com.klwork.explorer.ui.util.ThemeImageColumnGenerator.java Source code

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Here is the source code for com.klwork.explorer.ui.util.ThemeImageColumnGenerator.java

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/* Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.klwork.explorer.ui.util;

import com.klwork.explorer.ui.mainlayout.ExplorerLayout;
import com.vaadin.event.MouseEvents.ClickListener;
import com.vaadin.server.Resource;
import com.vaadin.server.ThemeResource;
import com.vaadin.ui.Component;
import com.vaadin.ui.Embedded;
import com.vaadin.ui.Table;
import com.vaadin.ui.Table.ColumnGenerator;

/**
 * A {@link ColumnGenerator} that always returns the same component to render,
 * which is an {@link Embeddable} containing the theme image passed in the constructor.
 * 
 * @author Frederik Heremans
 * @author Joram Barrez
 */
public class ThemeImageColumnGenerator implements ColumnGenerator {

    private static final long serialVersionUID = -7742412844347541389L;

    protected Resource image;
    protected ClickListener clickListener;

    public ThemeImageColumnGenerator(String imageName) {
        image = new ThemeResource(imageName);
    }

    public ThemeImageColumnGenerator(Resource image) {
        this.image = image;
    }

    public ThemeImageColumnGenerator(Resource image, ClickListener clickListener) {
        this(image);
        this.clickListener = clickListener;
    }

    public Component generateCell(Table source, Object itemId, Object columnId) {
        Embedded embedded = new Embedded(null, image);

        if (clickListener != null) {
            embedded.addStyleName(ExplorerLayout.STYLE_CLICKABLE);
            embedded.setData(itemId);
            embedded.addListener(clickListener);
        }

        return embedded;
    }

}