migrate to birdwm name in all files - birdwm - birdwm - mrgrouse's daily driver fork of suckless' dwm. Contains many patches and is currently loosely maintained.

commit 9813b1948e48770bb966f9960910b26bfb6a81e0
parent b0f10d0431402f192cc1305de0489a93956af14f
Author: mrgrouse <mrgrouse@mrgrouse.com>
Date:   Thu, 27 Nov 2025 15:10:28 -0500

migrate to birdwm name in all files

Diffstat:
M Makefile  | 32 +++++++++++++++-----------------
M README  | 85 ++++++++++++++++++++++++++++++++++---------------------------------------------
A birdwm.1  | 209 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
A birdwm.c  | 2804 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
M config.mk  | 2 +-
D dwm.1  | 176 -------------------------------------------------------------------------------
D dwm.c  | 2804 -------------------------------------------------------------------------------
D dwm.png  | 0

8 files changed, 3066 insertions(+), 3046 deletions(-)
diff --git a/Makefile b/Makefile
@@ -1,12 +1,12 @@
-# dwm - dynamic window manager
+# birdwm - dynamic window manager
 # See LICENSE file for copyright and license details.
 
 include config.mk
 
-SRC = drw.c dwm.c util.c
+SRC = drw.c birdwm.c util.c
 OBJ = ${SRC:.c=.o}
 
-all: dwm
+all: birdwm
 
 .c.o:
 	${CC} -c ${CFLAGS} $<
@@ -16,30 +16,28 @@ ${OBJ}: config.h config.mk
 config.h:
 	cp config.def.h $@
 
-dwm: ${OBJ}
+birdwm: ${OBJ}
 	${CC} -o $@ ${OBJ} ${LDFLAGS}
 
 clean:
-	rm -f dwm ${OBJ} dwm-${VERSION}.tar.gz
+	rm -f birdwm ${OBJ} birdwm-${VERSION}.tar.gz
 
 dist: clean
-	mkdir -p dwm-${VERSION}
+	mkdir -p birdwm-${VERSION}
 	cp -R LICENSE Makefile README config.def.h config.mk\
-		dwm.1 drw.h util.h ${SRC} dwm.png transient.c dwm-${VERSION}
-	tar -cf dwm-${VERSION}.tar dwm-${VERSION}
-	gzip dwm-${VERSION}.tar
-	rm -rf dwm-${VERSION}
+		birdwm.1 drw.h util.h ${SRC} birdwm.png transient.c birdwm-${VERSION}
+	tar -cf birdwm-${VERSION}.tar birdwm-${VERSION}
+	gzip birdwm-${VERSION}.tar
+	rm -rf birdwm-${VERSION}
 
 install: all
-	mkdir -p ${DESTDIR}${PREFIX}/bin
-	cp -f dwm ${DESTDIR}${PREFIX}/bin
-	chmod 755 ${DESTDIR}${PREFIX}/bin/dwm
+	install -D -m 0755 birdwm ${DESTDIR}${PREFIX}/bin/birdwm
 	mkdir -p ${DESTDIR}${MANPREFIX}/man1
-	sed "s/VERSION/${VERSION}/g" < dwm.1 > ${DESTDIR}${MANPREFIX}/man1/dwm.1
-	chmod 644 ${DESTDIR}${MANPREFIX}/man1/dwm.1
+	sed "s/VERSION/${VERSION}/g" < birdwm.1 > ${DESTDIR}${MANPREFIX}/man1/birdwm.1
+	chmod 644 ${DESTDIR}${MANPREFIX}/man1/birdwm.1
 
 uninstall:
-	rm -f ${DESTDIR}${PREFIX}/bin/dwm\
-		${DESTDIR}${MANPREFIX}/man1/dwm.1
+	rm -f ${DESTDIR}${PREFIX}/bin/birdwm\
+		${DESTDIR}${MANPREFIX}/man1/birdwm.1
 
