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.db.ReadGraph;
  32 import org.simantics.db.Resource;
  33 import org.simantics.db.WriteGraph;
  34 import org.simantics.db.common.ResourceArray;
  35 import org.simantics.db.common.request.IndexRoot;
  36 import org.simantics.db.common.request.WriteRequest;
  37 import org.simantics.db.exception.DatabaseException;
  38 import org.simantics.db.request.Read;
  39 import org.simantics.g2d.canvas.ICanvasContext;
  40 import org.simantics.g2d.participant.MouseUtil;
  41 import org.simantics.g2d.participant.MouseUtil.MouseInfo;
  42 import org.simantics.modeling.ModelingResources;
  43 import org.simantics.scl.commands.Commands;
  44 import org.simantics.structural.stubs.StructuralResource2;
  45 import org.simantics.ui.SimanticsUI;
  46 import org.simantics.ui.workbench.IResourceEditorInput;
  47 import org.simantics.ui.workbench.ResourceEditorInput;
  48 import org.simantics.utils.FileUtils;
  49 import org.simantics.utils.ui.ErrorLogger;
  50 import org.simantics.utils.ui.workbench.WorkbenchUtils;
  51
  52 public class ImportSVGPNG {
  53
  54     @Execute
  55     public void execute(@Named(IServiceConstants.ACTIVE_PART) MPart part) {
  56         if (part == null)
  57             return;
  58
  59         IWorkbenchPart ap;
  60         Object possibleEditor = part.getObject();
  61         if (possibleEditor != null && possibleEditor instanceof CompatibilityEditor) {
  62             CompatibilityEditor editor = (CompatibilityEditor) possibleEditor;
  63             ap = editor.getPart();
  64         } else {
  65             // Fallback for getting active editor part
  66             ap = WorkbenchUtils.getActiveWorkbenchPart();
  67         }
  68
  69         IEditorPart viewer = null;
  70         if (ap instanceof MultiPageEditorPart) {
  71             MultiPageEditorPart rfe = (MultiPageEditorPart) ap;
  72             IResourceEditorInput in = (ResourceEditorInput) rfe.getEditorInput();
  73             final ResourceArray ra = in.getResourceArray();
  74             ResourceArray symbolEditorInput;
  75             try {
  76                 symbolEditorInput = SimanticsUI.getSession().syncRequest(new Read<ResourceArray>() {
  77                     @Override
  78                     public ResourceArray perform(ReadGraph graph) throws DatabaseException {
  79                         StructuralResource2 sr = StructuralResource2.getInstance(graph);
  80                         ModelingResources mr = ModelingResources.getInstance(graph);
  81                         Resource symbol = graph.getPossibleObject(ra.resources[0], mr.ComponentTypeToSymbol);
  82                         Resource definedBy = symbol != null ? graph.getPossibleObject(symbol, sr.IsDefinedBy) : null;
  83                         ResourceArray result = definedBy != null ? new ResourceArray(definedBy) : ResourceArray.EMPTY;
  84                         return result;
  85                     }
  86                 });
  87
  88                 IEditorPart[] eps = rfe.findEditors(new ResourceEditorInput("org.simantics.modeling.ui.symbolEditor", symbolEditorInput));
  89                 if (eps.length == 0) {
  90                     System.out.println("symbol editor part not found from multi page editor part: " + ap);
  91                     return;
  92                 }
  93                 viewer = eps[0];
  94             } catch (DatabaseException e) {
  95                 e.printStackTrace();
  96                 return;
  97             }
  98         } else if (ap instanceof IEditorPart) {
  99             viewer = (IEditorPart) ap;
 100         }
 101         ICanvasContext ctx = (ICanvasContext) viewer.getAdapter(ICanvasContext.class);
 102         if (ctx == null) {
 103             System.out.println("No canvas context");
 104             return;
 105         }
 106         MouseInfo minfo = ctx.getSingleItem(MouseUtil.class).getMousePressedInfo(0);
 107         if(minfo == null) {
 108             System.out.println("No mouse info");
 109             return;
 110         }
 111         final Point2D mpos = minfo.canvasPosition;
 112         IResourceEditorInput input = (IResourceEditorInput)viewer.getEditorInput();
 113         Resource composite = input.getResource();
 114
 115         addSVG(mpos.getX(), mpos.getY(), composite);
 116     }
 117
 118     public static void addSVG(final double mposX, final double mposY, final Resource composite) {
 119
 120         Shell shell = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell();
 121
 122         FileDialog dialog = new FileDialog(shell);
 123         dialog.setText("Choose an image to be imported");
 124         dialog.setFilterExtensions(new String[] {"*.svg", "*.png"});
 125
 126         final String filename = dialog.open();
 127         if(filename == null)
 128             return;
 129
 130         File file = new File(filename);
 131         try {
 132             final byte[] data = FileUtils.readFile(file);
 133
 134             SimanticsUI.getSession().asyncRequest(new WriteRequest() {
 135
 136                 @Override
 137                 public void perform(WriteGraph g) throws DatabaseException {
 138                     Commands.get(g, "Simantics/Diagram/createSVGElement")
 139                             .execute(g, g.syncRequest(new IndexRoot(composite)),
 140                                      composite, suffix(filename), data, mposX, mposY);
 141                 }
 142
 143             });
 144         } catch (FileNotFoundException e) {
 145             ErrorLogger.defaultLogError(e);
 146         } catch (IOException e) {
 147             ErrorLogger.defaultLogError(e);
 148         }
 149
 150         return;
 151
 152     }
 153
 154     private static String suffix(String fileName) {
 155         int len = fileName.length();
 156         if(len < 3) return null;
 157         else return fileName.substring(len-3,len).toLowerCase();
 158     }
 159
 160 }