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Adding alpha patch

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bakkeby 2019-09-05 00:16:39 +02:00
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*.o
dwm
config.h

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MIT/X Consortium License
© 2006-2019 Anselm R Garbe <anselm@garbe.ca>
© 2006-2009 Jukka Salmi <jukka at salmi dot ch>
© 2006-2007 Sander van Dijk <a dot h dot vandijk at gmail dot com>
© 2007-2011 Peter Hartlich <sgkkr at hartlich dot com>
© 2007-2009 Szabolcs Nagy <nszabolcs at gmail dot com>
© 2007-2009 Christof Musik <christof at sendfax dot de>
© 2007-2009 Premysl Hruby <dfenze at gmail dot com>
© 2007-2008 Enno Gottox Boland <gottox at s01 dot de>
© 2008 Martin Hurton <martin dot hurton at gmail dot com>
© 2008 Neale Pickett <neale dot woozle dot org>
© 2009 Mate Nagy <mnagy at port70 dot net>
© 2010-2016 Hiltjo Posthuma <hiltjo@codemadness.org>
© 2010-2012 Connor Lane Smith <cls@lubutu.com>
© 2011 Christoph Lohmann <20h@r-36.net>
© 2015-2016 Quentin Rameau <quinq@fifth.space>
© 2015-2016 Eric Pruitt <eric.pruitt@gmail.com>
© 2016-2017 Markus Teich <markus.teich@stusta.mhn.de>
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Software"),
to deal in the Software without restriction, including without limitation
the rights to use, copy, modify, merge, publish, distribute, sublicense,
and/or sell copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.

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# dwm - dynamic window manager
# See LICENSE file for copyright and license details.
include config.mk
SRC = drw.c dwm.c util.c
OBJ = ${SRC:.c=.o}
all: options dwm
options:
@echo dwm build options:
@echo "CFLAGS = ${CFLAGS}"
@echo "LDFLAGS = ${LDFLAGS}"
@echo "CC = ${CC}"
.c.o:
${CC} -c ${CFLAGS} $<
${OBJ}: config.h config.mk
config.h:
cp config.def.h $@
dwm: ${OBJ}
${CC} -o $@ ${OBJ} ${LDFLAGS}
clean:
rm -f dwm ${OBJ} dwm-${VERSION}.tar.gz
dist: clean
mkdir -p dwm-${VERSION}
cp -R LICENSE Makefile README config.def.h config.mk\
dwm.1 drw.h util.h ${SRC} dwm.png transient.c dwm-${VERSION}
tar -cf dwm-${VERSION}.tar dwm-${VERSION}
gzip dwm-${VERSION}.tar
rm -rf dwm-${VERSION}
install: all
mkdir -p ${DESTDIR}${PREFIX}/bin
cp -f dwm ${DESTDIR}${PREFIX}/bin
chmod 755 ${DESTDIR}${PREFIX}/bin/dwm
mkdir -p ${DESTDIR}${MANPREFIX}/man1
sed "s/VERSION/${VERSION}/g" < dwm.1 > ${DESTDIR}${MANPREFIX}/man1/dwm.1
chmod 644 ${DESTDIR}${MANPREFIX}/man1/dwm.1
uninstall:
rm -f ${DESTDIR}${PREFIX}/bin/dwm\
${DESTDIR}${MANPREFIX}/man1/dwm.1
.PHONY: all options clean dist install uninstall

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dwm - dynamic window manager
============================
dwm is an extremely fast, small, and dynamic window manager for X.
Requirements
------------
In order to build dwm you need the Xlib header files.
Installation
------------
Edit config.mk to match your local setup (dwm is installed into
the /usr/local namespace by default).
Afterwards enter the following command to build and install dwm (if
necessary as root):
make clean install
Running dwm
-----------
Add the following line to your .xinitrc to start dwm using startx:
exec dwm
In order to connect dwm to a specific display, make sure that
the DISPLAY environment variable is set correctly, e.g.:
DISPLAY=foo.bar:1 exec dwm
(This will start dwm on display :1 of the host foo.bar.)
In order to display status info in the bar, you can do something
like this in your .xinitrc:
while xsetroot -name "`date` `uptime | sed 's/.*,//'`"
do
sleep 1
done &
exec dwm
Configuration
-------------
The configuration of dwm is done by creating a custom config.h
and (re)compiling the source code.

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/* See LICENSE file for copyright and license details. */
/* appearance */
static const unsigned int borderpx = 1; /* border pixel of windows */
static const unsigned int snap = 32; /* snap pixel */
static const int showbar = 1; /* 0 means no bar */
static const int topbar = 1; /* 0 means bottom bar */
static const char *fonts[] = { "monospace:size=10" };
static const char dmenufont[] = "monospace:size=10";
static const char col_gray1[] = "#222222";
static const char col_gray2[] = "#444444";
static const char col_gray3[] = "#bbbbbb";
static const char col_gray4[] = "#eeeeee";
static const char col_cyan[] = "#005577";
#if ALPHA_PATCH
static const unsigned int baralpha = 0xd0;
static const unsigned int borderalpha = OPAQUE;
static const unsigned int alphas[][3] = {
/* fg bg border */
[SchemeNorm] = { OPAQUE, baralpha, borderalpha },
[SchemeSel] = { OPAQUE, baralpha, borderalpha },
};
#endif // ALPHA_PATCH
static const char *colors[][3] = {
/* fg bg border */
[SchemeNorm] = { col_gray3, col_gray1, col_gray2 },
[SchemeSel] = { col_gray4, col_cyan, col_cyan },
};
/* tagging */
static const char *tags[] = { "1", "2", "3", "4", "5", "6", "7", "8", "9" };
static const Rule rules[] = {
/* xprop(1):
* WM_CLASS(STRING) = instance, class
* WM_NAME(STRING) = title
*/
/* class instance title tags mask isfloating monitor */
{ "Gimp", NULL, NULL, 0, 1, -1 },
{ "Firefox", NULL, NULL, 1 << 8, 0, -1 },
};
/* layout(s) */
static const float mfact = 0.55; /* factor of master area size [0.05..0.95] */
static const int nmaster = 1; /* number of clients in master area */
static const int resizehints = 1; /* 1 means respect size hints in tiled resizals */
static const Layout layouts[] = {
/* symbol arrange function */
{ "[]=", tile }, /* first entry is default */
{ "><>", NULL }, /* no layout function means floating behavior */
{ "[M]", monocle },
};
/* key definitions */
#define MODKEY Mod1Mask
#define TAGKEYS(KEY,TAG) \
{ MODKEY, KEY, view, {.ui = 1 << TAG} }, \
{ MODKEY|ControlMask, KEY, toggleview, {.ui = 1 << TAG} }, \
{ MODKEY|ShiftMask, KEY, tag, {.ui = 1 << TAG} }, \
{ MODKEY|ControlMask|ShiftMask, KEY, toggletag, {.ui = 1 << TAG} },
/* helper for spawning shell commands in the pre dwm-5.0 fashion */
#define SHCMD(cmd) { .v = (const char*[]){ "/bin/sh", "-c", cmd, NULL } }
/* commands */
static char dmenumon[2] = "0"; /* component of dmenucmd, manipulated in spawn() */
static const char *dmenucmd[] = { "dmenu_run", "-m", dmenumon, "-fn", dmenufont, "-nb", col_gray1, "-nf", col_gray3, "-sb", col_cyan, "-sf", col_gray4, NULL };
static const char *termcmd[] = { "st", NULL };
static Key keys[] = {
/* modifier key function argument */
{ MODKEY, XK_p, spawn, {.v = dmenucmd } },
{ MODKEY|ShiftMask, XK_Return, spawn, {.v = termcmd } },
{ MODKEY, XK_b, togglebar, {0} },
{ MODKEY, XK_j, focusstack, {.i = +1 } },
{ MODKEY, XK_k, focusstack, {.i = -1 } },
{ MODKEY, XK_i, incnmaster, {.i = +1 } },
{ MODKEY, XK_d, incnmaster, {.i = -1 } },
{ MODKEY, XK_h, setmfact, {.f = -0.05} },
{ MODKEY, XK_l, setmfact, {.f = +0.05} },
{ MODKEY, XK_Return, zoom, {0} },
{ MODKEY, XK_Tab, view, {0} },
{ MODKEY|ShiftMask, XK_c, killclient, {0} },
{ MODKEY, XK_t, setlayout, {.v = &layouts[0]} },
{ MODKEY, XK_f, setlayout, {.v = &layouts[1]} },
{ MODKEY, XK_m, setlayout, {.v = &layouts[2]} },
{ MODKEY, XK_space, setlayout, {0} },
{ MODKEY|ShiftMask, XK_space, togglefloating, {0} },
{ MODKEY, XK_0, view, {.ui = ~0 } },
{ MODKEY|ShiftMask, XK_0, tag, {.ui = ~0 } },
{ MODKEY, XK_comma, focusmon, {.i = -1 } },
{ MODKEY, XK_period, focusmon, {.i = +1 } },
{ MODKEY|ShiftMask, XK_comma, tagmon, {.i = -1 } },
{ MODKEY|ShiftMask, XK_period, tagmon, {.i = +1 } },
TAGKEYS( XK_1, 0)
TAGKEYS( XK_2, 1)
TAGKEYS( XK_3, 2)
TAGKEYS( XK_4, 3)
TAGKEYS( XK_5, 4)
TAGKEYS( XK_6, 5)
TAGKEYS( XK_7, 6)
TAGKEYS( XK_8, 7)
TAGKEYS( XK_9, 8)
{ MODKEY|ShiftMask, XK_q, quit, {0} },
};
/* button definitions */
/* click can be ClkTagBar, ClkLtSymbol, ClkStatusText, ClkWinTitle, ClkClientWin, or ClkRootWin */
static Button buttons[] = {
/* click event mask button function argument */
{ ClkLtSymbol, 0, Button1, setlayout, {0} },
{ ClkLtSymbol, 0, Button3, setlayout, {.v = &layouts[2]} },
{ ClkWinTitle, 0, Button2, zoom, {0} },
{ ClkStatusText, 0, Button2, spawn, {.v = termcmd } },
{ ClkClientWin, MODKEY, Button1, movemouse, {0} },
{ ClkClientWin, MODKEY, Button2, togglefloating, {0} },
{ ClkClientWin, MODKEY, Button3, resizemouse, {0} },
{ ClkTagBar, 0, Button1, view, {0} },
{ ClkTagBar, 0, Button3, toggleview, {0} },
{ ClkTagBar, MODKEY, Button1, tag, {0} },
{ ClkTagBar, MODKEY, Button3, toggletag, {0} },
};

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# dwm version
VERSION = 6.2
# Customize below to fit your system
# paths
PREFIX = /usr/local
MANPREFIX = ${PREFIX}/share/man
X11INC = /usr/X11R6/include
X11LIB = /usr/X11R6/lib
# Xinerama, comment if you don't want it
XINERAMALIBS = -lXinerama
XINERAMAFLAGS = -DXINERAMA
# freetype
FREETYPELIBS = -lfontconfig -lXft
FREETYPEINC = /usr/include/freetype2
# OpenBSD (uncomment)
#FREETYPEINC = ${X11INC}/freetype2
# includes and libs
INCS = -I${X11INC} -I${FREETYPEINC}
LIBS = -L${X11LIB} -lX11 ${XINERAMALIBS} ${FREETYPELIBS} -lXrender
# flags
CPPFLAGS = -D_DEFAULT_SOURCE -D_BSD_SOURCE -D_POSIX_C_SOURCE=2 -DVERSION=\"${VERSION}\" ${XINERAMAFLAGS}
#CFLAGS = -g -std=c99 -pedantic -Wall -O0 ${INCS} ${CPPFLAGS}
CFLAGS = -std=c99 -pedantic -Wall -Wno-deprecated-declarations -Os ${INCS} ${CPPFLAGS}
LDFLAGS = ${LIBS}
# Solaris
#CFLAGS = -fast ${INCS} -DVERSION=\"${VERSION}\"
#LDFLAGS = ${LIBS}
# compiler and linker
CC = cc

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/* See LICENSE file for copyright and license details. */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <X11/Xlib.h>
#include <X11/Xft/Xft.h>
#include "drw.h"
#include "util.h"
#define UTF_INVALID 0xFFFD
#define UTF_SIZ 4
static const unsigned char utfbyte[UTF_SIZ + 1] = {0x80, 0, 0xC0, 0xE0, 0xF0};
static const unsigned char utfmask[UTF_SIZ + 1] = {0xC0, 0x80, 0xE0, 0xF0, 0xF8};
static const long utfmin[UTF_SIZ + 1] = { 0, 0, 0x80, 0x800, 0x10000};
static const long utfmax[UTF_SIZ + 1] = {0x10FFFF, 0x7F, 0x7FF, 0xFFFF, 0x10FFFF};
static long
utf8decodebyte(const char c, size_t *i)
{
for (*i = 0; *i < (UTF_SIZ + 1); ++(*i))
if (((unsigned char)c & utfmask[*i]) == utfbyte[*i])
return (unsigned char)c & ~utfmask[*i];
return 0;
}
static size_t
utf8validate(long *u, size_t i)
{
if (!BETWEEN(*u, utfmin[i], utfmax[i]) || BETWEEN(*u, 0xD800, 0xDFFF))
*u = UTF_INVALID;
for (i = 1; *u > utfmax[i]; ++i)
;
return i;
}
static size_t
utf8decode(const char *c, long *u, size_t clen)
{
size_t i, j, len, type;
long udecoded;
*u = UTF_INVALID;
if (!clen)
return 0;
udecoded = utf8decodebyte(c[0], &len);
if (!BETWEEN(len, 1, UTF_SIZ))
return 1;
for (i = 1, j = 1; i < clen && j < len; ++i, ++j) {
udecoded = (udecoded << 6) | utf8decodebyte(c[i], &type);
if (type)
return j;
}
if (j < len)
return 0;
*u = udecoded;
utf8validate(u, len);
return len;
}
Drw *
#if ALPHA_PATCH
drw_create(Display *dpy, int screen, Window root, unsigned int w, unsigned int h, Visual *visual, unsigned int depth, Colormap cmap)
#else
drw_create(Display *dpy, int screen, Window root, unsigned int w, unsigned int h)
#endif // ALPHA_PATCH
{
Drw *drw = ecalloc(1, sizeof(Drw));
drw->dpy = dpy;
drw->screen = screen;
drw->root = root;
drw->w = w;
drw->h = h;
#if ALPHA_PATCH
drw->visual = visual;
drw->depth = depth;
drw->cmap = cmap;
drw->drawable = XCreatePixmap(dpy, root, w, h, depth);
drw->gc = XCreateGC(dpy, drw->drawable, 0, NULL);
#else
drw->drawable = XCreatePixmap(dpy, root, w, h, DefaultDepth(dpy, screen));
drw->gc = XCreateGC(dpy, root, 0, NULL);
#endif // ALPHA_PATCH
XSetLineAttributes(dpy, drw->gc, 1, LineSolid, CapButt, JoinMiter);
return drw;
}
void
drw_resize(Drw *drw, unsigned int w, unsigned int h)
{
if (!drw)
return;
drw->w = w;
drw->h = h;
if (drw->drawable)
XFreePixmap(drw->dpy, drw->drawable);
#if ALPHA_PATCH
drw->drawable = XCreatePixmap(drw->dpy, drw->root, w, h, drw->depth);
#else
drw->drawable = XCreatePixmap(drw->dpy, drw->root, w, h, DefaultDepth(drw->dpy, drw->screen));
#endif // ALPHA_PATCH
}
void
drw_free(Drw *drw)
{
XFreePixmap(drw->dpy, drw->drawable);
XFreeGC(drw->dpy, drw->gc);
free(drw);
}
/* This function is an implementation detail. Library users should use
* drw_fontset_create instead.