 .PHONY: all clean dist install uninstall
diff --git a/README b/README
@@ -1,48 +1,37 @@
-dwm - dynamic window manager
-============================
-dwm is an extremely fast, small, and dynamic window manager for X.
-
-
-Requirements
-------------
-In order to build dwm you need the Xlib header files.
-
-
-Installation
-------------
-Edit config.mk to match your local setup (dwm is installed into
-the /usr/local namespace by default).
-
-Afterwards enter the following command to build and install dwm (if
-necessary as root):
-
-    make clean install
-
-
-Running dwm
------------
-Add the following line to your .xinitrc to start dwm using startx:
-
-    exec dwm
-
-In order to connect dwm to a specific display, make sure that
-the DISPLAY environment variable is set correctly, e.g.:
-
-    DISPLAY=foo.bar:1 exec dwm
-
-(This will start dwm on display :1 of the host foo.bar.)
-
-In order to display status info in the bar, you can do something
-like this in your .xinitrc:
-
-    while xsetroot -name "`date` `uptime | sed 's/.*,//'`"
-    do
-    	sleep 1
-    done &
-    exec dwm
-
-
-Configuration
--------------
-The configuration of dwm is done by creating a custom config.h
-and (re)compiling the source code.
+# Birdwm, dwm for birds, by a bird!
+Birdwm
+
+## Dependencies:
+- libxinerama
+- freetype2
+- libev
+- execline (optional: only for my specific startup script in autostart/autostart.e)
+- a few more, i haven't checked yet (don't hurt me please)
+
+## Patches and Features
+
+- xrdb: Birdwm patch that reads Xresources colors/variables (i.e. works with `pywal`, etc.). (https://dwm.suckless.org/patches/xresources)
+- scratchpads: Accessible with mod + y. (https://dwm.suckless.org/patches/scratchpads)
+- uselessgaps: Adds useless gaps around windows, except in monocle mode. (https://dwm.suckless.org/patches/uselessgap)
+- alpha: Allows birdwm to have translucent bars, with opaque text. (https://dwm.suckless.org/patches/alpha)
+- systray: System tray patch for birdwm in the corner of the bar. (https://dwm.suckless.org/patches/systray)
+- winicon: Patch for birdwm to display the icon of currently focused program. (https://dwm.suckless.org/patches/winicon)
+- autostart (modified): runs selected script upon startup. (https://dwm.suckless.org/patches/autostart)
+- birdmenu-emoji (modified): runs dmenu-emoji script (modified for birdmenu), accessible via mod + e. (https://github.com/porras/dmenu-emoji)
+
+### Misc. features
+- various scripts (found in extras/): various shell scripts for things such as:
+  - setting and getting volume for/from pulse audio
+
+- strong compatibility with my forks of other suckless programs, such as:
+  - slstatus (https://git.mrgrouse.com/slstatus/log.html): a status bar with few patches for birdwm
+  - slock (https://git.mrgrouse.com/slock/log.html): a simple screen lock tool with Xresources compatibility
+  - birdmenu (https://git.mrgrouse.com/birdmenu/log.html): my dmenu fork, including Xresources, password mode, and mouse clickability.
+  - birdterm (https://git.mrgrouse.com/birdterm/log.html): my st (simple terminal) fork, including transparency and scrollback.
+
+## Installation for birdwm on linux distros
+### See `config.h` for customization options
+
+git clone https://git.mrgrouse.com/birdwm.git
+cd birdwm
+sudo make install
diff --git a/birdwm.1 b/birdwm.1
@@ -0,0 +1,209 @@
+.TH BIRDWM 1 birdwm\-VERSION
+.SH NAME
+birdwm \- dynamic window manager for birds
+.SH SYNOPSIS
+.B birdwm
+.RB [ \-v ]
+.SH DESCRIPTION
+birdwm is a dynamic window manager for birds. It manages windows in tiled, monocle
+and floating layouts. Either layout can be applied dynamically, optimising the
+environment for the application in use and the task performed.
+.P
+In tiled layouts windows are managed in a master and stacking area. The master
+area on the left contains one window by default, and the stacking area on the
+right contains all other windows. The number of master area windows can be
+adjusted from zero to an arbitrary number. In monocle layout all windows are
+maximised to the screen size. In floating layout windows can be resized and
+moved freely. Dialog windows are always managed floating, regardless of the
+layout applied.
+.P
+Windows are grouped by tags. Each window can be tagged with one or multiple
+tags. Selecting certain tags displays all windows with these tags.
+.P
+Each screen contains a small status bar which displays all available tags, the
+layout, the title of the focused window, and the text read from the root window
+name property, if the screen is focused. A floating window is indicated with an
+empty square and a maximised floating window is indicated with a filled square
+before the windows title.  The selected tags are indicated with a different
+color. The tags of the focused window are indicated with a filled square in the
+top left corner.  The tags which are applied to one or more windows are
+indicated with an empty square in the top left corner.
+.P
+birdwm draws a small border around windows to indicate the focus state.
+.P
+On start, birdwm can start additional programs that may be specified in two special
+shell scripts (see the FILES section below), autostart_blocking.sh and
+autostart.sh.  The former is executed first and birdwm will wait for its
+termination before starting.  The latter is executed in the background before
+birdwm enters its handler loop.
+.P
+Either of these files may be omitted.
+.SH OPTIONS
+.TP
+.B \-v
+prints version information to stderr, then exits.
+.SH USAGE
+.SS Status bar
+.TP
+.B X root window name
+is read and displayed in the status text area. It can be set with the
+.BR xsetroot (1)
+command.
+.TP
+.B Button1
+click on a tag label to display all windows with that tag, click on the layout
+label toggles between tiled and floating layout.
+.TP
+.B Button3
+click on a tag label adds/removes all windows with that tag to/from the view.
+.TP
+.B Mod1\-Button1
+click on a tag label applies that tag to the focused window.
+.TP
+.B Mod1\-Button3
+click on a tag label adds/removes that tag to/from the focused window.
+.SS Keyboard commands
+.TP
+.B Mod1\-Shift\-Return
+Start
+.BR st(1).
+.TP
+.B Mod1\-p
+Spawn
+.BR dmenu(1)
+for launching other programs.
+.TP
+.B Mod1\-,
+Focus previous screen, if any.
+.TP
+.B Mod1\-.
+Focus next screen, if any.
+.TP
+.B Mod1\-Shift\-,
+Send focused window to previous screen, if any.
+.TP
+.B Mod1\-Shift\-.
+Send focused window to next screen, if any.
+.TP
+.B Mod1\-b
+Toggles bar on and off.
+.TP
+.B Mod1\-t
+Sets tiled layout.
+.TP
+.B Mod1\-f
+Sets floating layout.
+.TP
+.B Mod1\-m
+Sets monocle layout.
+.TP
+.B Mod1\-space
+Toggles between current and previous layout.
+.TP
+.B Mod1\-j
+Focus next window.
+.TP
+.B Mod1\-k
+Focus previous window.
+.TP
+.B Mod1\-i
+Increase number of windows in master area.
+.TP
+.B Mod1\-d
+Decrease number of windows in master area.
+.TP
+.B Mod1\-l
+Increase master area size.
+.TP
+.B Mod1\-h
+Decrease master area size.
+.TP
+.B Mod1\-Return
+Zooms/cycles focused window to/from master area (tiled layouts only).
+.TP
+.B Mod1\-Shift\-c
+Close focused window.
+.TP
+.B Mod1\-Shift\-space
+Toggle focused window between tiled and floating state.
+.TP
+.B Mod1\-Tab
+Toggles to the previously selected tags.
+.TP
+.B Mod1\-Shift\-[1..n]
+Apply nth tag to focused window.
+.TP
+.B Mod1\-Shift\-0
+Apply all tags to focused window.
+.TP
+.B Mod1\-Control\-Shift\-[1..n]
+Add/remove nth tag to/from focused window.
+.TP
+.B Mod1\-[1..n]
+View all windows with nth tag.
+.TP
+.B Mod1\-0
+View all windows with any tag.
+.TP
+.B Mod1\-Control\-[1..n]
+Add/remove all windows with nth tag to/from the view.
+.TP
+.B Mod1\-Shift\-q
+Quit birdwm.
+.TP
+.B Mod1\-Control\-Shift\-q
+Restart birdwm.
+.SS Mouse commands
+.TP
+.B Mod1\-Button1
+Move focused window while dragging. Tiled windows will be toggled to the floating state.
+.TP
+.B Mod1\-Button2
+Toggles focused window between floating and tiled state.
+.TP
+.B Mod1\-Button3
+Resize focused window while dragging. Tiled windows will be toggled to the floating state.
+.SH FILES
+The files containing programs to be started along with birdwm are searched for in
+the following directories:
+.IP "1. $XDG_DATA_HOME/birdwm"
+.IP "2. $HOME/.local/share/birdwm"
+.IP "3. $HOME/.birdwm"
+.P
+The first existing directory is scanned for any of the autostart files below.
+.TP 15
+autostart.sh
+This file is started as a shell background process before birdwm enters its handler
+loop.
+.TP 15
+autostart_blocking.sh
+This file is started before any autostart.sh; birdwm waits for its termination.
+.SH CUSTOMIZATION
+birdwm is customized by creating a custom config.h and (re)compiling the source
+code. This keeps it fast, secure and simple.
+.SH SIGNALS
+.TP
+.B SIGHUP - 1
+Restart the birdwm process.
+.TP
+.B SIGTERM - 15
+Cleanly terminate the birdwm process.
+.SH SEE ALSO
+.BR dmenu (1),
+.BR st (1)
+.SH ISSUES
+Java applications which use the XToolkit/XAWT backend may draw grey windows
+only. The XToolkit/XAWT backend breaks ICCCM-compliance in recent JDK 1.5 and early
+JDK 1.6 versions, because it assumes a reparenting window manager. Possible workarounds
+are using JDK 1.4 (which doesn't contain the XToolkit/XAWT backend) or setting the
+environment variable
+.BR AWT_TOOLKIT=MToolkit
+(to use the older Motif backend instead) or running
+.B xprop -root -f _NET_WM_NAME 32a -set _NET_WM_NAME LG3D
+or
+.B wmname LG3D
+(to pretend that a non-reparenting window manager is running that the
+XToolkit/XAWT backend can recognize) or when using OpenJDK setting the environment variable
+.BR _JAVA_AWT_WM_NONREPARENTING=1 .
+.SH BUGS
+Send all bug reports with a patch to hackers@suckless.org.
diff --git a/birdwm.c b/birdwm.c
@@ -0,0 +1,2804 @@
+/* See LICENSE file for copyright and license details.
+ *
+ * dynamic window manager is designed like any other X client as well. It is
+ * driven through handling X events. In contrast to other X clients, a window
+ * manager selects for SubstructureRedirectMask on the root window, to receive
+ * events about window (dis-)appearance. Only one X connection at a time is
+ * allowed to select for this event mask.
+ *
+ * The event handlers of birdwm are organized in an array which is accessed
+ * whenever a new event has been fetched. This allows event dispatching
+ * in O(1) time.
+ *
+ * Each child of the root window is called a client, except windows which have
+ * set the override_redirect flag. Clients are organized in a linked client
+ * list on each monitor, the focus history is remembered through a stack list
+ * on each monitor. Each client contains a bit array to indicate the tags of a
+ * client.
+ *
+ * Keys and tagging rules are organized as arrays and defined in config.h.
+ *
+ * To understand everything else, start reading main().
+ */
+#include <errno.h>
+#include <locale.h>
+#include <signal.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <limits.h>
+#include <stdint.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <X11/cursorfont.h>
+#include <X11/keysym.h>
+#include <X11/Xatom.h>
+#include <X11/Xlib.h>
+#include <X11/Xproto.h>
+#include <X11/Xresource.h>
+#include <X11/Xutil.h>
+#ifdef XINERAMA
+#include <X11/extensions/Xinerama.h>
+#endif /* XINERAMA */
+#include <X11/Xft/Xft.h>
+
+#include "drw.h"
+#include "util.h"
+
+/* macros */
+#define BUTTONMASK              (ButtonPressMask|ButtonReleaseMask)
+#define CLEANMASK(mask)         (mask & ~(numlockmask|LockMask) & (ShiftMask|ControlMask|Mod1Mask|Mod2Mask|Mod3Mask|Mod4Mask|Mod5Mask))
+#define INTERSECT(x,y,w,h,m)    (MAX(0, MIN((x)+(w),(m)->wx+(m)->ww) - MAX((x),(m)->wx)) \
+                               * MAX(0, MIN((y)+(h),(m)->wy+(m)->wh) - MAX((y),(m)->wy)))
+#define ISVISIBLE(C)            ((C->tags & C->mon->tagset[C->mon->seltags]))
+#define MOUSEMASK               (BUTTONMASK|PointerMotionMask)
+#define WIDTH(X)                ((X)->w + 2 * (X)->bw + gappx)
+#define HEIGHT(X)               ((X)->h + 2 * (X)->bw + gappx)
+#define TAGMASK                 ((1 << LENGTH(tags)) - 1)
+#define TEXTW(X)                (drw_fontset_getwidth(drw, (X)) + lrpad)
+#define XRDB_LOAD_COLOR(R,V)    if (XrmGetResource(xrdb, R, NULL, &type, &value) == True) { \
+                                  if (value.addr != NULL && strnlen(value.addr, 8) == 7 && value.addr[0] == '#') { \
+                                    int i = 1; \
+                                    for (; i <= 6; i++) { \
+                                      if (value.addr[i] < 48) break; \
+                                      if (value.addr[i] > 57 && value.addr[i] < 65) break; \
+                                      if (value.addr[i] > 70 && value.addr[i] < 97) break; \
+                                      if (value.addr[i] > 102) break; \
+                                    } \
+                                    if (i == 7) { \
+                                      strncpy(V, value.addr, 7); \
+                                      V[7] = '\0'; \
+                                    } \
+                                  } \
+                                }
+
+#define SYSTEM_TRAY_REQUEST_DOCK    0
+/* XEMBED messages */
+#define XEMBED_EMBEDDED_NOTIFY      0
+#define XEMBED_WINDOW_ACTIVATE      1
+#define XEMBED_FOCUS_IN             4
+#define XEMBED_MODALITY_ON         10
+#define XEMBED_MAPPED              (1 << 0)
+#define XEMBED_WINDOW_ACTIVATE      1
+#define XEMBED_WINDOW_DEACTIVATE    2
+#define VERSION_MAJOR               0
+#define VERSION_MINOR               0
+#define XEMBED_EMBEDDED_VERSION (VERSION_MAJOR << 16) | VERSION_MINOR
+
+/* enums */
+enum { CurNormal, CurResize, CurMove, CurLast }; /* cursor */
+enum { SchemeNorm, SchemeSel }; /* color schemes */
+enum { NetSupported, NetWMName, NetWMIcon, NetWMState, NetWMCheck,
+       NetSystemTray, NetSystemTrayOP, NetSystemTrayOrientation, NetSystemTrayOrientationHorz,
+       NetWMFullscreen, NetActiveWindow, NetWMWindowType,
+       NetWMWindowTypeDialog, NetClientList, NetLast }; /* EWMH atoms */
+enum { Manager, Xembed, XembedInfo, XLast }; /* Xembed atoms */
+enum { WMProtocols, WMDelete, WMState, WMTakeFocus, WMLast }; /* default atoms */
+enum { ClkTagBar, ClkLtSymbol, ClkStatusText, ClkWinTitle,
+       ClkClientWin, ClkRootWin, ClkLast }; /* clicks */
+
+typedef union {
+	int i;
+	unsigned int ui;
+	float f;
+	const void *v;
+} Arg;
+
+typedef struct {
+	unsigned int click;
+	unsigned int mask;
+	unsigned int button;
+	void (*func)(const Arg *arg);
+	const Arg arg;
+} Button;
+
+typedef struct Monitor Monitor;
+typedef struct Client Client;
+struct Client {
+	char name[256];
+	float mina, maxa;
+	int x, y, w, h;
+	int oldx, oldy, oldw, oldh;
+	int basew, baseh, incw, inch, maxw, maxh, minw, minh, hintsvalid;
+	int bw, oldbw;
+	unsigned int tags;
+	int isfixed, isfloating, isurgent, neverfocus, oldstate, isfullscreen;
+	unsigned int icw, ich; Picture icon;
+	Client *next;
+	Client *snext;
+	Monitor *mon;
+	Window win;
+};
+
+typedef struct {
+	unsigned int mod;
+	KeySym keysym;
+	void (*func)(const Arg *);
+	const Arg arg;
+} Key;
+
+typedef struct {
+	const char *symbol;
+	void (*arrange)(Monitor *);
+} Layout;
+
+struct Monitor {
+	char ltsymbol[16];
+	float mfact;
+	int nmaster;
+	int num;
+	int by;               /* bar geometry */
+	int mx, my, mw, mh;   /* screen size */
+	int wx, wy, ww, wh;   /* window area  */
+	unsigned int seltags;
+	unsigned int sellt;
+	unsigned int tagset[2];
+	int showbar;
+	int topbar;
+	Client *clients;
+	Client *sel;
+	Client *stack;
+	Monitor *next;
+	Window barwin;
+	const Layout *lt[2];
+};
+
+typedef struct {
+	const char *class;
+	const char *instance;
+	const char *title;
+	unsigned int tags;
+	int isfloating;
+	int monitor;
+} Rule;
+
+typedef struct Systray   Systray;
+struct Systray {
+	Window win;
+	Client *icons;
+};
+
+/* function declarations */
+static void applyrules(Client *c);
+static int applysizehints(Client *c, int *x, int *y, int *w, int *h, int interact);
+static void arrange(Monitor *m);
+static void arrangemon(Monitor *m);
+static void attach(Client *c);
+static void attachstack(Client *c);
+static void buttonpress(XEvent *e);
+static void checkotherwm(void);
+static void cleanup(void);
+static void cleanupmon(Monitor *mon);
+static void clientmessage(XEvent *e);
+static void configure(Client *c);
+static void configurenotify(XEvent *e);
+static void configurerequest(XEvent *e);
+static Monitor *createmon(void);
+static void destroynotify(XEvent *e);
+static void detach(Client *c);
+static void detachstack(Client *c);
+static Monitor *dirtomon(int dir);
+static void drawbar(Monitor *m);
+static void drawbars(void);
+static void enternotify(XEvent *e);
+static void expose(XEvent *e);
+static void focus(Client *c);
+static void focusin(XEvent *e);
+static void focusmon(const Arg *arg);
+static void focusstack(const Arg *arg);
+static Atom getatomprop(Client *c, Atom prop);
+static Picture geticonprop(Window w, unsigned int *icw, unsigned int *ich);
+static int getrootptr(int *x, int *y);
+static long getstate(Window w);
+static unsigned int getsystraywidth();
+static int gettextprop(Window w, Atom atom, char *text, unsigned int size);
+static void grabbuttons(Client *c, int focused);
+static void grabkeys(void);
+static void incnmaster(const Arg *arg);
+static void keypress(XEvent *e);
+static void killclient(const Arg *arg);
+static void loadxrdb(void);
+static void manage(Window w, XWindowAttributes *wa);
+static void mappingnotify(XEvent *e);
+static void maprequest(XEvent *e);
+static void monocle(Monitor *m);
+static void motionnotify(XEvent *e);
+static void movemouse(const Arg *arg);
+static Client *nexttiled(Client *c);
+static void pop(Client *c);
+static void propertynotify(XEvent *e);
+static void quit(const Arg *arg);
+static Monitor *recttomon(int x, int y, int w, int h);
+static void removesystrayicon(Client *i);
+static void resize(Client *c, int x, int y, int w, int h, int interact);
+static void resizebarwin(Monitor *m);
+static void resizeclient(Client *c, int x, int y, int w, int h);
+static void resizemouse(const Arg *arg);
+static void resizerequest(XEvent *e);
+static void restack(Monitor *m);
+static void run(void);
+static void scan(void);
+static int sendevent(Window w, Atom proto, int m, long d0, long d1, long d2, long d3, long d4);
+static void sendmon(Client *c, Monitor *m);
+static void setclientstate(Client *c, long state);
+static void setfocus(Client *c);
+static void setfullscreen(Client *c, int fullscreen);
+static void setlayout(const Arg *arg);
+static void setmfact(const Arg *arg);
+static void setup(void);
+static void seturgent(Client *c, int urg);
+static void showhide(Client *c);
+static void spawn(const Arg *arg);
+static Monitor *systraytomon(Monitor *m);
+static void tag(const Arg *arg);
+static void tagmon(const Arg *arg);
+static void tile(Monitor *m);
+static void togglebar(const Arg *arg);
+static void togglefloating(const Arg *arg);
+static void togglescratch(const Arg *arg);
+static void toggletag(const Arg *arg);
+static void toggleview(const Arg *arg);
+static void freeicon(Client *c);
+static void unfocus(Client *c, int setfocus);
+static void unmanage(Client *c, int destroyed);
+static void unmapnotify(XEvent *e);
+static void updatebarpos(Monitor *m);
+static void updatebars(void);
+static void updateclientlist(void);
+static int updategeom(void);
+static void updatenumlockmask(void);
+static void updatesizehints(Client *c);
+static void updatestatus(void);
+static void updatesystray(void);
+static void updatesystrayicongeom(Client *i, int w, int h);
+static void updatesystrayiconstate(Client *i, XPropertyEvent *ev);
+static void updatetitle(Client *c);
+static void updateicon(Client *c);
+static void updatewindowtype(Client *c);
+static void updatewmhints(Client *c);
+static void view(const Arg *arg);
+static Client *wintoclient(Window w);
+static Monitor *wintomon(Window w);
+static Client *wintosystrayicon(Window w);
+static int xerror(Display *dpy, XErrorEvent *ee);
+static int xerrordummy(Display *dpy, XErrorEvent *ee);
+static int xerrorstart(Display *dpy, XErrorEvent *ee);
+static void xrdb(const Arg *arg);
+static void zoom(const Arg *arg);
+static void autostart_exec(void);
+
+/* variables */
+static Systray *systray = NULL;
+static const char broken[] = "broken";
+static char stext[256];
+static int screen;
+static int sw, sh;           /* X display screen geometry width, height */
+static int bh;               /* bar height */
+static int lrpad;            /* sum of left and right padding for text */
+static int vp;               /* vertical padding for bar */
+static int sp;               /* side padding for bar */
+static int (*xerrorxlib)(Display *, XErrorEvent *);
+static unsigned int numlockmask = 0;
+static void (*handler[LASTEvent]) (XEvent *) = {
+	[ButtonPress] = buttonpress,
+	[ClientMessage] = clientmessage,
+	[ConfigureRequest] = configurerequest,
+	[ConfigureNotify] = configurenotify,
+	[DestroyNotify] = destroynotify,
+	[EnterNotify] = enternotify,
+	[Expose] = expose,
+	[FocusIn] = focusin,
