X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.diagram.svg%2Fsrc%2Forg%2Fsimantics%2Fdiagram%2Fsvg%2Fexport%2FDiagramToSVG.java;fp=bundles%2Forg.simantics.diagram.svg%2Fsrc%2Forg%2Fsimantics%2Fdiagram%2Fsvg%2Fexport%2FDiagramToSVG.java;h=636a246c9858e9760a355317b6797d272f7a09e2;hb=6a4a43b278d6819c660182eb4954524d1757e077;hp=0000000000000000000000000000000000000000;hpb=4e40f9793cc18f08f1fa6c96d9bb4f42408997b4;p=simantics%2Fplatform.git
diff --git a/bundles/org.simantics.diagram.svg/src/org/simantics/diagram/svg/export/DiagramToSVG.java b/bundles/org.simantics.diagram.svg/src/org/simantics/diagram/svg/export/DiagramToSVG.java
new file mode 100644
index 000000000..636a246c9
--- /dev/null
+++ b/bundles/org.simantics.diagram.svg/src/org/simantics/diagram/svg/export/DiagramToSVG.java
@@ -0,0 +1,216 @@
+package org.simantics.diagram.svg.export;
+
+
+import java.awt.Point;
+import java.util.concurrent.Semaphore;
+import java.util.concurrent.atomic.AtomicReference;
+
+import org.apache.batik.svggen.SVGGraphics2D;
+import org.simantics.Simantics;
+import org.simantics.db.ReadGraph;
+import org.simantics.db.Resource;
+import org.simantics.db.common.ResourceArray;
+import org.simantics.db.common.request.PossibleIndexRoot;
+import org.simantics.db.common.request.UniqueRead;
+import org.simantics.db.common.utils.NameUtils;
+import org.simantics.db.exception.DatabaseException;
+import org.simantics.db.exception.ValidationException;
+import org.simantics.db.management.ISessionContext;
+import org.simantics.db.request.Read;
+import org.simantics.diagram.elements.DiagramNodeUtil;
+import org.simantics.diagram.export.ImagePrinter;
+import org.simantics.diagram.stubs.DiagramResource;
+import org.simantics.g2d.canvas.impl.CanvasContext;
+import org.simantics.g2d.scenegraph.ICanvasSceneGraphProvider;
+import org.simantics.layer0.Layer0;
+import org.simantics.modeling.ModelingResources;
+import org.simantics.structural.stubs.StructuralResource2;
+import org.simantics.structural2.StructuralVariables;
+import org.simantics.utils.DataContainer;
+import org.simantics.utils.datastructures.Pair;
+import org.simantics.utils.page.MarginUtils.Margins;
+import org.simantics.utils.threads.ThreadUtils;
+import org.simantics.utils.threads.WorkerThread;
+
+
+public class DiagramToSVG {
+
+
+ public static String diagramToSVG(Resource diagram) {
+
+ try {
+ ImagePrinter.ImageExportPlan exportPlan = new ImagePrinter.ImageExportPlan();
+ exportPlan.margin = 0.05;
+ exportPlan.dpi = 96.0;
+ exportPlan.diagram = diagram;
+ return render(diagram,exportPlan);
+ } catch (Exception e) {
+ e.printStackTrace();
+ return "error "+ e.getMessage();
+ }
+
+
+ }
+
+ public static String diagramToSVG(Resource diagram, int width, int height) {
+
+ try {
+ ImagePrinter.ImageExportPlan exportPlan = new ImagePrinter.ImageExportPlan();
+ exportPlan.margin = 0.05;
+ exportPlan.size = new Point(width, height);
+ exportPlan.diagram = diagram;
+ return render(diagram,exportPlan);
+ } catch (Exception e) {
+ e.printStackTrace();
+ return "error "+ e.getMessage();
+ }
+
+
+ }
+
+ public static String diagramToSVG(Resource diagram, double dpi) {
+
+ try {
+ ImagePrinter.ImageExportPlan exportPlan = new ImagePrinter.ImageExportPlan();
+ exportPlan.margin = 0.05;
+ exportPlan.dpi = dpi;
+ exportPlan.diagram = diagram;
+ return render(diagram,exportPlan);
+ } catch (Exception e) {
+ e.printStackTrace();
+ return "error "+ e.getMessage();
+ }
+
+
+ }
+
+ public static String diagramToSVG(Resource diagram, ImagePrinter.ImageExportPlan exportPlan, Margins margins, SVGGraphics2D svgGenerator) {
+
+ try {
+ return render(diagram,exportPlan,margins,svgGenerator);
+ } catch (Exception e) {
+ e.printStackTrace();
+ return "error "+ e.getMessage();
+ }
+
+ }
+
+ private static String render(final Resource input, final ImagePrinter.ImageExportPlan exportPlan) throws Exception {
+ return render(input, exportPlan, null, SVGBuilder.defaultSVGGenerator());
+ }
+
