- REST PDF/PNG/Freemind transform working...
This commit is contained in:
Paulo Gustavo Veiga
@@ -1,44 +1,55 @@
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/*
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* Copyright [2011] [wisemapping]
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*
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* Licensed under WiseMapping Public License, Version 1.0 (the "License").
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* It is basically the Apache License, Version 2.0 (the "License") plus the
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* "powered by wisemapping" text requirement on every single page;
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the license at
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*
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* http://www.wisemapping.org/license
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.wisemapping.exporter;
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public enum ExportFormat {
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SVG("image/svg+xml", "svg"),
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JPEG("image/jpeg", "jpg"),
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PNG("image/png", "png"),
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MINDJET("text/xml", "xml"),
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PDF("application/pdf", "pdf"),
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FREEMIND("text/xml", "mm");
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private String contentType;
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private String fileExtension;
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ExportFormat(String contentType, String fileExtension) {
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this.contentType = contentType;
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this.fileExtension = fileExtension;
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}
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public String getFileExtension() {
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return fileExtension;
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}
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public String getContentType() {
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return contentType;
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}
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}
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/*
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* Copyright [2011] [wisemapping]
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*
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* Licensed under WiseMapping Public License, Version 1.0 (the "License").
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* It is basically the Apache License, Version 2.0 (the "License") plus the
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* "powered by wisemapping" text requirement on every single page;
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the license at
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*
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* http://www.wisemapping.org/license
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.wisemapping.exporter;
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import org.jetbrains.annotations.NotNull;
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public enum ExportFormat {
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SVG("image/svg+xml", "svg"),
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JPEG("image/jpeg", "jpg"),
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PNG("image/png", "png"),
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PDF("application/pdf", "pdf"),
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FREEMIND("application/freemind", "mm");
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private String contentType;
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private String fileExtension;
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ExportFormat(String contentType, String fileExtension) {
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this.contentType = contentType;
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this.fileExtension = fileExtension;
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}
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public String getFileExtension() {
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return fileExtension;
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}
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public String getContentType() {
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return contentType;
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}
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public static ExportFormat fromContentType(@NotNull final String contentType) {
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final ExportFormat[] values = ExportFormat.values();
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for (ExportFormat value : values) {
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if (value.getContentType().equals(contentType)) {
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return value;
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}
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}
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throw new IllegalStateException("ComponentType could not be mapped:" + contentType);
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}
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}
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@@ -1,304 +1,304 @@
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/*
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* Copyright [2011] [wisemapping]
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*
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* Licensed under WiseMapping Public License, Version 1.0 (the "License").
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* It is basically the Apache License, Version 2.0 (the "License") plus the
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* "powered by wisemapping" text requirement on every single page;
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the license at
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*
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* http://www.wisemapping.org/license
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.wisemapping.exporter;
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import com.wisemapping.model.MindMap;
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import org.apache.batik.transcoder.Transcoder;
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import org.apache.batik.transcoder.TranscoderException;
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import org.apache.batik.transcoder.TranscoderInput;
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import org.apache.batik.transcoder.TranscoderOutput;
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import org.apache.batik.transcoder.image.ImageTranscoder;
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import org.apache.batik.transcoder.image.JPEGTranscoder;
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import org.apache.batik.transcoder.image.PNGTranscoder;
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import org.apache.fop.svg.PDFTranscoder;
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import org.jetbrains.annotations.NotNull;
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import org.jetbrains.annotations.Nullable;
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import org.w3c.dom.*;
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import org.xml.sax.InputSource;
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import org.xml.sax.SAXException;
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import javax.xml.bind.JAXBException;
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import javax.xml.parsers.DocumentBuilder;
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import javax.xml.parsers.DocumentBuilderFactory;
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import javax.xml.parsers.ParserConfigurationException;
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import javax.xml.stream.XMLStreamException;
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import javax.xml.transform.Transformer;
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import javax.xml.transform.TransformerException;
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import javax.xml.transform.TransformerFactory;
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import javax.xml.transform.dom.DOMSource;
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import javax.xml.transform.stream.StreamResult;
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import java.io.*;
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public class ExporterFactory {
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private static final String GROUP_NODE_NAME = "g";
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private static final String RECT_NODE_NAME = "rect";
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private static final String IMAGE_NODE_NAME = "image";
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private ExporterFactory() throws ParserConfigurationException {
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}
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public static void export(@NotNull ExportProperties properties, @Nullable MindMap map, @NotNull OutputStream output, @NotNull String mapSvg) throws TranscoderException, IOException, ParserConfigurationException, SAXException, XMLStreamException, TransformerException, JAXBException, ExportException {
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final ExportFormat format = properties.getFormat();
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final String imgPath = properties.getBaseImgPath();
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switch (format) {
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case PNG: {
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// Create a JPEG transcoder
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final Transcoder transcoder = new PNGTranscoder();
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final ExportProperties.ImageProperties imageProperties =
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(ExportProperties.ImageProperties) properties;
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final ExportProperties.ImageProperties.Size size = imageProperties.getSize();
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transcoder.addTranscodingHint(ImageTranscoder.KEY_WIDTH, size.getWidth());
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// Create the transcoder input.
