Class DataNodeTransferHandler

Method Details

• getSourceActions

  public int getSourceActions(JComponent comp)

  Overrides:

  getSourceActions in class TransferHandler

• getVisualRepresentation

  public Icon getVisualRepresentation(Transferable trans)

  Overrides:

  getVisualRepresentation in class TransferHandler

• createTransferable

  protected Transferable createTransferable(JComponent comp)

  Overrides:

  createTransferable in class TransferHandler

• setNodeMaker

  public void setNodeMaker(DataNodeFactory nodeMaker)

  Sets the DataNodeFactory which will be used by this handler to perform import of Transferables (convert them into DataNodes). By default this is set to null; unless it is set to a non-null value, no node import will be permitted.

• canImport

  public boolean canImport(JComponent comp, DataFlavor[] flavors)

  If we are configured to import data, return true, on the grounds that the DataNodeFactory should be able to have a go at turning almost anything into a DataNode. However, only do it if the drop position would not be over a node in the tree, since that might convey a false impression of what's going to happen (the node will get appended to the root).

  Overrides:

  canImport in class TransferHandler

• importData

  public boolean importData(JComponent comp, Transferable trans)

  Attempts to import a transferable into the tree.

  Overrides:

  importData in class TransferHandler

• pasteSystemSelection

  public void pasteSystemSelection(JComponent comp)

  Pastes the system selection into the tree window. This behaviour is seen in JTextComponent and subclasses (see javax.swing.text.DefaultCaret for the implementation), but not elsewhere in the JFC; however I think it's quite useful, it means you can grab a text string and middle-click it on top of a window to load that URL (or whatever) in.

  This implementation only works with string-like contents of the selection. Short strings it feeds to the data node factory as Strings, and long ones it ignores.

  Parameters:

  comp - the component into which to paste