Attachment 3920 Details for Bug 4434 – test case which was causing the stack trace

test case which was causing the stack trace

PR4434BIG.java (text/plain), 3.11 KB, created by Christophe Cornu

on 2003-03-07 16:33:17 EST

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Creator: Christophe Cornu

Created: 2003-03-07 16:33:17 EST

Size: 3.11 KB

patch

obsolete

>import org.eclipse.swt.*;
>import org.eclipse.swt.widgets.*;
>import org.eclipse.swt.graphics.*;
>import org.eclipse.swt.layout.*;
>import org.eclipse.swt.events.*;
>
>import java.util.*;
>
>public class PR4434BIG implements TreeListener {
>
>static private final String falseNodeText = "falseNode";
>static private final int treeDepth = 3;
>static private final int childrenPerNode = 2;
>
>public static void main(String[] args) {
>	Display display = new Display();
>	Shell shell = new Shell();
>	shell.setText("GPF Example");
>	shell.setBounds(0, 0, 500, 400);
>	shell.setBackground(new Color(shell.getDisplay(), 255, 255, 255));
>
>	shell.setLayout(new FillLayout());
>	PR4434BIG pr = new PR4434BIG();
>	final Tree tree = new Tree(shell, SWT.NONE);
>	tree.addTreeListener(pr);
>
>	TreeNode root = TreeNode.createTree(treeDepth, childrenPerNode);
>	Vector children = root.getChildren();
>	for (int i = 0; i < children.size(); i ++) {
>		TreeNode next = (TreeNode) children.elementAt(i);
>		TreeItem item = new TreeItem(tree, 0);
>		item.setData(next);
>		item.setText(next.getName());
>		
>		if (next.getChildren().size() > 0) {
>			TreeItem fakeItem = new TreeItem (item, SWT.NULL);
>			fakeItem.setText(falseNodeText);
>		}
>	}
>
>	final Button runTestButton = new Button(shell, SWT.PUSH);
>	runTestButton.setText("Run test.");
>	runTestButton.addSelectionListener(new SelectionAdapter() {
>		public void widgetSelected(SelectionEvent e) {
>			TreeItem testItem = null;
>			TreeItem[] items = tree.getItems();
>			for (int i = 0; i < treeDepth; i++) {
>				testItem = items[childrenPerNode - 1];
>		
>				if (!testItem.getExpanded()) {
>					expandTree(testItem);
>				}
>		
>				items = testItem.getItems();		
>			}
>			
>
>			TreeItem[] items2 = new TreeItem[1];
>			items2[0] = testItem;
>			tree.setSelection(items2);
>			if (!testItem.isDisposed()) tree.showItem(testItem);
>			runTestButton.setText("Test Successful.");		
>		}
>	});
>	
>	shell.open ();
>	while (!shell.isDisposed ()) {
>		if (!display.readAndDispatch ()) display.sleep ();
>	}
>}
>
>
>public static void expandTree (TreeItem item) {
>	TreeNode node = (TreeNode) item.getData();
>	Vector children = node.getChildren();
>	
>	for (int i = 0; i < children.size(); i++) {
>		TreeNode next = (TreeNode) children.elementAt(i);
>		TreeItem nextItem = new TreeItem(item, SWT.NULL);
>		nextItem.setData(next);
>		nextItem.setText(next.getName());
>		
>		if (next.getChildren().size() > 0) {
>			TreeItem dummyItem = new TreeItem(nextItem, SWT.NULL);
>			dummyItem.setText(falseNodeText);
>		}
>	}
>}
>
>public void treeCollapsed(TreeEvent event) {
>}
>
>/**
> * 
> */
>public void treeExpanded(TreeEvent event) {
>	TreeItem item = (TreeItem) event.item;
>	// If the node hasn't been viewed yet it has a dummy node
>	// to allows expansion. Remove the dummy treeItem then 
>	// populate the tree
>	Item[] items = item.getItems();
>	Item item2 = items[0];
>	String text = item2.getText();
>	if (text.equals(falseNodeText)) {
>		// dispose of dummy items
>		TreeItem [] items2 = item.getItems ();
>		for (int i=0; i<items2.length; i++) items2 [i].dispose ();
>		
>		// expand the tree item
>		expandTree (item);
>	} 
>}
>
>}

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Attachments on bug 4434: 3920 | 3921