├── .gitignore
├── LICENSE
├── Makefile
├── README.md
├── config.h
├── config.mk
├── drw.c
├── drw.h
├── dwm.1
├── dwm.c
├── dwm.png
├── transient.c
├── util.c
└── util.h


/.gitignore:
--------------------------------------------------------------------------------
 1 | .idea/
 2 | .vscode/
 3 | node_modules/
 4 | dist/
 5 | tmp/
 6 | temp/
 7 | logs/
 8 | *.log
 9 | **/dump.rdb
10 | **/.DS_Store
11 | dwm
12 | *.o
13 | 


--------------------------------------------------------------------------------
/LICENSE:
--------------------------------------------------------------------------------
 1 | MIT/X Consortium License
 2 | 
 3 | © 2006-2019 Anselm R Garbe <anselm@garbe.ca>
 4 | © 2006-2009 Jukka Salmi <jukka at salmi dot ch>
 5 | © 2006-2007 Sander van Dijk <a dot h dot vandijk at gmail dot com>
 6 | © 2007-2011 Peter Hartlich <sgkkr at hartlich dot com>
 7 | © 2007-2009 Szabolcs Nagy <nszabolcs at gmail dot com>
 8 | © 2007-2009 Christof Musik <christof at sendfax dot de>
 9 | © 2007-2009 Premysl Hruby <dfenze at gmail dot com>
10 | © 2007-2008 Enno Gottox Boland <gottox at s01 dot de>
11 | © 2008 Martin Hurton <martin dot hurton at gmail dot com>
12 | © 2008 Neale Pickett <neale dot woozle dot org>
13 | © 2009 Mate Nagy <mnagy at port70 dot net>
14 | © 2010-2016 Hiltjo Posthuma <hiltjo@codemadness.org>
15 | © 2010-2012 Connor Lane Smith <cls@lubutu.com>
16 | © 2011 Christoph Lohmann <20h@r-36.net>
17 | © 2015-2016 Quentin Rameau <quinq@fifth.space>
18 | © 2015-2016 Eric Pruitt <eric.pruitt@gmail.com>
19 | © 2016-2017 Markus Teich <markus.teich@stusta.mhn.de>
20 | © 2020-2022 Chris Down <chris@chrisdown.name>
21 | 
22 | Permission is hereby granted, free of charge, to any person obtaining a
23 | copy of this software and associated documentation files (the "Software"),
24 | to deal in the Software without restriction, including without limitation
25 | the rights to use, copy, modify, merge, publish, distribute, sublicense,
26 | and/or sell copies of the Software, and to permit persons to whom the
27 | Software is furnished to do so, subject to the following conditions:
28 | 
29 | The above copyright notice and this permission notice shall be included in
30 | all copies or substantial portions of the Software.
31 | 
32 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
33 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
34 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
35 | THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
36 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
37 | FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
38 | DEALINGS IN THE SOFTWARE.
39 | 


--------------------------------------------------------------------------------
/Makefile:
--------------------------------------------------------------------------------
 1 | # dwm - dynamic window manager
 2 | # See LICENSE file for copyright and license details.
 3 | 
 4 | include config.mk
 5 | 
 6 | SRC = drw.c dwm.c util.c
 7 | OBJ = ${SRC:.c=.o}
 8 | 
 9 | all: options dwm
10 | 
11 | options:
12 | 	@echo dwm build options:
13 | 	@echo "CFLAGS   = ${CFLAGS}"
14 | 	@echo "LDFLAGS  = ${LDFLAGS}"
15 | 	@echo "CC       = ${CC}"
16 | 
17 | .c.o:
18 | 	${CC} -c ${CFLAGS} $<
19 | 
20 | ${OBJ}: config.h config.mk
21 | 
22 | config.h:
23 | 	cp config.def.h $@
24 | 
25 | dwm: ${OBJ}
26 | 	${CC} -o $@ ${OBJ} ${LDFLAGS}
27 | 
28 | clean:
29 | 	rm -f dwm ${OBJ} dwm-${VERSION}.tar.gz
30 | 
31 | dist: clean
32 | 	mkdir -p dwm-${VERSION}
33 | 	cp -R LICENSE Makefile README config.def.h config.mk\
34 | 		dwm.1 drw.h util.h ${SRC} dwm.png transient.c dwm-${VERSION}
35 | 	tar -cf dwm-${VERSION}.tar dwm-${VERSION}
36 | 	gzip dwm-${VERSION}.tar
37 | 	rm -rf dwm-${VERSION}
38 | 
39 | install: all
40 | 	mkdir -p ${DESTDIR}${PREFIX}/bin
41 | 	cp -f dwm ${DESTDIR}${PREFIX}/bin
42 | 	chmod 755 ${DESTDIR}${PREFIX}/bin/dwm
43 | 	mkdir -p ${DESTDIR}${MANPREFIX}/man1
44 | 	sed "s/VERSION/${VERSION}/g" < dwm.1 > ${DESTDIR}${MANPREFIX}/man1/dwm.1
45 | 	chmod 644 ${DESTDIR}${MANPREFIX}/man1/dwm.1
46 | 
47 | uninstall:
48 | 	rm -f ${DESTDIR}${PREFIX}/bin/dwm\
49 | 		${DESTDIR}${MANPREFIX}/man1/dwm.1
50 | 
51 | .PHONY: all options clean dist install uninstall
52 | 


--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
 1 | # DWM教学仓库
 2 | 
 3 | 本文档关联bilibili up [称呼我C先生](https://space.bilibili.com/303522232) 的dwm相关教学视频
 4 | 
 5 | 尽量做到每一期视频对应一个commit
 6 | 
 7 | ## COMMIT 以及 关联视频
 8 | 
 9 | 1. [1.1](https://github.com/yaocccc/dwms/tree/1.1) - [添加新布局grid 和 magicgrid](https://www.bilibili.com/video/BV1UU4y1Y7j1)
10 | 2. [1.2](https://github.com/yaocccc/dwms/tree/1.2) - [配置新窗口在栈的头部还是底部](https://www.bilibili.com/video/BV1gF411P7kA)
11 | 3. [1.3](https://github.com/yaocccc/dwms/tree/1.3) - [实现overview](https://www.bilibili.com/video/BV11U4y1r7YU)
12 | 
13 | ## DOC
14 | 
15 | ### 项目结构
16 | 
17 | ```plaintext
18 | .
19 | ├── config.h       -- 配置文件入口
20 | ├── config.mk      -- make相关的配置 一般不需要更改
21 | ├── dwm.c          -- 具体业务逻辑
22 | ├── drw.c          -- 和draw绘制相关的一些实现
23 | ├── drw.h          -- 和draw绘制相关的一些头
24 | ├── dwm.png        -- 图标
25 | ├── LICENSE        -- 版本说明等
26 | ├── Makefile       -- makefile
27 | ├── README.md      -- 项目说明文件
28 | ├── transient.c    -- 工具类
29 | ├── util.c         -- 工具类
30 | └── util.h         -- 工具类
31 | ```
32 | 


--------------------------------------------------------------------------------
/config.h:
--------------------------------------------------------------------------------
  1 | /* See LICENSE file for copyright and license details. */
  2 | 
  3 | /* appearance */
  4 | static const int newclientathead    = 0;        /* 定义新窗口在栈顶还是栈底 */
  5 | static const unsigned int borderpx  = 1;        /* border pixel of windows */
  6 | static const unsigned int snap      = 32;       /* snap pixel */
  7 | static const int showbar            = 1;        /* 0 means no bar */
  8 | static const int topbar             = 1;        /* 0 means bottom bar */
  9 | static const char *fonts[]          = { "monospace:size=10" };
 10 | static const char dmenufont[]       = "monospace:size=10";
 11 | static const char col_gray1[]       = "#222222";
 12 | static const char col_gray2[]       = "#444444";
 13 | static const char col_gray3[]       = "#bbbbbb";
 14 | static const char col_gray4[]       = "#eeeeee";
 15 | static const char col_cyan[]        = "#005577";
 16 | static const char *colors[][3]      = {
 17 | 	/*               fg         bg         border   */
 18 | 	[SchemeNorm] = { col_gray3, col_gray1, col_gray2 },
 19 | 	[SchemeSel]  = { col_gray4, col_cyan,  col_cyan  },
 20 | };
 21 | 
 22 | /* tagging */
 23 | static const char *tags[] = { "1", "2", "3", "4", "5", "6", "7", "8", "9" };
 24 | 
 25 | static const int overviewgappi           = 24;        /* overview时 窗口与边缘 缝隙大小 */
 26 | static const int overviewgappo           = 60;        /* overview时 窗口与窗口 缝隙大小 */
 27 | static const char *overviewtag = "OVERVIEW";
 28 | static const Layout overviewlayout = { "",  overview };
 29 | 
 30 | static const Rule rules[] = {
 31 | 	/* xprop(1):
 32 | 	 *	WM_CLASS(STRING) = instance, class
 33 | 	 *	WM_NAME(STRING) = title
 34 | 	 */
 35 | 	/* class      instance    title       tags mask     isfloating   monitor */
 36 | 	{ "Gimp",     NULL,       NULL,       0,            1,           -1 },
 37 | 	{ "Firefox",  NULL,       NULL,       1 << 8,       0,           -1 },
 38 | 	{ "float",    NULL,       NULL,       0,            1,           -1 },
 39 | };
 40 | 
 41 | /* layout(s) */
 42 | static const float mfact     = 0.55; /* factor of master area size [0.05..0.95] */
 43 | static const int nmaster     = 1;    /* number of clients in master area */
 44 | static const int resizehints = 1;    /* 1 means respect size hints in tiled resizals */
 45 | static const int lockfullscreen = 1; /* 1 will force focus on the fullscreen window */
 46 | 
 47 | static const Layout layouts[] = {
 48 | 	/* symbol     arrange function */
 49 | 	{ "[]=",      tile },    /* first entry is default */
 50 | 	{ "><>",      NULL },    /* no layout function means floating behavior */
 51 | 	{ "[M]",      monocle },
 52 | 	{ "[G]",      magicgrid },
 53 | };
 54 | 
 55 | /* key definitions */
 56 | #define MODKEY Mod1Mask // Mod4Mask is the super key [win]
 57 | #define TAGKEYS(KEY,TAG) \
 58 | 	{ MODKEY,                       KEY,      view,           {.ui = 1 << TAG} }, \
 59 | 	{ MODKEY|ControlMask,           KEY,      toggleview,     {.ui = 1 << TAG} }, \
 60 | 	{ MODKEY|ShiftMask,             KEY,      tag,            {.ui = 1 << TAG} }, \
 61 | 	{ MODKEY|ControlMask|ShiftMask, KEY,      toggletag,      {.ui = 1 << TAG} },
 62 | 
 63 | /* helper for spawning shell commands in the pre dwm-5.0 fashion */
 64 | #define SHCMD(cmd) { .v = (const char*[]){ "/bin/sh", "-c", cmd, NULL } }
 65 | 
 66 | /* commands */
 67 | static char dmenumon[2] = "0"; /* component of dmenucmd, manipulated in spawn() */
 68 | static const char *dmenucmd[] = { "dmenu_run", "-m", dmenumon, "-fn", dmenufont, "-nb", col_gray1, "-nf", col_gray3, "-sb", col_cyan, "-sf", col_gray4, NULL };
 69 | static const char *termcmd[]  = { "st", NULL };
 70 | 
 71 | static Key keys[] = {
 72 | 	/* modifier                     key        function        argument */
 73 | 	{ MODKEY,                       XK_a,      toggleoverview, {0} },
 74 | 	{ MODKEY,                       XK_p,      spawn,          {.v = dmenucmd } },
 75 | 	{ MODKEY|ShiftMask,             XK_Return, spawn,          {.v = termcmd } },
 76 | 	{ MODKEY,                       XK_b,      togglebar,      {0} },
 77 | 	{ MODKEY,                       XK_j,      focusstack,     {.i = +1 } },
 78 | 	{ MODKEY,                       XK_k,      focusstack,     {.i = -1 } },
 79 | 	{ MODKEY,                       XK_i,      incnmaster,     {.i = +1 } },
 80 | 	{ MODKEY,                       XK_d,      incnmaster,     {.i = -1 } },
 81 | 	{ MODKEY,                       XK_h,      setmfact,       {.f = -0.05} },
 82 | 	{ MODKEY,                       XK_l,      setmfact,       {.f = +0.05} },
 83 | 	{ MODKEY,                       XK_Return, zoom,           {0} },
 84 | 	{ MODKEY,                       XK_Tab,    view,           {0} },
 85 | 	{ MODKEY|ShiftMask,             XK_c,      killclient,     {0} },
 86 | 	{ MODKEY,                       XK_t,      setlayout,      {.v = &layouts[0]} },
 87 | 	{ MODKEY,                       XK_f,      setlayout,      {.v = &layouts[1]} },
 88 | 	{ MODKEY,                       XK_m,      setlayout,      {.v = &layouts[2]} },
 89 | 	{ MODKEY,                       XK_g,      setlayout,      {.v = &layouts[3]} },
 90 | 	{ MODKEY,                       XK_space,  setlayout,      {0} },
 91 | 	{ MODKEY|ShiftMask,             XK_space,  togglefloating, {0} },
 92 | 	{ MODKEY,                       XK_0,      view,           {.ui = ~0 } },
 93 | 	{ MODKEY|ShiftMask,             XK_0,      tag,            {.ui = ~0 } },
 94 | 	{ MODKEY,                       XK_comma,  focusmon,       {.i = -1 } },
 95 | 	{ MODKEY,                       XK_period, focusmon,       {.i = +1 } },
 96 | 	{ MODKEY|ShiftMask,             XK_comma,  tagmon,         {.i = -1 } },
 97 | 	{ MODKEY|ShiftMask,             XK_period, tagmon,         {.i = +1 } },
 98 | 	TAGKEYS(                        XK_1,                      0)
 99 | 	TAGKEYS(                        XK_2,                      1)
100 | 	TAGKEYS(                        XK_3,                      2)
101 | 	TAGKEYS(                        XK_4,                      3)
102 | 	TAGKEYS(                        XK_5,                      4)
103 | 	TAGKEYS(                        XK_6,                      5)
104 | 	TAGKEYS(                        XK_7,                      6)
105 | 	TAGKEYS(                        XK_8,                      7)
106 | 	TAGKEYS(                        XK_9,                      8)
107 | 	{ MODKEY|ShiftMask,             XK_q,      quit,           {0} },
108 | };
109 | 
110 | /* button definitions */
111 | /* click can be ClkTagBar, ClkLtSymbol, ClkStatusText, ClkWinTitle, ClkClientWin, or ClkRootWin */
112 | static Button buttons[] = {
113 | 	/* click                event mask      button          function        argument */
114 | 	{ ClkLtSymbol,          0,              Button1,        setlayout,      {0} },
115 | 	{ ClkLtSymbol,          0,              Button3,        setlayout,      {.v = &layouts[2]} },
116 | 	{ ClkWinTitle,          0,              Button2,        zoom,           {0} },
117 | 	{ ClkStatusText,        0,              Button2,        spawn,          {.v = termcmd } },
118 | 	{ ClkClientWin,         MODKEY,         Button1,        movemouse,      {0} },
119 | 	{ ClkClientWin,         MODKEY,         Button2,        togglefloating, {0} },
120 | 	{ ClkClientWin,         MODKEY,         Button3,        resizemouse,    {0} },
121 | 	{ ClkTagBar,            0,              Button1,        view,           {0} },
122 | 	{ ClkTagBar,            0,              Button3,        toggleview,     {0} },
123 | 	{ ClkTagBar,            MODKEY,         Button1,        tag,            {0} },
124 | 	{ ClkTagBar,            MODKEY,         Button3,        toggletag,      {0} },
125 | };
126 | 
127 | 


--------------------------------------------------------------------------------
/config.mk:
--------------------------------------------------------------------------------
 1 | # dwm version
 2 | VERSION = 6.3
 3 | 
 4 | # Customize below to fit your system
 5 | 
 6 | # paths
 7 | PREFIX = /usr/local
 8 | MANPREFIX = ${PREFIX}/share/man
 9 | 
10 | X11INC = /usr/X11R6/include
11 | X11LIB = /usr/X11R6/lib
12 | 
13 | # Xinerama, comment if you don't want it
14 | XINERAMALIBS  = -lXinerama
15 | XINERAMAFLAGS = -DXINERAMA
16 | 
17 | # freetype
18 | FREETYPELIBS = -lfontconfig -lXft
19 | FREETYPEINC = /usr/include/freetype2
20 | # OpenBSD (uncomment)
21 | #FREETYPEINC = ${X11INC}/freetype2
22 | #MANPREFIX = ${PREFIX}/man
23 | 
24 | # includes and libs
25 | INCS = -I${X11INC} -I${FREETYPEINC}
26 | LIBS = -L${X11LIB} -lX11 ${XINERAMALIBS} ${FREETYPELIBS}
27 | 
28 | # flags
29 | CPPFLAGS = -D_DEFAULT_SOURCE -D_BSD_SOURCE -D_POSIX_C_SOURCE=200809L -DVERSION=\"${VERSION}\" ${XINERAMAFLAGS}
30 | #CFLAGS   = -g -std=c99 -pedantic -Wall -O0 ${INCS} ${CPPFLAGS}
31 | CFLAGS   = -std=c99 -pedantic -Wall -Wno-deprecated-declarations -Os ${INCS} ${CPPFLAGS}
32 | LDFLAGS  = ${LIBS}
33 | 
34 | # Solaris
35 | #CFLAGS = -fast ${INCS} -DVERSION=\"${VERSION}\"
36 | #LDFLAGS = ${LIBS}
37 | 
38 | # compiler and linker
39 | CC = cc
40 | 


