javax.swing

Class JTree

public class JTree extends JComponent implements Scrollable, Accessible

Nested Class Summary
protected class	JTree.AccessibleJTree This class implements accessibility support for the JTree class.
static class	JTree.DynamicUtilTreeNode
protected static class	JTree.EmptySelectionModel A TreeModel that does not allow anything to be selected.
protected class	JTree.TreeModelHandler Listens to the model of the JTree and updates the property `expandedState` if nodes are removed or changed.
protected class	JTree.TreeSelectionRedirector This redirects TreeSelectionEvents and rewrites the source of it to be this JTree.

Field Summary
static String	ANCHOR_SELECTION_PATH_PROPERTY
protected TreeCellEditor	cellEditor
protected TreeCellRenderer	cellRenderer
static String	CELL_EDITOR_PROPERTY
static String	CELL_RENDERER_PROPERTY
protected boolean	editable
static String	EDITABLE_PROPERTY
static String	EXPANDS_SELECTED_PATHS_PROPERTY
protected boolean	invokesStopCellEditing
static String	INVOKES_STOP_CELL_EDITING_PROPERTY
protected boolean	largeModel
static String	LARGE_MODEL_PROPERTY
static String	LEAD_SELECTION_PATH_PROPERTY
protected boolean	rootVisible
protected int	rowHeight
static String	ROOT_VISIBLE_PROPERTY
static String	ROW_HEIGHT_PROPERTY
protected boolean	scrollsOnExpand
protected TreeSelectionModel	selectionModel
protected JTree.TreeSelectionRedirector	selectionRedirector Redirects TreeSelectionEvents so that the source is this JTree.
protected boolean	showsRootHandles
static String	SCROLLS_ON_EXPAND_PROPERTY
static String	SELECTION_MODEL_PROPERTY
static String	SHOWS_ROOT_HANDLES_PROPERTY
protected int	toggleClickCount
protected TreeModel	treeModel
protected TreeModelListener	treeModelListener Handles TreeModelEvents to update the expandedState.
static String	TOGGLE_CLICK_COUNT_PROPERTY
static String	TREE_MODEL_PROPERTY
protected int	visibleRowCount
static String	VISIBLE_ROW_COUNT_PROPERTY

Constructor Summary
	JTree() Creates a new `JTree` object.
	JTree(Hashtable<?,?> value) Creates a new `JTree` object.
	JTree(Object[] value) Creates a new `JTree` object.
	JTree(TreeModel model) Creates a new `JTree` object.
	JTree(TreeNode root) Creates a new `JTree` object.
	JTree(TreeNode root, boolean asksAllowChildren) Creates a new `JTree` object.
	JTree(Vector<?> value) Creates a new `JTree` object.

