X-Git-Url: https://git.xinqibao.xyz/dwm.git/blobdiff_plain/f22d047d4139ef889e95aabd0103e11357193e5a..64243ab05b1eb6edfd2ede98a318de7379b7dc2e:/dwm.c?ds=inline

diff --git a/dwm.c b/dwm.c
index 4a8c2a9..12ad997 100644
--- a/dwm.c
+++ b/dwm.c
@@ -51,15 +51,19 @@
 #define LENGTH(x)       (sizeof x / sizeof x[0])
 #define MAXTAGLEN       16
 #define MOUSEMASK       (BUTTONMASK|PointerMotionMask)
+#define TAGMASK         ((int)((1LL << LENGTH(tags)) - 1))
+#define TEXTW(x)        (textnw(x, strlen(x)) + dc.font.height)
+#define VISIBLE(x)      ((x)->tags & tagset[seltags])
 
 /* enums */
-enum { BarTop, BarBot, BarOff, BarLast };               /* bar appearance */
 enum { CurNormal, CurResize, CurMove, CurLast };        /* cursor */
 enum { ColBorder, ColFG, ColBG, ColLast };              /* color */
 enum { NetSupported, NetWMName, NetLast };              /* EWMH atoms */
 enum { WMProtocols, WMDelete, WMName, WMState, WMLast };/* default atoms */
 
 /* typedefs */
+typedef unsigned int uint;
+typedef unsigned long ulong;
 typedef struct Client Client;
 struct Client {
 	char name[256];
@@ -67,9 +71,9 @@ struct Client {
 	int basew, baseh, incw, inch, maxw, maxh, minw, minh;
 	int minax, maxax, minay, maxay;
 	long flags;
-	unsigned int bw, oldbw;
-	Bool isbanned, isfixed, isfloating, isurgent;
-	Bool *tags;
+	int bw, oldbw;
+	Bool isbanned, isfixed, isfloating, ismax, isurgent;
+	uint tags;
 	Client *next;
 	Client *prev;
 	Client *snext;
@@ -78,8 +82,8 @@ struct Client {
 
 typedef struct {
 	int x, y, w, h;
-	unsigned long norm[ColLast];
-	unsigned long sel[ColLast];
+	ulong norm[ColLast];
+	ulong sel[ColLast];
 	Drawable drawable;
 	GC gc;
 	struct {
@@ -92,23 +96,22 @@ typedef struct {
 } DC; /* draw context */
 
 typedef struct {
-	unsigned long mod;
+	uint mod;
 	KeySym keysym;
-	void (*func)(const char *arg);
-	const char *arg;
+	void (*func)(const void *arg);
+	const void *arg;
 } Key;
 
 typedef struct {
 	const char *symbol;
 	void (*arrange)(void);
-	void (*updategeom)(void);
 } Layout;
 
 typedef struct {
 	const char *class;
 	const char *instance;
 	const char *title;
-	const char *tag;
+	uint tags;
 	Bool isfloating;
 } Rule;
 
@@ -117,7 +120,6 @@ void applyrules(Client *c);
 void arrange(void);
 void attach(Client *c);
 void attachstack(Client *c);
-void ban(Client *c);
 void buttonpress(XEvent *e);
 void checkotherwm(void);
 void cleanup(void);
@@ -128,54 +130,52 @@ void destroynotify(XEvent *e);
 void detach(Client *c);
 void detachstack(Client *c);
 void drawbar(void);
-void drawsquare(Bool filled, Bool empty, Bool invert, unsigned long col[ColLast]);
-void drawtext(const char *text, unsigned long col[ColLast], Bool invert);
-void *emallocz(unsigned int size);
+void drawsquare(Bool filled, Bool empty, Bool invert, ulong col[ColLast]);
+void drawtext(const char *text, ulong col[ColLast], Bool invert);
 void enternotify(XEvent *e);
 void eprint(const char *errstr, ...);
 void expose(XEvent *e);
 void focus(Client *c);
 void focusin(XEvent *e);
-void focusnext(const char *arg);
-void focusprev(const char *arg);
+void focusnext(const void *arg);
+void focusprev(const void *arg);
 Client *getclient(Window w);
-unsigned long getcolor(const char *colstr);
+ulong getcolor(const char *colstr);
 long getstate(Window w);
-Bool gettextprop(Window w, Atom atom, char *text, unsigned int size);
+Bool gettextprop(Window w, Atom atom, char *text, uint size);
 void grabbuttons(Client *c, Bool focused);
 void grabkeys(void);
-unsigned int idxoftag(const char *t);
 void initfont(const char *fontstr);
-Bool isoccupied(unsigned int t);
+Bool isoccupied(uint t);
 Bool isprotodel(Client *c);
-Bool isurgent(unsigned int t);
-Bool isvisible(Client *c);
+Bool isurgent(uint t);
 void keypress(XEvent *e);
-void killclient(const char *arg);
+void killclient(const void *arg);
 void manage(Window w, XWindowAttributes *wa);
 void mappingnotify(XEvent *e);
 void maprequest(XEvent *e);
 void movemouse(Client *c);
-Client *nextunfloating(Client *c);
+Client *nexttiled(Client *c);
 void propertynotify(XEvent *e);
-void quit(const char *arg);
+void quit(const void *arg);
 void resize(Client *c, int x, int y, int w, int h, Bool sizehints);
 void resizemouse(Client *c);
 void restack(void);
 void run(void);
 void scan(void);
 void setclientstate(Client *c, long state);
+void setmfact(const void *arg);
 void setup(void);
-void spawn(const char *arg);
-void tag(const char *arg);
-unsigned int textnw(const char *text, unsigned int len);
-unsigned int textw(const char *text);
-void togglebar(const char *arg);
-void togglefloating(const char *arg);
-void togglelayout(const char *arg);
-void toggletag(const char *arg);
-void toggleview(const char *arg);
-void unban(Client *c);
+void spawn(const void *arg);
+void tag(const void *arg);
+uint textnw(const char *text, uint len);
+void tile(void);
+void togglebar(const void *arg);
+void togglefloating(const void *arg);
+void togglelayout(const void *arg);
+void togglemax(const void *arg);
+void toggletag(const void *arg);
+void toggleview(const void *arg);
 void unmanage(Client *c);
 void unmapnotify(XEvent *e);
 void updatebar(void);
@@ -183,20 +183,20 @@ void updategeom(void);
 void updatesizehints(Client *c);
 void updatetitle(Client *c);
 void updatewmhints(Client *c);
-void view(const char *arg);
-void viewprevtag(const char *arg);
+void view(const void *arg);
+void viewprevtag(const void *arg);
 int xerror(Display *dpy, XErrorEvent *ee);
 int xerrordummy(Display *dpy, XErrorEvent *ee);
 int xerrorstart(Display *dpy, XErrorEvent *ee);
-void zoom(const char *arg);
+void zoom(const void *arg);
 
