1 /*
   2  * Copyright (c) 2010, 2015, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package hello;
  27 
  28 
  29 import javafx.application.Application;
  30 import javafx.scene.Group;
  31 import javafx.scene.Scene;
  32 import javafx.scene.control.Button;
  33 
  34 import javafx.stage.Stage;
  35 
  36 public class HelloButton extends Application {
  37     /**
  38      * @param args the command line arguments
  39      */
  40     public static void main(String[] args) {
  41         Application.launch(args);
  42     }
  43 
  44     @Override public void start(Stage stage) {
  45         stage.setTitle("Hello Button");
  46         Scene scene = new Scene(new Group(), 600, 450);
  47         Button button1 = new Button();
  48         button1.setText("Click Me");
  49         button1.setLayoutX(25);
  50         button1.setLayoutY(40);
  51 
  52         button1.setOnAction(e -> System.out.println("Event: " + e));
  53 
  54 //        // add new mappings
  55 //        // The J key should fire the button
  56 //        button1.getInputMap().getMappings().add(new KeyMapping(J, e -> button1.fire()));
  57 //
  58 //        // The SPACE key should no longer fire the button (and instead just print text to console)
  59 //        button1.getInputMap().getMappings().add(new KeyMapping(SPACE, e -> {
  60 //            System.out.println("This should replace the default action event!");
  61 //        }));
  62 //
  63 //        // The degenerate case where we accept all input - a null KeyCombination matches anything
  64 //        // and results in firing the button
  65 //        button1.getInputMap().getMappings().add(new KeyMapping(new KeyBinding(KEY_PRESSED), e -> {
  66 //            System.out.println("catch-all mapping caught event: " + e);
  67 //            button1.fire();
  68 //        }));
  69 //
  70 //
  71 //        // test one: lookup the J mapping and disable it
  72 //        button1.getInputMap().lookupMapping(new KeyBinding(J)).ifPresent(mapping -> {
  73 //            System.out.println("disabling J key mapping");
  74 //            mapping.setDisabled(true);
  75 //        });
  76 //
  77 //        // test two: the degenerate case - we need to iterate through the mappings
  78 //        // to find the null keyCombination, so that we may install an interceptor
  79 //        // to block the tab key. This means all keys except tab will work.
  80 ////        button1.getInputMap().lookupMapping(new KeyBinding(KEY_TYPED)).ifPresent(mapping -> {
  81 ////            System.out.println("adding interceptor for Tab key mapping");
  82 ////            mapping.getInterceptors().add(event -> {
  83 ////                if (! (event instanceof KeyEvent)) return true;
  84 ////                return KeyCode.TAB != ((KeyEvent)event).getCode();
  85 ////            });
  86 ////        });
  87 ////        button1.getInputMap().getInterceptors().add(event -> {
  88 ////            if (! (event instanceof KeyEvent)) return true;
  89 ////            return KeyCode.X != ((KeyEvent)event).getCode();
  90 ////        });
  91 //
  92 //        button1.getInputMap().getInterceptors().add(new KeyMappingInterceptor(new KeyBinding(SPACE)));
  93 //
  94 //        // test three: remove a mapping
  95 //        button1.getInputMap().lookupMapping(new KeyBinding(J)).ifPresent(mapping -> {
  96 //            System.out.println("removing J key mapping");
  97 //            button1.getInputMap().getMappings().remove(mapping);
  98 //        });
  99 //
 100 //        scene.getRoot().addEventHandler(KeyEvent.ANY, e -> System.out.println("e = " + e));
 101 
 102 
 103         ((Group)scene.getRoot()).getChildren().add(button1);
 104 
 105         Button button2 = new Button();
 106         button2.setText("Click Me Too");
 107         button2.setLayoutX(25);
 108         button2.layoutYProperty().bind(button1.heightProperty().add(button1.layoutYProperty()));
 109         ((Group)scene.getRoot()).getChildren().add(button2);
 110 //
 111 //        Button button3 = new Button();
 112 //        button3.setText("Click Me Three");
 113 //        button3.setLayoutX(25);
 114 //        button3.layoutYProperty().bind(button2.heightProperty().add(button2.layoutYProperty()));
 115 //        ((Group)scene.getRoot()).getChildren().add(button3);
 116 
 117         stage.setScene(scene);
 118         stage.show();
 119     }
 120 }