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SelectListViewTest.java
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SelectListViewTest.java
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/*
* Copyright (c) 2022, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
import javafx.application.Application;
import javafx.collections.ObservableList;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.ListView;
import javafx.scene.control.SelectionMode;
import javafx.scene.layout.BorderPane;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;
public class SelectListViewTest extends Application {
final int ROW_COUNT = 70_000;
// final int ROW_COUNT = 400_000;
// final int ROW_COUNT = 10_000_000;
// final int ROW_COUNT = 7_000;
@Override
public void start(Stage stage) {
ListView<String> listView = new ListView<>();
listView.getSelectionModel().setSelectionMode(SelectionMode.MULTIPLE);
ObservableList<String> items = listView.getItems();
for(int i = 0; i < ROW_COUNT; i++) {
String rec = String.valueOf(i);
items.add(rec);
}
BorderPane root = new BorderPane(listView);
Button selectAll = new Button("selectAll");
Button clearSelection = new Button("clearSelection");
Button selectToStart = new Button("selectToStart");
Button selectToEnd = new Button("selectToEnd");
Button selectPrevious = new Button("selectPrevious");
Button selectNext= new Button("selectNext");
selectAll.setFocusTraversable(true);
clearSelection.setFocusTraversable(true);
selectToStart.setFocusTraversable(true);
selectToEnd.setFocusTraversable(true);
selectPrevious.setFocusTraversable(true);
selectNext.setFocusTraversable(true);
root.setRight(new VBox(6, selectAll, selectToStart, selectToEnd, selectPrevious, selectNext, clearSelection));
stage.setScene(new Scene(root, 600, 600));
selectAll.setOnAction(e -> selectAll(listView));
clearSelection.setOnAction(e -> clearSelection(listView));
selectToStart.setOnAction(e -> selectToStart(listView));
selectToEnd.setOnAction(e -> selectToLast(listView));
selectPrevious.setOnAction(e -> selectPrevious(listView));
selectNext.setOnAction(e -> selectNext(listView));
stage.show();
}
private void selectAll(ListView listView) {
long t = System.currentTimeMillis();
listView.getSelectionModel().selectAll();
System.out.println("time:" + (System.currentTimeMillis() - t));
}
private void clearSelection(ListView listView) {
long t = System.currentTimeMillis();
listView.getSelectionModel().clearSelection();
System.out.println("time:" + (System.currentTimeMillis() - t));
}
private void selectToStart(ListView listView) {
long t = System.currentTimeMillis();
listView.getSelectionModel().selectRange(0, listView.getSelectionModel().getSelectedIndex());
System.out.println("time:" + (System.currentTimeMillis() - t));
}
private void selectToLast(ListView listView) {
long t = System.currentTimeMillis();
listView.getSelectionModel().selectRange(listView.getSelectionModel().getSelectedIndex(), listView.getItems().size());
System.out.println("time:" + (System.currentTimeMillis() - t));
}
private void selectPrevious(ListView listView) {
long t = System.currentTimeMillis();
listView.getSelectionModel().selectPrevious();
System.out.println("time:" + (System.currentTimeMillis() - t));
}
private void selectNext(ListView listView) {
long t = System.currentTimeMillis();
listView.getSelectionModel().selectNext();
System.out.println("time:" + (System.currentTimeMillis() - t));
}
public static void main(String[] args) {
Application.launch(args);
}
}