merged Christof Musik's Xinerama support patches, though this needs some polishing!

[dwm.git] / dwm.c

diff --git a/dwm.c b/dwm.c
index 8762269..b1a192d 100644 (file)
--- a/dwm.c
+++ b/dwm.c
@@ -17,9 +17,7 @@
  * set the override_redirect flag.  Clients are organized in a global
  * doubly-linked client list, the focus history is remembered through a global
  * stack list. Each client contains an array of Bools of the same size as the
  * set the override_redirect flag.  Clients are organized in a global
  * doubly-linked client list, the focus history is remembered through a global
  * stack list. Each client contains an array of Bools of the same size as the

- * global tags array to indicate the tags of a client.  For each client dwm
- * creates a small title window, which is resized whenever the (_NET_)WM_NAME
- * properties are updated or the client is moved/resized.
+ * global tags array to indicate the tags of a client.  

  *
  * Keys and tagging rules are organized as arrays and defined in config.h.
  *
  *
  * Keys and tagging rules are organized as arrays and defined in config.h.
  *


@@ -27,26 +25,33 @@
  */
 #include <errno.h>
 #include <locale.h>
  */
 #include <errno.h>
 #include <locale.h>

-#include <regex.h>

 #include <stdarg.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
 #include <sys/select.h>
 #include <stdarg.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
 #include <sys/select.h>

+#include <sys/types.h>

 #include <sys/wait.h>
 #include <sys/wait.h>

+#include <regex.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/cursorfont.h>
 #include <X11/keysym.h>
 #include <X11/Xatom.h>
 #include <X11/Xlib.h>
 #include <X11/Xproto.h>
 #include <X11/Xutil.h>

+//#ifdef XINERAMA
+#include <X11/extensions/Xinerama.h>
+//#endif

 
 /* macros */
 #define BUTTONMASK             (ButtonPressMask | ButtonReleaseMask)
 #define CLEANMASK(mask)                (mask & ~(numlockmask | LockMask))
 
 /* macros */
 #define BUTTONMASK             (ButtonPressMask | ButtonReleaseMask)
 #define CLEANMASK(mask)                (mask & ~(numlockmask | LockMask))

+#define LENGTH(x)              (sizeof x / sizeof x[0])
+#define MAXTAGLEN              16

 #define MOUSEMASK              (BUTTONMASK | PointerMotionMask)
 
 #define MOUSEMASK              (BUTTONMASK | PointerMotionMask)
 

+

 /* enums */
 enum { BarTop, BarBot, BarOff };                       /* bar position */
 enum { CurNormal, CurResize, CurMove, CurLast };       /* cursor */
 /* enums */
 enum { BarTop, BarBot, BarOff };                       /* bar position */
 enum { CurNormal, CurResize, CurMove, CurLast };       /* cursor */


@@ -59,17 +64,17 @@ typedef struct Client Client;
 struct Client {
        char name[256];
        int x, y, w, h;
 struct Client {
        char name[256];
        int x, y, w, h;

-       int rx, ry, rw, rh; /* revert geometry */

        int basew, baseh, incw, inch, maxw, maxh, minw, minh;
        int minax, maxax, minay, maxay;
        int basew, baseh, incw, inch, maxw, maxh, minw, minh;
        int minax, maxax, minay, maxay;

-       long flags; 
+       long flags;

        unsigned int border, oldborder;
        unsigned int border, oldborder;

-       Bool isbanned, isfixed, ismax, isfloating, wasfloating;
+       Bool isbanned, isfixed, isfloating;

        Bool *tags;
        Client *next;
        Client *prev;
        Client *snext;
        Window win;
        Bool *tags;
        Client *next;
        Client *prev;
        Client *snext;
        Window win;

+       int monitor;

 };
 
 typedef struct {
 };
 
 typedef struct {


@@ -103,6 +108,7 @@ typedef struct {
        const char *prop;
        const char *tags;
        Bool isfloating;
        const char *prop;
        const char *tags;
        Bool isfloating;

+       int monitor;

 } Rule;
 
 typedef struct {
 } Rule;
 
 typedef struct {


@@ -110,7 +116,18 @@ typedef struct {
        regex_t *tagregex;
 } Regs;
 
        regex_t *tagregex;
 } Regs;
 

-/* forward declarations */
+typedef struct {
+       int id;
+       Window barwin;
+       int sx, sy, sw, sh, wax, way, wah, waw;
+       DC dc;
+       Bool *seltags;
+       Bool *prevtags;
+       Layout *layout;
+       double mwfact;
+} Monitor;
+
+/* function declarations */

 void applyrules(Client *c);
 void arrange(void);
 void attach(Client *c);
 void applyrules(Client *c);
 void arrange(void);
 void attach(Client *c);


@@ -127,14 +144,15 @@ void destroynotify(XEvent *e);
 void detach(Client *c);
 void detachstack(Client *c);
 void drawbar(void);
 void detach(Client *c);
 void detachstack(Client *c);
 void drawbar(void);

-void drawsquare(Bool filled, Bool empty, unsigned long col[ColLast]);
-void drawtext(const char *text, unsigned long col[ColLast]);
+void drawsquare(Monitor *, Bool filled, Bool empty, unsigned long col[ColLast]);
+void drawtext(Monitor *, const char *text, unsigned long col[ColLast]);

 void *emallocz(unsigned int size);
 void enternotify(XEvent *e);
 void eprint(const char *errstr, ...);
 void expose(XEvent *e);
 void floating(void); /* default floating layout */
 void focus(Client *c);
 void *emallocz(unsigned int size);
 void enternotify(XEvent *e);
 void eprint(const char *errstr, ...);
 void expose(XEvent *e);
 void floating(void); /* default floating layout */
 void focus(Client *c);

+void focusin(XEvent *e);

 void focusnext(const char *arg);
 void focusprev(const char *arg);
 Client *getclient(Window w);
 void focusnext(const char *arg);
 void focusprev(const char *arg);
 Client *getclient(Window w);


@@ -142,22 +160,24 @@ unsigned long getcolor(const char *colstr);
 long getstate(Window w);
 Bool gettextprop(Window w, Atom atom, char *text, unsigned int size);
 void grabbuttons(Client *c, Bool focused);
 long getstate(Window w);
 Bool gettextprop(Window w, Atom atom, char *text, unsigned int size);
 void grabbuttons(Client *c, Bool focused);

+void grabkeys(void);

 unsigned int idxoftag(const char *tag);
 unsigned int idxoftag(const char *tag);

-void initfont(const char *fontstr);
-Bool isarrange(void (*func)());
-Bool isoccupied(unsigned int t);
+void initfont(Monitor*, const char *fontstr);
+Bool isoccupied(Monitor *m, unsigned int t);

 Bool isprotodel(Client *c);
 Bool isprotodel(Client *c);

-Bool isvisible(Client *c);
+Bool isvisible(Client *c, Monitor *m);

 void keypress(XEvent *e);
 void killclient(const char *arg);
 void leavenotify(XEvent *e);
 void manage(Window w, XWindowAttributes *wa);
 void mappingnotify(XEvent *e);
 void maprequest(XEvent *e);
 void keypress(XEvent *e);
 void killclient(const char *arg);
 void leavenotify(XEvent *e);
 void manage(Window w, XWindowAttributes *wa);
 void mappingnotify(XEvent *e);
 void maprequest(XEvent *e);

+void maximize(const char *arg);

 void movemouse(Client *c);
 void movemouse(Client *c);

-Client *nexttiled(Client *c);
+Client *nexttiled(Client *c, Monitor *m);

 void propertynotify(XEvent *e);
 void quit(const char *arg);
 void propertynotify(XEvent *e);
 void quit(const char *arg);

+void reapply(const char *arg);

 void resize(Client *c, int x, int y, int w, int h, Bool sizehints);
 void resizemouse(Client *c);
 void restack(void);
 void resize(Client *c, int x, int y, int w, int h, Bool sizehints);
 void resizemouse(Client *c);
 void restack(void);


@@ -169,36 +189,37 @@ void setmwfact(const char *arg);
 void setup(void);
 void spawn(const char *arg);
 void tag(const char *arg);
 void setup(void);
 void spawn(const char *arg);
 void tag(const char *arg);

-unsigned int textnw(const char *text, unsigned int len);
-unsigned int textw(const char *text);
+unsigned int textnw(Monitor*, const char *text, unsigned int len);
+unsigned int textw(Monitor*, const char *text);

 void tile(void);
 void togglebar(const char *arg);
 void togglefloating(const char *arg);
 void tile(void);
 void togglebar(const char *arg);
 void togglefloating(const char *arg);

-void togglemax(const char *arg);

 void toggletag(const char *arg);
 void toggleview(const char *arg);
 void unban(Client *c);
 void unmanage(Client *c);
 void unmapnotify(XEvent *e);
 void toggletag(const char *arg);
 void toggleview(const char *arg);
 void unban(Client *c);
 void unmanage(Client *c);
 void unmapnotify(XEvent *e);

-void updatebarpos(void);
+void updatebarpos(Monitor *s);

 void updatesizehints(Client *c);
 void updatetitle(Client *c);
 void view(const char *arg);
 void updatesizehints(Client *c);
 void updatetitle(Client *c);
 void view(const char *arg);

+void viewprevtag(const char *arg);     /* views previous selected tags */

 int xerror(Display *dpy, XErrorEvent *ee);
 int xerrordummy(Display *dsply, XErrorEvent *ee);
 int xerrorstart(Display *dsply, XErrorEvent *ee);
 void zoom(const char *arg);
 int xerror(Display *dpy, XErrorEvent *ee);
 int xerrordummy(Display *dsply, XErrorEvent *ee);
 int xerrorstart(Display *dsply, XErrorEvent *ee);
 void zoom(const char *arg);

+int monitorat(int, int);
+void movetomonitor(const char *arg);
+void selectmonitor(const char *arg);

 
 /* variables */
 char stext[256];
 
 /* variables */
 char stext[256];

-double mwfact;
-int screen, sx, sy, sw, sh, wax, way, waw, wah;
+int mcount, screen;
+//double mwfact;
+//int screen, sx, sy, sw, sh, wax, way, waw, wah;

 int (*xerrorxlib)(Display *, XErrorEvent *);
 int (*xerrorxlib)(Display *, XErrorEvent *);

-unsigned int bh, bpos, ntags;
+unsigned int bh, bpos;

 unsigned int blw = 0;
 unsigned int blw = 0;

-unsigned int ltidx = 0; /* default */
-unsigned int nlayouts = 0;
-unsigned int nrules = 0;

 unsigned int numlockmask = 0;
 void (*handler[LASTEvent]) (XEvent *) = {
        [ButtonPress] = buttonpress,
 unsigned int numlockmask = 0;
 void (*handler[LASTEvent]) (XEvent *) = {
        [ButtonPress] = buttonpress,


