code:
from __future__ import unicode_literals

__version__ = '2020.09.20'

repo_name: rrosajp/youtube


code:
---

18:17 < Biolunar> when i change my resolution in dwm (to a smaller one) and then back to the native, the top bar is not repainted. that's since 5.7.2, in 5.6 it worked fine
18:19 < Biolunar> is it just happening to me or a (known) bug?
18:24 < Biolunar> and in addition, mplayers fullscreen is limited to the small resolution after i changed it back to the native

reproducible with xrandr -s but not with --output and --mode, strange

---

yet another corner case:
open a terminal, focus another monitor, but without moving the mouse
pointer there
if there is no client on the other monitor to get the focus, then the
terminal will be unfocused but it will accept input

---

Donald Allen reported this:

starting emacs from dmenu in archlinux results in missing configure of emacs, but mod1-space or mod1-shift-space fix this problem. this problem is new and did not happen in 1.6 xorg servers

---

voltaic reports this:

When I use two monitors, one larger in resolution than the other, the
bar is drawn using the smaller x-dimension on both screens. I think
what's happening is that there are two bars drawn, but the short bar
is always on top of the long bar such that I can't see the information
under the short bar. If I switch to the small screen, hide the short
bar, and then switch to the large screen, the long bar is drawn
correctly.

A similar problem occurs when I have started dwm on a small resolution
monitor (laptop screen) and then I switch to a large external display.
When I do this, the bar itself is drawn for the original smaller
resolution, but the information to be printed on the bar is
right-aligned for a longer bar. So what I see is a bar that has the
right hand side of it cut-off. See attached screenshot.

I am using standard options for xrandr such as --output VGA1 --auto, etc.

---

repo_name: suroa/mydwm

path: BUGS

license: mit


code:
# 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:
	@echo CC $<
	@${CC} -c ${CFLAGS} $<

${OBJ}: config.h config.mk

config.h:
	@echo creating $@ from config.def.h
	@cp config.def.h $@

dwm: ${OBJ}
	@echo CC -o $@
	@${CC} -o $@ ${OBJ} ${LDFLAGS}

clean:
	@echo cleaning
	@rm -f dwm ${OBJ} dwm-${VERSION}.tar.gz

dist: clean
	@echo creating dist tarball
	@mkdir -p dwm-${VERSION}
	@cp -R LICENSE TODO BUGS 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
	@echo installing executable file to ${DESTDIR}${PREFIX}/bin
	@mkdir -p ${DESTDIR}${PREFIX}/bin
	@cp -f dwm ${DESTDIR}${PREFIX}/bin
	@chmod 755 ${DESTDIR}${PREFIX}/bin/dwm
	@echo installing manual page to ${DESTDIR}${MANPREFIX}/man1
	@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:
	@echo removing executable file from ${DESTDIR}${PREFIX}/bin
	@rm -f ${DESTDIR}${PREFIX}/bin/dwm
	@echo removing manual page from ${DESTDIR}${MANPREFIX}/man1
	@rm -f ${DESTDIR}${MANPREFIX}/man1/dwm.1

.PHONY: all options clean dist install uninstall

path: Makefile


code:
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

If you are going to use the default bluegray color scheme it is highly
recommended to also install the bluegray files shipped in the dextra package.

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.

path: README


code:
- add a flag to Key to execute the command on release (needed for commands
		affecting the keyboard grab, see scrot -s for example)
- add updategeom() hook for external tools like dzen
- consider onscreenkeyboard hooks for tablet deployment

path: TODO


code:
/* See LICENSE file for copyright and license details. */

/* appearance */
static const char *fonts[] = {
	"monospace:size=10"
};
static const char dmenufont[]       = "monospace:size=10";
static const char normbordercolor[] = "#444444";
static const char normbgcolor[]     = "#222222";
static const char normfgcolor[]     = "#bbbbbb";
static const char selbordercolor[]  = "#005577";
static const char selbgcolor[]      = "#005577";
static const char selfgcolor[]      = "#eeeeee";
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 */

