Java(TM) 2 Platform, Standard Edition, v1.2.2 API Specification: Interface TreeSelectionModel - JDK 5 Documentation v1.2.2, Java 2 SDK 英文文档

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Java^TM 2 Platform
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javax.swing.tree
Interface TreeSelectionModel

All Known Implementing Classes:: DefaultTreeSelectionModel

public interface TreeSelectionModel

This interface represents the current state of the selection for the tree component. It will keep track of the selected rows, but in order to select by row you will need to go directly to the tree.

resetRowSelection is called from any of the methods that update the selected paths.

Field Summary

static int CONTIGUOUS_TREE_SELECTION
          Selection can only be contiguous.

static int DISCONTIGUOUS_TREE_SELECTION
          Selection can contain any number of items that are not necessarily contiguous.

static int SINGLE_TREE_SELECTION
          Selection can only contain one path at a time.

Method Summary

void addPropertyChangeListener(PropertyChangeListener listener)
          Add a PropertyChangeListener to the listener list.

void addSelectionPath(TreePath path)
          Adds path to the current selection.

void addSelectionPaths(TreePath[] paths)
          Adds paths to the current selection.

void addTreeSelectionListener(TreeSelectionListener x)
          Adds x to the list of listeners that are notified each time the selection changes.

void clearSelection()
          Empties the current selection.

TreePath getLeadSelectionPath()
          Returns the last path that was added.

int getLeadSelectionRow()
          Returns the lead selection index.

int getMaxSelectionRow()
          Gets the last selected row.

int getMinSelectionRow()
          Gets the first selected row.

RowMapper getRowMapper()
          Returns the RowMapper instance that is able to map a path to a row.

int getSelectionCount()
          Returns the number of paths that are selected.

int getSelectionMode()
          Returns the selection mode.

TreePath getSelectionPath()
          Returns the first path in the selection.

TreePath[] getSelectionPaths()
          Returns the paths in the selection.

int[] getSelectionRows()
          Returns all of the currently selected rows.

boolean isPathSelected(TreePath path)
          Returns true if the path, path, is in the current selection.

boolean isRowSelected(int row)
          Returns true if the row identitifed by row is selected.

boolean isSelectionEmpty()
          Returns true if the selection is currently empty.

void removePropertyChangeListener(PropertyChangeListener listener)
          Remove a PropertyChangeListener from the listener list.

void removeSelectionPath(TreePath path)
          Removes path from the selection.

void removeSelectionPaths(TreePath[] paths)
          Removes paths from the selection.

void removeTreeSelectionListener(TreeSelectionListener x)
          Removes x from the list of listeners that are notified each time the selection changes.

void resetRowSelection()
          Updates what rows are selected.

void setRowMapper(RowMapper newMapper)
          Sets the RowMapper instance.

void setSelectionMode(int mode)
          Sets the selection model, which must be one of SINGLE_TREE_SELECTION, CONTIGUOUS_TREE_SELECTION or DISCONTIGUOUS_TREE_SELECTION.

void setSelectionPath(TreePath path)
          Sets the selection to path.

void setSelectionPaths(TreePath[] paths)
          Sets the selection to the the paths.

Field Detail

SINGLE_TREE_SELECTION

public static final int SINGLE_TREE_SELECTION

Selection can only contain one path at a time.

CONTIGUOUS_TREE_SELECTION

public static final int CONTIGUOUS_TREE_SELECTION

Selection can only be contiguous. This will only be enforced if a RowMapper instance is provided.

DISCONTIGUOUS_TREE_SELECTION

public static final int DISCONTIGUOUS_TREE_SELECTION

Selection can contain any number of items that are not necessarily contiguous.

Method Detail

setSelectionMode

public void setSelectionMode(int mode)

Sets the selection model, which must be one of SINGLE_TREE_SELECTION, CONTIGUOUS_TREE_SELECTION or DISCONTIGUOUS_TREE_SELECTION.

getSelectionMode

public int getSelectionMode()

Returns the selection mode.

setSelectionPath

public void setSelectionPath(TreePath path)

Sets the selection to path. If this represents a change, then the TreeSelectionListeners are notified.