@@ -206,38 +227,47 @@ void (*handler[LASTEvent]) (XEvent *) = {
        [ConfigureNotify] = configurenotify,
        [DestroyNotify] = destroynotify,
        [EnterNotify] = enternotify,
        [ConfigureNotify] = configurenotify,
        [DestroyNotify] = destroynotify,
        [EnterNotify] = enternotify,

-       [LeaveNotify] = leavenotify,

        [Expose] = expose,
        [Expose] = expose,

+       [FocusIn] = focusin,

        [KeyPress] = keypress,
        [KeyPress] = keypress,

+       [LeaveNotify] = leavenotify,

        [MappingNotify] = mappingnotify,
        [MapRequest] = maprequest,
        [PropertyNotify] = propertynotify,
        [UnmapNotify] = unmapnotify
 };
 Atom wmatom[WMLast], netatom[NetLast];
        [MappingNotify] = mappingnotify,
        [MapRequest] = maprequest,
        [PropertyNotify] = propertynotify,
        [UnmapNotify] = unmapnotify
 };
 Atom wmatom[WMLast], netatom[NetLast];

+Bool domwfact = True;
+Bool dozoom = True;

 Bool otherwm, readin;
 Bool running = True;
 Bool otherwm, readin;
 Bool running = True;

-Bool *seltags;
-Bool selscreen = True;
+//Bool selscreen = True;

 Client *clients = NULL;
 Client *sel = NULL;
 Client *stack = NULL;
 Cursor cursor[CurLast];
 Display *dpy;
 DC dc = {0};
 Client *clients = NULL;
 Client *sel = NULL;
 Client *stack = NULL;
 Cursor cursor[CurLast];
 Display *dpy;
 DC dc = {0};

-Window barwin, root;
+Window root;
+//Layout *layout = NULL;
+//Window barwin, root;

 Regs *regs = NULL;
 Regs *regs = NULL;

+Monitor *monitors;
+int selmonitor = 0;

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

-/* functions*/
+//Bool prevtags[LENGTH(tags)];
+
+/* function implementations */

 void
 applyrules(Client *c) {
        static char buf[512];
        unsigned int i, j;
        regmatch_t tmp;
 void
 applyrules(Client *c) {
        static char buf[512];
        unsigned int i, j;
        regmatch_t tmp;

-       Bool matched = False;
+       Bool matched_tag = False;
+       Bool matched_monitor = False;

        XClassHint ch = { 0 };
 
        /* rule matching */
        XClassHint ch = { 0 };
 
        /* rule matching */


@@ -245,12 +275,17 @@ applyrules(Client *c) {
        snprintf(buf, sizeof buf, "%s:%s:%s",
                        ch.res_class ? ch.res_class : "",
                        ch.res_name ? ch.res_name : "", c->name);
        snprintf(buf, sizeof buf, "%s:%s:%s",
                        ch.res_class ? ch.res_class : "",
                        ch.res_name ? ch.res_name : "", c->name);

-       for(i = 0; i < nrules; i++)
+       for(i = 0; i < LENGTH(rules); i++)

                if(regs[i].propregex && !regexec(regs[i].propregex, buf, 1, &tmp, 0)) {
                if(regs[i].propregex && !regexec(regs[i].propregex, buf, 1, &tmp, 0)) {

+                       if (rules[i].monitor >= 0 && rules[i].monitor < mcount) {
+                               matched_monitor = True;
+                               c->monitor = rules[i].monitor;
+                       }
+

                        c->isfloating = rules[i].isfloating;
                        c->isfloating = rules[i].isfloating;

-                       for(j = 0; regs[i].tagregex && j < ntags; j++) {
+                       for(j = 0; regs[i].tagregex && j < LENGTH(tags); j++) {

                                if(!regexec(regs[i].tagregex, tags[j], 1, &tmp, 0)) {
                                if(!regexec(regs[i].tagregex, tags[j], 1, &tmp, 0)) {

-                                       matched = True;
+                                       matched_tag = True;

                                        c->tags[j] = True;
                                }
                        }
                                        c->tags[j] = True;
                                }
                        }


@@ -259,9 +294,10 @@ applyrules(Client *c) {
                XFree(ch.res_class);
        if(ch.res_name)
                XFree(ch.res_name);
                XFree(ch.res_class);
        if(ch.res_name)
                XFree(ch.res_name);

-       if(!matched)
-               for(i = 0; i < ntags; i++)
-                       c->tags[i] = seltags[i];
+       if(!matched_tag)
+               memcpy(c->tags, monitors[monitorat(-1, -1)].seltags, sizeof seltags);
+       if (!matched_monitor)
+               c->monitor = monitorat(-1, -1);

 }
 
 void
 }
 
 void


@@ -269,11 +305,12 @@ arrange(void) {
        Client *c;
 
        for(c = clients; c; c = c->next)
        Client *c;
 
        for(c = clients; c; c = c->next)

-               if(isvisible(c))
+               if(isvisible(c, &monitors[c->monitor]))

                        unban(c);
                else
                        ban(c);
                        unban(c);
                else
                        ban(c);

-       layouts[ltidx].arrange();
+
+       monitors[selmonitor].layout->arrange();

        focus(NULL);
        restack();
 }
        focus(NULL);
        restack();
 }


@@ -296,7 +333,7 @@ void
 ban(Client *c) {
        if(c->isbanned)
                return;
 ban(Client *c) {
        if(c->isbanned)
                return;

-       XMoveWindow(dpy, c->win, c->x + 2 * sw, c->y);
+       XMoveWindow(dpy, c->win, c->x + 3 * monitors[c->monitor].sw, c->y);

        c->isbanned = True;
 }
 
        c->isbanned = True;
 }
 


@@ -306,10 +343,12 @@ buttonpress(XEvent *e) {
        Client *c;
        XButtonPressedEvent *ev = &e->xbutton;
 
        Client *c;
        XButtonPressedEvent *ev = &e->xbutton;
 

-       if(barwin == ev->window) {
+       Monitor s = monitors[monitorat(-1, -1)];
+
+       if(ev->window == s.barwin) {

                x = 0;
                x = 0;

-               for(i = 0; i < ntags; i++) {
-                       x += textw(tags[i]);
+               for(i = 0; i < LENGTH(tags); i++) {
+                       x += textw(&s, tags[i]);

                        if(ev->x < x) {
                                if(ev->button == Button1) {
                                        if(ev->state & MODKEY)
                        if(ev->x < x) {
                                if(ev->button == Button1) {
                                        if(ev->state & MODKEY)


@@ -334,20 +373,20 @@ buttonpress(XEvent *e) {
                if(CLEANMASK(ev->state) != MODKEY)
                        return;
                if(ev->button == Button1) {
                if(CLEANMASK(ev->state) != MODKEY)
                        return;
                if(ev->button == Button1) {

-                       if(isarrange(floating) || c->isfloating)
+                       if((s.layout->arrange == floating) || c->isfloating)

                                restack();
                        else
                                togglefloating(NULL);
                        movemouse(c);
                }
                else if(ev->button == Button2) {
                                restack();
                        else
                                togglefloating(NULL);
                        movemouse(c);
                }
                else if(ev->button == Button2) {

-                       if(isarrange(tile) && !c->isfixed && c->isfloating)
+                       if((floating != s.layout->arrange) && c->isfloating)

                                togglefloating(NULL);
                        else
                                zoom(NULL);
                }
                else if(ev->button == Button3 && !c->isfixed) {
                                togglefloating(NULL);
                        else
                                zoom(NULL);
                }
                else if(ev->button == Button3 && !c->isfixed) {

-                       if(isarrange(floating) || c->isfloating)
+                       if((floating == s.layout->arrange) || c->isfloating)

                                restack();
                        else
                                togglefloating(NULL);
                                restack();
                        else
                                togglefloating(NULL);


@@ -374,25 +413,28 @@ checkotherwm(void) {
 
 void
 cleanup(void) {
 
 void
 cleanup(void) {

+       unsigned int i;

        close(STDIN_FILENO);
        while(stack) {
                unban(stack);
                unmanage(stack);
        }
        close(STDIN_FILENO);
        while(stack) {
                unban(stack);
                unmanage(stack);
        }

-       if(dc.font.set)
-               XFreeFontSet(dpy, dc.font.set);
-       else
-               XFreeFont(dpy, dc.font.xfont);
-       XUngrabKey(dpy, AnyKey, AnyModifier, root);
-       XFreePixmap(dpy, dc.drawable);
-       XFreeGC(dpy, dc.gc);
-       XDestroyWindow(dpy, barwin);
-       XFreeCursor(dpy, cursor[CurNormal]);
-       XFreeCursor(dpy, cursor[CurResize]);
-       XFreeCursor(dpy, cursor[CurMove]);
-       XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
-       XSync(dpy, False);
-       free(seltags);
+       for(i = 0; i < mcount; i++) {
+               Monitor *m = &monitors[i];
+               if(m->dc.font.set)
+                       XFreeFontSet(dpy, m->dc.font.set);
+               else
+                       XFreeFont(dpy, m->dc.font.xfont);
+               XUngrabKey(dpy, AnyKey, AnyModifier, root);
+               XFreePixmap(dpy, m->dc.drawable);
+               XFreeGC(dpy, m->dc.gc);
+               XDestroyWindow(dpy, m->barwin);
+               XFreeCursor(dpy, cursor[CurNormal]);
+               XFreeCursor(dpy, cursor[CurResize]);
+               XFreeCursor(dpy, cursor[CurMove]);
+               XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
+               XSync(dpy, False);
+       }

 }
 
 void
 }
 
 void


@@ -402,9 +444,8 @@ compileregs(void) {
 
        if(regs)
                return;
 
        if(regs)
                return;

-       nrules = sizeof rules / sizeof rules[0];
-       regs = emallocz(nrules * sizeof(Regs));
-       for(i = 0; i < nrules; i++) {
+       regs = emallocz(LENGTH(rules) * sizeof(Regs));
+       for(i = 0; i < LENGTH(rules); i++) {

                if(rules[i].prop) {
                        reg = emallocz(sizeof(regex_t));
                        if(regcomp(reg, rules[i].prop, REG_EXTENDED))
                if(rules[i].prop) {
                        reg = emallocz(sizeof(regex_t));
                        if(regcomp(reg, rules[i].prop, REG_EXTENDED))


@@ -443,14 +484,15 @@ configure(Client *c) {
 void
 configurenotify(XEvent *e) {
        XConfigureEvent *ev = &e->xconfigure;
 void
 configurenotify(XEvent *e) {
        XConfigureEvent *ev = &e->xconfigure;