 /* variables */
 char stext[256];
 int screen, sx, sy, sw, sh;
-int bx, by, bw, bh, blw, wx, wy, ww, wh;
-int seltags = 0;
+int by, bh, blw, wx, wy, ww, wh;
+uint seltags = 0;
 int (*xerrorxlib)(Display *, XErrorEvent *);
-unsigned int numlockmask = 0;
+uint numlockmask = 0;
 void (*handler[LASTEvent]) (XEvent *) = {
 	[ButtonPress] = buttonpress,
 	[ConfigureRequest] = configurerequest,
@@ -212,9 +212,10 @@ void (*handler[LASTEvent]) (XEvent *) = {
 	[UnmapNotify] = unmapnotify
 };
 Atom wmatom[WMLast], netatom[NetLast];
+Bool ismax = False;
 Bool otherwm, readin;
 Bool running = True;
-Bool *tagset[2];
+uint tagset[] = {1, 1}; /* after start, first tag is selected */
 Client *clients = NULL;
 Client *sel = NULL;
 Client *stack = NULL;
@@ -227,14 +228,14 @@ Window root, barwin;
 
 /* configuration, allows nested code to access above variables */
 #include "config.h"
-#define TAGSZ (LENGTH(tags) * sizeof(Bool))
 
-/* function implementations */
+/* compile-time check if all tags fit into an uint bit array. */
+struct NumTags { char limitexceeded[sizeof(uint) * 8 < LENGTH(tags) ? -1 : 1]; };
 
+/* function implementations */
 void
 applyrules(Client *c) {
-	unsigned int i;
-	Bool matched = False;
+	uint i;
 	Rule *r;
 	XClassHint ch = { 0 };
 
@@ -246,18 +247,15 @@ applyrules(Client *c) {
 		&& (!r->class || (ch.res_class && strstr(ch.res_class, r->class)))
 		&& (!r->instance || (ch.res_name && strstr(ch.res_name, r->instance)))) {
 			c->isfloating = r->isfloating;
-			if(r->tag) {
-				c->tags[idxoftag(r->tag)] = True;
-				matched = True;
-			}
+			c->tags |= r->tags & TAGMASK;
 		}
 	}
 	if(ch.res_class)
 		XFree(ch.res_class);
 	if(ch.res_name)
 		XFree(ch.res_name);
-	if(!matched)
-		memcpy(c->tags, tagset[seltags], TAGSZ);
+	if(!c->tags)
+		c->tags = tagset[seltags];
 }
 
 void
@@ -265,16 +263,17 @@ arrange(void) {
 	Client *c;
 
 	for(c = clients; c; c = c->next)
-		if(isvisible(c)) {
-			unban(c);
+		if(VISIBLE(c)) {
 			if(!lt->arrange || c->isfloating)
 				resize(c, c->x, c->y, c->w, c->h, True);
 		}
-		else
-			ban(c);
+		else if(!c->isbanned) {
+			XMoveWindow(dpy, c->win, c->x + 2 * sw, c->y);
+			c->isbanned = True;
+		}
 
 	focus(NULL);
-	if(lt->arrange)
+	if(lt->arrange && !ismax)
 		lt->arrange();
 	restack();
 }
@@ -293,59 +292,50 @@ attachstack(Client *c) {
 	stack = c;
 }
 