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final Document document = normalizeSvg(mapSvg, imgPath);
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final String svgString = domToString(document);
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final TranscoderInput input = new TranscoderInput(new CharArrayReader(svgString.toCharArray()));
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TranscoderOutput trascoderOutput = new TranscoderOutput(output);
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// Save the image.
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transcoder.transcode(input, trascoderOutput);
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break;
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}
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case JPEG: {
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// Create a JPEG transcoder
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final Transcoder transcoder = new JPEGTranscoder();
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transcoder.addTranscodingHint(JPEGTranscoder.KEY_QUALITY, new Float(.99));
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final ExportProperties.ImageProperties imageProperties =
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(ExportProperties.ImageProperties) properties;
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final ExportProperties.ImageProperties.Size size = imageProperties.getSize();
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transcoder.addTranscodingHint(ImageTranscoder.KEY_WIDTH, size.getWidth());
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// Create the transcoder input.
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final Document document = normalizeSvg(mapSvg, imgPath);
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final String svgString = domToString(document);
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final TranscoderInput input = new TranscoderInput(new CharArrayReader(svgString.toCharArray()));
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TranscoderOutput trascoderOutput = new TranscoderOutput(output);
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// Save the image.
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transcoder.transcode(input, trascoderOutput);
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break;
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}
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case PDF: {
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// Create a JPEG transcoder
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final Transcoder transcoder = new PDFTranscoder();
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// Create the transcoder input.
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final Document document = normalizeSvg(mapSvg, imgPath);
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final String svgString = domToString(document);
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final TranscoderInput input = new TranscoderInput(new CharArrayReader(svgString.toCharArray()));
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TranscoderOutput trascoderOutput = new TranscoderOutput(output);
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// Save the image.
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transcoder.transcode(input, trascoderOutput);
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break;
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}
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case SVG: {
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final Document dom = normalizeSvg(mapSvg, imgPath);
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output.write(domToString(dom).getBytes("UTF-8"));
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break;
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}
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case FREEMIND: {
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final FreemindExporter exporter = new FreemindExporter();
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exporter.export(map.getUnzippedXml().getBytes(), output);
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break;
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}
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default:
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throw new UnsupportedOperationException("Export method not supported.");
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}
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}
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private static Document normalizeSvg(@NotNull String svgXml, final String imgBaseUrl) throws XMLStreamException, ParserConfigurationException, IOException, SAXException, TransformerException {
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final DocumentBuilder documentBuilder = getDocumentBuilder();
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svgXml = svgXml.replaceFirst("<svg ", "<svg xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\" ");
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// @Todo: This must not happen...
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svgXml = svgXml.replaceAll("NaN,", "0");
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svgXml = svgXml.replaceAll(",NaN", "0");
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Document document;
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try {
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final Reader in = new CharArrayReader(svgXml.toCharArray());
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final InputSource is = new InputSource(in);
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document = documentBuilder.parse(is);
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} catch (SAXException e) {
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// It must be a corrupted SVG format. Try to hack it and try again ...
