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micromizing dwm step 1

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pull/1/head
Anselm R. Garbe 17 years ago
parent 2091200c95
commit 0235a84ef2
13 changed files with 1861 additions and 1971 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
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  1. 6
      Makefile
  2. 263
      bar.c
  3. 386
      client.c
  4. 26
      config.h
  5. 3
      config.mk
  6. 1847
      dwm.c
  7. 147
      dwm.h
  8. 375
      event.c
  9. 296
      main.c
  10. 340
      screen.c
  11. 85
      tile.c
  12. 6
      tile.h
  13. 52
      util.c

6
Makefile
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@ -3,7 +3,7 @@
include config.mk
SRC += bar.c client.c event.c main.c screen.c util.c
SRC = dwm.c
OBJ = ${SRC:.c=.o}
all: options dwm
@ -18,7 +18,7 @@ options:
@echo CC $<
@${CC} -c ${CFLAGS} $<
${OBJ}: dwm.h config.h config.mk
${OBJ}: config.h config.mk
dwm: ${OBJ}
@echo CC -o $@
@ -32,7 +32,7 @@ dist: clean
@echo creating dist tarball
@mkdir -p dwm-${VERSION}
@cp -R LICENSE Makefile README config.h config.mk \
dwm.1 dwm.h tile.h ${SRC} dwm-${VERSION}
dwm.1 ${SRC} dwm-${VERSION}
@tar -cf dwm-${VERSION}.tar dwm-${VERSION}
@gzip dwm-${VERSION}.tar
@rm -rf dwm-${VERSION}

263
bar.c
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@ -1,263 +0,0 @@
/* See LICENSE file for copyright and license details. */
#include "dwm.h"
#include <string.h>
#include <stdio.h>
/* static */
static void
drawsquare(Bool filled, Bool empty, unsigned long col[ColLast]) {
int x;
XGCValues gcv;
XRectangle r = { dc.x, dc.y, dc.w, dc.h };
gcv.foreground = col[ColFG];
XChangeGC(dpy, dc.gc, GCForeground, &gcv);
x = (dc.font.ascent + dc.font.descent + 2) / 4;
r.x = dc.x + 1;
r.y = dc.y + 1;
if(filled) {
r.width = r.height = x + 1;
XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
}
else if(empty) {
r.width = r.height = x;
XDrawRectangles(dpy, dc.drawable, dc.gc, &r, 1);
}
}
static unsigned long
initcolor(const char *colstr) {
Colormap cmap = DefaultColormap(dpy, screen);
XColor color;
if(!XAllocNamedColor(dpy, cmap, colstr, &color, &color))
eprint("error, cannot allocate color '%s'\n", colstr);
return color.pixel;
}
static void
initfont(const char *fontstr) {
char *def, **missing;
int i, n;
missing = NULL;
if(dc.font.set)
XFreeFontSet(dpy, dc.font.set);
dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def);
if(missing) {
while(n--)
fprintf(stderr, "dwm: missing fontset: %s\n", missing[n]);
XFreeStringList(missing);
}
if(dc.font.set) {
XFontSetExtents *font_extents;
XFontStruct **xfonts;
char **font_names;
dc.font.ascent = dc.font.descent = 0;
font_extents = XExtentsOfFontSet(dc.font.set);
n = XFontsOfFontSet(dc.font.set, &xfonts, &font_names);
for(i = 0, dc.font.ascent = 0, dc.font.descent = 0; i < n; i++) {
if(dc.font.ascent < (*xfonts)->ascent)
dc.font.ascent = (*xfonts)->ascent;
if(dc.font.descent < (*xfonts)->descent)
dc.font.descent = (*xfonts)->descent;
xfonts++;
}
}
else {
if(dc.font.xfont)
XFreeFont(dpy, dc.font.xfont);
dc.font.xfont = NULL;
if(!(dc.font.xfont = XLoadQueryFont(dpy, fontstr))
|| !(dc.font.xfont = XLoadQueryFont(dpy, "fixed")))
eprint("error, cannot load font: '%s'\n", fontstr);
dc.font.ascent = dc.font.xfont->ascent;
dc.font.descent = dc.font.xfont->descent;
}
dc.font.height = dc.font.ascent + dc.font.descent;
}
static Bool
isoccupied(unsigned int t) {
Client *c;
for(c = clients; c; c = c->next)
if(c->tags[t])
return True;
return False;
}
static unsigned int
textnw(const char *text, unsigned int len) {
XRectangle r;
if(dc.font.set) {
XmbTextExtents(dc.font.set, text, len, NULL, &r);
return r.width;
}
return XTextWidth(dc.font.xfont, text, len);
}
static void
drawtext(const char *text, unsigned long col[ColLast]) {
int x, y, w, h;
static char buf[256];
unsigned int len, olen;
XRectangle r = { dc.x, dc.y, dc.w, dc.h };
XSetForeground(dpy, dc.gc, col[ColBG]);
XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
if(!text)
return;
w = 0;
olen = len = strlen(text);
if(len >= sizeof buf)
len = sizeof buf - 1;
memcpy(buf, text, len);
buf[len] = 0;
h = dc.font.ascent + dc.font.descent;
y = dc.y + (dc.h / 2) - (h / 2) + dc.font.ascent;
x = dc.x + (h / 2);
/* shorten text if necessary */
while(len && (w = textnw(buf, len)) > dc.w - h)
buf[--len] = 0;
if(len < olen) {
if(len > 1)
buf[len - 1] = '.';
if(len > 2)
buf[len - 2] = '.';
if(len > 3)
buf[len - 3] = '.';
}
if(w > dc.w)
return; /* too long */
XSetForeground(dpy, dc.gc, col[ColFG]);
if(dc.font.set)
XmbDrawString(dpy, dc.drawable, dc.font.set, dc.gc, x, y, buf, len);
else
XDrawString(dpy, dc.drawable, dc.gc, x, y, buf, len);
}
/* extern */
unsigned int bh;
unsigned int bpos = BARPOS;
DC dc = {0};
Window barwin;
void
drawbar(void) {
int i, x;
dc.x = dc.y = 0;
for(i = 0; i < ntags; i++) {
dc.w = textw(tags[i]);
if(seltags[i]) {
drawtext(tags[i], dc.sel);
drawsquare(sel && sel->tags[i], isoccupied(i), dc.sel);
}
else {
drawtext(tags[i], dc.norm);
drawsquare(sel && sel->tags[i], isoccupied(i), dc.norm);
}
dc.x += dc.w;
}
dc.w = blw;
drawtext(getsymbol(), dc.norm);
x = dc.x + dc.w;
dc.w = textw(stext);
dc.x = sw - dc.w;
if(dc.x < x) {
dc.x = x;
dc.w = sw - x;
}
drawtext(stext, dc.norm);
if((dc.w = dc.x - x) > bh) {
dc.x = x;
if(sel) {
drawtext(sel->name, dc.sel);
drawsquare(sel->ismax, sel->isfloating, dc.sel);
}
else
drawtext(NULL, dc.norm);
}
XCopyArea(dpy, dc.drawable, barwin, dc.gc, 0, 0, sw, bh, 0, 0);
XSync(dpy, False);
}
void
initstyle(void) {
dc.norm[ColBorder] = initcolor(NORMBORDERCOLOR);
dc.norm[ColBG] = initcolor(NORMBGCOLOR);
dc.norm[ColFG] = initcolor(NORMFGCOLOR);
dc.sel[ColBorder] = initcolor(SELBORDERCOLOR);
dc.sel[ColBG] = initcolor(SELBGCOLOR);
dc.sel[ColFG] = initcolor(SELFGCOLOR);
initfont(FONT);
dc.h = bh = dc.font.height + 2;
}
void
initbar(void) {