/* 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", normbgcolor, "-nf", normfgcolor, "-sb", selbgcolor, "-sf", selfgcolor, 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 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} },
};


code:
# dwm version
VERSION = 6.1

# 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}

# flags
CPPFLAGS = -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  = -s ${LIBS}

# Solaris
#CFLAGS = -fast ${INCS} -DVERSION=\"${VERSION}\"
#LDFLAGS = ${LIBS}

# compiler and linker
CC = cc


code:
/* 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 *
drw_create(Display *dpy, int screen, Window root, unsigned int w, unsigned int h)
{
	Drw *drw;

	drw = ecalloc(1, sizeof(Drw));
	drw->dpy = dpy;
	drw->screen = screen;
	drw->root = root;
	drw->w = w;
	drw->h = h;
	drw->drawable = XCreatePixmap(dpy, root, w, h, DefaultDepth(dpy, screen));
	drw->gc = XCreateGC(dpy, root, 0, NULL);
	drw->fontcount = 0;
	XSetLineAttributes(dpy, drw->gc, 1, LineSolid, CapButt, JoinMiter);

	return drw;
}

void
drw_resize(Drw *drw, unsigned int w, unsigned int h)
{
	drw->w = w;
	drw->h = h;
	if (drw->drawable)
		XFreePixmap(drw->dpy, drw->drawable);
	drw->drawable = XCreatePixmap(drw->dpy, drw->root, w, h, DefaultDepth(drw->dpy, drw->screen));
}

void
drw_free(Drw *drw)
{
	size_t i;

	for (i = 0; i < drw->fontcount; i++)
		drw_font_free(drw->fonts[i]);
	XFreePixmap(drw->dpy, drw->drawable);
	XFreeGC(drw->dpy, drw->gc);
	free(drw);
}

/* This function is an implementation detail. Library users should use
 * drw_font_create instead.
 */
static Fnt *
drw_font_xcreate(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 same
		 * 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: '%s'\n", fontname);
			return NULL;
		}
		if (!(pattern = FcNameParse((FcChar8 *) fontname))) {
			fprintf(stderr, "error, cannot load font: '%s'\n", fontname);
			XftFontClose(drw->dpy, xfont);
			return NULL;
		}
	} else if (fontpattern) {
		if (!(xfont = XftFontOpenPattern(drw->dpy, fontpattern))) {
			fprintf(stderr, "error, cannot load font pattern.\n");
			return NULL;
		}
	} else {
		die("no font specified.\n");
	}

	font = ecalloc(1, sizeof(Fnt));
	font->xfont = xfont;
	font->pattern = pattern;
	font->ascent = xfont->ascent;
	font->descent = xfont->descent;
	font->h = font->ascent + font->descent;
	font->dpy = drw->dpy;

	return font;
}

Fnt*
drw_font_create(Drw *drw, const char *fontname)
{
	return drw_font_xcreate(drw, fontname, NULL);
}

void
drw_load_fonts(Drw* drw, const char *fonts[], size_t fontcount)
{
	size_t i;
	Fnt *font;

	for (i = 0; i < fontcount; i++) {
		if (drw->fontcount >= DRW_FONT_CACHE_SIZE) {
			die("font cache exhausted.\n");
		} else if ((font = drw_font_xcreate(drw, fonts[i], NULL))) {
			drw->fonts[drw->fontcount++] = font;
		}
	}
}

void
drw_font_free(Fnt *font)
{
	if (!font)
		return;
	if (font->pattern)
		FcPatternDestroy(font->pattern);
	XftFontClose(font->dpy, font->xfont);
	free(font);
}

Clr *
drw_clr_create(Drw *drw, const char *clrname)
{
	Clr *clr;

	clr = ecalloc(1, sizeof(Clr));
	if (!XftColorAllocName(drw->dpy, DefaultVisual(drw->dpy, drw->screen),
	                       DefaultColormap(drw->dpy, drw->screen),
	                       clrname, &clr->rgb))
		die("error, cannot allocate color '%s'\n", clrname);
	clr->pix = clr->rgb.pixel;

	return clr;
}

void
drw_clr_free(Clr *clr)
{
	free(clr);
}

void
drw_setscheme(Drw *drw, ClrScheme *scheme)
{
	drw->scheme = scheme;
}

void
drw_rect(Drw *drw, int x, int y, unsigned int w, unsigned int h, int filled, int empty, int invert)
{
	if (!drw->scheme)
		return;
	XSetForeground(drw->dpy, drw->gc, invert ? drw->scheme->bg->pix : drw->scheme->fg->pix);
	if (filled)
		XFillRectangle(drw->dpy, drw->drawable, drw->gc, x, y, w + 1, h + 1);
	else if (empty)
		XDrawRectangle(drw->dpy, drw->drawable, drw->gc, x, y, w, h);
}

