Swing/MenuWithShadow のバックアップの現在との差分(No.7)

#spanend
#spanadd
public class CustomPopupMenuUI extends BasicPopupMenuUI {
#spanend
  public static ComponentUI createUI(JComponent c) {
    return new CustomPopupMenuUI();
  }

#spandel
#screenshot
#spanend
  private static boolean isHeavyWeightContainer(Component contents) {
    for (Container p = contents.getParent(); p != null; p = p.getParent()) {
      if ((p instanceof JWindow) || (p instanceof Panel)) {
        return true;
      }
    }
    return false;
  }

#spandel
**サンプルコード [#eb189a65]
#spanend
#spandel
#code{{
#spanend
 public class CustomPopupMenuUI extends BasicPopupMenuUI {
   public static ComponentUI createUI(JComponent c) {
     return new CustomPopupMenuUI();
   }
   private static int OFF = 4;
   private static float ALPHA = 0.12f;
   public static JFrame frame = null;
   private static boolean isInRootPanel(JComponent popup, Point p) {
     if(frame==null) return false;
     Rectangle r = frame.getBounds();
     Dimension d = popup.getPreferredSize();
     return r.contains(p.x, p.y, d.width+OFF, d.height+OFF);
   }
   public Popup getPopup(JPopupMenu popup, int x, int y) {
     Popup pp = super.getPopup(popup,x,y);
     JPanel panel = (JPanel)popup.getParent();
     Point p = new Point(x, y);
     if(isInRootPanel(panel, p)) {
       //System.out.println("inner");
       panel.setBorder(new ShadowBorderInPanel());
     }else{
       //System.out.println("outer");
       panel.setBorder(new ShadowBorder(panel,p));
     }
     panel.setOpaque(false);
     return pp;
   }
 ......
  public Popup getPopup(JPopupMenu popup, int x, int y) {
    Popup pp = super.getPopup(popup, x, y);
    JPanel panel = (JPanel) popup.getParent();
    if (isHeavyWeightContainer(panel)) {
      System.out.println("outer");
      Point p = new Point(x, y);
      panel.setBorder(new ShadowBorder(panel, p));
    } else {
      System.out.println("inner");
      panel.setBorder(new ShadowBorderInPanel());
    }
    panel.setOpaque(false);
    return pp;
  }
#spanadd
// ...
#spanend