implemened distinguishing float/managed geometries of clients (works quite well)

client.c

@@ -16,16 +16,16 @@ resizetitle(Client *c)
 {
 	int i;
 
-	c->tw = 0;
+	c->bw = 0;
 	for(i = 0; i < TLast; i++)
 		if(c->tags[i])
-			c->tw += textw(c->tags[i]);
-	c->tw += textw(c->name);
-	if(c->tw > c->w)
-		c->tw = c->w + 2;
-	c->tx = c->x + c->w - c->tw + 2;
-	c->ty = c->y;
-	XMoveResizeWindow(dpy, c->title, c->tx, c->ty, c->tw, c->th);
+			c->bw += textw(c->tags[i]);
+	c->bw += textw(c->name);
+	if(c->bw > *c->w)
+		c->bw = *c->w + 2;
+	c->bx = *c->x + *c->w - c->bw + 2;
+	c->by = *c->y;
+	XMoveResizeWindow(dpy, c->title, c->bx, c->by, c->bw, c->bh);
 }
 
 static int
@@ -39,8 +39,8 @@ xerrordummy(Display *dsply, XErrorEvent *ee)
 void
 ban(Client *c)
 {
-	XMoveWindow(dpy, c->win, c->x + 2 * sw, c->y);
-	XMoveWindow(dpy, c->title, c->tx + 2 * sw, c->ty);
+	XMoveWindow(dpy, c->win, *c->x + 2 * sw, *c->y);
+	XMoveWindow(dpy, c->title, c->bx + 2 * sw, c->by);
 }
 
 void
@@ -124,12 +124,12 @@ gravitate(Client *c, Bool invert)
 	case EastGravity:
 	case CenterGravity:
 	case WestGravity:
-		dy = -(c->h / 2) + c->border;
+		dy = -(*c->h / 2) + c->border;
 		break;
 	case SouthEastGravity:
 	case SouthGravity:
 	case SouthWestGravity:
-		dy = -c->h;
+		dy = -(*c->h);
 		break;
 	default:
 		break;
@@ -145,12 +145,12 @@ gravitate(Client *c, Bool invert)
 	case NorthGravity:
 	case CenterGravity:
 	case SouthGravity:
-		dx = -(c->w / 2) + c->border;
+		dx = -(*c->w / 2) + c->border;
 		break;
 	case NorthEastGravity:
 	case EastGravity:
 	case SouthEastGravity:
-		dx = -(c->w + c->border);
+		dx = -(*c->w + c->border);
 		break;
 	default:
 		break;
@@ -160,8 +160,8 @@ gravitate(Client *c, Bool invert)
 		dx = -dx;
 		dy = -dy;
 	}
-	c->x += dx;
-	c->y += dy;
+	*c->x += dx;
+	*c->y += dy;
 }
 
 void
@@ -198,13 +198,13 @@ manage(Window w, XWindowAttributes *wa)
 
 	c = emallocz(sizeof(Client));
 	c->win = w;
-	c->tx = c->x = wa->x;
-	c->ty = c->y = wa->y;
-	if(c->y < bh)
-		c->ty = c->y += bh;
-	c->tw = c->w = wa->width;
-	c->h = wa->height;
-	c->th = bh;
+	c->bx = c->fx = c->tx = wa->x;
+	c->by = c->fy = c->ty = wa->y;
+	if(c->fy < bh)
+		c->by = c->fy = c->ty += bh;
+	c->bw = c->fw = c->tw = wa->width;
+	c->fh = c->th = wa->height;
+	c->bh = bh;
 	c->border = 1;
 	c->proto = getproto(c->win);
 	setsize(c);
@@ -215,12 +215,11 @@ manage(Window w, XWindowAttributes *wa)
 	twa.background_pixmap = ParentRelative;
 	twa.event_mask = ExposureMask;
 
-	c->title = XCreateWindow(dpy, root, c->tx, c->ty, c->tw, c->th,
+	c->title = XCreateWindow(dpy, root, c->bx, c->by, c->bw, c->bh,
 			0, DefaultDepth(dpy, screen), CopyFromParent,
 			DefaultVisual(dpy, screen),
 			CWOverrideRedirect | CWBackPixmap | CWEventMask, &twa);
 
-	settitle(c);
 	settags(c);
 
 	c->next = clients;
@@ -239,7 +238,11 @@ manage(Window w, XWindowAttributes *wa)
 		c->isfloat = trans
 			|| ((c->maxw == c->minw) && (c->maxh == c->minh));
 
