org.openide.explorer.view

Class ListView

java.lang.Object

java.awt.Component

java.awt.Container

javax.swing.JComponent

javax.swing.JScrollPane

org.openide.explorer.view.ListView

All Implemented Interfaces:

ImageObserver, MenuContainer, Externalizable, Serializable, Accessible, ScrollPaneConstants

Direct Known Subclasses:

IconView, ListTableView

public class ListView
extends JScrollPane
implements Externalizable

Explorer view to display items in a list.

This class is a view to use it properly you need to add it into a component which implements ExplorerManager.Provider. Good examples of that can be found in ExplorerUtils. Then just use ExplorerManager.Provider.getExplorerManager() call to get the ExplorerManager and control its state.

There can be multiple views under one container implementing ExplorerManager.Provider. Select from range of predefined ones or write your own:

• BeanTreeView - shows a tree of nodes
• ContextTreeView - shows a tree of nodes without leaf nodes
• ListView - shows a list of nodes
• IconView - shows a rows of nodes with bigger icons
• ChoiceView - creates a combo box based on the explored nodes
• TreeTableView - shows tree of nodes together with a set of their Node.Property
• MenuView - can create a JMenu structure based on structure of Nodes

All of these views use ExplorerManager.find(java.awt.Component) to walk up the AWT hierarchy and locate the ExplorerManager to use as a controller. They attach as listeners to it and also call its setter methods to update the shared state based on the user action. Not all views make sense together, but for example ContextTreeView and ListView were designed to complement themselves and behaves like windows explorer. The PropertySheetView for example should be able to work with any other view.

See Also:

Serialized Form

Nested Class Summary

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

JScrollPane.AccessibleJScrollPane, JScrollPane.ScrollBar

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

Modifier and Type	Field and Description
protected JList	list The actual JList list
protected NodeListModel	model model to use

Fields inherited from class javax.swing.JScrollPane

columnHeader, horizontalScrollBar, horizontalScrollBarPolicy, lowerLeft, lowerRight, rowHeader, upperLeft, upperRight, verticalScrollBar, verticalScrollBarPolicy, viewport

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 javax.swing.ScrollPaneConstants

COLUMN_HEADER, HORIZONTAL_SCROLLBAR, HORIZONTAL_SCROLLBAR_ALWAYS, HORIZONTAL_SCROLLBAR_AS_NEEDED, HORIZONTAL_SCROLLBAR_NEVER, HORIZONTAL_SCROLLBAR_POLICY, LOWER_LEADING_CORNER, LOWER_LEFT_CORNER, LOWER_RIGHT_CORNER, LOWER_TRAILING_CORNER, ROW_HEADER, UPPER_LEADING_CORNER, UPPER_LEFT_CORNER, UPPER_RIGHT_CORNER, UPPER_TRAILING_CORNER, VERTICAL_SCROLLBAR, VERTICAL_SCROLLBAR_ALWAYS, VERTICAL_SCROLLBAR_AS_NEEDED, VERTICAL_SCROLLBAR_NEVER, VERTICAL_SCROLLBAR_POLICY, VIEWPORT

Fields inherited from interface java.awt.image.ImageObserver

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

Constructor Summary

Constructors

Constructor and Description
ListView() Default constructor.

