Add pertag and fullgaps patches

config.def.h

@@ -12,6 +12,7 @@ static const char selbordercolor[]  = "#005577";
 static const char selbgcolor[]      = "#005577";
 static const char selfgcolor[]      = "#eeeeee";
 static const unsigned int borderpx  = 1;        /* border pixel of windows */
+static const Gap default_gap        = {.isgap = 1, .realgap = 10, .gappx = 10};
 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 */
@@ -91,6 +92,11 @@ static Key keys[] = {
 	{ MODKEY|ShiftMask,             XK_period, tagmon,         {.i = +1 } },
 	{ MODKEY,                       XK_s,      show,           {0} },
 	{ MODKEY,                       XK_h,      hide,           {0} },
+	{ MODKEY|ShiftMask,             XK_b,      toggleAttachBelow,           {0} },
+	{ MODKEY,                       XK_minus,  setgaps,        {.i = -5 } },
+	{ MODKEY,                       XK_equal,  setgaps,        {.i = +5 } },
+	{ MODKEY|ShiftMask,             XK_minus,  setgaps,        {.i = GAP_RESET } },
+	{ MODKEY|ShiftMask,             XK_equal,  setgaps,        {.i = GAP_TOGGLE} },
 	TAGKEYS(                        XK_1,                      0)
 	TAGKEYS(                        XK_2,                      1)
 	TAGKEYS(                        XK_3,                      2)

config.h

@@ -12,6 +12,7 @@ static const char selbordercolor[]  = "#005577";
 static const char selbgcolor[]      = "#005577";
 static const char selfgcolor[]      = "#eeeeee";
 static const unsigned int borderpx  = 1;        /* border pixel of windows */
+static const Gap default_gap        = {.isgap = 1, .realgap = 10, .gappx = 10};
 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 */
@@ -33,6 +34,7 @@ static const Rule rules[] = {
 static const float mfact     = 0.55; /* factor of master area size [0.05..0.95] */
 static const int nmaster     = 1;    /* number of clients in master area */
 static const int resizehints = 1;    /* 1 means respect size hints in tiled resizals */
+static int attachbelow = 1;    /* 1 means attach after the currently active window */
 
 static const Layout layouts[] = {
 	/* symbol     arrange function */
@@ -90,6 +92,11 @@ static Key keys[] = {
 	{ MODKEY|ShiftMask,             XK_period, tagmon,         {.i = +1 } },
 	{ MODKEY|ShiftMask,                       XK_s,      show,           {0} },
 	{ MODKEY|ShiftMask,             XK_h,      	hide,           {0} },
+	{ MODKEY|ShiftMask,             			XK_b,      	toggleAttachBelow,           {0} },
+	{ MODKEY,                       XK_minus,  setgaps,        {.i = -5 } },
+	{ MODKEY,                       XK_equal,  setgaps,        {.i = +5 } },
+	{ MODKEY|ShiftMask,             XK_minus,  setgaps,        {.i = GAP_RESET } },
+	{ MODKEY|ShiftMask,             XK_equal,  setgaps,        {.i = GAP_TOGGLE} },
 	TAGKEYS(                        XK_1,                      0)
 	TAGKEYS(                        XK_2,                      1)
 	TAGKEYS(                        XK_3,                      2)

