/*

   Licensed to the Apache Software Foundation (ASF) under one or more
   contributor license agreements.  See the NOTICE file distributed with
   this work for additional information regarding copyright ownership.
   The ASF licenses this file to You under the Apache License, Version 2.0
   (the "License"); you may not use this file except in compliance with
   the License.  You may obtain a copy of the License at

       http://www.apache.org/licenses/LICENSE-2.0

   Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS,
   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   See the License for the specific language governing permissions and
   limitations under the License.

 */
package org.apache.batik.anim.dom;

import java.awt.geom.AffineTransform;

import org.apache.batik.anim.values.AnimatableMotionPointValue;
import org.apache.batik.anim.values.AnimatableValue;
import org.apache.batik.dom.AbstractDocument;
import org.apache.batik.dom.svg.SVGMotionAnimatableElement;
import org.apache.batik.dom.svg.SVGTestsSupport;
import org.apache.batik.dom.util.XMLSupport;
import org.apache.batik.util.DoublyIndexedTable;
import org.apache.batik.util.SVGTypes;

import org.w3c.dom.svg.SVGAnimatedBoolean;
import org.w3c.dom.svg.SVGAnimatedTransformList;
import org.w3c.dom.svg.SVGElement;
import org.w3c.dom.svg.SVGException;
import org.w3c.dom.svg.SVGMatrix;
import org.w3c.dom.svg.SVGRect;
import org.w3c.dom.svg.SVGStringList;

This class provides a common superclass for all graphics elements.
Author:
Stephane Hillion
Version:
$Id: SVGGraphicsElement.java 1733416 2016-03-03 07:07:13Z gadams $/**
 * This class provides a common superclass for all graphics elements.
 *
 * @author <a href="mailto:stephane@hillion.org">Stephane Hillion</a>
 * @version $Id: SVGGraphicsElement.java 1733416 2016-03-03 07:07:13Z gadams $
 */
public abstract class SVGGraphicsElement
        extends SVGStylableElement
        implements SVGMotionAnimatableElement {

    
Table mapping XML attribute names to TraitInformation objects.
/**
     * Table mapping XML attribute names to TraitInformation objects.
     */
    protected static DoublyIndexedTable xmlTraitInformation;
    static {
        DoublyIndexedTable t =
            new DoublyIndexedTable(SVGStylableElement.xmlTraitInformation);
        t.put(null, SVG_TRANSFORM_ATTRIBUTE,
                new TraitInformation(true, SVGTypes.TYPE_TRANSFORM_LIST));
        t.put(null, SVG_EXTERNAL_RESOURCES_REQUIRED_ATTRIBUTE,
                new TraitInformation(true, SVGTypes.TYPE_BOOLEAN));
//         t.put(null, SVG_REQUIRED_EXTENSIONS_ATTRIBUTE,
//                 new TraitInformation(false, SVGTypes.TYPE_URI_LIST));
//         t.put(null, SVG_REQUIRED_FEATURES_ATTRIBUTE,
//                 new TraitInformation(false, SVGTypes.TYPE_URI_LIST));
//         t.put(null, SVG_SYSTEM_LANGUAGE_ATTRIBUTE,
//                 new TraitInformation(false, SVGTypes.TYPE_LANG_LIST));
        xmlTraitInformation = t;

    }

    
The 'transform' attribute value.
/**
     * The 'transform' attribute value.
     */
    protected SVGOMAnimatedTransformList transform;

    
The 'externalResourcesRequired' attribute value.
/**
     * The 'externalResourcesRequired' attribute value.
     */
    protected SVGOMAnimatedBoolean externalResourcesRequired;

    
Supplemental transformation due to motion animation.
/**
     * Supplemental transformation due to motion animation.
     */
    protected AffineTransform motionTransform;

    
Creates a new SVGGraphicsElement.
/**
     * Creates a new SVGGraphicsElement.
     */
    protected SVGGraphicsElement() {
    }

    
Creates a new SVGGraphicsElement object.
Params:
prefix – The namespace prefix.
owner – The owner document./**
     * Creates a new SVGGraphicsElement object.
     * @param prefix The namespace prefix.
     * @param owner The owner document.
     */
    protected SVGGraphicsElement(String prefix, AbstractDocument owner) {
        super(prefix, owner);
        initializeLiveAttributes();
    }

    
Initializes all live attributes for this element.
/**
     * Initializes all live attributes for this element.
     */
    protected void initializeAllLiveAttributes() {
        super.initializeAllLiveAttributes();
        initializeLiveAttributes();
    }

    
Initializes the live attribute values of this element.
/**
     * Initializes the live attribute values of this element.
     */
    private void initializeLiveAttributes() {
        transform =
            createLiveAnimatedTransformList(null, SVG_TRANSFORM_ATTRIBUTE, "");
        externalResourcesRequired =
            createLiveAnimatedBoolean
                (null, SVG_EXTERNAL_RESOURCES_REQUIRED_ATTRIBUTE, false);
    }

    
Returns the table of TraitInformation objects for this element.
/**
     * Returns the table of TraitInformation objects for this element.
     */
    protected DoublyIndexedTable getTraitInformationTable() {
        return xmlTraitInformation;
    }

    // SVGLocatable support /////////////////////////////////////////////

    
DOM: Implements SVGLocatable.getNearestViewportElement(). /**
     * <b>DOM</b>: Implements {@link
     * org.w3c.dom.svg.SVGLocatable#getNearestViewportElement()}.
     */
    public SVGElement getNearestViewportElement() {
        return SVGLocatableSupport.getNearestViewportElement(this);
    }

    
DOM: Implements SVGLocatable.getFarthestViewportElement(). /**
     * <b>DOM</b>: Implements {@link
     * org.w3c.dom.svg.SVGLocatable#getFarthestViewportElement()}.
     */
    public SVGElement getFarthestViewportElement() {
        return SVGLocatableSupport.getFarthestViewportElement(this);
    }