+	[KeyPress] = keypress,
+	[MappingNotify] = mappingnotify,
+	[MapRequest] = maprequest,
+	[MotionNotify] = motionnotify,
+	[PropertyNotify] = propertynotify,
+	[ResizeRequest] = resizerequest,
+	[UnmapNotify] = unmapnotify
+};
+static Atom wmatom[WMLast], netatom[NetLast], xatom[XLast];
+static int running = 1;
+static Cur *cursor[CurLast];
+static Clr **scheme;
+static Display *dpy;
+static Drw *drw;
+static Monitor *mons, *selmon;
+static Window root, wmcheckwin;
+
+/* configuration, allows nested code to access above variables */
+#include "config.h"
+
+static unsigned int scratchtag = 1 << LENGTH(tags);
+
+/* compile-time check if all tags fit into an unsigned int bit array. */
+struct NumTags { char limitexceeded[LENGTH(tags) > 31 ? -1 : 1]; };
+
+/* birdwm will keep pid's of processes from autostart array and kill them at quit */
+static pid_t *autostart_pids;
+static size_t autostart_len;
+
+/* execute command from autostart array */
+static void
+autostart_exec() {
+	const char *const *p;
+	size_t i = 0;
+
+	/* count entries */
+	for (p = autostart; *p; autostart_len++, p++)
+		while (*++p);
+
+	autostart_pids = malloc(autostart_len * sizeof(pid_t));
+	for (p = autostart; *p; i++, p++) {
+		if ((autostart_pids[i] = fork()) == 0) {
+			setsid();
+			execvp(*p, (char *const *)p);
+			fprintf(stderr, "birdwm: execvp %s\n", *p);
+			perror(" failed");
+			_exit(EXIT_FAILURE);
+		}
+		/* skip arguments */
+		while (*++p);
+	}
+}
+
+
+
+/* function implementations */
+void
+applyrules(Client *c)
+{
+	const char *class, *instance;
+	unsigned int i;
+	const Rule *r;
+	Monitor *m;
+	XClassHint ch = { NULL, NULL };
+
+	/* rule matching */
+	c->isfloating = 0;
+	c->tags = 0;
+	XGetClassHint(dpy, c->win, &ch);
+	class    = ch.res_class ? ch.res_class : broken;
+	instance = ch.res_name  ? ch.res_name  : broken;
+
+	for (i = 0; i < LENGTH(rules); i++) {
+		r = &rules[i];
+		if ((!r->title || strstr(c->name, r->title))
+		&& (!r->class || strstr(class, r->class))
+		&& (!r->instance || strstr(instance, r->instance)))
+		{
+			c->isfloating = r->isfloating;
+			c->tags |= r->tags;
+			for (m = mons; m && m->num != r->monitor; m = m->next);
+			if (m)
+				c->mon = m;
+		}
+	}
+	if (ch.res_class)
+		XFree(ch.res_class);
+	if (ch.res_name)
+		XFree(ch.res_name);
+	c->tags = c->tags & TAGMASK ? c->tags & TAGMASK : c->mon->tagset[c->mon->seltags];
+}
+
+int
+applysizehints(Client *c, int *x, int *y, int *w, int *h, int interact)
+{
+	int baseismin;
+	Monitor *m = c->mon;
+
+	/* set minimum possible */
+	*w = MAX(1, *w);
+	*h = MAX(1, *h);
+	if (interact) {
+		if (*x > sw)
+			*x = sw - WIDTH(c);
+		if (*y > sh)
+			*y = sh - HEIGHT(c);
+		if (*x + *w + 2 * c->bw < 0)
+			*x = 0;
+		if (*y + *h + 2 * c->bw < 0)
+			*y = 0;
+	} else {
+		if (*x >= m->wx + m->ww)
+			*x = m->wx + m->ww - WIDTH(c);
+		if (*y >= m->wy + m->wh)
+			*y = m->wy + m->wh - HEIGHT(c);
+		if (*x + *w + 2 * c->bw <= m->wx)
+			*x = m->wx;
+		if (*y + *h + 2 * c->bw <= m->wy)
+			*y = m->wy;
+	}
+	if (*h < bh)
+		*h = bh;
+	if (*w < bh)
+		*w = bh;
+	if (resizehints || c->isfloating || !c->mon->lt[c->mon->sellt]->arrange) {
+		if (!c->hintsvalid)
+			updatesizehints(c);
+		/* see last two sentences in ICCCM 4.1.2.3 */
+		baseismin = c->basew == c->minw && c->baseh == c->minh;
+		if (!baseismin) { /* temporarily remove base dimensions */
+			*w -= c->basew;
+			*h -= c->baseh;
+		}
+		/* adjust for aspect limits */
+		if (c->mina > 0 && c->maxa > 0) {
+			if (c->maxa < (float)*w / *h)
+				*w = *h * c->maxa + 0.5;
+			else if (c->mina < (float)*h / *w)
+				*h = *w * c->mina + 0.5;
+		}
+		if (baseismin) { /* increment calculation requires this */
+			*w -= c->basew;
+			*h -= c->baseh;
+		}
+		/* adjust for increment value */
+		if (c->incw)
+			*w -= *w % c->incw;
+		if (c->inch)
+			*h -= *h % c->inch;
+		/* restore base dimensions */
+		*w = MAX(*w + c->basew, c->minw);
+		*h = MAX(*h + c->baseh, c->minh);
+		if (c->maxw)
+			*w = MIN(*w, c->maxw);
+		if (c->maxh)
+			*h = MIN(*h, c->maxh);
+	}
+	return *x != c->x || *y != c->y || *w != c->w || *h != c->h;
+}
+
+void
+arrange(Monitor *m)
+{
+	if (m)
+		showhide(m->stack);
+	else for (m = mons; m; m = m->next)
+		showhide(m->stack);
+	if (m) {
+		arrangemon(m);
+		restack(m);
+	} else for (m = mons; m; m = m->next)
+		arrangemon(m);
+}
+
+void
+arrangemon(Monitor *m)
+{
+	strncpy(m->ltsymbol, m->lt[m->sellt]->symbol, sizeof m->ltsymbol);
+	if (m->lt[m->sellt]->arrange)
+		m->lt[m->sellt]->arrange(m);
+}
+
+void
+attach(Client *c)
+{
+	c->next = c->mon->clients;
+	c->mon->clients = c;
+}
+
+void
+attachstack(Client *c)
+{
+	c->snext = c->mon->stack;
+	c->mon->stack = c;
+}
+
+void
+buttonpress(XEvent *e)
+{
+	unsigned int i, x, click;
+	Arg arg = {0};
+	Client *c;
+	Monitor *m;
+	XButtonPressedEvent *ev = &e->xbutton;
+
+	click = ClkRootWin;
+	/* focus monitor if necessary */
+	if ((m = wintomon(ev->window)) && m != selmon) {
+		unfocus(selmon->sel, 1);
+		selmon = m;
+		focus(NULL);
+	}
+	if (ev->window == selmon->barwin) {
+		i = x = 0;
+		do
+			x += TEXTW(tags[i]);
+		while (ev->x >= x && ++i < LENGTH(tags));
+		if (i < LENGTH(tags)) {
+			click = ClkTagBar;
+			arg.ui = 1 << i;
+		} else if (ev->x < x + TEXTW(selmon->ltsymbol))
+			click = ClkLtSymbol;
+		else if (ev->x > selmon->ww - (int)TEXTW(stext) - getsystraywidth())
+			click = ClkStatusText;
+		else
+			click = ClkWinTitle;
+	} else if ((c = wintoclient(ev->window))) {
+		focus(c);
+		restack(selmon);
+		XAllowEvents(dpy, ReplayPointer, CurrentTime);
+		click = ClkClientWin;
+	}
+	for (i = 0; i < LENGTH(buttons); i++)
+		if (click == buttons[i].click && buttons[i].func && buttons[i].button == ev->button
+		&& CLEANMASK(buttons[i].mask) == CLEANMASK(ev->state))
+			buttons[i].func(click == ClkTagBar && buttons[i].arg.i == 0 ? &arg : &buttons[i].arg);
+}
+
+void
+checkotherwm(void)
+{
+	xerrorxlib = XSetErrorHandler(xerrorstart);
+	/* this causes an error if some other window manager is running */
+	XSelectInput(dpy, DefaultRootWindow(dpy), SubstructureRedirectMask);
+	XSync(dpy, False);
+	XSetErrorHandler(xerror);
+	XSync(dpy, False);
+}
+
+void
+cleanup(void)
+{
+	Arg a = {.ui = ~0};
+	Layout foo = { "", NULL };
+	Monitor *m;
+	size_t i;
+
+	view(&a);
+	selmon->lt[selmon->sellt] = &foo;
+	for (m = mons; m; m = m->next)
+		while (m->stack)
+			unmanage(m->stack, 0);
+	XUngrabKey(dpy, AnyKey, AnyModifier, root);
+	while (mons)
+		cleanupmon(mons);
+
+	if (showsystray) {
+		XUnmapWindow(dpy, systray->win);
+		XDestroyWindow(dpy, systray->win);
+		free(systray);
+	}
+
+	for (i = 0; i < CurLast; i++)
+		drw_cur_free(drw, cursor[i]);
+	for (i = 0; i < LENGTH(colors); i++)
+		free(scheme[i]);
+	free(scheme);
+	XDestroyWindow(dpy, wmcheckwin);
+	drw_free(drw);
+	XSync(dpy, False);
+	XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
+	XDeleteProperty(dpy, root, netatom[NetActiveWindow]);
+}
+
+void
+cleanupmon(Monitor *mon)
+{
+	Monitor *m;
+
+	if (mon == mons)
+		mons = mons->next;
+	else {
+		for (m = mons; m && m->next != mon; m = m->next);
+		m->next = mon->next;
+	}
+	XUnmapWindow(dpy, mon->barwin);
+	XDestroyWindow(dpy, mon->barwin);
+	free(mon);
+}
+
+void
+clientmessage(XEvent *e)
+{
+	XWindowAttributes wa;
+	XSetWindowAttributes swa;
+	XClientMessageEvent *cme = &e->xclient;
+	Client *c = wintoclient(cme->window);
+
+	if (showsystray && cme->window == systray->win && cme->message_type == netatom[NetSystemTrayOP]) {
+		/* add systray icons */
+		if (cme->data.l[1] == SYSTEM_TRAY_REQUEST_DOCK) {
+			if (!(c = (Client *)calloc(1, sizeof(Client))))
+				die("fatal: could not malloc() %u bytes\n", sizeof(Client));
+			if (!(c->win = cme->data.l[2])) {
+				free(c);
+				return;
+			}
+			c->mon = selmon;
+			c->next = systray->icons;
+			systray->icons = c;
+			if (!XGetWindowAttributes(dpy, c->win, &wa)) {
+				/* use sane defaults */
+				wa.width = bh;
+				wa.height = bh;
+				wa.border_width = 0;
+			}
+			c->x = c->oldx = c->y = c->oldy = 0;
+			c->w = c->oldw = wa.width;
+			c->h = c->oldh = wa.height;
+			c->oldbw = wa.border_width;
+			c->bw = 0;
+			c->isfloating = True;
+			/* reuse tags field as mapped status */
+			c->tags = 1;
+			updatesizehints(c);
+			updatesystrayicongeom(c, wa.width, wa.height);
+			XAddToSaveSet(dpy, c->win);
+			XSelectInput(dpy, c->win, StructureNotifyMask | PropertyChangeMask | ResizeRedirectMask);
+			XReparentWindow(dpy, c->win, systray->win, 0, 0);
+			/* use parents background color */
+			swa.background_pixel  = scheme[SchemeNorm][ColBg].pixel;
+			XChangeWindowAttributes(dpy, c->win, CWBackPixel, &swa);
+			sendevent(c->win, netatom[Xembed], StructureNotifyMask, CurrentTime, XEMBED_EMBEDDED_NOTIFY, 0 , systray->win, XEMBED_EMBEDDED_VERSION);
+			/* FIXME not sure if I have to send these events, too */
+			sendevent(c->win, netatom[Xembed], StructureNotifyMask, CurrentTime, XEMBED_FOCUS_IN, 0 , systray->win, XEMBED_EMBEDDED_VERSION);
+			sendevent(c->win, netatom[Xembed], StructureNotifyMask, CurrentTime, XEMBED_WINDOW_ACTIVATE, 0 , systray->win, XEMBED_EMBEDDED_VERSION);
+			sendevent(c->win, netatom[Xembed], StructureNotifyMask, CurrentTime, XEMBED_MODALITY_ON, 0 , systray->win, XEMBED_EMBEDDED_VERSION);
+			XSync(dpy, False);
+			resizebarwin(selmon);
+			updatesystray();
+			setclientstate(c, NormalState);
+		}
+		return;
+	}
+
+	if (!c)
+		return;
+	if (cme->message_type == netatom[NetWMState]) {
+		if (cme->data.l[1] == netatom[NetWMFullscreen]
+		|| cme->data.l[2] == netatom[NetWMFullscreen])
+			setfullscreen(c, (cme->data.l[0] == 1 /* _NET_WM_STATE_ADD    */
+				|| (cme->data.l[0] == 2 /* _NET_WM_STATE_TOGGLE */ && !c->isfullscreen)));
+	} else if (cme->message_type == netatom[NetActiveWindow]) {
+		if (c != selmon->sel && !c->isurgent)
+			seturgent(c, 1);
+	}
+}
+
+void
+configure(Client *c)
+{
+	XConfigureEvent ce;
+
+	ce.type = ConfigureNotify;
+	ce.display = dpy;
+	ce.event = c->win;
+	ce.window = c->win;
+	ce.x = c->x;
+	ce.y = c->y;
+	ce.width = c->w;
+	ce.height = c->h;
+	ce.border_width = c->bw;
+	ce.above = None;
+	ce.override_redirect = False;
+	XSendEvent(dpy, c->win, False, StructureNotifyMask, (XEvent *)&ce);
+}
+
+void
+configurenotify(XEvent *e)
+{
+	Monitor *m;
+	Client *c;
+	XConfigureEvent *ev = &e->xconfigure;
+	int dirty;
+
+	/* TODO: updategeom handling sucks, needs to be simplified */
+	if (ev->window == root) {
+		dirty = (sw != ev->width || sh != ev->height);
+		sw = ev->width;
+		sh = ev->height;
+		if (updategeom() || dirty) {
+			drw_resize(drw, sw, bh);
+			updatebars();
+			for (m = mons; m; m = m->next) {
+				for (c = m->clients; c; c = c->next)
+					if (c->isfullscreen)
+						resizeclient(c, m->mx, m->my, m->mw, m->mh);
+				//XMoveResizeWindow(dpy, m->barwin, m->wx + sp, m->by + vp, m->ww -  2 * sp, bh);
+				resizebarwin(m);
+			}
+			focus(NULL);
+			arrange(NULL);
+		}
+	}
+}
+
+void
+configurerequest(XEvent *e)
+{
+	Client *c;
+	Monitor *m;
+	XConfigureRequestEvent *ev = &e->xconfigurerequest;
+	XWindowChanges wc;
+
+	if ((c = wintoclient(ev->window))) {
+		if (ev->value_mask & CWBorderWidth)
+			c->bw = ev->border_width;
+		else if (c->isfloating || !selmon->lt[selmon->sellt]->arrange) {
+			m = c->mon;
+			if (ev->value_mask & CWX) {
+				c->oldx = c->x;
+				c->x = m->mx + ev->x;
+			}
+			if (ev->value_mask & CWY) {
+				c->oldy = c->y;
+				c->y = m->my + ev->y;
+			}
+			if (ev->value_mask & CWWidth) {
+				c->oldw = c->w;
+				c->w = ev->width;
+			}
+			if (ev->value_mask & CWHeight) {
+				c->oldh = c->h;
+				c->h = ev->height;
+			}
+			if ((c->x + c->w) > m->mx + m->mw && c->isfloating)
+				c->x = m->mx + (m->mw / 2 - WIDTH(c) / 2); /* center in x direction */
+			if ((c->y + c->h) > m->my + m->mh && c->isfloating)
+				c->y = m->my + (m->mh / 2 - HEIGHT(c) / 2); /* center in y direction */
+			if ((ev->value_mask & (CWX|CWY)) && !(ev->value_mask & (CWWidth|CWHeight)))
+				configure(c);
+			if (ISVISIBLE(c))
+				XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h);
+		} else
+			configure(c);
+	} else {
+		wc.x = ev->x;
+		wc.y = ev->y;
+		wc.width = ev->width;
+		wc.height = ev->height;
+		wc.border_width = ev->border_width;
+		wc.sibling = ev->above;
+		wc.stack_mode = ev->detail;
+		XConfigureWindow(dpy, ev->window, ev->value_mask, &wc);
+	}
+	XSync(dpy, False);
+}
+
+Monitor *
+createmon(void)
+{
+	Monitor *m;
+
+	m = ecalloc(1, sizeof(Monitor));
+	m->tagset[0] = m->tagset[1] = 1;
+	m->mfact = mfact;
+	m->nmaster = nmaster;
+	m->showbar = showbar;
+	m->topbar = topbar;
+	m->lt[0] = &layouts[0];
+	m->lt[1] = &layouts[1 % LENGTH(layouts)];
+	strncpy(m->ltsymbol, layouts[0].symbol, sizeof m->ltsymbol);
+	return m;
+}
+
+void
+destroynotify(XEvent *e)
+{
+	Client *c;
+	XDestroyWindowEvent *ev = &e->xdestroywindow;
+
+	if ((c = wintoclient(ev->window)))
+		unmanage(c, 1);
+	else if ((c = wintosystrayicon(ev->window))) {
+		removesystrayicon(c);
+		resizebarwin(selmon);
+		updatesystray();
+	}
+}
+
+void
+detach(Client *c)
+{
+	Client **tc;
+
+	for (tc = &c->mon->clients; *tc && *tc != c; tc = &(*tc)->next);
+	*tc = c->next;
+}
+
+void
+detachstack(Client *c)
+{
+	Client **tc, *t;
+
+	for (tc = &c->mon->stack; *tc && *tc != c; tc = &(*tc)->snext);
+	*tc = c->snext;
+
+	if (c == c->mon->sel) {
+		for (t = c->mon->stack; t && !ISVISIBLE(t); t = t->snext);
+		c->mon->sel = t;
+	}
+}
+
+Monitor *
+dirtomon(int dir)
+{
+	Monitor *m = NULL;
+
+	if (dir > 0) {
+		if (!(m = selmon->next))
+			m = mons;
+	} else if (selmon == mons)
+		for (m = mons; m->next; m = m->next);
+	else
+		for (m = mons; m->next != selmon; m = m->next);
+	return m;
+}
+
+void
+drawbar(Monitor *m)
+{
+	int x, w, tw = 0, stw = 0;
+	int boxs = drw->fonts->h / 9;
+	int boxw = drw->fonts->h / 6 + 2;
+	unsigned int i, occ = 0, urg = 0;
+	Client *c;
+
+	if (!m->showbar)
+		return;
+
+	if (showsystray && m == systraytomon(m) && !systrayonleft)
+		stw = getsystraywidth();
+
+	/* draw status first so it can be overdrawn by tags later */
+	if (m == selmon) { /* status is only drawn on selected monitor */
+		drw_setscheme(drw, scheme[SchemeNorm]);
+		tw = TEXTW(stext) - lrpad / 2 + 2; /* 2px right padding */
+		drw_text(drw, m->ww - tw - stw - 2 * sp, 0, sw, bh, lrpad / 2 - 2, stext, 0);
+	}
+
+	resizebarwin(m);
+	for (c = m->clients; c; c = c->next) {
+		occ |= c->tags;
+		if (c->isurgent)
+			urg |= c->tags;
+	}
+	x = 0;
+	for (i = 0; i < LENGTH(tags); i++) {
+		w = TEXTW(tags[i]);
+		drw_setscheme(drw, scheme[m->tagset[m->seltags] & 1 << i ? SchemeSel : SchemeNorm]);
+		drw_text(drw, x, 0, w, bh, lrpad / 2, tags[i], urg & 1 << i);
+		if (occ & 1 << i)
+			drw_rect(drw, x + boxs, boxs, boxw, boxw,
+				m == selmon && selmon->sel && selmon->sel->tags & 1 << i,
+				urg & 1 << i);
+		x += w;
+	}
+	w = TEXTW(m->ltsymbol);
+	drw_setscheme(drw, scheme[SchemeNorm]);
+	x = drw_text(drw, x, 0, w, bh, lrpad / 2, m->ltsymbol, 0);
+
+	if ((w = m->ww - tw - stw - x) > bh) {
+		if (m->sel) {
+			drw_setscheme(drw, scheme[m == selmon ? SchemeSel : SchemeNorm]);
+			drw_text(drw, x, 0, w - 2 * sp, bh, lrpad / 2 + (m->sel->icon ? m->sel->icw + ICONSPACING : 0), m->sel->name, 0);
+			if (m->sel->icon) drw_pic(drw, x + lrpad / 2, (bh -m->sel->ich) / 2, m->sel->icw, m->sel->ich, m->sel->icon);
+			if (m->sel->isfloating)
+				drw_rect(drw, x + boxs, boxs, boxw, boxw, m->sel->isfixed, 0);
+		} else {
+			drw_setscheme(drw, scheme[SchemeNorm]);
+			drw_rect(drw, x, 0, w - 2 * sp, bh, 1, 1);
+		}
+	}
+	drw_map(drw, m->barwin, 0, 0, m->ww - stw, bh);
+}
+
+void
+drawbars(void)
+{
+	Monitor *m;
+
+	for (m = mons; m; m = m->next)
+		drawbar(m);
+}
+
+void
+enternotify(XEvent *e)
+{
+	Client *c;
+	Monitor *m;
+	XCrossingEvent *ev = &e->xcrossing;
+
+	if ((ev->mode != NotifyNormal || ev->detail == NotifyInferior) && ev->window != root)
+		return;
+	c = wintoclient(ev->window);
+	m = c ? c->mon : wintomon(ev->window);
+	if (m != selmon) {
+		unfocus(selmon->sel, 1);
+		selmon = m;
+	} else if (!c || c == selmon->sel)
+		return;
+	focus(c);
+}
+
+void
+expose(XEvent *e)
+{
+	Monitor *m;
+	XExposeEvent *ev = &e->xexpose;
+
+	if (ev->count == 0 && (m = wintomon(ev->window))) {
+		drawbar(m);
+		if (m == selmon)
+			updatesystray();
+	}
+}
+
+void
+focus(Client *c)
+{
+	if (!c || !ISVISIBLE(c))
+		for (c = selmon->stack; c && !ISVISIBLE(c); c = c->snext);
+	if (selmon->sel && selmon->sel != c)
+		unfocus(selmon->sel, 0);
+	if (c) {
+		if (c->mon != selmon)
+			selmon = c->mon;
+		if (c->isurgent)
+			seturgent(c, 0);
+		detachstack(c);
+		attachstack(c);
+		grabbuttons(c, 1);
+		XSetWindowBorder(dpy, c->win, scheme[SchemeSel][ColBorder].pixel);
+		setfocus(c);
+	} else {
+		XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
+		XDeleteProperty(dpy, root, netatom[NetActiveWindow]);
+	}
+	selmon->sel = c;
+	drawbars();
+}
+
+/* there are some broken focus acquiring clients needing extra handling */
+void
+focusin(XEvent *e)
+{
+	XFocusChangeEvent *ev = &e->xfocus;
+
+	if (selmon->sel && ev->window != selmon->sel->win)
+		setfocus(selmon->sel);
+}
+
+void
+focusmon(const Arg *arg)
+{
+	Monitor *m;
+
+	if (!mons->next)
+		return;
+	if ((m = dirtomon(arg->i)) == selmon)
+		return;
+	unfocus(selmon->sel, 0);
+	selmon = m;
+	focus(NULL);
+}
+
+void
+focusstack(const Arg *arg)
+{
+	Client *c = NULL, *i;
+
+	if (!selmon->sel || (selmon->sel->isfullscreen && lockfullscreen))
+		return;
+	if (arg->i > 0) {
+		for (c = selmon->sel->next; c && !ISVISIBLE(c); c = c->next);
+		if (!c)
+			for (c = selmon->clients; c && !ISVISIBLE(c); c = c->next);
+	} else {
+		for (i = selmon->clients; i != selmon->sel; i = i->next)
+			if (ISVISIBLE(i))
+				c = i;
+		if (!c)
+			for (; i; i = i->next)
+				if (ISVISIBLE(i))
+					c = i;
+	}
+	if (c) {
+		focus(c);
+		restack(selmon);
+	}
+}
+
+Atom
+getatomprop(Client *c, Atom prop)
+{
+	int di;
+	unsigned long dl;
+	unsigned char *p = NULL;
+	Atom da, atom = None;
+
+	/* FIXME getatomprop should return the number of items and a pointer to
+	 * the stored data instead of this workaround */
+	Atom req = XA_ATOM;
+	if (prop == xatom[XembedInfo])
+		req = xatom[XembedInfo];
+
+	if (XGetWindowProperty(dpy, c->win, prop, 0L, sizeof atom, False, req,
+		&da, &di, &dl, &dl, &p) == Success && p) {
+		atom = *(Atom *)p;
+		if (da == xatom[XembedInfo] && dl == 2)
+			atom = ((Atom *)p)[1];
+		XFree(p);
+	}
+	return atom;
+}
+
+unsigned int
+getsystraywidth()
+{
+	unsigned int w = 0;
+	Client *i;
+	if(showsystray)
+		for(i = systray->icons; i; w += i->w + systrayspacing, i = i->next) ;
+	return w ? w + systrayspacing : 1;
+}
+
+static uint32_t prealpha(uint32_t p) {
+	uint8_t a = p >> 24u;
+	uint32_t rb = (a * (p & 0xFF00FFu)) >> 8u;
+	uint32_t g = (a * (p & 0x00FF00u)) >> 8u;
+	return (rb & 0xFF00FFu) | (g & 0x00FF00u) | (a << 24u);
+}
+
+Picture
+geticonprop(Window win, unsigned int *picw, unsigned int *pich)
+{
+	int format;
+	unsigned long n, extra, *p = NULL;
+	Atom real;
+
+	if (XGetWindowProperty(dpy, win, netatom[NetWMIcon], 0L, LONG_MAX, False, AnyPropertyType, 
+						   &real, &format, &n, &extra, (unsigned char **)&p) != Success)
+		return None; 
+	if (n == 0 || format != 32) { XFree(p); return None; }
+
+	unsigned long *bstp = NULL;
+	uint32_t w, h, sz;
+	{
+		unsigned long *i; const unsigned long *end = p + n;
+		uint32_t bstd = UINT32_MAX, d, m;
+		for (i = p; i < end - 1; i += sz) {
+			if ((w = *i++) >= 16384 || (h = *i++) >= 16384) { XFree(p); return None; }
+			if ((sz = w * h) > end - i) break;
+			if ((m = w > h ? w : h) >= ICONSIZE && (d = m - ICONSIZE) < bstd) { bstd = d; bstp = i; }
+		}
+		if (!bstp) {
+			for (i = p; i < end - 1; i += sz) {
+				if ((w = *i++) >= 16384 || (h = *i++) >= 16384) { XFree(p); return None; }
+				if ((sz = w * h) > end - i) break;
+				if ((d = ICONSIZE - (w > h ? w : h)) < bstd) { bstd = d; bstp = i; }
+			}
+		}
+		if (!bstp) { XFree(p); return None; }
+	}
+
+	if ((w = *(bstp - 2)) == 0 || (h = *(bstp - 1)) == 0) { XFree(p); return None; }
+
+	uint32_t icw, ich;
+	if (w <= h) {
+		ich = ICONSIZE; icw = w * ICONSIZE / h;
+		if (icw == 0) icw = 1;
+	}
+	else {
+		icw = ICONSIZE; ich = h * ICONSIZE / w;
+		if (ich == 0) ich = 1;
+	}
+	*picw = icw; *pich = ich;
+
+	uint32_t i, *bstp32 = (uint32_t *)bstp;
+	for (sz = w * h, i = 0; i < sz; ++i) bstp32[i] = prealpha(bstp[i]);
+
+	Picture ret = drw_picture_create_resized(drw, (char *)bstp, w, h, icw, ich);
+	XFree(p);
+
+	return ret;
+}
+
+int
+getrootptr(int *x, int *y)
+{
+	int di;
+	unsigned int dui;
+	Window dummy;
+
+	return XQueryPointer(dpy, root, &dummy, &dummy, x, y, &di, &di, &dui);
+}
+
+long
+getstate(Window w)
+{
+	int format;
+	long result = -1;
+	unsigned char *p = NULL;
+	unsigned long n, extra;
+	Atom real;
+
+	if (XGetWindowProperty(dpy, w, wmatom[WMState], 0L, 2L, False, wmatom[WMState],
+		&real, &format, &n, &extra, (unsigned char **)&p) != Success)
+		return -1;
+	if (n != 0)
+		result = *p;
+	XFree(p);
+	return result;
+}
+
+int
+gettextprop(Window w, Atom atom, char *text, unsigned int size)
+{
+	char **list = NULL;
+	int n;
+	XTextProperty name;
+
+	if (!text || size == 0)
+		return 0;
+	text[0] = '\0';
+	if (!XGetTextProperty(dpy, w, &name, atom) || !name.nitems)
+		return 0;