--------------------------------------------------------------------------------
/drw.c:
--------------------------------------------------------------------------------
  1 | /* See LICENSE file for copyright and license details. */
  2 | #include <stdio.h>
  3 | #include <stdlib.h>
  4 | #include <string.h>
  5 | #include <X11/Xlib.h>
  6 | #include <X11/Xft/Xft.h>
  7 | 
  8 | #include "drw.h"
  9 | #include "util.h"
 10 | 
 11 | #define UTF_INVALID 0xFFFD
 12 | #define UTF_SIZ     4
 13 | 
 14 | static const unsigned char utfbyte[UTF_SIZ + 1] = {0x80,    0, 0xC0, 0xE0, 0xF0};
 15 | static const unsigned char utfmask[UTF_SIZ + 1] = {0xC0, 0x80, 0xE0, 0xF0, 0xF8};
 16 | static const long utfmin[UTF_SIZ + 1] = {       0,    0,  0x80,  0x800,  0x10000};
 17 | static const long utfmax[UTF_SIZ + 1] = {0x10FFFF, 0x7F, 0x7FF, 0xFFFF, 0x10FFFF};
 18 | 
 19 | static long
 20 | utf8decodebyte(const char c, size_t *i)
 21 | {
 22 | 	for (*i = 0; *i < (UTF_SIZ + 1); ++(*i))
 23 | 		if (((unsigned char)c & utfmask[*i]) == utfbyte[*i])
 24 | 			return (unsigned char)c & ~utfmask[*i];
 25 | 	return 0;
 26 | }
 27 | 
 28 | static size_t
 29 | utf8validate(long *u, size_t i)
 30 | {
 31 | 	if (!BETWEEN(*u, utfmin[i], utfmax[i]) || BETWEEN(*u, 0xD800, 0xDFFF))
 32 | 		*u = UTF_INVALID;
 33 | 	for (i = 1; *u > utfmax[i]; ++i)
 34 | 		;
 35 | 	return i;
 36 | }
 37 | 
 38 | static size_t
 39 | utf8decode(const char *c, long *u, size_t clen)
 40 | {
 41 | 	size_t i, j, len, type;
 42 | 	long udecoded;
 43 | 
 44 | 	*u = UTF_INVALID;
 45 | 	if (!clen)
 46 | 		return 0;
 47 | 	udecoded = utf8decodebyte(c[0], &len);
 48 | 	if (!BETWEEN(len, 1, UTF_SIZ))
 49 | 		return 1;
 50 | 	for (i = 1, j = 1; i < clen && j < len; ++i, ++j) {
 51 | 		udecoded = (udecoded << 6) | utf8decodebyte(c[i], &type);
 52 | 		if (type)
 53 | 			return j;
 54 | 	}
 55 | 	if (j < len)
 56 | 		return 0;
 57 | 	*u = udecoded;
 58 | 	utf8validate(u, len);
 59 | 
 60 | 	return len;
 61 | }
 62 | 
 63 | Drw *
 64 | drw_create(Display *dpy, int screen, Window root, unsigned int w, unsigned int h)
 65 | {
 66 | 	Drw *drw = ecalloc(1, sizeof(Drw));
 67 | 
 68 | 	drw->dpy = dpy;
 69 | 	drw->screen = screen;
 70 | 	drw->root = root;
 71 | 	drw->w = w;
 72 | 	drw->h = h;
 73 | 	drw->drawable = XCreatePixmap(dpy, root, w, h, DefaultDepth(dpy, screen));
 74 | 	drw->gc = XCreateGC(dpy, root, 0, NULL);
 75 | 	XSetLineAttributes(dpy, drw->gc, 1, LineSolid, CapButt, JoinMiter);
 76 | 
 77 | 	return drw;
 78 | }
 79 | 
 80 | void
 81 | drw_resize(Drw *drw, unsigned int w, unsigned int h)
 82 | {
 83 | 	if (!drw)
 84 | 		return;
 85 | 
 86 | 	drw->w = w;
 87 | 	drw->h = h;
 88 | 	if (drw->drawable)
 89 | 		XFreePixmap(drw->dpy, drw->drawable);
 90 | 	drw->drawable = XCreatePixmap(drw->dpy, drw->root, w, h, DefaultDepth(drw->dpy, drw->screen));
 91 | }
 92 | 
 93 | void
 94 | drw_free(Drw *drw)
 95 | {
 96 | 	XFreePixmap(drw->dpy, drw->drawable);
 97 | 	XFreeGC(drw->dpy, drw->gc);
 98 | 	drw_fontset_free(drw->fonts);
 99 | 	free(drw);
100 | }
101 | 
102 | /* This function is an implementation detail. Library users should use
103 |  * drw_fontset_create instead.
104 |  */
105 | static Fnt *
106 | xfont_create(Drw *drw, const char *fontname, FcPattern *fontpattern)
107 | {
108 | 	Fnt *font;
109 | 	XftFont *xfont = NULL;
110 | 	FcPattern *pattern = NULL;
111 | 
112 | 	if (fontname) {
113 | 		/* Using the pattern found at font->xfont->pattern does not yield the
114 | 		 * same substitution results as using the pattern returned by
115 | 		 * FcNameParse; using the latter results in the desired fallback
116 | 		 * behaviour whereas the former just results in missing-character
117 | 		 * rectangles being drawn, at least with some fonts. */
118 | 		if (!(xfont = XftFontOpenName(drw->dpy, drw->screen, fontname))) {
119 | 			fprintf(stderr, "error, cannot load font from name: '%s'\n", fontname);
120 | 			return NULL;
121 | 		}
122 | 		if (!(pattern = FcNameParse((FcChar8 *) fontname))) {
123 | 			fprintf(stderr, "error, cannot parse font name to pattern: '%s'\n", fontname);
124 | 			XftFontClose(drw->dpy, xfont);
125 | 			return NULL;
126 | 		}
127 | 	} else if (fontpattern) {
128 | 		if (!(xfont = XftFontOpenPattern(drw->dpy, fontpattern))) {
129 | 			fprintf(stderr, "error, cannot load font from pattern.\n");
130 | 			return NULL;
131 | 		}
132 | 	} else {
133 | 		die("no font specified.");
134 | 	}
135 | 
136 | 	/* Do not allow using color fonts. This is a workaround for a BadLength
137 | 	 * error from Xft with color glyphs. Modelled on the Xterm workaround. See
138 | 	 * https://bugzilla.redhat.com/show_bug.cgi?id=1498269
139 | 	 * https://lists.suckless.org/dev/1701/30932.html
140 | 	 * https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=916349
141 | 	 * and lots more all over the internet.
142 | 	 */
143 | 	FcBool iscol;
144 | 	if(FcPatternGetBool(xfont->pattern, FC_COLOR, 0, &iscol) == FcResultMatch && iscol) {
145 | 		XftFontClose(drw->dpy, xfont);
146 | 		return NULL;
147 | 	}
148 | 
149 | 	font = ecalloc(1, sizeof(Fnt));
150 | 	font->xfont = xfont;
151 | 	font->pattern = pattern;
152 | 	font->h = xfont->ascent + xfont->descent;
153 | 	font->dpy = drw->dpy;
154 | 
155 | 	return font;
156 | }
157 | 
158 | static void
159 | xfont_free(Fnt *font)
160 | {
161 | 	if (!font)
162 | 		return;
163 | 	if (font->pattern)
164 | 		FcPatternDestroy(font->pattern);
165 | 	XftFontClose(font->dpy, font->xfont);
166 | 	free(font);
167 | }
168 | 
169 | Fnt*
170 | drw_fontset_create(Drw* drw, const char *fonts[], size_t fontcount)
171 | {
172 | 	Fnt *cur, *ret = NULL;
173 | 	size_t i;
174 | 
175 | 	if (!drw || !fonts)
176 | 		return NULL;
177 | 
178 | 	for (i = 1; i <= fontcount; i++) {
179 | 		if ((cur = xfont_create(drw, fonts[fontcount - i], NULL))) {
180 | 			cur->next = ret;
181 | 			ret = cur;
182 | 		}
183 | 	}
184 | 	return (drw->fonts = ret);
185 | }
186 | 
187 | void
188 | drw_fontset_free(Fnt *font)
189 | {
190 | 	if (font) {
191 | 		drw_fontset_free(font->next);
192 | 		xfont_free(font);
193 | 	}
194 | }
195 | 
196 | void
197 | drw_clr_create(Drw *drw, Clr *dest, const char *clrname)
198 | {
199 | 	if (!drw || !dest || !clrname)
200 | 		return;
201 | 
202 | 	if (!XftColorAllocName(drw->dpy, DefaultVisual(drw->dpy, drw->screen),
203 | 	                       DefaultColormap(drw->dpy, drw->screen),
204 | 	                       clrname, dest))
205 | 		die("error, cannot allocate color '%s'", clrname);
206 | }
207 | 
208 | /* Wrapper to create color schemes. The caller has to call free(3) on the
209 |  * returned color scheme when done using it. */
210 | Clr *
211 | drw_scm_create(Drw *drw, const char *clrnames[], size_t clrcount)
212 | {
213 | 	size_t i;
214 | 	Clr *ret;
215 | 
216 | 	/* need at least two colors for a scheme */
217 | 	if (!drw || !clrnames || clrcount < 2 || !(ret = ecalloc(clrcount, sizeof(XftColor))))
218 | 		return NULL;
219 | 
220 | 	for (i = 0; i < clrcount; i++)
221 | 		drw_clr_create(drw, &ret[i], clrnames[i]);
222 | 	return ret;
223 | }
224 | 
225 | void
226 | drw_setfontset(Drw *drw, Fnt *set)
227 | {
228 | 	if (drw)
229 | 		drw->fonts = set;
230 | }
231 | 
232 | void
233 | drw_setscheme(Drw *drw, Clr *scm)
234 | {
235 | 	if (drw)
236 | 		drw->scheme = scm;
237 | }
238 | 
239 | void
240 | drw_rect(Drw *drw, int x, int y, unsigned int w, unsigned int h, int filled, int invert)
241 | {
242 | 	if (!drw || !drw->scheme)
243 | 		return;
244 | 	XSetForeground(drw->dpy, drw->gc, invert ? drw->scheme[ColBg].pixel : drw->scheme[ColFg].pixel);
245 | 	if (filled)
246 | 		XFillRectangle(drw->dpy, drw->drawable, drw->gc, x, y, w, h);
247 | 	else
248 | 		XDrawRectangle(drw->dpy, drw->drawable, drw->gc, x, y, w - 1, h - 1);
249 | }
250 | 
251 | int
252 | drw_text(Drw *drw, int x, int y, unsigned int w, unsigned int h, unsigned int lpad, const char *text, int invert)
253 | {
254 | 	int i, ty, ellipsis_x = 0;
255 | 	unsigned int tmpw, ew, ellipsis_w = 0, ellipsis_len;
256 | 	XftDraw *d = NULL;
257 | 	Fnt *usedfont, *curfont, *nextfont;
258 | 	int utf8strlen, utf8charlen, render = x || y || w || h;
259 | 	long utf8codepoint = 0;
260 | 	const char *utf8str;
261 | 	FcCharSet *fccharset;
262 | 	FcPattern *fcpattern;
263 | 	FcPattern *match;
264 | 	XftResult result;
265 | 	int charexists = 0, overflow = 0;
266 | 	/* keep track of a couple codepoints for which we have no match. */
267 | 	enum { nomatches_len = 64 };
268 | 	static struct { long codepoint[nomatches_len]; unsigned int idx; } nomatches;
269 | 	static unsigned int ellipsis_width = 0;
270 | 
271 | 	if (!drw || (render && (!drw->scheme || !w)) || !text || !drw->fonts)
272 | 		return 0;
273 | 
274 | 	if (!render) {
275 | 		w = invert ? invert : ~invert;
276 | 	} else {
277 | 		XSetForeground(drw->dpy, drw->gc, drw->scheme[invert ? ColFg : ColBg].pixel);
278 | 		XFillRectangle(drw->dpy, drw->drawable, drw->gc, x, y, w, h);
279 | 		d = XftDrawCreate(drw->dpy, drw->drawable,
280 | 		                  DefaultVisual(drw->dpy, drw->screen),
281 | 		                  DefaultColormap(drw->dpy, drw->screen));
282 | 		x += lpad;
283 | 		w -= lpad;
284 | 	}
285 | 
286 | 	usedfont = drw->fonts;
287 | 	if (!ellipsis_width && render)
288 | 		ellipsis_width = drw_fontset_getwidth(drw, "...");
289 | 	while (1) {
290 | 		ew = ellipsis_len = utf8strlen = 0;
291 | 		utf8str = text;
292 | 		nextfont = NULL;
293 | 		while (*text) {
294 | 			utf8charlen = utf8decode(text, &utf8codepoint, UTF_SIZ);
295 | 			for (curfont = drw->fonts; curfont; curfont = curfont->next) {
296 | 				charexists = charexists || XftCharExists(drw->dpy, curfont->xfont, utf8codepoint);
297 | 				if (charexists) {
298 | 					drw_font_getexts(curfont, text, utf8charlen, &tmpw, NULL);
299 | 					if (ew + ellipsis_width <= w) {
300 | 						/* keep track where the ellipsis still fits */
301 | 						ellipsis_x = x + ew;
302 | 						ellipsis_w = w - ew;
303 | 						ellipsis_len = utf8strlen;
304 | 					}
305 | 
306 | 					if (ew + tmpw > w) {
307 | 						overflow = 1;
308 | 						/* called from drw_fontset_getwidth_clamp():
309 | 						 * it wants the width AFTER the overflow
310 | 						 */
311 | 						if (!render)
312 | 							x += tmpw;
313 | 						else
314 | 							utf8strlen = ellipsis_len;
315 | 					} else if (curfont == usedfont) {
316 | 						utf8strlen += utf8charlen;
317 | 						text += utf8charlen;
318 | 						ew += tmpw;
319 | 					} else {
320 | 						nextfont = curfont;
321 | 					}
322 | 					break;
323 | 				}
324 | 			}
325 | 
326 | 			if (overflow || !charexists || nextfont)
327 | 				break;
328 | 			else
329 | 				charexists = 0;
330 | 		}
331 | 
332 | 		if (utf8strlen) {
333 | 			if (render) {
334 | 				ty = y + (h - usedfont->h) / 2 + usedfont->xfont->ascent;
335 | 				XftDrawStringUtf8(d, &drw->scheme[invert ? ColBg : ColFg],
336 | 				                  usedfont->xfont, x, ty, (XftChar8 *)utf8str, utf8strlen);
337 | 			}
338 | 			x += ew;
339 | 			w -= ew;
340 | 		}
341 | 		if (render && overflow)
342 | 			drw_text(drw, ellipsis_x, y, ellipsis_w, h, 0, "...", invert);
343 | 
344 | 		if (!*text || overflow) {
345 | 			break;
346 | 		} else if (nextfont) {
347 | 			charexists = 0;
348 | 			usedfont = nextfont;
349 | 		} else {
350 | 			/* Regardless of whether or not a fallback font is found, the
351 | 			 * character must be drawn. */
352 | 			charexists = 1;
353 | 
354 | 			for (i = 0; i < nomatches_len; ++i) {
355 | 				/* avoid calling XftFontMatch if we know we won't find a match */
356 | 				if (utf8codepoint == nomatches.codepoint[i])
357 | 					goto no_match;
358 | 			}
359 | 
360 | 			fccharset = FcCharSetCreate();
361 | 			FcCharSetAddChar(fccharset, utf8codepoint);
362 | 
363 | 			if (!drw->fonts->pattern) {
364 | 				/* Refer to the comment in xfont_create for more information. */
365 | 				die("the first font in the cache must be loaded from a font string.");
366 | 			}
367 | 
368 | 			fcpattern = FcPatternDuplicate(drw->fonts->pattern);
369 | 			FcPatternAddCharSet(fcpattern, FC_CHARSET, fccharset);
370 | 			FcPatternAddBool(fcpattern, FC_SCALABLE, FcTrue);
371 | 			FcPatternAddBool(fcpattern, FC_COLOR, FcFalse);
372 | 
373 | 			FcConfigSubstitute(NULL, fcpattern, FcMatchPattern);
374 | 			FcDefaultSubstitute(fcpattern);
375 | 			match = XftFontMatch(drw->dpy, drw->screen, fcpattern, &result);
376 | 
377 | 			FcCharSetDestroy(fccharset);
378 | 			FcPatternDestroy(fcpattern);
379 | 
380 | 			if (match) {
381 | 				usedfont = xfont_create(drw, NULL, match);
382 | 				if (usedfont && XftCharExists(drw->dpy, usedfont->xfont, utf8codepoint)) {
383 | 					for (curfont = drw->fonts; curfont->next; curfont = curfont->next)
384 | 						; /* NOP */
385 | 					curfont->next = usedfont;
386 | 				} else {
387 | 					xfont_free(usedfont);
388 | 					nomatches.codepoint[++nomatches.idx % nomatches_len] = utf8codepoint;
389 | no_match:
390 | 					usedfont = drw->fonts;
391 | 				}
392 | 			}
393 | 		}
394 | 	}
395 | 	if (d)
396 | 		XftDrawDestroy(d);
397 | 
398 | 	return x + (render ? w : 0);
399 | }
400 | 
401 | void
402 | drw_map(Drw *drw, Window win, int x, int y, unsigned int w, unsigned int h)
403 | {
404 | 	if (!drw)
405 | 		return;
406 | 
407 | 	XCopyArea(drw->dpy, drw->drawable, win, drw->gc, x, y, w, h, x, y);
408 | 	XSync(drw->dpy, False);
409 | }
410 | 
411 | unsigned int
412 | drw_fontset_getwidth(Drw *drw, const char *text)
413 | {
414 | 	if (!drw || !drw->fonts || !text)
415 | 		return 0;
416 | 	return drw_text(drw, 0, 0, 0, 0, 0, text, 0);
417 | }
418 | 
419 | unsigned int
420 | drw_fontset_getwidth_clamp(Drw *drw, const char *text, unsigned int n)
421 | {
422 | 	unsigned int tmp = 0;
423 | 	if (drw && drw->fonts && text && n)
424 | 		tmp = drw_text(drw, 0, 0, 0, 0, 0, text, n);
425 | 	return MIN(n, tmp);
426 | }
427 | 
428 | void
429 | drw_font_getexts(Fnt *font, const char *text, unsigned int len, unsigned int *w, unsigned int *h)
430 | {
431 | 	XGlyphInfo ext;
432 | 
433 | 	if (!font || !text)
434 | 		return;
435 | 
436 | 	XftTextExtentsUtf8(font->dpy, font->xfont, (XftChar8 *)text, len, &ext);
437 | 	if (w)
438 | 		*w = ext.xOff;
439 | 	if (h)
440 | 		*h = font->h;
441 | }
442 | 
443 | Cur *
444 | drw_cur_create(Drw *drw, int shape)
445 | {
446 | 	Cur *cur;
447 | 
448 | 	if (!drw || !(cur = ecalloc(1, sizeof(Cur))))
449 | 		return NULL;
450 | 
451 | 	cur->cursor = XCreateFontCursor(drw->dpy, shape);
452 | 
453 | 	return cur;
454 | }
455 | 
456 | void
457 | drw_cur_free(Drw *drw, Cur *cursor)
458 | {
459 | 	if (!cursor)
460 | 		return;
461 | 
462 | 	XFreeCursor(drw->dpy, cursor->cursor);
463 | 	free(cursor);
464 | }
465 | 


