javax.swing.tree.TreePath#equals ( )源码实例Demo

/**
 *
 *
 * @param path1
 * @param path2
 *
 * @return
 */
public static boolean isDescendant(TreePath path1, TreePath path2) {
	int count1 = path1.getPathCount();
	int count2 = path2.getPathCount();

	if (count1 <= count2) {
		return false;
	}

	while (count1 != count2) {
		path1 = path1.getParentPath();

		count1--;
	}

	return path1.equals(path2);
}
 

/** Verifies the actual is within one of the expected */
private void assertCloseEnough(TreePath expected, TreePath actual) {

	if (actual == null) {
		fail("No actual TreePath found");
	}

	if (expected.equals(actual)) {
		return; // good
	}

	// Unusual Code: we add some 'fudge' to the viewable tree rows (1 in the top and 
	//               bottom direction).  So, the actual path visible may be off by that 
	//               much.
	int fudge = 2; // 1 in both directions
	int expectedRow = gTree.getRowForPath(expected);
	if (rowNumberIsWithin(expected, actual, fudge)) {
		return; // good enough
	}

	int actualRow = gTree.getRowForPath(actual);
	fail("Tree paths do not match - expected row " + expectedRow + "; actual row " + actualRow);
}
 

String[] getSelectedCategoryPath() {
	TreePath currentPath = scriptCategoryTree.getSelectionPath();

	String[] currentCategory = null;

	if (currentPath != null) {
		if (currentPath.equals(previousPath)) {
			return previousCategory;
		}
		if (currentPath.getPathCount() > 1) {
			GTreeNode node = (GTreeNode) currentPath.getLastPathComponent();
			currentCategory = getCategoryPath(node);
		}
	}

	previousPath = currentPath;
	previousCategory = currentCategory;

	return currentCategory;
}
 

/**
 * For a multi-selection case, verifies that a selection
 * from the node's level is valid.
 * Returns true if (1) either the paths of all children of node
 * are selected, or if (2) none of the paths of all children of node
 * are selected.
 * Returns false if not all of the children of node are selected
 */
private boolean validPathSelection(ProgramNode node, TreePath[] selectedPaths) {

	int nchild = node.getChildCount();
	int numberSelected = 0;

	for (int i = 0; i < nchild; i++) {
		ProgramNode child = (ProgramNode) node.getChildAt(i);
		TreePath childPath = child.getTreePath();

		// see if childPath is in selected list
		for (TreePath element : selectedPaths) {
			if (childPath.equals(element)) {
				++numberSelected;
				break;
			}
		}
	}
	if (numberSelected == 0 || numberSelected == nchild) {
		return true;
	}
	return false;
}
 

/** Configures a tree cell renderer and sets up sizing and the 
 * backing image from it */
public boolean configure (Object nd, JScrollPane tv, JTree tree, TreePath path, int row) {
    boolean sameVn = setLastRendereredObject(nd);
    boolean sameComp = setLastRenderedScrollPane (tv);
    Component renderer = null;
    bg = tree.getBackground();
    boolean sel = tree.isSelectionEmpty() ? false :
        tree.getSelectionModel().isPathSelected(path);
    boolean exp = tree.isExpanded(path);
    boolean leaf = !exp && tree.getModel().isLeaf(nd);
    boolean lead = path.equals(tree.getSelectionModel().getLeadSelectionPath());
    renderer = tree.getCellRenderer().getTreeCellRendererComponent(tree, nd, sel, exp, leaf, row, lead);
    if (renderer != null) {
        setComponent (renderer, tree);
    }
    return true;
}
 

@Override
public void actionPerformed( final ActionEvent event ) {
 // Max expand depth for game events and tracker events
 final int maxDepth = Env.APP_SETTINGS.get( Settings.RAW_TREE_EXPAND_DEPTH ) - 1;
 
 tree.expandRow( 0 );
 for ( int i = 0; i < root.getChildCount(); i++ ) {
  final TreePath tp = new TreePath(
          ( (DefaultMutableTreeNode) root.getChildAt( i ) ).getPath() );
  if ( tp.equals( gameEventsTreePath ) || tp.equals( trackerEventsTreePath ) ) {
   if ( maxDepth >= 0 )
    tree.expandPathRecursive( tp, maxDepth );
  } else
   tree.expandPathRecursive( tp );
 }
}
 

