uk.ac.starlink.datanode.tree

Class DataNodeJTree

java.lang.Object

java.awt.Component

java.awt.Container

javax.swing.JComponent

javax.swing.JTree

uk.ac.starlink.datanode.tree.DataNodeJTree

All Implemented Interfaces:

ImageObserver, MenuContainer, Serializable, Accessible, Scrollable

public class DataNodeJTree
extends JTree

A JTree configured to display a DataNodeTreeModel. This class doesn't add much to JTree, but provides by default a suitable cell renderer and guarantees that its model is a DataNodeTreeModel.

Author:

Mark Taylor (Starlink)

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class javax.swing.JTree

JTree.AccessibleJTree, JTree.DropLocation, JTree.DynamicUtilTreeNode, JTree.EmptySelectionModel, JTree.TreeModelHandler, JTree.TreeSelectionRedirector

Nested classes/interfaces inherited from class javax.swing.JComponent

JComponent.AccessibleJComponent

Nested classes/interfaces inherited from class java.awt.Container

Container.AccessibleAWTContainer

Nested classes/interfaces inherited from class java.awt.Component

Component.AccessibleAWTComponent, Component.BaselineResizeBehavior, Component.BltBufferStrategy, Component.FlipBufferStrategy

Field Summary

Fields inherited from class javax.swing.JTree

ANCHOR_SELECTION_PATH_PROPERTY, CELL_EDITOR_PROPERTY, CELL_RENDERER_PROPERTY, cellEditor, cellRenderer, editable, EDITABLE_PROPERTY, EXPANDS_SELECTED_PATHS_PROPERTY, INVOKES_STOP_CELL_EDITING_PROPERTY, invokesStopCellEditing, LARGE_MODEL_PROPERTY, largeModel, LEAD_SELECTION_PATH_PROPERTY, ROOT_VISIBLE_PROPERTY, rootVisible, ROW_HEIGHT_PROPERTY, rowHeight, SCROLLS_ON_EXPAND_PROPERTY, scrollsOnExpand, SELECTION_MODEL_PROPERTY, selectionModel, selectionRedirector, SHOWS_ROOT_HANDLES_PROPERTY, showsRootHandles, TOGGLE_CLICK_COUNT_PROPERTY, toggleClickCount, TREE_MODEL_PROPERTY, treeModel, treeModelListener, VISIBLE_ROW_COUNT_PROPERTY, visibleRowCount

Fields inherited from class javax.swing.JComponent

listenerList, TOOL_TIP_TEXT_KEY, ui, UNDEFINED_CONDITION, WHEN_ANCESTOR_OF_FOCUSED_COMPONENT, WHEN_FOCUSED, WHEN_IN_FOCUSED_WINDOW

Fields inherited from class java.awt.Component

accessibleContext, BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT

Fields inherited from interface java.awt.image.ImageObserver

ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH

Constructor Summary

Constructors

Constructor and Description
DataNodeJTree(DataNode root) Constructs a new DataNodeJTree from a given root node.
DataNodeJTree(DataNodeTreeModel model) Constructs a new DataNodeJTree from a suitable model.

Method Summary

Modifier and Type	Method and Description
void	expandPathLater(TreePath path) Submits a path expansion to the event queue for later invocation.
Action[]	getConnectionActions(DataNodeFactory factory) Returns a set of actions which can make connections to known virtual filestores, as supplied by ConnectorManager.
DataNode	getDraggedNode() Returns the last place the mouse button was pressed on this component.
DataNode	getDropNode() Returns the current position of the mouse if it's being dragged on this component.
Thread	recursiveExpand(DataNode dataNode) Recursively expands a given data node.
void	setModel(TreeModel model) Sets the model for this JTree to a given DataNodeTreeModel.