+       Monitor *m = &monitors[selmonitor];

 
 

-       if(ev->window == root && (ev->width != sw || ev->height != sh)) {
-               sw = ev->width;
-               sh = ev->height;
+       if(ev->window == root && (ev->width != m->sw || ev->height != m->sh)) {
+               m->sw = ev->width;
+               m->sh = ev->height;

                XFreePixmap(dpy, dc.drawable);
                XFreePixmap(dpy, dc.drawable);

-               dc.drawable = XCreatePixmap(dpy, root, sw, bh, DefaultDepth(dpy, screen));
-               XResizeWindow(dpy, barwin, sw, bh);
-               updatebarpos();
+               dc.drawable = XCreatePixmap(dpy, root, m->sw, bh, DefaultDepth(dpy, screen));
+               XResizeWindow(dpy, m->barwin, m->sw, bh);
+               updatebarpos(m);

                arrange();
        }
 }
                arrange();
        }
 }


@@ -462,26 +504,26 @@ configurerequest(XEvent *e) {
        XWindowChanges wc;
 
        if((c = getclient(ev->window))) {
        XWindowChanges wc;
 
        if((c = getclient(ev->window))) {

-               c->ismax = False;
+               Monitor *m = &monitors[c->monitor];

                if(ev->value_mask & CWBorderWidth)
                        c->border = ev->border_width;
                if(ev->value_mask & CWBorderWidth)
                        c->border = ev->border_width;

-               if(c->isfixed || c->isfloating || isarrange(floating)) {
+               if(c->isfixed || c->isfloating || (floating == m->layout->arrange)) {

                        if(ev->value_mask & CWX)
                        if(ev->value_mask & CWX)

-                               c->x = ev->x;
+                               c->x = m->sx+ev->x;

                        if(ev->value_mask & CWY)
                        if(ev->value_mask & CWY)

-                               c->y = ev->y;
+                               c->y = m->sy+ev->y;

                        if(ev->value_mask & CWWidth)
                                c->w = ev->width;
                        if(ev->value_mask & CWHeight)
                                c->h = ev->height;
                        if(ev->value_mask & CWWidth)
                                c->w = ev->width;
                        if(ev->value_mask & CWHeight)
                                c->h = ev->height;

-                       if((c->x + c->w) > sw && c->isfloating)
-                               c->x = sw / 2 - c->w / 2; /* center in x direction */
-                       if((c->y + c->h) > sh && c->isfloating)
-                               c->y = sh / 2 - c->h / 2; /* center in y direction */
+                       if((c->x - m->sx + c->w) > m->sw && c->isfloating)
+                               c->x = m->sx + (m->sw / 2 - c->w / 2); /* center in x direction */
+                       if((c->y - m->sy + c->h) > m->sh && c->isfloating)
+                               c->y = m->sy + (m->sh / 2 - c->h / 2); /* center in y direction */

                        if((ev->value_mask & (CWX | CWY))
                        && !(ev->value_mask & (CWWidth | CWHeight)))
                                configure(c);
                        if((ev->value_mask & (CWX | CWY))
                        && !(ev->value_mask & (CWWidth | CWHeight)))
                                configure(c);

-                       if(isvisible(c))
+                       if(isvisible(c, &monitors[monitorat(-1,-1)]))

                                XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h);
                }
                else
                                XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h);
                }
                else


@@ -530,74 +572,77 @@ detachstack(Client *c) {
 
 void
 drawbar(void) {
 
 void
 drawbar(void) {

-       int i, x;
-
-       dc.x = dc.y = 0;
-       for(i = 0; i < ntags; i++) {
-               dc.w = textw(tags[i]);
-               if(seltags[i]) {
-                       drawtext(tags[i], dc.sel);
-                       drawsquare(sel && sel->tags[i], isoccupied(i), dc.sel);
+       int i, x, s;
+
+       for(s = 0; s < mcount; ++s) {
+               Monitor *m = &monitors[s];
+               m->dc.x = 0;
+               for(i = 0; i < LENGTH(tags); i++) {
+                       m->dc.w = textw(m, tags[i]);
+                       if(m->seltags[i]) {
+                               drawtext(m, tags[i], m->dc.sel);
+                               drawsquare(m, sel && sel->tags[i] && sel->monitor == m->id, isoccupied(m, i), m->dc.sel);
+                       }
+                       else {
+                               drawtext(m, tags[i], m->dc.norm);
+                               drawsquare(m, sel && sel->tags[i] && sel->monitor == m->id, isoccupied(m, i), m->dc.norm);
+                       }
+                       m->dc.x += m->dc.w;

                }
                }

-               else {
-                       drawtext(tags[i], dc.norm);
-                       drawsquare(sel && sel->tags[i], isoccupied(i), dc.norm);
+               m->dc.w = blw;
+               drawtext(m, m->layout->symbol, m->dc.norm);
+               x = m->dc.x + m->dc.w;
+               m->dc.w = textw(m, stext);
+               m->dc.x = m->sw - m->dc.w;
+               if(m->dc.x < x) {
+                       m->dc.x = x;
+                       m->dc.w = m->sw - x;

                }
                }

-               dc.x += dc.w;
-       }
-       dc.w = blw;
-       drawtext(layouts[ltidx].symbol, dc.norm);
-       x = dc.x + dc.w;
-       dc.w = textw(stext);
-       dc.x = sw - dc.w;
-       if(dc.x < x) {
-               dc.x = x;
-               dc.w = sw - x;
-       }
-       drawtext(stext, dc.norm);
-       if((dc.w = dc.x - x) > bh) {
-               dc.x = x;
-               if(sel) {
-                       drawtext(sel->name, dc.sel);
-                       drawsquare(sel->ismax, sel->isfloating, dc.sel);
+               drawtext(m, stext, m->dc.norm);
+               if((m->dc.w = m->dc.x - x) > bh) {
+                       m->dc.x = x;
+                       if(sel && sel->monitor == m->id) {
+                               drawtext(m, sel->name, m->dc.sel);
+                               drawsquare(m, False, sel->isfloating, m->dc.sel);
+                       }
+                       else
+                               drawtext(m, NULL, m->dc.norm);

                }
                }

-               else
-                       drawtext(NULL, dc.norm);
+               XCopyArea(dpy, m->dc.drawable, m->barwin, m->dc.gc, 0, 0, m->sw, bh, 0, 0);
+               XSync(dpy, False);

        }
        }

-       XCopyArea(dpy, dc.drawable, barwin, dc.gc, 0, 0, sw, bh, 0, 0);
-       XSync(dpy, False);

 }
 
 void
 }
 
 void

-drawsquare(Bool filled, Bool empty, unsigned long col[ColLast]) {
+drawsquare(Monitor *m, Bool filled, Bool empty, unsigned long col[ColLast]) {

        int x;
        XGCValues gcv;
        int x;
        XGCValues gcv;

-       XRectangle r = { dc.x, dc.y, dc.w, dc.h };
+       XRectangle r = { m->dc.x, m->dc.y, m->dc.w, m->dc.h };

 
        gcv.foreground = col[ColFG];
 
        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;
+       XChangeGC(dpy, m->dc.gc, GCForeground, &gcv);
+       x = (m->dc.font.ascent + m->dc.font.descent + 2) / 4;
+       r.x = m->dc.x + 1;
+       r.y = m->dc.y + 1;

        if(filled) {
                r.width = r.height = x + 1;
        if(filled) {
                r.width = r.height = x + 1;

-               XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
+               XFillRectangles(dpy, m->dc.drawable, m->dc.gc, &r, 1);

        }
        else if(empty) {
                r.width = r.height = x;
        }
        else if(empty) {
                r.width = r.height = x;

-               XDrawRectangles(dpy, dc.drawable, dc.gc, &r, 1);
+               XDrawRectangles(dpy, m->dc.drawable, m->dc.gc, &r, 1);

        }
 }
 
 void
        }
 }
 
 void

-drawtext(const char *text, unsigned long col[ColLast]) {
+drawtext(Monitor *m, const char *text, unsigned long col[ColLast]) {

        int x, y, w, h;
        static char buf[256];
        unsigned int len, olen;
        int x, y, w, h;
        static char buf[256];
        unsigned int len, olen;

-       XRectangle r = { dc.x, dc.y, dc.w, dc.h };
+       XRectangle r = { m->dc.x, m->dc.y, m->dc.w, m->dc.h };

 
 

-       XSetForeground(dpy, dc.gc, col[ColBG]);
-       XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
+       XSetForeground(dpy, m->dc.gc, col[ColBG]);
+       XFillRectangles(dpy, m->dc.drawable, m->dc.gc, &r, 1);

        if(!text)
                return;
        w = 0;
        if(!text)
                return;
        w = 0;


@@ -606,11 +651,11 @@ drawtext(const char *text, unsigned long col[ColLast]) {
                len = sizeof buf - 1;
        memcpy(buf, text, len);
        buf[len] = 0;
                len = sizeof buf - 1;
        memcpy(buf, text, len);
        buf[len] = 0;

-       h = dc.font.ascent + dc.font.descent;
-       y = dc.y + (dc.h / 2) - (h / 2) + dc.font.ascent;
-       x = dc.x + (h / 2);
+       h = m->dc.font.ascent + m->dc.font.descent;
+       y = m->dc.y + (m->dc.h / 2) - (h / 2) + m->dc.font.ascent;
+       x = m->dc.x + (h / 2);

        /* shorten text if necessary */
        /* shorten text if necessary */

-       while(len && (w = textnw(buf, len)) > dc.w - h)
+       while(len && (w = textnw(m, buf, len)) > m->dc.w - h)

                buf[--len] = 0;
        if(len < olen) {
                if(len > 1)
                buf[--len] = 0;
        if(len < olen) {
                if(len > 1)


@@ -620,13 +665,13 @@ drawtext(const char *text, unsigned long col[ColLast]) {
                if(len > 3)
                        buf[len - 3] = '.';
        }
                if(len > 3)
                        buf[len - 3] = '.';
        }

-       if(w > dc.w)
+       if(w > m->dc.w)

                return; /* too long */
                return; /* too long */

-       XSetForeground(dpy, dc.gc, col[ColFG]);
-       if(dc.font.set)
-               XmbDrawString(dpy, dc.drawable, dc.font.set, dc.gc, x, y, buf, len);
+       XSetForeground(dpy, m->dc.gc, col[ColFG]);
+       if(m->dc.font.set)
+               XmbDrawString(dpy, m->dc.drawable, m->dc.font.set, m->dc.gc, x, y, buf, len);

        else
        else

-               XDrawString(dpy, dc.drawable, dc.gc, x, y, buf, len);
+               XDrawString(dpy, m->dc.drawable, m->dc.gc, x, y, buf, len);