Method Summary
void	addSelectionInterval(int index0, int index1) Select all rows between the two given indexes, inclusive.
void	addSelectionPath(TreePath path)
void	addSelectionPaths(TreePath[] paths)
void	addSelectionRow(int row)
void	addSelectionRows(int[] rows)
void	addTreeExpansionListener(TreeExpansionListener listener) Adds a `TreeExpansionListener` object to the tree.
void	addTreeSelectionListener(TreeSelectionListener listener) Adds a `TreeSelctionListener` object to the tree.
void	addTreeWillExpandListener(TreeWillExpandListener listener) Adds a `TreeWillExpandListener` object to the tree.
void	cancelEditing()
void	clearSelection()
protected void	clearToggledPaths()
void	collapsePath(TreePath path)
void	collapseRow(int row)
String	convertValueToText(Object value, boolean selected, boolean expanded, boolean leaf, int row, boolean hasFocus) Converts the specified value to a String.
protected static TreeModel	createTreeModel(Object value) Creates a new `TreeModel` object.
protected TreeModelListener	createTreeModelListener() Creates and returns an instance of {@link TreeModelHandler}.
void	expandPath(TreePath path)
void	expandRow(int row)
void	fireTreeCollapsed(TreePath path) Notifies all listeners that the tree was collapsed.
void	fireTreeExpanded(TreePath path) Notifies all listeners that the tree was expanded.
void	fireTreeWillCollapse(TreePath path) Notifies all listeners that the tree will collapse.
void	fireTreeWillExpand(TreePath path) Notifies all listeners that the tree will expand.
protected void	fireValueChanged(TreeSelectionEvent event) Notifies all listeners when the selection of the tree changed.
AccessibleContext	getAccessibleContext() Gets the AccessibleContext associated with this `JTree`.
TreePath	getAnchorSelectionPath()
TreeCellEditor	getCellEditor()
TreeCellRenderer	getCellRenderer()
TreePath	getClosestPathForLocation(int x, int y)
int	getClosestRowForLocation(int x, int y)
protected static TreeModel	getDefaultTreeModel() Returns a sample TreeModel that can be used in a JTree.
protected Enumeration<TreePath>	getDescendantToggledPaths(TreePath parent)
boolean	getDragEnabled() Return the value of the `dragEnabled` property.
TreePath	getEditingPath()
Enumeration<TreePath>	getExpandedDescendants(TreePath path) Returns all TreePath objects which are a descendants of the given path and are exapanded at the moment of the execution of this method.
boolean	getExpandsSelectedPaths()
boolean	getInvokesStopCellEditing()
Object	getLastSelectedPathComponent()
TreePath	getLeadSelectionPath()
int	getLeadSelectionRow()
int	getMaxSelectionRow()
int	getMinSelectionRow()
TreeModel	getModel() Returns the model of this `JTree` object.
TreePath	getNextMatch(String prefix, int startingRow, Position.Bias bias) Returns the next table element (beginning from the row `startingRow` that starts with `prefix`.
protected TreePath[]	getPathBetweenRows(int index0, int index1) Get the pathes that are displayes between the two given rows.
Rectangle	getPathBounds(TreePath path)
TreePath	getPathForLocation(int x, int y)
TreePath	getPathForRow(int row)
Dimension	getPreferredScrollableViewportSize() Returns the preferred viewport size.
Rectangle	getRowBounds(int row)
int	getRowCount()
int	getRowForLocation(int x, int y)
int	getRowForPath(TreePath path)
int	getRowHeight()
int	getScrollableBlockIncrement(Rectangle visibleRect, int orientation, int direction)
boolean	getScrollableTracksViewportHeight()
boolean	getScrollableTracksViewportWidth()
int	getScrollableUnitIncrement(Rectangle visibleRect, int orientation, int direction) Return the preferred scrolling amount (in pixels) for the given scrolling direction and orientation.
boolean	getScrollsOnExpand()
int	getSelectionCount()
TreeSelectionModel	getSelectionModel()
TreePath	getSelectionPath()
TreePath[]	getSelectionPaths()
int[]	getSelectionRows()
boolean	getShowsRootHandles()
int	getToggleClickCount()
TreeExpansionListener[]	getTreeExpansionListeners() Returns all added `TreeExpansionListener` objects.
TreeSelectionListener[]	getTreeSelectionListeners() Returns all added `TreeSelectionListener` objects.
TreeWillExpandListener[]	getTreeWillExpandListeners() Returns all added `TreeWillExpandListener` objects.
TreeUI	getUI() Return the UI associated with this `JTree` object.
String	getUIClassID() This method returns the String ID of the UI class of Separator.
int	getVisibleRowCount()
boolean	hasBeenExpanded(TreePath path)
boolean	isCollapsed(TreePath path)
boolean	isCollapsed(int row)
boolean	isEditable() Checks if this `JTree` object is editable.
boolean	isEditing()
boolean	isExpanded(TreePath path)
boolean	isExpanded(int row)
boolean	isFixedRowHeight()
boolean	isLargeModel()
boolean	isPathEditable(TreePath path)
boolean	isPathSelected(TreePath path)
boolean	isRootVisible() Checks if the root element is visible.
boolean	isRowSelected(int row) Returns `true` when the specified row is selected, `false` otherwise.
boolean	isSelectionEmpty()
boolean	isVisible(TreePath path)
void	makeVisible(TreePath path)
protected String	paramString() A String representation of this JTree.
protected boolean	removeDescendantSelectedPaths(TreePath path, boolean includeSelected) Removes any paths in the current set of selected paths that are descendants of `path`.
protected void	removeDescendantToggledPaths(Enumeration<TreePath> toRemove) Removes any descendants of the TreePaths in toRemove that have been expanded.
void	removeSelectionInterval(int index0, int index1)
void	removeSelectionPath(TreePath path)
void	removeSelectionPaths(TreePath[] paths)
void	removeSelectionRow(int row)
void	removeSelectionRows(int[] rows)
void	removeTreeExpansionListener(TreeExpansionListener listener) Removes a `TreeExpansionListener` object from the tree.
void	removeTreeSelectionListener(TreeSelectionListener listener) Removes a `TreeSelectionListener` object from the tree.
void	removeTreeWillExpandListener(TreeWillExpandListener listener) Removes a `TreeWillExpandListener` object from the tree.
void	scrollPathToVisible(TreePath path)
void	scrollRowToVisible(int row)
void	setAnchorSelectionPath(TreePath path)
void	setCellEditor(TreeCellEditor editor)
void	setCellRenderer(TreeCellRenderer newRenderer)
void	setDragEnabled(boolean enabled) Set the `dragEnabled` property.
void	setEditable(boolean flag) Sets the `editable` property.
protected void	setExpandedState(TreePath path, boolean state)
void	setExpandsSelectedPaths(boolean flag)
void	setInvokesStopCellEditing(boolean invoke)
void	setLargeModel(boolean large)
void	setLeadSelectionPath(TreePath path)
void	setModel(TreeModel model) Sets the model to use in `JTree`.
void	setRootVisible(boolean flag)
void	setRowHeight(int height)
void	setScrollsOnExpand(boolean scroll)
void	setSelectionInterval(int index0, int index1)
void	setSelectionModel(TreeSelectionModel model)
void	setSelectionPath(TreePath path)
void	setSelectionPaths(TreePath[] paths)
void	setSelectionRow(int row)
void	setSelectionRows(int[] rows)
void	setShowsRootHandles(boolean flag)
void	setToggleClickCount(int count)
void	setUI(TreeUI ui) Sets the UI associated with this `JTree` object.
void	setVisibleRowCount(int rows)
void	startEditingAtPath(TreePath path)
boolean	stopEditing()
void	treeDidChange() Sent when the tree has changed enough that we need to resize the bounds, but not enough that we need to remove the expanded node set (e.g nodes were expanded or collapsed, or nodes were inserted into the tree).
void	updateUI() This method resets the UI used to the Look and Feel defaults..