-void
-ban(Client *c) {
-	if(c->isbanned)
-		return;
-	XMoveWindow(dpy, c->win, c->x + 2 * sw, c->y);
-	c->isbanned = True;
-}
-
 void
 buttonpress(XEvent *e) {
-	unsigned int i, x;
+	uint i, x, mask;
 	Client *c;
 	XButtonPressedEvent *ev = &e->xbutton;
 
 	if(ev->window == barwin) {
 		x = 0;
 		for(i = 0; i < LENGTH(tags); i++) {
-			x += textw(tags[i]);
+			x += TEXTW(tags[i]);
 			if(ev->x < x) {
+				mask = 1 << i;
 				if(ev->button == Button1) {
 					if(ev->state & MODKEY)
-						tag(tags[i]);
+						tag(&mask);
 					else
-						view(tags[i]);
+						view(&mask);
 				}
 				else if(ev->button == Button3) {
 					if(ev->state & MODKEY)
-						toggletag(tags[i]);
+						toggletag(&mask);
 					else
-						toggleview(tags[i]);
+						toggleview(&mask);
 				}
 				return;
 			}
 		}
-		if((ev->x < x + blw) && ev->button == Button1) 
-			togglelayout(NULL);
+		if(ev->x < x + blw) {
+			if(ev->button == Button1) 
+				togglelayout(NULL);
+			else if(ev->button == Button3) 
+				togglemax(NULL);
+		}
 	}
 	else if((c = getclient(ev->window))) {
 		focus(c);
-		if(CLEANMASK(ev->state) != MODKEY)
+		if(CLEANMASK(ev->state) != MODKEY || ismax)
 			return;
-		if(ev->button == Button1) {
-			restack();
+		if(ev->button == Button1)
 			movemouse(c);
-		}
-		else if(ev->button == Button2) {
-			if(lt->arrange && c->isfloating)
-				togglefloating(NULL);
-		}
-		else if(ev->button == Button3 && !c->isfixed) {
-			restack();
+		else if(ev->button == Button2)
+			togglefloating(NULL);
+		else if(ev->button == Button3 && !c->isfixed)
 			resizemouse(c);
-		}
 	}
 }
 
@@ -359,7 +349,6 @@ checkotherwm(void) {
 	XSync(dpy, False);
 	if(otherwm)
 		eprint("dwm: another window manager is already running\n");
-	XSync(dpy, False);
 	XSetErrorHandler(NULL);
 	xerrorxlib = XSetErrorHandler(xerror);
 	XSync(dpy, False);
@@ -368,10 +357,9 @@ checkotherwm(void) {
 void
 cleanup(void) {
 	close(STDIN_FILENO);
-	while(stack) {
-		unban(stack);
+	view(NULL);
+	while(stack)
 		unmanage(stack);
-	}
 	if(dc.font.set)
 		XFreeFontSet(dpy, dc.font.set);
 	else
@@ -443,7 +431,7 @@ configurerequest(XEvent *e) {
 			if((ev->value_mask & (CWX|CWY))
 			&& !(ev->value_mask & (CWWidth|CWHeight)))
 				configure(c);
-			if(isvisible(c))
+			if(VISIBLE(c))
 				XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h);
 		}
 		else
@@ -496,31 +484,31 @@ drawbar(void) {
 	Client *c;
 
 	dc.x = 0;
-	for(c = stack; c && !isvisible(c); c = c->snext);
+	for(c = stack; c && !VISIBLE(c); c = c->snext);
 	for(i = 0; i < LENGTH(tags); i++) {
-		dc.w = textw(tags[i]);
-		if(tagset[seltags][i]) {
+		dc.w = TEXTW(tags[i]);
+		if(tagset[seltags] & 1 << i) {
 			drawtext(tags[i], dc.sel, isurgent(i));
-			drawsquare(c && c->tags[i], isoccupied(i), isurgent(i), dc.sel);
+			drawsquare(c && c->tags & 1 << i, isoccupied(i), isurgent(i), dc.sel);
 		}
 		else {
 			drawtext(tags[i], dc.norm, isurgent(i));
-			drawsquare(c && c->tags[i], isoccupied(i), isurgent(i), dc.norm);
+			drawsquare(c && c->tags & 1 << i, isoccupied(i), isurgent(i), dc.norm);
 		}
 		dc.x += dc.w;
 	}
 	if(blw > 0) {
 		dc.w = blw;
-		drawtext(lt->symbol, dc.norm, False);
+		drawtext(lt->symbol, dc.norm, ismax);
 		x = dc.x + dc.w;
 	}
 	else
 		x = dc.x;
-	dc.w = textw(stext);
-	dc.x = bw - dc.w;
+	dc.w = TEXTW(stext);
+	dc.x = ww - dc.w;
 	if(dc.x < x) {
 		dc.x = x;
-		dc.w = bw - x;
+		dc.w = ww - x;
 	}
 	drawtext(stext, dc.norm, False);
 	if((dc.w = dc.x - x) > bh) {
@@ -532,12 +520,12 @@ drawbar(void) {
 		else
 			drawtext(NULL, dc.norm, False);
 	}
-	XCopyArea(dpy, dc.drawable, barwin, dc.gc, 0, 0, bw, bh, 0, 0);
+	XCopyArea(dpy, dc.drawable, barwin, dc.gc, 0, 0, ww, bh, 0, 0);
 	XSync(dpy, False);
 }
 
