IT. Expert System.

Java Standard Edition (SE)

Highlighter


javax.swing.text

Interface Highlighter

    • 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


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