Field Detail

ANCHOR_SELECTION_PATH_PROPERTY

public static final String ANCHOR_SELECTION_PATH_PROPERTY

Since: 1.3

cellEditor

protected transient TreeCellEditor cellEditor

cellRenderer

protected transient TreeCellRenderer cellRenderer

CELL_EDITOR_PROPERTY

public static final String CELL_EDITOR_PROPERTY

CELL_RENDERER_PROPERTY

public static final String CELL_RENDERER_PROPERTY

EDITABLE_PROPERTY

public static final String EDITABLE_PROPERTY

EXPANDS_SELECTED_PATHS_PROPERTY

public static final String EXPANDS_SELECTED_PATHS_PROPERTY

Since: 1.3

invokesStopCellEditing

protected boolean invokesStopCellEditing

INVOKES_STOP_CELL_EDITING_PROPERTY

public static final String INVOKES_STOP_CELL_EDITING_PROPERTY

LARGE_MODEL_PROPERTY

public static final String LARGE_MODEL_PROPERTY

LEAD_SELECTION_PATH_PROPERTY

public static final String LEAD_SELECTION_PATH_PROPERTY

Since: 1.3

ROOT_VISIBLE_PROPERTY

public static final String ROOT_VISIBLE_PROPERTY

ROW_HEIGHT_PROPERTY

public static final String ROW_HEIGHT_PROPERTY

selectionModel

protected transient TreeSelectionModel selectionModel

selectionRedirector

protected JTree.TreeSelectionRedirector selectionRedirector

Redirects TreeSelectionEvents so that the source is this JTree.

