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/*******************************************************************************
* Copyright (c) 2006, 2015 Tom Schindl and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* Tom Schindl - initial API and implementation
* Jeanderson Candido <http://jeandersonbc.github.io> - Bug 414565
* Simon Scholz <simon.scholz@vogella.com> - Bug 448143
* Lars Vogel <Lars.Vogel@vogella.com> - Bug 475361
*******************************************************************************/
package org.eclipse.jface.snippets.viewers;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.jface.viewers.ArrayContentProvider;
import org.eclipse.jface.viewers.CellEditor;
import org.eclipse.jface.viewers.ColumnLabelProvider;
import org.eclipse.jface.viewers.ColumnViewer;
import org.eclipse.jface.viewers.ColumnViewerEditor;
import org.eclipse.jface.viewers.ColumnViewerEditorActivationStrategy;
import org.eclipse.jface.viewers.EditingSupport;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.jface.viewers.TableViewerColumn;
import org.eclipse.jface.viewers.TableViewerEditor;
import org.eclipse.jface.viewers.TextCellEditor;
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.TableColumn;
/**
* Edit cell values in a table
*
* @author Tom Schindl <tom.schindl@bestsolution.at>
*
*/
public class Snippet025TabEditing {
public static class MyModel {
public int counter;
public MyModel(int counter) {
this.counter = counter;
}
@Override
public String toString() {
return "Item " + this.counter;
}
}
public Snippet025TabEditing(Shell shell) {
final TableViewer viewer = new TableViewer(shell, SWT.BORDER
| SWT.FULL_SELECTION);
viewer.setContentProvider(ArrayContentProvider.getInstance());
createColumnFor(viewer, "Column 1", 100);
createColumnFor(viewer, "Column 2", 200);
TableViewerEditor.create(viewer,
new ColumnViewerEditorActivationStrategy(viewer),
ColumnViewerEditor.TABBING_HORIZONTAL
| ColumnViewerEditor.TABBING_MOVE_TO_ROW_NEIGHBOR
| ColumnViewerEditor.TABBING_VERTICAL);
viewer.setInput(createModel());
viewer.getTable().setLinesVisible(true);
viewer.getTable().setHeaderVisible(true);
}
private void createColumnFor(TableViewer viewer, String label, int width) {
TableColumn tc = new TableColumn(viewer.getTable(), SWT.NONE);
tc.setWidth(width);
tc.setText(label);
TableViewerColumn viewerColumn = new TableViewerColumn(viewer, tc);
viewerColumn.setLabelProvider(new ColumnLabelProvider());
viewerColumn.setEditingSupport(new MyEditingSupport(viewer));
}
private List<MyModel> createModel() {
List<MyModel> elements = new ArrayList<>();
for (int i = 0; i < 10; i++) {
elements.add(new MyModel(i));
}
return elements;
}
/**
* @param args
*/
public static void main(String[] args) {
Display display = new Display();
Shell shell = new Shell(display);
shell.setLayout(new FillLayout());
new Snippet025TabEditing(shell);
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch())
display.sleep();
}
display.dispose();
}
private class MyEditingSupport extends EditingSupport{
public MyEditingSupport(ColumnViewer viewer) {
super(viewer);
}
@Override
protected CellEditor getCellEditor(Object element) {
return new TextCellEditor((Composite) getViewer().getControl());
}
@Override
protected boolean canEdit(Object element) {
return ((MyModel) element).counter % 2 == 0;
}
@Override
protected Object getValue(Object element) {
return ((MyModel) element).counter + "";
}
@Override
protected void setValue(Object element, Object value) {
((MyModel) element).counter = Integer.parseInt(value.toString());
getViewer().update(element, null);
}
}
}
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