Added a distro symbol (similar to what you'll find in DEs). Not yet functional.

config.def.h

@@ -5,6 +5,7 @@ static const unsigned int borderpx  = 1;        /* border pixel of windows */
 static const unsigned int snap      = 32;       /* snap pixel */
 static const int showbar            = 1;        /* 0 means no bar */
 static const int topbar             = 1;        /* 0 means bottom bar */
+static const char *distrosymbol     = "";
 static const char *fonts[]          = { "monospace:size=10" };
 static const char dmenufont[]       = "monospace:size=10";
 static const char col_gray1[]       = "#222222";

dwm.c

@@ -111,9 +111,9 @@ typedef struct {
 	void (*arrange)(Monitor *);
 } Layout;
 
-typedef struct Pertag Pertag;
 struct Monitor {
 	char ltsymbol[16];
+    char distrosymbol[16];
 	float mfact;
 	int nmaster;
 	int num;
@@ -131,7 +131,6 @@ struct Monitor {
 	Monitor *next;
 	Window barwin;
 	const Layout *lt[2];
-	Pertag *pertag;
 };
 
 typedef struct {
@@ -274,15 +273,6 @@ static Window root, wmcheckwin;
 /* configuration, allows nested code to access above variables */
 #include "config.h"
 
-struct Pertag {
-	unsigned int curtag, prevtag; /* current and previous tag */
-	int nmasters[LENGTH(tags) + 1]; /* number of windows in master area */
-	float mfacts[LENGTH(tags) + 1]; /* mfacts per tag */
-	unsigned int sellts[LENGTH(tags) + 1]; /* selected layouts */
-	const Layout *ltidxs[LENGTH(tags) + 1][2]; /* matrix of tags and layouts indexes  */
-	int showbars[LENGTH(tags) + 1]; /* display bar for the current tag */
-};
-
 /* compile-time check if all tags fit into an unsigned int bit array. */
 struct NumTags { char limitexceeded[LENGTH(tags) > 31 ? -1 : 1]; };
 
@@ -442,7 +432,8 @@ buttonpress(XEvent *e)
 		focus(NULL);
 	}
 	if (ev->window == selmon->barwin) {
-		i = x = 0;
+        x = TEXTW(m->distrosymbol);
+		i = 0;
 		do
 			x += TEXTW(tags[i]);
 		while (ev->x >= x && ++i < LENGTH(tags));
@@ -643,7 +634,6 @@ Monitor *
 createmon(void)
 {
 	Monitor *m;
-	unsigned int i;
 
 	m = ecalloc(1, sizeof(Monitor));
 	m->tagset[0] = m->tagset[1] = 1;
@@ -654,20 +644,7 @@ createmon(void)
 	m->lt[0] = &layouts[0];
 	m->lt[1] = &layouts[1 % LENGTH(layouts)];
 	strncpy(m->ltsymbol, layouts[0].symbol, sizeof m->ltsymbol);
-	m->pertag = ecalloc(1, sizeof(Pertag));
-	m->pertag->curtag = m->pertag->prevtag = 1;
-
-	for (i = 0; i <= LENGTH(tags); i++) {
-		m->pertag->nmasters[i] = m->nmaster;
-		m->pertag->mfacts[i] = m->mfact;
-
-		m->pertag->ltidxs[i][0] = m->lt[0];
-		m->pertag->ltidxs[i][1] = m->lt[1];
-		m->pertag->sellts[i] = m->sellt;
-
-		m->pertag->showbars[i] = m->showbar;
-	}
-
+    strncpy(m->distrosymbol, distrosymbol, sizeof m->distrosymbol);
 	return m;
 }
 
@@ -741,6 +718,9 @@ drawbar(Monitor *m)
 			urg |= c->tags;
 	}
 	x = 0;
+	w = blw = TEXTW(m->distrosymbol);
+	drw_setscheme(drw, scheme[SchemeNorm]);
+	x = drw_text(drw, x, 0, w, bh, lrpad / 2, m->distrosymbol, 0);
 	for (i = 0; i < LENGTH(tags); i++) {
 		w = TEXTW(tags[i]);
 		drw_setscheme(drw, scheme[m->tagset[m->seltags] & 1 << i ? SchemeSel : SchemeNorm]);
@@ -993,7 +973,7 @@ grabkeys(void)
 void
 incnmaster(const Arg *arg)
 {
-	selmon->nmaster = selmon->pertag->nmasters[selmon->pertag->curtag] = MAX(selmon->nmaster + arg->i, 0);
+	selmon->nmaster = MAX(selmon->nmaster + arg->i, 0);
 	arrange(selmon);
 }
 
