X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.modeling%2Fsrc%2Forg%2Fsimantics%2Fmodeling%2FSCLScenegraph.java;h=358d50fb4b4c9ac6f5f673ac3836bddf6f5ee383;hb=06ee0c4c71cd9e372969da1570e7fcac2c4397a5;hp=33d7f06290e109e69fdc4ceff7afb00c8b7cd00a;hpb=0ae2b770234dfc3cbb18bd38f324125cf0faca07;p=simantics%2Fplatform.git

diff --git a/bundles/org.simantics.modeling/src/org/simantics/modeling/SCLScenegraph.java b/bundles/org.simantics.modeling/src/org/simantics/modeling/SCLScenegraph.java
index 33d7f0629..358d50fb4 100644
--- a/bundles/org.simantics.modeling/src/org/simantics/modeling/SCLScenegraph.java
+++ b/bundles/org.simantics.modeling/src/org/simantics/modeling/SCLScenegraph.java
@@ -1,10 +1,28 @@
 package org.simantics.modeling;
 
+import java.awt.Dimension;
+import java.awt.RenderingHints;
+import java.awt.RenderingHints.Key;
+import java.awt.geom.AffineTransform;
+import java.awt.geom.Rectangle2D;
+import java.io.ByteArrayOutputStream;
+import java.io.OutputStreamWriter;
 import java.util.ArrayList;
 import java.util.Collection;
+import java.util.HashMap;
 import java.util.List;
 import java.util.Set;
+import java.util.UUID;
 
+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.dom.GenericDOMImplementation;
+import org.apache.batik.svggen.SVGGeneratorContext;
+import org.apache.batik.svggen.SVGGraphics2D;
 import org.simantics.db.Resource;
 import org.simantics.db.exception.DatabaseException;
 import org.simantics.diagram.elements.DiagramNodeUtil;
@@ -20,7 +38,10 @@ import org.simantics.g2d.scenegraph.ICanvasSceneGraphProvider;
 import org.simantics.g2d.utils.CanvasUtils;
 import org.simantics.scenegraph.ParentNode;
 import org.simantics.scenegraph.g2d.G2DParentNode;
+import org.simantics.scenegraph.g2d.G2DRenderingHints;
 import org.simantics.scenegraph.g2d.G2DSceneGraph;
+import org.simantics.scenegraph.g2d.IG2DNode;
+import org.simantics.scenegraph.g2d.IG2DNodeVisitor;
 import org.simantics.scenegraph.g2d.events.command.Commands;
 import org.simantics.scenegraph.g2d.nodes.BackgroundNode;
 import org.simantics.scenegraph.g2d.nodes.BoundsNode;
@@ -28,13 +49,23 @@ import org.simantics.scenegraph.g2d.nodes.ConnectionNode;
 import org.simantics.scenegraph.g2d.nodes.DataNode;
 import org.simantics.scenegraph.g2d.nodes.DecorationSVGNode;
 import org.simantics.scenegraph.g2d.nodes.NavigationNode;
+import org.simantics.scenegraph.g2d.nodes.SVGNode;
 import org.simantics.scenegraph.g2d.nodes.SingleElementNode;
+import org.simantics.scenegraph.g2d.nodes.spatial.RTreeNode;
 import org.simantics.scenegraph.utils.NodeUtil;
 import org.simantics.trend.impl.ItemNode;
 import org.simantics.utils.threads.ThreadUtils;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.w3c.dom.DOMImplementation;
+import org.w3c.dom.Document;
+import org.w3c.dom.Element;
+import org.w3c.dom.NodeList;
 
 public class SCLScenegraph {
-	
+
+	private static final Logger LOGGER = LoggerFactory.getLogger(SCLScenegraph.class);
+
 	public static ICanvasSceneGraphProvider getICanvasSceneGraphProvider(Resource model, Resource diagram, String diagramRVI) throws DatabaseException, InterruptedException {
 		ICanvasSceneGraphProvider provider = DiagramNodeUtil.loadSceneGraphProvider(model, diagram, diagramRVI);
 		return provider;
@@ -44,13 +75,6 @@ public class SCLScenegraph {
 		provider.dispose();
 	}
 	
-	//public static Resource getDiagramRuntime(Resource ) 
-	
-	
-//	public static String getNodeTransform(ICanvasContext ctx, String name) throws DatabaseException, InterruptedException {
-//		return getNodeTransform(ctx, name);
-//	}
-	
 	public static String getNodeTransform(ICanvasContext ctx, String name) {
 		
 		Set<TextNode> texts = NodeUtil.collectNodes(ctx.getSceneGraph(), TextNode.class);
@@ -234,7 +258,7 @@ public class SCLScenegraph {
         }
     }
     