 void
-drawsquare(Bool filled, Bool empty, Bool invert, unsigned long col[ColLast]) {
+drawsquare(Bool filled, Bool empty, Bool invert, ulong col[ColLast]) {
 	int x;
 	XGCValues gcv;
 	XRectangle r = { dc.x, dc.y, dc.w, dc.h };
@@ -558,9 +546,9 @@ drawsquare(Bool filled, Bool empty, Bool invert, unsigned long col[ColLast]) {
 }
 
 void
-drawtext(const char *text, unsigned long col[ColLast], Bool invert) {
+drawtext(const char *text, ulong col[ColLast], Bool invert) {
 	int x, y, w, h;
-	unsigned int len, olen;
+	uint len, olen;
 	XRectangle r = { dc.x, dc.y, dc.w, dc.h };
 	char buf[256];
 
@@ -594,15 +582,6 @@ drawtext(const char *text, unsigned long col[ColLast], Bool invert) {
 		XDrawString(dpy, dc.drawable, dc.gc, x, y, buf, len);
 }
 
-void *
-emallocz(unsigned int size) {
-	void *res = calloc(1, size);
-
-	if(!res)
-		eprint("fatal: could not malloc() %u bytes\n", size);
-	return res;
-}
-
 void
 enternotify(XEvent *e) {
 	Client *c;
@@ -636,8 +615,8 @@ expose(XEvent *e) {
 
 void
 focus(Client *c) {
-	if(!c || (c && !isvisible(c)))
-		for(c = stack; c && !isvisible(c); c = c->snext);
+	if(!c || (c && !VISIBLE(c)))
+		for(c = stack; c && !VISIBLE(c); c = c->snext);
 	if(sel && sel != c) {
 		grabbuttons(sel, False);
 		XSetWindowBorder(dpy, sel->win, dc.norm[ColBorder]);
@@ -649,6 +628,10 @@ focus(Client *c) {
 	}
 	sel = c;
 	if(c) {
+		if(ismax) {
+			XMoveResizeWindow(dpy, c->win, wx, wy, ww - 2 * c->bw, wh - 2 * c->bw);
+			c->ismax = True;
+		}
 		XSetWindowBorder(dpy, c->win, dc.sel[ColBorder]);
 		XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime);
 	}
@@ -666,14 +649,14 @@ focusin(XEvent *e) { /* there are some broken focus acquiring clients */
 }
 
 void
-focusnext(const char *arg) {
+focusnext(const void *arg) {
 	Client *c;
 
 	if(!sel)
 		return;
-	for(c = sel->next; c && !isvisible(c); c = c->next);
+	for(c = sel->next; c && !VISIBLE(c); c = c->next);
 	if(!c)
-		for(c = clients; c && !isvisible(c); c = c->next);
+		for(c = clients; c && !VISIBLE(c); c = c->next);
 	if(c) {
 		focus(c);
 		restack();
@@ -681,15 +664,15 @@ focusnext(const char *arg) {
 }
 
 void
-focusprev(const char *arg) {
+focusprev(const void *arg) {
 	Client *c;
 
 	if(!sel)
 		return;
-	for(c = sel->prev; c && !isvisible(c); c = c->prev);
+	for(c = sel->prev; c && !VISIBLE(c); c = c->prev);
 	if(!c) {
 		for(c = clients; c && c->next; c = c->next);
-		for(; c && !isvisible(c); c = c->prev);
+		for(; c && !VISIBLE(c); c = c->prev);
 	}
 	if(c) {
 		focus(c);
@@ -705,7 +688,7 @@ getclient(Window w) {
 	return c;
 }
 
-unsigned long
+ulong
 getcolor(const char *colstr) {
 	Colormap cmap = DefaultColormap(dpy, screen);
 	XColor color;
@@ -720,7 +703,7 @@ getstate(Window w) {
 	int format, status;
 	long result = -1;
 	unsigned char *p = NULL;
-	unsigned long n, extra;
+	ulong n, extra;
 	Atom real;
 
 	status = XGetWindowProperty(dpy, w, wmatom[WMState], 0L, 2L, False, wmatom[WMState],
@@ -734,7 +717,7 @@ getstate(Window w) {
 }
 