Methods inherited from class javax.swing.JTree

addSelectionInterval, addSelectionPath, addSelectionPaths, addSelectionRow, addSelectionRows, addTreeExpansionListener, addTreeSelectionListener, addTreeWillExpandListener, cancelEditing, clearSelection, clearToggledPaths, collapsePath, collapseRow, convertValueToText, createTreeModel, createTreeModelListener, expandPath, expandRow, fireTreeCollapsed, fireTreeExpanded, fireTreeWillCollapse, fireTreeWillExpand, fireValueChanged, getAccessibleContext, getAnchorSelectionPath, getCellEditor, getCellRenderer, getClosestPathForLocation, getClosestRowForLocation, getDefaultTreeModel, getDescendantToggledPaths, getDragEnabled, getDropLocation, getDropMode, getEditingPath, getExpandedDescendants, getExpandsSelectedPaths, getInvokesStopCellEditing, getLastSelectedPathComponent, getLeadSelectionPath, getLeadSelectionRow, getMaxSelectionRow, getMinSelectionRow, getModel, getNextMatch, getPathBetweenRows, getPathBounds, getPathForLocation, getPathForRow, getPreferredScrollableViewportSize, getRowBounds, getRowCount, getRowForLocation, getRowForPath, getRowHeight, getScrollableBlockIncrement, getScrollableTracksViewportHeight, getScrollableTracksViewportWidth, getScrollableUnitIncrement, getScrollsOnExpand, getSelectionCount, getSelectionModel, getSelectionPath, getSelectionPaths, getSelectionRows, getShowsRootHandles, getToggleClickCount, getToolTipText, getTreeExpansionListeners, getTreeSelectionListeners, getTreeWillExpandListeners, getUI, getUIClassID, getVisibleRowCount, hasBeenExpanded, isCollapsed, isCollapsed, isEditable, isEditing, isExpanded, isExpanded, isFixedRowHeight, isLargeModel, isPathEditable, isPathSelected, isRootVisible, isRowSelected, isSelectionEmpty, isVisible, makeVisible, paramString, removeDescendantSelectedPaths, removeDescendantToggledPaths, removeSelectionInterval, removeSelectionPath, removeSelectionPaths, removeSelectionRow, removeSelectionRows, removeTreeExpansionListener, removeTreeSelectionListener, removeTreeWillExpandListener, scrollPathToVisible, scrollRowToVisible, setAnchorSelectionPath, setCellEditor, setCellRenderer, setDragEnabled, setDropMode, setEditable, setExpandedState, setExpandsSelectedPaths, setInvokesStopCellEditing, setLargeModel, setLeadSelectionPath, setRootVisible, setRowHeight, setScrollsOnExpand, setSelectionInterval, setSelectionModel, setSelectionPath, setSelectionPaths, setSelectionRow, setSelectionRows, setShowsRootHandles, setToggleClickCount, setUI, setVisibleRowCount, startEditingAtPath, stopEditing, treeDidChange, updateUI

Methods inherited from class javax.swing.JComponent

addAncestorListener, addNotify, addVetoableChangeListener, computeVisibleRect, contains, createToolTip, disable, enable, firePropertyChange, firePropertyChange, firePropertyChange, fireVetoableChange, getActionForKeyStroke, getActionMap, getAlignmentX, getAlignmentY, getAncestorListeners, getAutoscrolls, getBaseline, getBaselineResizeBehavior, getBorder, getBounds, getClientProperty, getComponentGraphics, getComponentPopupMenu, getConditionForKeyStroke, getDebugGraphicsOptions, getDefaultLocale, getFontMetrics, getGraphics, getHeight, getInheritsPopupMenu, getInputMap, getInputMap, getInputVerifier, getInsets, getInsets, getListeners, getLocation, getMaximumSize, getMinimumSize, getNextFocusableComponent, getPopupLocation, getPreferredSize, getRegisteredKeyStrokes, getRootPane, getSize, getToolTipLocation, getToolTipText, getTopLevelAncestor, getTransferHandler, getVerifyInputWhenFocusTarget, getVetoableChangeListeners, getVisibleRect, getWidth, getX, getY, grabFocus, hide, isDoubleBuffered, isLightweightComponent, isManagingFocus, isOpaque, isOptimizedDrawingEnabled, isPaintingForPrint, isPaintingOrigin, isPaintingTile, isRequestFocusEnabled, isValidateRoot, paint, paintBorder, paintChildren, paintComponent, paintImmediately, paintImmediately, print, printAll, printBorder, printChildren, printComponent, processComponentKeyEvent, processKeyBinding, processKeyEvent, processMouseEvent, processMouseMotionEvent, putClientProperty, registerKeyboardAction, registerKeyboardAction, removeAncestorListener, removeNotify, removeVetoableChangeListener, repaint, repaint, requestDefaultFocus, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, resetKeyboardActions, reshape, revalidate, scrollRectToVisible, setActionMap, setAlignmentX, setAlignmentY, setAutoscrolls, setBackground, setBorder, setComponentPopupMenu, setDebugGraphicsOptions, setDefaultLocale, setDoubleBuffered, setEnabled, setFocusTraversalKeys, setFont, setForeground, setInheritsPopupMenu, setInputMap, setInputVerifier, setMaximumSize, setMinimumSize, setNextFocusableComponent, setOpaque, setPreferredSize, setRequestFocusEnabled, setToolTipText, setTransferHandler, setUI, setVerifyInputWhenFocusTarget, setVisible, unregisterKeyboardAction, update

