1 /*
   2  * Copyright (c) 2014, 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 import javafx.application.Application;
  29 import javafx.geometry.Insets;
  30 import javafx.scene.Scene;
  31 import javafx.scene.control.ToggleButton;
  32 import javafx.scene.control.ToggleGroup;
  33 import javafx.scene.layout.VBox;
  34 import javafx.stage.Stage;
  35 
  36 import com.sun.javafx.application.PlatformImpl;
  37 import com.sun.javafx.css.StyleManager;
  38 
  39 public class HelloHighContrast extends Application {
  40 
  41     public static void main(String[] args) {
  42         Application.launch(args);
  43     }
  44 
  45     @Override public void start(Stage stage) {
  46         final ToggleGroup group = new ToggleGroup();
  47         group.selectedToggleProperty().addListener(ov -> {
  48             String userData = (String) (group.getSelectedToggle() != null ? group.getSelectedToggle().getUserData() : null);
  49             if (userData != null) {
  50                 System.setProperty("com.sun.javafx.highContrastTheme", userData);
  51             } else {
  52                 System.clearProperty("com.sun.javafx.highContrastTheme");
  53             }
  54             PlatformImpl.setAccessibilityTheme(null); // Reads the system property
  55         });
  56         
  57         ToggleButton disableHighContrast = new ToggleButton("Disable High Contrast");
  58         disableHighContrast.setMaxWidth(Double.MAX_VALUE);
  59         disableHighContrast.setUserData(null);
  60         disableHighContrast.setToggleGroup(group);
  61         disableHighContrast.setSelected(true);
  62 
  63         ToggleButton whiteOnBlackBtn = new ToggleButton("White on black");
  64         whiteOnBlackBtn.setMaxWidth(Double.MAX_VALUE);
  65         whiteOnBlackBtn.setUserData("WHITEONBLACK");
  66         whiteOnBlackBtn.setToggleGroup(group);
  67 
  68         ToggleButton blackOnWhiteBtn = new ToggleButton("Black on white");
  69         blackOnWhiteBtn.setMaxWidth(Double.MAX_VALUE);
  70         blackOnWhiteBtn.setUserData("BLACKONWHITE");
  71         blackOnWhiteBtn.setToggleGroup(group);
  72 
  73         ToggleButton yellowOnBlackBtn = new ToggleButton("Yellow on black");
  74         yellowOnBlackBtn.setMaxWidth(Double.MAX_VALUE);
  75         yellowOnBlackBtn.setUserData("YELLOWONBLACK");
  76         yellowOnBlackBtn.setToggleGroup(group);
  77 
  78         VBox vbox = new VBox(10, disableHighContrast, whiteOnBlackBtn, blackOnWhiteBtn, yellowOnBlackBtn);
  79         vbox.setPadding(new Insets(10));
  80 
  81         Scene scene = new Scene(vbox);
  82 
  83         stage.setScene(scene);
  84         stage.setWidth(200);
  85         stage.setHeight(200);
  86         stage.show();
  87     }
  88 }