--------------------------------------------------------------------------------
/drw.h:
--------------------------------------------------------------------------------
 1 | /* See LICENSE file for copyright and license details. */
 2 | 
 3 | typedef struct {
 4 | 	Cursor cursor;
 5 | } Cur;
 6 | 
 7 | typedef struct Fnt {
 8 | 	Display *dpy;
 9 | 	unsigned int h;
10 | 	XftFont *xfont;
11 | 	FcPattern *pattern;
12 | 	struct Fnt *next;
13 | } Fnt;
14 | 
15 | enum { ColFg, ColBg, ColBorder }; /* Clr scheme index */
16 | typedef XftColor Clr;
17 | 
18 | typedef struct {
19 | 	unsigned int w, h;
20 | 	Display *dpy;
21 | 	int screen;
22 | 	Window root;
23 | 	Drawable drawable;
24 | 	GC gc;
25 | 	Clr *scheme;
26 | 	Fnt *fonts;
27 | } Drw;
28 | 
29 | /* Drawable abstraction */
30 | Drw *drw_create(Display *dpy, int screen, Window win, unsigned int w, unsigned int h);
31 | void drw_resize(Drw *drw, unsigned int w, unsigned int h);
32 | void drw_free(Drw *drw);
33 | 
34 | /* Fnt abstraction */
35 | Fnt *drw_fontset_create(Drw* drw, const char *fonts[], size_t fontcount);
36 | void drw_fontset_free(Fnt* set);
37 | unsigned int drw_fontset_getwidth(Drw *drw, const char *text);
38 | unsigned int drw_fontset_getwidth_clamp(Drw *drw, const char *text, unsigned int n);
39 | void drw_font_getexts(Fnt *font, const char *text, unsigned int len, unsigned int *w, unsigned int *h);
40 | 
41 | /* Colorscheme abstraction */
42 | void drw_clr_create(Drw *drw, Clr *dest, const char *clrname);
43 | Clr *drw_scm_create(Drw *drw, const char *clrnames[], size_t clrcount);
44 | 
45 | /* Cursor abstraction */
46 | Cur *drw_cur_create(Drw *drw, int shape);
47 | void drw_cur_free(Drw *drw, Cur *cursor);
48 | 
49 | /* Drawing context manipulation */
50 | void drw_setfontset(Drw *drw, Fnt *set);
51 | void drw_setscheme(Drw *drw, Clr *scm);
52 | 
53 | /* Drawing functions */
54 | void drw_rect(Drw *drw, int x, int y, unsigned int w, unsigned int h, int filled, int invert);
55 | int drw_text(Drw *drw, int x, int y, unsigned int w, unsigned int h, unsigned int lpad, const char *text, int invert);
56 | 
57 | /* Map functions */
58 | void drw_map(Drw *drw, Window win, int x, int y, unsigned int w, unsigned int h);
59 | 


--------------------------------------------------------------------------------
/dwm.1:
--------------------------------------------------------------------------------
  1 | .TH DWM 1 dwm\-VERSION
  2 | .SH NAME
  3 | dwm \- dynamic window manager
  4 | .SH SYNOPSIS
  5 | .B dwm
  6 | .RB [ \-v ]
  7 | .SH DESCRIPTION
  8 | dwm is a dynamic window manager for X. It manages windows in tiled, monocle
  9 | and floating layouts. Either layout can be applied dynamically, optimising the
 10 | environment for the application in use and the task performed.
 11 | .P
 12 | In tiled layouts windows are managed in a master and stacking area. The master
 13 | area on the left contains one window by default, and the stacking area on the
 14 | right contains all other windows. The number of master area windows can be
 15 | adjusted from zero to an arbitrary number. In monocle layout all windows are
 16 | maximised to the screen size. In floating layout windows can be resized and
 17 | moved freely. Dialog windows are always managed floating, regardless of the
 18 | layout applied.
 19 | .P
 20 | Windows are grouped by tags. Each window can be tagged with one or multiple
 21 | tags. Selecting certain tags displays all windows with these tags.
 22 | .P
 23 | Each screen contains a small status bar which displays all available tags, the
 24 | layout, the title of the focused window, and the text read from the root window
 25 | name property, if the screen is focused. A floating window is indicated with an
 26 | empty square and a maximised floating window is indicated with a filled square
 27 | before the windows title.  The selected tags are indicated with a different
 28 | color. The tags of the focused window are indicated with a filled square in the
 29 | top left corner.  The tags which are applied to one or more windows are
 30 | indicated with an empty square in the top left corner.
 31 | .P
 32 | dwm draws a small border around windows to indicate the focus state.
 33 | .SH OPTIONS
 34 | .TP
 35 | .B \-v
 36 | prints version information to stderr, then exits.
 37 | .SH USAGE
 38 | .SS Status bar
 39 | .TP
 40 | .B X root window name
 41 | is read and displayed in the status text area. It can be set with the
 42 | .BR xsetroot (1)
 43 | command.
 44 | .TP
 45 | .B Button1
 46 | click on a tag label to display all windows with that tag, click on the layout
 47 | label toggles between tiled and floating layout.
 48 | .TP
 49 | .B Button3
 50 | click on a tag label adds/removes all windows with that tag to/from the view.
 51 | .TP
 52 | .B Mod1\-Button1
 53 | click on a tag label applies that tag to the focused window.
 54 | .TP
 55 | .B Mod1\-Button3
 56 | click on a tag label adds/removes that tag to/from the focused window.
 57 | .SS Keyboard commands
 58 | .TP
 59 | .B Mod1\-Shift\-Return
 60 | Start
 61 | .BR st(1).
 62 | .TP
 63 | .B Mod1\-p
 64 | Spawn
 65 | .BR dmenu(1)
 66 | for launching other programs.
 67 | .TP
 68 | .B Mod1\-,
 69 | Focus previous screen, if any.
 70 | .TP
 71 | .B Mod1\-.
 72 | Focus next screen, if any.
 73 | .TP
 74 | .B Mod1\-Shift\-,
 75 | Send focused window to previous screen, if any.
 76 | .TP
 77 | .B Mod1\-Shift\-.
 78 | Send focused window to next screen, if any.
 79 | .TP
 80 | .B Mod1\-b
 81 | Toggles bar on and off.
 82 | .TP
 83 | .B Mod1\-t
 84 | Sets tiled layout.
 85 | .TP
 86 | .B Mod1\-f
 87 | Sets floating layout.
 88 | .TP
 89 | .B Mod1\-m
 90 | Sets monocle layout.
 91 | .TP
 92 | .B Mod1\-space
 93 | Toggles between current and previous layout.
 94 | .TP
 95 | .B Mod1\-j
 96 | Focus next window.
 97 | .TP
 98 | .B Mod1\-k
 99 | Focus previous window.
100 | .TP
101 | .B Mod1\-i
102 | Increase number of windows in master area.
103 | .TP
104 | .B Mod1\-d
105 | Decrease number of windows in master area.
106 | .TP
107 | .B Mod1\-l
108 | Increase master area size.
109 | .TP
110 | .B Mod1\-h
111 | Decrease master area size.
112 | .TP
113 | .B Mod1\-Return
114 | Zooms/cycles focused window to/from master area (tiled layouts only).
115 | .TP
116 | .B Mod1\-Shift\-c
117 | Close focused window.
118 | .TP
119 | .B Mod1\-Shift\-space
120 | Toggle focused window between tiled and floating state.
121 | .TP
122 | .B Mod1\-Tab
123 | Toggles to the previously selected tags.
124 | .TP
125 | .B Mod1\-Shift\-[1..n]
126 | Apply nth tag to focused window.
127 | .TP
128 | .B Mod1\-Shift\-0
129 | Apply all tags to focused window.
130 | .TP
131 | .B Mod1\-Control\-Shift\-[1..n]
132 | Add/remove nth tag to/from focused window.
133 | .TP
134 | .B Mod1\-[1..n]
135 | View all windows with nth tag.
136 | .TP
137 | .B Mod1\-0
138 | View all windows with any tag.
139 | .TP
140 | .B Mod1\-Control\-[1..n]
141 | Add/remove all windows with nth tag to/from the view.
142 | .TP
143 | .B Mod1\-Shift\-q
144 | Quit dwm.
145 | .SS Mouse commands
146 | .TP
147 | .B Mod1\-Button1
148 | Move focused window while dragging. Tiled windows will be toggled to the floating state.
149 | .TP
150 | .B Mod1\-Button2
151 | Toggles focused window between floating and tiled state.
152 | .TP
153 | .B Mod1\-Button3
154 | Resize focused window while dragging. Tiled windows will be toggled to the floating state.
155 | .SH CUSTOMIZATION
156 | dwm is customized by creating a custom config.h and (re)compiling the source
157 | code. This keeps it fast, secure and simple.
158 | .SH SEE ALSO
159 | .BR dmenu (1),
160 | .BR st (1)
161 | .SH ISSUES
162 | Java applications which use the XToolkit/XAWT backend may draw grey windows
163 | only. The XToolkit/XAWT backend breaks ICCCM-compliance in recent JDK 1.5 and early
164 | JDK 1.6 versions, because it assumes a reparenting window manager. Possible workarounds
165 | are using JDK 1.4 (which doesn't contain the XToolkit/XAWT backend) or setting the
166 | environment variable
167 | .BR AWT_TOOLKIT=MToolkit
168 | (to use the older Motif backend instead) or running
169 | .B xprop -root -f _NET_WM_NAME 32a -set _NET_WM_NAME LG3D
170 | or
171 | .B wmname LG3D
172 | (to pretend that a non-reparenting window manager is running that the
173 | XToolkit/XAWT backend can recognize) or when using OpenJDK setting the environment variable
174 | .BR _JAVA_AWT_WM_NONREPARENTING=1 .
175 | .SH BUGS
176 | Send all bug reports with a patch to hackers@suckless.org.
177 | 


