► |  | Mr Lib: Extra GUI Libraries

1 | Aligned Pasteboard
2 | Bitmap Label
3 | Cache-image Snip
4 | Close Icon
5 | GIF and Animated GIF Writing
6 | Graphs
7 | Hierarchical List Control
8 | Include Bitmap
9 | Interactive Value Port
10 | Name Message
11 | Path Dialog
12 | Plot
13 | Switchable Button
14 | Image Core
15 | Te X Table
16 | Acknowledgments
| Index

▼ | 6 | Graphs

6.1 | graph-pasteboard<%>
6.2 | graph-pasteboard-mixin
6.3 | graph-snip<%>
6.4 | graph-snip-mixin
6.5 | Graph Functions

On this page:

add-child
add-parent
get-children
get-parents
remove-child
remove-parent
set-parent-link-label

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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. Instead of calling this method, consider using the remove-links function.

( 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. Instead of calling this method, consider using the remove-links function.

( send a-graph-snip set-parent-link-label |  | parent |  |  |  |
|  | label) |  | → |  | void?

parent : ( is-a?/c graph-snip<%> )
label : ( or/c false/c string/)

Changes the label on the edge going to the parent to be label. Ignored if no such egde exists.
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