SCROLLS_ON_EXPAND_PROPERTY

public static final String SCROLLS_ON_EXPAND_PROPERTY

SELECTION_MODEL_PROPERTY

public static final String SELECTION_MODEL_PROPERTY

SHOWS_ROOT_HANDLES_PROPERTY

public static final String SHOWS_ROOT_HANDLES_PROPERTY

treeModelListener

protected transient TreeModelListener treeModelListener

Handles TreeModelEvents to update the expandedState.

TOGGLE_CLICK_COUNT_PROPERTY

public static final String TOGGLE_CLICK_COUNT_PROPERTY

TREE_MODEL_PROPERTY

public static final String TREE_MODEL_PROPERTY

VISIBLE_ROW_COUNT_PROPERTY

public static final String VISIBLE_ROW_COUNT_PROPERTY

Constructor Detail

JTree

public JTree()

Creates a new JTree object.

JTree

public JTree(Hashtable<?,?> value)

Creates a new JTree object.

Parameters: value the initial nodes in the tree

JTree

public JTree(Object[] value)

Creates a new JTree object.

Parameters: value the initial nodes in the tree

JTree

public JTree(TreeModel model)

Creates a new JTree object.

Parameters: model the model to use

JTree

public JTree(TreeNode root)

Creates a new JTree object.

Parameters: root the root node

JTree

public JTree(TreeNode root, boolean asksAllowChildren)

Creates a new JTree object.

Parameters: root the root node asksAllowChildren if false, all nodes without children are leaf nodes. If true, only nodes that do not allow children are leaf nodes.

JTree

public JTree(Vector<?> value)

Creates a new JTree object.

Parameters: value the initial nodes in the tree

Method Detail

addSelectionInterval

public void addSelectionInterval(int index0, int index1)

Select all rows between the two given indexes, inclusive. The method will not select the inner leaves and braches of the currently collapsed nodes in this interval.

Parameters: index0 the starting row, inclusive index1 the ending row, inclusive

addSelectionPath

public void addSelectionPath(TreePath path)

addSelectionPaths

public void addSelectionPaths(TreePath[] paths)

addSelectionRows

public void addSelectionRows(int[] rows)

addTreeExpansionListener

public void addTreeExpansionListener(TreeExpansionListener listener)

Adds a TreeExpansionListener object to the tree.

Parameters: listener the listener to add

addTreeSelectionListener

public void addTreeSelectionListener(TreeSelectionListener listener)

Adds a TreeSelctionListener object to the tree.

Parameters: listener the listener to add

addTreeWillExpandListener

public void addTreeWillExpandListener(TreeWillExpandListener listener)

Adds a TreeWillExpandListener object to the tree.

Parameters: listener the listener to add

convertValueToText

public String convertValueToText(Object value, boolean selected, boolean expanded, boolean leaf, int row, boolean hasFocus)

Converts the specified value to a String. This is used by the renderers of this JTree and its nodes. This implementation simply returns value.toString() and ignores all other parameters. Subclass this method to control the conversion.

Parameters: value the value that is converted to a String selected indicates if that value is selected or not expanded indicates if that value is expanded or not leaf indicates if that value is a leaf node or not row the row of the node hasFocus indicates if that node has focus or not

createTreeModel

protected static TreeModel createTreeModel(Object value)

Creates a new TreeModel object.

Parameters: value the values stored in the model

createTreeModelListener

protected TreeModelListener createTreeModelListener()

Creates and returns an instance of {@link TreeModelHandler}.

Returns: an instance of {@link TreeModelHandler}

expandPath

public void expandPath(TreePath path)

expandRow

public void expandRow(int row)

fireTreeCollapsed

public void fireTreeCollapsed(TreePath path)

Notifies all listeners that the tree was collapsed.

