Java Code Examples for javax.swing.event.TreeExpansionEvent#getPath()

@Override
public void treeWillExpand(TreeExpansionEvent event) throws ExpandVetoException {

    TreePath selPath = event.getPath();
    DefaultMutableTreeNode node = (DefaultMutableTreeNode) selPath.getLastPathComponent();
    Question question = (Question) node.getUserObject();
    if (!isOneOpen(node)) {
        return;
    } else if ("lock".equals(question.getStatus())) {
        MessageUtils.showMsg(toolWindow.getContentManager().getComponent(), MessageType.INFO, "info", "no permissions");
        throw new ExpandVetoException(event);
    }
    ProgressManager.getInstance().run(new Task.Backgroundable(project,"leetcode.editor.tree",false) {
        @Override
        public void run(@NotNull ProgressIndicator progressIndicator) {
            loadData(question,node,selPath,tree,toolWindow);
        }
    });
    throw new ExpandVetoException(event);
}
 

/**
 * todo 1. Make non-static install/uninstall methods
 */

@Override
public void treeExpanded ( final TreeExpansionEvent event )
{
    final JTree tree = ( JTree ) event.getSource ();
    final TreePath expandedPath = event.getPath ();
    final Object expandedObject = expandedPath.getLastPathComponent ();
    if ( tree.getModel ().getChildCount ( expandedObject ) == 1 )
    {
        final Object[] parentPath = expandedPath.getPath ();
        final Object[] path = Arrays.copyOf ( parentPath, parentPath.length + 1 );
        path[ parentPath.length ] = tree.getModel ().getChild ( expandedObject, 0 );
        tree.expandPath ( new TreePath ( path ) );
    }
}
 

public void treeExpanded(TreeExpansionEvent event) {
  // ensure children gets expanded later
  if (event.getPath() != null) {
    Object lastElement = event.getPath().getLastPathComponent();
    if (lastElement instanceof FileTreeNode && useNodeQueue) {
      if (((FileTreeNode)lastElement).isLoaded()) {
        for (Enumeration e = ((FileTreeNode)lastElement).children();
          e.hasMoreElements();
          ) {
          //Object node = enum.nextElement();
          addToQueue((FileTreeNode)e.nextElement(), tree);
        }
      }
    }
  }
}
 

@Override
public void treeExpanded(final TreeExpansionEvent event) {
	final TreePath treePath = event.getPath();

	final Object expandedTreePathObject = treePath.getLastPathComponent();
	if (!(expandedTreePathObject instanceof TreeNode)) {
		return;
	}

	final TreeNode expandedTreeNode = (TreeNode) expandedTreePathObject;
	if (expandedTreeNode.getChildCount() == 1) {
		final TreeNode descendantTreeNode = expandedTreeNode.getChildAt(0);

		if (descendantTreeNode.isLeaf()) {
			return;
		}

		final TreePath nextTreePath = treePath.pathByAddingChild(descendantTreeNode);
		tree.expandPath(nextTreePath);
	}
}
 

/** Sense node expansion events (the method name is missleading). */
public void treeCollapsed(TreeExpansionEvent tee) {
	TreePath path = tee.getPath();
	//hs_expanded_paths.remove(path);
	updateInDatabase(path);
	//Utils.log2("collapsed " + path);
}
 

@Override
public void treeCollapsed(TreeExpansionEvent event) {
	if (isFiltered()) {
		return;
	}
	TreePath path = event.getPath();
	GTreeNode node = (GTreeNode) path.getLastPathComponent();
	if ((node instanceof CategoryNode)) {
		CategoryNode categoryNode = (CategoryNode) node;
		categoryNode.setChildren(null);
	}
}
 

@Override
public void treeWillExpand(TreeExpansionEvent event) throws ExpandVetoException {
  final TreePath path = event.getPath();
  if (path == null) return;
  final PackageDependenciesNode node = (PackageDependenciesNode)path.getLastPathComponent();
  node.sortChildren();
  ((DefaultTreeModel)myTree.getModel()).reload(node);
}
 

