Bug 176161 styles cannot be sortet/ordered in the outline view
1) create a library 2) add a theme 3) add some styles to the theme ==> the styles cannot be sortet/ordered in the outline view ==> a drag'n'drop ordering of sytles would be very nice (or maybe an alphabetical sorting)
UI/org.eclipse.birt.report.designer.ui.views/src/org/eclipse/birt/report/designer/internal/ui/views/outline/providers/ThemeNodeProvider.java
import org.eclipse.birt.report.designer.internal.ui.views.actions.ImportCSSStyleAction;
import org.eclipse.birt.report.designer.internal.ui.views.actions.InsertAction;
import org.eclipse.birt.report.designer.internal.ui.views.actions.ReloadCssStyleAction;
import org.eclipse.birt.report.designer.internal.ui.views.actions.UseCssStyleAction;
import org.eclipse.birt.report.designer.nls.Messages;
import org.eclipse.birt.report.designer.ui.newelement.DesignElementFactory;
import org.eclipse.birt.report.designer.ui.views.ProviderFactory;
import org.eclipse.birt.report.model.api.DesignElementHandle;
import org.eclipse.birt.report.model.api.LibraryHandle;
import org.eclipse.birt.report.model.api.StyleHandle;
import org.eclipse.birt.report.model.api.ThemeHandle;
import org.eclipse.birt.report.model.api.css.CssStyleSheetHandle;
import org.eclipse.birt.report.model.api.elements.ReportDesignConstants;
import org.eclipse.gef.Request;
import org.eclipse.jface.action.IMenuManager;
import org.eclipse.jface.action.Separator;
import org.eclipse.jface.viewers.TreeViewer;
import org.eclipse.ui.IWorkbenchActionConstants;
/**
 * Deals with theme node
 * 
 */
public class ThemeNodeProvider extends DefaultNodeProvider
{
	/**
	 * Creates the context menu for the given object.
	 * 
	 * @param object
	 *            the object
	 * @param menu