 Bool
-gettextprop(Window w, Atom atom, char *text, unsigned int size) {
+gettextprop(Window w, Atom atom, char *text, uint size) {
 	char **list = NULL;
 	int n;
 	XTextProperty name;
@@ -762,8 +745,8 @@ gettextprop(Window w, Atom atom, char *text, unsigned int size) {
 void
 grabbuttons(Client *c, Bool focused) {
 	int i, j;
-	unsigned int buttons[]   = { Button1, Button2, Button3 };
-	unsigned int modifiers[] = { MODKEY, MODKEY|LockMask, MODKEY|numlockmask,
+	uint buttons[]   = { Button1, Button2, Button3 };
+	uint modifiers[] = { MODKEY, MODKEY|LockMask, MODKEY|numlockmask,
 				MODKEY|numlockmask|LockMask} ;
 
 	XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
@@ -779,7 +762,7 @@ grabbuttons(Client *c, Bool focused) {
 
 void
 grabkeys(void) {
-	unsigned int i, j;
+	uint i, j;
 	KeyCode code;
 	XModifierKeymap *modmap;
 
@@ -806,14 +789,6 @@ grabkeys(void) {
 	}
 }
 
-unsigned int
-idxoftag(const char *t) {
-	unsigned int i;
-
-	for(i = 0; (i < LENGTH(tags)) && t && strcmp(tags[i], t); i++);
-	return (i < LENGTH(tags)) ? i : 0;
-}
-
 void
 initfont(const char *fontstr) {
 	char *def, **missing;
@@ -855,11 +830,11 @@ initfont(const char *fontstr) {
 }
 
 Bool
-isoccupied(unsigned int t) {
+isoccupied(uint t) {
 	Client *c;
 
 	for(c = clients; c; c = c->next)
-		if(c->tags[t])
+		if(c->tags & 1 << t)
 			return True;
 	return False;
 }
@@ -880,28 +855,18 @@ isprotodel(Client *c) {
 }
 
 Bool
-isurgent(unsigned int t) {
+isurgent(uint t) {
 	Client *c;
 
 	for(c = clients; c; c = c->next)
-		if(c->isurgent && c->tags[t])
-			return True;
-	return False;
-}
-
-Bool
-isvisible(Client *c) {
-	unsigned int i;
-
-	for(i = 0; i < LENGTH(tags); i++)
-		if(c->tags[i] && tagset[seltags][i])
+		if(c->isurgent && c->tags & 1 << t)
 			return True;
 	return False;
 }
 
 void
 keypress(XEvent *e) {
-	unsigned int i;
+	uint i;
 	KeySym keysym;
 	XKeyEvent *ev;
 
@@ -909,15 +874,13 @@ keypress(XEvent *e) {
 	keysym = XKeycodeToKeysym(dpy, (KeyCode)ev->keycode, 0);
 	for(i = 0; i < LENGTH(keys); i++)
 		if(keysym == keys[i].keysym
-		&& CLEANMASK(keys[i].mod) == CLEANMASK(ev->state))
-		{
-			if(keys[i].func)
-				keys[i].func(keys[i].arg);
-		}
+		   && CLEANMASK(keys[i].mod) == CLEANMASK(ev->state)
+		   && keys[i].func)
+			keys[i].func(keys[i].arg);
 }
 
 void
-killclient(const char *arg) {
+killclient(const void *arg) {
 	XEvent ev;
 
 	if(!sel)
@@ -942,8 +905,8 @@ manage(Window w, XWindowAttributes *wa) {
 	Window trans;
 	XWindowChanges wc;
 
-	c = emallocz(sizeof(Client));
-	c->tags = emallocz(TAGSZ);
+	if(!(c = calloc(1, sizeof(Client))))
+		eprint("fatal: could not calloc() %u bytes\n", sizeof(Client));
 	c->win = w;
 
 	/* geometry */
@@ -958,12 +921,12 @@ manage(Window w, XWindowAttributes *wa) {
 		c->bw = wa->border_width;
 	}
 	else {
-		if(c->x + c->w + 2 * c->bw > wx + ww)
-			c->x = wx + ww - c->w - 2 * c->bw;
-		if(c->y + c->h + 2 * c->bw > wy + wh)
-			c->y = wy + wh - c->h - 2 * c->bw;
-		c->x = MAX(c->x, wx);
-		c->y = MAX(c->y, wy);
+		if(c->x + c->w + 2 * c->bw > sx + sw)
+			c->x = sx + sw - c->w - 2 * c->bw;
+		if(c->y + c->h + 2 * c->bw > sy + sh)
+			c->y = sy + sh - c->h - 2 * c->bw;
+		c->x = MAX(c->x, sx);
+		c->y = MAX(c->y, by == 0 ? bh : sy);
 		c->bw = borderpx;
 	}
 