XSetWindowAttributes wa;
wa.override_redirect = 1;
wa.background_pixmap = ParentRelative;
wa.event_mask = ButtonPressMask | ExposureMask;
barwin = XCreateWindow(dpy, root, sx, sy, sw, bh, 0,
DefaultDepth(dpy, screen), CopyFromParent, DefaultVisual(dpy, screen),
CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
XDefineCursor(dpy, barwin, cursor[CurNormal]);
updatebarpos();
XMapRaised(dpy, barwin);
strcpy(stext, "dwm-"VERSION);
dc.drawable = XCreatePixmap(dpy, root, sw, bh, DefaultDepth(dpy, screen));
dc.gc = XCreateGC(dpy, root, 0, 0);
XSetLineAttributes(dpy, dc.gc, 1, LineSolid, CapButt, JoinMiter);
if(!dc.font.set)
XSetFont(dpy, dc.gc, dc.font.xfont->fid);
}
unsigned int
textw(const char *text) {
return textnw(text, strlen(text)) + dc.font.height;
}
void
togglebar(const char *arg) {
if(bpos == BarOff)
bpos = (BARPOS == BarOff) ? BarTop : BARPOS;
else
bpos = BarOff;
updatebarpos();
arrange();
}
void
updatebarpos(void) {
XEvent ev;
wax = sx;
way = sy;
wah = sh;
waw = sw;
switch(bpos) {
default:
wah -= bh;
way += bh;
XMoveWindow(dpy, barwin, sx, sy);
break;
case BarBot:
wah -= bh;
XMoveWindow(dpy, barwin, sx, sy + wah);
break;
case BarOff:
XMoveWindow(dpy, barwin, sx, sy - bh);
break;
}
XSync(dpy, False);
while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
}

386
client.c
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@ -1,386 +0,0 @@
/* See LICENSE file for copyright and license details. */
#include "dwm.h"
#include <stdlib.h>
#include <X11/Xutil.h>
/* static */
static void
attachstack(Client *c) {
c->snext = stack;
stack = c;
}
static void
detachstack(Client *c) {
Client **tc;
for(tc=&stack; *tc && *tc != c; tc=&(*tc)->snext);
*tc = c->snext;
}
static void
grabbuttons(Client *c, Bool focused) {
XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
if(focused) {
XGrabButton(dpy, Button1, MODKEY, c->win, False, BUTTONMASK,
GrabModeAsync, GrabModeSync, None, None);
XGrabButton(dpy, Button1, MODKEY | LockMask, c->win, False, BUTTONMASK,
GrabModeAsync, GrabModeSync, None, None);
XGrabButton(dpy, Button1, MODKEY | numlockmask, c->win, False, BUTTONMASK,
GrabModeAsync, GrabModeSync, None, None);
XGrabButton(dpy, Button1, MODKEY | numlockmask | LockMask, c->win, False, BUTTONMASK,
GrabModeAsync, GrabModeSync, None, None);
XGrabButton(dpy, Button2, MODKEY, c->win, False, BUTTONMASK,
GrabModeAsync, GrabModeSync, None, None);
XGrabButton(dpy, Button2, MODKEY | LockMask, c->win, False, BUTTONMASK,
GrabModeAsync, GrabModeSync, None, None);
XGrabButton(dpy, Button2, MODKEY | numlockmask, c->win, False, BUTTONMASK,
GrabModeAsync, GrabModeSync, None, None);
XGrabButton(dpy, Button2, MODKEY | numlockmask | LockMask, c->win, False, BUTTONMASK,
GrabModeAsync, GrabModeSync, None, None);
XGrabButton(dpy, Button3, MODKEY, c->win, False, BUTTONMASK,
GrabModeAsync, GrabModeSync, None, None);
XGrabButton(dpy, Button3, MODKEY | LockMask, c->win, False, BUTTONMASK,
GrabModeAsync, GrabModeSync, None, None);
XGrabButton(dpy, Button3, MODKEY | numlockmask, c->win, False, BUTTONMASK,
GrabModeAsync, GrabModeSync, None, None);
XGrabButton(dpy, Button3, MODKEY | numlockmask | LockMask, c->win, False, BUTTONMASK,
GrabModeAsync, GrabModeSync, None, None);
}
else
XGrabButton(dpy, AnyButton, AnyModifier, c->win, False, BUTTONMASK,
GrabModeAsync, GrabModeSync, None, None);
}
static Bool
isprotodel(Client *c) {
int i, n;
Atom *protocols;
Bool ret = False;
if(XGetWMProtocols(dpy, c->win, &protocols, &n)) {
for(i = 0; !ret && i < n; i++)
if(protocols[i] == wmatom[WMDelete])
ret = True;
XFree(protocols);
}
return ret;
}
static void
setclientstate(Client *c, long state) {
long data[] = {state, None};
XChangeProperty(dpy, c->win, wmatom[WMState], wmatom[WMState], 32,
PropModeReplace, (unsigned char *)data, 2);
}
static int
xerrordummy(Display *dsply, XErrorEvent *ee) {
return 0;
}
/* extern */
void
attach(Client *c) {
if(clients)
clients->prev = c;
c->next = clients;
clients = c;
}
void
ban(Client *c) {
if(c->isbanned)
return;
XMoveWindow(dpy, c->win, c->x + 2 * sw, c->y);
c->isbanned = True;
}
void
configure(Client *c) {
XConfigureEvent ce;
ce.type = ConfigureNotify;
ce.display = dpy;
ce.event = c->win;
ce.window = c->win;
ce.x = c->x;
ce.y = c->y;
ce.width = c->w;
ce.height = c->h;
ce.border_width = c->border;
ce.above = None;
ce.override_redirect = False;
XSendEvent(dpy, c->win, False, StructureNotifyMask, (XEvent *)&ce);
}
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
focus(Client *c) {
if((!c && selscreen) || (c && !isvisible(c)))
for(c = stack; c && !isvisible(c); c = c->snext);
if(sel && sel != c) {
grabbuttons(sel, False);
XSetWindowBorder(dpy, sel->win, dc.norm[ColBorder]);
}
if(c) {
detachstack(c);
attachstack(c);
grabbuttons(c, True);
}
sel = c;
drawbar();
if(!selscreen)
return;
if(c) {
XSetWindowBorder(dpy, c->win, dc.sel[ColBorder]);
XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime);
}
else
XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
}
void
killclient(const char *arg) {
XEvent ev;
if(!sel)
return;
if(isprotodel(sel)) {
ev.type = ClientMessage;
ev.xclient.window = sel->win;
ev.xclient.message_type = wmatom[WMProtocols];
ev.xclient.format = 32;
ev.xclient.data.l[0] = wmatom[WMDelete];
ev.xclient.data.l[1] = CurrentTime;
XSendEvent(dpy, sel->win, False, NoEventMask, &ev);
}
else
XKillClient(dpy, sel->win);
}
void
manage(Window w, XWindowAttributes *wa) {
unsigned int i;
Client *c, *t = NULL;
Window trans;
Status rettrans;
XWindowChanges wc;
c = emallocz(sizeof(Client));
c->tags = emallocz(ntags * sizeof(Bool));
c->win = w;
c->x = wa->x;
c->y = wa->y;
c->w = wa->width;
c->h = wa->height;
c->oldborder = wa->border_width;
if(c->w == sw && c->h == sh) {
c->x = sx;
c->y = sy;
c->border = wa->border_width;
}
else {
if(c->x + c->w + 2 * c->border > wax + waw)
c->x = wax + waw - c->w - 2 * c->border;
