My fork of Suckless's DWM window manager
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/* (C)opyright MMVI-MMVII Anselm R. Garbe <garbeam at gmail dot com>
* See LICENSE file for license details.
*/
#include "dwm.h"
/* static */
static Client *
nexttiled(Client *c) {
for(c = getnext(c); c && c->isfloat; c = getnext(c->next));
return c;
}
static Bool
ismaster(Client *c) {
Client *cl;
unsigned int i;
for(cl = nexttiled(clients), i = 0; cl && cl != c; cl = nexttiled(cl->next), i++);
return i < nmaster;
}
static void
pop(Client *c) {
detach(c);
if(clients)
clients->prev = c;
c->next = clients;
clients = c;
}
static void
swap(Client *c1, Client *c2) {
Client tmp = *c1;
Client *cp = c1->prev;
Client *cn = c1->next;
*c1 = *c2;
c1->prev = cp;
c1->next = cn;
cp = c2->prev;
cn = c2->next;
*c2 = tmp;
c2->prev = cp;
c2->next = cn;
}
static void
togglemax(Client *c) {
XEvent ev;
if(c->isfixed)
return;
if((c->ismax = !c->ismax)) {
c->rx = c->x; c->x = wax;
c->ry = c->y; c->y = way;
c->rw = c->w; c->w = waw - 2 * BORDERPX;
c->rh = c->h; c->h = wah - 2 * BORDERPX;
}
else {
c->x = c->rx;
c->y = c->ry;
c->w = c->rw;
c->h = c->rh;
}
resize(c, True, TopLeft);
while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
}
static Client *
topofstack() {
Client *c;
unsigned int i;
for(c = nexttiled(clients), i = 0; c && i < nmaster; c = nexttiled(c->next), i++);
return (i < nmaster) ? NULL : c;
}
/* extern */
void (*arrange)(void) = DEFMODE;
void
detach(Client *c) {
if(c->prev)
c->prev->next = c->next;
if(c->next)
c->next->prev = c->prev;
if(c == clients)
clients = c->next;
c->next = c->prev = NULL;
}
void
dofloat(void) {
Client *c;
for(c = clients; c; c = c->next) {
if(isvisible(c)) {
resize(c, True, TopLeft);
}
else
ban(c);
}
if(!sel || !isvisible(sel)) {
for(c = stack; c && !isvisible(c); c = c->snext);
focus(c);
}
restack();
}
void
dotile(void) {
unsigned int i, n, mw, mh, tw, th;
Client *c;
for(n = 0, c = nexttiled(clients); c; c = nexttiled(c->next))
n++;
/* window geoms */
mw = (n > nmaster) ? (waw * master) / 1000 : waw;
mh = (n > nmaster) ? wah / nmaster : wah / (n > 0 ? n : 1);
tw = waw - mw;
th = (n > nmaster) ? wah / (n - nmaster) : 0;
for(i = 0, c = clients; c; c = c->next)
if(isvisible(c)) {
if(c->isfloat) {
resize(c, True, TopLeft);
continue;
}
c->ismax = False;
c->x = wax;
c->y = way;
if(i < nmaster) {
c->y += i * mh;
c->w = mw - 2 * BORDERPX;
c->h = mh - 2 * BORDERPX;
}
else { /* tile window */
c->x += mw;
c->w = tw - 2 * BORDERPX;
if(th > bh) {
c->y += (i - nmaster) * th;
c->h = th - 2 * BORDERPX;
}
else /* fallback if th < bh */
c->h = wah - 2 * BORDERPX;
}
resize(c, False, TopLeft);
i++;
}
else
ban(c);
if(!sel || !isvisible(sel)) {
for(c = stack; c && !isvisible(c); c = c->snext);
focus(c);
}
restack();
}
void
focusnext(Arg *arg) {
Client *c;
if(!sel)
return;
if(!(c = getnext(sel->next)))
c = getnext(clients);
if(c) {
focus(c);
restack();
}
}
void
focusprev(Arg *arg) {
Client *c;
if(!sel)
return;
if(!(c = getprev(sel->prev))) {
for(c = clients; c && c->next; c = c->next);
c = getprev(c);
}
if(c) {
focus(c);
restack();
}
}
void
incnmaster(Arg *arg) {
if(nmaster + arg->i < 1)
return;
nmaster += arg->i;
arrange();
}
Bool
isvisible(Client *c) {
unsigned int i;
for(i = 0; i < ntags; i++)
if(c->tags[i] && seltag[i])
return True;
return False;
}
void
resizemaster(Arg *arg) {
if(arg->i == 0)
master = MASTER;
else {
if(master + arg->i > 950 || master + arg->i < 50)
return;
master += arg->i;
}
arrange();
}
void
restack(void) {
Client *c;
XEvent ev;
if(!sel) {
drawstatus();
return;
}
if(sel->isfloat || arrange == dofloat) {
XRaiseWindow(dpy, sel->win);
XRaiseWindow(dpy, sel->twin);
}
if(arrange != dofloat) {
if(!sel->isfloat) {
XLowerWindow(dpy, sel->twin);
XLowerWindow(dpy, sel->win);
}
for(c = nexttiled(clients); c; c = nexttiled(c->next)) {
if(c == sel)
continue;
XLowerWindow(dpy, c->twin);
XLowerWindow(dpy, c->win);
}
}
drawall();
XSync(dpy, False);
while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
}
void
togglefloat(Arg *arg) {
if (!sel || arrange == dofloat)
return;
sel->isfloat = !sel->isfloat;
arrange();
}
void
togglemode(Arg *arg) {
arrange = (arrange == dofloat) ? dotile : dofloat;
if(sel)
arrange();
else
drawstatus();
}
void
toggleview(Arg *arg) {
unsigned int i;
seltag[arg->i] = !seltag[arg->i];
for(i = 0; i < ntags && !seltag[i]; i++);
if(i == ntags)
seltag[arg->i] = True; /* cannot toggle last view */
arrange();
}
void
view(Arg *arg) {
unsigned int i;
for(i = 0; i < ntags; i++)
seltag[i] = (arg->i == -1) ? True : False;
if(arg->i >= 0 && arg->i < ntags)
seltag[arg->i] = True;
arrange();
}
void
zoom(Arg *arg) {
unsigned int n;
Client *c;
if(!sel)
return;
if(sel->isfloat || (arrange == dofloat)) {
togglemax(sel);
return;
}
for(n = 0, c = nexttiled(clients); c; c = nexttiled(c->next))
n++;
if(n <= nmaster || (arrange == dofloat))
return;
if(ismaster((c = sel))) {
if(!(c = topofstack()))
return;
swap(c, sel);
c = sel;
}
else
pop(c);
focus(c);
arrange();
}