+	setgeom(c);
+	settitle(c);
+
 	arrange(NULL);
+
 	/* mapping the window now prevents flicker */
 	if(c->tags[tsel]) {
 		XMapRaised(dpy, c->win);
@@ -259,10 +262,10 @@ maximize(Arg *arg)
 {
 	if(!sel)
 		return;
-	sel->x = sx;
-	sel->y = sy + bh;
-	sel->w = sw - 2 * sel->border;
-	sel->h = sh - 2 * sel->border - bh;
+	*sel->x = sx;
+	*sel->y = sy + bh;
+	*sel->w = sw - 2 * sel->border;
+	*sel->h = sh - 2 * sel->border - bh;
 	higher(sel);
 	resize(sel, False);
 }
@@ -286,32 +289,32 @@ resize(Client *c, Bool inc)
 
 	if(inc) {
 		if(c->incw)
-			c->w -= (c->w - c->basew) % c->incw;
+			*c->w -= (*c->w - c->basew) % c->incw;
 		if(c->inch)
-			c->h -= (c->h - c->baseh) % c->inch;
+			*c->h -= (*c->h - c->baseh) % c->inch;
 	}
-	if(c->x > sw) /* might happen on restart */
-		c->x = sw - c->w;
-	if(c->y > sh)
-		c->ty = c->y = sh - c->h;
-	if(c->minw && c->w < c->minw)
-		c->w = c->minw;
-	if(c->minh && c->h < c->minh)
-		c->h = c->minh;
-	if(c->maxw && c->w > c->maxw)
-		c->w = c->maxw;
-	if(c->maxh && c->h > c->maxh)
-		c->h = c->maxh;
+	if(*c->x > sw) /* might happen on restart */
+		*c->x = sw - *c->w;
+	if(*c->y > sh)
+		*c->y = sh - *c->h;
+	if(c->minw && *c->w < c->minw)
+		*c->w = c->minw;
+	if(c->minh && *c->h < c->minh)
+		*c->h = c->minh;
+	if(c->maxw && *c->w > c->maxw)
+		*c->w = c->maxw;
+	if(c->maxh && *c->h > c->maxh)
+		*c->h = c->maxh;
 	resizetitle(c);
 	XSetWindowBorderWidth(dpy, c->win, 1);
-	XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h);
+	XMoveResizeWindow(dpy, c->win, *c->x, *c->y, *c->w, *c->h);
 	e.type = ConfigureNotify;
 	e.event = c->win;
 	e.window = c->win;
-	e.x = c->x;
-	e.y = c->y;
-	e.width = c->w;
-	e.height = c->h;
+	e.x = *c->x;
+	e.y = *c->y;
+	e.width = *c->w;
+	e.height = *c->h;
 	e.border_width = c->border;
 	e.above = None;
 	e.override_redirect = False;
@@ -319,6 +322,23 @@ resize(Client *c, Bool inc)
 	XSync(dpy, False);
 }
 
+void
+setgeom(Client *c)
+{
+	if((arrange == dotile) && !c->isfloat) {
+		c->x = &c->tx;
+		c->y = &c->ty;
+		c->w = &c->tw;
+		c->h = &c->th;
+	}
+	else {
+		c->x = &c->fx;
+		c->y = &c->fy;
+		c->w = &c->fw;
+		c->h = &c->fh;
+	}
+}
+
 void
 setsize(Client *c)
 {

dwm.h

@@ -65,8 +65,10 @@ struct Client {
 	char name[256];
 	char *tags[TLast];
 	int proto;
-	int x, y, w, h;
-	int tx, ty, tw, th;
+	int *x, *y, *w, *h; /* current geom */
+	int bx, by, bw, bh; /* title bar */
+	int fx, fy, fw, fh; /* floating geom */
+	int tx, ty, tw, th; /* tiled geom */
 	int basew, baseh, incw, inch, maxw, maxh, minw, minh;
 	int grav;
 	unsigned int border;
@@ -120,6 +122,7 @@ extern void manage(Window w, XWindowAttributes *wa);
 extern void maximize(Arg *arg);
 extern void pop(Client *c);
 extern void resize(Client *c, Bool inc);
+extern void setgeom(Client *c);
 extern void setsize(Client *c);
 extern void settitle(Client *c);
 extern void unmanage(Client *c);

event.c

@@ -62,8 +62,8 @@ movemouse(Client *c)
 	unsigned int dui;
 	Window dummy;
 
