两个GMF常用方法

两个GMF常用方法
  1.根据领域模型element,在模型所在的编辑器上选中图元 

     public static void selectDiagramEditPart(DiagramEditPart diagramPart, 
    EObject element) { 
    if (diagramPart == null || element == null) 
    return; 
    EditPartViewer partViewer = diagramPart.getViewer(); 
    Map<?,?> map = partViewer.getEditPartRegistry(); 
    for (Entry<?, ?> entry : map.entrySet()) { 
    Object key = entry.getKey(); 
    if (!(key instanceof View)) { 
    continue; 
    } 
    View view = (View) key; 
    EObject tempElement = view.getElement(); 
                        //过滤非领域模型 
    if (!(element instanceof **Node || tempElement instanceof **Link)) { 
    return ; 
    } 
    if (element.equals(tempElement)) { 
    Object value = entry.getValue(); 
    if (!(value instanceof EditPart)) { 
    continue; 
    } 
    EditPart tempEditPart = (EditPart) value; 
    EditPart parent = tempEditPart.getParent(); 
    if (parent instanceof **DiagramEditor) { 
    partViewer.select(tempEditPart); 
    partViewer.reveal(tempEditPart); 
    } 
    } 
    } 
    } 
    
    2.根据领域模型找到模型所在编辑器的EditPart 
    public static EditPart getEditPart(DiagramEditPart diagramPart,EObject element){ 
            if (diagramPart == null || element == null) 
                return null; 
            EditPartViewer partViewer = diagramPart.getViewer(); 
            Map<?,?> map = partViewer.getEditPartRegistry(); 
            for (Entry<?, ?> entry : map.entrySet()) { 
                Object key = entry.getKey(); 
                if (!(key instanceof View)) { 
                    continue; 
                } 
                View view = (View) key; 
                EObject tempElement = view.getElement(); 
                //过滤非领域模型 
                if (!(tempElement instanceof **Node || tempElement instanceof **Link) { 
                    continue; 
                } 
                if (element.equals(tempElement)) { 
                    Object value = entry.getValue(); 
                    //过滤EditPart 
                    if (value instanceof **EditPart) { 
                        return (EditPart) value; 
                    } 
                } 
            } 
            return null; 
    }