Method Summary

Modifier and Type	Method and Description
void	addNotify()
protected JList	createList() Creates the list that will display the data.
protected NodeListModel	createModel() Allows subclasses to change the default model used for the list.
void	doLayout()
int	getAllowedDragActions() Actions constants comes from DnDConstants.
int	getAllowedDropActions() Actions constants comes from DnDConstants.
ActionListener	getDefaultProcessor() Get the current processor for default actions.
Dimension	getPreferredSize()
int	getSelectionMode() Get the selection mode.
boolean	isDragSource()
boolean	isDropTarget()
boolean	isPopupAllowed() Test whether display of a popup menu is enabled.
boolean	isShowParentNode() Is parent node (e.g.
boolean	isTraversalAllowed() Test whether hierarchy traversal shortcuts are permitted.
void	paint(Graphics g)
void	readExternal(ObjectInput in)
void	removeNotify() Removes listeners.
void	requestFocus()
boolean	requestFocusInWindow()
protected boolean	selectionAccept(Node[] nodes) Called when explorer manager is about to change the current selection.
protected void	selectionChanged(Node[] nodes, ExplorerManager em) Called when the list changed selection and the explorer manager should be updated.
void	setAllowedDragActions(int actions) Sets allowed actions for dragging
void	setAllowedDropActions(int actions) Sets allowed actions for dropping.
void	setDefaultProcessor(ActionListener value) Set a new processor for default actions.
void	setDragSource(boolean state) Enables/disables dragging support.
void	setDropTarget(boolean state) Enables/disables dropping support.
void	setPopupAllowed(boolean value) Enable/disable displaying popup menus on list view items.
void	setSelectionMode(int selectionMode) Set whether single-item or multiple-item selections are allowed.
void	setShowParentNode(boolean show) Shall the first node in the list be ".." representing currently explored context? By default it is not, but if you want to simplify the navigation in the Node hierarchy, you can turn this property on.
void	setTraversalAllowed(boolean value) Enable/disable hierarchy traversal using CTRL+click (down) and Backspace (up), default is enabled.
protected void	showSelection(int[] indexes) Shows selection.
protected void	validateTree()
void	writeExternal(ObjectOutput out)

Methods inherited from class javax.swing.JScrollPane

createHorizontalScrollBar, createVerticalScrollBar, createViewport, getAccessibleContext, getColumnHeader, getCorner, getHorizontalScrollBar, getHorizontalScrollBarPolicy, getRowHeader, getUI, getUIClassID, getVerticalScrollBar, getVerticalScrollBarPolicy, getViewport, getViewportBorder, getViewportBorderBounds, isValidateRoot, isWheelScrollingEnabled, paramString, setColumnHeader, setColumnHeaderView, setComponentOrientation, setCorner, setHorizontalScrollBar, setHorizontalScrollBarPolicy, setLayout, setRowHeader, setRowHeaderView, setUI, setVerticalScrollBar, setVerticalScrollBarPolicy, setViewport, setViewportBorder, setViewportView, setWheelScrollingEnabled, updateUI

Methods inherited from class javax.swing.JComponent

addAncestorListener, 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, getRegisteredKeyStrokes, getRootPane, getSize, getToolTipLocation, getToolTipText, getToolTipText, getTopLevelAncestor, getTransferHandler, getVerifyInputWhenFocusTarget, getVetoableChangeListeners, getVisibleRect, getWidth, getX, getY, grabFocus, hide, isDoubleBuffered, isLightweightComponent, isManagingFocus, isOpaque, isOptimizedDrawingEnabled, isPaintingForPrint, isPaintingOrigin, isPaintingTile, isRequestFocusEnabled, paintBorder, paintChildren, paintComponent, paintImmediately, paintImmediately, print, printAll, printBorder, printChildren, printComponent, processComponentKeyEvent, processKeyBinding, processKeyEvent, processMouseEvent, processMouseMotionEvent, putClientProperty, registerKeyboardAction, registerKeyboardAction, removeAncestorListener, removeVetoableChangeListener, repaint, repaint, requestDefaultFocus, requestFocus, 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, 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, transferFocusDownCycle, validate

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, 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

Field Detail

list

protected transient JList list

The actual JList list

model

protected transient NodeListModel model

model to use

Constructor Detail

ListView

public ListView()

Default constructor.

Method Detail

writeExternal

public void writeExternal(ObjectOutput out)
                   throws IOException

Specified by:

writeExternal in interface Externalizable

Throws:

IOException

readExternal

public void readExternal(ObjectInput in)
                  throws IOException,
                         ClassNotFoundException

Specified by:

readExternal in interface Externalizable

Throws:

IOException

ClassNotFoundException

isPopupAllowed

public boolean isPopupAllowed()

Test whether display of a popup menu is enabled.

Returns:

true if so

setPopupAllowed

public void setPopupAllowed(boolean value)

Enable/disable displaying popup menus on list view items. Default is enabled.

Parameters:

value - true to enable

isTraversalAllowed

public boolean isTraversalAllowed()

Test whether hierarchy traversal shortcuts are permitted.

Returns:

true if so

setTraversalAllowed

public void setTraversalAllowed(boolean value)

Enable/disable hierarchy traversal using CTRL+click (down) and Backspace (up), default is enabled.

Parameters:

value - true to enable

isShowParentNode

public boolean isShowParentNode()

Is parent node (e.g. explored context shown)?

