org.jpedal.examples.viewer.OpenViewerFX Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of OpenViewerFX Show documentation
Show all versions of OpenViewerFX Show documentation
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 1997-2016 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
*
* ---------------
* OpenViewerFX.java
* ---------------
*/
package org.jpedal.examples.viewer;
import java.util.ResourceBundle;
import javafx.application.Platform;
import javafx.event.EventHandler;
import javafx.scene.Parent;
import javafx.scene.layout.BorderPane;
import javafx.stage.Stage;
import javafx.stage.WindowEvent;
import org.jpedal.PdfDecoderFX;
import org.jpedal.examples.viewer.gui.GUI;
import org.jpedal.examples.viewer.gui.JavaFxGUI;
import org.jpedal.examples.viewer.gui.javafx.JavaFXSearchWindow;
import org.jpedal.examples.viewer.gui.javafx.JavaFXThumbnailPanel;
import org.jpedal.examples.viewer.objects.FXClientExternalHandler;
import org.jpedal.external.Options;
import org.jpedal.objects.acroforms.actions.JavaFXDefaultActionHandler;
import org.jpedal.parser.DecoderOptions;
import org.jpedal.utils.LogWriter;
import org.jpedal.utils.Messages;
/** PDF Viewer
*
* If you are compiling, you will need to download all the examples source files from :
* How to View PDF File in Java.
*
* Run directly from jar with java -cp jpedal.jar org.jpedal.examples.viewer.FXStartup (needs Java8)
*
* There are plenty of tutorials on how to configure the Viewer on our website Support Section.
*
* See Here for Settings to Customise the PDF Viewer
*
* We also have our Swing Viewer documented at :
* Swing Viewer Documentation.
*
* If you want to implement your own there is
* a very simple example at :
* BaseOpenViewerFX Demo
*
We recommend you look at the full viewer as it is totally configurable and does everything for you.
*
*/
public class OpenViewerFX extends SharedViewer implements ViewerInt{
//flag if OS or commerical - DO NOT remove quotes as will break code
public static boolean isOpenFX = OpenViewerFX.class.getResourceAsStream("/org/jpedal/examples/viewer/Open"+"Viewer"+"FX.class")!= null;
static {
checkUserJavaVersion();
isFX = true;
}
private Stage stage;
private String[] args;
/**
* Base Constructor to use when starting Viewer as a stand alone Stage.
* Please ensure you call setupViewer after calling this constructor.
*
* @param stage Is of type Stage
* @param args Program arguments passed into the Viewer
*/
public OpenViewerFX(final Stage stage, final String[] args) {
this.stage = stage;
this.args = args;
init();
}
/**
* Constructor to use when embedding the JavaFX Viewer in your own
* JavaFX application, pass in your parentPane and the Viewer will
* become a child of the parentPane.
*
* Please ensure you call setupViewer after calling this constructor.
*
* To add the JavaFX Viewer to a Tab, please pass a
* Pane or ScrollPane and add the passed Pane to the Tab.
*
* @param parentPane Is a constructor of your own JavaFX application in which JavaFx Viewer will be embedded
* @param preferencesPath The path of the preferences file
*/
public OpenViewerFX(final Parent parentPane, final String preferencesPath) {
//Enable error messages which are OFF by default
DecoderOptions.showErrorMessages = true;
if (preferencesPath != null && !preferencesPath.isEmpty()) {
try {
properties.loadProperties(preferencesPath);
} catch (final Exception e) {
System.err.println("Specified Preferrences file not found at " + preferencesPath + ". If this file is within a jar ensure filename has jar: at the begining.\n\nLoading default properties. "+e);
properties.loadProperties();
}
} else {
properties.loadProperties();
}
init();
setRootContainer(parentPane);
}
/**
* Sets up the Viewer and Displays it.
*
* Please make sure you call this method
* after calling any constructor to initialise
* key components.
