ensemble.samples.scenegraph.events.keyevent.KeyEventApp Maven / Gradle / Ivy
/*
* Copyright (c) 2008, 2014, Oracle and/or its affiliates.
* All rights reserved. Use is subject to license terms.
*
* This file is available and licensed under the following license:
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the distribution.
* - Neither the name of Oracle Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package ensemble.samples.scenegraph.events.keyevent;
import javafx.application.Application;
import javafx.collections.FXCollections;
import javafx.collections.ListChangeListener;
import javafx.event.EventHandler;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.scene.control.ListView;
import javafx.scene.control.TextField;
import javafx.scene.input.KeyEvent;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;
/**
* A sample that demonstrates various key events and their usage. Type in the
* text box to view the triggered events: key pressed, key typed and key
* released. Pressing the Shift, Ctrl, and Alt keys also trigger events.
*
* @sampleName KeyEvent
* @preview preview.png
* @see javafx.scene.input.KeyCode
* @see javafx.scene.input.KeyEvent
* @see javafx.event.EventHandler
* @embedded
*/
public class KeyEventApp extends Application {
public Parent createContent() {
//create a console for logging key events
final ListView console = new ListView(FXCollections.observableArrayList());
// listen on the console items and remove old ones when we get over 20 items
console.getItems().addListener((ListChangeListener.Change change) -> {
while (change.next()) {
if (change.getList().size() > 20.0) {
change.getList().remove(0);
}
}
});
console.setPrefHeight(150);
console.setMaxHeight(ListView.USE_PREF_SIZE);
// create text box for typing in
final TextField textBox = new TextField();
textBox.setPromptText("Write here");
textBox.setStyle("-fx-font-size: 34;");
//add a key listeners
textBox.setOnKeyPressed((KeyEvent ke) -> {
console.getItems().add("Key Pressed: " + ke.getText());
});
textBox.setOnKeyReleased((KeyEvent ke) -> {
console.getItems().add("Key Released: " + ke.getText());
});
textBox.setOnKeyTyped((KeyEvent ke) -> {
String text = "Key Typed: " + ke.getCharacter();
if (ke.isAltDown()) {
text += " , alt down";
}
if (ke.isControlDown()) {
text += " , ctrl down";
}
if (ke.isMetaDown()) {
text += " , meta down";
}
if (ke.isShiftDown()) {
text += " , shift down";
}
console.getItems().add(text);
});
VBox vb = new VBox(10);
vb.getChildren().addAll(textBox, console);
return vb;
}
@Override
public void start(Stage primaryStage) throws Exception {
primaryStage.setScene(new Scene(createContent()));
primaryStage.show();
}
/**
* Java main for when running without JavaFX launcher
* @param args command line arguments
*/
public static void main(String[] args) {
launch(args);
}
}