q0, clone->body.q1);
84 		winsettag(w);
85 		w->autoindent = clone->autoindent;
86 	}
87 }
88 
89 int
90 winresize(Window *w, Rectangle r, int safe)
91 {
92 	Rectangle r1;
93 	int y;
94 	Image *b;
95 	Rectangle br;
96 
97 	r1 = r;
98 	r1.max.y = r1.min.y + font->height;
99 	y = r1.max.y;
100 	if(!safe || !eqrect(w->tag.fr.r, r1)){
101 		y = textresize(&w->tag, r1);
102 		b = button;
103 		if(w->body.file->mod && !w->isdir && !w->isscratch)
104 			b = modbutton;
105 		br.min = w->tag.scrollr.min;
106 		br.max.x = br.min.x + Dx(b->r);
107 		br.max.y = br.min.y + Dy(b->r);
108 		draw(screen, br, b, nil, b->r.min);
109 	}
110 	if(!safe || !eqrect(w->body.fr.r, r1)){
111 		if(y+1+font->height > r.max.y){		/* no body */
112 			r1.min.y = y;
113 			r1.max.y = y;
114 			textresize(&w->body, r1);
115 			w->r = r;
116 			w->r.max.y = y;
117 			return y;
118 		}
119 		r1 = r;
120 		r1.min.y = y;
121 		r1.max.y = y + 1;
122 		draw(screen, r1, tagcols[BORD], nil, ZP);
123 		r1.min.y = y + 1;
124 		r1.max.y = r.max.y;
125 		y = textresize(&w->body, r1);
126 		w->r = r;
127 		w->r.max.y = y;
128 		textscrdraw(&w->body);
129 	}
130 	w->maxlines = min(w->body.fr.nlines, max(w->maxlines, w->body.fr.maxlines));
131 	return w->r.max.y;
132 }
133 
134 void
135 winlock1(Window *w, int owner)
136 {
137 	incref(&w->ref);
138 	qlock(&w->lk);
139 	w->owner = owner;
140 }
141 
142 void
143 winlock(Window *w, int owner)
144 {
145 	int i;
146 	File *f;
147 
148 //fprint(2, "winlock %p %d %lux\n", w, owner, getcallerpc(&w));
149 	f = w->body.file;
150 	for(i=0; i<f->ntext; i++)
151 		winlock1(f->text[i]->w, owner);
152 }
153 
154 void
155 winunlock(Window *w)
156 {
157 	int i;
158 	File *f;
159 
160 //fprint(2, "winunlock %p %lux\n", w, getcallerpc(&w));
161 	f = w->body.file;
162 	for(i=0; i<f->ntext; i++){
163 		w = f->text[i]->w;
164 		w->owner = 0;
165 		qunlock(&w->lk);
166 		winclose(w);
167 		/* winclose() can change up f->text; beware */
168 		if(f->ntext>0 && w != f->text[i]->w)
169 			--i;	/* winclose() deleted window */
170 	}
171 }
172 
173 void
174 winmousebut(Window *w)
175 {
176 	moveto(mousectl, divpt(addpt(w->tag.scrollr.min, w->tag.scrollr.max), 2));
177 }
178 
179 void
180 windirfree(Window *w)
181 {
182 	int i;
183 	Dirlist *dl;
184 
185 	if(w->isdir){
186 		for(i=0; i<w->ndl; i++){
187 			dl = w->dlp[i];
188 			free(dl->r);
189 			free(dl);
190 		}
191 		free(w->dlp);
192 	}
193 	w->dlp = nil;
194 	w->ndl = 0;
195 }
196 
197 void
198 winclose(Window *w)
199 {
200 	int i;
201 
202 	if(decref(&w->ref) == 0){
203 		windirfree(w);
204 		textclose(&w->tag);
205 		textclose(&w->body);
206 		if(activewin == w)
207 			activewin = nil;
208 		for(i=0; i<w->nincl; i++)
209 			free(w->incl[i]);
210 		free(w->incl);
211 		free(w->events);
212 		free(w);
213 	}
214 }
215 
216 void
217 windelete(Window *w)
218 {
219 	Xfid *x;
220 
221 	x = w->eventx;
222 	if(x){
223 		w->nevents = 0;
224 		free(w->events);
225 		w->events = nil;
226 		w->eventx = nil;
227 		sendp(x->c, nil);	/* wake him up */
228 	}
229 }
230 
