arg@327: /*
arg@327:  * (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
arg@327:  * See LICENSE file for license details.
arg@327:  */
arg@327: #include "dwm.h"
arg@382: #include <stdio.h>
arg@327: 
arg@380: /* static */
arg@380: 
arg@382: static Client *
arg@382: minclient()
arg@382: {
arg@382: 	Client *c, *min;
arg@382: 
arg@382: 	for(min = c = clients; c; c = c->next)
arg@382: 		if(c->weight < min->weight)
arg@382: 			min = c;
arg@382: 	return min;
arg@382: }
arg@382: 
arg@382: 
arg@381: static void
arg@381: reorder()
arg@380: {
arg@382: 	Client *c, *newclients, *tail;
arg@380: 
arg@382: 	newclients = tail = NULL;
arg@382: 	while((c = minclient())) {
arg@381: 		detach(c);
arg@382: 		if(tail) {
arg@382: 			c->prev = tail;
arg@382: 			tail->next = c;
arg@382: 			tail = c;
arg@381: 		}
arg@381: 		else
arg@382: 			tail = newclients = c;
arg@380: 	}
arg@382: 	clients = newclients;
arg@380: }
arg@380: 
arg@327: /* extern */
arg@327: 
arg@327: void (*arrange)(Arg *) = DEFMODE;
arg@327: 
arg@327: void
arg@378: detach(Client *c)
arg@378: {
arg@378: 	if(c->prev)
arg@378: 		c->prev->next = c->next;
arg@378: 	if(c->next)
arg@378: 		c->next->prev = c->prev;
arg@378: 	if(c == clients)
arg@378: 		clients = c->next;
arg@378: 	c->next = c->prev = NULL;
arg@378: }
arg@378: 
arg@378: void
arg@327: dofloat(Arg *arg)
arg@327: {
arg@327: 	Client *c;
arg@327: 
arg@327: 	for(c = clients; c; c = c->next) {
arg@327: 		c->ismax = False;
arg@327: 		if(isvisible(c)) {
arg@327: 			resize(c, True, TopLeft);
arg@327: 		}
arg@327: 		else
arg@327: 			ban(c);
arg@327: 	}
arg@382: 	if((sel = getnext(clients)))
arg@327: 		focus(sel);
arg@327: 	else
arg@327: 		XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
arg@327: 	restack();
arg@327: }
arg@327: 
arg@327: void
arg@327: dotile(Arg *arg)
arg@327: {
arg@327: 	int h, i, n, w;
arg@327: 	Client *c;
arg@327: 
arg@327: 	w = sw - mw;
arg@327: 	for(n = 0, c = clients; c; c = c->next)
arg@327: 		if(isvisible(c) && !c->isfloat)
arg@327: 			n++;
arg@327: 
arg@327: 	if(n > 1)
arg@327: 		h = (sh - bh) / (n - 1);
arg@327: 	else
arg@327: 		h = sh - bh;
arg@327: 
arg@327: 	for(i = 0, c = clients; c; c = c->next) {
arg@327: 		c->ismax = False;
arg@327: 		if(isvisible(c)) {
arg@327: 			if(c->isfloat) {
arg@327: 				resize(c, True, TopLeft);
arg@327: 				continue;
arg@327: 			}
arg@327: 			if(n == 1) {
arg@327: 				c->x = sx;
arg@327: 				c->y = sy + bh;
arg@327: 				c->w = sw - 2;
arg@327: 				c->h = sh - 2 - bh;
arg@327: 			}
arg@327: 			else if(i == 0) {
arg@327: 				c->x = sx;
arg@327: 				c->y = sy + bh;
arg@327: 				c->w = mw - 2;
arg@327: 				c->h = sh - 2 - bh;
arg@327: 			}
arg@327: 			else if(h > bh) {
arg@327: 				c->x = sx + mw;
arg@327: 				c->y = sy + (i - 1) * h + bh;
arg@327: 				c->w = w - 2;
arg@327: 				if(i + 1 == n)
arg@327: 					c->h = sh - c->y - 2;
arg@327: 				else
arg@327: 					c->h = h - 2;
arg@327: 			}
arg@327: 			else { /* fallback if h < bh */
arg@327: 				c->x = sx + mw;
arg@327: 				c->y = sy + bh;
arg@327: 				c->w = w - 2;
arg@327: 				c->h = sh - 2 - bh;
arg@327: 			}
arg@327: 			resize(c, False, TopLeft);
arg@327: 			i++;
arg@327: 		}
arg@327: 		else
arg@327: 			ban(c);
arg@327: 	}
arg@382: 	if((sel = getnext(clients)))
arg@327: 		focus(sel);
arg@327: 	else
arg@327: 		XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
arg@327: 	restack();
arg@327: }
arg@327: 
arg@327: void
arg@327: focusnext(Arg *arg)
arg@327: {
arg@327: 	Client *c;
arg@327:    
arg@327: 	if(!sel)
