DWM Hackers Unite! Share (or request) dwm patches.

steve___ · 2011-03-16 12:51:23

JokerBoy wrote:

dipilibupap this is not the place where you can ask that, but here's what i use:

I vote the many ways to start dwm and use its status bar pertain to this thread.

Minor cleanup to your scripts:

dwm-start

#!/bin/sh
while :; do
    statusbar > /dev/null 2>&1
    dwm > /dev/null 2>&1
    sleep 2
done

statusbar

#!/bin/sh
killall conky dzen2 > /dev/null 2>&1
sleep 1
{ conky | dzen2 -p -e '' -ta r -x '830' -w '850' -h '12' -bg '#1a1918' -fg '#E0E0E0' -fn '-windows-montecarlo-medium-r-normal-*-11-110-72-72-c-60-microsoft-cp1252'; } > /dev/null 2>&1 &

dipilibupap · 2011-03-17 17:44:34

Thanks alot for you answers guys! i will try it out now!

tvale · 2011-03-22 22:26:40

tvale wrote:

Only thing I can't seem to get working is your opacify patch. rxvt-unicode works as expected, but firefox and the likes are just... Invisible. I suppose it works for you, so I may be missing something or applied it wrongly. I'll check in a moment.

Seriously, I forgot to add the opacity field to the rules in config.h... Strangely enough, urxvt worked nonetheless...!

karol · 2011-03-22 22:33:12

IIRC urxvt has its own pseudo-transparency.

the sad clown · 2011-04-01 17:31:51

I'm not sure if this is the right thread or not for this. I tried to apply the pango patch to dwm, but it seems to have shrunk my status bar to one pixal. What do I need to edit to correct this?

the sad clown · 2011-04-02 04:50:11

Nevermind, I was stupid and failed to address the pango error with my fonts.

neurolysis · 2011-04-10 11:13:59

A quick patch that LokiChaos whipped up when I asked about being able to have different return codes for restart or exit:

dwmreturn

Firstly add the exit code (1/0) you want to send for each key combination in config.h:

[...]
    /* dwmreturn patch means we can use these */
    { MODKEY|ShiftMask,             XK_r,      quit,           {.i = 0 } },
    { MODKEY|ShiftMask,             XK_q,      quit,           {.i = 1 } },
[...]

Now make a wrapper for dwm, for example:

.xinitrc

exec ~/bin/dwm-start.sh

~/bin/dwm-start.sh

while :; do 
    dwm > /dev/null 2>&1 || break
done

If dwm returns 0, it restarts the loop (quits and then starts dwm again). If dwm returns 1, it breaks the loop, and X terminates.

Last edited by neurolysis (2011-04-21 22:05:09)

c00kiemon5ter · 2011-04-10 11:31:44

that's nice

freak · 2011-04-15 04:42:02

Has anyone found a patch to be able to use the numpad? It would be nice to be able to use it to switch tags.

kcirick · 2011-04-15 14:41:42

freak wrote:

Has anyone found a patch to be able to use the numpad? It would be nice to be able to use it to switch tags.

Have you tried using xev to find the matching keycode?

Then it's just matter of putting that in config.h...

the sad clown · 2011-04-15 19:25:07

That's true, the numpad keys will be different.

Revelation60 · 2011-04-16 16:36:14

You can find all defined keys in keysymdef.h. Here is an online version.

JokerBoy · 2011-04-18 08:26:57

simongmzlj wrote:

jasonwryan wrote:

Thanks Simon. I had seen your patch, but I don't require nmaster functionality, so wasn't keen to use the whole patch and -as with portix's patch- wasn't able to successfully disentangle only the pertag chunks from it...

Patch it against vanilla dwm.c, restore ntile to tile, remove nmasters/nmaster, make new patch.

--- a/dwm..c    2010-03-30 19:53:14.530198754 -0400
+++ b/dwm.c    2010-03-30 19:54:18.110207383 -0400
@@ -122,7 +122,6 @@
 
 struct Monitor {
     char ltsymbol[16];
-    float mfact;
     int num;
     int by;               /* bar geometry */
     int mx, my, mw, mh;   /* screen size */
@@ -138,9 +137,19 @@
     Monitor *next;
     Window barwin;
     const Layout *lt[2];
+    int curtag;
+    int prevtag;
+    const Layout **lts;
+    double *mfacts;
 };
 
 typedef struct {
+    const char *name;
+    const Layout *layout;
+    float mfact;
+} Tag;
+
+typedef struct {
     const char *class;
     const char *instance;
     const char *title;
@@ -430,7 +439,7 @@
     if(ev->window == selmon->barwin) {
         i = x = 0;
         do {
-            x += TEXTW(tags[i]);
+            x += TEXTW(tags[i].name);
         } while(ev->x >= x && ++i < LENGTH(tags));
         if(i < LENGTH(tags)) {
             click = ClkTagBar;
@@ -505,6 +514,8 @@
     }
     XUnmapWindow(dpy, mon->barwin);
     XDestroyWindow(dpy, mon->barwin);
+    free(mon->mfacts);
+    free(mon->lts);
     free(mon);
 }
 
@@ -603,19 +614,29 @@
     XSync(dpy, False);
 }
 
+/* TODO Check how many times createmon is called */
 Monitor *
 createmon(void) {
     Monitor *m;
+    int i, numtags = LENGTH(tags) + 1;
 
     if(!(m = (Monitor *)calloc(1, sizeof(Monitor))))
         die("fatal: could not malloc() %u bytes\n", sizeof(Monitor));
+    if(!(m->mfacts = calloc(sizeof(double), numtags)))
+        die("fatal: could not malloc() %u bytes\n", sizeof(double) * numtags);
+    if(!(m->lts = calloc(sizeof(Layout *), numtags)))
+        die("fatal: could not malloc() %u bytes\n", sizeof(Layout *) * numtags);
     m->tagset[0] = m->tagset[1] = 1;
-    m->mfact = mfact;
     m->showbar = showbar;
     m->topbar = topbar;
-    m->lt[0] = &layouts[0];
+    m->curtag = m->prevtag = 1;
+    for(i = 1; i < numtags; i++) {
+        m->mfacts[i] = tags[i - 1].mfact < 0 ? mfact : tags[i - 1].mfact;
+        m->lts[i] = tags[i - 1].layout;
+    }
+    m->lt[0] = m->lts[m->curtag];
     m->lt[1] = &layouts[1 % LENGTH(layouts)];
-    strncpy(m->ltsymbol, layouts[0].symbol, sizeof m->ltsymbol);
+    strncpy(m->ltsymbol, m->lt[0]->symbol, sizeof m->ltsymbol);
     return m;
 }
 
@@ -690,9 +711,9 @@
     }
     dc.x = 0;
     for(i = 0; i < LENGTH(tags); i++) {
-        dc.w = TEXTW(tags[i]);
+        dc.w = TEXTW(tags[i].name);
         col = m->tagset[m->seltags] & 1 << i ? dc.sel : dc.norm;
-        drawtext(tags[i], col, urg & 1 << i);
+        drawtext(tags[i].name, col, urg & 1 << i);
         drawsquare(m == selmon && selmon->sel && selmon->sel->tags & 1 << i,
                    occ & 1 << i, urg & 1 << i, col);
         dc.x += dc.w;
@@ -1450,7 +1471,7 @@
     if(!arg || !arg->v || arg->v != selmon->lt[selmon->sellt])
         selmon->sellt ^= 1;
     if(arg && arg->v)
-        selmon->lt[selmon->sellt] = (Layout *)arg->v;
+        selmon->lt[selmon->sellt] = selmon->lts[selmon->curtag] = (Layout *)arg->v;
     strncpy(selmon->ltsymbol, selmon->lt[selmon->sellt]->symbol, sizeof selmon->ltsymbol);
     if(selmon->sel)
         arrange(selmon);
@@ -1465,10 +1486,10 @@
 
     if(!arg || !selmon->lt[selmon->sellt]->arrange)
         return;
-    f = arg->f < 1.0 ? arg->f + selmon->mfact : arg->f - 1.0;
+    f = arg->f < 1.0 ? arg->f + selmon->mfacts[selmon->curtag] : arg->f - 1.0;
     if(f < 0.1 || f > 0.9)
         return;
-    selmon->mfact = f;
+    selmon->mfacts[selmon->curtag] = f;
     arrange(selmon);
 }
 
@@ -1640,12 +1661,24 @@
 void
 toggletag(const Arg *arg) {
     unsigned int newtags;
+    unsigned int i;
 
     if(!selmon->sel)
         return;
     newtags = selmon->sel->tags ^ (arg->ui & TAGMASK);
     if(newtags) {
         selmon->sel->tags = newtags;
+        if(newtags == ~0) {
+            selmon->prevtag = selmon->curtag;
+            selmon->curtag = 0;
+        }
+        if(!(newtags & 1 << (selmon->curtag - 1))) {
+            selmon->prevtag = selmon->curtag;
+            for (i=0; !(newtags & 1 << i); i++);
+            selmon->curtag = i + 1;
+        }
+        selmon->sel->tags = newtags;
+        selmon->lt[selmon->sellt] = selmon->lts[selmon->curtag];
         arrange(selmon);
     }
 }
@@ -1912,11 +1945,26 @@
 
 void
 view(const Arg *arg) {
+    unsigned int i;
+
     if((arg->ui & TAGMASK) == selmon->tagset[selmon->seltags])
         return;
     selmon->seltags ^= 1; /* toggle sel tagset */
-    if(arg->ui & TAGMASK)
+    if(arg->ui & TAGMASK) {
         selmon->tagset[selmon->seltags] = arg->ui & TAGMASK;
+        selmon->prevtag = selmon->curtag;
+        if(arg->ui == ~0)
+            selmon->curtag = 0;
+        else {
+            for (i=0; !(arg->ui & 1 << i); i++);
+            selmon->curtag = i + 1;
+        }
+    } else {
+        selmon->prevtag= selmon->curtag ^ selmon->prevtag;
+        selmon->curtag^= selmon->prevtag;
+        selmon->prevtag= selmon->curtag ^ selmon->prevtag;
+    }
+    selmon->lt[selmon->sellt] = selmon->lts[selmon->curtag];
     arrange(selmon);
 }

plus

@@ -1651,7 +1671,7 @@ tile(Monitor *m) {
         return;
     /* master */
     c = nexttiled(m->clients);
-    mw = m->mfact * m->ww;
+    mw = selmon->mfacts[selmon->curtag] * m->ww;
     resize(c, m->wx, m->wy, (n == 1 ? m->ww : mw) - 2 * c->bw, m->wh - 2 * c->bw, False);
     if(--n == 0)
         return;

I'm getting segfaults every time I stop-start dwm (in a loop). does anyone know a fix for this?

