Prevent an item from closing



/*
 * CTabFolder example snippet: prevent an item from closing
 *
 * For a list of all SWT example snippets see
 * http://dev.eclipse.org/viewcvs/index.cgi/%7Echeckout%7E/platform-swt-home/dev.html#snippets
 */
import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.CTabFolder;
import org.eclipse.swt.custom.CTabFolder2Adapter;
import org.eclipse.swt.custom.CTabFolderEvent;
import org.eclipse.swt.custom.CTabItem;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;

public class Snippet82 {

  public static void main(String[] args) {
    Display display = new Display();
    Shell shell = new Shell(display);
    shell.setLayout(new FillLayout());
    CTabFolder folder = new CTabFolder(shell, SWT.BORDER);
    for (int i = 0; i < 4; i++) {
      CTabItem item = new CTabItem(folder, SWT.CLOSE);
      item.setText("Item " + i);
      Text text = new Text(folder, SWT.MULTI);
      text.setText("Content for Item " + i);
      item.setControl(text);
    }

    final CTabItem specialItem = new CTabItem(folder, SWT.CLOSE);
    specialItem.setText("Don't Close Me");
    Text text = new Text(folder, SWT.MULTI);
    text.setText("This tab can never be closed");
    specialItem.setControl(text);

    folder.addCTabFolder2Listener(new CTabFolder2Adapter() {
      public void close(CTabFolderEvent event) {
        if (event.item.equals(specialItem)) {
          event.doit = false;
        }
      }
    });

    final CTabItem noCloseItem = new CTabItem(folder, SWT.NONE);
    noCloseItem.setText("No Close Button");
    Text text2 = new Text(folder, SWT.MULTI);
    text2.setText("This tab does not have a close button");
    noCloseItem.setControl(text2);

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

Related examples in the same category

1.	TabFolder Example
2.	Creates a tabbed display with a single tab
3.	Creates a tabbed display with four tabs and a few controls
4.	Demonstrates CTabFolder
5.	Tabbed Example
6.	SWT Tab Control
7.	Create a CTabFolder with min and max buttons, as well as close button and
8.	Prevent Tab from traversing out of a control
9.	Set the tab traversal order of children
10.	implement tab traversal (behave like a tab group)

Prevent an item from closing : Tab « SWT JFace Eclipse « Java

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