1 /*
2 * Copyright (c) 2008, 2016, Oracle and/or its affiliates.
3 * All rights reserved. Use is subject to license terms.
4 *
5 * This file is available and licensed under the following license:
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 *
11 * - Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * - Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in
15 * the documentation and/or other materials provided with the distribution.
16 * - Neither the name of Oracle Corporation nor the names of its
17 * contributors may be used to endorse or promote products derived
18 * from this software without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
23 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
24 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
25 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
26 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
30 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 */
32 package ensemble.samples.graphics2d.images.imageoperator;
33
34 import javafx.application.Application;
35 import javafx.beans.InvalidationListener;
36 import javafx.beans.Observable;
37 import javafx.beans.property.DoubleProperty;
38 import javafx.beans.property.SimpleDoubleProperty;
39 import javafx.scene.Parent;
40 import javafx.scene.Scene;
41 import javafx.scene.image.Image;
42 import javafx.scene.image.ImageView;
43 import javafx.scene.image.PixelWriter;
44 import javafx.scene.image.WritableImage;
45 import javafx.scene.layout.StackPane;
46 import javafx.scene.paint.Color;
47 import javafx.stage.Stage;
48
49 /**
50 * A sample that demonstrates the use of two different constructors in the Image
51 * class.
52 *
53 * @sampleName Image Operation
54 * @preview preview.png
55 * @docUrl http://docs.oracle.com/javase/8/javafx/graphics-tutorial/image_ops.htm#JFXGR238 JavaFX Image Operations
56 * @playground gridSize (name="Grid Size", min=0, max=10)
57 * @playground hueFactor (name="Hue Factor", min=0, max=32)
58 * @playground hueOffset (name="Hue Offset", min=0, max=360)
59 * @see javafx.scene.image.Image
60 * @see javafx.scene.image.ImageView
61 * @see javafx.scene.image.PixelWriter
62 * @see javafx.scene.image.WritableImage
63 *
64 * @related /Graphics 2d/Images/Image Creation
65 * @related /Graphics 2d/Images/Image Properties
66 */
67 public class ImageOperationApp extends Application {
68 private final DoubleProperty gridSize = new SimpleDoubleProperty(3.0);
69 public final DoubleProperty gridSizeProperty() {
70 return gridSize;
71 }
72
73 private final DoubleProperty hueFactor = new SimpleDoubleProperty(12.0);
74 public final DoubleProperty hueFactorProperty() {
75 return hueFactor;
76 }
77
78 private final DoubleProperty hueOffset = new SimpleDoubleProperty(240.0);
79 public final DoubleProperty hueOffsetProperty() {
80 return hueOffset;
81 }
82
83 private static void renderImage(WritableImage img, double gridSize,
84 double hueFactor, double hueOffset) {
85 PixelWriter pw = img.getPixelWriter();
86 double w = img.getWidth();
87 double h = img.getHeight();
88 double xRatio = 0.0;
89 double yRatio = 0.0;
90 double hue = 0.0;
91
92 for (int y = 0; y < h; y++) {
93 for (int x = 0; x < w; x++) {
94 xRatio = x/w;
95 yRatio = y/h;
96 hue = Math.sin(yRatio*(gridSize*Math.PI)) *
97 Math.sin(xRatio*(gridSize*Math.PI)) *
98 Math.tan(hueFactor / 20.0) * 360.0 + hueOffset;
99 Color c = Color.hsb(hue, 1.0, 1.0);
100 pw.setColor(x, y, c);
101 }
102 }
103 }
104 public Parent createContent() {
105 StackPane root = new StackPane();
106 final WritableImage img = new WritableImage(200, 200);
107 gridSize.addListener((Observable observable) -> {
108 renderImage(img, gridSize.doubleValue(),
109 hueFactor.doubleValue(), hueOffset.doubleValue());
110 });
111 hueFactor.addListener((Observable observable) -> {
112 renderImage(img, gridSize.doubleValue(),
113 hueFactor.doubleValue(), hueOffset.doubleValue());
114 });
115 hueOffset.addListener((Observable observable) -> {
116 renderImage(img, gridSize.doubleValue(),
117 hueFactor.doubleValue(), hueOffset.doubleValue());
118 });
119 renderImage(img, 3.0, 12.0, 240.0);
120
121 ImageView view = new ImageView(img);
122 root.getChildren().add(view);
123
124 return root;
125 }
126
127 @Override public void start(Stage primaryStage) throws Exception {
128 primaryStage.setScene(new Scene(createContent()));
129 primaryStage.show();
130 }
131
132 /** Java main for when running without JavaFX launcher
133 * @param args command line arguments
134 */
135 public static void main(String[] args) {
136 launch(args);
137 }
138 }