 }
 
 void *
 }
 
 void *


@@ -648,7 +693,7 @@ enternotify(XEvent *e) {
        if((c = getclient(ev->window)))
                focus(c);
        else if(ev->window == root) {
        if((c = getclient(ev->window)))
                focus(c);
        else if(ev->window == root) {

-               selscreen = True;
+               selmonitor = True;

                focus(NULL);
        }
 }
                focus(NULL);
        }
 }


@@ -668,7 +713,7 @@ expose(XEvent *e) {
        XExposeEvent *ev = &e->xexpose;
 
        if(ev->count == 0) {
        XExposeEvent *ev = &e->xexpose;
 
        if(ev->count == 0) {

-               if(barwin == ev->window)
+               if(ev->window == monitors[selmonitor].barwin)

                        drawbar();
        }
 }
                        drawbar();
        }
 }


@@ -677,18 +722,20 @@ void
 floating(void) { /* default floating layout */
        Client *c;
 
 floating(void) { /* default floating layout */
        Client *c;
 

+       domwfact = dozoom = False;

        for(c = clients; c; c = c->next)
        for(c = clients; c; c = c->next)

-               if(isvisible(c))
+               if(isvisible(c, &monitors[selmonitor]))

                        resize(c, c->x, c->y, c->w, c->h, True);
 }
 
 void
 focus(Client *c) {
                        resize(c, c->x, c->y, c->w, c->h, True);
 }
 
 void
 focus(Client *c) {

-       if((!c && selscreen) || (c && !isvisible(c)))
-               for(c = stack; c && !isvisible(c); c = c->snext);
+       Monitor *m = &monitors[monitorat(-1, -1)];
+       if(!c || (c && !isvisible(c, m)))
+               for(c = stack; c && !isvisible(c, m); c = c->snext);

        if(sel && sel != c) {
                grabbuttons(sel, False);
        if(sel && sel != c) {
                grabbuttons(sel, False);

-               XSetWindowBorder(dpy, sel->win, dc.norm[ColBorder]);
+               XSetWindowBorder(dpy, sel->win, monitors[sel->monitor].dc.norm[ColBorder]);

        }
        if(c) {
                detachstack(c);
        }
        if(c) {
                detachstack(c);


@@ -697,25 +744,35 @@ focus(Client *c) {
        }
        sel = c;
        drawbar();
        }
        sel = c;
        drawbar();

-       if(!selscreen)
-               return;

        if(c) {
        if(c) {

-               XSetWindowBorder(dpy, c->win, dc.sel[ColBorder]);
+               XSetWindowBorder(dpy, c->win, monitors[c->monitor].dc.sel[ColBorder]);

                XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime);
                XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime);

+               selmonitor = monitorat(c->x, c->y);

        }
        }

-       else
+       else {

                XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
                XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);

+               selmonitor = monitorat(-1, -1);
+       }
+}
+
+void
+focusin(XEvent *e) { /* there are some broken focus acquiring clients */
+       XFocusChangeEvent *ev = &e->xfocus;
+
+       if(sel && ev->window != sel->win)
+               XSetInputFocus(dpy, sel->win, RevertToPointerRoot, CurrentTime);

 }
 
 void
 focusnext(const char *arg) {
        Client *c;
 }
 
 void
 focusnext(const char *arg) {
        Client *c;

+       Monitor *m = &monitors[selmonitor];

 
        if(!sel)
                return;
 
        if(!sel)
                return;

-       for(c = sel->next; c && !isvisible(c); c = c->next);
+       for(c = sel->next; c && !isvisible(c, m); c = c->next);

        if(!c)
        if(!c)

-               for(c = clients; c && !isvisible(c); c = c->next);
+               for(c = clients; c && !isvisible(c, m); c = c->next);

        if(c) {
                focus(c);
                restack();
        if(c) {
                focus(c);
                restack();


@@ -725,13 +782,14 @@ focusnext(const char *arg) {
 void
 focusprev(const char *arg) {
        Client *c;
 void
 focusprev(const char *arg) {
        Client *c;

+       Monitor *m = &monitors[selmonitor];

 
        if(!sel)
                return;
 
        if(!sel)
                return;

-       for(c = sel->prev; c && !isvisible(c); c = c->prev);
+       for(c = sel->prev; c && !isvisible(c, m); c = c->prev);

        if(!c) {
                for(c = clients; c && c->next; c = c->next);
        if(!c) {
                for(c = clients; c && c->next; c = c->next);

-               for(; c && !isvisible(c); c = c->prev);
+               for(; c && !isvisible(c, m); c = c->prev);

        }
        if(c) {
                focus(c);
        }
        if(c) {
                focus(c);


@@ -791,8 +849,7 @@ gettextprop(Window w, Atom atom, char *text, unsigned int size) {
                strncpy(text, (char *)name.value, size - 1);
        else {
                if(XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success
                strncpy(text, (char *)name.value, size - 1);
        else {
                if(XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success

-               && n > 0 && *list)
-               {
+               && n > 0 && *list) {

                        strncpy(text, *list, size - 1);
                        XFreeStringList(list);
                }
                        strncpy(text, *list, size - 1);
                        XFreeStringList(list);
                }


@@ -839,70 +896,81 @@ grabbuttons(Client *c, Bool focused) {
                                GrabModeAsync, GrabModeSync, None, None);
 }
 
                                GrabModeAsync, GrabModeSync, None, None);
 }
 

+void
+grabkeys(void)  {
+       unsigned int i;
+       KeyCode code;
+
+       XUngrabKey(dpy, AnyKey, AnyModifier, root);
+       for(i = 0; i < LENGTH(keys); i++) {
+               code = XKeysymToKeycode(dpy, keys[i].keysym);
+               XGrabKey(dpy, code, keys[i].mod, root, True,
+                               GrabModeAsync, GrabModeAsync);
+               XGrabKey(dpy, code, keys[i].mod | LockMask, root, True,
+                               GrabModeAsync, GrabModeAsync);
+               XGrabKey(dpy, code, keys[i].mod | numlockmask, root, True,
+                               GrabModeAsync, GrabModeAsync);
+               XGrabKey(dpy, code, keys[i].mod | numlockmask | LockMask, root, True,
+                               GrabModeAsync, GrabModeAsync);
+       }
+}
+

 unsigned int
 idxoftag(const char *tag) {
        unsigned int i;
 
 unsigned int
 idxoftag(const char *tag) {
        unsigned int i;
 

-       for(i = 0; i < ntags; i++)
-               if(tags[i] == tag)
-                       return i;
-       return 0;
+       for(i = 0; (i < LENGTH(tags)) && (tags[i] != tag); i++);
+       return (i < LENGTH(tags)) ? i : 0;

 }
 
 void
 }
 
 void

-initfont(const char *fontstr) {
+initfont(Monitor *m, const char *fontstr) {

        char *def, **missing;
        int i, n;
 
        missing = NULL;
        char *def, **missing;
        int i, n;
 
        missing = NULL;

-       if(dc.font.set)
-               XFreeFontSet(dpy, dc.font.set);
-       dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def);
+       if(m->dc.font.set)
+               XFreeFontSet(dpy, m->dc.font.set);
+       m->dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def);

        if(missing) {
                while(n--)
                        fprintf(stderr, "dwm: missing fontset: %s\n", missing[n]);
                XFreeStringList(missing);
        }
        if(missing) {
                while(n--)
                        fprintf(stderr, "dwm: missing fontset: %s\n", missing[n]);
                XFreeStringList(missing);
        }

-       if(dc.font.set) {
+       if(m->dc.font.set) {

                XFontSetExtents *font_extents;
                XFontStruct **xfonts;
                char **font_names;
                XFontSetExtents *font_extents;
                XFontStruct **xfonts;
                char **font_names;

-               dc.font.ascent = dc.font.descent = 0;
-               font_extents = XExtentsOfFontSet(dc.font.set);
-               n = XFontsOfFontSet(dc.font.set, &xfonts, &font_names);
-               for(i = 0, dc.font.ascent = 0, dc.font.descent = 0; i < n; i++) {
-                       if(dc.font.ascent < (*xfonts)->ascent)
-                               dc.font.ascent = (*xfonts)->ascent;
-                       if(dc.font.descent < (*xfonts)->descent)
-                               dc.font.descent = (*xfonts)->descent;
+               m->dc.font.ascent = m->dc.font.descent = 0;
+               font_extents = XExtentsOfFontSet(m->dc.font.set);
+               n = XFontsOfFontSet(m->dc.font.set, &xfonts, &font_names);
+               for(i = 0, m->dc.font.ascent = 0, m->dc.font.descent = 0; i < n; i++) {
+                       if(m->dc.font.ascent < (*xfonts)->ascent)
+                               m->dc.font.ascent = (*xfonts)->ascent;
+                       if(m->dc.font.descent < (*xfonts)->descent)
+                               m->dc.font.descent = (*xfonts)->descent;

                        xfonts++;
                }
        }
        else {
                        xfonts++;
                }
        }
        else {

-               if(dc.font.xfont)
-                       XFreeFont(dpy, dc.font.xfont);
-               dc.font.xfont = NULL;
-               if(!(dc.font.xfont = XLoadQueryFont(dpy, fontstr))
-               && !(dc.font.xfont = XLoadQueryFont(dpy, "fixed")))
+               if(m->dc.font.xfont)
+                       XFreeFont(dpy, m->dc.font.xfont);
+               m->dc.font.xfont = NULL;
+               if(!(m->dc.font.xfont = XLoadQueryFont(dpy, fontstr))
+               && !(m->dc.font.xfont = XLoadQueryFont(dpy, "fixed")))

                        eprint("error, cannot load font: '%s'\n", fontstr);
                        eprint("error, cannot load font: '%s'\n", fontstr);

-               dc.font.ascent = dc.font.xfont->ascent;
-               dc.font.descent = dc.font.xfont->descent;
+               m->dc.font.ascent = m->dc.font.xfont->ascent;
+               m->dc.font.descent = m->dc.font.xfont->descent;

        }
        }

-       dc.font.height = dc.font.ascent + dc.font.descent;
-}
-
-Bool
-isarrange(void (*func)())
-{
-       return func == layouts[ltidx].arrange;
+       m->dc.font.height = m->dc.font.ascent + m->dc.font.descent;

 }
 
 Bool
 }
 
 Bool

-isoccupied(unsigned int t) {
+isoccupied(Monitor *m, unsigned int t) {

        Client *c;
 
        for(c = clients; c; c = c->next)
        Client *c;
 
        for(c = clients; c; c = c->next)

-               if(c->tags[t])
+               if(c->tags[t] && c->monitor == m->id)

                        return True;
        return False;
 }
                        return True;
        return False;
 }


