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package org.eclipse.fx.ui.controls.sample;
import javafx.application.Application;
import javafx.beans.binding.Bindings;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.scene.Node;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.TextField;
import javafx.scene.control.TitledPane;
import javafx.scene.control.TreeView;
import javafx.scene.layout.BorderPane;
import javafx.scene.layout.HBox;
import javafx.scene.layout.Priority;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;
import org.eclipse.fx.ui.controls.tree.FilterableTreeItem;
import org.eclipse.fx.ui.controls.tree.TreeItemPredicate;
public class FilterableTreeItemSample extends Application {
public static void main(String[] args) {
launch(args);
}
private TextField filterField;
private FilterableTreeItem<Actor> folder1;
@Override
public void start(Stage stage) throws Exception {
try {
Parent root = createContents();
Scene scene = new Scene(root, 800, 600);
stage.setScene(scene);
stage.show();
} catch (Exception e) {
e.printStackTrace();
}
}
private Parent createContents() {
VBox vbox = new VBox(6);
vbox.getChildren().add(createFilterPane());
vbox.getChildren().add(createAddItemPane());
Node demoPane = createDemoPane();
VBox.setVgrow(demoPane, Priority.ALWAYS);
vbox.getChildren().add(demoPane);
return new BorderPane(vbox);
}
private Node createFilterPane() {
filterField = new TextField();
filterField.setPromptText("Enter filter text ...");
TitledPane pane = new TitledPane("Filter", filterField);
pane.setCollapsible(false);
return pane;
}
private Node createAddItemPane() {
HBox box = new HBox(6);
TextField firstname = new TextField();
firstname.setPromptText("Enter first name ...");
TextField lastname = new TextField();
lastname.setPromptText("Enter last name ...");
Button addBtn = new Button("Add new actor to \"Folder 1\"");
addBtn.setOnAction(event -> {
FilterableTreeItem<Actor> treeItem = new FilterableTreeItem<>(new Actor(firstname.getText(), lastname.getText()));
folder1.getInternalChildren().add(treeItem);
});
addBtn.disableProperty().bind(Bindings.isEmpty(lastname.textProperty()));
box.getChildren().addAll(firstname, lastname, addBtn);
TitledPane pane = new TitledPane("Add new element", box);
pane.setCollapsible(false);
return pane;
}
private Node createDemoPane() {
HBox hbox = new HBox(6);
Node filteredTree = createFilteredTree();
HBox.setHgrow(filteredTree, Priority.ALWAYS);
hbox.getChildren().add(filteredTree);
return hbox;
}
private Node createFilteredTree() {
FilterableTreeItem<Actor> root = getTreeModel();
root.predicateProperty().bind(Bindings.createObjectBinding(() -> {
if (filterField.getText() == null || filterField.getText().isEmpty())
return null;
return TreeItemPredicate.create(actor -> actor.toString().contains(filterField.getText()));
}, filterField.textProperty()));
TreeView<Actor> treeView = new TreeView<>(root);
treeView.setShowRoot(false);
TitledPane pane = new TitledPane("Filtered TreeView", treeView);
pane.setCollapsible(false);
pane.setMaxHeight(Double.MAX_VALUE);
return pane;
}
private FilterableTreeItem<Actor> getTreeModel() {
FilterableTreeItem<Actor> root = new FilterableTreeItem<>(new Actor("Root"));
folder1 = createFolder("Folder 1");
folder1.setExpanded(true);
root.getInternalChildren().add(folder1);
root.getInternalChildren().add(createFolder("Folder 2"));
root.getInternalChildren().add(createFolder("Folder 3"));
return root;
}
private FilterableTreeItem<Actor> createFolder(String name) {
FilterableTreeItem<Actor> folder = new FilterableTreeItem<>(new Actor(name));
getActorList().forEach(actor -> folder.getInternalChildren().add(new FilterableTreeItem<>(actor)));
return folder;
}
private Iterable<Actor> getActorList() {
ObservableList<Actor> actorList = FXCollections.observableArrayList(
new Actor("Jack", "Nicholson"),
new Actor("Marlon", "Brando"),
new Actor("Robert", "De Niro"),
new Actor("Al", "Pacino"),
new Actor("Daniel","Day-Lewis"),
new Actor("Dustin", "Hoffman"),
new Actor("Tom", "Hanks"),
new Actor("Anthony", "Hopkins"),
new Actor("Paul", "Newman"),
new Actor("Denzel", "Washington"),
new Actor("Spencer", "Tracy"),
new Actor("Laurence", "Olivier"),
new Actor("Jack", "Lemmon"));
return actorList;
}
private static class Actor {
public String firstname;
public String lastname;
public Actor(String string) {
this.lastname = string;
}
public Actor(String firstname, String lastname) {
this.firstname = firstname;
this.lastname = lastname;
}
@Override
public String toString() {
return firstname == null ? lastname : firstname + " " + lastname;
}
}
}
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