GPLegendPanel.java

/**
 *
 *    geo-platform
 *    Rich webgis framework
 *    http://geo-platform.org
 *   ====================================================================
 *
 *   Copyright (C) 2008-2017 geoSDI Group (CNR IMAA - Potenza - ITALY).
 *
 *   This program is free software: you can redistribute it and/or modify it
 *   under the terms of the GNU General Public License as published by
 *   the Free Software Foundation, either version 3 of the License, or
 *   (at your option) any later version. 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, see http://www.gnu.org/licenses/
 *
 *   ====================================================================
 *
 *   Linking this library statically or dynamically with other modules is
 *   making a combined work based on this library. Thus, the terms and
 *   conditions of the GNU General Public License cover the whole combination.
 *
 *   As a special exception, the copyright holders of this library give you permission
 *   to link this library with independent modules to produce an executable, regardless
 *   of the license terms of these independent modules, and to copy and distribute
 *   the resulting executable under terms of your choice, provided that you also meet,
 *   for each linked independent module, the terms and conditions of the license of
 *   that module. An independent module is a module which is not derived from or
 *   based on this library. If you modify this library, you may extend this exception
 *   to your version of the library, but you are not obligated to do so. If you do not
 *   wish to do so, delete this exception statement from your version.
 */
package org.geosdi.geoplatform.gui.client.widget;

import com.extjs.gxt.ui.client.Style.Scroll;
import javax.inject.Inject;
import org.geosdi.geoplatform.gui.client.i18n.LayerModuleConstants;
import org.geosdi.geoplatform.gui.client.widget.map.legend.GPLegendWidget;
import org.geosdi.geoplatform.gui.model.GPLayerBean;
import org.geosdi.geoplatform.gui.puregwt.layers.LayerHandlerManager;
import org.geosdi.geoplatform.gui.puregwt.layers.event.LegendLayerHandler;

/**
 *
 * @author Giuseppe La Scaleia - CNR IMAA geoSDI Group
 * @email giuseppe.lascaleia@geosdi.org
 */
public class GPLegendPanel extends GeoPlatformContentPanel implements
        LegendLayerHandler {

    private GPLegendWidget legendWidget;

    @Inject
    public GPLegendPanel() {
        super(true);
    }

    @Override
    public void addComponent() {
        this.legendWidget = new GPLegendWidget();

        super.add(this.legendWidget.getLegendsStore());
    }

    @Override
    public void initSize() {
    }

    @Override
    public void setPanelProperties() {
        setHeadingHtml(LayerModuleConstants.INSTANCE.GPLegendPanel_headingText());
        setScrollMode(Scroll.AUTOY);

        LayerHandlerManager.addHandler(LegendLayerHandler.TYPE, this);
    }

    /**
     *
     * @param layerBean
     */
    @Override
    public void onDisplayLegend(GPLayerBean layerBean) {
        this.legendWidget.addLegend(layerBean);
    }

    /**
     *
     * @param layerBean
     */
    @Override
    public void onHideLegend(GPLayerBean layerBean) {
        this.legendWidget.hideLegendItem(layerBean);
    }

    /**
     *
     * @param layerBean
     */
    @Override
    public void onReloadLegend(GPLayerBean layerBean) {
        this.legendWidget.reloadLegend(layerBean);
    }

    @Override
    public void cleanLegendWidget() {
        this.legendWidget.resetLegendWidget();
    }
}