Core was generated by `dwm'.
Program terminated with signal 11, Segmentation fault.
#0  0x00000000004046b8 in showhide (c=<value optimized out>) at dwm.c:1655
1655            if((!c->mon->lt[c->mon->sellt]->arrange || c->isfloating) && !c->isfullscreen)

Apr 18 03:16:00 localhost kernel: dwm[18428]: segfault at 8 ip 0000000000403ebe sp 00007fff61c4c2b0 error 4 in dwm (deleted)[400000+9000]
Apr 18 03:18:03 localhost kernel: dwm[20674]: segfault at 10 ip 00000000004046b8 sp 00007ffff23624a0 error 4 in dwm (deleted)[400000+b000]
Apr 18 03:19:54 localhost kernel: dwm[22884]: segfault at 10 ip 00000000004046b8 sp 00007fffeb0f48b0 error 4 in dwm (deleted)[400000+b000]
Apr 18 03:20:15 localhost kernel: dwm[23359]: segfault at 10 ip 00000000004046b8 sp 00007fff30bb7a90 error 4 in dwm (deleted)[400000+b000]
Apr 18 03:21:33 localhost kernel: dwm[23831]: segfault at 10 ip 00000000004046b8 sp 00007fff823975b0 error 4 in dwm (deleted)[400000+b000]
Apr 18 03:23:17 localhost kernel: dwm[24304]: segfault at 10 ip 0000000000404698 sp 00007fff101111b0 error 4 in dwm (deleted)[400000+b000]
Apr 18 03:27:48 localhost kernel: dwm[2783]: segfault at 10 ip 00000000004046b8 sp 00007fff312eda80 error 4 in dwm (deleted)[400000+b000]

djpohly · 2011-04-18 20:53:29

I've uploaded a few patches I've made as a patchqueue on Bitbucket:
https://bitbucket.org/djpohly/dwm-patches/

The interesting ones are:

external-bar: removes bar, writes formatted info to stdout instead, enabling you to pipe `dwm | dzen2' directly
restart: provides a command for re-exec'ing dwm (though I like the LokiChaos/neurolysis approach above too)
abs-monitor-num: changes the monitor-switching semantics from "go left/right" to "go to monitor #X"

The rest of the queue is just vanilla patches from suckless.org and config changes.

I'd like to submit these three to arg for consideration, but I figured I'd get some feedback here first. Like/dislike/thoughts?

OK100 · 2011-04-21 18:59:15

Does anybody know how to display xbm layout icons? I found this patch:
http://www.mail-archive.com/dwm@suckles … 05776.html
but I dont't know how to use it wit dwm 5.8.2

Edit: I already sorted it out - see my post below

Last edited by OK100 (2011-05-17 15:50:05)

monotiz · 2011-04-26 12:43:38

Hi,
I tried to use moveresie patch but it doesn't work in my configuration. I'm using pango, flextile and statuscolor patch.

I put this in config.h:

#include "moveresize.c"
...

    { MODKEY|ControlMask,            XK_Down,                  moveresize,     {.v = (int []){ 0, 25, 0, 0 }}},
    { MODKEY|ControlMask,            XK_Up,                    moveresize,     {.v = (int []){ 0, -25, 0, 0 }}},
    { MODKEY|ControlMask,            XK_Right,                 moveresize,     {.v = (int []){ 25, 0, 0, 0 }}},
    { MODKEY|ControlMask,            XK_Left,                  moveresize,     {.v = (int []){ -25, 0, 0, 0 }}},
    { MODKEY|ControlMask|ShiftMask,  XK_Down,                  moveresize,     {.v = (int []){ 0, 0, 0, 25 }}},
    { MODKEY|ControlMask|ShiftMask,  XK_Up,                    moveresize,     {.v = (int []){ 0, 0, 0, -25 }}},
    { MODKEY|ControlMask|ShiftMask,  XK_Right,                 moveresize,     {.v = (int []){ 0, 0, 25, 0 }}},
    { MODKEY|ControlMask|ShiftMask,  XK_Left,                  moveresize,     {.v = (int []){ 0, 0, -25, 0 }}},

and this is the moveresize.c:

static void moveresize(const Arg *arg) {
XEvent ev;
Monitor *m = selmon;

if(!(m->sel && arg && arg->v && m->sel->isfloating))
    return;

resize(m->sel, m->sel->x + ((int *)arg->v)[0],
    m->sel->y + ((int *)arg->v)[1],
    m->sel->w + ((int *)arg->v)[2],
    m->sel->h + ((int *)arg->v)[3],
    True);

while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));

}

I successfully compile the code but I can't resize the floating windows.

Someone can help me? Thanks.

bohoomil · 2011-04-26 15:01:13

Toggle it floating with Shift + Modkey + Space (or whatever key combination you have assigned) first.

monotiz · 2011-04-26 15:13:03

bohoomil wrote:

Toggle it floating with Shift + Modkey + Space (or whatever key combination you have assigned) first.

Thank you! It's work!

Meyithi · 2011-04-29 19:53:06

I'm starting to use dwm more and more with the statusbar hidden, however I occasionally have to toggle it on for tag to tag stuff, to see where I am etc. What would be perfect is if that whenever I press the mod key, the bar appears and then disappears upon mod key release, this way I'll only see the bar on client manipulation when it's info is the most useful.

Is this possible? If not anybody know a dwm like wm where it may be possible?

nixfag · 2011-04-30 09:48:17

I've finally got trayer to work on my dzen bar,and I've also added something like margins in openbox so dzen and trayer don't get covered by other windows,i've also made use of those internet keys , so I can mute volume,decrease/increase volume,play/pause and prev/next track.You need to add '#include <X11/XF86keysym.h> and the beggining of dwm.c to make them work.Here is the keys part:

        { 0,                            XF86XK_HomePage,          spawn,     SHCMD("chromium") },
        { 0,                            XF86XK_AudioPlay,            spawn,     SHCMD("mpc toggle") },
        { 0,                            XF86XK_AudioPrev,           spawn,     SHCMD("mpc prev") },
        { 0,                            XF86XK_AudioNext,           spawn,     SHCMD("mpc next") },
        { 0,                            XF86XK_AudioStop,           spawn,     SHCMD("mpc stop") },
        { 0,                            XF86XK_AudioLowerVolume,  spawn,     SHCMD("amixer -c 1 set PCM 1dB-") },
        { 0,                            XF86XK_AudioRaiseVolume,  spawn,     SHCMD("amixer -c 1 set PCM 1dB+") },
        { 0,                            XF86XK_AudioMute,         spawn,     SHCMD("amixer -c 1 set PCM toggle") },
        { 0,                            XF86XK_Sleep,             spawn,     SHCMD("xscreensaver-command --lock") },

I've based my configs heavily on jasonwryan's,hope he doesn't mind.Here is a screenshot: http://ompldr.org/vOGhqZA

thayer · 2011-05-13 14:52:36

Has anyone modified kcirick's systray patch to work with the latest hg tip? A few functions have changed since 5.8.2 and I can't sort it out; it looks like the revised clientmessage() function is to blame, but hand-patching has failed as well.

OK100 · 2011-05-17 16:00:02

I modified this patch http://www.mail-archive.com/dwm@suckles … 05786.html to work with dwm 5.8.2. Advantage of this patch is that it doesn't require modifying dwm font, and works with xft fonts too, because it only display xbm icon.
Screenshot:

Patch is on my github.

el mariachi · 2011-05-17 18:37:06

dwm.c:747:5: error: ‘useicons’ undeclared (first use in this function)

/* 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 <stdarg.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <X11/cursorfont.h>
#include <X11/keysym.h>
#include <X11/Xatom.h>
#include <X11/Xlib.h>
#include <X11/Xproto.h>
#include <X11/Xutil.h>
#include <X11/Xft/Xft.h>
#include <pango/pango.h>
#include <pango/pangoxft.h>
#include <pango/pango-font.h>
#ifdef XINERAMA
#include <X11/extensions/Xinerama.h>
#endif /* XINERAMA */

/* macros */
#define BUTTONMASK              (ButtonPressMask|ButtonReleaseMask)
#define CLEANMASK(mask)         (mask & ~(numlockmask|LockMask))
#define INRECT(X,Y,RX,RY,RW,RH) ((X) >= (RX) && (X) < (RX) + (RW) && (Y) >= (RY) && (Y) < (RY) + (RH))
#define ISVISIBLE(C)            ((C->tags & C->mon->tagset[C->mon->seltags]))
#define LENGTH(X)               (sizeof X / sizeof X[0])
#ifndef MAX
#define MAX(A, B)               ((A) > (B) ? (A) : (B))
#endif
#ifndef MIN
#define MIN(A, B)               ((A) < (B) ? (A) : (B))
#endif
#define MAXCOLORS               8
#define MOUSEMASK               (BUTTONMASK|PointerMotionMask)
#define WIDTH(X)                ((X)->w + 2 * (X)->bw)
#define HEIGHT(X)               ((X)->h + 2 * (X)->bw)
#define TAGMASK                 ((1 << LENGTH(tags)) - 1)
#define TEXTW(X)                (textnw(X, strlen(X)) + dc.font.height)

