+gravitate(Client *c, Bool invert) {
+ int dx = 0, dy = 0;
+
+ switch(c->grav) {
+ default:
+ break;
+ case StaticGravity:
+ case NorthWestGravity:
+ case NorthGravity:
+ case NorthEastGravity:
+ dy = c->border;
+ break;
+ case EastGravity:
+ case CenterGravity:
+ case WestGravity:
+ dy = -(c->h / 2) + c->border;
+ break;
+ case SouthEastGravity:
+ case SouthGravity:
+ case SouthWestGravity:
+ dy = -(c->h);
+ break;
+ }
+ switch (c->grav) {
+ default:
+ break;
+ case StaticGravity:
+ case NorthWestGravity:
+ case WestGravity:
+ case SouthWestGravity:
+ dx = c->border;
+ break;
+ case NorthGravity:
+ case CenterGravity:
+ case SouthGravity:
+ dx = -(c->w / 2) + c->border;
+ break;
+ case NorthEastGravity:
+ case EastGravity:
+ case SouthEastGravity:
+ dx = -(c->w + c->border);
+ break;
+ }
+ if(invert) {
+ dx = -dx;
+ dy = -dy;
+ }
+ c->x += dx;
+ c->y += dy;
+}
+
+void
+killclient(Arg *arg) {
+ if(!sel)
+ return;
+ if(sel->proto & PROTODELWIN)
+ sendevent(sel->win, wmatom[WMProtocols], wmatom[WMDelete]);
+ else
+ XKillClient(dpy, sel->win);
+}
+
+void
+manage(Window w, XWindowAttributes *wa) {
+ Client *c;
+ Window trans;
+ XSetWindowAttributes twa;
+
+ c = emallocz(sizeof(Client));
+ c->tags = emallocz(ntags * sizeof(Bool));
+ c->win = w;
+ c->border = 0;
+ c->x = c->tx = wa->x;
+ c->y = c->ty = wa->y;
+ c->w = c->tw = wa->width;
+ c->h = wa->height;
+ c->th = bh;
+ updatesize(c);
+ if(c->x + c->w + 2 * BORDERPX > sw)
+ c->x = sw - c->w - 2 * BORDERPX;
+ if(c->x < sx)
+ c->x = sx;
+ if(c->y + c->h + 2 * BORDERPX > sh)
+ c->y = sh - c->h - 2 * BORDERPX;
+ if(c->h != sh && c->y < bh)
+ c->y = bh;
+ c->proto = getproto(c->win);
+ XSelectInput(dpy, c->win,
+ StructureNotifyMask | PropertyChangeMask | EnterWindowMask);
+ XGetTransientForHint(dpy, c->win, &trans);
+ twa.override_redirect = 1;
+ twa.background_pixmap = ParentRelative;
+ twa.event_mask = ExposureMask | EnterWindowMask;
+ c->twin = XCreateWindow(dpy, root, c->tx, c->ty, c->tw, c->th,
+ 0, DefaultDepth(dpy, screen), CopyFromParent,
+ DefaultVisual(dpy, screen),
+ CWOverrideRedirect | CWBackPixmap | CWEventMask, &twa);
+ grabbuttons(c, False);
+ updatetitle(c);
+ settags(c, getclient(trans));
+ if(!c->isfloat)
+ c->isfloat = trans || c->isfixed;
+ resizetitle(c);
+ if(clients)
+ clients->prev = c;
+ c->next = clients;
+ c->snext = stack;
+ stack = clients = c;
+ ban(c);
+ XMapWindow(dpy, c->win);
+ XMapWindow(dpy, c->twin);
+ if(isvisible(c))
+ focus(c);
+ arrange();
+}
+
+void
+resize(Client *c, Bool sizehints, Corner sticky) {
+ int bottom = c->y + c->h;
+ int right = c->x + c->w;
+ XWindowChanges wc;
+
+ if(sizehints) {
+ if(c->incw)
+ c->w -= (c->w - c->basew) % c->incw;
+ if(c->inch)
+ c->h -= (c->h - c->baseh) % c->inch;
+ 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(sticky == TopRight || sticky == BotRight)
+ c->x = right - c->w;
+ if(sticky == BotLeft || sticky == BotRight)
+ c->y = bottom - c->h;
+ /* offscreen appearance fixes */
+ if(c->x + c->w < sx)
+ c->x = sx;
+ if(c->y + c->h < bh)
+ c->y = bh;
+ if(c->x > sw)
+ c->x = sw - c->w;
+ if(c->y > sh)
+ c->y = sh - c->h;
+ resizetitle(c);
+ wc.x = c->x;
+ wc.y = c->y;
+ wc.width = c->w;
+ wc.height = c->h;
+ if(c->w == sw && c->h == sh)
+ wc.border_width = 0;
+ else
+ wc.border_width = BORDERPX;
+ XConfigureWindow(dpy, c->win, CWX | CWY | CWWidth | CWHeight | CWBorderWidth, &wc);
+ configure(c);
+ XSync(dpy, False);
+}
+
+void
+resizetitle(Client *c) {
+ c->tw = textw(c->name);
+ if(c->tw > c->w)
+ c->tw = c->w + 2 * BORDERPX;
+ c->tx = c->x + c->w - c->tw + 2 * BORDERPX;
+ c->ty = c->y;
+ if(isvisible(c))
+ XMoveResizeWindow(dpy, c->twin, c->tx, c->ty, c->tw, c->th);
+ else
+ XMoveResizeWindow(dpy, c->twin, c->tx + 2 * sw, c->ty, c->tw, c->th);
+}
+
+void
+updatesize(Client *c) {