graph-snip<%> : interface?

(send a-graph-snip add-child child) → void?

child : (is-a?/c graph-snip<%>)

Adds a child of this snip. Instead of calling this method, consider using the add-links function.

(send a-graph-snip add-parent parent) → void?

parent : (is-a?/c graph-snip<%>)

(send a-graph-snip add-parent   parent             mouse-over-pen             mouse-off-pen             mouse-over-brush             mouse-off-brush)   →   void?

parent : (is-a?/c graph-snip<%>)

mouse-over-pen : (or/c false/c (is-a?/c pen%))

mouse-off-pen : (or/c false/c (is-a?/c pen%))

mouse-over-brush : (or/c false/c (is-a?/c brush%))

mouse-off-brush : (or/c false/c (is-a?/c brush%))

Adds a parent of this snip. Instead of calling this method, consider using the add-links function.

(send a-graph-snip get-children) → (listof snip%)

returns a list of snips that implement graph-snip<%>. Each of these snips will have a line drawn from it, pointing at this snip.

(send a-graph-snip get-parents) → (listof graph-snip<%>)

Returns a list of snips that implement graph-snip<%>. Each of these snips will have a line drawn to it, starting from this snip.

(send a-graph-snip remove-child child) → void?

child : (is-a?/c graph-snip<%>)

Removes a child snip from this snip. Be sure to remove this snip as a parent from the argument, too.

(send a-graph-snip remove-parent parent) → void?

parent : (is-a?/c graph-snip<%>)

Removes a parent snip from this snip. Be sure to remove this snip as a child from the argument, too.