Returns:

true or false. Default is false.

Since:

6.28

setShowParentNode

public void setShowParentNode(boolean show)

Shall the first node in the list be ".." representing currently explored context? By default it is not, but if you want to simplify the navigation in the Node hierarchy, you can turn this property on.

Parameters:

show - true to show the "..", false to not to do so

Since:

6.28

getDefaultProcessor

public ActionListener getDefaultProcessor()

Get the current processor for default actions. If not null, double-clicks or pressing Enter on items in the view will not perform the default action on the selected node; rather the processor will be notified about the event.

Returns:

the current default-action processor, or null

setDefaultProcessor

public void setDefaultProcessor(ActionListener value)

Set a new processor for default actions.

Parameters:

value - the new default-action processor, or null to restore use of the selected node's declared default action

See Also:

ListView.getDefaultProcessor()

setSelectionMode

public void setSelectionMode(int selectionMode)

Set whether single-item or multiple-item selections are allowed.

Parameters:

selectionMode - one of ListSelectionModel.SINGLE_SELECTION, ListSelectionModel.SINGLE_INTERVAL_SELECTION, or ListSelectionModel.MULTIPLE_INTERVAL_SELECTION

See Also:

ListSelectionModel.setSelectionMode(int)

getSelectionMode

public int getSelectionMode()

Get the selection mode.

Returns:

the mode

See Also:

ListView.setSelectionMode(int)

isDragSource

public boolean isDragSource()

Returns:

true if dragging from the view is enabled, false otherwise.
Drag support is disabled by default.

setDragSource

public void setDragSource(boolean state)

Enables/disables dragging support.

Parameters:

state - true enables dragging support, false disables it.

isDropTarget

public boolean isDropTarget()

Returns:

true if dropping to the view is enabled, false otherwise
Drop support is disabled by default.

setDropTarget

public void setDropTarget(boolean state)

Enables/disables dropping support.

Parameters:

state - true means drops into view are allowed, false forbids any drops into this view.

getAllowedDragActions

public int getAllowedDragActions()

Actions constants comes from DnDConstants. All actions (copy, move, link) are allowed by default.

Returns:

int representing set of actions which are allowed when dragging from asociated component.

setAllowedDragActions

public void setAllowedDragActions(int actions)

Sets allowed actions for dragging

Parameters:

actions - new drag actions, using DnDConstants

getAllowedDropActions

public int getAllowedDropActions()

Actions constants comes from DnDConstants. All actions are allowed by default.

Returns:

int representing set of actions which are allowed when dropping into the asociated component.

setAllowedDropActions

public void setAllowedDropActions(int actions)

Sets allowed actions for dropping.

Parameters:

actions - new allowed drop actions, using DnDConstants

createList

protected JList createList()

Creates the list that will display the data.

createModel

protected NodeListModel createModel()

Allows subclasses to change the default model used for the list.

selectionChanged

protected void selectionChanged(Node[] nodes,
                                ExplorerManager em)
                         throws PropertyVetoException

Called when the list changed selection and the explorer manager should be updated.

Parameters:

nodes - list of nodes that should be selected

em - explorer manager

Throws:

PropertyVetoException - if the manager does not allow the selection

selectionAccept

protected boolean selectionAccept(Node[] nodes)

Called when explorer manager is about to change the current selection. The view can forbid the change if it is not able to display such selection.

Parameters:

nodes - the nodes to select

Returns:

false if the view is not able to change the selection

showSelection

protected void showSelection(int[] indexes)

Shows selection.

Parameters:

indexes - indexes of objects to select

paint

public void paint(Graphics g)

Overrides:

paint in class JComponent

validateTree

protected void validateTree()

Overrides:

validateTree in class Container

getPreferredSize

public Dimension getPreferredSize()

Overrides:

getPreferredSize in class JComponent

doLayout

public void doLayout()

Overrides:

doLayout in class Container

addNotify

public void addNotify()

Overrides:

addNotify in class JComponent

removeNotify

public void removeNotify()

Removes listeners.

Overrides:

removeNotify in class JComponent

requestFocus

public void requestFocus()

Overrides:

requestFocus in class JComponent

requestFocusInWindow

public boolean requestFocusInWindow()

Overrides:

requestFocusInWindow in class JComponent