JiveTreeCellRenderer.java

package org.chartsy.chatsy.chat.component;

import javax.swing.Icon;
import javax.swing.JTree;
import javax.swing.tree.DefaultTreeCellRenderer;

import java.awt.Component;
import java.awt.Font;

public class JiveTreeCellRenderer extends DefaultTreeCellRenderer
{

    private Object value;
    private boolean isExpanded;

    public JiveTreeCellRenderer()
	{
    }

    public Component getTreeCellRendererComponent(JTree tree, Object value,
		boolean selected, boolean expanded, boolean leaf, int row,
		boolean hasFocus)
	{
        this.value = value;
        final Component c = super.getTreeCellRendererComponent(tree, value, selected, expanded, leaf, row, hasFocus);
        isExpanded = expanded;
        setIcon(getCustomIcon());
        JiveTreeNode node = (JiveTreeNode)value;
        if (node.getAllowsChildren())
            setFont(new Font("Arial", Font.BOLD, 11));
        else 
            setFont(new Font("Arial", Font.PLAIN, 11));
        return c;
    }

    private Icon getCustomIcon()
	{
        if (value instanceof JiveTreeNode)
		{
            JiveTreeNode node = (JiveTreeNode)value;
            if (isExpanded)
                return node.getOpenIcon();
            return node.getClosedIcon();
        }
        return null;
    }

    public Icon getClosedIcon()
	{
        return getCustomIcon();
    }

    public Icon getDefaultClosedIcon()
	{
        return getCustomIcon();
    }

    public Icon getDefaultLeafIcon()
	{
        return getCustomIcon();
    }

    public Icon getDefaultOpenIcon()
	{
        return getCustomIcon();
    }

    public Icon getLeafIcon()
	{
        return getCustomIcon();
    }

    public Icon getOpenIcon()
	{
        return getCustomIcon();
    }

}