@@ -978,7 +941,7 @@ manage(Window w, XWindowAttributes *wa) {
 	if((rettrans = XGetTransientForHint(dpy, w, &trans) == Success))
 		for(t = clients; t && t->win != trans; t = t->next);
 	if(t)
-		memcpy(c->tags, t->tags, TAGSZ);
+		c->tags = t->tags;
 	else
 		applyrules(c);
 	if(!c->isfloating)
@@ -986,7 +949,6 @@ manage(Window w, XWindowAttributes *wa) {
 	attach(c);
 	attachstack(c);
 	XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h); /* some windows require this */
-	ban(c);
 	XMapWindow(dpy, c->win);
 	setclientstate(c, NormalState);
 	arrange();
@@ -1017,10 +979,11 @@ maprequest(XEvent *e) {
 void
 movemouse(Client *c) {
 	int x1, y1, ocx, ocy, di, nx, ny;
-	unsigned int dui;
+	uint dui;
 	Window dummy;
 	XEvent ev;
 
+	restack();
 	ocx = nx = c->x;
 	ocy = ny = c->y;
 	if(XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
@@ -1063,8 +1026,8 @@ movemouse(Client *c) {
 }
 
 Client *
-nextunfloating(Client *c) {
-	for(; c && (c->isfloating || !isvisible(c)); c = c->next);
+nexttiled(Client *c) {
+	for(; c && (c->isfloating || !VISIBLE(c)); c = c->next);
 	return c;
 }
 
@@ -1101,7 +1064,7 @@ propertynotify(XEvent *e) {
 }
 
 void
-quit(const char *arg) {
+quit(const void *arg) {
 	readin = running = False;
 }
 
@@ -1156,7 +1119,12 @@ resize(Client *c, int x, int y, int w, int h, Bool sizehints) {
 		x = sx;
 	if(y + h + 2 * c->bw < sy)
 		y = sy;
-	if(c->x != x || c->y != y || c->w != w || c->h != h) {
+	if(h < bh)
+		h = bh;
+	if(w < bh)
+		w = bh;
+	if(c->x != x || c->y != y || c->w != w || c->h != h || c->isbanned || c->ismax) {
+		c->isbanned = c->ismax = False;
 		c->x = wc.x = x;
 		c->y = wc.y = y;
 		c->w = wc.width = w;
@@ -1175,6 +1143,7 @@ resizemouse(Client *c) {
 	int nw, nh;
 	XEvent ev;
 
+	restack();
 	ocx = c->x;
 	ocy = c->y;
 	if(XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
@@ -1222,13 +1191,13 @@ restack(void) {
 	drawbar();
 	if(!sel)
 		return;
-	if(sel->isfloating || !lt->arrange)
+	if(ismax || sel->isfloating || !lt->arrange)
 		XRaiseWindow(dpy, sel->win);
-	if(lt->arrange) {
+	if(!ismax && lt->arrange) {
 		wc.stack_mode = Below;
 		wc.sibling = barwin;
 		for(c = stack; c; c = c->snext)
-			if(!c->isfloating && isvisible(c)) {
+			if(!c->isfloating && VISIBLE(c)) {
 				XConfigureWindow(dpy, c->win, CWSibling|CWStackMode, &wc);
 				wc.sibling = c->win;
 			}
@@ -1243,7 +1212,7 @@ run(void) {
 	char sbuf[sizeof stext];
 	fd_set rd;
 	int r, xfd;
-	unsigned int len, offset;
+	uint len, offset;
 	XEvent ev;
 
 	/* main event loop, also reads status text from stdin */
@@ -1299,7 +1268,7 @@ run(void) {
 
 void
 scan(void) {
-	unsigned int i, num;
+	uint i, num;
 	Window *wins, d1, d2;
 	XWindowAttributes wa;
 
@@ -1332,9 +1301,23 @@ setclientstate(Client *c, long state) {
 			PropModeReplace, (unsigned char *)data, 2);
 }
 
+/* arg > 1.0 will set mfact absolutly */
+void
+setmfact(const void *arg) {
+	double d = *((double*) arg);
+
+	if(!d || lt->arrange != tile)
+		return;
+	d = d < 1.0 ? d + mfact : d - 1.0;
+	if(d < 0.1 || d > 0.9)
+		return;
+	mfact = d;
+	arrange();
+}
+
 void
 setup(void) {
-	unsigned int i, w;
+	uint i, w;
 	XSetWindowAttributes wa;
 
 	/* init screen */
@@ -1376,14 +1359,9 @@ setup(void) {
 	if(!dc.font.set)
 		XSetFont(dpy, dc.gc, dc.font.xfont->fid);
 
-	/* init tags */
-	tagset[0] = emallocz(TAGSZ);
-	tagset[1] = emallocz(TAGSZ);
-	tagset[0][0] = tagset[1][0] = True;
-
 	/* init bar */
 	for(blw = i = 0; LENGTH(layouts) > 1 && i < LENGTH(layouts); i++) {
-		w = textw(layouts[i].symbol);
+		w = TEXTW(layouts[i].symbol);
 		blw = MAX(blw, w);
 	}
 
