001    package org.gwtbootstrap3.client.ui;
002    
003    /*
004     * #%L
005     * GwtBootstrap3
006     * %%
007     * Copyright (C) 2013 GwtBootstrap3
008     * %%
009     * Licensed under the Apache License, Version 2.0 (the "License");
010     * you may not use this file except in compliance with the License.
011     * You may obtain a copy of the License at
012     * 
013     *      http://www.apache.org/licenses/LICENSE-2.0
014     * 
015     * Unless required by applicable law or agreed to in writing, software
016     * distributed under the License is distributed on an "AS IS" BASIS,
017     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
018     * See the License for the specific language governing permissions and
019     * limitations under the License.
020     * #L%
021     */
022    
023    import org.gwtbootstrap3.client.ui.base.HasResponsiveness;
024    import org.gwtbootstrap3.client.ui.base.helper.StyleHelper;
025    import org.gwtbootstrap3.client.ui.constants.DeviceSize;
026    import org.gwtbootstrap3.client.ui.constants.Styles;
027    
028    import com.google.gwt.dom.client.Document;
029    import com.google.gwt.dom.client.Element;
030    import com.google.gwt.user.client.ui.ComplexPanel;
031    import com.google.gwt.user.client.ui.Widget;
032    
033    /**
034     * @author Joshua Godi
035     */
036    public class IconStack extends ComplexPanel implements HasResponsiveness {
037    
038        public IconStack() {
039            setElement(Document.get().createSpanElement());
040            getElement().addClassName(Styles.ICON_STACK);
041        }
042    
043        /**
044         * Adds an icon onto the icon stack
045         *
046         * @param icon Icon
047         * @param base Bottom icon or not
048         */
049        public void add(final Icon icon, final boolean base) {
050            icon.setStackBase(base);
051            add(icon);
052        }
053    
054        @Override
055        public void add(final Widget child) {
056            if (!(child instanceof Icon)) {
057                throw new IllegalArgumentException("An IconStack can only have children that are of type Icon.");
058            }
059    
060            add(child, (Element) getElement());
061        }
062    
063        @Override
064        public void setVisibleOn(final DeviceSize deviceSize) {
065            StyleHelper.setVisibleOn(this, deviceSize);
066        }
067    
068        @Override
069        public void setHiddenOn(final DeviceSize deviceSize) {
070            StyleHelper.setHiddenOn(this, deviceSize);
071        }
072    }