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/*
 * Copyright 2012 Decebal Suiu
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this work except in compliance with
 * the License. You may obtain a copy of the License in the LICENSE file, or at:
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
 * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
 * specific language governing permissions and limitations under the License.
 */
package org.wicketstuff.dashboard;

import java.util.List;
import java.util.Map;

import org.wicketstuff.dashboard.web.DashboardEvent;

/**
 * @author Decebal Suiu
 */
public class DashboardUtils {

	@SuppressWarnings("unchecked")
	public static void updateWidgetLocations(Dashboard dashboard, DashboardEvent dashboardEvent) {
		DashboardEvent.EventType eventType = dashboardEvent.getType();
		if (DashboardEvent.EventType.WIDGET_ADDED == eventType) {
			List widgets = dashboard.getWidgets(0);
			for (Widget widget : widgets) {
				widget.getLocation().incrementRow();
			}
		} else if (DashboardEvent.EventType.WIDGET_REMOVED == eventType) {
			Widget widgetRemoved = (Widget) dashboardEvent.getDetail();
			WidgetLocation widgetRemovedLocation = widgetRemoved.getLocation();
			List widgets = dashboard.getWidgets(widgetRemovedLocation.getColumn());
			for (Widget widget : widgets) {
				WidgetLocation widgetLocation = widget.getLocation();
				if (widgetLocation.getRow() > widgetRemovedLocation.getRow()) {
					widget.getLocation().decrementRow();
				}
			}
		} else if (DashboardEvent.EventType.WIDGETS_SORTED == eventType) {
			Map widgetLocations = (Map) dashboardEvent.getDetail();
			List widgets = dashboard.getWidgets();
			for (Widget widget : widgets) {
				String id = widget.getId();
				WidgetLocation location = widgetLocations.get(id);
				if (!location.equals(widget.getLocation())) {
					widget.setLocation(location);
				}
			}
		}
	}

}