org.simantics.district.region.ui/src/org/simantics/district/region/ui/handlers/RemoveRegionHandler.java

   1 package org.simantics.district.region.ui.handlers;
   2
   3 import javax.inject.Named;
   4
   5 import org.eclipse.e4.core.di.annotations.CanExecute;
   6 import org.eclipse.e4.core.di.annotations.Execute;
   7 import org.eclipse.e4.ui.model.application.ui.basic.MPart;
   8 import org.eclipse.e4.ui.services.IServiceConstants;
   9 import org.eclipse.jface.viewers.ISelection;
  10 import org.eclipse.swt.widgets.Shell;
  11 import org.simantics.Simantics;
  12 import org.simantics.db.request.Write;
  13 import org.simantics.district.region.DiagramRegions;
  14 import org.simantics.district.region.DiagramRegions.DiagramRegion;
  15 import org.simantics.utils.ui.ISelectionUtils;
  16 import org.slf4j.Logger;
  17 import org.slf4j.LoggerFactory;
  18
  19 public class RemoveRegionHandler {
  20
  21     private static final Logger LOGGER = LoggerFactory.getLogger(RemoveRegionHandler.class);
  22     public static final String COMMAND_ID = "org.simantics.district.region.ui.command.removeRegion";
  23     public static final String LABEL = "Remove Region";
  24
  25     @CanExecute
  26     public boolean canExecute() {
  27         return true;
  28     }
  29
  30     @Execute
  31     public void execute(@Named(IServiceConstants.ACTIVE_SHELL) Shell activeShell,
  32             @Named(IServiceConstants.ACTIVE_PART) MPart part,
  33             @Named(IServiceConstants.ACTIVE_SELECTION) ISelection selection) {
  34         DiagramRegion region = ISelectionUtils.filterSingleSelection(selection, DiagramRegion.class);
  35         Simantics.getSession().asyncRequest((Write) graph -> {
  36             DiagramRegions.removeRegion(graph, region.getResource());
  37         });
  38     }
  39 }