org.eclipse.papyrus.xwt.jface.TextCellEditor.java Source code

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Here is the source code for org.eclipse.papyrus.xwt.jface.TextCellEditor.java

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/*******************************************************************************
 * Copyright (c) 2006, 2010 Soyatec (http://www.soyatec.com) 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:
 *     Soyatec - initial API and implementation
 *******************************************************************************/
package org.eclipse.papyrus.xwt.jface;

import org.eclipse.core.databinding.conversion.IConverter;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.papyrus.xwt.IIndexedElement;
import org.eclipse.papyrus.xwt.XWT;
import org.eclipse.papyrus.xwt.XWTException;
import org.eclipse.swt.widgets.Composite;

public class TextCellEditor extends org.eclipse.jface.viewers.TextCellEditor implements IIndexedElement {

    protected CellEditorHelper cellEditorHelper;

    public TextCellEditor(Composite parent) {
        super(parent);
    }

    public TextCellEditor(Composite parent, int style) {
        super(parent, style);
    }

    @Override
    protected void doSetValue(Object value) {
        if (value == null) {
            super.doSetValue("");
        } else {
            Class<?> targetType = getTargetType();
            if (targetType != String.class) {
                IConverter converter = XWT.findConvertor(targetType, String.class);
                if (converter != null) {
                    value = converter.convert(value);
                }
            }
            super.doSetValue(value);
        }
    }

    @Override
    protected Object doGetValue() {
        Object value = super.doGetValue();
        Class<?> targetType = getTargetType();
        if (targetType != value.getClass()) {
            IConverter converter = XWT.findConvertor(value.getClass(), targetType);
            if (converter != null) {
                value = converter.convert(value);
            }
        }
        return value;
    }

    protected Class<?> getTargetType() {
        if (cellEditorHelper != null) {
            return cellEditorHelper.getTargetType();
        }
        return Object.class;
    }

    public void setIndex(Object parent, int index) {
        if (!(parent instanceof TableViewer)) {
            throw new XWTException("TableView is expected, not \"" + parent.getClass().getName() + "\"");
        }
        cellEditorHelper = new CellEditorHelper((TableViewer) parent, index);
    }
}