231 void
232 winundo(Window *w, int isundo)
233 {
234 	Text *body;
235 	int i;
236 	File *f;
237 	Window *v;
238 
239 	w->utflastqid = -1;
240 	body = &w->body;
241 	fileundo(body->file, isundo, &body->q0, &body->q1);
242 	textshow(body, body->q0, body->q1, 1);
243 	f = body->file;
244 	for(i=0; i<f->ntext; i++){
245 		v = f->text[i]->w;
246 		v->dirty = (f->seq != v->putseq);
247 		if(v != w){
248 			v->body.q0 = v->body.fr.p0+v->body.org;
249 			v->body.q1 = v->body.fr.p1+v->body.org;
250 		}
251 	}
252 	winsettag(w);
253 }
254 
255 void
256 winsetname(Window *w, Rune *name, int n)
257 {
258 	Text *t;
259 	Window *v;
260 	int i;
261 	static Rune Lslashguide[] = { '/', 'g', 'u', 'i', 'd', 'e', 0 };
262 	static Rune Lpluserrors[] = { '+', 'E', 'r', 'r', 'o', 'r', 's', 0 };
263 	t = &w->body;
264 	if(runeeq(t->file->name, t->file->nname, name, n) == TRUE)
265 		return;
266 	w->isscratch = FALSE;
267 	if(n>=6 && runeeq(Lslashguide, 6, name+(n-6), 6))
268 		w->isscratch = TRUE;
269 	else if(n>=7 && runeeq(Lpluserrors, 7, name+(n-7), 7))
270 		w->isscratch = TRUE;
271 	filesetname(t->file, name, n);
272 	for(i=0; i<t->file->ntext; i++){
273 		v = t->file->text[i]->w;
274 		winsettag(v);
275 		v->isscratch = w->isscratch;
276 	}
277 }
278 
279 void
280 wintype(Window *w, Text *t, Rune r)
281 {
282 	int i;
283 
284 	texttype(t, r);
285 	if(t->what == Body)
286 		for(i=0; i<t->file->ntext; i++)
287 			textscrdraw(t->file->text[i]);
288 	winsettag(w);
289 }
290 
291 void
292 wincleartag(Window *w)
293 {
294 	int i, n;
295 	Rune *r;
296 
297 	/* w must be committed */
298 	n = w->tag.file->b.nc;
299 	r = runemalloc(n);
300 	bufread(&w->tag.file->b, 0, r, n);
301 	for(i=0; i<n; i++)
302 		if(r[i]==' ' || r[i]=='\t')
303 			break;
304 	for(; i<n; i++)
305 		if(r[i] == '|')
306 			break;
307 	if(i == n)
308 		return;
309 	i++;
310 	textdelete(&w->tag, i, n, TRUE);
311 	free(r);
312 	w->tag.file->mod = FALSE;
313 	if(w->tag.q0 > i)
314 		w->tag.q0 = i;
315 	if(w->tag.q1 > i)
316 		w->tag.q1 = i;
317 	textsetselect(&w->tag, w->tag.q0, w->tag.q1);
318 }
319 
320 void
321 winsettag1(Window *w)
322 {
323 	int i, j, k, n, bar, dirty;
324 	Rune *new, *old, *r;
325 	Image *b;
326 	uint q0, q1;
327 	Rectangle br;
328 	static Rune Ldelsnarf[] = { ' ', 'D', 'e', 'l', ' ',
329 		'S', 'n', 'a', 'r', 'f', 0 };
330 	static Rune Lundo[] = { ' ', 'U', 'n', 'd', 'o', 0 };
331 	static Rune Lredo[] = { ' ', 'R', 'e', 'd', 'o', 0 };
332 	static Rune Lget[] = { ' ', 'G', 'e', 't', 0 };
333 	static Rune Lput[] = { ' ', 'P', 'u', 't', 0 };
334 	static Rune Llook[] = { ' ', 'L', 'o', 'o', 'k', ' ', 0 };
335 	static Rune Lpipe[] = { ' ', '|', 0 };
336 	/* there are races that get us here with stuff in the tag cache, so we take extra care to sync it */
337 	if(w->tag.ncache!=0 || w->tag.file->mod)
338 		wincommit(w, &w->tag);	/* check file name; also guarantees we can modify tag contents */
339 	old = runemalloc(w->tag.file->b.nc+1);
340 	bufread(&w->tag.file->b, 0, old, w->tag.file->b.nc);
341 	old[w->tag.file->b.nc] = '\0';
