''' Continue exploration of image manipulation '''

from PIL import Image

def dup( original ) :
    ''' Return a new image that is copy of the original '''

    # get dimensions of the original
    ow, oh = original.size

    # set dimensions of the copy
    nw, nh = ..., ...              

    # get a new appropriately sized image
    new_image = Image.new( 'RGB', ( nw, nh ) )

    # fill in every pixel of the new image
    for nx in range( 0, nw ) :      # consider every x value for the new image
        for ny in range( 0, nh ) :  # in tandem with every y value for the image
            
            # set the spot to be filled in the new image
            nspot = (nx ,ny )

            # determine the corresponding spot in the original to be copied
            ox = ...
            oy = ...

            ospot = ( ox, oy )

            # get the pixel at the ospot
            opixel = original.getpixel( ospot )

            # determine the pixel for the new image
            npixel = ...

            # set the nspot in the new image
            new_image.putpixel( nspot, npixel )

    # return the filled in new image
    return new_image

def mirror( original ) :
    ''' Return a new image that mirrors the original '''
    pass

def flip( original ) :
    ''' Return a new image that is a flipping of the original '''

    pass

if ( __name__ == '__main__' ) :

    import url
    import manip

    # get the image
    link = input( 'Enter web picture location: ' )
    original = url.get_web_image( link )

    # manipulate the image and show the effect

    try :  # try duplication
        du = manip.dup( original );                

        if ( type( du ) == type( original ) ) :
            du.show();   input( 'Enter when ready: ' )
        else :
            print( 'dup(): did not return an image' )
    except :
            print( 'dup(): did not complete' )


    try :  # try mirroring
        mi = manip.mirror( original );                

        if ( type( mi ) == type( original ) ) :
            mi.show();   input( 'Enter when ready: ' )
        else :
            print( 'mirror(): did not return an image' )
    except :
            print( 'mirror(): did not complete' )


    try :  # try flipping
        fl = manip.flip( original );                

        if ( type( fl ) == type( original ) ) :
            fl.show();   input( 'Enter when ready: ' )
        else :
            print( 'flip(): did not return an image' )
    except :
            print( 'dup(): did not complete' )