*/
static Fnt *
xfont_create(Drw *drw, const char *fontname, FcPattern *fontpattern)
{
Fnt *font;
XftFont *xfont = NULL;
FcPattern *pattern = NULL;
if (fontname) {
/* Using the pattern found at font->xfont->pattern does not yield the
* same substitution results as using the pattern returned by
* FcNameParse; using the latter results in the desired fallback
* behaviour whereas the former just results in missing-character
* rectangles being drawn, at least with some fonts. */
if (!(xfont = XftFontOpenName(drw->dpy, drw->screen, fontname))) {
fprintf(stderr, "error, cannot load font from name: '%s'\n", fontname);
return NULL;
}
if (!(pattern = FcNameParse((FcChar8 *) fontname))) {
fprintf(stderr, "error, cannot parse font name to pattern: '%s'\n", fontname);
XftFontClose(drw->dpy, xfont);
return NULL;
}
} else if (fontpattern) {
if (!(xfont = XftFontOpenPattern(drw->dpy, fontpattern))) {
fprintf(stderr, "error, cannot load font from pattern.\n");
return NULL;
}
} else {
die("no font specified.");
}
/* Do not allow using color fonts. This is a workaround for a BadLength
* error from Xft with color glyphs. Modelled on the Xterm workaround. See
* https://bugzilla.redhat.com/show_bug.cgi?id=1498269
* https://lists.suckless.org/dev/1701/30932.html
* https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=916349
* and lots more all over the internet.
*/
FcBool iscol;
if(FcPatternGetBool(xfont->pattern, FC_COLOR, 0, &iscol) == FcResultMatch && iscol) {
XftFontClose(drw->dpy, xfont);
return NULL;
}
font = ecalloc(1, sizeof(Fnt));
font->xfont = xfont;
font->pattern = pattern;
font->h = xfont->ascent + xfont->descent;
font->dpy = drw->dpy;
return font;
}
static void
xfont_free(Fnt *font)
{
if (!font)
return;
if (font->pattern)
FcPatternDestroy(font->pattern);
XftFontClose(font->dpy, font->xfont);
free(font);
}
Fnt*
drw_fontset_create(Drw* drw, const char *fonts[], size_t fontcount)
{
Fnt *cur, *ret = NULL;
size_t i;
if (!drw || !fonts)
return NULL;
for (i = 1; i <= fontcount; i++) {
if ((cur = xfont_create(drw, fonts[fontcount - i], NULL))) {
cur->next = ret;
ret = cur;
}
}
return (drw->fonts = ret);
}
void
drw_fontset_free(Fnt *font)
{
if (font) {
drw_fontset_free(font->next);
xfont_free(font);
}
}
void
#if ALPHA_PATCH
drw_clr_create(Drw *drw, Clr *dest, const char *clrname, unsigned int alpha)
#else
drw_clr_create(Drw *drw, Clr *dest, const char *clrname)
#endif // ALPHA_PATCH
{
if (!drw || !dest || !clrname)
return;
#if ALPHA_PATCH
if (!XftColorAllocName(drw->dpy, drw->visual, drw->cmap,
clrname, dest))
die("error, cannot allocate color '%s'", clrname);
dest->pixel = (dest->pixel & 0x00ffffffU) | (alpha << 24);
#else
if (!XftColorAllocName(drw->dpy, DefaultVisual(drw->dpy, drw->screen),
DefaultColormap(drw->dpy, drw->screen),
clrname, dest))
die("error, cannot allocate color '%s'", clrname);
#endif // ALPHA_PATCH
}
/* Wrapper to create color schemes. The caller has to call free(3) on the
* returned color scheme when done using it. */
Clr *
#if ALPHA_PATCH
drw_scm_create(Drw *drw, const char *clrnames[], const unsigned int alphas[], size_t clrcount)
#else
drw_scm_create(Drw *drw, const char *clrnames[], size_t clrcount)
#endif // ALPHA_PATCH
{
size_t i;
Clr *ret;
/* need at least two colors for a scheme */
if (!drw || !clrnames || clrcount < 2 || !(ret = ecalloc(clrcount, sizeof(XftColor))))
return NULL;
for (i = 0; i < clrcount; i++)
#if ALPHA_PATCH
drw_clr_create(drw, &ret[i], clrnames[i], alphas[i]);
#else
drw_clr_create(drw, &ret[i], clrnames[i]);
#endif // ALPHA_PATCH
return ret;
}
void
drw_setfontset(Drw *drw, Fnt *set)
{
if (drw)
drw->fonts = set;
}
void
drw_setscheme(Drw *drw, Clr *scm)
{
if (drw)
drw->scheme = scm;
}
void
drw_rect(Drw *drw, int x, int y, unsigned int w, unsigned int h, int filled, int invert)
{
if (!drw || !drw->scheme)
return;
XSetForeground(drw->dpy, drw->gc, invert ? drw->scheme[ColBg].pixel : drw->scheme[ColFg].pixel);
if (filled)
XFillRectangle(drw->dpy, drw->drawable, drw->gc, x, y, w, h);
else
XDrawRectangle(drw->dpy, drw->drawable, drw->gc, x, y, w - 1, h - 1);
}
int
drw_text(Drw *drw, int x, int y, unsigned int w, unsigned int h, unsigned int lpad, const char *text, int invert)
{
char buf[1024];
int ty;
unsigned int ew;
XftDraw *d = NULL;
Fnt *usedfont, *curfont, *nextfont;
size_t i, len;
int utf8strlen, utf8charlen, render = x || y || w || h;
long utf8codepoint = 0;
const char *utf8str;
FcCharSet *fccharset;
FcPattern *fcpattern;
FcPattern *match;
XftResult result;
int charexists = 0;
if (!drw || (render && !drw->scheme) || !text || !drw->fonts)
return 0;
if (!render) {
w = ~w;
} else {
XSetForeground(drw->dpy, drw->gc, drw->scheme[invert ? ColFg : ColBg].pixel);
XFillRectangle(drw->dpy, drw->drawable, drw->gc, x, y, w, h);
#if ALPHA_PATCH
d = XftDrawCreate(drw->dpy, drw->drawable, drw->visual, drw->cmap);
#else
d = XftDrawCreate(drw->dpy, drw->drawable,
DefaultVisual(drw->dpy, drw->screen),
DefaultColormap(drw->dpy, drw->screen));
#endif // ALPHA_PATCH
x += lpad;
w -= lpad;
}
usedfont = drw->fonts;
while (1) {
utf8strlen = 0;
utf8str = text;
nextfont = NULL;
while (*text) {
utf8charlen = utf8decode(text, &utf8codepoint, UTF_SIZ);
for (curfont = drw->fonts; curfont; curfont = curfont->next) {
charexists = charexists || XftCharExists(drw->dpy, curfont->xfont, utf8codepoint);
if (charexists) {
if (curfont == usedfont) {
utf8strlen += utf8charlen;
text += utf8charlen;
} else {
nextfont = curfont;
}
break;
}
}
if (!charexists || nextfont)
break;
else
charexists = 0;
}
if (utf8strlen) {
drw_font_getexts(usedfont, utf8str, utf8strlen, &ew, NULL);
/* shorten text if necessary */
for (len = MIN(utf8strlen, sizeof(buf) - 1); len && ew > w; len--)
drw_font_getexts(usedfont, utf8str, len, &ew, NULL);
if (len) {
memcpy(buf, utf8str, len);
buf[len] = '\0';
if (len < utf8strlen)
for (i = len; i && i > len - 3; buf[--i] = '.')
