Java tutorial
/* * Copyright (c) 2011 Oracle and/or its affiliates. * All rights reserved. Use is subject to license terms. * * This file is available and licensed under the following license: * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * 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 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 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ import javafx.application.Application; import javafx.application.Platform; import javafx.beans.InvalidationListener; import javafx.beans.Observable; import javafx.event.ActionEvent; import javafx.event.EventHandler; import javafx.geometry.Insets; import javafx.geometry.Pos; import javafx.scene.Group; import javafx.scene.Scene; import javafx.scene.control.Button; import javafx.scene.control.Label; import javafx.scene.control.Slider; import javafx.scene.layout.BorderPane; import javafx.scene.layout.HBox; import javafx.scene.layout.Pane; import javafx.scene.layout.Priority; import javafx.scene.layout.Region; import javafx.scene.media.Media; import javafx.scene.media.MediaPlayer; import javafx.scene.media.MediaPlayer.Status; import javafx.scene.media.MediaView; import javafx.stage.Stage; import javafx.util.Duration; class MediaControl extends BorderPane { private MediaPlayer mp; private MediaView mediaView; private final boolean repeat = false; private boolean stopRequested = false; private boolean atEndOfMedia = false; private Duration duration; private Slider timeSlider; private Label playTime; private Slider volumeSlider; private HBox mediaBar; public MediaControl(final MediaPlayer mp) { this.mp = mp; setStyle("-fx-background-color: #bfc2c7;"); mediaView = new MediaView(mp); Pane mvPane = new Pane() { }; mvPane.getChildren().add(mediaView); mvPane.setStyle("-fx-background-color: black;"); setCenter(mvPane); mediaBar = new HBox(); mediaBar.setAlignment(Pos.CENTER); mediaBar.setPadding(new Insets(5, 10, 5, 10)); BorderPane.setAlignment(mediaBar, Pos.CENTER); final Button playButton = new Button(">"); playButton.setOnAction(new EventHandler<ActionEvent>() { public void handle(ActionEvent e) { Status status = mp.getStatus(); if (status == Status.UNKNOWN || status == Status.HALTED) { // don't do anything in these states return; } if (status == Status.PAUSED || status == Status.READY || status == Status.STOPPED) { // rewind the movie if we're sitting at the end if (atEndOfMedia) { mp.seek(mp.getStartTime()); atEndOfMedia = false; } mp.play(); } else { mp.pause(); } } }); mp.currentTimeProperty().addListener(new InvalidationListener() { public void invalidated(Observable ov) { updateValues(); } }); mp.setOnPlaying(new Runnable() { public void run() { if (stopRequested) { mp.pause(); stopRequested = false; } else { playButton.setText("||"); } } }); mp.setOnPaused(new Runnable() { public void run() { System.out.println("onPaused"); playButton.setText(">"); } }); mp.setOnReady(new Runnable() { public void run() { duration = mp.getMedia().getDuration(); updateValues(); } }); mp.setCycleCount(repeat ? MediaPlayer.INDEFINITE : 1); mp.setOnEndOfMedia(new Runnable() { public void run() { if (!repeat) { playButton.setText(">"); stopRequested = true; atEndOfMedia = true; } } }); mediaBar.getChildren().add(playButton); // Add spacer Label spacer = new Label(" "); mediaBar.getChildren().add(spacer); // Add Time label Label timeLabel = new Label("Time: "); mediaBar.getChildren().add(timeLabel); // Add time slider timeSlider = new Slider(); HBox.setHgrow(timeSlider, Priority.ALWAYS); timeSlider.setMinWidth(50); timeSlider.setMaxWidth(Double.MAX_VALUE); timeSlider.valueProperty().addListener(new InvalidationListener() { public void invalidated(Observable ov) { if (timeSlider.isValueChanging()) { // multiply duration by percentage calculated by slider position mp.seek(duration.multiply(timeSlider.getValue() / 100.0)); } } }); mediaBar.getChildren().add(timeSlider); // Add Play label playTime = new Label(); playTime.setPrefWidth(130); playTime.setMinWidth(50); mediaBar.getChildren().add(playTime); // Add the volume label Label volumeLabel = new Label("Vol: "); mediaBar.getChildren().add(volumeLabel); // Add Volume slider volumeSlider = new Slider(); volumeSlider.setPrefWidth(70); volumeSlider.setMaxWidth(Region.USE_PREF_SIZE); volumeSlider.setMinWidth(30); volumeSlider.valueProperty().addListener(new InvalidationListener() { public void invalidated(Observable ov) { if (volumeSlider.isValueChanging()) { mp.setVolume(volumeSlider.getValue() / 100.0); } } }); mediaBar.getChildren().add(volumeSlider); setBottom(mediaBar); } protected void updateValues() { if (playTime != null && timeSlider != null && volumeSlider != null) { Platform.runLater(new Runnable() { public void run() { Duration currentTime = mp.getCurrentTime(); playTime.setText(formatTime(currentTime, duration)); timeSlider.setDisable(duration.isUnknown()); if (!timeSlider.isDisabled() && duration.greaterThan(Duration.ZERO) && !timeSlider.isValueChanging()) { timeSlider.setValue(currentTime.divide(duration).toMillis() * 100.0); } if (!volumeSlider.isValueChanging()) { volumeSlider.setValue((int) Math.round(mp.getVolume() * 100)); } } }); } } private static String formatTime(Duration elapsed, Duration duration) { int intElapsed = (int) Math.floor(elapsed.toSeconds()); int elapsedHours = intElapsed / (60 * 60); if (elapsedHours > 0) { intElapsed -= elapsedHours * 60 * 60; } int elapsedMinutes = intElapsed / 60; int elapsedSeconds = intElapsed - elapsedHours * 60 * 60 - elapsedMinutes * 60; if (duration.greaterThan(Duration.ZERO)) { int intDuration = (int) Math.floor(duration.toSeconds()); int durationHours = intDuration / (60 * 60); if (durationHours > 0) { intDuration -= durationHours * 60 * 60; } int durationMinutes = intDuration / 60; int durationSeconds = intDuration - durationHours * 60 * 60 - durationMinutes * 60; if (durationHours > 0) { return String.format("%d:%02d:%02d/%d:%02d:%02d", elapsedHours, elapsedMinutes, elapsedSeconds, durationHours, durationMinutes, durationSeconds); } else { return String.format("%02d:%02d/%02d:%02d", elapsedMinutes, elapsedSeconds, durationMinutes, durationSeconds); } } else { if (elapsedHours > 0) { return String.format("%d:%02d:%02d", elapsedHours, elapsedMinutes, elapsedSeconds); } else { return String.format("%02d:%02d", elapsedMinutes, elapsedSeconds); } } } } /** * * @author cmcastil */ public class Main extends Application { private static final String MEDIA_URL = "http://download.oracle.com/otndocs/products/javafx/oow2010-2.flv"; private static String arg1; /** * @param args * the command line arguments */ public static void main(String[] args) { launch(args); } @Override public void start(Stage primaryStage) { primaryStage.setTitle("Embedded Media Player"); Group root = new Group(); Scene scene = new Scene(root, 540, 241); // create media player Media media = new Media((arg1 != null) ? arg1 : MEDIA_URL); MediaPlayer mediaPlayer = new MediaPlayer(media); mediaPlayer.setAutoPlay(true); MediaControl mediaControl = new MediaControl(mediaPlayer); scene.setRoot(mediaControl); primaryStage.setScene(scene); primaryStage.show(); } }