| /******************************************************************************* |
| * Copyright (c) 2011 Laurent CARON |
| * 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: |
| * Laurent CARON (laurent.caron at gmail dot com) - Initial implementation and API |
| *******************************************************************************/ |
| package org.mihalis.opal.preferenceWindow.widgets; |
| |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.List; |
| |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.layout.GridData; |
| import org.eclipse.swt.widgets.Combo; |
| import org.eclipse.swt.widgets.Composite; |
| import org.eclipse.swt.widgets.Control; |
| import org.eclipse.swt.widgets.Event; |
| import org.eclipse.swt.widgets.Listener; |
| import org.mihalis.opal.preferenceWindow.PreferenceWindow; |
| |
| /** |
| * Instances of this class are Combo. |
| */ |
| public class PWCombo extends PWWidget { |
| |
| /** The data. */ |
| private final List<Object> data; |
| |
| /** The editable. */ |
| private final boolean editable; |
| |
| /** |
| * Constructor. |
| * |
| * @param label associated label |
| * @param propertyKey associated key |
| * @param values the values |
| */ |
| public PWCombo(final String label, final String propertyKey, final Object... values) { |
| this(label, propertyKey, false, values); |
| } |
| |
| /** |
| * Constructor. |
| * |
| * @param label associated label |
| * @param propertyKey associated key |
| * @param editable the editable |
| * @param values the values |
| */ |
| public PWCombo(final String label, final String propertyKey, final boolean editable, final Object... values) { |
| super(label, propertyKey, label == null ? 1 : 2, false); |
| this.data = new ArrayList<Object>(Arrays.asList(values)); |
| this.editable = editable; |
| } |
| |
| /** |
| * Builds the. |
| * |
| * @param parent the parent |
| * @return the control |
| * @see org.mihalis.opal.preferenceWindow.widgets.PWWidget#build(org.eclipse.swt.widgets.Composite) |
| */ |
| @Override |
| public Control build(final Composite parent) { |
| buildLabel(parent, GridData.CENTER); |
| |
| final Combo combo = new Combo(parent, SWT.BORDER | (this.editable ? SWT.NONE : SWT.READ_ONLY)); |
| addControl(combo); |
| |
| for (int i = 0; i < this.data.size(); i++) { |
| final Object datum = this.data.get(i); |
| combo.add(datum.toString()); |
| if (datum.equals(PreferenceWindow.getInstance().getValueFor(getPropertyKey()))) { |
| combo.select(i); |
| } |
| } |
| |
| combo.addListener(SWT.Modify, new Listener() { |
| |
| @Override |
| public void handleEvent(final Event event) { |
| PreferenceWindow.getInstance().setValue(getPropertyKey(), PWCombo.this.data.get(combo.getSelectionIndex())); |
| } |
| }); |
| |
| return combo; |
| } |
| |
| /** |
| * Check. |
| * |
| * @see org.mihalis.opal.preferenceWindow.widgets.PWWidget#check() |
| */ |
| @Override |
| public void check() { |
| final Object value = PreferenceWindow.getInstance().getValueFor(getPropertyKey()); |
| if (value == null) { |
| PreferenceWindow.getInstance().setValue(getPropertyKey(), null); |
| } else { |
| if (this.editable && !(value instanceof String)) { |
| throw new UnsupportedOperationException("The property '" + getPropertyKey() + "' has to be a String because it is associated to an editable combo"); |
| } |
| |
| if (!this.data.isEmpty()) { |
| if (!value.getClass().equals(this.data.get(0).getClass())) { |
| throw new UnsupportedOperationException("The property '" + getPropertyKey() + "' has to be a " + this.data.get(0).getClass() + " because it is associated to a combo"); |
| } |
| } |
| |
| } |
| } |
| } |