Java javax.swing.text Interface Highlighter（JDK8）

Method Detail

• install

  void install(JTextComponent c)

  Called when the UI is being installed into the interface of a JTextComponent. This can be used to gain access to the model that is being navigated by the implementation of this interface.

  Parameters:

  c - the JTextComponent editor

• deinstall

  void deinstall(JTextComponent c)

  Called when the UI is being removed from the interface of a JTextComponent. This is used to unregister any listeners that were attached.

  Parameters:

  c - the JTextComponent editor

• paint

  void paint(Graphics g)

  Renders the highlights.

  Parameters:

  g - the graphics context.

• addHighlight

  Object addHighlight(int p0,
                      int p1,
                      Highlighter.HighlightPainter p)
               throws BadLocationException

  Adds a highlight to the view. Returns a tag that can be used to refer to the highlight.

  Parameters:

  p0 - the beginning of the range >= 0

  p1 - the end of the range >= p0

  p - the painter to use for the actual highlighting

  Returns:

  an object that refers to the highlight

  Throws:

  BadLocationException - for an invalid range specification

• removeHighlight

  void removeHighlight(Object tag)

  Removes a highlight from the view.

  Parameters:

  tag - which highlight to remove

• removeAllHighlights

  void removeAllHighlights()

  Removes all highlights this highlighter is responsible for.

• changeHighlight

  void changeHighlight(Object tag,
                       int p0,
                       int p1)
                throws BadLocationException

  Changes the given highlight to span a different portion of the document. This may be more efficient than a remove/add when a selection is expanding/shrinking (such as a sweep with a mouse) by damaging only what changed.

  Parameters:

  tag - which highlight to change

  p0 - the beginning of the range >= 0

  p1 - the end of the range >= p0

  Throws:

  BadLocationException - for an invalid range specification

• getHighlights

  Highlighter.Highlight[] getHighlights()

  Fetches the current list of highlights.

  Returns:

  the highlight list