@@ -923,42 +991,24 @@ isprotodel(Client *c) {
 }
 
 Bool
 }
 
 Bool

-isvisible(Client *c) {
+isvisible(Client *c, Monitor *m) {

        unsigned int i;
 
        unsigned int i;
 

-       for(i = 0; i < ntags; i++)
-               if(c->tags[i] && seltags[i])
+       for(i = 0; i < LENGTH(tags); i++)
+               if(c->tags[i] && monitors[c->monitor].seltags[i] && m->id == c->monitor)

                        return True;
        return False;
 }
 
 void
 keypress(XEvent *e) {
                        return True;
        return False;
 }
 
 void
 keypress(XEvent *e) {

-       KEYS
-       unsigned int len = sizeof keys / sizeof keys[0];

        unsigned int i;
        unsigned int i;

-       KeyCode code;

        KeySym keysym;
        XKeyEvent *ev;
 
        KeySym keysym;
        XKeyEvent *ev;
 

-       if(!e) { /* grabkeys */
-               XUngrabKey(dpy, AnyKey, AnyModifier, root);
-               for(i = 0; i < len; i++) {
-                       code = XKeysymToKeycode(dpy, keys[i].keysym);
-                       XGrabKey(dpy, code, keys[i].mod, root, True,
-                                       GrabModeAsync, GrabModeAsync);
-                       XGrabKey(dpy, code, keys[i].mod | LockMask, root, True,
-                                       GrabModeAsync, GrabModeAsync);
-                       XGrabKey(dpy, code, keys[i].mod | numlockmask, root, True,
-                                       GrabModeAsync, GrabModeAsync);
-                       XGrabKey(dpy, code, keys[i].mod | numlockmask | LockMask, root, True,
-                                       GrabModeAsync, GrabModeAsync);
-               }
-               return;
-       }

        ev = &e->xkey;
        keysym = XKeycodeToKeysym(dpy, (KeyCode)ev->keycode, 0);
        ev = &e->xkey;
        keysym = XKeycodeToKeysym(dpy, (KeyCode)ev->keycode, 0);

-       for(i = 0; i < len; i++)
+       for(i = 0; i < LENGTH(keys); i++)

                if(keysym == keys[i].keysym
                && CLEANMASK(keys[i].mod) == CLEANMASK(ev->state))
                {
                if(keysym == keys[i].keysym
                && CLEANMASK(keys[i].mod) == CLEANMASK(ev->state))
                {


@@ -991,58 +1041,64 @@ leavenotify(XEvent *e) {
        XCrossingEvent *ev = &e->xcrossing;
 
        if((ev->window == root) && !ev->same_screen) {
        XCrossingEvent *ev = &e->xcrossing;
 
        if((ev->window == root) && !ev->same_screen) {

-               selscreen = False;
+               selmonitor = False;

                focus(NULL);
        }
 }
 
 void
 manage(Window w, XWindowAttributes *wa) {
                focus(NULL);
        }
 }
 
 void
 manage(Window w, XWindowAttributes *wa) {

-       unsigned int i;

        Client *c, *t = NULL;
        Window trans;
        Status rettrans;
        XWindowChanges wc;
 
        c = emallocz(sizeof(Client));
        Client *c, *t = NULL;
        Window trans;
        Status rettrans;
        XWindowChanges wc;
 
        c = emallocz(sizeof(Client));

-       c->tags = emallocz(ntags * sizeof(Bool));
+       c->tags = emallocz(sizeof seltags);

        c->win = w;
        c->win = w;

-       c->x = wa->x;
-       c->y = wa->y;
+
+       applyrules(c);
+       Monitor *m = &monitors[c->monitor];
+
+       c->x = wa->x+m->sx;
+       c->y = wa->y+m->sy;

        c->w = wa->width;
        c->h = wa->height;
        c->oldborder = wa->border_width;
        c->w = wa->width;
        c->h = wa->height;
        c->oldborder = wa->border_width;

-       if(c->w == sw && c->h == sh) {
-               c->x = sx;
-               c->y = sy;
+
+       if (monitorat(c->x, c->y) != c->monitor) {
+               c->x = m->sx;
+               c->y = m->sy;
+       }
+
+       if(c->w == m->sw && c->h == m->sh) {
+               c->x = m->sx;
+               c->y = m->sy;

                c->border = wa->border_width;
        }
        else {
                c->border = wa->border_width;
        }
        else {

-               if(c->x + c->w + 2 * c->border > wax + waw)
-                       c->x = wax + waw - c->w - 2 * c->border;
-               if(c->y + c->h + 2 * c->border > way + wah)
-                       c->y = way + wah - c->h - 2 * c->border;
-               if(c->x < wax)
-                       c->x = wax;
-               if(c->y < way)
-                       c->y = way;
+               if(c->x + c->w + 2 * c->border > m->wax + m->waw)
+                       c->x = m->wax + m->waw - c->w - 2 * c->border;
+               if(c->y + c->h + 2 * c->border > m->way + m->wah)
+                       c->y = m->way + m->wah - c->h - 2 * c->border;
+               if(c->x < m->wax)
+                       c->x = m->wax;
+               if(c->y < m->way)
+                       c->y = m->way;

                c->border = BORDERPX;
        }
        wc.border_width = c->border;
        XConfigureWindow(dpy, w, CWBorderWidth, &wc);
                c->border = BORDERPX;
        }
        wc.border_width = c->border;
        XConfigureWindow(dpy, w, CWBorderWidth, &wc);

-       XSetWindowBorder(dpy, w, dc.norm[ColBorder]);
+       XSetWindowBorder(dpy, w, m->dc.norm[ColBorder]);

        configure(c); /* propagates border_width, if size doesn't change */
        updatesizehints(c);
        configure(c); /* propagates border_width, if size doesn't change */
        updatesizehints(c);

-       XSelectInput(dpy, w,
-               StructureNotifyMask | PropertyChangeMask | EnterWindowMask);
+       XSelectInput(dpy, w, EnterWindowMask | FocusChangeMask | PropertyChangeMask | StructureNotifyMask);

        grabbuttons(c, False);
        updatetitle(c);
        if((rettrans = XGetTransientForHint(dpy, w, &trans) == Success))
                for(t = clients; t && t->win != trans; t = t->next);
        if(t)
        grabbuttons(c, False);
        updatetitle(c);
        if((rettrans = XGetTransientForHint(dpy, w, &trans) == Success))
                for(t = clients; t && t->win != trans; t = t->next);
        if(t)

-               for(i = 0; i < ntags; i++)
-                       c->tags[i] = t->tags[i];
-       applyrules(c);
+               memcpy(c->tags, t->tags, sizeof seltags);

        if(!c->isfloating)
                c->isfloating = (rettrans == Success) || c->isfixed;
        attach(c);
        if(!c->isfloating)
                c->isfloating = (rettrans == Success) || c->isfixed;
        attach(c);


@@ -1060,7 +1116,7 @@ mappingnotify(XEvent *e) {
 
        XRefreshKeyboardMapping(ev);
        if(ev->request == MappingKeyboard)
 
        XRefreshKeyboardMapping(ev);
        if(ev->request == MappingKeyboard)

-               keypress(NULL);
+               grabkeys();

 }
 
 void
 }
 
 void


@@ -1076,6 +1132,15 @@ maprequest(XEvent *e) {
                manage(ev->window, &wa);
 }
 
                manage(ev->window, &wa);
 }
 

+void
+maximize(const char *arg) {
+/*
+       if(!sel || (!sel->isfloating && layout->arrange != floating))
+               return;
+       resize(sel, wax, way, waw - 2 * sel->border, wah - 2 * sel->border, True);
+*/
+}
+

 void
 movemouse(Client *c) {
        int x1, y1, ocx, ocy, di, nx, ny;
 void
 movemouse(Client *c) {
        int x1, y1, ocx, ocy, di, nx, ny;


@@ -1088,7 +1153,6 @@ movemouse(Client *c) {
        if(XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
                        None, cursor[CurMove], CurrentTime) != GrabSuccess)
                return;
        if(XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
                        None, cursor[CurMove], CurrentTime) != GrabSuccess)
                return;

-       c->ismax = False;

        XQueryPointer(dpy, root, &dummy, &dummy, &x1, &y1, &di, &di, &dui);
        for(;;) {
                XMaskEvent(dpy, MOUSEMASK | ExposureMask | SubstructureRedirectMask, &ev);
        XQueryPointer(dpy, root, &dummy, &dummy, &x1, &y1, &di, &di, &dui);
        for(;;) {
                XMaskEvent(dpy, MOUSEMASK | ExposureMask | SubstructureRedirectMask, &ev);


@@ -1105,23 +1169,25 @@ movemouse(Client *c) {
                        XSync(dpy, False);
                        nx = ocx + (ev.xmotion.x - x1);
                        ny = ocy + (ev.xmotion.y - y1);
                        XSync(dpy, False);
                        nx = ocx + (ev.xmotion.x - x1);
                        ny = ocy + (ev.xmotion.y - y1);

-                       if(abs(wax + nx) < SNAP)
-                               nx = wax;
-                       else if(abs((wax + waw) - (nx + c->w + 2 * c->border)) < SNAP)
-                               nx = wax + waw - c->w - 2 * c->border;
-                       if(abs(way - ny) < SNAP)
-                               ny = way;
-                       else if(abs((way + wah) - (ny + c->h + 2 * c->border)) < SNAP)
-                               ny = way + wah - c->h - 2 * c->border;
+                       Monitor *m = &monitors[monitorat(nx, ny)];
+                       if(abs(m->wax - nx) < SNAP)
+                               nx = m->wax;
+                       else if(abs((m->wax + m->waw) - (nx + c->w + 2 * c->border)) < SNAP)
+                               nx = m->wax + m->waw - c->w - 2 * c->border;
+                       if(abs(m->way - ny) < SNAP)
+                               ny = m->way;
+                       else if(abs((m->way + m->wah) - (ny + c->h + 2 * c->border)) < SNAP)
+                               ny = m->way + m->wah - c->h - 2 * c->border;

                        resize(c, nx, ny, c->w, c->h, False);
                        resize(c, nx, ny, c->w, c->h, False);

+                       memcpy(c->tags, monitors[monitorat(nx, ny)].seltags, sizeof seltags);