if(c->y + c->h + 2 * c->border > way + wah)
c->y = way + wah - c->h - 2 * c->border;
if(c->x < wax)
c->x = wax;
if(c->y < way)
c->y = way;
c->border = BORDERPX;
}
wc.border_width = c->border;
XConfigureWindow(dpy, w, CWBorderWidth, &wc);
XSetWindowBorder(dpy, w, dc.norm[ColBorder]);
configure(c); /* propagates border_width, if size doesn't change */
updatesizehints(c);
XSelectInput(dpy, w,
StructureNotifyMask | PropertyChangeMask | EnterWindowMask);
grabbuttons(c, False);
updatetitle(c);
if((rettrans = XGetTransientForHint(dpy, w, &trans) == Success))
for(t = clients; t && t->win != trans; t = t->next);
if(t)
for(i = 0; i < ntags; i++)
c->tags[i] = t->tags[i];
applyrules(c);
if(!c->isfloating)
c->isfloating = (rettrans == Success) || c->isfixed;
attach(c);
attachstack(c);
XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h); /* some windows require this */
ban(c);
XMapWindow(dpy, c->win);
setclientstate(c, NormalState);
arrange();
}
void
resize(Client *c, int x, int y, int w, int h, Bool sizehints) {
double dx, dy, max, min, ratio;
XWindowChanges wc;
if(sizehints) {
if(c->minay > 0 && c->maxay > 0 && (h - c->baseh) > 0 && (w - c->basew) > 0) {
dx = (double)(w - c->basew);
dy = (double)(h - c->baseh);
min = (double)(c->minax) / (double)(c->minay);
max = (double)(c->maxax) / (double)(c->maxay);
ratio = dx / dy;
if(max > 0 && min > 0 && ratio > 0) {
if(ratio < min) {
dy = (dx * min + dy) / (min * min + 1);
dx = dy * min;
w = (int)dx + c->basew;
h = (int)dy + c->baseh;
}
else if(ratio > max) {
dy = (dx * min + dy) / (max * max + 1);
dx = dy * min;
w = (int)dx + c->basew;
h = (int)dy + c->baseh;
}
}
}
if(c->minw && w < c->minw)
w = c->minw;
if(c->minh && h < c->minh)
h = c->minh;
if(c->maxw && w > c->maxw)
w = c->maxw;
if(c->maxh && h > c->maxh)
h = c->maxh;
if(c->incw)
w -= (w - c->basew) % c->incw;
if(c->inch)
h -= (h - c->baseh) % c->inch;
}
if(w <= 0 || h <= 0)
return;
/* offscreen appearance fixes */
if(x > sw)
x = sw - w - 2 * c->border;
if(y > sh)
y = sh - h - 2 * c->border;
if(x + w + 2 * c->border < sx)
x = sx;
if(y + h + 2 * c->border < sy)
y = sy;
if(c->x != x || c->y != y || c->w != w || c->h != h) {
c->x = wc.x = x;
c->y = wc.y = y;
c->w = wc.width = w;
c->h = wc.height = h;
wc.border_width = c->border;
XConfigureWindow(dpy, c->win, CWX | CWY | CWWidth | CWHeight | CWBorderWidth, &wc);
configure(c);
XSync(dpy, False);
}
}
void
unban(Client *c) {
if(!c->isbanned)
return;
XMoveWindow(dpy, c->win, c->x, c->y);
c->isbanned = False;
}
void
unmanage(Client *c) {
XWindowChanges wc;
wc.border_width = c->oldborder;
/* The server grab construct avoids race conditions. */
XGrabServer(dpy);
XSetErrorHandler(xerrordummy);
XConfigureWindow(dpy, c->win, CWBorderWidth, &wc); /* restore border */
detach(c);
detachstack(c);
if(sel == c)
focus(NULL);
XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
setclientstate(c, WithdrawnState);
free(c->tags);
free(c);
XSync(dpy, False);
XSetErrorHandler(xerror);
XUngrabServer(dpy);
arrange();
}
void
updatesizehints(Client *c) {
long msize;
XSizeHints size;
if(!XGetWMNormalHints(dpy, c->win, &size, &msize) || !size.flags)
size.flags = PSize;
c->flags = size.flags;
if(c->flags & PBaseSize) {
c->basew = size.base_width;
c->baseh = size.base_height;
}
else if(c->flags & PMinSize) {
c->basew = size.min_width;
c->baseh = size.min_height;
}
else
c->basew = c->baseh = 0;
if(c->flags & PResizeInc) {
c->incw = size.width_inc;
c->inch = size.height_inc;
}
else
c->incw = c->inch = 0;
if(c->flags & PMaxSize) {
c->maxw = size.max_width;
c->maxh = size.max_height;
}
else
c->maxw = c->maxh = 0;
if(c->flags & PMinSize) {
c->minw = size.min_width;
c->minh = size.min_height;
}
else if(c->flags & PBaseSize) {
c->minw = size.base_width;
c->minh = size.base_height;
}
else
c->minw = c->minh = 0;
if(c->flags & PAspect) {
c->minax = size.min_aspect.x;
c->maxax = size.max_aspect.x;
c->minay = size.min_aspect.y;
c->maxay = size.max_aspect.y;
}
else
c->minax = c->maxax = c->minay = c->maxay = 0;
c->isfixed = (c->maxw && c->minw && c->maxh && c->minh
&& c->maxw == c->minw && c->maxh == c->minh);
}
void
updatetitle(Client *c) {
if(!gettextprop(c->win, netatom[NetWMName], c->name, sizeof c->name))
gettextprop(c->win, wmatom[WMName], c->name, sizeof c->name);
}

26
config.h
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@ -12,24 +12,20 @@
#define SELFGCOLOR "#fff"
/* tagging */
#define TAGS \
const char *tags[] = { "1", "2", "3", "4", "5", "6", "7", "8", "9", NULL };
#define RULES \
static Rule rules[] = { \
/* class:instance:title regex tags regex isfloating */ \
{ "Firefox", "3", False }, \
{ "Gimp", NULL, True }, \
{ "MPlayer", NULL, True }, \
{ "Acroread", NULL, True }, \
static const char *tags[] = { "1", "2", "3", "4", "5", "6", "7", "8", "9", NULL };
static Rule rules[] = {
/* class:instance:title regex tags regex isfloating */
{ "Firefox", "3", False },
{ "Gimp", NULL, True },
{ "MPlayer", NULL, True },
{ "Acroread", NULL, True },
};
/* layout(s) */
#include "tile.h"
#define LAYOUTS \
static Layout layouts[] = { \
/* symbol function */ \
{ "[]=", tile }, /* first entry is default */ \
{ "><>", floating }, \
static Layout layouts[] = {
/* symbol function */
{ "[]=", tile }, /* first entry is default */
{ "><>", floating },
};
#define RESIZEHINTS True /* False - respect size hints in tiled resizals */
#define MWFACT 0.6 /* master width factor [0.1 .. 0.9] */

3
config.mk
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@ -3,9 +3,6 @@ VERSION = 4.5
# Customize below to fit your system
# additional layouts beside floating
SRC = tile.c
# paths
PREFIX = /usr/local
MANPREFIX = ${PREFIX}/share/man

1847
dwm.c
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147
dwm.h
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@ -1,147 +0,0 @@
/* See LICENSE file for copyright and license details.