/* enums */
enum { CurNormal, CurResize, CurMove, CurLast };        /* cursor */
enum { ColBorder, ColFG, ColBG, ColLast };              /* color */
enum { NetSupported, NetWMName, NetWMState,
       NetWMFullscreen, NetLast };                      /* EWMH atoms */
enum { WMProtocols, WMDelete, WMState, WMLast };        /* default atoms */
enum { ClkTagBar, ClkLtSymbol, ClkStatusText, ClkWinTitle,
       ClkClientWin, ClkRootWin, ClkLast };             /* clicks */

typedef union {
    int i;
    unsigned int ui;
    float f;
    const void *v;
} Arg;

typedef struct {
    unsigned int click;
    unsigned int mask;
    unsigned int button;
    void (*func)(const Arg *arg);
    const Arg arg;
} Button;

typedef struct Monitor Monitor;
typedef struct Client Client;
struct Client {
    char name[256];
    float mina, maxa;
    int x, y, w, h;
    int oldx, oldy, oldw, oldh;
    int basew, baseh, incw, inch, maxw, maxh, minw, minh;
    int bw, oldbw;
    unsigned int tags;
    Bool isfixed, isfloating, isurgent, oldstate;
    Client *next;
    Client *snext;
    Monitor *mon;
    Window win;
};

typedef struct {
    int x, y, w, h;
  unsigned long colors[MAXCOLORS][ColLast];
    Drawable drawable;
    GC gc;
  XftColor xftcolors[MAXCOLORS][ColLast];
  XftDraw *xftdrawable;
  PangoContext *pgc;
  PangoLayout *plo;
  PangoFontDescription *pfd;
    struct {
        int ascent;
        int descent;
        int height;
    } font;
} DC; /* draw context */

typedef struct {
    unsigned int mod;
    KeySym keysym;
    void (*func)(const Arg *);
    const Arg arg;
} Key;

typedef struct {
    const char *icon;
    const char *symbol;
  Bool addgaps;
    void (*arrange)(Monitor *);
} Layout;

struct Monitor {
    char ltsymbol[16];
    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];
    Bool showbar;
    Bool topbar;
    Client *clients;
    Client *sel;
    Client *stack;
    Monitor *next;
    Window barwin;
    const Layout *lt[2];
    int curtag;
    int prevtag;
    const Layout **lts;
    double *mfacts;
    int *nmasters;
};

typedef struct {
    const char *name;
    const Layout *layout;
    float mfact;
    int nmaster;
} Tag;

typedef struct {
    const char *class;
    const char *instance;
    const char *title;
    unsigned int tags;
    Bool isfloating;
    int monitor;
} Rule;

/* function declarations */
static void applyrules(Client *c);
static Bool applysizehints(Client *c, int *x, int *y, int *w, int *h, Bool interact);
static void arrange(Monitor *m);
static void arrangemon(Monitor *m);
static void attach(Client *c);
static void attachstack(Client *c);
static void buttonpress(XEvent *e);
static void checkotherwm(void);
static void cleanup(void);
static void cleanupmon(Monitor *mon);
static void clearurgent(Client *c);
static void clientmessage(XEvent *e);
static void configure(Client *c);
static void configurenotify(XEvent *e);
static void configurerequest(XEvent *e);
static Monitor *createmon(void);
static void destroynotify(XEvent *e);
static void detach(Client *c);
static void detachstack(Client *c);
static void die(const char *errstr, ...);
static Monitor *dirtomon(int dir);
static void drawbar(Monitor *m);
static void drawbars(void);
static void drawcoloredtext(char *text);
static void drawicon(const char *file, unsigned long col[ColLast]);
static void drawsquare(Bool filled, Bool empty, unsigned long col[ColLast]);
static void drawtext(const char *text, unsigned long col[ColLast], Bool pad);
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 unsigned long getcolor(const char *colstr, XftColor *color);
static Bool getrootptr(int *x, int *y);
static long getstate(Window w);
static Bool gettextprop(Window w, Atom atom, char *text, unsigned int size);
static void grabbuttons(Client *c, Bool focused);
static void grabkeys(void);
static void initfont(const char *fontstr);
static Bool isprotodel(Client *c);
static void keypress(XEvent *e);
static void killclient(const Arg *arg);
static void manage(Window w, XWindowAttributes *wa);
static void mappingnotify(XEvent *e);
static void maprequest(XEvent *e);
static void monocle(Monitor *m);
static void movemouse(const Arg *arg);
static Client *nexttiled(Client *c);
static Monitor *ptrtomon(int x, int y);
static void propertynotify(XEvent *e);
static void quit(const Arg *arg);
static void resize(Client *c, int x, int y, int w, int h, Bool interact);
static void resizeclient(Client *c, int x, int y, int w, int h);
static void resizemouse(const Arg *arg);
static void restack(Monitor *m);
static void run(void);
static void scan(void);
static void sendmon(Client *c, Monitor *m);
static void setclientstate(Client *c, long state);
static void setlayout(const Arg *arg);
static void setmfact(const Arg *arg);
static void setnmaster(const Arg *arg);
static void incnmaster(const Arg *arg);
static void setup(void);
static void showhide(Client *c);
static void sigchld(int unused);
static void spawn(const Arg *arg);
static void tag(const Arg *arg);
static void tagmon(const Arg *arg);
static int textnw(const char *text, unsigned int len);
static void ntile(Monitor *);
static void togglebar(const Arg *arg);
static void togglefloating(const Arg *arg);
static void toggletag(const Arg *arg);
static void toggleview(const Arg *arg);
static void unfocus(Client *c, Bool setfocus);
static void unmanage(Client *c, Bool destroyed);
static void unmapnotify(XEvent *e);
static Bool updategeom(void);
static void updatebarpos(Monitor *m);
static void updatebars(void);
static void updatenumlockmask(void);
static void updatesizehints(Client *c);
static void updatestatus(void);
static void updatetitle(Client *c);
static void updatewmhints(Client *c);
static void view(const Arg *arg);
static Client *wintoclient(Window w);
static Monitor *wintomon(Window w);
static int xerror(Display *dpy, XErrorEvent *ee);
static int xerrordummy(Display *dpy, XErrorEvent *ee);
static int xerrorstart(Display *dpy, XErrorEvent *ee);
static void zoom(const Arg *arg);

/* variables */
static const char broken[] = "broken";
static char stext[256];
static int screen;
static int sw, sh;           /* X display screen geometry width, height */
static int bh, blw = 0;      /* bar geometry */
static int (*xerrorxlib)(Display *, XErrorEvent *);
static unsigned int numlockmask = 0;
static void (*handler[LASTEvent]) (XEvent *) = {
    [ButtonPress] = buttonpress,
    [ClientMessage] = clientmessage,
    [ConfigureRequest] = configurerequest,
    [ConfigureNotify] = configurenotify,
    [DestroyNotify] = destroynotify,
    [EnterNotify] = enternotify,
    [Expose] = expose,
    [FocusIn] = focusin,
    [KeyPress] = keypress,
    [MappingNotify] = mappingnotify,
    [MapRequest] = maprequest,
    [PropertyNotify] = propertynotify,
    [UnmapNotify] = unmapnotify
};
static Atom wmatom[WMLast], netatom[NetLast];
static Bool otherwm;
static Bool running = True;
static Cursor cursor[CurLast];
static Display *dpy;
static DC dc;
static Monitor *mons = NULL, *selmon = NULL;
static Window root;

/* configuration, allows nested code to access above variables */
#include "config.h"

/* compile-time check if all tags fit into an unsigned int bit array. */
struct NumTags { char limitexceeded[LENGTH(tags) > 31 ? -1 : 1]; };

/* function implementations */
void
applyrules(Client *c) {
    const char *class, *instance;
    unsigned int i;
    const Rule *r;
    Monitor *m;
    XClassHint ch = { 0 };

    /* rule matching */
    c->isfloating = c->tags = 0;
    if(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];
}

Bool
applysizehints(Client *c, int *x, int *y, int *w, int *h, Bool interact) {
    Bool 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->mx + m->mw)
            *x = m->mx + m->mw - WIDTH(c);
        if(*y > m->my + m->mh)
            *y = m->my + m->mh - HEIGHT(c);
        if(*x + *w + 2 * c->bw < m->mx)
            *x = m->mx;
        if(*y + *h + 2 * c->bw < m->my)
            *y = m->my;
    }
    if(*h < bh)
        *h = bh;
    if(*w < bh)
        *w = bh;
    if(resizehints || c->isfloating) {
        /* 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 += c->basew;
        *h += c->baseh;
        *w = MAX(*w, c->minw);
        *h = MAX(*h, 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);
    focus(NULL);
    if(m)
        arrangemon(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);
    restack(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, True);
        selmon = m;
        focus(NULL);
    }
    if(ev->window == selmon->barwin) {
        i = x = 0;
        do {
            x += TEXTW(tags[i].name);
        } while(ev->x >= x && ++i < LENGTH(tags));
        if(i < LENGTH(tags)) {
            click = ClkTagBar;
            arg.ui = 1 << i;
        }
        else if(ev->x < x + blw)
            click = ClkLtSymbol;
        else if(ev->x > selmon->wx + selmon->ww - TEXTW(stext))
            click = ClkStatusText;
        else
            click = ClkWinTitle;
    }
    else if((c = wintoclient(ev->window))) {
        focus(c);
        click = ClkClientWin;
    }
    for(i = 0; i < LENGTH(buttons); i++)
        if(click == buttons[i].click && buttons[i].func && buttons[i].button == ev->button
        && CLEANMASK(buttons[i].mask) == CLEANMASK(ev->state))
            buttons[i].func(click == ClkTagBar && buttons[i].arg.i == 0 ? &arg : &buttons[i].arg);
}

void
checkotherwm(void) {
    otherwm = False;
    xerrorxlib = XSetErrorHandler(xerrorstart);
    /* this causes an error if some other window manager is running */
    XSelectInput(dpy, DefaultRootWindow(dpy), SubstructureRedirectMask);
    XSync(dpy, False);
    if(otherwm)
        die("dwm: another window manager is already running\n");
    XSetErrorHandler(xerror);
    XSync(dpy, False);
}

void
cleanup(void) {
    Arg a = {.ui = ~0};
    Layout foo = { "", False, NULL };
    Monitor *m;

    view(&a);
    selmon->lt[selmon->sellt] = &foo;
    for(m = mons; m; m = m->next)
        while(m->stack)
            unmanage(m->stack, False);
    XUngrabKey(dpy, AnyKey, AnyModifier, root);
    XFreePixmap(dpy, dc.drawable);
    XFreeGC(dpy, dc.gc);
    XFreeCursor(dpy, cursor[CurNormal]);
    XFreeCursor(dpy, cursor[CurResize]);
    XFreeCursor(dpy, cursor[CurMove]);
    while(mons)
        cleanupmon(mons);
    XSync(dpy, False);
    XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
}