                        break;
                }
        }
 }
 
 Client *
                        break;
                }
        }
 }
 
 Client *

-nexttiled(Client *c) {
-       for(; c && (c->isfloating || !isvisible(c)); c = c->next);
+nexttiled(Client *c, Monitor *m) {
+       for(; c && (c->isfloating || !isvisible(c, m)); c = c->next);

        return c;
 }
 
        return c;
 }
 


@@ -1158,57 +1224,75 @@ quit(const char *arg) {
        readin = running = False;
 }
 
        readin = running = False;
 }
 

+void
+reapply(const char *arg) {
+       static Bool zerotags[LENGTH(tags)] = { 0 };
+       Client *c;
+
+       for(c = clients; c; c = c->next) {
+               memcpy(c->tags, zerotags, sizeof zerotags);
+               applyrules(c);
+       }
+       arrange();
+}
+

 void
 resize(Client *c, int x, int y, int w, int h, Bool sizehints) {
 void
 resize(Client *c, int x, int y, int w, int h, Bool sizehints) {

-       double dx, dy, max, min, ratio;
-       XWindowChanges wc; 
+       XWindowChanges wc;
+       Monitor scr = monitors[monitorat(x, y)];
+       c->monitor = scr.id;

 
        if(sizehints) {
 
        if(sizehints) {

-               if(c->minay > 0 && c->maxay > 0 && (h - c->baseh) > 0 && (w - c->basew) > 0) {
-                       dx = (double)(w - c->basew);
-                       dy = (double)(h - c->baseh);
-                       min = (double)(c->minax) / (double)(c->minay);
-                       max = (double)(c->maxax) / (double)(c->maxay);
-                       ratio = dx / dy;
-                       if(max > 0 && min > 0 && ratio > 0) {
-                               if(ratio < min) {
-                                       dy = (dx * min + dy) / (min * min + 1);
-                                       dx = dy * min;
-                                       w = (int)dx + c->basew;
-                                       h = (int)dy + c->baseh;
-                               }
-                               else if(ratio > max) {
-                                       dy = (dx * min + dy) / (max * max + 1);
-                                       dx = dy * min;
-                                       w = (int)dx + c->basew;
-                                       h = (int)dy + c->baseh;
-                               }
-                       }
+               /* set minimum possible */
+               if (w < 1)
+                       w = 1;
+               if (h < 1)
+                       h = 1;
+
+               /* temporarily remove base dimensions */
+               w -= c->basew;
+               h -= c->baseh;
+
+               /* adjust for aspect limits */
+               if (c->minay > 0 && c->maxay > 0 && c->minax > 0 && c->maxax > 0) {
+                       if (w * c->maxay > h * c->maxax)
+                               w = h * c->maxax / c->maxay;
+                       else if (w * c->minay < h * c->minax)
+                               h = w * c->minay / c->minax;

                }
                }

-               if(c->minw && w < c->minw)
+
+               /* 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;
+
+               if(c->minw > 0 && w < c->minw)

                        w = c->minw;
                        w = c->minw;

-               if(c->minh && h < c->minh)
+               if(c->minh > 0 && h < c->minh)

                        h = c->minh;
                        h = c->minh;

-               if(c->maxw && w > c->maxw)
+               if(c->maxw > 0 && w > c->maxw)

                        w = c->maxw;
                        w = c->maxw;

-               if(c->maxh && h > c->maxh)
+               if(c->maxh > 0 && h > c->maxh)

                        h = c->maxh;
                        h = c->maxh;

-               if(c->incw)
-                       w -= (w - c->basew) % c->incw;
-               if(c->inch)
-                       h -= (h - c->baseh) % c->inch;

        }
        if(w <= 0 || h <= 0)
                return;
        }
        if(w <= 0 || h <= 0)
                return;

-       /* offscreen appearance fixes */
-       if(x > sw)
-               x = sw - w - 2 * c->border;
-       if(y > sh)
-               y = sh - h - 2 * c->border;
-       if(x + w + 2 * c->border < sx)
-               x = sx;
-       if(y + h + 2 * c->border < sy)
-               y = sy;
+       /* TODO: offscreen appearance fixes */
+       /*
+       if(x > scr.sw)
+               x = scr.sw - w - 2 * c->border;
+       if(y > scr.sh)
+               y = scr.sh - h - 2 * c->border;
+       if(x + w + 2 * c->border < scr.sx)
+               x = scr.sx;
+       if(y + h + 2 * c->border < scr.sy)
+               y = scr.sy;
+       */

        if(c->x != x || c->y != y || c->w != w || c->h != h) {
                c->x = wc.x = x;
                c->y = wc.y = y;
        if(c->x != x || c->y != y || c->w != w || c->h != h) {
                c->x = wc.x = x;
                c->y = wc.y = y;


@@ -1232,7 +1316,6 @@ resizemouse(Client *c) {
        if(XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
                        None, cursor[CurResize], CurrentTime) != GrabSuccess)
                return;
        if(XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
                        None, cursor[CurResize], CurrentTime) != GrabSuccess)
                return;

-       c->ismax = False;

        XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->border - 1, c->h + c->border - 1);
        for(;;) {
                XMaskEvent(dpy, MOUSEMASK | ExposureMask | SubstructureRedirectMask , &ev);
        XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->border - 1, c->h + c->border - 1);
        for(;;) {
                XMaskEvent(dpy, MOUSEMASK | ExposureMask | SubstructureRedirectMask , &ev);


@@ -1265,24 +1348,27 @@ restack(void) {
        Client *c;
        XEvent ev;
        XWindowChanges wc;
        Client *c;
        XEvent ev;
        XWindowChanges wc;

+       int s;

 
        drawbar();
        if(!sel)
                return;
 
        drawbar();
        if(!sel)
                return;

-       if(sel->isfloating || isarrange(floating))
+       if(sel->isfloating || (monitors[selmonitor].layout->arrange == floating))

                XRaiseWindow(dpy, sel->win);
                XRaiseWindow(dpy, sel->win);

-       if(!isarrange(floating)) {
+       if(monitors[selmonitor].layout->arrange != floating) {

                wc.stack_mode = Below;
                wc.stack_mode = Below;

-               wc.sibling = barwin;
+               wc.sibling = monitors[selmonitor].barwin;

                if(!sel->isfloating) {
                        XConfigureWindow(dpy, sel->win, CWSibling | CWStackMode, &wc);
                        wc.sibling = sel->win;
                }
                if(!sel->isfloating) {
                        XConfigureWindow(dpy, sel->win, CWSibling | CWStackMode, &wc);
                        wc.sibling = sel->win;
                }

-               for(c = nexttiled(clients); c; c = nexttiled(c->next)) {
-                       if(c == sel)
-                               continue;
-                       XConfigureWindow(dpy, c->win, CWSibling | CWStackMode, &wc);
-                       wc.sibling = c->win;
+               for(s = 0; s < mcount; s++) {
+                       for(c = nexttiled(clients, &monitors[s]); c; c = nexttiled(c->next, &monitors[s])) {
+                               if(c == sel)
+                                       continue;
+                               XConfigureWindow(dpy, c->win, CWSibling | CWStackMode, &wc);
+                               wc.sibling = c->win;
+                       }

                }
        }
        XSync(dpy, False);
                }
        }
        XSync(dpy, False);


@@ -1292,14 +1378,19 @@ restack(void) {
 void
 run(void) {
        char *p;
 void
 run(void) {
        char *p;

-       int r, xfd;
+       char buf[sizeof stext];

        fd_set rd;
        fd_set rd;

+       int r, xfd;
+       unsigned int len, offset;

        XEvent ev;
 
        /* main event loop, also reads status text from stdin */
        XSync(dpy, False);
        xfd = ConnectionNumber(dpy);
        readin = True;
        XEvent ev;
 
        /* main event loop, also reads status text from stdin */
        XSync(dpy, False);
        xfd = ConnectionNumber(dpy);
        readin = True;

+       offset = 0;
+       len = sizeof stext - 1;
+       buf[len] = stext[len] = '\0'; /* 0-terminator is never touched */

        while(running) {
                FD_ZERO(&rd);
                if(readin)
        while(running) {
                FD_ZERO(&rd);
                if(readin)


@@ -1311,10 +1402,9 @@ run(void) {
                        eprint("select failed\n");
                }
                if(FD_ISSET(STDIN_FILENO, &rd)) {
                        eprint("select failed\n");
                }
                if(FD_ISSET(STDIN_FILENO, &rd)) {

-                       switch(r = read(STDIN_FILENO, stext, sizeof stext - 1)) {
+                       switch((r = read(STDIN_FILENO, buf + offset, len - offset))) {

                        case -1:
                        case -1:

-                               strncpy(stext, strerror(errno), sizeof stext - 1);
-                               stext[sizeof stext - 1] = '\0';
+                               strncpy(stext, strerror(errno), len);

                                readin = False;
                                break;
                        case 0:
                                readin = False;
                                break;
                        case 0:


@@ -1322,10 +1412,18 @@ run(void) {
                                readin = False;
                                break;
                        default:
                                readin = False;
                                break;
                        default:

-                               for(stext[r] = '\0', p = stext + strlen(stext) - 1; p >= stext && *p == '\n'; *p-- = '\0');
-                               for(; p >= stext && *p != '\n'; --p);
-                               if(p > stext)
-                                       strncpy(stext, p + 1, sizeof stext);
+                               for(p = buf + offset; r > 0; p++, r--, offset++)
+                                       if(*p == '\n' || *p == '\0') {
+                                               *p = '\0';
+                                               strncpy(stext, buf, len);
+                                               p += r - 1; /* p is buf + offset + r - 1 */
+                                               for(r = 0; *(p - r) && *(p - r) != '\n'; r++);
+                                               offset = r;
+                                               if(r)
+                                                       memmove(buf, p - r + 1, r);
+                                               break;
+                                       }
+                               break;

                        }
                        drawbar();
                }
                        }
                        drawbar();
                }


@@ -1375,18 +1473,20 @@ setclientstate(Client *c, long state) {
 void
 setlayout(const char *arg) {
        unsigned int i;
 void
 setlayout(const char *arg) {
        unsigned int i;

+       Monitor *m = &monitors[monitorat(-1, -1)];

 
        if(!arg) {
 
        if(!arg) {

-               if(++ltidx == nlayouts)
-                       ltidx = 0;;
+               m->layout++;
+               if(m->layout == &layouts[LENGTH(layouts)])
+                       m->layout = &layouts[0];

        }
        else {
        }
        else {

-               for(i = 0; i < nlayouts; i++)
+               for(i = 0; i < LENGTH(layouts); i++)

                        if(!strcmp(arg, layouts[i].symbol))
                                break;
                        if(!strcmp(arg, layouts[i].symbol))
                                break;

-               if(i == nlayouts)
+               if(i == LENGTH(layouts))

                        return;
                        return;

-               ltidx = i;
+               m->layout = &layouts[i];

        }
        if(sel)
                arrange();
        }
        if(sel)
                arrange();


@@ -1398,30 +1498,34 @@ void
 setmwfact(const char *arg) {
        double delta;
 
 setmwfact(const char *arg) {
        double delta;
 

