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// $Id$
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/**
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* Copyright (C) 2007 EDIT
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* European Distributed Institute of Taxonomy
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* http://www.e-taxonomy.eu
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*
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* The contents of this file are subject to the Mozilla Public License Version 1.1
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* See LICENSE.TXT at the top of this package for the full license terms.
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*/
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package eu.etaxonomy.taxeditor.propertysheet;
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import org.eclipse.core.runtime.Assert;
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import org.eclipse.jface.viewers.CellEditor;
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import org.eclipse.jface.viewers.ColumnViewerEditorActivationEvent;
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import org.eclipse.swt.SWT;
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import org.eclipse.swt.events.SelectionAdapter;
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import org.eclipse.swt.events.SelectionEvent;
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import org.eclipse.swt.widgets.Button;
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import org.eclipse.swt.widgets.Composite;
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import org.eclipse.swt.widgets.Control;
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/**
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* @author p.ciardelli
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* @created 15.05.2009
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* @version 1.0
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*/
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public class CheckboxCellEditor extends CellEditor {
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/**
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* The checkbox value.
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*/
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/* package */
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boolean value = false;
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private Button button;
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/**
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* Default CheckboxCellEditor style
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*/
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private static final int defaultStyle = SWT.NONE;
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/**
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* Creates a new checkbox cell editor with no control
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* @since 2.1
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*/
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public CheckboxCellEditor() {
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setStyle(defaultStyle);
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}
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/**
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* Creates a new checkbox cell editor parented under the given control.
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* The cell editor value is a boolean value, which is initially <code>false</code>.
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* Initially, the cell editor has no cell validator.
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*
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* @param parent the parent control
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*/
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public CheckboxCellEditor(Composite parent) {
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this(parent, defaultStyle);
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}
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/**
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* Creates a new checkbox cell editor parented under the given control.
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* The cell editor value is a boolean value, which is initially <code>false</code>.
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* Initially, the cell editor has no cell validator.
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*
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* @param parent the parent control
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* @param style the style bits
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* @since 2.1
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*/
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public CheckboxCellEditor(Composite parent, int style) {
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super(parent, style);
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}
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/**
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* The <code>CheckboxCellEditor</code> implementation of
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* this <code>CellEditor</code> framework method does
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* nothing and returns <code>null</code>.
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*/
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protected Control createControl(Composite parent) {
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button = new Button(parent, SWT.CHECK);
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button.addSelectionListener(new SelectionAdapter() {
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public void widgetSelected(SelectionEvent e) {
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value = button.getSelection();
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}
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});
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return button;
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}
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/**
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* The <code>CheckboxCellEditor</code> implementation of
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* this <code>CellEditor</code> framework method returns
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* the checkbox setting wrapped as a <code>Boolean</code>.
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*
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* @return the Boolean checkbox value
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*/
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protected Object doGetValue() {
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return value ? Boolean.TRUE : Boolean.FALSE;
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}
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/* (non-Javadoc)
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* Method declared on CellEditor.
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*/
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protected void doSetFocus() {
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// Ignore
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}
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/**
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* The <code>CheckboxCellEditor</code> implementation of
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* this <code>CellEditor</code> framework method accepts
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* a value wrapped as a <code>Boolean</code>.
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*
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* @param value a Boolean value
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*/
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protected void doSetValue(Object value) {
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Assert.isTrue(value instanceof Boolean);
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this.value = ((Boolean) value).booleanValue();
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}
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public void activate(ColumnViewerEditorActivationEvent activationEvent) {
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if (activationEvent.eventType != ColumnViewerEditorActivationEvent.TRAVERSAL) {
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super.activate(activationEvent);
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}
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}
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public Control getControl() {
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return button;
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}
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}
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