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->mfacts);
    free(mon->nmasters);
    free(mon->lts);
    free(mon);
}

void
clearurgent(Client *c) {
    XWMHints *wmh;

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

void
configure(Client *c) {
    XConfigureEvent ce;

    ce.type = ConfigureNotify;
    ce.display = dpy;
    ce.event = c->win;
    ce.window = c->win;
    ce.x = c->x;
    ce.y = c->y;
    ce.width = c->w;
    ce.height = c->h;
    ce.border_width = c->bw;
    ce.above = None;
    ce.override_redirect = False;
    XSendEvent(dpy, c->win, False, StructureNotifyMask, (XEvent *)&ce);
}

void
configurenotify(XEvent *e) {
    Monitor *m;
    XConfigureEvent *ev = &e->xconfigure;

    if(ev->window == root) {
        sw = ev->width;
        sh = ev->height;
        if(updategeom()) {
            if(dc.drawable != 0)
                XFreePixmap(dpy, dc.drawable);
            dc.drawable = XCreatePixmap(dpy, root, sw, bh, DefaultDepth(dpy, screen));
      XftDrawChange(dc.xftdrawable, dc.drawable);
            updatebars();
            for(m = mons; m; m = m->next)
                XMoveResizeWindow(dpy, m->barwin, m->wx, m->by, m->ww, bh);
            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->x = m->mx + ev->x;
            if(ev->value_mask & CWY)
                c->y = m->my + ev->y;
            if(ev->value_mask & CWWidth)
                c->w = ev->width;
            if(ev->value_mask & CWHeight)
                c->h = ev->height;
            if((c->x + c->w) > m->mx + m->mw && c->isfloating)
                c->x = m->mx + (m->mw / 2 - c->w / 2); /* center in x direction */
            if((c->y + c->h) > m->my + m->mh && c->isfloating)
                c->y = m->my + (m->mh / 2 - c->h / 2); /* center in y direction */
            if((ev->value_mask & (CWX|CWY)) && !(ev->value_mask & (CWWidth|CWHeight)))
                configure(c);
            if(ISVISIBLE(c))
                XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h);
        }
        else
            configure(c);
    }
    else {
        wc.x = ev->x;
        wc.y = ev->y;
        wc.width = ev->width;
        wc.height = ev->height;
        wc.border_width = ev->border_width;
        wc.sibling = ev->above;
        wc.stack_mode = ev->detail;
        XConfigureWindow(dpy, ev->window, ev->value_mask, &wc);
    }
    XSync(dpy, False);
}

/* TODO Check how many times createmon is called */
Monitor *
createmon(void) {
    Monitor *m;
    int i, numtags = LENGTH(tags) + 1;

    if(!(m = (Monitor *)calloc(1, sizeof(Monitor))))
        die("fatal: could not malloc() %u bytes\n", sizeof(Monitor));
    if(!(m->mfacts = calloc(sizeof(double), numtags)))
        die("fatal: could not malloc() %u bytes\n", sizeof(double) * numtags);
    if(!(m->nmasters = calloc(sizeof(int), numtags)))
        die("fatal: could not malloc() %u bytes\n", sizeof(int) * numtags);
    if(!(m->lts = calloc(sizeof(Layout *), numtags)))
        die("fatal: could not malloc() %u bytes\n", sizeof(Layout *) * numtags);
    m->tagset[0] = m->tagset[1] = 1;
    m->showbar = showbar;
    m->topbar = topbar;
    m->curtag = m->prevtag = 1;
    for(i = 1; i < numtags; i++) {
        m->mfacts[i] = tags[i - 1].mfact < 0 ? mfact : tags[i - 1].mfact;
        m->nmasters[i] = tags[i - 1].nmaster < 0 ? nmaster : tags[i - 1].nmaster;
        m->lts[i] = tags[i - 1].layout;
    }
    m->lt[0] = m->lts[m->curtag];
    m->lt[1] = &layouts[1 % LENGTH(layouts)];
    strncpy(m->ltsymbol, m->lt[0]->symbol, sizeof m->ltsymbol);
    return m;
}

void
destroynotify(XEvent *e) {
    Client *c;
    XDestroyWindowEvent *ev = &e->xdestroywindow;

    if((c = wintoclient(ev->window)))
        unmanage(c, True);
}

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;
    }
}

void
die(const char *errstr, ...) {
    va_list ap;

    va_start(ap, errstr);
    vfprintf(stderr, errstr, ap);
    va_end(ap);
    exit(EXIT_FAILURE);
}

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;
    unsigned int i, occ = 0, urg = 0;
    unsigned long *col;
    Client *c;

    for(c = m->clients; c; c = c->next) {
        occ |= c->tags;
        if(c->isurgent)
            urg |= c->tags;
    }
    dc.x = 0;
    for(i = 0; i < LENGTH(tags); i++) {
        dc.w = TEXTW(tags[i].name);
        col = dc.colors[ (m->tagset[m->seltags] & 1 << i ? 1:(urg & 1 << i ? 2:0))];
        drawtext(tags[i].name, col, True);
        drawsquare(m == selmon && selmon->sel && selmon->sel->tags & 1 << i, occ & 1 << i, col);
        dc.x += dc.w;
    }
    blw = TEXTW(m->ltsymbol);

    if(useicons) {
        dc.w = dc.h;
        drawicon(m->lt[m->sellt]->icon, dc.colors[0]);
    }
    else {
        dc.w = blw;
        drawtext(m->ltsymbol, dc.colors[0], False);
    }
    
    dc.x += dc.w;
    x = dc.x;
    if(m == selmon) { /* status is only drawn on selected monitor */
        dc.w = TEXTW(stext);
        dc.x = m->ww - dc.w;
        if(dc.x < x) {
            dc.x = x;
            dc.w = m->ww - x;
        }
        drawcoloredtext(stext);
    }
    else
        dc.x = m->ww;
    if((dc.w = dc.x - x) > bh) {
        dc.x = x;
        if(m->sel) {
            col = m == selmon ? dc.colors[0] : dc.colors[3];
            drawtext(m->sel->name, col, True);
            drawsquare(m->sel->isfixed, m->sel->isfloating, col);
        }
        else
            drawtext(NULL, dc.colors[0], False);
    }
    XCopyArea(dpy, dc.drawable, m->barwin, dc.gc, 0, 0, m->ww, bh, 0, 0);
    XSync(dpy, False);
}

void
drawbars(void) {
    Monitor *m;

    for(m = mons; m; m = m->next)
        drawbar(m);
}

void
drawcoloredtext(char *text) {
    Bool first=True;
    char *buf = text, *ptr = buf, c = 1;
    unsigned long *col = dc.colors[0];
    int i, ox = dc.x;

    while( *ptr ) {
        for( i = 0; *ptr < 0 || *ptr > NUMCOLORS; i++, ptr++);
        if( !*ptr ) break;
        c=*ptr;
        *ptr=0;
        if( i ) {
            dc.w = selmon->ww - dc.x;
            drawtext(buf, col, first);
            dc.x += textnw(buf, i) + textnw(&c,1);
            if( first ) dc.x += ( dc.font.ascent + dc.font.descent ) / 2;
            first = False;
        } else if( first ) {
            ox = dc.x += textnw(&c,1);
        }
        *ptr = c;
        col = dc.colors[ c-1 ];
        buf = ++ptr;
    }
    if( !first ) dc.x-=(dc.font.ascent+dc.font.descent)/2;
    drawtext(buf, col, True);
    dc.x = ox;
}


void

drawicon(const char *file, unsigned long col[ColLast]) {
    Pixmap icon;
    int px, py;
    unsigned int pw, ph;
    icon = XCreatePixmap(dpy, dc.drawable, dc.h, dc.h, 1);
    XReadBitmapFile(dpy, dc.drawable, file, &pw, &ph, &icon, &px, &py);
    XSetForeground(dpy, dc.gc, col[ColBG]);
    XFillRectangle(dpy, dc.drawable, dc.gc, dc.x, 0, dc.h, dc.h);
    XSetForeground(dpy, dc.gc, col[ColFG]);
    XSetBackground(dpy, dc.gc, col[ColBG]);
    XCopyPlane(dpy, icon, dc.drawable, dc.gc, px, py, pw, ph, dc.x, dc.h/2-ph/2+py, 1);
    }

void

drawsquare(Bool filled, Bool empty, unsigned long col[ColLast]) {
    int x;
    XGCValues gcv;
    XRectangle r = { dc.x, dc.y, dc.w, dc.h };

    gcv.foreground = col[ ColFG ];
    XChangeGC(dpy, dc.gc, GCForeground, &gcv);
    x = (dc.font.ascent + dc.font.descent + 2) / 4;
    r.x = dc.x + 1;
    r.y = dc.y + 1;
    if(filled) {
        r.width = r.height = x + 1;
        XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
    }
    else if(empty) {
        r.width = r.height = x;
        XDrawRectangles(dpy, dc.drawable, dc.gc, &r, 1);
    }
}

void
drawtext(const char *text, unsigned long col[ColLast], Bool pad) {
    char buf[256];
    int i, x, y, h, len, olen;
    XRectangle r = { dc.x, dc.y, dc.w, dc.h };
  XftColor *xftcol = dc.xftcolors[0];