-	ocx = c->x;
-	ocy = c->y;
+	ocx = *c->x;
+	ocy = *c->y;
 	if(XGrabPointer(dpy, root, False, MouseMask, GrabModeAsync, GrabModeAsync,
 				None, cursor[CurMove], CurrentTime) != GrabSuccess)
 		return;
@@ -77,8 +77,8 @@ movemouse(Client *c)
 			break;
 		case MotionNotify:
 			XSync(dpy, False);
-			c->x = ocx + (ev.xmotion.x - x1);
-			c->y = ocy + (ev.xmotion.y - y1);
+			*c->x = ocx + (ev.xmotion.x - x1);
+			*c->y = ocy + (ev.xmotion.y - y1);
 			resize(c, False);
 			break;
 		case ButtonRelease:
@@ -94,12 +94,12 @@ resizemouse(Client *c)
 	XEvent ev;
 	int ocx, ocy;
 
-	ocx = c->x;
-	ocy = c->y;
+	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->h);
+	XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, *c->w, *c->h);
 	for(;;) {
 		XMaskEvent(dpy, MouseMask | ExposureMask, &ev);
 		switch(ev.type) {
@@ -109,10 +109,10 @@ resizemouse(Client *c)
 			break;
 		case MotionNotify:
 			XSync(dpy, False);
-			c->w = abs(ocx - ev.xmotion.x);
-			c->h = abs(ocy - ev.xmotion.y);
-			c->x = (ocx <= ev.xmotion.x) ? ocx : ocx - c->w;
-			c->y = (ocy <= ev.xmotion.y) ? ocy : ocy - c->h;
+			*c->w = abs(ocx - ev.xmotion.x);
+			*c->h = abs(ocy - ev.xmotion.y);
+			*c->x = (ocx <= ev.xmotion.x) ? ocx : ocx - *c->w;
+			*c->y = (ocy <= ev.xmotion.y) ? ocy : ocy - *c->h;
 			resize(c, True);
 			break;
 		case ButtonRelease:
@@ -187,13 +187,13 @@ configurerequest(XEvent *e)
 	if((c = getclient(ev->window))) {
 		gravitate(c, True);
 		if(ev->value_mask & CWX)
-			c->x = ev->x;
+			*c->x = ev->x;
 		if(ev->value_mask & CWY)
-			c->y = ev->y;
+			*c->y = ev->y;
 		if(ev->value_mask & CWWidth)
-			c->w = ev->width;
+			*c->w = ev->width;
 		if(ev->value_mask & CWHeight)
-			c->h = ev->height;
+			*c->h = ev->height;
 		if(ev->value_mask & CWBorderWidth)
 			c->border = 1;
 		gravitate(c, False);

main.c

@@ -261,6 +261,7 @@ main(int argc, char *argv[])
 	XChangeWindowAttributes(dpy, root, CWEventMask | CWCursor, &wa);
 
 	strcpy(stext, "dwm-"VERSION);
+
 	scan();
 
 	/* main event loop, reads status text from stdin as well */

tag.c

@@ -43,8 +43,10 @@ dofloat(Arg *arg)
 
 	arrange = dofloat;
 	for(c = clients; c; c = c->next) {
-		if(c->tags[tsel])
+		setgeom(c);
+		if(c->tags[tsel]) {
 			resize(c, True);
+		}
 		else
 			ban(c);
 	}
@@ -75,6 +77,7 @@ dotile(Arg *arg)
 		h = sh - bh;
 
 	for(i = 0, c = clients; c; c = c->next) {
+		setgeom(c);
 		if(c->tags[tsel]) {
 			if(c->isfloat) {
 				higher(c);
@@ -82,22 +85,22 @@ dotile(Arg *arg)
 				continue;
 			}
 			if(n == 1) {
-				c->x = sx;
-				c->y = sy + bh;
-				c->w = sw - 2 * c->border;
-				c->h = sh - 2 * c->border - bh;
+				*c->x = sx;
+				*c->y = sy + bh;
+				*c->w = sw - 2 * c->border;
+				*c->h = sh - 2 * c->border - bh;
 			}
 			else if(i == 0) {
-				c->x = sx;
-				c->y = sy + bh;
-				c->w = mw - 2 * c->border;
-				c->h = sh - 2 * c->border - bh;
+				*c->x = sx;
+				*c->y = sy + bh;
+				*c->w = mw - 2 * c->border;
+				*c->h = sh - 2 * c->border - bh;
 			}
 			else {
-				c->x = sx + mw;
-				c->y = sy + (i - 1) * h + bh;
-				c->w = w - 2 * c->border;
-				c->h = h - 2 * c->border;
+				*c->x = sx + mw;
+				*c->y = sy + (i - 1) * h + bh;
+				*c->w = w - 2 * c->border;
+				*c->h = h - 2 * c->border;
 			}
 			resize(c, False);
 			i++;