int
drw_text(Drw *drw, int x, int y, unsigned int w, unsigned int h, const char *text, int invert)
{
	char buf[1024];
	int tx, ty, th;
	Extnts tex;
	XftDraw *d = NULL;
	Fnt *curfont, *nextfont;
	size_t i, len;
	int utf8strlen, utf8charlen, render;
	long utf8codepoint = 0;
	const char *utf8str;
	FcCharSet *fccharset;
	FcPattern *fcpattern;
	FcPattern *match;
	XftResult result;
	int charexists = 0;

	if (!drw->scheme || !drw->fontcount)
		return 0;

	if (!(render = x || y || w || h)) {
		w = ~w;
	} else {
		XSetForeground(drw->dpy, drw->gc, invert ?
		               drw->scheme->fg->pix : drw->scheme->bg->pix);
		XFillRectangle(drw->dpy, drw->drawable, drw->gc, x, y, w, h);
		d = XftDrawCreate(drw->dpy, drw->drawable,
		                  DefaultVisual(drw->dpy, drw->screen),
		                  DefaultColormap(drw->dpy, drw->screen));
	}

	curfont = drw->fonts[0];
	while (1) {
		utf8strlen = 0;
		utf8str = text;
		nextfont = NULL;
		while (*text) {
			utf8charlen = utf8decode(text, &utf8codepoint, UTF_SIZ);
			for (i = 0; i < drw->fontcount; i++) {
				charexists = charexists || XftCharExists(drw->dpy, drw->fonts[i]->xfont, utf8codepoint);
				if (charexists) {
					if (drw->fonts[i] == curfont) {
						utf8strlen += utf8charlen;
						text += utf8charlen;
					} else {
						nextfont = drw->fonts[i];
					}
					break;
				}
			}

			if (!charexists || (nextfont && nextfont != curfont))
				break;
			else
				charexists = 0;
		}

		if (utf8strlen) {
			drw_font_getexts(curfont, utf8str, utf8strlen, &tex);
			/* shorten text if necessary */
			for (len = MIN(utf8strlen, (sizeof buf) - 1); len && (tex.w > w - drw->fonts[0]->h || w < drw->fonts[0]->h); len--)
				drw_font_getexts(curfont, utf8str, len, &tex);

			if (len) {
				memcpy(buf, utf8str, len);
				buf[len] = '\0';
				if (len < utf8strlen)
					for (i = len; i && i > len - 3; buf[--i] = '.');

				if (render) {
					th = curfont->ascent + curfont->descent;
					ty = y + (h / 2) - (th / 2) + curfont->ascent;
					tx = x + (h / 2);
					XftDrawStringUtf8(d, invert ? &drw->scheme->bg->rgb : &drw->scheme->fg->rgb, curfont->xfont, tx, ty, (XftChar8 *)buf, len);
				}
				x += tex.w;
				w -= tex.w;
			}
		}

		if (!*text) {
			break;
		} else if (nextfont) {
			charexists = 0;
			curfont = nextfont;
		} else {
			/* Regardless of whether or not a fallback font is found, the
			 * character must be drawn.
			 */
			charexists = 1;

			if (drw->fontcount >= DRW_FONT_CACHE_SIZE)
				continue;

			fccharset = FcCharSetCreate();
			FcCharSetAddChar(fccharset, utf8codepoint);

			if (!drw->fonts[0]->pattern) {
				/* Refer to the comment in drw_font_xcreate for more
				 * information. */
				die("the first font in the cache must be loaded from a font string.\n");
			}

			fcpattern = FcPatternDuplicate(drw->fonts[0]->pattern);
			FcPatternAddCharSet(fcpattern, FC_CHARSET, fccharset);
			FcPatternAddBool(fcpattern, FC_SCALABLE, FcTrue);

			FcConfigSubstitute(NULL, fcpattern, FcMatchPattern);
			FcDefaultSubstitute(fcpattern);
			match = XftFontMatch(drw->dpy, drw->screen, fcpattern, &result);

