public GAGenerationTreePanel(GAObjectMonitor monitor, String parentNodeTitle) {
super();
selectedChildrenPaths = new Vector();
generationNumber = 1;
saveNumber = 0;
generations = new DefaultMutableTreeNode(parentNodeTitle);
gaMonitor = monitor;
setLayout(new BorderLayout());
tree = new JTree(generations);
tree.setShowsRootHandles(true);
tree.setRootVisible(true);
tree.putClientProperty("JTree.lineStyle", "Angled");
// Add Action Listeners
MyTreeSelectionListener listener = new MyTreeSelectionListener(monitor.getSelectionInfoPanel());
MyTreeClickListener mlistener = new MyTreeClickListener();
tree.addTreeSelectionListener(listener);
tree.addMouseListener(mlistener);
// Add Scroll Plane
scrollPane = new JScrollPane(tree);
add(scrollPane, BorderLayout.CENTER);
// Add Menu Bar Functionality
createMenuBar();
add(menuBar, BorderLayout.NORTH);
}
public ReplicatedTreeView(ReplicatedTree tree, Object title) throws Exception {
this.tree = tree;
tree.addReplicatedTreeListener(this);
addNotify();
setTitle("ReplicatedTreeDemo: mbr=" + title);
tree_model = new DefaultTreeModel(root);
jtree = new JTree(tree_model);
jtree.setDoubleBuffered(true);
jtree.getSelectionModel().setSelectionMode(TreeSelectionModel.SINGLE_TREE_SELECTION);
JScrollPane scroll_pane = new JScrollPane(jtree);
populateTree();
getContentPane().add(scroll_pane, BorderLayout.CENTER);
addWindowListener(this);
table_model.setColumnIdentifiers(new String[] {"Name", "Value"});
table_model.addTableModelListener(this);
setTableColumnWidths();
tablePanel = new JPanel();
tablePanel.setLayout(new BorderLayout());
tablePanel.add(table.getTableHeader(), BorderLayout.NORTH);
tablePanel.add(table, BorderLayout.CENTER);
getContentPane().add(tablePanel, BorderLayout.SOUTH);
jtree.addTreeSelectionListener(this); // REVISIT
MouseListener ml =
new MouseAdapter() {
public void mouseClicked(MouseEvent e) {
int selRow = jtree.getRowForLocation(e.getX(), e.getY());
TreePath selPath = jtree.getPathForLocation(e.getX(), e.getY());
if (selRow != -1) {
selected_node = makeFQN(selPath.getPath());
jtree.setSelectionPath(selPath);
if (e.getModifiers() == java.awt.event.InputEvent.BUTTON3_MASK) {
operationsPopup.show(e.getComponent(), e.getX(), e.getY());
}
}
}
};
jtree.addMouseListener(ml);
createMenus();
setLocation(50, 50);
setSize(
getInsets().left + getInsets().right + 485, getInsets().top + getInsets().bottom + 367);
init();
setVisible(true);
}
/**
* Constructor.
*
* @param tree a JTree
*/
public CheckTreeManager(JTree tree) {
this.tree = tree;
selectionModel = new CheckTreeSelectionModel(tree.getModel());
tree.setCellRenderer(new CheckTreeCellRenderer(tree.getCellRenderer(), selectionModel));
tree.addMouseListener(this);
tree.addMouseMotionListener(this);
selectionModel.addTreeSelectionListener(this);
}
public void addResultClickListener(ResultClickListener listener) {
tree.addMouseListener(listener);
}
public JTrees() {
JFrame frame = new JFrame("JTree Demo");
Container c = frame.getContentPane();
c.setLayout(new BorderLayout());
// Create top node of a tree
final DefaultMutableTreeNode top = new DefaultMutableTreeNode("Course");
// Create a subtree UG
final DefaultMutableTreeNode UG = new DefaultMutableTreeNode("UG");
top.add(UG);
final DefaultMutableTreeNode a1 = new DefaultMutableTreeNode("B.E");
UG.add(a1);
final DefaultMutableTreeNode a2 = new DefaultMutableTreeNode("B.C.A");
UG.add(a2);
final DefaultMutableTreeNode a3 = new DefaultMutableTreeNode("B.Sc");
UG.add(a3);
final DefaultMutableTreeNode a4 = new DefaultMutableTreeNode("B.Com");
UG.add(a4);
final DefaultMutableTreeNode a5 = new DefaultMutableTreeNode("B.A");
UG.add(a5);
// Create a subtree PG
final DefaultMutableTreeNode PG = new DefaultMutableTreeNode("PG");
top.add(PG);
final DefaultMutableTreeNode b1 = new DefaultMutableTreeNode("M.E");
PG.add(b1);
final DefaultMutableTreeNode b2 = new DefaultMutableTreeNode("M.C.A");
PG.add(b2);
final DefaultMutableTreeNode b3 = new DefaultMutableTreeNode("M.Sc");
PG.add(b3);
final DefaultMutableTreeNode b4 = new DefaultMutableTreeNode("M.Com");
PG.add(b4);
final DefaultMutableTreeNode b5 = new DefaultMutableTreeNode("M.A");
PG.add(b5);
// Creating tree
final JTree tree = new JTree(top);
int v = ScrollPaneConstants.VERTICAL_SCROLLBAR_AS_NEEDED;
