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JavaTM 2 Platform Standard Ed. 5.0 |
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java.lang.Objectjavax.swing.tree.AbstractLayoutCache
javax.swing.tree.FixedHeightLayoutCache
public class FixedHeightLayoutCache
NOTE: This will become more open in a future release.
Warning:
Serialized objects of this class will not be compatible with
future Swing releases. The current serialization support is
appropriate for short term storage or RMI between applications running
the same version of Swing. As of 1.4, support for long term storage
of all JavaBeansTM
has been added to the java.beans package.
Please see XMLEncoder.
| Nested Class Summary |
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| Nested classes/interfaces inherited from class javax.swing.tree.AbstractLayoutCache |
|---|
AbstractLayoutCache.NodeDimensions |
| Field Summary |
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| Fields inherited from class javax.swing.tree.AbstractLayoutCache |
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nodeDimensions, rootVisible, rowHeight, treeModel, treeSelectionModel |
| Constructor Summary | |
|---|---|
FixedHeightLayoutCache()
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| Method Summary | |
|---|---|
Rectangle |
getBounds(TreePath path,
Rectangle placeIn)
Returns a rectangle giving the bounds needed to draw path. |
boolean |
getExpandedState(TreePath path)
Returns true if the path is expanded, and visible. |
TreePath |
getPathClosestTo(int x,
int y)
Returns the path to the node that is closest to x,y. |
TreePath |
getPathForRow(int row)
Returns the path for passed in row. |
int |
getRowCount()
Returns the number of visible rows. |
int |
getRowForPath(TreePath path)
Returns the row that the last item identified in path is visible at. |
int |
getVisibleChildCount(TreePath path)
Returns the number of visible children for row. |
Enumeration<TreePath> |
getVisiblePathsFrom(TreePath path)
Returns an Enumerator that increments over the visible paths starting at the passed in location. |
void |
invalidatePathBounds(TreePath path)
Does nothing, FixedHeightLayoutCache doesn't cache width, and that is all that could change. |
void |
invalidateSizes()
Informs the TreeState that it needs to recalculate all the sizes it is referencing. |
boolean |
isExpanded(TreePath path)
Returns true if the value identified by row is currently expanded. |
void |
setExpandedState(TreePath path,
boolean isExpanded)
Marks the path path expanded state to
isExpanded. |
void |
setModel(TreeModel newModel)
Sets the TreeModel that will provide the data. |
void |
setRootVisible(boolean rootVisible)
Determines whether or not the root node from the TreeModel is visible. |
void |
setRowHeight(int rowHeight)
Sets the height of each cell. |
void |
treeNodesChanged(TreeModelEvent e)
Invoked after a node (or a set of siblings) has changed in some way. |
void |
treeNodesInserted(TreeModelEvent e)
Invoked after nodes have been inserted into the tree. |
void |
treeNodesRemoved(TreeModelEvent e)
Invoked after nodes have been removed from the tree. |
void |
treeStructureChanged(TreeModelEvent e)
Invoked after the tree has drastically changed structure from a given node down. |
| Methods inherited from class javax.swing.tree.AbstractLayoutCache |
|---|
getModel, getNodeDimensions, getNodeDimensions, getPreferredHeight, getPreferredWidth, getRowHeight, getRowsForPaths, getSelectionModel, isFixedRowHeight, isRootVisible, setNodeDimensions, setSelectionModel |
| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
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public FixedHeightLayoutCache()
| Method Detail |
|---|
public void setModel(TreeModel newModel)
setModel in class AbstractLayoutCachenewModel - the TreeModel that is to provide the datapublic void setRootVisible(boolean rootVisible)
setRootVisible in class AbstractLayoutCacherootVisible - true if the root node of the tree is to be displayedAbstractLayoutCache.rootVisiblepublic void setRowHeight(int rowHeight)
setRowHeight in class AbstractLayoutCacherowHeight - the height of each cell, in pixelspublic int getRowCount()
getRowCount in class AbstractLayoutCachepublic void invalidatePathBounds(TreePath path)
invalidatePathBounds in class AbstractLayoutCachepath - the path being updatedpublic void invalidateSizes()
invalidateSizes in class AbstractLayoutCachepublic boolean isExpanded(TreePath path)
isExpanded in class AbstractLayoutCache
public Rectangle getBounds(TreePath path,
Rectangle placeIn)
getBounds in class AbstractLayoutCachepath - a TreePath specifying a nodeplaceIn - a Rectangle object giving the available space
public TreePath getPathForRow(int row)
getPathForRow in class AbstractLayoutCacherow - the row being queried
TreePath for the given rowpublic int getRowForPath(TreePath path)
getRowForPath in class AbstractLayoutCachepath - the TreePath being queried
public TreePath getPathClosestTo(int x,
int y)
getPathClosestTo in class AbstractLayoutCachex - the horizontal component of the desired locationy - the vertical component of the desired location
TreePath closest to the specified pointpublic int getVisibleChildCount(TreePath path)
getVisibleChildCount in class AbstractLayoutCachepath - the path being queried
public Enumeration<TreePath> getVisiblePathsFrom(TreePath path)
getVisiblePathsFrom in class AbstractLayoutCachepath - the starting location for the enumeration
Enumerator starting at the desired location
public void setExpandedState(TreePath path,
boolean isExpanded)
path expanded state to
isExpanded.
setExpandedState in class AbstractLayoutCachepath - the path being expanded or collapsedisExpanded - true if the path should be expanded, false otherwisepublic boolean getExpandedState(TreePath path)
getExpandedState in class AbstractLayoutCachepath - the path being queried
public void treeNodesChanged(TreeModelEvent e)
Invoked after a node (or a set of siblings) has changed in some way. The node(s) have not changed locations in the tree or altered their children arrays, but other attributes have changed and may affect presentation. Example: the name of a file has changed, but it is in the same location in the file system.
e.path() returns the path the parent of the changed node(s).
e.childIndices() returns the index(es) of the changed node(s).
treeNodesChanged in class AbstractLayoutCachee - the TreeModelEventpublic void treeNodesInserted(TreeModelEvent e)
Invoked after nodes have been inserted into the tree.
e.path() returns the parent of the new nodes
e.childIndices() returns the indices of the new nodes in ascending order.
treeNodesInserted in class AbstractLayoutCachee - the TreeModelEventpublic void treeNodesRemoved(TreeModelEvent e)
Invoked after nodes have been removed from the tree. Note that if a subtree is removed from the tree, this method may only be invoked once for the root of the removed subtree, not once for each individual set of siblings removed.
e.path() returns the former parent of the deleted nodes.
e.childIndices() returns the indices the nodes had before they were deleted in ascending order.
treeNodesRemoved in class AbstractLayoutCachee - the TreeModelEventpublic void treeStructureChanged(TreeModelEvent e)
Invoked after the tree has drastically changed structure from a given node down. If the path returned by e.getPath() is of length one and the first element does not identify the current root node the first element should become the new root of the tree.
e.path() holds the path to the node.
e.childIndices() returns null.
treeStructureChanged in class AbstractLayoutCachee - the TreeModelEvent
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JavaTM 2 Platform Standard Ed. 5.0 |
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Copyright 2004 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.