import org.eclipse.jface.action.ControlContribution; //导入依赖的package包/类
private void addResourcesArea(Composite composite) {  
	ResourceSelectionTree.IToolbarControlCreator toolbarControlCreator = new ResourceSelectionTree.IToolbarControlCreator() {
  public void createToolbarControls(ToolBarManager toolbarManager) {
    toolbarManager.add(new ControlContribution("stealLock") {
      protected Control createControl(Composite parent) {
        stealButton = new Button(parent, SWT.CHECK);
        stealButton.setText(Policy.bind("LockDialog.stealLock")); //$NON-NLS-1$		
        return stealButton;
      }
    });
  }
  public int getControlCount() {
    return 1;
  }
};
	resourceSelectionTree = new ResourceSelectionTree(composite, SWT.NONE, "These files will be locked:", files, new HashMap(), null, false, toolbarControlCreator, null); //$NON-NLS-1$    	
	resourceSelectionTree.setShowRemoveFromViewAction(false);
}
 

import org.eclipse.jface.action.ControlContribution; //导入依赖的package包/类
private void fillLocalToolBar(IToolBarManager manager) {
  manager.add(new ControlContribution("connection status") {
    @Override
    protected Control createControl(Composite parent) {
      connectionLabel = new Label(parent, SWT.NONE);
      connectionLabel.setImage(redIcon);
      return connectionLabel;
    }
  });
  manager.add(autoReconnectAction);
  manager.add(new Separator());
  manager.add(pauseAction);
  manager.add(discardAction);
  manager.add(showWarningAction);
  manager.add(showPrintAction);
  manager.add(showTimestampAction);
  manager.add(new Separator());
  manager.add(clearAction);
}
 

import org.eclipse.jface.action.ControlContribution; //导入依赖的package包/类
@Override
protected void contributeToToolBar(IToolBarManager toolBarManager) {
    super.contributeToToolBar(toolBarManager);

    ControlContribution toolBarCompositeContribution = new ControlContribution(getToolBarCompositeContributionId()) {

        @Override
        protected Control createControl(Composite parent) {

            FormToolkit toolkit = getManagedForm().getToolkit();
            Composite toolBarComposite = toolkit.createComposite(parent);
            FormLayout toolBarCompositeLayout = new FormLayout();
            toolBarCompositeLayout.marginTop = 0;
            toolBarCompositeLayout.marginBottom = 0;
            toolBarCompositeLayout.marginLeft = 4;
            toolBarCompositeLayout.marginRight = 4;
            toolBarCompositeLayout.spacing = 4;
            toolBarComposite.setLayout(toolBarCompositeLayout);

            _ToolBarLabel = toolkit.createLabel(toolBarComposite, "", SWT.RIGHT);

            FormData toolBarLabelFormData = new FormData();
            toolBarLabelFormData.top = new FormAttachment(0, 0);
            toolBarLabelFormData.left = new FormAttachment(0, 0);
            toolBarLabelFormData.right = new FormAttachment(100, 0);

            // HACK: I really struggled to get this label to show up.
            toolBarLabelFormData.width = 100;

            _ToolBarLabel.setLayoutData(toolBarLabelFormData);

            return toolBarComposite;
        }
    };

    toolBarManager.add(toolBarCompositeContribution);

}