org.simantics.district.region.ui/src/org/simantics/district/region/ui/CreateRegionFromSelection.java

   1 package org.simantics.district.region.ui;
   2
   3 import java.awt.geom.Rectangle2D;
   4 import java.util.Set;
   5
   6 import org.eclipse.core.runtime.IProgressMonitor;
   7 import org.eclipse.core.runtime.IStatus;
   8 import org.eclipse.core.runtime.Status;
   9 import org.eclipse.e4.core.di.annotations.CanExecute;
  10 import org.eclipse.e4.core.di.annotations.Execute;
  11 import org.eclipse.e4.ui.workbench.modeling.ESelectionService;
  12 import org.eclipse.jface.dialogs.InputDialog;
  13 import org.eclipse.jface.window.Window;
  14 import org.eclipse.ui.IEditorPart;
  15 import org.eclipse.ui.progress.UIJob;
  16 import org.simantics.Simantics;
  17 import org.simantics.db.Resource;
  18 import org.simantics.db.WriteGraph;
  19 import org.simantics.db.exception.DatabaseException;
  20 import org.simantics.db.request.Write;
  21 import org.simantics.diagram.ui.DiagramModelHints;
  22 import org.simantics.district.region.DiagramRegions;
  23 import org.simantics.g2d.canvas.ICanvasContext;
  24 import org.simantics.g2d.diagram.IDiagram;
  25 import org.simantics.g2d.diagram.participant.Selection;
  26 import org.simantics.g2d.element.ElementUtils;
  27 import org.simantics.g2d.element.IElement;
  28 import org.simantics.utils.ui.workbench.WorkbenchUtils;
  29 import org.slf4j.Logger;
  30 import org.slf4j.LoggerFactory;
  31
  32 public class CreateRegionFromSelection {
  33
  34     private static final Logger LOGGER = LoggerFactory.getLogger(CreateRegionFromSelection.class);
  35
  36     @CanExecute
  37     public boolean canExecute(ESelectionService selectionService) {
  38         return selectionService.getSelection() != null;
  39     }
  40
  41     @Execute
  42     public void createRegionFromSelection() {
  43         IEditorPart activeEditor = WorkbenchUtils.getActiveEditor();
  44         ICanvasContext context = activeEditor.getAdapter(ICanvasContext.class);
  45         if (context != null) {
  46             IDiagram diagram = activeEditor.getAdapter(IDiagram.class);
  47             if (diagram != null) {
  48                 Resource diagramResource = diagram.getHint(DiagramModelHints.KEY_DIAGRAM_RESOURCE);
  49                 Selection selection = context.getAtMostOneItemOfClass(Selection.class);
  50                 Set<IElement> allSelections = selection.getAllSelections();
  51                 Rectangle2D surroundingElementBoundsOnDiagram = ElementUtils.getSurroundingElementBoundsOnDiagram(allSelections);
  52                 double[] coordinates = DiagramRegions.shapeToCoordinates(surroundingElementBoundsOnDiagram);
  53
  54                 UIJob job = new UIJob("Creating new region for diagram") {
  55
  56                     @Override
  57                     public IStatus runInUIThread(IProgressMonitor monitor) {
  58                         InputDialog d = new InputDialog(getDisplay().getActiveShell(), "Enter label for region", "Enter region label", "", null);
  59                         int status = d.open();
  60                         if (status == Window.OK) {
  61                             String label = d.getValue();
  62                             Simantics.getSession().asyncRequest(new Write() {
  63
  64                                 @Override
  65                                 public void perform(WriteGraph graph) throws DatabaseException {
  66                                     DiagramRegions.createRegionForDiagram(graph, diagramResource, label, coordinates);
  67                                 }
  68                             });
  69                         } else {
  70
  71                         }
  72                         return Status.OK_STATUS;
  73                     }
  74                 };
  75                 job.setUser(true);
  76                 job.schedule();
  77             } else {
  78                 LOGGER.warn("No diagram available for active editor {}", activeEditor);
  79             }
  80         } else {
  81             LOGGER.warn("No CanvasContext available for active editor {}", activeEditor);
  82         }
  83     }
  84 }