| /** |
| * Copyright (c) 2017 CEA. |
| * 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: |
| * CEA - initial API and implementation and/or initial documentation |
| */ |
| package org.eclipse.sensinact.studio.ui.common.widget; |
| |
| import java.util.List; |
| |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.widgets.Combo; |
| import org.eclipse.swt.widgets.Composite; |
| import org.eclipse.swt.widgets.Control; |
| |
| /** |
| * @author Etienne Gandrille |
| */ |
| public class ComboField extends KeyValueField { |
| |
| private final List<String> keyList; |
| |
| public ComboField(List<String> keyList) { |
| this.keyList = keyList; |
| } |
| |
| @Override |
| protected Control createControl(Composite parent) { |
| Combo combo = new Combo(parent, SWT.BORDER); |
| for (String key : keyList) |
| combo.add(key); |
| |
| // combo.select(0); // less visual confusion is nothing is selected at |
| |
| return combo; |
| } |
| |
| @Override |
| public String getValue() { |
| Combo combo = (Combo) getControl(); |
| return combo.getText(); |
| } |
| |
| @Override |
| public void setValue(String value) { |
| Combo combo = (Combo) getControl(); |
| combo.select(getIndex(value)); |
| } |
| |
| @Override |
| public void resetValue() { |
| Combo combo = (Combo) getControl(); |
| combo.select(0); |
| } |
| |
| private int getIndex(String value) { |
| Combo combo = (Combo) getControl(); |
| for (int i = 0; i < combo.getItemCount(); i++) { |
| String name = combo.getItem(i); |
| if (name.equals(value)) |
| return i; |
| } |
| |
| // not found. A general purpose implementation would return -1 or throw |
| // an exception |
| return 0; |
| } |
| } |