org.eclipse.osbp.xtext.datamart.common/src/org/eclipse/osbp/xtext/datamart/common/DatamartMultiSelect.java

/**
 *                                                                            
 * Copyright (c) 2011, 2016 - Loetz GmbH&Co.KG (69115 Heidelberg, Germany)
 *                                                                            
 * All rights reserved. This program and the accompanying materials           
 * are made available under the terms of the Eclipse Public License v1.0       
 * which accompanies this distribution, and is available at                  
 * http://www.eclipse.org/legal/epl-v10.html                                 
 *                                                                            
 * Contributors:   
 * Christophe Loetz (Loetz GmbH&Co.KG) - initial implementation 
 */
package org.eclipse.osbp.xtext.datamart.common;

import java.util.ArrayList;
import java.util.Collection;
import java.util.List;

import org.eclipse.osbp.ui.api.datamart.IDatamartSelectable;
import org.eclipse.osbp.ui.api.datamart.IDualData;
import org.eclipse.osbp.utils.theme.EnumCssClass;

import com.vaadin.data.Container;
import com.vaadin.ui.ListSelect;

public class DatamartMultiSelect extends ListSelect implements
		IDatamartSelectable {

	private static final long serialVersionUID = 7284120542309904692L;
	private String filterName = null;
	private boolean slicer = false;
	private String hierarchy = null;
	private IDualData firstItem = null;

	@SuppressWarnings("unchecked")
	@Override
	public boolean isMultiSelected() {
		Collection<IDualData> obj = (Collection<IDualData>) getValue();
		return (obj.size() > 0);
	}

	public DatamartMultiSelect(int rowsLimit, boolean isExcept,
			boolean isSlicer, String filterName, Collection<IDualData> data) {
		addStyleName(EnumCssClass.MULTI_SELECTION.styleName());
		slicer = isSlicer;
		setFilterName(filterName);
		setMultiSelect(true);
		update(data);
		if (data.size() > rowsLimit) {
			setRows(rowsLimit);
		} else {
			setRows(data.size());
		}
	}

	public static long getSerialversionuid() {
		return serialVersionUID;
	}

	public boolean isSlicer() {
		return slicer;
	}

	public DatamartMultiSelect() {
	}

	/**
	 * (re)set all options visible in this box
	 * 
	 * @param options
	 */
	public void update(Collection<IDualData> options) {
		removeAllItems();
		firstItem = null;
		for (IDualData dd : options) {
			setHierarchy(dd.getHierarchy());
			// String item = dd.getFormattedValue();
			String item = dd.getSignificantValue();
			if (item != null) {
				if (firstItem == null) {
					firstItem = dd;
				}
				addItem(dd);
				// setItemCaption(dd, dd.getFormattedValue());
				setItemCaption(dd, dd.getSignificantValue());
			}
		}
		// always select the first option
		Collection<IDualData> selectedItems = new ArrayList<IDualData>();
		selectedItems.add(firstItem);
		setValue(selectedItems);
		setEnabled(true);
		super.setWidth(null);
		setNullSelectionAllowed(false);
		setImmediate(true);
	}

	public void setWidth(String width) {
		super.setWidth(width);
	}
	
	public String getFilterName() {
		return filterName;
	}

	public void setFilterName(String filterName) {
		this.filterName = filterName;
	}

	public List<IDualData> getSelectedItems() {
		List<IDualData> list = new ArrayList<IDualData>();
		for (Object item : (Collection<?>) getValue()) {
			list.add((IDualData) item);
		}
		return (list);
	}

	public IDualData getFirstItem() {
		return firstItem;
	}

	public String getHierarchy() {
		return hierarchy;
	}

	public void setHierarchy(String hierarchy) {
		this.hierarchy = hierarchy;
	}

	@Override
	public Container getContainerDataSource() {
		return super.getContainerDataSource();
	}

	@Override
	public void select(Object obj) {
		super.select(obj);
	}

	@Override
	public void addValueChangeListener(ValueChangeListener listener) {
		super.addValueChangeListener(listener);
	}

	@Override
	public void removeValueChangeListener(ValueChangeListener listener) {
		super.removeValueChangeListener(listener);
	}

	@Override
	public void setCaption(String caption) {
		super.setCaption(caption);
	}

	@Override
	public void setDescription(String description) {
		super.setDescription(description);
	}

	@Override
	public float getHeight() {
		return super.getHeight();
	}

	@Override
	public Unit getHeightUnits() {
		return super.getHeightUnits();
	}

	@Override
	public Object getValue() {
		return super.getValue();
	}
}