+	if (name.encoding == XA_STRING) {
+		strncpy(text, (char *)name.value, size - 1);
+	} else if (XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success && n > 0 && *list) {
+		strncpy(text, *list, size - 1);
+		XFreeStringList(list);
+	}
+	text[size - 1] = '\0';
+	XFree(name.value);
+	return 1;
+}
+
+void
+grabbuttons(Client *c, int focused)
+{
+	updatenumlockmask();
+	{
+		unsigned int i, j;
+		unsigned int modifiers[] = { 0, LockMask, numlockmask, numlockmask|LockMask };
+		XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
+		if (!focused)
+			XGrabButton(dpy, AnyButton, AnyModifier, c->win, False,
+				BUTTONMASK, GrabModeSync, GrabModeSync, None, None);
+		for (i = 0; i < LENGTH(buttons); i++)
+			if (buttons[i].click == ClkClientWin)
+				for (j = 0; j < LENGTH(modifiers); j++)
+					XGrabButton(dpy, buttons[i].button,
+						buttons[i].mask | modifiers[j],
+						c->win, False, BUTTONMASK,
+						GrabModeAsync, GrabModeSync, None, None);
+	}
+}
+
+void
+grabkeys(void)
+{
+	updatenumlockmask();
+	{
+		unsigned int i, j, k;
+		unsigned int modifiers[] = { 0, LockMask, numlockmask, numlockmask|LockMask };
+		int start, end, skip;
+		KeySym *syms;
+
+		XUngrabKey(dpy, AnyKey, AnyModifier, root);
+		XDisplayKeycodes(dpy, &start, &end);
+		syms = XGetKeyboardMapping(dpy, start, end - start + 1, &skip);
+		if (!syms)
+			return;
+		for (k = start; k <= end; k++)
+			for (i = 0; i < LENGTH(keys); i++)
+				/* skip modifier codes, we do that ourselves */
+				if (keys[i].keysym == syms[(k - start) * skip])
+					for (j = 0; j < LENGTH(modifiers); j++)
+						XGrabKey(dpy, k,
+							 keys[i].mod | modifiers[j],
+							 root, True,
+							 GrabModeAsync, GrabModeAsync);
+		XFree(syms);
+	}
+}
+
+void
+incnmaster(const Arg *arg)
+{
+	selmon->nmaster = MAX(selmon->nmaster + arg->i, 0);
+	arrange(selmon);
+}
+
+#ifdef XINERAMA
+static int
+isuniquegeom(XineramaScreenInfo *unique, size_t n, XineramaScreenInfo *info)
+{
+	while (n--)
+		if (unique[n].x_org == info->x_org && unique[n].y_org == info->y_org
+		&& unique[n].width == info->width && unique[n].height == info->height)
+			return 0;
+	return 1;
+}
+#endif /* XINERAMA */
+
+void
+keypress(XEvent *e)
+{
+	unsigned int i;
+	KeySym keysym;
+	XKeyEvent *ev;
+
+	ev = &e->xkey;
+	keysym = XKeycodeToKeysym(dpy, (KeyCode)ev->keycode, 0);
+	for (i = 0; i < LENGTH(keys); i++)
+		if (keysym == keys[i].keysym
+		&& CLEANMASK(keys[i].mod) == CLEANMASK(ev->state)
+		&& keys[i].func)
+			keys[i].func(&(keys[i].arg));
+}
+
+void
+killclient(const Arg *arg)
+{
+	if (!selmon->sel)
+		return;
+
+	if (!sendevent(selmon->sel->win, wmatom[WMDelete], NoEventMask, wmatom[WMDelete], CurrentTime, 0 , 0, 0)) {
+		XGrabServer(dpy);
+		XSetErrorHandler(xerrordummy);
+		XSetCloseDownMode(dpy, DestroyAll);
+		XKillClient(dpy, selmon->sel->win);
+		XSync(dpy, False);
+		XSetErrorHandler(xerror);
+		XUngrabServer(dpy);
+	}
+}
+
+void
+loadxrdb()
+{
+  Display *display;
+  char * resm;
+  XrmDatabase xrdb;
+  char *type;
+  XrmValue value;
+
+  display = XOpenDisplay(NULL);
+
+  if (display != NULL) {
+    resm = XResourceManagerString(display);
+
+    if (resm != NULL) {
+      xrdb = XrmGetStringDatabase(resm);
+
+      if (xrdb != NULL) {
+        XRDB_LOAD_COLOR("birdwm.normbordercolor", normbordercolor);
+        XRDB_LOAD_COLOR("birdwm.normbgcolor", normbgcolor);
+        XRDB_LOAD_COLOR("birdwm.normfgcolor", normfgcolor);
+        XRDB_LOAD_COLOR("birdwm.selbordercolor", selbordercolor);
+        XRDB_LOAD_COLOR("birdwm.selbgcolor", selbgcolor);
+        XRDB_LOAD_COLOR("birdwm.selfgcolor", selfgcolor);
+      }
+    }
+  }
+
+  XCloseDisplay(display);
+}
+
+void
+manage(Window w, XWindowAttributes *wa)
+{
+	Client *c, *t = NULL;
+	Window trans = None;
+	XWindowChanges wc;
+
+	c = ecalloc(1, sizeof(Client));
+	c->win = w;
+	/* geometry */
+	c->x = c->oldx = wa->x;
+	c->y = c->oldy = wa->y;
+	c->w = c->oldw = wa->width;
+	c->h = c->oldh = wa->height;
+	c->oldbw = wa->border_width;
+
+	updateicon(c);
+	updatetitle(c);
+	if (XGetTransientForHint(dpy, w, &trans) && (t = wintoclient(trans))) {
+		c->mon = t->mon;
+		c->tags = t->tags;
+	} else {
+		c->mon = selmon;
+		applyrules(c);
+	}
+
+	if (c->x + WIDTH(c) > c->mon->wx + c->mon->ww)
+		c->x = c->mon->wx + c->mon->ww - WIDTH(c);
+	if (c->y + HEIGHT(c) > c->mon->wy + c->mon->wh)
+		c->y = c->mon->wy + c->mon->wh - HEIGHT(c);
+	c->x = MAX(c->x, c->mon->wx);
+	c->y = MAX(c->y, c->mon->wy);
+	c->bw = borderpx;
+
+	selmon->tagset[selmon->seltags] &= ~scratchtag;
+	if (!strcmp(c->name, scratchpadname)) {
+		c->mon->tagset[c->mon->seltags] |= c->tags = scratchtag;
+		c->isfloating = True;
+		c->x = c->mon->wx + (c->mon->ww / 2 - WIDTH(c) / 2);
+		c->y = c->mon->wy + (c->mon->wh / 2 - HEIGHT(c) / 2);
+	}
+
+	wc.border_width = c->bw;
+	XConfigureWindow(dpy, w, CWBorderWidth, &wc);
+	XSetWindowBorder(dpy, w, scheme[SchemeNorm][ColBorder].pixel);
+	configure(c); /* propagates border_width, if size doesn't change */
+	updatewindowtype(c);
+	updatesizehints(c);
+	updatewmhints(c);
+	XSelectInput(dpy, w, EnterWindowMask|FocusChangeMask|PropertyChangeMask|StructureNotifyMask);
+	grabbuttons(c, 0);
+	if (!c->isfloating)
+		c->isfloating = c->oldstate = trans != None || c->isfixed;
+	if (c->isfloating)
+		XRaiseWindow(dpy, c->win);
+	attach(c);
+	attachstack(c);
+	XChangeProperty(dpy, root, netatom[NetClientList], XA_WINDOW, 32, PropModeAppend,
+		(unsigned char *) &(c->win), 1);
+	XMoveResizeWindow(dpy, c->win, c->x + 2 * sw, c->y, c->w, c->h); /* some windows require this */
+	setclientstate(c, NormalState);
+	if (c->mon == selmon)
+		unfocus(selmon->sel, 0);
+	c->mon->sel = c;
+	arrange(c->mon);
+	XMapWindow(dpy, c->win);
+	focus(NULL);
+}
+
+void
+mappingnotify(XEvent *e)
+{
+	XMappingEvent *ev = &e->xmapping;
+
+	XRefreshKeyboardMapping(ev);
+	if (ev->request == MappingKeyboard)
+		grabkeys();
+}
+
+void
+maprequest(XEvent *e)
+{
+	static XWindowAttributes wa;
+	XMapRequestEvent *ev = &e->xmaprequest;
+
+	Client *i;
+	if ((i = wintosystrayicon(ev->window))) {
+		sendevent(i->win, netatom[Xembed], StructureNotifyMask, CurrentTime, XEMBED_WINDOW_ACTIVATE, 0, systray->win, XEMBED_EMBEDDED_VERSION);
+		resizebarwin(selmon);
+		updatesystray();
+	}
+
+	if (!XGetWindowAttributes(dpy, ev->window, &wa) || wa.override_redirect)
+		return;
+	if (!wintoclient(ev->window))
+		manage(ev->window, &wa);
+}
+
+void
+monocle(Monitor *m)
+{
+	unsigned int n = 0;
+	Client *c;
+
+	for (c = m->clients; c; c = c->next)
+		if (ISVISIBLE(c))
+			n++;
+	if (n > 0) /* override layout symbol */
+		snprintf(m->ltsymbol, sizeof m->ltsymbol, "[%d]", n);
+	for (c = nexttiled(m->clients); c; c = nexttiled(c->next))
+		resize(c, m->wx, m->wy, m->ww - 2 * c->bw, m->wh - 2 * c->bw, 0);
+}
+
+void
+motionnotify(XEvent *e)
+{
+	static Monitor *mon = NULL;
+	Monitor *m;
+	XMotionEvent *ev = &e->xmotion;
+
+	if (ev->window != root)
+		return;
+	if ((m = recttomon(ev->x_root, ev->y_root, 1, 1)) != mon && mon) {
+		unfocus(selmon->sel, 1);
+		selmon = m;
+		focus(NULL);
+	}
+	mon = m;
+}
+
+void
+movemouse(const Arg *arg)
+{
+	int x, y, ocx, ocy, nx, ny;
+	Client *c;
+	Monitor *m;
+	XEvent ev;
+	Time lasttime = 0;
+
+	if (!(c = selmon->sel))
+		return;
+	if (c->isfullscreen) /* no support moving fullscreen windows by mouse */
+		return;
+	restack(selmon);
+	ocx = c->x;
+	ocy = c->y;
+	if (XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
+		None, cursor[CurMove]->cursor, CurrentTime) != GrabSuccess)
+		return;
+	if (!getrootptr(&x, &y))
+		return;
+	do {
+		XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask, &ev);
+		switch(ev.type) {
+		case ConfigureRequest:
+		case Expose:
+		case MapRequest:
+			handler[ev.type](&ev);
+			break;
+		case MotionNotify:
+			if ((ev.xmotion.time - lasttime) <= (1000 / 60))
+				continue;
+			lasttime = ev.xmotion.time;
+
+			nx = ocx + (ev.xmotion.x - x);
+			ny = ocy + (ev.xmotion.y - y);
+			if (abs(selmon->wx - nx) < snap)
+				nx = selmon->wx;
+			else if (abs((selmon->wx + selmon->ww) - (nx + WIDTH(c))) < snap)
+				nx = selmon->wx + selmon->ww - WIDTH(c);
+			if (abs(selmon->wy - ny) < snap)
+				ny = selmon->wy;
+			else if (abs((selmon->wy + selmon->wh) - (ny + HEIGHT(c))) < snap)
+				ny = selmon->wy + selmon->wh - HEIGHT(c);
+			if (!c->isfloating && selmon->lt[selmon->sellt]->arrange
+			&& (abs(nx - c->x) > snap || abs(ny - c->y) > snap))
+				togglefloating(NULL);
+			if (!selmon->lt[selmon->sellt]->arrange || c->isfloating)
+				resize(c, nx, ny, c->w, c->h, 1);
+			break;
+		}
+	} while (ev.type != ButtonRelease);
+	XUngrabPointer(dpy, CurrentTime);
+	if ((m = recttomon(c->x, c->y, c->w, c->h)) != selmon) {
+		sendmon(c, m);
+		selmon = m;
+		focus(NULL);
+	}
+}
+
+Client *
+nexttiled(Client *c)
+{
+	for (; c && (c->isfloating || !ISVISIBLE(c)); c = c->next);
+	return c;
+}
+
+void
+pop(Client *c)
+{
+	detach(c);
+	attach(c);
+	focus(c);
+	arrange(c->mon);
+}
+
+void
+propertynotify(XEvent *e)
+{
+	Client *c;
+	Window trans;
+	XPropertyEvent *ev = &e->xproperty;
+
+	if ((c = wintosystrayicon(ev->window))) {
+		if (ev->atom == XA_WM_NORMAL_HINTS) {
+			updatesizehints(c);
+			updatesystrayicongeom(c, c->w, c->h);
+		}
+		else
+			updatesystrayiconstate(c, ev);
+		resizebarwin(selmon);
+		updatesystray();
+	}
+
+	if ((ev->window == root) && (ev->atom == XA_WM_NAME))
+		updatestatus();
+	else if (ev->state == PropertyDelete)
+		return; /* ignore */
+	else if ((c = wintoclient(ev->window))) {
+		switch(ev->atom) {
+		default: break;
+		case XA_WM_TRANSIENT_FOR:
+			if (!c->isfloating && (XGetTransientForHint(dpy, c->win, &trans)) &&
+				(c->isfloating = (wintoclient(trans)) != NULL))
+				arrange(c->mon);
+			break;
+		case XA_WM_NORMAL_HINTS:
+			c->hintsvalid = 0;
+			break;
+		case XA_WM_HINTS:
+			updatewmhints(c);
+			drawbars();
+			break;
+		}
+		if (ev->atom == XA_WM_NAME || ev->atom == netatom[NetWMName]) {
+			updatetitle(c);
+			if (c == c->mon->sel)
+				drawbar(c->mon);
+		}
+		else if (ev->atom == netatom[NetWMIcon]) {
+			updateicon(c);
+			if (c == c->mon->sel)
+				drawbar(c->mon);
+		}
+		if (ev->atom == netatom[NetWMWindowType])
+			updatewindowtype(c);
+	}
+}
+
+void
+quit(const Arg *arg)
+{
+	size_t i;
+
+	/* kill child processes */
+	for (i = 0; i < autostart_len; i++) {
+		if (0 < autostart_pids[i]) {
+			kill(autostart_pids[i], SIGTERM);
+			waitpid(autostart_pids[i], NULL, 0);
+		}
+	}
+
+	running = 0;
+}
+
+Monitor *
+recttomon(int x, int y, int w, int h)
+{
+	Monitor *m, *r = selmon;
+	int a, area = 0;
+
+	for (m = mons; m; m = m->next)
+		if ((a = INTERSECT(x, y, w, h, m)) > area) {
+			area = a;
+			r = m;
+		}
+	return r;
+}
+
+void
+removesystrayicon(Client *i)
+{
+	Client **ii;
+
+	if (!showsystray || !i)
+		return;
+	for (ii = &systray->icons; *ii && *ii != i; ii = &(*ii)->next);
+	if (ii)
+		*ii = i->next;
+	free(i);
+}
+
+void
+resize(Client *c, int x, int y, int w, int h, int interact)
+{
+	if (applysizehints(c, &x, &y, &w, &h, interact))
+		resizeclient(c, x, y, w, h);
+}
+
+void
+resizebarwin(Monitor *m) {
+	unsigned int w = m->ww;
+	if (showsystray && m == systraytomon(m) && !systrayonleft)
+		w -= getsystraywidth();
+	XMoveResizeWindow(dpy, m->barwin, m->wx + sp, m->by + vp, w - 2 * sp, bh);
+}
+
+void
+resizeclient(Client *c, int x, int y, int w, int h)
+{
+	XWindowChanges wc;
+	unsigned int n;
+	unsigned int gapoffset;
+	unsigned int gapincr;
+	Client *nbc;
+
+	wc.border_width = c->bw;
+
+	/* Get number of clients for the client's monitor */
+	for (n = 0, nbc = nexttiled(c->mon->clients); nbc; nbc = nexttiled(nbc->next), n++);
+
+	/* Do nothing if layout is floating */
+	if (c->isfloating || c->mon->lt[c->mon->sellt]->arrange == NULL) {
+		gapincr = gapoffset = 0;
+	} else {
+		/* Remove border and gap if layout is monocle or only one client */
+		if (c->mon->lt[c->mon->sellt]->arrange == monocle || n == 1) {
+			gapoffset = 0;
+			gapincr = -2 * borderpx;
+			wc.border_width = 0;
+		} else {
+			gapoffset = gappx;
+			gapincr = 2 * gappx;
+		}
+	}
+
+	c->oldx = c->x; c->x = wc.x = x + gapoffset;
+	c->oldy = c->y; c->y = wc.y = y + gapoffset;
+	c->oldw = c->w; c->w = wc.width = w - gapincr;
+	c->oldh = c->h; c->h = wc.height = h - gapincr;
+
+	XConfigureWindow(dpy, c->win, CWX|CWY|CWWidth|CWHeight|CWBorderWidth, &wc);
+	configure(c);
+	XSync(dpy, False);
+}
+
+void
+resizerequest(XEvent *e)
+{
+	XResizeRequestEvent *ev = &e->xresizerequest;
+	Client *i;
+
+	if ((i = wintosystrayicon(ev->window))) {
+		updatesystrayicongeom(i, ev->width, ev->height);
+		resizebarwin(selmon);
+		updatesystray();
+	}
+}
+
+void
+resizemouse(const Arg *arg)
+{
+	int ocx, ocy, nw, nh;
+	Client *c;
+	Monitor *m;
+	XEvent ev;
+	Time lasttime = 0;
+
+	if (!(c = selmon->sel))
+		return;
+	if (c->isfullscreen) /* no support resizing fullscreen windows by mouse */
+		return;
+	restack(selmon);
+	ocx = c->x;
+	ocy = c->y;
+	if (XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
+		None, cursor[CurResize]->cursor, CurrentTime) != GrabSuccess)
+		return;
+	XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1, c->h + c->bw - 1);
+	do {
+		XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask, &ev);
+		switch(ev.type) {
+		case ConfigureRequest:
+		case Expose:
+		case MapRequest:
+			handler[ev.type](&ev);
+			break;
+		case MotionNotify:
+			if ((ev.xmotion.time - lasttime) <= (1000 / 60))
+				continue;
+			lasttime = ev.xmotion.time;
+
+			nw = MAX(ev.xmotion.x - ocx - 2 * c->bw + 1, 1);
+			nh = MAX(ev.xmotion.y - ocy - 2 * c->bw + 1, 1);
+			if (c->mon->wx + nw >= selmon->wx && c->mon->wx + nw <= selmon->wx + selmon->ww
+			&& c->mon->wy + nh >= selmon->wy && c->mon->wy + nh <= selmon->wy + selmon->wh)
+			{
+				if (!c->isfloating && selmon->lt[selmon->sellt]->arrange
+				&& (abs(nw - c->w) > snap || abs(nh - c->h) > snap))
+					togglefloating(NULL);
+			}
+			if (!selmon->lt[selmon->sellt]->arrange || c->isfloating)
+				resize(c, c->x, c->y, nw, nh, 1);
+			break;
+		}
+	} while (ev.type != ButtonRelease);
+	XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1, c->h + c->bw - 1);
+	XUngrabPointer(dpy, CurrentTime);
+	while (XCheckMaskEvent(dpy, EnterWindowMask, &ev));
+	if ((m = recttomon(c->x, c->y, c->w, c->h)) != selmon) {
+		sendmon(c, m);
+		selmon = m;
+		focus(NULL);
+	}
+}
+
+void
+restack(Monitor *m)
+{
+	Client *c;
+	XEvent ev;
+	XWindowChanges wc;
+
+	drawbar(m);
+	if (!m->sel)
+		return;
+	if (m->sel->isfloating || !m->lt[m->sellt]->arrange)
+		XRaiseWindow(dpy, m->sel->win);
+	if (m->lt[m->sellt]->arrange) {
+		wc.stack_mode = Below;
+		wc.sibling = m->barwin;
+		for (c = m->stack; c; c = c->snext)
+			if (!c->isfloating && ISVISIBLE(c)) {
+				XConfigureWindow(dpy, c->win, CWSibling|CWStackMode, &wc);
+				wc.sibling = c->win;
+			}
+	}
+	XSync(dpy, False);
+	while (XCheckMaskEvent(dpy, EnterWindowMask, &ev));
+}
+
+void
+run(void)
+{
+	XEvent ev;
+	/* main event loop */
+	XSync(dpy, False);
+	while (running && !XNextEvent(dpy, &ev))
+		if (handler[ev.type])
+			handler[ev.type](&ev); /* call handler */
+}
+
+void
+scan(void)
+{
+	unsigned int i, num;
+	Window d1, d2, *wins = NULL;
+	XWindowAttributes wa;
+
+	if (XQueryTree(dpy, root, &d1, &d2, &wins, &num)) {
+		for (i = 0; i < num; i++) {
+			if (!XGetWindowAttributes(dpy, wins[i], &wa)
+			|| wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1))
+				continue;
+			if (wa.map_state == IsViewable || getstate(wins[i]) == IconicState)
+				manage(wins[i], &wa);
+		}
+		for (i = 0; i < num; i++) { /* now the transients */
+			if (!XGetWindowAttributes(dpy, wins[i], &wa))
+				continue;
+			if (XGetTransientForHint(dpy, wins[i], &d1)
+			&& (wa.map_state == IsViewable || getstate(wins[i]) == IconicState))
+				manage(wins[i], &wa);
+		}
+		if (wins)
+			XFree(wins);
+	}
+}
+
+void
+sendmon(Client *c, Monitor *m)
+{
+	if (c->mon == m)
+		return;
+	unfocus(c, 1);
+	detach(c);
+	detachstack(c);
+	c->mon = m;
+	c->tags = m->tagset[m->seltags]; /* assign tags of target monitor */
+	attach(c);
+	attachstack(c);
+	focus(NULL);
+	arrange(NULL);
+}
+
+void
+setclientstate(Client *c, long state)
+{
+	long data[] = { state, None };
+
+	XChangeProperty(dpy, c->win, wmatom[WMState], wmatom[WMState], 32,
+		PropModeReplace, (unsigned char *)data, 2);
+}
+
+int
+sendevent(Window w, Atom proto, int mask, long d0, long d1, long d2, long d3, long d4)
+{
+	int n;
+	Atom *protocols, mt;
+	int exists = 0;
+	XEvent ev;
+
+	if (proto == wmatom[WMTakeFocus] || proto == wmatom[WMDelete]) {
+		mt = wmatom[WMProtocols];
+		if (XGetWMProtocols(dpy, w, &protocols, &n)) {
+			while (!exists && n--)
+				exists = protocols[n] == proto;
+			XFree(protocols);
+		}
+	}
+	else {
+		exists = True;
+		mt = proto;
+	}
+
+	if (exists) {
+		ev.type = ClientMessage;
+		ev.xclient.window = w;
+		ev.xclient.message_type = mt;
+		ev.xclient.format = 32;
+		ev.xclient.data.l[0] = d0;
+		ev.xclient.data.l[1] = d1;
+		ev.xclient.data.l[2] = d2;
+		ev.xclient.data.l[3] = d3;
+		ev.xclient.data.l[4] = d4;
+		XSendEvent(dpy, w, False, mask, &ev);
+	}
+	return exists;
+}
+
+void
+setfocus(Client *c)
+{
+	if (!c->neverfocus) {
+		XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime);
+		XChangeProperty(dpy, root, netatom[NetActiveWindow],
+			XA_WINDOW, 32, PropModeReplace,
+			(unsigned char *) &(c->win), 1);
+	}
+	sendevent(c->win, wmatom[WMTakeFocus], NoEventMask, wmatom[WMTakeFocus], CurrentTime, 0, 0, 0);
+}
+
+void
+setfullscreen(Client *c, int fullscreen)
+{
+	if (fullscreen && !c->isfullscreen) {
+		XChangeProperty(dpy, c->win, netatom[NetWMState], XA_ATOM, 32,
+			PropModeReplace, (unsigned char*)&netatom[NetWMFullscreen], 1);
+		c->isfullscreen = 1;
+		c->oldstate = c->isfloating;
+		c->oldbw = c->bw;
+		c->bw = 0;
+		c->isfloating = 1;
+		resizeclient(c, c->mon->mx, c->mon->my, c->mon->mw, c->mon->mh);
+		XRaiseWindow(dpy, c->win);
+	} else if (!fullscreen && c->isfullscreen){
+		XChangeProperty(dpy, c->win, netatom[NetWMState], XA_ATOM, 32,
+			PropModeReplace, (unsigned char*)0, 0);
+		c->isfullscreen = 0;
+		c->isfloating = c->oldstate;
+		c->bw = c->oldbw;
+		c->x = c->oldx;
+		c->y = c->oldy;
+		c->w = c->oldw;
+		c->h = c->oldh;
+		resizeclient(c, c->x, c->y, c->w, c->h);
+		arrange(c->mon);
+	}
+}
+
+void
+setlayout(const Arg *arg)
+{
+	if (!arg || !arg->v || arg->v != selmon->lt[selmon->sellt])
+		selmon->sellt ^= 1;
+	if (arg && arg->v)
+		selmon->lt[selmon->sellt] = (Layout *)arg->v;
+	strncpy(selmon->ltsymbol, selmon->lt[selmon->sellt]->symbol, sizeof selmon->ltsymbol);
+	if (selmon->sel)
+		arrange(selmon);
+	else
+		drawbar(selmon);
+}
+
+/* arg > 1.0 will set mfact absolutely */
+void
+setmfact(const Arg *arg)
+{
+	float f;
+
+	if (!arg || !selmon->lt[selmon->sellt]->arrange)
+		return;
+	f = arg->f < 1.0 ? arg->f + selmon->mfact : arg->f - 1.0;
+	if (f < 0.05 || f > 0.95)
+		return;
+	selmon->mfact = f;
+	arrange(selmon);
+}
+
+void
+setup(void)
+{
+	int i;
+	XSetWindowAttributes wa;
+	Atom utf8string;
+	struct sigaction sa;
+	pid_t pid;
+
+	/* do not transform children into zombies when they terminate */
+	sigemptyset(&sa.sa_mask);
+	sa.sa_flags = SA_NOCLDSTOP | SA_NOCLDWAIT | SA_RESTART;
+	sa.sa_handler = SIG_IGN;
+	sigaction(SIGCHLD, &sa, NULL);
+
+	/* clean up any zombies (inherited from .xinitrc etc) immediately */
+	while (0 < (pid = waitpid(-1, NULL, WNOHANG))) {
+		pid_t *p, *lim;
+
+		if (!(p = autostart_pids))
+			continue;
+		lim = &p[autostart_len];
+
+		for (; p < lim; p++) {
+			if (*p == pid) {
+				*p = -1;
+				break;
+			}
+		}
+
+	}
+
+	/* init screen */
+	screen = DefaultScreen(dpy);
+	sw = DisplayWidth(dpy, screen);
+	sh = DisplayHeight(dpy, screen);
+	root = RootWindow(dpy, screen);
+	drw = drw_create(dpy, screen, root, sw, sh);
+	if (!drw_fontset_create(drw, fonts, LENGTH(fonts)))
+		die("no fonts could be loaded.");
+	lrpad = drw->fonts->h;
+	bh = drw->fonts->h + 2;
+	updategeom();
+	sp = sidepad;
+	vp = (topbar == 1) ? vertpad : - vertpad;
+
+	/* init atoms */
+	utf8string = XInternAtom(dpy, "UTF8_STRING", False);
+	wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);
+	wmatom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
+	wmatom[WMState] = XInternAtom(dpy, "WM_STATE", False);
+	wmatom[WMTakeFocus] = XInternAtom(dpy, "WM_TAKE_FOCUS", False);
+	netatom[NetActiveWindow] = XInternAtom(dpy, "_NET_ACTIVE_WINDOW", False);
+	netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False);
+	netatom[NetSystemTray] = XInternAtom(dpy, "_NET_SYSTEM_TRAY_S0", False);
+	netatom[NetSystemTrayOP] = XInternAtom(dpy, "_NET_SYSTEM_TRAY_OPCODE", False);
+	netatom[NetSystemTrayOrientation] = XInternAtom(dpy, "_NET_SYSTEM_TRAY_ORIENTATION", False);
+	netatom[NetSystemTrayOrientationHorz] = XInternAtom(dpy, "_NET_SYSTEM_TRAY_ORIENTATION_HORZ", False);
+	netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False);
+	netatom[NetWMIcon] = XInternAtom(dpy, "_NET_WM_ICON", False);
+	netatom[NetWMState] = XInternAtom(dpy, "_NET_WM_STATE", False);
+	netatom[NetWMCheck] = XInternAtom(dpy, "_NET_SUPPORTING_WM_CHECK", False);
+	netatom[NetWMFullscreen] = XInternAtom(dpy, "_NET_WM_STATE_FULLSCREEN", False);
+	netatom[NetWMWindowType] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE", False);