--------------------------------------------------------------------------------
/dwm.c:
--------------------------------------------------------------------------------
   1 | /* See LICENSE file for copyright and license details.
   2 |  *
   3 |  * dynamic window manager is designed like any other X client as well. It is
   4 |  * driven through handling X events. In contrast to other X clients, a window
   5 |  * manager selects for SubstructureRedirectMask on the root window, to receive
   6 |  * events about window (dis-)appearance. Only one X connection at a time is
   7 |  * allowed to select for this event mask.
   8 |  *
   9 |  * The event handlers of dwm are organized in an array which is accessed
  10 |  * whenever a new event has been fetched. This allows event dispatching
  11 |  * in O(1) time.
  12 |  *
  13 |  * Each child of the root window is called a client, except windows which have
  14 |  * set the override_redirect flag. Clients are organized in a linked client
  15 |  * list on each monitor, the focus history is remembered through a stack list
  16 |  * on each monitor. Each client contains a bit array to indicate the tags of a
  17 |  * client.
  18 |  *
  19 |  * Keys and tagging rules are organized as arrays and defined in config.h.
  20 |  *
  21 |  * To understand everything else, start reading main().
  22 |  */
  23 | #include <errno.h>
  24 | #include <locale.h>
  25 | #include <signal.h>
  26 | #include <stdarg.h>
  27 | #include <stdio.h>
  28 | #include <stdlib.h>
  29 | #include <string.h>
  30 | #include <unistd.h>
  31 | #include <sys/types.h>
  32 | #include <sys/wait.h>
  33 | #include <X11/cursorfont.h>
  34 | #include <X11/keysym.h>
  35 | #include <X11/Xatom.h>
  36 | #include <X11/Xlib.h>
  37 | #include <X11/Xproto.h>
  38 | #include <X11/Xutil.h>
  39 | #ifdef XINERAMA
  40 | #include <X11/extensions/Xinerama.h>
  41 | #endif /* XINERAMA */
  42 | #include <X11/Xft/Xft.h>
  43 | 
  44 | #include "drw.h"
  45 | #include "util.h"
  46 | 
  47 | /* macros */
  48 | #define BUTTONMASK              (ButtonPressMask|ButtonReleaseMask)
  49 | #define CLEANMASK(mask)         (mask & ~(numlockmask|LockMask) & (ShiftMask|ControlMask|Mod1Mask|Mod2Mask|Mod3Mask|Mod4Mask|Mod5Mask))
  50 | #define INTERSECT(x,y,w,h,m)    (MAX(0, MIN((x)+(w),(m)->wx+(m)->ww) - MAX((x),(m)->wx)) \
  51 |                                * MAX(0, MIN((y)+(h),(m)->wy+(m)->wh) - MAX((y),(m)->wy)))
  52 | #define ISVISIBLE(C)            ((C->mon->isoverview || C->tags & C->mon->tagset[C->mon->seltags]))
  53 | #define LENGTH(X)               (sizeof X / sizeof X[0])
  54 | #define MOUSEMASK               (BUTTONMASK|PointerMotionMask)
  55 | #define WIDTH(X)                ((X)->w + 2 * (X)->bw)
  56 | #define HEIGHT(X)               ((X)->h + 2 * (X)->bw)
  57 | #define TAGMASK                 ((1 << LENGTH(tags)) - 1)
  58 | #define TEXTW(X)                (drw_fontset_getwidth(drw, (X)) + lrpad)
  59 | 
  60 | /* enums */
  61 | enum { CurNormal, CurResize, CurMove, CurLast }; /* cursor */
  62 | enum { SchemeNorm, SchemeSel }; /* color schemes */
  63 | enum { NetSupported, NetWMName, NetWMState, NetWMCheck,
  64 |        NetWMFullscreen, NetActiveWindow, NetWMWindowType,
  65 |        NetWMWindowTypeDialog, NetClientList, NetLast }; /* EWMH atoms */
  66 | enum { WMProtocols, WMDelete, WMState, WMTakeFocus, WMLast }; /* default atoms */
  67 | enum { ClkTagBar, ClkLtSymbol, ClkStatusText, ClkWinTitle,
  68 |        ClkClientWin, ClkRootWin, ClkLast }; /* clicks */
  69 | 
  70 | typedef union {
  71 | 	int i;
  72 | 	unsigned int ui;
  73 | 	float f;
  74 | 	const void *v;
  75 | } Arg;
  76 | 
  77 | typedef struct {
  78 | 	unsigned int click;
  79 | 	unsigned int mask;
  80 | 	unsigned int button;
  81 | 	void (*func)(const Arg *arg);
  82 | 	const Arg arg;
  83 | } Button;
  84 | 
  85 | typedef struct Monitor Monitor;
  86 | typedef struct Client Client;
  87 | struct Client {
  88 | 	char name[256];
  89 | 	float mina, maxa;
  90 | 	int x, y, w, h;
  91 | 	int oldx, oldy, oldw, oldh;
  92 | 	int basew, baseh, incw, inch, maxw, maxh, minw, minh, hintsvalid;
  93 | 	int bw, oldbw;
  94 | 	unsigned int tags;
  95 | 	int isfixed, isfloating, isurgent, neverfocus, oldstate, isfullscreen;
  96 | 	Client *next;
  97 | 	Client *snext;
  98 | 	Monitor *mon;
  99 | 	Window win;
 100 | };
 101 | 
 102 | typedef struct {
 103 | 	unsigned int mod;
 104 | 	KeySym keysym;
 105 | 	void (*func)(const Arg *);
 106 | 	const Arg arg;
 107 | } Key;
 108 | 
 109 | typedef struct {
 110 | 	const char *symbol;
 111 | 	void (*arrange)(Monitor *);
 112 | } Layout;
 113 | 
 114 | struct Monitor {
 115 | 	char ltsymbol[16];
 116 | 	float mfact;
 117 | 	int nmaster;
 118 | 	int num;
 119 | 	int by;               /* bar geometry */
 120 | 	int mx, my, mw, mh;   /* screen size */
 121 | 	int wx, wy, ww, wh;   /* window area  */
 122 | 	unsigned int seltags;
 123 | 	unsigned int sellt;
 124 | 	unsigned int tagset[2];
 125 | 	int showbar;
 126 | 	int topbar;
 127 | 	Client *clients;
 128 | 	Client *sel;
 129 | 	Client *stack;
 130 | 	Monitor *next;
 131 | 	Window barwin;
 132 | 	const Layout *lt[2];
 133 |     unsigned int isoverview;
 134 | };
 135 | 
 136 | typedef struct {
 137 | 	const char *class;
 138 | 	const char *instance;
 139 | 	const char *title;
 140 | 	unsigned int tags;
 141 | 	int isfloating;
 142 | 	int monitor;
 143 | } Rule;
 144 | 
 145 | /* function declarations */
 146 | static void applyrules(Client *c);
 147 | static int applysizehints(Client *c, int *x, int *y, int *w, int *h, int interact);
 148 | static void arrange(Monitor *m);
 149 | static void arrangemon(Monitor *m);
 150 | static void attach(Client *c);
 151 | static void attachstack(Client *c);
 152 | static void buttonpress(XEvent *e);
 153 | static void checkotherwm(void);
 154 | static void cleanup(void);
 155 | static void cleanupmon(Monitor *mon);
 156 | static void clientmessage(XEvent *e);
 157 | static void configure(Client *c);
 158 | static void configurenotify(XEvent *e);
 159 | static void configurerequest(XEvent *e);
 160 | static Monitor *createmon(void);
 161 | static void destroynotify(XEvent *e);
 162 | static void detach(Client *c);
 163 | static void detachstack(Client *c);
 164 | static Monitor *dirtomon(int dir);
 165 | static void drawbar(Monitor *m);
 166 | static void drawbars(void);
 167 | static void enternotify(XEvent *e);
 168 | static void expose(XEvent *e);
 169 | static void focus(Client *c);
 170 | static void focusin(XEvent *e);
 171 | static void focusmon(const Arg *arg);
 172 | static void focusstack(const Arg *arg);
 173 | static Atom getatomprop(Client *c, Atom prop);
 174 | static int getrootptr(int *x, int *y);
 175 | static long getstate(Window w);
 176 | static int gettextprop(Window w, Atom atom, char *text, unsigned int size);
 177 | static void grabbuttons(Client *c, int focused);
 178 | static void grabkeys(void);
 179 | static void incnmaster(const Arg *arg);
 180 | static void keypress(XEvent *e);
 181 | static void killclient(const Arg *arg);
 182 | static void manage(Window w, XWindowAttributes *wa);
 183 | static void managefloating(Client *c);
 184 | static void mappingnotify(XEvent *e);
 185 | static void maprequest(XEvent *e);
 186 | static void monocle(Monitor *m);
 187 | static void motionnotify(XEvent *e);
 188 | static void movemouse(const Arg *arg);
 189 | static Client *nexttiled(Client *c);
 190 | static void pop(Client *);
 191 | static void propertynotify(XEvent *e);
 192 | static void quit(const Arg *arg);
 193 | static Monitor *recttomon(int x, int y, int w, int h);
 194 | static void resize(Client *c, int x, int y, int w, int h, int interact);
 195 | static void resizeclient(Client *c, int x, int y, int w, int h);
 196 | static void resizemouse(const Arg *arg);
 197 | static void restack(Monitor *m);
 198 | static void run(void);
 199 | static void scan(void);
 200 | static int sendevent(Client *c, Atom proto);
 201 | static void sendmon(Client *c, Monitor *m);
 202 | static void setclientstate(Client *c, long state);
 203 | static void setfocus(Client *c);
 204 | static void setfullscreen(Client *c, int fullscreen);
 205 | static void setlayout(const Arg *arg);
 206 | static void setmfact(const Arg *arg);
 207 | static void setup(void);
 208 | static void seturgent(Client *c, int urg);
 209 | static void showhide(Client *c);
 210 | static void sigchld(int unused);
 211 | static void spawn(const Arg *arg);
 212 | static void tag(const Arg *arg);
 213 | static void tagmon(const Arg *arg);
 214 | static void tile(Monitor *);
 215 | static void magicgrid(Monitor *m);
 216 | static void overview(Monitor *m);
 217 | static void grid(Monitor *m, uint gappo, uint uappi);
 218 | static void togglebar(const Arg *arg);
 219 | static void togglefloating(const Arg *arg);
 220 | static void toggletag(const Arg *arg);
 221 | static void toggleview(const Arg *arg);
 222 | static void toggleoverview(const Arg *arg);
 223 | static void unfocus(Client *c, int setfocus);
 224 | static void unmanage(Client *c, int destroyed);
 225 | static void unmapnotify(XEvent *e);
 226 | static void updatebarpos(Monitor *m);
 227 | static void updatebars(void);
 228 | static void updateclientlist(void);
 229 | static int updategeom(void);
 230 | static void updatenumlockmask(void);
 231 | static void updatesizehints(Client *c);
 232 | static void updatestatus(void);
 233 | static void updatetitle(Client *c);
 234 | static void updatewindowtype(Client *c);
 235 | static void updatewmhints(Client *c);
 236 | static void view(const Arg *arg);
 237 | static Client *wintoclient(Window w);
 238 | static Monitor *wintomon(Window w);
 239 | static int xerror(Display *dpy, XErrorEvent *ee);
 240 | static int xerrordummy(Display *dpy, XErrorEvent *ee);
 241 | static int xerrorstart(Display *dpy, XErrorEvent *ee);
 242 | static void zoom(const Arg *arg);
 243 | 
 244 | /* variables */
 245 | static const char broken[] = "broken";
 246 | static char stext[256];
 247 | static int screen;
 248 | static int sw, sh;           /* X display screen geometry width, height */
 249 | static int bh, blw = 0;      /* bar geometry */
 250 | static int lrpad;            /* sum of left and right padding for text */
 251 | static int (*xerrorxlib)(Display *, XErrorEvent *);
 252 | static unsigned int numlockmask = 0;
 253 | static void (*handler[LASTEvent]) (XEvent *) = {
 254 | 	[ButtonPress] = buttonpress,
 255 | 	[ClientMessage] = clientmessage,
 256 | 	[ConfigureRequest] = configurerequest,
 257 | 	[ConfigureNotify] = configurenotify,
 258 | 	[DestroyNotify] = destroynotify,
 259 | 	[EnterNotify] = enternotify,
 260 | 	[Expose] = expose,
 261 | 	[FocusIn] = focusin,
 262 | 	[KeyPress] = keypress,
 263 | 	[MappingNotify] = mappingnotify,
 264 | 	[MapRequest] = maprequest,
 265 | 	[MotionNotify] = motionnotify,
 266 | 	[PropertyNotify] = propertynotify,
 267 | 	[UnmapNotify] = unmapnotify
 268 | };
 269 | static Atom wmatom[WMLast], netatom[NetLast];
 270 | static int running = 1;
 271 | static Cur *cursor[CurLast];
 272 | static Clr **scheme;
 273 | static Display *dpy;
 274 | static Drw *drw;
 275 | static Monitor *mons, *selmon;
 276 | static Window root, wmcheckwin;
 277 | 
 278 | /* configuration, allows nested code to access above variables */
 279 | #include "config.h"
 280 | 
 281 | /* compile-time check if all tags fit into an unsigned int bit array. */
 282 | struct NumTags { char limitexceeded[LENGTH(tags) > 31 ? -1 : 1]; };
 283 | 
 284 | /* function implementations */
 285 | void
 286 | applyrules(Client *c)
 287 | {
 288 | 	const char *class, *instance;
 289 | 	unsigned int i;
 290 | 	const Rule *r;
 291 | 	Monitor *m;
 292 | 	XClassHint ch = { NULL, NULL };
 293 | 
 294 | 	/* rule matching */
 295 | 	c->isfloating = 0;
 296 | 	c->tags = 0;
 297 | 	XGetClassHint(dpy, c->win, &ch);
 298 | 	class    = ch.res_class ? ch.res_class : broken;
 299 | 	instance = ch.res_name  ? ch.res_name  : broken;
 300 | 
 301 | 	for (i = 0; i < LENGTH(rules); i++) {
 302 | 		r = &rules[i];
 303 | 		if ((!r->title || strstr(c->name, r->title))
 304 | 		&& (!r->class || strstr(class, r->class))
 305 | 		&& (!r->instance || strstr(instance, r->instance)))
 306 | 		{
 307 | 			c->isfloating = r->isfloating;
 308 | 			c->tags |= r->tags;
 309 | 			for (m = mons; m && m->num != r->monitor; m = m->next);
 310 | 			if (m)
 311 | 				c->mon = m;
 312 | 		}
 313 | 	}
 314 | 	if (ch.res_class)
 315 | 		XFree(ch.res_class);
 316 | 	if (ch.res_name)
 317 | 		XFree(ch.res_name);
 318 | 	c->tags = c->tags & TAGMASK ? c->tags & TAGMASK : c->mon->tagset[c->mon->seltags];
 319 | }
 320 | 
 321 | int
 322 | applysizehints(Client *c, int *x, int *y, int *w, int *h, int interact)
 323 | {
 324 | 	int baseismin;
 325 | 	Monitor *m = c->mon;
 326 | 
 327 | 	/* set minimum possible */
 328 | 	*w = MAX(1, *w);
 329 | 	*h = MAX(1, *h);
 330 | 	if (interact) {
 331 | 		if (*x > sw)
 332 | 			*x = sw - WIDTH(c);
 333 | 		if (*y > sh)
 334 | 			*y = sh - HEIGHT(c);
 335 | 		if (*x + *w + 2 * c->bw < 0)
 336 | 			*x = 0;
 337 | 		if (*y + *h + 2 * c->bw < 0)
 338 | 			*y = 0;
 339 | 	} else {
 340 | 		if (*x >= m->wx + m->ww)
 341 | 			*x = m->wx + m->ww - WIDTH(c);
 342 | 		if (*y >= m->wy + m->wh)
 343 | 			*y = m->wy + m->wh - HEIGHT(c);
 344 | 		if (*x + *w + 2 * c->bw <= m->wx)
 345 | 			*x = m->wx;
 346 | 		if (*y + *h + 2 * c->bw <= m->wy)
 347 | 			*y = m->wy;
 348 | 	}
 349 | 	if (*h < bh)
 350 | 		*h = bh;
 351 | 	if (*w < bh)
 352 | 		*w = bh;
 353 | 	if (resizehints || c->isfloating || !c->mon->lt[c->mon->sellt]->arrange) {
 354 | 		if (!c->hintsvalid)
 355 | 			updatesizehints(c);
 356 | 		/* see last two sentences in ICCCM 4.1.2.3 */
 357 | 		baseismin = c->basew == c->minw && c->baseh == c->minh;
 358 | 		if (!baseismin) { /* temporarily remove base dimensions */
 359 | 			*w -= c->basew;
 360 | 			*h -= c->baseh;
 361 | 		}
 362 | 		/* adjust for aspect limits */
 363 | 		if (c->mina > 0 && c->maxa > 0) {
 364 | 			if (c->maxa < (float)*w / *h)
 365 | 				*w = *h * c->maxa + 0.5;
 366 | 			else if (c->mina < (float)*h / *w)
 367 | 				*h = *w * c->mina + 0.5;
 368 | 		}
 369 | 		if (baseismin) { /* increment calculation requires this */
 370 | 			*w -= c->basew;
 371 | 			*h -= c->baseh;
 372 | 		}
 373 | 		/* adjust for increment value */
 374 | 		if (c->incw)
 375 | 			*w -= *w % c->incw;
 376 | 		if (c->inch)
 377 | 			*h -= *h % c->inch;
 378 | 		/* restore base dimensions */
 379 | 		*w = MAX(*w + c->basew, c->minw);
 380 | 		*h = MAX(*h + c->baseh, c->minh);
 381 | 		if (c->maxw)
 382 | 			*w = MIN(*w, c->maxw);
 383 | 		if (c->maxh)
 384 | 			*h = MIN(*h, c->maxh);
 385 | 	}
 386 | 	return *x != c->x || *y != c->y || *w != c->w || *h != c->h;
 387 | }
 388 | 
 389 | void
 390 | arrange(Monitor *m)
 391 | {
 392 | 	if (m)
 393 | 		showhide(m->stack);
 394 | 	else for (m = mons; m; m = m->next)
 395 | 		showhide(m->stack);
 396 | 	if (m) {
 397 | 		arrangemon(m);
 398 | 		restack(m);
 399 | 	} else for (m = mons; m; m = m->next)
 400 | 		arrangemon(m);
 401 | }
 402 | 
 403 | void
 404 | arrangemon(Monitor *m)
 405 | {
 406 |     if (m->isoverview) {
 407 |         strncpy(m->ltsymbol, overviewlayout.symbol, sizeof m->ltsymbol);
 408 |         overviewlayout.arrange(m);
 409 |     } else {
 410 |         strncpy(m->ltsymbol, m->lt[m->sellt]->symbol, sizeof m->ltsymbol);
 411 |         if (m->lt[m->sellt]->arrange)
 412 |             m->lt[m->sellt]->arrange(m);
 413 |     }
 414 | }
 415 | 
 416 | void
 417 | attach(Client *c)
 418 | {
 419 |     if (!newclientathead) {
 420 |         Client **tc;
 421 |         for (tc = &c->mon->clients; *tc; tc = &(*tc)->next);
 422 |         *tc = c;
 423 |         c->next = NULL;
 424 |     } else {
 425 |         c->next = c->mon->clients;
 426 |         c->mon->clients = c;
 427 |     }
 428 | }
 429 | 
 430 | void
 431 | attachstack(Client *c)
 432 | {
 433 | 	c->snext = c->mon->stack;
 434 | 	c->mon->stack = c;
 435 | }
 436 | 
 437 | void
 438 | buttonpress(XEvent *e)
 439 | {
 440 | 	unsigned int i, x, click;
 441 | 	Arg arg = {0};
 442 | 	Client *c;
 443 | 	Monitor *m;
 444 | 	XButtonPressedEvent *ev = &e->xbutton;
 445 | 
 446 | 	click = ClkRootWin;
 447 | 	/* focus monitor if necessary */
 448 | 	if ((m = wintomon(ev->window)) && m != selmon) {
 449 | 		unfocus(selmon->sel, 1);
 450 | 		selmon = m;
 451 | 		focus(NULL);
 452 | 	}
 453 | 	if (ev->window == selmon->barwin) {
 454 | 		i = x = 0;
 455 |         if (selmon->isoverview) {
 456 |             x += TEXTW(overviewtag);
 457 |             i = ~0;
 458 |             if (ev->x > x)
 459 |                 i = LENGTH(tags);
 460 |         } else { 
 461 |             do
 462 |                 x += TEXTW(tags[i]);
 463 |             while (ev->x >= x && ++i < LENGTH(tags));
 464 |         }
 465 | 		if (i < LENGTH(tags)) {
 466 | 			click = ClkTagBar;
 467 | 			arg.ui = 1 << i;
 468 | 		} else if (ev->x < x + blw)
 469 | 			click = ClkLtSymbol;
 470 | 		else if (ev->x > selmon->ww - (int)TEXTW(stext))
 471 | 			click = ClkStatusText;
 472 | 		else
 473 | 			click = ClkWinTitle;
 474 | 	} else if ((c = wintoclient(ev->window))) {
 475 | 		focus(c);
 476 | 		restack(selmon);
 477 | 		XAllowEvents(dpy, ReplayPointer, CurrentTime);
 478 | 		click = ClkClientWin;
 479 | 	}
 480 | 	for (i = 0; i < LENGTH(buttons); i++)
 481 | 		if (click == buttons[i].click && buttons[i].func && buttons[i].button == ev->button
 482 | 		&& CLEANMASK(buttons[i].mask) == CLEANMASK(ev->state))
 483 | 			buttons[i].func(click == ClkTagBar && buttons[i].arg.i == 0 ? &arg : &buttons[i].arg);
 484 | }
 485 | 
 486 | void
 487 | checkotherwm(void)
 488 | {
 489 | 	xerrorxlib = XSetErrorHandler(xerrorstart);
 490 | 	/* this causes an error if some other window manager is running */
 491 | 	XSelectInput(dpy, DefaultRootWindow(dpy), SubstructureRedirectMask);
 492 | 	XSync(dpy, False);
 493 | 	XSetErrorHandler(xerror);
 494 | 	XSync(dpy, False);
 495 | }
 496 | 
 497 | void
 498 | cleanup(void)
 499 | {
 500 | 	Arg a = {.ui = ~0};
 501 | 	Layout foo = { "", NULL };
 502 | 	Monitor *m;
 503 | 	size_t i;
 504 | 
 505 | 	view(&a);
 506 | 	selmon->lt[selmon->sellt] = &foo;
 507 | 	for (m = mons; m; m = m->next)
 508 | 		while (m->stack)
 509 | 			unmanage(m->stack, 0);
 510 | 	XUngrabKey(dpy, AnyKey, AnyModifier, root);
 511 | 	while (mons)
 512 | 		cleanupmon(mons);
 513 | 	for (i = 0; i < CurLast; i++)
 514 | 		drw_cur_free(drw, cursor[i]);
 515 | 	for (i = 0; i < LENGTH(colors); i++)
 516 | 		free(scheme[i]);
 517 | 	free(scheme);
 518 | 	XDestroyWindow(dpy, wmcheckwin);
 519 | 	drw_free(drw);
 520 | 	XSync(dpy, False);
 521 | 	XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
 522 | 	XDeleteProperty(dpy, root, netatom[NetActiveWindow]);
 523 | }
 524 | 
 525 | void
 526 | cleanupmon(Monitor *mon)
 527 | {
 528 | 	Monitor *m;
 529 | 
 530 | 	if (mon == mons)
 531 | 		mons = mons->next;
 532 | 	else {
 533 | 		for (m = mons; m && m->next != mon; m = m->next);
 534 | 		m->next = mon->next;
 535 | 	}
 536 | 	XUnmapWindow(dpy, mon->barwin);
 537 | 	XDestroyWindow(dpy, mon->barwin);
 538 | 	free(mon);
 539 | }
 540 | 
 541 | void
 542 | clientmessage(XEvent *e)
 543 | {
 544 | 	XClientMessageEvent *cme = &e->xclient;
 545 | 	Client *c = wintoclient(cme->window);
 546 | 
 547 | 	if (!c)
 548 | 		return;
 549 | 	if (cme->message_type == netatom[NetWMState]) {
 550 | 		if (cme->data.l[1] == netatom[NetWMFullscreen]
 551 | 		|| cme->data.l[2] == netatom[NetWMFullscreen])
 552 | 			setfullscreen(c, (cme->data.l[0] == 1 /* _NET_WM_STATE_ADD    */
 553 | 				|| (cme->data.l[0] == 2 /* _NET_WM_STATE_TOGGLE */ && !c->isfullscreen)));
 554 | 	} else if (cme->message_type == netatom[NetActiveWindow]) {
 555 | 		if (c != selmon->sel && !c->isurgent)
 556 | 			seturgent(c, 1);
 557 | 	}
 558 | }
 559 | 
 560 | void
 561 | configure(Client *c)
 562 | {
 563 | 	XConfigureEvent ce;
 564 | 
 565 | 	ce.type = ConfigureNotify;
 566 | 	ce.display = dpy;
 567 | 	ce.event = c->win;
 568 | 	ce.window = c->win;
 569 | 	ce.x = c->x;
 570 | 	ce.y = c->y;
 571 | 	ce.width = c->w;
 572 | 	ce.height = c->h;
 573 | 	ce.border_width = c->bw;
 574 | 	ce.above = None;
 575 | 	ce.override_redirect = False;
 576 | 	XSendEvent(dpy, c->win, False, StructureNotifyMask, (XEvent *)&ce);
 577 | }
 578 | 
 579 | void
 580 | configurenotify(XEvent *e)
 581 | {
 582 | 	Monitor *m;
 583 | 	Client *c;
 584 | 	XConfigureEvent *ev = &e->xconfigure;
 585 | 	int dirty;
 586 | 
 587 | 	/* TODO: updategeom handling sucks, needs to be simplified */
 588 | 	if (ev->window == root) {
 589 | 		dirty = (sw != ev->width || sh != ev->height);
 590 | 		sw = ev->width;
 591 | 		sh = ev->height;
 592 | 		if (updategeom() || dirty) {
 593 | 			drw_resize(drw, sw, bh);
 594 | 			updatebars();
 595 | 			for (m = mons; m; m = m->next) {
 596 | 				for (c = m->clients; c; c = c->next)
 597 | 					if (c->isfullscreen)
 598 | 						resizeclient(c, m->mx, m->my, m->mw, m->mh);
 599 | 				XMoveResizeWindow(dpy, m->barwin, m->wx, m->by, m->ww, bh);
 600 | 			}
 601 | 			focus(NULL);
 602 | 			arrange(NULL);
 603 | 		}
 604 | 	}
 605 | }
 606 | 
 607 | void
 608 | configurerequest(XEvent *e)
 609 | {
 610 | 	Client *c;
 611 | 	Monitor *m;
 612 | 	XConfigureRequestEvent *ev = &e->xconfigurerequest;
 613 | 	XWindowChanges wc;
 614 | 
 615 | 	if ((c = wintoclient(ev->window))) {
 616 | 		if (ev->value_mask & CWBorderWidth)
 617 | 			c->bw = ev->border_width;
 618 | 		else if (c->isfloating || !selmon->lt[selmon->sellt]->arrange) {
 619 | 			m = c->mon;
 620 | 			if (ev->value_mask & CWX) {
 621 | 				c->oldx = c->x;
 622 | 				c->x = m->mx + ev->x;
 623 | 			}
 624 | 			if (ev->value_mask & CWY) {
 625 | 				c->oldy = c->y;
 626 | 				c->y = m->my + ev->y;
 627 | 			}
 628 | 			if (ev->value_mask & CWWidth) {
 629 | 				c->oldw = c->w;
 630 | 				c->w = ev->width;
 631 | 			}
 632 | 			if (ev->value_mask & CWHeight) {
 633 | 				c->oldh = c->h;
 634 | 				c->h = ev->height;
 635 | 			}
 636 | 			if ((c->x + c->w) > m->mx + m->mw && c->isfloating)
 637 | 				c->x = m->mx + (m->mw / 2 - WIDTH(c) / 2); /* center in x direction */
 638 | 			if ((c->y + c->h) > m->my + m->mh && c->isfloating)
 639 | 				c->y = m->my + (m->mh / 2 - HEIGHT(c) / 2); /* center in y direction */
 640 | 			if ((ev->value_mask & (CWX|CWY)) && !(ev->value_mask & (CWWidth|CWHeight)))
 641 | 				configure(c);
 642 | 			if (ISVISIBLE(c))
 643 | 				XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h);
 644 | 		} else
 645 | 			configure(c);
 646 | 	} else {
 647 | 		wc.x = ev->x;
 648 | 		wc.y = ev->y;
 649 | 		wc.width = ev->width;
 650 | 		wc.height = ev->height;
 651 | 		wc.border_width = ev->border_width;
 652 | 		wc.sibling = ev->above;
 653 | 		wc.stack_mode = ev->detail;
 654 | 		XConfigureWindow(dpy, ev->window, ev->value_mask, &wc);
 655 | 	}
 656 | 	XSync(dpy, False);
 657 | }
 658 | 
 659 | Monitor *
 660 | createmon(void)
 661 | {
 662 | 	Monitor *m;
 663 | 
 664 | 	m = ecalloc(1, sizeof(Monitor));
 665 | 	m->tagset[0] = m->tagset[1] = 1;
 666 | 	m->mfact = mfact;
 667 | 	m->nmaster = nmaster;
 668 | 	m->showbar = showbar;
 669 | 	m->topbar = topbar;
 670 | 	m->lt[0] = &layouts[0];
 671 | 	m->lt[1] = &layouts[1 % LENGTH(layouts)];
 672 |     m->isoverview = 0;
 673 | 	strncpy(m->ltsymbol, layouts[0].symbol, sizeof m->ltsymbol);
 674 | 	return m;
 675 | }
 676 | 
 677 | void
 678 | destroynotify(XEvent *e)
 679 | {
 680 | 	Client *c;
 681 | 	XDestroyWindowEvent *ev = &e->xdestroywindow;
 682 | 
 683 | 	if ((c = wintoclient(ev->window)))
 684 | 		unmanage(c, 1);
 685 | }
 686 | 
 687 | void
 688 | detach(Client *c)
 689 | {
 690 | 	Client **tc;
 691 | 
 692 | 	for (tc = &c->mon->clients; *tc && *tc != c; tc = &(*tc)->next);
 693 | 	*tc = c->next;
 694 | }
 695 | 
 696 | void
 697 | detachstack(Client *c)
 698 | {
 699 | 	Client **tc, *t;
 700 | 
 701 | 	for (tc = &c->mon->stack; *tc && *tc != c; tc = &(*tc)->snext);
 702 | 	*tc = c->snext;
 703 | 
 704 | 	if (c == c->mon->sel) {
 705 | 		for (t = c->mon->stack; t && !ISVISIBLE(t); t = t->snext);
 706 | 		c->mon->sel = t;
 707 | 	}
 708 | }
 709 | 
 710 | Monitor *
 711 | dirtomon(int dir)
 712 | {
 713 | 	Monitor *m = NULL;
 714 | 
 715 | 	if (dir > 0) {
 716 | 		if (!(m = selmon->next))
 717 | 			m = mons;
 718 | 	} else if (selmon == mons)
 719 | 		for (m = mons; m->next; m = m->next);
 720 | 	else
 721 | 		for (m = mons; m->next != selmon; m = m->next);
 722 | 	return m;
 723 | }
 724 | 
 725 | void
 726 | drawbar(Monitor *m)
 727 | {
 728 | 	int x, w, tw = 0;
 729 | 	int boxs = drw->fonts->h / 9;
