demo/plugins/org.argeo.demo.i18n/src/main/java/org/argeo/demo/i18n/views/SimpleTreeView.java

   1 package org.argeo.demo.i18n.views;
   2
   3 import org.argeo.demo.i18n.I18nDemoPlugin;
   4 import org.argeo.demo.i18n.providers.SimpleContentProvider;
   5 import org.argeo.demo.i18n.providers.SimpleLabelProvider;
   6 import org.argeo.demo.i18n.utils.GenericDoubleClickListener;
   7 import org.eclipse.jface.action.MenuManager;
   8 import org.eclipse.jface.viewers.ISelectionChangedListener;
   9 import org.eclipse.jface.viewers.ITreeContentProvider;
  10 import org.eclipse.jface.viewers.SelectionChangedEvent;
  11 import org.eclipse.jface.viewers.TreeViewer;
  12 import org.eclipse.swt.SWT;
  13 import org.eclipse.swt.layout.FillLayout;
  14 import org.eclipse.swt.layout.GridData;
  15 import org.eclipse.swt.layout.GridLayout;
  16 import org.eclipse.swt.widgets.Composite;
  17 import org.eclipse.swt.widgets.Menu;
  18 import org.eclipse.ui.part.ViewPart;
  19
  20 /**
  21  * Basic View to display a tree with internationalized labels
  22  */
  23
  24 public class SimpleTreeView extends ViewPart {
  25         // private final static Log log = LogFactory.getLog(SimpleTreeView.class);
  26         public final static String ID = I18nDemoPlugin.ID + ".simpleTreeView";
  27
  28         // This page widgets
  29         private TreeViewer treeViewer;
  30         private SimpleContentProvider treeContentProvider;
  31
  32         @Override
  33         public void createPartControl(Composite parent) {
  34                 parent.setLayout(new FillLayout());
  35
  36                 // Creates the tree
  37                 Composite composite = new Composite(parent, SWT.NONE);
  38                 GridLayout gl = new GridLayout(1, false);
  39                 composite.setLayout(gl);
  40
  41                 // tree viewer
  42                 treeContentProvider = new SimpleContentProvider();
  43                 treeViewer = createTreeViewer(composite, treeContentProvider);
  44
  45                 // context menu : it is completely defined in the plugin.xml file.
  46                 MenuManager menuManager = new MenuManager();
  47                 Menu menu = menuManager.createContextMenu(treeViewer.getTree());
  48                 treeViewer.getTree().setMenu(menu);
  49                 getSite().registerContextMenu(menuManager, treeViewer);
  50
  51                 getSite().setSelectionProvider(treeViewer);
  52
  53                 treeViewer.setInput(getViewSite());
  54         }
  55
  56         protected TreeViewer createTreeViewer(Composite parent,
  57                         final ITreeContentProvider treeContentProvider) {
  58
  59                 final TreeViewer tmpTreeViewer = new TreeViewer(parent, SWT.MULTI);
  60
  61                 tmpTreeViewer.getTree().setLayoutData(
  62                                 new GridData(SWT.FILL, SWT.FILL, true, true));
  63
  64                 tmpTreeViewer.setContentProvider(treeContentProvider);
  65                 tmpTreeViewer.setLabelProvider(new SimpleLabelProvider());
  66                 tmpTreeViewer
  67                                 .addSelectionChangedListener(new ISelectionChangedListener() {
  68                                         public void selectionChanged(SelectionChangedEvent event) {
  69                                                 // something can be done here
  70                                         }
  71                                 });
  72
  73                 tmpTreeViewer.addDoubleClickListener(new GenericDoubleClickListener(
  74                                 tmpTreeViewer));
  75                 return tmpTreeViewer;
  76         }
  77
  78         @Override
  79         public void setFocus() {
  80                 // Do nothing for the time being.
  81         }
  82 }