*
* dynamic window manager is designed like any other X client as well. It is
* driven through handling X events. In contrast to other X clients, a window
* manager selects for SubstructureRedirectMask on the root window, to receive
* events about window (dis-)appearance. Only one X connection at a time is
* allowed to select for this event mask.
*
* Calls to fetch an X event from the event queue are blocking. Due reading
* status text from standard input, a select()-driven main loop has been
* implemented which selects for reads on the X connection and STDIN_FILENO to
* handle all data smoothly. The event handlers of dwm are organized in an
* array which is accessed whenever a new event has been fetched. This allows
* event dispatching in O(1) time.
*
* Each child of the root window is called a client, except windows which have
* set the override_redirect flag. Clients are organized in a global
* doubly-linked client list, the focus history is remembered through a global
* stack list. Each client contains an array of Bools of the same size as the
* global tags array to indicate the tags of a client. For each client dwm
* creates a small title window, which is resized whenever the (_NET_)WM_NAME
* properties are updated or the client is moved/resized.
*
* Keys and tagging rules are organized as arrays and defined in the config.h
* file. These arrays are kept static in event.o and tag.o respectively,
* because no other part of dwm needs access to them. The current layout is
* represented by the lt pointer.
*
* To understand everything else, start reading main.c:main().
*/
#include "config.h"
#include <X11/Xlib.h>
/* mask shorthands, used in event.c and client.c */
#define BUTTONMASK (ButtonPressMask | ButtonReleaseMask)
enum { BarTop, BarBot, BarOff }; /* bar position */
enum { CurNormal, CurResize, CurMove, CurLast }; /* cursor */
enum { ColBorder, ColFG, ColBG, ColLast }; /* color */
enum { NetSupported, NetWMName, NetLast }; /* EWMH atoms */
enum { WMProtocols, WMDelete, WMName, WMState, WMLast };/* default atoms */
typedef struct Client Client;
struct Client {
char name[256];
int x, y, w, h;
int rx, ry, rw, rh; /* revert geometry */
int basew, baseh, incw, inch, maxw, maxh, minw, minh;
int minax, maxax, minay, maxay;
long flags;
unsigned int border, oldborder;
Bool isbanned, isfixed, ismax, isfloating;
Bool *tags;
Client *next;
Client *prev;
Client *snext;
Window win;
};
typedef struct {
int x, y, w, h;
unsigned long norm[ColLast];
unsigned long sel[ColLast];
Drawable drawable;
GC gc;
struct {
int ascent;
int descent;
int height;
XFontSet set;
XFontStruct *xfont;
} font;
} DC; /* draw context */
extern const char *tags[]; /* all tags */
extern char stext[256]; /* status text */
extern int screen, sx, sy, sw, sh; /* screen geometry */
extern int wax, way, wah, waw; /* windowarea geometry */
extern unsigned int bh, blw, bpos; /* bar height, bar layout label width, bar position */
extern unsigned int ntags, numlockmask; /* number of tags, numlock mask */
extern void (*handler[LASTEvent])(XEvent *); /* event handler */
extern Atom wmatom[WMLast], netatom[NetLast];
extern Bool selscreen, *seltags; /* seltags is array of Bool */
extern Client *clients, *sel, *stack; /* global client list and stack */
extern Cursor cursor[CurLast];
extern DC dc; /* global draw context */
extern Display *dpy;
extern Window root, barwin;
/* bar.c */
void drawbar(void); /* draw the bar */
void initbar(void); /* initializes the bar */
void initstyle(void); /* initializes colors and font */
unsigned int textw(const char *text); /* return the width of text in px*/
void togglebar(const char *arg); /* shows/hides the bar */
void updatebarpos(void); /* updates the bar position */
/* client.c */
void attach(Client *c); /* attaches c to global client list */
void ban(Client *c); /* bans c */
void configure(Client *c); /* send synthetic configure event */
void detach(Client *c); /* detaches c from global client list */
void focus(Client *c); /* focus c if visible && !NULL, or focus top visible */
void killclient(const char *arg); /* kill sel nicely */
void manage(Window w, XWindowAttributes *wa); /* manage new client */
void resize(Client *c, int x, int y,
int w, int h, Bool sizehints); /* resize with given coordinates c*/
void unban(Client *c); /* unbans c */
void unmanage(Client *c); /* unmanage c */
void updatesizehints(Client *c); /* update the size hint variables of c */
void updatetitle(Client *c); /* update the name of c */
/* event.c */
void grabkeys(void); /* grab all keys defined in config.h */
/* main.c */
Bool gettextprop(Window w, Atom atom,
char *text, unsigned int size); /* return text property, UTF-8 compliant */
void quit(const char *arg); /* quit dwm nicely */
int xerror(Display *dsply, XErrorEvent *ee); /* dwm's X error handler */
/* screen.c */
void applyrules(Client *c); /* applies rules to c */
void arrange(void); /* arranges all windows depending on the layout in use */
void compileregs(void); /* initialize regexps of rules defined in config.h */
void focusnext(const char *arg); /* focuses next visible client */
void focusprev(const char *arg); /* focuses prev visible client */
const char *getsymbol(void); /* returns symbol of enabled layout */
void initlayouts(void); /* initialize layout array */
Bool isarrange(void (*func)()); /* returns True if func is the layout function in use */
Bool isfloating(void); /* returns True if floating layout is enabled */
Bool isvisible(Client *c); /* returns True if client is visible */
Client *nexttiled(Client *c); /* returns tiled successor of c */
void restack(void); /* restores z layers of all clients */
void setlayout(const char *arg); /* sets layout, NULL means next layout */
void tag(const char *arg); /* tags sel with arg's index */
void togglefloating(const char *arg); /* toggles sel between floating/tiled state */
void togglemax(const char *arg); /* toggles maximization of floating client */
void toggletag(const char *arg); /* toggles sel tags with arg's index */
void toggleview(const char *arg); /* toggles the tag with arg's index (in)visible */
void view(const char *arg); /* views the tag with arg's index */