			FcCharSetDestroy(fccharset);
			FcPatternDestroy(fcpattern);

			if (match) {
				curfont = drw_font_xcreate(drw, NULL, match);
				if (curfont && XftCharExists(drw->dpy, curfont->xfont, utf8codepoint)) {
					drw->fonts[drw->fontcount++] = curfont;
				} else {
					drw_font_free(curfont);
					curfont = drw->fonts[0];
				}
			}
		}
	}
	if (d)
		XftDrawDestroy(d);

	return x;
}

void
drw_map(Drw *drw, Window win, int x, int y, unsigned int w, unsigned int h)
{
	XCopyArea(drw->dpy, drw->drawable, win, drw->gc, x, y, w, h, x, y);
	XSync(drw->dpy, False);
}

void
drw_font_getexts(Fnt *font, const char *text, unsigned int len, Extnts *tex)
{
	XGlyphInfo ext;

	XftTextExtentsUtf8(font->dpy, font->xfont, (XftChar8 *)text, len, &ext);
	tex->h = font->h;
	tex->w = ext.xOff;
}

unsigned int
drw_font_getexts_width(Fnt *font, const char *text, unsigned int len)
{
	Extnts tex;

	drw_font_getexts(font, text, len, &tex);

	return tex.w;
}

Cur *
drw_cur_create(Drw *drw, int shape)
{
	Cur *cur;

	cur = ecalloc(1, sizeof(Cur));
	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);
}


code:
/* See LICENSE file for copyright and license details. */
#define DRW_FONT_CACHE_SIZE 32

typedef struct {
	unsigned long pix;
	XftColor rgb;
} Clr;

typedef struct {
	Cursor cursor;
} Cur;

typedef struct {
	Display *dpy;
	int ascent;
	int descent;
	unsigned int h;
	XftFont *xfont;
	FcPattern *pattern;
} Fnt;

typedef struct {
	Clr *fg;
	Clr *bg;
	Clr *border;
} ClrScheme;

typedef struct {
	unsigned int w, h;
	Display *dpy;
	int screen;
	Window root;
	Drawable drawable;
	GC gc;
	ClrScheme *scheme;
	size_t fontcount;
	Fnt *fonts[DRW_FONT_CACHE_SIZE];
} Drw;

typedef struct {
	unsigned int w;
	unsigned int h;
} Extnts;

/* Drawable abstraction */
Drw *drw_create(Display *, int, Window, unsigned int, unsigned int);
void drw_resize(Drw *, unsigned int, unsigned int);
void drw_free(Drw *);

/* Fnt abstraction */
Fnt *drw_font_create(Drw *, const char *);
void drw_load_fonts(Drw *, const char *[], size_t);
void drw_font_free(Fnt *);
void drw_font_getexts(Fnt *, const char *, unsigned int, Extnts *);
unsigned int drw_font_getexts_width(Fnt *, const char *, unsigned int);

/* Colour abstraction */
Clr *drw_clr_create(Drw *, const char *);
void drw_clr_free(Clr *);

/* Cursor abstraction */
Cur *drw_cur_create(Drw *, int);
void drw_cur_free(Drw *, Cur *);

/* Drawing context manipulation */
void drw_setfont(Drw *, Fnt *);
void drw_setscheme(Drw *, ClrScheme *);

/* Drawing functions */
void drw_rect(Drw *, int, int, unsigned int, unsigned int, int, int, int);
int drw_text(Drw *, int, int, unsigned int, unsigned int, const char *, int);

/* Map functions */
void drw_map(Drw *, Window, int, int, unsigned int, unsigned int);


code:
.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 contains the window which currently needs most attention, whereas the
stacking area contains all other windows. 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\-,
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 clients in master area.
.TP
.B Mod1\-d
Decrease clients 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 BUGS
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 .
.P
GTK 2.10.9+ versions contain a broken
.BR Save\-As
file dialog implementation,
which requests to reconfigure its window size in an endless loop. However, its
window is still respondable during this state, so you can simply ignore the flicker
until a new GTK version appears, which will fix this bug, approximately
GTK 2.10.12+ versions.


code:
/* 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>

#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_text(drw, 0, 0, 0, 0, (X), 0) + drw->fonts[0]->h)

