Client API. The Codename One framework your app is built on: this runs on the device, not in a backend.

public class TreeArrangement

Object
TreeArrangement

An arrangement for hierarchies, such as an org chart or a file tree: every node below its parent, parents centred over their children, and no subtree overlapping another.

A graph that is not a tree is laid out by a spanning tree found breadth first from the root (setRootId, or every node no edge enters); the other edges are drawn straight between wherever their ends land. Several roots make a forest, laid out side by side.

Fields

`public static final int TOP_TO_BOTTOM = 0`	Children below their parent.
`public static final int LEFT_TO_RIGHT = 1`	Children to the right of their parent, as in a mind map or file tree.

Constructors

public TreeArrangement()

Methods

`public int getDirection()`	`TOP_TO_BOTTOM`, the default, or `LEFT_TO_RIGHT`.
`public void setDirection(int direction)`	Sets the direction the tree grows.
`public double getLevelGap()`	The space between a parent and its children in world units.
`public void setLevelGap(double levelGap)`	Sets the space between levels.
`public double getSiblingGap()`	The space between neighbouring subtrees in world units.
`public void setSiblingGap(double siblingGap)`	Sets the space between neighbouring subtrees.
`public` `String getRootId()`	The id of the root, or null to start from every node no edge enters.
`public void setRootId(String rootId)`	Sets the root.
`public` `ArrangementResult arrange(GraphModel model)`	Computes a position for every node, and a route for edges the arrangement bends.

Inherited methods

From Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait, clone, finalize

Field details

TOP_TO_BOTTOM

public static final int TOP_TO_BOTTOM = 0

Children below their parent.

LEFT_TO_RIGHT

public static final int LEFT_TO_RIGHT = 1

Children to the right of their parent, as in a mind map or file tree.

Constructor details

TreeArrangement

public TreeArrangement()

Method details

getDirection

public int getDirection()

TOP_TO_BOTTOM, the default, or LEFT_TO_RIGHT.

setDirection

public void setDirection(int direction)

Sets the direction the tree grows.

getLevelGap

public double getLevelGap()

The space between a parent and its children in world units.

setLevelGap

public void setLevelGap(double levelGap)

Sets the space between levels.

getSiblingGap

public double getSiblingGap()

The space between neighbouring subtrees in world units.

setSiblingGap

public void setSiblingGap(double siblingGap)

Sets the space between neighbouring subtrees.

getRootId

public String getRootId()

The id of the root, or null to start from every node no edge enters.

setRootId

public void setRootId(String rootId)

Sets the root.

arrange

public ArrangementResult arrange(GraphModel model)

Computes a position for every node, and a route for edges the arrangement bends.