org.thechiselgroup.choosel.protovis.client.ProtovisWidgetWithAnnotations.java Source code

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Here is the source code for org.thechiselgroup.choosel.protovis.client.ProtovisWidgetWithAnnotations.java

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/*******************************************************************************
 * Copyright (C) 2011 Lars Grammel 
 *
 * 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 org.thechiselgroup.choosel.protovis.client;

import com.google.gwt.dom.client.Element;
import com.google.gwt.dom.client.Style;
import com.google.gwt.dom.client.Style.Position;
import com.google.gwt.dom.client.Style.Unit;
import com.google.gwt.user.client.DOM;

public class ProtovisWidgetWithAnnotations extends ProtovisWidget {

    protected Element addDescriptionElement(int topPx, int leftPx, String html, String cssClass) {

        Element div = DOM.createDiv();
        div.setInnerHTML(html);
        Style style = div.getStyle();
        style.setTop(topPx, Unit.PX);
        style.setLeft(leftPx, Unit.PX);
        style.setPosition(Position.ABSOLUTE);

        if (cssClass != null) {
            div.setClassName(cssClass);
        }

        getElement().appendChild(div);
        return div;
    }

    @Override
    protected void onAttach() {
        super.onAttach();
        getElement().getStyle().setPosition(Position.RELATIVE);
    }

}