+ private static String render(final Resource input, final ImagePrinter.ImageExportPlan exportPlan, Margins margins, SVGGraphics2D svgExporter) throws Exception {
+ Resource diagram = Simantics.getSession().syncRequest(new Read() {
+ @Override
+ public Resource perform(ReadGraph graph) throws DatabaseException {
+ DiagramResource DIA = DiagramResource.getInstance(graph);
+ if (graph.isInstanceOf(input, DIA.Diagram))
+ return input;
+ StructuralResource2 SR = StructuralResource2.getInstance(graph);
+ ModelingResources MOD = ModelingResources.getInstance(graph);
+ Layer0 L0 = Layer0.getInstance(graph);
+ if (graph.isInstanceOf(input, SR.Composite)) {
+ Resource possibleDiagram = graph.getPossibleObject(input, MOD.CompositeToDiagram);
+ if (possibleDiagram != null)
+ return possibleDiagram;
+ for (Resource r : graph.getObjects(input, L0.ConsistsOf)) {
+ if (graph.isInstanceOf(r, SR.Composite)) {
+ possibleDiagram = graph.getPossibleObject(input, MOD.CompositeToDiagram);
+ if (possibleDiagram != null)
+ return possibleDiagram;
+ }
+ }
+ }
+ return null;
+ }
+ });
+ if (diagram == null)
+ throw new DatabaseException("Input " + input + " cannot be resolved as diagram");
+
+
+
+
+ final WorkerThread thread = new WorkerThread("Diagram Image Painter");
+ thread.start();
+
+ final CanvasContext ctx = new CanvasContext(thread);
+ final AtomicReference sgProvider = new AtomicReference();
+ final ISessionContext sessionContext = Simantics.getSessionContext();
+ final DataContainer result = new DataContainer(null);
+ final DataContainer exception = new DataContainer(null);
+ try {
+ final Semaphore done = new Semaphore(0);
+ // IMPORTANT: Load diagram in a different thread than the canvas context thread!
+ ThreadUtils.getBlockingWorkExecutor().execute(new Runnable() {
+ @Override
+ public void run() {
+ try {
+ Pair modelAndRVI = sessionContext.getSession().syncRequest(new UniqueRead>() {
+ @Override
+ public Pair perform(ReadGraph graph) throws DatabaseException {
+ return new Pair( resolveModel(graph, exportPlan.diagram ), resolveRVI(graph, exportPlan.diagram) );
+ }
+ });
+
+ ICanvasSceneGraphProvider provider = DiagramNodeUtil.loadSceneGraphProvider(ctx, modelAndRVI.first, exportPlan.diagram, modelAndRVI.second);
+ sgProvider.set( provider );
+
+ ThreadUtils.asyncExec(thread, new Runnable() {
+ @Override
+ public void run() {
+ try {
+ SVGBuilder chassis = margins != null ?
+ new SVGBuilder(exportPlan.dpi,exportPlan.size,margins) :
+ new SVGBuilder(exportPlan.dpi,exportPlan.size,exportPlan.margin);
+
+ result.set(chassis.paint(ctx, svgExporter));
+ } catch (Exception e) {
+ exception.set(e);
+ } finally {
+ done.release();
+ }
+ }
+ });
+ } catch (DatabaseException e) {
+ exception.set(e);
+ done.release();
+ } catch (Throwable e) {
+ exception.set(new DatabaseException(e));
+ done.release();
+ } finally {
+ done.release();
+ }
+ }
+ });
+
+ done.acquire(2);
+ if (exception.get() != null)
+ throw exception.get();
+ return result.get();
+ } finally {
+ if (sgProvider.get() != null)
+ sgProvider.get().dispose();
+ ctx.dispose();
+ }
+ }
+
+ private static Resource resolveModel(ReadGraph graph, Resource diagram) throws DatabaseException {
+ ModelingResources mod = ModelingResources.getInstance(graph);
+ Resource composite = graph.getSingleObject(diagram, mod.DiagramToComposite);
+ Resource model = graph.syncRequest(new PossibleIndexRoot(composite));
+ if (model == null)
+ throw new ValidationException("no model found for composite " + NameUtils.getSafeName(graph, composite));
+ return model;
+ }
+
+
+
+ private static String resolveRVI(ReadGraph graph, Resource diagram) throws DatabaseException {
+ ModelingResources mod = ModelingResources.getInstance(graph);
+ Resource composite = graph.getSingleObject(diagram, mod.DiagramToComposite);
+ final ResourceArray compositePath = StructuralVariables.getCompositeArray(graph, composite);
+ final ResourceArray variablePath = compositePath.removeFromBeginning(1);
+ return StructuralVariables.getRVI(graph, variablePath);
+ }
+
+}