-     public static boolean copyPaste (final ICanvasContext source_ctx, final ICanvasContext target_ctx, List<Resource> modules) throws DatabaseException {
+    public static boolean copyPaste (final ICanvasContext source_ctx, final ICanvasContext target_ctx, List<Resource> modules) throws DatabaseException {
     	
     	IDiagram idiagram = source_ctx.getDefaultHintContext().getHint(DiagramHints.KEY_DIAGRAM);
 
@@ -286,5 +310,259 @@ public class SCLScenegraph {
 		return true;
     }
 
+	static class Generator extends SVGGraphics2D {
+
+		int elemLevel = 0;
+		String newElementId = null;
+		ArrayList<Element> elements = new ArrayList<Element>();
+
+		public static final String svgNS = "http://www.w3.org/2000/svg";
+
+		public Generator(SVGGeneratorContext ctx, boolean joku) {
+			super(ctx, joku);
+		}
+
+		public Generator(Document document) {
+			super(document);
+		}
+
+		@Override
+		public Element getRoot() {
+			Element root = super.getRoot();
+			for(Element e : elements) {
+				root.appendChild(e);
+			}
+			return root;
+		}
+
+		@Override
+		public void setRenderingHint(Key arg0, Object arg1) {
+			if(G2DRenderingHints.KEY_BEGIN_ELEMENT == arg0) {
+				elemLevel++;
+			}
+			if(G2DRenderingHints.KEY_ELEMENT_ID == arg0) {
+				if(arg1 != null)
+					newElementId = arg1.toString();
+				else
+					newElementId = UUID.randomUUID().toString();
+			}
+			if(G2DRenderingHints.KEY_END_ELEMENT == arg0) {
+				elemLevel--;
+				if(elemLevel == 0) {
+					Element group = getDOMFactory().createElement(SVG_G_TAG);
+					//Element group = getDOMFactory().createElementNS(SVG_NAMESPACE_URI, SVG_G_TAG);
+					group.setAttributeNS(null, "id", newElementId);
+					group.setAttributeNS(null, "class", arg1.toString());
+					getRoot(group);
+					elements.add(group);
+				}
+			}
+			super.setRenderingHint(arg0, arg1);
+		}
+
+	}
+
+	public static Element renderSVGNode(IG2DNode node) {
+
+		// Get a DOMImplementation.
+		DOMImplementation domImpl = GenericDOMImplementation.getDOMImplementation();
+
+		// Create an instance of org.w3c.dom.Document.
+		String svgNS = "http://www.w3.org/2000/svg";
+		Document document = domImpl.createDocument(svgNS, "svg", null);
+
+		SVGGeneratorContext ctx = SVGGeneratorContext.createDefault(document);
+		ctx.setComment(null);
+
+		// Create an instance of the SVG Generator.
+		SVGGraphics2D svgGenerator = new Generator(ctx, false);
+
+		try {
+
+			svgGenerator.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
+			svgGenerator.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
+			svgGenerator.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
+
+			node.render(svgGenerator);
+
+		} catch (Throwable t) {
+			LOGGER.error("Problems rendering scene graph to SVG", t);
+		}
+
+		return svgGenerator.getRoot();
+	}
+
+	public static String printSVGDocument(Element doce) {
+
+		StringBuilder result = new StringBuilder();
+
+		NodeList nl =  doce.getChildNodes();
+
+		for(int i=0;i<nl.getLength();i++) {
+
+			ByteArrayOutputStream os = new ByteArrayOutputStream();
+
+			try {
+
+				TransformerFactory tf = TransformerFactory.newInstance();
+				Transformer transformer = tf.newTransformer();
+				transformer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "yes");
+				transformer.setOutputProperty(OutputKeys.STANDALONE, "no");
+				transformer.setOutputProperty(OutputKeys.METHOD, "xml");
+				transformer.setOutputProperty(OutputKeys.INDENT, "yes");
+				transformer.setOutputProperty(OutputKeys.ENCODING, "UTF-8");
+				transformer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "4");
+
+				transformer.transform(new DOMSource(nl.item(i)), 
+						new StreamResult(new OutputStreamWriter(os, "UTF-8")));
+
+				os.flush();
+				os.close();
+
+			} catch (Throwable t) {
+				LOGGER.error("Problems formatting SVGDocument to text.", t);
+			}
+
+			result.append(new String(os.toByteArray()));
+
+		}
+
+		return result.toString();
+
+	}
+
+	public static String renderSVG(ICanvasContext ctx) {
+
+		// Get a DOMImplementation.
+		DOMImplementation domImpl = GenericDOMImplementation.getDOMImplementation();
+
+		// Create an instance of org.w3c.dom.Document.
+		String svgNS = "http://www.w3.org/2000/svg";
