bundles/org.simantics.modeling.ui/src/org/simantics/modeling/ui/actions/e4/ImportSVGPNG.java

   1 /*******************************************************************************
   2  * Copyright (c) 2007, 2010 Association for Decentralized Information Management
   3  * in Industry THTH ry.
   4  * All rights reserved. This program and the accompanying materials
   5  * are made available under the terms of the Eclipse Public License v1.0
   6  * which accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors:
  10  *     VTT Technical Research Centre of Finland - initial API and implementation
  11  *******************************************************************************/
  12 package org.simantics.modeling.ui.actions.e4;
  13
  14 import java.awt.geom.Point2D;
  15 import java.io.File;
  16 import java.io.FileNotFoundException;
  17 import java.io.IOException;
  18
  19 import javax.inject.Named;
  20
  21 import org.eclipse.e4.core.di.annotations.Execute;
  22 import org.eclipse.e4.ui.model.application.ui.basic.MPart;
  23 import org.eclipse.e4.ui.services.IServiceConstants;
  24 import org.eclipse.swt.widgets.FileDialog;
  25 import org.eclipse.swt.widgets.Shell;
  26 import org.eclipse.ui.IEditorPart;
  27 import org.eclipse.ui.IWorkbenchPart;
  28 import org.eclipse.ui.PlatformUI;
  29 import org.eclipse.ui.internal.e4.compatibility.CompatibilityEditor;
  30 import org.eclipse.ui.part.MultiPageEditorPart;
  31 import org.simantics.Simantics;
  32 import org.simantics.db.ReadGraph;
  33 import org.simantics.db.Resource;
  34 import org.simantics.db.WriteGraph;
  35 import org.simantics.db.common.ResourceArray;
  36 import org.simantics.db.common.request.IndexRoot;
  37 import org.simantics.db.common.request.WriteRequest;
  38 import org.simantics.db.exception.DatabaseException;
  39 import org.simantics.db.request.Read;
  40 import org.simantics.diagram.synchronization.IModifiableSynchronizationContext;
  41 import org.simantics.diagram.synchronization.SynchronizationHints;
  42 import org.simantics.diagram.synchronization.graph.GraphSynchronizationHints;
  43 import org.simantics.diagram.synchronization.graph.layer.GraphLayerManager;
  44 import org.simantics.g2d.canvas.ICanvasContext;
  45 import org.simantics.g2d.diagram.IDiagram;
  46 import org.simantics.g2d.participant.MouseUtil;
  47 import org.simantics.g2d.participant.MouseUtil.MouseInfo;
  48 import org.simantics.modeling.ModelingResources;
  49 import org.simantics.scl.commands.Commands;
  50 import org.simantics.structural.stubs.StructuralResource2;
  51 import org.simantics.ui.workbench.IResourceEditorInput;
  52 import org.simantics.ui.workbench.ResourceEditorInput;
  53 import org.simantics.utils.FileUtils;
  54 import org.simantics.utils.ui.ErrorLogger;
  55 import org.simantics.utils.ui.workbench.WorkbenchUtils;
  56
  57 public class ImportSVGPNG {
  58
  59     @Execute
  60     public void execute(@Named(IServiceConstants.ACTIVE_PART) MPart part) {
  61         if (part == null)
  62             return;
  63
  64         IWorkbenchPart ap;
  65         Object possibleEditor = part.getObject();
  66         if (possibleEditor != null && possibleEditor instanceof CompatibilityEditor) {
  67             CompatibilityEditor editor = (CompatibilityEditor) possibleEditor;
  68             ap = editor.getPart();
  69         } else {
  70             // Fallback for getting active editor part
  71             ap = WorkbenchUtils.getActiveWorkbenchPart();
  72         }
  73
  74         IEditorPart viewer = null;
  75         if (ap instanceof MultiPageEditorPart) {
  76             MultiPageEditorPart rfe = (MultiPageEditorPart) ap;
  77             IResourceEditorInput in = (ResourceEditorInput) rfe.getEditorInput();
  78             final ResourceArray ra = in.getResourceArray();
  79             ResourceArray symbolEditorInput;
  80             try {
  81                 symbolEditorInput = Simantics.getSession().syncRequest(new Read<ResourceArray>() {
  82                     @Override
  83                     public ResourceArray perform(ReadGraph graph) throws DatabaseException {
  84                         StructuralResource2 sr = StructuralResource2.getInstance(graph);
  85                         ModelingResources mr = ModelingResources.getInstance(graph);
