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index.zulzul<zk>
<listbox id="demoList" height="400px" checkmark="true" onSelect="selectGroup(event)"
itemRenderer="FoodListGroupRenderer">
<!-- Make Grouping item selectable-->
<custom-attributes org.zkoss.zul.listbox.groupSelect="true" />
<listhead>
<listheader width="160px" sort="auto(Category)" label="Category" />
<listheader width="140px" sort="auto(Name)" label="Name" />
<listheader hflex="1" sort="auto(TopNutrients)" label="Top Nutrients" />
<listheader hflex="1" align="center" sort="auto(DailyPercent)" label="% of Daily" />
<listheader hflex="1" align="center" sort="auto(Calories)" label="Calories" />
<listheader width="140px" sort="auto(Quantity)" label="Quantity" />
</listhead>
</listbox>
<zscript><![CDATA[
AdvancedGroupsModelArray groupModel = new demo.grid.grouping_model.AdvancedGroupsModelArray(
FoodData.getAllFoodsArray(),
new FoodComparator()
);
groupModel.setMultiple(true);
demoList.setModel(groupModel);
public void selectGroup(SelectEvent event) {
Listitem ref = event.getReference();
if (ref instanceof Listgroup){
for (Listitem it :((Listgroup) ref).getItems()){
if(((Listgroup) ref).isSelected()){
groupModel.addToSelection(it.getValue());
}else{
groupModel.removeFromSelection(it.getValue());
}
}
}
}
]]></zscript>
</zk>Food.javajava
public class Food {
private String category;
private String name;
private String topNutrients;
private Integer dailyPercent;
private Integer calories;
private String quantity;
public Food(String category, String name, String topNutrients,
Integer dailyPercent, Integer calories, String quantity) {
this.category = category;
this.name = name;
this.topNutrients = topNutrients;
this.dailyPercent = dailyPercent;
this.calories = calories;
this.quantity = quantity;
}
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 String getTopNutrients() {
return topNutrients;
}
public void setTopNutrients(String topNutrients) {
this.topNutrients = topNutrients;
}
public Integer getDailyPercent() {
return dailyPercent;
}
public void setDailyPercent(Integer dailyPercent) {
this.dailyPercent = dailyPercent;
}
public Integer getCalories() {
return calories;
}
public void setCalories(Integer calories) {
this.calories = calories;
}
public String getQuantity() {
return quantity;
}
public void setQuantity(String quantity) {
this.quantity = quantity;
}
}
FoodData.javajava
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
public class FoodData {
private static List<Food> foods = new ArrayList<Food>();
static {
foods.add(new Food("Vegetables", "Asparagus", "Vitamin K", 115, 43, "1 cup - 92 grams"));
foods.add(new Food("Vegetables", "Beets", "Folate", 33, 74, "1 cup - 170 grams"));
foods.add(new Food("Vegetables", "Bell peppers", "Vitamin C", 291, 24, "1 cup - 92 grams"));
foods.add(new Food("Vegetables", "Cauliflower", "Vitamin C", 92, 28, "1 cup - 124 grams"));
foods.add(new Food("Vegetables", "Eggplant", "Dietary Fiber", 10, 27, "1 cup - 99 grams"));
foods.add(new Food("Vegetables", "Onions", "Chromium", 21, 60, "1 cup - 160 grams"));
foods.add(new Food("Vegetables", "Potatoes", "Vitamin C", 26, 132, "1 cup - 122 grams"));
foods.add(new Food("Vegetables", "Spinach", "Vitamin K", 1110, 41, "1 cup - 180 grams"));
foods.add(new Food("Vegetables", "Tomatoes", "Vitamin C", 57, 37, "1 cup - 180 grams"));
foods.add(new Food("Seafood", "Salmon", "Tryptophan", 103, 261, "4 oz - 113.4 grams"));
foods.add(new Food("Seafood", "Shrimp", "Tryptophan", 103, 112, "4 oz - 113.4 grams"));
foods.add(new Food("Seafood", "Scallops", "Tryptophan", 81, 151, "4 oz - 113.4 grams"));