    XSetForeground(dpy, dc.gc, col[ ColBG ]);
    XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
    if(!text)
        return;
    olen = strlen(text);
    h = pad ? (dc.font.ascent + dc.font.descent) : 0;
    y = dc.y;
    x = dc.x + (h / 2);
    /* shorten text if necessary */
    for(len = MIN(olen, sizeof buf); len && textnw(text, len) > dc.w - h; len--);
    if(!len)
        return;
    memcpy(buf, text, len);
    if(len < olen)
        for(i = len; i && i > len - 3; buf[--i] = '.');
  for(i = 0; i < NUMCOLORS; i++) {
    if (col == dc.colors[i]) {
      xftcol = dc.xftcolors[i];
      break;
    }
  }  
  pango_layout_set_text(dc.plo, text, len);
  pango_xft_render_layout(dc.xftdrawable, &xftcol[ColFG], dc.plo, x * PANGO_SCALE, y * PANGO_SCALE);
}

void
enternotify(XEvent *e) {
    Client *c;
    Monitor *m;
    XCrossingEvent *ev = &e->xcrossing;

    if((ev->mode != NotifyNormal || ev->detail == NotifyInferior) && ev->window != root)
        return;
    if((m = wintomon(ev->window)) && m != selmon) {
        unfocus(selmon->sel, True);
        selmon = m;
    }
    if((c = wintoclient(ev->window)))
        focus(c);
    else
        focus(NULL);
}

void
expose(XEvent *e) {
    Monitor *m;
    XExposeEvent *ev = &e->xexpose;

    if(ev->count == 0 && (m = wintomon(ev->window)))
        drawbar(m);
}

void
focus(Client *c) {
    if(!c || !ISVISIBLE(c))
        for(c = selmon->stack; c && !ISVISIBLE(c); c = c->snext);
    /* was if(selmon->sel) */
    if(selmon->sel && selmon->sel != c)
        unfocus(selmon->sel, False);
    if(c) {
        if(c->mon != selmon)
            selmon = c->mon;
        if(c->isurgent)
            clearurgent(c);
        detachstack(c);
        attachstack(c);
        grabbuttons(c, True);
        XSetWindowBorder(dpy, c->win, dc.colors[1][ColBorder]);
        XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime);
    }
    else
        XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
    selmon->sel = c;
    drawbars();
}

void
focusin(XEvent *e) { /* there are some broken focus acquiring clients */
    XFocusChangeEvent *ev = &e->xfocus;

    if(selmon->sel && ev->window != selmon->sel->win)
        XSetInputFocus(dpy, selmon->sel->win, RevertToPointerRoot, CurrentTime);
}

void
focusmon(const Arg *arg) {
    Monitor *m = NULL;

    if(!mons->next)
        return;
    if((m = dirtomon(arg->i)) == selmon)
        return;
    unfocus(selmon->sel, True);
    selmon = m;
    focus(NULL);
}

void
focusstack(const Arg *arg) {
    Client *c = NULL, *i;

    if(!selmon->sel)
        return;
    if(arg->i > 0) {
        for(c = selmon->sel->next; c && !ISVISIBLE(c); c = c->next);
        if(!c)
            for(c = selmon->clients; c && !ISVISIBLE(c); c = c->next);
    }
    else {
        for(i = selmon->clients; i != selmon->sel; i = i->next)
            if(ISVISIBLE(i))
                c = i;
        if(!c)
            for(; i; i = i->next)
                if(ISVISIBLE(i))
                    c = i;
    }
    if(c) {
        focus(c);
        restack(selmon);
    }
}

unsigned long
getcolor(const char *colstr, XftColor *color) {
    Colormap cmap = DefaultColormap(dpy, screen);
  Visual *vis = DefaultVisual(dpy, screen);

  if(!XftColorAllocName(dpy, vis, cmap, colstr, color))
        die("error, cannot allocate color '%s'\n", colstr);
    return color->pixel;
}

Bool
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;
}

Bool
gettextprop(Window w, Atom atom, char *text, unsigned int size) {
    char **list = NULL;
    int n;
    XTextProperty name;

    if(!text || size == 0)
        return False;
    text[0] = '\0';
    XGetTextProperty(dpy, w, &name, atom);
    if(!name.nitems)
        return False;
    if(name.encoding == XA_STRING)
        strncpy(text, (char *)name.value, size - 1);
    else {
        if(XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success && n > 0 && *list) {
            strncpy(text, *list, size - 1);
            XFreeStringList(list);
        }
    }
    text[size - 1] = '\0';
    XFree(name.value);
    return True;
}

void
grabbuttons(Client *c, Bool focused) {
    updatenumlockmask();
    {
        unsigned int i, j;
        unsigned int modifiers[] = { 0, LockMask, numlockmask, numlockmask|LockMask };
        XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
        if(focused) {
            for(i = 0; i < LENGTH(buttons); i++)
                if(buttons[i].click == ClkClientWin)
                    for(j = 0; j < LENGTH(modifiers); j++)
                        XGrabButton(dpy, buttons[i].button,
                                    buttons[i].mask | modifiers[j],
                                    c->win, False, BUTTONMASK,
                                    GrabModeAsync, GrabModeSync, None, None);
        }
        else
            XGrabButton(dpy, AnyButton, AnyModifier, c->win, False,
                        BUTTONMASK, GrabModeAsync, GrabModeSync, None, None);
    }
}

void
grabkeys(void) {
    updatenumlockmask();
    {
        unsigned int i, j;
        unsigned int modifiers[] = { 0, LockMask, numlockmask, numlockmask|LockMask };
        KeyCode code;

        XUngrabKey(dpy, AnyKey, AnyModifier, root);
        for(i = 0; i < LENGTH(keys); i++) {
            if((code = XKeysymToKeycode(dpy, keys[i].keysym)))
                for(j = 0; j < LENGTH(modifiers); j++)
                    XGrabKey(dpy, code, keys[i].mod | modifiers[j], root,
                         True, GrabModeAsync, GrabModeAsync);
        }
    }
}

void
initfont(const char *fontstr) {
  PangoFontMetrics *metrics;

    dc.pgc = pango_xft_get_context(dpy, screen);
    dc.pfd = pango_font_description_from_string(fontstr);

    metrics = pango_context_get_metrics(dc.pgc, dc.pfd, pango_language_from_string(setlocale(LC_CTYPE, "")));
    dc.font.ascent = pango_font_metrics_get_ascent(metrics) / PANGO_SCALE;
    dc.font.descent = pango_font_metrics_get_descent(metrics) / PANGO_SCALE;

    pango_font_metrics_unref(metrics);

    dc.plo = pango_layout_new(dc.pgc);
    pango_layout_set_font_description(dc.plo, dc.pfd);
    dc.font.height = dc.font.ascent + dc.font.descent;
}

Bool
isprotodel(Client *c) {
    int i, n;
    Atom *protocols;
    Bool ret = False;

    if(XGetWMProtocols(dpy, c->win, &protocols, &n)) {
        for(i = 0; !ret && i < n; i++)
            if(protocols[i] == wmatom[WMDelete])
                ret = True;
        XFree(protocols);
    }
    return ret;
}

#ifdef XINERAMA
static Bool
isuniquegeom(XineramaScreenInfo *unique, size_t len, XineramaScreenInfo *info) {
    unsigned int i;

    for(i = 0; i < len; i++)
        if(unique[i].x_org == info->x_org && unique[i].y_org == info->y_org
        && unique[i].width == info->width && unique[i].height == info->height)
            return False;
    return True;
}
#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) {
    XEvent ev;

    if(!selmon->sel)
        return;
    if(isprotodel(selmon->sel)) {
        ev.type = ClientMessage;
        ev.xclient.window = selmon->sel->win;
        ev.xclient.message_type = wmatom[WMProtocols];
        ev.xclient.format = 32;
        ev.xclient.data.l[0] = wmatom[WMDelete];
        ev.xclient.data.l[1] = CurrentTime;
        XSendEvent(dpy, selmon->sel->win, False, NoEventMask, &ev);
    }
    else {
        XGrabServer(dpy);
        XSetErrorHandler(xerrordummy);
        XSetCloseDownMode(dpy, DestroyAll);
        XKillClient(dpy, selmon->sel->win);
        XSync(dpy, False);
        XSetErrorHandler(xerror);
        XUngrabServer(dpy);
    }
}

void
manage(Window w, XWindowAttributes *wa) {
    static Client cz;
    Client *c, *t = NULL;
    Window trans = None;
    XWindowChanges wc;

