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	shift-tools.c (2437B)
	---
	1 void
	2 shift(unsigned int *tag, int i)
	3 {
	4 if (i > 0) /* left circular shift */
	5 tag = ((tag << i) \| (*tag >> (LENGTH(tags) - i)));
	6 else /* right circular shift */
	7 tag = (tag >> (- i) \| *tag << (LENGTH(tags) + i));
	8 }
	9
	10 /* send a window to the next/prev tag */
	11 void
	12 shifttag(const Arg *arg)
	13 {
	14 Arg shifted = { .ui = selmon->tagset[selmon->seltags] };
	15
	16 if (!selmon->clients)
	17 return;
	18
	19 shift(&shifted.ui, arg->i);
	20 tag(&shifted);
	21 }
	22
	23 /* send a window to the next/prev tag that has a client, else it moves i…
	24 * the next/prev one. */
	25 void
	26 shifttagclients(const Arg *arg)
	27 {
	28 Arg shifted = { .ui = selmon->tagset[selmon->seltags] };
	29 Client *c;
	30 unsigned int tagmask = 0;
	31
	32 for (c = selmon->clients; c; c = c->next)
	33 tagmask = tagmask \| c->tags;
	34
	35 do
	36 shift(&shifted.ui, arg->i);
	37 while (tagmask && !(shifted.ui & tagmask));
	38
	39 tag(&shifted);
	40 }
	41
	42 /* view the next/prev tag */
	43 void
	44 shiftview(const Arg *arg)
	45 {
	46 Arg shifted = { .ui = selmon->tagset[selmon->seltags] };
	47
	48 shift(&shifted.ui, arg->i);
	49 view(&shifted);
	50 }
	51
	52 /* view the next/prev tag that has a client, else view the next/prev tag…
	53 void
	54 shiftviewclients(const Arg *arg)
	55 {
	56 Arg shifted = { .ui = selmon->tagset[selmon->seltags] };
	57 Client *c;
	58 unsigned int tagmask = 0;
	59
	60 for (c = selmon->clients; c; c = c->next)
	61 tagmask = tagmask \| c->tags;
	62
	63 do
	64 shift(&shifted.ui, arg->i);
	65 while (tagmask && !(shifted.ui & tagmask));
	66
	67 view(&shifted);
	68 }
	69
	70 /* move the active window to the next/prev tag and view it's new tag */
	71 void
	72 shiftboth(const Arg *arg)
	73 {
	74 Arg shifted = { .ui = selmon->tagset[selmon->seltags] };
	75
	76 shift(&shifted.ui, arg->i);
	77 tag(&shifted);
	78 view(&shifted);
	79 }
	80
	81 /* swaptags: https://dwm.suckless.org/patches/swaptags, used below */
	82 void
	83 swaptags(const Arg *arg)
	84 {
	85 Client *c;
	86 unsigned int newtag = arg->ui & TAGMASK;
	87 unsigned int curtag = selmon->tagset[selmon->seltags];
	88
	89 if (newtag == curtag \|\| !curtag \|\| (curtag & (curtag-1)))
	90 return;
	91
	92 for (c = selmon->clients; c != NULL; c = c->next) {
	93 if ((c->tags & newtag) \|\| (c->tags & curtag))
	94 c->tags ^= curtag ^ newtag;
	95 if (!c->tags)
	96 c->tags = newtag;
	97 }
	98
	99 //uncomment to 'view' the new swaped tag
	100 //selmon->tagset[selmon->seltags] = newtag;
	101
	102 focus(NULL);
	103 arrange(selmon);
	104 }
	105
	106 /* swaps "tags" (all the clients on it) with the next/prev tag */
	107 void
	108 shiftswaptags(const Arg *arg)
	109 {
	110 Arg shifted = { .ui = selmon->tagset[selmon->seltags] };
	111
	112 shift(&shifted.ui, arg->i);
	113 swaptags(&shifted);
	114 }