    
DOM: Implements SVGLocatable.getBBox(). /**
     * <b>DOM</b>: Implements {@link
     * org.w3c.dom.svg.SVGLocatable#getBBox()}.
     */
    public SVGRect getBBox() {
        return SVGLocatableSupport.getBBox(this);
    }

    
DOM: Implements SVGLocatable.getCTM(). /**
     * <b>DOM</b>: Implements {@link
     * org.w3c.dom.svg.SVGLocatable#getCTM()}.
     */
    public SVGMatrix getCTM() {
        return SVGLocatableSupport.getCTM(this);
    }

    
DOM: Implements SVGLocatable.getScreenCTM(). /**
     * <b>DOM</b>: Implements {@link
     * org.w3c.dom.svg.SVGLocatable#getScreenCTM()}.
     */
    public SVGMatrix getScreenCTM() {
        return SVGLocatableSupport.getScreenCTM(this);
    }

    
DOM: Implements SVGLocatable.getTransformToElement(SVGElement). /**
     * <b>DOM</b>: Implements {@link
     * org.w3c.dom.svg.SVGLocatable#getTransformToElement(SVGElement)}.
     */
    public SVGMatrix getTransformToElement(SVGElement element)
        throws SVGException {
        return SVGLocatableSupport.getTransformToElement(this, element);
    }

    // SVGTransformable support //////////////////////////////////////////////

    
DOM: Implements SVGTransformable.getTransform(). /**
     * <b>DOM</b>: Implements {@link
     * org.w3c.dom.svg.SVGTransformable#getTransform()}.
     */
    public SVGAnimatedTransformList getTransform() {
        return transform;
    }

    // SVGExternalResourcesRequired support /////////////////////////////

    
DOM: Implements SVGExternalResourcesRequired.getExternalResourcesRequired(). /**
     * <b>DOM</b>: Implements {@link
     * org.w3c.dom.svg.SVGExternalResourcesRequired#getExternalResourcesRequired()}.
     */
    public SVGAnimatedBoolean getExternalResourcesRequired() {
        return externalResourcesRequired;
    }

    // SVGLangSpace support //////////////////////////////////////////////////

    
DOM: Returns the xml:lang attribute value.
/**
     * <b>DOM</b>: Returns the xml:lang attribute value.
     */
    public String getXMLlang() {
        return XMLSupport.getXMLLang(this);
    }

    
DOM: Sets the xml:lang attribute value.
/**
     * <b>DOM</b>: Sets the xml:lang attribute value.
     */
    public void setXMLlang(String lang) {
        setAttributeNS(XML_NAMESPACE_URI, XML_LANG_QNAME, lang);
    }

    
DOM: Returns the xml:space attribute value.
/**
     * <b>DOM</b>: Returns the xml:space attribute value.
     */
    public String getXMLspace() {
        return XMLSupport.getXMLSpace(this);
    }

    
DOM: Sets the xml:space attribute value.
/**
     * <b>DOM</b>: Sets the xml:space attribute value.
     */
    public void setXMLspace(String space) {
        setAttributeNS(XML_NAMESPACE_URI, XML_SPACE_QNAME, space);
    }

    // SVGTests support ///////////////////////////////////////////////////

    
DOM: Implements SVGTests.getRequiredFeatures(). /**
     * <b>DOM</b>: Implements {@link
     * org.w3c.dom.svg.SVGTests#getRequiredFeatures()}.
     */
    public SVGStringList getRequiredFeatures() {
        return SVGTestsSupport.getRequiredFeatures(this);
    }

    
DOM: Implements SVGTests.getRequiredExtensions(). /**
     * <b>DOM</b>: Implements {@link
     * org.w3c.dom.svg.SVGTests#getRequiredExtensions()}.
     */
    public SVGStringList getRequiredExtensions() {
        return SVGTestsSupport.getRequiredExtensions(this);
    }

    
DOM: Implements SVGTests.getSystemLanguage(). /**
     * <b>DOM</b>: Implements {@link
     * org.w3c.dom.svg.SVGTests#getSystemLanguage()}.
     */
    public SVGStringList getSystemLanguage() {
        return SVGTestsSupport.getSystemLanguage(this);
    }

    
DOM: Implements SVGTests.hasExtension(String). /**
     * <b>DOM</b>: Implements {@link
     * org.w3c.dom.svg.SVGTests#hasExtension(String)}.
     */
    public boolean hasExtension(String extension) {
        return SVGTestsSupport.hasExtension(this, extension);
    }

    // SVGMotionAnimatableElement ////////////////////////////////////////////

    
Returns the AffineTransform representing the current motion animation for this element. /**
     * Returns the {@link AffineTransform} representing the current motion
     * animation for this element.
     */
    public AffineTransform getMotionTransform() {
        return motionTransform;
    }

    // AnimationTarget ///////////////////////////////////////////////////////

    
Updates a 'other' animation value in this target.
/**
     * Updates a 'other' animation value in this target.
     */
    public void updateOtherValue(String type, AnimatableValue val) {
        if (type.equals("motion")) {
            if (motionTransform == null) {
                motionTransform = new AffineTransform();
            }
            if (val == null) {
                motionTransform.setToIdentity();
            } else {
                AnimatableMotionPointValue p = (AnimatableMotionPointValue) val;
                motionTransform.setToTranslation(p.getX(), p.getY());
                motionTransform.rotate(p.getAngle());
            }
            SVGOMDocument d = (SVGOMDocument) ownerDocument;
            d.getAnimatedAttributeListener().otherAnimationChanged(this, type);
        } else {
            super.updateOtherValue(type, val);
        }
    }
}