FixedHeightLayoutCache JDK 1.6)

Methods

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public Rectangle getBounds (TreePath path, Rectangle placeIn) [Specified in AbstractLayoutCache]

Returns a rectangle giving the bounds needed to draw path.

public boolean getExpandedState (TreePath path) [Specified in AbstractLayoutCache]

Returns true if the path is expanded, and visible.

public TreeModel getModel () [Inherited From AbstractLayoutCache]

Returns the TreeModel that is providing the data.

Returns the TreeModel that is providing the data.
Returns: the TreeModel that is providing the data

public NodeDimensions getNodeDimensions () [Inherited From AbstractLayoutCache]

Returns the object that renders nodes in the tree, and which is responsible for calculating the dimensions of individual nodes.

Returns the object that renders nodes in the tree, and which is
responsible for calculating the dimensions of individual nodes.
Returns: the NodeDimensions object

protected Rectangle getNodeDimensions (Object value, int row, int depth, boolean expanded, Rectangle placeIn) [Inherited From AbstractLayoutCache]

Returns, by reference in placeIn, the size needed to represent value.

Returns, by reference in placeIn,
the size needed to represent value.
If inPlace is null, a newly created
Rectangle should be returned, otherwise the value
should be placed in inPlace and returned. This will
return null if there is no renderer.
Returns: a Rectangle containing the node dimensions, or null if node has no dimension
Parameters:
- value - the value to be represented
- row - row being queried
- depth - the depth of the row
- expanded - true if row is expanded, false otherwise
- placeIn - a Rectangle containing the size needed to represent value

public TreePath getPathClosestTo (int x, int y) [Specified in AbstractLayoutCache]

Returns the path to the node that is closest to x,y.

public TreePath getPathForRow (int row) [Specified in AbstractLayoutCache]

Returns the path for passed in row.

public int getPreferredHeight () [Inherited From AbstractLayoutCache]

Returns the preferred height.

public int getPreferredWidth (Rectangle bounds) [Inherited From AbstractLayoutCache]

Returns the preferred width for the passed in region.

Returns the preferred width for the passed in region.
The region is defined by the path closest to
(bounds.x, bounds.y) and
ends at bounds.height + bounds.y.
If bounds is null,
the preferred width for all the nodes
will be returned (and this may be a VERY expensive
computation).
Returns: the preferred width for the passed in region
Parameters:
- bounds - the region being queried

public int getRowCount () [Specified in AbstractLayoutCache]

Returns the number of visible rows.

public int getRowForPath (TreePath path) [Specified in AbstractLayoutCache]

Returns the row that the last item identified in path is visible at.

public int getRowHeight () [Inherited From AbstractLayoutCache]

Returns the height of each row.

public int getRowsForPaths (TreePath paths) [Inherited From AbstractLayoutCache]

Returns the rows that the TreePath instances in path are being displayed at.

Returns the rows that the TreePath instances in
path are being displayed at.
This method should return an array of the same length as that passed
in, and if one of the TreePaths
in path is not valid its entry in the array should
be set to -1.
Returns: an array of the same length that is passed in containing the rows that each corresponding where each TreePath is displayed; if paths is null, null is returned
Parameters:
- paths - the array of TreePaths being queried

public TreeSelectionModel getSelectionModel () [Inherited From AbstractLayoutCache]

Returns the model used to maintain the selection.

Returns the model used to maintain the selection.
Returns: the treeSelectionModel

public int getVisibleChildCount (TreePath path) [Specified in AbstractLayoutCache]

Returns the number of visible children for row.

public Enumeration<TreePath> getVisiblePathsFrom (TreePath path) [Specified in AbstractLayoutCache]

Returns an Enumerator that increments over the visible paths starting at the passed in location.

public void invalidatePathBounds (TreePath path) [Specified in AbstractLayoutCache]

Does nothing, FixedHeightLayoutCache doesn't cache width, and that is all that could change.

public void invalidateSizes () [Specified in AbstractLayoutCache]

Informs the TreeState that it needs to recalculate all the sizes it is referencing.

public boolean isExpanded (TreePath path) [Specified in AbstractLayoutCache]

Returns true if the value identified by row is currently expanded.

protected boolean isFixedRowHeight () [Inherited From AbstractLayoutCache]

Returns true if the height of each row is a fixed size.

public boolean isRootVisible () [Inherited From AbstractLayoutCache]

Returns true if the root node of the tree is displayed.

public void setExpandedState (TreePath path, boolean isExpanded) [Specified in AbstractLayoutCache]

Marks the path path expanded state to isExpanded.

public void setModel (TreeModel newModel) [Overrides AbstractLayoutCache]

Sets the TreeModel that will provide the data.

public void setNodeDimensions (NodeDimensions nd) [Inherited From AbstractLayoutCache]

Sets the renderer that is responsible for drawing nodes in the tree and which is threfore responsible for calculating the dimensions of individual nodes.

Sets the renderer that is responsible for drawing nodes in the tree
and which is threfore responsible for calculating the dimensions of
individual nodes.
Parameters:
- nd - a NodeDimensions object

public void setRootVisible (boolean rootVisible) [Overrides AbstractLayoutCache]

Determines whether or not the root node from the TreeModel is visible.

public void setRowHeight (int rowHeight) [Overrides AbstractLayoutCache]

Sets the height of each cell.

public void setSelectionModel (TreeSelectionModel newLSM) [Inherited From AbstractLayoutCache]

Sets the TreeSelectionModel used to manage the selection to new LSM.

Sets the TreeSelectionModel used to manage the
selection to new LSM.
Parameters:
- newLSM - the new TreeSelectionModel

public void treeNodesChanged (TreeModelEvent e) [Specified in AbstractLayoutCache]

Invoked after a node (or a set of siblings) has changed in some way.

public void treeNodesInserted (TreeModelEvent e) [Specified in AbstractLayoutCache]

Invoked after nodes have been inserted into the tree.

public void treeNodesRemoved (TreeModelEvent e) [Specified in AbstractLayoutCache]

Invoked after nodes have been removed from the tree.

public void treeStructureChanged (TreeModelEvent e) [Specified in AbstractLayoutCache]

Invoked after the tree has drastically changed structure from a given node down.