/* enums */
enum { CurNormal, CurResize, CurMove, CurLast }; /* cursor */
enum { SchemeNorm, SchemeSel, SchemeLast }; /* color schemes */
enum { NetSupported, NetWMName, NetWMState,
       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 clearurgent(Client *c);
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 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 int updategeom(void);
static void updatebarpos(Monitor *m);
static void updatebars(void);
static void updateclientlist(void);
static void updatenumlockmask(void);
static void updatesizehints(Client *c);
static void updatestatus(void);
static void updatewindowtype(Client *c);
static void updatetitle(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);
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 (*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 ClrScheme scheme[SchemeLast];
static Display *dpy;
static Drw *drw;
static Monitor *mons, *selmon;
static Window root;

/* 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)
{
	int n = 0;
	Client *c;
	strncpy(m->ltsymbol, m->lt[m->sellt]->symbol, sizeof m->ltsymbol);
	for (n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++);
	if ((m->lt[m->sellt]->arrange != monocle && n > 1) || !m->lt[m->sellt]->arrange) {
		for (c = m->clients; c; c = c->next) {
			if (ISVISIBLE(c) && (!m->lt[m->sellt]->arrange || !c->isfloating) && (c->bw != borderpx)) {
				c->oldbw = c->bw;
				c->bw = borderpx;
				resizeclient(c, m->wx, m->wy, m->ww - (2 * c->bw), m->wh - (2 * c->bw));
			}
		}
		if (m->lt[m->sellt]->arrange) {
			m->lt[m->sellt]->arrange(m);
		}
	} else {
		monocle(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);
		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 < SchemeLast; i++) {
		drw_clr_free(scheme[i].border);
		drw_clr_free(scheme[i].bg);
		drw_clr_free(scheme[i].fg);
	}
	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
clearurgent(Client *c)
{
	XWMHints *wmh;

	c->isurgent = 0;
	if (!(wmh = XGetWMHints(dpy, c->win)))
		return;
	wmh->flags &= ~XUrgencyHint;
	XSetWMHints(dpy, c->win, wmh);
	XFree(wmh);
}

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 (!ISVISIBLE(c)) {
			c->mon->seltags ^= 1;
			c->mon->tagset[c->mon->seltags] = c->tags;
		}
		pop(c);
	}
}

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;
	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)
				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, xx, w, dx;
	unsigned int i, occ = 0, urg = 0;
	Client *c;

	dx = (drw->fonts[0]->ascent + drw->fonts[0]->descent + 2) / 4;

	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, m->tagset[m->seltags] & 1 << i ? &scheme[SchemeSel] : &scheme[SchemeNorm]);
		drw_text(drw, x, 0, w, bh, tags[i], urg & 1 << i);
		drw_rect(drw, x + 1, 1, dx, dx, m == selmon && selmon->sel && selmon->sel->tags & 1 << i,
		           occ & 1 << i, urg & 1 << i);
		x += w;
	}
	w = blw = TEXTW(m->ltsymbol);
	drw_setscheme(drw, &scheme[SchemeNorm]);
	drw_text(drw, x, 0, w, bh, m->ltsymbol, 0);
	x += w;
	xx = x;
	if (m == selmon) { /* status is only drawn on selected monitor */
		w = TEXTW(stext);
		x = m->ww - w;
		if (x < xx) {
			x = xx;
			w = m->ww - xx;
		}
		drw_text(drw, x, 0, w, bh, stext, 0);
	} else
		x = m->ww;
	if ((w = x - xx) > bh) {
		x = xx;
		if (m->sel) {
			drw_setscheme(drw, m == selmon ? &scheme[SchemeSel] : &scheme[SchemeNorm]);
			drw_text(drw, x, 0, w, bh, m->sel->name, 0);
			drw_rect(drw, x + 1, 1, dx, dx, m->sel->isfixed, m->sel->isfloating, 0);
		} else {
			drw_setscheme(drw, &scheme[SchemeNorm]);
			drw_rect(drw, x, 0, w, bh, 1, 0, 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);
	/* was if (selmon->sel) */
	if (selmon->sel && selmon->sel != c)
		unfocus(selmon->sel, 0);
	if (c) {
		if (c->mon != selmon)
			selmon = c->mon;
		if (c->isurgent)
			clearurgent(c);
		detachstack(c);
		attachstack(c);
		grabbuttons(c, 1);
		XSetWindowBorder(dpy, c->win, scheme[SchemeSel].border->pix);
		setfocus(c);
	} else {
		XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
		XDeleteProperty(dpy, root, netatom[NetActiveWindow]);
	}
	selmon->sel = c;
	drawbars();
}

