intial source from ttp://www.sf.net/projects/wdte

[phpeclipse.git] / archive / net.sourceforge.phpeclipse.css.ui / src / net / sourceforge / phpeclipse / css / ui / internal / compare / CssNode.java

/*
 * Copyright (c) 2003-2004 Christopher Lenz and others.
 * All rights reserved. This program and the accompanying materials 
 * are made available under the terms of the Common Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/cpl-v10.html
 * 
 * Contributors:
 *     Christopher Lenz - initial API and implementation
 * 
 * $Id: CssNode.java,v 1.1 2004-09-02 18:11:49 jsurfer Exp $
 */

package net.sourceforge.phpeclipse.css.ui.internal.compare;

import net.sourceforge.phpeclipse.css.ui.CssUI;
import net.sourceforge.phpeclipse.css.ui.internal.CssUIMessages;

import org.eclipse.compare.ITypedElement;
import org.eclipse.compare.structuremergeviewer.DocumentRangeNode;
import org.eclipse.jface.text.IDocument;
import org.eclipse.swt.graphics.Image;

/**
 * 
 */
public class CssNode extends DocumentRangeNode implements ITypedElement {

        // Constants ---------------------------------------------------------------

        /**
         * Type code for the top-level style sheet.
         */
        public static final int STYLE_SHEET = 0;

        /**
         * Type code for at rules.
         */
        public static final int AT_RULE = 1;

        /**
         * Type code for style rules.
         */
        public static final int STYLE_RULE = 2;

        /**
         * Type code for declarations (property-value assignment).
         */
        public static final int DECLARATION = 3;

        // Instance Variables ------------------------------------------------------

        /**
         * The display name of the node.
         */
        private String name;

        // Constructors ------------------------------------------------------------

        /**
         * Constructor for the top-level style sheet node.
         * 
         * @param document The document
         */
        public CssNode(IDocument document) {
                super(STYLE_SHEET, "root", document, 0, //$NON-NLS-1$
                        document.getLength());
        }

        /**
         * Constructor.
         * 
         * @param parent 
         * @param typeCode
         * @param id
         * @param name
         * @param start
         * @param length
         */
        public CssNode(CssNode parent, int typeCode, String id, String name,
                int start, int length) {
                super(typeCode, parent.getId() + Integer.toString(typeCode) + id,
                        parent.getDocument(), start, length);
                this.name = name;
        }

        /**
         * @see org.eclipse.compare.ITypedElement#getName()
         */
        public String getName() {
                if (getTypeCode() == STYLE_SHEET) {
                        return CssUIMessages.getString(
                                "CssStructureViewer.styleSheet"); //$NON-NLS-1$
                }
                return name;
        }

        /**
         * @see org.eclipse.compare.ITypedElement#getImage()
         */
        public Image getImage() {
                String key = null;
                switch (getTypeCode()) {
                        case STYLE_SHEET: {
                                key = CssUI.ICON_STYLE_SHEET;
                                break;
                        }
                        case AT_RULE: {
                                key = CssUI.ICON_AT_RULE;
                                break;
                        }
                        case STYLE_RULE: {
                                key = CssUI.ICON_STYLE_RULE;
                                break;
                        }
                        case DECLARATION: {
                                key = CssUI.ICON_PROPERTY;
                                break;
                        }
                        default: {
                                // we'll just return null
                        }
                }
                return CssUI.getDefault().getImageRegistry().get(key);
        }

        /**
         * @see org.eclipse.compare.ITypedElement#getType()
         */
        public String getType() {
                return "css"; //$NON-NLS-1$
        }

}