zkoss/zk

package org.zkoss.zktest.bind.issue;

import java.io.Serializable;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Set;

import org.zkoss.bind.annotation.Command;
import org.zkoss.bind.annotation.NotifyChange;
import org.zkoss.zul.GroupsModelArray;

/**
 *
 */
public class B00967GroupModelListboxMultiple {

    private MyGroupsModelArray groupsModel;

    
    Set<Food> selected;
    
    public B00967GroupModelListboxMultiple() {
        groupsModel = new MyGroupsModelArray(FoodData.getAllFoodsArray(), new FoodComparator());
        groupsModel.setMultiple(true);
    }

    public MyGroupsModelArray getGroupsModel() {
        return groupsModel;
    }

    public Set<Food> getSelected() {
        return selected;
    }

    @NotifyChange({"selected","sortedName"})
    public void setSelected(Set<Food> selected) {
        this.selected = selected;
    }
    
    public List<Food> getSortedName(){
        if(selected==null) return null;
        List sorted = new ArrayList();
        for(Food f:selected){
            sorted.add(f.getName());
        }
        Collections.sort(sorted);
        return sorted;
        
    }
    
    @Command @NotifyChange({"selected","sortedName"})
    public void select(){
        selected = new HashSet<Food>();
        selected.add((Food)groupsModel.getChild(0,0));
        selected.add((Food)groupsModel.getChild(1,1));
    }

    public static class MyGroupsModelArray extends GroupsModelArray {
        public MyGroupsModelArray(Object[] data, Comparator cmpr) {
            super(data, cmpr);
        }

        protected Object createGroupHead(Object[] groupdata, int index, int col) {
            return new Object[] { groupdata[0], index, col };
        }

        // Create GroupFoot Data
        protected Object createGroupFoot(Object[] groupdata, int index, int col) {
            // Return the sum number of each group
            return groupdata.length;
        }
    }

    public static class FoodData {

        private static List<Food> foods = new ArrayList<Food>();
        static {
            foods.add(new Food("Vegetables", "Asparagus"));
            foods.add(new Food("Vegetables", "Beets"));
            foods.add(new Food("Seafood", "Salmon"));
            foods.add(new Food("Seafood", "Shrimp"));
            foods.add(new Food("Fruits", "Apples"));
        }

        public static List getAllFoods() {
            return foods;
        }

        public static Object[] getAllFoodsArray() {
            return foods.toArray();
        }

        // This Method only used in "Data Filter" Demo
        public static List getFilterFoods(String filter1, String filter2, String filter3) {
            List<Food> somefoods = new ArrayList<Food>();
            for (Iterator<Food> i = foods.iterator(); i.hasNext();) {
                Food tmp = i.next();
                if (tmp.getCategory().toLowerCase(java.util.Locale.ENGLISH).indexOf(filter1.trim().toLowerCase(java.util.Locale.ENGLISH)) >= 0
                        && tmp.getName().toLowerCase(java.util.Locale.ENGLISH).indexOf(filter2.trim().toLowerCase(java.util.Locale.ENGLISH)) >= 0) {
                    somefoods.add(tmp);
                }
            }
            return somefoods;
        }

        // This Method only used in "Header and footer" Demo
        public static List<Food> getFoodsByCategory(String category) {
            List<Food> somefoods = new ArrayList<Food>();
            for (Iterator<Food> i = foods.iterator(); i.hasNext();) {
                Food tmp = i.next();
                if (tmp.getCategory().equals(category))
                    somefoods.add(tmp);
            }
            return somefoods;
        }
    }

    public static class Food {
        private String category;
        private String name;

        public Food(String category, String name) {
            super();
            this.category = category;
            this.name = name;
        }

        public String getCategory() {
            return category;
        }

        public void setCategory(String category) {
            this.category = category;
        }

        public String getName() {
            return name;
        }

        public void setName(String name) {
            this.name = name;
        }
    }
    
    public class FoodComparator implements Comparator, Serializable {
        
        public int compare(Object o1, Object o2) {
            Food data = (Food) o1;
            Food data2 = (Food) o2;
            return data.getCategory().compareTo(data2.getCategory().toString());
        }

    }

}