1 /*
2 * Copyright (c) 2008, 2014, 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.scenegraph.events.gestureevent;
33
34 import javafx.application.Application;
35 import javafx.collections.FXCollections;
36 import javafx.collections.ObservableList;
37 import javafx.event.EventHandler;
38 import javafx.scene.Cursor;
39 import javafx.scene.Node;
40 import javafx.scene.Parent;
41 import javafx.scene.Scene;
42 import javafx.scene.control.ListView;
43 import javafx.scene.input.RotateEvent;
44 import javafx.scene.input.ScrollEvent;
45 import javafx.scene.input.SwipeEvent;
46 import javafx.scene.input.TouchEvent;
47 import javafx.scene.input.ZoomEvent;
48 import javafx.scene.layout.Pane;
49 import javafx.scene.layout.VBox;
50 import javafx.scene.paint.Color;
51 import javafx.scene.paint.CycleMethod;
52 import javafx.scene.paint.LinearGradient;
53 import javafx.scene.paint.Stop;
54 import javafx.scene.shape.Rectangle;
55 import javafx.stage.Stage;
56
57 /**
58 * A sample that demonstrates various multi-touch gesture events and their usage.
59 * Tap, scroll and pan to move the rectangle. Use pinch close and open zoom
60 * gestures to resize it. User rotate touch gesture to rotate it.
61 * Swipe events are reported but not wired to any other behavior.
62 * All events are logged to the console. You can also observe inertia scrolling.
63 *
64 * @sampleName Gesture Event
65 * @preview preview.png
66 * @related /Scenegraph/Events/MouseEvent
67 * @related /Scenegraph/Events/Multi-Touch
68 * @see javafx.scene.input.RotateEvent
69 * @see javafx.scene.input.ScrollEvent
70 * @see javafx.scene.input.SwipeEvent
71 * @see javafx.scene.input.TouchEvent
72 * @see javafx.scene.input.ZoomEvent
73 * @see javafx.scene.Cursor
74 * @see javafx.collections.FXCollections
75 * @see javafx.collections.ObservableList
76 * @see javafx.event.EventHandler
77 * @see javafx.scene.control.ListView
78 * @see javafx.scene.layout.VBox
79 * @see javafx.scene.paint.Color
80 * @see javafx.scene.paint.CycleMethod
81 * @see javafx.scene.paint.LinearGradient
82 * @see javafx.scene.paint.Stop
83 * @see javafx.scene.shape.Rectangle
84 * @see javafx.scene.layout.Pane
85 * @embedded
86 */
87 public class GestureEventApp extends Application {
88
89 private final static int SAMPLE_SCREEN_WIDTH = 400;
90 private final static int SAMPLE_SCREEN_HEIGHT = 380;
91 private final static int CONSOLE_WIDTH = 400;
92 private final static int CONSOLE_HEIGHT = 80;
93 private final static int BORDER_HEIGHT = SAMPLE_SCREEN_HEIGHT - CONSOLE_HEIGHT;
94
95 // some offset minus BORDER_HEIGHT so it's not off in the corner
96 private final static int SMALL_REC_Y = 20 - BORDER_HEIGHT;
97
98 //some offset so it's not off in the corner
99 private final static int SMALL_REC_X = 30;
100
101 //create a console for logging mouse events
102 final ListView<String> console = new ListView<>();
103
104 //create a observableArrayList of logged events that will be listed in console
105 final ObservableList<String> consoleObservableList = FXCollections.observableArrayList();
106
107 private String lastEvent = "";
108 private int lastEventCount = 0;
109
110 public Parent createContent() {
111 //set up the console
112 console.setItems(consoleObservableList);
113 console.setPrefSize(CONSOLE_WIDTH, CONSOLE_HEIGHT);
114 console.setMinSize(ListView.USE_PREF_SIZE, ListView.USE_PREF_SIZE);
115 console.setMaxSize(ListView.USE_PREF_SIZE, ListView.USE_PREF_SIZE);
116 VBox root = new VBox();
117 root.setSpacing(2);
118 root.setPrefSize(SAMPLE_SCREEN_WIDTH, SAMPLE_SCREEN_HEIGHT);
119 root.setMinSize(SAMPLE_SCREEN_WIDTH, SAMPLE_SCREEN_HEIGHT);
120 root.setMaxSize(SAMPLE_SCREEN_WIDTH, SAMPLE_SCREEN_HEIGHT);
121
122 Rectangle border = new Rectangle(400, BORDER_HEIGHT);
123 border.setStroke(Color.GRAY);
124 border.setFill(new LinearGradient(0, 0, 0, 1, true, CycleMethod.NO_CYCLE, new Stop[]{
125 new Stop(1, Color.rgb(156, 216, 255)),
126 new Stop(0, Color.rgb(156, 216, 255, 0.5))
127 }));
128
129 final Rectangle smallRec = createRectangle();
130 smallRec.setTranslateX(SMALL_REC_X);
131 smallRec.setTranslateY(SMALL_REC_Y);
132 Pane box = new Pane();
133 box.getChildren().addAll(border, smallRec);