    if(!(c = malloc(sizeof(Client))))
        die("fatal: could not malloc() %u bytes\n", sizeof(Client));
    *c = cz;
    c->win = w;
    updatetitle(c);
    if(XGetTransientForHint(dpy, w, &trans))
        t = wintoclient(trans);
    if(t) {
        c->mon = t->mon;
        c->tags = t->tags;
    }
    else {
        c->mon = selmon;
        applyrules(c);
    }
    /* geometry */
    c->x = c->oldx = wa->x + c->mon->wx;
    c->y = c->oldy = wa->y + c->mon->wy;
    c->w = c->oldw = wa->width;
    c->h = c->oldh = wa->height;
    c->oldbw = wa->border_width;
    if(c->w == c->mon->mw && c->h == c->mon->mh) {
        c->isfloating = 1;
        c->x = c->mon->mx;
        c->y = c->mon->my;
        c->bw = 0;
    }
    else {
        if(c->x + WIDTH(c) > c->mon->mx + c->mon->mw)
            c->x = c->mon->mx + c->mon->mw - WIDTH(c);
        if(c->y + HEIGHT(c) > c->mon->my + c->mon->mh)
            c->y = c->mon->my + c->mon->mh - HEIGHT(c);
        c->x = MAX(c->x, c->mon->mx);
        /* only fix client y-offset, if the client center might cover the bar */
        c->y = MAX(c->y, ((c->mon->by == 0) && (c->x + (c->w / 2) >= c->mon->wx)
                   && (c->x + (c->w / 2) < c->mon->wx + c->mon->ww)) ? bh : c->mon->my);
        c->bw = borderpx;
    }
    wc.border_width = c->bw;
    XConfigureWindow(dpy, w, CWBorderWidth, &wc);
    XSetWindowBorder(dpy, w, dc.colors[0][ColBorder]);
    configure(c); /* propagates border_width, if size doesn't change */
    updatesizehints(c);
    XSelectInput(dpy, w, EnterWindowMask|FocusChangeMask|PropertyChangeMask|StructureNotifyMask);
    grabbuttons(c, False);
    if(!c->isfloating)
        c->isfloating = c->oldstate = trans != None || c->isfixed;
    if(c->isfloating)
        XRaiseWindow(dpy, c->win);
    attach(c);
    attachstack(c);
    XMoveResizeWindow(dpy, c->win, c->x + 2 * sw, c->y, c->w, c->h); /* some windows require this */
    XMapWindow(dpy, c->win);
    setclientstate(c, NormalState);
    arrange(c->mon);
}

void
mappingnotify(XEvent *e) {
    XMappingEvent *ev = &e->xmapping;

    XRefreshKeyboardMapping(ev);
    if(ev->request == MappingKeyboard)
        grabkeys();
}

void
maprequest(XEvent *e) {
    static XWindowAttributes wa;
    XMapRequestEvent *ev = &e->xmaprequest;

    if(!XGetWindowAttributes(dpy, ev->window, &wa))
        return;
    if(wa.override_redirect)
        return;
    if(!wintoclient(ev->window))
        manage(ev->window, &wa);
}

void
monocle(Monitor *m) {
    unsigned int n = 0;
    Client *c;

    for(c = m->clients; c; c = c->next)
        if(ISVISIBLE(c))
            n++;
    if(n > 0) /* override layout symbol */
        snprintf(m->ltsymbol, sizeof m->ltsymbol, "[%d]", n);
    for(c = nexttiled(m->clients); c; c = nexttiled(c->next))
        resize(c, m->wx, m->wy, m->ww - 2 * c->bw, m->wh - 2 * c->bw, False);
}

void
movemouse(const Arg *arg) {
    int x, y, ocx, ocy, nx, ny;
    Client *c;
    Monitor *m;
    XEvent ev;

    if(!(c = selmon->sel))
        return;
    restack(selmon);
    ocx = c->x;
    ocy = c->y;
    if(XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
    None, cursor[CurMove], 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:
            nx = ocx + (ev.xmotion.x - x);
            ny = ocy + (ev.xmotion.y - y);
            if(snap && nx >= selmon->wx && nx <= selmon->wx + selmon->ww
            && ny >= selmon->wy && ny <= selmon->wy + selmon->wh) {
                if(abs(selmon->wx - nx) < snap)
                    nx = selmon->wx;
                else if(abs((selmon->wx + selmon->ww) - (nx + WIDTH(c))) < snap)
                    nx = selmon->wx + selmon->ww - WIDTH(c);
                if(abs(selmon->wy - ny) < snap)
                    ny = selmon->wy;
                else if(abs((selmon->wy + selmon->wh) - (ny + HEIGHT(c))) < snap)
                    ny = selmon->wy + selmon->wh - HEIGHT(c);
                if(!c->isfloating && selmon->lt[selmon->sellt]->arrange
                && (abs(nx - c->x) > snap || abs(ny - c->y) > snap))
                    togglefloating(NULL);
            }
            if(!selmon->lt[selmon->sellt]->arrange || c->isfloating)
                resize(c, nx, ny, c->w, c->h, True);
            break;
        }
    } while(ev.type != ButtonRelease);
    XUngrabPointer(dpy, CurrentTime);
    if((m = ptrtomon(c->x + c->w / 2, c->y + c->h / 2)) != selmon) {
        sendmon(c, m);
        selmon = m;
        focus(NULL);
    }
}

Client *
nexttiled(Client *c) {
    for(; c && (c->isfloating || !ISVISIBLE(c)); c = c->next);
    return c;
}

Monitor *
ptrtomon(int x, int y) {
    Monitor *m;

    for(m = mons; m; m = m->next)
        if(INRECT(x, y, m->wx, m->wy, m->ww, m->wh))
            return m;
    return selmon;
}

void
propertynotify(XEvent *e) {
    Client *c;
    Window trans;
    XPropertyEvent *ev = &e->xproperty;

    if((ev->window == root) && (ev->atom == XA_WM_NAME))
        updatestatus();
    else if(ev->state == PropertyDelete)
        return; /* ignore */
    else if((c = wintoclient(ev->window))) {
        switch (ev->atom) {
        default: break;
        case XA_WM_TRANSIENT_FOR:
            XGetTransientForHint(dpy, c->win, &trans);
            if(!c->isfloating && (c->isfloating = (wintoclient(trans) != NULL)))
                arrange(c->mon);
            break;
        case XA_WM_NORMAL_HINTS:
            updatesizehints(c);
            break;
        case XA_WM_HINTS:
            updatewmhints(c);
            drawbars();
            break;
        }
        if(ev->atom == XA_WM_NAME || ev->atom == netatom[NetWMName]) {
            updatetitle(c);
            if(c == c->mon->sel)
                drawbar(c->mon);
        }
    }
}

void
clientmessage(XEvent *e) {
    XClientMessageEvent *cme = &e->xclient;
    Client *c;

    if((c = wintoclient(cme->window))
    && (cme->message_type == netatom[NetWMState] && cme->data.l[1] == netatom[NetWMFullscreen]))
    {
        if(cme->data.l[0]) {
            XChangeProperty(dpy, cme->window, netatom[NetWMState], XA_ATOM, 32,
                            PropModeReplace, (unsigned char*)&netatom[NetWMFullscreen], 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 {
            XChangeProperty(dpy, cme->window, netatom[NetWMState], XA_ATOM, 32,
                            PropModeReplace, (unsigned char*)0, 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
quit(const Arg *arg) {
    running = False;
}

void
resize(Client *c, int x, int y, int w, int h, Bool interact) {
    if(applysizehints(c, &x, &y, &w, &h, interact))
        resizeclient(c, x, y, w, h);
}

void
resizeclient(Client *c, int x, int y, int w, int h) {
    XWindowChanges wc;
  unsigned int gap = c->isfloating ? 0 : selmon->lt[selmon->sellt]->addgaps ? gappx : 0;

    c->oldx = c->x; c->x = wc.x = x + gap;
    c->oldy = c->y; c->y = wc.y = y + gap;
    c->oldw = c->w; c->w = wc.width = w - (gap ? (x + w + (c->bw * 2) == c->mon->wx + c->mon->ww ? 2 : 1) * gap : 0);
    c->oldh = c->h; c->h = wc.height = h - (gap ? (y + h + (c->bw * 2) == c->mon->wy + c->mon->wh ? 2 : 1) * gap : 0);
    wc.border_width = c->bw;
    XConfigureWindow(dpy, c->win, CWX|CWY|CWWidth|CWHeight|CWBorderWidth, &wc);
    configure(c);
    XSync(dpy, False);
}

void
resizemouse(const Arg *arg) {
    int ocx, ocy;
    int nw, nh;
    Client *c;
    Monitor *m;
    XEvent ev;

    if(!(c = selmon->sel))
        return;
    restack(selmon);
    ocx = c->x;
    ocy = c->y;
    if(XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
                    None, cursor[CurResize], 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:
            nw = MAX(ev.xmotion.x - ocx - 2 * c->bw + 1, 1);
            nh = MAX(ev.xmotion.y - ocy - 2 * c->bw + 1, 1);
            if(snap && nw >= selmon->wx && nw <= selmon->wx + selmon->ww
            && nh >= selmon->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, True);
            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 = ptrtomon(c->x + c->w / 2, c->y + c->h / 2)) != 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, True);
    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);
}

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] = selmon->lts[selmon->curtag] = (Layout *)arg->v;
    strncpy(selmon->ltsymbol, selmon->lt[selmon->sellt]->symbol, sizeof selmon->ltsymbol);
    if(selmon->sel)
        arrange(selmon);
    else
        drawbar(selmon);
}

static void
incnmaster(const Arg *arg) {
    int i;

    if(!arg || !selmon->lt[selmon->sellt]->arrange)
        return;
    i = selmon->nmasters[selmon->curtag] + arg->i;
    selmon->nmasters[selmon->curtag] = i < 0 ? 0 : i;
    arrange(selmon);
}

static void
setnmaster(const Arg *arg) {
    if(!arg || !selmon->lt[selmon->sellt]->arrange)
        return;
    selmon->nmasters[selmon->curtag] = arg->i > 0 ? arg->i : 0;
    arrange(selmon);
}

/* arg > 1.0 will set mfact absolutly */
void
setmfact(const Arg *arg) {
    float f;

    if(!arg || !selmon->lt[selmon->sellt]->arrange)
        return;
    f = arg->f < 1.0 ? arg->f + selmon->mfacts[selmon->curtag] : arg->f - 1.0;
    if(f < 0.1 || f > 0.9)
        return;
    selmon->mfacts[selmon->curtag] = f;
    arrange(selmon);
}

void
setup(void) {
    XSetWindowAttributes wa;

