更改Jtree根节点的图标 [英] Change the icon of Jtree Root Node

问题描述

下面是我用根节点数据生成"创建的Jtree的代码.

Below is the code i have created a Jtree with root Node "Data Generation..

rootNode = new DefaultMutableTreeNode("Data Generation");
treeModel =new DefaultTreeModel(rootNode);
tree = new JTree(treeModel);            
tree.setEditable(true);

我已经更改了叶节点的图标图像

I have changed the icon images for the leaf node

childNode=new DefaultMutableTreeNode(existingtagnames.get(len).toString());
DefaultTreeCellRenderer renderer = (DefaultTreeCellRenderer) tree.getCellRenderer();
ImageIcon imageIcon = new ImageIcon(Generate_Explorer.class.getResource("/org/qmon/generate/Images/Leaf Node.png"));
renderer.setLeafIcon(imageIcon);
tree.setCellRenderer(renderer);

我不知道如何处理根节点..我在互联网上搜索但找不到它.

I dont know how to do for the Root node.. i searched in the internet but unable to find it.

谢谢.

推荐答案

如果在渲染器上使用这两种方法，则应在非叶子节点上设置图标.

If you use these two methods on the renderer, it should set your icon on non-leaf nodes.

setClosedIcon(Icon newIcon)

setOpenIcon(Icon icon)

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