Methods inherited from class java.awt.Container

add, add, add, add, add, addContainerListener, addImpl, addPropertyChangeListener, addPropertyChangeListener, applyComponentOrientation, areFocusTraversalKeysSet, countComponents, deliverEvent, doLayout, findComponentAt, findComponentAt, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getComponentZOrder, getContainerListeners, getFocusTraversalKeys, getFocusTraversalPolicy, getLayout, getMousePosition, insets, invalidate, isAncestorOf, isFocusCycleRoot, isFocusCycleRoot, isFocusTraversalPolicyProvider, isFocusTraversalPolicySet, layout, list, list, locate, minimumSize, paintComponents, preferredSize, printComponents, processContainerEvent, processEvent, remove, remove, removeAll, removeContainerListener, setComponentZOrder, setFocusCycleRoot, setFocusTraversalPolicy, setFocusTraversalPolicyProvider, setLayout, transferFocusDownCycle, validate, validateTree

Methods inherited from class java.awt.Component

action, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addMouseWheelListener, bounds, checkImage, checkImage, coalesceEvents, contains, createImage, createImage, createVolatileImage, createVolatileImage, disableEvents, dispatchEvent, enable, enableEvents, enableInputMethods, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, getBackground, getBounds, getColorModel, getComponentListeners, getComponentOrientation, getCursor, getDropTarget, getFocusCycleRootAncestor, getFocusListeners, getFocusTraversalKeysEnabled, getFont, getForeground, getGraphicsConfiguration, getHierarchyBoundsListeners, getHierarchyListeners, getIgnoreRepaint, getInputContext, getInputMethodListeners, getInputMethodRequests, getKeyListeners, getLocale, getLocation, getLocationOnScreen, getMouseListeners, getMouseMotionListeners, getMousePosition, getMouseWheelListeners, getName, getParent, getPeer, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getToolkit, getTreeLock, gotFocus, handleEvent, hasFocus, imageUpdate, inside, isBackgroundSet, isCursorSet, isDisplayable, isEnabled, isFocusable, isFocusOwner, isFocusTraversable, isFontSet, isForegroundSet, isLightweight, isMaximumSizeSet, isMinimumSizeSet, isPreferredSizeSet, isShowing, isValid, isVisible, keyDown, keyUp, list, list, list, location, lostFocus, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, postEvent, prepareImage, prepareImage, processComponentEvent, processFocusEvent, processHierarchyBoundsEvent, processHierarchyEvent, processInputMethodEvent, processMouseWheelEvent, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, resize, resize, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setFocusable, setFocusTraversalKeysEnabled, setIgnoreRepaint, setLocale, setLocation, setLocation, setName, setSize, setSize, show, show, size, toString, transferFocus, transferFocusBackward, transferFocusUpCycle

Methods inherited from class java.lang.Object

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

Constructor Detail

DataNodeJTree

public DataNodeJTree(DataNodeTreeModel model)

Constructs a new DataNodeJTree from a suitable model.

Parameters:

model - the model representing the tree contents

DataNodeJTree

public DataNodeJTree(DataNode root)

Constructs a new DataNodeJTree from a given root node.

Parameters:

root - the root data node

Method Detail

setModel

public void setModel(TreeModel model)

Sets the model for this JTree to a given DataNodeTreeModel.

Overrides:

setModel in class JTree

Parameters:

model - a DataNodeTreeModel object

Throws:

ClassCastException - if model is not a DataNodeTreeModel

recursiveExpand

public Thread recursiveExpand(DataNode dataNode)

Recursively expands a given data node. As with normal expansion, this happens asynchronously. A new thread is created and started in which the model expansion (though not the JTree notification) is done synchronously. This thread is available as the method's return value. The JTree is expanded to show the new nodes.

Parameters:

dataNode - the node to expand

Returns:

the Thread in which the expansion is done

expandPathLater

public void expandPathLater(TreePath path)

Submits a path expansion to the event queue for later invocation. In several cases it seems that invoking JTree.expandPath(javax.swing.tree.TreePath) on the JTree directly, even from the event dispatch thread, has the effect of messing up the tree's visual representation (leaving gaps between nodes). I'm guessing this is because JTree doesn't expect expandPath to be performed during tree gui processing which is already taking place. Doing it like this seems to alleviate the problem (I hope).

Parameters:

path - the path to expand

getDraggedNode

public DataNode getDraggedNode()

Returns the last place the mouse button was pressed on this component. This is required by the DataNodeTransferHandler, since otherwise there seems to be no way of knowing which node the drag gesture referred to. The way this is got hold of is not entirely reputable.

Returns:

the node corresponding to the last node dragged

getDropNode

public DataNode getDropNode()

Returns the current position of the mouse if it's being dragged on this component. This is required by the DataNodeTransferHandler.

Returns:

the node corresponding to the current drop position

getConnectionActions

public Action[] getConnectionActions(DataNodeFactory factory)

Returns a set of actions which can make connections to known virtual filestores, as supplied by ConnectorManager. Each action will result in the user being prompted for authorization information, and if this is satisfactory, a new node representing the root of the resulting virtual filestore being added to this tree.

Parameters:

factory - data node factory which will be used to create new data nodes for any connections which are opened