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/*******************************************************************************
* Copyright (c) 2007, 2008 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 ();
}
}
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