dwm-fullgaps-6.2.diff

@@ -1,95 +0,0 @@
-diff --git a/config.def.h b/config.def.h
-index 1c0b587..38d2f6c 100644
---- a/config.def.h
-+++ b/config.def.h
-@@ -2,6 +2,7 @@
- 
- /* appearance */
- static const unsigned int borderpx  = 1;        /* border pixel of windows */
-+static const unsigned int gappx     = 5;        /* gaps between 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 */
-@@ -84,6 +85,9 @@ static Key keys[] = {
- 	{ MODKEY,                       XK_period, focusmon,       {.i = +1 } },
- 	{ MODKEY|ShiftMask,             XK_comma,  tagmon,         {.i = -1 } },
- 	{ MODKEY|ShiftMask,             XK_period, tagmon,         {.i = +1 } },
-+	{ MODKEY,                       XK_minus,  setgaps,        {.i = -1 } },
-+	{ MODKEY,                       XK_equal,  setgaps,        {.i = +1 } },
-+	{ MODKEY|ShiftMask,             XK_equal,  setgaps,        {.i = 0  } },
- 	TAGKEYS(                        XK_1,                      0)
- 	TAGKEYS(                        XK_2,                      1)
- 	TAGKEYS(                        XK_3,                      2)
-diff --git a/dwm.c b/dwm.c
-index 4465af1..4363627 100644
---- a/dwm.c
-+++ b/dwm.c
-@@ -119,6 +119,7 @@ struct Monitor {
- 	int by;               /* bar geometry */
- 	int mx, my, mw, mh;   /* screen size */
- 	int wx, wy, ww, wh;   /* window area  */
-+	int gappx;            /* gaps between windows */
- 	unsigned int seltags;
- 	unsigned int sellt;
- 	unsigned int tagset[2];
-@@ -199,6 +200,7 @@ static void sendmon(Client *c, Monitor *m);
- static void setclientstate(Client *c, long state);
- static void setfocus(Client *c);
- static void setfullscreen(Client *c, int fullscreen);
-+static void setgaps(const Arg *arg);
- static void setlayout(const Arg *arg);
- static void setmfact(const Arg *arg);
- static void setup(void);
-@@ -638,6 +640,7 @@ createmon(void)
- 	m->nmaster = nmaster;
- 	m->showbar = showbar;
- 	m->topbar = topbar;
-+	m->gappx = gappx;
- 	m->lt[0] = &layouts[0];
- 	m->lt[1] = &layouts[1 % LENGTH(layouts)];
- 	strncpy(m->ltsymbol, layouts[0].symbol, sizeof m->ltsymbol);
-@@ -1497,6 +1500,16 @@ setfullscreen(Client *c, int fullscreen)
- 	}
- }
- 
-+void
-+setgaps(const Arg *arg)
-+{
-+	if ((arg->i == 0) || (selmon->gappx + arg->i < 0))
-+		selmon->gappx = 0;
-+	else
-+		selmon->gappx += arg->i;
-+	arrange(selmon);
-+}
-+
- void
- setlayout(const Arg *arg)
- {
-@@ -1683,16 +1696,16 @@ tile(Monitor *m)
- 	if (n > m->nmaster)
- 		mw = m->nmaster ? m->ww * m->mfact : 0;
- 	else
--		mw = m->ww;
--	for (i = my = ty = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++)
-+		mw = m->ww - m->gappx;
-+	for (i = 0, my = ty = m->gappx, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++)
- 		if (i < m->nmaster) {
--			h = (m->wh - my) / (MIN(n, m->nmaster) - i);
--			resize(c, m->wx, m->wy + my, mw - (2*c->bw), h - (2*c->bw), 0);
--			my += HEIGHT(c);
-+			h = (m->wh - my) / (MIN(n, m->nmaster) - i) - m->gappx;
-+			resize(c, m->wx + m->gappx, m->wy + my, mw - (2*c->bw) - m->gappx, h - (2*c->bw), 0);
-+			my += HEIGHT(c) + m->gappx;
- 		} else {
--			h = (m->wh - ty) / (n - i);
--			resize(c, m->wx + mw, m->wy + ty, m->ww - mw - (2*c->bw), h - (2*c->bw), 0);
--			ty += HEIGHT(c);
-+			h = (m->wh - ty) / (n - i) - m->gappx;
-+			resize(c, m->wx + mw + m->gappx, m->wy + ty, m->ww - mw - (2*c->bw) - 2*m->gappx, h - (2*c->bw), 0);
-+			ty += HEIGHT(c) + m->gappx;
- 		}
- }
- 
-2.20.1
-