 730 | 	int boxw = drw->fonts->h / 6 + 2;
 731 | 	unsigned int i, occ = 0, urg = 0;
 732 | 	Client *c;
 733 | 
 734 | 	if (!m->showbar)
 735 | 		return;
 736 | 
 737 | 	/* draw status first so it can be overdrawn by tags later */
 738 | 	if (m == selmon) { /* status is only drawn on selected monitor */
 739 | 		drw_setscheme(drw, scheme[SchemeNorm]);
 740 | 		tw = TEXTW(stext) - lrpad + 2; /* 2px right padding */
 741 | 		drw_text(drw, m->ww - tw, 0, tw, bh, 0, stext, 0);
 742 | 	}
 743 | 
 744 | 	for (c = m->clients; c; c = c->next) {
 745 | 		occ |= c->tags;
 746 | 		if (c->isurgent)
 747 | 			urg |= c->tags;
 748 | 	}
 749 | 	x = 0;
 750 |     if (m->isoverview) {
 751 |         w = TEXTW(overviewtag);
 752 |         drw_setscheme(drw, scheme[SchemeSel]);
 753 |         drw_text(drw, x, 0, w, bh, lrpad / 2, overviewtag, 0);
 754 |         x += w;
 755 |     } else {
 756 |         for (i = 0; i < LENGTH(tags); i++) {
 757 |             w = TEXTW(tags[i]);
 758 |             drw_setscheme(drw, scheme[m->tagset[m->seltags] & 1 << i ? SchemeSel : SchemeNorm]);
 759 |             drw_text(drw, x, 0, w, bh, lrpad / 2, tags[i], urg & 1 << i);
 760 |             if (occ & 1 << i)
 761 |                 drw_rect(drw, x + boxs, boxs, boxw, boxw,
 762 |                     m == selmon && selmon->sel && selmon->sel->tags & 1 << i,
 763 |                     urg & 1 << i);
 764 |             x += w;
 765 |         }
 766 |     }
 767 | 
 768 | 	w = blw = TEXTW(m->ltsymbol);
 769 | 	drw_setscheme(drw, scheme[SchemeNorm]);
 770 | 	x = drw_text(drw, x, 0, w, bh, lrpad / 2, m->ltsymbol, 0);
 771 | 
 772 | 	if ((w = m->ww - tw - x) > bh) {
 773 | 		if (m->sel) {
 774 | 			drw_setscheme(drw, scheme[m == selmon ? SchemeSel : SchemeNorm]);
 775 | 			drw_text(drw, x, 0, w, bh, lrpad / 2, m->sel->name, 0);
 776 | 			if (m->sel->isfloating)
 777 | 				drw_rect(drw, x + boxs, boxs, boxw, boxw, m->sel->isfixed, 0);
 778 | 		} else {
 779 | 			drw_setscheme(drw, scheme[SchemeNorm]);
 780 | 			drw_rect(drw, x, 0, w, bh, 1, 1);
 781 | 		}
 782 | 	}
 783 | 	drw_map(drw, m->barwin, 0, 0, m->ww, bh);
 784 | }
 785 | 
 786 | void
 787 | drawbars(void)
 788 | {
 789 | 	Monitor *m;
 790 | 
 791 | 	for (m = mons; m; m = m->next)
 792 | 		drawbar(m);
 793 | }
 794 | 
 795 | void
 796 | enternotify(XEvent *e)
 797 | {
 798 | 	Client *c;
 799 | 	Monitor *m;
 800 | 	XCrossingEvent *ev = &e->xcrossing;
 801 | 
 802 | 	if ((ev->mode != NotifyNormal || ev->detail == NotifyInferior) && ev->window != root)
 803 | 		return;
 804 | 	c = wintoclient(ev->window);
 805 | 	m = c ? c->mon : wintomon(ev->window);
 806 | 	if (m != selmon) {
 807 | 		unfocus(selmon->sel, 1);
 808 | 		selmon = m;
 809 | 	} else if (!c || c == selmon->sel)
 810 | 		return;
 811 | 	focus(c);
 812 | }
 813 | 
 814 | void
 815 | expose(XEvent *e)
 816 | {
 817 | 	Monitor *m;
 818 | 	XExposeEvent *ev = &e->xexpose;
 819 | 
 820 | 	if (ev->count == 0 && (m = wintomon(ev->window)))
 821 | 		drawbar(m);
 822 | }
 823 | 
 824 | void
 825 | focus(Client *c)
 826 | {
 827 | 	if (!c || !ISVISIBLE(c))
 828 | 		for (c = selmon->stack; c && !ISVISIBLE(c); c = c->snext);
 829 | 	if (selmon->sel && selmon->sel != c)
 830 | 		unfocus(selmon->sel, 0);
 831 | 	if (c) {
 832 | 		if (c->mon != selmon)
 833 | 			selmon = c->mon;
 834 | 		if (c->isurgent)
 835 | 			seturgent(c, 0);
 836 | 		detachstack(c);
 837 | 		attachstack(c);
 838 | 		grabbuttons(c, 1);
 839 | 		XSetWindowBorder(dpy, c->win, scheme[SchemeSel][ColBorder].pixel);
 840 | 		setfocus(c);
 841 | 	} else {
 842 | 		XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
 843 | 		XDeleteProperty(dpy, root, netatom[NetActiveWindow]);
 844 | 	}
 845 | 	selmon->sel = c;
 846 | 	drawbars();
 847 | }
 848 | 
 849 | /* there are some broken focus acquiring clients needing extra handling */
 850 | void
 851 | focusin(XEvent *e)
 852 | {
 853 | 	XFocusChangeEvent *ev = &e->xfocus;
 854 | 
 855 | 	if (selmon->sel && ev->window != selmon->sel->win)
 856 | 		setfocus(selmon->sel);
 857 | }
 858 | 
 859 | void
 860 | focusmon(const Arg *arg)
 861 | {
 862 | 	Monitor *m;
 863 | 
 864 | 	if (!mons->next)
 865 | 		return;
 866 | 	if ((m = dirtomon(arg->i)) == selmon)
 867 | 		return;
 868 | 	unfocus(selmon->sel, 0);
 869 | 	selmon = m;
 870 | 	focus(NULL);
 871 | }
 872 | 
 873 | void
 874 | focusstack(const Arg *arg)
 875 | {
 876 | 	Client *c = NULL, *i;
 877 | 
 878 | 	if (!selmon->sel || (selmon->sel->isfullscreen && lockfullscreen))
 879 | 		return;
 880 | 	if (arg->i > 0) {
 881 | 		for (c = selmon->sel->next; c && !ISVISIBLE(c); c = c->next);
 882 | 		if (!c)
 883 | 			for (c = selmon->clients; c && !ISVISIBLE(c); c = c->next);
 884 | 	} else {
 885 | 		for (i = selmon->clients; i != selmon->sel; i = i->next)
 886 | 			if (ISVISIBLE(i))
 887 | 				c = i;
 888 | 		if (!c)
 889 | 			for (; i; i = i->next)
 890 | 				if (ISVISIBLE(i))
 891 | 					c = i;
 892 | 	}
 893 | 	if (c) {
 894 | 		focus(c);
 895 | 		restack(selmon);
 896 | 	}
 897 | }
 898 | 
 899 | Atom
 900 | getatomprop(Client *c, Atom prop)
 901 | {
 902 | 	int di;
 903 | 	unsigned long dl;
 904 | 	unsigned char *p = NULL;
 905 | 	Atom da, atom = None;
 906 | 
 907 | 	if (XGetWindowProperty(dpy, c->win, prop, 0L, sizeof atom, False, XA_ATOM,
 908 | 		&da, &di, &dl, &dl, &p) == Success && p) {
 909 | 		atom = *(Atom *)p;
 910 | 		XFree(p);
 911 | 	}
 912 | 	return atom;
 913 | }
 914 | 
 915 | int
 916 | getrootptr(int *x, int *y)
 917 | {
 918 | 	int di;
 919 | 	unsigned int dui;
 920 | 	Window dummy;
 921 | 
 922 | 	return XQueryPointer(dpy, root, &dummy, &dummy, x, y, &di, &di, &dui);
 923 | }
 924 | 
 925 | long
 926 | getstate(Window w)
 927 | {
 928 | 	int format;
 929 | 	long result = -1;
 930 | 	unsigned char *p = NULL;
 931 | 	unsigned long n, extra;
 932 | 	Atom real;
 933 | 
 934 | 	if (XGetWindowProperty(dpy, w, wmatom[WMState], 0L, 2L, False, wmatom[WMState],
 935 | 		&real, &format, &n, &extra, (unsigned char **)&p) != Success)
 936 | 		return -1;
 937 | 	if (n != 0)
 938 | 		result = *p;
 939 | 	XFree(p);
 940 | 	return result;
 941 | }
 942 | 
 943 | int
 944 | gettextprop(Window w, Atom atom, char *text, unsigned int size)
 945 | {
 946 | 	char **list = NULL;
 947 | 	int n;
 948 | 	XTextProperty name;
 949 | 
 950 | 	if (!text || size == 0)
 951 | 		return 0;
 952 | 	text[0] = '\0';
 953 | 	if (!XGetTextProperty(dpy, w, &name, atom) || !name.nitems)
 954 | 		return 0;
 955 | 	if (name.encoding == XA_STRING)
 956 | 		strncpy(text, (char *)name.value, size - 1);
 957 | 	else {
 958 | 		if (XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success && n > 0 && *list) {
 959 | 			strncpy(text, *list, size - 1);
 960 | 			XFreeStringList(list);
 961 | 		}
 962 | 	}
 963 | 	text[size - 1] = '\0';
 964 | 	XFree(name.value);
 965 | 	return 1;
 966 | }
 967 | 
 968 | void
 969 | grabbuttons(Client *c, int focused)
 970 | {
 971 | 	updatenumlockmask();
 972 | 	{
 973 | 		unsigned int i, j;
 974 | 		unsigned int modifiers[] = { 0, LockMask, numlockmask, numlockmask|LockMask };
 975 | 		XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
 976 | 		if (!focused)
 977 | 			XGrabButton(dpy, AnyButton, AnyModifier, c->win, False,
 978 | 				BUTTONMASK, GrabModeSync, GrabModeSync, None, None);
 979 | 		for (i = 0; i < LENGTH(buttons); i++)
 980 | 			if (buttons[i].click == ClkClientWin)
 981 | 				for (j = 0; j < LENGTH(modifiers); j++)
 982 | 					XGrabButton(dpy, buttons[i].button,
 983 | 						buttons[i].mask | modifiers[j],
 984 | 						c->win, False, BUTTONMASK,
 985 | 						GrabModeAsync, GrabModeSync, None, None);
 986 | 	}
 987 | }
 988 | 
 989 | void
 990 | grabkeys(void)
 991 | {
 992 | 	updatenumlockmask();
 993 | 	{
 994 | 		unsigned int i, j;
 995 | 		unsigned int modifiers[] = { 0, LockMask, numlockmask, numlockmask|LockMask };
 996 | 		KeyCode code;
 997 | 
 998 | 		XUngrabKey(dpy, AnyKey, AnyModifier, root);
 999 | 		for (i = 0; i < LENGTH(keys); i++)
1000 | 			if ((code = XKeysymToKeycode(dpy, keys[i].keysym)))
1001 | 				for (j = 0; j < LENGTH(modifiers); j++)
1002 | 					XGrabKey(dpy, code, keys[i].mod | modifiers[j], root,
1003 | 						True, GrabModeAsync, GrabModeAsync);
1004 | 	}
1005 | }
1006 | 
1007 | void
1008 | incnmaster(const Arg *arg)
1009 | {
1010 | 	selmon->nmaster = MAX(selmon->nmaster + arg->i, 0);
1011 | 	arrange(selmon);
1012 | }
1013 | 
1014 | #ifdef XINERAMA
1015 | static int
1016 | isuniquegeom(XineramaScreenInfo *unique, size_t n, XineramaScreenInfo *info)
1017 | {
1018 | 	while (n--)
1019 | 		if (unique[n].x_org == info->x_org && unique[n].y_org == info->y_org
1020 | 		&& unique[n].width == info->width && unique[n].height == info->height)
1021 | 			return 0;
1022 | 	return 1;
1023 | }
1024 | #endif /* XINERAMA */
1025 | 
1026 | void
1027 | keypress(XEvent *e)
1028 | {
1029 | 	unsigned int i;
1030 | 	KeySym keysym;
1031 | 	XKeyEvent *ev;
1032 | 
1033 | 	ev = &e->xkey;
1034 | 	keysym = XKeycodeToKeysym(dpy, (KeyCode)ev->keycode, 0);
1035 | 	for (i = 0; i < LENGTH(keys); i++)
1036 | 		if (keysym == keys[i].keysym
1037 | 		&& CLEANMASK(keys[i].mod) == CLEANMASK(ev->state)
1038 | 		&& keys[i].func)
1039 | 			keys[i].func(&(keys[i].arg));
1040 | }
1041 | 
1042 | void
1043 | killclient(const Arg *arg)
1044 | {
1045 | 	if (!selmon->sel)
1046 | 		return;
1047 | 	if (!sendevent(selmon->sel, wmatom[WMDelete])) {
1048 | 		XGrabServer(dpy);
1049 | 		XSetErrorHandler(xerrordummy);
1050 | 		XSetCloseDownMode(dpy, DestroyAll);
1051 | 		XKillClient(dpy, selmon->sel->win);
1052 | 		XSync(dpy, False);
1053 | 		XSetErrorHandler(xerror);
1054 | 		XUngrabServer(dpy);
1055 | 	}
1056 | }
1057 | 
1058 | void
1059 | manage(Window w, XWindowAttributes *wa)
1060 | {
1061 | 	Client *c, *t = NULL;
1062 | 	Window trans = None;
1063 | 	XWindowChanges wc;
1064 | 
1065 | 	c = ecalloc(1, sizeof(Client));
1066 | 	c->win = w;
1067 | 	/* geometry */
1068 | 	c->x = c->oldx = wa->x;
1069 | 	c->y = c->oldy = wa->y;
1070 | 	c->w = c->oldw = wa->width;
1071 | 	c->h = c->oldh = wa->height;
1072 | 	c->oldbw = wa->border_width;
1073 | 
1074 | 	updatetitle(c);
1075 | 	if (XGetTransientForHint(dpy, w, &trans) && (t = wintoclient(trans))) {
1076 | 		c->mon = t->mon;
1077 | 		c->tags = t->tags;
1078 | 	} else {
1079 | 		c->mon = selmon;
1080 | 		applyrules(c);
1081 | 	}
1082 | 
1083 | 	if (c->x + WIDTH(c) > c->mon->mx + c->mon->mw)
1084 | 		c->x = c->mon->mx + c->mon->mw - WIDTH(c);
1085 | 	if (c->y + HEIGHT(c) > c->mon->my + c->mon->mh)
1086 | 		c->y = c->mon->my + c->mon->mh - HEIGHT(c);
1087 | 	c->x = MAX(c->x, c->mon->mx);
1088 | 	/* only fix client y-offset, if the client center might cover the bar */
1089 | 	c->y = MAX(c->y, ((c->mon->by == c->mon->my) && (c->x + (c->w / 2) >= c->mon->wx)
1090 | 		&& (c->x + (c->w / 2) < c->mon->wx + c->mon->ww)) ? bh : c->mon->my);
1091 | 	c->bw = borderpx;
1092 | 
1093 | 	wc.border_width = c->bw;
1094 | 
1095 |     if (c->isfloating) {
1096 |         if (wa->x==0 && wa->y==0) {
1097 |             c->x = selmon->wx + (selmon->ww - c->w) / 2;
1098 |             c->y = selmon->wy + (selmon->wh - c->h) / 2;
1099 |         }
1100 |         managefloating(c);
1101 |     }
1102 | 
1103 | 	XConfigureWindow(dpy, w, CWBorderWidth, &wc);
1104 | 	XSetWindowBorder(dpy, w, scheme[SchemeNorm][ColBorder].pixel);
1105 | 	configure(c); /* propagates border_width, if size doesn't change */
1106 | 	updatewindowtype(c);
1107 | 	updatesizehints(c);
1108 | 	updatewmhints(c);
1109 | 	XSelectInput(dpy, w, EnterWindowMask|FocusChangeMask|PropertyChangeMask|StructureNotifyMask);
1110 | 	grabbuttons(c, 0);
1111 | 	if (!c->isfloating)
1112 | 		c->isfloating = c->oldstate = trans != None || c->isfixed;
1113 | 	if (c->isfloating)
1114 | 		XRaiseWindow(dpy, c->win);
1115 | 	attach(c);
1116 | 	attachstack(c);
1117 | 	XChangeProperty(dpy, root, netatom[NetClientList], XA_WINDOW, 32, PropModeAppend,
1118 | 		(unsigned char *) &(c->win), 1);
1119 | 	XMoveResizeWindow(dpy, c->win, c->x + 2 * sw, c->y, c->w, c->h); /* some windows require this */
1120 | 	setclientstate(c, NormalState);
1121 | 	if (c->mon == selmon)
1122 | 		unfocus(selmon->sel, 0);
1123 | 	c->mon->sel = c;
1124 | 	arrange(c->mon);
1125 | 	XMapWindow(dpy, c->win);
1126 | 	focus(NULL);
1127 | }
1128 | 
1129 | void
1130 | managefloating(Client *c)
1131 | {
1132 |     Client *tc;
1133 |     int d1 = 0, d2 = 0, tx, ty;
1134 |     int tryed = 0;
1135 |     while (tryed++ < 10) {
1136 |         int dw, dh, existed = 0;
1137 |         dw = (selmon->ww / 20) * d1, dh = (selmon->wh / 20) * d2;
1138 |         tx = c->x + dw, ty = c->y + dh;
1139 |         for (tc = selmon->clients; tc; tc = tc->next) {
1140 |             if (ISVISIBLE(tc) && tc != c && tc->x == tx && tc->y == ty) {
1141 |                 existed = 1;
1142 |                 break;
1143 |             }
1144 |         }
1145 |         if (!existed) {
1146 |             c->x = tx;
1147 |             c->y = ty;
1148 |             break;
1149 |         } else {
1150 |             while (d1 == 0) d1 = rand()%7 - 3;
1151 |             while (d2 == 0) d2 = rand()%7 - 3;
1152 |         }
1153 |     }
1154 | }
1155 | 
1156 | void
1157 | mappingnotify(XEvent *e)
1158 | {
1159 | 	XMappingEvent *ev = &e->xmapping;
1160 | 
1161 | 	XRefreshKeyboardMapping(ev);
1162 | 	if (ev->request == MappingKeyboard)
1163 | 		grabkeys();
1164 | }
1165 | 
1166 | void
1167 | maprequest(XEvent *e)
1168 | {
1169 | 	static XWindowAttributes wa;
1170 | 	XMapRequestEvent *ev = &e->xmaprequest;
1171 | 
1172 | 	if (!XGetWindowAttributes(dpy, ev->window, &wa))
1173 | 		return;
1174 | 	if (wa.override_redirect)
1175 | 		return;
1176 | 	if (!wintoclient(ev->window))
1177 | 		manage(ev->window, &wa);
1178 | }
1179 | 
1180 | void
1181 | monocle(Monitor *m)
1182 | {
1183 | 	unsigned int n = 0;
1184 | 	Client *c;
1185 | 
1186 | 	for (c = m->clients; c; c = c->next)
1187 | 		if (ISVISIBLE(c))
1188 | 			n++;
1189 | 	if (n > 0) /* override layout symbol */
1190 | 		snprintf(m->ltsymbol, sizeof m->ltsymbol, "[%d]", n);
1191 | 	for (c = nexttiled(m->clients); c; c = nexttiled(c->next))
1192 | 		resize(c, m->wx, m->wy, m->ww - 2 * c->bw, m->wh - 2 * c->bw, 0);
1193 | }
1194 | 
1195 | void
1196 | motionnotify(XEvent *e)
1197 | {
1198 | 	static Monitor *mon = NULL;
1199 | 	Monitor *m;
1200 | 	XMotionEvent *ev = &e->xmotion;
1201 | 
1202 | 	if (ev->window != root)
1203 | 		return;
1204 | 	if ((m = recttomon(ev->x_root, ev->y_root, 1, 1)) != mon && mon) {
1205 | 		unfocus(selmon->sel, 1);
1206 | 		selmon = m;
1207 | 		focus(NULL);
1208 | 	}
1209 | 	mon = m;
1210 | }
1211 | 
1212 | void
1213 | movemouse(const Arg *arg)
1214 | {
1215 | 	int x, y, ocx, ocy, nx, ny;
1216 | 	Client *c;
1217 | 	Monitor *m;
1218 | 	XEvent ev;
1219 | 	Time lasttime = 0;
1220 | 
1221 | 	if (!(c = selmon->sel))
1222 | 		return;
1223 | 	if (c->isfullscreen) /* no support moving fullscreen windows by mouse */
1224 | 		return;
1225 | 	restack(selmon);
1226 | 	ocx = c->x;
1227 | 	ocy = c->y;
1228 | 	if (XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
1229 | 		None, cursor[CurMove]->cursor, CurrentTime) != GrabSuccess)
1230 | 		return;
1231 | 	if (!getrootptr(&x, &y))
1232 | 		return;
1233 | 	do {
1234 | 		XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask, &ev);
1235 | 		switch(ev.type) {
1236 | 		case ConfigureRequest:
1237 | 		case Expose:
1238 | 		case MapRequest:
1239 | 			handler[ev.type](&ev);
1240 | 			break;
1241 | 		case MotionNotify:
1242 | 			if ((ev.xmotion.time - lasttime) <= (1000 / 60))
1243 | 				continue;
1244 | 			lasttime = ev.xmotion.time;
1245 | 
1246 | 			nx = ocx + (ev.xmotion.x - x);
1247 | 			ny = ocy + (ev.xmotion.y - y);
1248 | 			if (abs(selmon->wx - nx) < snap)
1249 | 				nx = selmon->wx;
1250 | 			else if (abs((selmon->wx + selmon->ww) - (nx + WIDTH(c))) < snap)
1251 | 				nx = selmon->wx + selmon->ww - WIDTH(c);
1252 | 			if (abs(selmon->wy - ny) < snap)
1253 | 				ny = selmon->wy;
1254 | 			else if (abs((selmon->wy + selmon->wh) - (ny + HEIGHT(c))) < snap)
1255 | 				ny = selmon->wy + selmon->wh - HEIGHT(c);
1256 | 			if (!c->isfloating && selmon->lt[selmon->sellt]->arrange
1257 | 			&& (abs(nx - c->x) > snap || abs(ny - c->y) > snap))
1258 | 				togglefloating(NULL);
1259 | 			if (!selmon->lt[selmon->sellt]->arrange || c->isfloating)
1260 | 				resize(c, nx, ny, c->w, c->h, 1);
1261 | 			break;
1262 | 		}
1263 | 	} while (ev.type != ButtonRelease);
1264 | 	XUngrabPointer(dpy, CurrentTime);
1265 | 	if ((m = recttomon(c->x, c->y, c->w, c->h)) != selmon) {
1266 | 		sendmon(c, m);
1267 | 		selmon = m;
1268 | 		focus(NULL);
1269 | 	}
1270 | }
1271 | 
1272 | Client *
1273 | nexttiled(Client *c)
1274 | {
1275 | 	for (; c && (c->isfloating || !ISVISIBLE(c)); c = c->next);
1276 | 	return c;
1277 | }
1278 | 
1279 | void
1280 | pop(Client *c)
1281 | {
1282 | 	detach(c);
1283 | 	attach(c);
1284 | 	focus(c);
1285 | 	arrange(c->mon);
1286 | }
1287 | 
1288 | void
1289 | propertynotify(XEvent *e)
1290 | {
1291 | 	Client *c;
1292 | 	Window trans;
1293 | 	XPropertyEvent *ev = &e->xproperty;
1294 | 
1295 | 	if ((ev->window == root) && (ev->atom == XA_WM_NAME))
1296 | 		updatestatus();
1297 | 	else if (ev->state == PropertyDelete)
1298 | 		return; /* ignore */
1299 | 	else if ((c = wintoclient(ev->window))) {
1300 | 		switch(ev->atom) {
1301 | 		default: break;
1302 | 		case XA_WM_TRANSIENT_FOR:
1303 | 			if (!c->isfloating && (XGetTransientForHint(dpy, c->win, &trans)) &&
1304 | 				(c->isfloating = (wintoclient(trans)) != NULL))
1305 | 				arrange(c->mon);
1306 | 			break;
1307 | 		case XA_WM_NORMAL_HINTS:
1308 | 			c->hintsvalid = 0;
1309 | 			break;
1310 | 		case XA_WM_HINTS:
1311 | 			updatewmhints(c);
1312 | 			drawbars();
1313 | 			break;
1314 | 		}
1315 | 		if (ev->atom == XA_WM_NAME || ev->atom == netatom[NetWMName]) {
1316 | 			updatetitle(c);
1317 | 			if (c == c->mon->sel)
1318 | 				drawbar(c->mon);
1319 | 		}
1320 | 		if (ev->atom == netatom[NetWMWindowType])
1321 | 			updatewindowtype(c);
1322 | 	}
1323 | }
1324 | 
1325 | void
1326 | quit(const Arg *arg)
1327 | {
1328 | 	running = 0;
1329 | }
1330 | 
1331 | Monitor *
1332 | recttomon(int x, int y, int w, int h)
1333 | {
1334 | 	Monitor *m, *r = selmon;
1335 | 	int a, area = 0;
1336 | 
1337 | 	for (m = mons; m; m = m->next)
1338 | 		if ((a = INTERSECT(x, y, w, h, m)) > area) {
1339 | 			area = a;
1340 | 			r = m;
1341 | 		}
1342 | 	return r;
1343 | }
1344 | 
1345 | void
1346 | resize(Client *c, int x, int y, int w, int h, int interact)
1347 | {
1348 | 	if (applysizehints(c, &x, &y, &w, &h, interact))
1349 | 		resizeclient(c, x, y, w, h);
1350 | }
1351 | 
1352 | void
1353 | resizeclient(Client *c, int x, int y, int w, int h)
1354 | {
1355 | 	XWindowChanges wc;
1356 | 
1357 | 	c->oldx = c->x; c->x = wc.x = x;
1358 | 	c->oldy = c->y; c->y = wc.y = y;
1359 | 	c->oldw = c->w; c->w = wc.width = w;
1360 | 	c->oldh = c->h; c->h = wc.height = h;
1361 | 	wc.border_width = c->bw;
1362 | 	XConfigureWindow(dpy, c->win, CWX|CWY|CWWidth|CWHeight|CWBorderWidth, &wc);
1363 | 	configure(c);
1364 | 	XSync(dpy, False);
1365 | }
1366 | 
1367 | void
1368 | resizemouse(const Arg *arg)
1369 | {
1370 | 	int ocx, ocy, nw, nh;
1371 | 	Client *c;
1372 | 	Monitor *m;
1373 | 	XEvent ev;
1374 | 	Time lasttime = 0;
1375 | 
1376 | 	if (!(c = selmon->sel))
1377 | 		return;
1378 | 	if (c->isfullscreen) /* no support resizing fullscreen windows by mouse */
1379 | 		return;
1380 | 	restack(selmon);
1381 | 	ocx = c->x;
1382 | 	ocy = c->y;
1383 | 	if (XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
1384 | 		None, cursor[CurResize]->cursor, CurrentTime) != GrabSuccess)
1385 | 		return;
1386 | 	XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1, c->h + c->bw - 1);
1387 | 	do {
1388 | 		XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask, &ev);
1389 | 		switch(ev.type) {
1390 | 		case ConfigureRequest:
1391 | 		case Expose:
1392 | 		case MapRequest:
1393 | 			handler[ev.type](&ev);
1394 | 			break;
1395 | 		case MotionNotify:
1396 | 			if ((ev.xmotion.time - lasttime) <= (1000 / 60))
1397 | 				continue;
1398 | 			lasttime = ev.xmotion.time;
1399 | 
1400 | 			nw = MAX(ev.xmotion.x - ocx - 2 * c->bw + 1, 1);
1401 | 			nh = MAX(ev.xmotion.y - ocy - 2 * c->bw + 1, 1);
1402 | 			if (c->mon->wx + nw >= selmon->wx && c->mon->wx + nw <= selmon->wx + selmon->ww
1403 | 			&& c->mon->wy + nh >= selmon->wy && c->mon->wy + nh <= selmon->wy + selmon->wh)
1404 | 			{
1405 | 				if (!c->isfloating && selmon->lt[selmon->sellt]->arrange
1406 | 				&& (abs(nw - c->w) > snap || abs(nh - c->h) > snap))
1407 | 					togglefloating(NULL);
1408 | 			}
1409 | 			if (!selmon->lt[selmon->sellt]->arrange || c->isfloating)
1410 | 				resize(c, c->x, c->y, nw, nh, 1);
1411 | 			break;
1412 | 		}
1413 | 	} while (ev.type != ButtonRelease);
1414 | 	XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1, c->h + c->bw - 1);
1415 | 	XUngrabPointer(dpy, CurrentTime);
1416 | 	while (XCheckMaskEvent(dpy, EnterWindowMask, &ev));
1417 | 	if ((m = recttomon(c->x, c->y, c->w, c->h)) != selmon) {
1418 | 		sendmon(c, m);
1419 | 		selmon = m;
1420 | 		focus(NULL);
1421 | 	}
1422 | }
1423 | 
1424 | void
1425 | restack(Monitor *m)
1426 | {
1427 | 	Client *c;
1428 | 	XEvent ev;
1429 | 	XWindowChanges wc;
1430 | 
1431 | 	drawbar(m);
1432 | 	if (!m->sel)
1433 | 		return;
1434 | 	if (m->sel->isfloating || !m->lt[m->sellt]->arrange)
1435 | 		XRaiseWindow(dpy, m->sel->win);
1436 | 	if (m->lt[m->sellt]->arrange) {
1437 | 		wc.stack_mode = Below;
1438 | 		wc.sibling = m->barwin;
1439 | 		for (c = m->stack; c; c = c->snext)
1440 | 			if (!c->isfloating && ISVISIBLE(c)) {
1441 | 				XConfigureWindow(dpy, c->win, CWSibling|CWStackMode, &wc);
1442 | 				wc.sibling = c->win;
1443 | 			}
1444 | 	}
1445 | 	XSync(dpy, False);
1446 | 	while (XCheckMaskEvent(dpy, EnterWindowMask, &ev));
1447 | }
1448 | 
1449 | void
1450 | run(void)
1451 | {
1452 | 	XEvent ev;
1453 | 	/* main event loop */
1454 | 	XSync(dpy, False);
1455 | 	while (running && !XNextEvent(dpy, &ev))
1456 | 		if (handler[ev.type])
1457 | 			handler[ev.type](&ev); /* call handler */
1458 | }
1459 | 
1460 | void
1461 | scan(void)
1462 | {
1463 | 	unsigned int i, num;
1464 | 	Window d1, d2, *wins = NULL;
1465 | 	XWindowAttributes wa;
1466 | 
1467 | 	if (XQueryTree(dpy, root, &d1, &d2, &wins, &num)) {
1468 | 		for (i = 0; i < num; i++) {
1469 | 			if (!XGetWindowAttributes(dpy, wins[i], &wa)
1470 | 			|| wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1))
1471 | 				continue;
1472 | 			if (wa.map_state == IsViewable || getstate(wins[i]) == IconicState)
1473 | 				manage(wins[i], &wa);
1474 | 		}
1475 | 		for (i = 0; i < num; i++) { /* now the transients */
1476 | 			if (!XGetWindowAttributes(dpy, wins[i], &wa))
1477 | 				continue;
1478 | 			if (XGetTransientForHint(dpy, wins[i], &d1)
1479 | 			&& (wa.map_state == IsViewable || getstate(wins[i]) == IconicState))
1480 | 				manage(wins[i], &wa);
1481 | 		}
1482 | 		if (wins)
1483 | 			XFree(wins);
1484 | 	}
1485 | }
1486 | 
1487 | void
1488 | sendmon(Client *c, Monitor *m)
1489 | {
1490 | 	if (c->mon == m)
1491 | 		return;
1492 | 	unfocus(c, 1);
1493 | 	detach(c);
1494 | 	detachstack(c);
1495 | 	c->mon = m;
1496 | 	c->tags = m->tagset[m->seltags]; /* assign tags of target monitor */
1497 | 	attach(c);
1498 | 	attachstack(c);
1499 | 	focus(NULL);
1500 | 	arrange(NULL);
1501 | }
1502 | 
1503 | void
1504 | setclientstate(Client *c, long state)
1505 | {
1506 | 	long data[] = { state, None };
1507 | 
1508 | 	XChangeProperty(dpy, c->win, wmatom[WMState], wmatom[WMState], 32,
1509 | 		PropModeReplace, (unsigned char *)data, 2);
1510 | }
1511 | 
1512 | int
1513 | sendevent(Client *c, Atom proto)
1514 | {
1515 | 	int n;
1516 | 	Atom *protocols;
1517 | 	int exists = 0;
1518 | 	XEvent ev;
1519 | 
1520 | 	if (XGetWMProtocols(dpy, c->win, &protocols, &n)) {
1521 | 		while (!exists && n--)
1522 | 			exists = protocols[n] == proto;
1523 | 		XFree(protocols);
1524 | 	}
1525 | 	if (exists) {
1526 | 		ev.type = ClientMessage;
1527 | 		ev.xclient.window = c->win;
1528 | 		ev.xclient.message_type = wmatom[WMProtocols];
1529 | 		ev.xclient.format = 32;
1530 | 		ev.xclient.data.l[0] = proto;
1531 | 		ev.xclient.data.l[1] = CurrentTime;
1532 | 		XSendEvent(dpy, c->win, False, NoEventMask, &ev);
1533 | 	}
1534 | 	return exists;
1535 | }
1536 | 
1537 | void
1538 | setfocus(Client *c)
1539 | {
1540 | 	if (!c->neverfocus) {
1541 | 		XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime);
1542 | 		XChangeProperty(dpy, root, netatom[NetActiveWindow],
1543 | 			XA_WINDOW, 32, PropModeReplace,
1544 | 			(unsigned char *) &(c->win), 1);
1545 | 	}
1546 | 	sendevent(c, wmatom[WMTakeFocus]);
1547 | }
1548 | 
1549 | void