134 setEventListeners(root, smallRec, "From background--");
135 root.getChildren().addAll(console, border, smallRec);
136
137 return root;
138 }
139
140 private Rectangle createRectangle() {
141 final Rectangle smallRec = new Rectangle(100, 100, 100, 100);
142 LinearGradient gradient1 = new LinearGradient(0, 0, 0, 1, true, CycleMethod.NO_CYCLE, new Stop[]{
143 new Stop(0, Color.ANTIQUEWHITE),
144 new Stop(1, Color.CORAL)
145 });
146 smallRec.setFill(gradient1);
147 smallRec.setStroke(Color.BLACK);
148 smallRec.setCursor(Cursor.HAND);
149 setEventListeners(smallRec, smallRec, "From rectangle--");
150
151 return smallRec;
152 }
153
154 private void showOnConsole(String text) {
155 if (lastEvent.equals(text)) {
156 lastEventCount++;
157 consoleObservableList.set(consoleObservableList.size() - 1,
158 text + " (" + lastEventCount + " times)");
159 } else {
160 if (consoleObservableList.size() == 500) {
161 consoleObservableList.remove(0);
162 }
163 consoleObservableList.add(text);
164 console.scrollTo(consoleObservableList.size());
165 lastEvent = text;
166 lastEventCount = 1;
167 }
168 }
169
170 private void setEventListeners(final Node listeningNode, final Rectangle rec, final String msgPrefix) {
171 listeningNode.setOnSwipeDown((SwipeEvent se) -> {
172 showOnConsole(msgPrefix + "SwipeDown event");
173 se.consume();
174 });
175
176 listeningNode.setOnSwipeUp((SwipeEvent se) -> {
177 showOnConsole(msgPrefix + "SwipeUp event");
178 se.consume();
179 });
180
181 listeningNode.setOnSwipeLeft((SwipeEvent se) -> {
182 showOnConsole(msgPrefix + "SwipeLeft event");
183 se.consume();
184 });
185
186 listeningNode.setOnSwipeRight((SwipeEvent se) -> {
187 showOnConsole(msgPrefix + "SwipeRight event");
188 se.consume();
189 });
190
191 listeningNode.setOnTouchStationary((TouchEvent se) -> {
192 showOnConsole(msgPrefix + "TouchStationary event");
193 se.consume();
194 });
195
196 listeningNode.setOnScroll((ScrollEvent event) -> {
197 // scroll amount
198 double translateX = event.getDeltaX();
199 double translateY = event.getDeltaY();
200
201 if ((rec.getTranslateX() + translateX > 0) && (rec.getTranslateX() + translateX < 300)) {
202 rec.setTranslateX(rec.getTranslateX() + translateX);
203 }
204 if ((rec.getTranslateY() + translateY > SMALL_REC_Y - 20) && (rec.getTranslateY() + translateY < 180 + SMALL_REC_Y)) {
205 rec.setTranslateY(rec.getTranslateY() + translateY);
206 }
207 showOnConsole(msgPrefix + "Scroll event");
208 event.consume();
209 });
210
211 listeningNode.setOnZoom((ZoomEvent event) -> {
212 rec.setScaleX(rec.getScaleX() * event.getZoomFactor());
213 rec.setScaleY(rec.getScaleY() * event.getZoomFactor());
214 showOnConsole(msgPrefix + "Zoom event");
215 event.consume();
216 });
217
218 listeningNode.setOnRotate((RotateEvent event) -> {
219 rec.setRotate(rec.getRotate() + event.getAngle());
220 showOnConsole(msgPrefix + "Rotate event");
221 event.consume();
222 });
223
224 listeningNode.setOnScrollStarted((ScrollEvent event) -> {
225 showOnConsole(msgPrefix + "Scroll started");
226 event.consume();
227 });
228
229 listeningNode.setOnScrollFinished((ScrollEvent event) -> {
230 showOnConsole(msgPrefix + "Scroll finished");
231 event.consume();
232 });
233
234 listeningNode.setOnZoomStarted((ZoomEvent event) -> {
235 showOnConsole(msgPrefix + "Zoom started");
236 event.consume();
237 });
238
239 listeningNode.setOnZoomFinished((ZoomEvent event) -> {
240 showOnConsole(msgPrefix + "Zoom finished");
241 event.consume();
242 });
243
244 listeningNode.setOnRotationStarted((RotateEvent event) -> {
245 showOnConsole(msgPrefix + "Rotation started");
246 event.consume();
247 });
248
249 listeningNode.setOnRotationFinished((RotateEvent event) -> {
250 showOnConsole(msgPrefix + "Rotation finished");
251 event.consume();
252 });
253 }
254
255 @Override
256 public void start(Stage primaryStage) throws Exception {
257 primaryStage.setScene(new Scene(createContent()));
258 primaryStage.show();
259 }
260
261 /**
262 * Java main for when running without JavaFX launcher
263 * @param args command line arguments
264 */
265 public static void main(String[] args) {
266 launch(args);
267 }
268 }