Class DecorationPainterUtils


  • public class DecorationPainterUtils
    extends Object
    Contains utility methods related to decoration painters. This class is for internal use only.
    • Constructor Detail

      • DecorationPainterUtils

        public DecorationPainterUtils()
    • Method Detail

      • setDecorationType

        public static void setDecorationType​(JComponent comp,
                                             DecorationAreaType type)
        Sets the decoration type of the specified component.
        Parameters:
        comp - Component.
        type - Decoration type of the component and its children.
      • clearDecorationType

        public static void clearDecorationType​(JComponent comp)
        Clears the client properties related to the decoration area type.
        Parameters:
        comp - Component.
      • getDecorationType

        public static DecorationAreaType getDecorationType​(Component comp)
        Returns the decoration area type of the specified component. The component and its ancestor hierarchy are scanned for the registered decoration area type. If setDecorationType(JComponent, DecorationAreaType) has been called on the specified component, the matching decoration type is returned. Otherwise, the component hierarchy is scanned to find the closest ancestor that was passed to setDecorationType(JComponent, DecorationAreaType) - and its decoration type is returned. If neither the component, nor any one of its parent components has been passed to the setter method, DecorationAreaType.NONE is returned.
        Parameters:
        comp - Component.
        Returns:
        Decoration area type of the component.
      • paintDecorationBackground

        public static void paintDecorationBackground​(Graphics g,
                                                     Component c,
                                                     boolean force)
        Paints the decoration background on the specified component. The decoration background is not painted when the force parameter is false and at least one of the following conditions holds:
        • The component is in a cell renderer.
        • The component is not showing on the screen.
        • The component is in the preview mode.
        Parameters:
        g - Graphics context.
        c - Component.
        force - If true, the painting of decoration background is enforced.