+	netatom[NetWMWindowTypeDialog] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE_DIALOG", False);
+	netatom[NetClientList] = XInternAtom(dpy, "_NET_CLIENT_LIST", False);
+	xatom[Manager] = XInternAtom(dpy, "MANAGER", False);
+	xatom[Xembed] = XInternAtom(dpy, "_XEMBED", False);
+	xatom[XembedInfo] = XInternAtom(dpy, "_XEMBED_INFO", False);
+	/* init cursors */
+	cursor[CurNormal] = drw_cur_create(drw, XC_left_ptr);
+	cursor[CurResize] = drw_cur_create(drw, XC_sizing);
+	cursor[CurMove] = drw_cur_create(drw, XC_fleur);
+	/* init appearance */
+	scheme = ecalloc(LENGTH(colors), sizeof(Clr *));
+	for (i = 0; i < LENGTH(colors); i++)
+		scheme[i] = drw_scm_create(drw, colors[i], 3);
+	/* init system tray */
+	updatesystray();
+
+	/* init bars */
+	updatebars();
+	updatestatus();
+	updatebarpos(selmon);
+	/* supporting window for NetWMCheck */
+	wmcheckwin = XCreateSimpleWindow(dpy, root, 0, 0, 1, 1, 0, 0, 0);
+	XChangeProperty(dpy, wmcheckwin, netatom[NetWMCheck], XA_WINDOW, 32,
+		PropModeReplace, (unsigned char *) &wmcheckwin, 1);
+	XChangeProperty(dpy, wmcheckwin, netatom[NetWMName], utf8string, 8,
+		PropModeReplace, (unsigned char *) "birdwm", 3);
+	XChangeProperty(dpy, root, netatom[NetWMCheck], XA_WINDOW, 32,
+		PropModeReplace, (unsigned char *) &wmcheckwin, 1);
+	/* EWMH support per view */
+	XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32,
+		PropModeReplace, (unsigned char *) netatom, NetLast);
+	XDeleteProperty(dpy, root, netatom[NetClientList]);
+	/* select events */
+	wa.cursor = cursor[CurNormal]->cursor;
+	wa.event_mask = SubstructureRedirectMask|SubstructureNotifyMask
+		|ButtonPressMask|PointerMotionMask|EnterWindowMask
+		|LeaveWindowMask|StructureNotifyMask|PropertyChangeMask;
+	XChangeWindowAttributes(dpy, root, CWEventMask|CWCursor, &wa);
+	XSelectInput(dpy, root, wa.event_mask);
+	grabkeys();
+	focus(NULL);
+}
+
+void
+seturgent(Client *c, int urg)
+{
+	XWMHints *wmh;
+
+	c->isurgent = urg;
+	if (!(wmh = XGetWMHints(dpy, c->win)))
+		return;
+	wmh->flags = urg ? (wmh->flags | XUrgencyHint) : (wmh->flags & ~XUrgencyHint);
+	XSetWMHints(dpy, c->win, wmh);
+	XFree(wmh);
+}
+
+void
+showhide(Client *c)
+{
+	if (!c)
+		return;
+	if (ISVISIBLE(c)) {
+		/* show clients top down */
+		XMoveWindow(dpy, c->win, c->x, c->y);
+		if ((!c->mon->lt[c->mon->sellt]->arrange || c->isfloating) && !c->isfullscreen)
+			resize(c, c->x, c->y, c->w, c->h, 0);
+		showhide(c->snext);
+	} else {
+		/* hide clients bottom up */
+		showhide(c->snext);
+		XMoveWindow(dpy, c->win, WIDTH(c) * -2, c->y);
+	}
+}
+
+void
+spawn(const Arg *arg)
+{
+	struct sigaction sa;
+
+	if (arg->v == dmenucmd)
+		dmenumon[0] = '0' + selmon->num;
+	selmon->tagset[selmon->seltags] &= ~scratchtag;
+	if (fork() == 0) {
+		if (dpy)
+			close(ConnectionNumber(dpy));
+		setsid();
+
+		sigemptyset(&sa.sa_mask);
+		sa.sa_flags = 0;
+		sa.sa_handler = SIG_DFL;
+		sigaction(SIGCHLD, &sa, NULL);
+
+		execvp(((char **)arg->v)[0], (char **)arg->v);
+		die("birdwm: execvp '%s' failed:", ((char **)arg->v)[0]);
+	}
+}
+
+void
+tag(const Arg *arg)
+{
+	if (selmon->sel && arg->ui & TAGMASK) {
+		selmon->sel->tags = arg->ui & TAGMASK;
+		focus(NULL);
+		arrange(selmon);
+	}
+}
+
+void
+tagmon(const Arg *arg)
+{
+	if (!selmon->sel || !mons->next)
+		return;
+	sendmon(selmon->sel, dirtomon(arg->i));
+}
+
+void
+tile(Monitor *m)
+{
+	unsigned int i, n, h, mw, my, ty;
+	Client *c;
+
+	for (n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++);
+	if (n == 0)
+		return;
+
+	if (n > m->nmaster)
+		mw = m->nmaster ? m->ww * m->mfact : 0;
+	else
+		mw = m->ww;
+	for (i = my = ty = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++)
+		if (i < m->nmaster) {
+			h = (m->wh - my) / (MIN(n, m->nmaster) - i);
+			resize(c, m->wx, m->wy + my, mw - (2*c->bw) + (n > 1 ? gappx : 0), h - (2*c->bw), 0);
+			if (my + HEIGHT(c) < m->wh)
+				my += HEIGHT(c);
+		} else {
+			h = (m->wh - ty) / (n - i);
+			resize(c, m->wx + mw, m->wy + ty, m->ww - mw - (2*c->bw), h - (2*c->bw), 0);
+			if (ty + HEIGHT(c) < m->wh)
+				ty += HEIGHT(c);
+		}
+}
+
+void
+togglebar(const Arg *arg)
+{
+	selmon->showbar = !selmon->showbar;
+	updatebarpos(selmon);
+	//XMoveResizeWindow(dpy, selmon->barwin, selmon->wx + sp, selmon->by + vp, selmon->ww - 2 * sp, bh);
+	resizebarwin(selmon);
+	if (showsystray) {
+		XWindowChanges wc;
+		if (!selmon->showbar)
+			wc.y = -bh;
+		else if (selmon->showbar) {
+			wc.y = 0;
+			if (!selmon->topbar)
+				wc.y = selmon->mh - bh;
+		}
+		XConfigureWindow(dpy, systray->win, CWY, &wc);
+	}
+	arrange(selmon);
+}
+
+void
+togglefloating(const Arg *arg)
+{
+	if (!selmon->sel)
+		return;
+	if (selmon->sel->isfullscreen) /* no support for fullscreen windows */
+		return;
+	selmon->sel->isfloating = !selmon->sel->isfloating || selmon->sel->isfixed;
+	if (selmon->sel->isfloating)
+		resize(selmon->sel, selmon->sel->x, selmon->sel->y,
+			selmon->sel->w, selmon->sel->h, 0);
+	arrange(selmon);
+}
+
+void
+togglescratch(const Arg *arg)
+{
+	Client *c;
+	unsigned int found = 0;
+
+	for (c = selmon->clients; c && !(found = c->tags & scratchtag); c = c->next);
+	if (found) {
+		unsigned int newtagset = selmon->tagset[selmon->seltags] ^ scratchtag;
+		if (newtagset) {
+			selmon->tagset[selmon->seltags] = newtagset;
+			focus(NULL);
+			arrange(selmon);
+		}
+		if (ISVISIBLE(c)) {
+			focus(c);
+			restack(selmon);
+		}
+	} else
+		spawn(arg);
+}
+
+void
+toggletag(const Arg *arg)
+{
+	unsigned int newtags;
+
+	if (!selmon->sel)
+		return;
+	newtags = selmon->sel->tags ^ (arg->ui & TAGMASK);
+	if (newtags) {
+		selmon->sel->tags = newtags;
+		focus(NULL);
+		arrange(selmon);
+	}
+}
+
+void
+toggleview(const Arg *arg)
+{
+	unsigned int newtagset = selmon->tagset[selmon->seltags] ^ (arg->ui & TAGMASK);
+
+	if (newtagset) {
+		selmon->tagset[selmon->seltags] = newtagset;
+		focus(NULL);
+		arrange(selmon);
+	}
+}
+
+void
+freeicon(Client *c)
+{
+	if (c->icon) {
+		XRenderFreePicture(dpy, c->icon);
+		c->icon = None;
+	}
+}
+
+void
+unfocus(Client *c, int setfocus)
+{
+	if (!c)
+		return;
+	grabbuttons(c, 0);
+	XSetWindowBorder(dpy, c->win, scheme[SchemeNorm][ColBorder].pixel);
+	if (setfocus) {
+		XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
+		XDeleteProperty(dpy, root, netatom[NetActiveWindow]);
+	}
+}
+
+void
+unmanage(Client *c, int destroyed)
+{
+	Monitor *m = c->mon;
+	XWindowChanges wc;
+
+	detach(c);
+	detachstack(c);
+	freeicon(c);
+	if (!destroyed) {
+		wc.border_width = c->oldbw;
+		XGrabServer(dpy); /* avoid race conditions */
+		XSetErrorHandler(xerrordummy);
+		XSelectInput(dpy, c->win, NoEventMask);
+		XConfigureWindow(dpy, c->win, CWBorderWidth, &wc); /* restore border */
+		XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
+		setclientstate(c, WithdrawnState);
+		XSync(dpy, False);
+		XSetErrorHandler(xerror);
+		XUngrabServer(dpy);
+	}
+	free(c);
+	focus(NULL);
+	updateclientlist();
+	arrange(m);
+}
+
+void
+unmapnotify(XEvent *e)
+{
+	Client *c;
+	XUnmapEvent *ev = &e->xunmap;
+
+	if ((c = wintoclient(ev->window))) {
+		if (ev->send_event)
+			setclientstate(c, WithdrawnState);
+		else
+			unmanage(c, 0);
+	}
+	else if ((c = wintosystrayicon(ev->window))) {
+		/* KLUDGE! sometimes icons occasionally unmap their windows, but do
+		 * _not_ destroy them. We map those windows back */
+		XMapRaised(dpy, c->win);
+		updatesystray();
+	}
+}
+
+void
+updatebars(void)
+{
+	unsigned int w;
+	Monitor *m;
+	XSetWindowAttributes wa = {
+		.override_redirect = True,
+		.background_pixmap = ParentRelative,
+		.event_mask = ButtonPressMask|ExposureMask
+	};
+	XClassHint ch = {"birdwm", "birdwm"};
+	for (m = mons; m; m = m->next) {
+		if (m->barwin)
+			continue;
+		//m->barwin = XCreateWindow(dpy, root, m->wx + sp, m->by + vp, m->ww - 2 * sp, bh, 0, DefaultDepth(dpy, screen),
+		w = m->ww;
+		if (showsystray && m == systraytomon(m))
+			w -= getsystraywidth();
+		m->barwin = XCreateWindow(dpy, root, m->wx + sp, m ->by + vp, w - 2 * sp, bh, 0, DefaultDepth(dpy, screen),
+				CopyFromParent, DefaultVisual(dpy, screen),
+				CWOverrideRedirect|CWBackPixmap|CWEventMask, &wa);
+		XDefineCursor(dpy, m->barwin, cursor[CurNormal]->cursor);
+		if (showsystray && m == systraytomon(m))
+			XMapRaised(dpy, systray->win);
+		XMapRaised(dpy, m->barwin);
+		XSetClassHint(dpy, m->barwin, &ch);
+	}
+}
+
+void
+updatebarpos(Monitor *m)
+{
+	m->wy = m->my;
+	m->wh = m->mh;
+	if (m->showbar) {
+		m->wh = m->wh - vertpad - bh;
+		m->by = m->topbar ? m->wy : m->wy + m->wh + vertpad;
+		m->wy = m->topbar ? m->wy + bh + vp : m->wy;
+	} else
+		m->by = -bh - vp;
+}
+
+void
+updateclientlist(void)
+{
+	Client *c;
+	Monitor *m;
+
+	XDeleteProperty(dpy, root, netatom[NetClientList]);
+	for (m = mons; m; m = m->next)
+		for (c = m->clients; c; c = c->next)
+			XChangeProperty(dpy, root, netatom[NetClientList],
+				XA_WINDOW, 32, PropModeAppend,
+				(unsigned char *) &(c->win), 1);
+}
+
+int
+updategeom(void)
+{
+	int dirty = 0;
+
+#ifdef XINERAMA
+	if (XineramaIsActive(dpy)) {
+		int i, j, n, nn;
+		Client *c;
+		Monitor *m;
+		XineramaScreenInfo *info = XineramaQueryScreens(dpy, &nn);
+		XineramaScreenInfo *unique = NULL;
+
+		for (n = 0, m = mons; m; m = m->next, n++);
+		/* only consider unique geometries as separate screens */
+		unique = ecalloc(nn, sizeof(XineramaScreenInfo));
+		for (i = 0, j = 0; i < nn; i++)
+			if (isuniquegeom(unique, j, &info[i]))
+				memcpy(&unique[j++], &info[i], sizeof(XineramaScreenInfo));
+		XFree(info);
+		nn = j;
+
+		/* new monitors if nn > n */
+		for (i = n; i < nn; i++) {
+			for (m = mons; m && m->next; m = m->next);
+			if (m)
+				m->next = createmon();
+			else
+				mons = createmon();
+		}
+		for (i = 0, m = mons; i < nn && m; m = m->next, i++)
+			if (i >= n
+			|| unique[i].x_org != m->mx || unique[i].y_org != m->my
+			|| unique[i].width != m->mw || unique[i].height != m->mh)
+			{
+				dirty = 1;
+				m->num = i;
+				m->mx = m->wx = unique[i].x_org;
+				m->my = m->wy = unique[i].y_org;
+				m->mw = m->ww = unique[i].width;
+				m->mh = m->wh = unique[i].height;
+				updatebarpos(m);
+			}
+		/* removed monitors if n > nn */
+		for (i = nn; i < n; i++) {
+			for (m = mons; m && m->next; m = m->next);
+			while ((c = m->clients)) {
+				dirty = 1;
+				m->clients = c->next;
+				detachstack(c);
+				c->mon = mons;
+				attach(c);
+				attachstack(c);
+			}
+			if (m == selmon)
+				selmon = mons;
+			cleanupmon(m);
+		}
+		free(unique);
+	} else
+#endif /* XINERAMA */
+	{ /* default monitor setup */
+		if (!mons)
+			mons = createmon();
+		if (mons->mw != sw || mons->mh != sh) {
+			dirty = 1;
+			mons->mw = mons->ww = sw;
+			mons->mh = mons->wh = sh;
+			updatebarpos(mons);
+		}
+	}
+	if (dirty) {
+		selmon = mons;
+		selmon = wintomon(root);
+	}
+	return dirty;
+}
+
+void
+updatenumlockmask(void)
+{
+	unsigned int i, j;
+	XModifierKeymap *modmap;
+
+	numlockmask = 0;
+	modmap = XGetModifierMapping(dpy);
+	for (i = 0; i < 8; i++)
+		for (j = 0; j < modmap->max_keypermod; j++)
+			if (modmap->modifiermap[i * modmap->max_keypermod + j]
+				== XKeysymToKeycode(dpy, XK_Num_Lock))
+				numlockmask = (1 << i);
+	XFreeModifiermap(modmap);
+}
+
+void
+updatesizehints(Client *c)
+{
+	long msize;
+	XSizeHints size;
+
+	if (!XGetWMNormalHints(dpy, c->win, &size, &msize))
+		/* size is uninitialized, ensure that size.flags aren't used */
+		size.flags = PSize;
+	if (size.flags & PBaseSize) {
+		c->basew = size.base_width;
+		c->baseh = size.base_height;
+	} else if (size.flags & PMinSize) {
+		c->basew = size.min_width;
+		c->baseh = size.min_height;
+	} else
+		c->basew = c->baseh = 0;
+	if (size.flags & PResizeInc) {
+		c->incw = size.width_inc;
+		c->inch = size.height_inc;
+	} else
+		c->incw = c->inch = 0;
+	if (size.flags & PMaxSize) {
+		c->maxw = size.max_width;
+		c->maxh = size.max_height;
+	} else
+		c->maxw = c->maxh = 0;
+	if (size.flags & PMinSize) {
+		c->minw = size.min_width;
+		c->minh = size.min_height;
+	} else if (size.flags & PBaseSize) {
+		c->minw = size.base_width;
+		c->minh = size.base_height;
+	} else
+		c->minw = c->minh = 0;
+	if (size.flags & PAspect) {
+		c->mina = (float)size.min_aspect.y / size.min_aspect.x;
+		c->maxa = (float)size.max_aspect.x / size.max_aspect.y;
+	} else
+		c->maxa = c->mina = 0.0;
+	c->isfixed = (c->maxw && c->maxh && c->maxw == c->minw && c->maxh == c->minh);
+	c->hintsvalid = 1;
+}
+
+void
+updatestatus(void)
+{
+	if (!gettextprop(root, XA_WM_NAME, stext, sizeof(stext)))
+		strcpy(stext, "birdwm-"VERSION);
+	drawbar(selmon);
+	updatesystray();
+}
+
+
+void
+updatesystrayicongeom(Client *i, int w, int h)
+{
+	if (i) {
+		i->h = bh;
+		if (w == h)
+			i->w = bh;
+		else if (h == bh)
+			i->w = w;
+		else
+			i->w = (int) ((float)bh * ((float)w / (float)h));
+		applysizehints(i, &(i->x), &(i->y), &(i->w), &(i->h), False);
+		/* force icons into the systray dimensions if they don't want to */
+		if (i->h > bh) {
+			if (i->w == i->h)
+				i->w = bh;
+			else
+				i->w = (int) ((float)bh * ((float)i->w / (float)i->h));
+			i->h = bh;
+		}
+	}
+}
+
+void
+updatesystrayiconstate(Client *i, XPropertyEvent *ev)
+{
+	long flags;
+	int code = 0;
+
+	if (!showsystray || !i || ev->atom != xatom[XembedInfo] ||
+			!(flags = getatomprop(i, xatom[XembedInfo])))
+		return;
+
+	if (flags & XEMBED_MAPPED && !i->tags) {
+		i->tags = 1;
+		code = XEMBED_WINDOW_ACTIVATE;
+		XMapRaised(dpy, i->win);
+		setclientstate(i, NormalState);
+	}
+	else if (!(flags & XEMBED_MAPPED) && i->tags) {
+		i->tags = 0;
+		code = XEMBED_WINDOW_DEACTIVATE;
+		XUnmapWindow(dpy, i->win);
+		setclientstate(i, WithdrawnState);
+	}
+	else
+		return;
+	sendevent(i->win, xatom[Xembed], StructureNotifyMask, CurrentTime, code, 0,
+			systray->win, XEMBED_EMBEDDED_VERSION);
+}
+
+void
+updatesystray(void)
+{
+	XSetWindowAttributes wa;
+	XWindowChanges wc;
+	Client *i;
+	Monitor *m = systraytomon(NULL);
+	unsigned int x = m->mx + m->mw - vp;
+	unsigned int y = m->by + sp;
+	unsigned int sw = TEXTW(stext) - lrpad + systrayspacing;
+	unsigned int w = 1;
+
+	if (!showsystray)
+		return;
+	if (systrayonleft)
+		x -= sw + lrpad / 2;
+	if (!systray) {
+		/* init systray */
+		if (!(systray = (Systray *)calloc(1, sizeof(Systray))))
+			die("fatal: could not malloc() %u bytes\n", sizeof(Systray));
+		systray->win = XCreateSimpleWindow(dpy, root, x, y, w, bh, 0, 0, scheme[SchemeSel][ColBg].pixel);
+		wa.event_mask        = ButtonPressMask | ExposureMask;
+		wa.override_redirect = True;
+		wa.background_pixel  = scheme[SchemeNorm][ColBg].pixel;
+		XSelectInput(dpy, systray->win, SubstructureNotifyMask);
+		XChangeProperty(dpy, systray->win, netatom[NetSystemTrayOrientation], XA_CARDINAL, 32,
+				PropModeReplace, (unsigned char *)&netatom[NetSystemTrayOrientationHorz], 1);
+		XChangeWindowAttributes(dpy, systray->win, CWEventMask|CWOverrideRedirect|CWBackPixel, &wa);
+		XMapRaised(dpy, systray->win);
+		XSetSelectionOwner(dpy, netatom[NetSystemTray], systray->win, CurrentTime);
+		if (XGetSelectionOwner(dpy, netatom[NetSystemTray]) == systray->win) {
+			sendevent(root, xatom[Manager], StructureNotifyMask, CurrentTime, netatom[NetSystemTray], systray->win, 0, 0);
+			XSync(dpy, False);
+		}
+		else {
+			fprintf(stderr, "birdwm: unable to obtain system tray.\n");
+			free(systray);
+			systray = NULL;
+			return;
+		}
+	}
+	for (w = 0, i = systray->icons; i; i = i->next) {
+		/* make sure the background color stays the same */
+		wa.background_pixel  = scheme[SchemeNorm][ColBg].pixel;
+		XChangeWindowAttributes(dpy, i->win, CWBackPixel, &wa);
+		XMapRaised(dpy, i->win);
+		w += systrayspacing;
+		i->x = w;
+		XMoveResizeWindow(dpy, i->win, i->x, y - sp, i->w, i->h);
+		w += i->w;
+		if (i->mon != m)
+			i->mon = m;
+	}
+	w = w ? w + systrayspacing : 1;
+	x -= w;
+	XMoveResizeWindow(dpy, systray->win, x, y, w, bh);
+	wc.x = x; wc.y = y; wc.width = w; wc.height = bh;
+	wc.stack_mode = Above; wc.sibling = m->barwin;
+	XConfigureWindow(dpy, systray->win, CWX|CWY|CWWidth|CWHeight|CWSibling|CWStackMode, &wc);
+	XMapWindow(dpy, systray->win);
+	XMapSubwindows(dpy, systray->win);
+	/* redraw background */
+	XSetForeground(dpy, drw->gc, scheme[SchemeNorm][ColBg].pixel);
+	XFillRectangle(dpy, systray->win, drw->gc, 0, 0, w, bh);
+	XSync(dpy, False);
+}
+
+void
+updatetitle(Client *c)
+{
+	if (!gettextprop(c->win, netatom[NetWMName], c->name, sizeof c->name))
+		gettextprop(c->win, XA_WM_NAME, c->name, sizeof c->name);
+	if (c->name[0] == '\0') /* hack to mark broken clients */
+		strcpy(c->name, broken);
+}
+
+void
+updateicon(Client *c)
+{
+	freeicon(c);
+	c->icon = geticonprop(c->win, &c->icw, &c->ich);
+}
+
+void
+updatewindowtype(Client *c)
+{
+	Atom state = getatomprop(c, netatom[NetWMState]);
+	Atom wtype = getatomprop(c, netatom[NetWMWindowType]);
+
+	if (state == netatom[NetWMFullscreen])
+		setfullscreen(c, 1);
+	if (wtype == netatom[NetWMWindowTypeDialog])
+		c->isfloating = 1;
+}
+
+void
+updatewmhints(Client *c)
+{
+	XWMHints *wmh;
+
+	if ((wmh = XGetWMHints(dpy, c->win))) {
+		if (c == selmon->sel && wmh->flags & XUrgencyHint) {
+			wmh->flags &= ~XUrgencyHint;
+			XSetWMHints(dpy, c->win, wmh);
+		} else
+			c->isurgent = (wmh->flags & XUrgencyHint) ? 1 : 0;
+		if (wmh->flags & InputHint)
+			c->neverfocus = !wmh->input;
+		else
+			c->neverfocus = 0;
+		XFree(wmh);
+	}
+}
+
+void
+view(const Arg *arg)
+{
+	if ((arg->ui & TAGMASK) == selmon->tagset[selmon->seltags])
+		return;
+	selmon->seltags ^= 1; /* toggle sel tagset */
+	if (arg->ui & TAGMASK)
+		selmon->tagset[selmon->seltags] = arg->ui & TAGMASK;
+	focus(NULL);
+	arrange(selmon);
+}
+
+Client *
+wintoclient(Window w)
+{
+	Client *c;
+	Monitor *m;
+
+	for (m = mons; m; m = m->next)
+		for (c = m->clients; c; c = c->next)
+			if (c->win == w)
+				return c;
+	return NULL;
+}
+
+Client *
+wintosystrayicon(Window w) {
+	Client *i = NULL;
+
+	if (!showsystray || !w)
+		return i;
+	for (i = systray->icons; i && i->win != w; i = i->next) ;
+	return i;
+}
+
+Monitor *
+wintomon(Window w)
+{
+	int x, y;
+	Client *c;
+	Monitor *m;
+
+	if (w == root && getrootptr(&x, &y))
+		return recttomon(x, y, 1, 1);
+	for (m = mons; m; m = m->next)
+		if (w == m->barwin)
+			return m;
+	if ((c = wintoclient(w)))
+		return c->mon;
+	return selmon;
+}
+
+/* There's no way to check accesses to destroyed windows, thus those cases are
+ * ignored (especially on UnmapNotify's). Other types of errors call Xlibs
+ * default error handler, which may call exit. */
+int
+xerror(Display *dpy, XErrorEvent *ee)
+{
+	if (ee->error_code == BadWindow
+	|| (ee->request_code == X_SetInputFocus && ee->error_code == BadMatch)
+	|| (ee->request_code == X_PolyText8 && ee->error_code == BadDrawable)
+	|| (ee->request_code == X_PolyFillRectangle && ee->error_code == BadDrawable)
+	|| (ee->request_code == X_PolySegment && ee->error_code == BadDrawable)
+	|| (ee->request_code == X_ConfigureWindow && ee->error_code == BadMatch)
+	|| (ee->request_code == X_GrabButton && ee->error_code == BadAccess)
+	|| (ee->request_code == X_GrabKey && ee->error_code == BadAccess)
+	|| (ee->request_code == X_CopyArea && ee->error_code == BadDrawable))
+		return 0;
+	fprintf(stderr, "birdwm: fatal error: request code=%d, error code=%d\n",
+		ee->request_code, ee->error_code);
+	return xerrorxlib(dpy, ee); /* may call exit */
+}
+
+int
+xerrordummy(Display *dpy, XErrorEvent *ee)
+{
+	return 0;
+}
+
+/* Startup Error handler to check if another window manager
+ * is already running. */
+int
+xerrorstart(Display *dpy, XErrorEvent *ee)
+{
+	die("birdwm: another window manager is already running");
+	return -1;
+}
+
+Monitor *
+systraytomon(Monitor *m) {
+	Monitor *t;
+	int i, n;
+	if(!systraypinning) {
+		if(!m)
+			return selmon;
+		return m == selmon ? m : NULL;
+	}
+	for(n = 1, t = mons; t && t->next; n++, t = t->next) ;
+	for(i = 1, t = mons; t && t->next && i < systraypinning; i++, t = t->next) ;
+	if(systraypinningfailfirst && n < systraypinning)
+		return mons;
+	return t;
+}
+
+void
+xrdb(const Arg *arg)
+{
+  loadxrdb();
+  int i;
+  for (i = 0; i < LENGTH(colors); i++)
+                scheme[i] = drw_scm_create(drw, colors[i], 3);
+  focus(NULL);
+  arrange(NULL);
+}
+
+void
+zoom(const Arg *arg)
+{
+	Client *c = selmon->sel;
+
+	if (!selmon->lt[selmon->sellt]->arrange || !c || c->isfloating)
+		return;
+	if (c == nexttiled(selmon->clients) && !(c = nexttiled(c->next)))
+		return;
+	pop(c);
+}
+
+int
+main(int argc, char *argv[])
+{
+	if (argc == 2 && !strcmp("-v", argv[1]))
+		die("birdwm-"VERSION);
+	else if (argc != 1)
+		die("usage: birdwm [-v]");
+	if (!setlocale(LC_CTYPE, "") || !XSupportsLocale())
+		fputs("warning: no locale support\n", stderr);
+	if (!(dpy = XOpenDisplay(NULL)))
+		die("birdwm: cannot open display");
+	checkotherwm();
+	autostart_exec();
+        XrmInitialize();
+        loadxrdb();
+	setup();
+#ifdef __OpenBSD__
+	if (pledge("stdio rpath proc exec", NULL) == -1)
+		die("pledge");
+#endif /* __OpenBSD__ */
+	scan();
+	run();
+	cleanup();
+	XCloseDisplay(dpy);
+	return EXIT_SUCCESS;
+}
+
diff --git a/config.mk b/config.mk
@@ -1,4 +1,4 @@
-# dwm version
+# birdwm version
 VERSION = 6.6
 