int h = ScrollPaneConstants.HORIZONTAL_SCROLLBAR_AS_NEEDED;
final JScrollPane jsp = new JScrollPane(tree, v, h);
c.add(jsp, BorderLayout.CENTER);
final JTextField text = new JTextField("", 20);
c.add(text, BorderLayout.SOUTH);
tree.addMouseListener(
new MouseAdapter() {
public void mouseClicked(MouseEvent me) {
TreePath tp = tree.getPathForLocation(me.getX(), me.getY());
if (tp != null) text.setText(tp.toString());
else text.setText("");
}
});
if (top.children() == b1) {
System.out.println("M.E Cource Selected");
}
frame.setSize(300, 200);
frame.setVisible(true);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
public void init() {
guangdong.add(foshan);
guangdong.add(shantou);
guangxi.add(guilin);
guangxi.add(nanning);
root.add(guangdong);
root.add(guangxi);
jf = new JFrame("树");
tree = new JTree(root);
// 获取JTree对应的TreeModel对象
model = (DefaultTreeModel) tree.getModel();
// 设置JTree可编辑
tree.setEditable(true);
MouseListener ml =
new MouseAdapter() {
// 按下鼠标时候获得被拖动的节点
public void mousePressed(MouseEvent e) {
// 如果需要唯一确定某个节点，必须通过TreePath来获取。
TreePath tp = tree.getPathForLocation(e.getX(), e.getY());
if (tp != null) {
movePath = tp;
}
}
// 鼠标松开时获得需要拖到哪个父节点
public void mouseReleased(MouseEvent e) {
// 根据鼠标松开时的TreePath来获取TreePath
TreePath tp = tree.getPathForLocation(e.getX(), e.getY());
if (tp != null && movePath != null) {
// 阻止向子节点拖动
if (movePath.isDescendant(tp) && movePath != tp) {
JOptionPane.showMessageDialog(
jf, "目标节点是被移动节点的子节点，无法移动！", "非法操作", JOptionPane.ERROR_MESSAGE);
return;
}
// 既不是向子节点移动，而且鼠标按下、松开的不是同一个节点
else if (movePath != tp) {
System.out.println(tp.getLastPathComponent());
// add方法可以先将原节点从原父节点删除，再添加到新父节点中
((DefaultMutableTreeNode) tp.getLastPathComponent())
.add((DefaultMutableTreeNode) movePath.getLastPathComponent());
movePath = null;
tree.updateUI();
}
}
}
};
tree.addMouseListener(ml);
JPanel panel = new JPanel();
addSiblingButton.addActionListener(
new ActionListener() {
public void actionPerformed(ActionEvent event) {
// 获取选中节点
DefaultMutableTreeNode selectedNode =
(DefaultMutableTreeNode) tree.getLastSelectedPathComponent();
// 如果节点为空，直接返回
if (selectedNode == null) return;
// 获取该选中节点的父节点
DefaultMutableTreeNode parent = (DefaultMutableTreeNode) selectedNode.getParent();
// 如果父节点为空，直接返回
if (parent == null) return;
// 创建一个新节点
DefaultMutableTreeNode newNode = new DefaultMutableTreeNode("新节点");
// 获取选中节点的选中索引
int selectedIndex = parent.getIndex(selectedNode);
// 在选中位置插入新节点
model.insertNodeInto(newNode, parent, selectedIndex + 1);
// --------下面代码实现显示新节点（自动展开父节点）-------
// 获取从根节点到新节点的所有节点
TreeNode[] nodes = model.getPathToRoot(newNode);
// 使用指定的节点数组来创建TreePath
TreePath path = new TreePath(nodes);
// 显示指定TreePath
tree.scrollPathToVisible(path);
}
});
panel.add(addSiblingButton);
addChildButton.addActionListener(
new ActionListener() {
public void actionPerformed(ActionEvent event) {
// 获取选中节点
DefaultMutableTreeNode selectedNode =
(DefaultMutableTreeNode) tree.getLastSelectedPathComponent();
// 如果节点为空，直接返回
if (selectedNode == null) return;
// 创建一个新节点
DefaultMutableTreeNode newNode = new DefaultMutableTreeNode("新节点");
// 直接通过model来添加新节点，则无需通过调用JTree的updateUI方法
// model.insertNodeInto(newNode, selectedNode, selectedNode.getChildCount());
// 直接通过节点添加新节点，则需要调用tree的updateUI方法
selectedNode.add(newNode);
// --------下面代码实现显示新节点（自动展开父节点）-------
TreeNode[] nodes = model.getPathToRoot(newNode);
TreePath path = new TreePath(nodes);
tree.scrollPathToVisible(path);
tree.updateUI();
}
});
panel.add(addChildButton);
deleteButton.addActionListener(
new ActionListener() {
public void actionPerformed(ActionEvent event) {
DefaultMutableTreeNode selectedNode =
(DefaultMutableTreeNode) tree.getLastSelectedPathComponent();
if (selectedNode != null && selectedNode.getParent() != null) {
// 删除指定节点
model.removeNodeFromParent(selectedNode);
}
}
});
panel.add(deleteButton);
editButton.addActionListener(
new ActionListener() {
public void actionPerformed(ActionEvent event) {
TreePath selectedPath = tree.getSelectionPath();
if (selectedPath != null) {
// 编辑选中节点
tree.startEditingAtPath(selectedPath);
}
}
});
panel.add(editButton);
jf.add(new JScrollPane(tree));
jf.add(panel, BorderLayout.SOUTH);
jf.pack();
jf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
jf.setVisible(true);
}
