dwm/tag.c

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/*
* (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
* See LICENSE file for license details.
*/
#include "dwm.h"
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#include <regex.h>
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/types.h>
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#include <X11/Xutil.h>
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typedef struct {
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const char *clpattern;
const char *tpattern;
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Bool isfloat;
} Rule;
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typedef struct {
regex_t *clregex;
regex_t *tregex;
} RReg;
/* static */
TAGS
RULES
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static RReg *rreg = NULL;
static unsigned int len = 0;
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void (*arrange)(Arg *) = DEFMODE;
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/* extern */
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void
appendtag(Arg *arg)
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{
if(!sel)
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return;
sel->tags[arg->i] = True;
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arrange(NULL);
}
void
dofloat(Arg *arg)
{
Client *c;
for(c = clients; c; c = c->next) {
c->ismax = False;
if(c->tags[tsel]) {
resize(c, True, TopLeft);
}
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else
ban(c);
}
if(sel && !sel->tags[tsel]) {
if((sel = getnext(clients))) {
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higher(sel);
focus(sel);
}
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else
XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
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}
drawall();
}
void
dotile(Arg *arg)
{
int n, i, w, h;
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Client *c;
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w = sw - mw;
for(n = 0, c = clients; c; c = c->next)
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if(c->tags[tsel] && !c->isfloat)
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n++;
if(n > 1)
h = (sh - bh) / (n - 1);
else
h = sh - bh;
for(i = 0, c = clients; c; c = c->next) {
c->ismax = False;
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if(c->tags[tsel]) {
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if(c->isfloat) {
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higher(c);
resize(c, True, TopLeft);
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continue;
}
if(n == 1) {
c->x = sx;
c->y = sy + bh;
c->w = sw - 2;
c->h = sh - 2 - bh;
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}
else if(i == 0) {
c->x = sx;
c->y = sy + bh;
c->w = mw - 2;
c->h = sh - 2 - bh;
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}
else if(h > bh) {
c->x = sx + mw;
c->y = sy + (i - 1) * h + bh;
c->w = w - 2;
c->h = h - 2;
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}
else { /* fallback if h < bh */
c->x = sx + mw;
c->y = sy + bh;
c->w = w - 2;
c->h = sh - 2 - bh;
}
resize(c, False, TopLeft);
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i++;
}
else
ban(c);
}
if(!sel || (sel && !sel->tags[tsel])) {
if((sel = getnext(clients))) {
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higher(sel);
focus(sel);
}
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else
XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
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}
drawall();
}
Client *
getnext(Client *c)
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{
for(; c && !c->tags[tsel]; c = c->next);
return c;
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}
Client *
getprev(Client *c)
{
for(; c && !c->tags[tsel]; c = c->prev);
return c;
}
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void
initrregs()
{
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, 0))
free(reg);
else
rreg[i].clregex = reg;
}
if(rule[i].tpattern) {
reg = emallocz(sizeof(regex_t));
if(regcomp(reg, rule[i].tpattern, 0))
free(reg);
else
rreg[i].tregex = reg;
}
}
}
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void
replacetag(Arg *arg)
{
int i;
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if(!sel)
return;
for(i = 0; i < ntags; i++)
sel->tags[i] = False;
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appendtag(arg);
}
void
settags(Client *c)
{
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char classinst[256];
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unsigned int i, j;
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regmatch_t tmp;
Bool matched = False;
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XClassHint ch;
if(XGetClassHint(dpy, c->win, &ch)) {
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snprintf(classinst, sizeof(classinst), "%s:%s",
ch.res_class ? ch.res_class : "",
ch.res_name ? ch.res_name : "");
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for(i = 0; !matched && i < len; i++)
if(rreg[i].clregex && !regexec(rreg[i].clregex, classinst, 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;
}
}
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}
if(ch.res_class)
XFree(ch.res_class);
if(ch.res_name)
XFree(ch.res_name);
}
if(!matched)
c->tags[tsel] = True;
}
void
togglemode(Arg *arg)
{
arrange = arrange == dofloat ? dotile : dofloat;
arrange(NULL);
}
void
view(Arg *arg)
{
tsel = arg->i;
arrange(NULL);
drawall();
}
void
viewnext(Arg *arg)
{
arg->i = (tsel < ntags-1) ? tsel+1 : 0;
view(arg);
}
void
viewprev(Arg *arg)
{
arg->i = (tsel > 0) ? tsel-1 : ntags-1;
view(arg);
}