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/*
* Copyright (c) 2008, 2014, Oracle and/or its affiliates.
* All rights reserved. Use is subject to license terms.
*
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* 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
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package ensemble.samples.scenegraph.events.gestureevent;
import javafx.application.Application;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.event.EventHandler;
import javafx.scene.Cursor;
import javafx.scene.Node;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.scene.control.ListView;
import javafx.scene.input.RotateEvent;
import javafx.scene.input.ScrollEvent;
import javafx.scene.input.SwipeEvent;
import javafx.scene.input.TouchEvent;
import javafx.scene.input.ZoomEvent;
import javafx.scene.layout.Pane;
import javafx.scene.layout.VBox;
import javafx.scene.paint.Color;
import javafx.scene.paint.CycleMethod;
import javafx.scene.paint.LinearGradient;
import javafx.scene.paint.Stop;
import javafx.scene.shape.Rectangle;
import javafx.stage.Stage;
/**
* A sample that demonstrates various multi-touch gesture events and their usage.
* Tap, scroll and pan to move the rectangle. Use pinch close and open zoom
* gestures to resize it. User rotate touch gesture to rotate it.
* Swipe events are reported but not wired to any other behavior.
* All events are logged to the console. You can also observe inertia scrolling.
*
* @sampleName Gesture Event
* @preview preview.png
* @related /Scenegraph/Events/MouseEvent
* @related /Scenegraph/Events/Multi-Touch
* @see javafx.scene.input.RotateEvent
* @see javafx.scene.input.ScrollEvent
* @see javafx.scene.input.SwipeEvent
* @see javafx.scene.input.TouchEvent
* @see javafx.scene.input.ZoomEvent
* @see javafx.scene.Cursor
* @see javafx.collections.FXCollections
* @see javafx.collections.ObservableList
* @see javafx.event.EventHandler
* @see javafx.scene.control.ListView
* @see javafx.scene.layout.VBox
* @see javafx.scene.paint.Color
* @see javafx.scene.paint.CycleMethod
* @see javafx.scene.paint.LinearGradient
* @see javafx.scene.paint.Stop
* @see javafx.scene.shape.Rectangle
* @see javafx.scene.layout.Pane
* @embedded
*/
public class GestureEventApp extends Application {
private final static int SAMPLE_SCREEN_WIDTH = 400;
private final static int SAMPLE_SCREEN_HEIGHT = 380;
private final static int CONSOLE_WIDTH = 400;
private final static int CONSOLE_HEIGHT = 80;
private final static int BORDER_HEIGHT = SAMPLE_SCREEN_HEIGHT - CONSOLE_HEIGHT;
// some offset minus BORDER_HEIGHT so it's not off in the corner
private final static int SMALL_REC_Y = 20 - BORDER_HEIGHT;
//some offset so it's not off in the corner
private final static int SMALL_REC_X = 30;
//create a console for logging mouse events
final ListView console = new ListView<>();
//create a observableArrayList of logged events that will be listed in console
final ObservableList consoleObservableList = FXCollections.observableArrayList();
private String lastEvent = "";
private int lastEventCount = 0;
public Parent createContent() {
//set up the console
console.setItems(consoleObservableList);
console.setPrefSize(CONSOLE_WIDTH, CONSOLE_HEIGHT);
console.setMinSize(ListView.USE_PREF_SIZE, ListView.USE_PREF_SIZE);
console.setMaxSize(ListView.USE_PREF_SIZE, ListView.USE_PREF_SIZE);
VBox root = new VBox();
root.setSpacing(2);
root.setPrefSize(SAMPLE_SCREEN_WIDTH, SAMPLE_SCREEN_HEIGHT);
root.setMinSize(SAMPLE_SCREEN_WIDTH, SAMPLE_SCREEN_HEIGHT);
root.setMaxSize(SAMPLE_SCREEN_WIDTH, SAMPLE_SCREEN_HEIGHT);
Rectangle border = new Rectangle(400, BORDER_HEIGHT);
border.setStroke(Color.GRAY);
