com.edgenius.wiki.gwt.client.widgets.ButtonBar.java Source code

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Here is the source code for com.edgenius.wiki.gwt.client.widgets.ButtonBar.java

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/* 
 * =============================================================
 * Copyright (C) 2007-2011 Edgenius (http://www.edgenius.com)
 * =============================================================
 * License Information: http://www.edgenius.com/licensing/edgenius/2.0/
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2.0
 * as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 *
 * http://www.gnu.org/licenses/gpl.txt
 *  
 * ****************************************************************
 */
package com.edgenius.wiki.gwt.client.widgets;

import com.edgenius.wiki.gwt.client.Css;
import com.google.gwt.user.client.DOM;
import com.google.gwt.user.client.ui.AbsolutePanel;
import com.google.gwt.user.client.ui.Widget;

/**
 * @author Dapeng.Ni
 */
public class ButtonBar extends AbsolutePanel {
    private int style;

    public static final int LEFT = 1;
    public static final int CENTER = 1 << 1;
    public static final int RIGHT = 1 << 2;

    public static final int NEGATIVE = 1 << 3;
    public static final int NORMAL = 1 << 4;
    public static final int POSITIVE = 1 << 5;

    public ButtonBar() {
        this(ButtonBar.RIGHT | ButtonBar.NORMAL);

    }

    public ButtonBar(int style) {
        this.style = style;

        this.setWidth("100%");

        if ((style & ButtonBar.NEGATIVE) > 0 || (style & ButtonBar.POSITIVE) > 0) {
            this.addStyleName(Css.BUTTONS);
        } else {
            this.addStyleName(Css.SMALL_BUTTONS);
        }
        if ((style & ButtonBar.CENTER) > 0)
            DOM.setElementAttribute(this.getElement(), "align", "center");
        else if ((style & ButtonBar.LEFT) > 0)
            DOM.setElementAttribute(this.getElement(), "align", "left");
        else if ((style & ButtonBar.RIGHT) > 0)
            DOM.setElementAttribute(this.getElement(), "align", "right");

        DOM.setElementAttribute(this.getElement(), "margin", "8px");
    }

    public void add(Widget btn) {

        super.add(btn);

        if ((style & ButtonBar.NORMAL) > 0) {
            btn.setStyleName(null);
        } else if ((style & ButtonBar.NEGATIVE) > 0) {
            btn.setStyleName(Css.NEGATIVE);
        } else {
            btn.setStyleName(Css.POSITIVE);
        }
    }
}