; /* NOP */
if (render) {
ty = y + (h - usedfont->h) / 2 + usedfont->xfont->ascent;
XftDrawStringUtf8(d, &drw->scheme[invert ? ColBg : ColFg],
usedfont->xfont, x, ty, (XftChar8 *)buf, len);
}
x += ew;
w -= ew;
}
}
if (!*text) {
break;
} else if (nextfont) {
charexists = 0;
usedfont = nextfont;
} else {
/* Regardless of whether or not a fallback font is found, the
* character must be drawn. */
charexists = 1;
fccharset = FcCharSetCreate();
FcCharSetAddChar(fccharset, utf8codepoint);
if (!drw->fonts->pattern) {
/* Refer to the comment in xfont_create for more information. */
die("the first font in the cache must be loaded from a font string.");
}
fcpattern = FcPatternDuplicate(drw->fonts->pattern);
FcPatternAddCharSet(fcpattern, FC_CHARSET, fccharset);
FcPatternAddBool(fcpattern, FC_SCALABLE, FcTrue);
FcPatternAddBool(fcpattern, FC_COLOR, FcFalse);
FcConfigSubstitute(NULL, fcpattern, FcMatchPattern);
FcDefaultSubstitute(fcpattern);
match = XftFontMatch(drw->dpy, drw->screen, fcpattern, &result);
FcCharSetDestroy(fccharset);
FcPatternDestroy(fcpattern);
if (match) {
usedfont = xfont_create(drw, NULL, match);
if (usedfont && XftCharExists(drw->dpy, usedfont->xfont, utf8codepoint)) {
for (curfont = drw->fonts; curfont->next; curfont = curfont->next)
; /* NOP */
curfont->next = usedfont;
} else {
xfont_free(usedfont);
usedfont = drw->fonts;
}
}
}
}
if (d)
XftDrawDestroy(d);
return x + (render ? w : 0);
}
void
drw_map(Drw *drw, Window win, int x, int y, unsigned int w, unsigned int h)
{
if (!drw)
return;
XCopyArea(drw->dpy, drw->drawable, win, drw->gc, x, y, w, h, x, y);
XSync(drw->dpy, False);
}
unsigned int
drw_fontset_getwidth(Drw *drw, const char *text)
{
if (!drw || !drw->fonts || !text)
return 0;
return drw_text(drw, 0, 0, 0, 0, 0, text, 0);
}
void
drw_font_getexts(Fnt *font, const char *text, unsigned int len, unsigned int *w, unsigned int *h)
{
XGlyphInfo ext;
if (!font || !text)
return;
XftTextExtentsUtf8(font->dpy, font->xfont, (XftChar8 *)text, len, &ext);
if (w)
*w = ext.xOff;
if (h)
*h = font->h;
}
Cur *
drw_cur_create(Drw *drw, int shape)
{
Cur *cur;
if (!drw || !(cur = ecalloc(1, sizeof(Cur))))
return NULL;
cur->cursor = XCreateFontCursor(drw->dpy, shape);
return cur;
}
void
drw_cur_free(Drw *drw, Cur *cursor)
{
if (!cursor)
return;
XFreeCursor(drw->dpy, cursor->cursor);
free(cursor);
}

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/* See LICENSE file for copyright and license details. */
typedef struct {
Cursor cursor;
} Cur;
typedef struct Fnt {
Display *dpy;
unsigned int h;
XftFont *xfont;
FcPattern *pattern;
struct Fnt *next;
} Fnt;
enum { ColFg, ColBg, ColBorder }; /* Clr scheme index */
typedef XftColor Clr;
typedef struct {
unsigned int w, h;
Display *dpy;
int screen;
Window root;
#if ALPHA_PATCH
Visual *visual;
unsigned int depth;
Colormap cmap;
#endif // ALPHA_PATCH
Drawable drawable;
GC gc;
Clr *scheme;
Fnt *fonts;
} Drw;
/* Drawable abstraction */
#if ALPHA_PATCH
Drw *drw_create(Display *dpy, int screen, Window win, unsigned int w, unsigned int h, Visual *visual, unsigned int depth, Colormap cmap);
#else
Drw *drw_create(Display *dpy, int screen, Window win, unsigned int w, unsigned int h);
#endif // ALPHA_PATCH
void drw_resize(Drw *drw, unsigned int w, unsigned int h);
void drw_free(Drw *drw);
/* Fnt abstraction */
Fnt *drw_fontset_create(Drw* drw, const char *fonts[], size_t fontcount);
void drw_fontset_free(Fnt* set);
unsigned int drw_fontset_getwidth(Drw *drw, const char *text);
void drw_font_getexts(Fnt *font, const char *text, unsigned int len, unsigned int *w, unsigned int *h);
/* Colorscheme abstraction */
#if ALPHA_PATCH
void drw_clr_create(Drw *drw, Clr *dest, const char *clrname, unsigned int alpha);
Clr *drw_scm_create(Drw *drw, const char *clrnames[], const unsigned int alphas[], size_t clrcount);
#else
void drw_clr_create(Drw *drw, Clr *dest, const char *clrname);
Clr *drw_scm_create(Drw *drw, const char *clrnames[], size_t clrcount);
#endif // ALPHA_PATCH
/* Cursor abstraction */
Cur *drw_cur_create(Drw *drw, int shape);
void drw_cur_free(Drw *drw, Cur *cursor);
/* Drawing context manipulation */
void drw_setfontset(Drw *drw, Fnt *set);
void drw_setscheme(Drw *drw, Clr *scm);
/* Drawing functions */
void drw_rect(Drw *drw, int x, int y, unsigned int w, unsigned int h, int filled, int invert);
int drw_text(Drw *drw, int x, int y, unsigned int w, unsigned int h, unsigned int lpad, const char *text, int invert);
/* Map functions */
void drw_map(Drw *drw, Window win, int x, int y, unsigned int w, unsigned int h);

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.TH DWM 1 dwm\-VERSION
.SH NAME
dwm \- dynamic window manager
.SH SYNOPSIS
.B dwm
.RB [ \-v ]
.SH DESCRIPTION
dwm is a dynamic window manager for X. It manages windows in tiled, monocle
and floating layouts. Either layout can be applied dynamically, optimising the
environment for the application in use and the task performed.
.P
In tiled layouts windows are managed in a master and stacking area. The master
area on the left contains one window by default, and the stacking area on the
right contains all other windows. The number of master area windows can be
adjusted from zero to an arbitrary number. In monocle layout all windows are
maximised to the screen size. In floating layout windows can be resized and
moved freely. Dialog windows are always managed floating, regardless of the
layout applied.
.P
Windows are grouped by tags. Each window can be tagged with one or multiple
tags. Selecting certain tags displays all windows with these tags.
.P
Each screen contains a small status bar which displays all available tags, the
layout, the title of the focused window, and the text read from the root window
name property, if the screen is focused. A floating window is indicated with an
empty square and a maximised floating window is indicated with a filled square
before the windows title. The selected tags are indicated with a different
color. The tags of the focused window are indicated with a filled square in the
top left corner. The tags which are applied to one or more windows are
indicated with an empty square in the top left corner.
.P
dwm draws a small border around windows to indicate the focus state.
.SH OPTIONS
.TP
.B \-v
prints version information to standard output, then exits.
.SH USAGE
.SS Status bar
.TP
.B X root window name
is read and displayed in the status text area. It can be set with the
.BR xsetroot (1)
command.
.TP
.B Button1
click on a tag label to display all windows with that tag, click on the layout
label toggles between tiled and floating layout.
.TP
.B Button3
click on a tag label adds/removes all windows with that tag to/from the view.
.TP
.B Mod1\-Button1
click on a tag label applies that tag to the focused window.
.TP
.B Mod1\-Button3
click on a tag label adds/removes that tag to/from the focused window.
.SS Keyboard commands
.TP
.B Mod1\-Shift\-Return
Start
.BR st(1).
.TP
.B Mod1\-p
Spawn
.BR dmenu(1)
for launching other programs.
.TP
.B Mod1\-,
Focus previous screen, if any.
.TP
.B Mod1\-.
Focus next screen, if any.
.TP
.B Mod1\-Shift\-,
Send focused window to previous screen, if any.
.TP
.B Mod1\-Shift\-.
Send focused window to next screen, if any.
.TP
.B Mod1\-b
Toggles bar on and off.
.TP
.B Mod1\-t
Sets tiled layout.
.TP
.B Mod1\-f
Sets floating layout.
.TP
.B Mod1\-m
Sets monocle layout.
.TP
.B Mod1\-space
Toggles between current and previous layout.
.TP
.B Mod1\-j
Focus next window.
.TP
.B Mod1\-k
Focus previous window.
.TP
.B Mod1\-i
Increase number of windows in master area.
.TP
.B Mod1\-d
Decrease number of windows in master area.
.TP
.B Mod1\-l
Increase master area size.
.TP
.B Mod1\-h
Decrease master area size.
.TP
.B Mod1\-Return
Zooms/cycles focused window to/from master area (tiled layouts only).
.TP
.B Mod1\-Shift\-c
Close focused window.
.TP
.B Mod1\-Shift\-space
Toggle focused window between tiled and floating state.
.TP
.B Mod1\-Tab
Toggles to the previously selected tags.
.TP
.B Mod1\-Shift\-[1..n]
Apply nth tag to focused window.
.TP
.B Mod1\-Shift\-0
Apply all tags to focused window.
.TP
.B Mod1\-Control\-Shift\-[1..n]
Add/remove nth tag to/from focused window.
.TP
.B Mod1\-[1..n]
View all windows with nth tag.
.TP
.B Mod1\-0
View all windows with any tag.
.TP
.B Mod1\-Control\-[1..n]
Add/remove all windows with nth tag to/from the view.
.TP
.B Mod1\-Shift\-q
Quit dwm.
.SS Mouse commands
.TP
.B Mod1\-Button1
Move focused window while dragging. Tiled windows will be toggled to the floating state.
.TP
.B Mod1\-Button2
Toggles focused window between floating and tiled state.
.TP
.B Mod1\-Button3
Resize focused window while dragging. Tiled windows will be toggled to the floating state.
.SH CUSTOMIZATION
dwm is customized by creating a custom config.h and (re)compiling the source
code. This keeps it fast, secure and simple.
.SH SEE ALSO
.BR dmenu (1),
.BR st (1)
.SH ISSUES
Java applications which use the XToolkit/XAWT backend may draw grey windows
only. The XToolkit/XAWT backend breaks ICCCM-compliance in recent JDK 1.5 and early
JDK 1.6 versions, because it assumes a reparenting window manager. Possible workarounds
are using JDK 1.4 (which doesn't contain the XToolkit/XAWT backend) or setting the
environment variable
.BR AWT_TOOLKIT=MToolkit
(to use the older Motif backend instead) or running
.B xprop -root -f _NET_WM_NAME 32a -set _NET_WM_NAME LG3D
or
.B wmname LG3D
(to pretend that a non-reparenting window manager is running that the
XToolkit/XAWT backend can recognize) or when using OpenJDK setting the environment variable
.BR _JAVA_AWT_WM_NONREPARENTING=1 .
.SH BUGS
Send all bug reports with a patch to hackers@suckless.org.

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/* 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.
*
* 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 linked client
* list on each monitor, the focus history is remembered through a stack list
* on each monitor. Each client contains a bit array to indicate the tags of a
* client.
*
* Keys and tagging rules are organized as arrays and defined in config.h.
*
* To understand everything else, start reading main().
