Packer operators

addPackerComponents :: Packer -> PackerAttributes -> [DisplayHandle] -> IO ()

add a set of components to the packing area, using the supplied attributes to specify how to.

setPackerComponents :: Packer -> PackerAttributes -> [DisplayHandle] -> IO ()

replace the current set of components controlled by the packer. The replaced ones are unmapped and told to quit.

getPackerComponents :: Packer -> IO [ComponentHandle]

return set of currently packed components.

resizePacker :: Packer -> Size -> IO ()

change the size of the packing area.

getPackerSize :: Packer -> IO Size

return current size of the packing area.

getPackerGeo :: Packer -> IO Geometry

return the packer's geometric requirements.

getPackerElts :: Packer -> IO [(PackerAttributes, ComponentHandle)]

return the set of packed components together with the attributes they are being packed with.