n3phele.client.widgets.ValidInputIndicatorCell.java Source code

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Here is the source code for n3phele.client.widgets.ValidInputIndicatorCell.java

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/**
 * @author Nigel Cook
 *
 * (C) Copyright 2010-2012. Nigel Cook. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 * 
 * Licensed under the terms described in LICENSE file that accompanied this code, (the "License"); you may not use this file
 * except in compliance with the License. 
 * 
 *  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 n3phele.client.widgets;

import com.google.gwt.cell.client.AbstractCell;
import com.google.gwt.resources.client.ImageResource;
import com.google.gwt.safehtml.shared.SafeHtmlBuilder;
import com.google.gwt.safehtml.shared.SafeHtmlUtils;
import com.google.gwt.user.client.ui.AbstractImagePrototype;

public class ValidInputIndicatorCell extends AbstractCell<String> {

    private final String iconImage;

    public ValidInputIndicatorCell(ImageResource icon) {

        this.iconImage = AbstractImagePrototype.create(icon).getHTML();
    }

    @Override
    public void render(com.google.gwt.cell.client.Cell.Context context, String value, SafeHtmlBuilder sb) {
        if (value != null) {
            boolean visible = value.startsWith("+");
            value = value.substring(1);
            String html = iconImage.replace("<img ", "<img title=\"" + value + "\" ");
            if (!visible) {
                html = html.replace("style='", "style='margin-bottom:-5px; display:none; ");
            } else {
                html = html.replace("style='", "style='margin-bottom:-5px; ");
            }
            sb.append(SafeHtmlUtils.fromTrustedString(html));
        } else {
            sb.append(SafeHtmlUtils.fromTrustedString(iconImage));
        }
    }
}