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svgXml = svgXml.replaceAll("<image([^>]+)>", "<image$1/>");
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final Reader in = new CharArrayReader(svgXml.toCharArray());
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final InputSource is = new InputSource(in);
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document = documentBuilder.parse(is);
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}
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fitSvg(document);
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fixImageTagHref(document, imgBaseUrl);
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return document;
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}
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private static DocumentBuilder getDocumentBuilder() throws ParserConfigurationException {
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DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
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return factory.newDocumentBuilder();
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}
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private static String domToString(@NotNull Document document) throws TransformerException {
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DOMSource domSource = new DOMSource(document);
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// Create a string writer
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final CharArrayWriter result = new CharArrayWriter();
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// Create the stream stream for the transform
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StreamResult stream = new StreamResult(result);
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// Create a Transformer to serialize the document
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TransformerFactory tFactory = TransformerFactory.newInstance();
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Transformer transformer = tFactory.newTransformer();
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transformer.setOutputProperty("indent", "yes");
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// Transform the document to the stream stream
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transformer.transform(domSource, stream);
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return result.toString();
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}
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private static void fixImageTagHref(Document document, String imgBaseUrl) {
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final Node child = document.getFirstChild();
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fixImageTagHref(document, (Element) child, imgBaseUrl);
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}
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private static void fixImageTagHref(@NotNull Document document, @NotNull Element element, String imgBaseUrl) {
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final NodeList list = element.getChildNodes();
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for (int i = 0; i < list.getLength(); i++) {
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final Node node = list.item(i);
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// find all groups
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if (GROUP_NODE_NAME.equals(node.getNodeName())) {
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// Must continue looking ....
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fixImageTagHref(document, (Element) node, imgBaseUrl);
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} else if (IMAGE_NODE_NAME.equals(node.getNodeName())) {
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Element elem = (Element) node;
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// Cook image href ...
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final String imgUrl = elem.getAttribute("href");
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int index = imgUrl.lastIndexOf("/");
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elem.removeAttribute("href");
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if (index != -1) {
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final String iconName = imgUrl.substring(index+1);
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// Hack for backward compatibility . This can be removed in 2012. :)
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String imgPath;
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if (imgUrl.contains("images")) {
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imgPath = imgBaseUrl + "/../icons/legacy/" + iconName;
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} else {
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imgPath = imgBaseUrl + "/" + imgUrl;
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}
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elem.setAttribute("xlink:href", imgPath);
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elem.appendChild(document.createTextNode(" "));
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}
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}
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}
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}
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private static void fitSvg(Document document) {
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// viewBox size
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int mapWidth = 1024;
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int mapHeight = 768;
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// some browser return width and heigth with precision
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float currentMaxWidth = 0;
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float currentMaxHeight = 0;
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final Element svgNode = (Element) document.getFirstChild();
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final NodeList list = svgNode.getChildNodes();
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for (int i = 0; i < list.getLength(); i++) {
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final Node node = list.item(i);
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// find all groups
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if (GROUP_NODE_NAME.equals(node.getNodeName())) {
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final NamedNodeMap groupAttributes = node.getAttributes();
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final String[] transformUnit = getTransformUnit(groupAttributes);
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int groupPositionX = Integer.parseInt(transformUnit[0].trim());
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int groupPositionY = 0;
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if (transformUnit.length > 1) {
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groupPositionY = Integer.parseInt(transformUnit[1].trim());
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}