*/
#include <errno.h>
#include <locale.h>
#include <signal.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <X11/cursorfont.h>
#include <X11/keysym.h>
#include <X11/Xatom.h>
#include <X11/Xlib.h>
#include <X11/Xproto.h>
#include <X11/Xutil.h>
#ifdef XINERAMA
#include <X11/extensions/Xinerama.h>
#endif /* XINERAMA */
#include <X11/Xft/Xft.h>
/* patch options */
#define ALPHA_PATCH 0
#include "drw.h"
#include "util.h"
/* macros */
#define BUTTONMASK (ButtonPressMask|ButtonReleaseMask)
#define CLEANMASK(mask) (mask & ~(numlockmask|LockMask) & (ShiftMask|ControlMask|Mod1Mask|Mod2Mask|Mod3Mask|Mod4Mask|Mod5Mask))
#define INTERSECT(x,y,w,h,m) (MAX(0, MIN((x)+(w),(m)->wx+(m)->ww) - MAX((x),(m)->wx)) \
* MAX(0, MIN((y)+(h),(m)->wy+(m)->wh) - MAX((y),(m)->wy)))
#define ISVISIBLE(C) ((C->tags & C->mon->tagset[C->mon->seltags]))
#define LENGTH(X) (sizeof X / sizeof X[0])
#define MOUSEMASK (BUTTONMASK|PointerMotionMask)
#define WIDTH(X) ((X)->w + 2 * (X)->bw)
#define HEIGHT(X) ((X)->h + 2 * (X)->bw)
#define TAGMASK ((1 << LENGTH(tags)) - 1)
#define TEXTW(X) (drw_fontset_getwidth(drw, (X)) + lrpad)
#if ALPHA_PATCH
#define OPAQUE 0xffU
#endif // ALPHA_PATCH
/* enums */
enum { CurNormal, CurResize, CurMove, CurLast }; /* cursor */
enum { SchemeNorm, SchemeSel }; /* color schemes */
enum { NetSupported, NetWMName, NetWMState, NetWMCheck,
NetWMFullscreen, NetActiveWindow, NetWMWindowType,
NetWMWindowTypeDialog, NetClientList, NetLast }; /* EWMH atoms */
enum { WMProtocols, WMDelete, WMState, WMTakeFocus, WMLast }; /* default atoms */
enum { ClkTagBar, ClkLtSymbol, ClkStatusText, ClkWinTitle,
ClkClientWin, ClkRootWin, ClkLast }; /* clicks */
typedef union {
int i;
unsigned int ui;
float f;
const void *v;
} Arg;
typedef struct {
unsigned int click;
unsigned int mask;
unsigned int button;
void (*func)(const Arg *arg);
const Arg arg;
} Button;
typedef struct Monitor Monitor;
typedef struct Client Client;
struct Client {
char name[256];
float mina, maxa;
int x, y, w, h;
int oldx, oldy, oldw, oldh;
int basew, baseh, incw, inch, maxw, maxh, minw, minh;
int bw, oldbw;
unsigned int tags;
int isfixed, isfloating, isurgent, neverfocus, oldstate, isfullscreen;
Client *next;
Client *snext;
Monitor *mon;
Window win;
};
typedef struct {
unsigned int mod;
KeySym keysym;
void (*func)(const Arg *);
const Arg arg;
} Key;
typedef struct {
const char *symbol;
void (*arrange)(Monitor *);
} Layout;
struct Monitor {
char ltsymbol[16];
float mfact;
int nmaster;
int num;
int by; /* bar geometry */
int mx, my, mw, mh; /* screen size */
int wx, wy, ww, wh; /* window area */
unsigned int seltags;
unsigned int sellt;
unsigned int tagset[2];
int showbar;
int topbar;
Client *clients;
Client *sel;
Client *stack;
Monitor *next;
Window barwin;
const Layout *lt[2];
};
typedef struct {
const char *class;
const char *instance;
const char *title;
unsigned int tags;
int isfloating;
int monitor;
} Rule;
/* function declarations */
static void applyrules(Client *c);
static int applysizehints(Client *c, int *x, int *y, int *w, int *h, int interact);
static void arrange(Monitor *m);
static void arrangemon(Monitor *m);
static void attach(Client *c);
static void attachstack(Client *c);
static void buttonpress(XEvent *e);
static void checkotherwm(void);
static void cleanup(void);
static void cleanupmon(Monitor *mon);
static void clientmessage(XEvent *e);
static void configure(Client *c);
static void configurenotify(XEvent *e);
static void configurerequest(XEvent *e);
static Monitor *createmon(void);
static void destroynotify(XEvent *e);
static void detach(Client *c);
static void detachstack(Client *c);
static Monitor *dirtomon(int dir);
static void drawbar(Monitor *m);
static void drawbars(void);
static void enternotify(XEvent *e);
static void expose(XEvent *e);
static void focus(Client *c);
static void focusin(XEvent *e);
static void focusmon(const Arg *arg);
static void focusstack(const Arg *arg);
static int getrootptr(int *x, int *y);
static long getstate(Window w);
static int gettextprop(Window w, Atom atom, char *text, unsigned int size);
static void grabbuttons(Client *c, int focused);
static void grabkeys(void);
static void incnmaster(const Arg *arg);
static void keypress(XEvent *e);
static void killclient(const Arg *arg);
static void manage(Window w, XWindowAttributes *wa);
static void mappingnotify(XEvent *e);
static void maprequest(XEvent *e);
static void monocle(Monitor *m);
static void motionnotify(XEvent *e);
static void movemouse(const Arg *arg);
static Client *nexttiled(Client *c);
static void pop(Client *);
static void propertynotify(XEvent *e);
static void quit(const Arg *arg);
static Monitor *recttomon(int x, int y, int w, int h);
static void resize(Client *c, int x, int y, int w, int h, int interact);
static void resizeclient(Client *c, int x, int y, int w, int h);
static void resizemouse(const Arg *arg);
static void restack(Monitor *m);
static void run(void);
static void scan(void);
static int sendevent(Client *c, Atom proto);
static void sendmon(Client *c, Monitor *m);
static void setclientstate(Client *c, long state);
static void setfocus(Client *c);
static void setfullscreen(Client *c, int fullscreen);
static void setlayout(const Arg *arg);
static void setmfact(const Arg *arg);
static void setup(void);
static void seturgent(Client *c, int urg);
static void showhide(Client *c);
static void sigchld(int unused);
static void spawn(const Arg *arg);
static void tag(const Arg *arg);
static void tagmon(const Arg *arg);
static void tile(Monitor *);
static void togglebar(const Arg *arg);
static void togglefloating(const Arg *arg);
static void toggletag(const Arg *arg);
static void toggleview(const Arg *arg);
static void unfocus(Client *c, int setfocus);
static void unmanage(Client *c, int destroyed);
static void unmapnotify(XEvent *e);
static void updatebarpos(Monitor *m);
static void updatebars(void);
static void updateclientlist(void);
static int updategeom(void);
static void updatenumlockmask(void);
static void updatesizehints(Client *c);
static void updatestatus(void);
static void updatetitle(Client *c);
static void updatewindowtype(Client *c);
static void updatewmhints(Client *c);
static void view(const Arg *arg);
static Client *wintoclient(Window w);
static Monitor *wintomon(Window w);
static int xerror(Display *dpy, XErrorEvent *ee);
static int xerrordummy(Display *dpy, XErrorEvent *ee);
static int xerrorstart(Display *dpy, XErrorEvent *ee);
#if ALPHA_PATCH
static void xinitvisual();
#endif // ALPHA_PATCH
static void zoom(const Arg *arg);
/* variables */
static const char broken[] = "broken";
static char stext[256];
static int screen;
static int sw, sh; /* X display screen geometry width, height */
static int bh, blw = 0; /* bar geometry */
static int lrpad; /* sum of left and right padding for text */
static int (*xerrorxlib)(Display *, XErrorEvent *);
static unsigned int numlockmask = 0;
static void (*handler[LASTEvent]) (XEvent *) = {
[ButtonPress] = buttonpress,
[ClientMessage] = clientmessage,
[ConfigureRequest] = configurerequest,
[ConfigureNotify] = configurenotify,
[DestroyNotify] = destroynotify,
[EnterNotify] = enternotify,
[Expose] = expose,
[FocusIn] = focusin,
[KeyPress] = keypress,
[MappingNotify] = mappingnotify,
[MapRequest] = maprequest,
[MotionNotify] = motionnotify,
[PropertyNotify] = propertynotify,
[UnmapNotify] = unmapnotify
};
static Atom wmatom[WMLast], netatom[NetLast];
static int running = 1;
static Cur *cursor[CurLast];
static Clr **scheme;
static Display *dpy;
static Drw *drw;
static Monitor *mons, *selmon;
static Window root, wmcheckwin;
#if ALPHA_PATCH
static int useargb = 0;
static Visual *visual;
static int depth;
static Colormap cmap;
#endif // ALPHA_PATCH
/* configuration, allows nested code to access above variables */
#include "config.h"
/* compile-time check if all tags fit into an unsigned int bit array. */
struct NumTags { char limitexceeded[LENGTH(tags) > 31 ? -1 : 1]; };
/* function implementations */
void
applyrules(Client *c)
{
const char *class, *instance;
unsigned int i;
const Rule *r;
Monitor *m;
XClassHint ch = { NULL, NULL };
/* rule matching */
c->isfloating = 0;
c->tags = 0;
XGetClassHint(dpy, c->win, &ch);
class = ch.res_class ? ch.res_class : broken;
instance = ch.res_name ? ch.res_name : broken;
for (i = 0; i < LENGTH(rules); i++) {
r = &rules[i];
if ((!r->title || strstr(c->name, r->title))
&& (!r->class || strstr(class, r->class))
&& (!r->instance || strstr(instance, r->instance)))
{
c->isfloating = r->isfloating;
c->tags |= r->tags;
for (m = mons; m && m->num != r->monitor; m = m->next);
if (m)
c->mon = m;
}
}
if (ch.res_class)
XFree(ch.res_class);
if (ch.res_name)
XFree(ch.res_name);
c->tags = c->tags & TAGMASK ? c->tags & TAGMASK : c->mon->tagset[c->mon->seltags];
}
int
applysizehints(Client *c, int *x, int *y, int *w, int *h, int interact)
{
int baseismin;
Monitor *m = c->mon;
/* set minimum possible */
*w = MAX(1, *w);
*h = MAX(1, *h);
if (interact) {
if (*x > sw)
*x = sw - WIDTH(c);
if (*y > sh)
*y = sh - HEIGHT(c);
if (*x + *w + 2 * c->bw < 0)
*x = 0;
if (*y + *h + 2 * c->bw < 0)
*y = 0;
} else {
if (*x >= m->wx + m->ww)
*x = m->wx + m->ww - WIDTH(c);
if (*y >= m->wy + m->wh)
*y = m->wy + m->wh - HEIGHT(c);
if (*x + *w + 2 * c->bw <= m->wx)
*x = m->wx;
if (*y + *h + 2 * c->bw <= m->wy)
*y = m->wy;
}
if (*h < bh)
*h = bh;
if (*w < bh)
*w = bh;
if (resizehints || c->isfloating || !c->mon->lt[c->mon->sellt]->arrange) {
/* see last two sentences in ICCCM 4.1.2.3 */
baseismin = c->basew == c->minw && c->baseh == c->minh;
if (!baseismin) { /* temporarily remove base dimensions */
*w -= c->basew;
*h -= c->baseh;
}
/* adjust for aspect limits */
if (c->mina > 0 && c->maxa > 0) {
if (c->maxa < (float)*w / *h)
*w = *h * c->maxa + 0.5;
else if (c->mina < (float)*h / *w)
*h = *w * c->mina + 0.5;
}
if (baseismin) { /* increment calculation requires this */
*w -= c->basew;
*h -= c->baseh;
}
/* adjust for increment value */
if (c->incw)
