Bug 340297

Description Priyadarshini 2011-03-17 06:12:55 EDT

Build Identifier: 3.5.0

When multiple tree items present under different parent nodes are selected, collapsing a parent causes loss of selection of tree items under another unrelated parent.

Reproducible: Always

Steps to Reproduce:
- Run the snippet below
- Multi-select item G, item F and then item D in given order.
- Collapse item C by clicking on its [-] box
- Expected result:
  Since item G and item F are not a descendant of item C, they should stay selected
- Actual result:
  Item F is deselected

--- Code Snippet ---
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Tree;
import org.eclipse.swt.widgets.TreeItem;

public class TreeSelectionTest {
  public static void main(String[] args) {
    Display display = new Display();

    Shell shell = new Shell(display);
    shell.setText("" + SWT.getVersion());
    shell.setLayout(new FillLayout());

    Tree tree = new Tree(shell, SWT.MULTI);

    TreeItem itemA = new TreeItem(tree, SWT.NONE);
    itemA.setText("Item A");

    TreeItem itemB = new TreeItem(itemA, SWT.NONE);
    itemB.setText("Item B");

    TreeItem itemC = new TreeItem(itemB, SWT.NONE);
    itemC.setText("Item C");

    TreeItem itemD = new TreeItem(itemC, SWT.NONE);
    itemD.setText("Item D");

    TreeItem itemE = new TreeItem(itemB, SWT.NONE);
    itemE.setText("Item E");

    TreeItem itemF = new TreeItem(itemE, SWT.NONE);
    itemF.setText("Item F");

    TreeItem itemG = new TreeItem(itemE, SWT.NONE);
    itemG.setText("Item G");

    itemA.setExpanded(true);
    itemB.setExpanded(true);
    itemC.setExpanded(true);
    itemE.setExpanded(true);

    shell.setSize(200, 200);
    shell.open();

    while (!shell.isDisposed()) {
      if (!display.readAndDispatch())
    {
        display.sleep();
    }
    }

    display.dispose();
  }
}