/**
 * If the window is not float
 * makes it float and move it
 * to the centre
 */
void centre() {
    Desktop *d = &desktops[currdeskidx];
    XWindowAttributes wa;
    if (!d->curr || !XGetWindowAttributes(dis, d->curr->win, &wa)) return;
    if (!d->curr->isfloat && !d->curr->istrans) { d->curr->isfloat = True; tile(d); focus(d->curr, d); }
    XMoveResizeWindow(dis, d->curr->win, (ww-wa.width)/2 - BORDER_WIDTH,
                                        (wh + PANEL_HEIGHT -wa.height)/2 - BORDER_WIDTH,
                                        wa.width , wa.height ); 
}

/**
 * Makes the window float and takes all 
 * available space 
 */
void fullscreen() {
    Desktop *d = &desktops[currdeskidx];
    XWindowAttributes wa;
    if (!d->curr->isfloat) { d->curr->isfloat=True; tile(d); focus(d->curr, d); }
    wa.width=ww - (USELESSGAP + BORDER_WIDTH)*2;
    wa.height=wh + PANEL_HEIGHT - (USELESSGAP + BORDER_WIDTH)*2;
    XMoveResizeWindow(dis, d->curr->win, (ww-wa.width)/2 - BORDER_WIDTH, 
                           (wh + PANEL_HEIGHT -wa.height)/2 - BORDER_WIDTH,
                            wa.width,
                            wa.height);
}

/**
 * Makes the window float and back tiling
 */
void togglefloat() {
    Desktop *d = &desktops[currdeskidx];
    if (!d->curr->isfloat) 
        d->curr->isfloat=True; 
    else 
        d->curr->isfloat=False; 
    tile(d); 
    focus(d->curr, d); 
}