/* util.c */
void *emallocz(unsigned int size); /* allocates zero-initialized memory, exits on error */
void eprint(const char *errstr, ...); /* prints errstr and exits with 1 */
void spawn(const char *arg); /* forks a new subprocess with arg's cmd */

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/* See LICENSE file for copyright and license details. */
#include "dwm.h"
#include <stdlib.h>
#include <X11/keysym.h>
#include <X11/Xatom.h>
#include <X11/Xutil.h>
/* static */
typedef struct {
unsigned long mod;
KeySym keysym;
void (*func)(const char *arg);
const char *arg;
} Key;
#define CLEANMASK(mask) (mask & ~(numlockmask | LockMask))
#define MOUSEMASK (BUTTONMASK | PointerMotionMask)
static Client *
getclient(Window w) {
Client *c;
for(c = clients; c && c->win != w; c = c->next);
return c;
}
static void
movemouse(Client *c) {
int x1, y1, ocx, ocy, di, nx, ny;
unsigned int dui;
Window dummy;
XEvent ev;
ocx = nx = c->x;
ocy = ny = c->y;
if(XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
None, cursor[CurMove], CurrentTime) != GrabSuccess)
return;
c->ismax = False;
XQueryPointer(dpy, root, &dummy, &dummy, &x1, &y1, &di, &di, &dui);
for(;;) {
XMaskEvent(dpy, MOUSEMASK | ExposureMask | SubstructureRedirectMask, &ev);
switch (ev.type) {
case ButtonRelease:
XUngrabPointer(dpy, CurrentTime);
return;
case ConfigureRequest:
case Expose:
case MapRequest:
handler[ev.type](&ev);
break;
case MotionNotify:
XSync(dpy, False);
nx = ocx + (ev.xmotion.x - x1);
ny = ocy + (ev.xmotion.y - y1);
if(abs(wax + nx) < SNAP)
nx = wax;
else if(abs((wax + waw) - (nx + c->w + 2 * c->border)) < SNAP)
nx = wax + waw - c->w - 2 * c->border;
if(abs(way - ny) < SNAP)
ny = way;
else if(abs((way + wah) - (ny + c->h + 2 * c->border)) < SNAP)
ny = way + wah - c->h - 2 * c->border;
resize(c, nx, ny, c->w, c->h, False);
break;
}
}
}
static void
resizemouse(Client *c) {
int ocx, ocy;
int nw, nh;
XEvent ev;
ocx = c->x;
ocy = c->y;
if(XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
None, cursor[CurResize], CurrentTime) != GrabSuccess)
return;
c->ismax = False;
XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->border - 1, c->h + c->border - 1);
for(;;) {
XMaskEvent(dpy, MOUSEMASK | ExposureMask | SubstructureRedirectMask , &ev);
switch(ev.type) {
case ButtonRelease:
XWarpPointer(dpy, None, c->win, 0, 0, 0, 0,
c->w + c->border - 1, c->h + c->border - 1);
XUngrabPointer(dpy, CurrentTime);
while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
return;
case ConfigureRequest:
case Expose:
case MapRequest:
handler[ev.type](&ev);
break;
case MotionNotify:
XSync(dpy, False);
if((nw = ev.xmotion.x - ocx - 2 * c->border + 1) <= 0)
nw = 1;
if((nh = ev.xmotion.y - ocy - 2 * c->border + 1) <= 0)
nh = 1;
resize(c, c->x, c->y, nw, nh, True);
break;
}
}
}
static void
buttonpress(XEvent *e) {
unsigned int i, x;
Client *c;
XButtonPressedEvent *ev = &e->xbutton;
if(barwin == ev->window) {
x = 0;
for(i = 0; i < ntags; i++) {
x += textw(tags[i]);
if(ev->x < x) {
if(ev->button == Button1) {
if(ev->state & MODKEY)
tag(tags[i]);
else
view(tags[i]);
}
else if(ev->button == Button3) {
if(ev->state & MODKEY)
toggletag(tags[i]);
else
toggleview(tags[i]);
}
return;
}
}
if((ev->x < x + blw) && ev->button == Button1)
setlayout(NULL);
}
else if((c = getclient(ev->window))) {
focus(c);
if(CLEANMASK(ev->state) != MODKEY)
return;
if(ev->button == Button1 && (isfloating() || c->isfloating)) {
restack();
movemouse(c);
}
else if(ev->button == Button2)
zoom(NULL);
else if(ev->button == Button3
&& (isfloating() || c->isfloating) && !c->isfixed)
{
restack();
resizemouse(c);
}
}
}
static void
configurerequest(XEvent *e) {
Client *c;
XConfigureRequestEvent *ev = &e->xconfigurerequest;
XWindowChanges wc;
if((c = getclient(ev->window))) {
c->ismax = False;
if(ev->value_mask & CWBorderWidth)
c->border = ev->border_width;
if(c->isfixed || c->isfloating || isfloating()) {
if(ev->value_mask & CWX)
c->x = ev->x;
if(ev->value_mask & CWY)
c->y = ev->y;
if(ev->value_mask & CWWidth)
c->w = ev->width;
if(ev->value_mask & CWHeight)
c->h = ev->height;
if((c->x + c->w) > sw && c->isfloating)
c->x = sw / 2 - c->w / 2; /* center in x direction */
if((c->y + c->h) > sh && c->isfloating)
c->y = sh / 2 - c->h / 2; /* center in y direction */
if((ev->value_mask & (CWX | CWY))
&& !(ev->value_mask & (CWWidth | CWHeight)))
configure(c);
if(isvisible(c))
XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h);
}
else
configure(c);
}
else {
wc.x = ev->x;
wc.y = ev->y;
wc.width = ev->width;
wc.height = ev->height;
wc.border_width = ev->border_width;
wc.sibling = ev->above;
wc.stack_mode = ev->detail;
XConfigureWindow(dpy, ev->window, ev->value_mask, &wc);
}
XSync(dpy, False);
}
static void
configurenotify(XEvent *e) {
XConfigureEvent *ev = &e->xconfigure;
if (ev->window == root && (ev->width != sw || ev->height != sh)) {
sw = ev->width;
sh = ev->height;
XFreePixmap(dpy, dc.drawable);
dc.drawable = XCreatePixmap(dpy, root, sw, bh, DefaultDepth(dpy, screen));
XResizeWindow(dpy, barwin, sw, bh);
updatebarpos();
arrange();
}
}
static void
destroynotify(XEvent *e) {
Client *c;
XDestroyWindowEvent *ev = &e->xdestroywindow;
if((c = getclient(ev->window)))
unmanage(c);
}
static void
enternotify(XEvent *e) {
Client *c;
XCrossingEvent *ev = &e->xcrossing;
if(ev->mode != NotifyNormal || ev->detail == NotifyInferior)
return;
if((c = getclient(ev->window)))
focus(c);
else if(ev->window == root) {
selscreen = True;
focus(NULL);
}
}
static void
expose(XEvent *e) {
XExposeEvent *ev = &e->xexpose;
if(ev->count == 0) {
if(barwin == ev->window)
drawbar();
}
}
static void
keypress(XEvent *e) {
KEYS
unsigned int len = sizeof keys / sizeof keys[0];
unsigned int i;
KeySym keysym;
XKeyEvent *ev = &e->xkey;
keysym = XKeycodeToKeysym(dpy, (KeyCode)ev->keycode, 0);
for(i = 0; i < len; i++)
if(keysym == keys[i].keysym
&& CLEANMASK(keys[i].mod) == CLEANMASK(ev->state))
{
if(keys[i].func)
keys[i].func(keys[i].arg);
}
}
static void
leavenotify(XEvent *e) {
XCrossingEvent *ev = &e->xcrossing;
if((ev->window == root) && !ev->same_screen) {
selscreen = False;
focus(NULL);
}
}
static void