/* there are some broken focus acquiring clients */
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); /* s/1/0/ fixes input focus issues
					in gedit and anjuta */
	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';
	XGetTextProperty(dpy, w, &name, atom);
	if (!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) {
			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);
		} else
			XGrabButton(dpy, AnyButton, AnyModifier, 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;
	updatetitle(c);
	if (XGetTransientForHint(dpy, w, &trans) && (t = wintoclient(trans))) {
		c->mon = t->mon;
		c->tags = t->tags;
	} else {
		c->mon = selmon;
		applyrules(c);
	}
	/* 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;

	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].border->pix);
	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 && m->lt[m->sellt]->arrange == monocle) /* override layout symbol */
		snprintf(m->ltsymbol, sizeof m->ltsymbol, "[%d]", n);
	for(c = nexttiled(m->clients); c; c = nexttiled(c->next)) {
		// I'm not sure, but calling resize with the border width subtractions
		// fixes a glitch where windows would not redraw until they were
		// manually resized after restarting dwm.
		resize(c, m->wx, m->wy, m->ww - (2 * c->bw), m->wh - (2 * c->bw), False);
		if (c->bw) {
			c->oldbw = c->bw;
			c->bw = 0;
			resizeclient(c, m->wx, m->wy, m->ww, m->wh);
		}
	}
}

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 (nx >= selmon->wx && nx <= selmon->wx + selmon->ww
			&& ny >= selmon->wy && ny <= selmon->wy + selmon->wh) {
				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 absolutly */
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)
{
	XSetWindowAttributes wa;

	/* clean up any zombies immediately */
	sigchld(0);

	/* init screen */
	screen = DefaultScreen(dpy);
	sw = DisplayWidth(dpy, screen);
	sh = DisplayHeight(dpy, screen);
	root = RootWindow(dpy, screen);
	drw = drw_create(dpy, screen, root, sw, sh);
	drw_load_fonts(drw, fonts, LENGTH(fonts));
	if (!drw->fontcount)
		die("no fonts could be loaded.\n");
	bh = drw->fonts[0]->h + 2;
	updategeom();
	/* init atoms */
	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[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[SchemeNorm].border = drw_clr_create(drw, normbordercolor);
	scheme[SchemeNorm].bg = drw_clr_create(drw, normbgcolor);
	scheme[SchemeNorm].fg = drw_clr_create(drw, normfgcolor);
	scheme[SchemeSel].border = drw_clr_create(drw, selbordercolor);
	scheme[SchemeSel].bg = drw_clr_create(drw, selbgcolor);
	scheme[SchemeSel].fg = drw_clr_create(drw, selfgcolor);
	/* init bars */
	updatebars();
	updatestatus();
	/* EWMH support per view */
	XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32,
			PropModeReplace, (unsigned char *) netatom, NetLast);
	XDeleteProperty(dpy, root, netatom[NetClientList]);
	/* select for 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
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) {
		if (selmon->sel->bw != borderpx) {
			selmon->sel->oldbw = selmon->sel->bw;
			selmon->sel->bw = borderpx;
		}
		resize(selmon->sel, selmon->sel->x, selmon->sel->y,
		       selmon->sel->w - selmon->sel->bw * 2, selmon->sel->h - selmon->sel->bw * 2, 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].border->pix);
	if (setfocus) {
		XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
		XDeleteProperty(dpy, root, netatom[NetActiveWindow]);
	}
}

void
unmanage(Client *c, int destroyed)
{
	Monitor *m = c->mon;
	XWindowChanges wc;

	/* The server grab construct avoids race conditions. */
	detach(c);
	detachstack(c);
	if (!destroyed) {
		wc.border_width = c->oldbw;
		XGrabServer(dpy);
		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,
		.background_pixmap = ParentRelative,
		.event_mask = ButtonPressMask|ExposureMask
	};
	for (m = mons; m; m = m->next) {
		if (m->barwin)
			continue;
		m->barwin = XCreateWindow(dpy, root, m->wx, m->by, m->ww, bh, 0, DefaultDepth(dpy, screen),
		                          CopyFromParent, DefaultVisual(dpy, screen),
		                          CWOverrideRedirect|CWBackPixmap|CWEventMask, &wa);
		XDefineCursor(dpy, m->barwin, cursor[CurNormal]->cursor);
		XMapRaised(dpy, m->barwin);
	}
}

