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

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