mappingnotify(XEvent *e) {
XMappingEvent *ev = &e->xmapping;
XRefreshKeyboardMapping(ev);
if(ev->request == MappingKeyboard)
grabkeys();
}
static void
maprequest(XEvent *e) {
static XWindowAttributes wa;
XMapRequestEvent *ev = &e->xmaprequest;
if(!XGetWindowAttributes(dpy, ev->window, &wa))
return;
if(wa.override_redirect)
return;
if(!getclient(ev->window))
manage(ev->window, &wa);
}
static void
propertynotify(XEvent *e) {
Client *c;
Window trans;
XPropertyEvent *ev = &e->xproperty;
if(ev->state == PropertyDelete)
return; /* ignore */
if((c = getclient(ev->window))) {
switch (ev->atom) {
default: break;
case XA_WM_TRANSIENT_FOR:
XGetTransientForHint(dpy, c->win, &trans);
if(!c->isfloating && (c->isfloating = (getclient(trans) != NULL)))
arrange();
break;
case XA_WM_NORMAL_HINTS:
updatesizehints(c);
break;
}
if(ev->atom == XA_WM_NAME || ev->atom == netatom[NetWMName]) {
updatetitle(c);
if(c == sel)
drawbar();
}
}
}
static void
unmapnotify(XEvent *e) {
Client *c;
XUnmapEvent *ev = &e->xunmap;
if((c = getclient(ev->window)))
unmanage(c);
}
/* extern */
void (*handler[LASTEvent]) (XEvent *) = {
[ButtonPress] = buttonpress,
[ConfigureRequest] = configurerequest,
[ConfigureNotify] = configurenotify,
[DestroyNotify] = destroynotify,
[EnterNotify] = enternotify,
[LeaveNotify] = leavenotify,
[Expose] = expose,
[KeyPress] = keypress,
[MappingNotify] = mappingnotify,
[MapRequest] = maprequest,
[PropertyNotify] = propertynotify,
[UnmapNotify] = unmapnotify
};
void
grabkeys(void) {
KEYS
unsigned int len = sizeof keys / sizeof keys[0];
unsigned int i;
KeyCode code;
XUngrabKey(dpy, AnyKey, AnyModifier, root);
for(i = 0; i < len; i++) {
code = XKeysymToKeycode(dpy, keys[i].keysym);
XGrabKey(dpy, code, keys[i].mod, root, True,
GrabModeAsync, GrabModeAsync);
XGrabKey(dpy, code, keys[i].mod | LockMask, root, True,
GrabModeAsync, GrabModeAsync);
XGrabKey(dpy, code, keys[i].mod | numlockmask, root, True,
GrabModeAsync, GrabModeAsync);
XGrabKey(dpy, code, keys[i].mod | numlockmask | LockMask, root, True,
GrabModeAsync, GrabModeAsync);
}
}

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/* See LICENSE file for copyright and license details. */
#include "dwm.h"
#include <errno.h>
#include <locale.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/select.h>
#include <X11/cursorfont.h>
#include <X11/keysym.h>
#include <X11/Xatom.h>
#include <X11/Xproto.h>
#include <X11/Xutil.h>
/* extern */
char stext[256];
int screen, sx, sy, sw, sh, wax, way, waw, wah;
unsigned int ntags;
unsigned int numlockmask = 0;
Atom wmatom[WMLast], netatom[NetLast];
Bool *seltags;
Bool selscreen = True;
Client *clients = NULL;
Client *sel = NULL;
Client *stack = NULL;
Cursor cursor[CurLast];
Display *dpy;
Window root;
/* static */
static int (*xerrorxlib)(Display *, XErrorEvent *);
static Bool otherwm, readin;
static Bool running = True;
static void
cleanup(void) {
close(STDIN_FILENO);
while(stack) {
unban(stack);
unmanage(stack);
}
if(dc.font.set)
XFreeFontSet(dpy, dc.font.set);
else
XFreeFont(dpy, dc.font.xfont);
XUngrabKey(dpy, AnyKey, AnyModifier, root);
XFreePixmap(dpy, dc.drawable);
XFreeGC(dpy, dc.gc);
XDestroyWindow(dpy, barwin);
XFreeCursor(dpy, cursor[CurNormal]);
XFreeCursor(dpy, cursor[CurResize]);
XFreeCursor(dpy, cursor[CurMove]);
XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
XSync(dpy, False);
free(seltags);
}
static long
getstate(Window w) {
int format, status;
long result = -1;
unsigned char *p = NULL;
unsigned long n, extra;
Atom real;
status = XGetWindowProperty(dpy, w, wmatom[WMState], 0L, 2L, False, wmatom[WMState],
&real, &format, &n, &extra, (unsigned char **)&p);
if(status != Success)
return -1;
if(n != 0)
result = *p;
XFree(p);
return result;
}
static void
scan(void) {
unsigned int i, num;
Window *wins, d1, d2;
XWindowAttributes wa;
wins = NULL;
if(XQueryTree(dpy, root, &d1, &d2, &wins, &num)) {
for(i = 0; i < num; i++) {
if(!XGetWindowAttributes(dpy, wins[i], &wa)
|| wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1))
continue;
if(wa.map_state == IsViewable || getstate(wins[i]) == IconicState)
manage(wins[i], &wa);
}
for(i = 0; i < num; i++) { /* now the transients */
if(!XGetWindowAttributes(dpy, wins[i], &wa))
continue;
if(XGetTransientForHint(dpy, wins[i], &d1)
&& (wa.map_state == IsViewable || getstate(wins[i]) == IconicState))
manage(wins[i], &wa);
}
}
if(wins)
XFree(wins);
}
static void
setup(void) {
int i, j;
unsigned int mask;
Window w;
XModifierKeymap *modmap;
XSetWindowAttributes wa;
/* init atoms */
wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);
wmatom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
wmatom[WMName] = XInternAtom(dpy, "WM_NAME", False);
wmatom[WMState] = XInternAtom(dpy, "WM_STATE", False);
netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False);
netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False);
XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32,
PropModeReplace, (unsigned char *) netatom, NetLast);
/* init cursors */
cursor[CurNormal] = XCreateFontCursor(dpy, XC_left_ptr);
cursor[CurResize] = XCreateFontCursor(dpy, XC_sizing);
cursor[CurMove] = XCreateFontCursor(dpy, XC_fleur);
/* init modifier map */
modmap = XGetModifierMapping(dpy);
for (i = 0; i < 8; i++)
for (j = 0; j < modmap->max_keypermod; j++) {
if(modmap->modifiermap[i * modmap->max_keypermod + j]
== XKeysymToKeycode(dpy, XK_Num_Lock))
numlockmask = (1 << i);
}
XFreeModifiermap(modmap);
/* select for events */
wa.event_mask = SubstructureRedirectMask | SubstructureNotifyMask
| EnterWindowMask | LeaveWindowMask | StructureNotifyMask;
wa.cursor = cursor[CurNormal];
XChangeWindowAttributes(dpy, root, CWEventMask | CWCursor, &wa);
XSelectInput(dpy, root, wa.event_mask);
grabkeys();
compileregs();
for(ntags = 0; tags[ntags]; ntags++);
seltags = emallocz(sizeof(Bool) * ntags);
seltags[0] = True;
/* geometry */
sx = sy = 0;
sw = DisplayWidth(dpy, screen);
sh = DisplayHeight(dpy, screen);
initstyle();
initlayouts();
initbar();
/* multihead support */
selscreen = XQueryPointer(dpy, root, &w, &w, &i, &i, &i, &i, &mask);
}
/*
* Startup Error handler to check if another window manager
* is already running.