@@ -1391,7 +1369,7 @@ setup(void) {
 	wa.background_pixmap = ParentRelative;
 	wa.event_mask = ButtonPressMask|ExposureMask;
 
-	barwin = XCreateWindow(dpy, root, bx, by, bw, bh, 0, DefaultDepth(dpy, screen),
+	barwin = XCreateWindow(dpy, root, wx, by, ww, bh, 0, DefaultDepth(dpy, screen),
 			CopyFromParent, DefaultVisual(dpy, screen),
 			CWOverrideRedirect|CWBackPixmap|CWEventMask, &wa);
 	XDefineCursor(dpy, barwin, cursor[CurNormal]);
@@ -1415,13 +1393,11 @@ setup(void) {
 }
 
 void
-spawn(const char *arg) {
+spawn(const void *arg) {
 	static char *shell = NULL;
 
 	if(!shell && !(shell = getenv("SHELL")))
 		shell = "/bin/sh";
-	if(!arg)
-		return;
 	/* The double-fork construct avoids zombie processes and keeps the code
 	 * clean from stupid signal handlers. */
 	if(fork() == 0) {
@@ -1429,8 +1405,8 @@ spawn(const char *arg) {
 			if(dpy)
 				close(ConnectionNumber(dpy));
 			setsid();
-			execl(shell, shell, "-c", arg, (char *)NULL);
-			fprintf(stderr, "dwm: execl '%s -c %s'", shell, arg);
+			execl(shell, shell, "-c", (char *)arg, (char *)NULL);
+			fprintf(stderr, "dwm: execl '%s -c %s'", shell, (char *)arg);
 			perror(" failed");
 		}
 		exit(0);
@@ -1439,19 +1415,15 @@ spawn(const char *arg) {
 }
 
 void
-tag(const char *arg) {
-	unsigned int i;
-
-	if(!sel)
-		return;
-	for(i = 0; i < LENGTH(tags); i++)
-		sel->tags[i] = (arg == NULL);
-	sel->tags[idxoftag(arg)] = True;
-	arrange();
+tag(const void *arg) {
+	if(sel && *(int *)arg & TAGMASK) {
+		sel->tags = *(int *)arg & TAGMASK;
+		arrange();
+	}
 }
 
-unsigned int
-textnw(const char *text, unsigned int len) {
+uint
+textnw(const char *text, uint len) {
 	XRectangle r;
 
 	if(dc.font.set) {
@@ -1461,13 +1433,42 @@ textnw(const char *text, unsigned int len) {
 	return XTextWidth(dc.font.xfont, text, len);
 }
 
-unsigned int
-textw(const char *text) {
-	return textnw(text, strlen(text)) + dc.font.height;
+void
+tile(void) {
+	int x, y, h, w, mw;
+	uint i, n;
+	Client *c;
+
+	for(n = 0, c = nexttiled(clients); c; c = nexttiled(c->next), n++);
+	if(n == 0)
+		return;
+
+	/* master */
+	c = nexttiled(clients);
+	mw = mfact * ww;
+	resize(c, wx, wy, ((n == 1) ? ww : mw) - 2 * c->bw, wh - 2 * c->bw, resizehints);
+
+	if(--n == 0)
+		return;
+
+	/* tile stack */
+	x = (wx + mw > c->x + c->w) ? c->x + c->w + 2 * c->bw : ww - mw;
+	y = wy;
+	w = (wx + mw > c->x + c->w) ? wx + ww - x : ww - mw;
+	h = wh / n;
+	if(h < bh)
+		h = wh;
+
+	for(i = 0, c = nexttiled(c->next); c; c = nexttiled(c->next), i++) {
+		resize(c, x, y, w - 2 * c->bw, /* remainder */ ((i + 1 == n)
+		       ? (wy + wh) - y : h) - 2 * c->bw, resizehints);
+		if(h != wh)
+			y = c->y + c->h + 2 * c->bw;
+	}
 }
 
 void
-togglebar(const char *arg) {
+togglebar(const void *arg) {
 	showbar = !showbar;
 	updategeom();
 	updatebar();
@@ -1475,7 +1476,7 @@ togglebar(const char *arg) {
 }
 
 void
-togglefloating(const char *arg) {
+togglefloating(const void *arg) {
 	if(!sel)
 		return;
 	sel->isfloating = !sel->isfloating;
@@ -1485,8 +1486,8 @@ togglefloating(const char *arg) {
 }
 
 void
-togglelayout(const char *arg) {
-	unsigned int i;
+togglelayout(const void *arg) {
+	uint i;
 
 	if(!arg) {
 		if(++lt == &layouts[LENGTH(layouts)])
@@ -1494,7 +1495,7 @@ togglelayout(const char *arg) {
 	}
 	else {
 		for(i = 0; i < LENGTH(layouts); i++)
-			if(!strcmp(arg, layouts[i].symbol))
+			if(!strcmp((char *)arg, layouts[i].symbol))
 				break;
 		if(i == LENGTH(layouts))
 			return;
@@ -1507,37 +1508,25 @@ togglelayout(const char *arg) {
 }
 
