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index.zulzul<zk>
<window id="queryFoodWindow"
apply="org.zkoss.bind.BindComposer"
viewModel="@id('vm') @init('pkg$.FoodViewModel')">
<tree checkmark="true" model="@load(vm.foodTreeModel)" width="1000px" itemRenderer="@load(vm.foodTreeitemRenderer)">
<treecols>
<treecol width="600px" label="Name"/>
<treecol label="Color"/>
<treecol label="Quantity"/>
</treecols>
</tree>
</window>
</zk>FoodViewModel.javajava
import java.util.ArrayList;
import java.util.List;
import org.zkoss.bind.annotation.Command;
import org.zkoss.bind.annotation.Init;
import org.zkoss.bind.annotation.NotifyChange;
import org.zkoss.zul.DefaultTreeModel;
import org.zkoss.zul.DefaultTreeNode;
import org.zkoss.zul.Tree;
import org.zkoss.zul.TreeNode;
public class FoodViewModel {
private DefaultTreeModel<Food> foodTreeModel;
private FoodTreeitemRenderer foodTreeitemRenderer;
private Tree tree;
@Init
public void init() {
List<TreeNode<Food>> rootNodes = createFoodData();
DefaultTreeNode<Food> root = new DefaultTreeNode<>(null, rootNodes);
foodTreeModel = new DefaultTreeModel<>(root);
foodTreeitemRenderer = new FoodTreeitemRenderer();
tree = new Tree();
tree.setModel(foodTreeModel);
tree.setItemRenderer(foodTreeitemRenderer);
}
public DefaultTreeModel<Food> getFoodTreeModel() {
return foodTreeModel;
}
private List<TreeNode<Food>> createFoodData() {
List<TreeNode<Food>> rootNodes = new ArrayList<>();
DefaultTreeNode<Food> nodes = new DefaultTreeNode<>(new Food("Apple", "Red", 5), new ArrayList<>());
DefaultTreeNode<Food> childNode1 = new DefaultTreeNode<>(new Food("Apple1", "Red1", 3), false);
nodes.add(childNode1);
nodes.add(new DefaultTreeNode<>(new Food("Apple2", "Red2", 3)));
TreeNode<Food> node2 = new DefaultTreeNode<>(new Food("Banana", "Yellow", 3));
TreeNode<Food> node3 = new DefaultTreeNode<>(new Food("Orange", "Orange", 4));
rootNodes.add(nodes);
rootNodes.add(node2);
rootNodes.add(node3);
return rootNodes;
}
public void setFoodTreeModel(DefaultTreeModel<Food> foodTreeModel) {
this.foodTreeModel = foodTreeModel;
}
public FoodTreeitemRenderer getFoodTreeitemRenderer() {
return foodTreeitemRenderer;
}
public void setFoodTreeitemRenderer(FoodTreeitemRenderer foodTreeitemRenderer) {
this.foodTreeitemRenderer = foodTreeitemRenderer;
}
}FoodTreeitemRenderer.javajavaimport org.zkoss.zul.DefaultTreeNode;
import org.zkoss.zul.Treecell;
import org.zkoss.zul.Treeitem;
import org.zkoss.zul.TreeitemRenderer;
import org.zkoss.zul.Treerow;
public class FoodTreeitemRenderer implements TreeitemRenderer<DefaultTreeNode<Food>> {
public FoodTreeitemRenderer() {
}
@Override
public void render(Treeitem treeitem, DefaultTreeNode<Food> food, int index) throws Exception {
treeitem.setValue(food);
treeitem.appendChild(new Treerow());
Treerow treerow = (Treerow) treeitem.getChildren().get(0);
Object obj = food.getData();
if (obj instanceof Food) {
Food fo = (Food) obj;
treerow.appendChild(new Treecell(fo.getName()));
treerow.appendChild(new Treecell(fo.getColor()));
treerow.appendChild(new Treecell(String.valueOf(fo.getQuantity())));
if (fo.getQuantity() == 3) {
treeitem.setSelectable(false);
treeitem.setSelected(false);
}
}
}
}
Food.javajavapublic class Food {
private String name;
private String color;
private int quantity;
public Food(String name, String color, int quantity) {
this.name = name;
this.color = color;
this.quantity = quantity;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getColor() {
return color;
}
public void setColor(String color) {
this.color = color;
}
public int getQuantity() {
return quantity;
}
public void setQuantity(int quantity) {
this.quantity = quantity;
}
}