applied Gottox patch

diff --git a/dwm.c b/dwm.c
index f1d3641..0615978 100644 (file)
--- a/dwm.c
+++ b/dwm.c
@@ -207,7 +207,7 @@ static void zoom(const Arg *arg);
 static char stext[256];
 static int screen, sx, sy, sw, sh;
 static int by, bh, blw, wx, wy, ww, wh;
-static uint seltags = 0;
+static uint seltags = 0, sellt = 0;
 static int (*xerrorxlib)(Display *, XErrorEvent *);
 static uint numlockmask = 0;
 static void (*handler[LASTEvent]) (XEvent *) = {
@@ -234,7 +234,7 @@ static Client *stack = NULL;
 static Cursor cursor[CurLast];
 static Display *dpy;
 static DC dc = {0};
-static Layout *lt = NULL;
+static Layout *lt[] = { NULL, NULL };
 static Window root, barwin;
 /* configuration, allows nested code to access above variables */
 #include "config.h"
@@ -274,7 +274,7 @@ arrange(void) {
 
        for(c = clients; c; c = c->next)
                if(c->tags & tagset[seltags]) { /* is visible */
-                       if(!lt->arrange || c->isfloating)
+                       if(!lt[sellt]->arrange || c->isfloating)
                                resize(c, c->x, c->y, c->w, c->h, True);
                        c->isbanned = False;
                }
@@ -284,8 +284,8 @@ arrange(void) {
                }
 
        focus(NULL);
-       if(lt->arrange)
-               lt->arrange();
+       if(lt[sellt]->arrange)
+               lt[sellt]->arrange();
        restack();
 }
 
@@ -355,7 +355,7 @@ cleanup(void) {
 
        close(STDIN_FILENO);
        view(&a);
-       lt = &foo;
+       lt[sellt] = &foo;
        while(stack)
                unmanage(stack);
        if(dc.font.set)
@@ -413,7 +413,7 @@ configurerequest(XEvent *e) {
        if((c = getclient(ev->window))) {
                if(ev->value_mask & CWBorderWidth)
                        c->bw = ev->border_width;
-               else if(c->isfloating || !lt->arrange) {
+               else if(c->isfloating || !lt[sellt]->arrange) {
                        if(ev->value_mask & CWX)
                                c->x = sx + ev->x;
                        if(ev->value_mask & CWY)
@@ -500,7 +500,7 @@ drawbar(void) {
        }
        if(blw > 0) {
                dc.w = blw;
-               drawtext(lt->symbol, dc.norm, False);
+               drawtext(lt[sellt]->symbol, dc.norm, False);
                x = dc.x + dc.w;
        }
        else
@@ -1009,10 +1009,10 @@ movemouse(const Arg *arg) {
                                        ny = wy;
                                else if(abs((wy + wh) - (ny + c->h + 2 * c->bw)) < snap)
                                        ny = wy + wh - c->h - 2 * c->bw;
-                               if(!c->isfloating && lt->arrange && (abs(nx - c->x) > snap || abs(ny - c->y) > snap))
+                               if(!c->isfloating && lt[sellt]->arrange && (abs(nx - c->x) > snap || abs(ny - c->y) > snap))
                                        togglefloating(NULL);
                        }
-                       if(!lt->arrange || c->isfloating)
+                       if(!lt[sellt]->arrange || c->isfloating)
                                resize(c, nx, ny, c->w, c->h, False);
                        break;
                }
@@ -1166,11 +1166,11 @@ resizemouse(const Arg *arg) {
 
                        if(snap && nw >= wx && nw <= wx + ww
                                && nh >= wy && nh <= wy + wh) {
-                               if(!c->isfloating && lt->arrange
+                               if(!c->isfloating && lt[sellt]->arrange
                                   && (abs(nw - c->w) > snap || abs(nh - c->h) > snap))
                                        togglefloating(NULL);
                        }
-                       if(!lt->arrange || c->isfloating)
+                       if(!lt[sellt]->arrange || c->isfloating)
                                resize(c, c->x, c->y, nw, nh, True);
                        break;
                }
@@ -1186,9 +1186,9 @@ restack(void) {
        drawbar();
        if(!sel)
                return;
-       if(sel->isfloating || !lt->arrange)
+       if(sel->isfloating || !lt[sellt]->arrange)
                XRaiseWindow(dpy, sel->win);
-       if(lt->arrange) {
+       if(lt[sellt]->arrange) {
                wc.stack_mode = Below;
                wc.sibling = barwin;
                for(c = stack; c; c = c->snext)
@@ -1298,14 +1298,9 @@ setclientstate(Client *c, long state) {
 
 void
 setlayout(const Arg *arg) {
-       static Layout *prevlt = &layouts[1 % LENGTH(layouts)];
-
-       if(!arg || !arg->v || arg->v == lt)
-               lt = prevlt;
-       else {
-               prevlt = lt;
-               lt = (Layout *)arg->v;
-       }
+       sellt ^= 1;
+       if(arg && arg->v && arg->v != lt[sellt])
+               lt[sellt] = (Layout *)arg->v;
        if(sel)
                arrange();
        else
@@ -1317,7 +1312,7 @@ void
 setmfact(const Arg *arg) {
        float f;
 
-       if(!arg || !lt->arrange)
+       if(!arg || !lt[sellt]->arrange)
                return;
        f = arg->f < 1.0 ? arg->f + mfact : arg->f - 1.0;
        if(f < 0.1 || f > 0.9)
@@ -1341,7 +1336,8 @@ setup(void) {
        sw = DisplayWidth(dpy, screen);
        sh = DisplayHeight(dpy, screen);
        bh = dc.h = dc.font.height + 2;
-       lt = layouts;
+       lt[0] = &layouts[0];
+       lt[1] = &layouts[1 % LENGTH(layouts)];
        updategeom();
 
        /* init atoms */
@@ -1691,7 +1687,7 @@ void
 zoom(const Arg *arg) {
        Client *c = sel;
 
-       if(!lt->arrange || lt->arrange == monocle || (sel && sel->isfloating))
+       if(!lt[sellt]->arrange || lt[sellt]->arrange == monocle || (sel && sel->isfloating))
                return;
        if(c == nexttiled(clients))
                if(!c || !(c = nexttiled(c->next)))