Class PDFTreeModel

Method Details

• setDocument

  public void setDocument(PDDocument doc)

  Set the document to display in the tree.

  Parameters:

  doc - The document to display in the tree.

• addTreeModelListener

  public void addTreeModelListener(TreeModelListener l)

  Adds a listener for the TreeModelEvent posted after the tree changes.

  Specified by:

  addTreeModelListener in interface TreeModel

  Parameters:

  l - the listener to add

  See Also:

  • removeTreeModelListener(javax.swing.event.TreeModelListener)

• getChild

  public Object getChild(Object parent, int index)

  Returns the child of parent at index index in the parent's child array. parent must be a node previously obtained from this data source. This should not return null if index is a valid index for parent (that is index >= 0 && index < getChildCount(parent)).

  Specified by:

  getChild in interface TreeModel

  Parameters:

  parent - a node in the tree, obtained from this data source

  index - The index into the parent object to location the child object.

  Returns:

  the child of parent at index index

• getChildCount

  public int getChildCount(Object parent)

  Returns the number of children of parent. Returns 0 if the node is a leaf or if it has no children. parent must be a node previously obtained from this data source.

  Specified by:

  getChildCount in interface TreeModel

  Parameters:

  parent - a node in the tree, obtained from this data source

  Returns:

  the number of children of the node parent

• getIndexOfChild

  public int getIndexOfChild(Object parent, Object child)

  Returns the index of child in parent. If parent is null or child is null, returns -1.

  Specified by:

  getIndexOfChild in interface TreeModel

  Parameters:

  parent - a note in the tree, obtained from this data source

  child - the node we are interested in

  Returns:

  the index of the child in the parent, or -1 if either child or parent are null

• getRoot

  public Object getRoot()

  Returns the root of the tree. Returns null only if the tree has no nodes.

  Specified by:

  getRoot in interface TreeModel

  Returns:

  the root of the tree

• isLeaf

  public boolean isLeaf(Object node)

  Returns true if node is a leaf. It is possible for this method to return false even if node has no children. A directory in a filesystem, for example, may contain no files; the node representing the directory is not a leaf, but it also has no children.

  Specified by:

  isLeaf in interface TreeModel

  Parameters:

  node - a node in the tree, obtained from this data source

  Returns:

  true if node is a leaf

• removeTreeModelListener

  public void removeTreeModelListener(TreeModelListener l)

  Removes a listener previously added with addTreeModelListener.

  Specified by:

  removeTreeModelListener in interface TreeModel

  Parameters:

  l - the listener to remove

  See Also:

  • addTreeModelListener(javax.swing.event.TreeModelListener)

• valueForPathChanged

  public void valueForPathChanged(TreePath path, Object newValue)

  Messaged when the user has altered the value for the item identified by path to newValue. If newValue signifies a truly new value the model should post a treeNodesChanged event.

  Specified by:

  valueForPathChanged in interface TreeModel

  Parameters:

  path - path to the node that the user has altered

  newValue - the new value from the TreeCellEditor