【Eclipse-plugin】在Eclipse的编辑器上，右键插件Action中怎么获得选中文本的颜色

    package cat.popup.actions;            import org.eclipse.jface.action.IAction;      import org.eclipse.jface.dialogs.MessageDialog;      import org.eclipse.jface.text.ITextSelection;      import org.eclipse.jface.viewers.ISelection;      import org.eclipse.swt.widgets.Shell;      import org.eclipse.ui.IActionDelegate;      import org.eclipse.ui.IObjectActionDelegate;      import org.eclipse.ui.IWorkbenchPart;            public class NewAction implements IObjectActionDelegate {                private Shell shell;                private IWorkbenchPart targetPart;                /**          * Constructor for Action1.          */          public NewAction() {              super();          }                /**          * @see IObjectActionDelegate#setActivePart(IAction, IWorkbenchPart)          */          public void setActivePart(IAction action, IWorkbenchPart targetPart) {              shell = targetPart.getSite().getShell();              this.targetPart = targetPart;          }                /**          * @see IActionDelegate#run(IAction)          */          public void run(IAction action) {              String title = targetPart.getTitle();              ISelection selection = targetPart.getSite().getSelectionProvider()                      .getSelection();              if (!(selection instanceof ITextSelection)) {                  return;              }                            ITextSelection textSelection = (ITextSelection) selection;              String text = textSelection.getText();              if (text == null || text.length() == 0) {                  return;              }              int endLine = textSelection.getEndLine();              int startLine = textSelection.getStartLine();              int offset = textSelection.getOffset();              System.out.println(text + "(title"+title+":" + startLine + ":" + endLine + ":"                      + offset + ")");              //这里怎么获得选中文本的颜色？如果选中了多个段，如何循环得到每段的颜色？              MessageDialog.openInformation(shell, "Cat", "New Action was executed.");          }                /**          * @see IActionDelegate#selectionChanged(IAction, ISelection)          */          public void selectionChanged(IAction action, ISelection selection) {          }            }  

<plugin>       <extension           point="org.eclipse.ui.popupMenus">        <objectContribution              objectClass="org.eclipse.core.resources.IResource" adaptable="true"              id="cat.contribution1">           <action                 label="test"                 class="cat.popup.actions.NewAction"                 menubarPath="additions"                 enablesFor="+"                 id="cat.newAction">           </action>        </objectContribution>     </extension>    </plugin>