border.setFill(new LinearGradient(0, 0, 0, 1, true, CycleMethod.NO_CYCLE, new Stop[]{
new Stop(1, Color.rgb(156, 216, 255)),
new Stop(0, Color.rgb(156, 216, 255, 0.5))
}));
final Rectangle smallRec = createRectangle();
smallRec.setTranslateX(SMALL_REC_X);
smallRec.setTranslateY(SMALL_REC_Y);
Pane box = new Pane();
box.getChildren().addAll(border, smallRec);
setEventListeners(root, smallRec, "From background--");
root.getChildren().addAll(console, border, smallRec);
return root;
}
private Rectangle createRectangle() {
final Rectangle smallRec = new Rectangle(100, 100, 100, 100);
LinearGradient gradient1 = new LinearGradient(0, 0, 0, 1, true, CycleMethod.NO_CYCLE, new Stop[]{
new Stop(0, Color.ANTIQUEWHITE),
new Stop(1, Color.CORAL)
});
smallRec.setFill(gradient1);
smallRec.setStroke(Color.BLACK);
smallRec.setCursor(Cursor.HAND);
setEventListeners(smallRec, smallRec, "From rectangle--");
return smallRec;
}
private void showOnConsole(String text) {
if (lastEvent.equals(text)) {
lastEventCount++;
consoleObservableList.set(consoleObservableList.size() - 1,
text + " (" + lastEventCount + " times)");
} else {
if (consoleObservableList.size() == 500) {
consoleObservableList.remove(0);
}
consoleObservableList.add(text);
console.scrollTo(consoleObservableList.size());
lastEvent = text;
lastEventCount = 1;
}
}
private void setEventListeners(final Node listeningNode, final Rectangle rec, final String msgPrefix) {
listeningNode.setOnSwipeDown((SwipeEvent se) -> {
showOnConsole(msgPrefix + "SwipeDown event");
se.consume();
});
listeningNode.setOnSwipeUp((SwipeEvent se) -> {
showOnConsole(msgPrefix + "SwipeUp event");
se.consume();
});
listeningNode.setOnSwipeLeft((SwipeEvent se) -> {
showOnConsole(msgPrefix + "SwipeLeft event");
se.consume();
});
listeningNode.setOnSwipeRight((SwipeEvent se) -> {
showOnConsole(msgPrefix + "SwipeRight event");
se.consume();
});
listeningNode.setOnTouchStationary((TouchEvent se) -> {
showOnConsole(msgPrefix + "TouchStationary event");
se.consume();
});
listeningNode.setOnScroll((ScrollEvent event) -> {
// scroll amount
double translateX = event.getDeltaX();
double translateY = event.getDeltaY();
if ((rec.getTranslateX() + translateX > 0) && (rec.getTranslateX() + translateX < 300)) {
rec.setTranslateX(rec.getTranslateX() + translateX);
}
if ((rec.getTranslateY() + translateY > SMALL_REC_Y - 20) && (rec.getTranslateY() + translateY < 180 + SMALL_REC_Y)) {
rec.setTranslateY(rec.getTranslateY() + translateY);
}
showOnConsole(msgPrefix + "Scroll event");
event.consume();
});
listeningNode.setOnZoom((ZoomEvent event) -> {
rec.setScaleX(rec.getScaleX() * event.getZoomFactor());
rec.setScaleY(rec.getScaleY() * event.getZoomFactor());
showOnConsole(msgPrefix + "Zoom event");
event.consume();
});
listeningNode.setOnRotate((RotateEvent event) -> {
rec.setRotate(rec.getRotate() + event.getAngle());
showOnConsole(msgPrefix + "Rotate event");
event.consume();
});
listeningNode.setOnScrollStarted((ScrollEvent event) -> {
showOnConsole(msgPrefix + "Scroll started");
event.consume();
});
listeningNode.setOnScrollFinished((ScrollEvent event) -> {
showOnConsole(msgPrefix + "Scroll finished");
event.consume();
});
listeningNode.setOnZoomStarted((ZoomEvent event) -> {
showOnConsole(msgPrefix + "Zoom started");
event.consume();
});
listeningNode.setOnZoomFinished((ZoomEvent event) -> {
showOnConsole(msgPrefix + "Zoom finished");
event.consume();
});
listeningNode.setOnRotationStarted((RotateEvent event) -> {
showOnConsole(msgPrefix + "Rotation started");
event.consume();
});
listeningNode.setOnRotationFinished((RotateEvent event) -> {
showOnConsole(msgPrefix + "Rotation finished");
event.consume();
});
}
@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);
}
}
