All Packages  Class Hierarchy  This Package  Previous  Next  Index  

Class java.awt.swing.basic.VisibleTreeNode

java.lang.Object
    |
    +----java.awt.swing.tree.DefaultMutableTreeNode
            |
            +----java.awt.swing.basic.VisibleTreeNode

public class VisibleTreeNode

extends DefaultMutableTreeNode

EMPTY_SIZE

expanded

Is this node currently expanded?

hasBeenExpanded

Has this node been expanded at least once?

isValid

Is this node in a tree?

preferredSize

Preferred size needed to draw the user object.

treeUI

AbstractTreeUI this was created for.

yOrigin

Y location that the user object will be drawn at.

VisibleTreeNode(AbstractTreeUI, Object, int)

children()

Returns the children of the receiver.

collapse()

Collapsed the receiver.

collapse(boolean)

Collapses this node in the tree.

didAdjustTree()

Messaged from expand and collapse.

expand()

Expands the receiver.

expand(boolean)

Expands this node in the tree.

getLastVisibleNode()

Returns the last visible node that is a child of this instance.

getLoadedChildren(boolean)

If createIfNeeded is true the children will be loaded from the model if they haven't already been loaded.

getModelChildCount()

Returns the number of children this will have.

getNodeBounds()

Returns the location and size of this node.

getPreferredSize()

Returns the preferred size needed to draw the value this node represents.

getRow()

Returns the row of the receiver.

getTreePath()

Returns a TreePath instance for this node.

getValue()

Returns the value the receiver is representing.

getVisibleLevel()

The highest visible nodes have a depth of 0.

getVisibleNodes()

Returns the visibleNodes instance variable of the tree the receiver is contained in.

getYOrigin()

Returns the y origin the user object will be drawn at.

hasBeenExpanded()

Returns true if this node has been expanded at least once.

hasValidSize()

Returns true if this node has a valid size.

isExpanded()

Returns true if the receiver has been expanded.

isLeaf()

Returns true if the receiver is a leaf.

isSelected()

Returns true if the receiver is selected.

isVisible()

Returns true if the receiver is currently visible.

modelChildCountChanged()

Messaged when the child count has changed and this node hasn't yet been expanded.

setParent(MutableTreeNode)

Passes this message on to super and if the newParent is null, meaning we're no longer in the tree.

setYOrigin(int)

Sets y origin the user object will be drawn at to newYOrigin.

shiftYOriginBy(int)

Shifts the y origin by offset.

toggleExpanded()

Toggles the receiver between expanded and collapsed.

updatePreferredSize()

updatePreferredSize(int)

Updates the preferred size by asking the current renderer for the Dimension needed to draw the user object this instance represents.

updateTreeYLocationsFrom(int)

Messages the tree with updateYLocationsFrom(row).

visibleChildCount()

Returns the number of visible children.

protected AbstractTreeUI treeUI

AbstractTreeUI this was created for.

protected Dimension preferredSize

Preferred size needed to draw the user object.

protected int yOrigin

Y location that the user object will be drawn at.

protected boolean expanded

Is this node currently expanded?

protected boolean hasBeenExpanded

Has this node been expanded at least once?

protected boolean isValid

Is this node in a tree?

public static final Dimension EMPTY_SIZE

public VisibleTreeNode(AbstractTreeUI treeUI,
                       Object value,
                       int index)

public void setParent(MutableTreeNode newParent)

Passes this message on to super and if the newParent is null, meaning we're no longer in the tree. markInvalid is messaged.

Overrides:

setParent in class DefaultMutableTreeNode

protected void setYOrigin(int newYOrigin)

Sets y origin the user object will be drawn at to newYOrigin.

public int getYOrigin()

Returns the y origin the user object will be drawn at.

protected void shiftYOriginBy(int offset)

Shifts the y origin by offset.

public void updatePreferredSize()

protected void updatePreferredSize(int index)

Updates the preferred size by asking the current renderer for the Dimension needed to draw the user object this instance represents.

public boolean hasValidSize()

Returns true if this node has a valid size.

public Dimension getPreferredSize()

Returns the preferred size needed to draw the value this node represents. Will always return a valid dimenion, but dimension may be 0, 0

public Rectangle getNodeBounds()

Returns the location and size of this node.

public int getVisibleLevel()

The highest visible nodes have a depth of 0.

public int getRow()

Returns the row of the receiver.

public boolean hasBeenExpanded()

Returns true if this node has been expanded at least once.

public boolean isExpanded()

Returns true if the receiver has been expanded.

public boolean isSelected()

Returns true if the receiver is selected.

public boolean isLeaf()

Returns true if the receiver is a leaf.

Overrides:

isLeaf in class DefaultMutableTreeNode

public VisibleTreeNode getLastVisibleNode()

Returns the last visible node that is a child of this instance.

public Enumeration getLoadedChildren(boolean createIfNeeded)

If createIfNeeded is true the children will be loaded from the model if they haven't already been loaded. The children are then loaded, regardless of whether or not this node is currently expanded.

public Enumeration children()

Returns the children of the receiver. If the receiver is not currently expanded, this will return an empty enumeration.

Overrides:

children in class DefaultMutableTreeNode

public boolean isVisible()

Returns true if the receiver is currently visible.

public void modelChildCountChanged()

Messaged when the child count has changed and this node hasn't yet been expanded. This is meant to be used by subclassers.

public int getModelChildCount()

Returns the number of children this will have. If the children have not yet been loaded, this messages the model.

public int visibleChildCount()

Returns the number of visible children. This is a deep search.

public void toggleExpanded()

Toggles the receiver between expanded and collapsed.

protected void didAdjustTree()

Messaged from expand and collapse. This is meant for subclassers that may wish to do something interesting with this.

public void expand()

Expands the receiver.

protected void expand(boolean adjustTree)

Expands this node in the tree. This will load the children from the treeModel if this node has not previously been expanded. If adjustTree is true the tree and selection are updated accordingly.

public void collapse()

Collapsed the receiver.

protected void collapse(boolean adjustTree)

Collapses this node in the tree. If adjustTree is true the tree and selection are updated accordingly.

public Object getValue()

Returns the value the receiver is representing. This is a cover for getUserObject.

protected TreePath getTreePath()

Returns a TreePath instance for this node.

protected Vector getVisibleNodes()

Returns the visibleNodes instance variable of the tree the receiver is contained in.

protected void updateTreeYLocationsFrom(int row)

Messages the tree with updateYLocationsFrom(row).

All Packages  Class Hierarchy  This Package  Previous  Next  Index