Bug 215145: [Snippet] Cell editor in tree viewer on menu selection

1 files changed, 204 insertions, 0 deletions

diff --git a/examples/org.eclipse.jface.snippets/Eclipse JFace Snippets/org/eclipse/jface/snippets/viewers/Snippet053StartEditorWithContextMenu.java b/examples/org.eclipse.jface.snippets/Eclipse JFace Snippets/org/eclipse/jface/snippets/viewers/Snippet053StartEditorWithContextMenu.java
new file mode 100644
index 00000000000..bb550aa1ee1
--- /dev/null
+++ b/examples/org.eclipse.jface.snippets/Eclipse JFace Snippets/org/eclipse/jface/snippets/viewers/Snippet053StartEditorWithContextMenu.java
@@ -0,0 +1,204 @@
+/*******************************************************************************
+ * Copyright (c) 2007 Marcel and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     Marcel <emmpeegee@gmail.com> - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.jface.snippets.viewers;
+
+import java.util.ArrayList;
+
+import org.eclipse.jface.viewers.CellEditor;
+import org.eclipse.jface.viewers.ColumnViewerEditor;
+import org.eclipse.jface.viewers.ColumnViewerEditorActivationEvent;
+import org.eclipse.jface.viewers.ColumnViewerEditorActivationStrategy;
+import org.eclipse.jface.viewers.ICellModifier;
+import org.eclipse.jface.viewers.IStructuredSelection;
+import org.eclipse.jface.viewers.ITreeContentProvider;
+import org.eclipse.jface.viewers.TextCellEditor;
+import org.eclipse.jface.viewers.TreeViewer;
+import org.eclipse.jface.viewers.TreeViewerEditor;
+import org.eclipse.jface.viewers.Viewer;
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.events.SelectionEvent;
+import org.eclipse.swt.events.SelectionListener;
+import org.eclipse.swt.layout.FillLayout;
+import org.eclipse.swt.widgets.Display;
+import org.eclipse.swt.widgets.Menu;
+import org.eclipse.swt.widgets.MenuItem;
+import org.eclipse.swt.widgets.Shell;
+import org.eclipse.swt.widgets.TreeItem;
+
+/**
+ *
+ */
+public class Snippet053StartEditorWithContextMenu implements SelectionListener {
+
+	private TreeViewer viewer;
+
+	private class MyContentProvider implements ITreeContentProvider {
+
+		/* (non-Javadoc)
+		 * @see org.eclipse.jface.viewers.IStructuredContentProvider#getElements(java.lang.Object)
+		 */
+		public Object[] getElements(Object inputElement) {
+			return ((MyModel)inputElement).child.toArray();
+		}
+
+		/* (non-Javadoc)
+		 * @see org.eclipse.jface.viewers.IContentProvider#dispose()
+		 */
+		public void dispose() {
+
+		}
+
+		/* (non-Javadoc)
+		 * @see org.eclipse.jface.viewers.IContentProvider#inputChanged(org.eclipse.jface.viewers.Viewer, java.lang.Object, java.lang.Object)
+		 */
+		public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
+
+		}
+
+		/* (non-Javadoc)
+		 * @see org.eclipse.jface.viewers.ITreeContentProvider#getChildren(java.lang.Object)
+		 */
+		public Object[] getChildren(Object parentElement) {
+			return getElements(parentElement);
+		}
+
+		/* (non-Javadoc)
+		 * @see org.eclipse.jface.viewers.ITreeContentProvider#getParent(java.lang.Object)
+		 */
+		public Object getParent(Object element) {
+			if( element == null) {
+				return null;
+			}
+
+			return ((MyModel)element).parent;
+		}
+
+		/* (non-Javadoc)
+		 * @see org.eclipse.jface.viewers.ITreeContentProvider#hasChildren(java.lang.Object)
+		 */
+		public boolean hasChildren(Object element) {
+			return ((MyModel)element).child.size() > 0;
+		}
+
+	}
+
+	public class MyModel {
+		public MyModel parent;
+		public ArrayList child = new ArrayList();
+		public int counter;
+
+		public MyModel(int counter, MyModel parent) {
+			this.parent = parent;
+			this.counter = counter;
+		}
+
+		public String toString() {
+			String rv = "Item ";
+			if( parent != null ) {
+				rv = parent.toString() + ".";
+			}
+
+			rv += counter;
+
+			return rv;
+		}
+	}
+
+	public Snippet053StartEditorWithContextMenu(Shell shell) {
+		viewer = new TreeViewer(shell, SWT.BORDER);
+		viewer.setContentProvider(new MyContentProvider());
+		viewer.setCellEditors(new CellEditor[] {new TextCellEditor(viewer.getTree())});
+		viewer.setColumnProperties(new String[] { "name" });
+		viewer.setCellModifier(new ICellModifier() {
+
+			/* (non-Javadoc)
+			 * @see org.eclipse.jface.viewers.ICellModifier#canModify(java.lang.Object, java.lang.String)
+			 */
+			public boolean canModify(Object element, String property) {
+				return true;
+			}
+
+			/* (non-Javadoc)
+			 * @see org.eclipse.jface.viewers.ICellModifier#getValue(java.lang.Object, java.lang.String)
+			 */
+			public Object getValue(Object element, String property) {
+				return ((MyModel)element).counter + "";
+			}
+
+			/* (non-Javadoc)
+			 * @see org.eclipse.jface.viewers.ICellModifier#modify(java.lang.Object, java.lang.String, java.lang.Object)
+			 */
+			public void modify(Object element, String property, Object value) {
+				TreeItem item = (TreeItem)element;
+				((MyModel)item.getData()).counter = Integer.parseInt(value.toString());
+				viewer.update(item.getData(), null);
+			}
+
+		});
+
+		TreeViewerEditor.create(viewer, new ColumnViewerEditorActivationStrategy(viewer) {
+			protected boolean isEditorActivationEvent(ColumnViewerEditorActivationEvent event) {
+				return event.eventType == ColumnViewerEditorActivationEvent.PROGRAMMATIC;
+			}
+		}, ColumnViewerEditor.DEFAULT);
+
+		Menu menu = new Menu(viewer.getControl());
+		MenuItem renameItem = new MenuItem(menu, SWT.PUSH);
+		renameItem.addSelectionListener(this);
+		renameItem.setText("Rename");
+		viewer.getTree().setMenu(menu);
+
+		viewer.setInput(createModel());
+	}
+
+	public void widgetDefaultSelected(SelectionEvent e) {
+	}
+
+	public void widgetSelected(SelectionEvent e) {
+		IStructuredSelection selection = (IStructuredSelection) viewer.getSelection();
+		if (selection != null) {
+			viewer.editElement(selection.getFirstElement(), 0);
+		}
+	}
+
+	private MyModel createModel() {
+
+		MyModel root = new MyModel(0,null);
+		root.counter = 0;
+
+		MyModel tmp;
+		for( int i = 1; i < 10; i++ ) {
+			tmp = new MyModel(i, root);
+			root.child.add(tmp);
+			for( int j = 1; j < i; j++ ) {
+				tmp.child.add(new MyModel(j,tmp));
+			}
+		}
+
+		return root;
+	}
+
+	public static void main(String[] args) {
+		Display display = new Display ();
+		Shell shell = new Shell(display);
+		shell.setLayout(new FillLayout());
+		new Snippet053StartEditorWithContextMenu(shell);
+		shell.open ();
+
+		while (!shell.isDisposed ()) {
+			if (!display.readAndDispatch ()) display.sleep ();
+		}
+
+		display.dispose ();
+	}
+}
+
+