package open.dolphin.client;
import java.util.Enumeration;
import java.util.Hashtable;
import javax.swing.Icon;
import javax.swing.JComponent;
import javax.swing.JMenu;
import javax.swing.JMenuItem;
import javax.swing.TransferHandler;
import javax.swing.tree.DefaultMutableTreeNode;
import open.dolphin.infomodel.ModuleInfoBean;
/**
* StampTreeMenuBuilder
*
* @author Kazushi Minagawa
*/
public class StampTreeMenuBuilder {
private static final Icon icon = GUIConst.ICON_FOLDER_16;
private Hashtable<Object, JMenu> parents;
public StampTreeMenuBuilder() {
}
public JMenu build(StampTree stampTree, JComponent cmp, TransferHandler handler) {
if (parents == null) {
parents = new Hashtable<Object, JMenu>(10, 0.75f);
} else {
parents.clear();
}
DefaultMutableTreeNode rootNode = (DefaultMutableTreeNode) stampTree.getModel().getRoot();
JMenu top = new JMenu(stampTree.getTreeName());
parents.put(rootNode, top);
Enumeration e = rootNode.preorderEnumeration();
if (e != null) {
e.nextElement(); // consume root
while (e.hasMoreElements()) {
parseChildren((StampTreeNode) e.nextElement(), cmp, handler);
}
}
return top;
}
private void parseChildren(StampTreeNode node, JComponent comp, TransferHandler handler) {
if (!node.isLeaf()) {
JMenu subMenu = new JMenu(node.getUserObject().toString());
JMenu parent = parents.get(node.getParent());
parent.add(subMenu);
parents.put(node, subMenu);
// 配下の子を全て列挙しJmenuItemにまとめる
JMenuItem item = new JMenuItem(node.getUserObject().toString());
item.setIcon(icon);
subMenu.add(item);
if (comp != null && handler != null) {
item.addActionListener(new TransferAction(comp, handler, new LocalStampTreeNodeTransferable(node)));
} else {
item.setEnabled(false);
}
} else {
ModuleInfoBean info = (ModuleInfoBean) node.getUserObject();
JMenuItem item = new JMenuItem(info.getStampName());
if (comp != null && handler != null) {
item.addActionListener(new TransferAction(comp, handler, new LocalStampTreeNodeTransferable(node)));
} else {
item.setEnabled(false);
}
JMenu parent = parents.get(node.getParent());
parent.add(item);
}
}
}