dotfiles/view.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 <stdio.h>
/* static */
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static Client *
minclient()
{
Client *c, *min;
for(min = c = clients; c; c = c->next)
if(c->weight < min->weight)
min = c;
return min;
}
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static void
reorder()
{
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Client *c, *newclients, *tail;
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newclients = tail = NULL;
while((c = minclient())) {
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detach(c);
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if(tail) {
c->prev = tail;
tail->next = c;
tail = c;
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}
else
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tail = newclients = c;
}
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clients = newclients;
}
static Client *
nexttiled(Client *c)
{
for(c = getnext(c->next); c && c->isfloat; c = getnext(c->next));
return c;
}
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/* extern */
void (*arrange)(Arg *) = 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(Arg *arg)
{
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Client *c;
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maximized = False;
for(c = clients; c; c = c->next) {
if(isvisible(c)) {
resize(c, True, TopLeft);
}
else
ban(c);
}
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if(!sel || !isvisible(sel))
focus(getnext(clients));
restack();
}
void
dotile(Arg *arg)
{
int h, i, n, w;
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Client *c;
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maximized = False;
w = sw - mw;
for(n = 0, c = clients; c; c = c->next)
if(isvisible(c) && !c->isfloat)
n++;
if(n > 1)
h = (sh - bh) / (n - 1);
else
h = sh - bh;
for(i = 0, c = clients; c; c = c->next) {
if(isvisible(c)) {
if(c->isfloat) {
resize(c, True, TopLeft);
continue;
}
if(n == 1) {
c->x = sx;
c->y = sy + bh;
c->w = sw - 2;
c->h = sh - 2 - bh;
}
else if(i == 0) {
c->x = sx;
c->y = sy + bh;
c->w = mw - 2;
c->h = sh - 2 - bh;
}
else if(h > bh) {
c->x = sx + mw;
c->y = sy + (i - 1) * h + bh;
c->w = w - 2;
if(i + 1 == n)
c->h = sh - c->y - 2;
else
c->h = h - 2;
}
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);
i++;
}
else
ban(c);
}
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if(!sel || !isvisible(sel))
focus(getnext(clients));
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();
}
}
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Bool
isvisible(Client *c)
{
unsigned int i;
for(i = 0; i < ntags; i++)
if(c->tags[i] && seltag[i])
return True;
return False;
}
void
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resizecol(Arg *arg)
{
unsigned int n;
Client *c;
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for(n = 0, c = clients; c; c = c->next)
if(isvisible(c) && !c->isfloat)
n++;
if(!sel || sel->isfloat || n < 2 || (arrange != dotile) || maximized)
return;
if(sel == getnext(clients)) {
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if(mw + arg->i > sw - 100 || mw + arg->i < 100)
return;
mw += arg->i;
}
else {
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if(mw - arg->i > sw - 100 || mw - arg->i < 100)
return;
mw -= arg->i;
}
arrange(NULL);
}
void
restack()
{
static unsigned int nwins = 0;
static Window *wins = NULL;
unsigned int f, fi, m, mi, n;
Client *c;
XEvent ev;
for(f = 0, m = 0, c = clients; c; c = c->next)
if(isvisible(c)) {
if(c->isfloat || arrange == dofloat)
f++;
else
m++;
}
if(!(n = 2 * (f + m))) {
drawstatus();
return;
}
if(nwins < n) {
nwins = n;
wins = erealloc(wins, nwins * sizeof(Window));
}
fi = 0;
mi = 2 * f;
if(sel) {
if(sel->isfloat || arrange == dofloat) {
wins[fi++] = sel->twin;
wins[fi++] = sel->win;
}
else {
wins[mi++] = sel->twin;
wins[mi++] = sel->win;
}
}
for(c = clients; c; c = c->next)
if(isvisible(c) && c != sel) {
if(c->isfloat || arrange == dofloat) {
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wins[fi++] = c->twin;
wins[fi++] = c->win;
}
else {
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wins[mi++] = c->twin;
wins[mi++] = c->win;
}
}
XRestackWindows(dpy, wins, n);
drawall();
XSync(dpy, False);
while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
}
void
togglemode(Arg *arg)
{
arrange = (arrange == dofloat) ? dotile : dofloat;
if(sel)
arrange(NULL);
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 */
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reorder();
arrange(NULL);
}
void
view(Arg *arg)
{
unsigned int i;
for(i = 0; i < ntags; i++)
seltag[i] = False;
seltag[arg->i] = True;
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reorder();
arrange(NULL);
}
void
viewall(Arg *arg)
{
unsigned int i;
for(i = 0; i < ntags; i++)
seltag[i] = True;
reorder();
arrange(NULL);
}
void
zoom(Arg *arg)
{
unsigned int n;
Client *c;
for(n = 0, c = clients; c; c = c->next)
if(isvisible(c) && !c->isfloat)
n++;
if(!sel || sel->isfloat || n < 2 || (arrange != dotile) || maximized)
return;
if((c = sel) == nexttiled(clients))
if(!(c = nexttiled(c)))
return;
detach(c);
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c->next = clients;
clients->prev = c;
clients = c;
focus(c);
arrange(NULL);
}