@Override
public void treeExpanded(final TreeExpansionEvent event) {
  if (myTreeBuilder == null || !myTreeBuilder.isNodeBeingBuilt(event.getPath())) return;

  TreePath path = event.getPath();
  DefaultMutableTreeNode node = (DefaultMutableTreeNode)path.getLastPathComponent();
  if (node.getUserObject() instanceof FileNodeDescriptor) {
    FileNodeDescriptor nodeDescriptor = (FileNodeDescriptor)node.getUserObject();
    final FileElement fileDescriptor = nodeDescriptor.getElement();
    final VirtualFile virtualFile = fileDescriptor.getFile();
    if (virtualFile != null) {
      if (!myEverExpanded.contains(virtualFile)) {
        if (virtualFile instanceof NewVirtualFile) {
          ((NewVirtualFile)virtualFile).markDirty();
        }
        myEverExpanded.add(virtualFile);
      }


      final boolean async = myTreeBuilder.isToBuildChildrenInBackground(virtualFile);
      if (virtualFile instanceof NewVirtualFile) {
        RefreshQueue.getInstance().refresh(async, false, null, ModalityState.stateForComponent(myTree), virtualFile);
      }
      else {
        virtualFile.refresh(async, false);
      }
    }
  }
}
 

public void treeExpanded(TreeExpansionEvent ev) {
            final TreePath path = ev.getPath();
            final Object parentObj = path.getLastPathComponent();
            if (parentObj instanceof DBBrowserNode) {
                startExpandingTree((DBBrowserNode) parentObj, false, null);
//                expandedPathNames.put(path.toString(), null);
            }
        }
 

public void treeExpanded(TreeExpansionEvent ev) {
	final TreePath path = ev.getPath();
	final Object parentObj = path.getLastPathComponent();
	if (parentObj instanceof DBBrowserNode) {
		startExpandingTree((DBBrowserNode) parentObj, false, null);
		// expandedPathNames.put(path.toString(), null);
	}
}
 

@Override public void treeWillExpand(TreeExpansionEvent e) throws ExpandVetoException {
  TreePath path = e.getPath();
  Object o = path.getLastPathComponent();
  if (o instanceof DefaultMutableTreeNode) {
    DefaultMutableTreeNode node = (DefaultMutableTreeNode) o;
    File file = (File) node.getUserObject();
    String name = file.getName();
    // System.out.println(name);
    if (!name.isEmpty() && name.codePointAt(0) == '.') {
      throw new ExpandVetoException(e, "Tree expansion cancelled");
    }
  }
}
 

@Override public void treeWillExpand(TreeExpansionEvent e) throws ExpandVetoException {
  TreePath path = e.getPath();
  Object o = path.getLastPathComponent();
  if (o instanceof DefaultMutableTreeNode) {
    DefaultMutableTreeNode node = (DefaultMutableTreeNode) o;
    File file = (File) node.getUserObject();
    if (file.isFile()) {
      throw new ExpandVetoException(e, "Tree expansion cancelled");
    }
  }
}
 

public void treeExpanded(TreeExpansionEvent evt)
{
	// Get the node to be expanded.
	final TreePath path = evt.getPath();
	final Object parentObj = path.getLastPathComponent();
	if (parentObj instanceof ObjectTreeNode)
	{
		startExpandingTree((ObjectTreeNode)parentObj, false, null, false);
		_expandedPathNames.put(path.toString(), null);
	}
}
 

@Override
public void treeExpanded(final TreeExpansionEvent evt) {
	// The expanded path
	final TreePath path = evt.getPath();
	// The tree
	final JTree tree = (JTree) evt.getSource();

	// Get the last component of the path and
	// arrange to have it fully populated.
	final FileTreeNode node = (FileTreeNode) path.getLastPathComponent();
	if (node.populateDirectories(true)) {
		((DefaultTreeModel) tree.getModel()).nodeStructureChanged(node);
	}
}
 