*/
@Override
public void setupViewer() {
super.setupViewer();
Platform.runLater(new Runnable() {
@Override
public void run() {
handleArguments(args);
if (stage != null) {
// We need to manually call dispose so that the AWT/Swing threads are killed off properly and the JVM can shut down cleanly
// see http://docs.oracle.com/javase/1.5.0/docs/api/java/awt/doc-files/AWTThreadIssues.html
stage.setOnCloseRequest(new EventHandler() {
@Override
public void handle(final WindowEvent t) {
currentCommands.executeCommand(Commands.EXIT, null);
}
});
}
}
});
}
void init() {
//load locale file
try {
Messages.setBundle(ResourceBundle.getBundle("org.jpedal.international.messages"));
} catch (final Exception e) {
LogWriter.writeLog("Exception " + e + " loading resource bundle.\n"
+ "Also check you have a file in org.jpedal.international.messages to support Locale=" + java.util.Locale.getDefault());
}
decode_pdf = new PdfDecoderFX();
thumbnails = new JavaFXThumbnailPanel(decode_pdf);
currentGUI = new JavaFxGUI(stage, decode_pdf, commonValues, thumbnails, properties);
decode_pdf.addExternalHandler(new JavaFXDefaultActionHandler(currentGUI), Options.FormsActionHandler);
decode_pdf.addExternalHandler(new FXClientExternalHandler(), Options.AdditionalHandler);
if(GUI.debugFX) {
System.out.println("OpenViewerFX init()");
}
searchFrame = new JavaFXSearchWindow(currentGUI);
currentCommands = new JavaFXCommands(commonValues, currentGUI, decode_pdf,
thumbnails, properties, searchFrame);
//enable error messages which are OFF by default
DecoderOptions.showErrorMessages=true;
final String prefFile = System.getProperty("org.jpedal.Viewer.Prefs");
if(prefFile != null){
properties.loadProperties(prefFile);
}else{
properties.loadProperties();
}
}
/**
* Allows the viewer to handle any JVM/Program arguments.
*
* @param args :: Program arguments passed into the Viewer.
*/
@Override
public void handleArguments(final String[] args) {
//Ensure default open is on event thread, otherwise the display is updated as values are changing
if (Platform.isFxApplicationThread()) {
if (args !=null && args.length > 0) {
openDefaultFile(args[0]);
} else if ((properties.getValue("openLastDocument").toLowerCase().equals("true")) &&
(properties.getRecentDocuments() != null
&& properties.getRecentDocuments().length > 1)) {
int lastPageViewed = Integer.parseInt(properties.getValue("lastDocumentPage"));
if (lastPageViewed < 0) {
lastPageViewed = 1;
}
openDefaultFileAtPage(properties.getRecentDocuments()[0], lastPageViewed);
}
} else {
final Runnable run = new Runnable() {
@Override
public void run() {
if (args.length > 0) {
openDefaultFile(args[0]);
} else if ((properties.getValue("openLastDocument").toLowerCase().equals("true")) &&
(properties.getRecentDocuments() != null
&& properties.getRecentDocuments().length > 1)){
int lastPageViewed = Integer.parseInt(properties.getValue("lastDocumentPage"));
if (lastPageViewed < 0) {
lastPageViewed = 1;
}
openDefaultFileAtPage(properties.getRecentDocuments()[0], lastPageViewed);
}
}
};
Platform.runLater(run);
}
}
/**
* Releases all resources used by the viewer - Please note this calls System.exit(0);
* This method has to be called when you explicitly want
* to close the viewer.
*/
public void close(){
SharedViewer.closeCalled = true;
currentCommands.executeCommand(Commands.EXIT, null);
}
/**
*
* Not part of the API.
*
* To add Viewer to your own parent node, please use:
* OpenViewerFX(Parent parentPane, String preferencesPath).
*
* @return The root of your JavaFX application
*/
public BorderPane getRoot(){
return ((JavaFxGUI)currentGUI).getRoot();
}
protected static void checkUserJavaVersion(){
if (Float.parseFloat(System.getProperty("java.specification.version")) < 1.8f) {
throw new RuntimeException("To run the JPedal FX Viewer, you must have Java8 or above installed");
}
}
}
© 2015 - 2024 Weber Informatics LLC | Privacy Policy