Parameters:: path - new path to select

setSelectionPaths

public void setSelectionPaths(TreePath[] paths)

Sets the selection to the the paths. If this represents a change the TreeSelectionListeners are notified.

Parameters:: paths - new selection.

addSelectionPath

public void addSelectionPath(TreePath path)

Adds path to the current selection. If path is not currently in the selection the TreeSelectionListeners are notified.

Parameters:: path - the new path to add to the current selection.

addSelectionPaths

public void addSelectionPaths(TreePath[] paths)

Adds paths to the current selection. If any of the paths in paths are not currently in the selection the TreeSelectionListeners are notified.

Parameters:: path - the new path to add to the current selection.

removeSelectionPath

public void removeSelectionPath(TreePath path)

Removes path from the selection. If path is in the selection The TreeSelectionListeners are notified.

Parameters:: path - the path to remove from the selection.

removeSelectionPaths

public void removeSelectionPaths(TreePath[] paths)

Removes paths from the selection. If any of the paths in paths are in the selection the TreeSelectionListeners are notified.

Parameters:: path - the path to remove from the selection.

getSelectionPath

public TreePath getSelectionPath()

Returns the first path in the selection.

getSelectionPaths

public TreePath[] getSelectionPaths()

Returns the paths in the selection.

getSelectionCount

public int getSelectionCount()

Returns the number of paths that are selected.

isPathSelected

public boolean isPathSelected(TreePath path)

Returns true if the path, path, is in the current selection.

isSelectionEmpty

public boolean isSelectionEmpty()

Returns true if the selection is currently empty.

clearSelection

public void clearSelection()

Empties the current selection. If this represents a change in the current selection, the selection listeners are notified.

setRowMapper

public void setRowMapper(RowMapper newMapper)

Sets the RowMapper instance. This instance is used to determine what row corresponds to what path.

getRowMapper

public RowMapper getRowMapper()

Returns the RowMapper instance that is able to map a path to a row.

getSelectionRows

public int[] getSelectionRows()

Returns all of the currently selected rows.

getMinSelectionRow

public int getMinSelectionRow()

Gets the first selected row.

getMaxSelectionRow

public int getMaxSelectionRow()

Gets the last selected row.

isRowSelected

public boolean isRowSelected(int row)

Returns true if the row identitifed by row is selected.

resetRowSelection

public void resetRowSelection()

Updates what rows are selected. This can be externally called in case the location of the paths change, but not the actual paths. You do not normally need to call this.

getLeadSelectionRow

public int getLeadSelectionRow()

Returns the lead selection index. That is the last index that was added.

getLeadSelectionPath

public TreePath getLeadSelectionPath()

Returns the last path that was added.

addPropertyChangeListener

public void addPropertyChangeListener(PropertyChangeListener listener)

Add a PropertyChangeListener to the listener list. The listener is registered for all properties.

A PropertyChangeEvent will get fired in response to an explicit setFont, setBackground, or SetForeground on the current component. Note that if the current component is inheriting its foreground, background, or font from its container, then no event will be fired in response to a change in the inherited property.

Parameters:: listener - The PropertyChangeListener to be added

removePropertyChangeListener

public void removePropertyChangeListener(PropertyChangeListener listener)

Remove a PropertyChangeListener from the listener list. This removes a PropertyChangeListener that was registered for all properties.

Parameters:: listener - The PropertyChangeListener to be removed

addTreeSelectionListener

public void addTreeSelectionListener(TreeSelectionListener x)

Adds x to the list of listeners that are notified each time the selection changes.

Parameters:: x - the new listener to be added.

removeTreeSelectionListener

public void removeTreeSelectionListener(TreeSelectionListener x)

Removes x from the list of listeners that are notified each time the selection changes.

Parameters:: x - the listener to remove.