/**
 * Invoked whenever a node in the tree is about to be expanded.
 */
public void treeWillExpand(TreeExpansionEvent event) throws ExpandVetoException {
    if (inspectorWindow.isLocked()) {
        if (dir.getDocument().getProgressListener() != null)
            dir.getDocument().getProgressListener().setUserCancelled(true);
        throw new ExpandVetoException(event);
    }

    final TreePath path = event.getPath();
    final NodeBase node = (NodeBase) path.getLastPathComponent();
    if (node.getChildCount() > 0) { // has already been expanded
        if (node.isCompleted())
            return;
        else {
            int result = JOptionPane.showConfirmDialog(inspectorWindow.getFrame(), "List of children incomplete, re-fetch?", "Re-fetch", JOptionPane.YES_NO_CANCEL_OPTION);
            if (result == JOptionPane.NO_OPTION)
                return;
            else if (result == JOptionPane.CANCEL_OPTION)
                throw new ExpandVetoException(event);
            else // remove all children to trigger re-download
                node.removeAllChildren();
        }
    }

    if (node instanceof TopLevelNode) {
        inspectorWindow.addChildren((TopLevelNode) node);
    } else if (node instanceof ReadHeadLineNode) {
        inspectorWindow.addChildren((ReadHeadLineNode) node, path.getPathComponent(1).toString());
    }
    if (node instanceof ReadDataHeadLineNode) {
        inspectorWindow.addChildren((ReadDataHeadLineNode) node);
    } else if (node instanceof MatchHeadLineNode) {
        inspectorWindow.addChildren((MatchHeadLineNode) node);
    }
}
 

@Override
public void treeWillExpand(TreeExpansionEvent event)
throws ExpandVetoException {
    // prepare wait cursor and optionally show it
    TreePath path = event.getPath();
    prepareWaitCursor(DragDropUtilities.secureFindNode(path.getLastPathComponent()));
}
 

public void treeWillExpand(TreeExpansionEvent e) {
  TreePath path = e.getPath();
  set(path, false);
}
 

@Override
public void treeExpanded(TreeExpansionEvent event) {
    TreePath path = event.getPath();
    checkIfWeShouldScrollToCurrentThread(path);
    refreshView();
}
 

public void treeExpanded(TreeExpansionEvent tee) {
	TreePath path = tee.getPath();
	//hs_expanded_paths.add(path);
	updateInDatabase(path);
	//Utils.log2("expanded " + path);
}
 

/** Translates tree expansion event into an appropriate TableModelEvent
 * indicating the number of rows added/removed at the appropriate index */
private TableModelEvent translateEvent (TreeExpansionEvent e, boolean expand) {
    //PENDING:  This code should be profiled - the descendent paths search
    //is not cheap, and it might be less expensive (at least if the table
    //does not have expensive painting logic) to simply fire a generic
    //"something changed" table model event and be done with it.
    
    TreePath path = e.getPath();
    
    //Add one because it is a child of the row.
    int firstRow = getLayout().getRowForPath(path) + 1;
    if (firstRow == -1) {
        //This does not mean nothing happened, it may just be that we are
        //a large model tree, and the FixedHeightLayoutCache says the
        //change happened in a row that is not showing.
        
        //TODO:  Just to make the table scrollbar adjust itself appropriately,
        //we may want to look up the number of children in the model and
        //fire an event that says that that many rows were added.  Waiting
        //to see if anybody actually will use this (i.e. fires changes in
        //offscreen nodes as a normal part of usage
        return null;
    }
    
    //Get all the expanded descendants of the path that was expanded/collapsed
    TreePath[] paths = getTreePathSupport().getExpandedDescendants(path);
    
    //Start with the number of children of whatever was expanded/collapsed
    int count = getTreeModel().getChildCount(path.getLastPathComponent());
    
    if (count == 0) {
        return null;
    }
    
    //Iterate any of the expanded children, adding in their child counts
    for (int i=0; i < paths.length; i++) {
        count += getTreeModel().getChildCount(paths[i].getLastPathComponent());
    }
    
    //Now we can calculate the last row affected for real
    int lastRow = firstRow + count -1;
    
    //Construct a table model event reflecting this data
    TableModelEvent result = new TableModelEvent (getModel(), firstRow, lastRow, 
        TableModelEvent.ALL_COLUMNS, expand ? TableModelEvent.INSERT : 
        TableModelEvent.DELETE);
        
    return result;
}