 # Customize below to fit your system
diff --git a/dwm.1 b/dwm.1
@@ -1,176 +0,0 @@
-.TH DWM 1 dwm\-VERSION
-.SH NAME
-dwm \- dynamic window manager
-.SH SYNOPSIS
-.B dwm
-.RB [ \-v ]
-.SH DESCRIPTION
-dwm is a dynamic window manager for X. It manages windows in tiled, monocle
-and floating layouts. Either layout can be applied dynamically, optimising the
-environment for the application in use and the task performed.
-.P
-In tiled layouts windows are managed in a master and stacking area. The master
-area on the left contains one window by default, and the stacking area on the
-right contains all other windows. The number of master area windows can be
-adjusted from zero to an arbitrary number. In monocle layout all windows are
-maximised to the screen size. In floating layout windows can be resized and
-moved freely. Dialog windows are always managed floating, regardless of the
-layout applied.
-.P
-Windows are grouped by tags. Each window can be tagged with one or multiple
-tags. Selecting certain tags displays all windows with these tags.
-.P
-Each screen contains a small status bar which displays all available tags, the
-layout, the title of the focused window, and the text read from the root window
-name property, if the screen is focused. A floating window is indicated with an
-empty square and a maximised floating window is indicated with a filled square
-before the windows title.  The selected tags are indicated with a different
-color. The tags of the focused window are indicated with a filled square in the
-top left corner.  The tags which are applied to one or more windows are
-indicated with an empty square in the top left corner.
-.P
-dwm draws a small border around windows to indicate the focus state.
-.SH OPTIONS
-.TP
-.B \-v
-prints version information to stderr, then exits.
-.SH USAGE
-.SS Status bar
-.TP
-.B X root window name
-is read and displayed in the status text area. It can be set with the
-.BR xsetroot (1)
-command.
-.TP
-.B Button1
-click on a tag label to display all windows with that tag, click on the layout
-label toggles between tiled and floating layout.
-.TP
-.B Button3
-click on a tag label adds/removes all windows with that tag to/from the view.
-.TP
-.B Mod1\-Button1
-click on a tag label applies that tag to the focused window.
-.TP
-.B Mod1\-Button3
-click on a tag label adds/removes that tag to/from the focused window.
-.SS Keyboard commands
-.TP
-.B Mod1\-Shift\-Return
-Start
-.BR st(1).
-.TP
-.B Mod1\-p
-Spawn
-.BR dmenu(1)
-for launching other programs.
-.TP
-.B Mod1\-,
-Focus previous screen, if any.
-.TP
-.B Mod1\-.
-Focus next screen, if any.
-.TP
-.B Mod1\-Shift\-,
-Send focused window to previous screen, if any.
-.TP
-.B Mod1\-Shift\-.
-Send focused window to next screen, if any.
-.TP
-.B Mod1\-b
-Toggles bar on and off.
-.TP
-.B Mod1\-t
-Sets tiled layout.
-.TP
-.B Mod1\-f
-Sets floating layout.
-.TP
-.B Mod1\-m
-Sets monocle layout.
-.TP
-.B Mod1\-space
-Toggles between current and previous layout.
-.TP
-.B Mod1\-j
-Focus next window.
-.TP
-.B Mod1\-k
-Focus previous window.
-.TP
-.B Mod1\-i
-Increase number of windows in master area.
-.TP
-.B Mod1\-d
-Decrease number of windows in master area.
-.TP
-.B Mod1\-l
-Increase master area size.
-.TP
-.B Mod1\-h
-Decrease master area size.
-.TP
-.B Mod1\-Return
-Zooms/cycles focused window to/from master area (tiled layouts only).
-.TP
-.B Mod1\-Shift\-c
-Close focused window.
-.TP
-.B Mod1\-Shift\-space
-Toggle focused window between tiled and floating state.
-.TP
-.B Mod1\-Tab
-Toggles to the previously selected tags.
-.TP
-.B Mod1\-Shift\-[1..n]
-Apply nth tag to focused window.
-.TP
-.B Mod1\-Shift\-0
-Apply all tags to focused window.
-.TP
-.B Mod1\-Control\-Shift\-[1..n]
-Add/remove nth tag to/from focused window.
-.TP
-.B Mod1\-[1..n]
-View all windows with nth tag.
-.TP
-.B Mod1\-0
-View all windows with any tag.
-.TP
-.B Mod1\-Control\-[1..n]
-Add/remove all windows with nth tag to/from the view.
-.TP
-.B Mod1\-Shift\-q
-Quit dwm.
-.SS Mouse commands
-.TP
-.B Mod1\-Button1
-Move focused window while dragging. Tiled windows will be toggled to the floating state.
-.TP
-.B Mod1\-Button2
-Toggles focused window between floating and tiled state.
-.TP
-.B Mod1\-Button3
-Resize focused window while dragging. Tiled windows will be toggled to the floating state.
-.SH CUSTOMIZATION
-dwm is customized by creating a custom config.h and (re)compiling the source
-code. This keeps it fast, secure and simple.
-.SH SEE ALSO
-.BR dmenu (1),
-.BR st (1)
-.SH ISSUES
-Java applications which use the XToolkit/XAWT backend may draw grey windows
-only. The XToolkit/XAWT backend breaks ICCCM-compliance in recent JDK 1.5 and early
-JDK 1.6 versions, because it assumes a reparenting window manager. Possible workarounds
-are using JDK 1.4 (which doesn't contain the XToolkit/XAWT backend) or setting the
-environment variable
-.BR AWT_TOOLKIT=MToolkit
-(to use the older Motif backend instead) or running
-.B xprop -root -f _NET_WM_NAME 32a -set _NET_WM_NAME LG3D
-or
-.B wmname LG3D
-(to pretend that a non-reparenting window manager is running that the
-XToolkit/XAWT backend can recognize) or when using OpenJDK setting the environment variable
-.BR _JAVA_AWT_WM_NONREPARENTING=1 .
-.SH BUGS
-Send all bug reports with a patch to hackers@suckless.org.
diff --git a/dwm.c b/dwm.c
@@ -1,2804 +0,0 @@
-/* See LICENSE file for copyright and license details.
- *
- * dynamic window manager is designed like any other X client as well. It is
- * driven through handling X events. In contrast to other X clients, a window
- * manager selects for SubstructureRedirectMask on the root window, to receive
- * events about window (dis-)appearance. Only one X connection at a time is
- * allowed to select for this event mask.
- *
- * The event handlers of dwm are organized in an array which is accessed
- * whenever a new event has been fetched. This allows event dispatching
- * in O(1) time.
- *
- * Each child of the root window is called a client, except windows which have
- * set the override_redirect flag. Clients are organized in a linked client
- * list on each monitor, the focus history is remembered through a stack list
- * on each monitor. Each client contains a bit array to indicate the tags of a
- * client.
- *
- * Keys and tagging rules are organized as arrays and defined in config.h.
- *
- * To understand everything else, start reading main().
- */
-#include <errno.h>
-#include <locale.h>
-#include <signal.h>
-#include <stdarg.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <limits.h>
-#include <stdint.h>
-#include <sys/types.h>
-#include <sys/wait.h>
-#include <X11/cursorfont.h>
-#include <X11/keysym.h>
-#include <X11/Xatom.h>
-#include <X11/Xlib.h>
-#include <X11/Xproto.h>
-#include <X11/Xresource.h>
-#include <X11/Xutil.h>
-#ifdef XINERAMA
-#include <X11/extensions/Xinerama.h>
-#endif /* XINERAMA */
-#include <X11/Xft/Xft.h>
-
-#include "drw.h"
-#include "util.h"
-
-/* macros */
-#define BUTTONMASK              (ButtonPressMask|ButtonReleaseMask)
-#define CLEANMASK(mask)         (mask & ~(numlockmask|LockMask) & (ShiftMask|ControlMask|Mod1Mask|Mod2Mask|Mod3Mask|Mod4Mask|Mod5Mask))
-#define INTERSECT(x,y,w,h,m)    (MAX(0, MIN((x)+(w),(m)->wx+(m)->ww) - MAX((x),(m)->wx)) \
-                               * MAX(0, MIN((y)+(h),(m)->wy+(m)->wh) - MAX((y),(m)->wy)))
-#define ISVISIBLE(C)            ((C->tags & C->mon->tagset[C->mon->seltags]))
-#define MOUSEMASK               (BUTTONMASK|PointerMotionMask)
-#define WIDTH(X)                ((X)->w + 2 * (X)->bw + gappx)
-#define HEIGHT(X)               ((X)->h + 2 * (X)->bw + gappx)
-#define TAGMASK                 ((1 << LENGTH(tags)) - 1)
-#define TEXTW(X)                (drw_fontset_getwidth(drw, (X)) + lrpad)
-#define XRDB_LOAD_COLOR(R,V)    if (XrmGetResource(xrdb, R, NULL, &type, &value) == True) { \
-                                  if (value.addr != NULL && strnlen(value.addr, 8) == 7 && value.addr[0] == '#') { \
-                                    int i = 1; \
-                                    for (; i <= 6; i++) { \
-                                      if (value.addr[i] < 48) break; \
-                                      if (value.addr[i] > 57 && value.addr[i] < 65) break; \
-                                      if (value.addr[i] > 70 && value.addr[i] < 97) break; \
-                                      if (value.addr[i] > 102) break; \
-                                    } \
-                                    if (i == 7) { \
-                                      strncpy(V, value.addr, 7); \
-                                      V[7] = '\0'; \
-                                    } \
-                                  } \
-                                }
-
-#define SYSTEM_TRAY_REQUEST_DOCK    0
-/* XEMBED messages */
-#define XEMBED_EMBEDDED_NOTIFY      0
-#define XEMBED_WINDOW_ACTIVATE      1
-#define XEMBED_FOCUS_IN             4
-#define XEMBED_MODALITY_ON         10
-#define XEMBED_MAPPED              (1 << 0)
-#define XEMBED_WINDOW_ACTIVATE      1
-#define XEMBED_WINDOW_DEACTIVATE    2
-#define VERSION_MAJOR               0
-#define VERSION_MINOR               0
-#define XEMBED_EMBEDDED_VERSION (VERSION_MAJOR << 16) | VERSION_MINOR
-
-/* enums */
-enum { CurNormal, CurResize, CurMove, CurLast }; /* cursor */
-enum { SchemeNorm, SchemeSel }; /* color schemes */
-enum { NetSupported, NetWMName, NetWMIcon, NetWMState, NetWMCheck,
-       NetSystemTray, NetSystemTrayOP, NetSystemTrayOrientation, NetSystemTrayOrientationHorz,
-       NetWMFullscreen, NetActiveWindow, NetWMWindowType,
-       NetWMWindowTypeDialog, NetClientList, NetLast }; /* EWMH atoms */
-enum { Manager, Xembed, XembedInfo, XLast }; /* Xembed atoms */
-enum { WMProtocols, WMDelete, WMState, WMTakeFocus, WMLast }; /* default atoms */
-enum { ClkTagBar, ClkLtSymbol, ClkStatusText, ClkWinTitle,
-       ClkClientWin, ClkRootWin, ClkLast }; /* clicks */
-
-typedef union {
-	int i;
-	unsigned int ui;
-	float f;
-	const void *v;
-} Arg;
-
-typedef struct {
-	unsigned int click;
-	unsigned int mask;
-	unsigned int button;
-	void (*func)(const Arg *arg);
-	const Arg arg;
-} Button;
-
-typedef struct Monitor Monitor;
-typedef struct Client Client;
-struct Client {
-	char name[256];
-	float mina, maxa;
-	int x, y, w, h;
-	int oldx, oldy, oldw, oldh;
-	int basew, baseh, incw, inch, maxw, maxh, minw, minh, hintsvalid;
-	int bw, oldbw;
-	unsigned int tags;
-	int isfixed, isfloating, isurgent, neverfocus, oldstate, isfullscreen;
-	unsigned int icw, ich; Picture icon;
-	Client *next;
-	Client *snext;
-	Monitor *mon;
-	Window win;
-};
-
-typedef struct {
-	unsigned int mod;
-	KeySym keysym;
-	void (*func)(const Arg *);
-	const Arg arg;
-} Key;
-
-typedef struct {
-	const char *symbol;
-	void (*arrange)(Monitor *);
-} Layout;
-
-struct Monitor {
-	char ltsymbol[16];
-	float mfact;
-	int nmaster;
-	int num;
-	int by;               /* bar geometry */
-	int mx, my, mw, mh;   /* screen size */
-	int wx, wy, ww, wh;   /* window area  */
-	unsigned int seltags;
-	unsigned int sellt;
-	unsigned int tagset[2];
-	int showbar;
-	int topbar;
-	Client *clients;
-	Client *sel;
-	Client *stack;
-	Monitor *next;
-	Window barwin;
-	const Layout *lt[2];
-};
-
-typedef struct {
-	const char *class;
-	const char *instance;
-	const char *title;
-	unsigned int tags;
-	int isfloating;
-	int monitor;
-} Rule;
-
-typedef struct Systray   Systray;
-struct Systray {
-	Window win;
-	Client *icons;
-};
-
-/* function declarations */
-static void applyrules(Client *c);
-static int applysizehints(Client *c, int *x, int *y, int *w, int *h, int interact);
-static void arrange(Monitor *m);
-static void arrangemon(Monitor *m);
-static void attach(Client *c);
-static void attachstack(Client *c);
-static void buttonpress(XEvent *e);
-static void checkotherwm(void);
-static void cleanup(void);
-static void cleanupmon(Monitor *mon);
-static void clientmessage(XEvent *e);
-static void configure(Client *c);
-static void configurenotify(XEvent *e);
-static void configurerequest(XEvent *e);
-static Monitor *createmon(void);
-static void destroynotify(XEvent *e);
-static void detach(Client *c);
-static void detachstack(Client *c);
-static Monitor *dirtomon(int dir);
-static void drawbar(Monitor *m);
-static void drawbars(void);
-static void enternotify(XEvent *e);
-static void expose(XEvent *e);
-static void focus(Client *c);
-static void focusin(XEvent *e);
-static void focusmon(const Arg *arg);
-static void focusstack(const Arg *arg);
-static Atom getatomprop(Client *c, Atom prop);
-static Picture geticonprop(Window w, unsigned int *icw, unsigned int *ich);
-static int getrootptr(int *x, int *y);
-static long getstate(Window w);
-static unsigned int getsystraywidth();
-static int gettextprop(Window w, Atom atom, char *text, unsigned int size);
-static void grabbuttons(Client *c, int focused);
-static void grabkeys(void);
-static void incnmaster(const Arg *arg);
-static void keypress(XEvent *e);
-static void killclient(const Arg *arg);
-static void loadxrdb(void);
-static void manage(Window w, XWindowAttributes *wa);
-static void mappingnotify(XEvent *e);
-static void maprequest(XEvent *e);
-static void monocle(Monitor *m);
-static void motionnotify(XEvent *e);
-static void movemouse(const Arg *arg);
-static Client *nexttiled(Client *c);
-static void pop(Client *c);
-static void propertynotify(XEvent *e);
-static void quit(const Arg *arg);
-static Monitor *recttomon(int x, int y, int w, int h);
-static void removesystrayicon(Client *i);
-static void resize(Client *c, int x, int y, int w, int h, int interact);
-static void resizebarwin(Monitor *m);
-static void resizeclient(Client *c, int x, int y, int w, int h);
-static void resizemouse(const Arg *arg);
-static void resizerequest(XEvent *e);
-static void restack(Monitor *m);
-static void run(void);
-static void scan(void);
-static int sendevent(Window w, Atom proto, int m, long d0, long d1, long d2, long d3, long d4);
-static void sendmon(Client *c, Monitor *m);
-static void setclientstate(Client *c, long state);
-static void setfocus(Client *c);
-static void setfullscreen(Client *c, int fullscreen);
-static void setlayout(const Arg *arg);
-static void setmfact(const Arg *arg);
-static void setup(void);
-static void seturgent(Client *c, int urg);
-static void showhide(Client *c);
-static void spawn(const Arg *arg);
-static Monitor *systraytomon(Monitor *m);
-static void tag(const Arg *arg);
-static void tagmon(const Arg *arg);
-static void tile(Monitor *m);
-static void togglebar(const Arg *arg);
-static void togglefloating(const Arg *arg);
-static void togglescratch(const Arg *arg);
-static void toggletag(const Arg *arg);
-static void toggleview(const Arg *arg);
-static void freeicon(Client *c);
-static void unfocus(Client *c, int setfocus);
-static void unmanage(Client *c, int destroyed);
-static void unmapnotify(XEvent *e);
-static void updatebarpos(Monitor *m);
-static void updatebars(void);
-static void updateclientlist(void);
-static int updategeom(void);
-static void updatenumlockmask(void);
-static void updatesizehints(Client *c);
-static void updatestatus(void);
-static void updatesystray(void);
-static void updatesystrayicongeom(Client *i, int w, int h);
-static void updatesystrayiconstate(Client *i, XPropertyEvent *ev);
-static void updatetitle(Client *c);
-static void updateicon(Client *c);
-static void updatewindowtype(Client *c);
-static void updatewmhints(Client *c);
-static void view(const Arg *arg);
-static Client *wintoclient(Window w);
-static Monitor *wintomon(Window w);
-static Client *wintosystrayicon(Window w);
-static int xerror(Display *dpy, XErrorEvent *ee);
-static int xerrordummy(Display *dpy, XErrorEvent *ee);
-static int xerrorstart(Display *dpy, XErrorEvent *ee);
-static void xrdb(const Arg *arg);
-static void zoom(const Arg *arg);
-static void autostart_exec(void);
-
-/* variables */
-static Systray *systray = NULL;
-static const char broken[] = "broken";
-static char stext[256];
-static int screen;
-static int sw, sh;           /* X display screen geometry width, height */
-static int bh;               /* bar height */
-static int lrpad;            /* sum of left and right padding for text */
-static int vp;               /* vertical padding for bar */
-static int sp;               /* side padding for bar */
-static int (*xerrorxlib)(Display *, XErrorEvent *);
-static unsigned int numlockmask = 0;
-static void (*handler[LASTEvent]) (XEvent *) = {
-	[ButtonPress] = buttonpress,
-	[ClientMessage] = clientmessage,
-	[ConfigureRequest] = configurerequest,
-	[ConfigureNotify] = configurenotify,
-	[DestroyNotify] = destroynotify,
-	[EnterNotify] = enternotify,
-	[Expose] = expose,
-	[FocusIn] = focusin,
-	[KeyPress] = keypress,
-	[MappingNotify] = mappingnotify,
-	[MapRequest] = maprequest,
-	[MotionNotify] = motionnotify,
-	[PropertyNotify] = propertynotify,
-	[ResizeRequest] = resizerequest,
-	[UnmapNotify] = unmapnotify
-};
-static Atom wmatom[WMLast], netatom[NetLast], xatom[XLast];
-static int running = 1;
-static Cur *cursor[CurLast];
-static Clr **scheme;
-static Display *dpy;
-static Drw *drw;
-static Monitor *mons, *selmon;
-static Window root, wmcheckwin;
-
-/* configuration, allows nested code to access above variables */
-#include "config.h"
-
-static unsigned int scratchtag = 1 << LENGTH(tags);
-
-/* compile-time check if all tags fit into an unsigned int bit array. */
-struct NumTags { char limitexceeded[LENGTH(tags) > 31 ? -1 : 1]; };
-
-/* dwm will keep pid's of processes from autostart array and kill them at quit */
-static pid_t *autostart_pids;
-static size_t autostart_len;
-
-/* execute command from autostart array */
-static void
-autostart_exec() {
-	const char *const *p;
-	size_t i = 0;
-
-	/* count entries */
-	for (p = autostart; *p; autostart_len++, p++)
-		while (*++p);
-
-	autostart_pids = malloc(autostart_len * sizeof(pid_t));
-	for (p = autostart; *p; i++, p++) {
-		if ((autostart_pids[i] = fork()) == 0) {
-			setsid();
-			execvp(*p, (char *const *)p);
-			fprintf(stderr, "dwm: execvp %s\n", *p);
-			perror(" failed");
-			_exit(EXIT_FAILURE);
-		}
-		/* skip arguments */
-		while (*++p);
-	}
-}
-
-
-
-/* function implementations */
-void
-applyrules(Client *c)
-{
-	const char *class, *instance;
-	unsigned int i;
-	const Rule *r;
-	Monitor *m;
-	XClassHint ch = { NULL, NULL };
-
-	/* rule matching */
-	c->isfloating = 0;
-	c->tags = 0;
-	XGetClassHint(dpy, c->win, &ch);
-	class    = ch.res_class ? ch.res_class : broken;
-	instance = ch.res_name  ? ch.res_name  : broken;
-
-	for (i = 0; i < LENGTH(rules); i++) {
-		r = &rules[i];
-		if ((!r->title || strstr(c->name, r->title))
-		&& (!r->class || strstr(class, r->class))
-		&& (!r->instance || strstr(instance, r->instance)))
-		{
-			c->isfloating = r->isfloating;
-			c->tags |= r->tags;
-			for (m = mons; m && m->num != r->monitor; m = m->next);
-			if (m)
-				c->mon = m;
-		}
-	}
-	if (ch.res_class)
-		XFree(ch.res_class);
-	if (ch.res_name)
-		XFree(ch.res_name);
-	c->tags = c->tags & TAGMASK ? c->tags & TAGMASK : c->mon->tagset[c->mon->seltags];
-}
-
-int
-applysizehints(Client *c, int *x, int *y, int *w, int *h, int interact)
-{
-	int baseismin;
-	Monitor *m = c->mon;
-
-	/* set minimum possible */
-	*w = MAX(1, *w);
-	*h = MAX(1, *h);
-	if (interact) {
-		if (*x > sw)
-			*x = sw - WIDTH(c);
-		if (*y > sh)
-			*y = sh - HEIGHT(c);
-		if (*x + *w + 2 * c->bw < 0)
-			*x = 0;
-		if (*y + *h + 2 * c->bw < 0)
-			*y = 0;
-	} else {
-		if (*x >= m->wx + m->ww)
-			*x = m->wx + m->ww - WIDTH(c);
-		if (*y >= m->wy + m->wh)
-			*y = m->wy + m->wh - HEIGHT(c);
-		if (*x + *w + 2 * c->bw <= m->wx)
-			*x = m->wx;
-		if (*y + *h + 2 * c->bw <= m->wy)
-			*y = m->wy;
-	}
-	if (*h < bh)
-		*h = bh;
-	if (*w < bh)
-		*w = bh;
-	if (resizehints || c->isfloating || !c->mon->lt[c->mon->sellt]->arrange) {
-		if (!c->hintsvalid)
-			updatesizehints(c);
-		/* see last two sentences in ICCCM 4.1.2.3 */
-		baseismin = c->basew == c->minw && c->baseh == c->minh;
-		if (!baseismin) { /* temporarily remove base dimensions */
-			*w -= c->basew;
-			*h -= c->baseh;
-		}
-		/* adjust for aspect limits */
-		if (c->mina > 0 && c->maxa > 0) {
-			if (c->maxa < (float)*w / *h)
-				*w = *h * c->maxa + 0.5;
-			else if (c->mina < (float)*h / *w)
-				*h = *w * c->mina + 0.5;
-		}
-		if (baseismin) { /* increment calculation requires this */
-			*w -= c->basew;
-			*h -= c->baseh;
-		}
-		/* adjust for increment value */
-		if (c->incw)
-			*w -= *w % c->incw;
-		if (c->inch)
-			*h -= *h % c->inch;
-		/* restore base dimensions */
-		*w = MAX(*w + c->basew, c->minw);
-		*h = MAX(*h + c->baseh, c->minh);
-		if (c->maxw)
-			*w = MIN(*w, c->maxw);
-		if (c->maxh)
-			*h = MIN(*h, c->maxh);
-	}
-	return *x != c->x || *y != c->y || *w != c->w || *h != c->h;
-}
-
-void
-arrange(Monitor *m)
-{
-	if (m)
-		showhide(m->stack);
-	else for (m = mons; m; m = m->next)
-		showhide(m->stack);
-	if (m) {
-		arrangemon(m);
-		restack(m);
-	} else for (m = mons; m; m = m->next)
-		arrangemon(m);
-}
-
-void
-arrangemon(Monitor *m)
-{
-	strncpy(m->ltsymbol, m->lt[m->sellt]->symbol, sizeof m->ltsymbol);
-	if (m->lt[m->sellt]->arrange)
-		m->lt[m->sellt]->arrange(m);
-}
-
-void
-attach(Client *c)
-{
-	c->next = c->mon->clients;
-	c->mon->clients = c;
-}
-
-void
-attachstack(Client *c)
-{
-	c->snext = c->mon->stack;
-	c->mon->stack = c;
-}
-
-void
-buttonpress(XEvent *e)
-{
-	unsigned int i, x, click;
-	Arg arg = {0};
-	Client *c;
-	Monitor *m;
-	XButtonPressedEvent *ev = &e->xbutton;
-
-	click = ClkRootWin;
-	/* focus monitor if necessary */
-	if ((m = wintomon(ev->window)) && m != selmon) {
-		unfocus(selmon->sel, 1);
-		selmon = m;
-		focus(NULL);
-	}
-	if (ev->window == selmon->barwin) {
-		i = x = 0;
-		do
-			x += TEXTW(tags[i]);
-		while (ev->x >= x && ++i < LENGTH(tags));
-		if (i < LENGTH(tags)) {
-			click = ClkTagBar;
-			arg.ui = 1 << i;
-		} else if (ev->x < x + TEXTW(selmon->ltsymbol))
-			click = ClkLtSymbol;
-		else if (ev->x > selmon->ww - (int)TEXTW(stext) - getsystraywidth())
-			click = ClkStatusText;
-		else
-			click = ClkWinTitle;
-	} else if ((c = wintoclient(ev->window))) {
-		focus(c);
-		restack(selmon);
-		XAllowEvents(dpy, ReplayPointer, CurrentTime);
-		click = ClkClientWin;
-	}
-	for (i = 0; i < LENGTH(buttons); i++)
-		if (click == buttons[i].click && buttons[i].func && buttons[i].button == ev->button
-		&& CLEANMASK(buttons[i].mask) == CLEANMASK(ev->state))
-			buttons[i].func(click == ClkTagBar && buttons[i].arg.i == 0 ? &arg : &buttons[i].arg);
-}
-
-void
-checkotherwm(void)
-{
-	xerrorxlib = XSetErrorHandler(xerrorstart);
-	/* this causes an error if some other window manager is running */
-	XSelectInput(dpy, DefaultRootWindow(dpy), SubstructureRedirectMask);
-	XSync(dpy, False);
-	XSetErrorHandler(xerror);
-	XSync(dpy, False);
-}
-
-void
-cleanup(void)
-{
-	Arg a = {.ui = ~0};
-	Layout foo = { "", NULL };
-	Monitor *m;
-	size_t i;
-
-	view(&a);
-	selmon->lt[selmon->sellt] = &foo;
-	for (m = mons; m; m = m->next)
-		while (m->stack)
-			unmanage(m->stack, 0);
-	XUngrabKey(dpy, AnyKey, AnyModifier, root);
-	while (mons)
-		cleanupmon(mons);
-
-	if (showsystray) {
-		XUnmapWindow(dpy, systray->win);
-		XDestroyWindow(dpy, systray->win);
-		free(systray);
-	}
-
-	for (i = 0; i < CurLast; i++)
-		drw_cur_free(drw, cursor[i]);
-	for (i = 0; i < LENGTH(colors); i++)
-		free(scheme[i]);
-	free(scheme);
-	XDestroyWindow(dpy, wmcheckwin);
-	drw_free(drw);
-	XSync(dpy, False);
-	XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
-	XDeleteProperty(dpy, root, netatom[NetActiveWindow]);
-}
-
-void
-cleanupmon(Monitor *mon)
-{
-	Monitor *m;
-
-	if (mon == mons)
-		mons = mons->next;
-	else {
-		for (m = mons; m && m->next != mon; m = m->next);
-		m->next = mon->next;
-	}
-	XUnmapWindow(dpy, mon->barwin);
-	XDestroyWindow(dpy, mon->barwin);
-	free(mon);
-}
-
-void
-clientmessage(XEvent *e)
-{
-	XWindowAttributes wa;
-	XSetWindowAttributes swa;
-	XClientMessageEvent *cme = &e->xclient;
-	Client *c = wintoclient(cme->window);
-
-	if (showsystray && cme->window == systray->win && cme->message_type == netatom[NetSystemTrayOP]) {
-		/* add systray icons */
-		if (cme->data.l[1] == SYSTEM_TRAY_REQUEST_DOCK) {
-			if (!(c = (Client *)calloc(1, sizeof(Client))))
-				die("fatal: could not malloc() %u bytes\n", sizeof(Client));
-			if (!(c->win = cme->data.l[2])) {
-				free(c);
-				return;
-			}
-			c->mon = selmon;
-			c->next = systray->icons;
-			systray->icons = c;
-			if (!XGetWindowAttributes(dpy, c->win, &wa)) {
-				/* use sane defaults */
-				wa.width = bh;
-				wa.height = bh;
-				wa.border_width = 0;
-			}
-			c->x = c->oldx = c->y = c->oldy = 0;
-			c->w = c->oldw = wa.width;
-			c->h = c->oldh = wa.height;
-			c->oldbw = wa.border_width;
-			c->bw = 0;
-			c->isfloating = True;
-			/* reuse tags field as mapped status */
-			c->tags = 1;
-			updatesizehints(c);
-			updatesystrayicongeom(c, wa.width, wa.height);
-			XAddToSaveSet(dpy, c->win);
-			XSelectInput(dpy, c->win, StructureNotifyMask | PropertyChangeMask | ResizeRedirectMask);
-			XReparentWindow(dpy, c->win, systray->win, 0, 0);
-			/* use parents background color */
-			swa.background_pixel  = scheme[SchemeNorm][ColBg].pixel;
-			XChangeWindowAttributes(dpy, c->win, CWBackPixel, &swa);
-			sendevent(c->win, netatom[Xembed], StructureNotifyMask, CurrentTime, XEMBED_EMBEDDED_NOTIFY, 0 , systray->win, XEMBED_EMBEDDED_VERSION);
-			/* FIXME not sure if I have to send these events, too */
-			sendevent(c->win, netatom[Xembed], StructureNotifyMask, CurrentTime, XEMBED_FOCUS_IN, 0 , systray->win, XEMBED_EMBEDDED_VERSION);
-			sendevent(c->win, netatom[Xembed], StructureNotifyMask, CurrentTime, XEMBED_WINDOW_ACTIVATE, 0 , systray->win, XEMBED_EMBEDDED_VERSION);
-			sendevent(c->win, netatom[Xembed], StructureNotifyMask, CurrentTime, XEMBED_MODALITY_ON, 0 , systray->win, XEMBED_EMBEDDED_VERSION);
-			XSync(dpy, False);
-			resizebarwin(selmon);
-			updatesystray();
-			setclientstate(c, NormalState);
-		}
-		return;
-	}
-
-	if (!c)
-		return;
-	if (cme->message_type == netatom[NetWMState]) {
-		if (cme->data.l[1] == netatom[NetWMFullscreen]
-		|| cme->data.l[2] == netatom[NetWMFullscreen])
-			setfullscreen(c, (cme->data.l[0] == 1 /* _NET_WM_STATE_ADD    */
-				|| (cme->data.l[0] == 2 /* _NET_WM_STATE_TOGGLE */ && !c->isfullscreen)));
-	} else if (cme->message_type == netatom[NetActiveWindow]) {
-		if (c != selmon->sel && !c->isurgent)
-			seturgent(c, 1);
-	}
-}
-
-void
-configure(Client *c)
-{
-	XConfigureEvent ce;
-
-	ce.type = ConfigureNotify;
-	ce.display = dpy;
-	ce.event = c->win;
-	ce.window = c->win;
-	ce.x = c->x;
-	ce.y = c->y;
-	ce.width = c->w;
-	ce.height = c->h;
-	ce.border_width = c->bw;
-	ce.above = None;
-	ce.override_redirect = False;
-	XSendEvent(dpy, c->win, False, StructureNotifyMask, (XEvent *)&ce);
-}
-
-void
-configurenotify(XEvent *e)