dwm-fullgaps-toggle-20200830.diff

@@ -0,0 +1,148 @@
+diff --git a/config.def.h b/config.def.h
+index 1c0b587..b172f63 100644
+--- a/config.def.h
++++ b/config.def.h
+@@ -2,6 +2,7 @@
+ 
+ /* appearance */
+ static const unsigned int borderpx  = 1;        /* border pixel of windows */
++static const Gap default_gap        = {.isgap = 1, .realgap = 10, .gappx = 10};
+ 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 */
+@@ -84,6 +85,10 @@ static Key keys[] = {
+ 	{ MODKEY,                       XK_period, focusmon,       {.i = +1 } },
+ 	{ MODKEY|ShiftMask,             XK_comma,  tagmon,         {.i = -1 } },
+ 	{ MODKEY|ShiftMask,             XK_period, tagmon,         {.i = +1 } },
++	{ MODKEY,                       XK_minus,  setgaps,        {.i = -5 } },
++	{ MODKEY,                       XK_equal,  setgaps,        {.i = +5 } },
++	{ MODKEY|ShiftMask,             XK_minus,  setgaps,        {.i = GAP_RESET } },
++	{ MODKEY|ShiftMask,             XK_equal,  setgaps,        {.i = GAP_TOGGLE} },
+ 	TAGKEYS(                        XK_1,                      0)
+ 	TAGKEYS(                        XK_2,                      1)
+ 	TAGKEYS(                        XK_3,                      2)
+diff --git a/dwm.c b/dwm.c
+index 664c527..25bc9b7 100644
+--- a/dwm.c
++++ b/dwm.c
+@@ -57,6 +57,9 @@
+ #define TAGMASK                 ((1 << LENGTH(tags)) - 1)
+ #define TEXTW(X)                (drw_fontset_getwidth(drw, (X)) + lrpad)
+ 
++#define GAP_TOGGLE 100
++#define GAP_RESET  0
++
+ /* enums */
+ enum { CurNormal, CurResize, CurMove, CurLast }; /* cursor */
+ enum { SchemeNorm, SchemeSel }; /* color schemes */
+@@ -111,6 +114,12 @@ typedef struct {
+ 	void (*arrange)(Monitor *);
+ } Layout;
+ 
++typedef struct {
++	int isgap;
++	int realgap;
++	int gappx;
++} Gap;
++
+ struct Monitor {
+ 	char ltsymbol[16];
+ 	float mfact;
+@@ -119,6 +128,7 @@ struct Monitor {
+ 	int by;               /* bar geometry */
+ 	int mx, my, mw, mh;   /* screen size */
+ 	int wx, wy, ww, wh;   /* window area  */
++	Gap *gap;
+ 	unsigned int seltags;
+ 	unsigned int sellt;
+ 	unsigned int tagset[2];
+@@ -169,6 +179,7 @@ static void focus(Client *c);
+ static void focusin(XEvent *e);
+ static void focusmon(const Arg *arg);
+ static void focusstack(const Arg *arg);
++static void gap_copy(Gap *to, const Gap *from);
+ static Atom getatomprop(Client *c, Atom prop);
+ static int getrootptr(int *x, int *y);
+ static long getstate(Window w);
+@@ -200,6 +211,7 @@ static void sendmon(Client *c, Monitor *m);
+ static void setclientstate(Client *c, long state);
+ static void setfocus(Client *c);
+ static void setfullscreen(Client *c, int fullscreen);
++static void setgaps(const Arg *arg);
+ static void setlayout(const Arg *arg);
+ static void setmfact(const Arg *arg);
+ static void setup(void);
+@@ -639,6 +651,8 @@ createmon(void)
+ 	m->nmaster = nmaster;
+ 	m->showbar = showbar;
+ 	m->topbar = topbar;
++	m->gap = malloc(sizeof(Gap));
++	gap_copy(m->gap, &default_gap);
+ 	m->lt[0] = &layouts[0];
+ 	m->lt[1] = &layouts[1 % LENGTH(layouts)];
+ 	strncpy(m->ltsymbol, layouts[0].symbol, sizeof m->ltsymbol);
+@@ -1498,6 +1512,35 @@ setfullscreen(Client *c, int fullscreen)
+ 	}
+ }
+ 
++void
++gap_copy(Gap *to, const Gap *from)
++{
++	to->isgap   = from->isgap;
++	to->realgap = from->realgap;
++	to->gappx   = from->gappx;
++}
++
++void
++setgaps(const Arg *arg)
++{
++	Gap *p = selmon->gap;
++	switch(arg->i)
++	{
++		case GAP_TOGGLE:
++			p->isgap = 1 - p->isgap;
++			break;
++		case GAP_RESET:
++			gap_copy(p, &default_gap);
++			break;
++		default:
++			p->realgap += arg->i;
++			p->isgap = 1;
++	}
++	p->realgap = MAX(p->realgap, 0);
++	p->gappx = p->realgap * p->isgap;
++	arrange(selmon);
++}
++
+ void
+ setlayout(const Arg *arg)
+ {
+@@ -1684,18 +1727,18 @@ tile(Monitor *m)
+ 	if (n > m->nmaster)
+ 		mw = m->nmaster ? m->ww * m->mfact : 0;
+ 	else
+-		mw = m->ww;
+-	for (i = my = ty = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++)
++		mw = m->ww - m->gap->gappx;
++	for (i = 0, my = ty = m->gap->gappx, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++)
+ 		if (i < m->nmaster) {
+-			h = (m->wh - my) / (MIN(n, m->nmaster) - i);
+-			resize(c, m->wx, m->wy + my, mw - (2*c->bw), h - (2*c->bw), 0);
+-			if (my + HEIGHT(c) < m->wh)
+-				my += HEIGHT(c);
++			h = (m->wh - my) / (MIN(n, m->nmaster) - i) - m->gap->gappx;
++			resize(c, m->wx + m->gap->gappx, m->wy + my, mw - (2*c->bw) - m->gap->gappx, h - (2*c->bw), 0);
++			if (my + HEIGHT(c) + m->gap->gappx < m->wh)
++				my += HEIGHT(c) + m->gap->gappx;
+ 		} else {
+-			h = (m->wh - ty) / (n - i);
+-			resize(c, m->wx + mw, m->wy + ty, m->ww - mw - (2*c->bw), h - (2*c->bw), 0);
+-			if (ty + HEIGHT(c) < m->wh)
+-				ty += HEIGHT(c);
++			h = (m->wh - ty) / (n - i) - m->gap->gappx;
++			resize(c, m->wx + mw + m->gap->gappx, m->wy + ty, m->ww - mw - (2*c->bw) - 2*m->gap->gappx, h - (2*c->bw), 0);
++			if (ty + HEIGHT(c) + m->gap->gappx < m->wh)
++				ty += HEIGHT(c) + m->gap->gappx;
+ 		}
+ }
+ 

