Class TreeDragAndDropWidget

java.lang.Object

org.pushingpixels.radiance.theming.api.RadianceThemingWidget<JTree>

org.pushingpixels.radiance.theming.internal.widget.tree.dnd.TreeDragAndDropWidget

public class TreeDragAndDropWidget
extends RadianceThemingWidget<JTree>

TreeWrapper is used to handle drag and drop and popup menus in any JTree.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
(package private) class	TreeDragAndDropWidget.TreeDragGestureListener	Internal class that implements DragGestureListener.
(package private) class	TreeDragAndDropWidget.TreeDragSourceListener	Internal class that implements DragSourceListener.
(package private) class	TreeDragAndDropWidget.TreeDropTargetListener

Field Summary

Fields

Modifier and Type	Field	Description
private PropertyChangeListener	cellRendererChangeListener
private DragGestureRecognizer	dragGestureRecognizer
private DragSource	dragSource
private TreeDragAndDropWidget.TreeDropTargetListener	dropListener
private MutableTreeNode	dropNode
private DropTarget	dropTarget
private static Class[]	EMPTY_CLASS_ARRAY	This to avoid excesive creation of objects in invocation.
private static Object[]	EMPTY_OBJECT_ARRAY	This to avoid excesive creation of objects in invocation.
private TreeDragAndDropWidget.TreeDragGestureListener	gestureListener
private static Method	getTransferableMethod	This to avoid excessive reflection to find the "getTransferable" method.
private EventListenerList	listeners
private PropertyChangeListener	propertyChangeListener
private DnDCellRendererProxy	rendererProxy

Fields inherited from class RadianceThemingWidget

jcomp

Constructor Summary

Constructors

Constructor	Description
TreeDragAndDropWidget()

Method Summary

Modifier and Type	Method	Description
private void	installDnDSupport()
void	installListeners()	Installs listeners for the associated component.
private static boolean	isAncestorOf(TreeNode aPossibleParent, TreeNode aNode)	See if aPossibleParent is ancestor of aNode
private boolean	mayDropHere(String aSourceString, JTree aTargetTree, TreeNode aNode)	Invoked to decide if a given String can be dropped in the last path component of the given path.
private boolean	mayDropHere(String aSourceString, JTree aTargetTree, TreePath aPath)	Invoked to decide if a given String can be dropped in the last path component of the given path.
private boolean	mayDropHere(JTree aSourceTree, MutableTreeNode aSourceNode, TreeNode aNode)	Invoked to decide if draggedNode can be dropped into aNode.
private boolean	mayDropHere(JTree aSourceTree, MutableTreeNode aSourceNode, TreePath aPath)	Invoked to decide if draggedNode can be dropped in the last path component of the given path.
private void	resetDragAndDrop()
private void	uninstallDnDSupport()
void	uninstallListeners()	Uninstalls listeners for the associated component.

Methods inherited from class RadianceThemingWidget

installComponents, installDefaults, installUI, setComponent, uninstallComponents, uninstallDefaults, uninstallUI

Methods inherited from class Object

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

Field Details

EMPTY_CLASS_ARRAY

private static Class[] EMPTY_CLASS_ARRAY

This to avoid excesive creation of objects in invocation.

getTransferableMethod

private static Method getTransferableMethod

This to avoid excessive reflection to find the "getTransferable" method.

EMPTY_OBJECT_ARRAY

private static Object[] EMPTY_OBJECT_ARRAY

This to avoid excesive creation of objects in invocation.

rendererProxy

private DnDCellRendererProxy rendererProxy

dragSource

private DragSource dragSource

dropTarget

private DropTarget dropTarget

dropNode

private MutableTreeNode dropNode

listeners

private EventListenerList listeners

propertyChangeListener

private PropertyChangeListener propertyChangeListener

cellRendererChangeListener

private PropertyChangeListener cellRendererChangeListener

dropListener

private TreeDragAndDropWidget.TreeDropTargetListener dropListener

gestureListener

private TreeDragAndDropWidget.TreeDragGestureListener gestureListener

dragGestureRecognizer

private DragGestureRecognizer dragGestureRecognizer

Constructor Details

TreeDragAndDropWidget

public TreeDragAndDropWidget()

Method Details

installListeners

public void installListeners()

Description copied from class: RadianceThemingWidget

Installs listeners for the associated component.

Overrides:

installListeners in class RadianceThemingWidget<JTree>

installDnDSupport

private void installDnDSupport()

uninstallListeners

public void uninstallListeners()

Description copied from class: RadianceThemingWidget

Uninstalls listeners for the associated component.

Overrides:

uninstallListeners in class RadianceThemingWidget<JTree>

uninstallDnDSupport

private void uninstallDnDSupport()

mayDropHere

private boolean mayDropHere(String aSourceString,
 JTree aTargetTree,
 TreePath aPath)

Invoked to decide if a given String can be dropped in the last path component of the given path.

Parameters:

aSourceString - the String being dragged.

aPath - the path to drop into.

Returns:

true to allow the drop operation, false otherwise.

mayDropHere

private boolean mayDropHere(String aSourceString,
 JTree aTargetTree,
 TreeNode aNode)

Invoked to decide if a given String can be dropped in the last path component of the given path.

Parameters:

aSourceString - the String being dragged.

aTargetTree - the tree to drop into.

aNode - the node to drop into.

Returns:

true to allow the drop operation, false otherwise.

mayDropHere

private boolean mayDropHere(JTree aSourceTree,
 MutableTreeNode aSourceNode,
 TreePath aPath)

Invoked to decide if draggedNode can be dropped in the last path component of the given path.

Parameters:

aSourceTree - the source tree.

aSourceNode - the source node.

aPath - the path to drop into.

Returns:

true to allow the drop operation, false otherwise.

mayDropHere

private boolean mayDropHere(JTree aSourceTree,
 MutableTreeNode aSourceNode,
 TreeNode aNode)

Invoked to decide if draggedNode can be dropped into aNode.

Parameters:

aSourceTree - the source tree.

aSourceNode - the source node.

aNode - the node to drop into.

Returns:

true to allow the drop operation, false to avoid it.

isAncestorOf

private static boolean isAncestorOf(TreeNode aPossibleParent,
 TreeNode aNode)

See if aPossibleParent is ancestor of aNode

resetDragAndDrop

private void resetDragAndDrop()