1550 | setfullscreen(Client *c, int fullscreen)
1551 | {
1552 | 	if (fullscreen && !c->isfullscreen) {
1553 | 		XChangeProperty(dpy, c->win, netatom[NetWMState], XA_ATOM, 32,
1554 | 			PropModeReplace, (unsigned char*)&netatom[NetWMFullscreen], 1);
1555 | 		c->isfullscreen = 1;
1556 | 		c->oldstate = c->isfloating;
1557 | 		c->oldbw = c->bw;
1558 | 		c->bw = 0;
1559 | 		c->isfloating = 1;
1560 | 		resizeclient(c, c->mon->mx, c->mon->my, c->mon->mw, c->mon->mh);
1561 | 		XRaiseWindow(dpy, c->win);
1562 | 	} else if (!fullscreen && c->isfullscreen){
1563 | 		XChangeProperty(dpy, c->win, netatom[NetWMState], XA_ATOM, 32,
1564 | 			PropModeReplace, (unsigned char*)0, 0);
1565 | 		c->isfullscreen = 0;
1566 | 		c->isfloating = c->oldstate;
1567 | 		c->bw = c->oldbw;
1568 | 		c->x = c->oldx;
1569 | 		c->y = c->oldy;
1570 | 		c->w = c->oldw;
1571 | 		c->h = c->oldh;
1572 | 		resizeclient(c, c->x, c->y, c->w, c->h);
1573 | 		arrange(c->mon);
1574 | 	}
1575 | }
1576 | 
1577 | void
1578 | setlayout(const Arg *arg)
1579 | {
1580 | 	if (!arg || !arg->v || arg->v != selmon->lt[selmon->sellt])
1581 | 		selmon->sellt ^= 1;
1582 | 	if (arg && arg->v)
1583 | 		selmon->lt[selmon->sellt] = (Layout *)arg->v;
1584 | 	strncpy(selmon->ltsymbol, selmon->lt[selmon->sellt]->symbol, sizeof selmon->ltsymbol);
1585 | 	if (selmon->sel)
1586 | 		arrange(selmon);
1587 | 	else
1588 | 		drawbar(selmon);
1589 | }
1590 | 
1591 | /* arg > 1.0 will set mfact absolutely */
1592 | void
1593 | setmfact(const Arg *arg)
1594 | {
1595 | 	float f;
1596 | 
1597 | 	if (!arg || !selmon->lt[selmon->sellt]->arrange)
1598 | 		return;
1599 | 	f = arg->f < 1.0 ? arg->f + selmon->mfact : arg->f - 1.0;
1600 | 	if (f < 0.05 || f > 0.95)
1601 | 		return;
1602 | 	selmon->mfact = f;
1603 | 	arrange(selmon);
1604 | }
1605 | 
1606 | void
1607 | setup(void)
1608 | {
1609 | 	int i;
1610 | 	XSetWindowAttributes wa;
1611 | 	Atom utf8string;
1612 | 
1613 | 	/* clean up any zombies immediately */
1614 | 	sigchld(0);
1615 | 
1616 | 	/* init screen */
1617 | 	screen = DefaultScreen(dpy);
1618 | 	sw = DisplayWidth(dpy, screen);
1619 | 	sh = DisplayHeight(dpy, screen);
1620 | 	root = RootWindow(dpy, screen);
1621 | 	drw = drw_create(dpy, screen, root, sw, sh);
1622 | 	if (!drw_fontset_create(drw, fonts, LENGTH(fonts)))
1623 | 		die("no fonts could be loaded.");
1624 | 	lrpad = drw->fonts->h;
1625 | 	bh = drw->fonts->h + 2;
1626 | 	updategeom();
1627 | 	/* init atoms */
1628 | 	utf8string = XInternAtom(dpy, "UTF8_STRING", False);
1629 | 	wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);
1630 | 	wmatom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
1631 | 	wmatom[WMState] = XInternAtom(dpy, "WM_STATE", False);
1632 | 	wmatom[WMTakeFocus] = XInternAtom(dpy, "WM_TAKE_FOCUS", False);
1633 | 	netatom[NetActiveWindow] = XInternAtom(dpy, "_NET_ACTIVE_WINDOW", False);
1634 | 	netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False);
1635 | 	netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False);
1636 | 	netatom[NetWMState] = XInternAtom(dpy, "_NET_WM_STATE", False);
1637 | 	netatom[NetWMCheck] = XInternAtom(dpy, "_NET_SUPPORTING_WM_CHECK", False);
1638 | 	netatom[NetWMFullscreen] = XInternAtom(dpy, "_NET_WM_STATE_FULLSCREEN", False);
1639 | 	netatom[NetWMWindowType] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE", False);
1640 | 	netatom[NetWMWindowTypeDialog] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE_DIALOG", False);
1641 | 	netatom[NetClientList] = XInternAtom(dpy, "_NET_CLIENT_LIST", False);
1642 | 	/* init cursors */
1643 | 	cursor[CurNormal] = drw_cur_create(drw, XC_left_ptr);
1644 | 	cursor[CurResize] = drw_cur_create(drw, XC_sizing);
1645 | 	cursor[CurMove] = drw_cur_create(drw, XC_fleur);
1646 | 	/* init appearance */
1647 | 	scheme = ecalloc(LENGTH(colors), sizeof(Clr *));
1648 | 	for (i = 0; i < LENGTH(colors); i++)
1649 | 		scheme[i] = drw_scm_create(drw, colors[i], 3);
1650 | 	/* init bars */
1651 | 	updatebars();
1652 | 	updatestatus();
1653 | 	/* supporting window for NetWMCheck */
1654 | 	wmcheckwin = XCreateSimpleWindow(dpy, root, 0, 0, 1, 1, 0, 0, 0);
1655 | 	XChangeProperty(dpy, wmcheckwin, netatom[NetWMCheck], XA_WINDOW, 32,
1656 | 		PropModeReplace, (unsigned char *) &wmcheckwin, 1);
1657 | 	XChangeProperty(dpy, wmcheckwin, netatom[NetWMName], utf8string, 8,
1658 | 		PropModeReplace, (unsigned char *) "dwm", 3);
1659 | 	XChangeProperty(dpy, root, netatom[NetWMCheck], XA_WINDOW, 32,
1660 | 		PropModeReplace, (unsigned char *) &wmcheckwin, 1);
1661 | 	/* EWMH support per view */
1662 | 	XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32,
1663 | 		PropModeReplace, (unsigned char *) netatom, NetLast);
1664 | 	XDeleteProperty(dpy, root, netatom[NetClientList]);
1665 | 	/* select events */
1666 | 	wa.cursor = cursor[CurNormal]->cursor;
1667 | 	wa.event_mask = SubstructureRedirectMask|SubstructureNotifyMask
1668 | 		|ButtonPressMask|PointerMotionMask|EnterWindowMask
1669 | 		|LeaveWindowMask|StructureNotifyMask|PropertyChangeMask;
1670 | 	XChangeWindowAttributes(dpy, root, CWEventMask|CWCursor, &wa);
1671 | 	XSelectInput(dpy, root, wa.event_mask);
1672 | 	grabkeys();
1673 | 	focus(NULL);
1674 | }
1675 | 
1676 | 
1677 | void
1678 | seturgent(Client *c, int urg)
1679 | {
1680 | 	XWMHints *wmh;
1681 | 
1682 | 	c->isurgent = urg;
1683 | 	if (!(wmh = XGetWMHints(dpy, c->win)))
1684 | 		return;
1685 | 	wmh->flags = urg ? (wmh->flags | XUrgencyHint) : (wmh->flags & ~XUrgencyHint);
1686 | 	XSetWMHints(dpy, c->win, wmh);
1687 | 	XFree(wmh);
1688 | }
1689 | 
1690 | void
1691 | showhide(Client *c)
1692 | {
1693 | 	if (!c)
1694 | 		return;
1695 | 	if (ISVISIBLE(c)) {
1696 | 		/* show clients top down */
1697 | 		XMoveWindow(dpy, c->win, c->x, c->y);
1698 | 		if ((!c->mon->lt[c->mon->sellt]->arrange || c->isfloating) && !c->isfullscreen)
1699 | 			resize(c, c->x, c->y, c->w, c->h, 0);
1700 | 		showhide(c->snext);
1701 | 	} else {
1702 | 		/* hide clients bottom up */
1703 | 		showhide(c->snext);
1704 | 		XMoveWindow(dpy, c->win, WIDTH(c) * -2, c->y);
1705 | 	}
1706 | }
1707 | 
1708 | void
1709 | sigchld(int unused)
1710 | {
1711 | 	if (signal(SIGCHLD, sigchld) == SIG_ERR)
1712 | 		die("can't install SIGCHLD handler:");
1713 | 	while (0 < waitpid(-1, NULL, WNOHANG));
1714 | }
1715 | 
1716 | void
1717 | spawn(const Arg *arg)
1718 | {
1719 | 	if (arg->v == dmenucmd)
1720 | 		dmenumon[0] = '0' + selmon->num;
1721 | 	if (fork() == 0) {
1722 | 		if (dpy)
1723 | 			close(ConnectionNumber(dpy));
1724 | 		setsid();
1725 | 		execvp(((char **)arg->v)[0], (char **)arg->v);
1726 | 		fprintf(stderr, "dwm: execvp %s", ((char **)arg->v)[0]);
1727 | 		perror(" failed");
1728 | 		exit(EXIT_SUCCESS);
1729 | 	}
1730 | }
1731 | 
1732 | void
1733 | tag(const Arg *arg)
1734 | {
1735 | 	if (selmon->sel && arg->ui & TAGMASK) {
1736 | 		selmon->sel->tags = arg->ui & TAGMASK;
1737 | 		focus(NULL);
1738 | 		arrange(selmon);
1739 | 	}
1740 | }
1741 | 
1742 | void
1743 | tagmon(const Arg *arg)
1744 | {
1745 | 	if (!selmon->sel || !mons->next)
1746 | 		return;
1747 | 	sendmon(selmon->sel, dirtomon(arg->i));
1748 | }
1749 | 
1750 | void
1751 | tile(Monitor *m)
1752 | {
1753 | 	unsigned int i, n, h, mw, my, ty;
1754 | 	Client *c;
1755 | 
1756 | 	for (n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++);
1757 | 	if (n == 0)
1758 | 		return;
1759 | 
1760 | 	if (n > m->nmaster)
1761 | 		mw = m->nmaster ? m->ww * m->mfact : 0;
1762 | 	else
1763 | 		mw = m->ww;
1764 | 	for (i = my = ty = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++)
1765 | 		if (i < m->nmaster) {
1766 | 			h = (m->wh - my) / (MIN(n, m->nmaster) - i);
1767 | 			resize(c, m->wx, m->wy + my, mw - (2*c->bw), h - (2*c->bw), 0);
1768 | 			if (my + HEIGHT(c) < m->wh)
1769 | 				my += HEIGHT(c);
1770 | 		} else {
1771 | 			h = (m->wh - ty) / (n - i);
1772 | 			resize(c, m->wx + mw, m->wy + ty, m->ww - mw - (2*c->bw), h - (2*c->bw), 0);
1773 | 			if (ty + HEIGHT(c) < m->wh)
1774 | 				ty += HEIGHT(c);
1775 | 		}
1776 | }
1777 | 
1778 | void
1779 | magicgrid(Monitor *m)
1780 | {
1781 |     grid(m, 12, 12);
1782 | }
1783 | 
1784 | void
1785 | overview(Monitor *m)
1786 | {
1787 |     grid(m, overviewgappo, overviewgappi);
1788 | }
1789 | 
1790 | // 显示所有tag 或 跳转到聚焦窗口的tag
1791 | void
1792 | toggleoverview(const Arg *arg)
1793 | {
1794 |     uint target = selmon->sel ? selmon->sel->tags : selmon->tagset[selmon->seltags];
1795 |     selmon->isoverview ^= 1;
1796 |     view(&(Arg){ .ui = target });
1797 | }
1798 | 
1799 | void
1800 | grid(Monitor *m, uint gappo, uint gappi)
1801 | {
1802 |     unsigned int i, n;
1803 |     unsigned int cx, cy, cw, ch;
1804 |     unsigned int dx;
1805 |     unsigned int cols, rows, overcols;
1806 |     Client *c;
1807 | 
1808 |     for (n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++);
1809 |     if (n == 0) return;
1810 |     if (n == 1) {
1811 |         c = nexttiled(m->clients);
1812 |         cw = (m->ww - 2 * gappo) * 0.6;
1813 |         ch = (m->wh - 2 * gappo) * 0.6;
1814 |         resize(c,
1815 |                m->mx + (m->mw - cw) / 2 + gappo,
1816 |                m->my + (m->mh - ch) / 2 + gappo,
1817 |                cw - 2 * c->bw,
1818 |                ch - 2 * c->bw,
1819 |                0);
1820 |         return;
1821 |     }
1822 |     if (n == 2) {
1823 |         c = nexttiled(m->clients);
1824 |         cw = (m->ww - 2 * gappo - gappi) / 2;
1825 |         ch = (m->wh - 2 * gappo) * 0.6;
1826 |         resize(c,
1827 |                m->mx + gappo,
1828 |                m->my + (m->mh - ch) / 2 + gappo,
1829 |                cw - 2 * c->bw,
1830 |                ch - 2 * c->bw,
1831 |                0);
1832 |         resize(nexttiled(c->next),
1833 |                m->mx + cw + gappo + gappi,
1834 |                m->my + (m->mh - ch) / 2 + gappo,
1835 |                cw - 2 * c->bw,
1836 |                ch - 2 * c->bw,
1837 |                0);
1838 |         return;
1839 |     }
1840 | 
1841 |     for (cols = 0; cols <= n / 2; cols++)
1842 |         if (cols * cols >= n)
1843 |             break;
1844 |     rows = (cols && (cols - 1) * cols >= n) ? cols - 1 : cols;
1845 | 	ch = (m->wh - 2 * gappo - (rows - 1) * gappi) / rows;
1846 | 	cw = (m->ww - 2 * gappo - (cols - 1) * gappi) / cols;
1847 | 
1848 |     overcols = n % cols;
1849 |     if (overcols)
1850 |         dx = (m->ww - overcols * cw - (overcols - 1) * gappi) / 2 - gappo;
1851 | 	for(i = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++) {
1852 |         cx = m->wx + (i % cols) * (cw + gappi);
1853 |         cy = m->wy + (i / cols) * (ch + gappi);
1854 |         if (overcols && i >= n - overcols) {
1855 |             cx += dx;
1856 |         }
1857 |         resize(c,
1858 |                cx + gappo,
1859 |                cy + gappo,
1860 |                cw - 2 * c->bw,
1861 |                ch - 2 * c->bw,
1862 |                0);
1863 | 	}
1864 | }
1865 | 
1866 | void
1867 | togglebar(const Arg *arg)
1868 | {
1869 | 	selmon->showbar = !selmon->showbar;
1870 | 	updatebarpos(selmon);
1871 | 	XMoveResizeWindow(dpy, selmon->barwin, selmon->wx, selmon->by, selmon->ww, bh);
1872 | 	arrange(selmon);
1873 | }
1874 | 
1875 | void
1876 | togglefloating(const Arg *arg)
1877 | {
1878 | 	if (!selmon->sel)
1879 | 		return;
1880 | 	if (selmon->sel->isfullscreen) /* no support for fullscreen windows */
1881 | 		return;
1882 | 	selmon->sel->isfloating = !selmon->sel->isfloating || selmon->sel->isfixed;
1883 |     if (selmon->sel->isfloating) {
1884 |         selmon->sel->x = selmon->wx + selmon->ww / 6,
1885 |         selmon->sel->y = selmon->wy + selmon->wh / 6,
1886 |         managefloating(selmon->sel);
1887 |         resize(selmon->sel, selmon->sel->x, selmon->sel->y, selmon->ww / 3 * 2, selmon->wh / 3 * 2, 0);
1888 |     }
1889 | 	arrange(selmon);
1890 | }
1891 | 
1892 | void
1893 | toggletag(const Arg *arg)
1894 | {
1895 | 	unsigned int newtags;
1896 | 
1897 | 	if (!selmon->sel)
1898 | 		return;
1899 | 	newtags = selmon->sel->tags ^ (arg->ui & TAGMASK);
1900 | 	if (newtags) {
1901 | 		selmon->sel->tags = newtags;
1902 | 		focus(NULL);
1903 | 		arrange(selmon);
1904 | 	}
1905 | }
1906 | 
1907 | void
1908 | toggleview(const Arg *arg)
1909 | {
1910 | 	unsigned int newtagset = selmon->tagset[selmon->seltags] ^ (arg->ui & TAGMASK);
1911 | 
1912 | 	if (newtagset) {
1913 | 		selmon->tagset[selmon->seltags] = newtagset;
1914 | 		focus(NULL);
1915 | 		arrange(selmon);
1916 | 	}
1917 | }
1918 | 
1919 | void
1920 | unfocus(Client *c, int setfocus)
1921 | {
1922 | 	if (!c)
1923 | 		return;
1924 | 	grabbuttons(c, 0);
1925 | 	XSetWindowBorder(dpy, c->win, scheme[SchemeNorm][ColBorder].pixel);
1926 | 	if (setfocus) {
1927 | 		XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
1928 | 		XDeleteProperty(dpy, root, netatom[NetActiveWindow]);
1929 | 	}
1930 | }
1931 | 
1932 | void
1933 | unmanage(Client *c, int destroyed)
1934 | {
1935 | 	Monitor *m = c->mon;
1936 | 	XWindowChanges wc;
1937 | 
1938 | 	detach(c);
1939 | 	detachstack(c);
1940 | 	if (!destroyed) {
1941 | 		wc.border_width = c->oldbw;
1942 | 		XGrabServer(dpy); /* avoid race conditions */
1943 | 		XSetErrorHandler(xerrordummy);
1944 | 		XConfigureWindow(dpy, c->win, CWBorderWidth, &wc); /* restore border */
1945 | 		XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
1946 | 		setclientstate(c, WithdrawnState);
1947 | 		XSync(dpy, False);
1948 | 		XSetErrorHandler(xerror);
1949 | 		XUngrabServer(dpy);
1950 | 	}
1951 | 	free(c);
1952 | 	focus(NULL);
1953 | 	updateclientlist();
1954 | 	arrange(m);
1955 | }
1956 | 
1957 | void
1958 | unmapnotify(XEvent *e)
1959 | {
1960 | 	Client *c;
1961 | 	XUnmapEvent *ev = &e->xunmap;
1962 | 
1963 | 	if ((c = wintoclient(ev->window))) {
1964 | 		if (ev->send_event)
1965 | 			setclientstate(c, WithdrawnState);
1966 | 		else
1967 | 			unmanage(c, 0);
1968 | 	}
1969 | }
1970 | 
1971 | void
1972 | updatebars(void)
1973 | {
1974 | 	Monitor *m;
1975 | 	XSetWindowAttributes wa = {
1976 | 		.override_redirect = True,
1977 | 		.background_pixmap = ParentRelative,
1978 | 		.event_mask = ButtonPressMask|ExposureMask
1979 | 	};
1980 | 	XClassHint ch = {"dwm", "dwm"};
1981 | 	for (m = mons; m; m = m->next) {
1982 | 		if (m->barwin)
1983 | 			continue;
1984 | 		m->barwin = XCreateWindow(dpy, root, m->wx, m->by, m->ww, bh, 0, DefaultDepth(dpy, screen),
1985 | 				CopyFromParent, DefaultVisual(dpy, screen),
1986 | 				CWOverrideRedirect|CWBackPixmap|CWEventMask, &wa);
1987 | 		XDefineCursor(dpy, m->barwin, cursor[CurNormal]->cursor);
1988 | 		XMapRaised(dpy, m->barwin);
1989 | 		XSetClassHint(dpy, m->barwin, &ch);
1990 | 	}
1991 | }
1992 | 
1993 | void
1994 | updatebarpos(Monitor *m)
1995 | {
1996 | 	m->wy = m->my;
1997 | 	m->wh = m->mh;
1998 | 	if (m->showbar) {
1999 | 		m->wh -= bh;
2000 | 		m->by = m->topbar ? m->wy : m->wy + m->wh;
2001 | 		m->wy = m->topbar ? m->wy + bh : m->wy;
2002 | 	} else
2003 | 		m->by = -bh;
2004 | }
2005 | 
2006 | void
2007 | updateclientlist()
2008 | {
2009 | 	Client *c;
2010 | 	Monitor *m;
2011 | 
2012 | 	XDeleteProperty(dpy, root, netatom[NetClientList]);
2013 | 	for (m = mons; m; m = m->next)
2014 | 		for (c = m->clients; c; c = c->next)
2015 | 			XChangeProperty(dpy, root, netatom[NetClientList],
2016 | 				XA_WINDOW, 32, PropModeAppend,
2017 | 				(unsigned char *) &(c->win), 1);
2018 | }
2019 | 
2020 | int
2021 | updategeom(void)
2022 | {
2023 | 	int dirty = 0;
2024 | 
2025 | #ifdef XINERAMA
2026 | 	if (XineramaIsActive(dpy)) {
2027 | 		int i, j, n, nn;
2028 | 		Client *c;
2029 | 		Monitor *m;
2030 | 		XineramaScreenInfo *info = XineramaQueryScreens(dpy, &nn);
2031 | 		XineramaScreenInfo *unique = NULL;
2032 | 
2033 | 		for (n = 0, m = mons; m; m = m->next, n++);
2034 | 		/* only consider unique geometries as separate screens */
2035 | 		unique = ecalloc(nn, sizeof(XineramaScreenInfo));
2036 | 		for (i = 0, j = 0; i < nn; i++)
2037 | 			if (isuniquegeom(unique, j, &info[i]))
2038 | 				memcpy(&unique[j++], &info[i], sizeof(XineramaScreenInfo));
2039 | 		XFree(info);
2040 | 		nn = j;
2041 | 
2042 | 		/* new monitors if nn > n */
2043 | 		for (i = n; i < nn; i++) {
2044 | 			for (m = mons; m && m->next; m = m->next);
2045 | 			if (m)
2046 | 				m->next = createmon();
2047 | 			else
2048 | 				mons = createmon();
2049 | 		}
2050 | 		for (i = 0, m = mons; i < nn && m; m = m->next, i++)
2051 | 			if (i >= n
2052 | 			|| unique[i].x_org != m->mx || unique[i].y_org != m->my
2053 | 			|| unique[i].width != m->mw || unique[i].height != m->mh)
2054 | 			{
2055 | 				dirty = 1;
2056 | 				m->num = i;
2057 | 				m->mx = m->wx = unique[i].x_org;
2058 | 				m->my = m->wy = unique[i].y_org;
2059 | 				m->mw = m->ww = unique[i].width;
2060 | 				m->mh = m->wh = unique[i].height;
2061 | 				updatebarpos(m);
2062 | 			}
2063 | 		/* removed monitors if n > nn */
2064 | 		for (i = nn; i < n; i++) {
2065 | 			for (m = mons; m && m->next; m = m->next);
2066 | 			while ((c = m->clients)) {
2067 | 				dirty = 1;
2068 | 				m->clients = c->next;
2069 | 				detachstack(c);
2070 | 				c->mon = mons;
2071 | 				attach(c);
2072 | 				attachstack(c);
2073 | 			}
2074 | 			if (m == selmon)
2075 | 				selmon = mons;
2076 | 			cleanupmon(m);
2077 | 		}
2078 | 		free(unique);
2079 | 	} else
2080 | #endif /* XINERAMA */
2081 | 	{ /* default monitor setup */
2082 | 		if (!mons)
2083 | 			mons = createmon();
2084 | 		if (mons->mw != sw || mons->mh != sh) {
2085 | 			dirty = 1;
2086 | 			mons->mw = mons->ww = sw;
2087 | 			mons->mh = mons->wh = sh;
2088 | 			updatebarpos(mons);
2089 | 		}
2090 | 	}
2091 | 	if (dirty) {
2092 | 		selmon = mons;
2093 | 		selmon = wintomon(root);
2094 | 	}
2095 | 	return dirty;
2096 | }
2097 | 
2098 | void
2099 | updatenumlockmask(void)
2100 | {
2101 | 	unsigned int i, j;
2102 | 	XModifierKeymap *modmap;
2103 | 
2104 | 	numlockmask = 0;
2105 | 	modmap = XGetModifierMapping(dpy);
2106 | 	for (i = 0; i < 8; i++)
2107 | 		for (j = 0; j < modmap->max_keypermod; j++)
2108 | 			if (modmap->modifiermap[i * modmap->max_keypermod + j]
2109 | 				== XKeysymToKeycode(dpy, XK_Num_Lock))
2110 | 				numlockmask = (1 << i);
2111 | 	XFreeModifiermap(modmap);
2112 | }
2113 | 
2114 | void
2115 | updatesizehints(Client *c)
2116 | {
2117 | 	long msize;
2118 | 	XSizeHints size;
2119 | 
2120 | 	if (!XGetWMNormalHints(dpy, c->win, &size, &msize))
2121 | 		/* size is uninitialized, ensure that size.flags aren't used */
2122 | 		size.flags = PSize;
2123 | 	if (size.flags & PBaseSize) {
2124 | 		c->basew = size.base_width;
2125 | 		c->baseh = size.base_height;
2126 | 	} else if (size.flags & PMinSize) {
2127 | 		c->basew = size.min_width;
2128 | 		c->baseh = size.min_height;
2129 | 	} else
2130 | 		c->basew = c->baseh = 0;
2131 | 	if (size.flags & PResizeInc) {
2132 | 		c->incw = size.width_inc;
2133 | 		c->inch = size.height_inc;
2134 | 	} else
2135 | 		c->incw = c->inch = 0;
2136 | 	if (size.flags & PMaxSize) {
2137 | 		c->maxw = size.max_width;
2138 | 		c->maxh = size.max_height;
2139 | 	} else
2140 | 		c->maxw = c->maxh = 0;
2141 | 	if (size.flags & PMinSize) {
2142 | 		c->minw = size.min_width;
2143 | 		c->minh = size.min_height;
2144 | 	} else if (size.flags & PBaseSize) {
2145 | 		c->minw = size.base_width;
2146 | 		c->minh = size.base_height;
2147 | 	} else
2148 | 		c->minw = c->minh = 0;
2149 | 	if (size.flags & PAspect) {
2150 | 		c->mina = (float)size.min_aspect.y / size.min_aspect.x;
2151 | 		c->maxa = (float)size.max_aspect.x / size.max_aspect.y;
2152 | 	} else
2153 | 		c->maxa = c->mina = 0.0;
2154 | 	c->isfixed = (c->maxw && c->maxh && c->maxw == c->minw && c->maxh == c->minh);
2155 | 	c->hintsvalid = 1;
2156 | }
2157 | 
2158 | void
2159 | updatestatus(void)
2160 | {
2161 | 	if (!gettextprop(root, XA_WM_NAME, stext, sizeof(stext)))
2162 | 		strcpy(stext, "dwm-"VERSION);
2163 | 	drawbar(selmon);
2164 | }
2165 | 
2166 | void
2167 | updatetitle(Client *c)
2168 | {
2169 | 	if (!gettextprop(c->win, netatom[NetWMName], c->name, sizeof c->name))
2170 | 		gettextprop(c->win, XA_WM_NAME, c->name, sizeof c->name);
2171 | 	if (c->name[0] == '\0') /* hack to mark broken clients */
2172 | 		strcpy(c->name, broken);
2173 | }
2174 | 
2175 | void
2176 | updatewindowtype(Client *c)
2177 | {
2178 | 	Atom state = getatomprop(c, netatom[NetWMState]);
2179 | 	Atom wtype = getatomprop(c, netatom[NetWMWindowType]);
2180 | 
2181 | 	if (state == netatom[NetWMFullscreen])
2182 | 		setfullscreen(c, 1);
2183 | 	if (wtype == netatom[NetWMWindowTypeDialog])
2184 | 		c->isfloating = 1;
2185 | }
2186 | 
2187 | void
2188 | updatewmhints(Client *c)
2189 | {
2190 | 	XWMHints *wmh;
2191 | 
2192 | 	if ((wmh = XGetWMHints(dpy, c->win))) {
2193 | 		if (c == selmon->sel && wmh->flags & XUrgencyHint) {
2194 | 			wmh->flags &= ~XUrgencyHint;
2195 | 			XSetWMHints(dpy, c->win, wmh);
2196 | 		} else
2197 | 			c->isurgent = (wmh->flags & XUrgencyHint) ? 1 : 0;
2198 | 		if (wmh->flags & InputHint)
2199 | 			c->neverfocus = !wmh->input;
2200 | 		else
2201 | 			c->neverfocus = 0;
2202 | 		XFree(wmh);
2203 | 	}
2204 | }
2205 | 
2206 | void
2207 | view(const Arg *arg)
2208 | {
2209 | 	if ((arg->ui & TAGMASK) == selmon->tagset[selmon->seltags]) {
2210 |         arrange(selmon);
2211 | 		return;
2212 |     }
2213 | 	selmon->seltags ^= 1; /* toggle sel tagset */
2214 | 	if (arg->ui & TAGMASK)
2215 | 		selmon->tagset[selmon->seltags] = arg->ui & TAGMASK;
2216 | 	focus(NULL);
2217 | 	arrange(selmon);
2218 | }
2219 | 
2220 | Client *
2221 | wintoclient(Window w)
2222 | {
2223 | 	Client *c;
2224 | 	Monitor *m;
2225 | 
2226 | 	for (m = mons; m; m = m->next)
2227 | 		for (c = m->clients; c; c = c->next)
2228 | 			if (c->win == w)
2229 | 				return c;
2230 | 	return NULL;
2231 | }
2232 | 
2233 | Monitor *
2234 | wintomon(Window w)
2235 | {
2236 | 	int x, y;
2237 | 	Client *c;
2238 | 	Monitor *m;
2239 | 
2240 | 	if (w == root && getrootptr(&x, &y))
2241 | 		return recttomon(x, y, 1, 1);
2242 | 	for (m = mons; m; m = m->next)
2243 | 		if (w == m->barwin)
2244 | 			return m;
2245 | 	if ((c = wintoclient(w)))
2246 | 		return c->mon;
2247 | 	return selmon;
2248 | }
2249 | 
2250 | /* There's no way to check accesses to destroyed windows, thus those cases are
2251 |  * ignored (especially on UnmapNotify's). Other types of errors call Xlibs
2252 |  * default error handler, which may call exit. */
2253 | int
2254 | xerror(Display *dpy, XErrorEvent *ee)
2255 | {
2256 | 	if (ee->error_code == BadWindow
2257 | 	|| (ee->request_code == X_SetInputFocus && ee->error_code == BadMatch)
2258 | 	|| (ee->request_code == X_PolyText8 && ee->error_code == BadDrawable)
2259 | 	|| (ee->request_code == X_PolyFillRectangle && ee->error_code == BadDrawable)
2260 | 	|| (ee->request_code == X_PolySegment && ee->error_code == BadDrawable)
2261 | 	|| (ee->request_code == X_ConfigureWindow && ee->error_code == BadMatch)
2262 | 	|| (ee->request_code == X_GrabButton && ee->error_code == BadAccess)
2263 | 	|| (ee->request_code == X_GrabKey && ee->error_code == BadAccess)
2264 | 	|| (ee->request_code == X_CopyArea && ee->error_code == BadDrawable))
2265 | 		return 0;
2266 | 	fprintf(stderr, "dwm: fatal error: request code=%d, error code=%d\n",
2267 | 		ee->request_code, ee->error_code);
2268 | 	return xerrorxlib(dpy, ee); /* may call exit */
2269 | }
2270 | 
2271 | int
2272 | xerrordummy(Display *dpy, XErrorEvent *ee)
2273 | {
2274 | 	return 0;
2275 | }
2276 | 
2277 | /* Startup Error handler to check if another window manager
2278 |  * is already running. */
2279 | int
2280 | xerrorstart(Display *dpy, XErrorEvent *ee)
2281 | {
2282 | 	die("dwm: another window manager is already running");
2283 | 	return -1;
2284 | }
2285 | 
2286 | void
2287 | zoom(const Arg *arg)
2288 | {
2289 | 	Client *c = selmon->sel;
2290 | 
2291 | 	if (!selmon->lt[selmon->sellt]->arrange
2292 | 	|| (selmon->sel && selmon->sel->isfloating))
2293 | 		return;
2294 | 	if (c == nexttiled(selmon->clients))
2295 | 		if (!c || !(c = nexttiled(c->next)))
2296 | 			return;
2297 | 	pop(c);
2298 | }
2299 | 
2300 | int
2301 | main(int argc, char *argv[])
2302 | {
2303 | 	if (argc == 2 && !strcmp("-v", argv[1]))
2304 | 		die("dwm-"VERSION);
2305 | 	else if (argc != 1)
2306 | 		die("usage: dwm [-v]");
2307 | 	if (!setlocale(LC_CTYPE, "") || !XSupportsLocale())
2308 | 		fputs("warning: no locale support\n", stderr);
2309 | 	if (!(dpy = XOpenDisplay(NULL)))
2310 | 		die("dwm: cannot open display");
2311 | 	checkotherwm();
2312 | 	setup();
2313 | #ifdef __OpenBSD__
2314 | 	if (pledge("stdio rpath proc exec", NULL) == -1)
2315 | 		die("pledge");
2316 | #endif /* __OpenBSD__ */
2317 | 	scan();
2318 | 	run();
2319 | 	cleanup();
2320 | 	XCloseDisplay(dpy);
2321 | 	return EXIT_SUCCESS;
2322 | }
2323 | 


