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AspectJ tools most notably contains the AspectJ compiler (AJC). AJC applies aspects to Java classes during compilation, fully replacing Javac for plain Java classes and also compiling native AspectJ or annotation-based @AspectJ syntax. Furthermore, AJC can weave aspects into existing class files in a post-compile binary weaving step. This library is a superset of AspectJ weaver and hence also of AspectJ runtime.

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/* *******************************************************************
 * Copyright (c) 1999-2001 Xerox Corporation,
 *               2002 Palo Alto Research Center, Incorporated (PARC).
 * All rights reserved.
 * This program and the accompanying materials are made available
 * under the terms of the Eclipse Public License v 2.0
 * which accompanies this distribution and is available at
 * https://www.eclipse.org/org/documents/epl-2.0/EPL-2.0.txt
 *
 * Contributors:
 *     Xerox/PARC     initial implementation
 * ******************************************************************/


package org.aspectj.ajde.ui;

import org.aspectj.asm.IProgramElement;

/**
 * @author Mik Kersten
 */
public abstract class StructureView {

	private IStructureViewNode rootNode = null;
	private IStructureViewNode activeNode = null;
	protected StructureViewProperties viewProperties = null;
	protected StructureViewRenderer renderer = null;

	public StructureViewProperties getViewProperties() {
		return viewProperties;
	}

	public IStructureViewNode getRootNode() {
		return rootNode;
	}

	public void setRootNode(IStructureViewNode rootNode) {
		this.rootNode = rootNode;
	}

	public void setViewProperties(StructureViewProperties viewProperties) {
		this.viewProperties = viewProperties;
	}

	public void setRenderer(StructureViewRenderer renderer) {
        this.renderer = renderer;
    }

	protected void notifyViewUpdated() {
		if (renderer != null) renderer.updateView(this);
    }

	/**
	 * @return		the view node corresponding to the active ProgramElementNode or null
	 */
	public IStructureViewNode getActiveNode() {
		if (activeNode != null
			&& activeNode.getStructureNode()!=null) {
			return activeNode;
		} else {
			return null;
		}
	}

	/**
	 * Searches from the root node of the view down in order to find matches.
	 *
	 * @return		the first match
	 */
	public IStructureViewNode findCorrespondingViewNode(IProgramElement node) {
		return findCorrespondingViewNodeHelper(rootNode, node);
	}

	private IStructureViewNode findCorrespondingViewNodeHelper(IStructureViewNode node, IProgramElement pNode) {
		if (node != null
			&& node.getStructureNode() != null
			&& node.getStructureNode().equals(pNode)
			&& node.getKind() == IStructureViewNode.Kind.DECLARATION) {

			return node;
		}

		if (node != null && node.getChildren() != null) {
			for (Object o : node.getChildren()) {
				IStructureViewNode foundNode = findCorrespondingViewNodeHelper((IStructureViewNode) o, pNode);
				if (foundNode != null) return foundNode;
			}
		}

		return null;
	}

	public void setActiveNode(IStructureViewNode activeNode) {
		this.activeNode = activeNode;
		if (renderer != null) renderer.setActiveNode(activeNode);
	}

	public void setActiveNode(IStructureViewNode activeNode, int sourceLine) {
		this.activeNode = activeNode;
		if (renderer != null) renderer.setActiveNode(activeNode, sourceLine);
	}
}