com.alee.laf.tree

Class TreeUtils

java.lang.Object

com.alee.laf.tree.TreeUtils

public final class TreeUtils
extends java.lang.Object

This class provides a set of utilities for trees. This is a library utility class and its not intended for use outside of the trees.

Constructor Summary

Constructors

Constructor and Description
TreeUtils()

Method Summary

Modifier and Type	Method and Description
static TreeState	getTreeState(javax.swing.JTree tree) Returns tree expansion and selection states.
static TreeState	getTreeState(javax.swing.JTree tree, boolean saveSelection) Returns tree expansion and selection states.
static <E extends javax.swing.tree.DefaultMutableTreeNode> void	optimizeNodes(java.util.List<E> nodes) Optimizes list of nodes by removing those which already have their parent node in the list.
static void	setTreeState(javax.swing.JTree tree, TreeState treeState) Restores tree expansion and selection states.
static void	setTreeState(javax.swing.JTree tree, TreeState treeState, boolean restoreSelection) Restores tree expansion and selection states.
static void	updateAllVisibleNodes(javax.swing.JTree tree) Updates visual representation of all visible tree nodes.

Methods inherited from class java.lang.Object

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

Constructor Detail

TreeUtils

public TreeUtils()

Method Detail

getTreeState

public static TreeState getTreeState(javax.swing.JTree tree)

Returns tree expansion and selection states. Tree nodes must be instances of UniqueNode class.

Parameters:

tree - tree to process

Returns:

tree expansion and selection states

getTreeState

public static TreeState getTreeState(javax.swing.JTree tree,
                                     boolean saveSelection)

Returns tree expansion and selection states. Tree nodes must be instances of UniqueNode class.

Parameters:

tree - tree to process

saveSelection - whether to save selection states or not

Returns:

tree expansion and selection states

setTreeState

public static void setTreeState(javax.swing.JTree tree,
                                TreeState treeState)

Restores tree expansion and selection states. Tree nodes must be instances of UniqueNode class.

Parameters:

tree - tree to process

treeState - tree expansion and selection states

setTreeState

public static void setTreeState(javax.swing.JTree tree,
                                TreeState treeState,
                                boolean restoreSelection)

Restores tree expansion and selection states. Tree nodes must be instances of UniqueNode class.

Parameters:

tree - tree to process

treeState - tree expansion and selection states

restoreSelection - whether to restore selection states or not

optimizeNodes

public static <E extends javax.swing.tree.DefaultMutableTreeNode> void optimizeNodes(java.util.List<E> nodes)

Optimizes list of nodes by removing those which already have their parent node in the list.

Parameters:

nodes - nodes list to optimize

updateAllVisibleNodes

public static void updateAllVisibleNodes(javax.swing.JTree tree)

Updates visual representation of all visible tree nodes. This will forces renderer to iterate through all those nodes and update the view appropriately.

Parameters:

tree - tree to update visible nodes for