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

    /* init screen */
    screen = DefaultScreen(dpy);
    root = RootWindow(dpy, screen);
    initfont(font);
    sw = DisplayWidth(dpy, screen);
    sh = DisplayHeight(dpy, screen);
    bh = dc.h = dc.font.height + 2;
    updategeom();
    /* init atoms */
    wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);
    wmatom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
    wmatom[WMState] = XInternAtom(dpy, "WM_STATE", False);
    netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False);
    netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False);
    netatom[NetWMState] = XInternAtom(dpy, "_NET_WM_STATE", False);
    netatom[NetWMFullscreen] = XInternAtom(dpy, "_NET_WM_STATE_FULLSCREEN", False);
    /* init cursors */
    cursor[CurNormal] = XCreateFontCursor(dpy, XC_left_ptr);
    cursor[CurResize] = XCreateFontCursor(dpy, XC_sizing);
    cursor[CurMove] = XCreateFontCursor(dpy, XC_fleur);
    /* init appearance */
    for(int i=0; i<NUMCOLORS; i++) {
        dc.colors[i][ColBorder] = getcolor( colors[i][ColBorder], &dc.xftcolors[i][ColBorder] );
        dc.colors[i][ColFG] = getcolor( colors[i][ColFG], &dc.xftcolors[i][ColFG] );
        dc.colors[i][ColBG] = getcolor( colors[i][ColBG], &dc.xftcolors[i][ColBG] );
    }
    dc.drawable = XCreatePixmap(dpy, root, DisplayWidth(dpy, screen), bh, DefaultDepth(dpy, screen));
    dc.gc = XCreateGC(dpy, root, 0, NULL);
    XSetLineAttributes(dpy, dc.gc, 1, LineSolid, CapButt, JoinMiter);
  dc.xftdrawable = XftDrawCreate(dpy, dc.drawable, DefaultVisual(dpy,screen), DefaultColormap(dpy,screen));
  if(!dc.xftdrawable)
    printf("error, cannot create drawable\n");
    /* init bars */
    updatebars();
    updatestatus();
    /* EWMH support per view */
    XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32,
            PropModeReplace, (unsigned char *) netatom, NetLast);
    /* select for events */
    wa.cursor = cursor[CurNormal];
    wa.event_mask = SubstructureRedirectMask|SubstructureNotifyMask|ButtonPressMask
                    |EnterWindowMask|LeaveWindowMask|StructureNotifyMask
                    |PropertyChangeMask;
    XChangeWindowAttributes(dpy, root, CWEventMask|CWCursor, &wa);
    XSelectInput(dpy, root, wa.event_mask);
    grabkeys();
}

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)
            resize(c, c->x, c->y, c->w, c->h, False);
        showhide(c->snext);
    }
    else { /* hide clients bottom up */
        showhide(c->snext);
        XMoveWindow(dpy, c->win, c->x + 2 * sw, c->y);
    }
}


void
sigchld(int unused) {
    if(signal(SIGCHLD, sigchld) == SIG_ERR)
        die("Can't install SIGCHLD handler");
    while(0 < waitpid(-1, NULL, WNOHANG));
}

void
spawn(const Arg *arg) {
    if(fork() == 0) {
        if(dpy)
            close(ConnectionNumber(dpy));
        setsid();
        execvp(((char **)arg->v)[0], (char **)arg->v);
        fprintf(stderr, "dwm: execvp %s", ((char **)arg->v)[0]);
        perror(" failed");
        exit(0);
    }
}

void
tag(const Arg *arg) {
    if(selmon->sel && arg->ui & TAGMASK) {
        selmon->sel->tags = arg->ui & TAGMASK;
        arrange(selmon);
    }
}

void
tagmon(const Arg *arg) {
    if(!selmon->sel || !mons->next)
        return;
    sendmon(selmon->sel, dirtomon(arg->i));
}

int
textnw(const char *text, unsigned int len) {
  PangoRectangle r;
  pango_layout_set_text(dc.plo, text, len);
  pango_layout_get_extents(dc.plo, &r, 0);
  return r.width / PANGO_SCALE;
}

void
ntile(Monitor *m) {
    int x, y, h, w, mw, nmax, nm;
    unsigned int i, n;
    Client *c;

    snprintf(m->ltsymbol, sizeof m->ltsymbol, "=%d]", m->nmasters[m->curtag]);
    for(n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++);
    c = nexttiled(m->clients);
    nmax = m->nmasters[m->curtag];
    nm = nmax == 1 ? 1 : MIN(n / 2, nmax);
    if(nm > n)
        nm = n;
    /* master */
    if(nm > 0) {
        mw = selmon->mfacts[selmon->curtag] * m->ww;
        h = m->wh / nm;
        if(h < bh)
            h = m->wh;
        y = m->wy;
        for(i = 0; i < nm; i++, c = nexttiled(c->next)) {
            resize(c, m->wx, y, (n == nm ? m->ww : mw) - 2 * c->bw,
                   ((i + 1 == nm) ? m->wy + m->wh - y : h) - 2 * c->bw, False);
            if(h != m->wh)
                y = c->y + HEIGHT(c);
        }
        n -= nm;
    } else
        mw = 0;
    if(n == 0)
        return;
    /* tile stack */
    x = m->wx + mw;
    y = m->wy;
    w = m->ww - mw;
    h = m->wh / n;
    if(h < bh)
        h = m->wh;
    for(i = 0; c; c = nexttiled(c->next), i++) {
        resize(c, x, y, w - 2 * c->bw,
               ((i + 1 == n) ? m->wy + m->wh - y : h) - 2 * c->bw, False);
        if(h != m->wh)
            y = c->y + HEIGHT(c);
    }
}

void
togglebar(const Arg *arg) {
    selmon->showbar = !selmon->showbar;
    updatebarpos(selmon);
    XMoveResizeWindow(dpy, selmon->barwin, selmon->wx, selmon->by, selmon->ww, bh);
    arrange(selmon);
}

void
togglefloating(const Arg *arg) {
    if(!selmon->sel)
        return;
    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, False);
    arrange(selmon);
}

void
toggletag(const Arg *arg) {
    unsigned int newtags;
    unsigned int i;

    if(!selmon->sel)
        return;
    newtags = selmon->sel->tags ^ (arg->ui & TAGMASK);
    if(newtags) {
        selmon->sel->tags = newtags;
        if(newtags == ~0) {
            selmon->prevtag = selmon->curtag;
            selmon->curtag = 0;
        }
        if(!(newtags & 1 << (selmon->curtag - 1))) {
            selmon->prevtag = selmon->curtag;
            for (i=0; !(newtags & 1 << i); i++);
            selmon->curtag = i + 1;
        }
        selmon->sel->tags = newtags;
        selmon->lt[selmon->sellt] = selmon->lts[selmon->curtag];
        arrange(selmon);
    }
}

void
toggleview(const Arg *arg) {
    unsigned int newtagset = selmon->tagset[selmon->seltags] ^ (arg->ui & TAGMASK);

    if(newtagset) {
        selmon->tagset[selmon->seltags] = newtagset;
        arrange(selmon);
    }
}

void
unfocus(Client *c, Bool setfocus) {
    if(!c)
        return;
    grabbuttons(c, False);
    XSetWindowBorder(dpy, c->win, dc.colors[0][ColBorder]);
    if(setfocus)
        XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
}

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

    /* The server grab construct avoids race conditions. */
    detach(c);
    detachstack(c);
    if(!destroyed) {
        wc.border_width = c->oldbw;
        XGrabServer(dpy);
        XSetErrorHandler(xerrordummy);
        XConfigureWindow(dpy, c->win, CWBorderWidth, &wc); /* restore border */
        XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
        setclientstate(c, WithdrawnState);
        XSync(dpy, False);
        XSetErrorHandler(xerror);
        XUngrabServer(dpy);
    }
    free(c);
    focus(NULL);
    arrange(m);
}

void
unmapnotify(XEvent *e) {
    Client *c;
    XUnmapEvent *ev = &e->xunmap;

    if((c = wintoclient(ev->window)))
        unmanage(c, False);
}

void
updatebars(void) {
    Monitor *m;
    XSetWindowAttributes wa;

    wa.override_redirect = True;
    wa.background_pixmap = ParentRelative;
    wa.event_mask = ButtonPressMask|ExposureMask;
    for(m = mons; m; m = m->next) {
        m->barwin = XCreateWindow(dpy, root, m->wx, m->by, m->ww, bh, 0, DefaultDepth(dpy, screen),
                                  CopyFromParent, DefaultVisual(dpy, screen),
                                  CWOverrideRedirect|CWBackPixmap|CWEventMask, &wa);
        XDefineCursor(dpy, m->barwin, cursor[CurNormal]);
        XMapRaised(dpy, m->barwin);
    }
}

void
updatebarpos(Monitor *m) {
    m->wy = m->my;
    m->wh = m->mh;
    if(m->showbar) {
        m->wh -= bh;
        m->by = m->topbar ? m->wy : m->wy + m->wh;
        m->wy = m->topbar ? m->wy + bh : m->wy;
    }
    else
        m->by = -bh;
}

Bool
updategeom(void) {
    Bool dirty = False;