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int signumX = Integer.signum(groupPositionX);
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int signumY = Integer.signum(groupPositionY);
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final NodeList groupChildren = node.getChildNodes();
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for (int idx = 0; idx < groupChildren.getLength(); idx++) {
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final Node rectNode = groupChildren.item(idx);
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float curentHeight = 0;
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float curentWidth = 0;
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// If has a rect use the rect to calcular the real width of the topic
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if (RECT_NODE_NAME.equals(rectNode.getNodeName())) {
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final NamedNodeMap rectAttributes = rectNode.getAttributes();
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final Node attributeHeight = rectAttributes.getNamedItem("height");
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final Node attributeWidth = rectAttributes.getNamedItem("width");
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curentHeight = Float.valueOf(attributeHeight.getNodeValue());
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curentWidth = Float.valueOf(attributeWidth.getNodeValue());
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}
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float newMaxWidth = groupPositionX + (curentWidth * signumX);
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if (Math.abs(currentMaxWidth) < Math.abs(newMaxWidth)) {
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currentMaxWidth = newMaxWidth;
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}
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float newMaxHeight = groupPositionY + curentHeight * signumY;
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if (Math.abs(currentMaxHeight) < Math.abs(newMaxHeight)) {
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currentMaxHeight = newMaxHeight;
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}
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}
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}
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}
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svgNode.setAttribute("viewBox", -Math.abs(currentMaxWidth) + " " + -Math.abs(currentMaxHeight) + " " + Math.abs(currentMaxWidth * 2) + " " + Math.abs(currentMaxHeight * 2));
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svgNode.setAttribute("width", Float.toString(mapWidth / 2));
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svgNode.setAttribute("height", Float.toString(mapHeight / 2));
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svgNode.setAttribute("preserveAspectRatio", "xMinYMin");
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}
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private static String[] getTransformUnit(NamedNodeMap groupAttributes) {
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final String value = groupAttributes.getNamedItem("transform").getNodeValue();
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final int pos = value.indexOf("translate");
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final int initTranslate = value.indexOf("(", pos);
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final int endTranslate = value.indexOf(")", pos);
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final String transate = value.substring(initTranslate + 1, endTranslate);
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return transate.split(",");
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}
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}
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/*
|
||||
* Copyright [2011] [wisemapping]
|
||||
*
|
||||
* Licensed under WiseMapping Public License, Version 1.0 (the "License").
|
||||
* It is basically the Apache License, Version 2.0 (the "License") plus the
|
||||
* "powered by wisemapping" text requirement on every single page;
|
||||
* you may not use this file except in compliance with the License.
|
||||
* You may obtain a copy of the license at
|
||||
*
|
||||
* http://www.wisemapping.org/license
|
||||
*
|
||||
* 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 com.wisemapping.exporter;
|
||||
|
||||
import com.wisemapping.model.MindMap;
|
||||
import org.apache.batik.transcoder.Transcoder;
|
||||
import org.apache.batik.transcoder.TranscoderException;
|
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import org.apache.batik.transcoder.TranscoderInput;
|
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import org.apache.batik.transcoder.TranscoderOutput;
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import org.apache.batik.transcoder.image.ImageTranscoder;
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import org.apache.batik.transcoder.image.JPEGTranscoder;
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import org.apache.batik.transcoder.image.PNGTranscoder;
|
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import org.apache.fop.svg.PDFTranscoder;
|
||||
import org.jetbrains.annotations.NotNull;
|
||||
import org.jetbrains.annotations.Nullable;
|
||||
import org.w3c.dom.*;
|
||||
import org.xml.sax.InputSource;
|
||||
import org.xml.sax.SAXException;
|
||||
|
||||
import javax.xml.bind.JAXBException;
|
||||
import javax.xml.parsers.DocumentBuilder;
|
||||
import javax.xml.parsers.DocumentBuilderFactory;
|
||||
import javax.xml.parsers.ParserConfigurationException;
|
||||
import javax.xml.stream.XMLStreamException;
|
||||
import javax.xml.transform.Transformer;
|
||||
import javax.xml.transform.TransformerException;
|
||||
import javax.xml.transform.TransformerFactory;
|
||||
import javax.xml.transform.dom.DOMSource;
|
||||
import javax.xml.transform.stream.StreamResult;
|
||||
import java.io.*;
|
||||
|
||||
public class ExporterFactory {
|
||||
private static final String GROUP_NODE_NAME = "g";
|
||||
private static final String RECT_NODE_NAME = "rect";
|
||||
private static final String IMAGE_NODE_NAME = "image";
|
||||
|
||||
|
||||
private ExporterFactory() throws ParserConfigurationException {
|
||||
|
||||
}
|
||||
|
||||
public static void export(@NotNull ExportProperties properties, @NotNull String xml, @NotNull OutputStream output, @NotNull String mapSvg) throws TranscoderException, IOException, ParserConfigurationException, SAXException, XMLStreamException, TransformerException, JAXBException, ExportException {
|
||||
final ExportFormat format = properties.getFormat();
|
||||
|
||||
final String imgPath = properties.getBaseImgPath();
|
||||
switch (format) {
|
||||
case PNG: {
|
||||
// Create a JPEG transcoder
|
||||
final Transcoder transcoder = new PNGTranscoder();
|
||||
final ExportProperties.ImageProperties imageProperties =
|
||||
(ExportProperties.ImageProperties) properties;
|
||||
final ExportProperties.ImageProperties.Size size = imageProperties.getSize();
|
||||
transcoder.addTranscodingHint(ImageTranscoder.KEY_WIDTH, size.getWidth());
|
||||
|
||||
// Create the transcoder input.