private void checkSelectAndPopUp(MouseEvent evt)
{
   if (evt.isPopupTrigger())
   {
      // If the user wants to select for Right mouse clicks then change the selection before popup
     // appears
      if (_session.getApplication().getSquirrelPreferences().getSelectOnRightMouseClick()) {
         TreePath path = ObjectTree.this.getPathForLocation(evt.getX(), evt.getY());
         boolean alreadySelected = false;
         TreePath[] selectedPaths = ObjectTree.this.getSelectionPaths();
         if (selectedPaths != null) {
            for (TreePath selectedPath : selectedPaths) {
               if (path != null && path.equals(selectedPath)) {
                  alreadySelected = true;
                  break;
               }
            }
         }
         if (!alreadySelected) {
            ObjectTree.this.setSelectionPath(path);
         }
      }
      showPopup(evt.getX(), evt.getY());
   }
}
 

public void updateCheckBoxStates() {
    final TreePath[] selectionPaths = checkBoxTree.getCheckBoxTreeSelectionModel().getSelectionPaths();
    if (selectionPaths == null || selectionPaths.length == 0) {
        selectAllCheckBox.setSelected(false);
        selectAllCheckBox.setEnabled(true);
        selectAllCheckBox.updateUI();
        selectNoneCheckBox.setSelected(true);
        selectNoneCheckBox.setEnabled(false);
        selectNoneCheckBox.updateUI();
    } else {
        final TreePath rootPath = new TreePath(checkBoxTree.getModel().getRoot());
        boolean allSelected = false;
        for (TreePath selectionPath : selectionPaths) {
            if (selectionPath.equals(rootPath)) {
                allSelected = true;
            }
            selectAllCheckBox.setSelected(allSelected);
            selectAllCheckBox.setEnabled(!allSelected);
            selectAllCheckBox.updateUI();
            selectNoneCheckBox.setSelected(false);
            selectNoneCheckBox.setEnabled(true);
            selectNoneCheckBox.updateUI();
        }
    }
}
 

@Override
public boolean onDoubleClick(MouseEvent e) {
  final TreePath clickPath = myTree.getUI() instanceof WideSelectionTreeUI ? myTree.getClosestPathForLocation(e.getX(), e.getY())
                                                                           : myTree.getPathForLocation(e.getX(), e.getY());
  if (clickPath == null) return false;

  final DataContext dataContext = DataManager.getInstance().getDataContext(myTree);
  final Project project = dataContext.getData(CommonDataKeys.PROJECT);
  if (project == null) return false;

  final TreePath selectionPath = myTree.getSelectionPath();
  if (selectionPath == null || !clickPath.equals(selectionPath)) return false;
  final Object lastPathComponent = selectionPath.getLastPathComponent();
  if (((TreeNode)lastPathComponent).isLeaf() || !expandOnDoubleClick(((TreeNode)lastPathComponent))) {
    //Node expansion for non-leafs has a higher priority
    processDoubleClick(e, dataContext, (TreeNode) lastPathComponent);
    return true;
  }
  return false;
}
 

/**
 * Validate the selection for a case of the multi-selection
 * for either the popup menu or the plugin action.
 * @return true if the root node is not selected, or
 * a node and all of its children are selected or only
 * a parent node is selected; return false if this is not
 * the case.
 */
private boolean validMultiSelection() {

	TreePath[] paths = tree.getSelectionPaths();
	if (paths == null) {
		return false;
	}
	TreePath rootPath = root.getTreePath();
	for (TreePath element : paths) {
		if (element.equals(rootPath)) {
			return false;
		}
	}

	for (TreePath path : paths) {

		ProgramNode node = (ProgramNode) path.getLastPathComponent();
		// if the node allows children, then verify that
		// either (1) only the parent is selected, or
		// (2) all children are selected
		if (node.getAllowsChildren() && !validPathSelection(node, paths)) {
			return false;
		}
	}

	return true;
}
 

public static boolean findString(ProfilerTreeTable treeTable, String text, boolean matchCase, boolean next, TreeHelper helper) {
    treeTable.putClientProperty(LAST_FIND_TEXT, text);
    treeTable.putClientProperty(LAST_FIND_MATCH_CASE, matchCase);
    
    if (!matchCase) text = text.toLowerCase();
    
    int mainColumn = treeTable.convertColumnIndexToView(treeTable.getMainColumn());
    
    TreePath selectedPath = treeTable.getSelectionPath();
    if (selectedPath == null) selectedPath = treeTable.getRootPath();
    boolean firstPath = true;
    TreePath startPath = null;
    
    int nodeType = helper == null ? TreeHelper.NODE_SEARCH_DOWN : helper.getNodeType(selectedPath);
    
    do {
        selectedPath = next ? treeTable.getNextPath(selectedPath, TreeHelper.isDown(nodeType)) :
                              treeTable.getPreviousPath(selectedPath, TreeHelper.isDown(nodeType));
        TreeNode node = (TreeNode)selectedPath.getLastPathComponent();
        
        if (helper != null) nodeType = helper.getNodeType(node);
        
        if (TreeHelper.isSearch(nodeType)) {
            String nodeValue = treeTable.getStringValue(node, mainColumn);
            if (!matchCase) nodeValue = nodeValue.toLowerCase();
            if (nodeValue.contains(text)) {
                treeTable.selectPath(selectedPath, true);
                return true;
            }
        }
        
        if (startPath == null) startPath = selectedPath;
        else if (firstPath) firstPath = false;
    } while (firstPath || !selectedPath.equals(startPath));
    