  86                         Resource symbol = graph.getPossibleObject(ra.resources[0], mr.ComponentTypeToSymbol);
  87                         Resource definedBy = symbol != null ? graph.getPossibleObject(symbol, sr.IsDefinedBy) : null;
  88                         ResourceArray result = definedBy != null ? new ResourceArray(definedBy) : ResourceArray.EMPTY;
  89                         return result;
  90                     }
  91                 });
  92
  93                 IEditorPart[] eps = rfe.findEditors(new ResourceEditorInput("org.simantics.modeling.ui.symbolEditor", symbolEditorInput)); //$NON-NLS-1$
  94                 if (eps.length == 0) {
  95                     System.out.println("symbol editor part not found from multi page editor part: " + ap); //$NON-NLS-1$
  96                     return;
  97                 }
  98                 viewer = eps[0];
  99             } catch (DatabaseException e) {
 100                 e.printStackTrace();
 101                 return;
 102             }
 103         } else if (ap instanceof IEditorPart) {
 104             viewer = (IEditorPart) ap;
 105         }
 106         ICanvasContext ctx = (ICanvasContext) viewer.getAdapter(ICanvasContext.class);
 107         if (ctx == null) {
 108             System.out.println("No canvas context"); //$NON-NLS-1$
 109             return;
 110         }
 111         MouseInfo minfo = ctx.getSingleItem(MouseUtil.class).getMousePressedInfo(0);
 112         if(minfo == null) {
 113             System.out.println("No mouse info"); //$NON-NLS-1$
 114             return;
 115         }
 116         final Point2D mpos = minfo.canvasPosition;
 117         IResourceEditorInput input = (IResourceEditorInput)viewer.getEditorInput();
 118         Resource composite = input.getResource();
 119
 120         IDiagram idiagram = viewer.getAdapter(IDiagram.class);
 121
 122         addSVG(mpos.getX(), mpos.getY(), composite, idiagram);
 123     }
 124
 125     public static void addSVG(final double mposX, final double mposY, final Resource composite, IDiagram idiagram) {
 126
 127         Shell shell = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell();
 128
 129         FileDialog dialog = new FileDialog(shell);
 130         dialog.setText(Messages.ImportSVGPNG_ChooseImportImage);
 131         dialog.setFilterExtensions(new String[] {"*.svg", "*.png"}); //$NON-NLS-1$ //$NON-NLS-2$
 132
 133         final String filename = dialog.open();
 134         if(filename == null)
 135             return;
 136
 137         File file = new File(filename);
 138         try {
 139             final byte[] data = FileUtils.readFile(file);
 140
 141             Simantics.getSession().asyncRequest(new WriteRequest() {
 142
 143                 @Override
 144                 public void perform(WriteGraph g) throws DatabaseException {
 145                     Object svg = Commands.get(g, "Simantics/Diagram/createSVGElementR") //$NON-NLS-1$
 146                             .execute(g, g.syncRequest(new IndexRoot(composite)),
 147                                      composite, suffix(filename), data, mposX, mposY);
 148
 149                     if (svg != null && svg instanceof Resource) {
 150                         Resource resource = (Resource) svg;
 151                         // 7. Put the element on all the currently active layers if possible.
 152                         IModifiableSynchronizationContext context = idiagram.getHint(SynchronizationHints.CONTEXT);
 153                         GraphLayerManager glm = context.get(GraphSynchronizationHints.GRAPH_LAYER_MANAGER);
 154                         if (glm != null) {
 155                             glm.removeFromAllLayers(g, resource);
 156                             glm.putElementOnVisibleLayers(idiagram, g, resource);
 157                         }
 158                     }
 159                 }
 160
 161             });
 162         } catch (FileNotFoundException e) {
 163             ErrorLogger.defaultLogError(e);
 164         } catch (IOException e) {
 165             ErrorLogger.defaultLogError(e);
 166         }
 167
 168         return;
 169
 170     }
 171
 172     private static String suffix(String fileName) {
 173         int len = fileName.length();
 174         if(len < 3) return null;
 175         else return fileName.substring(len-3,len).toLowerCase();
 176     }
 177
 178 }