-       if(!isarrange(tile))
+       Monitor *m = &monitors[monitorat(-1, -1)];
+
+       if(!domwfact)

                return;
        /* arg handling, manipulate mwfact */
        if(arg == NULL)
                return;
        /* arg handling, manipulate mwfact */
        if(arg == NULL)

-               mwfact = MWFACT;
-       else if(1 == sscanf(arg, "%lf", &delta)) {
+               m->mwfact = MWFACT;
+       else if(sscanf(arg, "%lf", &delta) == 1) {

                if(arg[0] == '+' || arg[0] == '-')
                if(arg[0] == '+' || arg[0] == '-')

-                       mwfact += delta;
+                       m->mwfact += delta;

                else
                else

-                       mwfact = delta;
-               if(mwfact < 0.1)
-                       mwfact = 0.1;
-               else if(mwfact > 0.9)
-                       mwfact = 0.9;
+                       m->mwfact = delta;
+               if(m->mwfact < 0.1)
+                       m->mwfact = 0.1;
+               else if(m->mwfact > 0.9)
+                       m->mwfact = 0.9;

        }
        arrange();
 }
 
 void
 setup(void) {
        }
        arrange();
 }
 
 void
 setup(void) {

-       unsigned int i, j, mask;
-       Window w;
+       unsigned int i, j, k;

        XModifierKeymap *modmap;
        XSetWindowAttributes wa;
        XModifierKeymap *modmap;
        XSetWindowAttributes wa;

+       int s = 1;
+       GC g;
+       XineramaScreenInfo *info = NULL;

 
        /* init atoms */
        wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);
 
        /* init atoms */
        wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);


@@ -1438,10 +1542,6 @@ setup(void) {
        cursor[CurResize] = XCreateFontCursor(dpy, XC_sizing);
        cursor[CurMove] = XCreateFontCursor(dpy, XC_fleur);
 
        cursor[CurResize] = XCreateFontCursor(dpy, XC_sizing);
        cursor[CurMove] = XCreateFontCursor(dpy, XC_fleur);
 

-       /* init geometry */
-       sx = sy = 0;
-       sw = DisplayWidth(dpy, screen);
-       sh = DisplayHeight(dpy, screen);

 
        /* init modifier map */
        modmap = XGetModifierMapping(dpy);
 
        /* init modifier map */
        modmap = XGetModifierMapping(dpy);


@@ -1461,53 +1561,79 @@ setup(void) {
        XSelectInput(dpy, root, wa.event_mask);
 
        /* grab keys */
        XSelectInput(dpy, root, wa.event_mask);
 
        /* grab keys */

-       keypress(NULL);
+       grabkeys();

 
        /* init tags */
        compileregs();
 
        /* init tags */
        compileregs();

-       for(ntags = 0; tags[ntags]; ntags++);
-       seltags = emallocz(sizeof(Bool) * ntags);
-       seltags[0] = True;
-
-       /* init appearance */
-       dc.norm[ColBorder] = getcolor(NORMBORDERCOLOR);
-       dc.norm[ColBG] = getcolor(NORMBGCOLOR);
-       dc.norm[ColFG] = getcolor(NORMFGCOLOR);
-       dc.sel[ColBorder] = getcolor(SELBORDERCOLOR);
-       dc.sel[ColBG] = getcolor(SELBGCOLOR);
-       dc.sel[ColFG] = getcolor(SELFGCOLOR);
-       initfont(FONT);
-       dc.h = bh = dc.font.height + 2;
-
-       /* init layouts */
-       mwfact = MWFACT;
-       nlayouts = sizeof layouts / sizeof layouts[0];
-       for(blw = i = 0; i < nlayouts; i++) {
-               j = textw(layouts[i].symbol);
-               if(j > blw)
-                       blw = j;
+
+       if (XineramaIsActive(dpy)) {
+               info = XineramaQueryScreens(dpy, &s);

        }
 
        }
 

-       /* init bar */
-       bpos = BARPOS;
-       wa.override_redirect = 1;
-       wa.background_pixmap = ParentRelative;
-       wa.event_mask = ButtonPressMask | ExposureMask;
-       barwin = XCreateWindow(dpy, root, sx, sy, sw, bh, 0,
-                       DefaultDepth(dpy, screen), CopyFromParent, DefaultVisual(dpy, screen),
-                       CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
-       XDefineCursor(dpy, barwin, cursor[CurNormal]);
-       updatebarpos();
-       XMapRaised(dpy, barwin);
-       strcpy(stext, "dwm-"VERSION);
-       dc.drawable = XCreatePixmap(dpy, root, sw, bh, DefaultDepth(dpy, screen));
-       dc.gc = XCreateGC(dpy, root, 0, 0);
-       XSetLineAttributes(dpy, dc.gc, 1, LineSolid, CapButt, JoinMiter);
-       if(!dc.font.set)
-               XSetFont(dpy, dc.gc, dc.font.xfont->fid);
-
-       /* multihead support */
-       selscreen = XQueryPointer(dpy, root, &w, &w, &i, &i, &i, &i, &mask);
+       monitors = emallocz(s*sizeof(Monitor));
+       mcount = s;
+
+       for(i = 0; i < s; i++) {
+               /* init geometry */
+               if (mcount != 1) {
+                       monitors[i].sx = info[i].x_org;
+                       monitors[i].sy = info[i].y_org;
+                       monitors[i].sw = info[i].width;
+                       monitors[i].sh = info[i].height;
+               }
+               else {
+                       monitors[i].sx = 0;
+                       monitors[i].sy = 0;
+                       monitors[i].sw = DisplayWidth(dpy, screen);
+                       monitors[i].sh = DisplayHeight(dpy, screen);
+               }
+
+               monitors[i].id = i;
+               monitors[i].seltags = emallocz(LENGTH(tags)*sizeof(char*));
+               monitors[i].prevtags = emallocz(LENGTH(tags)*sizeof(char*));
+
+               memcpy(monitors[i].seltags, seltags, sizeof seltags);
+               memcpy(monitors[i].prevtags, seltags, sizeof seltags);
+
+               /* init appearance */
+               monitors[i].dc.norm[ColBorder] = getcolor(NORMBORDERCOLOR);
+               monitors[i].dc.norm[ColBG] = getcolor(NORMBGCOLOR);
+               monitors[i].dc.norm[ColFG] = getcolor(NORMFGCOLOR);
+               monitors[i].dc.sel[ColBorder] = getcolor(SELBORDERCOLOR);
+               monitors[i].dc.sel[ColBG] = getcolor(SELBGCOLOR);
+               monitors[i].dc.sel[ColFG] = getcolor(SELFGCOLOR);
+               initfont(&(monitors[i]), FONT);
+               monitors[i].dc.h = bh = monitors[i].dc.font.height + 2;
+
+               /* init layouts */
+               monitors[i].mwfact = MWFACT;
+               monitors[i].layout = &layouts[0];
+               for(blw = k = 0; k < LENGTH(layouts); k++) {
+                       j = textw(&monitors[i], layouts[k].symbol);
+                       if(j > blw)
+                               blw = j;
+               }
+
+               bpos = BARPOS;
+               wa.override_redirect = 1;
+               wa.background_pixmap = ParentRelative;
+               wa.event_mask = ButtonPressMask | ExposureMask;
+
+               /* init bars */
+               monitors[i].barwin = XCreateWindow(dpy, root, monitors[i].sx, monitors[i].sy, monitors[i].sw, bh, 0,
+                               DefaultDepth(dpy, screen), CopyFromParent, DefaultVisual(dpy, screen),
+                               CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
+               XDefineCursor(dpy, monitors[i].barwin, cursor[CurNormal]);
+               updatebarpos(&monitors[i]);
+               XMapRaised(dpy, monitors[i].barwin);
+               strcpy(stext, "dwm-"VERSION);
+               monitors[i].dc.drawable = XCreatePixmap(dpy, root, monitors[i].sw, bh, DefaultDepth(dpy, screen));
+               g = XCreateGC(dpy, root, 0, 0);
+               monitors[i].dc.gc = XCreateGC(dpy, root, 0, 0);
+               XSetLineAttributes(dpy, monitors[i].dc.gc, 1, LineSolid, CapButt, JoinMiter);
+               if(!monitors[i].dc.font.set)
+                       XSetFont(dpy, monitors[i].dc.gc, monitors[i].dc.font.xfont->fid);
+       }

 }
 
 void
 }
 
 void


@@ -1540,76 +1666,85 @@ tag(const char *arg) {
 
        if(!sel)
                return;
 
        if(!sel)
                return;

-       for(i = 0; i < ntags; i++)
-               sel->tags[i] = arg == NULL;
-       i = idxoftag(arg);
-       if(i >= 0 && i < ntags)
-               sel->tags[i] = True;
+       for(i = 0; i < LENGTH(tags); i++)
+               sel->tags[i] = (NULL == arg);
+       sel->tags[idxoftag(arg)] = True;

        arrange();
 }
 
 unsigned int
        arrange();
 }
 
 unsigned int

-textnw(const char *text, unsigned int len) {
+textnw(Monitor *m, const char *text, unsigned int len) {

        XRectangle r;
 
        XRectangle r;
 

-       if(dc.font.set) {
-               XmbTextExtents(dc.font.set, text, len, NULL, &r);
+       if(m->dc.font.set) {
+               XmbTextExtents(m->dc.font.set, text, len, NULL, &r);

                return r.width;
        }
                return r.width;
        }

-       return XTextWidth(dc.font.xfont, text, len);
+       return XTextWidth(m->dc.font.xfont, text, len);

 }
 
 unsigned int
 }
 
 unsigned int

-textw(const char *text) {
-       return textnw(text, strlen(text)) + dc.font.height;
+textw(Monitor *m, const char *text) {
+       return textnw(m, text, strlen(text)) + m->dc.font.height;

 }
 
 void
 tile(void) {
        unsigned int i, n, nx, ny, nw, nh, mw, th;
 }
 
 void
 tile(void) {
        unsigned int i, n, nx, ny, nw, nh, mw, th;