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/dwm.png:
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https://raw.githubusercontent.com/yaocccc/dwms/f438b3bd3d9e79fb0fa11072d6f5fe1afc5ef495/dwm.png


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/transient.c:
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 1 | /* cc transient.c -o transient -lX11 */
 2 | 
 3 | #include <stdlib.h>
 4 | #include <unistd.h>
 5 | #include <X11/Xlib.h>
 6 | #include <X11/Xutil.h>
 7 | 
 8 | int main(void) {
 9 | 	Display *d;
10 | 	Window r, f, t = None;
11 | 	XSizeHints h;
12 | 	XEvent e;
13 | 
14 | 	d = XOpenDisplay(NULL);
15 | 	if (!d)
16 | 		exit(1);
17 | 	r = DefaultRootWindow(d);
18 | 
19 | 	f = XCreateSimpleWindow(d, r, 100, 100, 400, 400, 0, 0, 0);
20 | 	h.min_width = h.max_width = h.min_height = h.max_height = 400;
21 | 	h.flags = PMinSize | PMaxSize;
22 | 	XSetWMNormalHints(d, f, &h);
23 | 	XStoreName(d, f, "floating");
24 | 	XMapWindow(d, f);
25 | 
26 | 	XSelectInput(d, f, ExposureMask);
27 | 	while (1) {
28 | 		XNextEvent(d, &e);
29 | 
30 | 		if (t == None) {
31 | 			sleep(5);
32 | 			t = XCreateSimpleWindow(d, r, 50, 50, 100, 100, 0, 0, 0);
33 | 			XSetTransientForHint(d, t, f);
34 | 			XStoreName(d, t, "transient");
35 | 			XMapWindow(d, t);
36 | 			XSelectInput(d, t, ExposureMask);
37 | 		}
38 | 	}
39 | 
40 | 	XCloseDisplay(d);
41 | 	exit(0);
42 | }
43 | 