foods.add(new Food("Seafood", "Cod", "Tryptophan", 90, 119, "4 oz - 113.4 grams"));
foods.add(new Food("Fruits", "Apples", "Manganese", 33, 61, "1 cup - 160 grams"));
foods.add(new Food("Fruits", "Cantaloupe", "Vitamin C", 112, 56, "1 cup - 160 grams"));
foods.add(new Food("Fruits", "Grapes", "Manganese", 33, 61, "1 cup - 92 grams"));
foods.add(new Food("Fruits", "Pineapple", "Manganese", 128, 75, "1 cup - 155 grams"));
foods.add(new Food("Fruits", "Strawberries", "Vitamin C", 24, 48, "1 cup - 150 grams"));
foods.add(new Food("Fruits", "Watermelon", "Vitamin C", 24, 48, "1 cup - 152 grams"));
foods.add(new Food("Poultry & Lean Meats", "Beef, lean organic", "Tryptophan", 112, 240, "4 oz - 113.4 grams"));
foods.add(new Food("Poultry & Lean Meats", "Lamb", "Tryptophan", 109, 229, "4 oz - 113.4 grams"));
foods.add(new Food("Poultry & Lean Meats", "Chicken", "Tryptophan", 121, 223, "4 oz - 113.4 grams"));
foods.add(new Food("Poultry & Lean Meats", "Venison ", "Protein", 69, 179, "4 oz - 113.4 grams"));
foods.add(new Food("Grains", "Corn ", "Vatamin B1", 24, 177, "1 cup - 164 grams"));
foods.add(new Food("Grains", "Oats ", "Manganese", 69, 147, "1 cup - 234 grams"));
foods.add(new Food("Grains", "Barley ", "Dietary Fiber", 54, 270, "1 cup - 200 grams"));
}
public static List<Food> getAllFoods() {
return new ArrayList<Food>(foods);
}
public static Object[] getAllFoodsArray() {
return foods.toArray();
}
// This Method only used in "Data Filter" Demo
public static List<Food> getFilterFoods(FoodFilter foodFilter) {
List<Food> somefoods = new ArrayList<Food>();
String cat = foodFilter.getCategory().toLowerCase();
String nm = foodFilter.getName().toLowerCase();
String nut = foodFilter.getNutrients().toLowerCase();
for (Iterator<Food> i = foods.iterator(); i.hasNext();) {
Food tmp = i.next();
if (tmp.getCategory().toLowerCase().contains(cat) &&
tmp.getName().toLowerCase().contains(nm) &&
tmp.getTopNutrients().toLowerCase().contains(nut)) {
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().equalsIgnoreCase(category)){
somefoods.add(tmp);
}
}
return somefoods;
}
}
FoodListGroupRenderer.javajava
import org.zkoss.zul.Label;
import org.zkoss.zul.Listcell;
import org.zkoss.zul.Listgroup;
import org.zkoss.zul.Listgroupfoot;
import org.zkoss.zul.Listitem;
import org.zkoss.zul.ListitemRenderer;
public class FoodListGroupRenderer implements ListitemRenderer<Object> {
@Override
public void render(Listitem listitem, Object obj, int index) throws Exception {
if (listitem instanceof Listgroup) {
Object[] objs = (Object[]) obj;
Food food = (Food) objs[0];
String groupTxt;
switch (Integer.parseInt(objs[2].toString())) {
case 0:
groupTxt = food.getCategory();
break;
case 1:
groupTxt = food.getName();
break;
case 2:
groupTxt = food.getTopNutrients();
break;
case 3:
groupTxt = food.getDailyPercent().toString();
break;
case 4:
groupTxt = food.getCalories().toString();
break;
case 5:
groupTxt = food.getQuantity();
break;
default:
groupTxt = food.getCategory();
}
listitem.appendChild(new Listcell(groupTxt));
} else if (listitem instanceof Listgroupfoot) {
Listcell cell = new Listcell();
cell.setSclass("foodFooter");
cell.setSpan(6);
cell.appendChild(new Label("Total " + obj + " Items"));
listitem.appendChild(cell);
} else {
Food data = (Food) obj;
listitem.appendChild(new Listcell(data.getCategory()));
listitem.appendChild(new Listcell(data.getName()));
listitem.appendChild(new Listcell(data.getTopNutrients()));
listitem.appendChild(new Listcell(data.getDailyPercent() + ""));
listitem.appendChild(new Listcell(data.getCalories() + ""));
listitem.appendChild(new Listcell(data.getQuantity()));
listitem.setValue(data);
}
}
}