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/*****************************************************************************
* Copyright (c) 2017 CEA LIST.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Benoit Maggi (CEA LIST) - Initial API and implementation
*****************************************************************************/
package org.eclipse.papyrus.uml.export.svgextension;
import java.awt.Image;
import java.awt.image.BufferedImage;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import javax.xml.transform.OutputKeys;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;
import org.apache.batik.anim.dom.SVGDOMImplementation;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.draw2d.Graphics;
import org.eclipse.draw2d.geometry.Rectangle;
import org.eclipse.gmf.runtime.common.core.util.Log;
import org.eclipse.gmf.runtime.common.core.util.Trace;
import org.eclipse.gmf.runtime.diagram.ui.editparts.DiagramEditPart;
import org.eclipse.gmf.runtime.diagram.ui.image.PartPositionInfo;
import org.eclipse.gmf.runtime.diagram.ui.l10n.SharedImages;
import org.eclipse.gmf.runtime.diagram.ui.render.internal.DiagramUIRenderDebugOptions;
import org.eclipse.gmf.runtime.diagram.ui.render.internal.DiagramUIRenderPlugin;
import org.eclipse.gmf.runtime.draw2d.ui.render.RenderedImage;
import org.eclipse.gmf.runtime.draw2d.ui.render.awt.internal.image.ImageConverter;
import org.eclipse.gmf.runtime.draw2d.ui.render.awt.internal.svg.export.GraphicsSVG;
import org.eclipse.gmf.runtime.draw2d.ui.render.factory.RenderedImageFactory;
import org.eclipse.gmf.runtime.draw2d.ui.render.internal.RenderedImageDescriptor;
import org.eclipse.gmf.runtime.notation.Shape;
import org.eclipse.gmf.runtime.notation.View;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.papyrus.uml.export.Activator;
import org.eclipse.papyrus.uml.export.extension.AnnotateSVG;
import org.eclipse.papyrus.uml.export.svgextension.internal.OpenAPIDiagramSVGGenerator;
import org.eclipse.uml2.uml.NamedElement;
import org.w3c.dom.Element;
/**
* The Class PapyrusDiagramSVGGenerator.
*/
public class PapyrusDiagramSVGGenerator extends OpenAPIDiagramSVGGenerator {
/** The annotations. */
private List<AnnotateSVG> annotations = new ArrayList<>();
/**
* Instantiates a new papyrus diagram SVG generator.
*
* @param diagramEditPart
* the diagram edit part
* @param annotations
* the annotations
*/
public PapyrusDiagramSVGGenerator(DiagramEditPart diagramEditPart, List<AnnotateSVG> annotations) {
super(diagramEditPart);
this.annotations = annotations;
}
/** The rendered image. */
private RenderedImage renderedImage = null;
/** The svg root. */
private Element svgRoot = null;
/** The view box. */
private Rectangle viewBox = null;
/**
* @see org.eclipse.gmf.runtime.diagram.ui.render.clipboard.DiagramSVGGenerator#setUpGraphics(int, int)
*
* @param width
* @param height
* @return
*/
/*
* (non-Javadoc)
*
* @see org.eclipse.gmf.runtime.diagram.ui.render.clipboard.DiagramGenerator#
* setUpGraphics(int, int)
*/
@Override
protected Graphics setUpGraphics(int width, int height) {
viewBox = new Rectangle(0, 0, width, height);
return GraphicsSVG.getInstance(viewBox);
}
/**
* @see org.eclipse.gmf.runtime.diagram.ui.render.clipboard.DiagramSVGGenerator#getImageDescriptor(org.eclipse.draw2d.Graphics)
*
* @param g
* @return
*/
/*
* (non-Javadoc)
*
* @see org.eclipse.gmf.runtime.diagram.ui.render.clipboard.DiagramGenerator#
* getImageDescriptor(org.eclipse.draw2d.Graphics)
*/
@Override
protected ImageDescriptor getImageDescriptor(Graphics g) {
try {
Activator.log(IStatus.INFO, "Start transformation from Graphics to image descriptor");
GraphicsSVG svgG = (GraphicsSVG) g;
svgRoot = svgG.getRoot();
//////// Papyrus Specific code //////////
List<PartPositionInfo> allPartPositionInfo = this.getDiagramPartInfo();
Collections.reverse(allPartPositionInfo);// Required to have property after class
for (PartPositionInfo partPositionInfo : allPartPositionInfo) {
Element rectangle = svgG.getDocument().createElementNS(SVGDOMImplementation.SVG_NAMESPACE_URI, "rect");
if (partPositionInfo.getSemanticElement() instanceof NamedElement) {
NamedElement nameElement = (NamedElement) partPositionInfo.getSemanticElement();
rectangle.setAttributeNS(null, "id", nameElement.getName());// useful for svg debug
}
rectangle.setAttributeNS(null, "x", String.valueOf(partPositionInfo.getPartX()));
rectangle.setAttributeNS(null, "y", String.valueOf(partPositionInfo.getPartY()));
rectangle.setAttributeNS(null, "width", String.valueOf(partPositionInfo.getPartWidth()));
rectangle.setAttributeNS(null, "height", String.valueOf(partPositionInfo.getPartHeight()));
rectangle.setAttributeNS(null, "fill-opacity", "0"); // transparent
rectangle.setAttributeNS(null, "stroke-opacity", "0"); // no border
View view = partPositionInfo.getView();
if (view instanceof Shape) { // filter on shape only to avoid duplication
boolean hasAnnotation = applyAll(view, svgG, rectangle);
if (hasAnnotation) {
svgRoot.appendChild(rectangle);
}
}
}
/////////////////////////
ByteArrayOutputStream os = new ByteArrayOutputStream(5000); // 5K
// buffer
stream(os);
os.close();
setRenderedImage(RenderedImageFactory.getInstance(os.toByteArray()));
return RenderedImageDescriptor
.createFromRenderedImage(getRenderedImage());
} catch (IOException ex) {
Log.error(DiagramUIRenderPlugin.getInstance(), IStatus.ERROR, ex
.getMessage(), ex);
}
return null;
}
/**
* Apply all.
