package com.temp.client.foundation.widget;


import com.google.gwt.user.client.ui.Composite;
import com.google.gwt.user.client.ui.HTMLPanel;
import com.google.gwt.user.client.ui.Widget;

/**
 * LeftRightPanel is basically a Single Row Table that is 100% wide that only
 * supports a Left aligned widget and a Right aligned Widget.
 *
 * @author georgs
 */
public class LeftRightPanel extends Composite {

    public LeftRightPanel(Widget left, Widget right) {
        String Id = HTMLPanel.createUniqueId();
        String leftId = "left-" + Id;
        String rightId = "right-" + Id;
        HTMLPanel htmlPanel = new HTMLPanel("<table border=0 cellpadding=0 cellspacing=0 width='100%'><tr>" + //
                "<td id='" + leftId + "' align='left' valign='middle'></td>" + //
                "<td id='" + rightId + "' align='right' valign='middle'></td>" + //
                "</tr></table>");
        htmlPanel.add(deNull(left), leftId);
        htmlPanel.add(deNull(right), rightId);
        initWidget(htmlPanel);
    }

    public LeftRightPanel style(String className) {
        addStyleName(className);
        return this;
    }

    private Widget deNull(Widget widget) {
        if (widget == null) {
            widget = new Spacer("1px", "1px");
        }
        return widget;
    }
}