dwm-pertag-20200914-61bb8b2.diff

@@ -0,0 +1,177 @@
+diff --git a/dwm.c b/dwm.c
+index 664c527..ac8e4ec 100644
+--- a/dwm.c
++++ b/dwm.c
+@@ -111,6 +111,7 @@ typedef struct {
+ 	void (*arrange)(Monitor *);
+ } Layout;
+ 
++typedef struct Pertag Pertag;
+ struct Monitor {
+ 	char ltsymbol[16];
+ 	float mfact;
+@@ -130,6 +131,7 @@ struct Monitor {
+ 	Monitor *next;
+ 	Window barwin;
+ 	const Layout *lt[2];
++	Pertag *pertag;
+ };
+ 
+ typedef struct {
+@@ -272,6 +274,15 @@ 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]; };
+ 
+@@ -632,6 +643,7 @@ Monitor *
+ createmon(void)
+ {
+ 	Monitor *m;
++	unsigned int i;
+ 
+ 	m = ecalloc(1, sizeof(Monitor));
+ 	m->tagset[0] = m->tagset[1] = 1;
+@@ -642,6 +654,20 @@ 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;
++	}
++
+ 	return m;
+ }
+ 
+@@ -967,7 +993,7 @@ grabkeys(void)
+ void
+ incnmaster(const Arg *arg)
+ {
+-	selmon->nmaster = MAX(selmon->nmaster + arg->i, 0);
++	selmon->nmaster = selmon->pertag->nmasters[selmon->pertag->curtag] = MAX(selmon->nmaster + arg->i, 0);
+ 	arrange(selmon);
+ }
+ 
+@@ -1502,9 +1528,9 @@ void
+ setlayout(const Arg *arg)
+ {
+ 	if (!arg || !arg->v || arg->v != selmon->lt[selmon->sellt])
+-		selmon->sellt ^= 1;
++		selmon->sellt = selmon->pertag->sellts[selmon->pertag->curtag] ^= 1;
+ 	if (arg && arg->v)
+-		selmon->lt[selmon->sellt] = (Layout *)arg->v;
++		selmon->lt[selmon->sellt] = selmon->pertag->ltidxs[selmon->pertag->curtag][selmon->sellt] = (Layout *)arg->v;
+ 	strncpy(selmon->ltsymbol, selmon->lt[selmon->sellt]->symbol, sizeof selmon->ltsymbol);
+ 	if (selmon->sel)
+ 		arrange(selmon);
+@@ -1523,7 +1549,7 @@ 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 = f;
++	selmon->mfact = selmon->pertag->mfacts[selmon->pertag->curtag] = f;
+ 	arrange(selmon);
+ }
+ 
+@@ -1702,7 +1728,7 @@ tile(Monitor *m)
+ void
+ togglebar(const Arg *arg)
+ {
+-	selmon->showbar = !selmon->showbar;
++	selmon->showbar = selmon->pertag->showbars[selmon->pertag->curtag] = !selmon->showbar;
+ 	updatebarpos(selmon);
+ 	XMoveResizeWindow(dpy, selmon->barwin, selmon->wx, selmon->by, selmon->ww, bh);
+ 	arrange(selmon);
+@@ -1741,9 +1767,33 @@ 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);
+ 	}
+@@ -2038,11 +2088,37 @@ 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);
+ }