arg@327: 		return;
arg@327: 
arg@327: 	if(!(c = getnext(sel->next)))
arg@327: 		c = getnext(clients);
arg@327: 	if(c) {
arg@327: 		focus(c);
arg@327: 		restack();
arg@327: 	}
arg@327: }
arg@327: 
arg@327: void
arg@327: focusprev(Arg *arg)
arg@327: {
arg@327: 	Client *c;
arg@327: 
arg@327: 	if(!sel)
arg@327: 		return;
arg@327: 
arg@327: 	if(!(c = getprev(sel->prev))) {
arg@327: 		for(c = clients; c && c->next; c = c->next);
arg@327: 		c = getprev(c);
arg@327: 	}
arg@327: 	if(c) {
arg@327: 		focus(c);
arg@327: 		restack();
arg@327: 	}
arg@327: }
arg@327: 
arg@327: Bool
arg@327: isvisible(Client *c)
arg@327: {
arg@327: 	unsigned int i;
arg@327: 
arg@327: 	for(i = 0; i < ntags; i++)
arg@327: 		if(c->tags[i] && seltag[i])
arg@327: 			return True;
arg@327: 	return False;
arg@327: }
arg@327: 
arg@327: void
arg@327: restack()
arg@327: {
arg@327: 	static unsigned int nwins = 0;
arg@327: 	static Window *wins = NULL;
arg@327: 	unsigned int f, fi, m, mi, n;
arg@327: 	Client *c;
arg@327: 	XEvent ev;
arg@327: 
arg@327: 	for(f = 0, m = 0, c = clients; c; c = c->next)
arg@327: 		if(isvisible(c)) {
arg@327: 			if(c->isfloat || arrange == dofloat)
arg@327: 				f++;
arg@327: 			else
arg@327: 				m++;
arg@327: 		}
arg@327: 	if(!(n = 2 * (f + m))) {
arg@327: 		drawstatus();
arg@327: 		return;
arg@327: 	}
arg@327: 	if(nwins < n) {
arg@327: 		nwins = n;
arg@327: 		wins = erealloc(wins, nwins * sizeof(Window));
arg@327: 	}
arg@327: 
arg@327: 	fi = 0;
arg@327: 	mi = 2 * f;
arg@327: 	if(sel->isfloat || arrange == dofloat) {
arg@342: 		wins[fi++] = sel->twin;
arg@327: 		wins[fi++] = sel->win;
arg@327: 	}
arg@327: 	else {
arg@342: 		wins[mi++] = sel->twin;
arg@327: 		wins[mi++] = sel->win;
arg@327: 	}
arg@327: 	for(c = clients; c; c = c->next)
arg@327: 		if(isvisible(c) && c != sel) {
arg@327: 			if(c->isfloat || arrange == dofloat) {
arg@342: 				wins[fi++] = c->twin;
arg@327: 				wins[fi++] = c->win;
arg@327: 			}
arg@327: 			else {
arg@342: 				wins[mi++] = c->twin;
arg@327: 				wins[mi++] = c->win;
arg@327: 			}
arg@327: 		}
arg@327: 	XRestackWindows(dpy, wins, n);
arg@327: 	drawall();
arg@327: 	XSync(dpy, False);
arg@327: 	while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
arg@327: }
arg@327: 
arg@327: void
arg@327: togglemode(Arg *arg)
arg@327: {
arg@333: 	arrange = (arrange == dofloat) ? dotile : dofloat;
arg@327: 	if(sel)
arg@327: 		arrange(NULL);
arg@327: 	else
arg@327: 		drawstatus();
arg@327: }
arg@327: 
arg@327: void
arg@327: toggleview(Arg *arg)
arg@327: {
arg@327: 	unsigned int i;
arg@327: 
arg@327: 	seltag[arg->i] = !seltag[arg->i];
arg@327: 	for(i = 0; i < ntags && !seltag[i]; i++);
arg@327: 	if(i == ntags)
arg@327: 		seltag[arg->i] = True; /* cannot toggle last view */
arg@381: 	reorder();
arg@327: 	arrange(NULL);
arg@327: }
arg@327: 
arg@327: void
arg@327: view(Arg *arg)
arg@327: {
arg@327: 	unsigned int i;
arg@327: 
arg@327: 	for(i = 0; i < ntags; i++)
arg@327: 		seltag[i] = False;
arg@327: 	seltag[arg->i] = True;
arg@381: 	reorder();
arg@327: 	arrange(NULL);
arg@327: }
arg@327: 
arg@327: void
arg@327: zoom(Arg *arg)
arg@327: {
arg@378: 	Client *c = sel;
arg@327: 
arg@378: 	if(!c || (arrange != dotile) || c->isfloat || c->ismax)
arg@327: 		return;
arg@327: 
arg@378: 	if(c == getnext(clients))
arg@378: 		if(!(c = getnext(c->next)))
arg@327: 			return;
arg@378: 	detach(c);
arg@381: 	c->next = clients;
arg@381: 	clients->prev = c;
arg@381: 	clients = c;
arg@378: 	focus(c);
arg@327: 	arrange(NULL);
arg@327: }