|
||||
final Document document = normalizeSvg(mapSvg, imgPath);
|
||||
final String svgString = domToString(document);
|
||||
final TranscoderInput input = new TranscoderInput(new CharArrayReader(svgString.toCharArray()));
|
||||
|
||||
TranscoderOutput trascoderOutput = new TranscoderOutput(output);
|
||||
|
||||
// Save the image.
|
||||
transcoder.transcode(input, trascoderOutput);
|
||||
break;
|
||||
}
|
||||
case JPEG: {
|
||||
// Create a JPEG transcoder
|
||||
final Transcoder transcoder = new JPEGTranscoder();
|
||||
transcoder.addTranscodingHint(JPEGTranscoder.KEY_QUALITY, new Float(.99));
|
||||
|
||||
final ExportProperties.ImageProperties imageProperties =
|
||||
(ExportProperties.ImageProperties) properties;
|
||||
final ExportProperties.ImageProperties.Size size = imageProperties.getSize();
|
||||
transcoder.addTranscodingHint(ImageTranscoder.KEY_WIDTH, size.getWidth());
|
||||
|
||||
// Create the transcoder input.
|
||||
final Document document = normalizeSvg(mapSvg, imgPath);
|
||||
final String svgString = domToString(document);
|
||||
final TranscoderInput input = new TranscoderInput(new CharArrayReader(svgString.toCharArray()));
|
||||
|
||||
TranscoderOutput trascoderOutput = new TranscoderOutput(output);
|
||||
|
||||
// Save the image.
|
||||
transcoder.transcode(input, trascoderOutput);
|
||||
break;
|
||||
}
|
||||
case PDF: {
|
||||
// Create a JPEG transcoder
|
||||
final Transcoder transcoder = new PDFTranscoder();
|
||||
|
||||
// Create the transcoder input.
|
||||
final Document document = normalizeSvg(mapSvg, imgPath);
|
||||
final String svgString = domToString(document);
|
||||
final TranscoderInput input = new TranscoderInput(new CharArrayReader(svgString.toCharArray()));
|
||||
|
||||
TranscoderOutput trascoderOutput = new TranscoderOutput(output);
|
||||
|
||||
// Save the image.
|
||||
transcoder.transcode(input, trascoderOutput);
|
||||
break;
|
||||
}
|
||||
case SVG: {
|
||||
final Document dom = normalizeSvg(mapSvg, imgPath);
|
||||
output.write(domToString(dom).getBytes("UTF-8"));
|
||||
break;
|
||||
}
|
||||
case FREEMIND: {
|
||||
final FreemindExporter exporter = new FreemindExporter();
|
||||
exporter.export(xml.getBytes(), output);
|
||||
break;
|
||||
}
|
||||
default:
|
||||
throw new UnsupportedOperationException("Export method not supported.");
|
||||
}
|
||||
}
|
||||
|
||||
private static Document normalizeSvg(@NotNull String svgXml, final String imgBaseUrl) throws XMLStreamException, ParserConfigurationException, IOException, SAXException, TransformerException {
|
||||
|
||||
final DocumentBuilder documentBuilder = getDocumentBuilder();
|
||||
svgXml = svgXml.replaceFirst("<svg ", "<svg xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\" ");
|
||||
// @Todo: This must not happen...