    ProfilerDialogs.displayInfo(MSG_NOTFOUND, ACTION_FIND, null);
    return false;
}
 

private boolean isSelectionKept (TreePath selPath) {
    if (curSelPath != null) {
        TreePath oldSel = curSelPath.get();
        if (oldSel != null && oldSel.equals(selPath)) {
            return true;
        }
    }
    return false;
}
 

private boolean isValidDoubleClickPath(MouseEvent event) {

        TreePath locationPath = tree.getPathForLocation(event.getX(), event.getY());
        TreePath selectionPath = tree.getSelectionPath();
        if (selectionPath == null || locationPath == null || !selectionPath.equals(locationPath)) {
            return false;
        }
        ClassTreeNode lastPathComponent = (ClassTreeNode)selectionPath.getLastPathComponent();
        return !lastPathComponent.isPackageNode();
    }
 

@Override
public void actionPerformed( final ActionEvent event ) {
 final int maxDepth = Env.APP_SETTINGS.get( Settings.RAW_TREE_EXPAND_DEPTH ) - 1;
 
 final TreePath[] selectionPaths = tree.getSelectionPaths();
 for ( final TreePath tp : selectionPaths ) {
  if ( tp.equals( gameEventsTreePath ) || tp.equals( trackerEventsTreePath ) ) {
   if ( maxDepth >= 0 )
    tree.expandPathRecursive( tp, maxDepth );
  } else
   tree.expandPathRecursive( tp );
 }
}
 

public static boolean findString(ProfilerTreeTable treeTable, String text, boolean matchCase, boolean next, TreeHelper helper) {
    treeTable.putClientProperty(LAST_FIND_TEXT, text);
    treeTable.putClientProperty(LAST_FIND_MATCH_CASE, matchCase);
    
    if (!matchCase) text = text.toLowerCase();
    
    int mainColumn = treeTable.convertColumnIndexToView(treeTable.getMainColumn());
    
    TreePath selectedPath = treeTable.getSelectionPath();
    if (selectedPath == null) selectedPath = treeTable.getRootPath();
    boolean firstPath = true;
    TreePath startPath = null;
    
    int nodeType = helper == null ? TreeHelper.NODE_SEARCH_DOWN : helper.getNodeType(selectedPath);
    
    do {
        selectedPath = next ? treeTable.getNextPath(selectedPath, TreeHelper.isDown(nodeType)) :
                              treeTable.getPreviousPath(selectedPath, TreeHelper.isDown(nodeType));
        TreeNode node = (TreeNode)selectedPath.getLastPathComponent();
        
        if (helper != null) nodeType = helper.getNodeType(node);
        
        if (TreeHelper.isSearch(nodeType)) {
            String nodeValue = treeTable.getStringValue(node, mainColumn);
            if (!matchCase) nodeValue = nodeValue.toLowerCase();
            if (nodeValue.contains(text)) {
                treeTable.selectPath(selectedPath, true);
                return true;
            }
        }
        
        if (startPath == null) startPath = selectedPath;
        else if (firstPath) firstPath = false;
    } while (firstPath || !selectedPath.equals(startPath));
    
    ProfilerDialogs.displayInfo(MSG_NOTFOUND, ACTION_FIND, null);
    return false;
}
 

private void selectTargetInTree(Wrapper dbgElm) {
    TestElement wrpElm = (TestElement) dbgElm.getWrappedElement();
    TreePath treePath = getTreePathFor(wrpElm);
    if (treePath == null) {
        // case for wrapped controllers
        treePath = getTreePathFor(dbgElm);
    }

    if (treePath == null) {
        log.debug("Did not find tree path for element");
    } else {
        if (treePath.equals(tree.getSelectionPath())) {
            tree.setSelectionPath(treePath.getParentPath());
        }
        tree.setSelectionPath(treePath);
    }