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/util.c:
--------------------------------------------------------------------------------
 1 | /* See LICENSE file for copyright and license details. */
 2 | #include <stdarg.h>
 3 | #include <stdio.h>
 4 | #include <stdlib.h>
 5 | #include <string.h>
 6 | 
 7 | #include "util.h"
 8 | 
 9 | void *
10 | ecalloc(size_t nmemb, size_t size)
11 | {
12 | 	void *p;
13 | 
14 | 	if (!(p = calloc(nmemb, size)))
15 | 		die("calloc:");
16 | 	return p;
17 | }
18 | 
19 | void
20 | die(const char *fmt, ...) {
21 | 	va_list ap;
22 | 
23 | 	va_start(ap, fmt);
24 | 	vfprintf(stderr, fmt, ap);
25 | 	va_end(ap);
26 | 
27 | 	if (fmt[0] && fmt[strlen(fmt)-1] == ':') {
28 | 		fputc(' ', stderr);
29 | 		perror(NULL);
30 | 	} else {
31 | 		fputc('\n', stderr);
32 | 	}
33 | 
34 | 	exit(1);
35 | }
36 | 


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/util.h:
--------------------------------------------------------------------------------
1 | /* See LICENSE file for copyright and license details. */
2 | 
3 | #define MAX(A, B)               ((A) > (B) ? (A) : (B))
4 | #define MIN(A, B)               ((A) < (B) ? (A) : (B))
5 | #define BETWEEN(X, A, B)        ((A) <= (X) && (X) <= (B))
6 | 
7 | void die(const char *fmt, ...);
8 | void *ecalloc(size_t nmemb, size_t size);
9 | 


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