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) {
			for (i = 0; i < (nn - n); i++) { /* new monitors available */
				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 (m->clients) {
					dirty = 1;
					c = m->clients;
					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->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, XA_WM_NAME, c->name, sizeof c->name);
	if (c->name[0] == '\0') /* hack to mark broken clients */
		strcpy(c->name, broken);
}

void
updatestatus(void)
{
	if (!gettextprop(root, XA_WM_NAME, stext, sizeof(stext)))
		strcpy(stext, "dwm-"VERSION);
	drawbar(selmon);
}

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\n");
	return -1;
}

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 "\n");
	else if (argc != 1)
		die("usage: dwm [-v]\n");
	if (!setlocale(LC_CTYPE, "") || !XSupportsLocale())
		fputs("warning: no locale support\n", stderr);
	if (!(dpy = XOpenDisplay(NULL)))
		die("dwm: cannot open display\n");
	checkotherwm();
	setup();
	scan();
	run();
	cleanup();
	XCloseDisplay(dpy);
	return EXIT_SUCCESS;
}


code:
/* 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);
}


code:
/* 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)))
		perror(NULL);
	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);
	}

	exit(1);
}


code:
/* 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 *errstr, ...);
void *ecalloc(size_t, size_t);


code:
License for Code
----------------

Copyright (C) 2018 Annalysa

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

License for Textures
---------------------------------------

CC-BY-SA 3.0 UNPORTED. Created by Annalysa

repo_name: Bastrabun/sandwiches

license: unknown


code:
Ciao!
This is my first mod, so sorry if there are any errors or english typos.

This mod adds to your minetest game various type of sandwiches,
including vegetarian, nutella bacon, pb&j, bacon and many more
if you have supported mods like BBQ and cucina_vegana!
There are also some other related food like a sweet bread pudding,
made from sandwiches crumbs and jam.

Developed and tested on Minetest 0.4.17, works for 0.4.16 too.

Current version: Current version: v1.7 added cucina_vegana compatibility + more sandwiches
v 1.6 - added bbq compatibility + chicken strips
v 1.5 - added ethereal compatibility and lots of sandwiches
v 1.4 - peanut crop and bacon added
v 1.3 - made moretrees optional
v 1.2 - replaced meat with craftable ham
v 1.1 - fixed some on_use values
v 1.0 - the very first release;

This mod has some dependencies, so be careful with the installation.

farming redo by TenPlus1
mobs by TenPlus1
moretrees by VanessaE - Optional (thanks R-One)
ethereal by TenPlus1 - Optional
Your Dad's BBQ Mod (aka bbq) by Grizzly Adam - Optional
cucina_vegana by Clyde - Optional (thanks friend)

This mod has a LGPL v2.1 Licence.

Installation

Unzip the archive, rename the folder to sandwiches and place it in
../minetest/mods/

GNU+Linux: If you use a system-wide installation place it in
~/.minetest/mods/

If you only want this to be used in a single world, place the folder in
../minetest/worlds/world_name/worldmods/


code:
picnic basket (little storage for group:food_sandwiches)
toasts,
cheese support:
grilled cheese sandwich (the one from the sims 2)
fairy bread, (butter and sprinkles)
croque monsier, croce madame

if there will be salmon: lox sandwich
		shrimps: po' boy

ketchup and maionesse (need lemontree)


code:
-- peanut seeds
minetest.register_node("sandwiches:seed_peanuts", {
	description = "Peanuts Seed",
	tiles = {"seed_peanuts.png"},
	inventory_image = "seed_peanuts.png",
	wield_image = "seed_peanuts.png",
	drawtype = "signlike",
	groups = {seed = 1, snappy = 3, attached_node = 1, flammable = 4},
	paramtype = "light",
	paramtype2 = "wallmounted",
	walkable = false,
	sunlight_propagates = true,
	selection_box = farming.select,
	on_place = function(itemstack, placer, pointed_thing)
		return farming.place_seed(itemstack, placer, pointed_thing, "sandwiches:peanut_1")
	end,
})