    Sampler sampler = debugger.getCurrentSampler();
    if (sampler != null) {
        TreePath samplerPath = getTreePathFor(sampler);
        if (samplerPath != null) {
            log.debug("Expanding: " + samplerPath);
            tree.expandPath(samplerPath.getParentPath());
        }
    }
    
    tree.repaint();
}
 

private static boolean isDescendant(TreePath path1, final TreePath path2) {
  int count1 = path1.getPathCount();
  final int count2 = path2.getPathCount();
  if (count1 <= count2) {
    return false;
  }
  while (count1 != count2) {
    path1 = path1.getParentPath();
    count1--;
  }
  return path1.equals(path2);
}
 

@Override
@SuppressWarnings("unchecked")
public int compare(RowMapping rm1, RowMapping rm2) {
    int index1 = rm1.getModelRowIndex();
    int index2 = rm2.getModelRowIndex();
    if (index1 == index2) {
        return 0;
    }
    TreePath tp1 = getLayoutCache().getPathForRow(index1);
    TreePath tp2 = getLayoutCache().getPathForRow(index2);
    if (tp1 == null) {
        if (tp2 == null) {
            return 0;
        } else {
            return -1;
        }
    } else if (tp2 == null) {
        return 1;
    }
    if (tp1.isDescendant(tp2)) {
        return -1;
    }
    if (tp2.isDescendant(tp1)) {
        return 1;
    }
    boolean tp1Changed = false;
    boolean tp2Changed = false;
    TreePath parent1 = tp1.getParentPath();
    TreePath parent2 = tp2.getParentPath();
    if (parent1 != null && parent2 != null && parent1.equals(parent2) &&
            getOutlineModel().isLeaf(tp1.getLastPathComponent()) &&
            getOutlineModel().isLeaf(tp2.getLastPathComponent())) {
        return ascending ? super.compare(rm1, rm2) : - super.compare(rm1, rm2);
    }
    while (tp1.getPathCount() < tp2.getPathCount()) {
        tp2 = tp2.getParentPath();
        tp2Changed = true;
    }
    while (tp1.getPathCount() > tp2.getPathCount()) {
        tp1 = tp1.getParentPath();
        tp1Changed = true;
    }
    parent1 = tp1.getParentPath();
    parent2 = tp2.getParentPath();
    while (parent1 != null && parent2 != null && !parent1.equals(parent2)) {
        tp1 = parent1;
        tp2 = parent2;
        parent1 = tp1.getParentPath();
        parent2 = tp2.getParentPath();
        tp1Changed = true;
        tp2Changed = true;
    }
    if (tp1Changed || tp2Changed) {
        return compare(tempSortMap.get(tp1), tempSortMap.get(tp2));
    } else {
        return ascending ? super.compare(rm1, rm2) : - super.compare(rm1, rm2);
    }
}
 

/**
 * Convenience method to test whether drop location is valid
 *
 * @param destination
 *            The destination path
 * @param dropper
 *            The path for the node to be dropped
 * @param type
 *            object data type
 * @return null if no problems, otherwise an explanation
 */
private String testDropTarget(TreePath destination, TreePath dropper, byte type) {

	boolean destinationPathIsNull = destination == null;
	if (destinationPathIsNull) {
		return "Invalid drop location.";
	}

	DBBrowserNode node = (DBBrowserNode) destination.getLastPathComponent();
	if (!node.getAllowsChildren()) {
		return "This node does not allow children";
	}

	if (destination.equals(dropper)) {
		return "Destination cannot be same as source";
	}

	if (dropper.isDescendant(destination)) {
		return "Destination node cannot be a descendant.";
	}

	if (dropper.getParentPath().equals(destination)) {
		return "Destination node cannot be a parent.";
	}

	if ((type == DBObject.QUERIES) || (type == DBObject.FOLDER_QUERY)) {
		if ((node.getDBObject().getType() != DBObject.FOLDER_QUERY)
				&& (node.getDBObject().getType() != DBObject.QUERIES_GROUP)) {
			return "No query folder";
		}
	} else if ((type == DBObject.REPORTS) || (type == DBObject.FOLDER_REPORT)) {
		if ((node.getDBObject().getType() != DBObject.FOLDER_REPORT)
				&& (node.getDBObject().getType() != DBObject.REPORTS_GROUP)) {
			return "No report folder";
		}
	} else if ((type == DBObject.CHARTS) || (type == DBObject.FOLDER_CHART)) {
		if ((node.getDBObject().getType() != DBObject.FOLDER_CHART)
				&& (node.getDBObject().getType() != DBObject.CHARTS_GROUP)) {
			return "No chart folder";
		}
	} else {
		return "No folder";
	}

	return null;
}
 

@Override
public boolean isDropRedundant(@Nonnull TreePath source, @Nonnull TreePath target) {
  return target.equals(source.getParentPath()) || MoveHandler.isMoveRedundant(getPsiElement(source), getPsiElement(target));
}