func query(X *xgbutil.XUtil) xinerama.Heads {
if X.ExtInitialized("XINERAMA") {
heads, err := xinerama.PhysicalHeads(X)
if err != nil || len(heads) == 0 {
if err == nil {
logger.Warning.Printf("Could not find any physical heads " +
"with the Xinerama extension.")
} else {
logger.Warning.Printf("Could not load physical heads via "+
"Xinerama: %s", err)
}
logger.Warning.Printf("Assuming one head with size equivalent " +
"to the root window.")
} else {
return heads
}
}
// If we're here, then something went wrong or the Xinerama extension
// isn't available. So query the root window for its geometry and use that.
rgeom := xwindow.RootGeometry(X)
return xinerama.Heads{
xrect.New(rgeom.X(), rgeom.Y(), rgeom.Width(), rgeom.Height()),
}
}
func headGeom(X *xgbutil.XUtil) xrect.Rect {
if X.ExtInitialized("XINERAMA") {
heads, err := xinerama.PhysicalHeads(X)
if err == nil {
return heads[0]
}
}
geom, err := xwindow.New(X, X.RootWin()).Geometry()
fatal(err)
return geom
}