【基于spark IM 的二次开发笔记】第二天树形结构-白红宇

【基于spark IM 的二次开发笔记】第二天树形结构

阅读量：4956 次

发布时间：2019-06-12

本文共 4013 字，大约阅读时间需要 13 分钟。

MessageTreePlugin.java

Java代码

final MessageTreeTab messageTreeTab = new MessageTreeTab();

* Adds a tab to Spark

private void addTabToSpark(){

// Get Workspace UI from SparkManager

Workspace workspace = SparkManager.getWorkspace();

// Retrieve the Tabbed Pane from the WorkspaceUI.

SparkTabbedPane tabbedPane = workspace.getWorkspacePane();

// Add own Tab.

tabbedPane.addTab("消息", null,<SPAN style="COLOR: #ff0000">messageTreeTab</SPAN>);

//messageTreeTab.invokeDialog();

}

MessageTreeTab.java

Java代码

public class MessageTreeTab extends JPanel {

private static final long serialVersionUID = -381458717030745122L;

private JiveTreeNode msgType;

private List<JiveTreeNode> groupNodes = new ArrayList<JiveTreeNode>();

private MessageTree msgTree;

private JiveTable messageType;

public MessageTreeTab(){

setLayout(new GridBagLayout());

msgType = new JiveTreeNode("分类");

msgTree = <SPAN style="COLOR: #ff0000">new MessageTree</SPAN>(msgType);

msgTree.setPreferredSize(new Dimension(150, 400));

String groupName = Res.getString("status.online");

String[] headers = new String[]{
"类型","时间","内容"};

messageType = new JiveTable(headers, null);

messageType.setPreferredSize(new Dimension(350, 400));

final JScrollPane pane = new JScrollPane(messageType);

pane.setBorder(BorderFactory.createTitledBorder(Res.getString("label.message").replace("&", "")));

final JScrollPane treePane = new JScrollPane(msgTree);

treePane.setBorder(BorderFactory.createTitledBorder(Res.getString("message.send.to.these.people")));

// treePane.getVerticalScrollBar().setBlockIncrement(200);

// treePane.getVerticalScrollBar().setUnitIncrement(20);

// Add to UI

add(treePane, new GridBagConstraints(0, 0, 1, 1, 0.5, 1.0, GridBagConstraints.WEST, GridBagConstraints.BOTH, new Insets(5, 5, 5, 0), 0, 0));

add(pane, new GridBagConstraints(1, 0, 1, 3, 0.5, 1.0, GridBagConstraints.WEST, GridBagConstraints.BOTH, new Insets(2, 0, 2, 5), 0, 0));

msgTree.expandTree();

}

* Displays the message tree dialog.

public void invokeDialog() {

JiveTreeNode groupNode = new JiveTreeNode("通知类型1");

groupNode.add( new JiveTreeNode("通知类型11"));

groupNode.add(new JiveTreeNode("通知类型12"));

groupNode.add(new JiveTreeNode("通知类型13"));

groupNode.add(new JiveTreeNode("通知类型14"));

groupNode.add(new JiveTreeNode("通知类型15"));

JiveTreeNode groupNode2 = new JiveTreeNode("通知类型2");

groupNode2.add( new JiveTreeNode("通知类型21"));

groupNode2.add(new JiveTreeNode("通知类型22"));

groupNode2.add(new JiveTreeNode("通知类型23"));

groupNode2.add(new JiveTreeNode("通知类型24"));

groupNode2.add(new JiveTreeNode("通知类型25"));

msgType.add(groupNode);

msgType.add(groupNode2);

}

}

 
     
      MessageTree.java 
 
    
 
     
      
      
        Java代码 
      
 
     
 
      
      public class MessageTree extends JPanel {   
 
        
 
          private static final long serialVersionUID = 5992552368286729600L;   
 
        
 
           private Tree tree;   
 
             
 
          public MessageTree(JiveTreeNode rootNode) {   
 
               tree = new Tree(rootNode);   
 
               tree.setCellRenderer(new DefaultTreeCellRenderer());   
 
              tree.setRowHeight(18);   
 
              tree.getSelectionModel().setSelectionMode(TreeSelectionModel.SINGLE_TREE_SELECTION);   
 
              tree.setToggleClickCount(1000);   
 
              tree.putClientProperty("JTree.lineStyle", "Angled");   
 
              tree.addMouseListener(new NodeSelectionListener(tree));   
 
        
 
              setLayout(new BorderLayout());   
 
              add(tree);   
 
          }   
 
        
 
          class NodeSelectionListener extends MouseAdapter {   
 
              JTree tree;   
 
        
 
              NodeSelectionListener(JTree tree) {   
 
                  this.tree = tree;   
 
              }   
 
        
 
              public void mouseClicked(MouseEvent e) {   
 
                  int x = e.getX();   
 
                  int y = e.getY();   
 
                  int row = tree.getRowForLocation(x, y);   
 
                  TreePath path = tree.getPathForRow(row);   
 
                  if (path != null) {   
 
                      JiveTreeNode node = (JiveTreeNode)path.getLastPathComponent();   
 
                          if (!node.isLeaf()) {   
 
                              tree.expandPath(path);   
 
                          }   
 
                          else {   
 
                              tree.collapsePath(path);   
 
                          }   
 
                      ((DefaultTreeModel)tree.getModel()).nodeChanged(node);   
 
                      // I need revalidate if node is root.  but why?   
 
        
 
                      tree.revalidate();   
 
                      tree.repaint();   
 
        
 
                  }   
 
              }   
 
          }   
 
        
 
          public JTree getTree() {   
 
              return tree;   
 
          }   
 
             
 
          /**  
 
           * Call to expand the entire tree.  
 
           */  
 
          public void expandTree() {   
 
              for (int i = 0; i <= tree.getRowCount(); i++) {   
 
                  tree.expandPath(tree.getPathForRow(i));   
 
              }   
 
          }   
 
      }