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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"
#include <regex.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <X11/Xutil.h>
void (*arrange)(void) = DEFMODE;
unsigned int master = MASTER;
unsigned int nmaster = NMASTER;
/* static */
typedef struct {
const char *clpattern;
const char *tpattern;
Bool isfloat;
} Rule;
typedef struct {
regex_t *clregex;
regex_t *tregex;
} RReg;
TAGS
RULES
static RReg *rreg = NULL;
static unsigned int len = 0;
static Client *
nextmanaged(Client *c) {
for(; c && (c->isfloat || !isvisible(c)); c = c->next);
return c;
}
static void
togglemax(Client *c) {
XEvent ev;
if(c->isfixed)
return;
if((c->ismax = !c->ismax)) {
c->rx = c->x;
c->ry = c->y;
c->rw = c->w;
c->rh = c->h;
resize(c, wax, way, waw - 2 * BORDERPX, wah - 2 * BORDERPX, True);
}
else
resize(c, c->rx, c->ry, c->rw, c->rh, True);
while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
}
/* extern */
void
attach(Client *c) {
if(clients)
clients->prev = c;
c->next = clients;
clients = c;
}
void
attachstack(Client *c) {
c->snext = stack;
stack = c;
}
void
compileregexps(void) {
unsigned int i;
regex_t *reg;
if(rreg)
return;
len = sizeof rule / sizeof rule[0];
rreg = emallocz(len * sizeof(RReg));
for(i = 0; i < len; i++) {
if(rule[i].clpattern) {
reg = emallocz(sizeof(regex_t));
if(regcomp(reg, rule[i].clpattern, REG_EXTENDED))
free(reg);
else
rreg[i].clregex = reg;
}
if(rule[i].tpattern) {
reg = emallocz(sizeof(regex_t));
if(regcomp(reg, rule[i].tpattern, REG_EXTENDED))
free(reg);
else
rreg[i].tregex = reg;
}
}
}
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
detachstack(Client *c) {
Client **tc;
for(tc=&stack; *tc && *tc != c; tc=&(*tc)->snext);
*tc = c->snext;
}
void
dofloat(void) {
Client *c;
for(c = clients; c; c = c->next) {
if(isvisible(c)) {
if(c->isbanned)
XMoveWindow(dpy, c->win, c->x, c->y);
c->isbanned = False;
resize(c, c->x, c->y, c->w, c->h, True);
}
else {
c->isbanned = True;
XMoveWindow(dpy, c->win, c->x + 2 * sw, c->y);
}
}
if(!sel || !isvisible(sel)) {
for(c = stack; c && !isvisible(c); c = c->snext);
focus(c);
}
restack();
}
void
dotile(void) {
unsigned int i, n, nx, ny, nw, nh, mw, mh, tw, th;
Client *c;
for(n = 0, c = nextmanaged(clients); c; c = nextmanaged(c->next))
n++;
/* window geoms */
mh = (n > nmaster) ? wah / nmaster : wah / (n > 0 ? n : 1);
mw = (n > nmaster) ? (waw * master) / 1000 : waw;
th = (n > nmaster) ? wah / (n - nmaster) : 0;
tw = waw - mw;
for(i = 0, c = clients; c; c = c->next)
if(isvisible(c)) {
if(c->isbanned)
XMoveWindow(dpy, c->win, c->x, c->y);
c->isbanned = False;
if(c->isfloat)
continue;
c->ismax = False;
nx = wax;
ny = way;
if(i < nmaster) {
ny += i * mh;
nw = mw - 2 * BORDERPX;
nh = mh - 2 * BORDERPX;
}
else { /* tile window */
nx += mw;
nw = tw - 2 * BORDERPX;
if(th > 2 * BORDERPX) {
ny += (i - nmaster) * th;
nh = th - 2 * BORDERPX;
}
else /* fallback if th <= 2 * BORDERPX */
nh = wah - 2 * BORDERPX;
}
resize(c, nx, ny, nw, nh, False);
i++;
}
