| /* |
| * 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. |
| */ |
| |
| /* $Id$ */ |
| |
| package org.apache.fop.render.svg; |
| |
| import org.xml.sax.SAXException; |
| |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| |
| import org.apache.xmlgraphics.xmp.Metadata; |
| |
| import org.apache.fop.fonts.FontInfo; |
| import org.apache.fop.render.intermediate.AbstractXMLWritingIFDocumentHandler; |
| import org.apache.fop.render.intermediate.IFDocumentHandlerConfigurator; |
| import org.apache.fop.render.intermediate.IFException; |
| import org.apache.fop.render.intermediate.IFState; |
| import org.apache.fop.render.java2d.Java2DUtil; |
| |
| /** |
| * Abstract base class for SVG Painter implementations. |
| */ |
| public abstract class AbstractSVGDocumentHandler extends AbstractXMLWritingIFDocumentHandler |
| implements SVGConstants { |
| |
| /** logging instance */ |
| private static Log log = LogFactory.getLog(AbstractSVGDocumentHandler.class); |
| |
| /** Font configuration */ |
| protected FontInfo fontInfo; |
| |
| /** Holds the intermediate format state */ |
| protected IFState state; |
| |
| private static final int MODE_NORMAL = 0; |
| private static final int MODE_TEXT = 1; |
| |
| private int mode = MODE_NORMAL; |
| |
| /** {@inheritDoc} */ |
| protected String getMainNamespace() { |
| return NAMESPACE; |
| } |
| |
| /** {@inheritDoc} */ |
| public FontInfo getFontInfo() { |
| return this.fontInfo; |
| } |
| |
| /** {@inheritDoc} */ |
| public void setFontInfo(FontInfo fontInfo) { |
| this.fontInfo = fontInfo; |
| } |
| |
| /** {@inheritDoc} */ |
| public void setDefaultFontInfo(FontInfo fontInfo) { |
| FontInfo fi = Java2DUtil.buildDefaultJava2DBasedFontInfo(fontInfo, getUserAgent()); |
| setFontInfo(fi); |
| } |
| |
| /** {@inheritDoc} */ |
| public IFDocumentHandlerConfigurator getConfigurator() { |
| return null; //No configurator, yet. |
| } |
| |
| /** {@inheritDoc} */ |
| public void startDocumentHeader() throws IFException { |
| try { |
| handler.startElement("defs"); |
| } catch (SAXException e) { |
| throw new IFException("SAX error in startDocumentHeader()", e); |
| } |
| } |
| |
| /** {@inheritDoc} */ |
| public void endDocumentHeader() throws IFException { |
| try { |
| handler.endElement("defs"); |
| } catch (SAXException e) { |
| throw new IFException("SAX error in startDocumentHeader()", e); |
| } |
| } |
| |
| /** {@inheritDoc} */ |
| public void handleExtensionObject(Object extension) throws IFException { |
| if (extension instanceof Metadata) { |
| Metadata meta = (Metadata)extension; |
| try { |
| handler.startElement("metadata"); |
| meta.toSAX(this.handler); |
| handler.endElement("metadata"); |
| } catch (SAXException e) { |
| throw new IFException("SAX error while handling extension object", e); |
| } |
| } else { |
| log.debug("Don't know how to handle extension object. Ignoring: " |
| + extension + " (" + extension.getClass().getName() + ")"); |
| } |
| } |
| } |