dwm.c

@@ -58,6 +58,9 @@
 #define TAGMASK                 ((1 << LENGTH(tags)) - 1)
 #define TEXTW(X)                (drw_text(drw, 0, 0, 0, 0, (X), 0) + drw->fonts[0]->h)
 
+#define GAP_TOGGLE 100
+#define GAP_RESET  0
+
 /* enums */
 enum { CurNormal, CurResize, CurMove, CurLast }; /* cursor */
 enum { SchemeNorm, SchemeSel, SchemeHid, SchemeLast }; /* color schemes */
@@ -112,6 +115,13 @@ typedef struct {
 	void (*arrange)(Monitor *);
 } Layout;
 
+typedef struct {
+	int isgap;
+	int realgap;
+	int gappx;
+} Gap;
+
+typedef struct Pertag Pertag;
 struct Monitor {
 	char ltsymbol[16];
 	float mfact;
@@ -122,6 +132,7 @@ struct Monitor {
 	int bt;               /* number of tasks */
 	int mx, my, mw, mh;   /* screen size */
 	int wx, wy, ww, wh;   /* window area  */
+	Gap *gap;
 	unsigned int seltags;
 	unsigned int sellt;
 	unsigned int tagset[2];
@@ -134,6 +145,7 @@ struct Monitor {
 	Monitor *next;
 	Window barwin;
 	const Layout *lt[2];
+	Pertag *pertag;
 };
 
 typedef struct {
@@ -145,6 +157,7 @@ typedef struct {
 	int monitor;
 } Rule;
 
+
 /* function declarations */
 static void applyrules(Client *c);
 static int applysizehints(Client *c, int *x, int *y, int *w, int *h, int interact);
@@ -178,6 +191,7 @@ static void focusmon(const Arg *arg);
 static void focusstackvis(const Arg *arg);
 static void focusstackhid(const Arg *arg);
 static void focusstack(int inc, int vis);
+static void gap_copy(Gap *to, const Gap *from);
 static int getrootptr(int *x, int *y);
 static long getstate(Window w);
 static int gettextprop(Window w, Atom atom, char *text, unsigned int size);
@@ -210,6 +224,7 @@ static void sendmon(Client *c, Monitor *m);
 static void setclientstate(Client *c, long state);
 static void setfocus(Client *c);
 static void setfullscreen(Client *c, int fullscreen);
+static void setgaps(const Arg *arg);
 static void setlayout(const Arg *arg);
 static void setmfact(const Arg *arg);
 static void setup(void);
@@ -285,6 +300,15 @@ static Window root;
 /* 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]; };
 
@@ -690,6 +714,7 @@ Monitor *
 createmon(void)
 {
 	Monitor *m;
+	unsigned int i;
 
 	m = ecalloc(1, sizeof(Monitor));
 	m->tagset[0] = m->tagset[1] = 1;
@@ -697,9 +722,25 @@ createmon(void)
 	m->nmaster = nmaster;
 	m->showbar = showbar;
 	m->topbar = topbar;
+	m->gap = malloc(sizeof(Gap));
+	gap_copy(m->gap, &default_gap);
 	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;
+	}
+
 	return m;
 }
 
@@ -1121,7 +1162,7 @@ hidewin(Client *c) {
 void
 incnmaster(const Arg *arg)
 {
-	selmon->nmaster = MAX(selmon->nmaster + arg->i, 0);
+	selmon->nmaster = selmon->pertag->nmasters[selmon->pertag->curtag] = MAX(selmon->nmaster + arg->i, 0);
 	arrange(selmon);
 }
 