else {
c->isbanned = True;
XMoveWindow(dpy, c->win, c->x + 2 * sw, c->y);
}
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;
for(c = sel->next; c && !isvisible(c); c = c->next);
if(!c)
for(c = clients; c && !isvisible(c); c = c->next);
if(c) {
focus(c);
restack();
}
}
void
focusprev(Arg *arg) {
Client *c;
if(!sel)
return;
for(c = sel->prev; c && !isvisible(c); c = c->prev);
if(!c) {
for(c = clients; c && c->next; c = c->next);
for(; c && !isvisible(c); c = c->prev);
}
if(c) {
focus(c);
restack();
}
}
Client *
getclient(Window w) {
Client *c;
for(c = clients; c; c = c->next)
if(c->win == w)
return c;
return NULL;
}
void
incnmaster(Arg *arg) {
if((arrange == dofloat) || (nmaster + arg->i < 1)
|| (wah / (nmaster + arg->i) <= 2 * BORDERPX))
return;
nmaster += arg->i;
if(sel)
arrange();
else
drawstatus();
}
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(arrange != dotile)
return;
if(arg->i == 0)
master = MASTER;
else {
if(waw * (master + arg->i) / 1000 >= waw - 2 * BORDERPX
|| waw * (master + arg->i) / 1000 <= 2 * BORDERPX)
return;
master += arg->i;
}
arrange();
}
void
restack(void) {
Client *c;
XEvent ev;
drawstatus();
if(!sel)
return;
if(sel->isfloat || arrange == dofloat)
XRaiseWindow(dpy, sel->win);
if(arrange != dofloat) {
if(!sel->isfloat)
XLowerWindow(dpy, sel->win);
for(c = nextmanaged(clients); c; c = nextmanaged(c->next)) {
if(c == sel)
continue;
XLowerWindow(dpy, c->win);
}
}
XSync(dpy, False);
while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
}
void
settags(Client *c, Client *trans) {
char prop[512];
unsigned int i, j;
regmatch_t tmp;
Bool matched = trans != NULL;
XClassHint ch = { 0 };
if(matched)
for(i = 0; i < ntags; i++)
c->tags[i] = trans->tags[i];
else {
XGetClassHint(dpy, c->win, &ch);
snprintf(prop, sizeof prop, "%s:%s:%s",
ch.res_class ? ch.res_class : "",
ch.res_name ? ch.res_name : "", c->name);
for(i = 0; i < len; i++)
if(rreg[i].clregex && !regexec(rreg[i].clregex, prop, 1, &tmp, 0)) {
c->isfloat = rule[i].isfloat;
for(j = 0; rreg[i].tregex && j < ntags; j++) {
if(!regexec(rreg[i].tregex, tags[j], 1, &tmp, 0)) {
matched = True;
c->tags[j] = True;
}
}
}
if(ch.res_class)
XFree(ch.res_class);
if(ch.res_name)
XFree(ch.res_name);
}
if(!matched)
for(i = 0; i < ntags; i++)
c->tags[i] = seltag[i];
}
void
tag(Arg *arg) {
unsigned int i;
if(!sel)
return;
for(i = 0; i < ntags; i++)
sel->tags[i] = (arg->i == -1) ? True : False;
if(arg->i >= 0 && arg->i < ntags)
sel->tags[arg->i] = True;
arrange();
}
void
togglefloat(Arg *arg) {
if(!sel || arrange == dofloat)
return;
sel->isfloat = !sel->isfloat;
arrange();
}
void
toggletag(Arg *arg) {
unsigned int i;
if(!sel)
return;
sel->tags[arg->i] = !sel->tags[arg->i];
for(i = 0; i < ntags && !sel->tags[i]; i++);
if(i == ntags)
sel->tags[arg->i] = True;
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 = nextmanaged(clients); c; c = nextmanaged(c->next))
n++;
if((c = sel) == nextmanaged(clients))
if(!(c = nextmanaged(c->next)))
return;
detach(c);
attach(c);
focus(c);
arrange();
}