-{
-	Monitor *m;
-	Client *c;
-	XConfigureEvent *ev = &e->xconfigure;
-	int dirty;
-
-	/* TODO: updategeom handling sucks, needs to be simplified */
-	if (ev->window == root) {
-		dirty = (sw != ev->width || sh != ev->height);
-		sw = ev->width;
-		sh = ev->height;
-		if (updategeom() || dirty) {
-			drw_resize(drw, sw, bh);
-			updatebars();
-			for (m = mons; m; m = m->next) {
-				for (c = m->clients; c; c = c->next)
-					if (c->isfullscreen)
-						resizeclient(c, m->mx, m->my, m->mw, m->mh);
-				//XMoveResizeWindow(dpy, m->barwin, m->wx + sp, m->by + vp, m->ww -  2 * sp, bh);
-				resizebarwin(m);
-			}
-			focus(NULL);
-			arrange(NULL);
-		}
-	}
-}
-
-void
-configurerequest(XEvent *e)
-{
-	Client *c;
-	Monitor *m;
-	XConfigureRequestEvent *ev = &e->xconfigurerequest;
-	XWindowChanges wc;
-
-	if ((c = wintoclient(ev->window))) {
-		if (ev->value_mask & CWBorderWidth)
-			c->bw = ev->border_width;
-		else if (c->isfloating || !selmon->lt[selmon->sellt]->arrange) {
-			m = c->mon;
-			if (ev->value_mask & CWX) {
-				c->oldx = c->x;
-				c->x = m->mx + ev->x;
-			}
-			if (ev->value_mask & CWY) {
-				c->oldy = c->y;
-				c->y = m->my + ev->y;
-			}
-			if (ev->value_mask & CWWidth) {
-				c->oldw = c->w;
-				c->w = ev->width;
-			}
-			if (ev->value_mask & CWHeight) {
-				c->oldh = c->h;
-				c->h = ev->height;
-			}
-			if ((c->x + c->w) > m->mx + m->mw && c->isfloating)
-				c->x = m->mx + (m->mw / 2 - WIDTH(c) / 2); /* center in x direction */
-			if ((c->y + c->h) > m->my + m->mh && c->isfloating)
-				c->y = m->my + (m->mh / 2 - HEIGHT(c) / 2); /* center in y direction */
-			if ((ev->value_mask & (CWX|CWY)) && !(ev->value_mask & (CWWidth|CWHeight)))
-				configure(c);
-			if (ISVISIBLE(c))
-				XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h);
-		} else
-			configure(c);
-	} else {
-		wc.x = ev->x;
-		wc.y = ev->y;
-		wc.width = ev->width;
-		wc.height = ev->height;
-		wc.border_width = ev->border_width;
-		wc.sibling = ev->above;
-		wc.stack_mode = ev->detail;
-		XConfigureWindow(dpy, ev->window, ev->value_mask, &wc);
-	}
-	XSync(dpy, False);
-}
-
-Monitor *
-createmon(void)
-{
-	Monitor *m;
-
-	m = ecalloc(1, sizeof(Monitor));
-	m->tagset[0] = m->tagset[1] = 1;
-	m->mfact = mfact;
-	m->nmaster = nmaster;
-	m->showbar = showbar;
-	m->topbar = topbar;
-	m->lt[0] = &layouts[0];
-	m->lt[1] = &layouts[1 % LENGTH(layouts)];
-	strncpy(m->ltsymbol, layouts[0].symbol, sizeof m->ltsymbol);
-	return m;
-}
-
-void
-destroynotify(XEvent *e)
-{
-	Client *c;
-	XDestroyWindowEvent *ev = &e->xdestroywindow;
-
-	if ((c = wintoclient(ev->window)))
-		unmanage(c, 1);
-	else if ((c = wintosystrayicon(ev->window))) {
-		removesystrayicon(c);
-		resizebarwin(selmon);
-		updatesystray();
-	}
-}
-
-void
-detach(Client *c)
-{
-	Client **tc;
-
-	for (tc = &c->mon->clients; *tc && *tc != c; tc = &(*tc)->next);
-	*tc = c->next;
-}
-
-void
-detachstack(Client *c)
-{
-	Client **tc, *t;
-
-	for (tc = &c->mon->stack; *tc && *tc != c; tc = &(*tc)->snext);
-	*tc = c->snext;
-
-	if (c == c->mon->sel) {
-		for (t = c->mon->stack; t && !ISVISIBLE(t); t = t->snext);
-		c->mon->sel = t;
-	}
-}
-
-Monitor *
-dirtomon(int dir)
-{
-	Monitor *m = NULL;
-
-	if (dir > 0) {
-		if (!(m = selmon->next))
-			m = mons;
-	} else if (selmon == mons)
-		for (m = mons; m->next; m = m->next);
-	else
-		for (m = mons; m->next != selmon; m = m->next);
-	return m;
-}
-
-void
-drawbar(Monitor *m)
-{
-	int x, w, tw = 0, stw = 0;
-	int boxs = drw->fonts->h / 9;
-	int boxw = drw->fonts->h / 6 + 2;
-	unsigned int i, occ = 0, urg = 0;
-	Client *c;
-
-	if (!m->showbar)
-		return;
-
-	if (showsystray && m == systraytomon(m) && !systrayonleft)
-		stw = getsystraywidth();
-
-	/* draw status first so it can be overdrawn by tags later */
-	if (m == selmon) { /* status is only drawn on selected monitor */
-		drw_setscheme(drw, scheme[SchemeNorm]);
-		tw = TEXTW(stext) - lrpad / 2 + 2; /* 2px right padding */
-		drw_text(drw, m->ww - tw - stw - 2 * sp, 0, sw, bh, lrpad / 2 - 2, stext, 0);
-	}
-
-	resizebarwin(m);
-	for (c = m->clients; c; c = c->next) {
-		occ |= c->tags;
-		if (c->isurgent)
-			urg |= c->tags;
-	}
-	x = 0;
-	for (i = 0; i < LENGTH(tags); i++) {
-		w = TEXTW(tags[i]);
-		drw_setscheme(drw, scheme[m->tagset[m->seltags] & 1 << i ? SchemeSel : SchemeNorm]);
-		drw_text(drw, x, 0, w, bh, lrpad / 2, tags[i], urg & 1 << i);
-		if (occ & 1 << i)
-			drw_rect(drw, x + boxs, boxs, boxw, boxw,
-				m == selmon && selmon->sel && selmon->sel->tags & 1 << i,
-				urg & 1 << i);
-		x += w;
-	}
-	w = TEXTW(m->ltsymbol);
-	drw_setscheme(drw, scheme[SchemeNorm]);
-	x = drw_text(drw, x, 0, w, bh, lrpad / 2, m->ltsymbol, 0);
-
-	if ((w = m->ww - tw - stw - x) > bh) {
-		if (m->sel) {
-			drw_setscheme(drw, scheme[m == selmon ? SchemeSel : SchemeNorm]);
-			drw_text(drw, x, 0, w - 2 * sp, bh, lrpad / 2 + (m->sel->icon ? m->sel->icw + ICONSPACING : 0), m->sel->name, 0);
-			if (m->sel->icon) drw_pic(drw, x + lrpad / 2, (bh -m->sel->ich) / 2, m->sel->icw, m->sel->ich, m->sel->icon);
-			if (m->sel->isfloating)
-				drw_rect(drw, x + boxs, boxs, boxw, boxw, m->sel->isfixed, 0);
-		} else {
-			drw_setscheme(drw, scheme[SchemeNorm]);
-			drw_rect(drw, x, 0, w - 2 * sp, bh, 1, 1);
-		}
-	}
-	drw_map(drw, m->barwin, 0, 0, m->ww - stw, bh);
-}
-
-void
-drawbars(void)
-{
-	Monitor *m;
-
-	for (m = mons; m; m = m->next)
-		drawbar(m);
-}
-
-void
-enternotify(XEvent *e)
-{
-	Client *c;
-	Monitor *m;
-	XCrossingEvent *ev = &e->xcrossing;
-
-	if ((ev->mode != NotifyNormal || ev->detail == NotifyInferior) && ev->window != root)
-		return;
-	c = wintoclient(ev->window);
-	m = c ? c->mon : wintomon(ev->window);
-	if (m != selmon) {
-		unfocus(selmon->sel, 1);
-		selmon = m;
-	} else if (!c || c == selmon->sel)
-		return;
-	focus(c);
-}
-
-void
-expose(XEvent *e)
-{
-	Monitor *m;
-	XExposeEvent *ev = &e->xexpose;
-
-	if (ev->count == 0 && (m = wintomon(ev->window))) {
-		drawbar(m);
-		if (m == selmon)
-			updatesystray();
-	}
-}
-
-void
-focus(Client *c)
-{
-	if (!c || !ISVISIBLE(c))
-		for (c = selmon->stack; c && !ISVISIBLE(c); c = c->snext);
-	if (selmon->sel && selmon->sel != c)
-		unfocus(selmon->sel, 0);
-	if (c) {
-		if (c->mon != selmon)
-			selmon = c->mon;
-		if (c->isurgent)
-			seturgent(c, 0);
-		detachstack(c);
-		attachstack(c);
-		grabbuttons(c, 1);
-		XSetWindowBorder(dpy, c->win, scheme[SchemeSel][ColBorder].pixel);
-		setfocus(c);
-	} else {
-		XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
-		XDeleteProperty(dpy, root, netatom[NetActiveWindow]);
-	}
-	selmon->sel = c;
-	drawbars();
-}
-
-/* there are some broken focus acquiring clients needing extra handling */
-void
-focusin(XEvent *e)
-{
-	XFocusChangeEvent *ev = &e->xfocus;
-
-	if (selmon->sel && ev->window != selmon->sel->win)
-		setfocus(selmon->sel);
-}
-
-void
-focusmon(const Arg *arg)
-{
-	Monitor *m;
-
-	if (!mons->next)
-		return;
-	if ((m = dirtomon(arg->i)) == selmon)
-		return;
-	unfocus(selmon->sel, 0);
-	selmon = m;
-	focus(NULL);
-}
-
-void
-focusstack(const Arg *arg)
-{
-	Client *c = NULL, *i;
-
-	if (!selmon->sel || (selmon->sel->isfullscreen && lockfullscreen))
-		return;
-	if (arg->i > 0) {
-		for (c = selmon->sel->next; c && !ISVISIBLE(c); c = c->next);
-		if (!c)
-			for (c = selmon->clients; c && !ISVISIBLE(c); c = c->next);
-	} else {
-		for (i = selmon->clients; i != selmon->sel; i = i->next)
-			if (ISVISIBLE(i))
-				c = i;
-		if (!c)
-			for (; i; i = i->next)
-				if (ISVISIBLE(i))
-					c = i;
-	}
-	if (c) {
-		focus(c);
-		restack(selmon);
-	}
-}
-
-Atom
-getatomprop(Client *c, Atom prop)
-{
-	int di;
-	unsigned long dl;
-	unsigned char *p = NULL;
-	Atom da, atom = None;
-
-	/* FIXME getatomprop should return the number of items and a pointer to
-	 * the stored data instead of this workaround */
-	Atom req = XA_ATOM;
-	if (prop == xatom[XembedInfo])
-		req = xatom[XembedInfo];
-
-	if (XGetWindowProperty(dpy, c->win, prop, 0L, sizeof atom, False, req,
-		&da, &di, &dl, &dl, &p) == Success && p) {
-		atom = *(Atom *)p;
-		if (da == xatom[XembedInfo] && dl == 2)
-			atom = ((Atom *)p)[1];
-		XFree(p);
-	}
-	return atom;
-}
-
-unsigned int
-getsystraywidth()
-{
-	unsigned int w = 0;
-	Client *i;
-	if(showsystray)
-		for(i = systray->icons; i; w += i->w + systrayspacing, i = i->next) ;
-	return w ? w + systrayspacing : 1;
-}
-
-static uint32_t prealpha(uint32_t p) {
-	uint8_t a = p >> 24u;
-	uint32_t rb = (a * (p & 0xFF00FFu)) >> 8u;
-	uint32_t g = (a * (p & 0x00FF00u)) >> 8u;
-	return (rb & 0xFF00FFu) | (g & 0x00FF00u) | (a << 24u);
-}
-
-Picture
-geticonprop(Window win, unsigned int *picw, unsigned int *pich)
-{
-	int format;
-	unsigned long n, extra, *p = NULL;
-	Atom real;
-
-	if (XGetWindowProperty(dpy, win, netatom[NetWMIcon], 0L, LONG_MAX, False, AnyPropertyType, 
-						   &real, &format, &n, &extra, (unsigned char **)&p) != Success)
-		return None; 
-	if (n == 0 || format != 32) { XFree(p); return None; }
-
-	unsigned long *bstp = NULL;
-	uint32_t w, h, sz;
-	{
-		unsigned long *i; const unsigned long *end = p + n;
-		uint32_t bstd = UINT32_MAX, d, m;
-		for (i = p; i < end - 1; i += sz) {
-			if ((w = *i++) >= 16384 || (h = *i++) >= 16384) { XFree(p); return None; }
-			if ((sz = w * h) > end - i) break;
-			if ((m = w > h ? w : h) >= ICONSIZE && (d = m - ICONSIZE) < bstd) { bstd = d; bstp = i; }
-		}
-		if (!bstp) {
-			for (i = p; i < end - 1; i += sz) {
-				if ((w = *i++) >= 16384 || (h = *i++) >= 16384) { XFree(p); return None; }
-				if ((sz = w * h) > end - i) break;
-				if ((d = ICONSIZE - (w > h ? w : h)) < bstd) { bstd = d; bstp = i; }
-			}
-		}
-		if (!bstp) { XFree(p); return None; }
-	}
-
-	if ((w = *(bstp - 2)) == 0 || (h = *(bstp - 1)) == 0) { XFree(p); return None; }
-
-	uint32_t icw, ich;
-	if (w <= h) {
-		ich = ICONSIZE; icw = w * ICONSIZE / h;
-		if (icw == 0) icw = 1;
-	}
-	else {
-		icw = ICONSIZE; ich = h * ICONSIZE / w;
-		if (ich == 0) ich = 1;
-	}
-	*picw = icw; *pich = ich;
-
-	uint32_t i, *bstp32 = (uint32_t *)bstp;
-	for (sz = w * h, i = 0; i < sz; ++i) bstp32[i] = prealpha(bstp[i]);
-
-	Picture ret = drw_picture_create_resized(drw, (char *)bstp, w, h, icw, ich);
-	XFree(p);
-
-	return ret;
-}
-
-int
-getrootptr(int *x, int *y)
-{
-	int di;
-	unsigned int dui;
-	Window dummy;
-
-	return XQueryPointer(dpy, root, &dummy, &dummy, x, y, &di, &di, &dui);
-}
-
-long
-getstate(Window w)
-{
-	int format;
-	long result = -1;
-	unsigned char *p = NULL;
-	unsigned long n, extra;
-	Atom real;
-
-	if (XGetWindowProperty(dpy, w, wmatom[WMState], 0L, 2L, False, wmatom[WMState],
-		&real, &format, &n, &extra, (unsigned char **)&p) != Success)
-		return -1;
-	if (n != 0)
-		result = *p;
-	XFree(p);
-	return result;
-}
-
-int
-gettextprop(Window w, Atom atom, char *text, unsigned int size)
-{
-	char **list = NULL;
-	int n;
-	XTextProperty name;
-
-	if (!text || size == 0)
-		return 0;
-	text[0] = '\0';
-	if (!XGetTextProperty(dpy, w, &name, atom) || !name.nitems)
-		return 0;
-	if (name.encoding == XA_STRING) {
-		strncpy(text, (char *)name.value, size - 1);
-	} else if (XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success && n > 0 && *list) {
-		strncpy(text, *list, size - 1);
-		XFreeStringList(list);
-	}
-	text[size - 1] = '\0';
-	XFree(name.value);
-	return 1;
-}
-
-void
-grabbuttons(Client *c, int focused)
-{
-	updatenumlockmask();
-	{
-		unsigned int i, j;
-		unsigned int modifiers[] = { 0, LockMask, numlockmask, numlockmask|LockMask };
-		XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
-		if (!focused)
-			XGrabButton(dpy, AnyButton, AnyModifier, c->win, False,
-				BUTTONMASK, GrabModeSync, GrabModeSync, None, None);
-		for (i = 0; i < LENGTH(buttons); i++)
-			if (buttons[i].click == ClkClientWin)
-				for (j = 0; j < LENGTH(modifiers); j++)
-					XGrabButton(dpy, buttons[i].button,
-						buttons[i].mask | modifiers[j],
-						c->win, False, BUTTONMASK,
-						GrabModeAsync, GrabModeSync, None, None);
-	}
-}
-
-void
-grabkeys(void)
-{
-	updatenumlockmask();
-	{
-		unsigned int i, j, k;
-		unsigned int modifiers[] = { 0, LockMask, numlockmask, numlockmask|LockMask };
-		int start, end, skip;
-		KeySym *syms;
-
-		XUngrabKey(dpy, AnyKey, AnyModifier, root);
-		XDisplayKeycodes(dpy, &start, &end);
-		syms = XGetKeyboardMapping(dpy, start, end - start + 1, &skip);
-		if (!syms)
-			return;
-		for (k = start; k <= end; k++)
-			for (i = 0; i < LENGTH(keys); i++)
-				/* skip modifier codes, we do that ourselves */
-				if (keys[i].keysym == syms[(k - start) * skip])
-					for (j = 0; j < LENGTH(modifiers); j++)
-						XGrabKey(dpy, k,
-							 keys[i].mod | modifiers[j],
-							 root, True,
-							 GrabModeAsync, GrabModeAsync);
-		XFree(syms);
-	}
-}
-
-void
-incnmaster(const Arg *arg)
-{
-	selmon->nmaster = MAX(selmon->nmaster + arg->i, 0);
-	arrange(selmon);
-}
-
-#ifdef XINERAMA
-static int
-isuniquegeom(XineramaScreenInfo *unique, size_t n, XineramaScreenInfo *info)
-{
-	while (n--)
-		if (unique[n].x_org == info->x_org && unique[n].y_org == info->y_org
-		&& unique[n].width == info->width && unique[n].height == info->height)
-			return 0;
-	return 1;
-}
-#endif /* XINERAMA */
-
-void
-keypress(XEvent *e)
-{
-	unsigned int i;
-	KeySym keysym;
-	XKeyEvent *ev;
-
-	ev = &e->xkey;
-	keysym = XKeycodeToKeysym(dpy, (KeyCode)ev->keycode, 0);
-	for (i = 0; i < LENGTH(keys); i++)
-		if (keysym == keys[i].keysym
-		&& CLEANMASK(keys[i].mod) == CLEANMASK(ev->state)
-		&& keys[i].func)
-			keys[i].func(&(keys[i].arg));
-}
-
-void
-killclient(const Arg *arg)
-{
-	if (!selmon->sel)
-		return;
-
-	if (!sendevent(selmon->sel->win, wmatom[WMDelete], NoEventMask, wmatom[WMDelete], CurrentTime, 0 , 0, 0)) {
-		XGrabServer(dpy);
-		XSetErrorHandler(xerrordummy);
-		XSetCloseDownMode(dpy, DestroyAll);
-		XKillClient(dpy, selmon->sel->win);
-		XSync(dpy, False);
-		XSetErrorHandler(xerror);
-		XUngrabServer(dpy);
-	}
-}
-
-void
-loadxrdb()
-{
-  Display *display;
-  char * resm;
-  XrmDatabase xrdb;
-  char *type;
-  XrmValue value;
-
-  display = XOpenDisplay(NULL);
-
-  if (display != NULL) {
-    resm = XResourceManagerString(display);
-
-    if (resm != NULL) {
-      xrdb = XrmGetStringDatabase(resm);
-
-      if (xrdb != NULL) {
-        XRDB_LOAD_COLOR("birdwm.normbordercolor", normbordercolor);
-        XRDB_LOAD_COLOR("birdwm.normbgcolor", normbgcolor);
-        XRDB_LOAD_COLOR("birdwm.normfgcolor", normfgcolor);
-        XRDB_LOAD_COLOR("birdwm.selbordercolor", selbordercolor);
-        XRDB_LOAD_COLOR("birdwm.selbgcolor", selbgcolor);
-        XRDB_LOAD_COLOR("birdwm.selfgcolor", selfgcolor);
-      }
-    }
-  }
-
-  XCloseDisplay(display);
-}
-
-void
-manage(Window w, XWindowAttributes *wa)
-{
-	Client *c, *t = NULL;
-	Window trans = None;
-	XWindowChanges wc;
-
-	c = ecalloc(1, sizeof(Client));
-	c->win = w;
-	/* geometry */
-	c->x = c->oldx = wa->x;
-	c->y = c->oldy = wa->y;
-	c->w = c->oldw = wa->width;
-	c->h = c->oldh = wa->height;
-	c->oldbw = wa->border_width;
-
-	updateicon(c);
-	updatetitle(c);
-	if (XGetTransientForHint(dpy, w, &trans) && (t = wintoclient(trans))) {
-		c->mon = t->mon;
-		c->tags = t->tags;
-	} else {
-		c->mon = selmon;
-		applyrules(c);
-	}
-
-	if (c->x + WIDTH(c) > c->mon->wx + c->mon->ww)
-		c->x = c->mon->wx + c->mon->ww - WIDTH(c);
-	if (c->y + HEIGHT(c) > c->mon->wy + c->mon->wh)
-		c->y = c->mon->wy + c->mon->wh - HEIGHT(c);
-	c->x = MAX(c->x, c->mon->wx);
-	c->y = MAX(c->y, c->mon->wy);
-	c->bw = borderpx;
-
-	selmon->tagset[selmon->seltags] &= ~scratchtag;
-	if (!strcmp(c->name, scratchpadname)) {
-		c->mon->tagset[c->mon->seltags] |= c->tags = scratchtag;
-		c->isfloating = True;
-		c->x = c->mon->wx + (c->mon->ww / 2 - WIDTH(c) / 2);
-		c->y = c->mon->wy + (c->mon->wh / 2 - HEIGHT(c) / 2);
-	}
-
-	wc.border_width = c->bw;
-	XConfigureWindow(dpy, w, CWBorderWidth, &wc);
-	XSetWindowBorder(dpy, w, scheme[SchemeNorm][ColBorder].pixel);
-	configure(c); /* propagates border_width, if size doesn't change */
-	updatewindowtype(c);
-	updatesizehints(c);
-	updatewmhints(c);
-	XSelectInput(dpy, w, EnterWindowMask|FocusChangeMask|PropertyChangeMask|StructureNotifyMask);
-	grabbuttons(c, 0);
-	if (!c->isfloating)
-		c->isfloating = c->oldstate = trans != None || c->isfixed;
-	if (c->isfloating)
-		XRaiseWindow(dpy, c->win);
-	attach(c);
-	attachstack(c);
-	XChangeProperty(dpy, root, netatom[NetClientList], XA_WINDOW, 32, PropModeAppend,
-		(unsigned char *) &(c->win), 1);
-	XMoveResizeWindow(dpy, c->win, c->x + 2 * sw, c->y, c->w, c->h); /* some windows require this */
-	setclientstate(c, NormalState);
-	if (c->mon == selmon)
-		unfocus(selmon->sel, 0);
-	c->mon->sel = c;
-	arrange(c->mon);
-	XMapWindow(dpy, c->win);
-	focus(NULL);
-}
-
-void
-mappingnotify(XEvent *e)
-{
-	XMappingEvent *ev = &e->xmapping;
-
-	XRefreshKeyboardMapping(ev);
-	if (ev->request == MappingKeyboard)
-		grabkeys();
-}
-
-void
-maprequest(XEvent *e)
-{
-	static XWindowAttributes wa;
-	XMapRequestEvent *ev = &e->xmaprequest;
-
-	Client *i;
-	if ((i = wintosystrayicon(ev->window))) {
-		sendevent(i->win, netatom[Xembed], StructureNotifyMask, CurrentTime, XEMBED_WINDOW_ACTIVATE, 0, systray->win, XEMBED_EMBEDDED_VERSION);
-		resizebarwin(selmon);
-		updatesystray();
-	}
-
-	if (!XGetWindowAttributes(dpy, ev->window, &wa) || wa.override_redirect)
-		return;
-	if (!wintoclient(ev->window))
-		manage(ev->window, &wa);
-}
-
-void
-monocle(Monitor *m)
-{
-	unsigned int n = 0;
-	Client *c;
-
-	for (c = m->clients; c; c = c->next)
-		if (ISVISIBLE(c))
-			n++;
-	if (n > 0) /* override layout symbol */
-		snprintf(m->ltsymbol, sizeof m->ltsymbol, "[%d]", n);
-	for (c = nexttiled(m->clients); c; c = nexttiled(c->next))
-		resize(c, m->wx, m->wy, m->ww - 2 * c->bw, m->wh - 2 * c->bw, 0);
-}
-
-void
-motionnotify(XEvent *e)
-{
-	static Monitor *mon = NULL;
-	Monitor *m;
-	XMotionEvent *ev = &e->xmotion;
-
-	if (ev->window != root)
-		return;
-	if ((m = recttomon(ev->x_root, ev->y_root, 1, 1)) != mon && mon) {
-		unfocus(selmon->sel, 1);
-		selmon = m;
-		focus(NULL);
-	}
-	mon = m;
-}
-
-void
-movemouse(const Arg *arg)
-{
-	int x, y, ocx, ocy, nx, ny;
-	Client *c;
-	Monitor *m;
-	XEvent ev;
-	Time lasttime = 0;
-
-	if (!(c = selmon->sel))
-		return;
-	if (c->isfullscreen) /* no support moving fullscreen windows by mouse */
-		return;
-	restack(selmon);
-	ocx = c->x;
-	ocy = c->y;
-	if (XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
-		None, cursor[CurMove]->cursor, CurrentTime) != GrabSuccess)
-		return;
-	if (!getrootptr(&x, &y))
-		return;
-	do {
-		XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask, &ev);
-		switch(ev.type) {
-		case ConfigureRequest:
-		case Expose:
-		case MapRequest:
-			handler[ev.type](&ev);
-			break;
-		case MotionNotify:
-			if ((ev.xmotion.time - lasttime) <= (1000 / 60))
-				continue;
-			lasttime = ev.xmotion.time;
-
-			nx = ocx + (ev.xmotion.x - x);
-			ny = ocy + (ev.xmotion.y - y);
-			if (abs(selmon->wx - nx) < snap)
-				nx = selmon->wx;
-			else if (abs((selmon->wx + selmon->ww) - (nx + WIDTH(c))) < snap)
-				nx = selmon->wx + selmon->ww - WIDTH(c);
-			if (abs(selmon->wy - ny) < snap)
-				ny = selmon->wy;
-			else if (abs((selmon->wy + selmon->wh) - (ny + HEIGHT(c))) < snap)
-				ny = selmon->wy + selmon->wh - HEIGHT(c);
-			if (!c->isfloating && selmon->lt[selmon->sellt]->arrange
-			&& (abs(nx - c->x) > snap || abs(ny - c->y) > snap))
-				togglefloating(NULL);
-			if (!selmon->lt[selmon->sellt]->arrange || c->isfloating)
-				resize(c, nx, ny, c->w, c->h, 1);
-			break;
-		}
-	} while (ev.type != ButtonRelease);
-	XUngrabPointer(dpy, CurrentTime);
-	if ((m = recttomon(c->x, c->y, c->w, c->h)) != selmon) {
-		sendmon(c, m);
-		selmon = m;
-		focus(NULL);
-	}
-}
-
-Client *
-nexttiled(Client *c)
-{
-	for (; c && (c->isfloating || !ISVISIBLE(c)); c = c->next);
-	return c;
-}
-
-void
-pop(Client *c)
-{
-	detach(c);
-	attach(c);
-	focus(c);
-	arrange(c->mon);
-}
-
-void
-propertynotify(XEvent *e)
-{
-	Client *c;
-	Window trans;
-	XPropertyEvent *ev = &e->xproperty;
-
-	if ((c = wintosystrayicon(ev->window))) {
-		if (ev->atom == XA_WM_NORMAL_HINTS) {
-			updatesizehints(c);
-			updatesystrayicongeom(c, c->w, c->h);
-		}
-		else
-			updatesystrayiconstate(c, ev);
-		resizebarwin(selmon);
-		updatesystray();
-	}
-
-	if ((ev->window == root) && (ev->atom == XA_WM_NAME))
-		updatestatus();
-	else if (ev->state == PropertyDelete)
-		return; /* ignore */
-	else if ((c = wintoclient(ev->window))) {
-		switch(ev->atom) {
-		default: break;
-		case XA_WM_TRANSIENT_FOR:
-			if (!c->isfloating && (XGetTransientForHint(dpy, c->win, &trans)) &&
-				(c->isfloating = (wintoclient(trans)) != NULL))
-				arrange(c->mon);
-			break;
-		case XA_WM_NORMAL_HINTS:
-			c->hintsvalid = 0;
-			break;
-		case XA_WM_HINTS:
-			updatewmhints(c);
-			drawbars();
-			break;
-		}
-		if (ev->atom == XA_WM_NAME || ev->atom == netatom[NetWMName]) {
-			updatetitle(c);
-			if (c == c->mon->sel)
-				drawbar(c->mon);
-		}
-		else if (ev->atom == netatom[NetWMIcon]) {
-			updateicon(c);
-			if (c == c->mon->sel)
-				drawbar(c->mon);
-		}
-		if (ev->atom == netatom[NetWMWindowType])
-			updatewindowtype(c);
-	}
-}
-
-void
-quit(const Arg *arg)
-{
-	size_t i;
-
-	/* kill child processes */
-	for (i = 0; i < autostart_len; i++) {
-		if (0 < autostart_pids[i]) {
-			kill(autostart_pids[i], SIGTERM);
-			waitpid(autostart_pids[i], NULL, 0);
-		}
-	}
-
-	running = 0;
-}
-
-Monitor *
-recttomon(int x, int y, int w, int h)
-{
-	Monitor *m, *r = selmon;
-	int a, area = 0;
-
-	for (m = mons; m; m = m->next)
-		if ((a = INTERSECT(x, y, w, h, m)) > area) {
-			area = a;
-			r = m;
-		}
-	return r;
-}
-
-void
-removesystrayicon(Client *i)
-{
-	Client **ii;
-
-	if (!showsystray || !i)
-		return;
-	for (ii = &systray->icons; *ii && *ii != i; ii = &(*ii)->next);
-	if (ii)
-		*ii = i->next;
-	free(i);
-}
-
-void
-resize(Client *c, int x, int y, int w, int h, int interact)
-{
-	if (applysizehints(c, &x, &y, &w, &h, interact))
-		resizeclient(c, x, y, w, h);
-}
-
-void
-resizebarwin(Monitor *m) {
-	unsigned int w = m->ww;
-	if (showsystray && m == systraytomon(m) && !systrayonleft)
-		w -= getsystraywidth();
-	XMoveResizeWindow(dpy, m->barwin, m->wx + sp, m->by + vp, w - 2 * sp, bh);
-}
-
-void
-resizeclient(Client *c, int x, int y, int w, int h)
-{
-	XWindowChanges wc;
-	unsigned int n;
-	unsigned int gapoffset;
-	unsigned int gapincr;
-	Client *nbc;
-
-	wc.border_width = c->bw;
-
-	/* Get number of clients for the client's monitor */
-	for (n = 0, nbc = nexttiled(c->mon->clients); nbc; nbc = nexttiled(nbc->next), n++);
-
-	/* Do nothing if layout is floating */
-	if (c->isfloating || c->mon->lt[c->mon->sellt]->arrange == NULL) {
-		gapincr = gapoffset = 0;
-	} else {
-		/* Remove border and gap if layout is monocle or only one client */
-		if (c->mon->lt[c->mon->sellt]->arrange == monocle || n == 1) {
-			gapoffset = 0;
-			gapincr = -2 * borderpx;
-			wc.border_width = 0;
-		} else {
-			gapoffset = gappx;
-			gapincr = 2 * gappx;
-		}
-	}
-
-	c->oldx = c->x; c->x = wc.x = x + gapoffset;
-	c->oldy = c->y; c->y = wc.y = y + gapoffset;
-	c->oldw = c->w; c->w = wc.width = w - gapincr;
-	c->oldh = c->h; c->h = wc.height = h - gapincr;
-
-	XConfigureWindow(dpy, c->win, CWX|CWY|CWWidth|CWHeight|CWBorderWidth, &wc);
-	configure(c);
-	XSync(dpy, False);
-}
-
-void
-resizerequest(XEvent *e)
-{
-	XResizeRequestEvent *ev = &e->xresizerequest;
-	Client *i;
-
-	if ((i = wintosystrayicon(ev->window))) {
-		updatesystrayicongeom(i, ev->width, ev->height);
-		resizebarwin(selmon);
-		updatesystray();
-	}
-}
-
-void
-resizemouse(const Arg *arg)
-{
-	int ocx, ocy, nw, nh;
-	Client *c;
-	Monitor *m;
-	XEvent ev;
-	Time lasttime = 0;
-
-	if (!(c = selmon->sel))
-		return;
-	if (c->isfullscreen) /* no support resizing fullscreen windows by mouse */
-		return;
-	restack(selmon);
-	ocx = c->x;
-	ocy = c->y;
-	if (XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
-		None, cursor[CurResize]->cursor, CurrentTime) != GrabSuccess)
-		return;
-	XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1, c->h + c->bw - 1);
-	do {
-		XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask, &ev);
-		switch(ev.type) {
-		case ConfigureRequest:
-		case Expose:
-		case MapRequest:
-			handler[ev.type](&ev);
-			break;
-		case MotionNotify:
-			if ((ev.xmotion.time - lasttime) <= (1000 / 60))
-				continue;
-			lasttime = ev.xmotion.time;
-
-			nw = MAX(ev.xmotion.x - ocx - 2 * c->bw + 1, 1);
-			nh = MAX(ev.xmotion.y - ocy - 2 * c->bw + 1, 1);
-			if (c->mon->wx + nw >= selmon->wx && c->mon->wx + nw <= selmon->wx + selmon->ww
-			&& c->mon->wy + nh >= selmon->wy && c->mon->wy + nh <= selmon->wy + selmon->wh)
-			{
-				if (!c->isfloating && selmon->lt[selmon->sellt]->arrange
-				&& (abs(nw - c->w) > snap || abs(nh - c->h) > snap))
-					togglefloating(NULL);
-			}
-			if (!selmon->lt[selmon->sellt]->arrange || c->isfloating)
-				resize(c, c->x, c->y, nw, nh, 1);
-			break;
-		}
-	} while (ev.type != ButtonRelease);
-	XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1, c->h + c->bw - 1);
-	XUngrabPointer(dpy, CurrentTime);
-	while (XCheckMaskEvent(dpy, EnterWindowMask, &ev));
-	if ((m = recttomon(c->x, c->y, c->w, c->h)) != selmon) {
-		sendmon(c, m);
-		selmon = m;
-		focus(NULL);
-	}
-}
-
-void
-restack(Monitor *m)
-{
-	Client *c;
-	XEvent ev;
-	XWindowChanges wc;
-
-	drawbar(m);
-	if (!m->sel)
-		return;
-	if (m->sel->isfloating || !m->lt[m->sellt]->arrange)
-		XRaiseWindow(dpy, m->sel->win);
-	if (m->lt[m->sellt]->arrange) {
-		wc.stack_mode = Below;
-		wc.sibling = m->barwin;
-		for (c = m->stack; c; c = c->snext)
-			if (!c->isfloating && ISVISIBLE(c)) {
-				XConfigureWindow(dpy, c->win, CWSibling|CWStackMode, &wc);
-				wc.sibling = c->win;
-			}
-	}
-	XSync(dpy, False);
-	while (XCheckMaskEvent(dpy, EnterWindowMask, &ev));
-}
-
-void
-run(void)
-{
-	XEvent ev;
-	/* main event loop */
-	XSync(dpy, False);
-	while (running && !XNextEvent(dpy, &ev))
-		if (handler[ev.type])
-			handler[ev.type](&ev); /* call handler */
-}
-
-void
-scan(void)
-{
-	unsigned int i, num;
-	Window d1, d2, *wins = NULL;
-	XWindowAttributes wa;
-
-	if (XQueryTree(dpy, root, &d1, &d2, &wins, &num)) {
-		for (i = 0; i < num; i++) {
-			if (!XGetWindowAttributes(dpy, wins[i], &wa)
-			|| wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1))
-				continue;
-			if (wa.map_state == IsViewable || getstate(wins[i]) == IconicState)
-				manage(wins[i], &wa);
-		}
-		for (i = 0; i < num; i++) { /* now the transients */
-			if (!XGetWindowAttributes(dpy, wins[i], &wa))
-				continue;
-			if (XGetTransientForHint(dpy, wins[i], &d1)
-			&& (wa.map_state == IsViewable || getstate(wins[i]) == IconicState))
-				manage(wins[i], &wa);
-		}
-		if (wins)
-			XFree(wins);
-	}
-}
-
-void
-sendmon(Client *c, Monitor *m)
-{
-	if (c->mon == m)
-		return;
-	unfocus(c, 1);
-	detach(c);
-	detachstack(c);
-	c->mon = m;
-	c->tags = m->tagset[m->seltags]; /* assign tags of target monitor */