Parameters: path the path to the node that was collapsed

fireTreeExpanded

public void fireTreeExpanded(TreePath path)

Notifies all listeners that the tree was expanded.

Parameters: path the path to the node that was expanded

fireTreeWillCollapse

public void fireTreeWillCollapse(TreePath path)

Notifies all listeners that the tree will collapse.

Parameters: path the path to the node that will collapse

fireTreeWillExpand

public void fireTreeWillExpand(TreePath path)

Notifies all listeners that the tree will expand.

Parameters: path the path to the node that will expand

fireValueChanged

protected void fireValueChanged(TreeSelectionEvent event)

Notifies all listeners when the selection of the tree changed.

Parameters: event the event to send

getAccessibleContext

public AccessibleContext getAccessibleContext()

Gets the AccessibleContext associated with this JTree.

Returns: the associated context

getAnchorSelectionPath

public TreePath getAnchorSelectionPath()

Since: 1.3

getCellEditor

public TreeCellEditor getCellEditor()

getCellRenderer

public TreeCellRenderer getCellRenderer()

getClosestPathForLocation

public TreePath getClosestPathForLocation(int x, int y)

getClosestRowForLocation

public int getClosestRowForLocation(int x, int y)

getDefaultTreeModel

protected static TreeModel getDefaultTreeModel()

Returns a sample TreeModel that can be used in a JTree. This can be used in Bean- or GUI-Builders to show something interesting.

Returns: a sample TreeModel that can be used in a JTree

getDescendantToggledPaths

protected Enumeration<TreePath> getDescendantToggledPaths(TreePath parent)

getDragEnabled

public boolean getDragEnabled()

Return the value of the dragEnabled property.

Returns: the value

Since: 1.4

getEditingPath

public TreePath getEditingPath()

getExpandedDescendants

public Enumeration<TreePath> getExpandedDescendants(TreePath path)

Returns all TreePath objects which are a descendants of the given path and are exapanded at the moment of the execution of this method. If the state of any node is beeing toggled while this method is executing this change may be left unaccounted.

Parameters: path The parent of this request

Returns: An Enumeration containing TreePath objects

getExpandsSelectedPaths

public boolean getExpandsSelectedPaths()

Since: 1.3

getInvokesStopCellEditing

public boolean getInvokesStopCellEditing()

getLastSelectedPathComponent

public Object getLastSelectedPathComponent()

getLeadSelectionPath

public TreePath getLeadSelectionPath()

getLeadSelectionRow

public int getLeadSelectionRow()

getMaxSelectionRow

public int getMaxSelectionRow()

getMinSelectionRow

public int getMinSelectionRow()

getModel

public TreeModel getModel()

Returns the model of this JTree object.

Returns: the associated TreeModel

getNextMatch

public TreePath getNextMatch(String prefix, int startingRow, Position.Bias bias)

Returns the next table element (beginning from the row startingRow that starts with prefix. Searching is done in the direction specified by bias.

Parameters: prefix the prefix to search for in the cell values startingRow the index of the row where to start searching from bias the search direction, either {@link Position.Bias#Forward} or {@link Position.Bias#Backward}

Returns: the path to the found element or -1 if no such element has been found

Throws: IllegalArgumentException if prefix is null or startingRow is not valid

Since: 1.4

getPathBetweenRows

protected TreePath[] getPathBetweenRows(int index0, int index1)

Get the pathes that are displayes between the two given rows.

Parameters: index0 the starting row, inclusive index1 the ending row, inclusive

Returns: the array of the tree pathes

getPathBounds

public Rectangle getPathBounds(TreePath path)

getPathForLocation

public TreePath getPathForLocation(int x, int y)

getPathForRow

public TreePath getPathForRow(int row)

getPreferredScrollableViewportSize

public Dimension getPreferredScrollableViewportSize()

Returns the preferred viewport size.

