// translate an X, Y value from one window to the euclidean space of another. Useful for translating
// the arbitrary position of some window's (0,0) point into root window space
func TranslateCoordinatesSync(X *xgbutil.XUtil, src, dest xproto.Window, x, y int) (dest_x, dest_y int, err error) {
Xx, Xy := int16(x), int16(y)
cookie := xproto.TranslateCoordinates(X.Conn(), src, dest, Xx, Xy)
reply, err := cookie.Reply()
if err != nil {
return 0, 0, err
}
dest_x, dest_y = int(reply.DstX), int(reply.DstY)
return
}
func Focused(c *xgb.Conn) uint32 {
incookie := xproto.GetInputFocus(c)
rep, err := incookie.Reply()
if err != nil {
return 0
}
win := rep.Focus
trcookie := xproto.TranslateCoordinates(c, win,
xproto.Setup(c).DefaultScreen(c).Root,
0, 0)
att, err := trcookie.Reply()
if err != nil {
return 0
}
x, y := int32(att.DstX), int32(att.DstY)
for i, size := range sizes {
if size.X <= x && size.X+size.W >= x && size.Y <= y && size.Y+size.H >= y {
return uint32(i)
}
}
return 0
}