| /* |
| |
| 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.bridge; |
| |
| import java.awt.geom.AffineTransform; |
| import java.awt.geom.Rectangle2D; |
| |
| import org.w3c.dom.Element; |
| import org.w3c.dom.events.MutationEvent; |
| |
| import org.apache.batik.css.engine.CSSEngineEvent; |
| import org.apache.batik.dom.svg.AnimatedLiveAttributeValue; |
| import org.apache.batik.dom.svg.SVGContext; |
| import org.apache.batik.dom.svg.SVGOMElement; |
| |
| /** |
| * Base class for 'descriptive' elements, mostly title and desc. |
| * |
| * @author <a href="mailto:deweese@apache.org">Thomas DeWeese</a> |
| * @version $Id$ |
| */ |
| public abstract class SVGDescriptiveElementBridge extends AbstractSVGBridge |
| implements GenericBridge, BridgeUpdateHandler, SVGContext { |
| |
| Element theElt; |
| Element parent; |
| BridgeContext theCtx; |
| |
| public SVGDescriptiveElementBridge() { |
| } |
| |
| |
| /** |
| * Invoked to handle an <tt>Element</tt> for a given |
| * <tt>BridgeContext</tt>. For example, see the |
| * <tt>SVGDescElementBridge</tt>. |
| * |
| * @param ctx the bridge context to use |
| * @param e the element to be handled |
| */ |
| public void handleElement(BridgeContext ctx, Element e){ |
| UserAgent ua = ctx.getUserAgent(); |
| ua.handleElement(e, Boolean.TRUE); |
| |
| if (ctx.isDynamic()) { |
| SVGDescriptiveElementBridge b; |
| b = (SVGDescriptiveElementBridge)getInstance(); |
| b.theElt = e; |
| b.parent = (Element)e.getParentNode(); |
| b.theCtx = ctx; |
| ((SVGOMElement)e).setSVGContext(b); |
| } |
| |
| } |
| |
| // BridgeUpdateHandler implementation //////////////////////////////////// |
| |
| public void dispose() { |
| UserAgent ua = theCtx.getUserAgent(); |
| ((SVGOMElement)theElt).setSVGContext(null); |
| ua.handleElement(theElt, parent); |
| theElt = null; |
| parent = null; |
| } |
| public void handleDOMNodeInsertedEvent(MutationEvent evt) { |
| UserAgent ua = theCtx.getUserAgent(); |
| ua.handleElement(theElt, Boolean.TRUE); |
| } |
| public void handleDOMCharacterDataModified(MutationEvent evt) { |
| UserAgent ua = theCtx.getUserAgent(); |
| ua.handleElement(theElt, Boolean.TRUE); |
| } |
| |
| public void handleDOMNodeRemovedEvent (MutationEvent evt) { |
| dispose(); |
| } |
| |
| public void handleDOMAttrModifiedEvent(MutationEvent evt) { } |
| public void handleCSSEngineEvent(CSSEngineEvent evt) { } |
| public void handleAnimatedAttributeChanged |
| (AnimatedLiveAttributeValue alav) { } |
| public void handleOtherAnimationChanged(String type) { } |
| |
| |
| // SVGContext implementation /////////////////////////////////////////// |
| |
| /** |
| * Returns the size of a px CSS unit in millimeters. |
| */ |
| public float getPixelUnitToMillimeter() { |
| return theCtx.getUserAgent().getPixelUnitToMillimeter(); |
| } |
| |
| /** |
| * Returns the size of a px CSS unit in millimeters. |
| * This will be removed after next release. |
| * @see #getPixelUnitToMillimeter() |
| */ |
| public float getPixelToMM() { |
| return getPixelUnitToMillimeter(); |
| |
| } |
| |
| public Rectangle2D getBBox() { return null; } |
| public AffineTransform getScreenTransform() { |
| return theCtx.getUserAgent().getTransform(); |
| } |
| public void setScreenTransform(AffineTransform at) { |
| theCtx.getUserAgent().setTransform(at); |
| } |
| public AffineTransform getCTM() { return null; } |
| public AffineTransform getGlobalTransform() { return null; } |
| public float getViewportWidth() { |
| return theCtx.getBlockWidth(theElt); |
| } |
| public float getViewportHeight() { |
| return theCtx.getBlockHeight(theElt); |
| } |
| public float getFontSize() { return 0; } |
| } |