org.ebayopensource.vjet.eclipse.internal.ui.view.scriptunit.ScriptUnitTreeLabelProvider.java Source code

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Here is the source code for org.ebayopensource.vjet.eclipse.internal.ui.view.scriptunit.ScriptUnitTreeLabelProvider.java

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/*******************************************************************************
 * Copyright (c) 2005-2011 eBay Inc.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 *******************************************************************************/
/**
 * 
 */
package org.ebayopensource.vjet.eclipse.internal.ui.view.scriptunit;

import org.ebayopensource.dsf.jst.IJstMethod;
import org.ebayopensource.dsf.jst.IJstNode;
import org.ebayopensource.dsf.jst.IJstProperty;
import org.ebayopensource.dsf.jst.IJstType;
import org.ebayopensource.dsf.jst.IScriptUnit;
import org.ebayopensource.dsf.jst.JstSource;
import org.ebayopensource.dsf.jst.declaration.JstVar;
import org.ebayopensource.dsf.jst.term.JstIdentifier;
import org.ebayopensource.dsf.jstojava.translator.JstUtil;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.swt.graphics.Image;

/**
 * 
 *
 */
class ScriptUnitTreeLabelProvider extends LabelProvider {
    private boolean checkNode;

    /* (non-Javadoc)
     * @see org.eclipse.jface.viewers.LabelProvider#getImage(java.lang.Object)
     */
    public Image getImage(Object element) {
        if (!this.checkNode || !(element instanceof IJstNode))
            return null;

        IJstNode jstNode = (IJstNode) element;
        if ((jstNode.getSource() == null) || (jstNode.getRootType() == null))
            return null;

        int startOffset = jstNode.getSource().getStartOffSet();
        int endOffset = jstNode.getSource().getEndOffSet();

        //switch to new version JstUtil
        Object node = JstUtil.getLeafNode(jstNode.getRootType(), startOffset, endOffset);
        //      Object node = JstUtil.getNode(jstNode.getRootType(), startOffset, endOffset);
        if (node == element)
            return null;
        else
            return ImageDescriptor.getMissingImageDescriptor().createImage();
    }

    /* (non-Javadoc)
     * @see org.eclipse.jface.viewers.LabelProvider#getText(java.lang.Object)
     */
    public String getText(Object element) {
        if (element instanceof IScriptUnit)
            return "Script Unit";

        if (element instanceof IJstNode)
            return getJstNodeLabel((IJstNode) element);

        return null;
    }

    private String getJstNodeLabel(IJstNode jstNode) {
        return getName(jstNode) + getSourceRange(jstNode);
    }

    private String getName(IJstNode jstNode) {
        String simpleName = jstNode.getClass().getSimpleName();

        if (jstNode instanceof IJstType)
            return simpleName + ":" + ((IJstType) jstNode).getName();

        if (jstNode instanceof IJstMethod)
            return simpleName + ":" + ((IJstMethod) jstNode).getName();

        if (jstNode instanceof IJstProperty)
            return simpleName + ":" + ((IJstProperty) jstNode).getName();

        if (jstNode instanceof JstVar)
            return simpleName + ":" + ((JstVar) jstNode).getName();

        if (jstNode instanceof JstIdentifier)
            return simpleName + ":" + ((JstIdentifier) jstNode).getName();

        return simpleName;
    }

    private String getSourceRange(IJstNode jstNode) {
        JstSource jstSource = jstNode.getSource();
        if (jstSource != null)
            return "[" + jstSource.getStartOffSet() + "," + jstSource.getEndOffSet() + "]";

        return "";
    }

    /**
     * @param checkNode the checkNode to set
     */
    public void setCheckNode(boolean checkNode) {
        this.checkNode = checkNode;
    }

}