| /* |
| |
| 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.svggen; |
| |
| import java.awt.Image; |
| import java.awt.image.RenderedImage; |
| import java.awt.image.renderable.RenderableImage; |
| |
| import org.apache.batik.util.XMLConstants; |
| |
| import org.w3c.dom.Element; |
| |
| /** |
| * This class provides a default implementation of the ImageHandler |
| * interface simply puts a place holder in the xlink:href |
| * attribute and sets the width and height of the element. |
| * |
| * @author <a href="mailto:vincent.hardy@eng.sun.com">Vincent Hardy</a> |
| * @version $Id$ |
| * @see org.apache.batik.svggen.SVGGraphics2D |
| */ |
| public class DefaultImageHandler |
| implements ImageHandler, ErrorConstants, XMLConstants { |
| |
| /** |
| * Build a <code>DefaultImageHandler</code>. |
| */ |
| public DefaultImageHandler() { |
| } |
| |
| /** |
| * The handler should set the xlink:href tag and the width and |
| * height attributes. |
| */ |
| public void handleImage(Image image, Element imageElement, |
| SVGGeneratorContext generatorContext) { |
| // |
| // First, set the image width and height |
| // |
| imageElement.setAttributeNS(null, SVG_WIDTH_ATTRIBUTE, String.valueOf( image.getWidth( null ) ) ); |
| imageElement.setAttributeNS(null, SVG_HEIGHT_ATTRIBUTE, String.valueOf( image.getHeight( null ) ) ); |
| |
| // |
| // Now, set the href |
| // |
| try { |
| handleHREF(image, imageElement, generatorContext); |
| } catch (SVGGraphics2DIOException e) { |
| try { |
| generatorContext.errorHandler.handleError(e); |
| } catch (SVGGraphics2DIOException io) { |
| // we need a runtime exception because |
| // java.awt.Graphics2D method doesn't throw exceptions.. |
| throw new SVGGraphics2DRuntimeException(io); |
| } |
| } |
| } |
| |
| /** |
| * The handler should set the xlink:href tag and the width and |
| * height attributes. |
| */ |
| public void handleImage(RenderedImage image, Element imageElement, |
| SVGGeneratorContext generatorContext) { |
| // |
| // First, set the image width and height |
| // |
| imageElement.setAttributeNS(null, SVG_WIDTH_ATTRIBUTE, String.valueOf( image.getWidth() ) ); |
| imageElement.setAttributeNS(null, SVG_HEIGHT_ATTRIBUTE, String.valueOf( image.getHeight() ) ); |
| |
| // |
| // Now, set the href |
| // |
| try { |
| handleHREF(image, imageElement, generatorContext); |
| } catch (SVGGraphics2DIOException e) { |
| try { |
| generatorContext.errorHandler.handleError(e); |
| } catch (SVGGraphics2DIOException io) { |
| // we need a runtime exception because |
| // java.awt.Graphics2D method doesn't throw exceptions.. |
| throw new SVGGraphics2DRuntimeException(io); |
| } |
| } |
| } |
| |
| /** |
| * The handler should set the xlink:href tag and the width and |
| * height attributes. |
| */ |
| public void handleImage(RenderableImage image, Element imageElement, |
| SVGGeneratorContext generatorContext) { |
| // |
| // First, set the image width and height |
| // |
| imageElement.setAttributeNS(null, SVG_WIDTH_ATTRIBUTE, String.valueOf( image.getWidth() ) ); |
| imageElement.setAttributeNS(null, SVG_HEIGHT_ATTRIBUTE, String.valueOf( image.getHeight() ) ); |
| |
| // |
| // Now, set the href |
| // |
| try { |
| handleHREF(image, imageElement, generatorContext); |
| } catch (SVGGraphics2DIOException e) { |
| try { |
| generatorContext.errorHandler.handleError(e); |
| } catch (SVGGraphics2DIOException io) { |
| // we need a runtime exception because |
| // java.awt.Graphics2D method doesn't throw exceptions.. |
| throw new SVGGraphics2DRuntimeException(io); |
| } |
| } |
| } |
| |
| /** |
| * This template method should set the xlink:href attribute on the input |
| * Element parameter |
| */ |
| protected void handleHREF(Image image, Element imageElement, |
| SVGGeneratorContext generatorContext) |
| throws SVGGraphics2DIOException { |
| // Simply write a placeholder |
| imageElement.setAttributeNS(XLINK_NAMESPACE_URI, |
| XLINK_HREF_QNAME, image.toString()); |
| } |
| |
| /** |
| * This template method should set the xlink:href attribute on the input |
| * Element parameter |
| */ |
| protected void handleHREF(RenderedImage image, Element imageElement, |
| SVGGeneratorContext generatorContext) |
| throws SVGGraphics2DIOException { |
| // Simply write a placeholder |
| imageElement.setAttributeNS(XLINK_NAMESPACE_URI, |
| XLINK_HREF_QNAME, image.toString()); |
| } |
| |
| /** |
| * This template method should set the xlink:href attribute on the input |
| * Element parameter |
| */ |
| protected void handleHREF(RenderableImage image, Element imageElement, |
| SVGGeneratorContext generatorContext) |
| throws SVGGraphics2DIOException { |
| // Simply write a placeholder |
| imageElement.setAttributeNS(XLINK_NAMESPACE_URI, |
| XLINK_HREF_QNAME, image.toString()); |
| } |
| } |
| |