 void
-toggletag(const char *arg) {
-	unsigned int i, j;
-
-	if(!sel)
-		return;
-	i = idxoftag(arg);
-	sel->tags[i] = !sel->tags[i];
-	for(j = 0; j < LENGTH(tags) && !sel->tags[j]; j++);
-	if(j == LENGTH(tags))
-		sel->tags[i] = True; /* at least one tag must be enabled */
+togglemax(const void *arg) {
+	ismax = !ismax;
 	arrange();
 }
 
 void
-toggleview(const char *arg) {
-	unsigned int i, j;
-
-	i = idxoftag(arg);
-	tagset[seltags][i] = !tagset[seltags][i];
-	for(j = 0; j < LENGTH(tags) && !tagset[seltags][j]; j++);
-	if(j == LENGTH(tags))
-		tagset[seltags][i] = True; /* at least one tag must be viewed */
-	arrange();
+toggletag(const void *arg) {
+	if(sel && (sel->tags ^ ((*(int *)arg) & TAGMASK))) {
+		sel->tags ^= (*(int *)arg) & TAGMASK;
+		arrange();
+	}
 }
 
 void
-unban(Client *c) {
-	if(!c->isbanned)
-		return;
-	XMoveWindow(dpy, c->win, c->x, c->y);
-	c->isbanned = False;
+toggleview(const void *arg) {
+	if((tagset[seltags] ^ ((*(int *)arg) & TAGMASK))) {
+		tagset[seltags] ^= (*(int *)arg) & TAGMASK;
+		arrange();
+	}
 }
 
 void
@@ -1555,7 +1544,6 @@ unmanage(Client *c) {
 		focus(NULL);
 	XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
 	setclientstate(c, WithdrawnState);
-	free(c->tags);
 	free(c);
 	XSync(dpy, False);
 	XSetErrorHandler(xerror);
@@ -1576,8 +1564,8 @@ void
 updatebar(void) {
 	if(dc.drawable != 0)
 		XFreePixmap(dpy, dc.drawable);
-	dc.drawable = XCreatePixmap(dpy, root, bw, bh, DefaultDepth(dpy, screen));
-	XMoveResizeWindow(dpy, barwin, bx, by, bw, bh);
+	dc.drawable = XCreatePixmap(dpy, root, ww, bh, DefaultDepth(dpy, screen));
+	XMoveResizeWindow(dpy, barwin, wx, by, ww, bh);
 }
 
 void
@@ -1590,7 +1578,7 @@ updategeom(void) {
 	if(XineramaIsActive(dpy)) {
 		info = XineramaQueryScreens(dpy, &i);
 		wx = info[0].x_org;
-		wy = showbar && topbar ? info[0].y_org + info[0].height + bh : info[0].y_org;
+		wy = showbar && topbar ? info[0].y_org + bh : info[0].y_org;
 		ww = info[0].width;
 		wh = showbar ? info[0].height - bh : info[0].height;
 		XFree(info);
@@ -1604,15 +1592,8 @@ updategeom(void) {
 		wh = showbar ? sh - bh : sh;
 	}
 
-	/* bar geometry*/
-	bx = wx;
-	by = showbar ? (topbar ? 0 : wy + wh) : -bh;
-	bw = ww;
-
-	/* update layout geometries */
-	for(i = 0; i < LENGTH(layouts); i++)
-		if(layouts[i].updategeom)
-			layouts[i].updategeom();
+	/* bar position */
+	by = showbar ? (topbar ? wy - bh : wy + wh) : -bh;
 }
 
 void
@@ -1687,15 +1668,16 @@ updatewmhints(Client *c) {
 }
 
 void
-view(const char *arg) {
-	seltags ^= 1; /* toggle sel tagset */
-	memset(tagset[seltags], (NULL == arg), TAGSZ);
-	tagset[seltags][idxoftag(arg)] = True;
-	arrange();
+view(const void *arg) {
+	if(*(int *)arg & TAGMASK) {
+		seltags ^= 1; /* toggle sel tagset */
+		tagset[seltags] = *(int *)arg & TAGMASK;
+		arrange();
+	}
 }
 
 void
-viewprevtag(const char *arg) {
+viewprevtag(const void *arg) {
 	seltags ^= 1; /* toggle sel tagset */
 	arrange();
 }
@@ -1733,6 +1715,21 @@ xerrorstart(Display *dpy, XErrorEvent *ee) {
 	return -1;
 }
 
+void
+zoom(const void *arg) {
+	Client *c = sel;
+
+	if(!lt->arrange || sel->isfloating)
+		return;
+	if(c == nexttiled(clients))
+		if(!c || !(c = nexttiled(c->next)))
+			return;
+	detach(c);
+	attach(c);
+	focus(c);
+	arrange();
+}
+
 int
 main(int argc, char *argv[]) {
 	if(argc == 2 && !strcmp("-v", argv[1]))