code: /*--------------------------------------------------------------*
    Copyright (C) 2006-2020 OpenSim Ltd.
  
    This file is distributed WITHOUT ANY WARRANTY. See the file
    'License' for details on this and other legal matters.
  *--------------------------------------------------------------*/
  
  package org.omnetpp.scave.actions.ui;
  
  import org.eclipse.core.runtime.CoreException;
  import org.eclipse.jface.viewers.ISelection;
  import org.omnetpp.common.ui.IconGridViewer;
  import org.omnetpp.common.ui.IconGridViewer.ViewMode;
  import org.omnetpp.scave.ScaveImages;
  import org.omnetpp.scave.ScavePlugin;
  import org.omnetpp.scave.actions.AbstractScaveAction;
  import org.omnetpp.scave.editors.ScaveEditor;
  
  /**
   * Increase the width of items in the Charts page until it makes sense, then wrap around.
   *
   * @author andras
   */
  public class SetItemWidthAction extends AbstractScaveAction {
  
      public SetItemWidthAction() {
          setText("Increase Item Width");
          setImageDescriptor(ScavePlugin.getImageDescriptor(ScaveImages.IMG_ETOOL16_SETWIDTH));
      }
  
      @Override
      protected void doRun(ScaveEditor scaveEditor, ISelection selection) throws CoreException {
          IconGridViewer viewer = scaveEditor.getChartsPage().getViewer();
          if (viewer.getViewMode() == ViewMode.ICONS) {
              int n = viewer.getNumItemsPerRow();
              if (n >= 3)
                  viewer.setNumItemsPerRow(n-1);
              else
                  viewer.setItemWidth(60);
          }
          else if (viewer.getViewMode() == ViewMode.MULTICOLUMN_LIST) {
              int n = viewer.getNumColumns();
              if (n >= 3)
                  viewer.setNumColumns(n-1);
              else
                  viewer.setColumnWidth(200);
          }
      }
  
      @Override
      protected boolean isApplicable(ScaveEditor editor, ISelection selection) {
          return true;
      }
  }
  