+		Document document = domImpl.createDocument(svgNS, "svg", null);
+
+		// Create an instance of the SVG Generator.
+		SVGGraphics2D svgGenerator = new Generator(document);
+
+		StringBuilder b = new StringBuilder();
+
+		try {
+
+			G2DSceneGraph sg = ctx.getSceneGraph();
+			G2DParentNode root = (G2DParentNode) sg.getRootNode();
+
+			// rtree is the actual content of the diagram
+			RTreeNode rtree = NodeUtil.getNearestChildByClass(root, RTreeNode.class);
+			Rectangle2D rtreeBounds = NodeUtil.getLocalBounds(rtree);
+
+			// nav is a node that has zooming functionalities
+			NavigationNode nav = NodeUtil.getNearestChildByClass(root, NavigationNode.class);
+			nav.setZoomEnabled(true);
+
+			// fit view with the contents of rtreeBounds
+			nav.zoomTo(rtreeBounds);
+
+			// get the bounds of the content
+			Rectangle2D content = NodeUtil.getLocalBounds(nav);
+
+			svgGenerator.scale(3,3);
+
+			// translate svgGenerator to the x and y coordinates of current content
+			svgGenerator.translate(-1 * content.getX(), (-1 * content.getY()));
+
+			Rectangle2D destination = new Rectangle2D.Double(0,0,1000,1000);
+			double sx = destination.getWidth() / content.getWidth();
+			double sy = destination.getHeight() / content.getHeight();
+			double scale = sx < sy ? sx : sy;
+
+			// Set svgCanvasSize to the given size parameters
+			svgGenerator.setSVGCanvasSize(new Dimension((int)(scale * content.getWidth()), (int)(scale * content.getHeight())));
+			svgGenerator.setClip(content);
+
+			double trX = -1 * content.getX();
+			double trY = -1 * content.getY();
+
+			b.append("<svg width=\"100%\" height=\"100%\" stroke=\"black\"><g transform=\"translate(").append(trX).append(' ').append(trY).append(")\">");
+
+			IG2DNodeVisitor visitor = new IG2DNodeVisitor() {
+
+				int indent = 0;
+
+				HashMap<IG2DNode,Integer> enters = new HashMap<>();
+
+				@Override
+				public void enter(IG2DNode node) {
+					indent++;
+					if(node instanceof ConnectionNode) {
+						Element doc = renderSVGNode((IG2DNode)node);
+						String svg = printSVGDocument(doc);
+						b.append(svg);
+					} else if (node instanceof SVGNode) {
+						SVGNode svg = (SVGNode)node;
+						b.append(svg.getSVGText());
+					} else if (node instanceof G2DParentNode) {
+						AffineTransform at = node.getTransform();
+						if(node instanceof SingleElementNode) {
+							SingleElementNode sen = (SingleElementNode)node;
+							if(sen.getKey() != null) {
+								String key = sen.getKey().toString();
+								b.append("\n<g class=\"definedElement\" id=\"" + key + "\">");
+							}
+						}
+						if(!at.isIdentity()) {
+							if(at.getScaleX() == 1.0 && at.getScaleY() == 1.0 && at.getShearX() == 0.0 && at.getShearY() == 0.0) {
+								String m = "translate(" + at.getTranslateX() + " " + at.getTranslateY() + ")";
+								b.append("\n<g transform=\"" + m + "\">");
+							} else {
+								double[] ds = new double[6];
+								at.getMatrix(ds);
+								String m = "matrix(" + ds[0] + " " + ds[1] + " " + ds[2] + " " + ds[3] + " " + ds[4] + " " + ds[5] + ")";
+								b.append("\n<g transform=\"" + m + "\">");
+							}
+						}
+					}
+
+					enters.put(node, b.length());
+
+				}
+
+				@Override
+				public void leave(IG2DNode node) {
+					if(node instanceof ConnectionNode || node instanceof SVGNode) {
+						// We are done
+					} else if (node instanceof G2DParentNode) {
+						AffineTransform at = node.getTransform();
+						if(!at.isIdentity()) {
+							b.append("</g>");
+						}
+						if(node instanceof SingleElementNode) {
+							SingleElementNode sen = (SingleElementNode)node;
+							if(sen.getKey() != null) {
+								int enterLength = enters.get(node);
+								if(b.length() == enterLength) {
+									Element doc = renderSVGNode((IG2DNode)node);
+									String svg = printSVGDocument(doc);
+									b.append(svg);
+								}
+								b.append("</g>");
+							}
+						}
+					}
+					indent --;
+				}
+
+			};
+			sg.accept(visitor);
+
+		} catch (Throwable t) {
+			LOGGER.error("Problems rendering canvas context to SVG", t);
+		}
+
+		b.append("</g></svg>");
+		//System.err.println(" == FINAL RESULT == ");
+		//System.err.println(b);
+		return b.toString();
+
+	}
+
 
 }
\ No newline at end of file