-	attach(c);
-	attachstack(c);
-	focus(NULL);
-	arrange(NULL);
-}
-
-void
-setclientstate(Client *c, long state)
-{
-	long data[] = { state, None };
-
-	XChangeProperty(dpy, c->win, wmatom[WMState], wmatom[WMState], 32,
-		PropModeReplace, (unsigned char *)data, 2);
-}
-
-int
-sendevent(Window w, Atom proto, int mask, long d0, long d1, long d2, long d3, long d4)
-{
-	int n;
-	Atom *protocols, mt;
-	int exists = 0;
-	XEvent ev;
-
-	if (proto == wmatom[WMTakeFocus] || proto == wmatom[WMDelete]) {
-		mt = wmatom[WMProtocols];
-		if (XGetWMProtocols(dpy, w, &protocols, &n)) {
-			while (!exists && n--)
-				exists = protocols[n] == proto;
-			XFree(protocols);
-		}
-	}
-	else {
-		exists = True;
-		mt = proto;
-	}
-
-	if (exists) {
-		ev.type = ClientMessage;
-		ev.xclient.window = w;
-		ev.xclient.message_type = mt;
-		ev.xclient.format = 32;
-		ev.xclient.data.l[0] = d0;
-		ev.xclient.data.l[1] = d1;
-		ev.xclient.data.l[2] = d2;
-		ev.xclient.data.l[3] = d3;
-		ev.xclient.data.l[4] = d4;
-		XSendEvent(dpy, w, False, mask, &ev);
-	}
-	return exists;
-}
-
-void
-setfocus(Client *c)
-{
-	if (!c->neverfocus) {
-		XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime);
-		XChangeProperty(dpy, root, netatom[NetActiveWindow],
-			XA_WINDOW, 32, PropModeReplace,
-			(unsigned char *) &(c->win), 1);
-	}
-	sendevent(c->win, wmatom[WMTakeFocus], NoEventMask, wmatom[WMTakeFocus], CurrentTime, 0, 0, 0);
-}
-
-void
-setfullscreen(Client *c, int fullscreen)
-{
-	if (fullscreen && !c->isfullscreen) {
-		XChangeProperty(dpy, c->win, netatom[NetWMState], XA_ATOM, 32,
-			PropModeReplace, (unsigned char*)&netatom[NetWMFullscreen], 1);
-		c->isfullscreen = 1;
-		c->oldstate = c->isfloating;
-		c->oldbw = c->bw;
-		c->bw = 0;
-		c->isfloating = 1;
-		resizeclient(c, c->mon->mx, c->mon->my, c->mon->mw, c->mon->mh);
-		XRaiseWindow(dpy, c->win);
-	} else if (!fullscreen && c->isfullscreen){
-		XChangeProperty(dpy, c->win, netatom[NetWMState], XA_ATOM, 32,
-			PropModeReplace, (unsigned char*)0, 0);
-		c->isfullscreen = 0;
-		c->isfloating = c->oldstate;
-		c->bw = c->oldbw;
-		c->x = c->oldx;
-		c->y = c->oldy;
-		c->w = c->oldw;
-		c->h = c->oldh;
-		resizeclient(c, c->x, c->y, c->w, c->h);
-		arrange(c->mon);
-	}
-}
-
-void
-setlayout(const Arg *arg)
-{
-	if (!arg || !arg->v || arg->v != selmon->lt[selmon->sellt])
-		selmon->sellt ^= 1;
-	if (arg && arg->v)
-		selmon->lt[selmon->sellt] = (Layout *)arg->v;
-	strncpy(selmon->ltsymbol, selmon->lt[selmon->sellt]->symbol, sizeof selmon->ltsymbol);
-	if (selmon->sel)
-		arrange(selmon);
-	else
-		drawbar(selmon);
-}
-
-/* arg > 1.0 will set mfact absolutely */
-void
-setmfact(const Arg *arg)
-{
-	float f;
-
-	if (!arg || !selmon->lt[selmon->sellt]->arrange)
-		return;
-	f = arg->f < 1.0 ? arg->f + selmon->mfact : arg->f - 1.0;
-	if (f < 0.05 || f > 0.95)
-		return;
-	selmon->mfact = f;
-	arrange(selmon);
-}
-
-void
-setup(void)
-{
-	int i;
-	XSetWindowAttributes wa;
-	Atom utf8string;
-	struct sigaction sa;
-	pid_t pid;
-
-	/* do not transform children into zombies when they terminate */
-	sigemptyset(&sa.sa_mask);
-	sa.sa_flags = SA_NOCLDSTOP | SA_NOCLDWAIT | SA_RESTART;
-	sa.sa_handler = SIG_IGN;
-	sigaction(SIGCHLD, &sa, NULL);
-
-	/* clean up any zombies (inherited from .xinitrc etc) immediately */
-	while (0 < (pid = waitpid(-1, NULL, WNOHANG))) {
-		pid_t *p, *lim;
-
-		if (!(p = autostart_pids))
-			continue;
-		lim = &p[autostart_len];
-
-		for (; p < lim; p++) {
-			if (*p == pid) {
-				*p = -1;
-				break;
-			}
-		}
-
-	}
-
-	/* init screen */
-	screen = DefaultScreen(dpy);
-	sw = DisplayWidth(dpy, screen);
-	sh = DisplayHeight(dpy, screen);
-	root = RootWindow(dpy, screen);
-	drw = drw_create(dpy, screen, root, sw, sh);
-	if (!drw_fontset_create(drw, fonts, LENGTH(fonts)))
-		die("no fonts could be loaded.");
-	lrpad = drw->fonts->h;
-	bh = drw->fonts->h + 2;
-	updategeom();
-	sp = sidepad;
-	vp = (topbar == 1) ? vertpad : - vertpad;
-
-	/* init atoms */
-	utf8string = XInternAtom(dpy, "UTF8_STRING", False);
-	wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);
-	wmatom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
-	wmatom[WMState] = XInternAtom(dpy, "WM_STATE", False);
-	wmatom[WMTakeFocus] = XInternAtom(dpy, "WM_TAKE_FOCUS", False);
-	netatom[NetActiveWindow] = XInternAtom(dpy, "_NET_ACTIVE_WINDOW", False);
-	netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False);
-	netatom[NetSystemTray] = XInternAtom(dpy, "_NET_SYSTEM_TRAY_S0", False);
-	netatom[NetSystemTrayOP] = XInternAtom(dpy, "_NET_SYSTEM_TRAY_OPCODE", False);
-	netatom[NetSystemTrayOrientation] = XInternAtom(dpy, "_NET_SYSTEM_TRAY_ORIENTATION", False);
-	netatom[NetSystemTrayOrientationHorz] = XInternAtom(dpy, "_NET_SYSTEM_TRAY_ORIENTATION_HORZ", False);
-	netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False);
-	netatom[NetWMIcon] = XInternAtom(dpy, "_NET_WM_ICON", False);
-	netatom[NetWMState] = XInternAtom(dpy, "_NET_WM_STATE", False);
-	netatom[NetWMCheck] = XInternAtom(dpy, "_NET_SUPPORTING_WM_CHECK", False);
-	netatom[NetWMFullscreen] = XInternAtom(dpy, "_NET_WM_STATE_FULLSCREEN", False);
-	netatom[NetWMWindowType] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE", False);
-	netatom[NetWMWindowTypeDialog] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE_DIALOG", False);
-	netatom[NetClientList] = XInternAtom(dpy, "_NET_CLIENT_LIST", False);
-	xatom[Manager] = XInternAtom(dpy, "MANAGER", False);
-	xatom[Xembed] = XInternAtom(dpy, "_XEMBED", False);
-	xatom[XembedInfo] = XInternAtom(dpy, "_XEMBED_INFO", False);
-	/* init cursors */
-	cursor[CurNormal] = drw_cur_create(drw, XC_left_ptr);
-	cursor[CurResize] = drw_cur_create(drw, XC_sizing);
-	cursor[CurMove] = drw_cur_create(drw, XC_fleur);
-	/* init appearance */
-	scheme = ecalloc(LENGTH(colors), sizeof(Clr *));
-	for (i = 0; i < LENGTH(colors); i++)
-		scheme[i] = drw_scm_create(drw, colors[i], 3);
-	/* init system tray */
-	updatesystray();
-
-	/* init bars */
-	updatebars();
-	updatestatus();
-	updatebarpos(selmon);
-	/* supporting window for NetWMCheck */
-	wmcheckwin = XCreateSimpleWindow(dpy, root, 0, 0, 1, 1, 0, 0, 0);
-	XChangeProperty(dpy, wmcheckwin, netatom[NetWMCheck], XA_WINDOW, 32,
-		PropModeReplace, (unsigned char *) &wmcheckwin, 1);
-	XChangeProperty(dpy, wmcheckwin, netatom[NetWMName], utf8string, 8,
-		PropModeReplace, (unsigned char *) "dwm", 3);
-	XChangeProperty(dpy, root, netatom[NetWMCheck], XA_WINDOW, 32,
-		PropModeReplace, (unsigned char *) &wmcheckwin, 1);
-	/* EWMH support per view */
-	XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32,
-		PropModeReplace, (unsigned char *) netatom, NetLast);
-	XDeleteProperty(dpy, root, netatom[NetClientList]);
-	/* select events */
-	wa.cursor = cursor[CurNormal]->cursor;
-	wa.event_mask = SubstructureRedirectMask|SubstructureNotifyMask
-		|ButtonPressMask|PointerMotionMask|EnterWindowMask
-		|LeaveWindowMask|StructureNotifyMask|PropertyChangeMask;
-	XChangeWindowAttributes(dpy, root, CWEventMask|CWCursor, &wa);
-	XSelectInput(dpy, root, wa.event_mask);
-	grabkeys();
-	focus(NULL);
-}
-
-void
-seturgent(Client *c, int urg)
-{
-	XWMHints *wmh;
-
-	c->isurgent = urg;
-	if (!(wmh = XGetWMHints(dpy, c->win)))
-		return;
-	wmh->flags = urg ? (wmh->flags | XUrgencyHint) : (wmh->flags & ~XUrgencyHint);
-	XSetWMHints(dpy, c->win, wmh);
-	XFree(wmh);
-}
-
-void
-showhide(Client *c)
-{
-	if (!c)
-		return;
-	if (ISVISIBLE(c)) {
-		/* show clients top down */
-		XMoveWindow(dpy, c->win, c->x, c->y);
-		if ((!c->mon->lt[c->mon->sellt]->arrange || c->isfloating) && !c->isfullscreen)
-			resize(c, c->x, c->y, c->w, c->h, 0);
-		showhide(c->snext);
-	} else {
-		/* hide clients bottom up */
-		showhide(c->snext);
-		XMoveWindow(dpy, c->win, WIDTH(c) * -2, c->y);
-	}
-}
-
-void
-spawn(const Arg *arg)
-{
-	struct sigaction sa;
-
-	if (arg->v == dmenucmd)
-		dmenumon[0] = '0' + selmon->num;
-	selmon->tagset[selmon->seltags] &= ~scratchtag;
-	if (fork() == 0) {
-		if (dpy)
-			close(ConnectionNumber(dpy));
-		setsid();
-
-		sigemptyset(&sa.sa_mask);
-		sa.sa_flags = 0;
-		sa.sa_handler = SIG_DFL;
-		sigaction(SIGCHLD, &sa, NULL);
-
-		execvp(((char **)arg->v)[0], (char **)arg->v);
-		die("dwm: execvp '%s' failed:", ((char **)arg->v)[0]);
-	}
-}
-
-void
-tag(const Arg *arg)
-{
-	if (selmon->sel && arg->ui & TAGMASK) {
-		selmon->sel->tags = arg->ui & TAGMASK;
-		focus(NULL);
-		arrange(selmon);
-	}
-}
-
-void
-tagmon(const Arg *arg)
-{
-	if (!selmon->sel || !mons->next)
-		return;
-	sendmon(selmon->sel, dirtomon(arg->i));
-}
-
-void
-tile(Monitor *m)
-{
-	unsigned int i, n, h, mw, my, ty;
-	Client *c;
-
-	for (n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++);
-	if (n == 0)
-		return;
-
-	if (n > m->nmaster)
-		mw = m->nmaster ? m->ww * m->mfact : 0;
-	else
-		mw = m->ww;
-	for (i = my = ty = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++)
-		if (i < m->nmaster) {
-			h = (m->wh - my) / (MIN(n, m->nmaster) - i);
-			resize(c, m->wx, m->wy + my, mw - (2*c->bw) + (n > 1 ? gappx : 0), h - (2*c->bw), 0);
-			if (my + HEIGHT(c) < m->wh)
-				my += HEIGHT(c);
-		} else {
-			h = (m->wh - ty) / (n - i);
-			resize(c, m->wx + mw, m->wy + ty, m->ww - mw - (2*c->bw), h - (2*c->bw), 0);
-			if (ty + HEIGHT(c) < m->wh)
-				ty += HEIGHT(c);
-		}
-}
-
-void
-togglebar(const Arg *arg)
-{
-	selmon->showbar = !selmon->showbar;
-	updatebarpos(selmon);
-	//XMoveResizeWindow(dpy, selmon->barwin, selmon->wx + sp, selmon->by + vp, selmon->ww - 2 * sp, bh);
-	resizebarwin(selmon);
-	if (showsystray) {
-		XWindowChanges wc;
-		if (!selmon->showbar)
-			wc.y = -bh;
-		else if (selmon->showbar) {
-			wc.y = 0;
-			if (!selmon->topbar)
-				wc.y = selmon->mh - bh;
-		}
-		XConfigureWindow(dpy, systray->win, CWY, &wc);
-	}
-	arrange(selmon);
-}
-
-void
-togglefloating(const Arg *arg)
-{
-	if (!selmon->sel)
-		return;
-	if (selmon->sel->isfullscreen) /* no support for fullscreen windows */
-		return;
-	selmon->sel->isfloating = !selmon->sel->isfloating || selmon->sel->isfixed;
-	if (selmon->sel->isfloating)
-		resize(selmon->sel, selmon->sel->x, selmon->sel->y,
-			selmon->sel->w, selmon->sel->h, 0);
-	arrange(selmon);
-}
-
-void
-togglescratch(const Arg *arg)
-{
-	Client *c;
-	unsigned int found = 0;
-
-	for (c = selmon->clients; c && !(found = c->tags & scratchtag); c = c->next);
-	if (found) {
-		unsigned int newtagset = selmon->tagset[selmon->seltags] ^ scratchtag;
-		if (newtagset) {
-			selmon->tagset[selmon->seltags] = newtagset;
-			focus(NULL);
-			arrange(selmon);
-		}
-		if (ISVISIBLE(c)) {
-			focus(c);
-			restack(selmon);
-		}
-	} else
-		spawn(arg);
-}
-
-void
-toggletag(const Arg *arg)
-{
-	unsigned int newtags;
-
-	if (!selmon->sel)
-		return;
-	newtags = selmon->sel->tags ^ (arg->ui & TAGMASK);
-	if (newtags) {
-		selmon->sel->tags = newtags;
-		focus(NULL);
-		arrange(selmon);
-	}
-}
-
-void
-toggleview(const Arg *arg)
-{
-	unsigned int newtagset = selmon->tagset[selmon->seltags] ^ (arg->ui & TAGMASK);
-
-	if (newtagset) {
-		selmon->tagset[selmon->seltags] = newtagset;
-		focus(NULL);
-		arrange(selmon);
-	}
-}
-
-void
-freeicon(Client *c)
-{
-	if (c->icon) {
-		XRenderFreePicture(dpy, c->icon);
-		c->icon = None;
-	}
-}
-
-void
-unfocus(Client *c, int setfocus)
-{
-	if (!c)
-		return;
-	grabbuttons(c, 0);
-	XSetWindowBorder(dpy, c->win, scheme[SchemeNorm][ColBorder].pixel);
-	if (setfocus) {
-		XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
-		XDeleteProperty(dpy, root, netatom[NetActiveWindow]);
-	}
-}
-
-void
-unmanage(Client *c, int destroyed)
-{
-	Monitor *m = c->mon;
-	XWindowChanges wc;
-
-	detach(c);
-	detachstack(c);
-	freeicon(c);
-	if (!destroyed) {
-		wc.border_width = c->oldbw;
-		XGrabServer(dpy); /* avoid race conditions */
-		XSetErrorHandler(xerrordummy);
-		XSelectInput(dpy, c->win, NoEventMask);
-		XConfigureWindow(dpy, c->win, CWBorderWidth, &wc); /* restore border */
-		XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
-		setclientstate(c, WithdrawnState);
-		XSync(dpy, False);
-		XSetErrorHandler(xerror);
-		XUngrabServer(dpy);
-	}
-	free(c);
-	focus(NULL);
-	updateclientlist();
-	arrange(m);
-}
-
-void
-unmapnotify(XEvent *e)
-{
-	Client *c;
-	XUnmapEvent *ev = &e->xunmap;
-
-	if ((c = wintoclient(ev->window))) {
-		if (ev->send_event)
-			setclientstate(c, WithdrawnState);
-		else
-			unmanage(c, 0);
-	}
-	else if ((c = wintosystrayicon(ev->window))) {
-		/* KLUDGE! sometimes icons occasionally unmap their windows, but do
-		 * _not_ destroy them. We map those windows back */
-		XMapRaised(dpy, c->win);
-		updatesystray();
-	}
-}
-
-void
-updatebars(void)
-{
-	unsigned int w;
-	Monitor *m;
-	XSetWindowAttributes wa = {
-		.override_redirect = True,
-		.background_pixmap = ParentRelative,
-		.event_mask = ButtonPressMask|ExposureMask
-	};
-	XClassHint ch = {"dwm", "dwm"};
-	for (m = mons; m; m = m->next) {
-		if (m->barwin)
-			continue;
-		//m->barwin = XCreateWindow(dpy, root, m->wx + sp, m->by + vp, m->ww - 2 * sp, bh, 0, DefaultDepth(dpy, screen),
-		w = m->ww;
-		if (showsystray && m == systraytomon(m))
-			w -= getsystraywidth();
-		m->barwin = XCreateWindow(dpy, root, m->wx + sp, m ->by + vp, w - 2 * sp, bh, 0, DefaultDepth(dpy, screen),
-				CopyFromParent, DefaultVisual(dpy, screen),
-				CWOverrideRedirect|CWBackPixmap|CWEventMask, &wa);
-		XDefineCursor(dpy, m->barwin, cursor[CurNormal]->cursor);
-		if (showsystray && m == systraytomon(m))
-			XMapRaised(dpy, systray->win);
-		XMapRaised(dpy, m->barwin);
-		XSetClassHint(dpy, m->barwin, &ch);
-	}
-}
-
-void
-updatebarpos(Monitor *m)
-{
-	m->wy = m->my;
-	m->wh = m->mh;
-	if (m->showbar) {
-		m->wh = m->wh - vertpad - bh;
-		m->by = m->topbar ? m->wy : m->wy + m->wh + vertpad;
-		m->wy = m->topbar ? m->wy + bh + vp : m->wy;
-	} else
-		m->by = -bh - vp;
-}
-
-void
-updateclientlist(void)
-{
-	Client *c;
-	Monitor *m;
-
-	XDeleteProperty(dpy, root, netatom[NetClientList]);
-	for (m = mons; m; m = m->next)
-		for (c = m->clients; c; c = c->next)
-			XChangeProperty(dpy, root, netatom[NetClientList],
-				XA_WINDOW, 32, PropModeAppend,
-				(unsigned char *) &(c->win), 1);
-}
-
-int
-updategeom(void)
-{
-	int dirty = 0;
-
-#ifdef XINERAMA
-	if (XineramaIsActive(dpy)) {
-		int i, j, n, nn;
-		Client *c;
-		Monitor *m;
-		XineramaScreenInfo *info = XineramaQueryScreens(dpy, &nn);
-		XineramaScreenInfo *unique = NULL;
-
-		for (n = 0, m = mons; m; m = m->next, n++);
-		/* only consider unique geometries as separate screens */
-		unique = ecalloc(nn, sizeof(XineramaScreenInfo));
-		for (i = 0, j = 0; i < nn; i++)
-			if (isuniquegeom(unique, j, &info[i]))
-				memcpy(&unique[j++], &info[i], sizeof(XineramaScreenInfo));
-		XFree(info);
-		nn = j;
-
-		/* new monitors if nn > n */
-		for (i = n; i < nn; i++) {
-			for (m = mons; m && m->next; m = m->next);
-			if (m)
-				m->next = createmon();
-			else
-				mons = createmon();
-		}
-		for (i = 0, m = mons; i < nn && m; m = m->next, i++)
-			if (i >= n
-			|| unique[i].x_org != m->mx || unique[i].y_org != m->my
-			|| unique[i].width != m->mw || unique[i].height != m->mh)
-			{
-				dirty = 1;
-				m->num = i;
-				m->mx = m->wx = unique[i].x_org;
-				m->my = m->wy = unique[i].y_org;
-				m->mw = m->ww = unique[i].width;
-				m->mh = m->wh = unique[i].height;
-				updatebarpos(m);
-			}
-		/* removed monitors if n > nn */
-		for (i = nn; i < n; i++) {
-			for (m = mons; m && m->next; m = m->next);
-			while ((c = m->clients)) {
-				dirty = 1;
-				m->clients = c->next;
-				detachstack(c);
-				c->mon = mons;
-				attach(c);
-				attachstack(c);
-			}
-			if (m == selmon)
-				selmon = mons;
-			cleanupmon(m);
-		}
-		free(unique);
-	} else
-#endif /* XINERAMA */
-	{ /* default monitor setup */
-		if (!mons)
-			mons = createmon();
-		if (mons->mw != sw || mons->mh != sh) {
-			dirty = 1;
-			mons->mw = mons->ww = sw;
-			mons->mh = mons->wh = sh;
-			updatebarpos(mons);
-		}
-	}
-	if (dirty) {
-		selmon = mons;
-		selmon = wintomon(root);
-	}
-	return dirty;
-}
-
-void
-updatenumlockmask(void)
-{
-	unsigned int i, j;
-	XModifierKeymap *modmap;
-
-	numlockmask = 0;
-	modmap = XGetModifierMapping(dpy);
-	for (i = 0; i < 8; i++)
-		for (j = 0; j < modmap->max_keypermod; j++)
-			if (modmap->modifiermap[i * modmap->max_keypermod + j]
-				== XKeysymToKeycode(dpy, XK_Num_Lock))
-				numlockmask = (1 << i);
-	XFreeModifiermap(modmap);
-}
-
-void
-updatesizehints(Client *c)
-{
-	long msize;
-	XSizeHints size;
-
-	if (!XGetWMNormalHints(dpy, c->win, &size, &msize))
-		/* size is uninitialized, ensure that size.flags aren't used */
-		size.flags = PSize;
-	if (size.flags & PBaseSize) {
-		c->basew = size.base_width;
-		c->baseh = size.base_height;
-	} else if (size.flags & PMinSize) {
-		c->basew = size.min_width;
-		c->baseh = size.min_height;
-	} else
-		c->basew = c->baseh = 0;
-	if (size.flags & PResizeInc) {
-		c->incw = size.width_inc;
-		c->inch = size.height_inc;
-	} else
-		c->incw = c->inch = 0;
-	if (size.flags & PMaxSize) {
-		c->maxw = size.max_width;
-		c->maxh = size.max_height;
-	} else
-		c->maxw = c->maxh = 0;
-	if (size.flags & PMinSize) {
-		c->minw = size.min_width;
-		c->minh = size.min_height;
-	} else if (size.flags & PBaseSize) {
-		c->minw = size.base_width;
-		c->minh = size.base_height;
-	} else
-		c->minw = c->minh = 0;
-	if (size.flags & PAspect) {
-		c->mina = (float)size.min_aspect.y / size.min_aspect.x;
-		c->maxa = (float)size.max_aspect.x / size.max_aspect.y;
-	} else
-		c->maxa = c->mina = 0.0;
-	c->isfixed = (c->maxw && c->maxh && c->maxw == c->minw && c->maxh == c->minh);
-	c->hintsvalid = 1;
-}
-
-void
-updatestatus(void)
-{
-	if (!gettextprop(root, XA_WM_NAME, stext, sizeof(stext)))
-		strcpy(stext, "dwm-"VERSION);
-	drawbar(selmon);
-	updatesystray();
-}
-
-
-void
-updatesystrayicongeom(Client *i, int w, int h)
-{
-	if (i) {
-		i->h = bh;
-		if (w == h)
-			i->w = bh;
-		else if (h == bh)
-			i->w = w;
-		else
-			i->w = (int) ((float)bh * ((float)w / (float)h));
-		applysizehints(i, &(i->x), &(i->y), &(i->w), &(i->h), False);
-		/* force icons into the systray dimensions if they don't want to */
-		if (i->h > bh) {
-			if (i->w == i->h)
-				i->w = bh;
-			else
-				i->w = (int) ((float)bh * ((float)i->w / (float)i->h));
-			i->h = bh;
-		}
-	}
-}
-
-void
-updatesystrayiconstate(Client *i, XPropertyEvent *ev)
-{
-	long flags;
-	int code = 0;
-
-	if (!showsystray || !i || ev->atom != xatom[XembedInfo] ||
-			!(flags = getatomprop(i, xatom[XembedInfo])))
-		return;
-
-	if (flags & XEMBED_MAPPED && !i->tags) {
-		i->tags = 1;
-		code = XEMBED_WINDOW_ACTIVATE;
-		XMapRaised(dpy, i->win);
-		setclientstate(i, NormalState);
-	}
-	else if (!(flags & XEMBED_MAPPED) && i->tags) {
-		i->tags = 0;
-		code = XEMBED_WINDOW_DEACTIVATE;
-		XUnmapWindow(dpy, i->win);
-		setclientstate(i, WithdrawnState);
-	}
-	else
-		return;
-	sendevent(i->win, xatom[Xembed], StructureNotifyMask, CurrentTime, code, 0,
-			systray->win, XEMBED_EMBEDDED_VERSION);
-}
-
-void
-updatesystray(void)
-{
-	XSetWindowAttributes wa;
-	XWindowChanges wc;
-	Client *i;
-	Monitor *m = systraytomon(NULL);
-	unsigned int x = m->mx + m->mw - vp;
-	unsigned int y = m->by + sp;
-	unsigned int sw = TEXTW(stext) - lrpad + systrayspacing;
-	unsigned int w = 1;
-
-	if (!showsystray)
-		return;
-	if (systrayonleft)
-		x -= sw + lrpad / 2;
-	if (!systray) {
-		/* init systray */
-		if (!(systray = (Systray *)calloc(1, sizeof(Systray))))
-			die("fatal: could not malloc() %u bytes\n", sizeof(Systray));
-		systray->win = XCreateSimpleWindow(dpy, root, x, y, w, bh, 0, 0, scheme[SchemeSel][ColBg].pixel);
-		wa.event_mask        = ButtonPressMask | ExposureMask;
-		wa.override_redirect = True;
-		wa.background_pixel  = scheme[SchemeNorm][ColBg].pixel;
-		XSelectInput(dpy, systray->win, SubstructureNotifyMask);
-		XChangeProperty(dpy, systray->win, netatom[NetSystemTrayOrientation], XA_CARDINAL, 32,
-				PropModeReplace, (unsigned char *)&netatom[NetSystemTrayOrientationHorz], 1);
-		XChangeWindowAttributes(dpy, systray->win, CWEventMask|CWOverrideRedirect|CWBackPixel, &wa);
-		XMapRaised(dpy, systray->win);
-		XSetSelectionOwner(dpy, netatom[NetSystemTray], systray->win, CurrentTime);
-		if (XGetSelectionOwner(dpy, netatom[NetSystemTray]) == systray->win) {
-			sendevent(root, xatom[Manager], StructureNotifyMask, CurrentTime, netatom[NetSystemTray], systray->win, 0, 0);
-			XSync(dpy, False);
-		}
-		else {
-			fprintf(stderr, "dwm: unable to obtain system tray.\n");
-			free(systray);
-			systray = NULL;
-			return;
-		}
-	}
-	for (w = 0, i = systray->icons; i; i = i->next) {
-		/* make sure the background color stays the same */
-		wa.background_pixel  = scheme[SchemeNorm][ColBg].pixel;
-		XChangeWindowAttributes(dpy, i->win, CWBackPixel, &wa);
-		XMapRaised(dpy, i->win);
-		w += systrayspacing;
-		i->x = w;
-		XMoveResizeWindow(dpy, i->win, i->x, y - sp, i->w, i->h);
-		w += i->w;
-		if (i->mon != m)
-			i->mon = m;
-	}
-	w = w ? w + systrayspacing : 1;
-	x -= w;
-	XMoveResizeWindow(dpy, systray->win, x, y, w, bh);
-	wc.x = x; wc.y = y; wc.width = w; wc.height = bh;
-	wc.stack_mode = Above; wc.sibling = m->barwin;
-	XConfigureWindow(dpy, systray->win, CWX|CWY|CWWidth|CWHeight|CWSibling|CWStackMode, &wc);
-	XMapWindow(dpy, systray->win);
-	XMapSubwindows(dpy, systray->win);
-	/* redraw background */
-	XSetForeground(dpy, drw->gc, scheme[SchemeNorm][ColBg].pixel);
-	XFillRectangle(dpy, systray->win, drw->gc, 0, 0, w, bh);
-	XSync(dpy, False);
-}
-
-void
-updatetitle(Client *c)
-{
-	if (!gettextprop(c->win, netatom[NetWMName], c->name, sizeof c->name))
-		gettextprop(c->win, XA_WM_NAME, c->name, sizeof c->name);
-	if (c->name[0] == '\0') /* hack to mark broken clients */
-		strcpy(c->name, broken);
-}
-
-void
-updateicon(Client *c)
-{
-	freeicon(c);
-	c->icon = geticonprop(c->win, &c->icw, &c->ich);
-}
-
-void
-updatewindowtype(Client *c)
-{
-	Atom state = getatomprop(c, netatom[NetWMState]);
-	Atom wtype = getatomprop(c, netatom[NetWMWindowType]);
-
-	if (state == netatom[NetWMFullscreen])
-		setfullscreen(c, 1);
-	if (wtype == netatom[NetWMWindowTypeDialog])
-		c->isfloating = 1;
-}
-
-void
-updatewmhints(Client *c)
-{
-	XWMHints *wmh;
-
-	if ((wmh = XGetWMHints(dpy, c->win))) {
-		if (c == selmon->sel && wmh->flags & XUrgencyHint) {
-			wmh->flags &= ~XUrgencyHint;
-			XSetWMHints(dpy, c->win, wmh);
-		} else
-			c->isurgent = (wmh->flags & XUrgencyHint) ? 1 : 0;
-		if (wmh->flags & InputHint)
-			c->neverfocus = !wmh->input;
-		else
-			c->neverfocus = 0;
-		XFree(wmh);
-	}
-}
-
-void
-view(const Arg *arg)
-{
-	if ((arg->ui & TAGMASK) == selmon->tagset[selmon->seltags])
-		return;
-	selmon->seltags ^= 1; /* toggle sel tagset */
-	if (arg->ui & TAGMASK)
-		selmon->tagset[selmon->seltags] = arg->ui & TAGMASK;
-	focus(NULL);
-	arrange(selmon);
-}
-
-Client *
-wintoclient(Window w)
-{
-	Client *c;
-	Monitor *m;
-
-	for (m = mons; m; m = m->next)
-		for (c = m->clients; c; c = c->next)
-			if (c->win == w)
-				return c;
-	return NULL;
-}
-
-Client *
-wintosystrayicon(Window w) {
-	Client *i = NULL;
-
-	if (!showsystray || !w)
-		return i;
-	for (i = systray->icons; i && i->win != w; i = i->next) ;
-	return i;
-}
-
-Monitor *
-wintomon(Window w)
-{
-	int x, y;
-	Client *c;
-	Monitor *m;
-
-	if (w == root && getrootptr(&x, &y))
-		return recttomon(x, y, 1, 1);
-	for (m = mons; m; m = m->next)
-		if (w == m->barwin)
-			return m;
-	if ((c = wintoclient(w)))
-		return c->mon;
-	return selmon;
-}
-
-/* There's no way to check accesses to destroyed windows, thus those cases are
- * ignored (especially on UnmapNotify's). Other types of errors call Xlibs
- * default error handler, which may call exit. */
-int
-xerror(Display *dpy, XErrorEvent *ee)
-{
-	if (ee->error_code == BadWindow
-	|| (ee->request_code == X_SetInputFocus && ee->error_code == BadMatch)
-	|| (ee->request_code == X_PolyText8 && ee->error_code == BadDrawable)
-	|| (ee->request_code == X_PolyFillRectangle && ee->error_code == BadDrawable)
-	|| (ee->request_code == X_PolySegment && ee->error_code == BadDrawable)
-	|| (ee->request_code == X_ConfigureWindow && ee->error_code == BadMatch)
-	|| (ee->request_code == X_GrabButton && ee->error_code == BadAccess)
-	|| (ee->request_code == X_GrabKey && ee->error_code == BadAccess)
-	|| (ee->request_code == X_CopyArea && ee->error_code == BadDrawable))
-		return 0;
-	fprintf(stderr, "dwm: fatal error: request code=%d, error code=%d\n",
-		ee->request_code, ee->error_code);
-	return xerrorxlib(dpy, ee); /* may call exit */
-}
-
-int
-xerrordummy(Display *dpy, XErrorEvent *ee)
-{
-	return 0;
-}
-
-/* Startup Error handler to check if another window manager
- * is already running. */
-int
-xerrorstart(Display *dpy, XErrorEvent *ee)
-{
-	die("dwm: another window manager is already running");
-	return -1;
-}
-
-Monitor *
-systraytomon(Monitor *m) {
-	Monitor *t;
-	int i, n;
-	if(!systraypinning) {
-		if(!m)
-			return selmon;
-		return m == selmon ? m : NULL;
-	}
-	for(n = 1, t = mons; t && t->next; n++, t = t->next) ;
-	for(i = 1, t = mons; t && t->next && i < systraypinning; i++, t = t->next) ;
-	if(systraypinningfailfirst && n < systraypinning)
-		return mons;
-	return t;
-}
-
-void
-xrdb(const Arg *arg)
-{
-  loadxrdb();
-  int i;
-  for (i = 0; i < LENGTH(colors); i++)
-                scheme[i] = drw_scm_create(drw, colors[i], 3);
-  focus(NULL);
-  arrange(NULL);
-}
-
-void
-zoom(const Arg *arg)
-{
-	Client *c = selmon->sel;
-
-	if (!selmon->lt[selmon->sellt]->arrange || !c || c->isfloating)
-		return;
-	if (c == nexttiled(selmon->clients) && !(c = nexttiled(c->next)))
-		return;
-	pop(c);
-}
-
-int
-main(int argc, char *argv[])
-{
-	if (argc == 2 && !strcmp("-v", argv[1]))
-		die("dwm-"VERSION);
-	else if (argc != 1)
-		die("usage: dwm [-v]");
-	if (!setlocale(LC_CTYPE, "") || !XSupportsLocale())
-		fputs("warning: no locale support\n", stderr);
-	if (!(dpy = XOpenDisplay(NULL)))
-		die("dwm: cannot open display");
-	checkotherwm();
-	autostart_exec();
-        XrmInitialize();
-        loadxrdb();
-	setup();
-#ifdef __OpenBSD__
-	if (pledge("stdio rpath proc exec", NULL) == -1)
-		die("pledge");
-#endif /* __OpenBSD__ */
-	scan();
-	run();
-	cleanup();
-	XCloseDisplay(dpy);
-	return EXIT_SUCCESS;
-}
-
diff --git a/dwm.png b/dwm.png
Binary files differ.

	birdwm birdwm - mrgrouse's daily driver fork of suckless' dwm. Contains many patches and is currently loosely maintained.
	Log \| Files \| Refs \| README \| LICENSE

M	Makefile	\|	32	+++++++++++++++-----------------
M	README	\|	85	++++++++++++++++++++++++++++++++++---------------------------------------------
A	birdwm.1	\|	209	+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
A	birdwm.c	\|	2804	+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
M	config.mk	\|	2	+-
D	dwm.1	\|	176	-------------------------------------------------------------------------------
D	dwm.c	\|	2804	-------------------------------------------------------------------------------
D	dwm.png	\|	0