342 	for(i=0; i<w->tag.file->b.nc; i++)
343 		if(old[i]==' ' || old[i]=='\t')
344 			break;
345 	if(runeeq(old, i, w->body.file->name, w->body.file->nname) == FALSE){
346 		textdelete(&w->tag, 0, i, TRUE);
347 		textinsert(&w->tag, 0, w->body.file->name, w->body.file->nname, TRUE);
348 		free(old);
349 		old = runemalloc(w->tag.file->b.nc+1);
350 		bufread(&w->tag.file->b, 0, old, w->tag.file->b.nc);
351 		old[w->tag.file->b.nc] = '\0';
352 	}
353 	new = runemalloc(w->body.file->nname+100);
354 	i = 0;
355 	runemove(new+i, w->body.file->name, w->body.file->nname);
356 	i += w->body.file->nname;
357 	runemove(new+i, Ldelsnarf, 10);
358 	i += 10;
359 	if(w->filemenu){
360 		if(w->body.file->delta.nc>0 || w->body.ncache){
361 			runemove(new+i, Lundo, 5);
362 			i += 5;
363 		}
364 		if(w->body.file->epsilon.nc > 0){
365 			runemove(new+i, Lredo, 5);
366 			i += 5;
367 		}
368 		dirty = w->body.file->nname && (w->body.ncache || w->body.file->seq!=w->putseq);
369 		if(!w->isdir && dirty){
370 			runemove(new+i, Lput, 4);
371 			i += 4;
372 		}
373 	}
374 	if(w->isdir){
375 		runemove(new+i, Lget, 4);
376 		i += 4;
377 	}
378 	runemove(new+i, Lpipe, 2);
379 	i += 2;
380 	r = runestrchr(old, '|');
381 	if(r)
382 		k = r-old+1;
383 	else{
384 		k = w->tag.file->b.nc;
385 		if(w->body.file->seq == 0){
386 			runemove(new+i, Llook, 6);
387 			i += 6;
388 		}
389 	}
390 	new[i] = 0;
391 	if(runestrlen(new) != i)
392 		fprint(2, "s '%S' len not %d\n", new, i);
393 	assert(i==runestrlen(new));
394 	if(runeeq(new, i, old, k) == FALSE){
395 		n = k;
396 		if(n > i)
397 			n = i;
398 		for(j=0; j<n; j++)
399 			if(old[j] != new[j])
400 				break;
401 		q0 = w->tag.q0;
402 		q1 = w->tag.q1;
403 		textdelete(&w->tag, j, k, TRUE);
404 		textinsert(&w->tag, j, new+j, i-j, TRUE);
405 		/* try to preserve user selection */
406 		r = runestrchr(old, '|');
407 		if(r){
408 			bar = r-old;
409 			if(q0 > bar){
410 				bar = (runestrchr(new, '|')-new)-bar;
411 				w->tag.q0 = q0+bar;
412 				w->tag.q1 = q1+bar;
413 			}
414 		}
415 	}
416 	free(old);
417 	free(new);
418 	w->tag.file->mod = FALSE;
419 	n = w->tag.file->b.nc+w->tag.ncache;
420 	if(w->tag.q0 > n)
421 		w->tag.q0 = n;
422 	if(w->tag.q1 > n)
423 		w->tag.q1 = n;
424 	textsetselect(&w->tag, w->tag.q0, w->tag.q1);
425 	b = button;
426 	if(!w->isdir && !w->isscratch && (w->body.file->mod || w->body.ncache))
427 		b = modbutton;
428 	br.min = w->tag.scrollr.min;
429 	br.max.x = br.min.x + Dx(b->r);
430 	br.max.y = br.min.y + Dy(b->r);
431 	draw(screen, br, b, nil, b->r.min);
432 }
433 
434 void
435 winsettag(Window *w)
436 {
437 	int i;
438 	File *f;
439 	Window *v;
440 
441 	f = w->body.file;
442 	for(i=0; i<f->ntext; i++){
443 		v = f->text[i]->w;
444 		if(v->col->safe || v->body.fr.maxlines>0)
445 			winsettag1(v);
446 	}
447 }
448 
449 void
450 wincommit(Window *w, Text *t)
451 {
452 	Rune *r;
453 	int i;
454 	File *f;
455 
456 	textcommit(t, TRUE);
457 	f = t->file;
458 	if(f->ntext > 1)
459 		for(i=0; i<f->ntext; i++)
460 			textcommit(f->text[i], FALSE);	/* no-op for t */