*/
static int
xerrorstart(Display *dsply, XErrorEvent *ee) {
otherwm = True;
return -1;
}
/* extern */
Bool
gettextprop(Window w, Atom atom, char *text, unsigned int size) {
char **list = NULL;
int n;
XTextProperty name;
if(!text || size == 0)
return False;
text[0] = '\0';
XGetTextProperty(dpy, w, &name, atom);
if(!name.nitems)
return False;
if(name.encoding == XA_STRING)
strncpy(text, (char *)name.value, size - 1);
else {
if(XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success
&& n > 0 && *list)
{
strncpy(text, *list, size - 1);
XFreeStringList(list);
}
}
text[size - 1] = '\0';
XFree(name.value);
return True;
}
void
quit(const char *arg) {
readin = running = False;
}
/* There's no way to check accesses to destroyed windows, thus those cases are
* ignored (especially on UnmapNotify's). Other types of errors call Xlibs
* default error handler, which may call exit.
*/
int
xerror(Display *dpy, XErrorEvent *ee) {
if(ee->error_code == BadWindow
|| (ee->request_code == X_SetInputFocus && ee->error_code == BadMatch)
|| (ee->request_code == X_PolyText8 && ee->error_code == BadDrawable)
|| (ee->request_code == X_PolyFillRectangle && ee->error_code == BadDrawable)
|| (ee->request_code == X_PolySegment && ee->error_code == BadDrawable)
|| (ee->request_code == X_ConfigureWindow && ee->error_code == BadMatch)
|| (ee->request_code == X_GrabKey && ee->error_code == BadAccess)
|| (ee->request_code == X_CopyArea && ee->error_code == BadDrawable))
return 0;
fprintf(stderr, "dwm: fatal error: request code=%d, error code=%d\n",
ee->request_code, ee->error_code);
return xerrorxlib(dpy, ee); /* may call exit */
}
int
main(int argc, char *argv[]) {
char *p;
int r, xfd;
fd_set rd;
XEvent ev;
if(argc == 2 && !strcmp("-v", argv[1]))
eprint("dwm-"VERSION", © 2006-2007 A. R. Garbe, S. van Dijk, J. Salmi, P. Hruby, S. Nagy\n");
else if(argc != 1)
eprint("usage: dwm [-v]\n");
setlocale(LC_CTYPE, "");
if(!(dpy = XOpenDisplay(0)))
eprint("dwm: cannot open display\n");
xfd = ConnectionNumber(dpy);
screen = DefaultScreen(dpy);
root = RootWindow(dpy, screen);
otherwm = False;
XSetErrorHandler(xerrorstart);
/* this causes an error if some other window manager is running */
XSelectInput(dpy, root, SubstructureRedirectMask);
XSync(dpy, False);
if(otherwm)
eprint("dwm: another window manager is already running\n");
XSync(dpy, False);
XSetErrorHandler(NULL);
xerrorxlib = XSetErrorHandler(xerror);
XSync(dpy, False);
setup();
drawbar();
scan();
/* main event loop, also reads status text from stdin */
XSync(dpy, False);
readin = True;
while(running) {
FD_ZERO(&rd);
if(readin)
FD_SET(STDIN_FILENO, &rd);
FD_SET(xfd, &rd);
if(select(xfd + 1, &rd, NULL, NULL, NULL) == -1) {
if(errno == EINTR)
continue;
eprint("select failed\n");
}
if(FD_ISSET(STDIN_FILENO, &rd)) {
switch(r = read(STDIN_FILENO, stext, sizeof stext - 1)) {
case -1:
strncpy(stext, strerror(errno), sizeof stext - 1);
stext[sizeof stext - 1] = '\0';
readin = False;
break;
case 0:
strncpy(stext, "EOF", 4);
readin = False;
break;
default:
for(stext[r] = '\0', p = stext + strlen(stext) - 1; p >= stext && *p == '\n'; *p-- = '\0');
for(; p >= stext && *p != '\n'; --p);
if(p > stext)
strncpy(stext, p + 1, sizeof stext);
}
drawbar();
}
while(XPending(dpy)) {
XNextEvent(dpy, &ev);
if(handler[ev.type])
(handler[ev.type])(&ev); /* call handler */
}
}
cleanup();
XCloseDisplay(dpy);
return 0;
}

340
screen.c
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@ -1,340 +0,0 @@
/* See LICENSE file for copyright and license details. */
#include "dwm.h"
#include <regex.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <X11/Xutil.h>
/* static */
typedef struct {
const char *symbol;
void (*arrange)(void);
} Layout;
typedef struct {
const char *prop;
const char *tags;
Bool isfloating;
} Rule;
typedef struct {
regex_t *propregex;
regex_t *tagregex;
} Regs;
TAGS
RULES
static unsigned int nrules = 0;
static unsigned int nlayouts = 0;
static unsigned int ltidx = 0; /* default */
static Regs *regs = NULL;
static unsigned int
idxoftag(const char *tag) {
unsigned int i;
for(i = 0; i < ntags; i++)
if(tags[i] == tag)
return i;
return 0;
}
static void
floating(void) { /* default floating layout */
Client *c;
for(c = clients; c; c = c->next)
if(isvisible(c))
resize(c, c->x, c->y, c->w, c->h, True);
}
LAYOUTS
/* extern */
unsigned int blw = 0;
void
applyrules(Client *c) {
static char buf[512];
unsigned int i, j;
regmatch_t tmp;
Bool matched = False;
XClassHint ch = { 0 };
/* rule matching */
XGetClassHint(dpy, c->win, &ch);
snprintf(buf, sizeof buf, "%s:%s:%s",
ch.res_class ? ch.res_class : "",
ch.res_name ? ch.res_name : "", c->name);
for(i = 0; i < nrules; i++)
if(regs[i].propregex && !regexec(regs[i].propregex, buf, 1, &tmp, 0)) {
c->isfloating = rules[i].isfloating;
for(j = 0; regs[i].tagregex && j < ntags; j++) {
if(!regexec(regs[i].tagregex, 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] = seltags[i];
}
void
arrange(void) {
Client *c;
for(c = clients; c; c = c->next)
if(isvisible(c))
unban(c);
else
ban(c);
layouts[ltidx].arrange();
focus(NULL);
restack();
}
void
compileregs(void) {
unsigned int i;
regex_t *reg;
if(regs)
return;
nrules = sizeof rules / sizeof rules[0];
regs = emallocz(nrules * sizeof(Regs));
for(i = 0; i < nrules; i++) {
if(rules[i].prop) {
reg = emallocz(sizeof(regex_t));
if(regcomp(reg, rules[i].prop, REG_EXTENDED))
free(reg);
else
regs[i].propregex = reg;
}
if(rules[i].tags) {
reg = emallocz(sizeof(regex_t));
if(regcomp(reg, rules[i].tags, REG_EXTENDED))
free(reg);
else
regs[i].tagregex = reg;
}
}
}
void
focusnext(const char *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(const char *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();
}
}
const char *
getsymbol(void)
{
return layouts[ltidx].symbol;