#ifdef XINERAMA
    if(XineramaIsActive(dpy)) {
        int i, j, n, nn;
        Client *c;
        Monitor *m;
        XineramaScreenInfo *info = XineramaQueryScreens(dpy, &nn);
        XineramaScreenInfo *unique = NULL;

        info = XineramaQueryScreens(dpy, &nn);
        for(n = 0, m = mons; m; m = m->next, n++);
        /* only consider unique geometries as separate screens */
        if(!(unique = (XineramaScreenInfo *)malloc(sizeof(XineramaScreenInfo) * nn)))
            die("fatal: could not malloc() %u bytes\n", sizeof(XineramaScreenInfo) * nn);
        for(i = 0, j = 0; i < nn; i++)
            if(isuniquegeom(unique, j, &info[i]))
                memcpy(&unique[j++], &info[i], sizeof(XineramaScreenInfo));
        XFree(info);
        nn = j;
        if(n <= nn) {
            for(i = 0; i < (nn - n); i++) { /* new monitors available */
                for(m = mons; m && m->next; m = m->next);
                if(m)
                    m->next = createmon();
                else
                    mons = createmon();
            }
            for(i = 0, m = mons; i < nn && m; m = m->next, i++)
                if(i >= n
                || (unique[i].x_org != m->mx || unique[i].y_org != m->my
                    || unique[i].width != m->mw || unique[i].height != m->mh))
                {
                    dirty = True;
                    m->num = i;
                    m->mx = m->wx = unique[i].x_org;
                    m->my = m->wy = unique[i].y_org;
                    m->mw = m->ww = unique[i].width;
                    m->mh = m->wh = unique[i].height;
                    updatebarpos(m);
                }
        }
        else { /* less monitors available nn < n */
            for(i = nn; i < n; i++) {
                for(m = mons; m && m->next; m = m->next);
                while(m->clients) {
                    dirty = True;
                    c = m->clients;
                    m->clients = c->next;
                    detachstack(c);
                    c->mon = mons;
                    attach(c);
                    attachstack(c);
                }
                if(m == selmon)
                    selmon = mons;
                cleanupmon(m);
            }
        }
        free(unique);
    }
    else
#endif /* XINERAMA */
    /* default monitor setup */
    {
        if(!mons)
            mons = createmon();
        if(mons->mw != sw || mons->mh != sh) {
            dirty = True;
            mons->mw = mons->ww = sw;
            mons->mh = mons->wh = sh;
            updatebarpos(mons);
        }
    }
    if(dirty) {
        selmon = mons;
        selmon = wintomon(root);
    }
    return dirty;
}

void
updatenumlockmask(void) {
    unsigned int i, j;
    XModifierKeymap *modmap;

    numlockmask = 0;
    modmap = XGetModifierMapping(dpy);
    for(i = 0; i < 8; i++)
        for(j = 0; j < modmap->max_keypermod; j++)
            if(modmap->modifiermap[i * modmap->max_keypermod + j]
               == XKeysymToKeycode(dpy, XK_Num_Lock))
                numlockmask = (1 << i);
    XFreeModifiermap(modmap);
}

void
updatesizehints(Client *c) {
    long msize;
    XSizeHints size;

    if(!XGetWMNormalHints(dpy, c->win, &size, &msize))
        /* size is uninitialized, ensure that size.flags aren't used */
        size.flags = PSize;
    if(size.flags & PBaseSize) {
        c->basew = size.base_width;
        c->baseh = size.base_height;
    }
    else if(size.flags & PMinSize) {
        c->basew = size.min_width;
        c->baseh = size.min_height;
    }
    else
        c->basew = c->baseh = 0;
    if(size.flags & PResizeInc) {
        c->incw = size.width_inc;
        c->inch = size.height_inc;
    }
    else
        c->incw = c->inch = 0;
    if(size.flags & PMaxSize) {
        c->maxw = size.max_width;
        c->maxh = size.max_height;
    }
    else
        c->maxw = c->maxh = 0;
    if(size.flags & PMinSize) {
        c->minw = size.min_width;
        c->minh = size.min_height;
    }
    else if(size.flags & PBaseSize) {
        c->minw = size.base_width;
        c->minh = size.base_height;
    }
    else
        c->minw = c->minh = 0;
    if(size.flags & PAspect) {
        c->mina = (float)size.min_aspect.y / size.min_aspect.x;
        c->maxa = (float)size.max_aspect.x / size.max_aspect.y;
    }
    else
        c->maxa = c->mina = 0.0;
    c->isfixed = (c->maxw && c->minw && c->maxh && c->minh
                 && c->maxw == c->minw && c->maxh == c->minh);
}

void
updatetitle(Client *c) {
    if(!gettextprop(c->win, netatom[NetWMName], c->name, sizeof c->name))
        gettextprop(c->win, XA_WM_NAME, c->name, sizeof c->name);
    if(c->name[0] == '\0') /* hack to mark broken clients */
        strcpy(c->name, broken);
}

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

void
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) ? True : False;
        XFree(wmh);
    }
}

void
view(const Arg *arg) {
    unsigned int i;

    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;
        selmon->prevtag = selmon->curtag;
        if(arg->ui == ~0)
            selmon->curtag = 0;
        else {
            for (i=0; !(arg->ui & 1 << i); i++);
            selmon->curtag = i + 1;
        }
    } else {
        selmon->prevtag= selmon->curtag ^ selmon->prevtag;
        selmon->curtag^= selmon->prevtag;
        selmon->prevtag= selmon->curtag ^ selmon->prevtag;
    }
    selmon->lt[selmon->sellt] = selmon->lts[selmon->curtag];
    arrange(selmon);
}

Client *
wintoclient(Window w) {
    Client *c;
    Monitor *m;

    for(m = mons; m; m = m->next)
        for(c = m->clients; c; c = c->next)
            if(c->win == w)
                return c;
    return NULL;
}

Monitor *
wintomon(Window w) {
    int x, y;
    Client *c;
    Monitor *m;

    if(w == root && getrootptr(&x, &y))
        return ptrtomon(x, y);
    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) {
    otherwm = True;
    return -1;
}

void
zoom(const Arg *arg) {
    Client *c = selmon->sel;

    if(!selmon->lt[selmon->sellt]->arrange
    || selmon->lt[selmon->sellt]->arrange == monocle
    || (selmon->sel && selmon->sel->isfloating))
        return;
    if(c == nexttiled(selmon->clients))
        if(!c || !(c = nexttiled(c->next)))
            return;
    detach(c);
    attach(c);
    focus(c);
    arrange(c->mon);
}

int
main(int argc, char *argv[]) {
    if(argc == 2 && !strcmp("-v", argv[1]))
        die("dwm-"VERSION", © 2006-2010 dwm engineers, see LICENSE for details\n");
    else if(argc != 1)
        die("usage: dwm [-v]\n");
    if(!setlocale(LC_CTYPE, "") || !XSupportsLocale())
        fputs("warning: no locale support\n", stderr);
    if(!(dpy = XOpenDisplay(NULL)))
        die("dwm: cannot open display\n");
    checkotherwm();
    setup();
    scan();
    run();
    cleanup();
    XCloseDisplay(dpy);
    return 0;
}

?
I applied the patch by hand, so I must have done something wrong?

Last edited by el mariachi (2011-05-17 18:41:26)

JokerBoy · 2011-05-17 19:21:29

add "static Bool useicons = True; /* False means use ascii symbols */" to your config.h file.

Shinryuu · 2011-05-25 14:07:47

Anyone familiar with adding some extra space to the bottom of the screen? I'm curious to know what I should change from dwm.c file.. at least I got a clue it might be related to "setup();" value

Arch Linux

#176 2011-03-16 12:51:23

Re: DWM Hackers Unite! Share (or request) dwm patches.

#177 2011-03-17 17:44:34

Re: DWM Hackers Unite! Share (or request) dwm patches.

#178 2011-03-22 22:26:40

Re: DWM Hackers Unite! Share (or request) dwm patches.

#179 2011-03-22 22:33:12

Re: DWM Hackers Unite! Share (or request) dwm patches.

#180 2011-04-01 17:31:51

Re: DWM Hackers Unite! Share (or request) dwm patches.

#181 2011-04-02 04:50:11

Re: DWM Hackers Unite! Share (or request) dwm patches.

#182 2011-04-10 11:13:59

Re: DWM Hackers Unite! Share (or request) dwm patches.

#183 2011-04-10 11:31:44

Re: DWM Hackers Unite! Share (or request) dwm patches.

#184 2011-04-15 04:42:02

Re: DWM Hackers Unite! Share (or request) dwm patches.

#185 2011-04-15 14:41:42

Re: DWM Hackers Unite! Share (or request) dwm patches.

#186 2011-04-15 19:25:07

Re: DWM Hackers Unite! Share (or request) dwm patches.

#187 2011-04-16 16:36:14

Re: DWM Hackers Unite! Share (or request) dwm patches.

#188 2011-04-18 08:26:57

Re: DWM Hackers Unite! Share (or request) dwm patches.

#189 2011-04-18 20:53:29

Re: DWM Hackers Unite! Share (or request) dwm patches.

#190 2011-04-21 18:59:15

Re: DWM Hackers Unite! Share (or request) dwm patches.

#191 2011-04-26 12:43:38

Re: DWM Hackers Unite! Share (or request) dwm patches.

#192 2011-04-26 15:01:13

Re: DWM Hackers Unite! Share (or request) dwm patches.

#193 2011-04-26 15:13:03

Re: DWM Hackers Unite! Share (or request) dwm patches.

#194 2011-04-29 19:53:06

Re: DWM Hackers Unite! Share (or request) dwm patches.

#195 2011-04-30 09:48:17

Re: DWM Hackers Unite! Share (or request) dwm patches.

#196 2011-05-13 14:52:36

Re: DWM Hackers Unite! Share (or request) dwm patches.

#197 2011-05-17 16:00:02

Re: DWM Hackers Unite! Share (or request) dwm patches.

#198 2011-05-17 18:37:06

Re: DWM Hackers Unite! Share (or request) dwm patches.

#199 2011-05-17 19:21:29

Re: DWM Hackers Unite! Share (or request) dwm patches.

#200 2011-05-25 14:07:47

Re: DWM Hackers Unite! Share (or request) dwm patches.

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