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.apache.commons.logging.Log;
   4 import org.apache.commons.logging.LogFactory;
   5 import org.argeo.demo.i18n.I18nDemoPlugin;
   6 import org.argeo.demo.i18n.providers.SimpleContentProvider;
   7 import org.argeo.demo.i18n.providers.SimpleLabelProvider;
   8 import org.argeo.demo.i18n.utils.GenericDoubleClickListener;
   9 import org.eclipse.jface.action.MenuManager;
  10 import org.eclipse.jface.viewers.ISelectionChangedListener;
  11 import org.eclipse.jface.viewers.ITreeContentProvider;
  12 import org.eclipse.jface.viewers.SelectionChangedEvent;
  13 import org.eclipse.jface.viewers.TreeViewer;
  14 import org.eclipse.swt.SWT;
  15 import org.eclipse.swt.layout.FillLayout;
  16 import org.eclipse.swt.layout.GridData;
  17 import org.eclipse.swt.layout.GridLayout;
  18 import org.eclipse.swt.widgets.Composite;
  19 import org.eclipse.swt.widgets.Menu;
  20 import org.eclipse.ui.part.ViewPart;
  21
  22 /**
  23  * Basic View to display a tree with internationalized labels
  24  */
  25
  26 public class SimpleTreeView extends ViewPart {
  27         private final static Log log = LogFactory.getLog(SimpleTreeView.class);
  28
  29         public final static String ID = I18nDemoPlugin.ID + ".simpleTreeView";
  30
  31         // This page widgets
  32         private TreeViewer treeViewer;
  33         private SimpleContentProvider treeContentProvider;
  34
  35         @Override
  36         public void createPartControl(Composite parent) {
  37                 parent.setLayout(new FillLayout());
  38
  39                 // Creates the tree
  40                 Composite composite = new Composite(parent, SWT.NONE);
  41                 GridLayout gl = new GridLayout(1, false);
  42                 composite.setLayout(gl);
  43
  44                 // tree viewer
  45                 treeContentProvider = new SimpleContentProvider();
  46                 treeViewer = createTreeViewer(composite, treeContentProvider);
  47
  48                 // context menu : it is completely defined in the plugin.xml file.
  49                 MenuManager menuManager = new MenuManager();
  50                 Menu menu = menuManager.createContextMenu(treeViewer.getTree());
  51                 treeViewer.getTree().setMenu(menu);
  52                 getSite().registerContextMenu(menuManager, treeViewer);
  53
  54                 getSite().setSelectionProvider(treeViewer);
  55
  56                 treeViewer.setInput(getViewSite());
  57         }
  58
  59         protected TreeViewer createTreeViewer(Composite parent,
  60                         final ITreeContentProvider treeContentProvider) {
  61
  62                 final TreeViewer tmpTreeViewer = new TreeViewer(parent, SWT.MULTI);
  63
  64                 tmpTreeViewer.getTree().setLayoutData(
  65                                 new GridData(SWT.FILL, SWT.FILL, true, true));
  66
  67                 tmpTreeViewer.setContentProvider(treeContentProvider);
  68                 tmpTreeViewer.setLabelProvider(new SimpleLabelProvider());
  69                 tmpTreeViewer
  70                                 .addSelectionChangedListener(new ISelectionChangedListener() {
  71                                         public void selectionChanged(SelectionChangedEvent event) {
  72                                                 // something can be done here
  73                                         }
  74                                 });
  75
  76                 tmpTreeViewer.addDoubleClickListener(new GenericDoubleClickListener(
  77                                 tmpTreeViewer));
  78                 return tmpTreeViewer;
  79         }
  80
  81         @Override
  82         public void setFocus() {
  83                 // Do nothing for the time being.
  84
  85         }
  86
  87 }