*w -= *w % c->incw;
if (c->inch)
*h -= *h % c->inch;
/* restore base dimensions */
*w = MAX(*w + c->basew, c->minw);
*h = MAX(*h + c->baseh, c->minh);
if (c->maxw)
*w = MIN(*w, c->maxw);
if (c->maxh)
*h = MIN(*h, c->maxh);
}
return *x != c->x || *y != c->y || *w != c->w || *h != c->h;
}
void
arrange(Monitor *m)
{
if (m)
showhide(m->stack);
else for (m = mons; m; m = m->next)
showhide(m->stack);
if (m) {
arrangemon(m);
restack(m);
} else for (m = mons; m; m = m->next)
arrangemon(m);
}
void
arrangemon(Monitor *m)
{
strncpy(m->ltsymbol, m->lt[m->sellt]->symbol, sizeof m->ltsymbol);
if (m->lt[m->sellt]->arrange)
m->lt[m->sellt]->arrange(m);
}
void
attach(Client *c)
{
c->next = c->mon->clients;
c->mon->clients = c;
}
void
attachstack(Client *c)
{
c->snext = c->mon->stack;
c->mon->stack = c;
}
void
buttonpress(XEvent *e)
{
unsigned int i, x, click;
Arg arg = {0};
Client *c;
Monitor *m;
XButtonPressedEvent *ev = &e->xbutton;
click = ClkRootWin;
/* focus monitor if necessary */
if ((m = wintomon(ev->window)) && m != selmon) {
unfocus(selmon->sel, 1);
selmon = m;
focus(NULL);
}
if (ev->window == selmon->barwin) {
i = x = 0;
do
x += TEXTW(tags[i]);
while (ev->x >= x && ++i < LENGTH(tags));
if (i < LENGTH(tags)) {
click = ClkTagBar;
arg.ui = 1 << i;
} else if (ev->x < x + blw)
click = ClkLtSymbol;
else if (ev->x > selmon->ww - TEXTW(stext))
click = ClkStatusText;
else
click = ClkWinTitle;
} else if ((c = wintoclient(ev->window))) {
focus(c);
restack(selmon);
XAllowEvents(dpy, ReplayPointer, CurrentTime);
click = ClkClientWin;
}
for (i = 0; i < LENGTH(buttons); i++)
if (click == buttons[i].click && buttons[i].func && buttons[i].button == ev->button
&& CLEANMASK(buttons[i].mask) == CLEANMASK(ev->state))
buttons[i].func(click == ClkTagBar && buttons[i].arg.i == 0 ? &arg : &buttons[i].arg);
}
void
checkotherwm(void)
{
xerrorxlib = XSetErrorHandler(xerrorstart);
/* this causes an error if some other window manager is running */
XSelectInput(dpy, DefaultRootWindow(dpy), SubstructureRedirectMask);
XSync(dpy, False);
XSetErrorHandler(xerror);
XSync(dpy, False);
}
void
cleanup(void)
{
Arg a = {.ui = ~0};
Layout foo = { "", NULL };
Monitor *m;
size_t i;
view(&a);
selmon->lt[selmon->sellt] = &foo;
for (m = mons; m; m = m->next)
while (m->stack)
unmanage(m->stack, 0);
XUngrabKey(dpy, AnyKey, AnyModifier, root);
while (mons)
cleanupmon(mons);
for (i = 0; i < CurLast; i++)
drw_cur_free(drw, cursor[i]);
for (i = 0; i < LENGTH(colors); i++)
free(scheme[i]);
XDestroyWindow(dpy, wmcheckwin);
drw_free(drw);
XSync(dpy, False);
XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
XDeleteProperty(dpy, root, netatom[NetActiveWindow]);
}
void
cleanupmon(Monitor *mon)
{
Monitor *m;
if (mon == mons)
mons = mons->next;
else {
for (m = mons; m && m->next != mon; m = m->next);
m->next = mon->next;
}
XUnmapWindow(dpy, mon->barwin);
XDestroyWindow(dpy, mon->barwin);
free(mon);
}
void
clientmessage(XEvent *e)
{
XClientMessageEvent *cme = &e->xclient;
Client *c = wintoclient(cme->window);
if (!c)
return;
if (cme->message_type == netatom[NetWMState]) {
if (cme->data.l[1] == netatom[NetWMFullscreen]
|| cme->data.l[2] == netatom[NetWMFullscreen])
setfullscreen(c, (cme->data.l[0] == 1 /* _NET_WM_STATE_ADD */
|| (cme->data.l[0] == 2 /* _NET_WM_STATE_TOGGLE */ && !c->isfullscreen)));
} else if (cme->message_type == netatom[NetActiveWindow]) {
if (c != selmon->sel && !c->isurgent)
seturgent(c, 1);
}
}
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->bw;
ce.above = None;
ce.override_redirect = False;
XSendEvent(dpy, c->win, False, StructureNotifyMask, (XEvent *)&ce);
}
void
configurenotify(XEvent *e)
{
Monitor *m;
Client *c;
XConfigureEvent *ev = &e->xconfigure;
int dirty;
/* TODO: updategeom handling sucks, needs to be simplified */
if (ev->window == root) {
dirty = (sw != ev->width || sh != ev->height);
sw = ev->width;
sh = ev->height;
if (updategeom() || dirty) {
drw_resize(drw, sw, bh);
updatebars();
for (m = mons; m; m = m->next) {
for (c = m->clients; c; c = c->next)
if (c->isfullscreen)
resizeclient(c, m->mx, m->my, m->mw, m->mh);
XMoveResizeWindow(dpy, m->barwin, m->wx, m->by, m->ww, bh);
}
focus(NULL);
arrange(NULL);
}
}
}
void
configurerequest(XEvent *e)
{
Client *c;
Monitor *m;
XConfigureRequestEvent *ev = &e->xconfigurerequest;
XWindowChanges wc;
if ((c = wintoclient(ev->window))) {
if (ev->value_mask & CWBorderWidth)
c->bw = ev->border_width;
else if (c->isfloating || !selmon->lt[selmon->sellt]->arrange) {
m = c->mon;
if (ev->value_mask & CWX) {
c->oldx = c->x;
c->x = m->mx + ev->x;
}
if (ev->value_mask & CWY) {
c->oldy = c->y;
c->y = m->my + ev->y;
}
if (ev->value_mask & CWWidth) {
c->oldw = c->w;
c->w = ev->width;
}
if (ev->value_mask & CWHeight) {
c->oldh = c->h;
c->h = ev->height;
}
if ((c->x + c->w) > m->mx + m->mw && c->isfloating)
c->x = m->mx + (m->mw / 2 - WIDTH(c) / 2); /* center in x direction */
if ((c->y + c->h) > m->my + m->mh && c->isfloating)
c->y = m->my + (m->mh / 2 - HEIGHT(c) / 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);
}
Monitor *
createmon(void)
{
Monitor *m;
m = ecalloc(1, sizeof(Monitor));
m->tagset[0] = m->tagset[1] = 1;
m->mfact = mfact;
m->nmaster = nmaster;
m->showbar = showbar;
m->topbar = topbar;
m->lt[0] = &layouts[0];
m->lt[1] = &layouts[1 % LENGTH(layouts)];
strncpy(m->ltsymbol, layouts[0].symbol, sizeof m->ltsymbol);
return m;
}
void
destroynotify(XEvent *e)
{
Client *c;
XDestroyWindowEvent *ev = &e->xdestroywindow;
if ((c = wintoclient(ev->window)))
unmanage(c, 1);
}
void
detach(Client *c)
{
Client **tc;
for (tc = &c->mon->clients; *tc && *tc != c; tc = &(*tc)->next);
*tc = c->next;
}
void
detachstack(Client *c)
{
Client **tc, *t;
for (tc = &c->mon->stack; *tc && *tc != c; tc = &(*tc)->snext);
*tc = c->snext;
if (c == c->mon->sel) {
for (t = c->mon->stack; t && !ISVISIBLE(t); t = t->snext);
c->mon->sel = t;
}
}
Monitor *
dirtomon(int dir)
{
Monitor *m = NULL;
if (dir > 0) {
if (!(m = selmon->next))
m = mons;
} else if (selmon == mons)
for (m = mons; m->next; m = m->next);
else
for (m = mons; m->next != selmon; m = m->next);
return m;
}
void
drawbar(Monitor *m)
{
int x, w, sw = 0;
int boxs = drw->fonts->h / 9;
int boxw = drw->fonts->h / 6 + 2;
unsigned int i, occ = 0, urg = 0;
Client *c;
/* draw status first so it can be overdrawn by tags later */
if (m == selmon) { /* status is only drawn on selected monitor */
drw_setscheme(drw, scheme[SchemeNorm]);
sw = TEXTW(stext) - lrpad + 2; /* 2px right padding */
drw_text(drw, m->ww - sw, 0, sw, bh, 0, stext, 0);
}
for (c = m->clients; c; c = c->next) {
occ |= c->tags;
if (c->isurgent)
urg |= c->tags;
}
x = 0;
for (i = 0; i < LENGTH(tags); i++) {
w = TEXTW(tags[i]);
drw_setscheme(drw, scheme[m->tagset[m->seltags] & 1 << i ? SchemeSel : SchemeNorm]);
drw_text(drw, x, 0, w, bh, lrpad / 2, tags[i], urg & 1 << i);
if (occ & 1 << i)
drw_rect(drw, x + boxs, boxs, boxw, boxw,
m == selmon && selmon->sel && selmon->sel->tags & 1 << i,
urg & 1 << i);
x += w;
}
w = blw = TEXTW(m->ltsymbol);
drw_setscheme(drw, scheme[SchemeNorm]);
x = drw_text(drw, x, 0, w, bh, lrpad / 2, m->ltsymbol, 0);
if ((w = m->ww - sw - x) > bh) {
if (m->sel) {
drw_setscheme(drw, scheme[m == selmon ? SchemeSel : SchemeNorm]);
drw_text(drw, x, 0, w, bh, lrpad / 2, m->sel->name, 0);
if (m->sel->isfloating)
drw_rect(drw, x + boxs, boxs, boxw, boxw, m->sel->isfixed, 0);
} else {
drw_setscheme(drw, scheme[SchemeNorm]);
drw_rect(drw, x, 0, w, bh, 1, 1);
}
}
drw_map(drw, m->barwin, 0, 0, m->ww, bh);
}
void
drawbars(void)
{
Monitor *m;
for (m = mons; m; m = m->next)
drawbar(m);
}
void
enternotify(XEvent *e)
{
Client *c;
Monitor *m;
XCrossingEvent *ev = &e->xcrossing;
if ((ev->mode != NotifyNormal || ev->detail == NotifyInferior) && ev->window != root)
return;
c = wintoclient(ev->window);
m = c ? c->mon : wintomon(ev->window);
if (m != selmon) {
unfocus(selmon->sel, 1);
selmon = m;
} else if (!c || c == selmon->sel)
return;
focus(c);
}
void
expose(XEvent *e)
{
Monitor *m;
XExposeEvent *ev = &e->xexpose;
if (ev->count == 0 && (m = wintomon(ev->window)))
drawbar(m);
}
void
focus(Client *c)
{
if (!c || !ISVISIBLE(c))
for (c = selmon->stack; c && !ISVISIBLE(c); c = c->snext);
if (selmon->sel && selmon->sel != c)
unfocus(selmon->sel, 0);
if (c) {
if (c->mon != selmon)
selmon = c->mon;
if (c->isurgent)
seturgent(c, 0);
detachstack(c);
attachstack(c);
grabbuttons(c, 1);
XSetWindowBorder(dpy, c->win, scheme[SchemeSel][ColBorder].pixel);
setfocus(c);
} else {
XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
XDeleteProperty(dpy, root, netatom[NetActiveWindow]);
}
selmon->sel = c;
drawbars();
}
/* there are some broken focus acquiring clients needing extra handling */
void
focusin(XEvent *e)
{
XFocusChangeEvent *ev = &e->xfocus;
if (selmon->sel && ev->window != selmon->sel->win)
setfocus(selmon->sel);
}
void
focusmon(const Arg *arg)
{
Monitor *m;
if (!mons->next)
return;
if ((m = dirtomon(arg->i)) == selmon)
return;
unfocus(selmon->sel, 0);
selmon = m;
focus(NULL);
}
void
focusstack(const Arg *arg)
{
Client *c = NULL, *i;
if (!selmon->sel)
return;
if (arg->i > 0) {
for (c = selmon->sel->next; c && !ISVISIBLE(c); c = c->next);
if (!c)
for (c = selmon->clients; c && !ISVISIBLE(c); c = c->next);
} else {
for (i = selmon->clients; i != selmon->sel; i = i->next)
if (ISVISIBLE(i))
c = i;
if (!c)
for (; i; i = i->next)
if (ISVISIBLE(i))
c = i;
}
if (c) {
focus(c);
restack(selmon);
}
}
Atom
getatomprop(Client *c, Atom prop)
{
int di;
unsigned long dl;
unsigned char *p = NULL;
Atom da, atom = None;
if (XGetWindowProperty(dpy, c->win, prop, 0L, sizeof atom, False, XA_ATOM,
&da, &di, &dl, &dl, &p) == Success && p) {
atom = *(Atom *)p;
XFree(p);
}
return atom;
}
int
getrootptr(int *x, int *y)
{
int di;
unsigned int dui;
Window dummy;
return XQueryPointer(dpy, root, &dummy, &dummy, x, y, &di, &di, &dui);
}
long
getstate(Window w)
{
int format;
long result = -1;
unsigned char *p = NULL;
unsigned long n, extra;
Atom real;
if (XGetWindowProperty(dpy, w, wmatom[WMState], 0L, 2L, False, wmatom[WMState],
