Java RCP工具栏损坏了

Question

工具栏偏离预期结果，第一个按钮应该位于最后一个按钮..按钮的其余部分应该显示在菜单栏下方，这是在更改Eclipse版本时发生的，当前我正在使用 蚀月神4.4.2 这条线似乎无济于事

IToolBarManager toolbar = new ToolBarManager(SWT.FLAT | SWT.LEFT);

在eclipse 3.7中，将调用openWorkbenchWindow（Workbench.class）之类的函数，并会触发restoreWorkbenchWindow并最终触发诸如rangingToolbar之类的函数

/*
 * (non-Javadoc) Method declared on IWorkbench.
 */
public IWorkbenchWindow openWorkbenchWindow(final String perspID,
        final IAdaptable input) throws WorkbenchException {
    // Run op in busy cursor.
    final Object[] result = new Object[1];
    BusyIndicator.showWhile(null, new Runnable() {
        public void run() {
            try {
                result[0] = busyOpenWorkbenchWindow(perspID, input);
            } catch (WorkbenchException e) {
                result[0] = e;
            }
        }
    });
    if (result[0] instanceof IWorkbenchWindow) {
        return (IWorkbenchWindow) result[0];
    } else if (result[0] instanceof WorkbenchException) {
        throw (WorkbenchException) result[0];
    } else {
        throw new WorkbenchException(
                WorkbenchMessages.Abnormal_Workbench_Conditi);
    }
}

/*
 * (non-Javadoc)
 * 
 * @see org.eclipse.ui.IWorkbench#restoreWorkbenchWindow(org.eclipse.ui.IMemento)
 */
IWorkbenchWindow restoreWorkbenchWindow(IMemento memento)
        throws WorkbenchException {
    WorkbenchWindow newWindow = newWorkbenchWindow();
    newWindow.create();

    windowManager.add(newWindow);

    // whether the window was opened
    boolean opened = false;

    try {
        newWindow.restoreState(memento, null);
        newWindow.fireWindowRestored();
        newWindow.open();
        opened = true;
    } finally {
        if (!opened) {
            newWindow.close();
        }
    }

    return newWindow;
}


 void updatePerspectiveBar() {
    // Update each item as the text may have to be shortened.
    IContributionItem[] items = perspectiveBar.getItems();
    for (int i = 0; i < items.length; i++) {
        items[i].update();
    }
    // make sure the selected item is visible
    perspectiveBar.arrangeToolbar();
    setCoolItemSize(coolItem);
    perspectiveBar.getControl().redraw();

    if (getControl() != null)
        getControl().pack(true);
}

但是，eclipse 4.4.2不再包含上述功能 功能内容有所不同，并且不再支持restoreWorkbenchWindow。

/*
 * (non-Javadoc) Method declared on IWorkbench.
 */
@Override
public IWorkbenchWindow openWorkbenchWindow(String perspectiveId, IAdaptable input)
        throws WorkbenchException {
    IPerspectiveDescriptor descriptor = getPerspectiveRegistry().findPerspectiveWithId(
            perspectiveId);
    try {
        MWindow window = BasicFactoryImpl.eINSTANCE.createTrimmedWindow();
        return openWorkbenchWindow(input, descriptor, window, true);
    } catch (InjectionException e) {
        throw new WorkbenchException(e.getMessage(), e);
    }
}

public WorkbenchWindow openWorkbenchWindow(IAdaptable input, IPerspectiveDescriptor descriptor,
        MWindow window, boolean newWindow) {
    return (WorkbenchWindow) createWorkbenchWindow(input, descriptor, window, newWindow);
}

有什么建议或方法可以解决我面临的问题吗？谢谢。