Returns: the preferred size

getRowBounds

public Rectangle getRowBounds(int row)

getRowCount

public int getRowCount()

getRowForLocation

public int getRowForLocation(int x, int y)

getRowForPath

public int getRowForPath(TreePath path)

getRowHeight

public int getRowHeight()

getScrollableBlockIncrement

public int getScrollableBlockIncrement(Rectangle visibleRect, int orientation, int direction)

getScrollableTracksViewportHeight

public boolean getScrollableTracksViewportHeight()

getScrollableTracksViewportWidth

public boolean getScrollableTracksViewportWidth()

getScrollableUnitIncrement

public int getScrollableUnitIncrement(Rectangle visibleRect, int orientation, int direction)

Return the preferred scrolling amount (in pixels) for the given scrolling direction and orientation. This method handles a partially exposed row by returning the distance required to completely expose the item.

Parameters: visibleRect the currently visible part of the component. orientation the scrolling orientation direction the scrolling direction (negative - up, positive -down). The values greater than one means that more mouse wheel or similar events were generated, and hence it is better to scroll the longer distance.

getScrollsOnExpand

public boolean getScrollsOnExpand()

getSelectionCount

public int getSelectionCount()

getSelectionModel

public TreeSelectionModel getSelectionModel()

getSelectionPath

public TreePath getSelectionPath()

getSelectionPaths

public TreePath[] getSelectionPaths()

getSelectionRows

public int[] getSelectionRows()

getShowsRootHandles

public boolean getShowsRootHandles()

getToggleClickCount

public int getToggleClickCount()

Since: 1.3

getTreeExpansionListeners

public TreeExpansionListener[] getTreeExpansionListeners()

Returns all added TreeExpansionListener objects.

Returns: an array of listeners

getTreeSelectionListeners

public TreeSelectionListener[] getTreeSelectionListeners()

Returns all added TreeSelectionListener objects.

Returns: an array of listeners

getTreeWillExpandListeners

public TreeWillExpandListener[] getTreeWillExpandListeners()

Returns all added TreeWillExpandListener objects.

Returns: an array of listeners

getUI

public TreeUI getUI()

Return the UI associated with this JTree object.

Returns: the associated TreeUI object

getUIClassID

public String getUIClassID()

This method returns the String ID of the UI class of Separator.

Returns: The UI class' String ID.

getVisibleRowCount

public int getVisibleRowCount()

hasBeenExpanded

public boolean hasBeenExpanded(TreePath path)

isCollapsed

public boolean isCollapsed(TreePath path)

isCollapsed

public boolean isCollapsed(int row)

isEditable

public boolean isEditable()

Checks if this JTree object is editable.

Returns: true if this tree object is editable, false otherwise

isEditing

public boolean isEditing()

isExpanded

public boolean isExpanded(TreePath path)

isExpanded

public boolean isExpanded(int row)

isFixedRowHeight

public boolean isFixedRowHeight()

isLargeModel

public boolean isLargeModel()

isPathEditable

public boolean isPathEditable(TreePath path)

isPathSelected

public boolean isPathSelected(TreePath path)

isRootVisible

public boolean isRootVisible()

Checks if the root element is visible.

Returns: true if the root element is visible, false otherwise

isRowSelected

public boolean isRowSelected(int row)

Returns true when the specified row is selected, false otherwise. This call is delegated to the {@link TreeSelectionModel#isRowSelected(int)} method.

Parameters: row the row to check

Returns: true when the specified row is selected, false otherwise

isSelectionEmpty

public boolean isSelectionEmpty()

isVisible

public boolean isVisible(TreePath path)

makeVisible

public void makeVisible(TreePath path)

paramString

protected String paramString()

A String representation of this JTree. This is intended to be used for debugging. The returned string may be empty but may not be null.

Returns: a String representation of this JTree

removeDescendantSelectedPaths

protected boolean removeDescendantSelectedPaths(TreePath path, boolean includeSelected)

Removes any paths in the current set of selected paths that are descendants of path. If includePath is set to true and path itself is selected, then it will be removed too.

Parameters: path the path from which selected descendants are to be removed includeSelected if true then path itself will also be remove if it's selected

Returns: true if something has been removed, false otherwise

Since: 1.3

removeDescendantToggledPaths

protected void removeDescendantToggledPaths(Enumeration<TreePath> toRemove)

Removes any descendants of the TreePaths in toRemove that have been expanded.