|
||||
svgXml = svgXml.replaceAll("NaN,", "0");
|
||||
svgXml = svgXml.replaceAll(",NaN", "0");
|
||||
|
||||
Document document;
|
||||
try {
|
||||
final Reader in = new CharArrayReader(svgXml.toCharArray());
|
||||
final InputSource is = new InputSource(in);
|
||||
|
||||
document = documentBuilder.parse(is);
|
||||
} catch (SAXException e) {
|
||||
// It must be a corrupted SVG format. Try to hack it and try again ...
|
||||
svgXml = svgXml.replaceAll("<image([^>]+)>", "<image$1/>");
|
||||
|
||||
final Reader in = new CharArrayReader(svgXml.toCharArray());
|
||||
final InputSource is = new InputSource(in);
|
||||
document = documentBuilder.parse(is);
|
||||
}
|
||||
|
||||
|
||||
fitSvg(document);
|
||||
|
||||
fixImageTagHref(document, imgBaseUrl);
|
||||
|
||||
return document;
|
||||
|
||||
}
|
||||
|
||||
private static DocumentBuilder getDocumentBuilder() throws ParserConfigurationException {
|
||||
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
|
||||
return factory.newDocumentBuilder();
|
||||
}
|
||||
|
||||
private static String domToString(@NotNull Document document) throws TransformerException {
|
||||
DOMSource domSource = new DOMSource(document);
|
||||
|
||||
// Create a string writer
|
||||
final CharArrayWriter result = new CharArrayWriter();
|
||||
|
||||
// Create the stream stream for the transform
|
||||
StreamResult stream = new StreamResult(result);
|
||||
|
||||
// Create a Transformer to serialize the document
|
||||
TransformerFactory tFactory = TransformerFactory.newInstance();
|
||||
|
||||
Transformer transformer = tFactory.newTransformer();
|
||||
transformer.setOutputProperty("indent", "yes");
|
||||
|
||||
// Transform the document to the stream stream
|
||||
transformer.transform(domSource, stream);
|
||||
|
||||
return result.toString();
|
||||
}
|
||||
|
||||
private static void fixImageTagHref(Document document, String imgBaseUrl) {
|
||||
final Node child = document.getFirstChild();
|
||||
fixImageTagHref(document, (Element) child, imgBaseUrl);
|
||||
}
|
||||
|
||||
private static void fixImageTagHref(@NotNull Document document, @NotNull Element element, String imgBaseUrl) {
|
||||
|
||||
final NodeList list = element.getChildNodes();
|
||||
|
||||
for (int i = 0; i < list.getLength(); i++) {
|
||||
final Node node = list.item(i);
|
||||
// find all groups
|
||||
if (GROUP_NODE_NAME.equals(node.getNodeName())) {
|
||||
// Must continue looking ....
|
||||
fixImageTagHref(document, (Element) node, imgBaseUrl);
|
||||
|
||||
} else if (IMAGE_NODE_NAME.equals(node.getNodeName())) {
|
||||
|
||||
Element elem = (Element) node;
|
||||
|
||||
// Cook image href ...