&real, &format, &n, &extra, (unsigned char **)&p) != Success)
return -1;
if (n != 0)
result = *p;
XFree(p);
return result;
}
int
gettextprop(Window w, Atom atom, char *text, unsigned int size)
{
char **list = NULL;
int n;
XTextProperty name;
if (!text || size == 0)
return 0;
text[0] = '\0';
if (!XGetTextProperty(dpy, w, &name, atom) || !name.nitems)
return 0;
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 1;
}
void
grabbuttons(Client *c, int focused)
{
updatenumlockmask();
{
unsigned int i, j;
unsigned int modifiers[] = { 0, LockMask, numlockmask, numlockmask|LockMask };
XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
if (!focused)
XGrabButton(dpy, AnyButton, AnyModifier, c->win, False,
BUTTONMASK, GrabModeSync, GrabModeSync, None, None);
for (i = 0; i < LENGTH(buttons); i++)
if (buttons[i].click == ClkClientWin)
for (j = 0; j < LENGTH(modifiers); j++)
XGrabButton(dpy, buttons[i].button,
buttons[i].mask | modifiers[j],
c->win, False, BUTTONMASK,
GrabModeAsync, GrabModeSync, None, None);
}
}
void
grabkeys(void)
{
updatenumlockmask();
{
unsigned int i, j;
unsigned int modifiers[] = { 0, LockMask, numlockmask, numlockmask|LockMask };
KeyCode code;
XUngrabKey(dpy, AnyKey, AnyModifier, root);
for (i = 0; i < LENGTH(keys); i++)
if ((code = XKeysymToKeycode(dpy, keys[i].keysym)))
for (j = 0; j < LENGTH(modifiers); j++)
XGrabKey(dpy, code, keys[i].mod | modifiers[j], root,
True, GrabModeAsync, GrabModeAsync);
}
}
void
incnmaster(const Arg *arg)
{
selmon->nmaster = MAX(selmon->nmaster + arg->i, 0);
arrange(selmon);
}
#ifdef XINERAMA
static int
isuniquegeom(XineramaScreenInfo *unique, size_t n, XineramaScreenInfo *info)
{
while (n--)
if (unique[n].x_org == info->x_org && unique[n].y_org == info->y_org
&& unique[n].width == info->width && unique[n].height == info->height)
return 0;
return 1;
}
#endif /* XINERAMA */
void
keypress(XEvent *e)
{
unsigned int i;
KeySym keysym;
XKeyEvent *ev;
ev = &e->xkey;
keysym = XKeycodeToKeysym(dpy, (KeyCode)ev->keycode, 0);
for (i = 0; i < LENGTH(keys); i++)
if (keysym == keys[i].keysym
&& CLEANMASK(keys[i].mod) == CLEANMASK(ev->state)
&& keys[i].func)
keys[i].func(&(keys[i].arg));
}
void
killclient(const Arg *arg)
{
if (!selmon->sel)
return;
if (!sendevent(selmon->sel, wmatom[WMDelete])) {
XGrabServer(dpy);
XSetErrorHandler(xerrordummy);
XSetCloseDownMode(dpy, DestroyAll);
XKillClient(dpy, selmon->sel->win);
XSync(dpy, False);
XSetErrorHandler(xerror);
XUngrabServer(dpy);
}
}
void
manage(Window w, XWindowAttributes *wa)
{
Client *c, *t = NULL;
Window trans = None;
XWindowChanges wc;
c = ecalloc(1, sizeof(Client));
c->win = w;
/* geometry */
c->x = c->oldx = wa->x;
c->y = c->oldy = wa->y;
c->w = c->oldw = wa->width;
c->h = c->oldh = wa->height;
c->oldbw = wa->border_width;
updatetitle(c);
if (XGetTransientForHint(dpy, w, &trans) && (t = wintoclient(trans))) {
c->mon = t->mon;
c->tags = t->tags;
} else {
c->mon = selmon;
applyrules(c);
}
if (c->x + WIDTH(c) > c->mon->mx + c->mon->mw)
c->x = c->mon->mx + c->mon->mw - WIDTH(c);
if (c->y + HEIGHT(c) > c->mon->my + c->mon->mh)
c->y = c->mon->my + c->mon->mh - HEIGHT(c);
c->x = MAX(c->x, c->mon->mx);
/* only fix client y-offset, if the client center might cover the bar */
c->y = MAX(c->y, ((c->mon->by == c->mon->my) && (c->x + (c->w / 2) >= c->mon->wx)
&& (c->x + (c->w / 2) < c->mon->wx + c->mon->ww)) ? bh : c->mon->my);
c->bw = borderpx;
wc.border_width = c->bw;
XConfigureWindow(dpy, w, CWBorderWidth, &wc);
XSetWindowBorder(dpy, w, scheme[SchemeNorm][ColBorder].pixel);
configure(c); /* propagates border_width, if size doesn't change */
updatewindowtype(c);
updatesizehints(c);
updatewmhints(c);
XSelectInput(dpy, w, EnterWindowMask|FocusChangeMask|PropertyChangeMask|StructureNotifyMask);
grabbuttons(c, 0);
if (!c->isfloating)
c->isfloating = c->oldstate = trans != None || c->isfixed;
if (c->isfloating)
XRaiseWindow(dpy, c->win);
attach(c);
attachstack(c);
XChangeProperty(dpy, root, netatom[NetClientList], XA_WINDOW, 32, PropModeAppend,
(unsigned char *) &(c->win), 1);
XMoveResizeWindow(dpy, c->win, c->x + 2 * sw, c->y, c->w, c->h); /* some windows require this */
setclientstate(c, NormalState);
if (c->mon == selmon)
unfocus(selmon->sel, 0);
c->mon->sel = c;
arrange(c->mon);
XMapWindow(dpy, c->win);
focus(NULL);
}
void
mappingnotify(XEvent *e)
{
XMappingEvent *ev = &e->xmapping;
XRefreshKeyboardMapping(ev);
if (ev->request == MappingKeyboard)
grabkeys();
}
void
maprequest(XEvent *e)
{
static XWindowAttributes wa;
XMapRequestEvent *ev = &e->xmaprequest;
if (!XGetWindowAttributes(dpy, ev->window, &wa))
return;
if (wa.override_redirect)
return;
if (!wintoclient(ev->window))
manage(ev->window, &wa);
}
void
monocle(Monitor *m)
{
unsigned int n = 0;
Client *c;
for (c = m->clients; c; c = c->next)
if (ISVISIBLE(c))
n++;
if (n > 0) /* override layout symbol */
snprintf(m->ltsymbol, sizeof m->ltsymbol, "[%d]", n);
for (c = nexttiled(m->clients); c; c = nexttiled(c->next))
resize(c, m->wx, m->wy, m->ww - 2 * c->bw, m->wh - 2 * c->bw, 0);
}
void
motionnotify(XEvent *e)
{
static Monitor *mon = NULL;
Monitor *m;
XMotionEvent *ev = &e->xmotion;
if (ev->window != root)
return;
if ((m = recttomon(ev->x_root, ev->y_root, 1, 1)) != mon && mon) {
unfocus(selmon->sel, 1);
selmon = m;
focus(NULL);
}
mon = m;
}
void
movemouse(const Arg *arg)
{
int x, y, ocx, ocy, nx, ny;
Client *c;
Monitor *m;
XEvent ev;
Time lasttime = 0;
if (!(c = selmon->sel))
return;
if (c->isfullscreen) /* no support moving fullscreen windows by mouse */
return;
restack(selmon);
ocx = c->x;
ocy = c->y;
if (XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
None, cursor[CurMove]->cursor, CurrentTime) != GrabSuccess)
return;
if (!getrootptr(&x, &y))
return;
do {
XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask, &ev);
switch(ev.type) {
case ConfigureRequest:
case Expose:
case MapRequest:
handler[ev.type](&ev);
break;
case MotionNotify:
if ((ev.xmotion.time - lasttime) <= (1000 / 60))
continue;
lasttime = ev.xmotion.time;
nx = ocx + (ev.xmotion.x - x);
ny = ocy + (ev.xmotion.y - y);
if (abs(selmon->wx - nx) < snap)
nx = selmon->wx;
else if (abs((selmon->wx + selmon->ww) - (nx + WIDTH(c))) < snap)
nx = selmon->wx + selmon->ww - WIDTH(c);
if (abs(selmon->wy - ny) < snap)
ny = selmon->wy;
else if (abs((selmon->wy + selmon->wh) - (ny + HEIGHT(c))) < snap)
ny = selmon->wy + selmon->wh - HEIGHT(c);
if (!c->isfloating && selmon->lt[selmon->sellt]->arrange
&& (abs(nx - c->x) > snap || abs(ny - c->y) > snap))
togglefloating(NULL);
if (!selmon->lt[selmon->sellt]->arrange || c->isfloating)
resize(c, nx, ny, c->w, c->h, 1);
break;
}
} while (ev.type != ButtonRelease);
XUngrabPointer(dpy, CurrentTime);
if ((m = recttomon(c->x, c->y, c->w, c->h)) != selmon) {
sendmon(c, m);
selmon = m;
focus(NULL);
}
}
Client *
nexttiled(Client *c)
{
for (; c && (c->isfloating || !ISVISIBLE(c)); c = c->next);
return c;
}
void
pop(Client *c)
{
detach(c);
attach(c);
focus(c);
arrange(c->mon);
}
void
propertynotify(XEvent *e)
{
Client *c;
Window trans;
XPropertyEvent *ev = &e->xproperty;
if ((ev->window == root) && (ev->atom == XA_WM_NAME))
updatestatus();
else if (ev->state == PropertyDelete)
return; /* ignore */
else if ((c = wintoclient(ev->window))) {
switch(ev->atom) {
default: break;
case XA_WM_TRANSIENT_FOR:
if (!c->isfloating && (XGetTransientForHint(dpy, c->win, &trans)) &&
(c->isfloating = (wintoclient(trans)) != NULL))
arrange(c->mon);
break;
case XA_WM_NORMAL_HINTS:
updatesizehints(c);
break;
case XA_WM_HINTS:
updatewmhints(c);
drawbars();
break;
}
if (ev->atom == XA_WM_NAME || ev->atom == netatom[NetWMName]) {
updatetitle(c);
if (c == c->mon->sel)
drawbar(c->mon);
}
if (ev->atom == netatom[NetWMWindowType])
updatewindowtype(c);
}
}
void
quit(const Arg *arg)
{
running = 0;
}
Monitor *
recttomon(int x, int y, int w, int h)
{
Monitor *m, *r = selmon;
int a, area = 0;
for (m = mons; m; m = m->next)
if ((a = INTERSECT(x, y, w, h, m)) > area) {
area = a;
r = m;
}
return r;
}
void
resize(Client *c, int x, int y, int w, int h, int interact)
{
if (applysizehints(c, &x, &y, &w, &h, interact))
resizeclient(c, x, y, w, h);
}
void
resizeclient(Client *c, int x, int y, int w, int h)
{
XWindowChanges wc;
c->oldx = c->x; c->x = wc.x = x;
c->oldy = c->y; c->y = wc.y = y;
c->oldw = c->w; c->w = wc.width = w;
c->oldh = c->h; c->h = wc.height = h;
wc.border_width = c->bw;
XConfigureWindow(dpy, c->win, CWX|CWY|CWWidth|CWHeight|CWBorderWidth, &wc);
configure(c);
XSync(dpy, False);
}
void
resizemouse(const Arg *arg)
{
int ocx, ocy, nw, nh;
Client *c;
Monitor *m;
XEvent ev;
Time lasttime = 0;
if (!(c = selmon->sel))
return;
if (c->isfullscreen) /* no support resizing fullscreen windows by mouse */
return;
restack(selmon);
ocx = c->x;
ocy = c->y;
if (XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
None, cursor[CurResize]->cursor, CurrentTime) != GrabSuccess)
return;
XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1, c->h + c->bw - 1);
do {
XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask, &ev);
switch(ev.type) {
case ConfigureRequest:
case Expose:
case MapRequest:
handler[ev.type](&ev);
break;
case MotionNotify:
if ((ev.xmotion.time - lasttime) <= (1000 / 60))
continue;
lasttime = ev.xmotion.time;
nw = MAX(ev.xmotion.x - ocx - 2 * c->bw + 1, 1);
nh = MAX(ev.xmotion.y - ocy - 2 * c->bw + 1, 1);
if (c->mon->wx + nw >= selmon->wx && c->mon->wx + nw <= selmon->wx + selmon->ww
&& c->mon->wy + nh >= selmon->wy && c->mon->wy + nh <= selmon->wy + selmon->wh)
{
if (!c->isfloating && selmon->lt[selmon->sellt]->arrange
&& (abs(nw - c->w) > snap || abs(nh - c->h) > snap))
togglefloating(NULL);
}
if (!selmon->lt[selmon->sellt]->arrange || c->isfloating)
resize(c, c->x, c->y, nw, nh, 1);
break;
}
} while (ev.type != ButtonRelease);
XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1, c->h + c->bw - 1);
XUngrabPointer(dpy, CurrentTime);
while (XCheckMaskEvent(dpy, EnterWindowMask, &ev));
if ((m = recttomon(c->x, c->y, c->w, c->h)) != selmon) {