Parameters: toRemove - Enumeration of TreePaths that need to be removed from cache of toggled tree paths.

removeSelectionInterval

public void removeSelectionInterval(int index0, int index1)

removeSelectionPath

public void removeSelectionPath(TreePath path)

removeSelectionPaths

public void removeSelectionPaths(TreePath[] paths)

removeSelectionRow

public void removeSelectionRow(int row)

removeSelectionRows

public void removeSelectionRows(int[] rows)

removeTreeExpansionListener

public void removeTreeExpansionListener(TreeExpansionListener listener)

Removes a TreeExpansionListener object from the tree.

Parameters: listener the listener to remove

removeTreeSelectionListener

public void removeTreeSelectionListener(TreeSelectionListener listener)

Removes a TreeSelectionListener object from the tree.

Parameters: listener the listener to remove

removeTreeWillExpandListener

public void removeTreeWillExpandListener(TreeWillExpandListener listener)

Removes a TreeWillExpandListener object from the tree.

Parameters: listener the listener to remove

scrollPathToVisible

public void scrollPathToVisible(TreePath path)

scrollRowToVisible

public void scrollRowToVisible(int row)

setAnchorSelectionPath

public void setAnchorSelectionPath(TreePath path)

Since: 1.3

setCellEditor

public void setCellEditor(TreeCellEditor editor)

setCellRenderer

public void setCellRenderer(TreeCellRenderer newRenderer)

setDragEnabled

public void setDragEnabled(boolean enabled)

Set the dragEnabled property.

Parameters: enabled new value

Since: 1.4

setEditable

public void setEditable(boolean flag)

Sets the editable property.

Parameters: flag true to make this tree object editable, false otherwise

setExpandedState

protected void setExpandedState(TreePath path, boolean state)

setExpandsSelectedPaths

public void setExpandsSelectedPaths(boolean flag)

Since: 1.3

setInvokesStopCellEditing

public void setInvokesStopCellEditing(boolean invoke)

setLargeModel

public void setLargeModel(boolean large)

setLeadSelectionPath

public void setLeadSelectionPath(TreePath path)

Since: 1.3

setModel

public void setModel(TreeModel model)

Sets the model to use in JTree.

Parameters: model the TreeModel to use

setRootVisible

public void setRootVisible(boolean flag)

setRowHeight

public void setRowHeight(int height)

setScrollsOnExpand

public void setScrollsOnExpand(boolean scroll)

setSelectionInterval

public void setSelectionInterval(int index0, int index1)

setSelectionModel

public void setSelectionModel(TreeSelectionModel model)

setSelectionPath

public void setSelectionPath(TreePath path)

setSelectionPaths

public void setSelectionPaths(TreePath[] paths)

setSelectionRow

public void setSelectionRow(int row)

setSelectionRows

public void setSelectionRows(int[] rows)

setShowsRootHandles

public void setShowsRootHandles(boolean flag)

setToggleClickCount

public void setToggleClickCount(int count)

Since: 1.3

setUI

public void setUI(TreeUI ui)

Sets the UI associated with this JTree object.

Parameters: ui the TreeUI to associate

setVisibleRowCount

public void setVisibleRowCount(int rows)

startEditingAtPath

public void startEditingAtPath(TreePath path)

stopEditing

public boolean stopEditing()

treeDidChange

public void treeDidChange()

Sent when the tree has changed enough that we need to resize the bounds, but not enough that we need to remove the expanded node set (e.g nodes were expanded or collapsed, or nodes were inserted into the tree). You should never have to invoke this, the UI will invoke this as it needs to.

If the tree uses {@link DefaultTreeModel}, you must call {@link DefaultTreeModel#reload(TreeNode)} or {@link DefaultTreeModel#reload()} after adding or removing nodes. Following the official Java 1.5 API standard, just calling treeDidChange, repaint() or revalidate() does not update the tree appearance properly.

updateUI

public void updateUI()

This method resets the UI used to the Look and Feel defaults..