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Class com.trumphurst.controls.Tree 

java.lang.Object
   |
   +----com.trumphurst.controls.Tree
public class Tree
extends Object
Basic class to hold a tree structure.

Variable Index

o o
The object held in the Tree.

Constructor Index

o Tree(Object)
Construct a Tree, with its attached Object.

Method Index

o addChild(Tree)
Add a child.
o deleteChild()
Delete this item (and all its children) from the Tree.
o depth()
Work out the depth of the current item.
o getFirst()
Return the first child of this item, or null if there are no children.
o getLast()
Return the last child of this item, or null if there are no children.
o getNext()
Return the next sibling of this item, or null if there are no more siblings.
o getParent()
Return the parent of this item, or null if root.
o getRoot()
Get the root of the current item.
o hasChildren()
Are there any children?
o isExpanded()
Indicates whether children are visible in a View.
o isFirst()
Is this the first child of its parent?
o isLast()
Is this the last child of its parent? This is useful when drawing a representation of the Tree.
o isRoot()
Is this the root?
o processTree(TreeProcessor)
Run the TreeProcessor on every item in the Tree.
o toString()
Standard toString method forwards to the attached Object.

Variables

o o 
 public Object o
The object held in the Tree. Note that this is public, so you can change the Object without having to change the Tree structure.

Constructors

o Tree 
 public Tree(Object o)
Construct a Tree, with its attached Object.

Parameters:
o - the Object to attach.

Methods

o hasChildren 
 public boolean hasChildren()
Are there any children?

o isRoot 
 public boolean isRoot()
Is this the root?

o isLast 
 public boolean isLast()
Is this the last child of its parent? This is useful when drawing a representation of the Tree.

o isFirst 
 public boolean isFirst()
Is this the first child of its parent?

o getParent 
 public Tree getParent()
Return the parent of this item, or null if root.

o getFirst 
 public Tree getFirst()
Return the first child of this item, or null if there are no children.

o getLast 
 public Tree getLast()
Return the last child of this item, or null if there are no children.

o getNext 
 public Tree getNext()
Return the next sibling of this item, or null if there are no more siblings.

o isExpanded 
 public boolean isExpanded()
Indicates whether children are visible in a View.

o depth 
 public int depth()
Work out the depth of the current item.

o getRoot 
 public Tree getRoot()
Get the root of the current item.

o addChild 
 public void addChild(Tree child)
Add a child.

o deleteChild 
 public boolean deleteChild()
Delete this item (and all its children) from the Tree. Note that the children of this item will still be attached to it.

Returns:
true only if this is the root.
o processTree 
 public boolean processTree(TreeProcessor p)
Run the TreeProcessor on every item in the Tree. The TreeProcessor continueProcess method is called for each item in the tree, in a depth-first search. If the continueProcess method returns false for any item, the search is stopped.

Parameters:
p - the TreeProcessor to process the items.
Returns:
false if any continueProcess returned false, true otherwise.
o toString 
 public String toString()
Standard toString method forwards to the attached Object.

Overrides:
toString in class Object 
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