add alwayscenter

dwm-6.2/config.h

@@ -52,7 +52,7 @@ static const Rule rules[] = {
 	 */
 		/* class      instance    title       tags mask     isfloating   monitor    scratch key */
 { "Gimp",     NULL,       NULL,       0,            1,           -1,        0  },
-{ "firefox",  NULL,       NULL,       0 << 2,       0,           -1,        0  },
+{ "firefox",  NULL,       NULL,       1 << 1,       0,           -1,        0  },
 { NULL,       NULL,   "scratchpad",   0,            1,           -1,       's' },
 { NULL,       NULL,   "sp_volume",   0,            1,           -1,       'v' },
 	

dwm-6.2/dwm.c

@@ -1138,6 +1138,8 @@ manage(Window w, XWindowAttributes *wa)
 	updatewindowtype(c);
 	updatesizehints(c);
 	updatewmhints(c);
+	c->x = c->mon->mx + (c->mon->mw - WIDTH(c)) / 2;
+	c->y = c->mon->my + (c->mon->mh - HEIGHT(c)) / 2;
 	XSelectInput(dpy, w, EnterWindowMask|FocusChangeMask|PropertyChangeMask|StructureNotifyMask);
 	grabbuttons(c, 0);
 	if (!c->isfloating)

dwm-6.2/dwm.c.orig

@@ -132,6 +132,7 @@ struct Monitor {
 	Monitor *next;
 	Window barwin;
 	const Layout *lt[2];
+	unsigned int alttag;
 };
 
 typedef struct {
@@ -221,6 +222,7 @@ static void spawnscratch(const Arg *arg);
 static void tag(const Arg *arg);
 static void tagmon(const Arg *arg);
 static void tile(Monitor *);
+static void togglealttag();
 static void togglebar(const Arg *arg);
 static void togglefloating(const Arg *arg);
 static void togglescratch(const Arg *arg);
@@ -756,7 +758,7 @@ dirtomon(int dir)
 void
 drawbar(Monitor *m)
 {
-	int x, w, tw = 0;
+	int x, w, wdelta, sw, tw = 0;
 	int boxs = drw->fonts->h / 9;
 	int boxw = drw->fonts->h / 6 + 2;
 	unsigned int i, occ = 0, urg = 0;
@@ -777,8 +779,9 @@ drawbar(Monitor *m)
 	x = 0;
 	for (i = 0; i < LENGTH(tags); i++) {
 		w = TEXTW(tags[i]);
+		wdelta = selmon->alttag ? abs(TEXTW(tags[i]) - TEXTW(tagsalt[i])) / 2 : 0;
 		drw_setscheme(drw, scheme[m->tagset[m->seltags] & 1 << i ? SchemeSel : SchemeNorm]);
-		drw_text(drw, x, 0, w, bh, lrpad / 2, tags[i], urg & 1 << i);
+		drw_text(drw, x, 0, w, bh, wdelta + lrpad / 2, (selmon->alttag ? tagsalt[i] : tags[i]), urg & 1 << i);
 		if (occ & 1 << i)
 			drw_rect(drw, x + boxs, boxs, boxw, boxw,
 				m == selmon && selmon->sel && selmon->sel->tags & 1 << i,
@@ -1691,6 +1694,14 @@ seturgent(Client *c, int urg)
 	XFree(wmh);
 }
 
+void
+togglealttag()
+{
+	selmon->alttag = !selmon->alttag;
+	drawbar(selmon);
+}
+
+
 void
 showhide(Client *c)
 {

dwm-6.2/patches/dwm-alwayscenter-20200625-f04cac6.diff

@@ -0,0 +1,12 @@
+diff -up dwm/dwm.c dwmmod/dwm.c
+--- dwm/dwm.c	2020-06-25 00:21:30.383692180 -0300
++++ dwmmod/dwm.c	2020-06-25 00:20:35.643692330 -0300
+@@ -1057,6 +1057,8 @@ manage(Window w, XWindowAttributes *wa)
+ 	updatewindowtype(c);
+ 	updatesizehints(c);
+ 	updatewmhints(c);
++	c->x = c->mon->mx + (c->mon->mw - WIDTH(c)) / 2;
++	c->y = c->mon->my + (c->mon->mh - HEIGHT(c)) / 2;
+ 	XSelectInput(dpy, w, EnterWindowMask|FocusChangeMask|PropertyChangeMask|StructureNotifyMask);
+ 	grabbuttons(c, 0);
+ 	if (!c->isfloating)