sendmon(c, m);
selmon = m;
focus(NULL);
}
}
void
restack(Monitor *m)
{
Client *c;
XEvent ev;
XWindowChanges wc;
drawbar(m);
if (!m->sel)
return;
if (m->sel->isfloating || !m->lt[m->sellt]->arrange)
XRaiseWindow(dpy, m->sel->win);
if (m->lt[m->sellt]->arrange) {
wc.stack_mode = Below;
wc.sibling = m->barwin;
for (c = m->stack; c; c = c->snext)
if (!c->isfloating && ISVISIBLE(c)) {
XConfigureWindow(dpy, c->win, CWSibling|CWStackMode, &wc);
wc.sibling = c->win;
}
}
XSync(dpy, False);
while (XCheckMaskEvent(dpy, EnterWindowMask, &ev));
}
void
run(void)
{
XEvent ev;
/* main event loop */
XSync(dpy, False);
while (running && !XNextEvent(dpy, &ev))
if (handler[ev.type])
handler[ev.type](&ev); /* call handler */
}
void
scan(void)
{
unsigned int i, num;
Window d1, d2, *wins = NULL;
XWindowAttributes wa;
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);
}
}
void
sendmon(Client *c, Monitor *m)
{
if (c->mon == m)
return;
unfocus(c, 1);
detach(c);
detachstack(c);
c->mon = m;
c->tags = m->tagset[m->seltags]; /* assign tags of target monitor */
attach(c);
attachstack(c);
focus(NULL);
arrange(NULL);
}
void
setclientstate(Client *c, long state)
{
long data[] = { state, None };
XChangeProperty(dpy, c->win, wmatom[WMState], wmatom[WMState], 32,
PropModeReplace, (unsigned char *)data, 2);
}
int
sendevent(Client *c, Atom proto)
{
int n;
Atom *protocols;
int exists = 0;
XEvent ev;
if (XGetWMProtocols(dpy, c->win, &protocols, &n)) {
while (!exists && n--)
exists = protocols[n] == proto;
XFree(protocols);
}
if (exists) {
ev.type = ClientMessage;
ev.xclient.window = c->win;
ev.xclient.message_type = wmatom[WMProtocols];
ev.xclient.format = 32;
ev.xclient.data.l[0] = proto;
ev.xclient.data.l[1] = CurrentTime;
XSendEvent(dpy, c->win, False, NoEventMask, &ev);
}
return exists;
}
void
setfocus(Client *c)
{
if (!c->neverfocus) {
XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime);
XChangeProperty(dpy, root, netatom[NetActiveWindow],
XA_WINDOW, 32, PropModeReplace,
(unsigned char *) &(c->win), 1);
}
sendevent(c, wmatom[WMTakeFocus]);
}
void
setfullscreen(Client *c, int fullscreen)
{
if (fullscreen && !c->isfullscreen) {
XChangeProperty(dpy, c->win, netatom[NetWMState], XA_ATOM, 32,
PropModeReplace, (unsigned char*)&netatom[NetWMFullscreen], 1);
c->isfullscreen = 1;
c->oldstate = c->isfloating;
c->oldbw = c->bw;
c->bw = 0;
c->isfloating = 1;
resizeclient(c, c->mon->mx, c->mon->my, c->mon->mw, c->mon->mh);
XRaiseWindow(dpy, c->win);
} else if (!fullscreen && c->isfullscreen){
XChangeProperty(dpy, c->win, netatom[NetWMState], XA_ATOM, 32,
PropModeReplace, (unsigned char*)0, 0);
c->isfullscreen = 0;
c->isfloating = c->oldstate;
c->bw = c->oldbw;
c->x = c->oldx;
c->y = c->oldy;
c->w = c->oldw;
c->h = c->oldh;
resizeclient(c, c->x, c->y, c->w, c->h);
arrange(c->mon);
}
}
void
setlayout(const Arg *arg)
{
if (!arg || !arg->v || arg->v != selmon->lt[selmon->sellt])
selmon->sellt ^= 1;
if (arg && arg->v)
selmon->lt[selmon->sellt] = (Layout *)arg->v;
strncpy(selmon->ltsymbol, selmon->lt[selmon->sellt]->symbol, sizeof selmon->ltsymbol);
if (selmon->sel)
arrange(selmon);
else
drawbar(selmon);
}
/* arg > 1.0 will set mfact absolutely */
void
setmfact(const Arg *arg)
{
float f;
if (!arg || !selmon->lt[selmon->sellt]->arrange)
return;
f = arg->f < 1.0 ? arg->f + selmon->mfact : arg->f - 1.0;
if (f < 0.1 || f > 0.9)
return;
selmon->mfact = f;
arrange(selmon);
}
void
setup(void)
{
int i;
XSetWindowAttributes wa;
Atom utf8string;
/* clean up any zombies immediately */
sigchld(0);
/* init screen */
screen = DefaultScreen(dpy);
sw = DisplayWidth(dpy, screen);
sh = DisplayHeight(dpy, screen);
root = RootWindow(dpy, screen);
#if ALPHA_PATCH
xinitvisual();
drw = drw_create(dpy, screen, root, sw, sh, visual, depth, cmap);
#else
drw = drw_create(dpy, screen, root, sw, sh);
#endif // ALPHA_PATCH
if (!drw_fontset_create(drw, fonts, LENGTH(fonts)))
die("no fonts could be loaded.");
lrpad = drw->fonts->h;
bh = drw->fonts->h + 2;
updategeom();
/* init atoms */
utf8string = XInternAtom(dpy, "UTF8_STRING", False);
wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);
wmatom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
wmatom[WMState] = XInternAtom(dpy, "WM_STATE", False);
wmatom[WMTakeFocus] = XInternAtom(dpy, "WM_TAKE_FOCUS", False);
netatom[NetActiveWindow] = XInternAtom(dpy, "_NET_ACTIVE_WINDOW", False);
netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False);
netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False);
netatom[NetWMState] = XInternAtom(dpy, "_NET_WM_STATE", False);
netatom[NetWMCheck] = XInternAtom(dpy, "_NET_SUPPORTING_WM_CHECK", False);
netatom[NetWMFullscreen] = XInternAtom(dpy, "_NET_WM_STATE_FULLSCREEN", False);
netatom[NetWMWindowType] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE", False);
netatom[NetWMWindowTypeDialog] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE_DIALOG", False);
netatom[NetClientList] = XInternAtom(dpy, "_NET_CLIENT_LIST", False);
/* init cursors */
cursor[CurNormal] = drw_cur_create(drw, XC_left_ptr);
cursor[CurResize] = drw_cur_create(drw, XC_sizing);
cursor[CurMove] = drw_cur_create(drw, XC_fleur);
/* init appearance */
scheme = ecalloc(LENGTH(colors), sizeof(Clr *));
for (i = 0; i < LENGTH(colors); i++)
#if ALPHA_PATCH
scheme[i] = drw_scm_create(drw, colors[i], alphas[i], 3);
#else
scheme[i] = drw_scm_create(drw, colors[i], 3);
#endif // ALPHA_PATCH
/* init bars */
updatebars();
updatestatus();
/* supporting window for NetWMCheck */
wmcheckwin = XCreateSimpleWindow(dpy, root, 0, 0, 1, 1, 0, 0, 0);
XChangeProperty(dpy, wmcheckwin, netatom[NetWMCheck], XA_WINDOW, 32,
PropModeReplace, (unsigned char *) &wmcheckwin, 1);
XChangeProperty(dpy, wmcheckwin, netatom[NetWMName], utf8string, 8,
PropModeReplace, (unsigned char *) "dwm", 3);
XChangeProperty(dpy, root, netatom[NetWMCheck], XA_WINDOW, 32,
PropModeReplace, (unsigned char *) &wmcheckwin, 1);
/* EWMH support per view */
XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32,
PropModeReplace, (unsigned char *) netatom, NetLast);
XDeleteProperty(dpy, root, netatom[NetClientList]);
/* select events */
wa.cursor = cursor[CurNormal]->cursor;
wa.event_mask = SubstructureRedirectMask|SubstructureNotifyMask
|ButtonPressMask|PointerMotionMask|EnterWindowMask
|LeaveWindowMask|StructureNotifyMask|PropertyChangeMask;
XChangeWindowAttributes(dpy, root, CWEventMask|CWCursor, &wa);
XSelectInput(dpy, root, wa.event_mask);
grabkeys();
focus(NULL);
}
void
seturgent(Client *c, int urg)
{
XWMHints *wmh;
c->isurgent = urg;
if (!(wmh = XGetWMHints(dpy, c->win)))
return;
wmh->flags = urg ? (wmh->flags | XUrgencyHint) : (wmh->flags & ~XUrgencyHint);
XSetWMHints(dpy, c->win, wmh);
XFree(wmh);
}
void
showhide(Client *c)
{
if (!c)
return;
if (ISVISIBLE(c)) {
/* show clients top down */
XMoveWindow(dpy, c->win, c->x, c->y);
if ((!c->mon->lt[c->mon->sellt]->arrange || c->isfloating) && !c->isfullscreen)
resize(c, c->x, c->y, c->w, c->h, 0);
showhide(c->snext);
} else {
/* hide clients bottom up */
showhide(c->snext);
XMoveWindow(dpy, c->win, WIDTH(c) * -2, c->y);
}
}
void
sigchld(int unused)
{
if (signal(SIGCHLD, sigchld) == SIG_ERR)
die("can't install SIGCHLD handler:");
while (0 < waitpid(-1, NULL, WNOHANG));
}
void
spawn(const Arg *arg)
{
if (arg->v == dmenucmd)
dmenumon[0] = '0' + selmon->num;
if (fork() == 0) {
if (dpy)
close(ConnectionNumber(dpy));
setsid();
execvp(((char **)arg->v)[0], (char **)arg->v);
fprintf(stderr, "dwm: execvp %s", ((char **)arg->v)[0]);
perror(" failed");
exit(EXIT_SUCCESS);
}
}
void
tag(const Arg *arg)
{
if (selmon->sel && arg->ui & TAGMASK) {
selmon->sel->tags = arg->ui & TAGMASK;
focus(NULL);
arrange(selmon);
}
}
void
tagmon(const Arg *arg)
{
if (!selmon->sel || !mons->next)
return;
sendmon(selmon->sel, dirtomon(arg->i));
}
void
tile(Monitor *m)
{
unsigned int i, n, h, mw, my, ty;
Client *c;
for (n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++);
if (n == 0)
return;
if (n > m->nmaster)
mw = m->nmaster ? m->ww * m->mfact : 0;
else
mw = m->ww;
for (i = my = ty = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++)
if (i < m->nmaster) {
h = (m->wh - my) / (MIN(n, m->nmaster) - i);
resize(c, m->wx, m->wy + my, mw - (2*c->bw), h - (2*c->bw), 0);
my += HEIGHT(c);
} else {
h = (m->wh - ty) / (n - i);
resize(c, m->wx + mw, m->wy + ty, m->ww - mw - (2*c->bw), h - (2*c->bw), 0);
ty += HEIGHT(c);
}
}
void
togglebar(const Arg *arg)
{
selmon->showbar = !selmon->showbar;
updatebarpos(selmon);
XMoveResizeWindow(dpy, selmon->barwin, selmon->wx, selmon->by, selmon->ww, bh);
arrange(selmon);
}
void
togglefloating(const Arg *arg)
{
if (!selmon->sel)
return;
if (selmon->sel->isfullscreen) /* no support for fullscreen windows */
return;
selmon->sel->isfloating = !selmon->sel->isfloating || selmon->sel->isfixed;
if (selmon->sel->isfloating)
resize(selmon->sel, selmon->sel->x, selmon->sel->y,
selmon->sel->w, selmon->sel->h, 0);
arrange(selmon);
}
void
toggletag(const Arg *arg)
{
unsigned int newtags;
if (!selmon->sel)
return;
newtags = selmon->sel->tags ^ (arg->ui & TAGMASK);
if (newtags) {
selmon->sel->tags = newtags;
focus(NULL);
arrange(selmon);
}
}
void
toggleview(const Arg *arg)
{
unsigned int newtagset = selmon->tagset[selmon->seltags] ^ (arg->ui & TAGMASK);
if (newtagset) {
selmon->tagset[selmon->seltags] = newtagset;
focus(NULL);
arrange(selmon);
}
}
void
unfocus(Client *c, int setfocus)
{
if (!c)
return;
grabbuttons(c, 0);
XSetWindowBorder(dpy, c->win, scheme[SchemeNorm][ColBorder].pixel);
if (setfocus) {
XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
XDeleteProperty(dpy, root, netatom[NetActiveWindow]);
}
}
void
unmanage(Client *c, int destroyed)
{
Monitor *m = c->mon;
XWindowChanges wc;
detach(c);
detachstack(c);
if (!destroyed) {
wc.border_width = c->oldbw;
XGrabServer(dpy); /* avoid race conditions */
XSetErrorHandler(xerrordummy);
XConfigureWindow(dpy, c->win, CWBorderWidth, &wc); /* restore border */
XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
