类分层结构
- java.lang.Object
- com.fr.design.cell.bar.BarHelper
- java.awt.Component (implements java.awt.image.ImageObserver, java.awt.MenuContainer, java.io.Serializable)
- java.awt.Container
- javax.swing.JComponent (implements java.io.Serializable)
- javax.swing.AbstractButton (implements java.awt.ItemSelectable, javax.swing.SwingConstants)
- javax.swing.JButton (implements javax.accessibility.Accessible)
- javax.swing.plaf.basic.BasicArrowButton (implements javax.swing.SwingConstants)
- javax.swing.JScrollBar (implements javax.accessibility.Accessible, java.awt.Adjustable)
- javax.swing.plaf.ComponentUI
- javax.swing.plaf.ScrollBarUI
- javax.swing.plaf.basic.BasicScrollBarUI (implements java.awt.LayoutManager, javax.swing.SwingConstants)
- com.fr.design.cell.bar.ScrollBarUIConstant