widgets/src/main/java/org/apache/hupa/widgets/ui/RndPanel.java

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 * regarding copyright ownership.  The ASF licenses this file   *
 * to you under the Apache License, Version 2.0 (the            *
 * "License"); you may not use this file except in compliance   *
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package org.apache.hupa.widgets.ui;

import com.google.gwt.core.client.GWT;
import com.google.gwt.user.client.ui.Composite;
import com.google.gwt.user.client.ui.FlowPanel;
import com.google.gwt.user.client.ui.Widget;

import org.apache.hupa.widgets.ui.impl.RndPanelGenerator;

/**
 * Widget which renders a rounded panel.
 *
 * This is here because IE doesn't support rounded borders in css,
 * so it is needed to wrap the container with additional html elements.
 *
 * For other browsers this class just produces a class-named FlowPanel.
 *
 */
public class RndPanel extends Composite {

    private static final RndPanelGenerator impl = GWT.create(RndPanelGenerator.class);

    private FlowPanel panel = new FlowPanel();

    public RndPanel() {
        panel = impl.createPanel();
        initWidget(impl.roundPanel(panel));
    }

    public void add(Widget child) {
        panel.add(child);
    }

    public void insert(Widget w, int beforeIndex) {
        panel.insert(w, beforeIndex);
    }

    public void clear() {
        panel.clear();
    }

    public boolean remove(Widget w) {
        return panel.remove(w);
    }

    public void setWidget(Widget w) {
        panel.clear();
        panel.add(w);
    }

    @Override
    public void addStyleName(String style) {
        getWidget().addStyleName(style);
    }

}