-       Client *c;
-
-       for(n = 0, c = nexttiled(clients); c; c = nexttiled(c->next))
-               n++;
-
-       /* window geoms */
-       mw = (n == 1) ? waw : mwfact * waw;
-       th = (n > 1) ? wah / (n - 1) : 0;
-       if(n > 1 && th < bh)
-               th = wah;
-
-       nx = wax;
-       ny = way;
-       for(i = 0, c = nexttiled(clients); c; c = nexttiled(c->next), i++) {
-               c->ismax = False;
-               if(i == 0) { /* master */
-                       nw = mw - 2 * c->border;
-                       nh = wah - 2 * c->border;
-               }
-               else {  /* tile window */
-                       if(i == 1) {
-                               ny = way;
-                               nx += mw;
+       int s;
+       Client *c, *mc;
+
+       domwfact = dozoom = True;
+
+       nw = 0; /* gcc stupidity requires this */
+
+       for (s = 0; s < mcount; s++) {
+               Monitor *m = &monitors[s];
+
+               for(n = 0, c = nexttiled(clients, m); c; c = nexttiled(c->next, m))
+                       n++;
+
+               for(i = 0, c = mc = nexttiled(clients, m); c; c = nexttiled(c->next, m)) {
+                       /* window geoms */
+                       mw = (n == 1) ? m->waw : m->mwfact * m->waw;
+                       th = (n > 1) ? m->wah / (n - 1) : 0;
+                       if(n > 1 && th < bh)
+                               th = m->wah;
+                       if(i == 0) { /* master */
+                               nx = m->wax;
+                               ny = m->way;
+                               nw = mw - 2 * c->border;
+                               nh = m->wah - 2 * c->border;

                        }
                        }

-                       nw = waw - mw - 2 * c->border;
-                       if(i + 1 == n) /* remainder */
-                               nh = (way + wah) - ny - 2 * c->border;
-                       else
-                               nh = th - 2 * c->border;
+                       else {  /* tile window */
+                               if(i == 1) {
+                                       ny = m->way;
+                                       nx += mc->w + 2 * mc->border;
+                                       nw = m->waw - mw - 2 * c->border;
+                               }
+                               if(i + 1 == n) /* remainder */
+                                       nh = (m->way + m->wah) - ny - 2 * c->border;
+                               else
+                                       nh = th - 2 * c->border;
+                       }
+                       resize(c, nx, ny, nw, nh, RESIZEHINTS);
+                       if((RESIZEHINTS) && ((c->h < bh) || (c->h > nh) || (c->w < bh) || (c->w > nw)))
+                               /* client doesn't accept size constraints */
+                               resize(c, nx, ny, nw, nh, False);
+                       if(n > 1 && th != m->wah)
+                               ny = c->y + c->h + 2 * c->border;
+
+                       i++;

                }
                }

-               resize(c, nx, ny, nw, nh, RESIZEHINTS);
-               if(n > 1 && th != wah)
-                       ny += nh + 2 * c->border;

        }
 }
        }
 }

-

 void
 togglebar(const char *arg) {
        if(bpos == BarOff)
                bpos = (BARPOS == BarOff) ? BarTop : BARPOS;
        else
                bpos = BarOff;
 void
 togglebar(const char *arg) {
        if(bpos == BarOff)
                bpos = (BARPOS == BarOff) ? BarTop : BARPOS;
        else
                bpos = BarOff;

-       updatebarpos();
+       updatebarpos(&monitors[monitorat(-1,-1)]);

        arrange();
 }
 
        arrange();
 }
 


@@ -1623,34 +1758,6 @@ togglefloating(const char *arg) {
        arrange();
 }
 
        arrange();
 }
 

-void
-togglemax(const char *arg) {
-       XEvent ev;
-
-       if(!sel || sel->isfixed)
-               return;
-       if((sel->ismax = !sel->ismax)) {
-               if(isarrange(floating) || sel->isfloating)
-                       sel->wasfloating = True;
-               else {
-                       togglefloating(NULL);
-                       sel->wasfloating = False;
-               }
-               sel->rx = sel->x;
-               sel->ry = sel->y;
-               sel->rw = sel->w;
-               sel->rh = sel->h;
-               resize(sel, wax, way, waw - 2 * sel->border, wah - 2 * sel->border, True);
-       }
-       else {
-               resize(sel, sel->rx, sel->ry, sel->rw, sel->rh, True);
-               if(!sel->wasfloating)
-                       togglefloating(NULL);
-       }
-       drawbar();
-       while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
-}
-

 void
 toggletag(const char *arg) {
        unsigned int i, j;
 void
 toggletag(const char *arg) {
        unsigned int i, j;


@@ -1659,9 +1766,9 @@ toggletag(const char *arg) {
                return;
        i = idxoftag(arg);
        sel->tags[i] = !sel->tags[i];
                return;
        i = idxoftag(arg);
        sel->tags[i] = !sel->tags[i];

-       for(j = 0; j < ntags && !sel->tags[j]; j++);
-       if(j == ntags)
-               sel->tags[i] = True;
+       for(j = 0; j < LENGTH(tags) && !sel->tags[j]; j++);
+       if(j == LENGTH(tags))
+               sel->tags[i] = True; /* at least one tag must be enabled */

        arrange();
 }
 
        arrange();
 }
 


@@ -1669,11 +1776,13 @@ void
 toggleview(const char *arg) {
        unsigned int i, j;
 
 toggleview(const char *arg) {
        unsigned int i, j;
 

+       Monitor *m = &monitors[monitorat(-1, -1)];
+

        i = idxoftag(arg);
        i = idxoftag(arg);

-       seltags[i] = !seltags[i];
-       for(j = 0; j < ntags && !seltags[j]; j++);
-       if(j == ntags)
-               seltags[i] = True; /* cannot toggle last view */
+       m->seltags[i] = !m->seltags[i];
+       for(j = 0; j < LENGTH(tags) && !m->seltags[j]; j++);
+       if(j == LENGTH(tags))
+               m->seltags[i] = True; /* at least one tag must be viewed */

        arrange();
 }
 
        arrange();
 }
 


@@ -1718,25 +1827,25 @@ unmapnotify(XEvent *e) {
 }
 
 void
 }
 
 void

-updatebarpos(void) {
+updatebarpos(Monitor *s) {

        XEvent ev;
 
        XEvent ev;
 

-       wax = sx;
-       way = sy;
-       wah = sh;
-       waw = sw;
+       s->wax = s->sx;
+       s->way = s->sy;
+       s->wah = s->sh;
+       s->waw = s->sw;

        switch(bpos) {
        default:
        switch(bpos) {
        default:

-               wah -= bh;
-               way += bh;
-               XMoveWindow(dpy, barwin, sx, sy);
+               s->wah -= bh;
+               s->way += bh;
+               XMoveWindow(dpy, s->barwin, s->sx, s->sy);

                break;
        case BarBot:
                break;
        case BarBot:

-               wah -= bh;
-               XMoveWindow(dpy, barwin, sx, sy + wah);
+               s->wah -= bh;
+               XMoveWindow(dpy, s->barwin, s->sx, s->sy + s->wah);

                break;
        case BarOff:
                break;
        case BarOff:

-               XMoveWindow(dpy, barwin, sx, sy - bh);
+               XMoveWindow(dpy, s->barwin, s->sx, s->sy - bh);

                break;
        }
        XSync(dpy, False);
                break;
        }
        XSync(dpy, False);


@@ -1837,11 +1946,24 @@ void
 view(const char *arg) {
        unsigned int i;
 
 view(const char *arg) {
        unsigned int i;
 

-       for(i = 0; i < ntags; i++)
-               seltags[i] = arg == NULL;
-       i = idxoftag(arg);
-       if(i >= 0 && i < ntags)
-               seltags[i] = True;
+       Monitor *m = &monitors[monitorat(-1, -1)];
+
+       memcpy(m->prevtags, seltags, sizeof seltags);
+       for(i = 0; i < LENGTH(tags); i++)
+               m->seltags[i] = (NULL == arg);
+       m->seltags[idxoftag(arg)] = True;
+       arrange();
+}
+
+void
+viewprevtag(const char *arg) {
+       static Bool tmp[LENGTH(tags)];
+
+       Monitor *m = &monitors[monitorat(-1, -1)];
+
+       memcpy(tmp, m->seltags, sizeof seltags);
+       memcpy(m->seltags, m->prevtags, sizeof seltags);
+       memcpy(m->prevtags, tmp, sizeof seltags);

        arrange();
 }
 
        arrange();
 }
 


@@ -1849,10 +1971,10 @@ void
 zoom(const char *arg) {
        Client *c;
 
 zoom(const char *arg) {
        Client *c;
 

-       if(!sel || !isarrange(tile) || sel->isfloating)
+       if(!sel || !dozoom || sel->isfloating)

                return;
                return;

-       if((c = sel) == nexttiled(clients))
-               if(!(c = nexttiled(c->next)))
+       if((c = sel) == nexttiled(clients, &monitors[c->monitor]))
+               if(!(c = nexttiled(c->next, &monitors[c->monitor])))

                        return;
        detach(c);
        attach(c);
                        return;
        detach(c);
        attach(c);


@@ -1860,10 +1982,53 @@ zoom(const char *arg) {
        arrange();
 }
 
        arrange();
 }
 

+int
+monitorat(int x, int y) {
+       int i;
+
+       if(!XineramaIsActive(dpy))
+               return 0;
+
+       if (x < 0 || y < 0) {
+               Window win;
+               unsigned int mask;
+               XQueryPointer(dpy, root, &win, &win, &x, &y, &i, &i, &mask);
+       }
+
+       for(i = 0; i < mcount; i++)
+               if((x < 0 || (x >= monitors[i].sx && x < monitors[i].sx + monitors[i].sw))
+                               && (y < 0 || (y >= monitors[i].sy && y < monitors[i].sy + monitors[i].sh)))
+               {
+                       return i;
+               }
+       return 0;
+}
+
+void
+movetomonitor(const char *arg) {
+       if (sel) {
+               sel->monitor = arg ? atoi(arg) : (sel->monitor+1) % mcount;
+
+               memcpy(sel->tags, monitors[sel->monitor].seltags, sizeof seltags);
+               resize(sel, monitors[sel->monitor].wax, monitors[sel->monitor].way, sel->w, sel->h, True);
+               arrange();
+       }
+}
+
+void
+selectmonitor(const char *arg) {
+       Monitor *m = &monitors[arg ? atoi(arg) : (monitorat(-1, -1)+1) % mcount];
+
+       XWarpPointer(dpy, None, root, 0, 0, 0, 0, m->wax+m->waw/2, m->way+m->wah/2);
+       focus(NULL);
+}
+
+

 int
 main(int argc, char *argv[]) {
        if(argc == 2 && !strcmp("-v", argv[1]))
 int
 main(int argc, char *argv[]) {
        if(argc == 2 && !strcmp("-v", argv[1]))

-               eprint("dwm-"VERSION", © 2006-2007 A. R. Garbe, S. van Dijk, J. Salmi, P. Hruby, S. Nagy\n");
+               eprint("dwm-"VERSION", © 2006-2007 Anselm R. Garbe, Sander van Dijk, "
+                      "Jukka Salmi, Premysl Hruby, Szabolcs Nagy\n");

        else if(argc != 1)
                eprint("usage: dwm [-v]\n");
 
        else if(argc != 1)
                eprint("usage: dwm [-v]\n");