@@ -1672,13 +1713,42 @@ setfullscreen(Client *c, int fullscreen)
 	}
 }
 
+void
+gap_copy(Gap *to, const Gap *from)
+{
+	to->isgap   = from->isgap;
+	to->realgap = from->realgap;
+	to->gappx   = from->gappx;
+}
+
+void
+setgaps(const Arg *arg)
+{
+	Gap *p = selmon->gap;
+	switch(arg->i)
+	{
+		case GAP_TOGGLE:
+			p->isgap = 1 - p->isgap;
+			break;
+		case GAP_RESET:
+			gap_copy(p, &default_gap);
+			break;
+		default:
+			p->realgap += arg->i;
+			p->isgap = 1;
+	}
+	p->realgap = MAX(p->realgap, 0);
+	p->gappx = p->realgap * p->isgap;
+	arrange(selmon);
+}
+
 void
 setlayout(const Arg *arg)
 {
 	if (!arg || !arg->v || arg->v != selmon->lt[selmon->sellt])
-		selmon->sellt ^= 1;
+		selmon->sellt = selmon->pertag->sellts[selmon->pertag->curtag] ^= 1;
 	if (arg && arg->v)
-		selmon->lt[selmon->sellt] = (Layout *)arg->v;
+		selmon->lt[selmon->sellt] = selmon->pertag->ltidxs[selmon->pertag->curtag][selmon->sellt] = (Layout *)arg->v;
 	strncpy(selmon->ltsymbol, selmon->lt[selmon->sellt]->symbol, sizeof selmon->ltsymbol);
 	if (selmon->sel)
 		arrange(selmon);
@@ -1697,7 +1767,7 @@ setmfact(const Arg *arg)
 	f = arg->f < 1.0 ? arg->f + selmon->mfact : arg->f - 1.0;
 	if (f < 0.1 || f > 0.9)
 		return;
-	selmon->mfact = f;
+	selmon->mfact = selmon->pertag->mfacts[selmon->pertag->curtag] = f;
 	arrange(selmon);
 }
 
@@ -1853,23 +1923,25 @@ tile(Monitor *m)
 	if (n > m->nmaster)
 		mw = m->nmaster ? m->ww * m->mfact : 0;
 	else
-		mw = m->ww;
-	for (i = my = ty = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++)
+		mw = m->ww - m->gap->gappx;
+	for (i = 0, my = ty = m->gap->gappx, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++)
 		if (i < m->nmaster) {
-			h = (m->wh - my) / (MIN(n, m->nmaster) - i);
-			resize(c, m->wx, m->wy + my, mw - (2*c->bw), h - (2*c->bw), 0);
-			my += HEIGHT(c);
+			h = (m->wh - my) / (MIN(n, m->nmaster) - i) - m->gap->gappx;
+			resize(c, m->wx + m->gap->gappx, m->wy + my, mw - (2*c->bw) - m->gap->gappx, h - (2*c->bw), 0);
+			if (my + HEIGHT(c) + m->gap->gappx < m->wh)
+				my += HEIGHT(c) + m->gap->gappx;
 		} else {
-			h = (m->wh - ty) / (n - i);
-			resize(c, m->wx + mw, m->wy + ty, m->ww - mw - (2*c->bw), h - (2*c->bw), 0);
-			ty += HEIGHT(c);
+			h = (m->wh - ty) / (n - i) - m->gap->gappx;
+			resize(c, m->wx + mw + m->gap->gappx, m->wy + ty, m->ww - mw - (2*c->bw) - 2*m->gap->gappx, h - (2*c->bw), 0);
+			if (ty + HEIGHT(c) + m->gap->gappx < m->wh)
+				ty += HEIGHT(c) + m->gap->gappx;
 		}
 }
 
 void
 togglebar(const Arg *arg)
 {
-	selmon->showbar = !selmon->showbar;
+	selmon->showbar = selmon->pertag->showbars[selmon->pertag->curtag] = !selmon->showbar;
 	updatebarpos(selmon);
 	XMoveResizeWindow(dpy, selmon->barwin, selmon->wx, selmon->by, selmon->ww, bh);
 	arrange(selmon);
@@ -1908,9 +1980,33 @@ 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);
 	}
@@ -2229,11 +2325,37 @@ 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);
 }