-- peanut plant definition

local crop_def = {
	drawtype = "plantlike",
	tiles = {"sandwiches_peanut_1.png"},
	paramtype = "light",
--	paramtype2 = "meshoptions",
--	place_param2 = 3,
	sunlight_propagates = true,
	walkable = false,
	buildable_to = true,
	drop = "",
	selection_box = farming.select,
	groups = { snappy = 3, flammable = 4, plant = 1, flora = 1, attached_node = 1,
		not_in_creative_inventory = 1, growing = 1 },
	sounds = default.node_sound_leaves_defaults()
}

-- stage 1
minetest.register_node("sandwiches:peanut_1", table.copy(crop_def))

-- stage 2
crop_def.tiles = {"sandwiches_peanut_2.png"}
minetest.register_node("sandwiches:peanut_2", table.copy(crop_def))

-- stage 3
crop_def.tiles = {"sandwiches_peanut_3.png"}
crop_def.drop = {
	items = {
		{items = {'sandwiches:peanuts 2'}, rarity = 1},
		{items = {'sandwiches:peanuts'}, rarity = 2},
	}
}
minetest.register_node("sandwiches:peanut_3", table.copy(crop_def))

-- stage 4
crop_def.tiles = {"sandwiches_peanut_4.png"}
crop_def.drop = {
	items = {
		{items = {'sandwiches:peanuts 4'}, rarity = 1},
		{items = {'sandwiches:peanuts 2'}, rarity = 2},
		{items = {'sandwiches:peanuts'}, rarity = 4},
		{items = {'sandwiches:seed_peanuts 2'}, rarity = 1},
		{items = {'sandwiches:seed_peanuts 2'}, rarity = 3},
	}
}
minetest.register_node("sandwiches:peanut_4", table.copy(crop_def))

-- stage 5 (spreading stage)
-- as the crop grows to the 5th stage, it has less seeds
-- because they are "used" when spreading
crop_def.tiles = {"sandwiches_peanut_5.png"}
crop_def.drop = {
	items = {
		{items = {'sandwiches:peanuts 3'}, rarity = 1},
		{items = {'sandwiches:peanuts 2'}, rarity = 2},
		{items = {'sandwiches:peanuts'}, rarity = 4},
		{items = {'sandwiches:seed_peanuts'}, rarity = 1},
		{items = {'sandwiches:seed_peanuts'}, rarity = 2},
	}
}
minetest.register_node("sandwiches:peanut_5", table.copy(crop_def))

-- stage 6 (final)
-- the plant is "exhausted" from the spreading
crop_def.tiles = {"sandwiches_peanut_6.png"}
crop_def.groups.growing = 0
crop_def.drop = {
	items = {
		{items = {'sandwiches:peanuts 3'}, rarity = 1},
		{items = {'sandwiches:peanuts 2'}, rarity = 2},
		{items = {'sandwiches:peanuts'}, rarity = 4},
		{items = {'sandwiches:seed_peanuts'}, rarity = 1},
		{items = {'sandwiches:seed_peanuts'}, rarity = 4},
	}
}
minetest.register_node("sandwiches:peanut_6", table.copy(crop_def))

minetest.register_abm({
   name = "sandwiches:peanut_spreading_abm",
   nodenames = {"sandwiches:peanut_5"},
   interval = 5,
   chance = 5,
   action = function(pos, node)
      -- Check 3x3x3 nodes around the currently triggered node
      local soil_positions = minetest.find_nodes_in_area_under_air(
         vector.add(pos, -1), vector.add(pos, 1),
         {"farming:soil_wet", "farming:soil"}
      )
      if(next(soil_positions) ~= null) then
        local found_soil_pos = soil_positions[math.random(#soil_positions)]
		found_soil_pos.y = found_soil_pos.y +1
		minetest.set_node(found_soil_pos, {name="sandwiches:peanut_1"})
		if(math.random(10) > 5) then
			minetest.set_node(pos,{name="sandwiches:peanut_6"})
		end
	  end
   end
 })


code:
default
flowers
farming
mobs
moretrees?
ethereal?
bbq?
cucina_vegana?


code: Add Sandwiches to your game! Choose between meat, vegetarian or nutella sandwiches!