net.alantea.swing.tree.TreeObjectCellRenderer Maven / Gradle / Ivy

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package net.alantea.swing.tree;

import java.awt.Component;

import javax.swing.ImageIcon;
import javax.swing.JComponent;
import javax.swing.JLabel;
import javax.swing.JTree;
import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.tree.DefaultTreeCellRenderer;

public class TreeObjectCellRenderer extends DefaultTreeCellRenderer
{
   private static final long serialVersionUID = 1L;

   TreeObjectCellRenderer()
   {
   }

   @Override
   public Component getTreeCellRendererComponent(JTree tree, Object value, boolean selected, boolean expanded,
         boolean leaf, int row, boolean hasFocus)
   {
      JComponent component  = (JComponent) super.getTreeCellRendererComponent(tree, value, selected, expanded, leaf, row,hasFocus);

      component.setOpaque(true);
      Object o = ((DefaultMutableTreeNode) value).getUserObject();
      if (o instanceof TreeObject)
      {
         TreeObject object = (TreeObject)o;
         if (object.getImage() != null)
         {
            ((JLabel) component).setIcon(new ImageIcon(object.getImage()));
         }
         ((JLabel) component).setText(object.getName());
      }
      else
      {
         ((JLabel) component).setText(o.toString());
      }
      
      if (selected)
      {
         component.setBackground(tree.getBackground().brighter());
      }
      else
      {
         component.setBackground(tree.getBackground());
      }
      return component;
   }

}