461 	if(t->what == Body)
462 		return;
463 	r = runemalloc(w->tag.file->b.nc);
464 	bufread(&w->tag.file->b, 0, r, w->tag.file->b.nc);
465 	for(i=0; i<w->tag.file->b.nc; i++)
466 		if(r[i]==' ' || r[i]=='\t')
467 			break;
468 	if(runeeq(r, i, w->body.file->name, w->body.file->nname) == FALSE){
469 		seq++;
470 		filemark(w->body.file);
471 		w->body.file->mod = TRUE;
472 		w->dirty = TRUE;
473 		winsetname(w, r, i);
474 		winsettag(w);
475 	}
476 	free(r);
477 }
478 
479 void
480 winaddincl(Window *w, Rune *r, int n)
481 {
482 	char *a;
483 	Dir *d;
484 	Runestr rs;
485 
486 	a = runetobyte(r, n);
487 	d = dirstat(a);
488 	if(d == nil){
489 		if(a[0] == '/')
490 			goto Rescue;
491 		rs = dirname(&w->body, r, n);
492 		r = rs.r;
493 		n = rs.nr;
494 		free(a);
495 		a = runetobyte(r, n);
496 		d = dirstat(a);
497 		if(d == nil)
498 			goto Rescue;
499 		r = runerealloc(r, n+1);
500 		r[n] = 0;
501 	}
502 	free(a);
503 	if((d->qid.type&QTDIR) == 0){
504 		free(d);
505 		warning(nil, "%s: not a directory\n", a);
506 		free(r);
507 		return;
508 	}
509 	free(d);
510 	w->nincl++;
511 	w->incl = realloc(w->incl, w->nincl*sizeof(Rune*));
512 	memmove(w->incl+1, w->incl, (w->nincl-1)*sizeof(Rune*));
513 	w->incl[0] = runemalloc(n+1);
514 	runemove(w->incl[0], r, n);
515 	free(r);
516 	return;
517 
518 Rescue:
519 	warning(nil, "%s: %r\n", a);
520 	free(r);
521 	free(a);
522 	return;
523 }
524 
525 int
526 winclean(Window *w, int conservative)	/* as it stands, conservative is always TRUE */
527 {
528 	if(w->isscratch || w->isdir)	/* don't whine if it's a guide file, error window, etc. */
529 		return TRUE;
530 	if(!conservative && w->nopen[QWevent]>0)
531 		return TRUE;
532 	if(w->dirty){
533 		if(w->body.file->nname)
534 			warning(nil, "%.*S modified\n", w->body.file->nname, w->body.file->name);
535 		else{
536 			if(w->body.file->b.nc < 100)	/* don't whine if it's too small */
537 				return TRUE;
538 			warning(nil, "unnamed file modified\n");
539 		}
540 		w->dirty = FALSE;
541 		return FALSE;
542 	}
543 	return TRUE;
544 }
545 
546 char*
547 winctlprint(Window *w, char *buf, int fonts)
548 {
549 	sprint(buf, "%11d %11d %11d %11d %11d ", w->id, w->tag.file->b.nc,
550 		w->body.file->b.nc, w->isdir, w->dirty);
551 	if(fonts)
552 		return smprint("%s%11d %q %11d ", buf, Dx(w->body.fr.r), 
553 			w->body.reffont->f->name, w->body.fr.maxtab);
554 	return buf;
555 }
556 
557 void
558 winevent(Window *w, char *fmt, ...)
559 {
560 	int n;
561 	char *b;
562 	Xfid *x;
563 	va_list arg;
564 
565 	if(w->nopen[QWevent] == 0)
566 		return;
567 	if(w->owner == 0)
568 		error("no window owner");
569 	va_start(arg, fmt);
570 	b = vsmprint(fmt, arg);
571 	va_end(arg);
572 	if(b == nil)
573 		error("vsmprint failed");
574 	n = strlen(b);
575 	w->events = realloc(w->events, w->nevents+1+n);
576 	w->events[w->nevents++] = w->owner;
577 	memmove(w->events+w->nevents, b, n);
578 	free(b);
579 	w->nevents += n;
580 	x = w->eventx;
581 	if(x){
582 		w->eventx = nil;
583 		sendp(x->c, nil);
584 	}
585 }