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An Open Source JavaFX PDF Viewer
/*
* ===========================================
* Java Pdf Extraction Decoding Access Library
* ===========================================
*
* Project Info: http://www.idrsolutions.com
* Help section for developers at http://www.idrsolutions.com/support/
*
* (C) Copyright 1997-2015 IDRsolutions and Contributors.
*
* This file is part of JPedal/JPDF2HTML5
*
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* ---------------
* FXStartup.java
* ---------------
*/
package org.jpedal.examples.viewer;
import java.util.List;
import javafx.animation.FadeTransition;
import javafx.application.Application;
import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.concurrent.Task;
import javafx.concurrent.Worker;
import javafx.event.ActionEvent;
import javafx.event.Event;
import javafx.event.EventHandler;
import javafx.geometry.Pos;
import javafx.geometry.Rectangle2D;
import javafx.scene.Scene;
import javafx.scene.control.Label;
import javafx.scene.control.ProgressBar;
import javafx.scene.effect.DropShadow;
import javafx.scene.image.ImageView;
import javafx.scene.layout.Pane;
import javafx.scene.layout.VBox;
import javafx.stage.Screen;
import javafx.stage.Stage;
import javafx.stage.StageStyle;
import javafx.util.Duration;
import static org.jpedal.examples.viewer.OpenViewerFX.checkUserJavaVersion;
import org.jpedal.parser.DecoderOptions;
/**
* startup our Viewer as Application and allow user to access Viewer
*/
public class FXStartup extends Application {
private ProgressBar loadProgress;
private Label progressText;
OpenViewerFX viewer;
private Pane splashLayout;
private final Stage splashStage = new Stage();
private static final int SPLASH_WIDTH = 600;
private static final int SPLASH_HEIGHT = 200;
public static void main(final String[] args) {
DecoderOptions.javaVersion = Float.parseFloat(System.getProperty("java.specification.version"));
checkUserJavaVersion();
launch(args);
}
@Override
//Initalising the stage for the SplashScreen
public void init()
{
final String imgPath;
final String barColour;
//
//setup reader image
imgPath="/org/jpedal/examples/viewer/res/OSFXSplash.png";
barColour =("-fx-accent: purple;");
/*
*/
final ImageView splash = new ImageView(getClass().getResource(imgPath).toExternalForm());
loadProgress = new ProgressBar();
loadProgress.setPrefWidth(SPLASH_WIDTH);
progressText = new Label("All modules are loaded.");
loadProgress.setStyle(barColour);
splashLayout = new VBox();
splashLayout.getChildren().addAll(splash, loadProgress, progressText);
progressText.setAlignment(Pos.CENTER);
splashLayout.setEffect(new DropShadow());
}
@Override
public void start(final Stage initstage){
final boolean showSplashScreen = false;
if(showSplashScreen){
System.out.println("Starting the SplashScreen");
final Task> loadModsTask = new Task() {
@Override
protected ObservableList call() throws InterruptedException {
final ObservableList loadMods
= FXCollections.observableArrayList();
final ObservableList availableFriends
= FXCollections.observableArrayList("Network Module", "User Module", "User Interface", "User Controls");
updateMessage("Loading. . .");
for (int i = 0; i < availableFriends.size(); i++) {
Thread.sleep(900);
updateProgress(i + 1, availableFriends.size());
final String nextFriend = availableFriends.get(i);
loadMods.add(nextFriend);
updateMessage("Loading . . . " + nextFriend);
}
Thread.sleep(500);
updateMessage("All Modules are loaded.");
return loadMods;
}
};
showSplash(loadModsTask);
loadModsTask.setOnSucceeded(new EventHandler() {
@Override
public void handle(final Event event) {
startNew(initstage);
}
});
new Thread(loadModsTask).start();
}
//if debug not true then start viewer
else{
startNew(initstage);
}
}
//starting the FXViewer Stage
public void startNew(final Stage stage){
final List args = this.getParameters().getUnnamed();
viewer = new OpenViewerFX(stage,args.toArray(new String[args.size()]));
viewer.setupViewer();
}
//Starting the splash screen
private void showSplash(final Task task){
progressText.textProperty().bind(task.messageProperty());
loadProgress.progressProperty().bind(task.progressProperty());
task.stateProperty().addListener(new ChangeListener()
{
@Override
public void changed(final ObservableValue observableValue, final Worker.State oldState, final Worker.State newState)
{
if (newState == Worker.State.SUCCEEDED)
{
loadProgress.progressProperty().unbind();
loadProgress.setProgress(1);
splashStage.toFront();
final FadeTransition fadeSplash = new FadeTransition(Duration.seconds(1.2), splashLayout);
fadeSplash.setFromValue(1.0);
fadeSplash.setToValue(0.0);
fadeSplash.setOnFinished(new EventHandler()
{
@Override
public void handle(final ActionEvent actionEvent)
{
splashStage.hide();
}
});
fadeSplash.play();
}
}
});
final Scene splashScene = new Scene(splashLayout);
splashStage.initStyle(StageStyle.UNDECORATED);
final Rectangle2D bounds = Screen.getPrimary().getBounds();
splashStage.setScene(splashScene);
splashStage.setX(bounds.getMinX() + bounds.getWidth() / 2 - SPLASH_WIDTH / 2);
splashStage.setY(bounds.getMinY() + bounds.getHeight() / 2 - SPLASH_HEIGHT / 2);
splashStage.show();
}
public OpenViewerFX getViewer(){
return viewer;
}
}