Class ShadowPopupBorder

  • All Implemented Interfaces:
    java.io.Serializable, javax.swing.border.Border

    final class ShadowPopupBorder
    extends javax.swing.border.AbstractBorder
    A border with a drop shadow intended to be used as the outer border of popups. Can paint the screen background if used with heavy-weight popup windows.
    Version:
    $Revision: 1.9 $
    See Also:
    ShadowPopup, ShadowPopupFactory
    • Field Summary

      Fields 
      Modifier and Type Field Description
      private static ShadowPopupBorder instance
      The singleton instance used to draw all borders.
      private static java.awt.Image shadow
      The drop shadow is created from a PNG image with 8 bit alpha channel.
      private static int SHADOW_SIZE
      The drop shadow needs 5 pixels at the bottom and the right hand side.
    • Method Summary

      All Methods Static Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      java.awt.Insets getBorderInsets​(java.awt.Component c)
      Returns the insets of the border.
      java.awt.Insets getBorderInsets​(java.awt.Component c, java.awt.Insets insets)
      Reinitializes the insets parameter with this Border's current Insets.
      static ShadowPopupBorder getInstance()
      Returns the singleton instance used to draw all borders.
      void paintBorder​(java.awt.Component c, java.awt.Graphics g, int x, int y, int width, int height)
      Paints the border for the specified component with the specified position and size.
      • Methods inherited from class javax.swing.border.AbstractBorder

        getBaseline, getBaselineResizeBehavior, getInteriorRectangle, getInteriorRectangle, isBorderOpaque
      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
    • Field Detail

      • SHADOW_SIZE

        private static final int SHADOW_SIZE
        The drop shadow needs 5 pixels at the bottom and the right hand side.
        See Also:
        Constant Field Values
      • instance

        private static ShadowPopupBorder instance
        The singleton instance used to draw all borders.
      • shadow

        private static java.awt.Image shadow
        The drop shadow is created from a PNG image with 8 bit alpha channel.
    • Constructor Detail

      • ShadowPopupBorder

        ShadowPopupBorder()
    • Method Detail

      • getInstance

        public static ShadowPopupBorder getInstance()
        Returns the singleton instance used to draw all borders.
      • paintBorder

        public void paintBorder​(java.awt.Component c,
                                java.awt.Graphics g,
                                int x,
                                int y,
                                int width,
                                int height)
        Paints the border for the specified component with the specified position and size.
        Specified by:
        paintBorder in interface javax.swing.border.Border
        Overrides:
        paintBorder in class javax.swing.border.AbstractBorder
      • getBorderInsets

        public java.awt.Insets getBorderInsets​(java.awt.Component c)
        Returns the insets of the border.
        Specified by:
        getBorderInsets in interface javax.swing.border.Border
        Overrides:
        getBorderInsets in class javax.swing.border.AbstractBorder
      • getBorderInsets

        public java.awt.Insets getBorderInsets​(java.awt.Component c,
                                               java.awt.Insets insets)
        Reinitializes the insets parameter with this Border's current Insets.
        Overrides:
        getBorderInsets in class javax.swing.border.AbstractBorder
        Parameters:
        c - the component for which this border insets value applies
        insets - the object to be reinitialized
        Returns:
        the insets object