插件项目如何创建outline？

[zxlbb]

GMF插件项目怎么建outline啊？就是几个模型之间有层次关系，让它们在outline中以树形结构排列？提供思路即可。
明天加100分。急，明天上午结贴。

[zhujiahill]

1.首先定义outline中的要排列模型的层次关系：在你的DiagramEditor中重写getOutlineViewEditPartFactory()方法，举个例子

public EditPartFactory getOutlineViewEditPartFactory() {
		return new EditPartFactory() {

			public EditPart createEditPart(EditPart context, Object model) {
                                //下面这几个if是按顺序执行的，就是说前一个if返回的值为后一个所用
                                //模型关系一层比一层小
				if (model instanceof Resource) {
                                        //这一层得到当前编辑区中所有模型的EditPart
					Resource resource = (Resource) model;
					String editorInputName = ((FileEditorInput) DMDiagramEditor.this.getEditorInput()).getName();
					editorInputName = editorInputName.substring(0, editorInputName.lastIndexOf("."));
					return new RootDiagramTreeEditPart(DMDiagramEditorUtil.getActiveDiagram(resource), resource,
							editorInputName);
				}

				if (model instanceof Diagram) {
                                        //底层模型（容器）
					return new DiagramContainerEditPart(model);

				}
				if (model instanceof Node) {
                                        //子模型，这样就能跟底层模型形成结构关系
					EObject obj = ((Node) model).getElement();
					if (obj instanceof Entity) {

						return new EntityTreeEditPart(model);

					} else if (obj instanceof jp.co.intramart.app.producer.db.dm.model.View) {

						return new ViewTreeEditPart(model);
					}
				}

				return null;
			}
		};
	}

//定义EditPart的例子
public class DiagramContainerEditPart extends TreeContainerEditPart {

	private static String lblLogicalDataModel = ResourceMessages.getString("OutLineLabel_LogicalDataModel");
	private static String lblPhycalDataModel = ResourceMessages.getString("OutLineLabel_PhysicalDataModel");

	public DiagramContainerEditPart(Object model) {
		super(model);
	}

	protected Image getImage() {//outline中节点的图形在这得到
		return FigureUtil.getImage(DMDiagramEditorPlugin.ID, "images/opration.gif");
	}

	protected List<Node> getModelChildren() {//得到该模型的子节点
		Object model = getModel();
		boolean isLogical = ModelUtil.isLogicalEditType();
		int cnt = 1;
		if (model instanceof Diagram) {

			List<Node> listAll = new ArrayList<Node>();
			SortedMap<String, Node> sortMapEntity = new TreeMap<String, Node>();
			SortedMap<String, Node> sortMapView = new TreeMap<String, Node>();
			// get sorted entity and view list
			for (Object child : ((Diagram) model).getChildren()) {
				Node node = (Node) child;
				EObject obj = node.getElement();
				if (obj instanceof Entity) {
					if (!(obj instanceof SubEntity)) {
						Entity entity = (Entity) obj;
						// let same name entity different
						String name = NamedItemUtil.getDisplayName(entity, isLogical) + " " + cnt++;
						sortMapEntity.put(name, node);
					}
				}

				if (node.getElement() instanceof jp.co.intramart.app.producer.db.dm.model.View) {

					jp.co.intramart.app.producer.db.dm.model.View view = (jp.co.intramart.app.producer.db.dm.model.View) obj;
					// let same name view different
					String name = NamedItemUtil.getDisplayName(view, isLogical) + " " + cnt++;
					sortMapView.put(name, node);
				}
			}

			// add views after all entities
			listAll.addAll(sortMapEntity.values());
			listAll.addAll(sortMapView.values());
			return listAll;
		}
		return null;
	}

	protected String getText() {//在outline上显示的文本
		if (ModelUtil.isLogicalEditType()) {
			return lblLogicalDataModel;
		} else {
			return lblPhycalDataModel;
		}
	}

	@Override
	protected void handleNotificationEvent(Notification event) {

		if (event.getEventType() == Notification.ADD || event.getEventType() == Notification.REMOVE) {
			this.refreshChildren();
		} else {
			super.handleNotificationEvent(event);
		}
	}

	public void setText(String text) {
		((TreeItem) super.getWidget()).setText(text);
	}
}

你可以根据自己的模型自己定义

[zhujiahill]

2.创建outlinepage

public class DiagramOutlinePage extends ContentOutlinePage

里面重写的方法看它的父类

3把outline加到DiagramEditor的getAdapter方法中

public Object getAdapter(Class type) {
		if (type == IShowInTargetList.class) {
			return new IShowInTargetList() {
				public String[] getShowInTargetIds() {
					return new String[] { ProjectExplorer.VIEW_ID };
				}
			};
		}

		// **** modify start zhujia 2008/06/17 ****
		if (type == IContentOutlinePage.class) {

			DMTreeViewer viewer = new DMTreeViewer(this);
			diagramOutlinePage = new DiagramOutlinePage(viewer, this);
			PluginUtil.setOutlinePage(diagramOutlinePage);

			viewer.setRootEditPart(new DiagramRootTreeEditPart());
			return diagramOutlinePage;
		}
		// **** modify end zhujia 2008/06/17 ****

		return super.getAdapter(type);
	}

大概就这些步骤，你慢慢理解吧