*
* @param view
* the view
* @param svgG
* the svg G
* @param rectangle
* the rectangle
* @return true, if successful
*/
public boolean applyAll(View view, GraphicsSVG svgG, Element rectangle) {
boolean res = false;
for (AnnotateSVG annotateSVG : annotations) {
res = res || annotateSVG.addAnnotation(view, svgG, rectangle);
}
return true;
}
/**
* Writes the SVG Model out to a file.
*
* @param outputStream
* output stream to store the SVG Model
*/
@Override
public void stream(OutputStream outputStream) {
try {
// Define the view box
svgRoot.setAttributeNS(null, "viewBox", String.valueOf(viewBox.x) + " " + //$NON-NLS-1$ //$NON-NLS-2$
String.valueOf(viewBox.y) + " " + //$NON-NLS-1$
String.valueOf(viewBox.width) + " " + //$NON-NLS-1$
String.valueOf(viewBox.height));
// Write the document to the stream
Transformer transformer = TransformerFactory.newInstance().newTransformer();
transformer.setOutputProperty(OutputKeys.METHOD, "xml"); //$NON-NLS-1$
transformer.setOutputProperty(OutputKeys.ENCODING, "UTF-8"); //$NON-NLS-1$
transformer.setOutputProperty(OutputKeys.INDENT, "yes"); //$NON-NLS-1$
DOMSource source = new DOMSource(svgRoot);
StreamResult result = new StreamResult(outputStream);
transformer.transform(source, result);
} catch (Exception ex) {
Log.error(DiagramUIRenderPlugin.getInstance(), IStatus.ERROR, ex.getMessage(), ex);
}
}
/**
* @see org.eclipse.gmf.runtime.diagram.ui.render.clipboard.DiagramSVGGenerator#createAWTImageForParts(java.util.List, org.eclipse.swt.graphics.Rectangle)
*
* @param editparts
* @param sourceRect
* @return
*/
/*
* (non-Javadoc)
*
* @see org.eclipse.gmf.runtime.diagram.ui.internal.clipboard.DiagramGenerator#
* createAWTImageForParts(java.util.List)
*/
@Override
public Image createAWTImageForParts(List editparts, org.eclipse.swt.graphics.Rectangle sourceRect) {
createSWTImageDescriptorForParts(editparts, sourceRect);
if (getRenderedImage() != null) {
try {
BufferedImage bufImg = getRenderedImage().getAdapter(BufferedImage.class);
if (bufImg == null)
bufImg = ImageConverter.convert(getRenderedImage().getSWTImage());
return bufImg;
} catch (Error e) {
// log the Error but allow execution to continue
Trace.catching(DiagramUIRenderPlugin.getInstance(), DiagramUIRenderDebugOptions.EXCEPTIONS_THROWING,
getClass(), "createAWTImageForParts() failed to generate image", //$NON-NLS-1$
e);
return ImageConverter.convert(SharedImages.get(SharedImages.IMG_ERROR));
} catch (Exception ex) {
// log the Exception but allow execution to continue
Trace.catching(DiagramUIRenderPlugin.getInstance(), DiagramUIRenderDebugOptions.EXCEPTIONS_THROWING,
getClass(), "createAWTImageForParts() failed to generate image", //$NON-NLS-1$
ex);
return ImageConverter.convert(SharedImages.get(SharedImages.IMG_ERROR));
}
}
return ImageConverter.convert(SharedImages.get(SharedImages.IMG_ERROR));
}
/**
* Gets the rendered image.
*
* @return Returns the rendered image created by previous call to
* createSWTImageDescriptorForParts
*/
@Override
public RenderedImage getRenderedImage() {
return renderedImage;
}
/**
* Sets the rendered image.
*
* @param renderedImage
* the new rendered image
*/
private void setRenderedImage(RenderedImage renderedImage) {
this.renderedImage = renderedImage;
}
}
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