}
void
initlayouts(void) {
unsigned int i, w;
nlayouts = sizeof layouts / sizeof layouts[0];
for(blw = i = 0; i < nlayouts; i++) {
w = textw(layouts[i].symbol);
if(w > blw)
blw = w;
}
}
Bool
isfloating(void) {
return layouts[ltidx].arrange == floating;
}
Bool
isarrange(void (*func)())
{
return func == layouts[ltidx].arrange;
}
Bool
isvisible(Client *c) {
unsigned int i;
for(i = 0; i < ntags; i++)
if(c->tags[i] && seltags[i])
return True;
return False;
}
Client *
nexttiled(Client *c) {
for(; c && (c->isfloating || !isvisible(c)); c = c->next);
return c;
}
void
restack(void) {
Client *c;
XEvent ev;
XWindowChanges wc;
drawbar();
if(!sel)
return;
if(sel->isfloating || isfloating())
XRaiseWindow(dpy, sel->win);
if(!isfloating()) {
wc.stack_mode = Below;
wc.sibling = barwin;
if(!sel->isfloating) {
XConfigureWindow(dpy, sel->win, CWSibling | CWStackMode, &wc);
wc.sibling = sel->win;
}
for(c = nexttiled(clients); c; c = nexttiled(c->next)) {
if(c == sel)
continue;
XConfigureWindow(dpy, c->win, CWSibling | CWStackMode, &wc);
wc.sibling = c->win;
}
}
XSync(dpy, False);
while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
}
void
setlayout(const char *arg) {
unsigned int i;
if(!arg) {
if(++ltidx == nlayouts)
ltidx = 0;;
}
else {
for(i = 0; i < nlayouts; i++)
if(!strcmp(arg, layouts[i].symbol))
break;
if(i == nlayouts)
return;
ltidx = i;
}
if(sel)
arrange();
else
drawbar();
}
void
tag(const char *arg) {
unsigned int i;
if(!sel)
return;
for(i = 0; i < ntags; i++)
sel->tags[i] = arg == NULL;
i = idxoftag(arg);
if(i >= 0 && i < ntags)
sel->tags[i] = True;
arrange();
}
void
togglefloating(const char *arg) {
if(!sel)
return;
sel->isfloating = !sel->isfloating;
if(sel->isfloating)
resize(sel, sel->x, sel->y, sel->w, sel->h, True);
arrange();
}
void
togglemax(const char *arg) {
XEvent ev;
if(!sel || (!isfloating() && !sel->isfloating) || sel->isfixed)
return;
if((sel->ismax = !sel->ismax)) {
sel->rx = sel->x;
sel->ry = sel->y;
sel->rw = sel->w;
sel->rh = sel->h;
resize(sel, wax, way, waw - 2 * sel->border, wah - 2 * sel->border, True);
}
else
resize(sel, sel->rx, sel->ry, sel->rw, sel->rh, True);
drawbar();
while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
}
void
toggletag(const char *arg) {
unsigned int i, j;
if(!sel)
return;
i = idxoftag(arg);
sel->tags[i] = !sel->tags[i];
for(j = 0; j < ntags && !sel->tags[j]; j++);
if(j == ntags)
sel->tags[i] = True;
arrange();
}
void
toggleview(const char *arg) {
unsigned int i, j;
i = idxoftag(arg);
seltags[i] = !seltags[i];
for(j = 0; j < ntags && !seltags[j]; j++);
if(j == ntags)
seltags[i] = True; /* cannot toggle last view */
arrange();
}
void
view(const char *arg) {
unsigned int i;
for(i = 0; i < ntags; i++)
seltags[i] = arg == NULL;
i = idxoftag(arg);
if(i >= 0 && i < ntags)
seltags[i] = True;
arrange();
}

85
tile.c
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@ -1,85 +0,0 @@
/* See LICENSE file for copyright and license details. */
#include "dwm.h"
#include <stdio.h>
/* static */
static double mwfact = MWFACT;
/* extern */
void
setmwfact(const char *arg) {
double delta;
if(!isarrange(tile))
return;
/* arg handling, manipulate mwfact */
if(arg == NULL)
mwfact = MWFACT;
else if(1 == sscanf(arg, "%lf", &delta)) {
if(arg[0] != '+' && arg[0] != '-')
mwfact = delta;
else
mwfact += delta;
if(mwfact < 0.1)
mwfact = 0.1;
else if(mwfact > 0.9)
mwfact = 0.9;
}
arrange();
}
void
tile(void) {
unsigned int i, n, nx, ny, nw, nh, mw, th;
Client *c;
for(n = 0, c = nexttiled(clients); c; c = nexttiled(c->next))
n++;
/* window geoms */
mw = (n == 1) ? waw : mwfact * waw;
th = (n > 1) ? wah / (n - 1) : 0;
if(n > 1 && th < bh)
th = wah;
nx = wax;
ny = way;
for(i = 0, c = nexttiled(clients); c; c = nexttiled(c->next), i++) {
c->ismax = False;
if(i == 0) { /* master */
nw = mw - 2 * c->border;
nh = wah - 2 * c->border;
}
else { /* tile window */
if(i == 1) {
ny = way;
nx += mw;
}
nw = waw - mw - 2 * c->border;
if(i + 1 == n) /* remainder */
nh = (way + wah) - ny - 2 * c->border;
else
nh = th - 2 * c->border;
}
resize(c, nx, ny, nw, nh, RESIZEHINTS);
if(n > 1 && th != wah)
ny += nh + 2 * c->border;
}
}
void
zoom(const char *arg) {
Client *c;
if(!sel || !isarrange(tile) || sel->isfloating)
return;
if((c = sel) == nexttiled(clients))
if(!(c = nexttiled(c->next)))
return;
detach(c);
attach(c);
focus(c);
arrange();
}

6
tile.h
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@ -1,6 +0,0 @@
/* See LICENSE file for copyright and license details. */
/* tile.c */
void setmwfact(const char *arg); /* sets master width factor */
void tile(void); /* arranges all windows tiled */
void zoom(const char *arg); /* zooms the focused client to master area, arg is ignored */

52
util.c
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@ -1,52 +0,0 @@
/* See LICENSE file for copyright and license details. */
#include "dwm.h"
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/wait.h>
#include <unistd.h>
/* extern */
void *
emallocz(unsigned int size) {
void *res = calloc(1, size);
if(!res)
eprint("fatal: could not malloc() %u bytes\n", size);
return res;
}
void
eprint(const char *errstr, ...) {
va_list ap;
va_start(ap, errstr);
vfprintf(stderr, errstr, ap);
va_end(ap);
exit(EXIT_FAILURE);
}
void
spawn(const char *arg) {
static char *shell = NULL;
if(!shell && !(shell = getenv("SHELL")))
shell = "/bin/sh";
if(!arg)
return;
/* The double-fork construct avoids zombie processes and keeps the code
* clean from stupid signal handlers. */
if(fork() == 0) {
if(fork() == 0) {
if(dpy)
close(ConnectionNumber(dpy));
setsid();
execl(shell, shell, "-c", arg, (char *)NULL);
fprintf(stderr, "dwm: execl '%s -c %s'", shell, arg);
perror(" failed");
}
exit(0);
}
wait(0);
}
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