/* process with:
dot text_layout.gv -Tsvg > text_layout.svg
dot text_layout.gv -Tpng > text_layout.png
*/
digraph textrendering {
    Text [color=red]
    text_layout[shape=box]
    renderer [color=red]
    
    Text -> text_layout 
    text_layout -> Freetype[dir=both]
    text_layout -> text_itemizer [dir=both]
    text_layout -> HarfBuzz [dir=both]
    text_layout -> text_layout [label="line breaking"]
    text_layout -> text_line
    text_line -> format_run
    format_run -> char_properties
    format_run -> glyph_info



    text_layout -> placement_finder
    placement_finder -> glyph_positions
    glyph_positions -> renderer
    
//     { rank=same; text_layout HarfBuzz Freetype text_itemizer }
}