@@ -1528,9 +1508,9 @@ void
 setlayout(const Arg *arg)
 {
 	if (!arg || !arg->v || arg->v != selmon->lt[selmon->sellt])
-		selmon->sellt = selmon->pertag->sellts[selmon->pertag->curtag] ^= 1;
+		selmon->sellt ^= 1;
 	if (arg && arg->v)
-		selmon->lt[selmon->sellt] = selmon->pertag->ltidxs[selmon->pertag->curtag][selmon->sellt] = (Layout *)arg->v;
+		selmon->lt[selmon->sellt] = (Layout *)arg->v;
 	strncpy(selmon->ltsymbol, selmon->lt[selmon->sellt]->symbol, sizeof selmon->ltsymbol);
 	if (selmon->sel)
 		arrange(selmon);
@@ -1549,7 +1529,7 @@ setmfact(const Arg *arg)
 	f = arg->f < 1.0 ? arg->f + selmon->mfact : arg->f - 1.0;
 	if (f < 0.05 || f > 0.95)
 		return;
-	selmon->mfact = selmon->pertag->mfacts[selmon->pertag->curtag] = f;
+	selmon->mfact = f;
 	arrange(selmon);
 }
 
@@ -1728,7 +1708,7 @@ tile(Monitor *m)
 void
 togglebar(const Arg *arg)
 {
-	selmon->showbar = selmon->pertag->showbars[selmon->pertag->curtag] = !selmon->showbar;
+	selmon->showbar = !selmon->showbar;
 	updatebarpos(selmon);
 	XMoveResizeWindow(dpy, selmon->barwin, selmon->wx, selmon->by, selmon->ww, bh);
 	arrange(selmon);
@@ -1767,33 +1747,9 @@ void
 toggleview(const Arg *arg)
 {
 	unsigned int newtagset = selmon->tagset[selmon->seltags] ^ (arg->ui & TAGMASK);
-	int i;
 
 	if (newtagset) {
 		selmon->tagset[selmon->seltags] = newtagset;
-
-		if (newtagset == ~0) {
-			selmon->pertag->prevtag = selmon->pertag->curtag;
-			selmon->pertag->curtag = 0;
-		}
-
-		/* test if the user did not select the same tag */
-		if (!(newtagset & 1 << (selmon->pertag->curtag - 1))) {
-			selmon->pertag->prevtag = selmon->pertag->curtag;
-			for (i = 0; !(newtagset & 1 << i); i++) ;
-			selmon->pertag->curtag = i + 1;
-		}
-
-		/* apply settings for this view */
-		selmon->nmaster = selmon->pertag->nmasters[selmon->pertag->curtag];
-		selmon->mfact = selmon->pertag->mfacts[selmon->pertag->curtag];
-		selmon->sellt = selmon->pertag->sellts[selmon->pertag->curtag];
-		selmon->lt[selmon->sellt] = selmon->pertag->ltidxs[selmon->pertag->curtag][selmon->sellt];
-		selmon->lt[selmon->sellt^1] = selmon->pertag->ltidxs[selmon->pertag->curtag][selmon->sellt^1];
-
-		if (selmon->showbar != selmon->pertag->showbars[selmon->pertag->curtag])
-			togglebar(NULL);
-
 		focus(NULL);
 		arrange(selmon);
 	}
@@ -2088,37 +2044,11 @@ updatewmhints(Client *c)
 void
 view(const Arg *arg)
 {
-	int i;
-	unsigned int tmptag;
-
 	if ((arg->ui & TAGMASK) == selmon->tagset[selmon->seltags])
 		return;
 	selmon->seltags ^= 1; /* toggle sel tagset */
-	if (arg->ui & TAGMASK) {
+	if (arg->ui & TAGMASK)
 		selmon->tagset[selmon->seltags] = arg->ui & TAGMASK;
-		selmon->pertag->prevtag = selmon->pertag->curtag;
-
-		if (arg->ui == ~0)
-			selmon->pertag->curtag = 0;
-		else {
-			for (i = 0; !(arg->ui & 1 << i); i++) ;
-			selmon->pertag->curtag = i + 1;
-		}
-	} else {
-		tmptag = selmon->pertag->prevtag;
-		selmon->pertag->prevtag = selmon->pertag->curtag;
-		selmon->pertag->curtag = tmptag;
-	}
-
-	selmon->nmaster = selmon->pertag->nmasters[selmon->pertag->curtag];
-	selmon->mfact = selmon->pertag->mfacts[selmon->pertag->curtag];
-	selmon->sellt = selmon->pertag->sellts[selmon->pertag->curtag];
-	selmon->lt[selmon->sellt] = selmon->pertag->ltidxs[selmon->pertag->curtag][selmon->sellt];
-	selmon->lt[selmon->sellt^1] = selmon->pertag->ltidxs[selmon->pertag->curtag][selmon->sellt^1];
-
-	if (selmon->showbar != selmon->pertag->showbars[selmon->pertag->curtag])
-		togglebar(NULL);
-
 	focus(NULL);
 	arrange(selmon);
 }