setclientstate(c, WithdrawnState);
XSync(dpy, False);
XSetErrorHandler(xerror);
XUngrabServer(dpy);
}
free(c);
focus(NULL);
updateclientlist();
arrange(m);
}
void
unmapnotify(XEvent *e)
{
Client *c;
XUnmapEvent *ev = &e->xunmap;
if ((c = wintoclient(ev->window))) {
if (ev->send_event)
setclientstate(c, WithdrawnState);
else
unmanage(c, 0);
}
}
void
updatebars(void)
{
Monitor *m;
XSetWindowAttributes wa = {
.override_redirect = True,
#if ALPHA_PATCH
.background_pixel = 0,
.border_pixel = 0,
.colormap = cmap,
#else
.background_pixmap = ParentRelative,
#endif // ALPHA_PATCH
.event_mask = ButtonPressMask|ExposureMask
};
XClassHint ch = {"dwm", "dwm"};
for (m = mons; m; m = m->next) {
if (m->barwin)
continue;
#if ALPHA_PATCH
m->barwin = XCreateWindow(dpy, root, m->wx, m->by, m->ww, bh, 0, depth,
InputOutput, visual,
CWOverrideRedirect|CWBackPixel|CWBorderPixel|CWColormap|CWEventMask, &wa);
#else
m->barwin = XCreateWindow(dpy, root, m->wx, m->by, m->ww, bh, 0, DefaultDepth(dpy, screen),
CopyFromParent, DefaultVisual(dpy, screen),
CWOverrideRedirect|CWBackPixmap|CWEventMask, &wa);
#endif // ALPHA_PATCH
XDefineCursor(dpy, m->barwin, cursor[CurNormal]->cursor);
XMapRaised(dpy, m->barwin);
XSetClassHint(dpy, m->barwin, &ch);
}
}
void
updatebarpos(Monitor *m)
{
m->wy = m->my;
m->wh = m->mh;
if (m->showbar) {
m->wh -= bh;
m->by = m->topbar ? m->wy : m->wy + m->wh;
m->wy = m->topbar ? m->wy + bh : m->wy;
} else
m->by = -bh;
}
void
updateclientlist()
{
Client *c;
Monitor *m;
XDeleteProperty(dpy, root, netatom[NetClientList]);
for (m = mons; m; m = m->next)
for (c = m->clients; c; c = c->next)
XChangeProperty(dpy, root, netatom[NetClientList],
XA_WINDOW, 32, PropModeAppend,
(unsigned char *) &(c->win), 1);
}
int
updategeom(void)
{
int dirty = 0;
#ifdef XINERAMA
if (XineramaIsActive(dpy)) {
int i, j, n, nn;
Client *c;
Monitor *m;
XineramaScreenInfo *info = XineramaQueryScreens(dpy, &nn);
XineramaScreenInfo *unique = NULL;
for (n = 0, m = mons; m; m = m->next, n++);
/* only consider unique geometries as separate screens */
unique = ecalloc(nn, sizeof(XineramaScreenInfo));
for (i = 0, j = 0; i < nn; i++)
if (isuniquegeom(unique, j, &info[i]))
memcpy(&unique[j++], &info[i], sizeof(XineramaScreenInfo));
XFree(info);
nn = j;
if (n <= nn) { /* new monitors available */
for (i = 0; i < (nn - n); i++) {
for (m = mons; m && m->next; m = m->next);
if (m)
m->next = createmon();
else
mons = createmon();
}
for (i = 0, m = mons; i < nn && m; m = m->next, i++)
if (i >= n
|| unique[i].x_org != m->mx || unique[i].y_org != m->my
|| unique[i].width != m->mw || unique[i].height != m->mh)
{
dirty = 1;
m->num = i;
m->mx = m->wx = unique[i].x_org;
m->my = m->wy = unique[i].y_org;
m->mw = m->ww = unique[i].width;
m->mh = m->wh = unique[i].height;
updatebarpos(m);
}
} else { /* less monitors available nn < n */
for (i = nn; i < n; i++) {
for (m = mons; m && m->next; m = m->next);
while ((c = m->clients)) {
dirty = 1;
m->clients = c->next;
detachstack(c);
c->mon = mons;
attach(c);
attachstack(c);
}
if (m == selmon)
selmon = mons;
cleanupmon(m);
}
}
free(unique);
} else
#endif /* XINERAMA */
{ /* default monitor setup */
if (!mons)
mons = createmon();
if (mons->mw != sw || mons->mh != sh) {
dirty = 1;
mons->mw = mons->ww = sw;
mons->mh = mons->wh = sh;
updatebarpos(mons);
}
}
if (dirty) {
selmon = mons;
selmon = wintomon(root);
}
return dirty;
}
void
updatenumlockmask(void)
{
unsigned int i, j;
XModifierKeymap *modmap;
numlockmask = 0;
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);
}
void
updatesizehints(Client *c)
{
long msize;
XSizeHints size;
if (!XGetWMNormalHints(dpy, c->win, &size, &msize))
/* size is uninitialized, ensure that size.flags aren't used */
size.flags = PSize;
if (size.flags & PBaseSize) {
c->basew = size.base_width;
c->baseh = size.base_height;
} else if (size.flags & PMinSize) {
c->basew = size.min_width;
c->baseh = size.min_height;
} else
c->basew = c->baseh = 0;
if (size.flags & PResizeInc) {
c->incw = size.width_inc;
c->inch = size.height_inc;
} else
c->incw = c->inch = 0;
if (size.flags & PMaxSize) {
c->maxw = size.max_width;
c->maxh = size.max_height;
} else
c->maxw = c->maxh = 0;
if (size.flags & PMinSize) {
c->minw = size.min_width;
c->minh = size.min_height;
} else if (size.flags & PBaseSize) {
c->minw = size.base_width;
c->minh = size.base_height;
} else
c->minw = c->minh = 0;
if (size.flags & PAspect) {
c->mina = (float)size.min_aspect.y / size.min_aspect.x;
c->maxa = (float)size.max_aspect.x / size.max_aspect.y;
} else
c->maxa = c->mina = 0.0;
c->isfixed = (c->maxw && c->maxh && c->maxw == c->minw && c->maxh == c->minh);
}
void
updatestatus(void)
{
if (!gettextprop(root, XA_WM_NAME, stext, sizeof(stext)))
strcpy(stext, "dwm-"VERSION);
drawbar(selmon);
}
void
updatetitle(Client *c)
{
if (!gettextprop(c->win, netatom[NetWMName], c->name, sizeof c->name))
gettextprop(c->win, XA_WM_NAME, c->name, sizeof c->name);
if (c->name[0] == '\0') /* hack to mark broken clients */
strcpy(c->name, broken);
}
void
updatewindowtype(Client *c)
{
Atom state = getatomprop(c, netatom[NetWMState]);
Atom wtype = getatomprop(c, netatom[NetWMWindowType]);
if (state == netatom[NetWMFullscreen])
setfullscreen(c, 1);
if (wtype == netatom[NetWMWindowTypeDialog])
c->isfloating = 1;
}
void
updatewmhints(Client *c)
{
XWMHints *wmh;
if ((wmh = XGetWMHints(dpy, c->win))) {
if (c == selmon->sel && wmh->flags & XUrgencyHint) {
wmh->flags &= ~XUrgencyHint;
XSetWMHints(dpy, c->win, wmh);
} else
c->isurgent = (wmh->flags & XUrgencyHint) ? 1 : 0;
if (wmh->flags & InputHint)
c->neverfocus = !wmh->input;
else
c->neverfocus = 0;
XFree(wmh);
}
}
void
view(const Arg *arg)
{
if ((arg->ui & TAGMASK) == selmon->tagset[selmon->seltags])
return;
selmon->seltags ^= 1; /* toggle sel tagset */
if (arg->ui & TAGMASK)
selmon->tagset[selmon->seltags] = arg->ui & TAGMASK;
focus(NULL);
arrange(selmon);
}
Client *
wintoclient(Window w)
{
Client *c;
Monitor *m;
for (m = mons; m; m = m->next)
for (c = m->clients; c; c = c->next)
if (c->win == w)
return c;
return NULL;
}
Monitor *
wintomon(Window w)
{
int x, y;
Client *c;
Monitor *m;
if (w == root && getrootptr(&x, &y))
return recttomon(x, y, 1, 1);
for (m = mons; m; m = m->next)
if (w == m->barwin)
return m;
if ((c = wintoclient(w)))
return c->mon;
return selmon;
}
/* 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_GrabButton && ee->error_code == BadAccess)
|| (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
xerrordummy(Display *dpy, XErrorEvent *ee)
{
return 0;
}
/* Startup Error handler to check if another window manager
* is already running. */
int
xerrorstart(Display *dpy, XErrorEvent *ee)
{
die("dwm: another window manager is already running");
return -1;
}
#if ALPHA_PATCH
void
xinitvisual()
{
XVisualInfo *infos;
XRenderPictFormat *fmt;
int nitems;
int i;
XVisualInfo tpl = {
.screen = screen,
.depth = 32,
.class = TrueColor
};
long masks = VisualScreenMask | VisualDepthMask | VisualClassMask;
infos = XGetVisualInfo(dpy, masks, &tpl, &nitems);
visual = NULL;
for(i = 0; i < nitems; i ++) {
fmt = XRenderFindVisualFormat(dpy, infos[i].visual);
if (fmt->type == PictTypeDirect && fmt->direct.alphaMask) {
visual = infos[i].visual;
depth = infos[i].depth;
cmap = XCreateColormap(dpy, root, visual, AllocNone);
useargb = 1;
break;
}
}
XFree(infos);
if (! visual) {
visual = DefaultVisual(dpy, screen);
depth = DefaultDepth(dpy, screen);
cmap = DefaultColormap(dpy, screen);
}
}
#endif // ALPHA_PATCH
void
zoom(const Arg *arg)
{
Client *c = selmon->sel;
if (!selmon->lt[selmon->sellt]->arrange
|| (selmon->sel && selmon->sel->isfloating))
return;
if (c == nexttiled(selmon->clients))
if (!c || !(c = nexttiled(c->next)))
return;
pop(c);
}
int
main(int argc, char *argv[])
{
if (argc == 2 && !strcmp("-v", argv[1]))
die("dwm-"VERSION);
else if (argc != 1)
die("usage: dwm [-v]");
if (!setlocale(LC_CTYPE, "") || !XSupportsLocale())
fputs("warning: no locale support\n", stderr);
if (!(dpy = XOpenDisplay(NULL)))
die("dwm: cannot open display");
checkotherwm();
setup();
#ifdef __OpenBSD__
if (pledge("stdio rpath proc exec", NULL) == -1)
die("pledge");
#endif /* __OpenBSD__ */
scan();
run();
cleanup();
XCloseDisplay(dpy);
return EXIT_SUCCESS;
}

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42
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/* cc transient.c -o transient -lX11 */
#include <stdlib.h>
#include <unistd.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
int main(void) {
Display *d;
Window r, f, t = None;
XSizeHints h;
XEvent e;
d = XOpenDisplay(NULL);
if (!d)
exit(1);
r = DefaultRootWindow(d);
f = XCreateSimpleWindow(d, r, 100, 100, 400, 400, 0, 0, 0);
h.min_width = h.max_width = h.min_height = h.max_height = 400;
h.flags = PMinSize | PMaxSize;
XSetWMNormalHints(d, f, &h);
XStoreName(d, f, "floating");
XMapWindow(d, f);
XSelectInput(d, f, ExposureMask);
while (1) {
XNextEvent(d, &e);
if (t == None) {
sleep(5);
t = XCreateSimpleWindow(d, r, 50, 50, 100, 100, 0, 0, 0);
XSetTransientForHint(d, t, f);
XStoreName(d, t, "transient");
XMapWindow(d, t);
XSelectInput(d, t, ExposureMask);
}
}
XCloseDisplay(d);
exit(0);
}

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/* See LICENSE file for copyright and license details. */
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "util.h"
void *
ecalloc(size_t nmemb, size_t size)
{
void *p;
if (!(p = calloc(nmemb, size)))
die("calloc:");
return p;
}
void
die(const char *fmt, ...) {
va_list ap;
va_start(ap, fmt);
vfprintf(stderr, fmt, ap);
va_end(ap);
if (fmt[0] && fmt[strlen(fmt)-1] == ':') {
fputc(' ', stderr);
perror(NULL);
} else {
fputc('\n', stderr);
}
exit(1);
}

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/* See LICENSE file for copyright and license details. */
#define MAX(A, B) ((A) > (B) ? (A) : (B))
#define MIN(A, B) ((A) < (B) ? (A) : (B))
#define BETWEEN(X, A, B) ((A) <= (X) && (X) <= (B))
void die(const char *fmt, ...);
void *ecalloc(size_t nmemb, size_t size);