|
||||
final String imgUrl = elem.getAttribute("href");
|
||||
int index = imgUrl.lastIndexOf("/");
|
||||
elem.removeAttribute("href");
|
||||
if (index != -1) {
|
||||
final String iconName = imgUrl.substring(index+1);
|
||||
// Hack for backward compatibility . This can be removed in 2012. :)
|
||||
String imgPath;
|
||||
if (imgUrl.contains("images")) {
|
||||
imgPath = imgBaseUrl + "/../icons/legacy/" + iconName;
|
||||
} else {
|
||||
imgPath = imgBaseUrl + "/" + imgUrl;
|
||||
}
|
||||
elem.setAttribute("xlink:href", imgPath);
|
||||
elem.appendChild(document.createTextNode(" "));
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
private static void fitSvg(Document document) {
|
||||
// viewBox size
|
||||
int mapWidth = 1024;
|
||||
int mapHeight = 768;
|
||||
// some browser return width and heigth with precision
|
||||
float currentMaxWidth = 0;
|
||||
float currentMaxHeight = 0;
|
||||
|
||||
final Element svgNode = (Element) document.getFirstChild();
|
||||
final NodeList list = svgNode.getChildNodes();
|
||||
|
||||
for (int i = 0; i < list.getLength(); i++) {
|
||||
final Node node = list.item(i);
|
||||
// find all groups
|
||||
if (GROUP_NODE_NAME.equals(node.getNodeName())) {
|
||||
final NamedNodeMap groupAttributes = node.getAttributes();
|
||||
|
||||
final String[] transformUnit = getTransformUnit(groupAttributes);
|
||||
|
||||
int groupPositionX = Integer.parseInt(transformUnit[0].trim());
|
||||
int groupPositionY = 0;
|
||||
if (transformUnit.length > 1) {
|
||||
groupPositionY = Integer.parseInt(transformUnit[1].trim());
|
||||
}
|
||||
|
||||
int signumX = Integer.signum(groupPositionX);
|
||||
int signumY = Integer.signum(groupPositionY);
|
||||
|
||||
final NodeList groupChildren = node.getChildNodes();
|
||||
for (int idx = 0; idx < groupChildren.getLength(); idx++) {
|
||||
final Node rectNode = groupChildren.item(idx);
|
||||
float curentHeight = 0;
|
||||
float curentWidth = 0;
|
||||
|
||||
// If has a rect use the rect to calcular the real width of the topic
|
||||
if (RECT_NODE_NAME.equals(rectNode.getNodeName())) {
|
||||
final NamedNodeMap rectAttributes = rectNode.getAttributes();
|
||||
|
||||
final Node attributeHeight = rectAttributes.getNamedItem("height");
|
||||
final Node attributeWidth = rectAttributes.getNamedItem("width");
|
||||
|
||||
curentHeight = Float.valueOf(attributeHeight.getNodeValue());
|
||||
curentWidth = Float.valueOf(attributeWidth.getNodeValue());
|
||||
}
|
||||
|
||||
float newMaxWidth = groupPositionX + (curentWidth * signumX);
|
||||
if (Math.abs(currentMaxWidth) < Math.abs(newMaxWidth)) {
|
||||
currentMaxWidth = newMaxWidth;
|
||||
}
|
||||
|
||||
float newMaxHeight = groupPositionY + curentHeight * signumY;
|
||||
if (Math.abs(currentMaxHeight) < Math.abs(newMaxHeight)) {
|
||||
currentMaxHeight = newMaxHeight;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
svgNode.setAttribute("viewBox", -Math.abs(currentMaxWidth) + " " + -Math.abs(currentMaxHeight) + " " + Math.abs(currentMaxWidth * 2) + " " + Math.abs(currentMaxHeight * 2));
|
||||
svgNode.setAttribute("width", Float.toString(mapWidth / 2));
|
||||
svgNode.setAttribute("height", Float.toString(mapHeight / 2));
|
||||
svgNode.setAttribute("preserveAspectRatio", "xMinYMin");
|
||||
}
|
||||
|
||||
private static String[] getTransformUnit(NamedNodeMap groupAttributes) {
|
||||
final String value = groupAttributes.getNamedItem("transform").getNodeValue();
|
||||
final int pos = value.indexOf("translate");
|
||||
final int initTranslate = value.indexOf("(", pos);
|
||||
final int endTranslate = value.indexOf(")", pos);
|
||||
final String transate = value.substring(initTranslate + 1, endTranslate);
|
||||
return transate.split(",");
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user